Auxiliary tool for disassembling and assembling steel plate spring

Abstract

The utility model provides an auxiliary tool for disassembling and assembling a steel plate spring. The auxiliary tool comprises a movable base, a lifting mechanism and a limiting mechanism which are connected. The lifting mechanism and the limiting mechanism are both located on the movable base, and the lifting mechanism and the limiting mechanism are both used for applying acting force to the steel plate spring so as to jointly assist in completing disassembly and assembly of the steel plate spring. The stability of the steel plate spring in the disassembly and assembly process is facilitated, the limiting mechanism can limit the steel plate spring in the width direction in the elastic change process of the steel plate spring, deformation of the steel plate spring in the width direction is avoided, and the effect of protecting the steel plate spring is achieved; and by arranging the movable base, the positions of the lifting mechanism and the limiting mechanism can be flexibly moved to the position where the steel plate spring is disassembled and assembled, and the disassembly and assembly efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of disassembly and assembly, in particular to a leaf spring disassembly and assembly auxiliary tool. Background Art

[0002] Leaf springs are the most widely used elastic elements in automobile suspensions. When disassembling and repairing them or conducting structural teaching, they often need to be disassembled and assembled quickly. Disassembling and assembling leaf springs requires moving them to a repair workshop with the help of special tools, which is time-consuming and labor-intensive, seriously affecting vehicle maintenance efficiency and teaching and training efficiency. Utility Model Content

[0003] In view of this, the purpose of the present invention is to provide a leaf spring disassembly and assembly auxiliary tool to solve the problem of low efficiency in disassembly and assembly of leaf springs.

[0004] Based on the above purpose, the utility model provides a leaf spring disassembly and assembly auxiliary tool, comprising a movable base, a lifting mechanism and a limiting mechanism connected to each other;

[0005] The lifting mechanism and the limiting mechanism are both located on the movable base, and are used to apply force to the leaf spring to jointly assist in completing the disassembly and assembly of the leaf spring.

[0006] Furthermore, the lifting mechanism includes two hydraulic jacks, and the limiting mechanism includes two limiting plates and a top plate. The two limiting plates are arranged opposite to each other, and the two hydraulic jacks are located between the two limiting plates and are spaced apart in the length direction of the limiting plates. The top plate is located between the two limiting plates and connects the two limiting plates.

[0007] Furthermore, the lifting mechanism also includes a jack slide rail, which is located on the movable base. One end of the hydraulic jack is connected to the jack slide rail so as to move within the jack slide rail.

[0008] Furthermore, the limiting mechanism also includes a limiting plate slide rail, the limiting plate slide rail is located on the movable base, and one end of the limiting plate is connected to the limiting plate slide rail to move within the limiting plate slide rail.

[0009] Furthermore, the movable base includes a movable lifting assembly and a connecting piece connected to each other, and the lifting mechanism and the limiting mechanism are both connected to the connecting piece.

[0010] Furthermore, the movable lifting component is a ground bull, and the connecting member is a connecting plate, and the connecting plate is located on the ground bull so as to rise and fall with the ground bull.

[0011] Furthermore, one of the limit plates is fixedly connected to the movable base, and the other limit plate is connected to the movable base via the limit plate slide rail.

[0012] Furthermore, the disassembly and assembly trailer also includes a battery, and the hydraulic jack, the jack slide rail and the limit plate slide rail are all connected to the battery.

[0013] Furthermore, the connection between the top plate and the limiting plate is a detachable connection.

[0014] Furthermore, the limiting plate is provided with a slot adapted to the top plate, and the top plate is connected to the slots on the two limiting plates to be connected to the limiting plates.

[0015] As can be seen from the above description, the utility model provides a leaf spring disassembly and assembly auxiliary tool. By providing a lifting mechanism and a limiting mechanism, when the leaf spring is disassembled and assembled, the lifting mechanism can be adjusted according to the height of the leaf spring to abut against the leaf spring, so that the leaf spring is stably set in the height direction during the disassembly and assembly process. The limiting mechanism can be flexibly set according to the width of the leaf spring to limit the width and height of the leaf spring, so that the leaf spring is stably set in the width direction during the disassembly and assembly process. The leaf spring is elastic in its height direction. The setting of the lifting mechanism can reduce the elasticity of the leaf spring in its height direction (i.e., the elastic direction) during the disassembly and assembly of the leaf spring, which is beneficial to the stability of the leaf spring during the disassembly and assembly process. The setting of the limiting mechanism can limit the leaf spring in the width direction during the elastic change of the leaf spring, thereby preventing the leaf spring from deforming in the width direction, playing a role in protecting the leaf spring, and making the leaf spring relatively stable during the disassembly and assembly process. By providing a movable base, the positions of the lifting mechanism and the limiting mechanism can be flexibly moved to the position where the leaf spring is disassembled and assembled, which is beneficial to improving the disassembly and assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the leaf spring disassembly and assembly auxiliary tool according to an embodiment of the utility model.

[0018] In the figure: 10, mobile base; 11, mobile lifting assembly; 12, connecting piece; 20, lifting mechanism; 21, hydraulic jack; 22, jack slide rail; 30, limit mechanism; 31, limit plate; 311, slot; 32, top plate (not shown in the figure); 33, limit plate slide rail; 40, battery. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0020] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present invention should have the usual meanings understood by people with ordinary skills in the field to which this application belongs. The "first", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative position relationships. When the absolute position of the described object changes, the relative position relationship may also change accordingly.

[0021] As described in the background technology, leaf springs are the most widely used elastic elements in automobile suspensions. When disassembling and repairing them or conducting structural teaching, they often need to be disassembled and assembled quickly. Disassembling and assembling leaf springs requires transporting them to a repair workshop with the help of special tools, which is time-consuming and labor-intensive. Improper operation can easily cause human damage to the spring leaves, seriously affecting vehicle maintenance efficiency and teaching and training safety.

[0022] Based on this, the present application proposes a leaf spring disassembly and assembly auxiliary tool to improve the disassembly and assembly efficiency during leaf spring disassembly, maintenance and structure teaching.

[0023] The following is a detailed description through one or more specific embodiments. This application provides a leaf spring disassembly and assembly auxiliary tool, such as Figure 1 As shown, it includes a movable base 10, a lifting mechanism 20 and a limiting mechanism 30 connected to each other;

[0024] The lifting mechanism 20 and the limiting mechanism 30 are both located on the movable base 10 . The lifting mechanism 20 and the limiting mechanism 30 are both used to apply force to the leaf spring to jointly assist in completing the disassembly and assembly of the leaf spring.

[0025] Specifically, the lifting mechanism 20 is used to lift the leaf spring, counteracting the elastic force of the leaf spring and balancing the elastic force of the leaf spring, so that the leaf spring abuts against the limiting mechanism 30 in the height direction. The leaf spring is fixed relative to the vehicle. The limiting mechanism 30 is used to limit the width of the leaf spring to prevent the leaf spring from shifting in the width direction during the lifting action of the lifting mechanism 20, which could cause changes in the leaf spring's appearance and affect its function.

[0026] The movable base 10 can drive the lifting mechanism 20 and the limiting mechanism 30 to move to the position where the leaf spring is disassembled and assembled, avoiding moving the position of the vehicle where the leaf spring is located, improving the flexibility of the disassembly and assembly trailer, and helping to improve the disassembly and assembly efficiency of the leaf spring by the disassembly and assembly trailer.

[0027] When using the disassembly and assembly trailer to disassemble the leaf spring, first move the disassembly and assembly trailer to the bottom of the leaf spring so that the limiting mechanism 30 limits the width and height directions of the leaf spring. Secondly, start the lifting mechanism 20 so that the lifting mechanism 20 lifts the leaf spring until the leaf spring abuts against the limiting mechanism 30 in the height direction and is stable relative to the vehicle where the leaf spring is located (that is, offsets the elastic force of the leaf spring). Finally, the operator can perform the disassembly operation of the leaf spring. During the process, the leaf spring is stable and will not cause damage to the operator. The operator does not need to fix the leaf spring, which can further avoid damage to the leaf spring and is conducive to improving the disassembly efficiency of the leaf spring.

