Modular gearbox service stand

Abstract

The utility model relates to gear box maintenance technical field, and disclose modularization gear box maintenance support, including maintenance frame body and gear box body, gear box body surface is equipped with the convex, and maintenance frame body includes track piece, and the inner wall sliding connection of track piece has a plurality of movers, and the top of mover is equipped with L type groove, the inner wall sliding connection of L type groove has L type board, and L type board parallel section length is greater than the height of L type board vertical section, and L type board top is equipped with the clamp piece, the utility model discloses through with the clamp of maintenance frame body is divided into clamp piece and the two module of mover, can through bolt dismount, make staff when facing different models gear box body, only need to select suitable clamp piece, and the L type board of clamp piece slides into the L type groove of mover, can improve the clamping effect of clamp, thereby adapt to different shapes and convex gear box body, be convenient for staff to fix gear box body when maintaining, need not directly with assembly contact, prevent gear box body inner wall assembly damage.

Description

Technical Field

[0001] This utility model belongs to the field of gearbox repair technology, and specifically relates to a modular gearbox repair bracket. Background Technology

[0002] A gearbox is a mechanical transmission device that uses a combination of gears of different sizes and numbers of teeth to achieve speed conversion and torque amplification or reduction. The enclosed housing protects the internal gears and bearings from contamination and provides an oil storage space to ensure lubrication. The housing can be rectangular, irregularly shaped, or have raised edges for fixing.

[0003] Currently, Chinese utility model patent CN209589468U discloses a support frame for mounting a gearbox test bench, including a support frame, a supporting torque arm, and a torque arm bracket. The torque arm bracket is symmetrically arranged on both sides of the support frame on the test bench. A pin is provided at the top of the torque arm bracket. One end of the supporting torque arm is an ear plate with a round hole, and the supporting torque arm is connected to the pin through the ear plate. The other end of the supporting torque arm is a connecting plate surface. Threaded holes are opened at the upper and lower parts of the connecting plate surface, and a protruding toothed block is provided in the middle of the connecting plate surface. The support frame has a ring-shaped structure, and one side of the ring-shaped support frame has a raised edge sidewall. Flat surfaces are opened on both sides of the raised edge sidewall of the support frame, and a notch is formed in the middle of the flat surface. Threaded holes are opened at the upper and lower parts of the flat surface on the raised edge sidewall. The support frame fixes the input shaft of the gearbox, reducing gearbox shaking during the experiment, reducing wear of parts caused by shaking, and increasing experimental safety.

[0004] In the structure disclosed above, the input shaft of the gearbox is sleeved on the inner ring of the support frame and fixed with bolts to stabilize the gearbox. However, this mechanism requires the gear mechanism of the gearbox to be disassembled and removed in order for the input shaft to contact the support frame. Existing gearboxes are often difficult to disassemble from various shafts and gears, resulting in a limited range of applications for this mechanism.

[0005] Meanwhile, the input shaft directly bears the weight of the gearbox. The gearbox housing is usually made of cast iron or aluminum alloy, and has a large weight. Under the action of force, the input shaft will be locally dented or twisted, which will damage the meshing clearance between gears and the parallelism of the axis.

[0006] Existing gearbox models vary, and their surfaces often have irregular protrusions. During the maintenance process, the clamps of the maintenance bracket are difficult to adapt to the different protrusions on the surface of the gearbox, which further reduces the applicability of the gearbox maintenance bracket. Utility Model Content

[0007] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a modular gearbox maintenance bracket.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: a modular gearbox maintenance bracket, including a maintenance frame and a gearbox body. The gearbox body has protrusions on its surface. The maintenance frame includes a track component. Multiple moving parts are slidably connected to the inner wall of the track component. An L-shaped groove is opened on the top of the moving parts. An L-shaped plate is slidably connected to the inner wall of the L-shaped groove. The length of the parallel section of the L-shaped plate is greater than the height of the vertical section of the L-shaped plate. A clamp is fixed to the top of the L-shaped plate.

[0009] Preferably, a reinforcing rib is fixed at the connection and fixing point between the parallel section and the vertical section of the L-shaped plate, and a reinforcing rib is fixed at the top of the L-shaped plate near the parallel section. The top of the reinforcing rib is fixed to the bottom of the clamp. Sliding grooves are provided at the corresponding points of the L-shaped groove and the reinforcing rib.

[0010] Preferably, the bottom of the moving part has multiple threaded holes, and the top of the clamping part has threaded holes corresponding to the threaded holes of the moving part. The top of the inner wall of the threaded holes of the clamping part has a stop groove, the diameter of the stop groove is larger than the diameter of the threaded hole, and a rubber ring is glued to the bottom of the inner wall of the stop groove.

[0011] Preferably, wing plates are fixed on both sides of the clamp, the length of the wing plates is equal to the length of the clamp, and the distance between the wing plates and the top of the track component is no more than 3 mm.

[0012] Preferably, each of the multiple clamps has an adapter groove on one of its opposite sides, and the bottom and top of the inner wall of the adapter groove are provided with multiple anti-slip grooves in a linear array, with the grooves of the anti-slip grooves facing the center of the adapter groove.

[0013] Preferably, the maintenance frame further includes a base component, the inner wall of which is fixed with multiple hydraulic cylinders, and the top of each hydraulic cylinder is fixed with a track component.

[0014] Preferably, the bottom of the track component is fixed with multiple L-shaped components, one side of the L-shaped component is slidably connected to one side of the base component, a limiting component is fixed to one side of the L-shaped component, the top of the limiting component is fixed to the bottom of the track component, multiple limiting grooves are opened on the top of the base component, the inner wall of the limiting groove is slidably connected to the surface of the limiting component, the height of the limiting component and the depth of the limiting groove are equal and both are greater than the maximum extension distance of the hydraulic cylinder.

[0015] Preferably, a trapezoidal base plate is rotatably connected to the bottom side of the base via a rotating shaft, a stabilizing component is fixed to the side of the trapezoidal base away from the maintenance frame, and bottom-contact adhesive strips are fixed to both ends of the bottom of the base.

[0016] In summary, this utility model has the following beneficial effects:

[0017] 1. This utility model divides the clamp of the maintenance frame into two modules, a clamping component and a moving component, which can be detached and assembled with bolts. When dealing with different models of gearboxes, the operator only needs to select the appropriate clamping component and slide the L-shaped plate of the clamping component into the L-shaped groove of the moving component to improve the clamping effect of the clamp. This allows it to adapt to gearboxes of different shapes and protrusions, making it easier for the operator to fix the gearbox during maintenance without direct contact with the components, thus preventing damage to the internal wall components of the gearbox.

[0018] 2. In this utility model, the length of the parallel section of the L-shaped plate is greater than the height of the vertical section of the L-shaped plate. When multiple clamping parts approach and clamp the gearbox body at the center, the parallel section of the L-shaped plate provides support force to the clamping parts through the longer lever arm. When the short limb is under force, the force transmission path diffuses to the long limb through the right-angle inflection point, avoiding stress concentration in a single part. For example, when the end of the short limb is subjected to axial pressure or lateral shear force, the long limb can bear part of the load, reduce the shear stress at the root of the short limb, delay material fatigue, and prevent the clamping parts from overturning outward under stress, thereby improving the clamping effect and ensuring stability during maintenance. After clamping, the anti-slip groove on the inner wall of the adapter groove faces the center of the adapter groove. When the protrusion of the gearbox body may slide, the anti-slip groove increases the friction with the protrusion, preventing it from sliding due to maintenance vibration.

[0019] 3. This utility model divides the support of the maintenance frame into two modules: a track component and a base component. This allows the track component to move upwards using the hydraulic cylinder of the base component without affecting the sliding of the moving part within the track component. As a result, when the staff needs to inspect the bottom components of the gearbox, they do not need to bend over. Instead, the track component and the gearbox are raised by the hydraulic cylinder, which improves the staff's experience. Furthermore, by setting multiple synchronous hydraulic cylinders, the gearbox maintains a stable height change, preventing shaking that could damage the meshing clearance and axis parallelism of the gear pair.

