Hand release body press-fitting device

Abstract

The utility model relates to a hand release body press-fitting device which comprises a supporting frame, a limiting box body, a pressing head and a driving device. The pressing head and the limiting box body are arranged on the supporting frame in an up-down spaced mode, the limiting box body comprises a base body and a cover body capable of being buckled on the base body, and an inserting groove is formed in the top face of the base body and used for inserting a hand relieving body; a guide hole is formed in the cover body, a guide sleeve is arranged on the bottom surface of the cover body, and the guide sleeve can directly face the guide hole; the guide sleeve can be inserted into the mounting groove of the hand release body after the cover body covers the seat body, and a pressing rod can be inserted into the guide hole; the driving device is connected with the pressing head and can drive the pressing rod to press the elastic cylindrical pin into the mounting hole of the hand relieving body after the elastic cylindrical pin and the pressing rod of the hand relieving body are sequentially placed in the guide hole. According to the manual release body press-fitting device, the elastic cylindrical pin can be quickly press-fitted in the mounting hole of the manual release body, and the mounting efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the application field of railway locomotive vehicle foundation brake, in particular to a hand relief body press-fit device. Background Art

[0002] At present, there are about 3,500 EMUs in stock. In recent years, the output of new EMUs has been stable, and the annual growth rate of EMUs under maintenance has reached more than 20%. With the continuous development of maintenance business, the maintenance business has also been continuously expanded. At the same time, customers' requirements for the maintenance process level, quality capability, maintenance cycle, maintenance cost, and maintenance data of brake caliper units have also been continuously improved. At present, the assembly process of brake caliper units has problems such as low degree of automation, low precision, high labor intensity, and low installation efficiency.

[0003] The brake cylinder assembly includes two parts: pre-assembly and final assembly. The pre-assembly includes cylinder body, piston, clearance adjuster, connecting rod, parking cylinder, hand release, etc. The final assembly assembles the pre-assembled parts in sequence to form a brake cylinder. During pre-assembly, the elastic cylindrical pin needs to be pressed into the hand release body. Since the elastic cylindrical pin is very small and the mounting hole on the hand release body is also very small, the prior art manually aligns the mounting hole to install the elastic cylindrical pin. It is difficult to hold the elastic cylindrical pin and install it, which is inefficient. Utility Model Content

[0004] The utility model aims to provide a hand relief body press-fitting device, which can quickly press-fit an elastic cylindrical pin into a mounting hole of a hand relief body, thereby achieving higher mounting efficiency.

[0005] The purpose of the utility model is achieved in this way. A hand relief body pressing device comprises a support frame, a limit box body, a pressure head and a driving device; the pressure head and the limit box body are arranged on the support frame with an upper and lower interval, the limit box body comprises a seat body and a cover body that can be buckled on the seat body, the top surface of the seat body is provided with a slot for inserting and releasing the hand relief body; the cover body is provided with a guide hole, and a guide sleeve is provided on the bottom surface of the cover body, and the guide sleeve can be directly opposite to the guide hole; the guide sleeve can be inserted into the installation groove of the hand relief body after the cover body is closed on the seat body, and a pressure rod can be inserted in the guide hole; the driving device is connected to the pressure head, and after the elastic cylindrical pin and the pressure rod of the hand relief body are placed in the guide hole in sequence, the pressure rod is driven to press the elastic cylindrical pin into the installation hole of the hand relief body.

[0006] In a preferred embodiment of the utility model, a guide block is fixedly provided on the top surface of the cover body, and a through hole is opened on the guide block which passes through the guide block from top to bottom. The through hole is arranged opposite to the guide hole on the cover body, and the elastic cylindrical pin and the pressure rod can be inserted through the through hole in sequence.

[0007] In a preferred embodiment of the utility model, an open groove is provided on the top surface of the cover body, a through hole is provided at the bottom of the open groove, a guide block is inserted and fixed in the open groove, a through hole is provided on the guide block that passes through the guide block from top to bottom, each through hole on the guide block is connected to the through hole, and a part of the through hole constitutes a guide hole of the cover body.

