CN204783961U - Forge and press high -efficient heavily loaded work robot cart walking hydraulic motor brake circuit - Google Patents
Forge and press high -efficient heavily loaded work robot cart walking hydraulic motor brake circuit Download PDFInfo
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- CN204783961U CN204783961U CN201520361119.1U CN201520361119U CN204783961U CN 204783961 U CN204783961 U CN 204783961U CN 201520361119 U CN201520361119 U CN 201520361119U CN 204783961 U CN204783961 U CN 204783961U
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Abstract
The utility model relates to a forge and press high -efficient heavily loaded work robot cart walking hydraulic motor brake circuit. Including hydraulic motor, hydraulic motor connects tribit four way solenoid valve, the overflow valve is connected to the hydraulic motor oil -out, the oil inlet of overflow valve, oil -out both sides set up the check valve respectively, wherein set up reverse setting of check valve in the oil inlet both sides, set up reverse setting of check valve in the oil -out both sides, the direction of its setting of check valve of overflow valve oil inlet both sides makes pressure oil get into the overflow valve through the check valve, the direction of its setting of check valve of overflow valve oil -out both sides makes pressure oil flow back to the oil tank through the check valve. The utility model provides a simple structure, the forge and press high -efficient heavily loaded work robot cart walking hydraulic motor brake circuit that the reliable operation is stable.
Description
Technical field
The utility model relates to the efficient heavily loaded Work robot large vehicle walking brake circuit of hydraulic motor of a kind of forging and stamping.
Background technique
Due to large vehicle walking, to have start and stop fast, and walking is steady, and speed is high, and the characteristic such as to brake reliable, this just needs the oil hydraulic motor driven all must be provided with the needs slowing down hydraulic shock and repairing in two oil circuits.
The oil outlet B of guide type sequence valve is connected to fuel tank by former design, when inlet pressure is higher than leader sequence valve pressure, the working principle of leader sequence valve is utilized to make filler opening A pressure reduce by oil outlet B pressure release oil sump tank and stablize the pressure at filler opening A place, the pressure limiting of oil hydraulic motor hydraulic brake circuit can be realized in theory, pressure-keeping functions, in sequence valve, as long as the spring pressure of frictional force and pilot valve that the spool of sliding valve structure overcomes spool and valve body in theory just can move, but in actual applications, due to the form variations of spool and concentricity poor, in use there will be clamping phenomenon is because spool force in radial imbalance caused, it can make spool move difficulty, hydraulic operation is malfunctioning and cause the explosion of motor or badly damaged.
Model utility content
The utility model is for above-mentioned defect, and object is to provide that a kind of structure is simple, the efficient heavily loaded Work robot large vehicle walking brake circuit of hydraulic motor of forging and stamping of reliable and stable work.
The technical solution adopted in the utility model is for this reason: the utility model comprises oil hydraulic motor, and described oil hydraulic motor connects three position four-way electromagnetic valve, and described oil hydraulic motor oil outlet connects relief valve;
Filler opening, the oil outlet both sides of described relief valve arrange one-way valve respectively, be wherein arranged on filler opening both sides one-way valve oppositely arrange, the one-way valve being arranged on oil outlet both sides is oppositely arranged;
Its direction arranged of the one-way valve of described relief valve filler opening both sides makes pressure oil enter relief valve by one-way valve, and its direction arranged of the one-way valve of described relief valve oil outlet both sides makes pressure oil be back to fuel tank by one-way valve.
Described three position four-way electromagnetic valve is Y type three position four-way electromagnetic valve.
The pilot valve of described relief valve is cone valve structure.
The utility model has the advantages that: 1) the utility model adopts four one-way valves and a pilot operated compound relief valve to constitute overflow bridge, when system pressure exceedes setting pressure, pilot poppet valve is opened, pressure oil gets back to fuel tank by damping hole, pilot poppet valve, now because hydraulic oil is by the flowing of damping hole, main valve plug pressure at two ends is caused to differ, this pressure difference exceedes spring pressure and spool is moved, open the passage of A and B, realize overflow, realize the pressure limiting of oil hydraulic motor hydraulic brake circuit, pressure-keeping functions; 2) because the pilot valve of pilot operated compound relief valve is cone valve structure, its superpressure open and the sensitivity that resets far away higher than guiding valve, greatly reduce system overpressure or moment superpressure and cause hydraulic shock, serve the function of protection oil hydraulic motor.
Accompanying drawing explanation
Fig. 1 is the utility model hydraulic scheme.
Fig. 2 is prior art hydraulic scheme.
Embodiment
The utility model comprises oil hydraulic motor, and described oil hydraulic motor connects three position four-way electromagnetic valve, and described oil hydraulic motor oil outlet connects relief valve;
Filler opening, the oil outlet both sides of described relief valve arrange one-way valve respectively, be wherein arranged on filler opening both sides one-way valve oppositely arrange, the one-way valve being arranged on oil outlet both sides is oppositely arranged;
Its direction arranged of the one-way valve of described relief valve filler opening both sides makes pressure oil enter relief valve by one-way valve, and its direction arranged of the one-way valve of described relief valve oil outlet both sides makes pressure oil be back to fuel tank by one-way valve.
Described three position four-way electromagnetic valve is Y type three position four-way electromagnetic valve.
The pilot valve of described relief valve is cone valve structure.
Claims (3)
1. forge and press efficient heavily loaded Work robot large vehicle walking brake circuit of hydraulic motor, it is characterized in that, comprise oil hydraulic motor, described oil hydraulic motor connects three position four-way electromagnetic valve, and described oil hydraulic motor oil outlet connects relief valve;
Filler opening, the oil outlet both sides of described relief valve arrange one-way valve respectively, be wherein arranged on filler opening both sides one-way valve oppositely arrange, the one-way valve being arranged on oil outlet both sides is oppositely arranged;
Its direction arranged of the one-way valve of described relief valve filler opening both sides makes pressure oil enter relief valve by one-way valve, and its direction arranged of the one-way valve of described relief valve oil outlet both sides makes pressure oil be back to fuel tank by one-way valve.
2. the efficient heavily loaded Work robot large vehicle walking brake circuit of hydraulic motor of forging and stamping according to claim 1, it is characterized in that, described three position four-way electromagnetic valve is Y type three position four-way electromagnetic valve.
3. the efficient heavily loaded Work robot large vehicle walking brake circuit of hydraulic motor of forging and stamping according to claim 1, it is characterized in that, the pilot valve of described relief valve is cone valve structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520361119.1U CN204783961U (en) | 2015-05-31 | 2015-05-31 | Forge and press high -efficient heavily loaded work robot cart walking hydraulic motor brake circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520361119.1U CN204783961U (en) | 2015-05-31 | 2015-05-31 | Forge and press high -efficient heavily loaded work robot cart walking hydraulic motor brake circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204783961U true CN204783961U (en) | 2015-11-18 |
Family
ID=54524017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520361119.1U Active CN204783961U (en) | 2015-05-31 | 2015-05-31 | Forge and press high -efficient heavily loaded work robot cart walking hydraulic motor brake circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204783961U (en) |
-
2015
- 2015-05-31 CN CN201520361119.1U patent/CN204783961U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |