CN103410883B - A kind of handheld agricultural machine hydraulic clutch - Google Patents
A kind of handheld agricultural machine hydraulic clutch Download PDFInfo
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- CN103410883B CN103410883B CN201310291592.2A CN201310291592A CN103410883B CN 103410883 B CN103410883 B CN 103410883B CN 201310291592 A CN201310291592 A CN 201310291592A CN 103410883 B CN103410883 B CN 103410883B
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- oil
- clutch
- oil pump
- operating handle
- outer end
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- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The invention discloses a kind of handheld agricultural machine hydraulic clutch, comprise oil pump, clutch body, the axis hole run through is provided with in oil pump, pinion carrier is provided with in axis hole, oil pump is also provided with the driven gear engaged with pinion carrier, oil pump is provided with oil hydraulic cylinder with the opposite end of engine output shaft, the hydraulic pressure cavity of one end open is provided with in oil hydraulic cylinder, hydraulic pressure cavity is communicated with oil pump, piston is provided with in hydraulic pressure cavity, clutch body is connected to the outer end of oil hydraulic cylinder, the outer end of piston contacts with clutch body and connects, the oil-discharging circuit with hydraulic chamber into communication is also provided with in oil hydraulic cylinder, the side of oil pump is provided with the on-off control mechanism controlling oil-discharging circuit break-make.Therefore, the present invention has to handle only needs very little steering force can realize the clutch of clutch, uses more laborsaving, beneficial effect easily.
Description
Technical field
The present invention relates to Clutch Technology field, particularly relate to a kind of handheld agricultural machine hydraulic clutch.
Background technique
Clutch is arranged between motor and speed changer, is the total member be directly associated with motor in automotive transmission.The flywheel group of usual clutch and engine crankshaft is installed together, and is the parts of cut-out and transferring power between motor and automotive transmission.Automobile is from starting to the normal whole process travelled, and driver can controlled clutch as required, makes motor and power train temporarily be separated or engage gradually, to cut off or to transmit the power that motor exports to power train.Clutch on automobile is generally all controlled by foot treadle, and on walking agricultural machine, the clutch of clutch is controlled by operating handle, lever or push rod is utilized to realize the clutch of clutch, like this will because of due to arm-rest of farm machinery from agricultural machinery body apart from far, cause operating handle very long, use the steering force that needs are very large, simultaneously, in use because the reasons such as friction cause control system gap to increase, under identical stroke, friction clutch in use combination force reduces serious, even there is the not enough situation of combination force, therefore need regularly to carry out gap adjustment to control system.
Chinese patent Authorization Notice No.: CN201575083U, authorized announcement date on September 8th, 2010, discloses a kind of tractor clutch, comprises shell, smooth block, shift level, smooth block installs ball bearing additional; Smooth block two ends are respectively equipped with circumference and connect hole and spline connects hole; The middle part of smooth block is provided with dials baffle ring; The shell two ends side of being respectively equipped with land and circle connected unit, upside is provided with gear shift seat, and there is slide block circular channel centre; Gear shift seat center is provided with gear shift groove, is communicated with, wherein lays a shift level with slide block circular channel, and the shifting block of its lower end reaches in gearshift ring; Shift level is fixed in gear shift groove by stationary axle, and slightly below is provided with shift finger; Shift finger is made up of the steel ball being pressed in shift level side, the clamping bolt that is pressed in spring on steel column and fixing spring, and there are two corresponding pits the side of shift level.This kind of clutch, has installed ball bearing additional, has reduced running noise, and smooth block can obtain good support simultaneously, more durable, and whole clutch long service life is not fragile.When its deficiency is the clutch being realized tractor clutch by operating mechanism, needs larger steering force, use inconvenience.
Summary of the invention
The present invention needs very large steering force in order to overcome clutch of the prior art when handling, use inconvenient deficiency, provide the less steering force of a kind of use and just can realize separation, the connection of clutch, handle more laborsaving, handheld agricultural machine hydraulic clutch easily.
To achieve these goals, the present invention adopts following technological scheme:
A kind of handheld agricultural machine hydraulic clutch, comprise oil pump, the clutch body be connected with oil pump one end, the axis hole run through is provided with in oil pump, the pinion carrier be connected with engine output shaft is provided with in axis hole, oil pump is also provided with and engages with pinion carrier and for driving the driven gear of oil pump work, oil pump is provided with oil hydraulic cylinder with the opposite end of engine output shaft, the hydraulic pressure cavity of one end open is provided with in oil hydraulic cylinder, described hydraulic pressure cavity is communicated with oil pump, piston is provided with in hydraulic pressure cavity, clutch body is connected to the outer end of oil hydraulic cylinder, the outer end of piston contacts with clutch body and connects, the oil-discharging circuit with hydraulic chamber into communication is also provided with in described oil hydraulic cylinder, the side of described oil pump is provided with the on-off control mechanism controlling oil-discharging circuit break-make.Normal state, oil-discharging circuit is in folding condition, engine output shaft drives pinion carrier to rotate, pinion carrier drives driven gear to rotate, thus realize oil pump and constantly the fluid in gearbox is supplied in hydraulic pressure cavity, because oil-discharging circuit is in folding condition, then the fluid in hydraulic pressure cavity is got back in gearbox from oil-discharging circuit, under this state, the piston in hydraulic pressure cavity is without motion, when need the transmission of power of engine output shaft to speed changer time, solenoidoperated cluthes operating mechanism, oil-discharging circuit is disconnected, fluid in hydraulic pressure cavity cannot be got rid of, and oil pump also supplies fluid to hydraulic pressure cavity endlessly, oil liquid pressure in hydraulic pressure cavity improves constantly, thus make piston movement, promote clutch body action, the power realized in clutch body combines, realize transmission of power, when needs power disconnects, namely after oil-discharging circuit being disconnected, fluid discharges the disconnection that unloading pressure realizes power connection, the steering force of the dynamic clutch in whole clutch body is all provided by engine output shaft, as long as and operator is by changing the connection of oil-discharging circuit, disconnect this two states to realize in clutch body from, close, the steering force that operator needs is very little, handle very convenient, laborsaving.
As preferably, described on-off control mechanism comprises operating rod bearing, the control frame of the operating handle be located in operating rod bearing, control operating handle, the oil-discharging cavity that oil-discharging circuit is communicated with is provided with in described operating rod bearing, operating handle is located in oil-discharging cavity, the end, outer end of operating handle is connected with control frame by bolt, the inner end of operating handle is provided with center hole, and the interior end side surface of described operating handle is provided with the oil drainage hole be communicated with center hole, and the opening of center hole is communicated with gearbox.Connection and the disconnection of oil-discharging circuit is realized by rotating operating handle, under nature, oil drainage hole is communicated with oil-discharging circuit and is communicated with center hole, and the opening of center hole is communicated with gearbox, therefore the fluid in hydraulic pressure cavity is successively through oil-discharging circuit, oil drainage hole, center hole is got back in gearbox, now clutch is in and disconnects power coupled condition, when needs clutch is in conjunction with transferring power, rotate control frame, spacing after driving operating handle to rotate an angle, thus oil drainage hole is not alignd with oil drain passage, now oil-discharging circuit disconnects, fluid in hydraulic pressure cavity gathers rear promotion piston and moves, realize power to combine.
As preferably, the inner periphery of described operating handle is arranged with torsion spring, and one end of torsion spring is connected with operating rod bearing, and the other end is connected with operating handle.Torsion spring plays automatically reset function, when clutch is in bonding state, as long as now unclamp the spacing of control frame, clutch operating device can automatically reset under the torsional interaction of torsion spring, thus oil drainage hole is communicated with oil-discharging circuit unload fluid, realize clutch power and be separated.
As preferably, between the outer end of described operating handle and operating rod bearing, be provided with seal ring.Seal ring plays seal action, prevents fluid from leaking out from the outer end handling seat.
As preferably, described oil hydraulic cylinder is also provided with Decompression valves, the inner of Decompression valves and hydraulic chamber into communication, the outer end of Decompression valves is connected with gearbox by connecting tube.After ensureing that each clutch combines completely, the pressure of piston to clutch body is identical, oil hydraulic cylinder arranges Decompression valves, at every turn when clutch is completely in conjunction with rear stable rear transferring power, identical during the pressure of the fluid in hydraulic pressure cavity to piston, namely the pressure that receives of piston is identical with the setting pressure of Decompression valves, when oil pump continues to pump into fluid in hydraulic pressure cavity, the pressure that pressure now in hydraulic pressure cavity sets higher than Decompression valves, then fluid enters in gearbox from Decompression valves, thus keeps the steady pressure in hydraulic pressure cavity.
As preferably, described clutch body comprises clutch housing, the clutch spindle be located in clutch housing, the clutch follower corresponding with clutch spindle, being respectively equipped with between described clutch spindle and clutch follower can rotating plate, the driven plate of clutch mutually, reset pad is provided with between rotating plate and driven plate, the outer end of described rotating plate is provided with thrust-bearing, and the outer end of described thrust-bearing contacts with the external end impacts of piston.Clutch body is connected with oil hydraulic cylinder by clutch connecting head, the end of clutch follower is connected with speed changer by spline, when oil-discharging circuit disconnects, piston in hydraulic pressure cavity moves promotion thrust-bearing and moves, thus rotating plate compresses driven plate, thus the power realized between clutch spindle with clutch follower is connected, when oil-discharging circuit is communicated with, load on rotating plate removes, rotating plate and thrust-bearing reset under the effect of reset pad, thus the power realized between clutch spindle and clutch follower disconnects.
As preferably, clutch spindle and engine output shaft coaxially distribute, and clutch spindle is provided with taper hole near the end of engine output shaft one end, are provided with the open conical sleeve be connected with engine spindle in described taper hole.Engine output shaft is connected with clutch spindle by open conical sleeve, connects very convenient, simultaneously also stable, reliable.
As preferably, described oil pump is provided with oil filter, and oil filter is provided with oil inlet pipe, and the outer end of described oil inlet pipe is connected with gearbox.By the filtration of oil filter between fluid ingress engine oil pump in gearbox, prevent the impurity in fluid, particulate material enters in hydraulic pressure cavity, cause blocking and affect the stability of clutch.
Therefore, the present invention has to handle only needs very little steering force can realize the clutch of clutch, uses more laborsaving, beneficial effect easily.
Meanwhile, after wearing and tearing between the rotating plate in the present invention, driven plate, piston automatically according to abrasion condition adjustment stroke, can keep stable between rotating plate, driven plate, reliable combination force, thus makes overall structure performance more stable.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention.
Fig. 2 is that in the present invention, clutch body is in separated state schematic diagram.
Fig. 3 is that in the present invention, clutch body is in bonding state schematic diagram.
Fig. 4 is overall structure schematic diagram of the present invention.
