CN220485163U - Mass center variable position type mechanism meeting railway transportation requirements and crane - Google Patents
Mass center variable position type mechanism meeting railway transportation requirements and crane Download PDFInfo
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- CN220485163U CN220485163U CN202321428698.8U CN202321428698U CN220485163U CN 220485163 U CN220485163 U CN 220485163U CN 202321428698 U CN202321428698 U CN 202321428698U CN 220485163 U CN220485163 U CN 220485163U
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- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 239000000725 suspension Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The utility model discloses a mass center variable position mechanism and a crane which meet railway transportation requirements, wherein the mass center variable position mechanism comprises a frame bracket assembly, a connecting plate assembly, a first frame pin shaft, a counterweight pin shaft and a counterweight bracket; the counterweight bracket is arranged at the top of the counterweight and is provided with a through hole; the frame bracket component is arranged at the bottom of the frame, and a space for installing a counterweight is reserved at the lower part of the frame bracket component; the counterweight pin shaft is connected with the through hole of the counterweight bracket and the lower end of the connecting plate assembly, and the upper end of the connecting plate assembly is connected with the frame bracket assembly through the first frame pin shaft.
Description
Technical Field
The utility model relates to a mass center variable position type mechanism meeting railway transportation requirements and a crane, and belongs to the technical field of cranes.
Background
With the development of modern industry, lifting operation is increasing, and the operation sites of the crane tend to be wide and scattered. Wheeled cranes have highway driving capability, but when facing ultra-long distance transitions, highway driving efficiency is low for users with tight period and time requirements, and the demands cannot be met. Therefore, the whole railway transportation of the crane is a more efficient transfer mode, and becomes a more optimal choice.
When the whole railway transportation mode is adopted for transferring, the height of the whole mass center of the crane and the railway transportation flat plate is required to meet the requirement that the distance from the rail surface is not more than 2m, and transportation is allowed. For the crane, the upper part mainly bears the lifting operation function, and the safety and reliability of the operation are required to be ensured, so that the weight of the upper part generally occupies most of the weight of the whole crane, the mass center of the whole crane is higher, and a method for reducing the mass center height of the whole crane is required to meet the mass center height requirement of railway transportation.
The method for adjusting the height of the mass center commonly used by the crane at present adopts the hydro-pneumatic suspension technology to adjust the height of the vehicle (as shown in figure 1), thereby achieving the effect of changing the height of the mass center. The crane adopting the hydro-pneumatic suspension technology, the axle is connected with the frame through the suspension cylinder, the lifting and the lowering of the height of the vehicle are realized through the extension and the retraction of the suspension cylinder, the range of the height adjustment of the vehicle is determined by the travel of the suspension cylinder, and the occupied space of the suspension cylinder is limited by the layout of the whole vehicle because the height of the whole vehicle is limited, so that the travel of the suspension cylinder is generally smaller, the purpose of adjusting the height of the mass center in a large range cannot be achieved, and when the difference between the height of the whole mass center of the crane and the required height of the mass center is larger, the existing adjusting method cannot meet the requirement.
Disclosure of Invention
The utility model aims to provide a mass center variable position mechanism and a crane meeting railway transportation requirements, and solves the problems that the prior crane in the prior art is high in mass center height and cannot meet the railway transportation requirements.
In order to achieve the above object, the present utility model adopts the following technical scheme:
a mass center variable position type mechanism meeting railway transportation requirements comprises a frame support assembly, a connecting plate assembly, a first frame pin shaft, a counterweight pin shaft and a counterweight support;
the counterweight bracket is arranged at the top of the counterweight and is provided with a through hole;
the frame bracket component is arranged at the bottom of the frame, and a space for installing a counterweight is reserved at the lower part of the frame bracket component;
the counterweight pin shaft is connected with the through hole of the counterweight bracket and the lower end of the connecting plate assembly, and the upper end of the connecting plate assembly is connected with the frame bracket assembly through the first frame pin shaft.
Further, the frame bracket assembly is a first frame bracket, the first frame bracket is arranged on two side walls of the supporting leg device of the frame, and a plurality of positioning holes are formed in the first frame bracket along the vertical direction.
Further, the connecting plate assembly is a first connecting plate assembly, a plurality of connecting holes matched with the positioning holes on the first frame support are formed in the first connecting plate assembly along the vertical direction, and the connecting holes are connected with the positioning holes through first frame pin shafts.
Further, the frame bracket assemblies are arranged at the front end of the bottom of the frame in pairs, each group of frame bracket assemblies comprises a second frame bracket and a third frame bracket which are arranged at intervals, a positioning hole is formed in the second frame bracket, and a pin shaft hole and a positioning hole are formed in the third frame bracket.
Further, the connecting plate assembly is a second connecting plate assembly with an L-shaped structure, a second frame pin shaft is arranged at the upper end of the second connecting plate assembly, and the second frame pin shaft is fixed in a pin shaft hole on the third frame bracket.
Further, the upper end of the second connecting plate assembly is provided with a first unthreaded hole, and the lower end of the second connecting plate assembly is provided with a second unthreaded hole;
the distance between the second unthreaded hole and the second frame pin shaft is equal to the distance between the second frame bracket positioning hole and the third frame bracket pin shaft hole.
A crane comprising a centre of mass variable displacement mechanism according to any preceding claim which meets railway transportation requirements.
The utility model has the beneficial effects that:
1. the method for reducing the mass center height of the crane in the railway transportation state can conveniently realize the great reduction of the mass center height of the crane so as to meet the railway transportation requirement and improve the remote transfer efficiency of the crane.
2. The mechanism for reducing the mass center height of the crane can realize rigid connection of the counterweight and the frame when in use, can be carried on a vehicle when not in use, and is convenient and practical.
Drawings
FIG. 1 is a prior crane centroid height adjustment scheme;
FIG. 2 is a diagram of a crane centroid height adjustment scheme in accordance with the present utility model;
FIG. 3 is a connection state diagram of a first embodiment of the present utility model;
FIG. 4 is a diagram showing a separation state according to the first embodiment of the present utility model;
FIG. 5 is a connection state diagram of a second embodiment of the present utility model;
fig. 6 is a separation state diagram of a second embodiment of the present utility model.
Meaning of reference numerals in the drawings: 1-a frame; 2-a first connector plate assembly; 3-balancing weight; 4-a first frame support; 5-a counterweight support; 6-a first frame pin; 7-a counterweight pin shaft; 8-a second frame pin; 9-a second frame bracket; 10-a second web assembly; 11-a third frame bracket.
Description of the embodiments
The utility model is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and are not intended to limit the scope of the present utility model.
The embodiment discloses a mass center variable position type mechanism meeting railway transportation requirements, as shown in fig. 2. The weight of the counterweight in each part of the crane upper assembly part is large, the shape is regular and the density is concentrated, and the disassembly, assembly and placement are more convenient than those of other large parts, so that the counterweight is selected to be lowered to reduce the mass center height of the crane. When the whole crane is transported by railway, the counterweight of the crane is placed below the frame and is rigidly connected with the frame, so that the purpose of reducing the mass center height of the crane is achieved.
Examples
The mechanism comprises a counterweight bracket 5, a first frame bracket 4, a first connecting plate assembly 2, a first frame pin 6 and a counterweight pin 7, and the details of the counterweight pin 7 are shown in figures 3 and 4. The first frame bracket 4 is arranged on two side walls of the leg device of the frame 1, and the first frame bracket 4 is provided with a plurality of positioning holes along the vertical direction. The top of the counterweight 3 is provided with a counterweight bracket 5, and the counterweight bracket 5 is provided with a through hole. When the counterweight and the frame are required to be connected, the counterweight bracket 5 is connected to the lower end of the first connecting plate assembly 2 through a counterweight pin shaft 7, the upper end of the first connecting plate assembly 2 is fixed on the first frame bracket 4 through a first frame pin shaft, and the first connecting plate assembly 2 is also provided with a plurality of connecting holes along the vertical direction, so that the positioning holes at different heights on the first frame bracket 4 can be matched; when the counterweight needs to be separated from the frame, the first connecting plate assembly 2 is moved to a high position, and the first connecting plate assembly 2 is fixed on the first frame bracket 4 through the first frame pin 6 and the counterweight pin 7. In use, the weight support 5 may also be directly attached to a suitable locating hole of the first frame support 4.
Examples
The mechanism comprises a counterweight bracket 5, a frame bracket assembly, a second connecting plate assembly 10, a first frame pin 6, a counterweight pin 7 and a second frame pin 8, and the details are shown in fig. 5 and 6. The frame bracket components are arranged at the front end of the frame 1 in pairs, each group of frame bracket components comprises a second frame bracket 9 and a third frame bracket 11, a positioning hole is formed in the second frame bracket 9, and a pin shaft hole and a positioning hole are formed in the third frame bracket 11; the second connecting plate assembly 10 is of an L-shaped structure, a second frame pin shaft 8 is arranged on the second connecting plate assembly 10, the second connecting plate assembly 10 can rotate around the pin shaft hole through the second frame pin shaft 8 fixed in the pin shaft hole on the third frame support 11, a first unthreaded hole is formed in the upper end of the second connecting plate assembly 10, a second unthreaded hole is formed in the lower end of the second connecting plate assembly 10, and the distance between the second unthreaded hole and the second frame pin shaft 8 is equal to the distance between a positioning hole on the second frame support 9 and the pin shaft hole on the third frame support 11. When the counterweight needs to be separated from the frame, the counterweight pin shaft 7 and the first frame pin shaft 6 are pulled out, then the second connecting plate assembly 10 is rotated around the second frame pin shaft 8, and then the counterweight pin shaft 7 is fixed in a hole of the second frame bracket 9.
Examples
A crane employing the centroid variable displacement mechanism of the first and second embodiments.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present utility model, and such modifications and variations should also be regarded as being within the scope of the utility model.
Claims (7)
1. The mass center variable position type mechanism meeting the railway transportation requirement is characterized by comprising a frame bracket assembly, a connecting plate assembly, a first frame pin shaft (6), a counterweight pin shaft (7) and a counterweight bracket (5);
the counterweight bracket (5) is arranged at the top of the counterweight, and a through hole is formed in the counterweight bracket (5);
the frame bracket component is arranged at the bottom of the frame, and a space for installing a counterweight is reserved at the lower part of the frame bracket component;
the counterweight pin shaft (7) is connected with a through hole of the counterweight bracket (5) and the lower end of the connecting plate assembly, and the upper end of the connecting plate assembly is connected to the frame bracket assembly through the first frame pin shaft (6).
2. The mass center variable displacement mechanism meeting railway transportation requirements according to claim 1, wherein the frame bracket assembly is a first frame bracket (4), the first frame bracket (4) is arranged on two side walls of a leg device of a frame, and the first frame bracket (4) is provided with a plurality of positioning holes along the vertical direction.
3. The mass center variable position mechanism meeting railway transportation requirements according to claim 2, wherein the connecting plate assembly is a first connecting plate assembly (2), the first connecting plate assembly (2) is provided with a plurality of connecting holes matched with positioning holes on a first frame support (4) along the vertical direction, and the connecting holes are connected with the positioning holes through first frame pin shafts (6).
4. The mass center variable position mechanism meeting railway transportation requirements according to claim 1, wherein the frame bracket assemblies are arranged at the front end of the bottom of the frame (1) in pairs, each group of frame bracket assemblies comprises a second frame bracket (9) and a third frame bracket (11) which are arranged at intervals, positioning holes are formed in the second frame bracket (9), and pin holes and positioning holes are formed in the third frame bracket (11).
5. The mass center variable position mechanism meeting railway transportation requirements according to claim 4, wherein the connecting plate assembly is a second connecting plate assembly (10) with an L-shaped structure, a second frame pin shaft (8) is arranged at the upper end of the second connecting plate assembly (10), and the second frame pin shaft (8) is fixed in a pin shaft hole on the third frame bracket (11).
6. The mass center variable position mechanism meeting railway transportation requirements according to claim 5, wherein the upper end of the second connecting plate assembly (10) is provided with a first unthreaded hole, and the lower end is provided with a second unthreaded hole;
the distance between the second unthreaded hole and the second frame pin shaft (8) is equal to the distance between the second frame bracket (9) positioning hole and the third frame bracket (11) pin shaft hole.
7. A crane comprising a centre of mass variable displacement mechanism according to any one of claims 1 to 6 which meets railway transportation requirements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321428698.8U CN220485163U (en) | 2023-06-06 | 2023-06-06 | Mass center variable position type mechanism meeting railway transportation requirements and crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321428698.8U CN220485163U (en) | 2023-06-06 | 2023-06-06 | Mass center variable position type mechanism meeting railway transportation requirements and crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220485163U true CN220485163U (en) | 2024-02-13 |
Family
ID=89827615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321428698.8U Active CN220485163U (en) | 2023-06-06 | 2023-06-06 | Mass center variable position type mechanism meeting railway transportation requirements and crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220485163U (en) |
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2023
- 2023-06-06 CN CN202321428698.8U patent/CN220485163U/en active Active
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