[0020] 4. This utility model further ensures the upward stability of the track component by sliding between the limiting component and the limiting groove. At the same time, the L-shaped component acts as a reinforcing rib to further ensure the fixing effect of the limiting component and the track component during the rise, preventing breakage caused by tilting and shaking, and improving the safety of the equipment. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the clamping component of this utility model;

[0023] Figure 3 This is a schematic diagram of the wing plate of this utility model;

[0024] Figure 4 This is an exploded view of the L-shaped plate of this utility model;

[0025] Figure 5 This is a schematic diagram of the adapter slot of this utility model;

[0026] Figure 6 This is a schematic diagram of the limiting component of this utility model.

[0027] Figure label:

[0028] 1. Maintenance frame; 101. Gearbox housing; 102. Protrusion;

[0029] 2. Clamping component; 201. Moving component; 202. L-shaped plate; 203. L-shaped groove;

[0030] 3. Reinforcing ribs;

[0031] 4. Threaded hole; 401, stop groove;

[0032] 5. Wing plate;

[0033] 6. Track components; 601. Base components; 602. Hydraulic cylinders;

[0034] 7. Adaptor groove; 701. Anti-slip groove;

[0035] 8. Limiting components; 801. L-shaped components;

[0036] 9. Trapezoidal substrate; 901. Stabilizer; 902. Bottom-contact adhesive strip. Detailed Implementation

[0037] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.

[0038] The specific embodiments of this utility model are described below with reference to the accompanying drawings:

[0039] Example 1:

[0040] refer to Figures 1-6A modular gearbox repair bracket includes a repair frame 1 and a gearbox body 101. The gearbox body 101 has protrusions 102 on its surface. The repair frame 1 includes a track component 6. Multiple moving parts 201 are slidably connected to the inner wall of the track component 6. An L-shaped groove 203 is formed on the top of each moving part 201. An L-shaped plate 202 is slidably connected to the inner wall of the L-shaped groove 203. The length of the parallel section of the L-shaped plate 202 is greater than the height of the vertical section of the L-shaped plate 202. A clamp 2 is fixed to the top of the L-shaped plate 202. A reinforcing rib 3 is fixed at the connection point between the parallel and vertical sections of the L-shaped plate 202. A reinforcing rib 3 is also fixed to the top of the L-shaped plate 202 near the parallel section, and the top of the reinforcing rib 3 is fixed to the bottom of the clamp 2. Sliding grooves are formed at corresponding locations of the L-shaped groove 203 and the reinforcing rib 3.

[0041] Specifically, by dividing the clamp of the maintenance frame 1 into two modules, clamp 2 and moving part 201, which can be disassembled and installed with bolts, when facing different models of gearbox 101, the staff only needs to select the appropriate clamp 2 and slide the L-shaped plate 202 of clamp 2 into the L-shaped groove 203 of moving part 201 to improve the clamping effect of the clamp, thereby adapting to gearbox 101 with different shapes and protrusions 102. This makes it easier for staff to fix the gearbox 101 during maintenance without direct contact with the components, thus preventing damage to the internal components of the gearbox 101.

[0042] Furthermore, since the length of the parallel section of the L-shaped plate 202 is greater than the height of the vertical section of the L-shaped plate 202, when multiple clamping pieces 2 approach the gearbox 101 at the center for clamping, the parallel section of the L-shaped plate 202 provides support force to the clamping pieces 2 through the longer lever arm, preventing the clamping pieces 2 from overturning outward due to stress during clamping, thereby improving the clamping effect and ensuring stability during maintenance.

[0043] Meanwhile, the reinforcing rib 3 increases the strength of the connection between the parallel and vertical sections of the L-shaped plate 202, preventing the connection from bending or tilting, which would make it difficult to maintain the 90-degree angle and cause damage to the connection. It also increases the fixing effect between the clamp 2 and the L-shaped plate 202.

