CN205047548U - Variable -ratio crawler controlling means - Google Patents
Variable -ratio crawler controlling means Download PDFInfo
- Publication number
- CN205047548U CN205047548U CN201520711829.2U CN201520711829U CN205047548U CN 205047548 U CN205047548 U CN 205047548U CN 201520711829 U CN201520711829 U CN 201520711829U CN 205047548 U CN205047548 U CN 205047548U
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- Prior art keywords
- sensitive switch
- pump housing
- motor
- automatically controlled
- sensitive
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- Expired - Fee Related
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Abstract
The utility model relates to a variable -ratio crawler controlling means is applicable to the traveling system that miniature crawler crane adopted constant delivery pump, fixed displacement motor. This variable -ratio crawler controlling means, including walking motor and motor, characterized by is still including walking valve piece, automatically controlled unloading valve, the first pump body and the second pump body. The system of this product can realize sharp acceleration, the effect of turning and slowing down, and the simple structure of this kind of system goes in can easily being transplanted to other equipment.
Description
Technical field
The utility model relates to a kind of variable speed crawler travel control gear, is applicable to the running gear that miniature crawler crane adopts metering pump, fixed displacement motor.
Background technique
Hoist many employings gearbox walking in the market, such device will be once damage will be difficult to maintenance; Or adopt variable displacement pump to carry out walking speed change, but this device operates loaded down with trivial details; And according to load-sensitive formula walking valve, its cost is higher again.
Model utility content
The utility model object is to provide one to solve the above-mentioned problems in the prior art, can realize linear accelerating, the variable speed crawler travel control gear of effect slowed down of turning.
The utility model object is achieved through the following technical solutions:
A kind of variable speed crawler travel control gear, comprise running motor and motor, it is characterized in that, also comprise walking valve block, automatically controlled unloading valve, first pump housing and second pump housing, the first described pump housing and second pump housing are driven by motor, and first pump housing directly supplies running motor, and second pump housing is auxiliary pump, automatically controlled unloading valve is connected on second pump housing, and walking valve block is electrically connected automatically controlled unloading valve.
As preferably, described walking valve block comprises two groups of walkings handle, the first sensitive switch, the second sensitive switch, the 3rd sensitive switch and the 4th sensitive switches, is controlled the closed energising of the first sensitive switch, the second sensitive switch and the 3rd sensitive switch, the 4th sensitive switch by walking handle respectively.
As preferably, described also includes acceleration switch, and acceleration switch is connected on automatically controlled unloading valve.
As preferably, described running motor has two groups.
As preferably, also include mounting plate, described two groups of walkings handle, the first sensitive switch, the second sensitive switch, the 3rd sensitive switch and the 4th sensitive switches are installed on it.
Compared with prior art, this product has the following advantages: the system of this product can realize linear accelerating, the effect of slowing down of turning, and this kind of system architecture is simple, easily can be transplanted in other equipment and go.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the structural representation of valve block of walking in Fig. 1.
Fig. 3 is the structural representation of another angle of Fig. 2.
Fig. 4 is the circuit theory schematic diagram of valve block and automatically controlled unloading valve of walking in Fig. 1.
Label declaration: running motor 1, motor 2, walking valve block 3, walking handle 31, first sensitive switch 32, second sensitive switch 33, the 3rd sensitive switch 34, the 4th sensitive switch 35, mounting plate 36, automatically controlled unloading valve 4, first pump housing 5, second pump housing 6, acceleration switch 7.
Embodiment
Below in conjunction with specific embodiment, the utility model is described, the following example, only for illustration of the technical solution of the utility model, does not limit protection domain of the present utility model.
Embodiment:
As Figure 1-4, the product of the present embodiment comprises running motor 1, motor 2, walking valve block 3, automatically controlled unloading valve 4, first pump housing 5 and second pump housing 6, running motor 1 has two groups, first pump housing 5 and second pump housing 6 are driven by motor 2, first pump housing 5 directly supplies running motor 1, second pump housing 6 is auxiliary pump, automatically controlled unloading valve 4 is connected on second pump housing 6, walking valve block 3 is electrically connected automatically controlled unloading valve 4, when automatically controlled unloading valve 4 is energized, second pump housing 6 provides pressure oil to main hydraulic system, drives running motor 1; During no electric circuit, the directly off-load of automatically controlled unloading valve 4.
The walking valve block 3 of the present embodiment comprises two groups of walking handle 31, first sensitive switch 32, second sensitive switches 33, the 3rd sensitive switch 34 and the 4th sensitive switches 35, is controlled the closed energising of the first sensitive switch 32, second sensitive switch 33 and the 3rd sensitive switch 34, the 4th sensitive switch 35 by walking handle 31 respectively; Also include mounting plate 36, two groups of walking handle 31, first sensitive switch 32, second sensitive switches 33, the 3rd sensitive switch 34 and the 4th sensitive switches 35 are installed on it.
The present embodiment also includes acceleration switch 7, and acceleration switch 7 is connected on automatically controlled unloading valve 4.
In practical operation when straight line moving, two handles (move ahead) forward or backward (retrogressing) simultaneously, handle touches the first sensitive switch 32, second sensitive switch 33 or the 3rd sensitive switch 34 and the 4th sensitive switch 35 and closes, automatically controlled unloading valve 4 is energized, second pump housing 6 provides pressure oil to main hydraulic system, drive running motor 1, realize accelerating function; During turning, push away (drawing) dynamic single handle, any one is closed for the first sensitive switch 32, second sensitive switch 33, the 3rd sensitive switch 34, the 4th sensitive switch 35, and electrically-controlled valve all can not close, and walking can not get accelerating, and therefore, eases turn during turning.
Be only the specific embodiment of the application above, but the application is not limited thereto, the changes that any person skilled in the art can think of, all should drops in the protection domain of the application.
Claims (5)
1. a variable speed crawler travel control gear, comprise running motor and motor, it is characterized in that: also comprise walking valve block, automatically controlled unloading valve, first pump housing and second pump housing, the first described pump housing and second pump housing are driven by motor, first pump housing directly supplies running motor, second pump housing is auxiliary pump, and automatically controlled unloading valve is connected on second pump housing, and walking valve block is electrically connected automatically controlled unloading valve.
2. variable speed crawler travel control gear according to claim 1, it is characterized in that: described walking valve block comprises two groups of walkings handle, the first sensitive switch, the second sensitive switch, the 3rd sensitive switch and the 4th sensitive switches, is controlled the closed energising of the first sensitive switch, the second sensitive switch and the 3rd sensitive switch, the 4th sensitive switch by walking handle respectively.
3. variable speed crawler travel control gear according to claim 1, it is characterized in that: described also includes acceleration switch, acceleration switch is connected on automatically controlled unloading valve.
4. variable speed crawler travel control gear according to claim 1, is characterized in that: described running motor has two groups.
5. variable speed crawler travel control gear according to claim 1, it is characterized in that: also include mounting plate, described two groups of walkings handle, the first sensitive switch, the second sensitive switch, the 3rd sensitive switch and the 4th sensitive switches are installed on it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520711829.2U CN205047548U (en) | 2015-09-15 | 2015-09-15 | Variable -ratio crawler controlling means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520711829.2U CN205047548U (en) | 2015-09-15 | 2015-09-15 | Variable -ratio crawler controlling means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205047548U true CN205047548U (en) | 2016-02-24 |
Family
ID=55341131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520711829.2U Expired - Fee Related CN205047548U (en) | 2015-09-15 | 2015-09-15 | Variable -ratio crawler controlling means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205047548U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139577A (en) * | 2017-06-27 | 2019-01-04 | 罗伯特·博世有限公司 | valve block device and method for valve block device |
| CN112739914A (en) * | 2018-08-21 | 2021-04-30 | 西门子能源美国公司 | Double-acting hydraulic actuator with different pumps for each actuation direction |
-
2015
- 2015-09-15 CN CN201520711829.2U patent/CN205047548U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139577A (en) * | 2017-06-27 | 2019-01-04 | 罗伯特·博世有限公司 | valve block device and method for valve block device |
| CN109139577B (en) * | 2017-06-27 | 2023-05-02 | 罗伯特·博世有限公司 | Valve block device and method for a valve block device |
| CN112739914A (en) * | 2018-08-21 | 2021-04-30 | 西门子能源美国公司 | Double-acting hydraulic actuator with different pumps for each actuation direction |
| CN112739914B (en) * | 2018-08-21 | 2024-02-20 | 西门子能源美国公司 | Double acting hydraulic actuator with different pumps for each actuation direction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160224 Termination date: 20170915 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |