CN209444633U - A kind of boom cylinder protecting against shock hydraulic system - Google Patents
A kind of boom cylinder protecting against shock hydraulic system Download PDFInfo
- Publication number
- CN209444633U CN209444633U CN201821803967.3U CN201821803967U CN209444633U CN 209444633 U CN209444633 U CN 209444633U CN 201821803967 U CN201821803967 U CN 201821803967U CN 209444633 U CN209444633 U CN 209444633U
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- CN
- China
- Prior art keywords
- boom cylinder
- accumulator
- loading machine
- way valve
- hydraulic system
- 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.)
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Abstract
The utility model discloses a kind of boom cylinder protecting against shock hydraulic systems, the boom cylinder is connect with multi-way valve, it is characterized in that, the oil circuit between the one of entry/exit hydraulic fluid port and multi-way valve of the boom cylinder is connected to accumulator, high-pressure ball valve is equipped between accumulator and the oil circuit.The utility model meets loading machine and absorbs the impact force that equipment passes to swing arm oil by accumulator in severe duty operation, it is ensured that the reliability of loading machine movable arm cylinder sealing element；High-pressure ball valve and accumulator are mounted on the pipeline of the big chamber of boom cylinder, when loading machine is in operation process, when equipment is by extraneous material impact, impact force is transmitted in the fluid pressure line of the big chamber of boom cylinder by swing arm to be absorbed by accumulator, reduces the spill losses of multi-way valve safety valve.
Description
Technical field
The utility model relates to a kind of boom cylinder protecting against shock hydraulic system, meet loading machine reduced in severe duty it is dynamic
Impact force suffered by arm oil cylinder, shields to loading machine movable arm cylinder, prevents boom cylinder sealing element from damaging, belongs to loading
Machine technical field.
Background technique
Hydraulic system of working generallys use system on loading machine at present are as follows: mechanical handling and pilot control hydraulic system.This
Two kinds of hydraulic system of working are working barrels directly to multi-way valve fuel feeding, then give boom cylinder fuel feeding by multi-way valve.Such as Fig. 1 institute
Show, be a kind of existing schematic diagram of boom cylinder hydraulic system comprising the rotary ink tank 3 that connect respectively with multi-way valve 2 moves
Arm oil cylinder 4, oil return filter core 5 and oil suction filter core 6, oil suction filter core 6 are connect by gear pump 1 with multi-way valve 2.This kind of structure is working
When device is impacted, it can will fill and hit power and be transmitted to boom cylinder 4, boom cylinder 4 is discharged by the safety valve on multi-way valve 2
Overload pressure, thus protect oil cylinder injury-free, and the market validation discovery loading machine for passing through the normal phase is this in severe duty
Protective effect very little of the mode to boom cylinder 4.
Summary of the invention
Problem to be solved in the utility model is: providing a kind of boom cylinder protecting against shock hydraulic system, is changing less as far as possible
On the basis of dynamic original system, considers cost, reach maximum energy conservation, it is desirable that it is compact-sized, it is easy for installation, it is at low cost
It is honest and clean.
In order to solve problem above, the technical solution of the utility model is to provide a kind of boom cylinder protecting against shock hydraulic pressure system
System, the boom cylinder are connect with multi-way valve, which is characterized in that the one of entry/exit hydraulic fluid port and multichannel of the boom cylinder
Oil circuit between valve is connected to accumulator, and high-pressure ball valve is equipped between accumulator and the oil circuit.
Boom cylinder protecting against shock hydraulic system meets loading machine and absorbs work by accumulator in severe duty operation
Device passes to the impact force of swing arm oil, it is ensured that the reliability of loading machine movable arm cylinder sealing element；High-pressure ball valve and accumulator peace
On the pipeline of the big chamber of boom cylinder, when loading machine is in operation process, and equipment is by extraneous material impact, impact
Power is transmitted in the fluid pressure line of the big chamber of boom cylinder by swing arm to be absorbed by accumulator, reduces overflowing for multi-way valve safety valve
Stream loss.
Compared with prior art, the utility model has the beneficial effects that:
Rushing for swing arm oil is passed to 1. meeting loading machine and absorbing equipment by accumulator in severe duty operation
Hit power, it is ensured that the reliability of loading machine movable arm cylinder sealing element improves the service life of boom cylinder；
2. low in cost, structure is simple, it is only necessary to increase high pressure and ask valve and accumulator, the other products than identical function exist
There is very big advantage in price；
3. it is convenient to promote, can easily switch on original system, change amount is small, while again due to price advantage,
Client is easy to receive.
Detailed description of the invention
Fig. 1 is the schematic diagram of existing boom cylinder protecting against shock hydraulic system；
Fig. 2 is the schematic diagram of boom cylinder protecting against shock hydraulic system provided by the utility model.
Specific embodiment
To be clearer and more comprehensible the utility model, hereby with preferred embodiment, and attached drawing is cooperated to be described in detail below.
Embodiment
As shown in Fig. 2, being a kind of boom cylinder protecting against shock hydraulic system hydraulic system provided by the utility model, rotating bucket oil
Cylinder 3, boom cylinder 4, oil return filter core 5, oil suction filter core 6 are connect with multi-way valve 2 respectively, and oil suction filter core 6 passes through gear pump 1 and multichannel
Valve 2 connects.Oil circuit between the one of entry/exit hydraulic fluid port and multi-way valve 2 of boom cylinder 4 is connected to accumulator 8, accumulator 8 with
High-pressure ball valve 7 is accessed between the oil circuit.
Increase high-pressure ball valve 7 and accumulator 8 in the big lumen road of hydraulic system of working boom cylinder；When user need using
When the function, open high-pressure ball valve 7, when high-pressure ball valve 7 open after, loading machine in operation process equipment by
The foreign impacts power arrived is transmitted in the hydraulic system pipeline of the big chamber of boom cylinder 4 by equipment, is absorbed by accumulator 8,
So as to ensure the reliability of loading machine movable arm cylinder sealing element；Improve the service life of boom cylinder；Reduce working hydraulic pressure
The spill losses of system safety valve.
Claims (1)
1. a kind of boom cylinder protecting against shock hydraulic system, the boom cylinder (4) connect with multi-way valve (2), which is characterized in that institute
It states the oil circuit between one of entry/exit hydraulic fluid port of boom cylinder (4) and multi-way valve (2) to be connected to accumulator (8), accumulator (8)
High-pressure ball valve (7) are equipped between the oil circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821803967.3U CN209444633U (en) | 2018-11-03 | 2018-11-03 | A kind of boom cylinder protecting against shock hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821803967.3U CN209444633U (en) | 2018-11-03 | 2018-11-03 | A kind of boom cylinder protecting against shock hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209444633U true CN209444633U (en) | 2019-09-27 |
Family
ID=68011036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821803967.3U Active CN209444633U (en) | 2018-11-03 | 2018-11-03 | A kind of boom cylinder protecting against shock hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209444633U (en) |
-
2018
- 2018-11-03 CN CN201821803967.3U patent/CN209444633U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |