CN204300006U - Multiple spot constant flow synchronously elects hydraulic transmission - Google Patents
Multiple spot constant flow synchronously elects hydraulic transmission Download PDFInfo
- Publication number
- CN204300006U CN204300006U CN201420699716.0U CN201420699716U CN204300006U CN 204300006 U CN204300006 U CN 204300006U CN 201420699716 U CN201420699716 U CN 201420699716U CN 204300006 U CN204300006 U CN 204300006U
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- oil
- hydraulic transmission
- large tank
- valve
- oil pump
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Abstract
The utility model is that multiple spot constant flow synchronously elects hydraulic transmission.It includes more than 2 or 2 single-points in parallel and elects hydraulic transmission, described single-point is elected hydraulic transmission and is comprised the large tank supplying to elect weight, the bottom of large tank is provided with the oil return pipe be connected with fuel tank, oil return pipe is provided with choke valve, large tank is connected with plunger oil pump by the in line check valve of oil inlet pipe through entering large tank, oil inlet pipe between large tank and in line check valve is provided with the overflow valve of pressure limiting, the oil sucting one-way valve of bottom through entering plunger oil pump of plunger oil pump is connected with fuel tank; And the plunger oil pump that each single-point is elected in hydraulic transmission is driven by the same lever handle being fixed on identical position of the fulcrum.Each large tank in use can be made whether identical regardless of their load, and speed that can be identical and stroke realize synchronous election action.
Description
Technical field
The utility model relates to a kind of hydraulic transmission, and particularly a kind of multiple spot constant flow synchronously elects hydraulic transmission.
Background technology
In hydraulic drive, much equipment or frock often need with a power simultaneously to multiple oil cylinder fuel feeding.In common Hydraulic Power Transmission System, because the load of each oil cylinder is different, the first action that load is little often, then thirdly, such operating mode generally can not meet the requirement of use.And require at same oil cylinder diameter, whether the load regardless of them is identical, all require synchronously to stretch out, this usually will add distributor in Hydraulic Power Transmission System, have patent CN200920123403.X hydraulic quantitative distributor, this dispensing arrangement is complicated, and cost is high, and can only rationed to two oil cylinders, be therefore in use subject to certain limitation.In addition, when opening oil return valve in using, under the gravity on large tank or load effect, the oil in large tank is made to return fuel tank rapidly by spill port (oil return pipe).And need the weight of jack-up is slowly declined in many occasions or regulate the speed declined, this can often use in the hydraulic means of ordinary jack or similar jack, and common similar jack just cannot reach.
Utility model content
The purpose of this utility model is that a kind of structure is simple, low cost of manufacture providing, to multiple oil cylinder, good reliability, can accomplish that the multiple spot constant flow of the synchronous fuel feeding of constant flow synchronously elects hydraulic transmission simultaneously.
In order to solve the problem, the utility model is achieved through the following technical solutions: it is characterized in that it includes more than 2 or 2 single-points in parallel and elects hydraulic transmission, described single-point is elected hydraulic transmission and is comprised the large tank supplying to elect weight, the bottom of large tank is provided with the oil return pipe be connected with fuel tank, oil return pipe is provided with choke valve, large tank is connected with plunger oil pump by the in line check valve of oil inlet pipe through entering large tank, oil inlet pipe between large tank and in line check valve is provided with the overflow valve of pressure limiting, the oil sucting one-way valve of bottom through entering plunger oil pump of plunger oil pump is connected with fuel tank, and the plunger oil pump that each single-point is elected in hydraulic transmission is driven by the same lever handle being fixed on identical position of the fulcrum.
Described choke valve, it is the switch controlling oil return flow and speed, be included on valve body and be shaped with threaded counterbore, the center of counterbore base is shaped with the oil leak hole communicated with large tank, at the spill port of counterbore base, steel ball is installed, thread bush is screwed in the counterbore of steel ball rear end, switch knob is screwed in after thread bush, the front end of switch knob is that cylindrical bar to be inserted in the endoporus of thread bush and to withstand steel ball, cylindrical bar cylindrical and thread bush endoporus form the draining gap of ring-type, the side of thread bush rear end is shaped with the spill port communicated with fuel tank, made the front end of switch knob push down steel ball or decontrol steel ball to realize opening or closing oil leak hole by the screw-in or exit of switch knob.
Described draining gap is 0.25-0.35 millimeter.
The end face of described thread bush is shaped with the in-line or the cross groove that facilitate bottle opener to screw in counterbore.
Multiple spot constant flow according to such scheme manufacture synchronously elects hydraulic transmission, in use by pushing lever handle, band is automatically connected in the multiple plunger oil pump motions on lever handle, and realize synchronous to each large tank fuel feeding, because each large tank, plunger oil pump diameter are distinguished identical, when the pump oil stroke of each plunger oil pump is identical, the election stroke of each large tank is also identical.Therefore, each large tank can be made whether identical regardless of their load, and speed that can be identical and stroke realize synchronous election action.
For choke valve, the draining gap of ring-type is formed in the front end of switch knob, its flow-control by switch knob screw-in or withdraw control, when draining, when rotatable handle retreats, first spill port thrown off by steel ball, and the hydraulic oil elder generation of oil cylinder again through ring-type draining gap, then enters spill port from switch knob thread segment front end through oil leak hole.Because the draining gap in oil inlet and oil return hole is regulated by screw thread, therefore, the adjustment of its aperture can be accomplished very accurate.And ring-type draining gap, gap is little, length length can stop impurity in hydraulic oil better.Once have impurity to block in the draining gap of ring-type, along with the rotation of switch knob during adjustment and the rotation of cylindrical bar, can the tamper in blocking position be implemented extruding, be stirred, eliminate blocking, therefore it has the adjustment of draining speed accurately, susceptible to plugging advantage is not allowed in draining gap, can often keep normal duty.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that 2 single-point constant flows in parallel elect hydraulic transmission;
Fig. 2 is the side direction structural representation representing lever handle in Fig. 1;
Fig. 3 is the right front side isometric view of integration module that 2 single-point constant flows elect hydraulic transmission;
Fig. 4 is the left front side isometric view of integration module that 2 single-point constant flows elect hydraulic transmission;
Fig. 5 is the explosive view installing 2 oil sucting one-way valves, 2 overflow valves and 2 plunger oil pump parts in the A-A section of Fig. 3;
Fig. 6 is the D-D profile in Fig. 4;
Fig. 7 is the installation diagram of Fig. 5;
Fig. 8 is the explosive view of erection column plug oil pump parts in C-C section in Figure 5;
Fig. 9 is the explosive view installing 2 choke valve parts in the B-B section of Fig. 3;
Figure 10 is the assembling enlarged drawing of Fig. 9;
Figure 11 is the enlarged drawing of thread bush;
Figure 12 is the enlarged drawing of E-E section in Figure 10.
Wherein: 1, single-point elects hydraulic transmission; 2, large tank; 3, fuel tank; 4, oil return pipe; 5, choke valve; 6, oil inlet pipe; 7, in line check valve; 8, plunger oil pump; 9, overflow valve; 10, pressure limiting drainback passage; 11, oil sucting one-way valve; 12, fulcrum; 13, lever handle; 14, integration module; 15, valve piston; 16, connecting plate; 17, counterbore; 18, oil leak hole; 19, steel ball; 20, thread bush; 21, switch knob; 22, cylindrical bar; 23, endoporus; 24, draining gap; 25, spill port; 26, groove; 27, overfall; 28, spool; 29, spring base; 30, pressure spring; 31, pressure regulating screw; 32, hold-down screw; 33, fuel sucking pipe.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model will be further described.
Fig. 1, Fig. 2 are that 2 single-point constant flows elect Hydraulic Power Transmission System schematic diagram.Find out from Fig. 1, Fig. 2, it includes 2 single-points in parallel and elects hydraulic transmission 1, described single-point elects hydraulic transmission 1 by the large tank 2 for election weight, and the bottom of large tank 2 is provided with the oil return pipe 4 be connected with fuel tank 3, and oil return pipe 4 is provided with choke valve 5.Large tank 2 is connected with plunger oil pump 8 by the in line check valve 7 of oil inlet pipe 6 through entering large tank 2.Oil inlet pipe 6 between large tank 2 and in line check valve 7 is provided with the overflow valve 9 of pressure limiting, when system pressure exceedes the pressure of overflow valve 9 setting, overflow valve 9 is opened, and hydraulic oil gets back to fuel tank 3 through the pressure limiting drainback passage 10 of overflow valve 9.The oil sucting one-way valve 11 of bottom through entering plunger oil pump 8 of plunger oil pump 8 is connected with fuel tank 3; And the plunger oil pump 8 that each single-point is elected in hydraulic transmission 1 is driven by the same lever handle 13 being fixed on identical fulcrum 12 position.Concrete structure can by the choke valve 5 in two cover single-points election hydraulic transmissions 1, in line check valve 7, plunger oil pump 8, oil sucting one-way valve 11 and the corresponding equal design and installation of pipeline on integration module 14, as shown in Figure 3, Figure 4, plunger oil pump 8 wherein and oil sucting one-way valve 11 are as shown in Fig. 5, Fig. 6, Fig. 7, Fig. 8, two valve pistons 15 in two plunger oil pumps 8 make them link together by connecting plate 16, realize interlock, and be connected with lever handle 13.
Certainly according to the requirement used, fulcrum 12 position of lever handle 13 can also connect more plunger oil pump 8 as 3 or 4 etc., just synchronously can elect 3 or 4 large tanks 2.
Described choke valve 5 is located on oil return pipe 4, that the switch of control oil return flow and speed is as Fig. 9, shown in Figure 10, be included on integration module 14 and be shaped with threaded counterbore 17, center bottom counterbore 17 is shaped with the oil leak hole 18 communicated with large tank 2, oil leak hole bottom counterbore 17 18 mouthfuls is provided with steel ball 19, thread bush 20 is screwed in as shown in figure 11 in the counterbore 17 of steel ball 19 rear end, switch knob 21 is screwed in below at thread bush 20, the front end of switch knob 21 is cylindrical bar 22, to be inserted in the endoporus 23 of thread bush 20 and to withstand steel ball 19, the cylindrical of cylindrical bar 22 and thread bush 20 endoporus 23 form the gap S of ring-type, namely draining gap 24 as shown in figure 12, described draining gap 24 is 0.25-0.35 millimeter.The side of thread bush 20 rear end is shaped with the spill port 25 communicated with fuel tank 3, is made the front end of switch knob 21 push down steel ball 19 or decontrol steel ball 19 to realize opening or closing oil leak hole 18 by the screw-in or exit of switch knob 21.Screw in counterbore 17 for convenience of thread bush 20, be shaped with in-line or criss-cross groove 26 at the end face of thread bush 20.
Described overflow valve 9 includes the spherical valve core 28 blocking overfall 27, and the rear end of spool 28 is spring base 29, pressure spring 30, pressure regulating screw 31 and hold-down screw 32 successively, and when pressure regulating screw 31 screws in, pressure spring 30 pressed spool 28, pressure limiting is increased.
Described in line check valve 7 and the similar overflow valve 9 of oil sucting one-way valve 11, as shown in Figure 5, Figure 7, no longer repeat at this.
Single-point elects the operation principle of hydraulic transmission 1:
1, oil suction: choke valve 5 in off position, lever handle 13 pull-up → plunger oil pump 8 rises → oil sucting one-way valve 11 is opened, in line check valve 7 is closed → hydraulic oil from the container of fuel tank 3 below fuel sucking pipe 33 and oil sucting one-way valve 11 to valve piston 15, complete oil suction work.
2, fuel-displaced: choke valve 5 in off position, lever handle 13 presses down → and plunger oil pump 8 declines → oil sucting one-way valve 11 is closed, in line check valve 7 is opened → and hydraulic oil stretches out to large tank 2 → large tank 2 from plunger oil pump 8 through oil inlet pipe 6 and in line check valve 7, weight on large tank 2 is elected, completes fuel-displaced work.
3, unload oil return: open choke valve 5, under the weight on large tank 2 or load effect, the hydraulic oil in large tank 2 gets back to fuel tank 3 through oil return pipe 4, oil leak hole 18, steel ball 19, draining gap 24, spill port 25, completes oil return work.
4, superpressure oil return: when the hydraulic pressure in large tank 2 exceedes the pressure of overflow valve 9 setting, hydraulic oil overcomes the thrust of pressure spring 30, pushes spool 28 open, and hydraulic oil gets back to fuel tank 3 through pressure limiting drainback passage 10, and maintains system pressure.
In use, by choke valve 5 in off position, the upper and lower tension and compression lever handle 13 of continuous print, can be large tank 2 fuel feeding continuously, make it stretch out and elect weight.When declining, the angle of rotary switch handle 21 can be adopted, regulating aperture and the shut-in time of choke valve 5, accurately can control retraction speed and the stop place of large tank 2.
