CN209852286U

CN209852286U - Electromechanical brake cylinder

Info

Publication number: CN209852286U
Application number: CN201822030281.1U
Authority: CN
Inventors: 吴萌岭; 陈茂林; 田春; 冯夫磊; 朱克举
Original assignee: Shanghai Six Onychogalea Electromechanical Technology Co Ltd
Current assignee: Beijing Tianyou Xinlan High Tech Co., Ltd
Priority date: 2018-12-05
Filing date: 2018-12-05
Publication date: 2019-12-27
Anticipated expiration: 2028-12-05

Abstract

The utility model relates to a rail vehicle braking equipment technical field is an electromechanical brake jar particularly, the connecting piece links to each other with the nut is fixed, the nut inboard with ball screw thread fit, ball keeps away from the one end of nut and links to each other with the integral key shaft is fixed, the ball outside still overlaps and is equipped with electric motor rotor, integral key shaft outside cover is equipped with the resolver rotor, correspondingly fixed be equipped with electric motor stator matched with motor rotor on the casing and with resolver rotor matched with resolver stator, integral key shaft outside cover is equipped with the biography power board, the biography power board rear end is connected with the electric brake that loses, and the inner circle cover of electric brake that loses establishes in the outside of integral key shaft. Compared with the prior art, the utility model, its advantage lies in: the utility model discloses compact structure can directly replace the air brake jar in the former air brake system, and response speed is fast, control accuracy is high, noiselessness, light in weight, the problem of no gas leakage oil leak, and the structure can adapt to complicated electromagnetic environment.

Description

Electromechanical brake cylinder

Technical Field

The utility model relates to a rail vehicle braking equipment technical field is an electromechanical brake jar particularly.

Background

The rail transit braking field, friction braking is as a safe braking mode, is the indispensable braking mode in the vehicle, and traditional friction braking mode has air brake and hydraulic braking, but these two kinds of braking system's constitution is complicated, and the system response is slow, and control accuracy is low, bulky, weight is heavy, can produce noise pollution, has the problem of gas leakage and oil leak.

Disclosure of Invention

An object of the utility model is to solve prior art not enough, provide an electromechanical brake jar, control accuracy is high, and does not have gas leakage oil leak problem.

In order to realize above-mentioned purpose, design an electromechanical brake jar, electromechanical brake jar include connecting piece, nut, ball, integral key shaft and casing, the connecting piece link to each other with the nut is fixed, the nut inboard with ball screw thread fit, ball keep away from the one end of nut and the integral key shaft is fixed continuous, the ball outside still the cover be equipped with electric motor rotor, the integral key shaft outside cover be equipped with the resolver rotor, the casing on correspondingly fixed be equipped with electric motor stator matched with electric motor rotor and with resolver rotor matched with resolver stator, integral key shaft outside cover be equipped with the biography power board that is used for accepting the axial force, the biography power board rear end is connected with the electric brake that loses, and loses the outside at the integral key shaft of electric brake's inner circle cover and establish.

The utility model discloses still have following preferred technical scheme:

the outside cover that keeps away from connecting piece one end of nut be equipped with the direction shell, the casing around both sides all be equipped with the opening, the opening part detachably of one side links to each other with the direction shell, the opening part detachable of opposite side is connected with the apron.

The guide shell on install the dirt proof boot, the one end cover of dirt proof boot is located the guide shell outside, the connecting piece outside is located to the other end cover.

One end of the spline shaft is provided with a groove for being connected with the end part of the ball screw in a matching way.

The integral key shaft outside cover that is close to ball one end is equipped with the spline housing, corresponding first breach and the second breach of being equipped with in motor rotor and the spline housing outside, first breach and second breach cooperate and constitute first recess, the casing inboard be equipped with the extension section, extension section one end detachable is connected with the bearing clamp plate, the bearing clamp plate with extend the section on be equipped with third breach and fourth breach correspondingly, third breach and fourth breach cooperate and constitute and correspond to the second recess of first recess, first recess and second recess between be connected with roller bearing.

The outer wall of the spline shaft is provided with a first step structure used for limiting the spline sleeve.

The outer wall of the spline shaft is provided with a second step structure, two self-lubricating plates are clamped between the second step structure and the thrust plate, and a flat thrust bearing is clamped between the two self-lubricating plates.

The shell and the connecting piece are respectively provided with a mounting hole for connecting with an external device.

And wear-resistant sleeves are arranged in the mounting holes of the connecting piece and the shell.

