Anti-jumping and shock-proof wheel device of gear box

Abstract

The utility model provides an anti-bounce shock-proof wheel device of a gear box, which comprises a support module, a U-shaped subunit arranged on the support module, and an anti-bounce shock-proof wheel arranged on the U-shaped subunit, the U-shaped subunit is matched with the diameter of a fixing screw hole of a suspension rod of the gear box for installation, and an anti-bounce shock-proof wheel arranged on the U-shaped subunit and matched with the diameter of the fixing screw hole of the suspension rod of the gear box for installation. The guiding and positioning module is arranged at the lower end of the supporting module; the shock absorption module comprises a spring, and the spring is arranged at the upper end of the guiding and positioning module; and the rolling module comprises a pulley, and the pulley is arranged at the lower end of the guiding and positioning module. The problems that a small supporting wheel jumps and threads of a mounting hole of a suspension rod of a gear box are prone to damage are solved, and the stability and durability of a tool are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rail gear box equipment, and more specifically to an anti-jump and shock-absorbing wheel device for a gear box. Background Art

[0002] At subway train maintenance bases, underground vehicle hoists are key equipment, responsible for lifting train bodies and bogies for inspection and maintenance. This technical design fully utilizes underground space, minimizes the impact of surface operations, and improves maintenance efficiency and safety. Specifically for the replacement of moving wheel assemblies, the underground vehicle hoist, combined with specialized tooling, enables precise removal and installation of gearboxes on moving wheel assemblies.

[0003] Although underground car lifting machines and their supporting tooling have played an important role in the maintenance of Shanghai Metro train vehicles, there are technical defects in the process of moving the moving wheel sets. First, the uneven ground has become a key factor restricting the efficiency and safety of maintenance operations. When the tooling attempts to push the moving wheel set assembly on an uneven ground, it is very easy for safety hazards such as the supporting small wheel jumping, the tooling falling off, and even the gearbox hitting the ground to occur. This not only increases the difficulty and risk of operation for maintenance personnel, but may also cause unnecessary damage to equipment and vehicles. Secondly, the design of the original tooling also has certain limitations. For example, the direct contact between the top of the light rod and the mounting hole of the gearbox boom can easily cause thread damage, affecting the durability and reliability of the tooling. Therefore, improving and optimizing these technical defects is an important direction for improving the efficiency and safety of Shanghai Metro train vehicle maintenance. Utility Model Content

[0004] The utility model provides a gear box anti-jump and shock-absorbing wheel device, which aims to solve the problems of small supporting wheel jumping and easy damage of the gear box boom mounting hole thread, and improve the stability and durability of the tooling.

[0005] To achieve the above-mentioned purpose, the present invention provides a gear box anti-jump and shock-absorbing wheel device, comprising:

[0006] A support module, wherein the support module is provided with a support assembly, wherein the support assembly is provided with a U-shaped subunit, wherein the U-shaped subunit is placed on the support assembly, and the diameter of the fixing screw hole of the gearbox boom is matched for installation;

[0007] A guide and positioning module, the guide and positioning module is placed at the lower end of the support module;

[0008] A shock-absorbing module, the shock-absorbing module comprising a spring, the spring being placed on the upper end of the guide and positioning module;

[0009] The rolling module includes a pulley, and the pulley is placed at the lower end of the guide and positioning module.

[0010] In one embodiment, the support assembly includes a first support plate, a second support plate, and a third support plate, wherein the first support plate includes a U-shaped groove, and the U-shaped groove is paired with the U-shaped subunit.

[0011] In one embodiment, the U-shaped subunit is a U-shaped pad, and the U-shaped pad is provided with a receiving hole.

[0012] In one embodiment, the guiding and positioning module includes a guiding and positioning plate and a positioning catheter, and the positioning catheter passes through the guiding and positioning plate and is connected to the third support plate.

[0013] In one embodiment, a positioning guide pin is provided at the bottom of the third support plate, and the positioning guide pin is inserted into the positioning guide tube of the guiding positioning plate, and the positioning guide pin has the same length as the positioning guide tube.

[0014] In one embodiment, the third support plate is provided with a first spring positioning and mounting hole, the guide positioning plate is provided with a second spring positioning and mounting hole, and the spring is placed between the first spring positioning and mounting hole and the second spring positioning and mounting hole by a positioning screw.

[0015] In one embodiment, the rolling module further comprises a caster base plate, the caster base plate is provided with a first fixing hole, and the guide positioning plate is provided with a corresponding second fixing hole, so that the rolling module is mounted to the lower end of the guide positioning plate.

[0016] In one embodiment, the pulley is 0.2 meters long and is a wide-body directional polyurethane caster.

[0017] In one embodiment, four springs are provided.

[0018] In one embodiment, the U-shaped groove is installed by matching the diameter of the gear box boom fixing screw hole with an M20 bolt with an M8 bolt head, and the M20 bolt with the M8 bolt head includes an M20 hexagonal bolt and an M8*20 hexagonal bolt, and the M20 hexagonal bolt is provided with an M8*15 hole, and the M8*20 hexagonal bolt is fixed in the M8*15 hole.

[0019] The utility model has the following beneficial effects:

[0020] 1. Simplified operation process: This device allows maintenance personnel to directly install it into the mounting threaded hole of the gear box boom when the underground car lift is in a high position, and then lower the underground car lift to the ground. This improvement greatly simplifies the operation process and reduces the time and difficulty of maintenance personnel to drill under the car to operate.

[0021] 2. Enhanced stability and reliability: This device has a shock-absorbing function by setting a spring. It can effectively absorb the impact caused by uneven ground during the movement of the gearbox, ensure the stable connection between the tooling and the gearbox, and prevent the tooling from falling off or the gearbox from being damaged due to vibration.

[0022] 3. Protective equipment: This device reduces direct hard contact between the tooling and the gearbox boom mounting threaded holes by setting U-shaped pads and avoids the welding parts at the inner edge. It effectively avoids the problem of thread damage caused by the tilted screwing of bolts when the contact surface of the original tooling is uneven, thereby extending the service life of the gearbox and its related components. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural diagram of a gear box anti-jump and shock-absorbing wheel device according to an embodiment of the present invention;

[0024] Figure 2 This is a structural schematic diagram of a U-shaped pad of a gear box anti-jump and shock-absorbing wheel device according to an embodiment of the present invention;

[0025] Figure 3 This is a structural schematic diagram of a support module of a gear box anti-jump and shock-absorbing wheel device according to an embodiment of the present invention;

[0026] Figure 4 This is a structural schematic diagram of a guide positioning plate of a gear box anti-jump and shock-absorbing wheel device according to an embodiment of the present invention;

[0027] Figure 5 This is a structural schematic diagram of the roller module of the gear box anti-jump and shock-absorbing wheel device according to one embodiment of the present invention.

[0028] Among them, 1 is a U-shaped pad; 11 is a storage hole; 2 is a support module; 21 is a first support plate; 212 is a U-shaped groove; 22 is a second support plate; 23 is a third support plate; 24 is a positioning guide pin; 3 is a guide positioning plate; 31 is a second fixing hole; 32 is a second spring positioning mounting hole; 33 is a positioning guide tube; 4 is a pulley; 5 is an M24 bolt with an M8 bolt head; 6 is an M20 bolt with an M8 bolt head; 7 is a spring; 8 is a positioning screw; 9 is a fixing screw; 10 is a third spring positioning mounting hole; 12 is a first fixing hole. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the implementation of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below in conjunction with the drawings in the embodiments of this application. In the drawings, the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions. The described embodiments are part of the embodiments of this application, not all of the embodiments. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain this application, and should not be understood as limitations on this application. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0030] Figure 1 This is a structural diagram of a gearbox anti-jumping and shock-absorbing wheel device according to an embodiment of the present invention, wherein the gearbox anti-jumping and shock-absorbing wheel device comprises:

[0031] Support module 2, wherein the support module 2 is provided with a support assembly, and the support assembly is provided with a U-shaped subunit, the U-shaped subunit is placed on the support assembly, and the U-shaped subunit is installed to match the diameter of the fixing screw hole of the gearbox boom;

[0032] A guide and positioning module, which is placed at the lower end of the support module 2;

[0033] A shock-absorbing module, the shock-absorbing module comprising a spring 7, the spring 7 being placed on the upper end of the guide and positioning module;

[0034] The rolling module includes a pulley 4, and the pulley 4 is placed at the lower end of the guide and positioning module.

[0035] In one embodiment, Figure 3 As shown, the support assembly includes a first support plate 21, a second support plate 22 and a third support plate 23. The first support plate 21 includes a U-shaped groove 212, and the U-shaped groove 212 is paired with a U-shaped subunit.

[0036] Specifically, the upper plane of the first support plate 21 is used to support the plane of the gear box boom mounting hole. The bolts are selected according to the diameter of the gear box boom mounting threaded hole. The bolts can be two M20 bolts 6 with M8 bolt heads or M24 bolts 5 with M8 bolt heads. Select M20 bolts or M24 bolts, and then screw them into the gear box boom mounting threaded hole through the U-shaped groove 212 and the U-shaped pad 1.

[0037] The second support plate 22 is used to connect the first support plate 21 and the third support plate 23. Its height depends on the distance between the lower plane of the first fixing hole of the gearbox boom and the upper surface of the rail when the wheel assembly is replaced and the wheel diameter is close to 770 mm.

[0038] In one embodiment, Figure 2 As shown, the U-shaped subunit is a U-shaped pad 1 , and the U-shaped pad 1 is provided with a receiving hole 11 .

[0039] Specifically, some vehicle models have arc-shaped welds on the inner side of the plane of the gearbox boom mounting hole, which interferes with the inner side of the upper plane of the first support plate 21. If a U-shaped pad 1 is used, when interference occurs, it is inserted through the U-shaped groove 212 and placed between the plane of the gearbox boom mounting hole and the upper plane of the first support plate 21 to avoid the arc-shaped welds.

[0040] Furthermore, a receiving hole 11 is also provided on the first support plate 21 .

[0041] In one embodiment, Figure 4 As shown, the guiding and positioning module includes a guiding and positioning plate 3 and a positioning conduit 33 . The positioning conduit 33 passes through the guiding and positioning plate 3 and is connected to the third support plate 23 .

[0042] In one embodiment, a positioning guide pin 24 is provided at the bottom of the third support plate 23 , and the positioning guide pin 24 is inserted into the positioning conduit 33 of the guide positioning plate 3 . The positioning guide pin 24 has the same length as the positioning conduit 33 .

[0043] In one embodiment, the third support plate 23 is provided with a first spring positioning mounting hole, the guide positioning plate 3 is provided with a second spring positioning mounting hole 32, and the spring 7 is placed between the first spring positioning mounting hole and the second spring positioning mounting hole 32 through a positioning screw 8.

[0044] Specifically, the top of the third support plate 23 can be provided with four first spring positioning mounting holes, and its bottom can be provided with two positioning guide pins 24. The positioning guide pins 24 are inserted into the two positioning guides 33 on the guide positioning plate 3 using a clearance fit. The positioning guide pins 24 and the positioning guides 33 are the same length. When the spring 7 is in the free state, a 10 mm buffer distance is maintained between the third support plate 23 of the support module 2 and the guide positioning plate 3.

[0045] In one embodiment, the rolling module also includes a caster base, which is provided with a first fixing hole 12 and a third spring positioning installation hole 10, and the guide positioning plate 3 is provided with a second fixing hole 31 corresponding to the first fixing hole 12, so that the rolling module is installed to the lower end of the guide positioning plate 3.

[0046] In one embodiment, Figure 5As shown, the caster base can be provided with two caster mounting holes in the middle, which are fastened to the 6-inch wide, directional polyurethane caster using two sets of caster fixing screws 9. The two caster mounting holes are perpendicular to the two positioning guides 33, ensuring that the wheels are fully supported when impacted by uneven ground surfaces. Four third spring positioning holes 10 can be provided at the four corners of the caster base, which mate with the four first spring positioning holes of the third support plate 23 for installing spring positioning screws 8.

[0047] In one embodiment, the pulley 4 is 0.2 meters long and is a wide-body directional polyurethane caster.

[0048] In one embodiment, four springs 7 are provided.

[0049] In one embodiment, the U-shaped groove is installed by matching the diameter of the gear box boom fixing screw hole with an M20 bolt 6 with an M8 bolt head. The M20 bolt with the M8 bolt head includes an M20 hexagonal bolt and an M8*20 hexagonal bolt. The M20 hexagonal bolt head is provided with an M8*15 hole, and the M8*20 hexagonal bolt is fixed in the M8*15 hole.

[0050] Regarding the use of M20 bolt 6 with an M8 head: Due to the limited space around the threaded hole for the gearbox boom fixing screw, and the M20 bolt requiring only moderate tightening, an M8*15 hole is created in the center of the M20 hexagonal bolt head to improve tightening efficiency and ease of operation. An M8*20 hexagonal bolt is inserted into the hole and then welded to a 5mm gap. This allows for easy operation with an M8 socket wrench. The M20 bolt length ensures that it can be screwed at least 20mm into the fixing hole of the gearbox boom.

[0051] When in use, the thread of the M20 bolt is passed from bottom to top through the U-shaped groove 212 on the first support plate 21 of the support module 2, and then screwed into the gear box boom mounting threaded hole, and the M20 bolt is tightened with the M8 hexagonal bolt head.

[0052] If an M24 bolt 5 with an M8 bolt head is selected, the method of use is the same as the method of use of an M20 bolt 6 with an M8 bolt head.

[0053] Furthermore, the inner diameter of the spring 7 is selected according to the diameters of the first spring positioning and mounting hole and the second spring positioning and mounting hole 32 of the guide positioning plate 3 and the caster base plate.

[0054] The overall length of the spring 7 is selected according to the required shock-absorbing and buffering distance.

[0055] Based on the gearbox's single-end support weight requirements, the wheelset's speed on the track, and the potential impact force, calculate the maximum load and displacement load of the shock absorber spring 7. Then, select the spring's material, wire diameter, pitch diameter, and number of effective turns.

[0056] The installation method of the shock-absorbing spring 7 is as follows: the spring positioning screw 8 is passed from top to bottom through the first spring positioning mounting hole of the third support plate 23, the inner hole of the spring 7, the second spring positioning mounting hole 32 of the guide positioning plate 3, and the third spring positioning mounting hole 10 on the caster base plate, and then the spring positioning screw 8 is fixed with a self-locking nut so that the spring 7 is between the lower plane of the third support plate 23 and the upper plane of the guide positioning plate 3.

[0057] Furthermore, when the gearbox anti-jump and shock-absorbing wheel device is used, it must be carried out when the train body and the driving wheel pair assembly are in the raised position at the same time, the gearbox hanger has been removed, and the safety boss at the front end of the gearbox has been placed on the safety stop to ensure the safety of personnel and standing operation.

[0058] The specific usage is as follows:

[0059] First, confirm the diameter of the gearbox boom fixing screws and select M20 bolts with M8 bolt heads 6 or M24 bolts with M8 bolt heads 5.

[0060] Next, align the two U-shaped slots 212 on the first support block on the fixture with the two boom fixing holes on the gearbox, and then screw the M20 bolt 6 with an M8 bolt head or the M24 bolt 5 with an M8 bolt into the two boom fixing holes.

[0061] Next, visually inspect the inside surface of the boom mounting hole for any steps or curved welds. As needed, insert a U-shaped spacer (1) between the gearbox boom mounting hole plane and the upper surface of the first support plate (21), avoiding any curved welds. If there are any steps or welds on the inside surface of the boom mounting hole, add a U-shaped spacer (1). Then, tighten the M20 bolts (6) or M24 bolts with M8 heads.

[0062] Then lower the ground crane so that the 6-inch wide-body directional polyurethane casters of the gearbox anti-jump and shock-absorbing wheel device touch the ground.

[0063] Finally, remove the safety stop at the front end of the gearbox so that the front end of the gearbox is completely supported by the gearbox anti-jump and shock-absorbing wheel device, remove the other fasteners of the driving wheel assembly, and then push the driving wheel assembly out from under the vehicle.

[0064] The utility model has the following beneficial effects:

[0065] 1. Simplified operation process: This device allows maintenance personnel to directly install it into the mounting threaded hole of the gear box boom when the underground car lift is in a high position, and then lower the underground car lift to the ground. This improvement greatly simplifies the operation process and reduces the time and difficulty of maintenance personnel to drill under the car to operate.

[0066] 2. Enhanced stability and reliability: This device has a shock-absorbing function by setting a spring. It can effectively absorb the impact caused by uneven ground during the movement of the gearbox, ensure the stable connection between the tooling and the gearbox, and prevent the tooling from falling off or the gearbox from being damaged due to vibration.

[0067] 3. Protective equipment: This device reduces direct hard contact between the tooling and the gearbox boom mounting threaded holes by setting U-shaped pads and avoids the welding parts at the inner edge. It effectively avoids the problem of thread damage caused by the tilted screwing of bolts when the contact surface of the original tooling is uneven, thereby extending the service life of the gearbox and its related components.

[0068] In the description of this application, it should be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the technologies, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0069] It should be noted that, in this application, the terms "comprises", "includes" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. It should also be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

[0070] In addition, it should be noted that, unless otherwise expressly specified or limited, the terms "connect" and "drive" used in the description of this application should be understood in a broad sense, and can refer to the relationship between two components directly, through an intermediate medium, or within the scope of two components. Those skilled in the art will understand their specific meanings in this application based on the specific circumstances. In this document, terms such as "first" and "second" are used solely to distinguish one entity or operation from another, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0071] The above embodiments are provided for persons familiar with the art to implement or use the present application. Personnel familiar with the art may make various modifications or changes to the above embodiments without departing from the application concept of the present application. Therefore, the scope of protection of the present application is not limited to the above embodiments, but should be the maximum scope of the innovative features mentioned in the claims.

Claims

1. A gear box anti-jump and shock-absorbing wheel device, characterized in that: The gear box anti-jump and shock-absorbing wheel device comprises: A support module, wherein the support module is provided with a support assembly, and the support assembly is provided with a U-shaped subunit, the U-shaped subunit is placed on the support assembly, and the U-shaped subunit is installed to match the diameter of the gearbox boom fixing screw hole; A guide and positioning module, the guide and positioning module is placed at the lower end of the support module; A shock-absorbing module, the shock-absorbing module comprising a spring, the spring being placed on the upper end of the guide and positioning module; The rolling module includes a pulley, and the pulley is placed at the lower end of the guide and positioning module.

2. The gear box anti-jump and shock-absorbing wheel device according to claim 1, characterized in that: The support assembly includes a first support plate, a second support plate and a third support plate. The first support plate includes a U-shaped groove, and the U-shaped groove is paired with the U-shaped subunit.

3. The gear box anti-jump and shock-absorbing wheel device according to claim 1, characterized in that: The U-shaped subunit is a U-shaped pad, and the U-shaped pad is provided with a receiving hole.

4. The gear box anti-jump and shock-absorbing wheel device according to claim 2, characterized in that: The guiding and positioning module includes a guiding and positioning plate and a positioning catheter. The positioning catheter passes through the guiding and positioning plate and is connected to the third support plate.

5. The gear box anti-jump and shock-absorbing wheel device according to claim 4, characterized in that: A positioning guide pin is provided at the bottom of the third support plate. The positioning guide pin is inserted into the positioning guide tube of the guiding positioning plate. The positioning guide pin has the same length as the positioning guide tube.

6. The gear box anti-jump and shock-absorbing wheel device according to claim 4, characterized in that: The third support plate is provided with a first spring positioning installation hole, the guide positioning plate is provided with a second spring positioning installation hole, and the spring is placed between the first spring positioning installation hole and the second spring positioning installation hole via a positioning screw (8).

7. The gear box anti-jump and shock-absorbing wheel device according to claim 4, characterized in that: The rolling module further comprises a caster base plate, the caster base plate is provided with a first fixing hole, and the guide positioning plate is provided with a corresponding second fixing hole, so that the rolling module is mounted on the lower end of the guide positioning plate.

8. The gear box anti-jump and shock-absorbing wheel device according to claim 1, characterized in that: The pulley is 0.2 meters long and is a wide-body directional polyurethane caster.

9. The gear box anti-jump and shock-absorbing wheel device according to claim 1, characterized in that: Four springs are provided.

10. The gear box anti-jump and shock-absorbing wheel device according to claim 2, characterized in that: The U-shaped groove is installed by matching the diameter of the gear box boom fixing screw hole with an M20 bolt with an M8 bolt head. The M20 bolt with the M8 bolt head includes an M20 hexagonal bolt and an M8*20 hexagonal bolt. The M20 hexagonal bolt is provided with an M8*15 hole, and the M8*20 hexagonal bolt is fixed in the M8*15 hole.

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