Claims (4)
1. multiple spot constant flow synchronously elects hydraulic transmission, it is characterized in that it includes more than 2 or 2 single-points in parallel and elects hydraulic transmission, described single-point is elected hydraulic transmission and is comprised the large tank supplying to elect weight, the bottom of large tank is provided with the oil return pipe be connected with fuel tank, oil return pipe is provided with choke valve, large tank is connected with plunger oil pump by the in line check valve of oil inlet pipe through entering large tank, oil inlet pipe between large tank and in line check valve is provided with the overflow valve of pressure limiting, the oil sucting one-way valve of bottom through entering plunger oil pump of plunger oil pump is connected with fuel tank, and the plunger oil pump that each single-point is elected in hydraulic transmission is driven by the same lever handle being fixed on identical position of the fulcrum.
2. multiple spot constant flow synchronously elects hydraulic transmission according to claim 1, it is characterized in that described choke valve, it is the switch controlling oil return flow and speed, be included on valve body and be shaped with threaded counterbore, the center of counterbore base is shaped with the oil leak hole communicated with large tank, at the spill port of counterbore base, steel ball is installed, thread bush is screwed in the counterbore of steel ball rear end, switch knob is screwed in after thread bush, the front end of switch knob is that cylindrical bar to be inserted in the endoporus of thread bush and to withstand steel ball, cylindrical bar cylindrical and thread bush endoporus form the draining gap of ring-type, the side of thread bush rear end is shaped with the spill port communicated with fuel tank, made the front end of switch knob push down steel ball or decontrol steel ball to realize opening or closing oil leak hole by the screw-in or exit of switch knob.
3. multiple spot constant flow synchronously elects hydraulic transmission according to claim 2, it is characterized in that described draining gap is 0.25-0.35 millimeter.
4. multiple spot constant flow synchronously elects hydraulic transmission according to claim 2, it is characterized in that the end face of described thread bush is shaped with the in-line or the cross groove that facilitate bottle opener to screw in counterbore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420699716.0U CN204300006U (en) | 2014-11-20 | 2014-11-20 | Multiple spot constant flow synchronously elects hydraulic transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420699716.0U CN204300006U (en) | 2014-11-20 | 2014-11-20 | Multiple spot constant flow synchronously elects hydraulic transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204300006U true CN204300006U (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420699716.0U Withdrawn - After Issue CN204300006U (en) | 2014-11-20 | 2014-11-20 | Multiple spot constant flow synchronously elects hydraulic transmission |
Country Status (1)
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| CN (1) | CN204300006U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454745A (en) * | 2014-11-20 | 2015-03-25 | 浙江鑫爱达机械有限公司 | Multipoint constant flow synchronous jacking hydraulic transmission device |
| CN107215813A (en) * | 2017-08-04 | 2017-09-29 | 芜湖挺优机电技术有限公司 | Automobile Service tyre dismounting auxiliary lifting device |
| CN107473124A (en) * | 2017-08-17 | 2017-12-15 | 芜湖挺优机电技术有限公司 | Auto repair special balancing lifting device |
| CN108217536A (en) * | 2018-03-12 | 2018-06-29 | 湖北乾奥建设工程有限公司 | Architectural engineering hand operated transport and operating method |
| CN112303046A (en) * | 2020-10-29 | 2021-02-02 | 平湖东来液压工具有限公司 | Hydraulic system of automobile repair platform |
-
2014
- 2014-11-20 CN CN201420699716.0U patent/CN204300006U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454745A (en) * | 2014-11-20 | 2015-03-25 | 浙江鑫爱达机械有限公司 | Multipoint constant flow synchronous jacking hydraulic transmission device |
| CN104454745B (en) * | 2014-11-20 | 2016-08-17 | 浙江鑫爱达机械有限公司 | Multiple spot constant flow synchronizes to elect hydraulic |
| CN107215813A (en) * | 2017-08-04 | 2017-09-29 | 芜湖挺优机电技术有限公司 | Automobile Service tyre dismounting auxiliary lifting device |
| CN107215813B (en) * | 2017-08-04 | 2019-08-13 | 望江县助你兴业财务咨询有限公司 | Automobile Service tyre dismounting auxiliary lifting device |
| CN107473124A (en) * | 2017-08-17 | 2017-12-15 | 芜湖挺优机电技术有限公司 | Auto repair special balancing lifting device |
| CN108217536A (en) * | 2018-03-12 | 2018-06-29 | 湖北乾奥建设工程有限公司 | Architectural engineering hand operated transport and operating method |
| CN112303046A (en) * | 2020-10-29 | 2021-02-02 | 平湖东来液压工具有限公司 | Hydraulic system of automobile repair platform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150429 Effective date of abandoning: 20160817 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |