CN116039755A - Fixing structure for steering cylinder of steering drive axle of cotton picker - Google Patents

Abstract

The utility model provides a cotton picker steering drive axle steering cylinder fixed knot constructs, relates to steering cylinder fixing device technical field, including main reducer casing, has seted up the hydro-cylinder via hole on the main reducer casing, and the steering cylinder is fixed in the hydro-cylinder via hole through the hydro-cylinder fixing base. The invention solves the problems that the steering cylinder fixing device in the prior art is either integrally arranged, is inconvenient to disassemble and is inconvenient to maintain; or the split type gap exists, so that the oil cylinder is easy to reciprocate and move when steering, and the oil cylinder or the oil cylinder seat can be worn after long-time working.

Description

Cotton Picker Steering Drive Axle Steering Oil Cylinder Fixing Structure

technical field

The invention relates to the technical field of a steering oil cylinder fixing device, in particular to a steering oil cylinder fixing structure of a steering drive axle of a cotton picker.

Background technique

The cotton picker is a heavy tool for cotton planting and harvesting, and it is also a short board industry of cotton planting machinery in my country. The steering drive axle of the cotton picker plays the role of transmitting power and steering during the operation of the cotton picker. The steering performance is determined by the steering The oil cylinder is completed, and the steering oil cylinder plays the role of driving the wheel to swing and turn when the vehicle is turning.

A CN209063814U patent is disclosed in the prior art. The scheme includes a bridge body, a steering knuckle and a wheel hub. The two ends of the bridge body are respectively equipped with a steering knuckle I and a steering knuckle II, and the outer sides of the steering knuckle I and steering knuckle II are installed with The hub, the steering knuckle I and the steering knuckle II are equipped with crank arm I and crank arm II, one end of the crank arm I is connected to one end of the oil cylinder through the connecting arm I, and the other end of the oil cylinder is connected to one end of the crank arm II through the connecting arm II , the other end of the crank arm II is connected with the other end of the crank arm I through the connecting arm III.

With the use of existing devices, the shortcomings of this technology have gradually been exposed, mainly in the following aspects:

First, the existing way of fixing the steering cylinder of the steering drive axle is to weld the cylinder seat and the cylinder together, and fix it by bolt fastening. This kind of structure is costly. Once the steering cylinder fails, it is extremely inconvenient to disassemble and time-consuming to repair. strenuous.

Second, there is another way of fixing the steering cylinder of the existing steering drive axle. The oil cylinder seat and the oil cylinder are two parts, and the oil cylinder is installed between the oil cylinder seats. There is a gap between the oil cylinder and the oil cylinder seat in this structure, and the oil cylinder is easy to turn If the reciprocating movement occurs, the oil cylinder or the oil cylinder seat will be worn after a long time of work, resulting in the failure of the oil cylinder. If the adjustment is made through the adjustment pad, the number of adjustment pieces is not easy to quantify, which will affect the production cycle.

In summary, there are obviously inconveniences and defects in the actual use of the prior art, so it is necessary to improve it.

Contents of the invention

Aiming at the defects in the prior art, the present invention solves the problem that the steering oil cylinder fixing device in the traditional technology is either set integrally, which is inconvenient to disassemble and maintain; After working for a long time, the cylinder or the cylinder seat will wear out.

In order to solve the above problems, the present invention provides the following technical solutions:

The steering oil cylinder fixing structure of the steering drive axle of the cotton picker includes a main reducer housing, and an oil cylinder through hole is opened on the main reducer housing, and the steering oil cylinder is fixed in the oil cylinder through hole through the oil cylinder fixing seat.

As an optimized solution, a circumferential limiting structure is provided between the oil cylinder fixing seat and the steering oil cylinder.

As an optimized solution, an axial limit mechanism is provided between the oil cylinder fixing seat and the steering oil cylinder.

As an optimized solution, a positioning structure is provided between the oil cylinder fixing seat and the final reducer housing.

As an optimized solution, a pre-tightening gap is provided between the oil cylinder fixing seat and the final reducer housing.

As an optimized solution, the circumferential limiting structure includes an open slot provided on the inner hole of the oil cylinder fixing seat, and a positioning pin matching the open slot is fixed on the peripheral wall of the steering oil cylinder.

As an optimized solution, the axial limit mechanism includes a retaining ring groove opened on the peripheral wall of the steering cylinder, a circular retaining ring is arranged in the retaining ring groove, and the positioning pin is clamped on the After being inside the opening groove, one end of the oil cylinder fixing seat is axially limited, and the circular retaining ring abuts against the other end of the oil cylinder fixing seat and axially limits.

As an optimized solution, the inner hole of the oil cylinder fixing seat is provided with a first chamfer toward one end of the circular retaining ring, and the oil cylinder through hole is provided with a second chamfer toward one end of the circular retaining ring, The circlip is constrained between the first chamfer and the second chamfer.

