CN219472451U - Quick-change system and loader - Google Patents
Quick-change system and loader Download PDFInfo
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- CN219472451U CN219472451U CN202320455808.3U CN202320455808U CN219472451U CN 219472451 U CN219472451 U CN 219472451U CN 202320455808 U CN202320455808 U CN 202320455808U CN 219472451 U CN219472451 U CN 219472451U
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Abstract
The utility model provides a quick-change system and a loader, and belongs to the technical field of machinery. The quick change system comprises: bucket cylinder, quick change cylinder and solenoid valve; the electromagnetic valve comprises an oil inlet, a first oil outlet and a second oil outlet; the bucket oil cylinder is communicated with the oil inlet, a rodless cavity of the quick-change oil cylinder is communicated with the first oil outlet, and a rod cavity of the quick-change oil cylinder is communicated with the second oil outlet; the electromagnetic valve comprises a first state and a second state, wherein in the first state, the oil inlet is communicated with the first oil outlet, oil in the bucket oil cylinder enters a rodless cavity of the quick-change oil cylinder through the electromagnetic valve, in the second state, the oil inlet is communicated with the second oil outlet, and oil in the bucket oil cylinder enters a rod cavity of the quick-change oil cylinder through the electromagnetic valve. According to the scheme of the utility model, a main valve is not required to be added in a quick-change system, so that the cost is reduced, and the pipeline connection is facilitated.
Description
Technical Field
The utility model relates to the technical field of machinery, in particular to a quick-change system and a loader.
Background
The existing quick-change system is characterized in that a main valve is additionally provided with a pair, namely the two-pair main valve is changed into a triple main valve, the oil supply to a quick-change oil cylinder on the quick-change device is realized through the additionally provided third triple main valve, the action of the quick-change oil cylinder is pushed, and the quick-change device can be quickly disassembled. The price of the triple main valve is far higher than that of the double main valve, so that the quick-change system is high in cost and high in cost, and the inner diameter of a pipeline connected with the quick-change oil cylinder is large due to the limitation of the diameter of an oil port of the main valve, so that the quick-change oil cylinder is difficult to connect with a quick-change device, and the problems of pipeline interference and pipeline distortion often occur.
Disclosure of Invention
The embodiment of the utility model provides a quick-change system and a loader, which are used for solving the problems of high cost and difficult pipeline connection of the existing quick-change system.
In order to solve the technical problems, the embodiment of the utility model provides the following technical scheme:
the embodiment of the utility model provides a quick-change system, which comprises:
bucket cylinder, quick change cylinder and solenoid valve;
the electromagnetic valve comprises an oil inlet, a first oil outlet and a second oil outlet;
the bucket oil cylinder is communicated with the oil inlet, a rodless cavity of the quick-change oil cylinder is communicated with the first oil outlet, and a rod cavity of the quick-change oil cylinder is communicated with the second oil outlet;
the electromagnetic valve comprises a first state and a second state, wherein in the first state, the oil inlet is communicated with the first oil outlet, oil in the bucket oil cylinder enters the rodless cavity of the quick-change oil cylinder through the electromagnetic valve, in the second state, the oil inlet is communicated with the second oil outlet, and oil in the bucket oil cylinder enters the rod cavity of the quick-change oil cylinder through the electromagnetic valve.
Optionally, the rodless cavity of the quick-change oil cylinder is communicated with the oil inlet.
Optionally, the bucket cylinder is communicated with the oil inlet through an oil inlet oil way;
the inner diameter of the oil inlet oil path is in the range of 6.0mm to 7.0 mm.
Optionally, the bucket cylinder is communicated with the oil inlet path through a welded joint.
Optionally, a main valve assembly is also included;
the main valve assembly includes a first main valve;
the bucket cylinder is connected with the first main valve.
Optionally, the device also comprises a lifting oil cylinder;
the main valve assembly further comprises a second main valve;
the lifting oil cylinder is connected with the second main valve.
The embodiment of the utility model also provides a loader comprising the quick-change system.
The embodiment of the utility model also provides a loader, which comprises the steering hydraulic control system.
The beneficial effects of the utility model are as follows:
the scheme of the utility model provides a quick-change system, a bucket oil cylinder is communicated with a quick-change oil cylinder through an electromagnetic valve, a main valve is not required to be added, the cost is reduced, the pipeline connection is convenient, the reversing of the electromagnetic valve is controlled, the oil inlet is communicated with the first oil outlet in a first state of the electromagnetic valve, oil in the bucket oil cylinder enters a rodless cavity of the quick-change oil cylinder through the electromagnetic valve, so that the quick-change system is quickly assembled, the oil inlet is communicated with the second oil outlet in a second state of the electromagnetic valve, and the oil in the bucket oil cylinder enters a rod cavity of the quick-change oil cylinder through the electromagnetic valve, so that the quick-change system is quickly disassembled.