In figure: oil pump 1 clutch body 2 axis hole 3 pinion carrier 4 driven gear 5 oil hydraulic cylinder 6 hydraulic pressure cavity 7 piston 8 oil-discharging circuit 9 on-off control mechanism 10 operating rod bearing 11 operating handle 12 control frame 13 oil-discharging cavity 14 center hole 15 oil drainage hole 16 torsion spring 17 seal ring 18 Decompression valves 19 clutch housing 20 clutch spindle 21 clutch follower 22 rotating plate 23 driven plate 24 resets pad 25 thrust-bearing 26 taper hole 27 open conical sleeve 28 oil filter 29 oil inlet pipe 30 clutch connecting sleeve 31 engine output shaft 32 transmission input shaft 33.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described:
A kind of handheld agricultural machine hydraulic clutch as shown in Figure 1, the clutch body 2 comprise oil pump 1, being connected with oil pump one end, oil pump 1 is provided with oil filter 29, and oil filter 29 is provided with oil inlet pipe 30, and the outer end of oil inlet pipe 30 is connected with gearbox, the axis hole 3 run through is provided with in oil pump 1, the pinion carrier 4 be connected with engine output shaft 32 is provided with in axis hole 3, oil pump 1 is also provided with and engages with pinion carrier 4 and driven gear 5 for driving oil pump 1 to work, oil pump 1 is provided with oil hydraulic cylinder 6 with the opposite end of engine output shaft, the hydraulic pressure cavity 7 of lower ending opening is provided with in oil hydraulic cylinder 6, hydraulic pressure cavity 7 is communicated with oil pump 1, piston 8 is provided with in hydraulic pressure cavity 7, clutch body 2 is threaded by the lower end outside of clutch connecting sleeve 31 with oil hydraulic cylinder 6, clutch body 2 comprises clutch housing 20, be located at the clutch spindle 21 in clutch housing, the clutch follower 22 corresponding with clutch spindle, being respectively equipped with between clutch spindle 21 and clutch follower 22 can the rotating plate 23 of clutch mutually, driven plate 24, reset pad 25 is provided with between rotating plate 23 and driven plate 24, the outer end of rotating plate 23 is positioned at clutch connecting sleeve 31 and is provided with thrust-bearing 26, the upper end of thrust-bearing 26 compresses with the lower end of piston 8 and contacts, the oil-discharging circuit 9 be communicated with hydraulic pressure cavity 7 is also provided with in oil hydraulic cylinder 6, the side of oil pump 1 is provided with the on-off control mechanism 10 controlling oil-discharging circuit break-make.
As shown in the Fig. 3 of Fig. 2 river, on-off control mechanism 10 comprises operating rod bearing 11, be located at the operating handle 12 in operating rod bearing, control the control frame 13 of operating handle, the oil-discharging cavity 14 that oil-discharging circuit is communicated with is provided with in operating rod bearing 11, operating handle 12 is arranged in oil-discharging cavity 14, operating handle can all rotate in oil-discharging cavity, the end, outer end of operating handle 12 is connected with control frame 13 by bolt, the inner end of operating handle 12 is provided with center hole 15, the interior end side surface of operating handle 12 is provided with the oil drainage hole 16 be communicated with center hole, the opening of center hole 15 is communicated with gearbox, the inner periphery of operating handle 12 is arranged with torsion spring 17, one end of torsion spring 17 is connected with operating rod bearing 11, the other end is connected with operating handle 12, be illustrated in figure 2 clutch in the raw, now oil drainage hole is communicated with oil-discharging circuit, engine output shaft drives oil pump work all the time, as shown in Figure 4, fluid in gearbox is successively through oil inlet pipe 30, oil filter 29, oil pump, in hydraulic pressure cavity, fluid is pumped in hydraulic pressure cavity endlessly, fluid in hydraulic pressure cavity enters again in center hole from oil-discharging circuit, then get back in gearbox from the opening end of center hole, now piston does not move, clutch spindle 21 in clutch body 2 is in separated state with clutch follower 22, power cannot transmit, when needs clutch is in conjunction with transferring power, only need control frame to rotate an angle and spacing, now oil-discharging circuit and oil drainage hole stagger, as shown in Figure 3, oil-discharging circuit is closed and cannot forms loop, now fluid is still pumped in hydraulic pressure cavity, along with the pressure increase in hydraulic pressure cavity, the piston drive thrust-bearing that moves down slowly moves down, rotating plate and driven plate compress and to contact thus the transmission of power of clutch spindle to clutch follower, realize transmission of power, when the pressure in hydraulic pressure cavity reaches the setting pressure of Decompression valves, unnecessary fluid can flow out from Decompression valves again and enter in gearbox, thus the pressure keeping piston to receive is identical at every turn, when needs power separates, the spacing of control frame is unclamped, after operating handle rotates an angle under the effect of torsion spring, just in time oil drainage hole is communicated with pressure release with oil-discharging circuit.As can be seen from aforesaid operations process obviously, operator is when manipulation frame rotates, control frame does not almost have torsional load, very light, laborsaving when therefore rotating, simultaneously because the displacement of piston in hydraulic pressure cavity is unrestricted, between rotating plate and driven plate because friction and thinning generation micro-gap time, then when power combines, the displacement corresponding with this gap can be automatically increased after piston pressurized, the combination force of clutch can not be affected because of the gap of friction, wearing and tearing generation, use more reliable, stable, working life is also longer.
