Large-tonnage tire dismounting clamp

Abstract

The utility model provides a kind of large-tonnage tire dismounting and assembling clamp, including clamping arm frame, the two free ends of the clamping arm frame are equipped with first clamping arm assembly and second clamping arm assembly, the first clamping arm assembly and second clamping arm assembly are mirror image arrangement;The first clamping arm assembly and second clamping arm assembly are all included: with the rotatable connection of the clamping arm frame first connecting arm, with the rotatable connection of the first connecting arm second connecting arm, and for driving the rotation of the first telescopic drive part of the second connecting arm, the inside of the second connecting arm is equipped with hollow rotating platform. By first clamping arm assembly and second clamping arm assembly cooperation, different diameter engineering tire can be quickly embraced and clamped, and by the rotation of hollow rotating platform, tire can be driven along ZY plane rotation, without artificial overturning heavy large-tonnage tire, can easily, comprehensively check tread damage condition, both reduce the tediousness of manual operation, also can reduce the omission risk of tread damage.

Description

Technical Field

[0001] This utility model relates to the field of tire clamping technology, specifically to a large-tonnage tire assembly and disassembly clamp. Background Technology

[0002] As core equipment in infrastructure construction, engineering vehicles' tires are prone to wear and damage due to long-term operation under complex and high-load conditions, requiring frequent disassembly and replacement. Currently, the disassembly and replacement of heavy-duty engineering tires mainly relies on the following two methods: Firstly, while fixed tire changers can achieve mechanized operations, they are bulky, costly, and limited to use in repair shops, making them unsuitable for the mobile operations required at field construction sites. When construction vehicles experience tire blowouts or need tire replacements at remote sites, the traditional methods of manual handling and prying with crowbars are often the only options. This is not only labor-intensive and inefficient, but also highly likely to damage tires and rims, and even lead to personal injury accidents.

[0003] Secondly, while some vehicle-mounted auxiliary tire assembly and disassembly devices possess mobile operation capabilities, they are mostly limited to simple lifting functions and lack reliable clamping and rotation positioning mechanisms for tires, making it difficult to achieve precise alignment and assembly of tires and rims. Particularly during the assembly and disassembly of heavy-duty tires, due to their large weight (ranging from hundreds of kilograms to several tons), deep tread patterns, and uneven surfaces, existing clamping devices generally suffer from insufficient clamping force, slippage, and poor centering, leading to difficulties in aligning bolt holes and low installation efficiency. Furthermore, the existing devices have low integration with the main unit of the engineering vehicle, preventing the use of the main unit's hydraulic system as a power source; the need for a separate power unit further increases equipment costs and maintenance complexity.

[0004] Therefore, there is an urgent need for a rear-mounted tire mounting and dismounting clamp that can be quickly attached to engineering vehicles (such as forklifts), which can make full use of the host hydraulic power to achieve efficient clamping and rotation, and can also reliably grip and accurately position tires of different specifications, so as to meet the actual needs of rapid on-site maintenance. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to propose a large-tonnage tire assembly and disassembly clamp to solve the problems mentioned in the background section above.

[0006] This utility model is achieved through the following technical solution: A heavy-duty tire mounting and dismounting clamp includes a clamping arm frame. The two free ends of the clamping arm frame are provided with a first clamping arm assembly and a second clamping arm assembly, which are arranged in a mirror image. The first clamping arm assembly and the second clamping arm assembly each include: a first connecting arm rotatably connected to the clamping arm frame, a second connecting arm rotatably connected to the first connecting arm, and a first telescopic drive member for driving the second connecting arm to rotate. A hollow rotating platform is provided on the inner side of the second connecting arm.

[0007] Furthermore, the hollow rotary table includes a base and a turntable rotatably connected to the base, the turntable being provided with a retaining ring with concave and convex shapes.

[0008] Furthermore, the outer circumferential surface of the turntable is provided with a worm gear portion, and it also includes a hydraulic motor. The output end of the hydraulic motor is provided with a worm, and the worm meshes with the worm gear portion.

[0009] Furthermore, the first connecting arm and the clamping arm frame are rotatably connected via a first pivot, and the first connecting arm and the second connecting arm are rotatably connected via a second pivot.

[0010] Furthermore, it also includes a rear hanger, the front end of which is provided with a transition piece, the transition piece being movably connected to the rear hanger along the X-axis direction, the front end of which is provided with the clamping arm frame, the clamping arm frame being rotatably connected to the transition piece along the XZ plane.

[0011] Furthermore, the rear end of the hanger is provided with several spaced reinforcing plates, and the reinforcing plates are provided with mounting holes that penetrate along the X-axis direction.

[0012] Furthermore, it also includes a second telescopic drive component. The transition component and the clamping arm frame are rotatably connected via a third rotating shaft. The second telescopic drive component is used to drive the clamping arm frame to rotate around the third rotating shaft, which is arranged along the Y-axis direction.

[0013] Furthermore, the rear mount and the transition piece are connected by a first horizontal axis and a third telescopic drive piece. The first horizontal axis is arranged along the X-axis direction, and the transition piece is driven to move along the X-axis direction by the third telescopic drive piece.

[0014] The beneficial effects of this utility model are as follows: A heavy-duty tire mounting and dismounting clamp includes a clamping arm frame. The two free ends of the clamping arm frame are provided with a first clamping arm assembly and a second clamping arm assembly, which are arranged in a mirror image. Each of the first and second clamping arm assemblies includes: a first connecting arm rotatably connected to the clamping arm frame; a second connecting arm rotatably connected to the first connecting arm; and a first telescopic drive member for driving the rotation of the second connecting arm. A hollow rotating platform is provided on the inner side of the second connecting arm. Through the cooperation of the first and second clamping arm assemblies, engineering tires of different diameters can be quickly clamped. Furthermore, the rotation of the hollow rotating platform drives the tire to rotate along the ZY plane. This eliminates the need for manual flipping of heavy, heavy-duty tires, allowing for easy and comprehensive inspection of tread damage. This reduces the tediousness of manual operation and minimizes the risk of overlooking tread damage. Attached Figure Description

[0015] Figure 1 This is a perspective view of a large-tonnage tire assembly / disassembly clamp according to the present invention.

[0016] Figure 2 for Figure 1 Sectional view at point AA along the middle.

[0017] Figure 3 This is a perspective view of a large-tonnage tire disassembly and assembly clamp according to this utility model.

[0018] Figure 4 This is a top view of a large-tonnage tire assembly / disassembly clamp according to the present invention.

[0019] Figure 5 This is a perspective view of a large-tonnage tire disassembly and assembly clamp of this utility model in an open state.

[0020] Figure 6 This is a perspective view of a large-tonnage tire disassembly and assembly clamp of this utility model in a retracted state.

[0021] Figure 7 This is a perspective view of the rear hanger of this utility model.

[0022] The above figures include the following reference numerals: 1. Clamping arm frame; 2A. First clamping arm assembly; 21. First connecting arm; 22. Second connecting arm; 23. First telescopic drive component; 24. Hollow rotary table; 241. Base; 242. Turntable; 2421. Snap ring; 243. Worm gear; 25. First rotating shaft; 26. Second rotating shaft; 2B. Second clamping arm assembly; 3. Rear hanger; 31. Reinforcing plate; 311. Mounting hole; 4. Transition component; 51. Second telescopic drive component; 52. Third rotating shaft; 53. First horizontal shaft; 54. Third telescopic drive component. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. It should be noted that the description of these embodiments is intended to aid in understanding this utility model, but does not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0024] Reference Figures 1 to 7 As shown, a large-tonnage tire mounting and dismounting clamp includes a clamping arm frame 1. The two free ends of the clamping arm frame 1 are provided with a first clamping arm assembly 2A and a second clamping arm assembly 2B, which are arranged in a mirror image. The first clamping arm assembly 2A and the second clamping arm assembly 2B each include: a first connecting arm 21 rotatably connected to the clamping arm frame 1, a second connecting arm 22 rotatably connected to the first connecting arm 21, and a first telescopic drive member 23 for driving the second connecting arm 22 to rotate. A hollow rotating platform 24 is provided on the inner side of the second connecting arm 22.

[0025] With the cooperation of the first clamping arm assembly 2A and the second clamping arm assembly 2B, engineering tires of different diameters can be quickly clamped. Furthermore, the rotation of the hollow rotary table 24 can drive the tire to rotate along the ZY plane. Without the need for manual flipping of heavy, large-tonnage tires, the condition of tire tread damage can be easily and comprehensively inspected, which reduces the tediousness of manual operation and also reduces the risk of missing tire tread damage.

[0026] The hollow rotary table 24 includes a base 241 and a turntable 242 rotatably connected to the base 241. The turntable 242 is provided with a retaining ring 2421 with concave and convex shapes. The retaining ring 2421 can be embedded into the side end of the tire to form a mechanical interlocking structure, which can firmly grip the heavy tire and effectively prevent the tire from slipping or shifting during clamping and rotation due to its excessive weight.

[0027] The outer circumferential surface of the turntable 242 is provided with a worm gear section (not shown in the figure), and it also includes a hydraulic motor (not shown in the figure). The output end of the hydraulic motor is provided with a worm 243, which meshes with the worm gear section. The turntable 242 can be rotated in a 360° direction by being driven by the hydraulic motor, and the mechanical transmission combination of the worm 243 and the worm gear section can be adapted to narrow installation spaces.

[0028] Reference Figure 5 and Figure 6As shown, the first connecting arm 21 and the clamping arm frame 1 are rotatably connected by the first rotating shaft 25, and the first connecting arm 21 and the second connecting arm 22 are rotatably connected by the second rotating shaft 26. When it is necessary to clamp the tire, the first telescopic drive member 23 is controlled to telescopically extend and retract: its output end will drive the first rotating shaft 25 and the second rotating shaft 26 to rotate, thereby adjusting the opening and closing angles of the first clamping arm assembly 2A and the second clamping arm assembly 2B; after the second connecting arm 22 is in contact with the side of the tire, the current state of the first telescopic drive member 23 is maintained, thus completing the stable clamping of the heavy-duty tire; when the tire is released, the first telescopic drive member 23 is controlled to extend and retract in the opposite direction, which will drive the first clamping arm assembly 2A and the second clamping arm assembly 2B to open and reset.

[0029] It also includes a rear hanger 3, the front end of which is provided with a transition piece 4, the transition piece 4 being movably connected to the rear hanger 3 along the X-axis direction, the front end of which is provided with the clamping arm frame 1, the clamping arm frame 1 being rotatably connected to the transition piece 4 along the XZ plane.

[0030] The rear mount 3 and the transition piece 4 are connected by a first horizontal axis 53 and a third telescopic drive piece 54. The first horizontal axis 53 is arranged along the X-axis direction, and the transition piece 4 is driven to move along the X-axis direction by the third telescopic drive piece 54.

[0031] It also includes a second telescopic drive member 51. The transition member 4 and the clamping arm frame 1 are rotatably connected by a third rotating shaft 52. The second telescopic drive member 51 is used to drive the clamping arm frame 1 to rotate around the third rotating shaft 52, which is arranged along the Y-axis.

[0032] After the rear mount 3 is fixedly connected to the engineering vehicle, the extension and retraction of the third telescopic drive 54 drives the transition piece 4 to move back and forth along the X-axis, thereby fine-tuning the horizontal position of the clamping arm frame 1; then, the extension and retraction of the second telescopic drive 51 drives the clamping arm frame 1 to rotate along the XZ plane to adapt to different working posture requirements.

[0033] The rear mount 3 has several spaced reinforcing plates 31 at its back end, each reinforcing plate 31 having a through mounting hole 311 along the X-axis. The rear mount 3 is installed through the reinforcing plates 31 at the back end of the clamping arm frame 1. By aligning the connecting end of the engineering vehicle with the through mounting hole 311 on the reinforcing plate 31, and using fasteners such as bolts and pins through the mounting hole 311, the rear mount 3 is securely locked to the engineering vehicle, completing the overall fixed assembly of the equipment. The assembly is simple and quick.

[0034] The first telescopic drive member 23 to the third telescopic drive member 54 include, but are not limited to, hydraulic telescopic cylinders used in the prior art.

[0035] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0036] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0037] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A large-tonnage tire assembly / disassembly clamp, characterized in that: The system includes a clamping arm frame (1), with a first clamping arm assembly (2A) and a second clamping arm assembly (2B) at both free ends, the first clamping arm assembly (2A) and the second clamping arm assembly (2B) being arranged in a mirror image. The first clamping arm assembly (2A) and the second clamping arm assembly (2B) each include: a first connecting arm (21) rotatably connected to the clamping arm frame (1), a second connecting arm (22) rotatably connected to the first connecting arm (21), and a first telescopic drive member (23) for driving the second connecting arm (22) to rotate. The inner side of the second connecting arm (22) is provided with a hollow rotary table (24).

2. The large-tonnage tire assembly / disassembly clamp according to claim 1, characterized in that: The hollow rotary table (24) includes a base (241) and a turntable (242) rotatably connected to the base (241). The turntable (242) is provided with a retaining ring (2421) with concave and convex shapes.

3. The large-tonnage tire assembly / disassembly clamp according to claim 2, characterized in that: The turntable (242) has a worm gear on its outer peripheral surface and also includes a hydraulic motor. The output end of the hydraulic motor is provided with a worm (243), which meshes with the worm gear.

4. The large-tonnage tire assembly / disassembly clamp according to claim 1, characterized in that: The first connecting arm (21) and the clamping arm frame (1) are rotatably connected by the first rotating shaft (25), and the first connecting arm (21) and the second connecting arm (22) are rotatably connected by the second rotating shaft (26).

5. A large-tonnage tire disassembly and assembly clamp according to any one of claims 1 to 4, characterized in that: It also includes a rear hanger (3), the front end of which is provided with a transition piece (4), the transition piece (4) is movably connected to the rear hanger (3) along the X-axis direction, the front end of the transition piece (4) is provided with the clamping arm frame (1), the clamping arm frame (1) is rotatably connected to the transition piece (4) along the XZ plane.

6. A large-tonnage tire assembly / disassembly clamp according to claim 5, characterized in that: The rear hanger (3) has several spaced reinforcing plates (31) at its back end, and the reinforcing plates (31) have mounting holes (311) that pass through along the X-axis.

7. A large-tonnage tire assembly / disassembly clamp according to claim 5, characterized in that: It also includes a second telescopic drive (51), the transition member (4) and the clamping arm frame (1) are rotatably connected by a third rotating shaft (52), the second telescopic drive (51) is used to drive the clamping arm frame (1) to rotate around the third rotating shaft (52), the third rotating shaft (52) is arranged along the Y-axis direction.

8. A large-tonnage tire assembly / disassembly clamp according to claim 5, characterized in that: The rear mount (3) and the transition piece (4) are connected by a first horizontal axis (53) and a third telescopic drive piece (54). The first horizontal axis (53) is arranged along the X-axis direction, and the transition piece (4) is driven to move along the X-axis direction by the third telescopic drive piece (54).

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