CN105540436B - A locking device and a method for closing a fairing using the locking device - Google Patents

Abstract

The present invention provides a locking device and a fairing closing method using the locking device, which includes two symmetrically established volume control assemblies; the volume control assembly includes an adjusting screw, an adjusting screw sleeve, a pin and a fastening bolt; There is a through hole in the middle of the adjusting screw, and the adjusting screw sleeve is set on the outside of the adjusting screw and screwed with it. There is an insertion hole on the side wall thread at the tail of the adjusting screw, and the pin is inserted in the insertion hole. The head of the adjusting screw A fastening hole matched with the fastening bolt is opened on the side wall of the upper part, and a rubber pad is abutted against the bottom of the adjusting screw sleeve, and a first matching hole is opened on the rubber pad to communicate with the position of the through hole. The cover closing method of the present invention is easy to operate, can avoid the risk of product damage, and the operator can directly adjust the external tension outside; at the same time, it also solves the problem that the cover cannot be adjusted due to the large adjustment amount, thereby greatly reducing The adjustment of the closing cover improves the safety of the docking process.

Description

A locking device and a method for closing a fairing using the locking device

technical field

The invention belongs to the field of aerospace manufacturing, and in particular relates to a locking device and a method for closing a fairing using the locking device.

Background technique

At present, the launch vehicle fairings are composed of a column structure and a cone structure in series axially, with a maximum diameter of about 5m and a maximum length of 20m, and through holes are distributed on the fairing for product lifting and transportation. The fairings of active models are assembled in a horizontal state. After the half-cover assembly is completed, the lower half-cover is placed on the track bracket in a free state, and the cover-closing work is completed by lifting the upper half-cover.

However, when the large fairing is closed in the horizontal state, after the shell section is hoisted, the upper half of the cowl is stretched outwards by the tension of the suspension. However, the lower half-cover shell is in an upside-down state, and the different positions and deformations under the action of the product's own weight are inconsistent, and the amount of misalignment is difficult to control. At the same time, due to the influence of the shape of the cone section of the fairing, the docking situation is more complicated. When assembling the cover between the two half covers, it is necessary to adjust the deformation of the two half covers at the same time to fully insert the lifted upper half cover into the opening of the lower half cover. Forcible assembly will seriously affect the assembly quality of the fairing, resulting in damage to the internal bonding structure of the shell.

But the reality is that the fairing deforms severely when closing the cover, so it is difficult to coordinate positioning, and the staff inside the fairing cannot use a dedicated operating platform, which tends to slip during work, so they cannot reach the height of the separation surface for operation.

Contents of the invention

In view of this, the present invention aims to provide a locking device to solve the problem that the fairing deformation cannot be adjusted at any time.

In order to achieve the above object, technical solution of the present invention is achieved in that way:

A locking device, which includes two symmetrically set up volume control components;

The volume control assembly includes an adjusting screw, an adjusting screw sleeve, a pin and a fastening bolt;

There is a through hole in the middle of the adjusting screw, the adjusting screw sleeve is sleeved on the outside of the adjusting screw and screwed with it, and there is an insertion hole on the side wall thread at the tail of the adjusting screw, and the pin is inserted into the insertion hole Inside, the side wall of the head of the adjusting screw is provided with a fastening hole that cooperates with the fastening bolt, and the bottom of the adjusting screw sleeve is abutted against a rubber pad, and the rubber pad is provided with a hole that communicates with the position of the through hole. the first matching hole;

A rope sequentially passes through the through hole and the first matching hole of one volume control component and the first matching hole and through hole of the other volume control component to connect the two volume control components in series, and the fastening bolt is connected to the Adjust the rope abutment inside the screw head.

Further, the outside of the adjusting screw rod is also sleeved with a fastening nut, and the fastening nut abuts against the top of the adjusting screw sleeve.

Further, the outer wall diameter of the bottom end of the adjusting screw sleeve is larger than the outer wall diameters of other parts of the adjusting screw sleeve.