[0008] In a preferred embodiment of the present invention, a movable limit adjustment rod is inserted into one side of the seat body, and the limit adjustment rod can extend into the slot and can abut against the side wall of the hand relief body.

[0009] In a preferred embodiment of the utility model, a side hole connected to the slot is opened on the side wall of the seat body, and the limit adjustment rod can be slidably inserted in the side hole; a first step is provided on the side wall of the seat body at a position corresponding to the side hole, and a second step is provided on the limit adjustment rod near its first end; an adjustment spring is sleeved on the limit adjustment rod, and the two ends of the adjustment spring respectively abut against the first step and the second step.

[0010] In a preferred embodiment of the present invention, a handle is connected to the second end of the limit adjustment rod.

[0011] In a preferred embodiment of the utility model, two positioning blocks are provided on the side wall of the seat body and are located on both sides of the side hole. The handle can be abutted against the positioning blocks to retract the first end of the limit adjustment rod into the side hole; or, the handle can be inserted into the spacing area between the two positioning blocks by rotation to move the limit adjustment rod inward.

[0012] In a preferred embodiment of the utility model, a baffle is fixedly provided on the side wall of the seat body, a limiting hole corresponding to the side hole is opened on the baffle, the aperture of the limiting hole is smaller than the aperture of the side hole, the portion of the baffle located between the limiting hole and the side hole constitutes a first step, and two positioning blocks are fixed on the baffle.

[0013] In a preferred embodiment of the present invention, one side of the cover body is hinged to one side of the base body.

[0014] In a preferred embodiment of the present invention, the driving device is a cylinder, the piston rod of the cylinder is vertically arranged and the bottom end of the piston rod is fixedly connected to the pressure head.

[0015] As described above, the hand release body press-fitting device of the utility model is applicable to the existing brake caliper unit products of railway locomotives and vehicles, and can be used to press the elastic cylindrical pin into the installation hole of the hand release body. Through the cooperation of the driving device, the pressure head, and the limit box body, the driving device drives the pressure head to press down the pressure rod, and then the pressure rod presses down the elastic cylindrical pin to press the elastic cylindrical pin, and the guide hole and guide sleeve on the cover body are used for guidance. Compared with the existing manual alignment installation, the press-fitting method of the utility model can effectively ensure that the elastic cylindrical pin is aligned with the installation hole, and the installation efficiency is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following drawings are only intended to illustrate and explain the present invention, and do not limit the scope of the present invention.

[0017] Figure 1 : A three-dimensional diagram of the hand relief body pressing device provided by the utility model.

[0018] Figure 2 : A three-dimensional diagram of the seat body in the hand relief body press-fitting device provided by the utility model.

[0019] Figure 3 :for Figure 2 Top view of the .

[0020] Figure 4 :for Figure 3 Cross-sectional view along MM.

[0021] Description of Figure Numbers:

[0022] 1. Support frame;

[0023] 2. Limiting box body; 21. Base body; 211. Slot; 212. Positioning block; 213. Baffle; 214. First step; 22. Cover body; 23. Press rod; 24. Guide block;

[0024] 3. Press head;

[0025] 4. Driving device;

[0026] 5. Limit adjustment rod; 51. Second step; 52. Handle;

[0027] 6. Hand relief body; 61. Mounting slot. DETAILED DESCRIPTION

[0028] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described with reference to the accompanying drawings.

[0029] like Figures 1 to 4As shown, this embodiment provides a hand relief body pressing device, including a support frame 1, a limit box body 2, a pressure head 3 and a driving device 4; the pressure head 3 and the limit box body 2 are arranged on the support frame 1 with an upper and lower interval, the limit box body 2 includes a seat body 21 and a cover body 22 that can be buckled on the seat body 21, and the top surface of the seat body 21 is provided with a slot 211 for inserting and releasing the hand relief body 6; a guide hole is provided on the cover body 22, and a guide sleeve is provided on the bottom surface of the cover body 22, and the guide sleeve can be directly opposite to the guide hole (the guide sleeve can be connected to the guide hole); the guide sleeve can be inserted into the installation groove 61 of the hand relief body 6 after the cover body 22 is covered on the seat body 21, and a pressure rod 23 can be inserted in the guide hole; the driving device 4 is connected to the pressure head 3, and after the elastic cylindrical pin and the pressure rod 23 of the hand relief body 6 are placed in the guide hole in sequence, the pressure rod 23 is driven to press the elastic cylindrical pin into the installation hole of the hand relief body 6.

