Wrench for gear box boom mounting and gear box boom assembly

Abstract

The utility model relates to the field of railway vehicles provides a wrench and gear box boom assembling device for gear box boom installation, the wrench for gear box boom installation includes: wrench main part, the first end face and the second end face have to the wrench main part, the limit hole is equipped to the wrench main part, the limit hole is formed from the first end face to the second end face through, and the shape of limit hole is matched with the nut shape of boom, the baffle, the baffle sets up at the second end face, and the baffle covers part limit hole. The utility model's wrench main part cannot be affected by gravity and continue to move down and contact the gasket, so through the baffle can limit the movement of wrench on the axial direction of boom, can fix the position of wrench in the axial direction of boom, makes the first end face of wrench main part and gasket keep a certain distance, does not happen contact friction, thereby avoids the problem that gasket rotates because of contact friction, causes the problem of gasket direction disorder.

Description

Technical Field

[0001] This utility model relates to the field of rail vehicles, and provides a wrench and gearbox boom assembly device for installing gearbox booms. Background Technology

[0002] High-speed rail bogies consist of complex mechanical structures, hydraulic lines, pneumatic lines, and electrical wiring. Problems can arise during gearbox bogie assembly. For example, if the process specifications require the gearbox bogie adjustment shims to have their openings facing inwards, the fork wrench and socket wrench may not be able to control the distance between the wrench's bottom and the shim, causing contact. This can lead to the shims rotating during tightening, resulting in the U-shaped shims having incorrect opening directions, which does not meet the assembly process requirements. Utility Model Content

[0003] This utility model provides a wrench and gearbox hanger assembly device for installing a gearbox hanger rod, which solves one of the defects in related technologies. The wrench body of this utility model cannot continue to move downward to contact the gasket under the influence of gravity. Therefore, the baffle can restrict the movement of the wrench in the axial direction of the hanger rod, and fix the position of the wrench in the axial direction of the hanger rod, so that the first end face of the wrench body and the gasket are kept at a certain distance and no contact friction occurs. This avoids the problem of the gasket rotating due to contact friction and causing the gasket to be misaligned.

[0004] This utility model embodiment provides a wrench for installing a gearbox lifting rod, comprising: The wrench body has a first end face and a second end face that are opposite to each other. The wrench body is provided with a limiting hole that is formed through the first end face and the second end face. The shape of the limiting hole matches the shape of the nut on the lifting rod. A baffle is disposed on the second end face, and the baffle partially blocks the limiting hole.

[0005] According to one embodiment of the present invention, the second end face extends inwardly from the edge of the limiting hole to form the baffle, and the baffle is configured with a through hole coaxially communicating with the limiting hole.

[0006] According to one embodiment of the present invention, the baffle includes: Multiple plates are arranged in a centrally symmetrical manner around the axial direction of the limiting hole.

[0007] According to one embodiment of the present invention, it further includes: Operating handle, including: The crank portion has a first end and a second end sequentially arranged along the direction from the first end face to the second end face, and the first end is connected to the wrench body. A handheld part, which is connected to the second end.

[0008] According to one embodiment of the present invention, the crank portion is shaped like a gooseneck.

[0009] According to one embodiment of the present invention, the second end of the crank portion is higher than the top surface of the pipeline and the junction box.

[0010] According to one embodiment of the present invention, the extending direction of the handheld part is perpendicular to the axial direction of the limiting hole.

[0011] According to one embodiment of the present invention, the wrench body includes: case; A reversing positioning component is provided, which forms the limiting hole. The reversing positioning component is disposed inside the housing and is adapted to switch between a first position and a second position. In the first position, the housing remains fixed, and in the second position, the housing can rotate about the axis of the limiting hole.

[0012] According to one embodiment of the present invention, the reversing positioning component includes: A gear ring is disposed inside the housing, and the limiting hole is formed on the inner side of the gear ring. The housing can rotate axially relative to the gear ring about the limiting hole. A spring top ball is disposed inside the housing, and the housing is provided with a positioning hole. At the first position, the spring top ball is embedded in the positioning hole. A reversing lever, which is adapted to adjust the rotation direction of the housing.

[0013] This utility model embodiment also provides a gearbox lifting rod assembly device, including a fixing base and a wrench for installing the gearbox lifting rod as described above, wherein the fixing base includes: The base is mounted on both sides of the gearbox rod mounting seat; A pressure plate, which is adapted to be inserted into a pressure cap groove, is disposed on the base.

[0014] This utility model discloses a wrench for installing gearbox lifting rods, mainly composed of a wrench body and a baffle. The wrench body has a ring-shaped structure with a first end face and a second end face arranged opposite each other. A limiting hole extends from the first end face to the second end face at the middle position of the wrench body, and a baffle is provided on the second end face. The baffle can at least partially cover the limiting hole, that is, the baffle is located at the opening of the limiting hole on the second end face. When the wrench is used, the nut on the lifting rod moves from the first end face to the second end face and enters the limiting hole in the wrench body. The shape of the limiting hole is adapted to the shape of the nut on the lifting rod, which can position the nut in the circumferential direction and prevent the nut from rotating in the limiting hole. When the nut reaches the second end face, it can contact and abut against the baffle, thereby limiting the movement of the lifting rod in the axial direction.

[0015] When the boom is vertically aligned, the wrench body moves from top to bottom, causing the boom nut to enter the limiting hole from bottom to top. At this time, the washer is located below the first end face of the wrench body. Under the limiting action of the baffle, the nut cannot continue to move upward in the limiting hole. That is, the wrench body cannot continue to move downward to contact the washer due to gravity. Therefore, the baffle can restrict the movement of the wrench in the axial direction of the boom, fixing the position of the wrench in the axial direction of the boom and keeping a certain distance between the first end face of the wrench body and the washer, preventing contact friction. This avoids the problem of the washer rotating due to contact friction, which could cause the washer to be misaligned. It can ensure that the washer opening is uniformly perpendicular to the transverse center of the bogie. In the complex high-speed rail bogie structure, this utility model can ensure that the washer orientation is not disordered during the installation of the gearbox boom, achieving efficient assembly operations, improved work quality, and more stable fastening. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the wrench for installing a gearbox hanger provided in an embodiment of this utility model; Figure 2 This is an exploded view of the wrench and gearbox lifting rod for installation provided in this embodiment of the utility model. Figure 3 This is a diagram showing the position of the wrench used for installing the gearbox boom in the bogie fastening operation, as provided in this embodiment of the utility model. Figure 4 This is a simplified schematic diagram of the torque during operation of the wrench used for installing a gearbox boom provided in this embodiment of the utility model; Figure 5 This is a schematic diagram of the force line of the wrench used for installing the gearbox lifting rod according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the fixing seat of the gearbox lifting rod assembly device provided in this embodiment of the utility model.

[0018] Figure label: 8. Nuts; 10. Cotter pins; 9. 11. 12. 13. 14. 15. 16. U-shaped washers; 17. Hangers; 18. Junction boxes; 20. Conduits; 100. Wrench body; 110. First end face; 120. Second end face; 130. Limiting hole; 140. Housing; 150. Reversing positioning component; 151. Gear ring; 152. Spring ball; 153. Reversing lever; 200. Baffle; 210. Plate section; 300. Operating lever; 310. Crank section; 320. Hand grip; 400. Fixing base; 410. Base; 420. Pressure plate; 430. Handle. Detailed Implementation

[0019] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0023] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0024] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0025] like Figures 1 to 3 As shown, the wrench for installing a gearbox lifting rod provided in this embodiment of the present invention includes a wrench body 100 and a baffle 200. The wrench body 100 has a first end face 110 and a second end face 120 facing each other. The wrench body 100 is provided with a limiting hole 130, which is formed through the first end face 110 to the second end face 120. The shape of the limiting hole 130 matches the shape of the nut 8 of the lifting rod 17. The baffle 200 is disposed on the second end face 120 and partially blocks the limiting hole 130.

[0026] The wrench for installing a gearbox lifting rod according to this embodiment mainly consists of a wrench body 100 and a baffle 200. The wrench body 100 has a ring-shaped structure and has a first end face 110 and a second end face 120 arranged opposite to each other. A limiting hole 130 extends from the first end face 110 to the second end face 120 at the middle position of the wrench body 100. The baffle 200 is provided on the second end face 120, and the baffle 200 can at least partially cover the limiting hole 130, that is, the baffle 200 is located on the second end face of the limiting hole 130. At the orifice of 120, when the wrench is in use, the nut 8 on the rod 17 moves from the first end face 110 to the second end face 120 and enters the limiting hole 130 of the wrench body 100. The shape of the limiting hole 130 is adapted to the shape of the nut 8 on the rod 17, which can position the nut 8 in the circumferential direction and prevent the nut 8 from rotating in the limiting hole 130. When the nut 8 reaches the second end face 120, it can contact and abut against the baffle 200, thereby limiting the movement of the rod 17 in the axial direction.

