CN201125898Y - Rotary valve type combined hydraulic distributor - Google Patents
Rotary valve type combined hydraulic distributor Download PDFInfo
- Publication number
- CN201125898Y CN201125898Y CNU2007203028841U CN200720302884U CN201125898Y CN 201125898 Y CN201125898 Y CN 201125898Y CN U2007203028841 U CNU2007203028841 U CN U2007203028841U CN 200720302884 U CN200720302884 U CN 200720302884U CN 201125898 Y CN201125898 Y CN 201125898Y
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- valve
- oilhole
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- force
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Abstract
The utility model discloses a rotary valve type combined hydraulic dispenser which comprises a valve body (3), a valve core (13), a valve cover (4), an operating handle (2) and a safety pressure regulating valve (1). The valve body (1) is provided with an oil inlet opening (5), an oil return opening (10), a strong oil descending opening (6) and a strong lifting channel (27). The strong lifting channel (27) is respectively connected with a self-discharging vehicle oil opening (11) and a strong lifting oil opening (12). The valve body (3) is provided with a cutoff valve (7). The valve core (13) is respectively provided with a strong lifting arc oil groove (17) and a strong oil lifting opening (15) which are connected, a strong descending arc oil groove (26) and a strong oil descending opening (16) which are connected and a reflux oil opening (14). The oil inlet opening (5) is communicated with the strong lifting channel (27) through the strong lifting arc oil groove (17) and the strong oil lifting opening (15). The strong oil descending opening (16) is communicated with the oil return opening (10) through a reflux oil opening (14). When this structure is adopted, the rotary valve type combined hydraulic dispenser has the characteristics of simple and compact structure, convenient operation, reliable service, full function, good versatility, small volume, low cost and the like.
Description
Technical field
The utility model relates to a kind of pressure distributor, particularly a kind of pressure distributor that is used for tractor control agricultural machinery and implement lifting and self-unloading trailer.
Background technique
At present, the pressure distributor that is used for strong liter of tractor control agricultural machinery and implement and neutral operation on the market generally adopts slide-valve structure, relies on agricultural machinery and implement to conduct oneself with dignity during decline and realizes; Its deficiency: the one, axial motion during slide-valve structure work, seal ring damages easily, produces leakage of oil, and operating oil pressure is difficult to guarantee, even causes cisco unity malfunction; The 2nd, the slide-valve structure oil duct loop that do not descend, rate of descent is slow; The 3rd, pull the self-unloading trailer when being used to transport when tractor, need the special hydraulic pressure self-unloading control gear that is equipped with, can not on same operating platform, finish, cause a series of problems such as hydraulic structure complexity, inconvenient operation, rate of fault height, volume are big, cost of production height.For this reason, many scientific research institutions, manufacturing enterprise and knowledgeable people have carried out continuous research and development, but do not have ideal method to solve the problems referred to above so far as yet.
Summary of the invention
For overcoming the above-mentioned defective that existing pressure distributor exists, the purpose of this utility model provides a kind of simple and compact for structure, easy to operate, safe and reliable, rotary valve assembled hydraulic distributor that versatility is good.
The technological scheme that its technical problem that solves the utility model adopts, it comprises valve body, spool, valve gap, Joystick and safe pressure regulator valve, valve gap is fixed on the valve body, spool is arranged in the valve body and stretches out valve gap and Joystick is fixed, described valve body be provided with oil inlet hole, spill port, by force fall oilhole, rise passage by force, strong rise oil duct and be divided into two the tunnel, respectively with the dumping car oilhole and rise oilhole and be connected by force, valve body is provided with closes the strong shutoff valve that rises oilhole; Be respectively equipped with on the spool be connected strong rise the arc oil groove with rise by force oilhole, be connected fall the arc oil groove by force and fall oilhole by force and the backflow oilhole; When by force rising the working position, the oil inlet hole of valve body rises the arc oil groove by spool strong and rises oilhole by force and rises passage and communicate with strong, and the backflow oilhole of oilhole by spool that fall by force of valve body communicates with the spill port of valve body, and the oilhole that falls by force of spool is in blocked state.
In order to control hydraulic working oil pressure, described safe pressure regulator valve is installed on the valve body, and its import links to each other with oil inlet hole, and its outlet communicates with spill port.
Too fast in order to prevent the agricultural machinery and implement rate of descent, described strong rise to be provided with in the oilhole subtract the stream valve, described subtract stream valve form by valve seat and spool, valve seat is fixed on strong the liter on the oilhole, spool is arranged on the valve seat, and spool is provided with the center hole that is communicated with oil circuit, and valve seat is provided with pod apertures.
In order to prevent to leak, on the spool circumferential surface that valve gap cooperates, be provided with seal ring at least.
For the ease of handling the location, the valve gap that cooperates with spool is provided with retaining spring and steel ball, and spool is provided with the gear depression that cooperates with steel ball.
In order to control steering angle, and be fixed with the angle of swing locating stud on the valve gap that spool cooperates, spool is provided with the angle of swing positioning groove that cooperates with locating stud.
After adopting said structure, following advantage is arranged:
The one, when being used for the agricultural machinery and implement operation, the dumping car oilhole blocks with oil and closes because strong rise, neutral, fall by force, floating work directly cooperates with oilhole on the valve body when the different angles by the oilhole on the spool and realizes entirely, therefore, it is very reliable to work, and simple and compact for structure, easy to operate; Can be convenient to the trailing wheel transposing by falling function by force with trailing wheel jack-up; When floating work entirely, tight hard stone run into by agricultural machinery and implement or can float automatically in the plot, remain identical earth-grasping force, and the minimizing agricultural machinery and implement damage.
The 2nd, when being used for the agricultural machinery and implement operation, because rising oilhole is provided with shutoff valve by force, therefore, in the farmland operation or the way of travelling, can close shutoff valve at any time and cut off the oil circuit that links to each other with agricultural machinery and implement, be not subjected to the control of pressure distributor, the agricultural machinery and implement suspended state is remained unchanged, be convenient to transportation, repair; When being used for self-contained car descending operation, shutoff valve is the function conversion;
The 3rd, when being used for self-contained car, the dumping car oilhole links to each other with the dumping car oil cylinder by oil pipe, shutoff valve is in closed condition, by the manipulation handle can realize dumping car strong liter, neutrality, fall by force, floating work entirely, a distributor just can replace two cover hydraulic control devices of original dumping car and agricultural machinery and implement operation, not only easy to operate, reduce production costs, and can reduce the fault point, improve operational safety;
The 4th, this distributor remains unchanged with former installation dimension, therefore easy for installation, highly versatile.
The 5th, owing to subtract the stream valve by force rising to establish in the oilhole, when strong when rising work, subtract and flow the big flow of valve and pass through, make the agricultural machinery and implement fast lifting; When falling work by force, subtract stream valve small flow and pass through, agricultural machinery and implement are slowly descended, too fast damage agricultural machinery and implement can prevent to descend.
The 6th, because rotary spool and seal ring be rotatably assorted, and can only rotate to an angle, therefore, ring wear is little, and leak resistance is good.
Description of drawings
Fig. 1 is the utility model plan view.
Fig. 2 is the utility model plan view.
Fig. 3 is the A-A sectional view of Fig. 1 when rising the working position by force.
Fig. 4 is the A-A sectional view of Fig. 1 when neutral working position.
Fig. 5 is the A-A sectional view of Fig. 1 when falling the working position by force.
Fig. 6 is the A-A sectional view of Fig. 1 when floating the working position entirely.
Fig. 7 is the B-B sectional view of Fig. 2.
Fig. 8 rises oilhole partial structurtes schematic representation by force.
