CN2616736Y - Single acting lifting device - Google Patents
Single acting lifting device Download PDFInfo
- Publication number
- CN2616736Y CN2616736Y CN 03215807 CN03215807U CN2616736Y CN 2616736 Y CN2616736 Y CN 2616736Y CN 03215807 CN03215807 CN 03215807 CN 03215807 U CN03215807 U CN 03215807U CN 2616736 Y CN2616736 Y CN 2616736Y
- Authority
- CN
- China
- Prior art keywords
- oil
- oil pump
- casing
- spool
- communicated
- 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 - Fee Related
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- Fluid-Pressure Circuits (AREA)
Abstract
The utility model belongs to a fluid distribution installation area of technology, which is characterized in controlling of the servo motoring. The monofunctional elevator comprises an oil pump which is connected with a driving rotor and a driveshaft in the oil pump gearbox, the oil pump is provided with a divider which is connected with the oil pump and the flown pipeline. The monofunctional elevator has no phenomenon of oil stopping up and splitting suddenly and violently of the oil passage. At the same time, the control lever can be arranged directly nearby the divider, making the control quite convenient.
Description
Technical field
The utility model belongs to the technical field with the fluid distributing apparatus that is controlled to be feature that is applicable to servomotor.
Technical background
Be used in the lift device that is used for the lifting apparatus on the vehicle now, general all is that distributor separates arrangement with oil pump, and particularly agri-vehicle is all the more so, and this gives the installation of control gear and use and all brings some inconvenience.
The purpose of this utility model provides that a kind of distributor and oil pump link together and controls single-acting lift device easily.
Technological scheme
This single-acting lift device comprises the oil pump that the interior driving shaft of power rotor and oil pump transmission case is connected, and the distributor that is connected and is communicated with oil pump outlet line with oil pump is installed on oil pump.
Because distributor and oil pump are fitted together, saved oil pump and be connected with oil circuit between distributor, do not exist the obstruction of oil circuit and oil circuit to split phenomenon cruelly, the while controlling rod can be directly installed on the distributor limit, and it is quite convenient to control.
Description of drawings
Accompanying drawing shows embodiment of the present utility model, wherein:
Figure 1 shows that the partial sectional view of facing of single-acting lift device;
Figure 2 shows that and overlook partial sectional view;
Figure 3 shows that along the sectional view of A--A line shown in Figure 1;
Figure 4 shows that the amplification view of distributor when raise-position is put;
Figure 5 shows that the amplification view of distributor when falling the position;
Single-acting lift device as shown in the figure, comprise oil pump transmission case 1, be contained in the driving shaft 2 in the oil pump transmission case 1, the oil pump 4 that driving shaft 2 in power rotor 3 and the oil pump transmission case 1 is connected, the housing of oil pump 4 is connected on the oil pump transmission case by bolt, and the distributor 5 that is connected and is communicated with oil pump 4 oil outlet tubes with oil pump 4 is installed on oil pump 4.Distributor 5 comprises casing 14, be located at the high pressure oil inlet pipe 6 that is communicated with oil pump 4 oil outlet tubes on casing 14 walls, be located at the oil suction chamber 12 that is communicated with high pressure oil inlet pipe 6 on casing 5 inwalls, activity is inserted in the spool 7 in the casing 5, be located at the recessed road 8 of oil-feed on the spool 7, be located at the recessed road 9 of oil return on the spool 7, be located at the back oil road 10 on casing 5 walls, be located at the high-voltage oil cavity 11 on casing 5 inwalls, the one-way valve 13 on the connecting tube that is contained in 10 of oil suction chamber 12 and back oil roads on casing 5 walls.When carrying out rising operation, spool is pushed in the distributor casing, then high pressure oil inlet pipe and oil suction chamber are communicated with high-voltage oil cavity by the recessed road of the oil-feed on the spool, carry out rising operation, and when the high-voltage oil cavity internal pressure was too high, then one-way valve opens reduced pressure by back oil road.When falling operation, spool to be pulled out, high-voltage oil cavity is communicated with return tube by the recessed road of the oil return on the spool, and high-voltage oil cavity also is communicated with return tube.
Claims (2)
1, a kind of single-acting lift device comprises the oil pump (4) that the interior driving shaft (2) of power rotor (3) and oil pump transmission case (1) is connected, and it is characterized in that being equipped with on oil pump (4) distributor (5) that is connected and is communicated with oil pump (4) oil outlet tube with oil pump (4).
2, single-acting lift device according to claim 1, it is characterized in that distributor comprises casing (5), be located at the high pressure oil inlet pipe (6) that is communicated with oil pump (4) oil outlet tube on casing (5) wall, be located at the oil suction chamber (12) that is communicated with high pressure oil inlet pipe (6) on casing (5) inwall, activity is inserted in the spool (7) in the casing (5), be located at the recessed road of oil-feed (8) on the spool (7), be located at the recessed road of oil return (9) on the spool (7), be located at the back oil road (10) on casing (5) wall, be located at the high-voltage oil cavity (11) on casing (5) inwall, the one-way valve (13) on the connecting tube that is contained on casing (5) wall between oil suction chamber (12) and back oil road (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03215807 CN2616736Y (en) | 2003-03-16 | 2003-03-16 | Single acting lifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03215807 CN2616736Y (en) | 2003-03-16 | 2003-03-16 | Single acting lifting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2616736Y true CN2616736Y (en) | 2004-05-19 |
Family
ID=34242775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03215807 Expired - Fee Related CN2616736Y (en) | 2003-03-16 | 2003-03-16 | Single acting lifting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2616736Y (en) |
-
2003
- 2003-03-16 CN CN 03215807 patent/CN2616736Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |