CN202833424U - Buffer device of hydrocylinder - Google Patents
Buffer device of hydrocylinder Download PDFInfo
- Publication number
- CN202833424U CN202833424U CN 201220390569 CN201220390569U CN202833424U CN 202833424 U CN202833424 U CN 202833424U CN 201220390569 CN201220390569 CN 201220390569 CN 201220390569 U CN201220390569 U CN 201220390569U CN 202833424 U CN202833424 U CN 202833424U
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- contiguous block
- accumulator
- communicated
- hole
- buffering device
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Abstract
The utility model relates to a buffer device of a hydrocylinder, which is provided with the hydrocylinder (1), a connecting block (7), an electromagnetic valve (3), and an energy storage (6). The first end of the connecting block (7) is connected with the hydrocylinder (1) and the second end of the connecting block (7) is connected with the energy storage (6). The connecting block (7) is provided with a through hole (70) communicated with a rodless chamber of the hydrocylinder and the energy storage. The electromagnetic valve is used to cut off or connect the through hole (70). When the through hole of the connecting block is communicated, the hydrocylinder has the buffer effect, while the through hole is cut off, and the hydrocylinder is in a rigid state.
Description
Technical field
The utility model relates to technical field of hydraulic oil cylinder, especially relates to the hydraulic oil cylinder cushion.
Background technique
At some large-scale engineering machineries, for example the Scraper bowl of active scraper relies on the hydraulic jack lifting, the Scraper bowl of loaded material is when operation, by the telescopic location of control hydraulic jack, the position of fixed hydraulic cylinder piston rod makes Scraper bowl maintain a certain station.And in movement process, owing to be subject to the out-of-flatness on ground, acceleration and deceleration action and the vibration that derives from equipment itself, equipment can produce vibrations, thereby the hydraulic jack that is in rigid state is produced larger impact force, to improving operator's travelling comfort, the maintenance cycle and the maintenance cost that reduce equipment bring adverse influence.
The model utility content
In order to overcome the defective of prior art, the utility model provides a kind of hydraulic oil cylinder cushion, when making hydraulic jack maintain a certain station, produces a damping, buffering effect, thereby operator's travelling comfort in the raising running, the working life of extension device.
In order to solve the problems of the technologies described above, the hydrocylinder buffering device that the utility model provides has hydraulic jack; Contiguous block; Solenoid valve; Accumulator, the first end of described contiguous block is connected with described hydraulic jack, and the second end is connected with described accumulator, and contiguous block has the rodless cavity of connection hydraulic jack and the through hole of accumulator, and described solenoid valve is used for realizing cut-out or the connection of described through hole.When the through hole of contiguous block was connected, hydraulic jack had buffer function, and when through hole was cut off, hydraulic jack was in rigid state.
Further, the hydraulic jack of hydrocylinder buffering device also is built-in with position transducer, described position transducer comprises inductor, induced magnet and induction rod, described inductor is fixed on the cylinder barrel bottom of hydraulic jack, described induced magnet is fixed on the piston of hydraulic jack, and can slide along described induction rod, produce induction current; Described position transducer and controller ECU electrically connect, the electromagnetic coil of controller ECU and described solenoid valve electrically connects, the induction current size that controller ECU produces according to position transducer, the electromagnetic coil of control solenoid valve gets electric or dead electricity, thereby controls being communicated with or cut-out of hydraulic circuit through hole of described hydraulic jack and accumulator.When the piston rod of hydraulic jack moved, the induced magnet that drives position transducer moved, and induced magnet is different in the position of induction rod, and the electric current that inductor produces is different, and induced magnet is linear with the size of current of generation from the distance of inductor.When the electric current that passes to controller ECU reaches setting value, controller ECU sends electrical signal, and it is electric that the electromagnetic coil of solenoid valve is got, and solenoid valve is opened, the through hole of contiguous block is connected, hydraulic jack has buffer function, and when the electric current that passes to controller ECU during less than setting value, controller ECU does not send electrical signal to solenoid valve, the electromagnetic coil dead electricity of solenoid valve, closed electromagnetic valve, the through hole of contiguous block is cut off, and hydraulic jack is in rigid state.This improvement project can make the unlatching of hydrocylinder buffering device be in auto state.
