Anti-loosening assembly and motor height adjusting device

By designing anti-loosening components, the problem of easy loosening of the lock guard plate was solved, and a stable connection of the motor height adjustment device was achieved, ensuring the safe operation of the train and avoiding the risk of loosening and falling off of components.

CN223578493UActive Publication Date: 2025-11-21GUANGZHOU METRO GRP CO LTD
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Patent Information

Application Number
CN202520434170.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-12
Publication Date
2025-11-21
Estimated Expiration
2035-03-12

AI Technical Summary

Technical Problem

In the existing technology, the locking plate of the motor height adjustment device of the BM3000 bogie is prone to loosening due to vibration, which can lead to loosening, failure, breakage and detachment of parts, endangering driving safety. There is a lack of effective anti-loosening components and devices.

Method used

An anti-loosening component was designed, including a locking plate and a locking guard plate. The symmetrically arranged mounting holes and pressure plate enhance the connection stability of the fixing studs. Combined with the locking nut and fastening component, the locking guard plate and locking plate are prevented from loosening.

Benefits of technology

This effectively prevents unnecessary loosening of the motor height adjustment device, ensures the stability of the air gap between the motor and the induction plate, avoids the train operation hazards caused by the loosening of the traditional locking plate, improves the anti-loosening capability of the motor height adjustment device, and ensures the safe operation of the train.

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Abstract

The utility model discloses an anti-loosening assembly and a motor height adjusting device. The anti-loosening assembly comprises a locking plate and a locking protection plate. The locking plate is provided with a first through hole, and the adjusting sleeve can pass through the first through hole; a plurality of first mounting holes are symmetrically formed in the locking plate, and the fixing studs can pass through the first mounting holes; a second through hole is formed in the lock protection plate and is used for limiting the locking nut; a plurality of second mounting holes are symmetrically formed in the lock protection plate, and the second mounting holes are used for allowing the fixing studs to pass through; pressing plate parts are symmetrically arranged on the bottom face of the lock protection plate and used for being connected with the locking plate in an abutting mode. The anti-loosening assembly can effectively solve the problem that a traditional lock protection plate is prone to causing loosening of components of a motor height adjusting device. The motor height adjusting device provided by the utility model is provided with the novel anti-loosening assembly, so that the anti-loosening capability of the motor height adjusting device is improved, and unnecessary loosening of the motor height adjusting device is effectively avoided.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the linear motor train technical field, concretely relates to a anti-loose assembly and motor height adjusting device. BACKGROUND

[0002] The L2 type car of No. five line adopts BM3000 type bogie imported from Pombain. There are four motor height adjusting devices on the BM3000 type bogie, and a train has a total of forty-eight motor height adjusting devices. The motor height adjusting device is mainly composed of adjusting sleeve, spring sleeve, ball hinge assembly and fastening assembly, when the motor naturally drops due to wheel set wear and rubber creep, the motor height is adjusted through the device, and the air gap between the linear motor and the induction plate is kept at a relatively stable value. The lock protection plate of the motor height adjusting device on the BM3000 type bogie adopts the mode of unilateral bias cooperation and fixation, in this way, the train operation appears vibration, the lock protection plate is easy to vibrate intensively, and finally the lock protection plate is easy to loosen, and once the lock protection plate loosens, it will easily lead to the loosening, failure, fracture and component shedding of each part of the motor height adjusting device, and finally lead to the sinking of the linear motor, the scraping of the induction plate and the harm to the train operation safety.

[0003] At present, there is lack of an anti-loose assembly to solve the problem that the traditional lock protection plate easily leads to the loosening of the motor height adjusting device. At present, there is also lack of a motor height adjusting device with a new type of anti-loose assembly to improve the anti-loose ability of the motor height adjusting device and effectively avoid unnecessary loosening of the motor height adjusting device.

[0004] Therefore, a new technology is needed to solve the problem that there is lack of a new type of anti-loose assembly in the prior art, and a new technology is needed to solve the problem that there is lack of a motor height adjusting device with a new type of anti-loose assembly in the prior art. UTILITY MODEL CONTENTS

[0005] To solve the above problems in the prior art, the utility model provides an anti-loose assembly, which can effectively solve the problem that the traditional lock protection plate easily leads to the loosening of the motor height adjusting device, and can ensure the safe operation of the train.

[0006] The utility model adopts the following technical solutions:

[0007] The anti-loose assembly comprises a locking plate and a locking guard plate; the locking plate is provided with a first through hole for passing an adjusting sleeve; a plurality of first mounting holes are symmetrically arranged on the locking plate and used for passing fixing studs; the locking guard plate is provided with a second through hole for limiting a locking nut; a plurality of second mounting holes are symmetrically arranged on the locking guard plate and used for passing fixing studs; and a pressing plate part is symmetrically arranged on the bottom surface of the locking guard plate and used for abutting against the locking plate.

[0008] Further, the first mounting holes are two, and the two first mounting holes are symmetrically arranged on the locking plate.

[0009] Further, the first mounting holes are circular holes.

[0010] Further, a plurality of limiting convex parts are symmetrically arranged on the first through hole and used for limiting a spring sleeve or an adjusting sleeve.

[0011] Further, the limiting convex parts are two, and the two limiting convex parts are symmetrically arranged on the first through hole.

[0012] Further, the second mounting holes are two, and the two second mounting holes are symmetrically arranged on the locking guard plate.

[0013] Further, the second mounting holes are curved long circular holes.

[0014] Further, the second through hole is a hexagonal hole.

[0015] Another purpose of the utility model lies in providing a motor height adjusting device to improve the anti-loose ability of the motor height adjusting device and effectively avoid unnecessary loosening of the motor height adjusting device.

[0016] A motor height adjusting device comprises a ball hinge assembly, a spring sleeve, an adjusting sleeve, a double-headed stud, a first fastening assembly, a locking nut, a fixing stud, a second fastening assembly and the anti-loose assembly.

[0017] The ball hinge assembly is provided with a third through hole.

[0018] The spring sleeve is detachably arranged in the third through hole.

[0019] The adjusting sleeve is detachably connected with the spring sleeve.

[0020] The double-headed stud is detachably connected with the shaft box at the first end and is arranged through the adjusting sleeve at the second end.

[0021] The first fastening assembly is detachably arranged at the second end of the stud bolt, and is used for limiting the stud bolt from being separated from the adjusting sleeve;

[0022] The fixing stud is detachably arranged on the ball hinge assembly;

[0023] The locking plate is sleeved on the adjusting sleeve and the fixing stud, and is in surface contact with the ball hinge assembly;

[0024] The locking nut is detachably arranged on the adjusting sleeve;

[0025] The locking plate is sleeved on the locking nut and the fixing stud, and the pressing plate portion is in abutment with the locking plate;

[0026] The second fastening assembly is detachably arranged on the fixing stud, and is used for limiting the locking plate from being separated from the fixing stud.

[0027] Further, the locking plate is sleeved on the adjusting sleeve through the first through hole, and the locking plate is sleeved on the fixing stud through the first mounting hole;

[0028] The locking plate is sleeved on the locking nut through the second through hole, and the locking plate is sleeved on the fixing stud through the second mounting hole.

[0029] Compared with the prior art, the anti-loosening assembly has the advantages that:

[0030] The anti-loosening assembly has the first mounting hole symmetrically arranged on the locking plate, the first mounting hole can better allow the fixing stud to pass through, and the locking plate can be better assembled at the arranged position of the motor height adjusting device; meanwhile, the locking plate also has the second mounting hole symmetrically arranged, the second mounting hole can better allow the fixing stud to pass through, and the problem that the traditional locking plate is prone to loosening after vibration is effectively avoided; meanwhile, the newly designed locking plate also has the pressing plate portion symmetrically arranged, after the locking plate and the locking plate are assembled and fixed on the motor height adjusting device, the pressing plate portion of the locking plate can press one side of the locking plate, and the locking plate is more conducive to avoiding loosening.

[0031] The anti-loosening assembly has the first mounting hole symmetrically arranged on the locking plate, the first mounting hole can better allow the fixing stud to pass through, and the locking plate can be better assembled at the arranged position of the motor height adjusting device; meanwhile, the locking plate also has the second mounting hole symmetrically arranged, the second mounting hole can better allow the fixing stud to pass through, and the problem that the traditional locking plate is prone to loosening after vibration is effectively avoided; meanwhile, the newly designed locking plate also has the pressing plate portion symmetrically arranged, after the locking plate and the locking plate are assembled and fixed on the motor height adjusting device, the pressing plate portion of the locking plate can press one side of the locking plate, and the locking plate is more conducive to avoiding loosening.

[0032] The utility model discloses a motor height adjusting device, it has novel anti -loose subassembly, and the locking plate, lock guard board fixed after, it is difficult to be affected by the bias and take place loosening, has improved the anti -loose ability of motor height adjusting device, has effectively avoided the unnecessary loosening of motor height adjusting device. BRIEF DESCRIPTION OF DRAWINGS

[0033] The utility model discloses a motor height adjusting device, it has novel anti -loose subassembly, and the locking plate, lock guard board fixed after, it is difficult to be affected by the bias and take place loosening, has improved the anti -loose ability of motor height adjusting device, has effectively avoided the unnecessary loosening of motor height adjusting device.

[0034] Figure 1 It is the three -dimensional schematic diagram that motor height adjusting device has novel anti -loose subassembly;

[0035] Figure 2 It is Figure 1 It is the three -dimensional schematic diagram of another perspective (not showing the thread of double -end stud first end);

[0036] Figure 3 It is Figure 1 It is the explosion drawing of motor height adjusting device.

[0037] Reference signs:

[0038] 1-anti -loose subassembly;11-locking plate;111-first through -hole;112-first mounting hole;113-limit convex part;12-lock guard board;121-second through -hole;122-second mounting hole;123-pressing plate portion;

[0039] 2-motor height adjusting device;21-ball hinge subassembly;211-first ball hinge;212-second ball hinge;C-ring vacancy;22-adjusting sleeve;23-double -end stud;D-second end;24-first fastening subassembly;241-first nut;242-first screw part;25-locking nut;251-hexagon nut;252-pad;26-fixing stud;27-second fastening subassembly;271-first fastener;A-second nut;B-second screw part;272-washer. DETAILED DESCRIPTION

[0040] The utility model discloses a motor height adjusting device, it has novel anti -loose subassembly, and the locking plate, lock guard board fixed after, it is difficult to be affected by the bias and take place loosening, has improved the anti -loose ability of motor height adjusting device, has effectively avoided the unnecessary loosening of motor height adjusting device.

[0041] It should be noted that, unless otherwise specified, when a certain feature is referred to as being "fixed", "connected" to another feature, it can be directly fixed, connected to the other feature, or indirectly fixed, connected to the other feature. In addition, the up, down, left, right and other descriptions used in the utility model are only relative to the mutual positional relationship of the components of the utility model in the drawings.

[0042] Referring to Figures 1 to 3 A locking assembly 1, comprising a locking plate 11 and a locking guard plate 12; the locking plate 11 has a first through hole 111, which can be used for the adjusting sleeve 22 to pass through; a plurality of first mounting holes 112 are symmetrically arranged on the locking plate 11, and the first mounting holes 112 are used for the fixing stud 26 to pass through; the locking guard plate 12 has a second through hole 121, which is used for limiting the locking nut 25; a plurality of second mounting holes 122 are symmetrically arranged on the locking guard plate 12, and the second mounting holes 122 are used for the fixing stud 26 to pass through; the bottom surface of the locking guard plate 12 is symmetrically provided with a pressing plate part 123, which is used for abutting against the locking plate 11.

[0043] Referring to Figures 1 to 3 In one embodiment, the locking plate 11 is a circular outer contour locking plate.

[0044] Referring to Figures 1 to 3 In one embodiment, the first mounting hole 112 is provided with two, and the two first mounting holes 112 are symmetrically arranged on the locking plate 11. Preferably, the centers of the two first mounting holes 112 are on the same straight line, and the straight line passes through the center of the first through hole 111.

[0045] Referring to Figures 1 to 3 In one embodiment, the first mounting hole 112 is a circular hole; the circular hole is slightly larger than the normal cross-sectional diameter of the fixing stud 26, so as to ensure that the circular hole can pass through the fixing stud 26.

[0046] Referring to Figures 1 to 3 In one embodiment, a plurality of limiting convex parts 113 are symmetrically arranged on the first through hole 111, and the limiting convex parts 113 are used for limiting the spring sleeve or the adjusting sleeve.

[0047] Referring to Figures 1 to 3 In one embodiment, the limiting convex part 113 is provided with two, and the two limiting convex parts 113 are symmetrically arranged on the first through hole 111.

[0048] Referring to Figures 1 to 3In one embodiment, the second mounting hole 122 is provided with two, two of the second mounting hole 122 is symmetrically arranged on the lock guard plate 12.

[0049] Referring to Figures 1 to 3 In one embodiment, the second mounting hole 122 is a curved long circular hole, which is "curved arc" in plan view.

[0050] Referring to Figures 1 to 3 In one embodiment, the pressing plate portion 123 is integrally formed with the lock guard plate 12. The presence of the pressing plate portion 123 allows the distance sleeve under the lock guard plate of the motor height adjusting device to be cancelled, further reducing the possibility of loosening of the motor height adjusting device components.

[0051] Referring to Figures 1 to 3 In one embodiment, the second through hole 121 is a hexagonal hole; the hexagonal hole is "regular hexagon" in plan view, which can be used to limit the hexagonal lock nut 25. At this time, the hexagonal lock nut 25 is sleeved in the hexagonal hole and is limited by the hexagonal hole, which can prevent the lock nut 25 from rotating by itself.

[0052] Another purpose of the utility model is to provide a motor height adjusting device to improve the anti-loosening ability of the motor height adjusting device and effectively avoid unnecessary loosening of the motor height adjusting device.

[0053] Referring to Figures 1 to 3 A motor height adjusting device 2 comprises a ball hinge assembly 21, a spring sleeve, an adjusting sleeve 22, a double-headed stud 23, a first fastening assembly 24, a lock nut 25, a fixed stud 26, a second fastening assembly 27 and the anti-loosening assembly 1.

[0054] The ball hinge assembly 21 has a third through hole;

[0055] The spring sleeve is detachably arranged in the third through hole;

[0056] The adjusting sleeve 22 is detachably connected with the spring sleeve;

[0057] The first end of the double-headed stud 23 can be detachably connected with the shaft box, and the second end D can pass through the adjusting sleeve 22; wherein the connection between the double-headed stud 23 and the shaft box can refer to the prior art;

[0058] The first fastening assembly 24 is detachably arranged at the second end D of the double-headed stud 23, and is used for limiting the double-headed stud 23 from being separated from the adjusting sleeve 22;

[0059] The fixed stud 26 is detachably arranged on the ball hinge assembly 21;

[0060] The locking plate 11 is sleeved on the adjusting sleeve 22 and the fixing stud 26, and is in surface contact with the ball joint assembly 21.

[0061] The locking nut 25 is detachably mounted on the adjusting sleeve 22;

[0062] The locking plate 12 is sleeved on the locking nut 25 and the fixing stud 26, and the pressure plate 123 abuts against the locking plate 11;

[0063] The second fastening component 27 is detachably mounted on the fixing stud 26 to prevent the locking plate 12 from disengaging from the fixing stud 26.

[0064] Reference Figures 1 to 3 In one embodiment, the locking plate 11 is sleeved on the adjusting sleeve 22 through the first through hole 111, and the locking plate 11 is sleeved on the fixing stud 26 through the first mounting hole 112;

[0065] The lock guard plate 12 is sleeved on the lock nut 25 through the second through hole 121, and the lock guard plate 12 is sleeved on the fixing stud 26 through the second mounting hole 122.

[0066] Reference Figures 1 to 3 In one embodiment, the first fastening assembly 24 includes a first nut 241 and a first helical component 242, which are combined together to prevent the double-ended stud 23 from disengaging from the adjusting sleeve 22.

