CN115818402A - Chain transmission type mining lifting device - Google Patents

Abstract

The invention discloses a mining hoisting device with chain transmission, which relates to the field of coal mining equipment and includes a motor, a pin coupling with a brake wheel, a planetary gear reducer, a sprocket transmission device, a roller device and a depth indicator , the motor, pin coupling with brake wheel, planetary gear reducer, sprocket drive, roller device and depth indicator are arranged in a square shape, and the output shaft of the motor is installed with a pin coupling with brake wheel , the output shaft of the motor is fixedly connected to the input shaft of the planetary gear reducer through a pin coupling with a brake wheel, the roller device is set on one side of the motor, and the output shaft of the planetary gear reducer is connected to the roller device through a sprocket transmission device The rotating shaft is driven and connected, the depth indicator is arranged at one end of the roller device, and the depth indicator is connected to the roller device by driving. The device of the present invention is more compact and easy to carry, and is suitable for roadway use.

Description

A mining hoist with chain drive

technical field

The invention belongs to the field of coal mining equipment, in particular to a mining lifting device with chain transmission.

Background technique

Mining hoists are mainly used for lifting mine shafts, inclined shafts, lowering materials or personnel; they can also be used in other occasions in the same form. The current market mining hoists, the manufacturing layout of the models is arranged in a straight line Arrangement, as shown in Figure 1, that is, the drum, connecting gear, reduction box, brake wheel, and motor are all arranged in a straight line. Since the roadway is excavated and formed by a roadheader, its width is fixed, and the arrangement of this model cannot be directly arranged in the In the roadway, since the rollers need to be arranged in parallel in the roadway, it is necessary to build a large hoist machine room in the mine roadway, which is used to place the reduction box, brake wheel and motor perpendicular to the roadway, which will consume a lot of energy. The capital and the long construction period are not suitable for the installation and use of roadways.

Therefore, how to provide a chain-driven mining hoist installed and used in the roadway has become a problem to be solved by those skilled in the art.

Contents of the invention

In view of this, the present invention provides a mine hoisting device with chain transmission. The present invention makes full use of the advantages of chain transmission, which is suitable for low-speed heavy load and long-distance transmission, and adopts a square arrangement to reduce the construction of mine machine rooms. The investment is more suitable for the installation and use of the roadway.

In order to achieve the above object, the present invention adopts the following technical scheme: a mine hoisting device with chain drive, including a motor, a pin coupling with a brake wheel, a planetary gear reducer, a sprocket drive, a roller device and a depth indicator, the motor, pin coupling with brake wheel, planetary gear reducer, sprocket drive, roller device and depth indicator are arranged in a square shape, and the output shaft of the motor is installed with a brake Wheel pin coupling, the output shaft of the motor is fixedly connected with the input shaft of the planetary gear reducer through the wheel pin coupling with brake, the roller device is arranged on one side of the motor, and the planetary gear reduces The output shaft of the device is drivingly connected with the rotating shaft of the drum device through a sprocket transmission device, and the depth indicator is arranged at one end of the drum device, and the depth indicator is drivingly connected with the drum device.

Further, the sprocket transmission device includes a sprocket and a sprocket guard, and the sprocket guard is correspondingly arranged on the outside of the sprocket.

Further, a sprocket tensioning device is also included, and the sprocket tensioning device is arranged on both sides of the sprocket.

Further, the depth indicator includes a bracket, a screw rod, a T-nut assembly, a scale plate, a pointer, two groups of proximity limit switches and a depth failure protection device, the screw rod is arranged at the center of the bracket, and the scale The plate is arranged at the front end of the bracket, the pointer is installed on the T-shaped nut assembly, the T-shaped nut is sleeved on the screw rod and threaded with the screw rod, and two sets of proximity limit switches are respectively installed at the top and bottom of the bracket , the deep failure protection device is installed on the bracket, and two groups of proximity limit switches are electrically connected with the deep failure protection device.

Further, it also includes a first bearing seat and a second bearing seat, the first bearing seat and the second bearing seat are arranged on the front and rear sides of the roller device, and the first bearing seat and the second bearing seat are both connected to the roller device The rotating shaft of the rotating connection.

Further, a disc brake is also included, and the disc brake is arranged between the drum device and the second bearing housing for braking the drum device.

The beneficial effects of the present invention are: according to the feature that the vertically installed equipment in roadway construction is not limited by the roadway, the present invention utilizes the advantages of chain transmission suitable for low-speed heavy loads and long-distance transmission, and adopts a square layout, which can lift the lifting device It is directly arranged in the roadway and is suitable for use in the roadway. The mining hoisting device of the present invention reduces the investment in the construction of the mine machine room, and the equipment is more compact and easy to carry.

