CN213294399U

CN213294399U - Hoisting equipment and leading wheel hoist and mount system

Info

Publication number: CN213294399U
Application number: CN202021880426.8U
Authority: CN
Inventors: 张�杰; 刘洪涛; 梁海瑞
Original assignee: Zoomlion Heavy Industry Science and Technology Co Ltd; Shaanxi Zoomlion West Earthmoving Machinery Co Ltd
Current assignee: Zoomlion Heavy Industry Science and Technology Co Ltd; Shaanxi Zoomlion West Earthmoving Machinery Co Ltd
Priority date: 2020-09-01
Filing date: 2020-09-01
Publication date: 2021-05-28
Anticipated expiration: 2030-09-01

Abstract

The utility model discloses a hoisting device and a guide wheel hoisting system, wherein the hoisting device comprises a supporting plate (110) and a hoisting hole plate (120); the pallet (110) is configured for providing support to the guide wheel assembly; the lifting hole plate (120) is located above the supporting plate (110) and forms a gap for placing the guide wheel assembly with the supporting plate (110), the lifting hole plate (120) is provided with a lifting hole for a rope to pass through, and the lifting hole and the center of gravity of the guide wheel assembly supported on the supporting plate (110) are located on the same plumb line. The utility model discloses a lifting device's simple structure, the security when hoist and mount leading wheel subassembly is good, and convenient loading and unloading.

Description

Hoisting equipment and leading wheel hoist and mount system

Technical Field

The utility model relates to an excavator technical field specifically relates to a lifting device and leading wheel hoist and mount system.

Background

In the assembly process of the excavator, the guide wheel assembly needs to be hoisted into the lower frame, and at present, a hoisting rope is generally adopted in the prior art to surround the guide wheel assembly, and then the hoisted guide wheel assembly is pushed into the lower frame through a travelling crane. However, the above method has the following problems: the operation of taking off the hoist and mount rope after the operation is accomplished is more difficult, and the hoist and mount rope is changed frequently, and cost loss is big to, hoist and mount in-process is difficult to control the balance of leading wheel subassembly, has certain safety risk.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the problem that prior art exists, providing a lifting device and leading wheel hoist and mount system, this lifting device's simple structure, the security when hoist and mount leading wheel subassembly is good, and convenient loading and unloading.

In order to achieve the purpose, the utility model provides a hoisting device which is used for hoisting a guide wheel component of an excavator, and comprises a supporting plate and a hoisting hole plate; the pallet is configured for providing support to the guide wheel assembly; the lifting hole plate is located above the supporting plate and forms a gap for placing the guide wheel assembly with the supporting plate, the lifting hole plate is provided with a lifting hole for allowing a rope to pass through, and the lifting hole and the center of gravity of the guide wheel assembly supported on the supporting plate are located on the same plumb line.

Optionally, the hoisting device is configured to allow the guide wheel assembly to move on the supporting plate along a first horizontal direction, the hoisting hole plate is provided with a plurality of hoisting holes along the first horizontal direction, and one of the plurality of hoisting holes and the center of gravity of the guide wheel assembly supported on the supporting plate are located on the same plumb line.

Optionally, the hoisting equipment comprises a supporting plate and two side rib plates, the supporting plate is located above the supporting plate, the two side rib plates are arranged between the supporting plate and the supporting plate, the supporting plate and the two side rib plates jointly define the gap, and the lifting hole plate is installed in the supporting plate.

Optionally, the hoisting device is configured to allow the guide wheel assembly to move on the supporting plate along a first horizontal direction, the side rib plate is of an arc-shaped structure, and an arc-shaped opening of the side rib plate faces the first horizontal direction.

Optionally, the hoisting device includes a limiting member disposed in the gap, and the limiting member is configured to limit the guide wheel assembly to move along the first horizontal direction.

Optionally, the supporting plate, the lifting hole plate, the supporting plate, the limiting member and the two side reinforcing plates are welded and connected.

