A kind of auxiliary device for limiting anti-roll torque rod

Abstract

The utility model discloses an auxiliary device for the limiting of anti -roll torsion bar, including first limit subassembly and second limit piece, first limit subassembly includes main part, abutment piece and pressure tightly spare, main part can set at the position department of lower ball head and the connection of bending torsion bar, abutment piece can be arranged in main part, one side of abutment piece is used for abutting with lower ball head, is used for the limiting anti -roll torsion bar lower ball head, pressure tightly spare sets up on main part, and one end of pressure tightly spare is used for abutting abutment piece, second limit piece sets up in the free space between upper ball head and mounting seat, is used for the limiting anti -roll torsion bar upper ball head, the utility model discloses an auxiliary device for the limiting of anti -roll torsion bar, can carry out the limiting fixing of anti -roll torsion bar upper ball head and lower ball head, can guarantee the stability of position state when adjusting limiting nut of anti -roll torsion bar, can reduce the adjustment damage to anti -roll torsion bar.

Description

Technical Field

[0001] This utility model belongs to the field of subway vehicle technology, specifically relating to an auxiliary device for limiting anti-roll torsion bars. Background Technology

[0002] Reference Figure 1 The subway car is equipped with a secondary suspension system between the bogie and the car body. Among them, the bending torsion bar 4 and the anti-roll torsion bar 3 are key components of the secondary suspension system. The bending torsion bar 4 is an integral bending torsion bar. One end of the anti-roll torsion bar 3 is connected to the bending torsion bar 4, and the other end is connected to the mounting seat 51 on the car body underframe 5. The anti-roll torsion bar 3 includes a threaded sleeve 31, a lower ball head 32 and its first stud 321, an upper ball head 33 and its second stud 331, and a limiting nut 34. The threaded sleeve 31 is threaded onto the first stud 321 of the lower ball head and the second stud 331 of the upper ball head. Therefore, after the limiting nut 34 is unlocked, the position of the threaded sleeve 31 relative to the upper and lower ball heads can be adjusted. During subway vehicle maintenance, after wheelset turning, the car body height is increased by adding shims. This height adjustment necessitates adjusting the height of the bogie anti-roll torsion bar 3. However, this adjustment requires first unlocking the limit nut 34 before adjusting the overall height of the anti-roll torsion bar 3. Since unlocking the limit nut 34 requires significant torque, and there is a gap between the upper ball joint 22 and the mounting base 51 on the car body underframe (i.e., there is no direct point of contact at the upper ball joint 33), and the lower ball joint 32 is hinged to the torsion bar 4, unlocking the limit nut 34 can easily cause the lower ball joint 32 of the anti-roll torsion bar 3 to dislodge, and can also easily cause torsional deformation of the anti-roll torsion bar 3.

[0003] Currently, there is a lack of an auxiliary device for limiting the anti-roll torsion bar to limit and fix the upper and lower ball joints of the anti-roll torsion bar, ensuring the stability of the position of the anti-roll torsion bar when adjusting the limiting nut, and reducing the adjustment damage to the anti-roll torsion bar.

[0004] Therefore, a new technology is needed to address the lack of an auxiliary device for limiting anti-roll torsion bars in existing technologies. Utility Model Content

[0005] To address the aforementioned problems in the prior art, this utility model provides an auxiliary device for limiting the anti-roll torsion bar. This device can limit and fix the upper and lower ball heads of the anti-roll torsion bar, ensuring the stability of the anti-roll torsion bar's position when adjusting the limiting nut and reducing adjustment damage to the anti-roll torsion bar.

[0006] The present invention adopts the following technical solution:

[0007] An auxiliary device for limiting an anti-roll torsion bar includes a first limiting component and a second limiting member. The first limiting component includes a main body, an abutment, and a clamping member. The main body is disposed at the position where the lower ball joint connects to the torsion bar. The abutment is disposed in the main body, with one side abutting against the lower ball joint to limit the lower ball joint of the anti-roll torsion bar. The clamping member is disposed on the main body, with one end abutting against the abutment. The second limiting member is disposed in the clearance between the upper ball joint and the mounting base to limit the upper ball joint of the anti-roll torsion bar.

[0008] Furthermore, the first limiting component also includes a positioning element; the abutting element is disposed on the main body through the positioning element.

[0009] Furthermore, the main body is a ring with an opening; the ring has a through groove and a hook head; the ring is positioned at the lower ball head and the torsion bar connection point via the through groove and the hook head.

[0010] Furthermore, the thickness of the ring is at least 20 mm.

[0011] Furthermore, the cross arm of the ring is provided with a first threaded hole; the clamping member is a first bolt of a set length; the first bolt is threadedly connected to the first threaded hole, and the end of the first bolt can abut against one side of the abutting member.

[0012] Furthermore, the abutting member is an abutting block; the abutting block is arranged in the through groove, and the abutting block is connected to the ring member through the positioning member; one side of the abutting block is used to abut against the lower ball head.

[0013] Furthermore, the abutment block is a circular abutment block or a polygonal abutment block.

[0014] Furthermore, the abutment block is provided with a second threaded hole; the cross arm of the ring is also provided with a through hole; the positioning element is a second bolt of a set length; the second bolt passes through the through hole and is threadedly connected to the second threaded hole.

[0015] Furthermore, the second limiting member is a limiting block; the limiting block has an abutting portion for abutting against the mounting base and a first groove for abutting against the upper ball head.

[0016] Furthermore, the limiting block also has a second groove for abutting against the spherical bearing; the second groove is disposed adjacent to the first groove.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] When the anti-roll torsion bar needs to be adjusted in height, the main body is fitted onto the "lower ball head and bending torsion bar connection" position. A clamping member presses against one side of the abutment member, ensuring the other side of the abutment member is in close contact with the lower ball head, thus limiting the relative rotation of the lower ball head. Additionally, a second limiting member is inserted into the gap between the upper ball head and the mounting base. Different positions of the second limiting member abut against the upper ball head and the mounting base, further limiting the relative movement of the upper ball head. This allows operators to easily adjust the limiting nut (e.g., unlock or tighten it).

[0019] This utility model discloses an auxiliary device for limiting an anti-roll torsion bar. It can limit and fix the upper and lower ball heads of the anti-roll torsion bar, ensure the stability of the position of the anti-roll torsion bar when adjusting the limiting nut, and reduce the adjustment damage to the anti-roll torsion bar. Attached Figure Description

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0021] Figure 1 This is a schematic diagram of the upper and lower ball heads of the limiting anti-roll torsion bar of the auxiliary device of this utility model (in which, the bending torsion bar is partially shown and the vehicle body underframe is simplified) (in which, the threaded sleeve is in normal form);

[0022] Figure 2 This is a pre-assembly diagram of the first limiting component (the threads of the clamping and positioning parts are not shown);

[0023] Figure 3 This is an assembly diagram of the first limiting component;

[0024] Figure 4 This is a schematic elevation view of the first limiting component;

[0025] Figure 5 This is a three-dimensional schematic diagram of the second limiting component;

[0026] Figure 6 yes Figure 5 The top view.

[0027] Figure label:

[0028] 1-First limiting component; 11-Main body; 111-Notch; 112-Through groove; 113-Hook head; 114-Horizontal arm; 115-First threaded hole; 116-Through hole; A-Height; B-Length; 12-Abutting part; 121-Second threaded hole; 13-Clamping part; 14-Positioning part;

[0029] 2-Second limiting member; 21-First groove; 22-Second groove; C-Length; D-Width; 23-Chamfered part;

[0030] 3-Anti-rolling torsion bar; 31-Threaded sleeve; 32-Lower ball head; 321-First stud; 33-Upper ball head; 331-Second stud; 34-Limit nut; 35-Spherical plain bearing; 36-Mandrel; 37-Connecting bolt;

[0031] 4-Bending torsion bar;

[0032] 5-Car body underframe; 51-Mounting base. Detailed Implementation

[0033] The following will provide a clear and complete description of the concept, specific structure, and technical effects of this utility model in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, solution, and effects of this utility model. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The same reference numerals used throughout the drawings indicate the same or similar parts.

