Axle box rotating arm node press fitting clamp

Abstract

The utility model discloses an axle box rotating arm node press fitting clamp which comprises a bottom plate, a first positioning structure and a second positioning structure. The two positioning guide columns are mounted on the bottom plate; the node press-fitting clamp further comprises a gland assembly connected to the two positioning guide columns in a sliding mode. The positioning guide columns are detachably assembled and fixed to the bottom plate through bolts, and the two ends of the gland assembly are in sliding connection with the corresponding positioning guide columns respectively. A gland is arranged in the middle of the gland assembly, and a containing cavity for containing a press-fitting piece is formed in the gland. After the two ends of the axle box rotating arm are located through the first locating structure and the second locating structure respectively, the press-fitting piece is pressed to the corresponding position of the axle box rotating arm through the gland. According to the press-fitting clamp, a traditional sliding way structure is replaced by the positioning guide column, the positioning guide column is connected with the bottom plate through the bolt, the positioning guide column can be replaced with a new product conveniently after being abraded, and meanwhile the gland assembly and the positioning guide column are connected through the brass sleeve, and the gland assembly can be replaced rapidly after being abraded.

Description

Technical Field

[0001] This utility model relates to the field of rail vehicle assembly technology, and in particular to a press-fit fixture for axle box rotating arm node of a rail vehicle. Background Technology

[0002] In the existing technology, the pressing of the axle box swing arm node is guided and limited by the slide rail. The gap between the mating parts is less than 0.3mm. With long-term use, the slide rail will wear down, resulting in a reduction in the limiting and guiding ability, causing jamming during the pressing of the axle box swing arm node, or even scrapping of parts.

[0003] Repairing wear and tear through machining can reduce jamming, but it cannot fully restore the limiting and guiding capabilities.

[0004] Therefore, based on the above-mentioned technical problems, those skilled in the art urgently need to develop a press-fit fixture for the axle box swing arm node of a rail vehicle. Utility Model Content

[0005] The purpose of this utility model is to provide a press-fit fixture for the axle box swing arm node. This press-fit fixture uses a positioning guide post to replace the existing slide rail structure, ensuring that the positioning guide post can be replaced with a new one after it wears out. At the same time, the use of a brass sleeve as a connecting part of the positioning guide post can ensure quick replacement after wear.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model discloses a joint pressing fixture for axle box swing arm, which includes:

[0008] Base plate;

[0009] A first positioning structure located at one end of the base plate along its length, and a second positioning structure located at the other end of the base plate along its length; and

[0010] Two positioning guide posts are installed on the base plate;

[0011] The node pressing fixture also includes a pressure cap that is slidably connected to the two positioning guide posts;

[0012] The positioning guide post is detachably assembled and fixed to the base plate by bolts, and the two ends of the pressure cap are respectively slidably connected to the corresponding positioning guide post;

[0013] The pressure cap is provided at the middle position of the pressure cap assembly, and the pressure cap is provided with a receiving cavity to accommodate the press-fit component.

[0014] After the two ends of the axle box rotating arm are positioned by the first positioning structure and the second positioning structure respectively, the press-fit component is pressed into the corresponding position of the axle box rotating arm by the pressure cover.

[0015] Furthermore, the base plate includes a first plate and a second plate extending in the length direction;

[0016] The width of the first plate is smaller than the width of the second plate.

[0017] The first positioning structure is integrated on the first plate, and the second positioning structure is integrated on the second plate;

[0018] The positioning guide post is assembled and fixed to the second plate, and the two positioning guide posts are symmetrically arranged on both sides of the second positioning structure.

[0019] Furthermore, the second plate of the base plate has an installation groove on its side, and the base plate is assembled and fixed with external tooling by bolts in the installation groove.

[0020] Furthermore, the first positioning structure is configured as an annular structure that mates with the first end of the axle box rotating arm of the axle box rotating arm;

[0021] The second positioning structure is configured as an annular structure that mates with the second end of the axle box arm of the axle box arm.

[0022] Furthermore, a positioning guide post mounting ring is provided at the lower end of the positioning guide post, and the positioning guide post mounting ring is assembled and fixed to the base plate by bolts.

[0023] Furthermore, the gland assembly includes:

[0024] Connecting plate;

[0025] The sliding rings are connected to both ends of the connecting plate, and the positioning guide post is embedded in the sliding ring. The pressure cap assembly is slidably connected to the positioning guide post through the sliding ring; and

[0026] The pressure cap is located in the middle of the connecting plate.

[0027] Furthermore, the inner wall of the sliding ring is provided with a brass sleeve fitted onto the positioning guide post.

[0028] Furthermore, a handle protrudes from the outer side of the sliding ring.

