Jacking device for wheel set rotation

Abstract

The utility model relates to the technical field of wheel set measurement, in particular to a jacking device for wheel set rotation, which comprises a first jacking device and a second jacking device which are oppositely arranged, the first jacking device is of a rigid structure, and the second jacking device is of an elastic structure. The first jacking device comprises a first position adjusting plate, a first position adjusting shaft, a first jacking cover, a first double-row angular contact ball bearing and a first jacking shaft. The second jacking device comprises a second jacking cover, a second double-row angular contact ball bearing, a second jacking shaft, a spring, a spring adjusting shaft, a second position adjusting shaft and a second position adjusting plate, and the spring adjusting shaft is mounted on the second position adjusting shaft; the two ends of the spring abut against the second abutting shaft and the spring adjusting shaft correspondingly and are used for driving the second abutting shaft and the spring adjusting shaft to move relatively. The jacking device for wheel set rotation aims to solve the problem that measurement data are inaccurate due to the fact that the wheel set rotates to move when the wheel set is measured.

Description

Technical Field

[0001] The utility model relates to the technical field of wheelset measurement, in particular to a tightening device for wheelset rotation. Background Art

[0002] When measuring the wheelset axially or radially, it is often necessary to rotate the wheelset to measure specific parameters at different positions. When the wheelset rotates, it will jump in one direction due to its own processing error or roller installation error, which will cause the measured values ​​to be inaccurate at different positions. Since the direction of the wheelset's jump and the specific value are random, it is difficult to correct them through software compensation.

[0003] Therefore, the inventor provides a tightening device for wheelset rotation. Utility Model Content

[0004] (1) Technical issues to be solved

[0005] The embodiment of the utility model provides a tightening device for wheelset rotation, which solves the technical problem of inaccurate measurement data caused by the jump caused by the wheelset rotation during wheelset measurement.

[0006] (2) Technical solution

[0007] The utility model provides a tightening device for wheelset rotation, comprising a first tightening device and a second tightening device arranged opposite to each other, wherein the first tightening device is a rigid structure and the second tightening device is an elastic structure; wherein:

[0008] The first tightening device comprises a first position adjustment plate, a first position adjustment shaft, a first tightening cover, a first double-row angular contact ball bearing and a first tightening shaft, wherein the first position adjustment shaft is mounted on the first position adjustment plate, and the relative position between the first position adjustment shaft and the first position adjustment plate is adjusted to adapt to the installation of different wheel sets, the first tightening shaft is mounted on the first position adjustment shaft, the first double-row angular contact ball bearing is sleeved and mounted on the first tightening shaft, and the first tightening cover is sleeved and mounted on the outer ring of the first double-row angular contact ball bearing;

[0009] The second tightening device includes a second tightening cover, a second double-row angular contact ball bearing, a second tightening shaft, a spring, a spring adjustment shaft, a second position adjustment shaft and a second position adjustment plate. The second position adjustment shaft is installed on the second position adjustment plate, and the relative position of the second position adjustment shaft and the second position adjustment plate is adjusted to adapt to the installation of different wheel pairs. The spring adjustment shaft is installed on the second position adjustment shaft and is used for transition connection of the tightening end components. The second tightening shaft is installed on the side of the spring adjustment shaft facing the first tightening device; the two ends of the spring are respectively abutted against the second tightening shaft and the spring adjustment shaft, and the second tightening shaft and the spring adjustment shaft move relative to each other through the spring; the second double-row angular contact ball bearing is sleeved and installed on the second tightening shaft.

[0010] Furthermore, the first tightening device further comprises a first polytetrafluoroethylene cover, and the first polytetrafluoroethylene cover is installed on a side of the first tightening cover facing the second tightening device.

[0011] Furthermore, the first tightening device also includes a first bearing end cover, and the first tightening cover is fixed to the first double-row angular contact ball bearing through the first bearing end cover.

[0012] Furthermore, the first tightening device further comprises a first locking nut, and the first position adjustment shaft is mounted on the first position adjustment plate through threads and the first locking nut to adjust the relative position of the first position adjustment shaft and the first position adjustment plate.

[0013] Furthermore, the first tightening device further comprises a second locking nut, and the first double-row angular contact ball bearing is fixed on the first tightening shaft through the second locking nut to withstand radial force and bidirectional axial force.

[0014] Furthermore, the first tightening device further includes a third locking nut, and the first tightening shaft is mounted on the first position adjustment shaft through threads and the third locking nut.

[0015] Furthermore, the second tightening device further comprises a second polytetrafluoroethylene cover, and the second polytetrafluoroethylene cover is installed on a side of the second tightening cover facing the first tightening device.

[0016] Furthermore, the second tightening device further comprises a fourth locking nut, and the second double-row angular contact ball bearing is fixed on the second tightening shaft via the fourth locking nut to withstand radial force and bidirectional axial force.

[0017] Furthermore, the second tightening device also includes a fifth locking nut, and the spring adjustment shaft is installed on the second position adjustment shaft through threads and the fifth locking nut.

[0018] Furthermore, the second tightening device also includes a sixth locking nut, and the second position adjustment shaft is mounted on the second position adjustment plate through threads and the sixth locking nut to adjust the relative position of the second position adjustment shaft and the second position adjustment plate.

[0019] (3) Beneficial effects

[0020] In summary, the utility model ensures a reasonable jacking arrangement by designing the first jacking device as a rigid structure and the second jacking device as an elastic structure. Both of them have an adjustment function and can adapt to the installation of wheelsets of different lengths. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments of the utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the overall structure of a tightening device for wheelset rotation provided by an embodiment of the utility model;

[0023] Figure 2 It is a structural schematic diagram of a first tightening device in a tightening device for wheelset rotation provided by an embodiment of the utility model;

[0024] Figure 3 It is a structural schematic diagram of a second tightening device in a tightening device for wheelset rotation provided in an embodiment of the utility model.

[0025] In the figure:

[0026] 1-first tightening device 1; 2-second tightening device; 3-first position adjustment plate; 4-first position adjustment shaft; 5-first locking nut; 6-first polytetrafluoroethylene cover; 7-first tightening cover; 8-second locking nut; 9-first double-row angular contact ball bearing; 10-first tightening shaft; 11-third locking nut; 12-first bearing end cover; 13-second polytetrafluoroethylene cover; 14-second tightening cover; 15-second double-row angular contact ball bearing; 16-fourth locking nut; 17-second tightening shaft; 18-spring; 19-spring adjustment shaft; 20-second bearing end cover; 21-spring shaft baffle; 22-fifth locking nut; 23-second position adjustment shaft; 24-sixth locking nut; 25-second position adjustment plate. DETAILED DESCRIPTION

[0027] The following is a further detailed description of the implementation of the utility model in conjunction with the accompanying drawings and examples. The detailed description of the following examples and the accompanying drawings are used to exemplarily illustrate the principles of the utility model, but cannot be used to limit the scope of the utility model, that is, the utility model is not limited to the described embodiments, and covers any modification, replacement and improvement of parts, components and connection methods without departing from the spirit of the utility model.

[0028] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships conventionally placed when the product of the present invention is used, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting" and "installation" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Figure 1 It is a structural schematic diagram of a tightening device for wheelset rotation provided by an embodiment of the utility model. The tightening device may include a first tightening device 1 and a second tightening device 2 that are relatively arranged. The first tightening device 1 is a rigid structure, and the second tightening device 2 is an elastic structure.

[0032] like Figure 2 As shown, the first tightening device 1 includes a first position adjustment plate 3, a first position adjustment shaft 4, a first tightening cover 7, a first double-row angular contact ball bearing 9 and a first tightening shaft 10. The first position adjustment shaft 4 is installed on the first position adjustment plate 3, and the relative position of the first position adjustment shaft 4 and the first position adjustment plate 3 is adjusted to adapt to the installation of different wheel pairs. The first tightening shaft 10 is installed on the first position adjustment shaft 4, the first double-row angular contact ball bearing 9 is sleeved and installed on the first tightening shaft 10, and the first tightening cover 7 is sleeved and installed on the outer ring of the first double-row angular contact ball bearing 9.

[0033] As an optional implementation, Figure 2As shown, the first jacking device 1 also includes a first polytetrafluoroethylene cover 6, which is installed on the side of the first jacking cover 7 facing the second jacking device 2. The use of polytetrafluoroethylene material to contact the end face of the wheelset shaft can minimize the wear on the wheelset while maintaining the friction force.

[0034] More preferably, if Figure 2 As shown, the first tightening device 1 also includes a first bearing end cover 12, and the first tightening cover 7 is fixed to the first double-row angular contact ball bearing 9 through the first bearing end cover 12, so as to realize the rotation function. The first bearing end cover 12 can be installed at one end of the first tightening cover 7 away from the second tightening device 2 by screws.

[0035] More preferably, if Figure 2 As shown, the first tightening device 1 also includes a first locking nut 5, and the first position adjustment shaft 4 is installed on the first position adjustment plate 3 through threads and the first locking nut 5 to adjust the relative position of the first position adjustment shaft 4 and the first position adjustment plate 3 to adapt to the installation of different wheel sets.

[0036] More preferably, if Figure 2 As shown, the first tightening device 1 also includes a second locking nut 8, and the first double-row angular contact ball bearing 9 is fixed on the first tightening shaft 10 through the second locking nut 8 to withstand radial force and bidirectional axial force to ensure the rotation and tightening function of the device.

[0037] More preferably, if Figure 2 As shown, the first jacking device 1 further includes a third locking nut 11, and the first jacking shaft 10 is installed on the first position adjustment shaft 4 through threads and the third locking nut 11, and is the main load-bearing component of the entire device.

[0038] like Figure 3 As shown, the second tightening device 2 includes a second tightening cover 14, a second double-row angular contact ball bearing 15, a second tightening shaft 17, a spring 18, a spring adjustment shaft 19, a second bearing end cover 20, a second position adjustment shaft 23 and a second position adjustment plate 25. The second position adjustment shaft 23 is installed on the second position adjustment plate 25, and the relative position of the second position adjustment shaft 23 and the second position adjustment plate 25 is adjusted to adapt to the installation of different wheel sets. The spring adjustment shaft 19 is installed on the second position adjustment shaft 23 and is used for transition connection of the tightening end parts. The second tightening shaft 17 is installed on the side of the spring adjustment shaft 19 facing the first tightening device 1 and is the main load-bearing component of the entire structure; the two ends of the spring 18 are respectively abutted against the second tightening shaft 17 and the spring adjustment shaft 19, and the second tightening shaft 17 and the spring adjustment shaft 19 move relative to each other through the spring 18; the second double-row angular contact ball bearing 15 is sleeved and installed on the second tightening shaft 17. Among them, the spring 18 generally uses a rectangular spring.

[0039] As an optional implementation, Figure 3 As shown, the second jacking device 2 also includes a second polytetrafluoroethylene cover 13, which is installed on the side of the second jacking cover 14 facing the first jacking device 1. Using polytetrafluoroethylene material to contact the end face of the wheelset shaft can minimize the wear on the wheelset while maintaining friction.

[0040] More preferably, if Figure 3 As shown, the second tightening device 2 also includes a fourth locking nut 16, and the second double-row angular contact ball bearing 15 is fixed to the second tightening shaft 17 through the fourth locking nut 16 to withstand radial force and bidirectional axial force to ensure the rotation and tightening function of the device.

[0041] More preferably, if Figure 3 As shown, the second tightening device 2 also includes a fifth locking nut 22, and the spring adjustment shaft 19 is installed on the second position adjustment shaft 23 through threads and the fifth locking nut 22, which is used for transition connection of the tightening end components.

[0042] More preferably, if Figure 3 As shown, the second tightening device 2 further includes a sixth locking nut 24 , and the second position adjustment shaft 23 is installed on the second position adjustment plate 25 through threads and the sixth locking nut 24 to adjust the relative position of the second position adjustment shaft 23 and the second position adjustment plate 25 .

[0043] More preferably, if Figure 3 As shown, the second tightening device 2 also includes a second bearing end cover 20, and the second tightening cover 14 is installed on the outer ring of the second double-row angular contact ball bearing 15, and is fixed on the second double-row angular contact ball bearing 15 by the second bearing end cover 20, so as to realize the rotation function. Among them, the second bearing end cover 201 can be installed on the end of the second tightening cover 14 away from the first tightening device 1 by screws.

[0044] More preferably, if Figure 3 As shown, the second tightening device 2 also includes a spring shaft baffle 21, which can be installed at the end of the second tightening shaft 17 away from the first tightening device 1 by screws to achieve the maximum axial distance between the second tightening shaft 17 and the spring adjustment shaft 19.

[0045] It should be clear that the various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. The utility model is not limited to the specific steps and structures described above and shown in the figures. In addition, for the sake of simplicity, detailed descriptions of known methods and technologies are omitted here.

[0046] The above are only embodiments of the present application and are not limited to the present application. For those skilled in the art, the present application may have various changes and variations without departing from the scope of the present invention. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of the claims of the present application.

