Front axle hoisting assembly and hoisting device

Abstract

The utility model discloses a front axle hoisting assembly and a hoisting device. The front axle hoisting assembly comprises a suspension device, a width-variable fixing frame, a first limiting rod and a second limiting rod, the width-variable fixing frame comprises two half-body supporting arms with the same left and right structures, the horizontal parts of the two half-body supporting arms are overlapped with each other, and long-strip-shaped holes are formed in the overlapped parts of the two half-body supporting arms; the lower portion of the suspension device is slidably sleeved with the long-strip-shaped holes of the two half-body supporting arms which are overlapped, and the upper end and the lower end of the suspension device are fixed to the corresponding end faces of the two half-body supporting arms in a screwed mode. The first limiting rod and the second limiting rod are symmetrically screwed on the side walls of the two half supporting arms respectively; according to the utility model, the problem that the front axle is unstable in hoisting and easy to roll over when being mounted on the rack is effectively solved, and the damage to the strain gauges in the hoisting process of the front axle is effectively avoided; the front axle hoisting operability is achieved, the operation safety is improved, and the device is low in cost, high in universality, wide in application range and capable of being used for hoisting a rear axle and a plate spring of a commercial vehicle.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile hoisting equipment, in particular to a front axle hoisting device. Background Art

[0002] Before the rigidity test of the front axle sample is carried out, the sample needs to be hoisted onto the test bench. At present, due to the lack of special hoisting equipment, the front axle sample must be hoisted with a lifting rope each time, which requires the cooperation of multiple people and is extremely unstable during hoisting. It is easy to overturn and damage the strain gauge. It is not easy to operate, time-consuming and labor-intensive, and it is also easy to cause injuries. Utility Model Content

[0003] In order to solve the above problems, the utility model provides a front axle lifting device, which effectively solves the problem that the front axle is unstable and easy to overturn when being lifted on a platform, and effectively avoids damage to the strain gauge during the lifting process of the front axle; realizes the operability of the front axle lifting and improves the safety of operation. The device has low cost, strong versatility, and a wide range of applications. It can also be used for the lifting of rear axles and leaf springs of commercial vehicles.

[0004] The utility model provides a front axle hoisting assembly, comprising a suspension device, a variable width fixing frame, a first limiting rod and a second limiting rod;

[0005] The variable width fixing frame includes two half support arms with the same left and right structures. The two half support arms with the same structures can save the processing cost of parts. Only one mold is needed to process and produce the two half parts of the variable width fixing frame. The horizontal parts of the two half support arms are overlapped with each other, and the overlapping parts of the two half support arms are both provided with long strip holes.

[0006] The lower part of the suspension device is slidably sleeved in the long holes of the two superimposed half support arms, and the upper and lower ends of the suspension device are screwed and fixed on the corresponding end surfaces of the two half support arms. The suspension device is inserted into the long holes of the two half support arms, and one of its functions is to enable the two half support arms to stretch and retract to the left and right sides according to the different widths of the front axle; the second function is that since the front axle lifting assembly appears in pairs when used on the front axle, the front axle lifting assembly is respectively arranged at the front and rear ends of the I-beam of the front axle, which can ensure the balance of the front axle in the front and rear directions. If the suspension device of each front axle lifting assembly is only fixedly arranged in the middle of the two half support arms, the center of gravity of the front axle may shift in the left and right directions, which will also cause collision and damage to the strain gauge; the suspension device applied for by the utility model can be adjusted and fixed left and right along the long holes of the two half support arms, and the left and right balance of the front axle can be adjusted at any time during the suspension process to avoid collision and damage to the strain gauge caused by left and right imbalance of the front axle;

[0007] The first limit rod and the second limit rod are symmetrically screwed on the side walls of the two half-body support arms respectively. The function of the first limit rod and the second limit rod is to limit and fix the longitudinal beam in the middle of the I-beam of the front axle in the Y direction (left and right) and X direction (front and back). At the same time, the first limit rod and the second limit rod can also adjust the position of the front axle lifting assembly in the front and back directions of the I-beam to maintain the balance of the front axle in the front and back directions.

[0008] Each half-body support arm is a right-angle structure formed by bending a sheet, which includes a horizontal arm and a vertical arm. A long hole is opened in the length direction of the end face of the horizontal arm. The two horizontal arms are superimposed on each other. The long hole that penetrates the two superimposed horizontal arms at the lower part of the suspension device is exposed outside the lower end face of the horizontal arm of the lower half-body support arm. The upper and lower parts of the suspension device are respectively screwed and fixed to the upper and lower end faces of the two superimposed half-body support arms. The first limit rod and the second limit rod are respectively screwed to the symmetrical positions of the vertical arms of the two half-body support arms.

[0009] The suspension device includes a lifting ring, a threaded rod, a first washer, a second washer and a first nut; the lifting ring is integrally formed with the threaded rod, the threaded rod passes through the first washer, the long holes of the two half-body support arms and the second washer and is screwed and fixed with the first nut respectively, the lifting ring at the upper end of the threaded rod is crimped with the upper end face of the first washer, the lower end face of the first washer is crimped with the upper end face of the upper half-body support arm, the lower end face of the upper half-body support arm is crimped with the upper end face of the lower half-body support arm, the lower end face of the lower half-body support arm is crimped with the upper end face of the second washer, the lower end face of the second washer is crimped with the upper end face of the first nut, the lifting ring, the threaded rod and the first nut screw and limit the half-body support arms to fix them. This structure can realize the left and right width adjustment of the two half-body support arms before lifting the front axle to adapt to the width of the corresponding position of the front axle.

[0010] The suspension device also includes a second nut, the second nut is threadedly connected to the upper portion of the threaded rod, and the lower portion of the threaded rod threadedly connected to the second nut passes through the first washer, the long strip holes of the two half support arms, and the second washer is screwed and fixed to the first nut. The suspension device with the second nut added can realize the left and right width adjustment of the two half support arms before lifting the front axle to adapt to the width of the corresponding position of the front axle. At the same time, it can also realize the left and right suspension center of gravity adjustment of a pair of front axle lifting assemblies after lifting the front axle (because the horizontal displacement of the first limit rod and the second limit rod of each suspension device screwed on the two half support arms may have deviations, resulting in the front end of the first limit rod and the second limit rod being screwed The I-beam vertical support arm of the front axle that is in contact with the limit position of the front end of the positioning rod is not directly below the hanging point of the lifting ring of the suspension device. After the two front axle lifting assemblies and the front axle lifting are lifted, the front axle may be unbalanced and tilted left and right) to make the front axle balanced left and right and avoid damage to the strain gauge caused by the left and right imbalance of the front axle. If the front axle tilts left and right after lifting, the second nut can be loosened to make it rise along the threaded rod, and the second nut can be released to limit the upper half support arm. Then, the threaded rod of a front axle lifting assembly can be pushed to move left and right until the front axles lifted by the two front axle lifting assemblies are in a left and right balanced state, and then the second nut is tightened to limit and fix the upper and lower ends of the suspension device to the two half support arms.

[0011] A horizontal limit bolt is screwed on the side wall of the first nut, and the front end of the horizontal limit bolt can be in limiting contact with the side wall of the threaded rod. This structure can limit the first nut from freely rotating and loosening from the screwed and tightened position, to avoid the front axle lifting assembly adjusting the suspension device to the left and right balance points on the two half support arms after suspending the front axle. After the second nut on the upper part is loosened, the two half support arms are affected by the downward gravity of the front axle to exert a downward force on the first nut, causing the screw to loosen and fall off the threaded rod, thereby causing an accident in which one end of the front axle falls off and is damaged.

[0012] A pair of guide rods are protrudingly provided on the corresponding end faces of the first washer or the second washer, and a pair of sleeve blind holes are provided at the positions of the second washer or the first washer corresponding to the pair of guide rods. The lower ends of the pair of guide rods are correspondingly inserted into the pair of sleeve blind holes, and the middle parts of the pair of guide rods are accommodated in the long holes of the two half-body support arms, and the pair of guide rods can slide left and right along the long holes of the two half-body support arms. The guide rods are arranged to prevent the moving paths of the two half-body support arms from not being in a straight line when extending or retracting left and right. After the suspension device is fixed on the two superimposed half-body support arms, the first limit rod and the second limit rod cannot remain in a straight line when limiting and clamping the I-beam longitudinal beam of the front axle, thereby causing the left and right and front and rear limit failure of one end of the I-beam longitudinal beam.

[0013] A third limit rod is fixed between the lower parts of the vertical arms of the two half support arms. The third limit rod is arranged to support the lower end surface of the I-beam of the front axle so as to limit and fix the front axle in the Z direction (up and down direction) to prevent the upper and lower ends of the front axle from shaking during the lifting process.

[0014] A front axle lifting device comprises a pair of the front axle lifting assemblies, and also comprises a front axle, wherein the front and rear ends of the I-beam in the middle of the front axle are respectively detachably and fixedly connected with a front axle lifting assembly; the front end of the first limit rod and the front end of the second limit rod of each front axle lifting assembly are respectively limited and contacted with one side of the vertical wall in the middle of the I-beam, and the middle part of the third limit rod of each front axle lifting assembly is limited and contacted with the lower end surface of the I-beam at the corresponding position, the first limit rod and the second limit rod limit the displacement of the front axle in the X and Y directions and limit the upward displacement of the front axle in the Z direction, and the third limit rod limits the downward displacement of the front axle in the Z direction.

[0015] Beneficial Effects

[0016] The utility model effectively solves the problem that the front axle is unstable and prone to overturning when being hoisted onto the platform, and effectively avoids damage to the strain gauge during the hoisting process of the front axle; realizes the operability of the front axle hoisting and improves the safety of operation. The device has low cost, strong versatility, and a wide range of applications, and can also be used for the hoisting of rear axles and leaf springs of commercial vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 It is a schematic diagram of the exploded structure of the utility model.

[0019] Figure 3 This is a schematic diagram of the working principle and structure of the utility model. Figure 1 .

[0020] Figure 4 This is a schematic diagram of the working principle and structure of the utility model. Figure 2 .

[0021] Figure 5 It is a schematic diagram of the exploded structure of the second embodiment of the utility model.

[0022] Figure 6 It is a schematic diagram of the exploded structure of the third embodiment of the utility model.

[0023] In the figure:

[0024] 1. Suspension device; 11. Lifting ring; 12. Threaded rod; 13. First washer; 14. Second washer; 15. First nut; 16. Second nut; 17. Horizontal limit bolt; 18. Guide rod; 19. Socket blind hole;

[0025] 2. Variable width fixed frame; 21. Half body support arm; 211. Horizontal arm; 212. Vertical arm; 213. Long strip hole;

[0026] 3. The first limit rod;

[0027] 4. The second limit rod;

[0028] 5. The third limit rod;

[0029] 6. Front axle; 61. I-beam; 611. Vertical wall. DETAILED DESCRIPTION

[0030] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the present invention are further described below in conjunction with the accompanying drawings and through specific implementation methods. It is understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for the convenience of description, only the parts related to the present invention are shown in the accompanying drawings, rather than all of them.

[0031] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Example 1

[0034] See also Figure 1-Figure 4 As shown, a front axle hoisting assembly includes a suspension device 1, a variable width fixing frame 2, a first limiting rod 3 and a second limiting rod 4;

[0035] The variable width fixing frame 2 comprises two half support arms 21 with the same left and right structures, the horizontal parts of the two half support arms 21 overlap each other, and the overlapping parts of the two half support arms 21 are both provided with long holes;

[0036] The lower part of the suspension device 1 is slidably sleeved in the long holes of the two superimposed half support arms 21, and the upper and lower ends of the suspension device 1 are screwed and fixed on the corresponding end surfaces of the two half support arms 21;

[0037] The first limiting rod 3 and the second limiting rod 4 are symmetrically screwed on the side walls of the two half support arms 21 .

[0038] Each half support arm 21 is a right-angle structure formed by bending a sheet, which includes a horizontal arm 211 and a vertical arm 212. A long hole 213 is opened in the length direction of the end face of the horizontal arm 211. The two horizontal arms 211 are superimposed on each other. The long hole 213 that penetrates the two superimposed horizontal arms 211 at the lower part of the suspension device 1 is exposed outside the lower end face of the horizontal arm 211 of the lower half support arm 21. The upper and lower parts of the suspension device 1 are respectively screwed and fixed to the upper and lower end faces of the two superimposed half support arms 21. The first limit rod 3 and the second limit rod 4 are respectively screwed to the symmetrical positions of the vertical arms 212 of the two half support arms 21.

[0039] The suspension device 1 includes a lifting ring 11, a threaded rod 12, a first washer 13, a second washer 14 and a first nut 15; the lifting ring 11 and the threaded rod 12 are integrally formed, and the threaded rod 12 passes through the first washer 13, the long holes 213 of the two half support arms 21 and the second washer 14 and is screwed and fixed with the first nut 15.

[0040] A third limiting rod 5 is fixedly disposed between the lower parts of the vertical arms 212 of the two half support arms 21 .

[0041] Example 2

[0042] See also Figure 5 As shown, a front axle hoisting assembly includes a suspension device 1, a variable width fixing frame 2, a first limiting rod 3 and a second limiting rod 4;

[0043] The variable width fixing frame 2 comprises two half support arms 21 with the same left and right structures, the horizontal parts of the two half support arms 21 overlap each other, and the overlapping parts of the two half support arms 21 are both provided with long holes;

[0044] The lower part of the suspension device 1 is slidably sleeved in the long holes of the two superimposed half support arms 21, and the upper and lower ends of the suspension device 1 are screwed and fixed on the corresponding end surfaces of the two half support arms 21;

[0045] The first limiting rod 3 and the second limiting rod 4 are symmetrically screwed on the side walls of the two half support arms 21 .

[0046] Each half support arm 21 is a right-angle structure formed by bending a sheet, which includes a horizontal arm 211 and a vertical arm 212. A long hole 213 is opened in the length direction of the end face of the horizontal arm 211. The two horizontal arms 211 are superimposed on each other. The long hole 213 that penetrates the two superimposed horizontal arms 211 at the lower part of the suspension device 1 is exposed outside the lower end face of the horizontal arm 211 of the lower half support arm 21. The upper and lower parts of the suspension device 1 are respectively screwed and fixed to the upper and lower end faces of the two superimposed half support arms 21. The first limit rod 3 and the second limit rod 4 are respectively screwed to the symmetrical positions of the vertical arms 212 of the two half support arms 21.

[0047] The suspension device 1 includes a lifting ring 11, a threaded rod 12, a first washer 13, a second washer 14 and a first nut 15; the lifting ring 11 and the threaded rod 12 are integrally formed, and the threaded rod 12 passes through the first washer 13, the long holes 213 of the two half support arms 21 and the second washer 14 and is screwed and fixed with the first nut 15.

[0048] The suspension device 1 also includes a second nut 16, which is threadedly connected to the upper part of the threaded rod 12. The lower part of the threaded rod 12 threadedly connected with the second nut 16 passes through the first washer 13, the long holes 213 of the two half support arms 21, and the second washer 14 and is screwed and fixed with the first nut 15.

[0049] A horizontal limiting bolt 17 is screwed onto the side wall of the first nut 15 , and the front end of the horizontal limiting bolt 17 can be in limiting contact with the side wall of the threaded rod.

[0050] A third limiting rod 5 is fixedly disposed between the lower parts of the vertical arms 212 of the two half support arms 21 .

[0051] Example 3

[0052] See also Figure 6 As shown, a front axle hoisting assembly includes a suspension device 1, a variable width fixing frame 2, a first limiting rod 3 and a second limiting rod 4;

[0053] The variable width fixing frame 2 comprises two half support arms 21 with the same left and right structures, the horizontal parts of the two half support arms 21 overlap each other, and the overlapping parts of the two half support arms 21 are both provided with long holes;

[0054] The lower part of the suspension device 1 is slidably sleeved in the long holes of the two superimposed half support arms 21, and the upper and lower ends of the suspension device 1 are screwed and fixed on the corresponding end surfaces of the two half support arms 21;

[0055] The first limiting rod 3 and the second limiting rod 4 are symmetrically screwed on the side walls of the two half support arms 21 .

[0056] Each half support arm 21 is a right-angle structure formed by bending a sheet, which includes a horizontal arm 211 and a vertical arm 212. A long hole 213 is opened in the length direction of the end face of the horizontal arm 211. The two horizontal arms 211 are superimposed on each other. The long hole 213 that penetrates the two superimposed horizontal arms 211 at the lower part of the suspension device 1 is exposed outside the lower end face of the horizontal arm 211 of the lower half support arm 21. The upper and lower parts of the suspension device 1 are respectively screwed and fixed to the upper and lower end faces of the two superimposed half support arms 21. The first limit rod 3 and the second limit rod 4 are respectively screwed to the symmetrical positions of the vertical arms 212 of the two half support arms 21.

[0057] The suspension device 1 includes a lifting ring 11, a threaded rod 12, a first washer 13, a second washer 14 and a first nut 15; the lifting ring 11 and the threaded rod 12 are integrally formed, and the threaded rod 12 passes through the first washer 13, the long holes 213 of the two half support arms 21 and the second washer 14 and is screwed and fixed with the first nut 15.

[0058] A pair of guide rods 18 are protrudingly provided on the corresponding end surfaces of the first washer 13 or the second washer 14, and a pair of sleeve blind holes 19 are provided at the positions of the second washer 14 or the first washer 13 corresponding to the pair of guide rods 18. The lower ends of the pair of guide rods 18 are correspondingly inserted into the pair of sleeve blind holes 19, and the middle parts of the pair of guide rods 18 are accommodated in the long holes 213 of the two half support arms 21, and the pair of guide rods 18 can slide left and right along the long holes 213 of the two half support arms 21.

[0059] A third limiting rod 5 is fixedly disposed between the lower parts of the vertical arms 212 of the two half support arms 21 .

[0060] Example 4

[0061] See also Figure 3-Figure 4 As shown, a front axle lifting device includes a pair of the front axle lifting assemblies described above, and also includes a front axle 6, wherein the front and rear ends of the I-beam 61 in the middle of the front axle 6 are respectively detachably and fixedly connected with a front axle lifting assembly; the front end of the first limit rod 3 and the front end of the second limit rod 4 of each front axle lifting assembly are respectively limited and contacted to one side of the vertical wall 611 in the middle of the I-beam 61, and the middle part of the third limit rod 5 of each front axle lifting assembly is limited and contacted to the lower end surface of the I-beam 61 at the corresponding position.

[0062] Although the present invention has been specifically demonstrated and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes may be made to the present invention in form and detail without departing from the spirit and scope of the present invention as defined in the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A front axle hoisting assembly, characterized in that: It comprises a suspension device (1), a variable width fixing frame (2), a first limiting rod (3) and a second limiting rod (4); The variable width fixing frame (2) comprises two half support arms (21) with the same left and right structures, the two half support arms (21) are overlapped at horizontal locations, and the overlapped locations of the two half support arms (21) are both provided with long holes; The lower part of the suspension device (1) is slidably sleeved in the long holes of the two half support arms (21) stacked on each other, and the upper and lower ends of the suspension device (1) are screwed and fixed on the corresponding end surfaces of the two half support arms (21); The first limiting rod (3) and the second limiting rod (4) are respectively and symmetrically screwed on the side walls of the two half-body support arms (21).

2. The front axle hoisting assembly according to claim 1, characterized in that: Each half-body support arm (21) is a right-angle structure formed by bending a sheet, and comprises a horizontal arm (211) and a vertical arm (212). A long hole (213) is provided in the length direction of the end face of the horizontal arm (211). The two horizontal arms (211) are superimposed on each other. The long hole (213) of the lower part of the suspension device (1) penetrates through the two superimposed horizontal arms (211) and is exposed outside the lower end face of the horizontal arm (211) of the lower half-body support arm (21). The upper and lower parts of the suspension device (1) are respectively screwed and fixed to the upper and lower end faces of the two superimposed half-body support arms (21). The first limiting rod (3) and the second limiting rod (4) are respectively screwed to the symmetrical positions of the vertical arms (212) of the two half-body support arms (21).

3. The front axle hoisting assembly according to claim 2, characterized in that: The suspension device (1) comprises a lifting ring (11), a threaded rod (12), a first washer (13), a second washer (14) and a first nut (15); the lifting ring (11) and the threaded rod (12) are integrally formed, and the threaded rod (12) passes through the first washer (13), the long holes (213) of the two half support arms (21) and the second washer (14) and is screwed and fixed with the first nut (15).

4. The front axle hoisting assembly according to claim 3, characterized in that: The suspension device (1) also includes a second nut (16), which is threadedly connected to the upper part of the threaded rod (12), and the lower part of the threaded rod (12) threadedly connected to the second nut (16) passes through the first washer (13), the long holes (213) of the two half support arms (21), and the second washer (14) and the first nut (15) to be screwed and fixed.

5. The front axle hoisting assembly according to claim 4, characterized in that: A horizontal limiting bolt (17) is screwed onto the side wall of the first nut (15), and the front end of the horizontal limiting bolt (17) can be in limiting contact with the side wall of the threaded rod.

6. The front axle hoisting assembly according to claim 5, characterized in that: A pair of guide rods (18) are protrudingly provided on the corresponding end surfaces of the first washer (13) or the second washer (14); sleeve blind holes (19) are provided at positions of the second washer (14) or the first washer (13) corresponding to the pair of guide rods (18); the lower ends of the pair of guide rods (18) are correspondingly inserted into the pair of sleeve blind holes (19); the middle parts of the pair of guide rods (18) are accommodated in the long holes (213) of the two half support arms (21); and the pair of guide rods (18) can slide left and right along the long holes (213) of the two half support arms (21).

7. The front axle hoisting assembly according to claim 6, characterized in that: A third limiting rod (5) is inserted and fixed between the lower parts of the vertical arms (212) of the two half-body supporting arms (21).

8. A front axle hoisting device, characterized in that: It comprises a pair of front axle lifting assemblies as described in any one of claims 1 to 7, and also comprises a front axle (6), wherein the front and rear ends of the I-beam (61) in the middle of the front axle (6) are respectively detachably and fixedly connected with a front axle lifting assembly; the front end of the first limit rod (3) and the front end of the second limit rod (4) of each front axle lifting assembly are respectively limited and contacted with one side of the vertical wall (611) in the middle of the I-beam (61), and the middle part of the third limit rod (5) of each front axle lifting assembly is limited and contacted with the lower end surface of the I-beam (61) at the corresponding position.

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