Further, an aluminum washer is placed between the adjusting screw sleeve and the rubber pad, and the aluminum washer is also provided with a second matching hole corresponding to the position of the through hole, and the first matching hole passes through the second matching hole. communicate with the through hole.

Further, the distance from the top end surface of the pin to the centerline of the adjusting screw is less than or equal to the radius of the external thread of the adjusting screw.

Further, the rope is nylon rope.

Compared with the prior art, a locking device described in the present invention has the following advantages:

(1) The structure of the volume control assembly according to the present invention includes an adjustment screw, an adjustment screw sleeve, a pin and a fastening bolt, and the two volume control assemblies are connected in series by a rope. Such an overall structural design can quickly and simply adjust the two The distance between the control components is the length of the rope between them;

Therefore, when using this locking device, the overall operating efficiency can be adjusted. At the same time, because it is realized by utilizing the principle of thread cooperation between the adjusting screw rod and the adjusting screw sleeve, the overall manufacturing cost is low and there will be no excessive accidents. .

(2) The establishment of the pin described in the present invention can further improve the use safety of the lock, that is, the pin is equivalent to a limiter, and when the adjustment screw sleeve and the adjustment screw interact with each other to this position, they stop immediately, thereby preventing adjustment The situation where the screw rod breaks away from the adjusting screw sleeve occurs.

Another object of the present invention is to provide a fairing closing method using the above-mentioned locking device, so as to solve the requirement of fast closing while ensuring a high degree of cooperation between the two half-covers.

In order to achieve the above object, technical solution of the present invention is achieved in that way:

A method for closing a fairing utilizing the above-mentioned locking device, the specific steps of which include:

The fairing includes an upper half cover and a lower half cover;

Step 1, the lower half cover is placed on the bracket with the shell upside down, and the upper half cover is placed on the ground with the shell buckled;

Step 2, select several groups of through hole positions on the upper half cover and the lower half cover as adjustment points;

Step 3: Initially check the external tension of the adjustment points on the upper half cover and the lower half cover, and install the central control components of the locking device in the corresponding through holes;

Step 4, install and hang the upper half cover and lift it off the ground;

Step 5, measure and compare the outer tensor values of the two half-covers again, and adjust the locking device until the outer tensors of the two half-covers are consistent;

Step 6, continue to lift the upper half cover;

Step 7: Slowly lower the rear end of the upper half cover until it is fastened with the lower half cover, and then slowly lower the front end of the upper half cover until it is buckled with the lower half cover.

Further, the through hole near the position of the upper half cover as the lifting point is selected as the adjustment point.

Further, when lifting the upper half cover, it is necessary to correspond the position of the upper half cover with the position of the lower half cover.

Further, 3-5 groups of through holes are respectively selected on the upper half cover and the lower half cover as adjustment points.

Further, the front end of the fairing is connected and fixed with a front positioning ring frame, and the rear end of the fairing is connected and fixed with a rear end positioning ring frame for the fairing formed after the upper half cover and the lower half cover are combined.

Further, the hangers installed on the upper half cover include at least two hangers, and the hangers are symmetrically distributed on the upper half cover.

Further, the method for installing the locker in the through hole is as follows:

a. The adjustment screw in the volume control component is screwed into the corresponding adjustment screw sleeve, the rope is passed through the adjustment screw, and then the fastening bolt is screwed in and the rope is locked;

b. Connect the aluminum washer and the rubber pad, the rope is passed through the hole on one side of the half cover, and then passed through the corresponding hole on the other side, and at the same time connect the rubber pad and the aluminum washer in another volume control component. When the threaded end of the rope passes through the adjusting screw of another volume control component;

c. Adjust the length of the rope in the half cover, and then use the fastening bolt on the volume control assembly to lock the rope;

d. Tighten the fastening nut until it abuts against the adjusting screw sleeve.