Compared with the prior art, the utility model, composite structure is simple feasible, easily installs and dismantles, and its advantage lies in: the utility model discloses compact structure can directly replace the air brake jar in the former air brake system, and response speed is fast, control accuracy is high, noiselessness, light in weight, the problem of no gas leakage oil leak, and the structure can adapt to complicated electromagnetic environment.

Drawings

Fig. 1 is a schematic structural view of an electromechanical brake cylinder according to an embodiment of the present invention.

Fig. 2 is a cross-sectional view of an electromechanical brake cylinder according to an embodiment of the present invention.

In the figure: 1. the connecting piece 2, the dust-proof sleeve 3, the guide shell 4, the motor stator 5, the motor rotor 6, the front end cover 7, the second groove 8, the thrust plate 9, the shell 10, the wrench hole 11, the cover plate 12, the resolver stator 13, the extension section 14 arranged inward of the shell, the resolver rotor 15, the flat thrust bearing 16, the crossed roller bearing 17, the spline shaft 18, the power-off brake 19, the self-lubricating plate 20, the first groove 21, the spline sleeve 22, the ball screw 23, the nut 24, the screw 25, the socket 26, the hose clamp 27 and the cable sheath.

Detailed Description

The structure and principle of such a device will be apparent to those skilled in the art from the following further description of the invention with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 and 2, the connecting member includes a straight section and a horizontal section disposed at both ends of the straight section toward the same side of the straight section, and the horizontal section is provided with a mounting hole for connecting with an external device. The straight section is provided with a spacing section protruding in the circumferential direction in the middle part towards one side direction provided with the transverse section, the inner side of the spacing section is used for connecting one end of a nut, and the inner side of the spacing section is also provided with a threaded hole in the circumferential direction. The nut be hollow cylinder section, and the both ends of cylinder section are equipped with the circumference and extend the section, the circumference that is close to connecting piece one end extends the section and is equipped with the screw hole for link to each other with the connecting piece through the screw. And a groove is also arranged at the connecting section of the connecting piece and the nut, and an O-shaped ring is arranged in the groove. The interior of the nut is matched with the ball screw to form a ball nut-screw pair. The nut outside cover be equipped with both ends open-ended direction shell, the opening that the direction shell is close to connecting piece one end has the front end housing through bolted connection in order to realize sealing. The middle part of the guide shell is outwards provided with an extension section in the circumferential direction, and the outer end of the extension section is provided with threads for being connected with the shell through thread fit and pressing the motor stator arranged outside the ball screw. The extension section that is equipped with to the outside in circumference is close to the one end that connecting piece one side is connected with the dirt proof boot in direction shell middle part, and the other end of dirt proof boot is connected in the outside of the spacing section of connecting piece, and the both ends of dirt proof boot are fixed through the larynx hoop.

The outer end of ball link to each other with the integral key shaft, the one end of integral key shaft be equipped with the recess, ball's outer end can pass through key cooperation and connect in the recess, just ball's outer end tip be equipped with the screw hole, the other end of integral key shaft also be equipped with the recess to further consolidate through the screw and be connected between the ball.

The spline shaft is characterized in that a spline sleeve is sleeved on the outer side, close to one end of the ball screw, of the spline shaft, and a first step structure is arranged on the outer wall of the ball screw and used for limiting the spline sleeve. The ball outside still the cover be equipped with electric motor rotor, electric motor rotor with the spline housing adjacent, electric motor rotor include with the cover establish the linkage segment in the ball outside, and by the linkage segment to the axial outside extend the back with motor stator matched with cooperation section, electric motor rotor's linkage segment outside and spline housing outside corresponding be equipped with first breach and second breach, first breach and second breach cooperate and constitute first recess, the casing inboard be equipped with the extension section, extension section one end detachable is connected with the bearing clamp plate, the corresponding third breach and fourth breach that is equipped with on bearing clamp plate and the extension section, third breach and fourth breach cooperate and constitute corresponding to the second recess of the position of first recess, first recess and second recess between be connected with cross roller bearing.

The outside cover of integral key shaft be equipped with the biography power board, be equipped with the bearing between biography power board and the integral key shaft, just the integral key shaft outer wall on be equipped with the second stair structure, the centre gripping has two self-lubrication boards between second stair structure and the thrust plate, the centre gripping has a thrust bearing between two self-lubrication boards. The thrust plate is fixedly connected with a power-off brake sleeved at the end part of the outer end of the spline shaft through screw connection, namely, an outer ring of the power-off brake is fixed on the force transmission plate through screws, an inner ring of the power-off brake is installed on the spline shaft through keys, and a retaining ring is installed at the end part of the spline shaft.

The outer side of the spline shaft is also provided with a rotary transformer rotor, and the shell is correspondingly and fixedly provided with a motor rotor matched with the motor stator and a rotary transformer stator matched with the rotary transformer rotor. The shell and the force transmission plate are connected in a sliding and non-rotating mode. The rear end of the shell is detachably connected with a cover plate through threads, a wrench hole is drilled in the surface of the cover plate, and a rubber plug is plugged in the wrench hole. And the shell is also provided with a socket for supplying power to the rotary transformer and the motor power-off brake. The shell is also provided with a mounting hole for connecting with an external device.

In a preferred embodiment, the electric motor is a direct current torque motor.

In a preferred embodiment, wear sleeves are mounted in the mounting holes of the connecting member and the housing.

In a preferred embodiment, the dust cover is made of rubber or synthetic material.

In a preferred embodiment, threading holes are formed in the force transmission plate and the shell, and cable sheaths are arranged in the threading holes.

During operation, the motor stator is electrified, so that the motor rotor rotates to drive the spline sleeve, the spline shaft and the ball screw to rotate, the ball screw nut pair converts rotation into translation, and therefore extension and retraction of the brake cylinder are achieved.

The brake cylinder is extended, and the reaction force of the pushing force of the brake cylinder is transmitted to the force transmission plate through the connecting piece, the nut, the ball screw, the spline shaft and the plane thrust bearing.

When the electronic power is cut off, the power-off brake is also cut off at the same time, so that the transmission shaft is forced to stop rotating quickly.

The brake cylinder of the embodiment has the advantages of compact structure, light weight, good protection and high braking efficiency, and the built-in structure can adapt to complex electromagnetic environment.

Claims

1. The utility model provides an electromechanical brake jar, its characterized in that electromechanical brake jar include connecting piece, nut, ball, integral key shaft and casing, the connecting piece link to each other with the nut is fixed, the nut inboard with ball screw thread fit, ball keep away from the one end of nut and link to each other with the integral key shaft is fixed, the ball outside still the cover be equipped with electric motor rotor, the integral key shaft outside cover be equipped with the resolver rotor, the casing on correspondingly fixed be equipped with motor stator matched with electric motor rotor and with resolver rotor matched with resolver stator, integral key shaft outside cover be equipped with the biography power board that is used for accepting axial force, the biography power board rear end is connected with the power-off brake, and the outside at the integral key shaft is established to the inner circle cover of power-off brake.

2. Electromechanical brake cylinder according to claim 1, characterized in that the nut is provided with a guiding shell on the outside facing away from the connecting piece, the shell being provided with openings on both the front and rear sides, the opening on one side being detachably connected to the guiding shell and the opening on the other side being detachably connected to a cover plate.

3. The electromechanical brake cylinder according to claim 2, wherein the guide shell is provided with a dust-proof sleeve, one end of the dust-proof sleeve is sleeved outside the guide shell, and the other end of the dust-proof sleeve is sleeved outside the connecting piece.

4. Electromechanical brake cylinder according to claim 1, characterized in that one end of the spline shaft is provided with a groove for a mating connection with the end of a ball screw.

5. The electromechanical brake cylinder according to claim 1, wherein a spline housing is sleeved on an outer side of one end of the spline shaft, which is close to the ball screw, a first notch and a second notch are respectively formed on an outer side of the motor rotor and an outer side of the spline housing, the first notch and the second notch are matched to form a first groove, the housing is provided with an extension section on an inner side, one end of the extension section is detachably connected with a bearing pressing plate, a third notch and a fourth notch are respectively formed on the bearing pressing plate and the extension section, the third notch and the fourth notch are matched to form a second groove corresponding to the first groove, and a roller bearing is connected between the first groove and the second groove.

6. Electromechanical brake cylinder according to claim 1, characterized in that the outer wall of the spline shaft is provided with a first step structure for limiting the spline housing.

7. Electromechanical brake cylinder according to claim 1, characterized in that the outer wall of the spline shaft is provided with a second step structure, two self-lubricating plates are clamped between the second step structure and the thrust plate, and a plain thrust bearing is clamped between the two self-lubricating plates.

8. Electromechanical brake cylinder according to claim 1, characterized in that the housing and the connecting piece are provided with mounting holes for connection to external devices, respectively.

9. Electromechanical brake cylinder according to claim 8, characterized in that a wear sleeve is mounted in the mounting hole of the coupling and the housing.