Further, the contiguous block of hydrocylinder buffering device or accumulator also have relief valve, and described relief valve is communicated with described through hole or is communicated with described accumulator, and connectivity points is between solenoid valve and accumulator when being communicated with described through hole.Relief valve plays level pressure overflow effect in hydrocylinder buffering device, have voltage stabilizing, the effect of system unloaded and safety protection.
Further, the contiguous block of hydrocylinder buffering device or accumulator also have unloading valve, and described unloading valve is communicated with described through hole or is communicated with described accumulator, and connectivity points is between solenoid valve and accumulator when being communicated with described through hole.When making things convenient for system overhaul, unloading valve gets rid of the hydraulic oil in the accumulator.
As preferred version and further improvement, the rodless cavity of the connection hydraulic jack of the contiguous block of hydrocylinder buffering device and the through hole of accumulator have one U-shaped section, have at least the first connection mouth towards the contiguous block outside in described U-shaped section bottom.Be provided with the convenient solenoid valve of installing of the first connection mouth, make the volume of equipment less, level of integration is higher.Further, the solenoid valve of hydrocylinder buffering device is electromagnetic cartridge valve, is installed on the first connection mouth of described contiguous block.
On above-mentioned improvement project, further, U-shaped section bottom of the contiguous block through hole of hydrocylinder buffering device also has the second connection mouth, the 3rd connection mouth towards the contiguous block outside.The second connection mouth, the 3rd connection mouth and the first connection mouth are communicated with through hole between the accumulator.
Further, the relief valve of described hydrocylinder buffering device is communicated with the second connection mouth or the 3rd connection mouth of described contiguous block.
Further, the unloading valve of described hydrocylinder buffering device is communicated with the 3rd connection mouth or second connection mouth of described contiguous block.When installing described relief valve and unloading valve, the second connection mouth or the 3rd connection mouth need mutual noninterference.
Further, the through hole of the rodless cavity of the connection hydraulic jack of the contiguous block of described hydrocylinder buffering device and accumulator has the 4th connection mouth that leads to contiguous block first end outside.But the 4th connection mouth mounted valve or plug when maintenance, conveniently emitted intrasystem hydraulic oil.
Further, the unloading valve of described hydrocylinder buffering device is Manual relief valve.
Above-mentioned improvement project can be implemented alone or in combination in the situation of not conflicting.
The beneficial effect that the utility model brings: the technological scheme that the utility model provides, adopt contiguous block that hydraulic jack, solenoid valve, accumulator are linked together, it is little, easy for installation to have a volume, safeguards simple advantage.Solenoid valve connection or cut-out oil cylinder are connected with accumulator; Can make hydraulic jack be in rigidity and have a pooling feature two states, accumulator can impact-absorbing, plays buffer function, and can prevent the oil cylinder hole.Be at hydraulic jack under the operating mode of buffer status, have the damping, buffering effect, thereby improve the travelling comfort of operator in the running, the working life of extension device.
Description of drawings
Accompanying drawing is used to provide further understanding of the present utility model, consists of the application's a part, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is embodiment's hydrocylinder buffering device structural representation;
Fig. 2 is embodiment's hydrocylinder buffering device hydraulic principle figure;
Fig. 3 is embodiment's connecting block structure schematic representation.