[0067] Reference Figures 1 to 3 In one embodiment, the second fastening assembly 27 includes a first fastener 271 and a washer 272; the first fastener 271 can be threaded onto the fixing stud 26 to prevent the locking plate 12 from disengaging from the fixing stud 26; the washer 272 can be fitted into the fixing stud 26 and can be positioned between the first fastener 271 and the locking plate 12.

[0068] Reference Figures 1 to 3 In one embodiment, the first fastener 271 is composed of a second nut A and a second helical component B.

[0069] Reference Figures 1 to 3 In one embodiment, the locking nut 25 is composed of a hexagonal nut 251 and a washer 252; after the locking nut 25 is assembled, the hexagonal nut 251 is threadedly connected to the adjusting sleeve 22, and the washer 252 is pressed on the locking plate 11.

[0070] In one embodiment, the linear motor is fixed on a vertical hanger, the vertical hanger is suspended on a suspension beam, and each end of the suspension beam is provided with a mounting cylinder (the linear motor, the vertical hanger, the suspension beam and the mounting cylinder can be referred to the prior art);

[0071] Referring to Figures 1 to 3 The ball hinge assembly 21 comprises a first ball hinge 211 and a second ball hinge 212, and has an annular gap C between the first ball hinge 211 and the second ball hinge 212; the annular gap C is used for being fixed in the mounting cylinder; the third through hole is in communication with the first ball hinge 211 and the second ball hinge 212.

[0072] In one embodiment, two positioning holes are symmetrically arranged on the first ball hinge 211, and one end of the fixing stud 26 is detachably connected with the positioning hole, such as threaded connection. Figures 1 to 3 After the fixing stud 26 is assembled, two positions are provided.

[0073] In one embodiment, the spring sleeve is detachably fixed in the third through hole through a stopper Figures 1 to 3 There is no "spring sleeve", and the spring sleeve and the stopper can be referred to the prior art.

[0074] The remaining components of the motor height adjusting device mentioned in the utility model and the connection can be referred to the prior art, and will not be described here.

[0075] In one embodiment, the adjusting sleeve 22 is in threaded connection with the spring sleeve (which can be referred to the prior art); when the motor height adjusting device 2 is not assembled as a whole, the "threaded rotation" between the adjusting sleeve 22 and the spring sleeve is not limited, at this time, the threaded connection position of the adjusting sleeve 22 and the spring sleeve is rotated to obtain an "adjustment amount", and finally the height value of the linear motor installed on the vertical hanger can be adjusted, so that the air gap between the linear motor and the induction plate can be kept at a relatively stable value.

[0076] Referring to Figures 1 to 3 Figures 1 to 3 In one embodiment, the assembly method of the motor height adjusting device 2 comprises the following steps:

[0077] S1, the first end of the stud bolt 23 is fixed on the shaft box;

[0078] S2, the ball hinge assembly 21, the spring sleeve and the adjusting sleeve 22 are assembled together to form a first combination;

[0079] S3, the adjusting sleeve 22 in the first combination is passed through the second end D of the stud bolt 23, and then the first fastening assembly 24 is installed on the second end D of the stud bolt 23, and the first fastening assembly 24 is used for preventing the rotation of the adjusting sleeve 22.

[0080] S4, install two fixing studs 26 on the positioning holes of the first spherical hinge 211 of the spherical hinge assembly 21;

[0081] S5, assemble the newly designed locking plate 11 into the adjusting sleeve 22 and the fixing stud 26, wherein the locking plate 11 is used for preventing the spring sleeve from rotating;

[0082] S6, install the locking nut 25 on the adjusting sleeve 22, wherein the locking nut 25 is used for preventing the adjusting sleeve 22 from rotating;

[0083] S7, assemble the newly designed locking protection plate 12 into the locking nut 25 and the fixing stud 26, wherein the locking protection plate 12 is used for preventing the locking nut 25 from rotating;

[0084] S8, install the second fastening assembly 27 on the fixing stud 26, limit the locking protection plate 12 from being separated from the locking nut 25 and the fixing stud 26, and make the pressing plate part 123 of the locking protection plate 12 press the locking plate 11, wherein the second fastening assembly 27 can prevent the locking protection plate 12 from rotating.

[0085] The newly designed motor height adjusting device 2 has the newly designed anti-loosening assembly 1, the anti-loosening ability of the motor height adjusting device is improved, and unnecessary loosening of the motor height adjusting device 2 is effectively avoided. The stability of the motor height adjusting device 2 ensures the relative stability of the air gap between the linear motor and the induction plate, effectively avoids the hidden trouble problem caused by the easy loosening of the traditional locking protection plate offset fixation, effectively avoids the loosening, failure, fracture and component shedding of the motor height adjusting device components, effectively avoids the sinking of the linear motor caused by the loosening of the traditional locking protection plate, and ensures the safe operation of the train.

[0086] The other contents of the anti-loosening assembly and the motor height adjusting device are the same as those of the prior art, and will not be repeated here.

[0087] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form, so any modification, equivalent change and modification of the above embodiment according to the technical essence of the utility model, which does not deviate from the technical solution content of the utility model, still belongs to the scope of the technical solution of the utility model.

Claims

1. A lockout assembly, comprising: The locking plate has a first through hole which can be used for the adjusting sleeve to pass through; a plurality of first mounting holes are symmetrically arranged on the locking plate, and the first mounting holes are used for the fixing stud to pass through; the locking guard plate has a second through hole which is used for limiting the locking nut; a plurality of second mounting holes are symmetrically arranged on the locking guard plate, and the second mounting holes are used for the fixing stud to pass through; and a pressing plate part is symmetrically arranged on the bottom surface of the locking guard plate, and the pressing plate part is used for abutting against the locking plate.

2. A lock washer assembly as defined in claim 1, wherein, The first mounting hole is provided with two first mounting holes which are symmetrically arranged on the locking plate.

3. A lock washer assembly as defined in claim 1, wherein: The first mounting hole is a circular hole.

4. A lock washer assembly as defined in claim 1, wherein: A plurality of limiting convex parts are symmetrically arranged on the first through hole, and the limiting convex parts are used for limiting the spring sleeve or the adjusting sleeve.

5. A lock washer assembly as defined in claim 4, wherein: The limiting convex part is provided with two limiting convex parts which are symmetrically arranged on the first through hole.

6. A lock assembly according to any one of claims 1 to 5, wherein, The second mounting hole is provided with two second mounting holes which are symmetrically arranged on the locking guard plate.

7. A lock washer assembly as defined in claim 6, wherein, The second mounting hole is a curved long circular hole.

8. A lock washer assembly as defined in claim 6, wherein: The second through hole is a hexagonal hole.

9. An electric motor height adjustment device, characterized by, The ball hinge assembly, the spring sleeve, the adjusting sleeve, the double-headed stud, the first fastening assembly, the locking nut, the fixing stud, the second fastening assembly and the anti-loosening assembly of any one of claims 1 to 8 are included. The ball hinge assembly has a third through hole. The spring sleeve is detachably arranged in the third through hole. The adjusting sleeve is detachably connected with the spring sleeve. The double-headed stud is detachably connected with the shaft box at the first end, and the second end can pass through the adjusting sleeve. The first fastening assembly is detachably arranged at the second end of the double-headed stud, and is used for limiting the double-headed stud from being separated from the adjusting sleeve. The fixing stud is detachably arranged on the ball hinge assembly. The locking plate is sleeved on the adjusting sleeve, the fixing stud and in surface contact with the ball hinge assembly. The locking nut is detachably arranged on the adjusting sleeve. The locking guard plate is sleeved on the locking nut and the fixing stud, and the pressing plate part abuts against the locking plate. The second fastening assembly is detachably arranged on the fixing stud, and is used for limiting the locking guard plate from being separated from the fixing stud.

10. A motor height adjustment device according to claim 9, wherein The locking plate is sleeved on the adjusting sleeve through the first through hole, and is sleeved on the fixing stud through the first mounting hole. The locking guard plate is sleeved on the locking nut through the second through hole, and is sleeved on the fixing stud through the second mounting hole.