[0027] When the axial direction of the boom 17 is vertically set, the wrench body 100 moves from top to bottom, causing the nut 8 of the boom 17 to enter the limiting hole 130 from bottom to top. At this time, the washer is located below the first end face 110 of the wrench body 100. Under the limiting action of the baffle 200, the nut 8 cannot continue to move upward in the limiting hole 130. That is, the wrench body 100 cannot continue to move downward to contact the washer due to gravity. Therefore, the baffle 200 can restrict the movement of the wrench in the axial direction of the boom 17, and fix the position of the wrench in the axial direction of the boom 17, so that the first end face 110 of the wrench body 100 and the washer are kept at a certain distance and no contact friction occurs. This avoids the problem of the washer rotating due to contact friction and causing the washer to be misaligned, and ensures that the washer opening is uniformly perpendicular to the transverse center of the bogie. In the complex high-speed rail bogie structure, this utility model can ensure that the washer is not misaligned when the gearbox boom 17 is installed, and achieves the functions of efficient assembly operation, improved operation quality and more stable fastening.

[0028] The gearbox lifting rod has U-shaped washers. U-shaped washers 11, 12, 13, 14, 15, and 16 all have strict directional requirements, requiring that the openings of the U-shaped washers be aligned and facing inwards. During operation, the bottom surface of the wrench easily contacts U-shaped washer 9, causing it to rotate under friction. Simultaneously, U-shaped washer 9 will cause U-shaped washers 11, 12, 13, 14, 15, and 16 to rotate to varying degrees, resulting in misalignment of the U-shaped washers. A baffle, utilizing the outer corner of the nut 8, can stop the wrench body 100 from sliding down and contacting the U-shaped washers 9, ensuring that each U-shaped washer does not rotate and maintains its designated position.

[0029] The gearbox lifting rod 17 and the slotted nut 8 require the insertion of a cotter pin 10. The existing socket wrench has its ratchet reversing mechanism located at the top of the wrench, making it inconvenient to observe whether the position of the cotter pin 10 hole is aligned with the opening of the slotted nut 8. The wrench must be repeatedly removed to observe and adjust.

[0030] According to one embodiment of the present invention, the second end face 120 extends inward at the edge of the limiting hole 130 to form a baffle 200, and the baffle 200 is constructed with a through hole coaxially connected to the limiting hole 130.

[0031] In this embodiment, the baffle 200 and the wrench body 100 are an integral structure. The baffle 200 is an extension of the second end face 120. The limiting hole 130 is located at the edge of the second end face 120. The baffle 200 is formed by extending into the limiting hole 130 based on the plane of the second end face 120. Therefore, the baffle 200 is located at the edge of the limiting hole 130 to block the limiting hole 130 and to abut and limit the end edge of the rod 17.

[0032] The baffle 200 itself has a through hole, which is coaxial with and connected to the limiting hole 130. When the nut 8 is tightened with a wrench, the pin of the lifting rod 17 can be exposed through the through hole after passing through the limiting hole 130, and then the cotter pin 10 can be inserted. Compared with the existing socket wrench, which cannot insert the cotter pin 10, the wrench of this utility model has a more comprehensive function. While tightening the installation, it can also act on the cotter pin 10 at the same time, improving the installation efficiency.

[0033] In this embodiment, when the limiting hole 130 is formed on the wrench body 100, the shape of the hole is adjusted and changed at the position close to the second end face 120, leaving room for the shape of the baffle 200 before it passes through. In other embodiments, the baffle 200 can be a separate structure from the wrench body 100, with the baffle 200 made separately and then combined with the second end face 120 of the wrench body 100.

[0034] According to one embodiment of the present invention, the baffle 200 includes a plurality of plate portions 210, which are centrally symmetrically distributed around the axial direction of the limiting hole 130.

[0035] In this embodiment, the baffle 200 is mainly composed of multiple plate parts 210. The multiple plate parts 210 are the same in shape and size. The multiple plate parts 210 are distributed around the edge of the limiting hole 130. The multiple baffles 200 are centrally symmetrically distributed with the axis of the limiting hole 130 as the center. They can limit and abut against the rod 17 at multiple positions and angles, disperse the force generated by the contact between the baffle 200 and the rod 17, and the force on the baffle 200 and the rod 17 is uniform.

[0036] In this embodiment, the baffle 200 consists of two symmetrically arranged plate portions 210, which are identical in shape and size.

