CN204113780U - A kind of motor quick relief system - Google Patents
A kind of motor quick relief system Download PDFInfo
- Publication number
- CN204113780U CN204113780U CN201420530725.7U CN201420530725U CN204113780U CN 204113780 U CN204113780 U CN 204113780U CN 201420530725 U CN201420530725 U CN 201420530725U CN 204113780 U CN204113780 U CN 204113780U
- Authority
- CN
- China
- Prior art keywords
- motor
- hydraulic motor
- oil hydraulic
- direct
- acting overflow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000003921 oil Substances 0.000 claims abstract description 20
- 238000006073 displacement reaction Methods 0.000 claims abstract description 11
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Operation Control Of Excavators (AREA)
Abstract
The utility model relates to a kind of motor quick relief system, comprise variable displacement pump, oil hydraulic motor, the hydraulic oil container with Pilot operated safety valve, oil hydraulic motor working hole is connected with hydraulic oil container by variable displacement pump, it is characterized in that also being provided with two direct-acting overflow valves, two direct-acting overflow valves are arranged on oil hydraulic motor working hole two ends respectively and direction is contrary.Described oil hydraulic motor is floating type to be arranged on motor bracket.The opening time of described direct-acting overflow valve is within 10 seconds.The utility model has simple for structure, safe and reliable, the problem that rises violently of system pressure when solving crushing hard material, extension device working life, avoids meeting accident.
Description
Technical field
The utility model relates to a kind of motor quick relief system, and the fragmentation being mainly used in domestic garbage crusher drives.
Background technique
Domestic garbage crusher equipment drives oil hydraulic motor by variable displacement pump, and band movable arbor rotates, and carrys out broken material.Because domestic refuse classification is undesirable, cause waste composition complicated.When running into hard broken material, broken moment of torsion increases suddenly, and now security of system valve has little time to open, and system pressure can be caused to rise violently instantaneously, easily cause damage to equipment, also likely jeopardize personal safety time serious.
Model utility content
The technical problem that the utility model solves is the above-mentioned defect overcoming prior art, and provides a kind of motor quick relief system.
The utility model solves the problems of the technologies described above adopted technological scheme: a kind of motor quick relief system, comprise variable displacement pump, oil hydraulic motor, the hydraulic oil container with Pilot operated safety valve, oil hydraulic motor working hole is connected with hydraulic oil container by variable displacement pump, it is characterized in that also being provided with two direct-acting overflow valves, two direct-acting overflow valves are arranged on oil hydraulic motor working hole two ends respectively and direction is contrary, to improve the sensitivity of feedback, safeguards system safety.
Oil hydraulic motor described in the utility model is floating type to be arranged on motor bracket, and motor bracket can 360 ° of rotations.
The opening time of direct-acting overflow valve described in the utility model is within 10 seconds.
The utility model has simple for structure, safe and reliable, the problem that rises violently of system pressure when solving crushing hard material, extension device working life, avoids meeting accident.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment.
In figure: 1-oil hydraulic motor, 2-is with the direct-acting overflow valve of pre-washing function, and 3-is with the variable displacement pump of Pilot operated safety valve, 4-hydraulic oil container.
Embodiment
See Fig. 1, in the closed hydraulic loop of prior art, (wherein oil hydraulic motor 1 unloading port I connects hydraulic oil container 4 to the utility model embodiment motor quick relief system, two output terminals A, the B of the variable displacement pump 3 with Pilot operated safety valve hold with the working hole L of oil hydraulic motor 1 respectively, R holds and is connected, variable displacement pump 3 unloading port L1 connects hydraulic oil container 4) in add two direct-acting overflow valves (safety valve) 2, improve feedback sensitivity.These two direct-acting overflow valves 2 are arranged on the working hole two ends (L end and R end) of oil hydraulic motor 1 respectively and direction is contrary, and its unloading port connects hydraulic oil container 4.When load increases suddenly, high pressure feeds back from oil hydraulic motor 1 to variable displacement pump 3.When pressure reaches the cracking pressure of direct-acting overflow valve 2, direct-acting overflow valve 2 is opened rapidly, thus the system pressure that the Pilot operated safety valve delay of feedback avoiding dependent variable pump 3 causes rises violently, and has ensured the safety of system.
The safety valve that usual closed system carries is leading type, and its speed of response is slow, and about more than 20 second ability is opened completely.Want head it off must improve the speed of response of safety valve, therefore increase direct-acting overflow valve 2, within valve opening time is reduced to 10 seconds at the working hole of oil hydraulic motor 1.The installation of oil hydraulic motor 1 have selected floating type installation.When operation mechanism is subject to impacting, motor bracket can 360 ° float, add buffering, reduce impact.
The equivalent transformation of every technical solutions of the utility model and technical characteristics or combination, all should think and fall into protection domain of the present utility model.
Claims (3)
1. a motor quick relief system, comprise variable displacement pump, oil hydraulic motor, the hydraulic oil container with Pilot operated safety valve, oil hydraulic motor working hole is connected with hydraulic oil container by variable displacement pump, it is characterized in that: be also provided with two direct-acting overflow valves, two direct-acting overflow valves are arranged on oil hydraulic motor working hole two ends respectively and direction is contrary.
2. motor quick relief system according to claim 1, is characterized in that: described oil hydraulic motor is floating type to be arranged on motor bracket.
3. motor quick relief system according to claim 1 and 2, is characterized in that: the opening time of described direct-acting overflow valve is within 10 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420530725.7U CN204113780U (en) | 2014-09-16 | 2014-09-16 | A kind of motor quick relief system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420530725.7U CN204113780U (en) | 2014-09-16 | 2014-09-16 | A kind of motor quick relief system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204113780U true CN204113780U (en) | 2015-01-21 |
Family
ID=52331094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420530725.7U Expired - Lifetime CN204113780U (en) | 2014-09-16 | 2014-09-16 | A kind of motor quick relief system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204113780U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864113A (en) * | 2016-06-14 | 2016-08-17 | 碎得机械(北京)有限公司 | Four-axis shearing crusher |
| CN105909580A (en) * | 2016-06-14 | 2016-08-31 | 碎得机械(北京)有限公司 | Double-shaft shearing type crusher |
| CN105909579A (en) * | 2016-06-14 | 2016-08-31 | 碎得机械(北京)有限公司 | Single-shaft shearing-cutting crushing machine |
-
2014
- 2014-09-16 CN CN201420530725.7U patent/CN204113780U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864113A (en) * | 2016-06-14 | 2016-08-17 | 碎得机械(北京)有限公司 | Four-axis shearing crusher |
| CN105909580A (en) * | 2016-06-14 | 2016-08-31 | 碎得机械(北京)有限公司 | Double-shaft shearing type crusher |
| CN105909579A (en) * | 2016-06-14 | 2016-08-31 | 碎得机械(北京)有限公司 | Single-shaft shearing-cutting crushing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150121 |