Description of drawings

Fig. 1 is the arrangement mode of existing mine hoist in roadway;

Fig. 2 is the front view of the present invention;

Fig. 3 is a top view of the present invention;

Fig. 4 is a cross-sectional view of the pin coupling with brake wheel in Fig. 3 .

In the figure, 1-motor; 2-pin coupling with brake wheel; 3-planetary gear reducer; 4-roller device; 5-hydraulic station; 6-console; 7-first bearing seat; 8- Second bearing housing; 9-disc brake; 10-sprocket; 11-sprocket guard; 12-sprocket tensioning device; 13-bracket; 14-screw; 15-scale plate; 16-pointer; 17 Roadway; 18-hoist machine room.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

Example 1

As shown in Fig. 2-3, the present invention discloses a mine hoisting device with chain transmission, which includes a motor 1, a pin coupling with a brake wheel 2, a planetary gear reducer 3, a sprocket drive, and a roller The device 4 and the depth indicator, the motor 1, the pin coupling 2 with the brake wheel, the planetary gear reducer 3, the sprocket drive, the roller device 4 and the depth indicator are arranged in a square shape, and the present invention adopts a square shape Layout, suitable for the use of roadway 17, no need to build a large hoist machine room 18 in the mine roadway 17, because it takes a lot of manpower and material resources to expand the underground horizontal space, less than one meter of width can save more than 100,000 investment, and the hoisting device will be installed The horizontal reduction of space is a great contribution to coal mines.

The present invention also includes a hydraulic station 5 and a console 6, the hydraulic station 5 is connected to the brake oil cylinder pipeline on the column pin coupling 2 with brake wheels, and the console 6 is electrically connected to the motor 1 and the hydraulic station 5.

The output shaft of the motor 1 of the present invention is equipped with a pin coupling 2 with a brake wheel, and the output shaft of the motor 1 is fixedly connected with the input shaft of the planetary gear reducer 3 through the pin coupling 2 with a brake wheel. The structure of the driving wheel pin coupling 2 is shown in Figure 4. The centerlines of the input shaft and the output shaft of the planetary gear reducer 3 are on a straight line, and the roller device 4 is arranged on one side of the motor 1. Both sides are provided with a first bearing seat 7 and a second bearing seat 8, the first bearing seat 7 and the second bearing seat 8 both adopt adjustable double-row rolling bearings, and the rotating shafts at both ends of the roller device 4 are respectively rotatably connected to the first bearing On the seat 7 and the second bearing housing 8, a disc brake 9 is also arranged between the drum device 4 and the second bearing housing 8, and the brake disc of the disc brake 9 is fixedly connected with the drum device 4, and the disc brake 9 is connected with the drum device 4. The hydraulic station 5 is connected to the pipeline, and the braking of the drum device 4 is realized by clamping the brake disc. The output shaft of the planetary gear reducer 3 is driven and connected with the rotating shaft of the drum device 4 through a sprocket transmission device.

Disc brake device 9 is equipped with brake gap protection signaling device (setting distance is 2mm), disc spring failure protection signaling device (setting distance is 1.2mm), brake gap protection signaling device, disc spring failure protection signaling device The communication devices are all electrically connected with the console 6, and when the friction discs caused the left and right brake clearances to exceed 2.0mm due to wear and tear, the braking torque of the friction discs to the brake discs would be correspondingly reduced, even zero. At this time, the micro travel switch on the brake gap protection signaling device (the control distance is 2mm) will send a signal, and the hoisting device is immediately in a safe braking state, and the motor 1 of the hoisting device cannot be started, realizing the brake gap protection. At this time, the gap between the brake disc and the left and right friction plates (brake gap) should be adjusted to ≤1.5mm immediately to avoid safety accidents.

The motor 1 of the present invention uses a squirrel-cage main motor, motor power: 250KW-8, motor model YKP2-355L-8, rotating speed: 740r/min, operating voltage 380V, planetary gear reducer 3 adopts a planetary gear reducer with hard tooth surface , the sun gear and the planetary gear are made of high-strength alloy structural steel, and the hard-toothed gears manufactured by carburizing and quenching and gear grinding process are solid. Compared with all other types of reducers under the condition of transmission of the same power, it has the advantages of With a series of advantages such as small size, light weight, high efficiency, and stable operation, the mining hoist selects a planetary gear reducer with an appropriate output torque according to its technical parameters, and its nominal speed ratios are i=30, i=20 and i= 11.5 There are three types of reducers, no matter what kind of speed ratio, the design allowable revolutions of the input shaft are ≤1000 revolutions per minute.