As an optimized solution, the two sides of the circular retaining ring respectively abut against the first chamfer and the second chamfer, and form a gap between the cylinder fixing seat and the final reducer housing. The preload gap.

As an optimized solution, the positioning structure includes several through holes opened around the inner hole of the oil cylinder fixing seat, and the end surface of the oil cylinder fixing seat surrounds the oil cylinder through hole to open a plurality of through holes corresponding to the through holes. Corresponding threaded holes and fastened with bolts.

As an optimized solution, a pin hole is opened on the peripheral wall of the steering cylinder, and the positioning pin is inserted into the pin hole.

Compared with prior art, the beneficial effect of the present invention is:

This structure has been verified by 100,000 times of steering bench, safe and reliable, and the oil cylinder fixing seat and steering cylinder are not worn;

And there is no need to adjust in the actual assembly process, compared with the traditional adjustment pad adjustment installation, the production cycle is increased by more than 60%;

The cotton picking time is short, only about 40 days, and the user's income is high. Once the steering cylinder fails, this structure is easy to disassemble and install, which greatly saves the maintenance time of the user in the busy farming season and improves the user's income.

Description of drawings

In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the specific embodiments or the prior art. Throughout the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, elements or parts are not necessarily drawn in actual scale.

Fig. 1 is the structural representation of the split state of the present invention;

Fig. 2 is the structural representation of oil cylinder fixed seat of the present invention;

Fig. 3 is the structural representation of retaining ring groove of the present invention;

Fig. 4 is a structural schematic diagram of the oil cylinder fixing seat of the present invention after assembly;

Fig. 5 is the structural schematic diagram of the whole of the present invention;

Fig. 6 is a structural schematic diagram of the pre-tightening gap of the present invention.

In the figure: 1-main reducer housing; 2-oil cylinder through hole; 3-steering cylinder; 4-oil cylinder fixing seat; 5-opening groove; 6-locating pin; 7-retaining ring groove; 9-through hole; 10-bolt; 11-first chamfer; 12-second chamfer; 13-preload gap.

Detailed ways

Embodiments of the technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and therefore are only examples, rather than limiting the protection scope of the present invention.

As shown in Figures 1 to 6, the fixed structure of the steering drive axle of the cotton harvester includes the main reducer housing 1, the main reducer housing 1 is provided with an oil cylinder through hole 2, and the steering cylinder 3 passes through the oil cylinder fixing seat 4 It is fixed in the through hole 2 of the oil cylinder.

A circumferential limiting structure is provided between the oil cylinder fixing seat 4 and the steering oil cylinder 3 .

An axial limit mechanism is arranged between the oil cylinder fixing seat 4 and the steering oil cylinder 3 .

A positioning structure is provided between the oil cylinder fixing base 4 and the final reducer housing 1 .

A pre-tightening gap 13 is provided between the oil cylinder fixing seat 4 and the final reducer housing 1 .

The circumferential limit structure includes an opening groove 5 provided on the inner hole of the oil cylinder fixing seat 4 , and a positioning pin 6 matching the opening groove 5 is fixedly provided on the peripheral wall of the steering oil cylinder 3 .

The axial limit mechanism includes a retaining ring groove 7 provided on the peripheral wall of the steering oil cylinder 3, a circular retaining ring 8 is arranged in the retaining ring groove 7, and the positioning pin 6 is clamped in the opening groove 5, and one end of the oil cylinder fixing seat 4 is fixed. Axially limited, the circular retaining ring 8 abuts against the other end of the oil cylinder holder 4 and carries out axially limited.

The inner hole of the oil cylinder fixing seat 4 is provided with a first chamfer 11 toward one end of the circular retaining ring 8, and the second chamfer 12 is provided at the end of the oil cylinder through hole 2 facing the circular retaining ring 8, and the circular retaining ring 8 is constrained by the first chamfer. Between the corner 11 and the second chamfer 12.

The two sides of the circular retaining ring 8 respectively abut against the first chamfer 11 and the second chamfer 12 , and form a pre-tightening gap 13 between the cylinder fixing seat and the final reducer housing 1 .

The positioning structure includes several through holes 9 opened around the inner hole of the oil cylinder fixing seat 4, and the end surface of the oil cylinder fixing seat 4 is provided with threaded holes corresponding to the through holes 9 around the oil cylinder through hole 2, and the bolts 10 are used for fastening. .

A pin hole is provided on the peripheral wall of the steering oil cylinder 3, and the positioning pin 6 is inserted in the pin hole.