Claims

1. A tightening device for wheelset rotation, characterized in that: It comprises a first tightening device (1) and a second tightening device (2) which are arranged opposite to each other, wherein the first tightening device (1) is a rigid structure and the second tightening device (2) is an elastic structure; wherein: The first tightening device (1) comprises a first position adjustment plate (3), a first position adjustment shaft (4), a first tightening cover (7), a first double-row angular contact ball bearing (9) and a first tightening shaft (10); the first position adjustment shaft (4) is mounted on the first position adjustment plate (3), and the relative position between the first position adjustment shaft (4) and the first position adjustment plate (3) is adjusted to adapt to the installation of different wheel sets; the first tightening shaft (10) is mounted on the first position adjustment shaft (4); the first double-row angular contact ball bearing (9) is sleeved and mounted on the first tightening shaft (10); and the first tightening cover (7) is sleeved and mounted on the outer ring of the first double-row angular contact ball bearing (9); The second tightening device (2) comprises a second tightening cover (14), a second double-row angular contact ball bearing (15), a second tightening shaft (17), a spring (18), a spring adjustment shaft (19), a second position adjustment shaft (23) and a second position adjustment plate (25); the second position adjustment shaft (23) is mounted on the second position adjustment plate (25), and the relative position of the second position adjustment shaft (23) and the second position adjustment plate (25) is adjusted to adapt to the installation of different wheel sets; the spring adjustment shaft (19) is mounted on the second position adjustment plate (25). The second tightening shaft (17) is mounted on the second position adjustment shaft (23) and is used for transition connection with the tightening end component. The second tightening shaft (17) is installed on the side of the spring adjustment shaft (19) facing the first tightening device (1); the two ends of the spring (18) are respectively abutted against the second tightening shaft (17) and the spring adjustment shaft (19), and the second tightening shaft (17) and the spring adjustment shaft (19) move relative to each other through the spring (18); the second double-row angular contact ball bearing (15) is sleeved and installed on the second tightening shaft (17).

2. The tightening device for wheelset rotation according to claim 1, characterized in that: The first tightening device (1) further comprises a first polytetrafluoroethylene cover (6), wherein the first polytetrafluoroethylene cover (6) is mounted on a side of the first tightening cover (7) facing the second tightening device (2).

3. The tightening device for wheelset rotation according to claim 1, characterized in that: The first tightening device (1) further comprises a first bearing end cover (12), and the first tightening cover (7) is fixed to the first double-row angular contact ball bearing (9) via the first bearing end cover (12).

4. The tightening device for wheelset rotation according to claim 1, characterized in that: The first tightening device (1) further comprises a first locking nut (5), and the first position adjustment shaft (4) is mounted on the first position adjustment plate (3) through threads and the first locking nut (5) to adjust the relative position of the first position adjustment shaft (4) and the first position adjustment plate (3).

5. The tightening device for wheelset rotation according to claim 1, characterized in that: The first tightening device (1) further comprises a second locking nut (8), and the first double-row angular contact ball bearing (9) is fixed on the first tightening shaft (10) via the second locking nut (8) to withstand radial force and bidirectional axial force.

6. The tightening device for wheelset rotation according to claim 1, characterized in that: The first tightening device (1) further comprises a third locking nut (11), and the first tightening shaft (10) is mounted on the first position adjustment shaft (4) through threads and the third locking nut (11).

7. The tightening device for wheelset rotation according to claim 1, characterized in that: The second tightening device (2) further comprises a second polytetrafluoroethylene cover (13), wherein the second polytetrafluoroethylene cover (13) is mounted on a side of the second tightening cover (14) facing the first tightening device (1).

8. The tightening device for wheelset rotation according to claim 1, characterized in that: The second tightening device (2) further comprises a fourth locking nut (16), and the second double-row angular contact ball bearing (15) is fixed on the second tightening shaft (17) via the fourth locking nut (16) to withstand radial force and bidirectional axial force.

9. The tightening device for wheelset rotation according to claim 1, characterized in that: The second tightening device (2) further comprises a fifth locking nut (22), and the spring adjustment shaft (19) is mounted on the second position adjustment shaft (23) through threads and the fifth locking nut (22).

10. The tightening device for wheelset rotation according to claim 1, characterized in that: The second tightening device (2) further comprises a sixth locking nut (24), and the second position adjustment shaft (23) is mounted on the second position adjustment plate (25) through threads and the sixth locking nut (24) to adjust the relative position of the second position adjustment shaft (23) and the second position adjustment plate (25).

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