[0037] The bogie has many structural parts and operates in a confined space, making it extremely easy to collide with pipelines and cause damage.

[0038] According to one embodiment of the present invention, the wrench for installing the gearbox boom further includes an operating handle 300, which includes a crank portion 310 and a hand-held portion 320. The crank portion 310 is provided with a first end and a second end in sequence along the direction from the first end face 110 to the second end face 120. The first end is connected to the wrench body 100. The hand-held portion 320 is connected to the second end.

[0039] In this embodiment, the wrench used for installing the gearbox boom mainly consists of a wrench body 100, a baffle 200, and an operating handle 300. The operating handle 300 mainly consists of a crank portion 310 and a handheld portion 320. The handheld portion 320 is connected to the wrench body 100 through the crank portion 310. The operator can operate the entire wrench to rotate or move by gripping the handheld portion 320. There is a certain distance between the first end and the second end of the crank portion 310. When the crank portion 310 is vertically arranged, with the first end connected to the wrench body 100 and the second end connected to the handheld portion 320, a certain height difference can be formed between the handheld portion 320 and the wrench body 100. Thus, the actual operating space of the operator can be vertically misaligned with the space where the boom 17 is located.

[0040] During the installation of the boom 17, the worker's hands and the handheld part 320 can avoid the equipment parts around the boom 17. Considering the complex structure and precise assembly of the high-speed rail bogie, this utility model improves the working space through the design of the crank part 310 and the handheld part 320, which can effectively avoid the possibility of interference and impact on the pipeline 20 during the assembly of the gearbox boom 17 in a limited working space.

[0041] According to one embodiment of the present invention, the crank portion 310 is shaped like a gooseneck.

[0042] In this embodiment, the crank part 310 is a gooseneck crank that imitates the bend of a gooseneck, that is, the shape of the crank is similar to that of a gooseneck and has a certain degree of curvature. The hand handle part 320 is connected to the wrench body 100 through the gooseneck crank. The gooseneck crank changes the working space of the operating handle 300 and avoids the possibility of the hand handle part 320 colliding with the bogie cable conduit.

[0043] Furthermore, the gooseneck crank reduces the bending and torsional forces on the wrench body 100 and crank portion 310, maximizing the conversion of the tightening force of the operating handle 300 into the tightening torque of the nut 8. This prevents the crank portion 310 from breaking and improves tightening efficiency, reducing labor intensity and increasing work efficiency. The gooseneck design also reduces the bending and torsional torque caused by the offset of the force point on the crank portion 310, reducing all torque on the crank portion 310, preventing the wrench from breaking, and extending its service life. The gooseneck crank structure enables controllable force transmission and spatial position.

[0044] like Figure 5 As shown, the force F1 at point C is the tightening force. Simplifying to point B, we get force M2 and torque F2. Torque M2 causes nut 8 to rotate, thus tightening the fastener. F2 is an unfavorable force. In an ideal state, the tightening force F1 is simplified to the center point A of the fastener and becomes the tightening torque M1. There is no unfavorable force F2. Therefore, it is necessary to minimize the distance from point B to point A.

[0045] like Figure 4 As shown, the unfavorable force F2 generates a torque T on fastener D. This torque T is an unfavorable torque, causing torsional deformation of the gooseneck crank. The design of the gooseneck crank reduces the lever arm L2 to L1, thereby reducing the torque T. More of the useful work of the fastening force F1 is converted into the fastening torque M2, improving the efficiency of useful work conversion. At the same time, it prevents the gooseneck crank from bearing excessive torque T, thus increasing its service life.

[0046] According to one embodiment of the present invention, the second end of the crank portion 310 is higher than the top surface of the pipeline 20 and the junction box 18.

[0047] In this embodiment, the side of the junction box 18 is close to the nut 8 of the gearbox rod 17 and the pipeline 20. At the same time, the top surface of the junction box 18 is level with the nut 8, and the overall height of the crank part 310 is just higher than the pipeline 20 and the top surface of the junction box 18. This avoids the possibility of the operating handle 300 colliding with the pipeline 20 during the tightening operation and improves the limited working space.

[0048] According to one embodiment of the present invention, the extending direction of the handheld part 320 is perpendicular to the axial direction of the limiting hole 130.

[0049] In this embodiment, after the hand-held part 320 is connected to the second end of the crank part 310, it gradually extends away from the limiting hole 130 in the radial direction of the limiting hole 130, thereby maximizing the torque of the operating handle 300.