Optionally, a distance from a fulcrum of the supporting plate for supporting the guide wheel assembly to a plumb line of a center of gravity of the guide wheel assembly is L1, a gravity of the guide wheel assembly is G, a force applied to the guide wheel assembly by the limiting member is Fy, a distance from the fulcrum to a contact point of the limiting member and the guide wheel assembly is L2, and the limiting member is configured to: g × L1 ═ Fy × L2.

Through the technical scheme, the support plate is adopted to support the guide wheel assembly, the lifting hole plate is connected with the lifting rope, the lifting rope is lifted up while the lifting equipment is lifted up, the guide wheel assembly of the support plate is lifted up, the lifting rope is not required to be wound on the guide wheel assembly, the lifting rope can be conveniently separated from the lifting equipment, the lifting equipment is separated from the guide wheel assembly after the operation is completed, and the operation efficiency is greatly improved. In addition, the hoisting holes for connecting the hoisting ropes and the gravity centers of the guide wheel assemblies arranged on the supporting plate are positioned on the same plumb line, so that the guide wheel assemblies can be kept balanced, the guide wheel assemblies are prevented from inclining and falling, and the safety of hoisting operation is improved.

The utility model discloses the second aspect provides a leading wheel hoist and mount system, leading wheel hoist and mount system includes leading wheel subassembly and foretell lifting device.

Optionally, the guide wheel assembly includes a guide wheel body and a spring structure connected to the guide wheel body, a gap is provided between the guide wheel body and the spring structure, and one end of the hoisting device penetrates through the gap so that the supporting plate and the lifting hole plate are respectively located at two ends of the gap.

Optionally, an end portion of the spring structure close to the guide wheel body is supported on the supporting plate, a distance from the end portion to a plumb line of the center of gravity of the guide wheel assembly is L1, and a gravity of the guide wheel assembly is G; the limiting piece abuts against the guide wheel body and applies force Fy to the guide wheel body, the distance from the end to the contact point of the limiting piece abutting against the guide wheel body is L2, and the limiting piece is configured to: g × L1 ═ Fy × L2.

Compared with the prior art, the guide wheel hoisting system has the same advantages as the hoisting system, and the detailed description is omitted.

Other features and advantages of the present invention will be described in detail in the detailed description which follows.

Drawings

Figure 1 is a schematic view of an embodiment of the hoisting device of the present invention;

figure 2 is a schematic view of an embodiment of the hoisting device of the present invention;

fig. 3 is a schematic view of a guide wheel assembly of the guide wheel hoist system of the present invention;

fig. 4 is a schematic view of the guide wheel hoisting system of the present invention;

fig. 5 is a schematic view of the guide wheel hoist system of the present invention, wherein the moment is shown;

fig. 6 is the schematic view of the guide wheel hoisting system of the present invention assembled on the lower frame guide seat of the excavator.

Description of the reference numerals

110-supporting plate, 120-lifting hole plate, 130-supporting plate, 140-side rib plate, 150-limiting piece, 210-guide wheel body, 220-spring structure, 310-lower frame guide seat

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

As shown in fig. 1 to 6, the hoisting device of the present invention includes a supporting plate 110 and a lifting hole plate 120; the plate 110 is configured to provide support to the guide wheel assembly; the lifting hole plate 120 is located above the supporting plate 110 and forms a gap for placing the guide wheel assembly with the supporting plate 110, the lifting hole plate 120 is provided with a lifting hole for passing a rope, and the lifting hole and the center of gravity of the guide wheel assembly supported on the supporting plate 110 are located on the same plumb line.

The utility model discloses in, because layer board 110 provides the support to the leading wheel subassembly to be connected with the hoist and mount rope through hole board 120, the hoist and mount rope will be placed in layer board 110's leading wheel subassembly and together hoist when hoisting accessory, consequently, need not to twine the hoist and mount rope in the leading wheel subassembly, can conveniently realize breaking away from, the breaking away from of hoisting accessory and leading wheel subassembly of hoist and mount rope after the operation is accomplished, improved the operating efficiency greatly. In addition, the hoisting holes for connecting the hoisting ropes and the gravity centers of the guide wheel assemblies placed on the supporting plate 110 are positioned on the same plumb line, so that the guide wheel assemblies can maintain balance, prevent inclination and falling, and improve the safety of hoisting operation.

In some cases, the center of gravity of the guide wheel assembly may change in the horizontal direction, for example, when the length of the guide wheel assembly is changed, in which case, the lifting hole of the lifting hole plate 120 is likely to be no longer in the same plumb line with the center of gravity of the guide wheel assembly, which may result in the guide wheel assembly not being balanced. In order to solve the problem, the utility model discloses an in an embodiment, lifting device configuration is configured to can allow the leading wheel subassembly to remove along first horizontal direction on layer board 110, that is to say, lifting device allows the focus of leading wheel subassembly to remove along first horizontal direction, and simultaneously, be equipped with a plurality of hoistways along first horizontal direction on the lewis hole board 120, set up like this, always have a hoist way can be located same plumb line basically with the focus of leading wheel subassembly in a plurality of hoistways to guarantee that the leading wheel subassembly maintains balance.

It should be understood that the lifting device may be designed in various forms, for example, the lifting device may be designed in the form of an i-beam. The utility model discloses an in an embodiment, lifting device includes backup pad 130 and two side gusset 140, and backup pad 130 is located layer board 110 top, and two side gusset 140 settings are between backup pad 130 and layer board 110, and backup pad 130, layer board 110 and two side gusset 140 inject the clearance jointly, and lewis hole board 120 installs in backup pad 130. That is, the supporting plate 130, the supporting plate 110 and the two side rib plates 140 together form a quadrilateral structure, the structure is more stable, and the hoisting equipment is not easy to displace relatively greatly relative to the guide wheel assembly due to the side rib plates 140 arranged on the two sides.

It should be understood that the guide wheel assembly can be designed in various forms, for example, in an embodiment of the present invention, as shown in fig. 3, the guide wheel assembly can include a guide wheel body 210 and a spring structure 220, a gap is formed between the guide wheel body 210 and the spring structure 220, the width of the gap is smaller, when the lifting device is installed on the guide wheel assembly, the supporting plate 110 needs to be inserted into the gap first, the supporting plate 110 and the two side rib plates 140 are arranged substantially perpendicular, in order to smoothly insert the supporting plate 110 into the gap, the side rib plates 140 are designed to be arc-shaped, and the arc-shaped openings of the side rib plates 140 face the first horizontal direction. When the hoisting equipment is installed on the guide wheel assembly, the side rib plates 140 are in a basically horizontal state, and the arc-shaped openings of the side rib plates 140 can accommodate part of the spring structures 220, so that when the supporting plate 110 extends into the gap, the side rib plates 140 cannot abut against the spring structures 220, and the supporting plate 110 can smoothly extend into the gap. After the pallet 110 is inserted into the gap, the side rib 140 is rotated to be substantially vertical, so that the side rib 140 can smoothly move up and down in the gap.

It should be understood that the guide wheel assembly may also be carried on the lifting device in other ways, for example, when the width of the spring structure 220 of the guide wheel assembly is smaller than the distance between the two side webs 140 of the lifting device, and the height of the spring structure 220 is less than the distance between the support plate 130 and the support plate 110 of the lifting device, the spring structure 220 can pass through the space formed by the support plate 110, the support plate 130 and the two side rib plates 140 and is supported by the support plate 110, in this embodiment, the balance can be fine-tuned by movement of the guide wheel assembly in the first horizontal direction, after equilibrium is achieved, it is undesirable for the guide wheel assembly to continue moving in the first horizontal direction to break the equilibrium, and, therefore, in an embodiment of the present invention, the hoisting device includes a limiting member 150 disposed in the gap, and the limiting member 150 is configured to limit the guide wheel assembly to move along the first horizontal direction. That is, after the position of the limiting member 150 is such that the spring structure 220 of the guide wheel assembly passes through the space defined by the supporting plate 110, the supporting plate 130 and the two side rib plates 140 and moves for a certain distance, other components (e.g., the guide wheel body 210) of the guide wheel assembly are just blocked by the limiting member 150 and cannot move continuously, in this state, the guide wheel assembly just reaches a balanced state, and there is almost no relation of mutual acting force between the components of the guide wheel assembly blocked by the limiting member 150 and the limiting member 150, and the guide wheel assembly basically relies on its own gravity and upward pulling force to achieve balance.