[0029] The axle box rotating arm node press-fitting fixture provided by the present invention has the following beneficial effects:

[0030] The press-fit fixture of this utility model replaces the traditional slide rail structure with a positioning guide post. The positioning guide post is connected to the base plate by bolts, which makes it easy to replace the new one after the positioning guide post is worn. At the same time, the pressure cover assembly is connected to the positioning guide post with a brass sleeve, which can be quickly replaced after wear. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0032] Figure 1 This is a schematic diagram of the structure of a shaft box rotating arm node press-fitting fixture disclosed in an embodiment of the present utility model;

[0033] Figure 2 This is a schematic diagram of the first positioning structure of a bearing box rotating arm node press-fitting fixture disclosed in an embodiment of the present utility model;

[0034] Figure 3 This is a schematic diagram of the second positioning structure of a bearing box rotating arm node press-fitting fixture disclosed in an embodiment of the present utility model;

[0035] Figure 4 This is a schematic diagram of the structure of a shaft box rotating arm node pressing fixture and the shaft box rotating arm in a cooperative state, as disclosed in an embodiment of this utility model.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1. Base plate; 3. Positioning guide post; 4. Pressure cap assembly;

[0038] 10. Axle box swing arm; 11. First end of axle box swing arm; 12. Second end of axle box swing arm;

[0039] 101. First plate; 102. Second plate; 103. Mounting slot;

[0040] 201. First positioning structure; 202. Second positioning structure;

[0041] 301. Positioning guide post mounting ring; 302. Bolt;

[0042] 401. Connecting plate; 402. Sliding ring; 403. Pressure cap; 404. Brass sleeve; 405. Handle. Detailed Implementation

[0043] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0044] See Figures 1 to 4 As shown;

[0045] This embodiment provides a hub box swing arm node pressing fixture, which includes:

[0046] Base plate 1;

[0047] A first positioning structure 201 located at one end of the base plate 1 along its length, and a second positioning structure 202 located at the other end of the base plate 1 along its length; and

[0048] Two positioning guide posts 3 are installed on the base plate 1;

[0049] The node pressing fixture also includes a pressure cap 4 that is slidably connected to the two positioning guide posts 3;

[0050] The positioning guide post 3 is detachably assembled and fixed to the base plate 1 by bolts 302, and the two ends of the pressure cover assembly 4 are respectively slidably connected to the corresponding positioning guide post 3;

[0051] A pressure cap 403 is provided in the middle of the pressure cap assembly 4, and a receiving cavity for accommodating the press-fit component is provided inside the pressure cap 403.

[0052] After the two ends of the axle box rotating arm 10 are positioned by the first positioning structure 201 and the second positioning structure 202 respectively, the press-fit parts are pressed into the corresponding positions of the axle box rotating arm 10 by the pressure cover 403.

[0053] Specifically, this embodiment discloses a novel press-fit fixture for the nodes of axle box rotating arm. The base plate 1 of this embodiment is designed according to the length and corresponding width of the axle box rotating arm 10. Simultaneously, a first positioning structure 201 and a second positioning structure 202 are designed according to the node positions at both ends of the axle box rotating arm 10. The first positioning structure 201 and the second positioning structure 202 on the base plate 1 respectively cooperate with the corresponding positions of the axle box rotating arm 10 to position and support the axle box rotating arm 10. Meanwhile, two positioning guide posts 3 are installed on the base plate 1 of this embodiment, and a pressure cap assembly 4 of this embodiment is slidably engaged with the positioning guide posts 3. The two ends of the pressure cap assembly 4 are slidably connected to the positioning guide posts 3, and a pressure cap 403 is located in the middle of the pressure cap assembly 4. The pressure cap 403 cooperates with the node holes of the axle box rotating arm 10 and presses the press-fit component onto the axle box rotating arm 10.

[0054] Preferably, the base plate 1 in this embodiment includes a first plate 101 and a second plate 102 extending in the length direction;

[0055] In this embodiment, the width of the first plate 101 is smaller than the width of the second plate 102; the first positioning structure 201 is integrated on the first plate 101, and the second positioning structure 202 is integrated on the second plate 102.

[0056] The positioning guide post 3 is assembled and fixed to the second plate 102, and the two positioning guide posts 3 are symmetrically arranged on both sides of the second positioning structure 202.

[0057] In this embodiment, a base plate 1 composed of a first plate 101 and a second plate 102 is designed according to the size of the axle box swing arm 10. The first plate 101 and the second plate 102 are designed with different widths, which not only can they cooperate with the axle box swing arm 10, but also can make them meet the requirements of lightweight design.

[0058] Preferably, in this embodiment, the second plate 102 of the base plate 1 has an installation groove 103 on its side, and the base plate 1 is assembled and fixed with external tooling by bolts in the installation groove 103.

[0059] Preferably, the first positioning structure 201 in this embodiment is configured as a ring structure that cooperates with the first end 11 of the axle box rotating arm 10;

[0060] The second positioning structure 202 is configured as an annular structure that mates with the second end 12 of the axle box arm 10.

