Electromechanical brake with manual relief mechanism

Abstract

The application discloses an electromechanical brake with a manual relief mechanism, which comprises a main body shell and a moving shell, a fixed clamp mounting seat is arranged on the surface of the main body shell, an adjusting assembly, a brake assembly and a driving assembly are sequentially arranged in the main body shell, the main body shell and the moving shell are connected through the driving assembly, and a moving clamp mounting seat is arranged on the moving shell; through the arrangement of double-disc driving rods and double-disc gaskets, helical surfaces A and B for adjusting the interval are arranged on the adjacent surfaces of the double-disc driving rods and the double-disc gaskets, the driving block is pulled by stretching, the driving block moves along the guide rod to compress the return spring and simultaneously pushes the two double-disc driving rods to rotate, the helical surfaces A and B rotate to increase the rotating interval, thereby pulling two relief pull rods, driving the armature to make the brake disc in a movable state, reducing the braking force of the brake disc on the hollow shaft, and thus relieving the brake force of the locking type electric clamp.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of rail transit, in particular to an electromechanical brake with a manual relief mechanism. BACKGROUND

[0002] With the innovation of industrial control technology and the continuous improvement of overall performance requirements of rail transit, the requirement for electrification of the braking execution unit of the rail vehicle is continuously improved, and intelligentization, networking and light weight have become the development trend. The braking execution unit no longer needs a large number of pipelines and power sources in the hydraulic or pneumatic mode. In order to meet the needs of vehicle operation, a manual relief device needs to be set in the power-off mode or abnormal working condition to facilitate manual brake relief.

[0003] Disadvantages of the prior art:

[0004] At present, the rail transit braking system mostly adopts a pneumatic or hydraulic system, and the use of electric energy to drive a motor brake is the future development direction. The braking force needs to be considered in the power-off condition. At present, the power-off holding brake shaft is used to brake in the power-off braking process, and manual mechanical relief needs to be considered. The product is installed at the lower part of the vehicle body, and the mature normally closed electromagnetic brake with a manual relief pull rod has no operation space. SUMMARY

[0005] The purpose of the present application is to provide an electromechanical brake with a manual relief mechanism to solve the problems raised in the background.

[0006] To achieve the above purpose, the present application provides the following technical scheme: an electromechanical brake with a manual relief mechanism, comprising a main body shell and a moving shell, a fixed clamp mounting seat is arranged on the surface of the main body shell, an adjusting assembly, a braking assembly and a driving assembly are sequentially arranged in the main body shell, the main body shell and the moving shell are connected through the driving assembly, and a moving clamp mounting seat is arranged on the moving shell.

[0007] The adjusting assembly comprises:

[0008] An adjusting base is composed of two fixed blocks and two guide rods and is fixed on the inner wall of the main body shell by screws, two guide rails are arranged in the middle of the two fixed blocks, a driving block is arranged on the two guide rails, and a connecting track is formed in the driving block;

[0009] Two double-disc driving rods are provided with a cylindrical slider at one end and a helical surface A for adjusting the spacing at the other end, the cylindrical slider is placed in the connecting track, and the two double-disc driving rods are connected to the driving block through the cylindrical slider;

[0010] Two relief pull rods, one end of two double-disc drive rods provided with a spiral surface A is connected with one end of two relief pull rods, two double-disc washers are arranged between two relief pull rods and two double-disc drive rods, and a spiral surface B is arranged on the side of two double-disc washers facing the spiral surface A.

[0011] As a further improvement of the application, the driving assembly comprises:

[0012] A stator is fixed on the inner wall of the main body shell.

[0013] A rotor is arranged in the stator, a hollow shaft is arranged in the rotor, the hollow shaft is fixedly connected with the rotor through a screw, and a brake groove is arranged at one end of the hollow shaft.

[0014] A ball nut is fixed in the hollow shaft, and a ball screw is arranged on the inner side of the ball nut.

[0015] As a further improvement of the application, the braking assembly comprises:

[0016] An electromagnetic brake is sleeved outside the two relief pull rods.

[0017] An armature is a circular ring type sleeve arranged on the two relief pull rods.

[0018] A brake disc is arranged outside the driving assembly, and the inner side of the brake disc is connected with the brake groove on the hollow shaft.

[0019] As a further improvement of the application, two groups of supporting roller sets are arranged at both ends of the hollow shaft, and the two groups of supporting roller sets limit the hollow shaft in the main body shell to keep stable.

[0020] As a further improvement of the application, the two relief pull rods are vertically installed with the two double-disc drive rods, and the two relief pull rods are installed in parallel and spaced apart.

[0021] As a further improvement of the application, a relief pull rope opening is formed on one side of the main body shell, a relief pull rope channel is formed on the fixed block, a relief pull rope groove is arranged at the bottom of the driving block, and the relief pull rope opening, the relief pull rope channel and the relief pull rope groove are in the same straight line direction.

[0022] As a further improvement of the application, push plates are arranged on both sides of the driving block, the push plates are respectively sleeved on two guide rods, and return springs are arranged on the two guide rods.

[0023] As a further improvement of the application, a rebound spring is arranged in the electromagnetic brake.

[0024] As a further improvement of the present application, the two double-disc driving rods and the two double-disc gaskets are connected by a bolted rotary connection.

[0025] As a further improvement of the present application, a layer of rubber gasket is arranged on both sides of the brake disc.

[0026] Compared with the prior art, the present application has the following beneficial effects:

[0027] 1. By arranging the double-disc driving rods and the double-disc gaskets, and arranging the screw surfaces A and B for adjusting the spacing on the adjacent surfaces of the double-disc driving rods and the double-disc gaskets, the driving block is pulled by stretching, the driving block moves along the guide rod to compress the return spring while pushing the two double-disc driving rods to rotate, the screw surfaces A and B rotate to increase the spacing, thereby pulling the two relief pull rods, driving the armature to make the brake disc active, reducing the braking force of the brake disc on the hollow shaft, and thus relieving the braking force of the locking type electric clamp.

[0028] 2. By arranging the driving assembly, the stator is fixed in the main body shell, the rotor and the hollow shaft are fixed together, the rotor rotates forward to drive the hollow shaft to rotate, the ball nut is pushed out, the clamp is braked, the motor is blocked to maintain the braking force value, the rotor rotates reversely, the ball nut drives the ball screw to reset, and the clamp braking force is relieved at this time.

[0029] 3. By arranging the brake assembly, after the electric clamp applies the brake, the electromagnetic brake is controlled to lose power, the rebound spring is released, the armature is pushed to press against the brake disc, the brake disc is clamped and braked, the brake disc is locked by the spline cooperation to rotate the hollow shaft, the braking force value is maintained, and the parking brake is applied; after the electromagnetic brake is powered on, the electromagnetic brake attracts the armature, the rebound spring is compressed, the brake disc returns to the free rotating state, and the parking braking force is relieved. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall appearance of the present application;

[0031] Figure 2 It is a schematic diagram of the top view of the present application;

[0032] Figure 3 It is a schematic diagram of the overall cross-sectional view of the present application;

[0033] Figure 4 It is a schematic diagram of the side view of the present application;

[0034] Figure 5 It is a schematic diagram of the adjusting assembly of the present application;

[0035] Figure 6 It is a schematic diagram of the double-disc driving rod and the double-disc gasket of the present application;

[0036] Figure 7 Figure of the double-disc driving rod and double-disc gasket matching of the present application.

[0037] In the figure: 1, main body shell; 101, relief pull rope port; 2, moving shell; 3, fixed clamp mounting seat; 4, adjusting assembly; 401, adjusting base; 402, fixed block; 4021, relief pull rope channel; 403, guide rod; 4031, reset spring; 404, guide rail; 405, driving block; 4051, relief pull rod groove; 4052, push plate; 406, connecting rail; 407, double-disc driving rod; 408, cylindrical slider; 409, helical surface A; 410, relief pull rod; 411, double-disc gasket; 412, helical surface B; 5, brake assembly; 501, electromagnetic brake; 502, armature; 503, brake disc; 504, rebound spring; 505, rubber gasket; 6, driving assembly; 601, stator; 602, rotor; 603, hollow shaft; 604, brake groove; 605, ball nut; 606, ball screw; 607, supporting roller group; 7, moving clamp mounting seat. DETAILED DESCRIPTION

[0038] In order to make the technical problems to be solved by the present application, technical solutions and beneficial effects more clearly, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application.

[0039] It should be noted that when an element is referred to as being "fixed", "mounted", "connected" or "set" with another element, it can be directly on the other element or indirectly on the other element. It should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0040] As a further improvement of the present application, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. EMBODIMENT

[0041] Please refer to Figures 1-7The application provides a technical scheme: an electromechanical brake with a manual relief mechanism, which comprises a main body shell 1 and a moving shell 2, the surface of the main body shell 1 is provided with a fixed clamp mounting seat 3, the main body shell 1 is internally provided with an adjusting assembly 4, a braking assembly 5 and a driving assembly 6, the main body shell 1 and the moving shell 2 are connected through the driving assembly 6, and the moving shell 2 is provided with a moving clamp mounting seat 7; the adjusting assembly 4 comprises an adjusting base 401, two double-disc driving rods 407 and two relief pull rods 410, the adjusting base 401 is composed of two fixed blocks 402 and two guide rods 403 and is fixed on the inner wall of the main body shell 1 through screws, two guide rails 404 are mounted in the middle of the two fixed blocks 402, a driving block 405 is placed on the two guide rails 404, and a connecting rail 406 is formed in the driving block 405; one end of each of the two double-disc driving rods 407 is a cylindrical sliding block 408, and the other end is a helical surface A 409 used for adjusting the spacing, the cylindrical sliding block 408 is placed in the connecting rail 406, and the two double-disc driving rods 407 are connected to the driving block 405 through the cylindrical sliding block 408; one end of each of the two relief pull rods 410 is connected to one end of the two double-disc driving rods 407 provided with the helical surface A 409, two double-disc washers 411 are arranged between the two relief pull rods 410 and the two double-disc driving rods 407, and one side of the two double-disc washers 411, which faces the helical surface A 409, is a helical surface B 412.

[0042] The two relief pull rods 410 are vertically installed on the two double-disc driving rods 407, and the two relief pull rods 410 are installed in parallel and at intervals.

[0043] A relief pull rope opening 101 is formed in one side of the main body shell 1, a relief pull rope channel 4021 is formed in the fixed block 402, a relief pull rope groove 4051 is formed in the bottom of the driving block 405, and the relief pull rope opening 101, the relief pull rope channel 4021 and the relief pull rope groove 4051 are in the same straight line direction.

[0044] Push plates 4052 protrude from the two sides of the driving block 405, the push plates 4052 are respectively sleeved on the two guide rods 403, and reset springs 4031 are sleeved on the two guide rods 403.

[0045] The two double-disc driving rods 407 and the two double-disc washers 411 are connected in a bolt rotating connection mode.

[0046] The braking assembly 5 comprises an electromagnetic brake 501, an armature 502 and a brake disc 503, the electromagnetic brake 501 is sleeved outside the two relief pull rods 410; the armature 502 is a circular ring type and is sleeved on the two relief pull rods 410; the brake disc 503 is outside the driving assembly 6, and the inner side of the brake disc 503 is connected with a brake groove 604 on the hollow shaft 603.

[0047] A rebound spring 504 is internally arranged in the electromagnetic brake 501.

[0048] The brake disc 503 is attached with a rubber washer 505 on both sides.

[0049] The manual release parking brake force is pulled through the release pull rope port 101, the release pull rope channel 4021 is fixed in the release pull rope groove 4051, the driving block 405 is driven to move along the guide rod 403 to compress the reset spring 4031, at the same time, the cylindrical slider 408 is driven to slide inward to pull the two double-disc driving rods 407 to rotate, the double-disc driving rod 407 and the double-disc washer 411 are relatively rotated and slid, the helical surface A 409 and the helical surface B 412 are relatively rotated to increase the rotating interval, thereby pulling the two release pull rods 410, the release pull rod 410 moves forward to drive the armature 502 to move forward, the brake disc 503 is in an active state, the electric clamp connected with the hollow shaft is divided into a driving end and a clamping end, connected by a connecting shaft, the brake disc reduces the braking force on the hollow shaft, the driving end of the electric clamp is in a movable state, and the opposite clamping end is in a relaxed state, so that the locking electric clamp brake force is released; the pull rope is released, the rebound force of the reset spring 4031 is released, the driving block 405 is pushed to move reversely along the guide rod 403, the two double-disc driving rods 407 are rotated, the double-disc driving rod 407 and the double-disc washer 411 are reset, the helical surface A 409 and the helical surface B 412 are relatively rotated to reduce the rotating interval, the two release pull rods 410 are reset, the armature 502 is pushed to compress the brake disc 503, and the locking electric clamp restores the work to apply the braking force.

[0050] The driving assembly 6 comprises a stator 601, a rotor 602 and a ball nut 605, the stator 601 is fixed on the inner wall of the main body shell 1, the rotor 602 is installed in the stator 601, the hollow shaft 603 is fixed in the rotor 602, the hollow shaft 603 is fixedly connected with the rotor 602 through a screw, and the hollow shaft 603 is provided with a brake groove 604 at one end; the ball nut 605 is fixed in the hollow shaft 603, and the ball nut 605 is provided with a ball screw 606 on the inner side.

[0051] The two groups of supporting roller sets 607 are arranged at both ends of the hollow shaft 603, and the two groups of supporting roller sets 607 limit the hollow shaft 603 in the main body shell 1 to keep stable.

[0052] The stator 601 is fixed in the main body shell 1, the rotor 602 and the hollow shaft 603 are fixed together, the rotor 602 rotates forward, drives the hollow shaft 603 to rotate the ball nut 605, pushes out the ball screw 606, the electric clamp driving end extends outward, the opposite clamping end clamps, the clamp brake, the motor blockage keeps the brake force value; the rotor 602 rotates reversely, the hollow shaft 603 drives the ball nut 605 to rotate reversely, drives the ball screw 606 to reset, the electric clamp driving end shrinks inward, the opposite clamping end relaxes, the clamp brake force is relieved at this time; the motor rotor 602 in the reverse rotation relief reset process, the relief gap can be accurately controlled by the number of rotations of the rotor 602, the relief gap software is adjustable, the motor rotor 602 is reversely rotated to the limit position, at this time the electric clamp is in the limit relaxation state, the relief gap value between the brake disc 502 and the brake disc 502 is the limit position given by the brake, the relief gap value is limited, which is convenient for brake disc replacement.

[0053] After the electric clamp applies the brake, the electromagnetic brake 501 is controlled to lose power, the rebound spring 504 is released, the armature 502 is pushed to press the brake disc 503, the brake disc 503 is clamped and braked, the brake disc 503 is locked in rotation with the hollow shaft 603 through the spline fit, the brake force value is kept, and the parking brake is applied; after the electromagnetic brake 501 is powered, the electromagnetic brake 501 attracts the armature 502, the rebound spring 504 is compressed, the brake disc 502 restores the free rotation state, and the parking brake force is relieved.

[0054] It should be noted that in this text, relational terms such as first and second and the like are used merely to distinguish one entity or action from another, without necessarily requiring or implying that there is any such actual relationship or order between these entities or actions. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0055] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An electromechanical brake with a manual release mechanism, comprising a main housing (1) and a moving housing (2), characterized in that: The main body shell (1) is provided with a fixed clamp mounting seat (3), the main body shell (1) is sequentially provided with an adjusting assembly (4), a brake assembly (5) and a driving assembly (6), the main body shell (1) and the movable shell (2) are connected through the driving assembly (6), and the movable shell (2) is provided with a movable clamp mounting seat (7); The adjusting assembly (4) comprises: An adjusting base (401) is composed of two fixed blocks (402) and two guide rods (403) and is fixed on the inner wall of the main body shell (1) by screws, two guide rails (404) are arranged in the middle of the two fixed blocks (402), a driving block (405) is arranged on the two guide rails (404), and a connecting rail (406) is formed in the driving block (405); Two double-disc driving rods (407) are provided with a cylindrical slide block (408) at one end and a helical surface A (409) for adjusting the spacing at the other end, the cylindrical slide block (408) is arranged in the connecting rail (406), and the two double-disc driving rods (407) are connected to the driving block (405) through the cylindrical slide block (408); Two relief pull rods (410) are connected to one end of the two double-disc driving rods (407) provided with the helical surface A (409), and two double-disc washers (411) are arranged between the two relief pull rods (410) and the two double-disc driving rods (407), and the two double-disc washers (411) are provided with a helical surface B (412) on the side facing the helical surface A (409). The brake assembly (5) comprises: An electromagnetic brake (501) is arranged outside the two relief pull rods (410); An armature (502) is a circular ring type and is arranged outside the two relief pull rods (410); A brake disc (503) is arranged outside the driving assembly (6), and the inner side of the brake disc (503) is connected with a brake groove (604) on the hollow shaft (603).

2. An electromechanical brake with a manual release mechanism according to claim 1, characterized in that: The driving assembly (6) comprises: A stator (601) is fixed on the inner wall of the main body shell (1); A rotor (602) is arranged in the stator (601), a hollow shaft (603) is arranged in the rotor (602), the hollow shaft (603) is fixedly connected with the rotor (602) through screws, and one end of the hollow shaft (603) is provided with a brake groove (604); A ball nut (605) is fixed in the hollow shaft (603), and a ball screw (606) is arranged on the inner side of the ball nut (605).

3. An electromechanical brake with a manual release mechanism according to claim 2, characterized in that: Two groups of supporting roller groups (607) are arranged at both ends of the hollow shaft (603), and the two groups of supporting roller groups (607) limit the hollow shaft (603) in the main body shell (1) to keep stable.

4. An electromechanical brake with a manual release mechanism according to claim 1, characterized in that: Two said relief pull rods (410) are vertically installed with two double-disc drive rods (407), and two said relief pull rods (410) are installed in parallel and spaced apart.

5. An electromechanical brake with a manual release mechanism according to claim 1, characterized in that: The main body shell (1) is provided with a relief pull rope opening (101) on one side, the fixing block (402) is provided with a relief pull rope channel (4021), the driving block (405) is provided with a relief pull rope groove (4051) at the bottom, and the relief pull rope opening (101), the relief pull rope channel (4021) and the relief pull rope groove (4051) are in the same straight line direction.

6. An electromechanical brake with a manual release mechanism according to claim 1, characterized in that: The driving block (405) is provided with a push plate (4052) on both sides, the push plate (4052) is sleeved on the two guide rods (403) respectively, and the two guide rods (403) are provided with a reset spring (4031).

7. An electromechanical brake with a manual release mechanism according to claim 1, characterized in that: The electromagnetic brake (501) is provided with a rebound spring (504) inside.

8. An electromechanical brake with a manual release mechanism according to claim 1, characterized in that: The connection mode of the two double-disc drive rods (407) and the two double-disc washers (411) is bolted rotary connection.

9. An electromechanical brake with a manual release mechanism according to claim 1, characterized in that: The brake disc (503) is provided with a layer of rubber washer (505) on both sides.

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