Dual disc self-locking relief mechanism

Abstract

The application discloses a double-dish self-locking relief mechanism, which comprises a motor shaft and a brake disc, the motor shaft is connected with the brake disc, the motor shaft is connected with a limiting assembly for limiting the brake disc and an adjustable assembly for relieving the limiting assembly, and the adjustable assembly comprises two relief pull rods, two double-dish driving rods and a driving block; the double-dish self-locking relief mechanism has the advantages that the structure is simple, the design is reasonable, the driving block is pulled by a pull rope, the driving block moves in the second direction along a guide rod, a relief return spring is compressed, the driving block pushes the two double-dish driving rods to rotate, the two double-dish washers are lifted, the two relief pull rods are pulled, an armature is pulled, the brake disc is in a movable state, the braking force is relieved, the operating element is led to the outside of the vehicle body by the manual pull rope, the braking is manually relieved, and the manual relief of the braking is facilitated and the operation is simple.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of rail transit, in particular to a double-disc self-locking 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 electrified braking execution unit no longer needs a large number of pipelines and power sources in the hydraulic or pneumatic mode. In the power-off mode or abnormal working condition, in order to meet the needs of vehicle operation, a manual relief device needs to be set to facilitate manual brake relief.

[0003] Disadvantages of the prior art:

[0004] At present, the rail transit braking system mostly adopts pneumatic or hydraulic systems, and the use of electric energy to drive the motor brake is the future development direction. The braking force needs to be considered in the power-off condition. At present, the power-off brake is performed by using a normally closed electromagnetic brake to hold the brake shaft. In the power-off braking process, manual mechanical relief needs to be considered. The product is installed at the lower part of the vehicle body, and a mature normally closed electromagnetic brake with a manual relief pull rod is selected without operation space. SUMMARY

[0005] The purpose of the present application is to provide a double-disc self-locking relief mechanism to solve the problems raised in the background art.

[0006] To achieve the above purpose, the present application provides the following technical scheme: a double-disc self-locking relief mechanism, comprising a motor shaft and a brake disc, the motor shaft being connected to the brake disc, the motor shaft being connected to a limiting assembly for limiting the brake disc and an adjustable assembly for relieving the limiting assembly, the adjustable assembly comprising:

[0007] Two relief pull rods, the two relief pull rods being installed in parallel and spaced apart in a first direction and being connected to the limiting assembly;

[0008] Two double-disc drive rods, the two double-disc drive rods being connected to the two relief pull rods through the limiting assembly;

[0009] A drive block connected to the two double-disc drive rods.

[0010] Preferably, the limiting assembly comprises:

[0011] Two double-disc washers, two said double-disc washers are installed on two said relief pull rods, two said double-disc drive rods are connected to two said double-disc washers connected to two relief pull rods, and two said double-disc drive rods are adjacent to two said double-disc washers.

[0012] An armature, said armature is connected to two said relief pull rods, said armature is connected to said brake disc and limits the braking of said brake disc.

[0013] Preferably, the driving block is connected with a guide rod, and the driving block moves in parallel on the guide rod in a second direction.

[0014] Preferably, the driving block is connected with a reset spring, and the reset spring is reset and compressed in the second direction.

[0015] Preferably, the armature is translated in a third direction through two said relief pull rods.

[0016] Preferably, the armature is connected with two electromagnets in the second direction.

[0017] Preferably, two said electromagnets are respectively provided with springs.

[0018] Preferably, two said double-disc drive rods and two said double-disc washers are connected by a bolt rotation connection.

[0019] Preferably, the first direction, the second direction and the third direction are perpendicular to each other.

[0020] Compared with the prior art, the beneficial effects of the present application are:

[0021] The double-disc self-locking relief mechanism adjusts the assembly, which includes two relief pull rods, two double-disc drive rods and a driving block, and the limiting assembly includes two double-disc washers and an armature. When manually relieving, the driving block is pulled by the pull rope, the driving block moves in the second direction along the guide rod, the relief reset spring is compressed, the driving block pushes the two double-disc drive rods to rotate, lifts the two double-disc washers, thereby pulling the two relief pull rods, the two relief pull rods pull the armature, and the brake disc is in an active state. At this time, the braking force is relieved. By manually pulling the rope to the outside of the vehicle body, manual relief is convenient, and manual relief is convenient and easy to operate. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a whole structure schematic view of a double-disc self-locking relief mechanism of the present application.

[0023] Figure 2 It is the initial position of manual relief of a double-disc self-locking relief mechanism of the present application.

[0024] Figure 3 A locking position for manual relief of the double-disc self-locking relief mechanism of the present application;

[0025] Figure 4 A double-disc self-locking mechanism of the present application;

[0026] In the figure: 110, motor shaft; 120, brake disc; 130, two relief pull rods; 131, two double-disc driving rods; 132, driving block; 140, two double-disc washers; 141, armature; 150, guide rod; 151, return spring; 160, two electromagnets; x, first direction; y, second direction; z, third direction. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0028] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying 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 a limitation on the present application.

[0029] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "setting" should be understood broadly, for example, it can be fixedly connected, set, or detachably connected, set, or integrally connected, set. For those skilled in the art, the specific meaning of the above terms in the present patent can be understood according to the specific circumstances.

[0030] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "several" is two or more, unless otherwise explicitly specified and limited. EMBODIMENT

[0031] Please refer toFigures 1-4As shown, the present application provides a double-disc self-locking relief mechanism technical scheme: including motor shaft 110 and brake disc 120, the motor shaft 110 is connected with the limiting assembly for limiting brake disc 120 and the adjustable assembly for relieving limiting assembly, adjustable assembly includes two relief pull rod 130, two double-disc drive rod 131 and drive block 132, two relief pull rod 130 parallel interval installation in the first direction x and connecting limiting assembly, two double-disc drive rod 131 is connected with two relief pull rod 130 through connecting limiting assembly, drive block 132 connects two double-disc drive rod 131, limiting assembly includes two double-disc washer 140, armature 141, two double-disc washer 140 is arranged on two relief pull rod 130 respectively, the side adjacent to two double-disc drive rod 131 and two double-disc washer 140 is provided with the helical surface for adjusting the interval between two double-disc drive rod 131 and two double-disc washer 140, armature 141 connects two relief pull rod 130, armature 141 and brake disc 120 are connected and limit brake disc 120 brake, armature 141 is connected with two electromagnets 160 in the second direction y, two electromagnets 160 are provided with spring inside, drive block 132 is connected with guide rod 150, drive block 132 is connected with reset spring 151, when two electromagnets 160 lose power, the spring inside two electromagnets 160 pushes armature 141 to brake disc 120, brake disc 120 is limited by spline fit, the rotation of motor shaft 110, applies brake force, one end of two relief pull rod 130 has flange, one end is threaded rod, two electromagnets 160 inside has through hole respectively, armature 141 has through hole, two relief pull rod 130 threaded end inserts armature 141 and two electromagnets 160, threaded end is pressed to the shell with two double-disc drive rod 131 and two double-disc washer 140 by locking nut, maintains that two double-disc drive rod 131 and two double-disc washer 140 have clearance and can rotate, two double-disc drive rod 131 and two double-disc washer 140 are contacted by helical surface, two double-disc drive rod 131 is rotated relative to two double-disc washer 140, will cause double-disc drive rod 3 and two double-disc washer 140 installation height to be larger, further pull two relief pull rod 130, two relief pull rod 130 flange end connects armature 141, two relief pull rod 130 are pulled, will pull armature 141 to the direction of movement of two electromagnets 160, the relative position of fixed plate and two electromagnets 160 is fixed, the gap between armature 141 and fixed plate is enlarged at this moment, brake disc 120 is in free state, when manually relieving, drive block 132 is pulled by using pull rope, drive block 132 is translated along guide rod 150 in the second direction y, relief reset spring 151 is compressed, drive block 132 pushes two double-disc drive rod 131 to rotate, two double-disc drive rod 131 and two double-disc washer 140 connection mode is pin rotation connection, the helical surface of two double-disc drive rod 131 slides relative to the helical surface of two double-disc washer 140, lifts two double-disc washer 140, thereby pulls two relief pull rod 130,Two relief pull rods 130 pull the armature 141, so that the brake disc 120 is in an active state, at this time, the brake force is relieved; when the function needs to be reset, two electromagnets 160 are repeatedly powered, the two electromagnets 160 attract the armature 141, compress the spring inside the two electromagnets 160, the two relief pull rods 130 will be in an unloaded state, the driving block 132 is pushed back by the relief reset spring 151, the driving block 132 drives the two double-disc driving rods 131 to reset, so that the function is reset, the device uses a manual pull rope to lead the operating element to the outside of the vehicle body, and manual relief is convenient for manual brake relief, and the operation is simple.

[0032] Further, the first direction x, the second direction y and the third direction z are perpendicular to each other.

[0033] The working principle of the present application is as follows:

[0034] In use, the double-disc self-locking relief mechanism of the embodiment is provided with an adjustable assembly, the adjustable assembly comprises two relief pull rods 130, two double-disc driving rods 131 and a driving block 132, a limiting assembly comprises two double-disc washers 140 and an armature 141, when manually relieving, the driving block 132 is pulled by a pull rope, the driving block 132 moves in translation along the guide rod 150 in the second direction y, the relief reset spring 151 is compressed, the driving block 132 pushes the two double-disc driving rods 131 to rotate, the two double-disc driving rods 131 and the two double-disc washers 140 are connected in a bolt rotary connection mode, the helical surfaces of the two double-disc driving rods 131 slide relative to the helical surfaces of the two double-disc washers 140, the two double-disc washers 140 are lifted, so that the two relief pull rods 130 are pulled, the two relief pull rods 130 pull the armature 141, so that the brake disc 120 is in an active state, at this time, the brake force is relieved; when the function needs to be reset, two electromagnets 160 are repeatedly powered, the two electromagnets 160 attract the armature 141, compress the spring inside the two electromagnets 160, the two relief pull rods 130 will be in an unloaded state, the driving block 132 is pushed back by the relief reset spring 151, the driving block 132 drives the two double-disc driving rods 131 to reset, so that the function is reset, the device uses a manual pull rope to lead the operating element to the outside of the vehicle body, and manual relief is convenient for manual brake relief, and the operation is simple.

[0035] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, the above examples and descriptions in the specification are only preferred examples of the present application, and are not intended to limit the present application, various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A dual disc self-locking relief mechanism comprising a motor shaft (110) and a brake disc (120), characterized in that: The motor shaft (110) is connected with the brake disc (120), the motor shaft (110) is connected with a limiting assembly for limiting the brake disc (120) and an adjustable assembly for relieving the limiting assembly, the adjustable assembly comprises: Two relief pull rods (130), two said relief pull rods (130) are installed in parallel and spaced apart in the first direction (x) and connected with the limiting assembly; Two double-disc drive rods (131), two said double-disc drive rods (131) are connected with two said relief pull rods (130) through the limiting assembly; A drive block (132) connected with two said double-disc drive rods (131); The limiting assembly comprises: Two double-disc washers (140), two said double-disc washers (140) are installed on two said relief pull rods (130), two said double-disc drive rods (131) are connected with two said double-disc washers (140) connected with two relief pull rods (130), and the side adjacent to two said double-disc drive rods (131) and two said double-disc washers (140) is provided with a helical surface for adjusting the spacing between two double-disc drive rods (131) and two double-disc washers (140); An armature (141) connected with two said relief pull rods (130), the armature (141) is connected with the brake disc (120) and limits the brake disc (120) braking.

2. A dual-disk self-locking mitigation mechanism according to claim 1, wherein: The drive block (132) is connected with a guide rod (150), and the drive block (132) moves in parallel in the second direction (y) on the guide rod (150).

3. A dual-disk self-locking mitigation mechanism according to claim 2, wherein: The drive block (132) is connected with a return spring (151), and the return spring (151) performs a return and compression movement in the second direction (y).

4. A dual-disk self-locking mitigation mechanism according to claim 2, wherein: The armature (141) is translated in the third direction (z) by two said relief pull rods (130).

5. A dual-disk self-locking mitigation mechanism according to claim 2, wherein: The armature (141) is connected with two electromagnets (160) in the second direction (y).

6. A dual-disk self-locking mitigation mechanism according to claim 5, wherein: Two said electromagnets (160) are respectively provided with springs.

7. A dual-disk self-locking mitigation mechanism according to claim 1, wherein: The connection mode of two said double-disc drive rods (131) and two said double-disc washers (140) is a bolt rotating connection.

8. A dual-disk self-locking mitigation mechanism according to claim 4, wherein: The first direction (x), the second direction (y) and the third direction (z) are perpendicular to each other.

Images