Compared with the prior art, a method for closing the fairing using the above-mentioned locking device according to the present invention has the following advantages:

(1) The cover closing method of the present invention is easy to operate, can avoid the risk of product damage, and the operator can directly adjust the external tension outside;

At the same time, it also solves the problem that the adjustment cannot be adjusted due to the large adjustment amount when closing the cover, thereby greatly reducing the adjustment amount of the cover closing, and improving the safety of the docking process.

(2) The method of hanging symmetrically on the upper half cover according to the present invention can realize that the front and rear ends of the upper half cover can be adjusted according to the actual situation when lifting, and solve the problem that the posture is difficult to adjust when the single beam is hoisted in a herringbone shape question.

Description of drawings

The drawings constituting a part of the present invention are used to provide a further understanding of the present invention, and the schematic embodiments and descriptions of the present invention are used to explain the present invention, and do not constitute an improper limitation of the present invention. In the attached picture:

Fig. 1 is a schematic diagram of the overall structure of the locking device described in the embodiment of the present invention;

Fig. 2 is a schematic diagram of the hanging establishment position of the upper half cover described in the embodiment of the present invention;

Fig. 3 is a schematic structural view of the combination of the upper half cover and the lower half cover described in the embodiment of the present invention;

Fig. 4 is a schematic diagram of the cooperation process of the upper half cover and the lower half cover described in the embodiment of the present invention;

Fig. 5 is a schematic side view of the cooperation between the upper half cover and the lower half cover according to the embodiment of the present invention;

Fig. 6 is a schematic side view of the combination of the upper half cover and the lower half cover according to the embodiment of the present invention.

Explanation of reference signs:

1-adjusting screw; 2-fastening bolt; 3-fastening nut; 4-adjusting screw sleeve; 5-pin; 6-aluminum washer; 7-rubber ring; 8-rope; Half cover; 101-hanging; 11-through hole; 12-lifting measure; 13-lifting rope; 14-front positioning ring frame; 15-back positioning ring frame.

detailed description

It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, a feature defined as "first", "second", etc. may expressly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention based on specific situations.

The present invention will be described in detail below with reference to the accompanying drawings and examples.

As shown in Figure 1, a locking device includes two symmetrically set up volume control components;

The volume control assembly includes an adjusting screw 1, an adjusting screw sleeve 4, a pin 5 and a fastening bolt 2;

There is a through hole in the middle of the adjusting screw 1, the adjusting screw sleeve 4 is set on the outside of the adjusting screw 1 and screwed with it, and an insertion hole is opened on the side wall thread at the tail of the adjusting screw 1, and the pin 5 It is inserted into the insertion hole, and the distance from the top end surface of the pin 5 to the centerline of the adjusting screw 1 is less than or equal to the radius of the external thread of the adjusting screw 1;

The side wall of the head of the adjusting screw 1 is provided with a fastening hole to cooperate with the fastening bolt 2, and the outer wall diameter of the bottom end of the adjusting screw sleeve 4 is larger than the outer wall diameter of other parts of the adjusting screw sleeve 4. The bottom of the adjusting screw sleeve 4 is sequentially abutted with an aluminum washer 6 and a rubber pad 7. The aluminum washer 6 is provided with a second fitting hole corresponding to the position of the through hole, and the rubber pad 7 is provided with a hole matching the position of the through hole. The first matching hole communicates with the through hole through the second matching hole.

A rope 8 connects the two volume control assemblies in series by passing through the through hole and the first matching hole of one volume control assembly and the first cooperation hole and the through hole of the other volume control assembly in sequence, and the fastening bolt 2 Abut against the rope 8 located in the head of the adjusting screw 1, the rope mentioned here is relatively strong and inelastic, and can be selected as a nylon rope.

The outside of the adjusting screw 1 is also covered with a tightening nut 3, and the tightening nut 3 abuts against the top of the adjusting screw sleeve 4, and the setting of the tightening nut 3 is also to further limit the adjusting screw 1. , to prevent relative sliding between the adjusting screw 1 and the adjusting screw sleeve 4 during use.

