A balanced spreader

Abstract

The utility model discloses a kind of balance spreaders, including column assembly, the spreader assembly connected with column assembly, the extension assembly connected with spreader assembly, the clamp assembly connected with extension assembly, clamp assembly includes clamp seat, the first clamping plate and second clamping plate of the sliding connection of clamp seat, the lower side of first clamping plate is fixedly provided with first bearing plate, the lower side of second clamping plate is fixedly provided with second bearing plate, first bearing plate and second bearing plate are cooperatively provided with bearing platform, first clamping plate, second clamping plate and clamp seat between are provided with first drive component for driving first clamping plate, second clamping plate synchronous close or away from each other. The above-mentioned balanced spreader structure is reasonable, can carry hoisting object, avoid hoisting object to slide.

Description

Technical Field

[0001] This utility model relates to the field of lifting equipment technology, and in particular to a balancing lifting equipment. Background Technology

[0002] Balance cranes are mainly used for hoisting workpieces in workshops or moving objects in local spaces. They are characterized by flexibility, light weight, and low cost.

[0003] As described in CN222612795U, the existing balancing crane assembly includes a balancing beam, a lifting base, and lifting clamps. The balancing beam is located at the lower part of two sets of connecting wing plates and is fixedly connected to the connecting wing plates by bolts. The balancing beam has several sets of parallel and spaced mounting through holes. Bolts connected to the connecting wing plates pass through the mounting through holes to achieve the installation connection between the connecting wing plates and the balancing beam. There are two sets of lifting bases, which are arranged parallel and spaced on the outer side of the balancing beam and fixedly connected to the balancing beam by bolts. There are also two sets of lifting clamps, which are respectively located on one side of the lower part of the two sets of lifting bases and fixedly connected to the corresponding lifting bases by bolts. The two sets of lifting clamps are arranged opposite to each other.

[0004] The aforementioned lifting clamps utilize a linkage mechanism, where two sets of lifting clamps move closer together under the weight of the object being lifted to clamp and fix it in place. However, when the surface of the object being lifted is smooth, the friction between the object and the lifting clamps is small, making it easy for the object to slip.

[0005] Therefore, it is necessary to improve the existing balancing devices. Utility Model Content

[0006] The purpose of this utility model is to overcome the defects in the existing technology and provide a balancing lifting device that can support the lifted object and prevent the lifted object from slipping.

[0007] To achieve the above technical effects, the technical solution of this utility model is as follows: a balancing lifting device, including a column assembly, a boom assembly connected to the column assembly, an extension assembly connected to the boom assembly, and a clamp assembly connected to the extension assembly. The clamp assembly includes a clamp seat, a first clamping plate and a second clamping plate slidably connected to the clamp seat. A first bearing plate is fixedly disposed below the first clamping plate, and a second bearing plate is fixedly disposed below the second clamping plate. A bearing platform is provided in cooperation between the first bearing plate and the second bearing plate. A first driving component for driving the first clamping plate and the second clamping plate to move synchronously closer or further away is provided between the first clamping plate, the second clamping plate and the clamp seat.

[0008] According to one embodiment of the present invention, the first support plate is provided with a receiving groove, and the second support plate is slidably disposed in the receiving groove.

[0009] According to one embodiment of the present invention, the clamp seat is fixedly provided with an upper guide rail and a lower guide rail, and the first clamping plate and the second clamping plate are slidably connected to the upper guide rail and the lower guide rail.

[0010] According to one embodiment of the present invention, the first driving assembly includes a gear rotatably connected to the clamp seat and a first cylinder fixedly connected to the clamp seat. The first clamping plate is provided with a first rack meshing with the gear, and the second clamping plate is provided with a second rack meshing with the gear. The first rack and the second rack are respectively disposed on the upper and lower sides of the gear. The piston rod of the first cylinder is fixedly connected to the first clamping plate or the second clamping plate.

[0011] According to one embodiment of the present invention, the first cylinder is fixedly connected to the rear wall of the clamp seat, the clamp seat is provided with a clearance groove, and the first clamping plate is fixedly connected to the piston rod of the first cylinder through a connecting plate, the connecting plate passing through the clearance groove.

[0012] According to one embodiment of the present invention, the column assembly includes a fixedly disposed column body and a rotating column rotatably connected to the column body. The rotating column is disposed above the column body, and the rotation axis of the rotating column is vertically oriented.

[0013] According to one embodiment of the present invention, the boom assembly includes a first connecting seat, a first boom, a second connecting seat, and a second boom arranged in a parallelogram and rotatably connected in sequence. The first connecting seat is fixedly connected to the rotating column and is vertically arranged. A second cylinder is rotatably arranged between the rotating column and the first boom.

[0014] According to one embodiment of the present invention, the extension assembly includes an extension arm and a lifting arm. The extension arm is horizontally arranged and rotatably connected to the second connecting seat. The rotation axis of the extension arm is vertically arranged. The lifting arm is rotatably connected to the extension arm. The lifting arm is vertically arranged and its rotation axis is vertically arranged. The clamp seat is fixedly connected to the lifting arm.

[0015] The advantages and beneficial effects of this utility model are as follows: The balance lifting device of this utility model is reasonably designed. By fixing a first bearing plate and a second bearing plate below the first clamping plate and the second clamping plate, the first bearing plate and the second bearing plate cooperate to support the lifting object, and at the same time, the first clamping plate and the second clamping plate cooperate to clamp the lifting object, thus ensuring the stability of the lifting. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of an embodiment of the balancing lifting device of this utility model; Figure 2 This is a structural schematic diagram of the boom assembly; Figure 3 This is a structural schematic diagram of the fixture assembly; Figure 4 yes Figure 3 An explosion diagram; Figure 5 This is a structural schematic diagram of the fixture assembly (from another perspective); In the diagram: 1. Column assembly; 11. Column body; 12. Rotating column; 2. Boom assembly; 21. First connecting seat; 22. First boom; 23. Second connecting seat; 24. Second boom; 25. Second cylinder; 3. Extension assembly; 31. Extension arm; 32. Lifting arm; 4. Clamp assembly; 41. Clamp seat; 411. Upper guide rail; 412. Lower guide rail; 413. Gear; 414. Clearance groove; 5. First clamping plate; 51. First bearing plate; 511. Receiving groove; 52. First rack; 6. Second clamping plate; 61. Second bearing plate; 7. First cylinder; 71. Connecting plate. Detailed Implementation

[0017] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model. Example

[0018] like Figure 1-5 As shown, the balancing hoist of the embodiment includes a column assembly 1, a boom assembly 2 connected to the column assembly 1, an extension assembly 3 connected to the boom assembly 2, and a clamp assembly 4 connected to the extension assembly 3. The clamp assembly 4 includes a clamp base 41, a first clamping plate 5 and a second clamping plate 6 slidably connected to the clamp base 41. A first bearing plate 51 is fixedly disposed below the first clamping plate 5, and a second bearing plate 61 is fixedly disposed below the second clamping plate 6. A bearing platform is provided in cooperation between the first bearing plate 51 and the second bearing plate 61. A first driving component is provided between the first clamping plate 5, the second clamping plate 6 and the clamp base 41 for driving the first clamping plate 5 and the second clamping plate 6 to move closer or further away synchronously.

[0019] This design provides double fixation and prevents the load from slipping: the clamping plates slide to laterally clamp the load, while the supporting plates form a support platform that lifts the load from below. Compared to existing technologies that rely solely on clamping plates, this double fixation method, combining lateral clamping and bottom support, limits the displacement of the load and ensures the stability of the hoisting operation.

[0020] According to one embodiment of the present invention, the first support plate 51 is provided with a receiving groove 511, and the second support plate 61 is slidably disposed in the receiving groove 511.

[0021] This design ensures the continuity and integrity of the support platform, preventing any gaps in the support of the load: the receiving groove of the first support plate provides sliding adaptation space for the second support plate. Regardless of whether the first and second support plates move closer or further apart simultaneously due to differences in the size of the load, the second support plate can always slide within the receiving groove, maintaining a seamless fit between the two support plates and preventing any breakage, misalignment, or gaps in the support platform. This ensures that the bottom of the load is continuously and completely supported by the support platform.

[0022] Enhance the stability of the sliding of the bearing plate and avoid structural misalignment: The receiving groove guides and limits the sliding direction of the second bearing plate, which can prevent the second bearing plate from shifting laterally or misaligning vertically when sliding with the clamping plate, and ensure that the two bearing plates always cooperate smoothly in the preset direction.

[0023] According to one embodiment of the present invention, the clamp base 41 is fixedly provided with an upper guide rail 411 and a lower guide rail 412, and the first clamping plate 5 and the second clamping plate 6 are slidably connected to the upper guide rail 411 and the lower guide rail 412.

[0024] This design improves sliding stability and reduces clamp sway: the upper and lower double guide rails provide stable support to the clamp from the upper and lower fulcrums, which can distribute the pressure of the load on the clamp and reduce the sway or vibration of the clamp during the sliding process.

[0025] According to one embodiment of the present invention, the first drive assembly includes a gear 413 rotatably connected to the clamp seat 41, a first cylinder 7 fixedly connected to the clamp seat 41, a first clamping plate 5 having a first rack 52 meshing with the gear 413, and a second clamping plate 6 having a second rack meshing with the gear 413. The first rack 52 and the second rack are respectively located on the upper and lower sides of the gear 413. The piston rod of the first cylinder 7 is fixedly connected to the first clamping plate 5 or the second clamping plate 6.

[0026] This design allows the clamping plates to move synchronously closer or further apart: when the first cylinder drives one of the clamping plates to slide, the first rack drives the gear to rotate, and the gear rotation drives the second rack in the opposite direction, thus causing the second clamping plate to move synchronously in the opposite direction. This ensures that the two clamping plates always maintain a completely synchronized movement rhythm, avoiding situations where one side is clamped too tightly or too loosely due to asynchronous movement of the clamping plates.

[0027] According to one embodiment of the present invention, the first cylinder 7 is fixedly connected to the rear wall of the clamp seat 41, the clamp seat 41 is provided with a relief groove 414, and the first clamping plate 5 is fixedly connected to the piston rod of the first cylinder 7 through a connecting plate 71, the connecting plate 71 passing through the relief groove 414.

[0028] This design achieves a compact spatial layout, avoids interference between the cylinder and core components, and ensures the normal operation of the fixture assembly: the first cylinder is fixed to the rear wall of the fixture base, completely offset from the upper guide rail, lower guide rail, first clamping plate, second clamping plate, and support plate on the front of the fixture base. This prevents the clamping plate from obstructing its sliding path along the guide rails and avoids contact or collision with the support platform or the load below. It also prevents mechanical interference between the cylinder and the clamping plate, load, and support plate during operation, reducing the risk of component wear or jamming.

[0029] According to one embodiment of the present invention, the column assembly 1 includes a fixed column body 11 and a rotating column 12 rotatably connected to the column body 11. The rotating column 12 is disposed above the column body 11, and the rotation axis of the rotating column 12 is vertically arranged.

[0030] This design enables flexible horizontal rotation and expands the lifting coverage area: the rotation axis of the rotating column is set vertically, and the rotating column can drive the upper connected boom assembly, extension assembly, and clamp assembly to rotate 360° horizontally around the column body.

[0031] According to one embodiment of the present invention, the boom assembly 2 includes a first connecting seat 21, a first boom 22, a second connecting seat 23 and a second boom 24 arranged in a parallelogram and rotatably connected in sequence. The first connecting seat 21 is fixedly connected to the rotating column 12 and is arranged vertically. A second cylinder 25 is rotatably arranged between the rotating column 12 and the first boom 22.

[0032] This design maintains the clamping assembly in a horizontal position, preventing the lifted object from tilting and slipping. Based on the mechanical properties of a parallelogram, since the first connecting seat is vertical, the second connecting seat also remains vertical. When the boom assembly rotates around its connection points, the extension components and clamping assemblies connected to the second connecting seat maintain a constant horizontal orientation. This design prevents the clamp from tilting due to boom swaying during lifting, ensuring the lifted object remains in a stable state of horizontal support and lateral clamping.

[0033] The parallelogram structure distributes the force and improves the durability of the boom assembly: The workpieces hoisted in the workshop often have a certain weight. The multi-node rotating connection structure of the parallelogram can evenly distribute the weight of the hoisted object to the first boom, the second boom and each connecting seat, avoiding excessive wear or deformation of a single component due to concentrated force.

[0034] According to one embodiment of the present invention, the extension assembly 3 includes an extension arm 31 and a lifting arm 32. The extension arm 31 is horizontally arranged and rotatably connected to the second connecting seat 23. The rotation axis of the extension arm 31 is vertically arranged. The lifting arm 32 is rotatably connected to the extension arm 31. The lifting arm 32 is vertically arranged and its rotation axis is vertically arranged. The clamp seat 41 is fixedly connected to the lifting arm 32.

[0035] This design makes it more adaptable to complex workspaces: Horizontal coverage expansion: The extension arm can rotate flexibly around the second connecting seat on the horizontal plane, which can drive the subsequent lifting arm and clamping assembly to extend to the side of the lifting arm assembly, breaking through the coverage limitations of the lifting arm assembly itself.

[0036] Precise adjustment of clamp orientation: The lifting arm can rotate independently on the horizontal plane with the clamp seat. Without adjusting the overall position of the extension arm or lifting arm assembly, the orientation of the clamp can be finely adjusted, making it easy to align with workpieces at different placement angles.

[0037] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A balancing lifting device, characterized in that, The device includes a column assembly (1), a boom assembly (2) connected to the column assembly (1), an extension assembly (3) connected to the boom assembly (2), and a clamp assembly (4) connected to the extension assembly (3). The clamp assembly (4) includes a clamp seat (41), a first clamping plate (5) and a second clamping plate (6) slidably connected to the clamp seat (41). A first bearing plate (51) is fixedly disposed below the first clamping plate (5), and a second bearing plate (61) is fixedly disposed below the second clamping plate (6). A bearing platform is provided in cooperation between the first bearing plate (51) and the second bearing plate (61). A first driving component is provided between the first clamping plate (5), the second clamping plate (6) and the clamp seat (41) for driving the first clamping plate (5) and the second clamping plate (6) to move closer or further away synchronously.

2. The balancing lifting device according to claim 1, characterized in that, The first support plate (51) is provided with a receiving groove (511), and the second support plate (61) is slidably disposed in the receiving groove (511).

3. The balancing lifting device according to claim 1, characterized in that, The clamp seat (41) is fixedly provided with an upper guide rail (411) and a lower guide rail (412), and the first clamping plate (5) and the second clamping plate (6) are slidably connected to the upper guide rail (411) and the lower guide rail (412).

4. The balancing lifting device according to claim 3, characterized in that, The first drive assembly includes a gear (413) rotatably connected to the clamp seat (41) and a first cylinder (7) fixedly connected to the clamp seat (41). The first clamping plate (5) is provided with a first rack (52) meshing with the gear (413), and the second clamping plate (6) is provided with a second rack meshing with the gear (413). The first rack (52) and the second rack are respectively located on the upper and lower sides of the gear (413). The piston rod of the first cylinder (7) is fixedly connected to the first clamping plate (5) or the second clamping plate (6).

5. The balancing lifting device according to claim 4, characterized in that, The first cylinder (7) is fixedly connected to the rear wall of the clamp seat (41), the clamp seat (41) is provided with a relief groove (414), the first clamping plate (5) is fixedly connected to the piston rod of the first cylinder (7) through a connecting plate (71), the connecting plate (71) passes through the relief groove (414).

6. The balancing lifting device according to claim 1, characterized in that, The column assembly (1) includes a fixed column body (11) and a rotating column (12) rotatably connected to the column body (11). The rotating column (12) is located above the column body (11), and the rotation axis of the rotating column (12) is vertically oriented.

7. The balancing lifting device according to claim 6, characterized in that, The boom assembly (2) includes a first connecting seat (21), a first boom (22), a second connecting seat (23), and a second boom (24) that are rotatably connected and arranged in a parallelogram. The first connecting seat (21) is fixedly connected to the rotating column (12) and is arranged vertically. A second cylinder (25) is rotatably arranged between the rotating column (12) and the first boom (22).

8. The balancing lifting device according to claim 7, characterized in that, The extension assembly (3) includes an extension arm (31) and a lifting arm (32). The extension arm (31) is horizontally arranged and rotatably connected to the second connecting seat (23). The rotation axis of the extension arm (31) is vertically arranged. The lifting arm (32) is rotatably connected to the extension arm (31). The lifting arm (32) is vertically arranged and its rotation axis is vertically arranged. The clamp seat (41) is fixedly connected to the lifting arm (32).

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