[0044] The bottom of the moving part 201 has multiple threaded holes 4. The top of the clamp 2 has threaded holes 4 corresponding to the threaded holes 4 of the moving part 201. The top of the inner wall of the threaded hole 4 of the clamp 2 has a stop groove 401. The diameter of the stop groove 401 is larger than the diameter of the threaded hole 4. A rubber ring is glued to the bottom of the inner wall of the stop groove 401.

[0045] Specifically, the moving part 201 and the clamp 2 are bolted together through multiple threaded holes 4. At the same time, a stop groove 401 is provided to prevent the bolt from being higher than the surface of the clamp 2, so as to prevent the bolt from being worn or scratched by the operator and improve the user experience. Meanwhile, the rubber ring on the inner wall of the stop groove 401 prevents the bolt from wearing the stop groove 401 and prevents the bolt from being difficult to disassemble due to rust.

[0046] Both sides of the clamp 2 are fixed with wing plates 5. The length of the wing plates 5 is equal to the length of the clamp 2. The distance between the wing plates 5 and the top of the track piece 6 is no more than 3 mm.

[0047] Specifically, the gearbox 101 is kept stable by the wing plate 5 which is close to the track component 6. After the clamp 2 clamps the gearbox 101, the center of gravity of the gearbox 101 is easily changed during the maintenance process, which causes the clamp 2 to tilt and cause abnormal displacement of the clamp 2. If the displacement is large, it will cause damage to components such as the clamp 2, the moving part 201, and the L-shaped plate 202. When the clamp 2 is tilted, the wing plate 5 borrows force from the track component 6 to support the components and prevent damage, thereby improving the service life of the equipment.

[0048] Multiple clamps 2 are provided with an adapter groove 7 on one side of each other. Multiple anti-slip grooves 701 are provided in a linear array on the bottom and top of the inner wall of the adapter groove 7. The grooves of the anti-slip grooves 701 are oriented toward the center of the adapter groove 7.

[0049] Specifically, the anti-slip groove 701 on the inner wall of the adapter groove 7 faces the center of the adapter groove 7. When the protrusion 102 of the gearbox body 101 may slide, the anti-slip groove 701 increases the friction with the protrusion 102 and prevents it from sliding due to maintenance vibration.

[0050] The maintenance frame 1 also includes a base 601, with multiple hydraulic cylinders 602 fixed to the inner wall of the base 601, and a track component 6 fixed to the top of the hydraulic cylinders 602.

[0051] Specifically, by dividing the support of the maintenance frame 1 into two modules, the track component 6 and the base component 601, the track component 6 can move upwards by the hydraulic cylinder 602 of the base component 601 without affecting the sliding of the moving component 201 within the track component 6. This allows the staff to lift the track component 6 and the gearbox 101 without bending over when they need to inspect the bottom components of the gearbox 101, thereby improving the staff's experience. Furthermore, by setting multiple synchronous hydraulic cylinders 602, the gearbox 101 maintains a stable height change, preventing shaking that could damage the meshing clearance and axis parallelism of the gear pair.

[0052] Multiple L-shaped parts 801 are fixed to the bottom of the track component 6. One side of the L-shaped part 801 is slidably connected to one side of the base component 601. A limiting part 8 is fixed to one side of the L-shaped part 801. The top of the limiting part 8 is fixed to the bottom of the track component 6. Multiple limiting grooves are opened on the top of the base component 601. The inner wall of the limiting groove is slidably connected to the surface of the limiting part 8. The height of the limiting part 8 and the depth of the limiting groove are equal and both are greater than the maximum extension distance of the hydraulic cylinder 602.

[0053] Specifically, the sliding cooperation between the limiting component 8 and the limiting groove further ensures the upward stability of the track component 6. At the same time, the L-shaped component 801 acts as a reinforcing rib, further ensuring the fixing effect of the limiting component 8 and the track component 6 during the upward movement, preventing breakage caused by tilting and shaking, and improving the safety of the equipment.

[0054] A trapezoidal base plate 9 is rotatably connected to the bottom side of the base 601 via a rotating shaft. A stabilizing component 901 is fixed on the side of the trapezoidal base plate 9 away from the maintenance frame 1. Both ends of the bottom of the base 601 are fixed with bottom-contact adhesive strips 902.

[0055] Specifically, through the trapezoidal base plate 9 and the rotating shaft, the operator can control the rotating shaft via an external motor to rotate the entire maintenance frame 1 by a small angle. This facilitates the operator to change the gearbox 101 at a larger angle during maintenance. Because the maintenance frame 1 can rotate at a small angle under the action of the trapezoidal base plate 9, it effectively prevents the position of the internal components of the gearbox 101 from changing due to a large angle change. At the same time, the bottom-contact rubber strip 902 provides a buffer between the bottom of the base 601 and the ground when the angle changes to the maximum extent, preventing wear on the bottom of the base 601. Furthermore, the stabilizing component 901 prevents the equipment from becoming unstable due to the shift of the center of gravity of the gearbox 101, thus improving the stability of the equipment.

[0056] Example 2:

[0057] refer to Figures 1-6 Based on the structure disclosed in this utility model, workers in a steel rolling workshop placed the base of the modular gearbox maintenance bracket on a flat surface, unfolded the trapezoidal base plate to a 60° angle, and pressed the stabilizing rubber pad onto the ground. For the 42mm high trapezoidal bosses on both sides of the Flender KSH14-71 gearbox housing, ZG-200 type clamps were selected, and their L-shaped plates were horizontally inserted into the L-shaped grooves of the moving parts. 12.9 grade M16×60 bolts were passed through the threaded holes at the top of the clamps and tightened, so that the bolt heads were embedded in the stop groove to compress the nitrile rubber rings to prevent loosening. After hoisting the 1.8-ton gearbox to the center of the track component, the moving part was pushed to make the clamp's matching groove engage and protrude. Simultaneously, the Φ300mm handwheel was tightened until the anti-slip groove and the cast iron boss formed a mechanical interlock, maintaining a 2.5mm gap between the control wing plate and the top surface of the track component. The hydraulic station is activated to drive four sets of HOB-63×300-S type cylinders at a pressure of 16MPa to synchronously lift the track components to a height of 800mm. The limiting components slide vertically within the limiting grooves of the base component with H7 / g6 tolerance fit, and the 25mm thick L-shaped components counteract the off-center load torque. The height fluctuation during the lifting process is <0.2mm. When inspecting the side welds of the housing, the trapezoidal base plate shaft is rotated 12°. The bottom rubber strip absorbs the impact. When the whole machine is tilted, the stabilizing components maintain a grip force of >5kN. The displacement of the clamps is <0.05mm throughout the entire maintenance cycle.

[0058] The working principle of this utility model is as follows: The operator selects a suitable clamp 2 based on the shape of the protrusion 102 on the surface of the gearbox 101 to be repaired. The L-shaped plate 202 at its bottom is slid horizontally into the L-shaped groove 203 at the top of the moving part 201 to achieve rapid modular assembly. Bolts are then passed through the threaded holes 4 of the clamp 2 and the moving part 201 for fixing. The bolt heads are embedded in the stop groove 401 and secured by rubber rings. Multiple moving parts 201 can slide horizontally along the track 6 to adjust their spacing, allowing the fitting groove 7 inside the clamp 2 to fit against the protrusion 102 of the gearbox 101. At this time, the radially arranged anti-slip grooves 701 within the fitting groove 7 increase friction and prevent slippage. The long parallel section of the L-shaped plate 202 forms an anti-overturning lever arm, which, together with the design of the reinforcing rib 3 and the two side wing plates 5 close to the track component 6, ensures clamping stability. During maintenance, multiple hydraulic cylinders 602 in the base component 601 simultaneously lift the track component 6 and the gearbox 101. The limiting component 8 slides vertically along the limiting groove of the base component 601, which, together with the L-shaped component 801, enhances the anti-eccentric load capacity and realizes the height adjustment of the gearbox 101 without shaking. The trapezoidal base plate 9 can be rotated at a small angle to adjust the maintenance posture. The bottom rubber strip 902 provides buffer protection, and the stabilizing component 901 prevents the center of gravity from shifting, thus adapting to the maintenance needs of gearboxes of different specifications and avoiding direct contact with internal components to prevent damage.