Embodiment
Hydrocylinder buffering device as shown in Figure 1 comprises hydraulic jack 1; Contiguous block 7; Solenoid valve 3; Accumulator 6, the first end of described contiguous block 7 is connected with described hydraulic jack 1, and the second end is connected with described accumulator 6, and contiguous block 7 has the rodless cavity of connection hydraulic jack 1 and the through hole 70 of accumulator 6.The rodless cavity of the connection hydraulic jack 1 of contiguous block 7 and the through hole 70 of accumulator 6 have the 4th connection mouth 71 that leads to contiguous block 7 first end outsides; Through hole 70 has one U-shaped section, has the first connection mouth 72 towards contiguous block 7 outsides in the first corner, described U-shaped section bottom, has the second connection mouth 73 and the 3rd connection mouth 74 towards contiguous block 7 outsides in the second corner, U-shaped section bottom.Solenoid valve 3 is electromagnetic cartridge valve, is installed on the first connection mouth 72 of contiguous block 7; The relief valve 5 of accumulator 6 is communicated with the second connection mouth 73 or the 3rd connection mouth 74 of contiguous block 7, the unloading valve 4 of accumulator 6 is communicated with the 3rd connection mouth 74 or second connection mouth 73 of contiguous block 7, but the connection mouth of relief valve 5 and unloading valve 4 can not produce conflict when mounted.
The hydraulic jack 1 of hydrocylinder buffering device also is built-in with position transducer 2, position transducer 2 comprises inductor, induced magnet and induction rod, inductor is fixed on the cylinder barrel bottom of hydraulic jack 1, induced magnet is fixed on the piston of hydraulic jack 1, and can slide along described induction rod, induced magnet is different in the position of induction rod, and the electric current that inductor produces is different, and induced magnet is linear with the size of current of generation from the distance of inductor.Position transducer 2 electrically connects with controller ECU, the electromagnetic coil of controller ECU and solenoid valve 3 electrically connects, the induction current size that controller ECU produces according to position transducer 2, the electromagnetic coil of control solenoid valve 3 gets electric or dead electricity, thereby controls being communicated with or cut-out of hydraulic circuit through hole 70 of described hydraulic jack 1 and accumulator 6.When the piston rod of hydraulic jack 1 moved, the induced magnet that drives position transducer 2 moved, and induced magnet is different in the position of induction rod, and the electric current that inductor produces is different, and induced magnet is linear with the size of current of generation from the distance of inductor.When the electric current that passes to controller ECU reaches setting value, controller ECU sends electrical signal, and it is electric that the electromagnetic coil of solenoid valve 3 is got, and solenoid valve is opened, the through hole 70 of contiguous block 7 is connected, hydraulic jack 1 has buffer function, and when the electric current that passes to controller ECU during less than setting value, controller ECU does not send electrical signal to solenoid valve 3, the electromagnetic coil dead electricity of solenoid valve 3, closed electromagnetic valve, the through hole 70 of contiguous block 7 is cut off, and hydraulic jack 1 is in rigid state.Thereby make the unlatching of hydrocylinder buffering device be in auto state.
Obviously, the utility model is not limited to above preferred implementation, also can be in the spirit of the utility model claim and specification restriction, carry out conversion and the improvement of various ways, can solve same technical problem, and obtain the technique effect of expection, so do not repeat.Those of ordinary skill in the art can be from the disclosed content of the utility model directly or all schemes of associating, as long as within the spirit that claim limits, also belong to protection domain of the present utility model.
Claims (10)
1. a hydrocylinder buffering device is characterized in that: have hydraulic jack (1); Contiguous block (7); Solenoid valve (3); Accumulator (6), the first end of described contiguous block (7) is connected with described hydraulic jack (1), the second end is connected with described accumulator (6), contiguous block (7) has the rodless cavity of connection hydraulic jack and the through hole (70) of accumulator, and described solenoid valve is used for realizing cut-out or the connection of described through hole (70).
2. hydrocylinder buffering device according to claim 1, it is characterized in that: described hydraulic jack also is built-in with position transducer (2), described position transducer (2) comprises inductor, induced magnet and induction rod, described inductor is fixed on the cylinder barrel bottom of oil cylinder (1), described induced magnet is fixed on the piston of oil cylinder (1), and can slide along described induction rod, produce induction current; Described position transducer (2) electrically connects with controller ECU, the electromagnetic coil of controller ECU and described solenoid valve (3) electrically connects, the induction current size that controller ECU produces according to position transducer, the electromagnetic coil of control solenoid valve (3) gets electric or dead electricity, thereby controls being communicated with or cut-out of hydraulic circuit of described hydraulic jack (1) and accumulator (6).
3. hydrocylinder buffering device according to claim 1, it is characterized in that: described contiguous block (7) or accumulator (6) also have relief valve (5), described relief valve (5) is communicated with described through hole (70) or is communicated with described accumulator (6), when with described through hole (70) when being communicated with connectivity points be positioned between solenoid valve (3) and the accumulator.
4. hydrocylinder buffering device according to claim 1, it is characterized in that: described contiguous block (7) or accumulator (6) also have unloading valve (4), described unloading valve (4) is communicated with described through hole (70) or is communicated with described accumulator (6), when with described through hole (70) when being communicated with connectivity points be positioned between solenoid valve (3) and the accumulator.
5. hydrocylinder buffering device according to claim 1, it is characterized in that: described contiguous block (7) is communicated with the rodless cavity of hydraulic jack and the through hole (70) of accumulator has one U-shaped section, has at least in described U-shaped section bottom towards outside the first connection mouth (72) of contiguous block (7).
6. hydrocylinder buffering device according to claim 5, it is characterized in that: described solenoid valve is electromagnetic cartridge valve, is installed on first connection mouth (72) of described contiguous block (7).
7. hydrocylinder buffering device according to claim 5 is characterized in that: also have in described U-shaped section bottom towards contiguous block (7) outside the second connection mouth (73), the 3rd connection mouth (74).
8. hydrocylinder buffering device according to claim 3, it is characterized in that: described relief valve (5) is communicated with the second connection mouth (73) or the 3rd connection mouth (74) of described contiguous block (7).
9. hydrocylinder buffering device according to claim 4, it is characterized in that: described unloading valve (4) is communicated with the 3rd connection mouth (74) or second connection mouth (73) of described contiguous block (7).
10. hydrocylinder buffering device according to claim 1 is characterized in that: described contiguous block (7) is communicated with the rodless cavity of hydraulic jack and the through hole (70) of accumulator has towards the 4th connection mouth (71) of contiguous block (7) first end outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220390569 CN202833424U (en) | 2012-08-08 | 2012-08-08 | Buffer device of hydrocylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220390569 CN202833424U (en) | 2012-08-08 | 2012-08-08 | Buffer device of hydrocylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202833424U true CN202833424U (en) | 2013-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220390569 Expired - Lifetime CN202833424U (en) | 2012-08-08 | 2012-08-08 | Buffer device of hydrocylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202833424U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758812A (en) * | 2012-08-08 | 2012-10-31 | 湖南瑞龙重工科技有限公司 | Buffer device of hydraulic oil cylinder |
| CN103407916A (en) * | 2013-09-02 | 2013-11-27 | 徐州重型机械有限公司 | Luffing oil cylinder buffer device and crane |
| CN103994125A (en) * | 2014-05-20 | 2014-08-20 | 长沙达豪机械设备有限公司 | Adjustable bi-directional buffering oil cylinder |
-
2012
- 2012-08-08 CN CN 201220390569 patent/CN202833424U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758812A (en) * | 2012-08-08 | 2012-10-31 | 湖南瑞龙重工科技有限公司 | Buffer device of hydraulic oil cylinder |
| CN103407916A (en) * | 2013-09-02 | 2013-11-27 | 徐州重型机械有限公司 | Luffing oil cylinder buffer device and crane |
| CN103994125A (en) * | 2014-05-20 | 2014-08-20 | 长沙达豪机械设备有限公司 | Adjustable bi-directional buffering oil cylinder |
| CN103994125B (en) * | 2014-05-20 | 2016-01-13 | 长沙达豪机械设备有限公司 | Adjustable Bidirectional cushion cylinder |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130327 |
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| CX01 | Expiry of patent term |