[0028] In this embodiment, by providing the lifting mechanism 20 and the limiting mechanism 30, when the leaf spring is disassembled and assembled, the lifting mechanism 20 can be adjusted according to the height of the leaf spring to abut against the leaf spring, so that the leaf spring is stably arranged in the height direction during the disassembly and assembly process. The limiting mechanism 30 can be flexibly set according to the width of the leaf spring to limit the width and height of the leaf spring, so that the leaf spring is stably arranged in the width direction during the disassembly and assembly process. The leaf spring is elastic in its height direction. The provision of the lifting mechanism 20 can reduce the elasticity of the leaf spring in its height direction (i.e., the elastic direction) during the disassembly and assembly process, which is beneficial to the stability of the leaf spring during the disassembly and assembly process. The provision of the limiting mechanism 30 can limit the leaf spring in the width direction during the elastic change of the leaf spring, thereby preventing the leaf spring from deforming in the width direction, playing a role in protecting the leaf spring, and ensuring that the leaf spring is relatively stably arranged during the disassembly and assembly process. By providing the movable base 10, the positions of the lifting mechanism 20 and the limiting mechanism 30 can be flexibly moved to the position where the leaf spring is to be disassembled and assembled, which is beneficial to improving the disassembly and assembly efficiency.

[0029] In some embodiments, the lifting mechanism 20 includes two hydraulic jacks 21, and the limiting mechanism 30 includes two limiting plates 31 and a top plate 32. The two limiting plates 31 are arranged opposite to each other, and the two hydraulic jacks 21 are located between the two limiting plates 31 and are spaced apart in the length direction of the limiting plates 31. The top plate 32 is located between the two limiting plates 31 and connects the two limiting plates 31.

[0030] Specifically, the lifting mechanism 20 uses the hydraulic jack 21 to lift and jack up the leaf spring, and the limiting mechanism 30 uses two limiting plates 31 to limit the width of the leaf spring. The two hydraulic jacks 21 correspond to the two elastic positions of the leaf spring and are symmetrically arranged relative to the center of the leaf spring to achieve uniform lifting of the leaf spring and avoid uneven height of the leaf spring. The limiting plates 31 are respectively located on both sides of the leaf spring and are perpendicular to the direction of the lifting mechanism 20, that is, the limiting plates 31 are located on both sides of the center position of the leaf spring to uniformly limit the leaf spring and avoid the situation where the widths of the leaf springs are different, which affects the performance of the leaf spring. The top plate 32 is located between the two limiting plates 31 to limit the leaf spring in the height direction, so that the leaf spring abuts against the top plate 32 under the lifting action of the lifting mechanism 20, which is beneficial to the stability of the leaf spring in the height direction, and further beneficial to the disassembly and assembly stability of the leaf spring.

[0031] It should be noted that in order to ensure the limiting performance of the limiting mechanism 30, the stiffness of the limiting plate 31 must be no less than the stiffness of the leaf spring. The material of the limiting plate 31 can be steel or other materials to meet the limiting performance.

[0032] In this embodiment, the setting of the limiting mechanism 30 and the lifting mechanism 20 can apply a uniform force to the leaf spring, which is beneficial to the stability of the action of the disassembly and assembly trailer on the leaf spring when assisting in the disassembly and assembly of the leaf spring, thereby avoiding damage to the leaf spring.

[0033] In some embodiments, the lifting mechanism 20 further includes a jack rail 22 , which is located on the mobile base 10 , and one end of the hydraulic jack 21 is connected to the jack rail 22 to move within the jack rail 22 .

[0034] Specifically, the connection between the hydraulic jack 21 and the mobile base 10 is a sliding connection, and the hydraulic jack 21 is slidably connected to the mobile base 10 through the jack slide rail 22. The setting of the jack slide rail 22 enables the position of the hydraulic jack 21 on the mobile base 10 to be flexibly adjusted according to the length of the leaf spring to be assisted in disassembling and assembling, which is beneficial to the stabilizing effect of the lifting mechanism 20 on the leaf spring and improves the practicality of the disassembly and assembly trailer.

[0035] In some embodiments, the limiting mechanism 30 further includes a limiting plate 31 slide rail, the limiting plate 31 slide rail is located on the movable base 10, and one end of the limiting plate 31 is connected to the limiting plate 31 slide rail to move within the limiting plate 31 slide rail.

[0036] Specifically, the connection between the limit plate 31 and the mobile base 10 is a sliding connection, and the limit plate 31 is slidably connected to the mobile base 10 through the limit plate 31 slide rail. The setting of the limit plate 31 slide rail enables the position of the limit plate 31 on the mobile base 10 to be flexibly adjusted according to the width size of the steel leaf spring to be assisted in disassembling and assembling, which is beneficial for the limit mechanism 30 to exert a limiting effect on the steel leaf spring, thereby improving the practicality of the disassembly and assembly trailer.

[0037] It should be noted that the length of the top plate 32 is adapted to the length of the slide rail of the limiting plate 31, which can meet the usage requirements of the limiting plate 31 at different positions on the slide rail of the limiting plate 31, which is conducive to improving the practicality of the disassembly and assembly trailer.

[0038] In some embodiments, the movable base 10 includes a movable lifting assembly 11 and a connecting member 12 connected to each other, and the lifting mechanism 20 and the limiting mechanism 30 are both connected to the connecting member 12 .

[0039] Specifically, the mobile lifting assembly 11 has the ability to move and lift, and the connecting member 12 is connected to the mobile lifting assembly 11 so that the lifting mechanism 20 and the limiting mechanism 30 are connected to the mobile lifting assembly 11, thereby enabling the lifting mechanism 20 and the limiting mechanism 30 to move and lift with the mobile lifting assembly 11.

[0040] In this embodiment, the mobile lifting assembly 11 enables the mobile base 10 to have not only mobile performance but also lifting performance. Its lifting performance can drive the lifting mechanism 20 and the limiting mechanism 30 to rise and fall to adapt to the different heights of the leaf springs, so that the disassembly and assembly trailer can assist the leaf springs of different heights, which is beneficial to improving the practicality and promotion and application performance of the disassembly and assembly trailer.

[0041] In some embodiments, the movable lifting component 11 is a ground bull, and the connecting member 12 is a connecting plate. The connecting plate is located on the ground bull so as to rise and fall with the ground bull.

[0042] Specifically, the ground bull has the performance of movement and lifting, and the connecting plate can set the lifting position of the ground bull to a flat plate structure, which is beneficial to the setting of the lifting mechanism 20 and the limiting mechanism 30.

[0043] In some embodiments, one of the limiting plates 31 is fixedly connected to the movable base 10 , and the other limiting plate 31 is connected to the movable base 10 via a sliding rail of the limiting plate 31 .

[0044] Specifically, in the limiting mechanism 30, one limiting plate 31 is fixedly arranged, and the other limiting plate 31 can move in the sliding rail of the limiting plate 31 to adjust the distance between the two limiting plates 31 to adapt to the steel leaf springs of different widths. This does not affect the flexibility of the limiting mechanism 30, and can also simplify the adjustment of the spacing between the limiting plates 31, avoiding the adjustment of the two limiting plates 31, which is beneficial to the practicality and promotion and application of the disassembly and assembly trailer.

[0045] In some embodiments, the disassembly and assembly trailer further includes a battery 40 , and the hydraulic jack 21 , the jack slide rail 22 , and the limit plate 31 slide rail are all connected to the battery 40 .

[0046] Specifically, the hydraulic jack 21, the jack slide 22 and the limit plate 31 slide are all electronically controlled devices. The battery 40 can provide power support to the hydraulic jack 21, the jack slide 22 and the limit plate 31 slide, while also improving the independence of the disassembly and assembly trailer, so that the disassembly and assembly trailer is not affected by other structures and can be used independently.

[0047] In some embodiments, the connection between the top plate 32 and the limiting plate 31 is a detachable connection.

[0048] Specifically, the connection between the top plate 32 and the limiting plate 31 is a detachable connection, so that the top plate 32 does not affect the flexible adjustment of the distance between the two limiting plates 31, thereby improving the flexibility and practicality of the limiting mechanism 30.

[0049] In some embodiments, a slot 311 adapted to the top plate 32 is provided on the limiting plate 31 , and the top plate 32 is connected to the slots 311 on the two limiting plates 31 to be connected to the limiting plates 31 .

[0050] Specifically, the top plate 32 and the limiting plates 31 are detachably connected via the slots 311. The ends of the top plate 32 pass through the slots 311 on the two limiting plates 31, respectively, to achieve detachable connection with the limiting plates 31. The slots 311 are adapted to the thickness and width of the top plate 32, so that the top plate 32 and the limiting plates 31 are stably connected.

[0051] It should be noted that the limiting plate 31 is provided with a plurality of slots 311 of different heights, so that the height of the top plate 32 relative to the limiting plate 31 can be flexibly adjusted to adapt to different leaf springs, which is beneficial to improving the practicality of the disassembly and assembly trailer.

[0052] Exemplarily, when disassembling the leaf spring, place the leaf spring on the disassembly and assembly trailer, adjust the positions of the limit plates 31 on both sides of the leaf spring, insert the top plate 32 into the slot 311 to limit the top surface of the leaf spring, control the hydraulic jack 21 to rise, and make the hydraulic jacks 21 at both ends lift the two ends of the leaf spring. Since the middle of the leaf spring is limited by the top plate 32, the leaf spring will gradually straighten from a bent shape, remove the U-bolt on the leaf spring, and take out the leaf spring.

[0053] When reinstalling the leaf springs, place the leaf springs on the hydraulic jacks 21 in order from long to short, adjust the positions of the limit plates 31 on both sides, insert the top plate 32 into the slot 311, control the hydraulic jacks 21 to rise, so that the hydraulic jacks 21 at both ends lift up the two ends of the leaf spring. Due to the limit of the top plate 32 in the middle, the leaf spring will gradually straighten from the bent shape, and install the U-bolts to fix the leaf spring.

[0054] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present application (including the claims) is limited to these examples. Within the scope of the present invention, the technical features of the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0055] The embodiments of the present invention are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A leaf spring disassembly and assembly auxiliary tool, characterized in that: It includes a mobile base, a lifting mechanism and a limiting mechanism that are connected; The lifting mechanism and the limiting mechanism are both located on the movable base, and are used to apply force to the leaf spring to jointly assist in completing the disassembly and assembly of the leaf spring.

2. The leaf spring disassembly and assembly auxiliary tool according to claim 1, characterized in that: The lifting mechanism includes two hydraulic jacks, and the limiting mechanism includes two limiting plates and a top plate. The two limiting plates are arranged opposite to each other, and the two hydraulic jacks are located between the two limiting plates and are spaced apart in the length direction of the limiting plates. The top plate is located between the two limiting plates and connects the two limiting plates.

3. The leaf spring disassembly and assembly auxiliary tool according to claim 2, characterized in that: The lifting mechanism further comprises a jack slide rail, which is located on the movable base. One end of the hydraulic jack is connected to the jack slide rail so as to move within the jack slide rail.

4. The leaf spring disassembly and assembly auxiliary tool according to claim 3, characterized in that: The limiting mechanism further includes a limiting plate slide rail, which is located on the movable base. One end of the limiting plate is connected to the limiting plate slide rail so as to move within the limiting plate slide rail.

5. The leaf spring disassembly and assembly auxiliary tool according to claim 1, characterized in that: The movable base comprises a movable lifting assembly and a connecting piece connected to each other, and the lifting mechanism and the limiting mechanism are both connected to the connecting piece.

6. The leaf spring disassembly and assembly auxiliary tool according to claim 5, characterized in that: The movable lifting component is a ground bull, and the connecting member is a connecting plate. The connecting plate is located on the ground bull so as to rise and fall with the ground bull.

7. The leaf spring disassembly and assembly auxiliary tool according to claim 4, characterized in that: One of the limit plates is fixedly connected to the movable base, and the other limit plate is connected to the movable base via the limit plate slide rail.

8. The leaf spring disassembly and assembly auxiliary tool according to claim 4, characterized in that: It also includes a battery, and the hydraulic jack, the jack slide rail and the limit plate slide rail are all connected to the battery.

9. The leaf spring disassembly and assembly auxiliary tool according to claim 2, characterized in that: The connection between the top plate and the limiting plate is a detachable connection.

10. The leaf spring disassembly and assembly auxiliary tool according to claim 9, characterized in that: The limiting plate is provided with a slot adapted to the top plate, and the top plate is connected to the slots on the two limiting plates to be connected to the limiting plates.

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