The sprocket transmission device includes a sprocket 10 and a sprocket guard 11, the sprocket guard 11 is correspondingly arranged on the outside of the sprocket 10, and the two sides of the sprocket 10 are provided with a sprocket tensioner 12, which is used to keep the sprocket 10 tensioned states.

The depth indicator is arranged on one end of the drum device 4, and the depth indicator is connected with the drum device 4 through a bevel gear and a screw rod transmission. The depth indicator includes a bracket 13, a screw rod 14, a T-nut assembly, a scale plate 15, a pointer 16, Two sets of proximity limit switches and depth failure protection devices, the screw rod 14 is set at the center of the bracket 13, the scale plate 15 is set at the front end of the bracket 13, the pointer 16 is installed on the T-shaped nut assembly, and the T-shaped nut is set on the screw rod 14 and threaded with screw rod 14, two groups of proximity limit switches are respectively installed on the top and bottom of the bracket 13, the depth failure protection device is installed on the bracket 13, and the two groups of proximity limit switches are electrically connected with the depth failure protection device , the deep failure protection device is electrically connected with the console 6, and through the transmission of the drum device 4, the rotation amount of the output shaft is transmitted to the screw rod 14 through the bevel gear, so that the screw rod 14 rotates, and the screw rod 14 has a T-shaped pointer 16 Nut moves up and down along screw mandrel 14, and pointer 16 moves on the scale plate 15 that is fixed on support 13, draws scale on scale plate 15 according to the well depth on the spot, so pointer 16 just can indicate the position of lifting container in the shaft.

Two sets of proximity limit switches are installed at the upper and lower limit positions of the column (this position can be adjusted arbitrarily according to the site conditions). When the T-nut moves to the up and down deceleration position, the corresponding proximity limit switch sends out a deceleration signal, and the hoist can automatically realize a uniform deceleration, and the operator can also manually perform the deceleration operation; when the T-nut moves to the up and down parking position, the corresponding approach The limit switch sends a signal, and the motor 1 stops. When overwinding occurs, the deep failure protection device sends a signal to realize a total stop.

The above are only preferred embodiments of the present invention, and do not limit the technical scope of the present invention in any way, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention still belong to within the scope of the technical solutions of the present invention.

Claims (6)

1. The utility model provides a mining hoisting device of chain drive which characterized in that: the automatic feeding device comprises a motor, a pin coupling with a brake wheel, a planetary gear reducer, a chain wheel transmission device, a roller device and a depth indicator, wherein the motor, the pin coupling with the brake wheel, the planetary gear reducer, the chain wheel transmission device, the roller device and the depth indicator are arranged in a square mode, the pin coupling with the brake wheel is installed on an output shaft of the motor, the output shaft of the motor is fixedly connected with an input shaft of the planetary gear reducer through the pin coupling with the brake wheel, the roller device is arranged on one side of the motor, the output shaft of the planetary gear reducer is connected with a rotating shaft of the roller device through the chain wheel transmission device in a driving mode, the depth indicator is arranged at one end of the roller device, and the depth indicator is in driving connection with the roller device.

2. The chain drive mining hoist of claim 1, wherein the sprocket drive includes a sprocket and a sprocket guard, the sprocket guard being correspondingly disposed outboard of the sprocket.

3. A chain driven mining hoist according to claim 2, further comprising a sprocket tensioning device disposed on both sides of the sprocket.

4. The chain drive mining hoist of claim 1, characterized in that the depth indicator includes a bracket, a lead screw disposed at a central position of the bracket, a T-nut assembly, a scale plate mounted on the T-nut assembly, a pointer mounted on the lead screw and threadedly coupled to the lead screw, two sets of proximity limit switches mounted on top and bottom ends of the bracket, respectively, and a depth fail-safe device mounted on the bracket, the two sets of proximity limit switches being electrically coupled to the depth fail-safe device.

5. The mining lifting device with the chain transmission according to claim 1, further comprising a first bearing seat and a second bearing seat, wherein the first bearing seat and the second bearing seat are arranged on the front side and the rear side of the roller device, and the first bearing seat and the second bearing seat are both rotatably connected with a rotating shaft of the roller device.

6. A chain driven mining hoist according to claim 5, characterized by further comprising a disc brake disposed between the drum means and the second bearing block for braking of the drum means.

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