[0050] Existing fork wrenches lack a ratchet reversing mechanism, requiring frequent changes in direction and resulting in low tightening efficiency.

[0051] According to one embodiment of the present invention, the wrench body 100 includes a housing 140 and a reversing positioning component 150. The reversing positioning component 150 forms a limiting hole 130. The reversing positioning component 150 is disposed inside the housing 140 and is adapted to switch between a first position and a second position. In the first position, the housing 140 remains fixed, and in the second position, the housing 140 can rotate about the axis of the limiting hole 130.

[0052] In this embodiment, the wrench body 100 mainly consists of a housing 140 and a reversing positioning component 150. The housing 140 has an annular structure, specifically formed by a first end face 110, a second end face 120, and an outer side plate, which together enclose the internal installation space. The reversing positioning component 150 is provided with a limiting hole 130. The reversing positioning component 150 is installed in the installation space and can switch between a first position and a second position. In the first position, the housing 140 is locked and fixed, and is in a relatively stationary state with respect to the reversing positioning component 150. At this time, the operating handle 300 can drive the housing 140 and the reversing positioning component 150 to rotate synchronously to tighten the nut 8. In the second position, the housing 140 is unlocked and is in a relatively rotatable state with respect to the reversing positioning component 150. At this time, the operating handle 300 can drive the housing 140 to rotate relative to the reversing positioning component 150, while the reversing positioning component 150 remains stationary, allowing for relative adjustment of the positions of the operating handle 300 and the limiting hole 130.

[0053] In this embodiment, through the arrangement of the housing 140 and the reversing positioning component 150, the operating handle 300 controls the wrench body 100 to rotate from the initial position to the target position. Then, the housing 140 is individually reversed back to the initial position, and the housing 140 drives the reversing positioning component 150 to continue rotating. The housing 140 reaches the target position, while the reversing positioning component 150 drives the nut 8 to rotate for tightening. Therefore, the housing 140 always rotates between the target position and the initial position, while the reversing positioning component 150 performs continuous angular rotation. Compared with existing wrenches, it is not necessary to remove the wrench from the nut 8 and change its position every time it is tightened. This achieves the reciprocating motion of the operating handle 300 and unidirectional tightening, improving tightening efficiency. At the same time, the angle rotated between the target position and the initial position is the tightening angle of the nut 8, which is more free and controllable, and can achieve 6° angle range rotation control of the nut 8.

[0054] According to one embodiment of the present invention, the reversing positioning component 150 includes a gear ring 151, a spring top bead 152, and a reversing lever 153. The gear ring 151 is disposed inside the housing 140, and a limiting hole 130 is formed on the inner side of the gear ring 151. The housing 140 can rotate axially relative to the gear ring 151 about the limiting hole 130. The spring top bead 152 is disposed inside the housing 140, and the housing 140 is provided with a positioning hole. In a first position, the spring top bead 152 is embedded in the positioning hole. The reversing lever 153 is adapted to adjust the rotation direction of the housing 140.

[0055] In this embodiment, the reversing positioning component 150 mainly includes a gear ring 151, a spring top ball 152, and a reversing lever 153. The outer side of the gear ring 151 has teeth, and the inner side of the gear ring 151 surrounds a limiting hole 130. The gear ring 151 is disposed inside the housing 140, and the inner side of the gear ring 151 serves as the inner side of the annular structure of the housing 140. Moving the reversing lever 153 can unlock the housing 140, allowing the housing 140 to rotate relative to the gear ring 151, thereby completing the rotation of the housing 140 from the target position to the initial position. The spring top ball 152 can enter the positioning hole of the housing 140 to fix the housing 140 and the gear ring 151 relative to each other, realizing rapid reversing during the fastening process of the gearbox boom 17 and improving work efficiency.

[0056] like Figure 6 As shown, this utility model embodiment also provides a gearbox hanger assembly device, including a fixed base 400 and a wrench for installing the gearbox hanger as described above. The fixed base 400 includes a base 410 and a pressure plate 420. The base 410 is mounted on both sides of the gearbox hanger 17 mounting seat. The pressure plate 420 is adapted to be inserted into the pressure cover groove and is disposed on the base 410.

[0057] The gearbox hanger assembly device of this utility model mainly consists of a fixed base 400 and a wrench, forming a tool combination for matching and application. To eliminate problems such as cap twisting during the assembly of the bogie gearbox hanger 17, low assembly efficiency, and wear on the mounting surface, the gearbox hanger assembly device is combined with a wrench used for gearbox hanger installation, achieving efficient, high-quality, and stable fastening of the assembly operation.

