CN220845260U - Mining winch gearbox with brake - Google Patents

Abstract

The utility model belongs to the field of gear box equipment, and particularly relates to a mining winch gear box with a brake, which comprises a motor, a planetary reducer, a main reducer and a winch output shaft, wherein a brake is connected between the motor and the planetary reducer, the brake comprises a shell, a transmission shaft is arranged in the shell and comprises a large end used for being connected with the motor output shaft, and further comprises a small end used for being connected with the input end of the planetary reducer, a plurality of friction plates and steel plates which are arranged in a staggered manner are arranged between the large end and the shell, one end of each friction plate is inserted into the shell, one end of each steel plate is inserted into the side face of the large end, a piston and a butterfly spring used for pushing the piston to press the friction plate or the steel plate are further arranged in the shell, and an oil inlet used for supplying oil into the shell and pushing the piston to press the butterfly spring is arranged on the upper side face of the shell.

Description

Mining winch gearbox with brake

Technical Field

The utility model belongs to the field of gear box equipment, and particularly relates to a mining winch gear box with a brake.

Background

The existing winch gearbox has no braking function, so that the motor needs to continuously work or keep certain pressure, the energy consumption is overlarge, the existing winch gearbox has certain risk, if the motor fails, the existing winch gearbox is easy to be dangerous when a heavy object is pulled by the winch gearbox, and personnel and equipment are damaged.

Disclosure of utility model

The utility model provides a mining winch gearbox with a brake, which can prevent a car from sliding.

In order to achieve the above purpose, the technical scheme includes that the mining winch gearbox with the brake comprises a motor, a planetary reducer, a main reducer and a winch output shaft, wherein the brake is connected between the motor and the planetary reducer, the brake comprises a shell, a transmission shaft is arranged in the shell and comprises a large end used for being connected with the motor output shaft, the transmission shaft further comprises a small end used for being connected with the input end of the planetary reducer, a plurality of friction plates and steel plates which are arranged in a staggered mode are arranged between the large end and the shell, one end of each friction plate is inserted into the shell, one end of each steel plate is inserted into the side face of the large end, a piston and a butterfly spring used for pushing the piston to press the friction plate or the steel plate are further arranged in the shell, and an oil inlet used for supplying oil to the shell and pushing the piston to press the butterfly spring is arranged on the upper side face of the shell.

Preferably, the small end is provided with an external spline, and the large end is provided with an internal spline.

Preferably, two ends of the shell are respectively provided with an output flange fixedly connected with the planetary reducer shell and an input flange fixedly connected with the motor shell.

Preferably, two seals are provided on the piston.

Compared with the prior art, the utility model has the advantages and positive effects that,

According to the utility model, the brake is controlled by the controller, the motor starts to work when stopping rotating, the oil inlet of the brake is not fed during working, and the butterfly spring in the brake can push the piston to press the steel sheet or the friction sheet, so that friction force is generated between the steel sheet and the friction sheet, the rotation of the transmission shaft is blocked, and the winch output shaft is braked, so that the phenomenon of slipping is prevented.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort to a person skilled in the art.

FIG. 1 is a schematic diagram of a mining winch gearbox with a brake;

FIG. 2 is a schematic structural view of a brake actuator;

Fig. 3 is an enlarged view of the structure at a in fig. 2.

In the above figures, 1, a motor; 2. a brake actuator; 21. a housing; 211. an oil inlet; 22. an output shaft; 221. a small end; 222. a large end; 23. a piston; 24. a belleville spring; 25. an output flange; 26. an input flange; 27. a steel sheet; 28. a friction plate; 29. a seal; 3. a planetary reducer; 4. a main speed reducer; 5. and an output shaft of the winch.

Detailed Description

In order that the above objects, features and advantages of the utility model will be more clearly understood, a further description of the utility model will be rendered by reference to the appended drawings and examples. It should be noted that, without conflict, the embodiments of the present utility model and features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced otherwise than as described herein, and therefore the present utility model is not limited to the specific embodiments of the disclosure that follow.

As shown in fig. 1, 2 and 3, the mining winch gearbox with the brake comprises a motor 1, a planetary reducer 3, a main reducer 4 and a winch output shaft 5, wherein the main reducer 4 is connected with the winch output shaft 5 in a gear connection mode, and power output by the motor 1 rotates the winch output shaft 5 through transmission of the planetary reducer 3, the main reducer 4 and other components. In order to increase the braking function, a brake 2 is connected between a motor 1 and a planetary reducer 3, the brake 2 comprises a shell 21, a transmission shaft is arranged in the shell 21 and comprises a large end 222 for being connected with an output shaft 22 of the motor 1, a plurality of friction plates 28 and steel plates 27 which are arranged in a staggered manner are arranged between the large end 222 and the shell 21, one end of each friction plate 28 is inserted into the shell 21, one end of each steel plate 27 is inserted into the side surface of the large end 222, and the head end of each friction plate 28 and the head end of each steel plate 27 in a staggered manner are the friction plates 28 or the steel plates 27, so that a piston 23 and a butterfly spring 24 for pushing the piston 23 to press the friction plates 28 or the steel plates 27 are also arranged in the shell 21, and an oil inlet 211 for supplying oil into the shell 21 and pushing the piston 23 to press the butterfly spring 24 is arranged on the upper side surface of the shell 21.

The working principle of the utility model is as follows: when the brake actuator 2 does not work, the oil inlet 211 is used for feeding oil, so that the piston 23 is separated from the friction plate 28 or the steel sheet 27, a gap is reserved between the friction plate 28 and the steel sheet 27, friction force does not exist between the friction plate 28 and the steel sheet 27, and at the moment, the motor 1 can output power through the brake actuator 2 to drive the winch output shaft 5 to rotate. When the brake actuator 2 works, the oil inlet 211 does not enter oil, the butterfly spring 24 pushes the piston 23 to press the friction plate 28 or the steel sheet 27, so that no gap exists between the friction plate 28 and the steel sheet 27, friction force is generated between the friction plate 28 and the steel sheet 27, the output shaft 22 cannot rotate, and therefore the winch output shaft 5 cannot rotate under the influence of the friction force, and braking is achieved. Additionally, the oil inlet 211 is supplied with oil by an oil pump, and the oil pump and the motor 1 are simultaneously controlled by a controller.

Further, the small end 221 is provided with external splines, and the large end 222 is provided with internal splines. The external spline and the internal spline are spline coupling mechanisms, and belong to common mechanical connection modes, and are not described herein.

Further, the two ends of the housing 21 are respectively provided with an output flange 25 for fixedly connecting with the planetary reducer housing, and an input flange 26 for fixedly connecting with the motor housing.

Further, two seals 29 are provided on the piston 23. Specifically, there is a gap between the piston 23 and the housing 21, and when oil is supplied thereto through the oil inlet 211, the piston 23 moves while two seals 29 are located on both sides of the gap for preventing oil from escaping.

The present utility model is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present utility model without departing from the technical content of the present utility model still belong to the protection scope of the technical solution of the present utility model.

Claims (4)

1. The utility model provides a take mining winch gear box of brake, includes motor, planetary reducer, main reducer, winch output shaft, its characterized in that, be connected with the brake stopper between motor and the planetary reducer, the brake stopper includes the casing, be provided with the transmission shaft in the casing, the transmission shaft is including being used for the big end with motor output shaft connection, still including the tip that is used for being connected with planetary reducer input, be provided with a plurality of friction discs, the steel sheet that are the staggered arrangement between big end and the casing, the casing is inserted to friction disc one end, the steel sheet one end inserts the big end side, still be provided with the piston in the casing and be used for promoting the piston to press to friction disc or the butterfly spring of steel sheet, and be provided with the oil inlet that is used for supplying oil to the casing and promotes the piston to press to the butterfly spring on the casing upside.

2. The mining winch gearbox with brake of claim 1, wherein the small end is provided with external splines and the large end is provided with internal splines.

3. The mining winch gearbox with the brake according to claim 1, wherein output flanges fixedly connected with the planetary reducer shell and input flanges fixedly connected with the motor shell are respectively arranged at two ends of the shell.

4. The mining winch gearbox with brake of claim 1, wherein two seals are provided on the piston.