In the present embodiment, seal ring 18 is provided with between the outer end of operating handle 12 and operating rod bearing 12, oil hydraulic cylinder 6 is also provided with Decompression valves 19, the inner of Decompression valves 19 is communicated with hydraulic pressure cavity 7, the outer end of Decompression valves 19 is connected with gearbox by connecting tube, seal ring plays seal action, prevents fluid from leaking out from the outer end handling seat; Clutch spindle 21 and engine output shaft 32 coaxially distribute, clutch spindle 21 is provided with taper hole 27 near the end of engine output shaft one end, the open conical sleeve 28 be connected with engine spindle is provided with in taper hole 27, engine output shaft is connected with clutch spindle by open conical sleeve, connect very convenient, simultaneously also stable, reliable.Therefore, the present invention has to handle only needs very little steering force can realize the clutch of clutch, uses more laborsaving, beneficial effect easily.Meanwhile, after wearing and tearing between the rotating plate in the present invention, driven plate, piston automatically according to abrasion condition adjustment stroke, can keep stable between rotating plate, driven plate, reliable combination force, thus makes overall structure performance more stable.
Claims (6)
1. a handheld agricultural machine hydraulic clutch, it is characterized in that, comprise oil pump (1), the clutch body (2) be connected with oil pump one end, the axis hole (3) run through is provided with in oil pump (1), the pinion carrier (4) be connected with engine output shaft (32) is provided with in axis hole (3), oil pump (1) is also provided with and engages with pinion carrier (4) and driven gear (5) for driving oil pump (1) to work, oil pump (1) opposite end that is upper and engine output shaft is provided with oil hydraulic cylinder (6), the hydraulic pressure cavity (7) of one end open is provided with in oil hydraulic cylinder (6), described hydraulic pressure cavity (7) is communicated with oil pump (1), piston (8) is provided with in hydraulic pressure cavity (7), clutch body (2) is connected to the outer end of oil hydraulic cylinder (6), the outer end of piston (8) contacts with clutch body (2) and connects, the oil-discharging circuit (9) be communicated with hydraulic pressure cavity (7) is also provided with in described oil hydraulic cylinder (6), the side of described oil pump (1) is provided with the on-off control mechanism (10) controlling oil-discharging circuit break-make, described on-off control mechanism (10) comprises operating rod bearing (11), be located at the operating handle (12) in operating rod bearing, control the control frame (13) of operating handle, the oil-discharging cavity (14) that oil-discharging circuit is communicated with is provided with in described operating rod bearing (11), operating handle (12) is located in oil-discharging cavity (14), the end, outer end of operating handle (12) is connected with control frame (13) by bolt, the inner end of operating handle (12) is provided with center hole (15), the interior end side surface of described operating handle (12) is provided with the oil drainage hole (16) be communicated with center hole, the opening of center hole (15) is communicated with gearbox, described oil pump (1) is provided with oil filter (29), and oil filter (29) is provided with oil inlet pipe (30), and the outer end of described oil inlet pipe (30) is connected with gearbox.
2. a kind of handheld agricultural machine hydraulic clutch according to claim 1, it is characterized in that, the inner periphery of described operating handle (12) is arranged with torsion spring (17), and one end of torsion spring (17) is connected with operating rod bearing (11), and the other end is connected with operating handle (12).
3. a kind of handheld agricultural machine hydraulic clutch according to claim 1 and 2, is characterized in that, is provided with seal ring (18) between the outer end of described operating handle (12) and operating rod bearing (12).
4. a kind of handheld agricultural machine hydraulic clutch according to claim 1, it is characterized in that, described oil hydraulic cylinder (6) is also provided with Decompression valves (19), and the inner of Decompression valves (19) is communicated with hydraulic pressure cavity (7), and the outer end of Decompression valves (19) is connected with gearbox by connecting tube.
5. a kind of handheld agricultural machine hydraulic clutch according to claim 1, it is characterized in that, described clutch body (2) comprises clutch housing (20), be located at the clutch spindle (21) in clutch housing, the clutch follower (22) corresponding with clutch spindle, being respectively equipped with between described clutch spindle (21) and clutch follower (22) can the rotating plate (23) of clutch mutually, driven plate (24), reset pad (25) is provided with between rotating plate (23) and driven plate (24), the outer end of described rotating plate (23) is provided with thrust-bearing (26), the outer end of described thrust-bearing (26) contacts with the external end impacts of piston (8).
6. a kind of handheld agricultural machine hydraulic clutch according to claim 5, it is characterized in that, clutch spindle (21) and engine output shaft coaxially distribute, clutch spindle (21) is provided with taper hole (27) near the end of engine output shaft (32) one end, is provided with the open conical sleeve (28) be connected with engine spindle in described taper hole (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310291592.2A CN103410883B (en) | 2013-07-12 | 2013-07-12 | A kind of handheld agricultural machine hydraulic clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310291592.2A CN103410883B (en) | 2013-07-12 | 2013-07-12 | A kind of handheld agricultural machine hydraulic clutch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103410883A CN103410883A (en) | 2013-11-27 |
| CN103410883B true CN103410883B (en) | 2015-08-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310291592.2A Ceased CN103410883B (en) | 2013-07-12 | 2013-07-12 | A kind of handheld agricultural machine hydraulic clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103410883B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671620A (en) * | 2013-12-03 | 2014-03-26 | 天津工程机械研究院 | Hydraulic pump clutch for engineering machines |
| CN108916261B (en) * | 2018-07-16 | 2019-08-27 | 武汉理工大学 | A kind of castellated hydraulic clutch |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3321054A (en) * | 1965-02-03 | 1967-05-23 | Caterpillar Tractor Co | Transmission lock |
| JPS5022959A (en) * | 1973-07-05 | 1975-03-12 | ||
| US3964585A (en) * | 1975-03-13 | 1976-06-22 | Kubota Tekko Kabushiki Kaisha | Hydraulic double clutch of the wet type with pressure control valves |
| CN2634184Y (en) * | 2003-07-10 | 2004-08-18 | 秦承府 | Rotary drill bit clutch |
| CN201086705Y (en) * | 2007-09-29 | 2008-07-16 | 傅强 | Master pump structure |
| WO2012146227A1 (en) * | 2011-04-27 | 2012-11-01 | Schaeffler Technologies AG & Co. KG | Arrangement for safeguarding against dirt in a working cylinder |
| CN202867376U (en) * | 2012-09-26 | 2013-04-10 | 杭州萧山江南通用机械厂 | Hydraulic control valve |
| CN203453340U (en) * | 2013-07-12 | 2014-02-26 | 永康市宏跃动力机械有限公司 | Hand-steered agricultural machine hydraulic clutch |
-
2013
- 2013-07-12 CN CN201310291592.2A patent/CN103410883B/en not_active Ceased
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| Publication number | Publication date |
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| CN103410883A (en) | 2013-11-27 |
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