The installation steps of this device are:

1. Install the positioning pin 6 into the pin hole of the steering oil 2;

2. The oil cylinder fixing seat 4 passes through the steering cylinder 3 until the positioning pin 6 enters the opening groove 5 of the oil cylinder fixing seat 4;

3. Install the steel wire circular retaining ring 8 into the retaining ring groove 7 of the steering cylinder 3, and position the oil cylinder fixing seat 4 through the positioning pin 6 and the steel wire circular retaining ring 8;

4. Assemble the steering cylinder 3 into the oil cylinder hole 2 of the main reducer housing 1 until the steel wire retaining ring 8 touches the second chamfer 12 on the end face of the main reducer housing 1, and fix the cylinder with bolts 10 4 Fasten to the main reducer housing 1, and finally assemble the oil cylinder fixing structure;

Among them, the end face of the main reducer housing 1 is provided with a second chamfer 12, the end face of the oil cylinder fixing seat 4 is provided with a first chamfer 11, and the steel wire circular retaining ring 8 is located between the two chamfers. After assembly, the main reducer housing 1 There will be a gap A between the end face and the end face of the oil cylinder holder 4;

The pre-tightening force after the bolt 10 is tightened will make the oil cylinder fixing seat 4 elastically deformed, the end face of the main reducer housing 1 and the end face of the oil cylinder fixing seat 4 will be close, the gap A will be eliminated, and the round steel wire retaining ring will be on the oil cylinder fixing seat 4 and the main reducer housing 1 are in a compressed state, without axial displacement, so as to fix the oil cylinder, and the reciprocating force generated when the oil cylinder is working is applied to the round steel wire retaining ring and against the housings on both sides Chamfer end face for positioning.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present invention. All of them should be covered by the scope of the claims and description of the present invention.

Claims (10)

1. The cotton picker turns to transaxle steering cylinder fixed knot constructs, its characterized in that: the steering oil cylinder comprises a main speed reducer shell (1), wherein an oil cylinder through hole (2) is formed in the main speed reducer shell (1), and a steering oil cylinder (3) is fixed in the oil cylinder through hole (2) through an oil cylinder fixing seat (4).

2. The cotton picker steering drive axle steering cylinder fixing structure according to claim 1, wherein: a circumferential limiting structure is arranged between the oil cylinder fixing seat (4) and the steering oil cylinder (3).

3. The cotton picker steering drive axle steering cylinder fixing structure according to claim 2, characterized in that: an axial limiting mechanism is arranged between the oil cylinder fixing seat (4) and the steering oil cylinder (3).

4. The cotton picker steering drive axle steering cylinder fixing structure according to claim 1, wherein: and a positioning structure is arranged between the oil cylinder fixing seat (4) and the main speed reducer shell (1).

5. The cotton picker steering drive axle steering cylinder fixing structure according to claim 3, wherein: a pre-tightening gap (13) is arranged between the oil cylinder fixing seat (4) and the main speed reducer shell (1).

6. The cotton picker steering drive axle steering cylinder fixing structure according to claim 5, wherein: the circumferential limiting structure comprises an opening groove (5) formed in an inner hole of the oil cylinder fixing seat (4), and a locating pin (6) matched with the opening groove (5) is fixedly arranged on the circumferential wall of the steering oil cylinder (3).

7. The cotton picker steering drive axle steering cylinder fixing structure according to claim 6, wherein: the axial limiting mechanism comprises a retainer ring groove (7) formed in the peripheral wall of the steering cylinder (3), a round retainer ring (8) is arranged in the retainer ring groove (7), the locating pin (6) is clamped in the opening groove (5) and then axially limits one end of the cylinder fixing seat (4), and the round retainer ring (8) abuts against the other end of the cylinder fixing seat (4) and axially limits the cylinder fixing seat.

8. The cotton picker steering drive axle steering cylinder fixing structure according to claim 7, wherein: the inner hole of the oil cylinder fixing seat (4) faces one end of the round retainer ring (8) to form a first chamfer (11), the oil cylinder via hole (2) faces one end of the round retainer ring (8) to form a second chamfer (12), and the round retainer ring (8) is restrained between the first chamfer (11) and the second chamfer (12).

9. The cotton picker steering drive axle steering cylinder fixing structure according to claim 7, wherein: the two sides of the round retainer ring (8) are respectively propped against the first chamfer angle (11) and the second chamfer angle (12), and a pre-tightening gap (13) is formed between the cylinder fixing seat and the main speed reducer shell (1).

10. The cotton picker steering drive axle steering cylinder fixing structure according to claim 4, wherein: the positioning structure comprises a plurality of through holes (9) formed around the inner hole of the oil cylinder fixing seat (4), threaded holes corresponding to the through holes (9) are formed around the oil cylinder through holes (2) on the end face of the oil cylinder fixing seat (4), and the positioning structure is fastened by bolts (10).

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