In order to facilitate the assembly and manufacture of the hoisting device, optionally, the supporting plate 110, the lifting hole plate 120, the supporting plate 130, the limiting member 150 and the two side rib plates 140 are connected by welding.

In some cases, the guide wheel assembly may not be always balanced under the influence of an external force or the inclination of the supporting plate 110 when being placed on the supporting plate 110, which is not favorable for improving the efficiency of the lifting operation. For this reason, in an embodiment of the present invention, the limiting member 150 is disposed on the side rib plate 140 and the distance relationship between the limiting member 150 and the supporting plate 110 satisfies the following formula: gxl 1 ═ Fy × L2, where: l1 is the distance from the pivot point of the support plate 110 for supporting the guide wheel assembly to the plumb line of the center of gravity of the guide wheel assembly, G is the weight of the guide wheel assembly, Fy is the force applied by the limiting member 150 to the guide wheel assembly, and L2 is the distance from the pivot point to the contact point of the limiting member 150 and the guide wheel assembly. That is, without the influence of the limiting member 150, the guide wheel assembly is unbalanced about its own pivot point on the supporting plate, which causes the guide wheel assembly to tilt about the pivot point, and when the guide wheel assembly tilts (or has a tendency to tilt), a part of the guide wheel assembly abuts against the limiting member 150 and is blocked by the limiting member 150 to maintain a current tilting state (the tilting state refers to that the guide wheel assembly has tilted, and the guide wheel assembly is unbalanced in force and tends to tilt), and in the tilting state, the part of the guide wheel assembly applies a thrust force to the limiting member 150, which is a reaction force of the force applied by the limiting member 150 to the guide wheel assembly Fy. In this case, according to the moment balance principle, if G × L1 is equal to Fy × L2, the guide wheel assembly can be stably maintained in the current tilting state, and at this time, the guide wheel assembly can be disengaged from the stopper 150 only by applying a reverse force greater than Fy to the guide wheel assembly from the outside, and thus, the guide wheel assembly in this state has good stability.

It should be understood that the guide wheel assembly can be designed in various forms, for example, in the present invention, the guide wheel hoisting system comprises the guide wheel assembly and the hoisting device, the guide wheel assembly comprises the guide wheel body 210 and the spring structure 220 connected to the guide wheel body 210, a gap is formed between the guide wheel body 210 and the spring structure 220, and one end of the hoisting device passes through the gap so that the supporting plate 110 and the hoisting hole plate 120 are respectively located at two ends of the gap.

As shown in fig. 5, in the above-described embodiment of the guide wheel assembly, the guide wheel assembly is in the above-described inclined state, in this inclined state, the end portion of the spring structure 220 close to the guide wheel body 210 is supported by the pallet 110, the distance from the end portion to the plumb line of the center of gravity of the guide wheel assembly is L1, the gravity of the guide wheel assembly is G, the stopper 150 abuts against the guide wheel body 210 and applies a force Fy to the guide wheel body 210, the distance from the end portion to the contact point where the stopper 150 abuts against the guide wheel body 210 is L2, and when the installation position of the stopper 150 satisfies: when gxl 1 is Fy × L2, the guide wheel assembly can be stably maintained in the current tilted state. At this time, as shown in fig. 6, the guide wheel lifting system is balanced and stable as a whole, and can be moved rapidly to extend one end of the spring structure 220 of the guide wheel assembly into the lower frame guide seat 310 of the excavator.