As shown in Figure 2-6, a method for closing a fairing using a locker, the specific steps include:

The fairing includes an upper half cover 10 and a lower half cover 9;

Step 1, the lower half-cover 9 is placed on the bracket in the state of facing up, and the upper half-cover 10 is placed on the ground in the state of buckling the shell;

Step 2, select 3-5 groups of through holes 11 on the upper half cover 10 and the lower half cover 9 respectively as adjustment points, and select the through holes 11 near the hanging point position of the installation hanging 101 mentioned below as adjustment points ;

Step 3: Preliminarily check the external tension of the adjustment points on the upper half cover 10 and the lower half cover 9 and install the control components of the locking device in the corresponding through holes 11;

Step 4, install the hanger 101 on the upper half cover 10 and lift it off the ground. At the same time, when lifting the upper half cover, it is necessary to correspond the position of the upper half cover with the position of the lower half cover;

The hangers 101 installed on the upper half cover 10 include at least two hangers 101, and the hangers 101 are symmetrically distributed on the upper half cover 10;

Step 5: Measure and compare the outer tensor values of the two half covers again, and adjust the locking device until the outer tensors of the two half covers are the same; that is, to adjust the length of the rope in the half cover, the specific adjustment is: adjust and adjust with a wrench When the screw sleeve 4 is adjusted with the length of the screw thread of the adjustment screw 1, the fastening nut 3 plays the role of fixing the position of the adjustment screw sleeve 4;

Step 6, continue to lift the upper half cover 10;

Step 7, the rear end of the upper half cover 10 is first slowly lowered until it is fastened with the lower half cover 9, and then the front end of the upper half cover 10 is slowly lowered until it is buckled with the lower half cover 9;

Step 8: For the fairing formed after the upper half cover 10 and the lower half cover 9 are merged, the front end of the fairing is connected and fixed with a front positioning ring frame 14, and the rear end of the fairing is connected with a rear end positioning ring frame 15 fixed.

Step 9, disassemble the hanger and locker;

Step ten, follow-up work.

The method for installing the locking device in the through hole 11 is as follows:

a. The adjustment screw 1 in the volume control assembly is screwed into the corresponding adjustment screw sleeve 4, the rope 8 is passed through the adjustment screw 1, and then the fastening bolt 2 is screwed in and the rope 8 is locked;

b. Connect the aluminum washer 6 and the rubber pad 7, the rope 8 passes through the through hole 11 on one side of the half cover, and then passes through the corresponding through hole 11 on the other side, and at the same time connects the rubber pad in another volume control component 7 and the aluminum washer 6, the threaded end of the rope 8 passed through the adjusting screw 1 of another volume control assembly;

c. Adjust the length of the rope 8 in the half cover, and then use the fastening bolt 2 on the volume control assembly to lock the rope 8;

d. The fastening nut 3 is screwed until it abuts against the adjusting screw sleeve 4 .

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims (10)

1. a kind of locker, it is characterised in that：Including two control symmetrically set up amount components；

The control amount component includes adjusting bolt (1), adjustment swivel nut (4), pin (5) and fastening bolt (2)；

Be provided with through hole in the middle part of the adjusting bolt (1), the adjustment swivel nut (4) be placed on the outside of the adjusting bolt (1) and with It is screwed togather, and spliced eye is provided with the sidewall thread of adjusting bolt (1) afterbody, the pin (5) is inserted in the spliced eye, described The fastener hole coordinated with fastening bolt (2) is provided with the head side wall of adjusting bolt (1), the bottom of the adjustment swivel nut (4) is supported Rubber blanket (7) is connected to, is provided with the rubber blanket (7) and first mating holes connected through hole site cooperation；

One rope (8) is by sequentially passing through the through hole and the first mating holes and another control amount component of control amount component First mating holes and through hole and two control amount components are concatenated, and the fastening bolt (2) with positioned at adjusting bolt (1) head Interior rope (8) is abutted.

2. a kind of locker according to claim 1, it is characterised in that：The outside of the adjusting bolt (1) is also cased with tightly Gu nut (3), the clamp nut (3) is connected to the top of the adjustment swivel nut (4).

3. a kind of locker according to claim 1, it is characterised in that：It is described adjustment swivel nut (4) and rubber blanket (7) it Between be also lined with aluminium packing ring (6), be also provided with the aluminium packing ring (6) and through corresponding second mating holes in hole site, described first matches somebody with somebody Hole is closed to connect with through hole by the second mating holes.

4. a kind of locker according to claim 1, it is characterised in that：Pin (5) the top end face is to adjusting bolt (1) distance of center line is less than or equal to the external screw thread radius of the adjusting bolt (1).

5. a kind of conjunction cover method of the radome fairing of the locker described in utilization claim 1, it is characterised in that：Specific steps bag Include：

Radome fairing includes upper half cover (10) and lower half cover (9)；

Step one, lower half cover (9) is placed on bracket with state on one's back, and upper half cover (10) is placed on ground with buckleing shelly state；

Step 2, chooses upper half cover (10) and upper several groups of through holes (11) position of lower half cover (9) as adjustment point；

The outer tensor of step 3, initial survey upper half cover (10) and lower half cover (9) up-regulation integral point simultaneously distinguishes control amount component in locker In corresponding through hole (11)；

Step 4, upper half cover (10) installs hanging (101) and lifts by crane liftoff；

Step 5, measures and compares tensor outside the outer tensor numerical value of two and half covers, adjustment locker to two halves cover consistent again；

Step 6, continues to lift by crane upper half cover (10)；

Step 7, drop is delayed into the rear end of upper half cover (10) first until with lower half cover (9) fastening untill, then by upper half cover (10) The slow drop in front end with lower half cover (9) untill fastening.

6. a kind of conjunction cover method of the radome fairing of utilization locker according to claim 5, it is characterised in that：Upper half cover (10) adjustment point is elected as the through hole (11) near hoisting point position.

7. a kind of conjunction cover method of the radome fairing of utilization locker according to claim 5, it is characterised in that：Upper half cover (10) 3-5 groups through hole (11) and on lower half cover (9) is chosen respectively as adjustment point.

8. a kind of conjunction cover method of the radome fairing of utilization locker according to claim 5, it is characterised in that：In upper half cover (10) radome fairing and after lower half cover (9) merging constituted, the front end of the radome fairing is connected with a prelocalization ring stand (14), The rear end of radome fairing is connected with a rear alignment ring stand (15).

9. a kind of conjunction cover method of the radome fairing of utilization locker according to claim 5, it is characterised in that：The upper half Covering the hanging (101) (10) installed at least includes two hangings (101), and hanging (101) is symmetrically distributed on upper half cover (10).

10. a kind of conjunction cover method of the radome fairing of utilization locker according to claim 5, it is characterised in that：The lock Tightly method of the device in through hole (11) is：

A. the adjusting bolt (1) in a control amount component screws in corresponding adjustment swivel nut (4), and rope (8) is worn from adjusting bolt (1) Enter, be then screwed into fastening bolt (2) and lock rope (8)；

B. connection aluminium packing ring (6) and rubber blanket (7), a side through hole (11) for rope (8) from half cover are penetrated, then from corresponding another Side through hole (11) is passed, while reconnect rubber blanket (7) in another control amount component and aluminium packing ring (6), now rope (8) Traversing through end passes through the adjusting bolt (1) of another control amount component；

C. length of the adjustment rope (8) in half cover, then locks rope (8) using the fastening bolt (2) on the control amount component；

D. clamp nut (3) is screwed onto abuts with adjustment swivel nut (4).