[0030] The hand release body 6 of the brake cylinder is mainly used for manually releasing the brake cylinder (the brake cylinder mentioned in this article is an air brake), and its structure is the existing structure, which is roughly a square block, with a mounting groove 61 on the top surface, and two mounting holes are provided at the bottom of the mounting groove 61 for mounting two elastic cylindrical pins. The elastic cylindrical pin is very small, and the mounting hole on the hand release body 6 is also very small. In the prior art, the elastic cylindrical pin is installed by manually aligning the mounting hole, and it is difficult to hold the elastic cylindrical pin and install it.

[0031] In this embodiment, a hand relief body press-fitting device is used to press-fit the elastic cylindrical pin into the mounting hole of the hand relief body 6, and the press-fitting process is as follows:

[0032] Open the cover 22, insert the hand relief body 6 into the slot 211 of the seat 21; cover the cover 22, and then insert the guide sleeve into the installation slot 61 of the hand relief body 6 (generally, the bottom surface of the guide sleeve just rests on the bottom of the installation slot 61 of the hand relief body 6), and is aligned with the installation hole on the hand relief body 6. Then put the elastic cylindrical pin into the guide hole, and then put the pressure rod 23 into the guide hole, the top of the pressure rod 23 is located outside the cover 22 and the lower end of the pressure rod 23 rests on the top surface of the elastic cylindrical pin. Use the driving device 4 to drive the pressure head 3 to press the pressure rod 23 downward, so that the pressure rod 23 presses the elastic cylindrical pin downward, and the elastic cylindrical pin can be pressed into the installation hole of the hand relief body 6.

[0033] Therefore, the hand release body press-fitting device in this embodiment is suitable for existing brake caliper unit products of railway locomotives and vehicles, and can be used to press-fit the elastic cylindrical pin into the mounting hole of the hand release body 6. Through the cooperation of the driving device 4, the pressing head 3, and the limit box body 2, the driving device 4 drives the pressing head 3 to press down the pressing rod 23, and then the pressing rod 23 is used to press the elastic cylindrical pin, and the guide hole and the guide sleeve on the cover body 22 are used for guidance. Compared with the existing manual alignment installation, the press-fitting method of this embodiment can effectively ensure that the elastic cylindrical pin is aligned with the mounting hole, and the installation efficiency is higher.

[0034] It is understandable that the diameter of the elastic cylindrical pin is slightly larger than the mounting hole diameter of the hand relief body 6. After the elastic cylindrical pin and the pressure rod 23 are inserted into the guide hole, during the entire press-fitting process, only the elastic cylindrical pin is stressed, which can avoid the hand relief body 6 from being deformed by pressure.

[0035] Generally, a guide block 24 is fixed on the top surface of the cover body 22, and a through hole is provided on the guide block 24, which is arranged to penetrate upward and downward, and the through hole is arranged opposite to the guide hole on the cover body 22 (the through hole is connected to the guide hole), and the elastic cylindrical pin and the pressure rod 23 can be inserted in sequence through the through hole. The number of the through holes is the same as the number of the guide holes and the guide sleeves, and they all play a guiding role to ensure that the elastic cylindrical pin can be better aligned when installed.

[0036] Alternatively, an open groove may be provided on the top surface of the cover body 22, a through hole may be provided at the bottom of the open groove, a guide block 24 may be inserted and fixed in the open groove, a through hole may be provided on the guide block 24 which passes through the guide block 24 from top to bottom, each through hole on the guide block 24 is connected with the through hole, and a part of the through hole constitutes a guide hole of the cover body 22. Only one through hole is provided, and the number of through holes is the same as the number of guide sleeves, and the part of the through hole located below the top surface of the cover body 22 constitutes a corresponding guide hole, and the through hole also mainly plays a guiding role, so as to utilize the guide block 24 for better guidance and ensure better alignment of the elastic cylindrical pin during installation.