Drawings
FIG. 1 is a schematic diagram of a conventional quick-change system;
FIG. 2 is a schematic diagram of a conventional quick-change system;
FIG. 3 is a schematic diagram of a quick-change system according to an embodiment of the present utility model;
fig. 4 is a schematic structural diagram of a quick-change system according to an embodiment of the present utility model.
Reference numerals illustrate:
1-a bucket cylinder; 2-quick-change oil cylinders; 3-an electromagnetic valve; 4-an oil inlet circuit; a 5-main valve assembly; 6-lifting the oil cylinder; 7-triple main valve; 8-a pipeline connected with the quick-change oil cylinder.
Detailed Description
The present utility model will be described in detail below with reference to the drawings and the specific embodiments thereof in order to make the objects, technical solutions and advantages of the present utility model more apparent.
Before the description of the specific embodiments, the structure and the working principle of the existing quick-change system are first described as follows:
as shown in fig. 1 and 2, in the existing quick-change system, a triple main valve 7, a lifting cylinder 6, a bucket cylinder 1 and a quick-change cylinder 2 are included.
The lifting oil cylinder 6, the bucket oil cylinder 1 and the quick-change oil cylinder 2 are respectively communicated with one main valve in the triple main valves, wherein the quick-change oil cylinder 2 is communicated with the corresponding main valve in the triple main valve 7 through a pipeline 8 connected with the quick-change oil cylinder.
In the 5 ton class loader, the quick change system shown in fig. 1 and 2 is included, but because the triple main valve 7 is used, the cost is high, and because the main valve oil port is limited in size, the inner diameter of a pipeline connected with the quick change oil cylinder is also large, so that the problems of pipeline interference, friction with a front working device, pipeline distortion and the like frequently occur when the quick change oil cylinder is connected with the quick change device, and for the 8 ton class loader, the inner diameter of the pipeline connected with the quick change oil cylinder is larger, and the problems of interference, friction and distortion are more serious.
In order to solve the problems of high cost and difficult pipeline connection of the existing quick-change system, the embodiment of the utility model provides a quick-change system and a loader.
As shown in fig. 3 and 4, an embodiment of the present utility model provides a quick-change system, including:
a bucket cylinder 1, a quick-change cylinder 2 and an electromagnetic valve 3;
the electromagnetic valve 3 comprises an oil inlet P, a first oil outlet A and a second oil outlet B, the electromagnetic valve 3 further comprises an oil return port T, and the oil return port T is connected with an oil tank.
The bucket oil cylinder 1 is communicated with the oil inlet P, a rodless cavity (large cavity) of the quick-change oil cylinder 2 is communicated with the first oil outlet A, and a rod cavity (small cavity) of the quick-change oil cylinder 2 is communicated with the second oil outlet B; wherein, the rodless cavity (large cavity) of the bucket cylinder 1 is communicated with the oil inlet P;
the electromagnetic valve 3 comprises a first state and a second state, in the first state, the oil inlet P is communicated with the first oil outlet A, oil in the bucket oil cylinder 1 enters the rodless cavity of the quick-change oil cylinder 2 through the electromagnetic valve 3, so that quick assembly of a quick-change system is realized, in the second state, the oil inlet P is communicated with the second oil outlet B, and oil in the bucket oil cylinder 1 enters the rod cavity of the quick-change oil cylinder 2 through the electromagnetic valve 3, so that quick-release of the quick-change system is realized.
It should be noted that, the on-off of the oil entering the quick-change oil cylinder 2 is controlled by the stroke of the quick-change oil cylinder, when the oil in the bucket oil cylinder 1 enters the rodless cavity of the quick-change oil cylinder 2 through the electromagnetic valve 3, the oil path is disconnected when the stroke of the rodless cavity of the quick-change oil cylinder 2 reaches the maximum or limit stroke, and when the oil in the bucket oil cylinder 1 enters the rod cavity of the quick-change oil cylinder 2 through the electromagnetic valve 3, the oil path is disconnected when the stroke of the rod cavity of the quick-change oil cylinder 2 reaches the maximum or limit stroke.
In the embodiment of the utility model, the quick-change system is applied to the loader for explanation.
Alternatively, in this embodiment, a controller or a control switch may be provided in the quick-change device, and a control signal is sent to the solenoid valve 3 through the controller or the control switch to control the solenoid valve 3 to switch between the first state and the second state.
The quick-change system provided by the embodiment of the utility model can continuously use the two-way main valve without adding the main valve, thereby improving interchangeability, saving cost and facilitating pipeline connection.
In an alternative embodiment of the present utility model, the bucket cylinder 1 is communicated with the oil inlet P through an oil inlet path 4; the bucket oil cylinder 1 is communicated with the oil inlet oil way 4 through a welded joint, and the bucket oil cylinder 1 is communicated with the first oil outlet A through a pipeline 8 connected with the quick-change oil cylinder.
The inner diameter of the oil feed passage 4 is in the range of 6.0mm to 7.0mm, and preferably the inner diameter of the oil feed passage 4 is 6.5mm.
That is, the oil inlet passage 4 is realized by adding a welded joint on a steel pipe of a large cavity of the bucket cylinder 1, so that the pipeline of the oil inlet passage can be thinner, the cost is low, the connection is convenient, and the problems of pipeline distortion and the like are not easy to occur.
In an alternative embodiment of the utility model, a main valve assembly 5 is also included; the main valve assembly 5 is a two-way main valve, and the main valve assembly 5 comprises a first main valve and a second main valve;
the bucket cylinder 1 is connected with the first main valve, and the lifting cylinder 6 is connected with the second main valve.
Namely, in the quick-change system provided by the embodiment of the utility model, the two main valves which are arranged in the standard way in the existing loader are continuously used, one main valve (the second main valve) supplies oil to the lifting cylinder 6 (also called a movable arm cylinder), the other main valve (the first main valve) supplies oil to the bucket cylinder 1, and the oil inlet of the quick-change cylinder 2 leads oil from a large cavity of the bucket cylinder 1, so that the oil inlet of the bucket cylinder 1 can be realized, namely, the oil inlet of the quick-change cylinder is realized at the same time of tipping bucket, thereby pushing the quick-change cylinder 2 to act, realizing the quick-assembly of the quick-change system and realizing the quick-release of the quick-change system.
Because the oil inlet oil way 4 is realized by adding a welded joint on the large-cavity steel pipe of the bucket oil cylinder 1, the pipeline of the oil inlet oil way 4 can be thinner, the cost is low, the connection is convenient, and the pipeline distortion and the like are not easy to occur.
The quick-change system provided by the embodiment of the utility model has the following advantages:
1. the inner diameter of the oil inlet oil way is reduced, the pipeline is thinned, the pressure resistance and the wear resistance are greatly improved, the arrangement is easier, the possibility of pipeline distortion is reduced, and the service life is greatly prolonged;
2. the two-way main valve can be used as the standard of the loader, so that the interchangeability is improved, and the cost is saved;
3. the solenoid valve and the control switch (controller) are added in the quick-change system to control the state switching of the solenoid valve, so that the quick-change system is quickly assembled and disassembled.
The embodiment of the utility model also provides a loader comprising the quick-change system.
It should be noted that, the loader provided by the embodiment of the present utility model includes the quick-change system as described above, and all embodiments of the quick-change system described above are applicable to the loader, and the same or similar technical effects can be achieved.
While the foregoing is directed to the preferred embodiments of the present utility model, it will be appreciated by those skilled in the art that various modifications and changes can be made without departing from the principles of the present utility model, and such modifications and changes are intended to be within the scope of the present utility model.
Claims (7)
1. A quick change system, comprising:
a bucket oil cylinder (1), a quick-change oil cylinder (2) and an electromagnetic valve (3);
the electromagnetic valve (3) comprises an oil inlet, a first oil outlet and a second oil outlet;
the bucket oil cylinder (1) is communicated with the oil inlet, a rodless cavity of the quick-change oil cylinder (2) is communicated with the first oil outlet, and a rod cavity of the quick-change oil cylinder (2) is communicated with the second oil outlet;
the electromagnetic valve (3) comprises a first state and a second state, in the first state, the oil inlet is communicated with the first oil outlet, oil in the bucket oil cylinder (1) enters a rodless cavity of the quick-change oil cylinder (2) through the electromagnetic valve (3), in the second state, the oil inlet is communicated with the second oil outlet, and oil in the bucket oil cylinder (1) enters a rod cavity of the quick-change oil cylinder (2) through the electromagnetic valve (3).
2. The quick change system according to claim 1, characterized in that the rodless cavity of the quick change cylinder (2) communicates with the oil inlet.
3. The quick change system according to claim 1, characterized in that the bucket cylinder (1) communicates with the oil inlet via an oil inlet circuit (4);
the inner diameter of the oil inlet oil path (4) is in the range of 6.0mm to 7.0 mm.
4. A quick change system according to claim 3, characterized in that the bucket cylinder (1) communicates with the oil feed passage (4) via a welded joint.
5. The quick change system according to claim 1, further comprising a main valve assembly (5);
-said main valve assembly (5) comprises a first main valve;
the bucket cylinder (1) is connected with the first main valve.
6. The quick change system according to claim 5, further comprising a lifting cylinder (6);
the main valve assembly (5) further comprises a second main valve;
the lifting oil cylinder (6) is connected with the second main valve.
7. A loader comprising a quick change system according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320455808.3U CN219472451U (en) | 2023-03-08 | 2023-03-08 | Quick-change system and loader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320455808.3U CN219472451U (en) | 2023-03-08 | 2023-03-08 | Quick-change system and loader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219472451U true CN219472451U (en) | 2023-08-04 |
Family
ID=87442107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320455808.3U Active CN219472451U (en) | 2023-03-08 | 2023-03-08 | Quick-change system and loader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219472451U (en) |
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2023
- 2023-03-08 CN CN202320455808.3U patent/CN219472451U/en active Active
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