The utility model discloses a lifting device's simple structure, lifting device and leading wheel hoist and mount system's security is good, and the equilibrium stability is good.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. In the technical idea scope of the present invention, it is possible to provide a solution of the present invention with a plurality of simple modifications to avoid unnecessary repetition, and the present invention is not described separately for various possible combinations. These simple variations and combinations should also be considered as disclosed in the present invention, all falling within the scope of protection of the present invention.

Claims

1. A hoisting device for hoisting a guide wheel assembly of an excavator is characterized by comprising a supporting plate (110) and a hoisting hole plate (120);

the pallet (110) is configured for providing support to the guide wheel assembly;

the lifting hole plate (120) is located above the supporting plate (110) and forms a gap for placing the guide wheel assembly with the supporting plate (110), the lifting hole plate (120) is provided with a lifting hole for a rope to pass through, and the lifting hole and the center of gravity of the guide wheel assembly supported on the supporting plate (110) are located on the same plumb line.

2. Hoisting device according to claim 1, characterized in that the hoisting device is configured to allow the guide wheel assembly to move on the pallet (110) in a first horizontal direction, that the hoisting aperture plate (120) is provided with a plurality of said hoisting apertures in said first horizontal direction, one of said plurality of said hoisting apertures being located on the same plumb line as the centre of gravity of the guide wheel assembly supported on the pallet (110).

3. Hoisting device according to claim 2, characterized in that the hoisting device comprises a support plate (130) and two side webs (140), the support plate (130) is located above the carrier plate (110), the two side webs (140) are arranged between the support plate (130) and the carrier plate (110), the support plate (130), the carrier plate (110) and the two side webs (140) together define the gap, and the ceiling plate (120) is mounted to the support plate (130).

4. The hoisting device according to claim 3, wherein the hoisting device is configured to allow the guide wheel assembly to move on the pallet (110) in a first horizontal direction, the side webs (140) are of an arc-shaped structure, and the arc-shaped openings of the side webs (140) face the first horizontal direction.

5. The lifting device as recited in claim 3, characterized in that the lifting device includes a stop (150) disposed in the gap, the stop (150) configured to limit movement of the guide wheel assembly in the first horizontal direction.

6. The hoisting device according to claim 5, wherein the supporting plate (110), the hoisting hole plate (120), the supporting plate (130), the limiting member (150) and the two side ribs (140) are welded together.

7. Lifting device according to claim 5, characterized in that the distance from the fulcrum of the support plate (110) for supporting the guide wheel assembly to the plumb line of the center of gravity of the guide wheel assembly is L1, the weight of the guide wheel assembly is G, the force exerted by the limit piece (150) on the guide wheel assembly is Fy, the distance from the fulcrum to the contact point of the limit piece (150) with the guide wheel assembly is L2, and the limit piece (150) is configured to: g × L1 ═ Fy × L2.

8. A guide wheel hoist system, characterized in that, the guide wheel hoist system includes the hoist device of claim 5 or 6 and a guide wheel assembly.

9. The guide wheel hoist system of claim 8, characterized in that the guide wheel assembly includes a guide wheel body (210) and a spring structure (220) connected to the guide wheel body (210), a gap is provided between the guide wheel body (210) and the spring structure (220), and one end of the hoist device passes through the gap so that the pallet (110) and the hole plate (120) are respectively located at both ends of the gap.

10. The guide wheel hoist system of claim 9, characterized in that the spring structure (220) is supported to the pallet (110) near the end of the guide wheel body (210) that is at a distance L1 from the plumb line of the center of gravity of the guide wheel assembly, the weight of the guide wheel assembly being G; the stopper (150) abuts against the guide wheel body (210) and applies a force Fy to the guide wheel body (210), the distance from the end to a contact point where the stopper (150) abuts against the guide wheel body (210) is L2, and the stopper (150) is configured to: g × L1 ═ Fy × L2.