[0037] It is understood that the size of the slot 211 of the seat 21 should match the size of the hand relief body 6, and a small gap should be left between the two after the hand relief body 6 is inserted into the slot 211. However, since the elastic cylindrical pin is very small and the mounting hole on the hand relief body 6 is also very small, the small gap between the hand relief body 6 and the slot 211 may also affect the alignment during installation.

[0038] In order to further improve the alignment accuracy, a movable limit adjustment rod 5 is inserted into one side of the seat body 21 , and the limit adjustment rod 5 can extend into the slot 211 and can abut against the side wall of the hand relief body 6 .

[0039] During the press-fitting process, after the hand relief body 6 is inserted into the slot 211 of the seat body 21, the limit adjustment rod 5 is adjusted to move so that it rests against the side of the hand relief body 6, so that the two sides of the hand relief body 6 are limited by the side walls of the slot 211 and the limit adjustment rod 5, effectively preventing the hand relief body 6 from being pressed off during the process of the pressure rod 23 pressing down the elastic cylindrical pin, thereby further improving the accuracy of the press-fitting.

[0040] The structure of the limit adjustment rod 5 can be realized as follows: Figures 2 to 4A side hole connected to the slot 211 is opened on the side wall of the seat body 21, and the limit adjustment rod 5 can be slidably inserted in the side hole; a first step 214 is provided on the side wall of the seat body 21 at a position corresponding to the side hole, and a second step 51 is provided on the limit adjustment rod 5 near its first end. An adjustment spring is sleeved on the limit adjustment rod 5, and the two ends of the adjustment spring respectively press against the first step 214 and the second step 51.

[0041] When the limit adjustment rod 5 is pulled outward, the first end of the limit adjustment rod 5 retracts into the side hole; when the limit adjustment rod 5 is released, under the elastic force of the adjustment spring, the limit adjustment rod 5 slides inward, and its first end abuts against the side wall of the hand relief body 6.

[0042] In order to facilitate the operator to manually pull the limit adjustment rod 5 , a handle 52 is connected to the second end of the limit adjustment rod 5 .

[0043] In order to facilitate the positioning of the limit adjustment rod 5 after the limit adjustment rod 5 is pulled out, refer to Figure 2 Two positioning blocks 212 are provided on the side wall of the seat body 21, located on both sides of the side hole. The handle 52 can abut against the positioning blocks 212 to retract the first end of the limit adjustment rod 5 into the side hole; or, the handle 52 can be inserted into the interval area between the two positioning blocks 212 by rotation to move the limit adjustment rod 5 inward and then abut against the side wall of the hand relief body 6.

[0044] In this embodiment, refer to Figure 2 and Figure 4 A baffle plate 213 is fixedly provided on the side wall of the seat body 21. A limiting hole corresponding to the side hole is opened on the baffle plate 213. The aperture of the limiting hole is smaller than the aperture of the side hole. The portion of the baffle plate 213 located between the limiting hole and the side hole constitutes a first step 214. Two positioning blocks 212 are fixed on the baffle plate 213.

[0045] The handle 52 is a flat structure, the thickness of which is less than the interval between the two positioning blocks 212, and the width of which is greater than the interval between the two positioning blocks 212; when the handle 52 is placed horizontally, it abuts against the two positioning blocks 212, at which time the adjustment spring is in a compressed state, and the limit adjustment rod 5 retracts. After the hand relief body 6 is inserted into the slot 211 on the seat body 21, the handle 52 is manually rotated 90° and then released, and the handle 52 is placed vertically and can be inserted into the interval area between the two positioning blocks 212. Under the action of the adjustment spring, the limit adjustment rod 5 will automatically move inward and extend out of the side hole, and abut against and press against the hand relief body 6, ensuring that the position of the hand relief body 6 is fixed.

[0046] One side of the cover body 22 is hinged to one side of the base body 21 , and the cover body 22 can be opened in a flip-up manner, which is easy to operate.

