CN202545393U - Double-balanced brake control function valve bank of motor - Google Patents
Double-balanced brake control function valve bank of motor Download PDFInfo
- Publication number
- CN202545393U CN202545393U CN2012200795912U CN201220079591U CN202545393U CN 202545393 U CN202545393 U CN 202545393U CN 2012200795912 U CN2012200795912 U CN 2012200795912U CN 201220079591 U CN201220079591 U CN 201220079591U CN 202545393 U CN202545393 U CN 202545393U
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- China
- Prior art keywords
- motor
- valve
- oil
- fluid port
- hydraulic fluid
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- Expired - Fee Related
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Abstract
The utility model discloses a double-balanced brake control function valve bank of a motor. The double-balanced brake control function valve bank comprises oil ports A and B connected with a power oil line, and oil ports A' and B' connected with the hydraulic motor, wherein a brake oil line is arranged between the oil ports A and B; the BR oil port of the brake oil line is connected with a brake of the motor; a pair of balanced valves for protecting the motor are arranged between the oil ports A' and B'. The double-balanced brake control function valve bank also comprises a shuttle valve and a pressure-reducing overflow valve which are arranged on the valve body; and a valve block allows the oil ports of the balanced valves, the shuttle valve and the pressure-reducing overflow valve to be communicated with one another correspondingly through oil ducts. The double-balanced brake control function valve bank can be connected with the hydraulic motor directly, thus saving space, reducing costs and improving a protective action on the motor.
Description
Technical field: the utility model relates to a kind of duty valve group, and especially a kind of motor is with the valve group of two balancing brake control functions.
Background technique: existing motor control duty valve group is generally independent structures, take up room, and cost is high.
Summary of the invention: to the deficiency of above-mentioned existing technology, the utility model provides a kind of valve group that can be directly installed on the two balancing brake control functions on the oil hydraulic motor.
For realizing above-mentioned purpose; The technological scheme that the utility model adopts is: motor is with two balancing brake control duty valve groups; Comprise the A, the B hydraulic fluid port that are connected with power oil-duct; The A ' that is connected with oil hydraulic motor, B ' hydraulic fluid port are provided with brake circuit between A, the B hydraulic fluid port, and the BR hydraulic fluid port of brake circuit connects the break of motor; The a pair of equilibrium valve that is used to protect motor is arranged between A ', the B ' hydraulic fluid port, also comprise the shuttle valve and decompression relief valve that are on the valve body, the valve piece is communicated with through the hydraulic fluid port that oil duct overflows equilibrium valve, shuttle valve and decompression accordingly.
The utility model can directly be connected with oil hydraulic motor, has saved the space, has reduced expense, and has improved the protective action of motor.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the fundamental diagram of the utility model.
Embodiment:
As shown in Figure 1: motor comprises the A, the B hydraulic fluid port that are connected with power oil-duct with two balancing brake control duty valve groups, and the A ' that is connected with oil hydraulic motor, B ' hydraulic fluid port are provided with brake circuit between A, the B hydraulic fluid port, and the BR hydraulic fluid port of brake circuit connects the break of motor; The a pair of equilibrium valve 2 that is used to protect motor is arranged between A ', the B ' hydraulic fluid port, also comprise the shuttle valve 4 and decompression relief valve 5 that are on the valve body 1, the valve piece is communicated with through the hydraulic fluid port of oil duct with equilibrium valve 2, shuttle valve 4 and decompression excessive 5 accordingly.
As shown in Figure 2: A, B hydraulic fluid port are connected with power oil-duct, and A ', B ' hydraulic fluid port are connected with the motor hydraulic fluid port, and the BR hydraulic fluid port connects the break of motor; The L mouth is for leaking hydraulic fluid port, and A is when the B hydraulic fluid port is pressed; Pressure at first can be given the motor brake fuel feeding through the BR hydraulic fluid port through shuttle valve again behind the decompression relief valve, the setting pressure of the relief valve that reduces pressure this moment is the cracking pressure of motor brake, adopts the effect of decompression relief valve here; Mainly be in order to reduce the pressure of power oil; In order to avoid the damage motor brake can be laid down unnecessary pressure simultaneously through leaking hydraulic fluid port, the setting pressure of equilibrium valve is more than 1.3 times of maximum load; Prevent that load force or inertial force from having the possibility of overload, the protection oil hydraulic motor.
Claims (1)
1. motor is with two balancing brake control duty valve groups; It is characterized in that: comprise the A, the B hydraulic fluid port that are connected with power oil-duct; The A ' that is connected with oil hydraulic motor, B ' hydraulic fluid port are provided with brake circuit between A, the B hydraulic fluid port, and the BR hydraulic fluid port of brake circuit connects the break of motor; The a pair of equilibrium valve that is used to protect motor is arranged between A ', the B ' hydraulic fluid port, also comprise the shuttle valve and decompression relief valve that are on the valve body, the valve piece is communicated with through the hydraulic fluid port that oil duct overflows equilibrium valve, shuttle valve and decompression accordingly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200795912U CN202545393U (en) | 2012-03-06 | 2012-03-06 | Double-balanced brake control function valve bank of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200795912U CN202545393U (en) | 2012-03-06 | 2012-03-06 | Double-balanced brake control function valve bank of motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202545393U true CN202545393U (en) | 2012-11-21 |
Family
ID=47166035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200795912U Expired - Fee Related CN202545393U (en) | 2012-03-06 | 2012-03-06 | Double-balanced brake control function valve bank of motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202545393U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016435A (en) * | 2012-12-27 | 2013-04-03 | 宁波广天赛克思液压有限公司 | Valve for preventing hydraulic motor from reversing |
| CN103742486A (en) * | 2014-01-07 | 2014-04-23 | 龙工（上海）精工液压有限公司 | Anti-reversal valve for excavator rotary motor |
-
2012
- 2012-03-06 CN CN2012200795912U patent/CN202545393U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016435A (en) * | 2012-12-27 | 2013-04-03 | 宁波广天赛克思液压有限公司 | Valve for preventing hydraulic motor from reversing |
| CN103016435B (en) * | 2012-12-27 | 2015-01-21 | 宁波广天赛克思液压有限公司 | Valve for preventing hydraulic motor from reversing |
| CN103742486A (en) * | 2014-01-07 | 2014-04-23 | 龙工（上海）精工液压有限公司 | Anti-reversal valve for excavator rotary motor |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20200306 |