[0059] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0060] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A modular gearbox maintenance bracket, comprising a maintenance frame (1) and a gearbox body (101), wherein the surface of the gearbox body (101) is provided with protrusions (102), characterized in that: The maintenance frame (1) includes a track component (6), and a plurality of moving parts (201) are slidably connected to the inner wall of the track component (6). The top of the moving part (201) is provided with an L-shaped groove (203). The inner wall of the L-shaped groove (203) is slidably connected to an L-shaped plate (202), the length of the parallel section of the L-shaped plate (202) is greater than the height of the vertical section of the L-shaped plate (202), and a clamp (2) is fixed to the top of the L-shaped plate (202).

2. The modular gearbox maintenance bracket according to claim 1, characterized in that: A reinforcing rib (3) is fixed at the connection between the parallel section and the vertical section of the L-shaped plate (202). A reinforcing rib (3) is fixed at the top of the L-shaped plate (202) near the parallel section. The top of the reinforcing rib (3) is fixed to the bottom of the clamp (2). A sliding groove is provided at the corresponding position of the L-shaped groove (203) and the reinforcing rib (3).

3. The modular gearbox maintenance bracket according to claim 1, characterized in that: The bottom of the moving part (201) is provided with multiple threaded holes (4), and the top of the clamp (2) is provided with threaded holes (4) corresponding to the threaded holes (4) of the moving part (201). The top of the inner wall of the threaded hole (4) of the clamp (2) is provided with a stop groove (401). The diameter of the stop groove (401) is larger than the diameter of the threaded hole (4), and a rubber ring is glued to the bottom of the inner wall of the stop groove (401).

4. The modular gearbox maintenance bracket according to claim 1, characterized in that: Both sides of the clamp (2) are fixed with wing plates (5), the length of the wing plates (5) is equal to the length of the clamp (2), and the distance between the wing plates (5) and the top of the track component (6) is no more than 3 mm.

5. The modular gearbox maintenance bracket according to claim 1, characterized in that: Each of the multiple clamps (2) has an adapter groove (7) on one side opposite to the other. The bottom and top of the inner wall of the adapter groove (7) are provided with multiple anti-slip grooves (701) in a linear array. The grooves of the anti-slip grooves (701) are oriented toward the center of the adapter groove (7).

6. The modular gearbox maintenance bracket according to claim 1, characterized in that: The maintenance frame (1) also includes a base (601), on the inner wall of which a plurality of hydraulic cylinders (602) are fixed, and on the top of the hydraulic cylinders (602) a track component (6) is fixed.

7. The modular gearbox maintenance bracket according to claim 1, characterized in that: The bottom of the track component (6) is fixed with a plurality of L-shaped components (801). One side of the L-shaped component (801) is slidably connected to one side of the base component (601). One side of the L-shaped component (801) is fixed with a limiting component (8). The top of the limiting component (8) is fixed to the bottom of the track component (6). The top of the base component (601) is provided with a plurality of limiting grooves. The inner wall of the limiting groove is slidably connected to the surface of the limiting component (8). The height of the limiting component (8) and the depth of the limiting groove are equal and both are greater than the maximum extension distance of the hydraulic cylinder (602).

8. The modular gearbox maintenance bracket according to claim 6, characterized in that: The base (601) has a trapezoidal base plate (9) rotatably connected to its bottom side via a pivot. A stabilizing component (901) is fixed to the side of the trapezoidal base plate (9) away from the maintenance frame (1). Both ends of the base (601) are fixed with bottom-contact adhesive strips (902).

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