[0058] The mounting base 400 is used to fix the gearbox lifting rod 17 to both sides of the mounting base, and also supports the pressure plate 420. To ensure that the mounting base 400 does not damage the frame body or cause paint scratches, nylon plates are installed on both sides of the mounting base 400 to prevent scratches on the frame surface. The pressure plate 420 is used to fix the pressure cap, ensuring that the pressure cap does not rotate when the slotted nut 8 rotates. The mounting base 400 is also equipped with a handle 430 for easy lifting and handling.

[0059] The specific operating procedure is as follows: Before use, insert the pressure plate 420 into the pressure cap groove, place the fixing seat 400 on both sides of the gearbox hanger mounting seat, and tighten the nuts 8 directly with a wrench to complete the operation. Ensure the orientation of the pressure cap opening is correct by tightening the side nuts 8 of the gearbox hanger assembly device to achieve horizontal alignment. This ensures consistency in the opening direction of the pressure cap and prevents rotation issues during assembly.

[0060] This utility model provides a gearbox hanger assembly cover anti-deflection device and fastening tool. It adopts single-sided fixed quick clamping to achieve positioning. The effective application of the gooseneck crank structure meets the fastening process in narrow positions. At the same time, it improves the unilateral rotation and force of nut 8 to circumferential force and circumferential rotation, and realizes the controllability of the rotation angle of nut 8.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A wrench for installing a gearbox lifting rod, characterized in that, include: The wrench body (100) has a first end face (110) and a second end face (120) facing each other. The wrench body (100) is provided with a limiting hole (130). The limiting hole (130) is formed through the first end face (110) to the second end face (120). The shape of the limiting hole (130) matches the shape of the nut (8) of the lifting rod (17). A baffle (200) is disposed on the second end face (120), and the baffle (200) partially blocks the limiting hole (130).

2. The wrench for installing a gearbox hanger rod according to claim 1, characterized in that, The second end face (120) extends inward from the edge of the limiting hole (130) to form the baffle (200), and the baffle (200) is constructed with a through hole coaxially connected to the limiting hole (130).

3. The wrench for installing a gearbox hanger rod according to claim 1, characterized in that, The baffle (200) includes: Multiple plate portions (210) are centrally symmetrically distributed around the axial direction of the limiting hole (130).

4. The wrench for installing a gearbox hanger rod according to any one of claims 1 to 3, characterized in that, Also includes: Operating handle (300), including: The crank portion (310) has a first end and a second end sequentially arranged along the direction from the first end face (110) to the second end face (120), and the first end is connected to the wrench body (100); Handheld part (320), which is connected to the second end.

5. The wrench for installing a gearbox hanger rod according to claim 4, characterized in that, The crank section (310) is shaped like a goose neck.

6. The wrench for installing a gearbox lifting rod according to claim 4, characterized in that, The second end of the crank section (310) is higher than the top surface of the pipeline (20) and the junction box (18).

7. The wrench for installing a gearbox hanger rod according to claim 4, characterized in that, The extension direction of the handheld part (320) is perpendicular to the axial direction of the limiting hole (130).

8. The wrench for installing a gearbox hanger rod according to claim 4, characterized in that, The wrench body (100) includes: Casing (140); A reversing positioning component (150) is provided, which forms the limiting hole (130); the reversing positioning component (150) is disposed in the housing (140) and is adapted to switch between a first position and a second position. In the first position, the housing (140) remains fixed, and in the second position, the housing (140) can rotate about the axis of the limiting hole (130).

9. The wrench for installing a gearbox lifting rod according to claim 8, characterized in that, The reversing positioning component (150) includes: A gear ring (151) is disposed inside the housing (140), and the inner side of the gear ring (151) forms the limiting hole (130). The housing (140) can rotate relative to the gear ring (151) about the axial direction of the limiting hole (130). A spring top bead (152) is disposed inside the housing (140), and the housing (140) is provided with a positioning hole. In the first position, the spring top bead (152) is embedded in the positioning hole. A reversing lever (153) is adapted to adjust the rotation direction of the housing (140).

10. A gearbox lifting rod assembly device, characterized in that, Includes a mounting base (400) and a wrench for mounting a gearbox boom as described in any one of claims 1 to 9, wherein the mounting base (400) comprises: The base (410) is mounted on both sides of the gearbox hanger (17) mounting base; A pressure plate (420) is adapted to be inserted into a pressure cap groove and is disposed on the base (410).

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