[0034] It should be noted that, unless otherwise specified, when a feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or it can be indirectly fixed or connected to the other feature. Furthermore, the descriptions of "upper," "lower," "left," and "right" used in this utility model are only relative to the relative positional relationships of the various components of this utility model in the accompanying drawings.

[0035] Reference Figures 1 to 6 An auxiliary device for limiting an anti-roll torsion bar includes a first limiting component 1 and a second limiting member 2. The first limiting component 1 includes a main body 11, an abutment member 12, and a clamping member 13. The main body 11 can be disposed at the position where the lower ball head 32 connects to the torsion bar 4. The abutment member 12 can be disposed in the main body 11, and one side of the abutment member 12 is used to abut against the lower ball head 32 to limit the lower ball head 32 of the anti-roll torsion bar 3. The clamping member 13 is disposed on the main body 11, and one end of the clamping member 13 is used to abut against the abutment member 12. The second limiting member 2 is disposed in the gap between the upper ball head 33 and the mounting base 51 to limit the upper ball head 33 of the anti-roll torsion bar 3.

[0036] Reference Figures 1 to 6 In one embodiment, the first limiting component 1 further includes a positioning member 14; the abutting member 12 is disposed on the main body member 11 through the positioning member 14.

[0037] Reference Figures 1 to 4In one embodiment, the main body 11 is a ring with a notch 111; the ring has a through groove 112 and a hook head 113; the ring is positioned at the location where the lower ball head 32 and the torsion bar 4 are connected via the through groove 112 and the hook head 113.

[0038] In one embodiment, the thickness of the ring is at least 20 mm. In this embodiment, the thickness of the ring is 30 mm.

[0039] Reference Figures 1 to 4 In one embodiment, the ring has a height A of 200 mm, a length B of 150 mm, and a thickness of 30 mm; wherein the notch 111 has a length of 70 mm.

[0040] Reference Figures 1 to 4 In one embodiment, the cross arm 114 of the ring member is provided with a first threaded hole 115; the clamping member 13 is a first bolt of a set length; the first bolt is threadedly connected to the first threaded hole 115, and the end of the first bolt can abut against one side of the abutting member 12.

[0041] In one embodiment, the clamping member 13 is an M12 hexagonal bolt; the first threaded hole 115 is an M12 threaded hole; the clamping member 13 is threadedly connected to the first threaded hole 115, which can realize stepless adjustment of the clamping member 13, so that the end of the clamping member 13 can press against the abutment member 12.

[0042] Reference Figures 1 to 4 In one embodiment, the abutting member 12 is an abutting block; the abutting block is arranged in the through groove 112, and the abutting block is connected to the ring member through the positioning member 14; one side of the abutting block is used to abut against the lower ball head 32.

[0043] In one embodiment, the abutment block is a circular abutment block or a polygonal abutment block. (See reference...) Figures 1 to 4 In this embodiment, the abutting block is a circular abutting block (i.e., the top view of the abutting block is circular), the thickness of the circular abutting block is 15mm, and the diameter of its circular outline (top view) is 100mm; in another embodiment, the abutting block is a polygonal abutting block, such as a rectangular abutting block (i.e., the top view of the abutting block is rectangular).

[0044] Reference Figures 1 to 4In one embodiment, the abutment block is provided with a second threaded hole 121; the cross arm 114 of the ring member is also provided with a through hole 116; the positioning member 14 is a second bolt of a predetermined length; the second bolt passes through the through hole 116 and is threadedly connected to the second threaded hole 121. Since the through hole 116 is a smooth hole, the second bolt of the predetermined length can move forward or backward along the axial direction of the through hole 116. This design is advantageous for pushing the abutment block to contact the lower ball head 32 through the second bolt, and then using the clamping member 13 to press against the abutment block (i.e., limit the position of the abutment block), thereby limiting the lower ball head 32.

[0045] In one embodiment, the positioning element 14 is an M10 hexagonal bolt; the second threaded hole 121 is an M10 threaded hole; and the through hole 116 is a through hole (smooth through hole) with a diameter of 10mm.

[0046] Reference Figure 1 , Figure 5 and Figure 6 In one embodiment, the second limiting member 2 is a limiting block; the limiting block has an abutting portion for abutting against the mounting base 51 and a first groove 21 for abutting against the upper ball head 33.

[0047] Reference Figure 1 , Figure 5 and Figure 6 In one embodiment, the limiting block further has a second groove 22 for abutting against the spherical bearing 35; the second groove 22 is disposed adjacent to the first groove 21 and communicates with the first groove 21.

[0048] Reference Figure 1 , Figure 5 and Figure 6 In one embodiment, the limiting block is formed by cutting the first groove 21 and the second groove 22 from a rectangular steel block (length C = 70 mm, width D = 35 mm, thickness 30 mm). Preferably, the limiting block has a chamfered portion 23.

[0049] Reference Figures 1 to 6In one embodiment, the anti-roll torsion bar 3 includes a threaded sleeve 31, a lower ball head 32 and its first stud 321, an upper ball head 33 and its second stud 331, and a limiting nut 34; one end of the threaded sleeve 31 is threadedly connected to the first stud 321, and the other end of the threaded sleeve 31 is threadedly connected to the second stud 331; the first stud 321 is provided with a limiting nut 34, and the limiting nut 34 is located at the lower end of the threaded sleeve 31, used to limit the position of the threaded sleeve 31; the first ball head 321 and its second stud 331 are threadedly connected to the second stud 331; the second ball head 331 and its second stud 331 are threadedly connected to the first ball head 321, and the second ball head 331 is threadedly connected to the second stud 331; the first ball head 321 and its second stud 331 are threadedly connected to the first ball head 321, and the second ball head 331 is threaded to the second ball head 331. A limiting nut 34 is provided on the two studs 331, and the limiting nut 34 is located at the upper end of the threaded sleeve 31 to limit the position of the threaded sleeve 31; the lower ball head 32 is hinged to the torsion bar 4; a spherical bearing 35 is fitted in the upper ball head 33; a mandrel 36 is fitted in the spherical bearing 35; the upper ball head 33 is connected to the mounting seat 51 of the vehicle body frame 5 through the mandrel 36 and the connecting bolt 37, and after connection, there is a clearance between the top of the upper ball head 33 and the mounting seat 51. Preferably, a washer is also provided between the limiting nut 34 and the end of the threaded sleeve 31.

[0050] When adjusting the height of the anti-roll torsion bar 3, the limiting nut 34 must be unlocked first. Only then can the relative depth of the first stud 321 or the second stud 331 connected to the threaded sleeve 31 be changed, ultimately achieving height adjustment of the anti-roll torsion bar 3. Before unlocking the limiting nut 34, the auxiliary device of this invention must be used to safely unlock it. This effectively prevents the lower ball joint 32 from dislodging and also effectively prevents torsion deformation of the anti-roll torsion bar during adjustment. Similarly, before restoring the limiting nut 34 to its original position, the auxiliary device of this invention must be installed in the corresponding position before tightening the limiting nut 34.

[0051] Before adjusting the anti-roll torsion bar 3, the first limiting component 1 of this utility model is installed at the position where the lower ball head 32 and the bending torsion bar 4 are connected, and the second limiting component 2 is inserted into the gap between the upper ball head 33 and the mounting base 51. Then, the limiting nut 34 can be unlocked using a disassembly tool, so that the limiting nut 34 temporarily maintains a set distance from the end of the threaded sleeve 31. After that, if the upper end of the threaded sleeve 31 no longer abuts against the limiting nut 34, the maintenance personnel can then remove the connecting bolt 37 on the mandrel 36 and change the depth of the second stud 331 inserted into the threaded sleeve 31 to adjust the overall height of the anti-roll torsion bar 3. After adjustment, the connection relationship of the components is restored, and the limiting nut 34 is tightened again (similarly, before restoring the limiting nut 34, the auxiliary device of this utility model is installed in the corresponding position before tightening the limiting nut 34).

[0052] In one embodiment, the auxiliary device of this utility model is used as follows:

[0053] S1. Assemble the first limiting component 1, that is: assemble the abutting member 12, the positioning member 14 and the clamping member 13 onto the main body member 11;

[0054] S2. Insert the second limiting member 2 into the gap between the upper ball head 33 and the mounting base 51 to limit and fix the upper ball head 33 and the spherical bearing 35.

[0055] S3. Using the through groove 112 and hook head 113 of the main body 11, the main body 11 is fitted into the position where the lower ball head 32 and the bent torsion bar 4 are connected. The positioning member 14 is pushed in so that one side of the abutment member 12 abuts against the lower ball head 32. Then the pressing member 13 is rotated so that one end of the pressing member 13 presses against the other side of the abutment member 12, so that the abutment member 12 is in close contact with the lower ball head 32, thereby achieving the limiting and fixing of the lower ball head 32.

[0056] S4. After the second limiting member 2 and the first limiting component 1 are all installed in place, the limiting nut 34 can be loosened or tightened. Finally, after a series of operations, the safe adjustment of the height of the anti-roll torsion bar 3 is completed (the adjustment process of the height of the anti-roll torsion bar 3 will not be described in detail here).

[0057] In one embodiment, the present invention provides an auxiliary device for limiting the anti-roll torsion bar, which can limit and fix the upper ball head 33 and the lower ball head 32 of the anti-roll torsion bar 3, ensuring the stability of the position of the anti-roll torsion bar 3 when adjusting the limiting nut, and reducing the adjustment damage to the anti-roll torsion bar 3.

[0058] This invention can effectively prevent the lower ball joint 32 from coming out, and can also effectively prevent the anti-roll torsion bar from tortuous deformation during the adjustment process.

[0059] This invention can improve work efficiency and quality, save manpower, and reduce work safety risks.

[0060] Other aspects of the auxiliary device for limiting anti-roll torsion bars described in this utility model are available in the prior art and will not be repeated here.

[0061] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. An auxiliary device for limiting an anti-roll torsion bar, characterized in that, The device includes a first limiting component and a second limiting member. The first limiting component includes a main body, an abutment, and a clamping member. The main body is disposed at the position where the lower ball head connects to the torsion bar. The abutment is disposed in the main body, with one side abutting against the lower ball head to limit the lower ball head of the anti-roll torsion bar. The clamping member is disposed on the main body, with one end abutting against the abutment. The second limiting member is disposed in the clearance between the upper ball head and the mounting base to limit the upper ball head of the anti-roll torsion bar.

2. The auxiliary device for limiting an anti-roll torsion bar according to claim 1, characterized in that, The first limiting component further includes a positioning element; the abutting element is disposed on the main body through the positioning element.

3. The auxiliary device for limiting an anti-roll torsion bar according to claim 2, characterized in that, The main body is a ring with an opening; the ring has a through groove and a hook head; the ring is positioned at the lower ball head and the torsion bar connection point via the through groove and the hook head.

4. The auxiliary device for limiting an anti-roll torsion bar according to claim 3, characterized in that, The thickness of the ring is at least 20 mm.

5. The auxiliary device for limiting an anti-roll torsion bar according to claim 3, characterized in that, The ring has a first threaded hole on its cross arm; the clamping member is a first bolt of a set length; the first bolt is threadedly connected to the first threaded hole, and the end of the first bolt can abut against one side of the abutting member.

6. The auxiliary device for limiting an anti-roll torsion bar according to claim 5, characterized in that, The abutting member is an abutting block; the abutting block is arranged in the through groove, and the abutting block is connected to the ring member through the positioning member; one side of the abutting block is used to abut against the lower ball head.

7. The auxiliary device for limiting an anti-roll torsion bar according to claim 6, characterized in that, The abutment block is a circular abutment block or a polygonal abutment block.

8. The auxiliary device for limiting an anti-roll torsion bar according to claim 6, characterized in that, The abutment block is provided with a second threaded hole; the cross arm of the ring is also provided with a through hole; the positioning element is a second bolt of a set length; the second bolt passes through the through hole and is threadedly connected to the second threaded hole.

9. An auxiliary device for limiting an anti-roll torsion bar according to any one of claims 1 to 8, characterized in that, The second limiting member is a limiting block; the limiting block has an abutting portion for abutting against the mounting base and a first groove for abutting against the upper ball head.

10. An auxiliary device for limiting an anti-roll torsion bar according to claim 9, characterized in that, The limiting block also has a second groove for abutting against the spherical bearing; the second groove is disposed adjacent to the first groove.

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