[0047] The driving device 4 can be, for example, a cylinder, the piston rod of which is vertically arranged and the bottom end of which is fixedly connected to the pressure head 3, so as to drive the pressure head 3 to move up and down. A switch is also provided on the support frame 1, and the switch is used to control the action of the cylinder. The switch can be, for example, a hand valve, and the operator can manually operate the hand valve to control the cylinder to move up or down.

[0048] The above is only an illustrative embodiment of the utility model, and is not intended to limit the scope of the utility model. Any equivalent changes and modifications made by any technician in the field without departing from the concept and principle of the utility model should fall within the scope of protection of the utility model.

Claims

1. A hand relief body press-fit device, characterized in that: It includes a support frame, a limit box body, a pressure head and a driving device; the pressure head and the limit box body are arranged on the support frame with an upper and lower interval, the limit box body includes a seat body and a cover body that can be buckled on the seat body, and the top surface of the seat body is provided with a slot for inserting and releasing the hand relief body; A guide hole is provided on the cover body, and a guide sleeve is provided on the bottom surface of the cover body, and the guide sleeve can be directly opposite to the guide hole; the guide sleeve can be inserted into the mounting groove of the hand relief body after the cover body is closed on the base body, and a pressure rod can be inserted in the guide hole; the driving device is connected to the pressure head, and can place the elastic cylindrical pin of the hand relief body and the pressure rod in the guide hole in sequence, and then drive the pressure rod to press the elastic cylindrical pin into the mounting hole of the hand relief body.

2. The hand relief body press-fit device according to claim 1, characterized in that: A guide block is fixedly arranged on the top surface of the cover body, and a through hole is opened on the guide block which penetrates up and down. The through hole is arranged opposite to the guide hole on the cover body, and the elastic cylindrical pin and the pressure rod can be inserted into the through hole in sequence.

3. The hand relief body press-fit device according to claim 1, characterized in that: An open groove is provided on the top surface of the cover body, a through hole is provided at the bottom of the open groove, a guide block is inserted and fixed in the open groove, a through hole is provided on the guide block which passes through the guide block from top to bottom, each of the through holes on the guide block is connected to the through hole, and a part of the through hole constitutes the guide hole of the cover body.

4. The hand relief body press-fit device according to claim 1, characterized in that: A movable limit adjustment rod is inserted on one side of the seat body, and the limit adjustment rod can extend into the slot and abut against the side wall of the hand relief body.

5. The hand relief body press-fit device according to claim 4, characterized in that: A side hole connected to the slot is opened on the side wall of the seat body, and the limit adjustment rod can be slidably inserted in the side hole; a first step is provided on the side wall of the seat body at a position corresponding to the side hole, and a second step is provided on the limit adjustment rod near its first end, and an adjustment spring is sleeved on the limit adjustment rod, and the two ends of the adjustment spring respectively press against the first step and the second step.

6. The hand relief body press-fit device according to claim 5, characterized in that: A handle is connected to the second end of the limit adjustment rod.

7. The hand relief body press-fit device according to claim 6, characterized in that: Two positioning blocks are provided on the side wall of the seat body and are located on both sides of the side hole. The handle can be abutted against the positioning blocks to retract the first end of the limit adjustment rod into the side hole; or, the handle can be inserted into the spacing area between the two positioning blocks by rotation to move the limit adjustment rod inward.

8. The hand relief body press-fit device according to claim 7, characterized in that: A baffle is fixedly provided on the side wall of the seat body, and a limiting hole corresponding to the side hole is opened on the baffle. The aperture of the limiting hole is smaller than the aperture of the side hole. The portion of the baffle located between the limiting hole and the side hole constitutes the first step, and the two positioning blocks are fixed on the baffle.

9. The hand relief body press-fit device according to claim 1, characterized in that: One side of the cover body is hinged to one side of the base body.

10. The hand relief body press-fit device according to claim 1, characterized in that: The driving device is a cylinder, the piston rod of the cylinder is vertically arranged and the bottom end of the piston rod is fixedly connected to the pressure head.

Images