[0061] Preferably, in this embodiment, the lower end of the positioning guide post 3 is provided with a positioning guide post mounting ring 301, and the positioning guide post mounting ring 301 is assembled and fixed to the base plate 1 by bolts 302.

[0062] Preferably, the pressure cap assembly 4 in this embodiment includes a connecting plate 401, a sliding ring 402 connected to both ends of the connecting plate 401, and a positioning guide post 3 embedded in the sliding ring 402. The pressure cap assembly 4 is slidably connected to the positioning guide post 3 through the sliding ring 402; and a pressure cap 403 located in the middle of the connecting plate 401.

[0063] In order to facilitate the replacement of parts after wear, the inner wall of the sliding ring 402 in this embodiment is provided with a brass sleeve 404 that is fitted onto the positioning guide post 3. With this design, the internal brass sleeve 404 can be directly replaced after wear.

[0064] For ease of operation, a handle 405 is formed on the outer side of the sliding ring 402 in this embodiment.

[0065] The axle box rotating arm node press-fitting fixture provided by the present invention has the following beneficial effects:

[0066] The press-fit fixture of this utility model replaces the traditional slide rail structure with a positioning guide post 3. The positioning guide post 3 is connected to the base plate 1 by bolts 302, which makes it easy to replace the positioning guide post 3 with a new one after it wears out. At the same time, the pressure cover assembly 4 is connected to the positioning guide post 3 with a brass sleeve 404, which can be quickly replaced after wear.

[0067] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A shaft journal swivel node press-fit clamp, characterized by, The node press-fitting clamp comprises: a bottom plate (1); a first positioning structure (201) located at one end of the length direction of the bottom plate (1) and a second positioning structure (202) located at the other end of the length direction of the bottom plate (1); and two positioning guide columns (3) mounted on the bottom plate (1); the node press-fitting clamp further comprises a pressure cover assembly (4) slidably connected to the two positioning guide columns (3); the positioning guide columns (3) are detachably assembled and fixed on the bottom plate (1) through bolts (302), and the two ends of the pressure cover assembly (4) are slidably connected to the corresponding positioning guide columns (3) respectively; a pressure cover (403) is arranged at the middle position of the pressure cover assembly (4), and an accommodating cavity for accommodating a press-fitting part is arranged in the pressure cover (403); after the two ends of the axle box rotating arm (10) are positioned through the first positioning structure (201) and the second positioning structure (202) respectively, the press-fitting part is press-fitted to the corresponding position of the axle box rotating arm (10) through the pressure cover (403).

2. A shaft journal swivel node press fitting jig according to claim 1, characterized in that, The bottom plate (1) comprises a first plate body (101) and a second plate body (102) extending in the length direction; the width of the first plate body (101) is smaller than the width of the second plate body (102); the first positioning structure (201) is integrated on the first plate body (101), and the second positioning structure (202) is integrated on the second plate body (102); the positioning guide columns (3) are assembled and fixed on the second plate body (102), and the two positioning guide columns (3) are symmetrically arranged on the two sides of the second positioning structure (202).

3. A shaft journal swivel node press fitting jig according to claim 2, characterized in that, An installation through slot (103) is formed in the side surface of the second plate body (102) of the bottom plate (1), and the bottom plate (1) is assembled and fixed with external tooling through the bolts in the installation through slot (103).

4. A shaft journal swivel node press fitting jig according to claim 2, characterized in that, The first positioning structure (201) is configured as a circular ring structure matched with the first end (11) of the axle box rotating arm of the axle box rotating arm; the second positioning structure (202) is configured as a circular ring structure matched with the second end (12) of the axle box rotating arm of the axle box rotating arm.

5. A shaft journal swivel node press fitting jig according to claim 2, characterized in that, A positioning guide column mounting ring (301) is arranged at the lower end of the positioning guide column (3), and the positioning guide column mounting ring (301) is assembled and fixed with the bottom plate (1) through bolts (302).

6. A shaft journal swivel node press fitting jig according to claim 5, characterized in that, The pressure cover assembly (4) comprises: a connecting plate (401); a sliding ring (402) connected to the two ends of the connecting plate (401), and the positioning guide column (3) is embedded in the sliding ring (402), and the pressure cover assembly (4) is slidably connected with the positioning guide column (3) through the sliding ring (402); and a pressure cover (403) located at the middle position of the connecting plate (401).

7. A shaft journal swivel node press fitting jig according to claim 6, characterized in that A brass sleeve (404) is arranged on the positioning guide column (3) on the inner wall of the sliding ring (402).

8. A shaft journal swivel node press fitting jig according to claim 6, characterized in that, A handle (405) is protruded on the outer side of the sliding ring (402).

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