Embodiment
Fig. 1, Fig. 2, Fig. 3, Fig. 6 and shown in Figure 8, be the specific embodiments of the utility model rotary valve assembled hydraulic distributor when rising the working position by force, it comprises valve body 3, spool 13, valve gap 4, Joystick 2 and safe pressure regulator valve 1, valve gap 4 is fixed on the valve body 3, spool 13 is arranged in the valve body 3 and stretches out valve gap 4 and fix with Joystick 2, described valve body 3 is provided with oil inlet hole 5, spill port 10, oilhole 6 falls by force, the strong passage 27 that rises, rising passage 27 is divided into two the tunnel by force, with dumping car oilhole 11 and rise oilhole 12 by force and be connected, valve body 3 is provided with closes the strong shutoff valve 7 that rises oilhole 12 respectively; Be respectively equipped with on the spool 13 be connected strong rise arc oil groove 17 with rise by force oilhole 15, be connected fall arc oil groove 26 by force and fall oilhole 16 by force and backflow oilhole 14; When rising the working position by force, the oil inlet hole 5 of valve body 3 rises arc oil groove 17 by spool 13 strong and rises oilhole 15 by force and rises passage 27 and communicate with strong, the backflow oilhole 14 of oilhole 16 by spool 13 that fall by force of valve body 3 communicates with the spill port 10 of valve body 3, and the oilhole 16 that falls by force of spool 13 is in blocked state; Described safe pressure regulator valve 1 is installed on the valve body 3, and its import links to each other with oil inlet hole 5, and its outlet communicates with spill port 10; Described strong rise be provided with in the oilhole 12 subtract stream valve 18, subtract stream valve 18 forms by valve seat 24 and spool 23, valve seat 24 is fixed on strong the liter on the oilhole 12, spool 23 is arranged on the valve seat 24, spool 23 be provided with the connection oil circuit center hole, valve seat 24 is provided with pod apertures 25; On spool 13 circumferential surfacies that valve gap 4 cooperates, be provided with seal ring 21 at least; The valve gap 4 that cooperates with spool 13 is provided with retaining spring 20 and steel ball 19, and spool 13 is provided with the gear depression that cooperates with steel ball 19; Be fixed with angle of swing locating stud 22 on the valve gap 4 that spool 13 cooperates, spool 13 is provided with the angle of swing positioning groove that cooperates with locating stud 22.Sequence number 9 is closed for the processing technology hole is blocked by oil.
When being used for the agricultural machinery and implement operation, dumping car oilhole 11 usefulness oil block and close, and in the farmland operation or the way of travelling, can close shutoff valve 7 at any time and cut off the oil circuit that links to each other with agricultural machinery and implement, no longer are subjected to the control of pressure distributor, and the agricultural machinery and implement suspended state is remained unchanged.When being used for self-contained car, dumping car oilhole 11 links to each other with the dumping car oil cylinder by oil pipe, and shutoff valve 7 is in closed condition.
Fig. 3 is the structural representation when rising the working position by force, at this moment, oil inlet hole 5 by strong rise arc oil groove 17 and rise oilhole 15 by force rise passage 27 and communicate with strong, the strong passage 27 that rises is again respectively with dumping car oilhole 11 and rise oilhole 12 and be connected by force, fall oilhole 6 by force and communicate with spill port 10, fall oilhole 16 by force and be in blocked state by backflow oilhole 14.When being used for the agricultural machinery and implement operation, dumping car oilhole 11 usefulness oil block and close, shutoff valve 7 is in open mode, after the hydraulic pump works, hydraulic oil is by oil inlet hole 5, the strong arc oil groove 17 that rises, the strong oilhole 15 that rises, the strong passage 27 that rises, subtract stream valve 18 and rising oilhole 12 rises end by force with the operating cylinder that hydraulic oil is transported to agricultural machinery and implement by force, subtract stream valve 18 this moment and be in big flow on state, hydraulic oil from the spool 23 center hole and the pod apertures 25 on the valve seat 24 flow through, thereby promote the agricultural machinery and implement fast rise, the operating cylinder of agricultural machinery and implement falls the end oil return by force by falling oilhole 6 by force, spill port 14 and spill port 10 are got back to fuel reserve tank; After rising put in place, the back pressure of oil inlet hole 5 raise, and hydraulic oil is got back to fuel reserve tank by safety pressure regulator valve 1 and spill port 10.When being used for the operation of self-contained car, dumping car oilhole 11 links to each other with the dumping car oil cylinder, shutoff valve 7 is in closed condition, after the hydraulic pump works, hydraulic oil by oil inlet hole 5, by force rise arc oil groove 17, by force rise oilhole 15, rise passage 27 by force, dumping car oilhole 11 rises end by force with the operating cylinder that hydraulic oil is transported to dumping car, promotes the dumping car fast rise; After rising put in place, hydraulic oil was got back to fuel reserve tank automatically by safety pressure regulator valve 1.
Structural representation when Fig. 4 is neutral working position, at this moment, oil inlet hole 5 communicates with spill port 10 by the strong arc oil groove 17 that rises, and falls oilhole 6 by force and rising passage 27 is in blocked state by force.When being used for the agricultural machinery and implement operation, dumping car oilhole 11 usefulness oil block and close, and shutoff valve 7 is in open mode, after the hydraulic pump works, hydraulic oil by oil inlet hole 5, rise arc oil groove 17 by force and spill port 10 is got back to fuel reserve tank; This moment link to each other with agricultural machinery and implement operating cylinder two ends strong rise oilhole 12 and fall oilhole 6 by force be in sealed condition, the oil pressure of agricultural machinery and implement operating cylinder remains unchanged, agricultural machinery and implement remain original position and are in neutral working state.When being used for the operation of self-contained car, dumping car oilhole 11 links to each other with the dumping car oil cylinder, shutoff valve 7 is in closed condition, after the hydraulic pump works, hydraulic oil by oil inlet hole 5, rise arc oil groove 17 by force and spill port 10 is got back to fuel reserve tank, be in sealed condition with self-contained turner as the self-contained car oilhole 11 that oil cylinder links to each other this moment, and the oil pressure that oil cylinder is made in self-contained turner remains unchanged, and self-contained car remains original position and is in neutral working state.
Fig. 5 is the structural representation when falling the working position by force, at this moment, oil inlet hole 5 is by falling arc oil groove 26 by force, falling oilhole 16 and fall oilhole 6 by force and communicate by force, rising passage 27 by force communicates with spill port 10 by the strong arc oil groove 17 that rises, the strong passage 27 that rises rises oilhole 15 by force and is in blocked state again respectively with dumping car oilhole 11 and rise oilhole 12 and be connected by force.When being used for the agricultural machinery and implement operation, dumping car oilhole 11 usefulness oil block and close, shutoff valve 7 is in open mode, after the hydraulic pump works, hydraulic oil is by oil inlet hole 5, arc oil groove 26 falls by force, oilhole 16 falls by force and fall by force oilhole 6 hydraulic oil is transported to agricultural machinery and implement operating cylinder end falls by force, the promotion agricultural machinery and implement descend, the operating cylinder of agricultural machinery and implement rises the oil return of end by force by rising oilhole 12 by force, subtract stream valve 18, the strong passage 27 that rises, the strong arc oil groove 17 that rises, spill port 10 is got back to fuel reserve tank, subtract stream valve 18 this moment and be in the small flow on state, the hydraulic oil only center hole from the spool 23 flows through, thereby agricultural machinery and implement are slowly descended; After decline put in place, the back pressure of oil inlet hole 5 raise, and hydraulic oil is got back to fuel reserve tank by safety pressure regulator valve 1 and spill port 10.When being used for the operation of self-contained car, dumping car oilhole 11 links to each other with the dumping car oil cylinder, shutoff valve 7 is in closed condition, whether hydraulic pump works falls operation by force with self-contained car has nothing to do, the hydraulic oil of dumping car operating cylinder under the pressure of deadweight by dumping car oilhole 11, by force rise passage 27, rise arc oil groove 17 by force and spill port 10 is got back to fuel reserve tank, dumping car descends naturally.
Fig. 6 is the structural representation when floating the working position entirely, and at this moment, the oil inlet hole 5 of valve body 3 communicates with spill port 10 by falling arc oil groove 26 by force; Spill port 10 by strong rise arc oil groove 17, by force rise oilhole 15 successively with strong rise passage 27 and fall oilhole 6 by force communicate, rise oil duct 27 by force again respectively with dumping car oilhole 11 and rise oilhole 12 by force and be connected, fall oilhole 16 by force and be in blocked state.When being used for the agricultural machinery and implement operation, dumping car oilhole 11 usefulness oil block and close, and shutoff valve 7 is in open mode, after the hydraulic pump works, hydraulic oil by oil inlet hole 5, by force arc oil groove 26 falls and spill port 10 is got back to fuel reserve tank; The agricultural machinery and implement operating cylinder fall by force the end oil return by fall by force oilhole 6, by force rise oilhole 15, rise arc oil groove 17 by force and spill port 10 is got back to fuel reserve tank; Agricultural machinery and implement operating cylinder strong rises the end oil return by rising oilhole 12 by force, subtract stream valve 18, rise oil duct 27 by force, rising arc oil groove 17 by force and spill port 10 is got back to fuel reserve tank; Agricultural machinery and implement operating cylinder two ends do not have pressure, and agricultural machinery and implement are in the floating full working state of no pressure.When being used for the operation of self-contained car, dumping car oilhole 11 links to each other with the dumping car oil cylinder, and shutoff valve 7 is in closed condition, after the hydraulic pump works, hydraulic oil by oil inlet hole 5, by force arc oil groove 26 falls and spill port 10 is got back to fuel reserve tank; The hydraulic oil of dumping car operating cylinder under the pressure of deadweight by dumping car oilhole 11, by force rise passage 27, rise arc oil groove 17 by force and spill port 10 is got back to fuel reserve tank, dumping car descends naturally.
Claims (7)
1, a kind of rotary valve assembled hydraulic distributor, comprise valve body (3), spool (13), valve gap (4), Joystick (2) and safe pressure regulator valve (1), valve gap (4) is fixed on the valve body (3), spool (13) is arranged in the valve body (3) and stretches out valve gap (4) and fix with Joystick (2), it is characterized in that: described valve body (3) is provided with oil inlet hole (5), spill port (10), oilhole (6) falls by force, the strong passage (27) that rises, rising passage (27) is divided into two the tunnel by force, with dumping car oilhole (11) and by force rise oilhole (12) and be connected, valve body (3) is provided with closes the strong shutoff valve (7) that rises oilhole (12) respectively; Be respectively equipped with on the spool (13) be connected strong rise arc oil groove (17) with rise by force oilhole (15), be connected fall arc oil groove (26) by force and fall oilhole (16) by force and backflow oilhole (14); When rising the working position by force, the oil inlet hole (5) of valve body (3) rises arc oil groove (17) by spool (13) strong and rises oilhole (15) by force and rises passage (27) and communicate with strong, the backflow oilhole (14) of oilhole (16) by spool (13) that fall by force of valve body (3) communicates with the spill port (10) of valve body (3), and the oilhole (16) that falls by force of spool (13) is in blocked state.
2, rotary valve assembled hydraulic distributor according to claim 1 is characterized in that: described safe pressure regulator valve (1) is installed on the valve body (3), and its import links to each other with oil inlet hole (5), and its outlet communicates with spill port (10).
3, rotary valve assembled hydraulic distributor according to claim 1 and 2 is characterized in that: described strong rise be provided with in the oilhole (12) subtract stream valve (18).
4, rotary valve assembled hydraulic distributor according to claim 3, it is characterized in that: the described stream valve (18) that subtracts is made up of valve seat (24) and spool (23), valve seat (24) is fixed on strong the liter on the oilhole (12), spool (23) is arranged on the valve seat (24), spool (23) is provided with the center hole that is communicated with oil circuit, and valve seat (24) is provided with pod apertures (25).
5, rotary valve assembled hydraulic distributor according to claim 4 is characterized in that: be provided with seal ring (21) at least on spool (13) circumferential surface that valve gap (4) cooperates.
6, rotary valve assembled hydraulic distributor according to claim 5 is characterized in that: the valve gap (4) that cooperates with spool (13) is provided with retaining spring (20) and steel ball (19), and spool (13) is provided with the gear depression that cooperates with steel ball (19).
7, rotary valve assembled hydraulic distributor according to claim 6 is characterized in that: be fixed with angle of swing locating stud (22) on the valve gap (4) that spool (13) cooperates, spool (13) is provided with the angle of swing positioning groove that cooperates with locating stud (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203028841U CN201125898Y (en) | 2007-12-11 | 2007-12-11 | Rotary valve type combined hydraulic distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203028841U CN201125898Y (en) | 2007-12-11 | 2007-12-11 | Rotary valve type combined hydraulic distributor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201125898Y true CN201125898Y (en) | 2008-10-01 |
Family
ID=39999367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007203028841U Expired - Fee Related CN201125898Y (en) | 2007-12-11 | 2007-12-11 | Rotary valve type combined hydraulic distributor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201125898Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103109611A (en) * | 2011-11-17 | 2013-05-22 | 常州联发凯迪机械有限公司 | Distributor control mechanism for tractor |
-
2007
- 2007-12-11 CN CNU2007203028841U patent/CN201125898Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103109611A (en) * | 2011-11-17 | 2013-05-22 | 常州联发凯迪机械有限公司 | Distributor control mechanism for tractor |
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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: 20081001 Termination date: 20100111 |