CN2646540Y - Plunger-type multi-point oil lubricating pump - Google Patents
Plunger-type multi-point oil lubricating pump Download PDFInfo
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- CN2646540Y CN2646540Y CN 03210596 CN03210596U CN2646540Y CN 2646540 Y CN2646540 Y CN 2646540Y CN 03210596 CN03210596 CN 03210596 CN 03210596 U CN03210596 U CN 03210596U CN 2646540 Y CN2646540 Y CN 2646540Y
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- oil
- plunger
- valve plate
- pump
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Abstract
The utility model relates to a plunger type multi-point oil lubricant pump with a plurality of independent oil outlet points. The utility model includes a reduction drive 9, an eccentric shaft 8, a following tray 7, a displacement ram 2, a pump body 5, a discharging slide valve 3 and an engine body 6. A plurality of auxiliary pumps 17 are radially positioned on the engine body. An independent valve plate 1 is arranged on each auxiliary pump. A safety valve 14, an oil discharging no return valve 18 and an oil discharging connector are configured as an integration on the valve plate 1. The internal oil conduit of the valve plate 1 communicates with the discharging port of valve plate 1 and the scavenging port of the engine body 6 respectively. When over loading, the safety valve is opened, the scavenge oil overflows back to the engine body from internal, an indication rod moves and stretches out under the force of scavenge oil pressure. The above movement is able to be judged by eyes, and is also able to be externally connected with a microswitch, to send electric signals. The utility model is also able to design the safety valve as a pressure regulating valve so that users are able to regulate freely under the rated working pressure.
Description
Technical field
The utility model relates to a kind of a plurality of plunger type multi-point grease lubrication pumps that independently go out oil drop that have, and belongs to lubrication technical field.
Background technique
At present, known plunger type multi-point grease lubrication pump is listed Chinese mechanical industry standard JB/T8651.2-1997 in, the pump series products of JB/T8810.3-1998 and Chinese heavy-duty machine industry standard JB/ZQ4480-1997, its structural principle substantially roughly the same, comprise speed reducer, eccentric shaft, follower disk, plunger, the pump housing, the oil extraction guiding valve, body, it drives eccentric shaft or camshaft rotation by the motor via reducer structure, drive radially or each axial arranged sub-pump plunger reciprocating, finish oil suction and oil extraction process, grease is pumped the hydraulic fluid port pressure injection from each son go into each lubricating point of equipment.But there is following shortcoming in the prior art:
1, safety valve or pressure regulator valve are established in each equal end of sub-pump.In case stop up when certain goes out the oil drop oil pipe, not only the equipment oil starvation is lubricated, and may causes whole lubricant pump overload and damage.
2, set one-way valve is hard sealed type cone valve or ball valve before each oil outlet, and leakage rate is difficult to control, causes that respectively to go out oil drop charge oil pressure fluctuation bigger.
3, in the sliding valve style displacement configuration, the oil drain passage at guiding valve middle part forms the harmful clearance volume in the oil extraction process, and the residue grease volume that promptly can't discharge can account for 10～20% of its swept volume in little displacement pump.When suction is mixed with the grease of air, forms the high pressure air pocket and accumulate in this oil drain passage, promptly in the clearance volume; And this air pocket expands in oil-absorbing process, then reduces degree of vacuum in the cavity volume, causes the oil suction difficulty.
4, the fuel-flow control that respectively goes out oil drop adopts the change plunger stroke or the mobile pump housing to change the oil suction volume, and complex structure is operated inconvenience, and must just can be carried out under outage state.
5, detachability is poor.When fault appears in certain fuel-displaced point, split out sub-pump and clean or grind plunger again and pay, then lubricant pump integral body must be disassembled just and can be split out sub-pump, maintenance is inconvenience quite.
Summary of the invention
The utility model purpose is to provide a kind of novel plunger type multi-point grease lubrication pump, to overcome the defective that prior art exists.
For achieving the above object, the technological scheme that the utility model adopted is as follows: respectively going out all to install an independent valve plate on the sub-pump of oil drop additional, integrated configuration safety valve, fuel-displaced one-way valve and oil out port on valve plate, inner oil duct is communicated with pump housing oil outlet and body return opening respectively.When overload, safety valve is opened, and oil return overflows back body internally, and utilizes return pressure that indicating arm is moved and stretch out, and can visually judge, also can external sensitive switch, and output electric signal.The utility model also can become pressure regulator valve with relief valve design, sets up arbitrarily under rated working pressure for the user.
The utlity model has safe and reliable to operation, pressure is steady, fuel-flow control is convenient, and the advantage with good detachability.
Below in conjunction with drawings and Examples technology contents of the present utility model is described further.
Description of drawings
Fig. 1 is the utility model plunger type multi-point grease lubrication pump embodiment's a structural representation.
Fig. 2 is a kind of embodiment's of Fig. 1 plunger type multi-point grease lubrication pump valve plate an A-A sectional view.
Fig. 3 is the another kind of embodiment's of Fig. 1 plunger type multi-point grease lubrication pump valve plate an A-A sectional view.
Among the figure, 1, valve plate, 2, plunger, 3, the oil extraction guiding valve, 4, Adjusting bolt Adjusting screw, 5, the pump housing, 6, body, 7, follower disk, 8 eccentric shafts, 9, speed reducer, 10, fuel tank, 11, the spool of fuel-displaced one-way valve, 12, rubber seal, 13, the venting spiral shell is ordered, and 14, safety valve, 15, indicating arm, 16, pressure regulator valve, 17, sub-pump, fuel-displaced one-way valve 18.
Embodiment
As shown in Figure 1 and Figure 2, present embodiment plunger type multi-point grease lubrication pump comprises speed reducer 9, eccentric shaft 8, follower disk 7, plunger 2, the pump housing 5, oil extraction guiding valve 3, body 6, on body, be radially distributed with a plurality of sub-pumps 17, on each sub-pump 17 independently valve plate 1 is housed all, integrated configuration safety valve 14, fuel-displaced one-way valve 18 and oil out port on the valve plate 1, the inside oil duct of valve plate 1 are communicated with return opening on the pump housing 5 oil outlets and the body 6 respectively.Valve plate 1 right side is fuel-displaced one-way valve 18, and the spool 11 of fuel-displaced one-way valve 18 is a taper, with the valve seat facing-up, and rubber seal 12 is set on taper.Follower disk 7 is housed on the axle journal of eccentric shaft 8, and this dish can rotation on eccentric journal, again can be around the revolution of eccentric shaft center line, and follower disk 7 peripheries have L type groove, and plunger 2 boattails are hooked in the L type groove.Follower disk adopts semi-open type L type structure, then can utilize the space of pump housing mounting hole on body, with the oblique disengagement of plunger tail cone or hook the L type groove of follower disk 7, the overall process that can conveniently finish the dismounting of pump housing parts from the outside or pack into is improved detachability.Present embodiment adopts bypass type oil extraction sliding valve structure, the oil drainage hole at cancellation oil extraction guiding valve 3 middle parts, and the pump housing 5 is provided with the oil extraction inclined channel at plunger 2 bottom dead-centre places, makes that clearance volume can't form in the oil extraction process, to reach no clearance oil extraction, effectively improves oil absorption.
Motor via reducer 9 drives eccentric shaft 8 rotations, and the L type groove of follower disk hooks some plungers 2 boattails of radially evenly arranging along body 6, makes plunger reciprocating in the pump housing 5.Corresponding plunger inner dead centre position has oil-sucking hole on the pump housing, and when motion of plunger outward dead point and sealing oil-sucking hole, the enclosed volume that form this moment is effective oil suction volume.Continue motion with plunger, in the chamber in grease by compression, pressure raises and promotion oil extraction guiding valve 3, opens the outside oil extraction of oil extraction inclined channel on the pump housing, plunger motion to the bottom dead-centre contacts with guiding valve, then grease in the chamber all can be discharged, and finishes no clearance oil extraction.Also at the axial position configuration adjustment swivel nut 4 of oil extraction guiding valve 3, fuel-flow control swivel nut (4) floats with oil extraction guiding valve (3) and connects present embodiment.By Adjusting bolt Adjusting screw 4, adjust the oil extraction guiding valve and stretch into the pump housing degree of depth, adjust the oil mass purpose to change effective oil suction volume size, to reach.Its adjustment process is for independently to carry out, and also nonintervention plunger motion is so can easily finish fuel-flow control at any time; Also configuration venting spiral shell orders 13 on valve plate, the usefulness of air in the blowdown pump when starting first in order to lubricant pump.
Among a kind of embodiment of valve plate as shown in Figure 2, the left side of valve plate 1 is a safety valve 14, is provided with indicating arm 15 in the safety valve 14, and indicating arm places drainback passage and keeps certain interval with periphery.When going out oil pressure when overload, spool is opened, and the grease overflow enters drainback passage, by the indicating arm peripheral clearance in inner spill port returns body and fuel tank 10.Grease can produce the chock pressure difference effect during by its Clearance Flow, makes on the indicating arm and moves, and stretch out the end, then can outside visualization differentiate, and also can sensitive switch be set in the end, shown in double dot dash line among Fig. 2, and output electric signal.Also configuration venting spiral shell orders 13 on valve plate, the usefulness of air in the blowdown pump when starting first in order to lubricant pump.
Among the another kind of valve plate embodiment as shown in Figure 3, the valve plate left side is a pressure regulator valve 16, can be set up arbitrarily under rated pressure by the user.The A hole is an oil outlet tube seated connection mouth among Fig. 2,3.
Claims (7)
1, a kind of plunger type multi-point grease lubrication pump, comprise speed reducer (9), eccentric shaft (8), follower disk (7), plunger (2), the pump housing (5), oil extraction guiding valve (3), body (6), be radially distributed with a plurality of sub-pumps (17) on the body, it is characterized in that all being equipped with on each sub-pump independently valve plate (1), valve plate (1) is gone up integrated configuration safety valve (14), fuel-displaced one-way valve (18) and oil out port, and the inside oil duct of valve plate (1) is gone up return opening with the pump housing (5) oil outlet and body (6) respectively and is communicated with.
2, a kind of plunger type multi-point grease lubrication pump, comprise speed reducer (9), eccentric shaft (8), follower disk (7), plunger (2), the pump housing (5), oil extraction profit valve (3), body (6), be radially distributed with a plurality of sub-pumps (17) on the body, it is characterized in that all being equipped with on each sub-pump independently valve plate (1), valve plate (1) is gone up configuration pressure regulator valve (16), fuel-displaced one-way valve (18) and oil out port, and the inside oil duct of valve plate (1) is gone up return opening with the pump housing (5) oil outlet and body (6) respectively and is communicated with.
3, plunger type multi-point grease lubrication pump according to claim 1 and 2 is characterized in that the spool (11) of fuel-displaced one-way valve is a taper, with the valve seat facing-up, and rubber seal (12) is set on taper.
4, plunger type multi-point grease lubrication pump according to claim 1 and 2 is characterized in that follower disk (7) periphery has L type groove, and plunger (2) boattail is hooked in the L type groove.
5, plunger type multi-point grease lubrication pump according to claim 1 is characterized in that being provided with in the safety valve (14) indicating arm (15), and indicating arm places drainback passage and keeps certain interval with periphery.
6, plunger type multi-point grease lubrication pump according to claim 1 and 2 is characterized in that also the axial position configuration fuel-flow control swivel nut (4) at oil extraction guiding valve plate (3), and fuel-flow control swivel nut (4) connects with oil extraction guiding valve (3) is unsteady.
7, plunger type multi-point grease lubrication pump according to claim 1 and 2 is characterized in that the pump housing (5) is provided with the oil extraction inclined channel at plunger (2) bottom dead-centre place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03210596 CN2646540Y (en) | 2003-09-10 | 2003-09-10 | Plunger-type multi-point oil lubricating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03210596 CN2646540Y (en) | 2003-09-10 | 2003-09-10 | Plunger-type multi-point oil lubricating pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2646540Y true CN2646540Y (en) | 2004-10-06 |
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ID=34289431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03210596 Expired - Fee Related CN2646540Y (en) | 2003-09-10 | 2003-09-10 | Plunger-type multi-point oil lubricating pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2646540Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196027A (en) * | 2013-04-22 | 2013-07-10 | 新泰市佳兴液压机械有限公司 | Valve body assembly for ultra-high voltage electric grease-filling machine |
| CN104500112A (en) * | 2014-12-16 | 2015-04-08 | 中煤北京煤矿机械有限责任公司 | Multifunctional integrated pillar valve plate |
| CN105508107A (en) * | 2016-01-14 | 2016-04-20 | 辽宁新风企业集团有限公司 | Integrated high-pressure oil pump assembly for high-pressure common-rail fuel injection system of diesel engine |
| CN112253977A (en) * | 2020-11-27 | 2021-01-22 | 青岛盘古智能制造股份有限公司 | Lubricant supplying device of high-capacity single-line centralized lubricating system |
-
2003
- 2003-09-10 CN CN 03210596 patent/CN2646540Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196027A (en) * | 2013-04-22 | 2013-07-10 | 新泰市佳兴液压机械有限公司 | Valve body assembly for ultra-high voltage electric grease-filling machine |
| CN104500112A (en) * | 2014-12-16 | 2015-04-08 | 中煤北京煤矿机械有限责任公司 | Multifunctional integrated pillar valve plate |
| CN105508107A (en) * | 2016-01-14 | 2016-04-20 | 辽宁新风企业集团有限公司 | Integrated high-pressure oil pump assembly for high-pressure common-rail fuel injection system of diesel engine |
| CN112253977A (en) * | 2020-11-27 | 2021-01-22 | 青岛盘古智能制造股份有限公司 | Lubricant supplying device of high-capacity single-line centralized lubricating system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041006 Termination date: 20120910 |