CN203453340U - Hand-steered agricultural machine hydraulic clutch - Google Patents
Hand-steered agricultural machine hydraulic clutch Download PDFInfo
- Publication number
- CN203453340U CN203453340U CN201320413294.1U CN201320413294U CN203453340U CN 203453340 U CN203453340 U CN 203453340U CN 201320413294 U CN201320413294 U CN 201320413294U CN 203453340 U CN203453340 U CN 203453340U
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- oil
- clutch
- oil pump
- outer end
- operating handle
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- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The utility model discloses a hand-steered agricultural machine hydraulic clutch which comprises an oil pump and a clutch body. A through shaft hole is formed in the oil pump, a driving gear sleeve is arranged in the shaft hole, and the oil pump is further provided with a driven gear meshed with the driving gear sleeve. One end, opposite to an output shaft of an engine, of the oil pump is provided with a hydraulic cylinder, a hydraulic chamber with an open end is arranged in the hydraulic cylinder and is communicated with the oil pump, and a piston is arranged in the hydraulic chamber. The clutch body is connected to the outer end of the hydraulic cylinder, and the outer end of the piston is connected with the clutch body in a contacted mode. An oil discharging loop communicated with the hydraulic chamber is further arranged in the hydraulic cylinder, and a separation and reunion control mechanism controlling on-off of the oil discharging loop is arranged on the side face of the oil pump. Separation and reunion of the clutch can be achieved only through extremely small operating force in operation, so that the clutch saves more strength and is convenient to use.
Description
Technical field
The utility model relates to Clutch Technology field, relates in particular to a kind of walking agricultural machine hydraulic coupling.
Background technique
Clutch is arranged between motor and speed changer, is the total member being directly associated with motor in automotive transmission.Conventionally clutch is installed together with the flywheel group of engine crankshaft, is the parts of cut-out and transferring power between motor and automotive transmission.Automobile is from starting to the whole process of normally travelling, and driver is controlled clutch as required, makes motor and power train temporary transient separated or engage gradually the power of exporting to power train to cut off or to transmit motor.Clutch on automobile is generally all controlled by foot treadle, and on walking agricultural machine, the clutch of clutch is controlled by operating handle, utilize lever or push rod to realize the clutch of clutch, like this will be because of because arm-rest of farm machinery is far from agricultural machinery body distance, cause operating handle very long, use need to be very large steering force, simultaneously, in use because causing control system gap, the reasons such as friction increase, under identical stroke, friction clutch in use combination force reduces seriously, even there is the not enough situation of combination force, therefore need regularly control system to be carried out to gap adjustment.
Chinese patent notice of authorization number: CN201575083U, on September 8 2010 notice of authorization day, discloses a kind of tractor clutch, comprises shell, smooth block, shift level, installs ball bearing on smooth block 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 side of being respectively equipped with, shell two ends 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, and the connection of slide block circular channel, wherein lays a shift level, 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 by be pressed in shift level side steel ball, be pressed in spring on steel column and the clamping bolt of fixing spring forms, 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.Its deficiency is while realizing the clutch of tractor clutch by operating mechanism, needs larger steering force, uses inconvenient.
Model utility content
The utility model needs very large steering force in order to overcome clutch of the prior art when handling, use inconvenient deficiency, the separation, the connection that provide the less steering force of a kind of use just can realize clutch, handle more laborsaving, walking agricultural machine hydraulic coupling easily.
To achieve these goals, the utility model adopts following technological scheme:
A kind of walking agricultural machine hydraulic coupling, comprise oil pump, the clutch body being connected with oil pump one end, in oil pump, be provided with the axis hole running through, in axis hole, be provided with the pinion carrier being connected with engine output shaft, in oil pump, be also provided with pinion carrier engagement and for driving the driven gear of oil pump work, in oil pump, be provided with oil hydraulic cylinder with the opposite end of engine output shaft, in oil hydraulic cylinder, be provided with the hydraulic pressure cavity of an end opening, described hydraulic pressure cavity is communicated with oil pump, in hydraulic pressure cavity, be provided with piston, clutch body is connected to the outer end of oil hydraulic cylinder, the outer end of piston is connected with clutch body contact, in described oil hydraulic cylinder, be also provided with the oil-discharging circuit being communicated with hydraulic pressure cavity, the side of described oil pump is provided with the on-off control mechanism of 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, thereby realize oil pump, constantly the fluid in gearbox is supplied in hydraulic pressure cavity, because oil-discharging circuit is in folding condition, 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 to be the transmission of power of engine output shaft during to speed changer, 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, thereby make piston movement, the action of promotion clutch body, realize the power combination in clutch body, realize transmission of power, when needs power disconnects, after oil-discharging circuit being disconnected, fluid is discharged unloading pressure and is realized the disconnection that power connects, the steering force of the power clutch in whole clutch body is all provided by engine output shaft, and as long as operator is by changing the connection of oil-discharging circuit, disconnect this two states 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, is located at the operating handle in operating rod bearing, the control frame of control operating handle, in described operating rod bearing, be provided with the oil-discharging cavity that oil-discharging circuit is communicated with, 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 being communicated with center hole, and the opening of center hole is communicated with gearbox.By rotating operating handle, realize connection and the disconnection of oil-discharging circuit, under nature, oil drainage hole is communicated with oil-discharging circuit to be communicated with center hole, and the opening of center hole is communicated with gearbox, therefore the fluid in hydraulic pressure cavity passes through oil-discharging circuit successively, oil drainage hole, center hole is got back in gearbox, now clutch is in disconnecting power coupled condition, when needs clutch is during in conjunction with transferring power, rotate control frame, spacing after an angle of drive operating handle rotation, thereby 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 combination.
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, thereby make oil drainage hole be communicated with unloading fluid with oil-discharging circuit, realize clutch power 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 that fluid from leaking out from handling the outer end of seat.
As preferably, on described oil hydraulic cylinder, be also provided with Decompression valves, the inner of Decompression valves is communicated with hydraulic pressure cavity, and the outer end of Decompression valves is connected with gearbox by connecting tube.In order to guarantee after the complete combination of each clutch, piston is identical to the pressure of clutch body, Decompression valves is set on oil hydraulic cylinder, each when clutch is during completely in conjunction with rear stable transferring power afterwards, fluid in hydraulic pressure cavity is identical during to the pressure of piston, the setting pressure that is the pressure received of piston and Decompression valves is identical, when oil pump continues to pump into fluid in hydraulic pressure cavity, the pressure that now pressure in hydraulic pressure cavity is set higher than Decompression valves, fluid enters in gearbox from Decompression valves, thereby keeps the steady pressure in hydraulic pressure cavity.
As preferably, described clutch body comprises clutch housing, is located at the clutch spindle in clutch housing, the clutch follower corresponding with clutch spindle, between described clutch spindle and clutch follower, be respectively equipped with rotating plate, the driven plate of clutch mutually, between rotating plate and driven plate, be provided with reset pad, the outer end of described rotating plate is provided with thrust-bearing, and the outer end of described thrust-bearing compresses and contacts with the outer end 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, thereby rotating plate compresses driven plate, thereby realizing clutch spindle is connected with the power between clutch follower, when oil-discharging circuit is communicated with, load on rotating plate removes, rotating plate and thrust-bearing reset under the effect of reset pad, thereby the power of realizing 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, is provided with the open conical sleeve being 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.Fluid in gearbox enters between oil pump by the filtration of oil filter, prevents that impurity, the particulate material in fluid from entering in hydraulic pressure cavity, causes stopping up and affects the stability of clutch.
Therefore, the utlity model 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 utility model, driven plate, piston can, automatically according to abrasion condition adjustment stroke, keep stable between rotating plate, driven plate, reliable combination force, thereby make overall structure performance more stable.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 be in the utility model clutch body in separated state schematic diagram.
Fig. 3 be in the utility model clutch body in bonding state schematic diagram.
Fig. 4 is overall structure schematic diagram of the present utility model.
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 reset 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 shafts 33.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further described:
A kind of walking agricultural machine hydraulic coupling as shown in Figure 1, comprises oil pump 1, the clutch body 2 being connected with oil pump one end, and 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, in oil pump 1, be provided with the axis hole 3 running through, in axis hole 3, be provided with the pinion carrier 4 being connected with engine output shaft 32, in oil pump 1, be also provided with pinion carrier 4 engagements and for driving the driven gear 5 of oil pump 1 work, in oil pump 1, be provided with oil hydraulic cylinder 6 with the opposite end of engine output shaft, in oil hydraulic cylinder 6, be provided with the hydraulic pressure cavity 7 of lower ending opening, hydraulic pressure cavity 7 is communicated with oil pump 1, in hydraulic pressure cavity 7, be provided with piston 8, clutch body 2 is connected with the lower end outside screw of oil hydraulic cylinder 6 by clutch connecting sleeve 31, 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, between clutch spindle 21 and clutch follower 22, be respectively equipped with the rotating plate 23 of clutch mutually, driven plate 24, between rotating plate 23 and driven plate 24, be provided with reset pad 25, 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 and contacts with the lower end of piston 8, in oil hydraulic cylinder 6, be also provided with the oil-discharging circuit 9 being communicated with hydraulic pressure cavity 7, the side of oil pump 1 is provided with the on-off control mechanism 10 of 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, in operating rod bearing 11, be provided with the oil-discharging cavity 14 that oil-discharging circuit is communicated with, 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 being 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 passing through oil inlet pipe 30 successively, oil filter 29, oil pump, in hydraulic pressure cavity, fluid is pumped in hydraulic pressure cavity endlessly, fluid in hydraulic pressure cavity enters in center hole again from oil-discharging circuit, then from the opening end of center hole, get back in gearbox, now piston is not mobile, clutch spindle 21 in clutch body 2 and clutch follower 22 are in separated state, power cannot transmit, when needs clutch is during in conjunction with transferring power, only control frame need to be rotated to an angle 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 in hydraulic pressure cavity increases, the piston drive thrust-bearing that moves down slowly moves down, thereby rotating plate compresses and contacts the transmission of power of clutch spindle to clutch follower with driven plate, realize transmission of power, pressure in hydraulic pressure cavity reaches the setting pressure of Decompression valves, unnecessary fluid can flow out and enter in gearbox from Decompression valves again, thereby the pressure that keeps piston at every turn to receive is identical, when needs power separates, the spacing of control frame unclamped, operating handle rotates after an angle under the effect of torsion spring, just in time oil drainage hole is communicated with to pressure release with oil-discharging circuit.From aforesaid operations process, obviously can find out, 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, when between rotating plate and driven plate, because rub, attenuation produces micro-gap, in power combination, after piston pressurized, can automatically increase the displacement corresponding with this gap, can not affect because of the gap of friction, wearing and tearing generation the combination force of clutch, use is more reliable, stable, and working life is also longer.
In the present embodiment, between the outer end of operating handle 12 and operating rod bearing 12, be provided with seal ring 18, on oil hydraulic cylinder 6, be 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 that fluid from leaking out from handling the outer end of seat; Clutch spindle 21 coaxially distributes with engine output shaft 32, clutch spindle 21 is provided with taper hole 27 near the end of engine output shaft one end, in taper hole 27, be provided with the open conical sleeve 28 being connected with engine spindle, engine output shaft is connected with clutch spindle by open conical sleeve, connect very convenient, simultaneously also stable, reliable.Therefore, the utlity model 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 utility model, driven plate, piston can, automatically according to abrasion condition adjustment stroke, keep stable between rotating plate, driven plate, reliable combination force, thereby make overall structure performance more stable.
Claims (8)
1. a walking agricultural machine hydraulic coupling, it is characterized in that, comprise oil pump (1), the clutch body (2) being connected with oil pump one end, in oil pump (1), be provided with the axis hole (3) running through, in axis hole (3), be provided with the pinion carrier (4) being connected with engine output shaft (32), in oil pump (1), be also provided with pinion carrier (4) engagement and for driving the driven gear (5) of oil pump (1) work, oil pump (1) opposite end upper and engine output shaft is provided with oil hydraulic cylinder (6), in oil hydraulic cylinder (6), be provided with the hydraulic pressure cavity (7) of an end opening, described hydraulic pressure cavity (7) is communicated with oil pump (1), in hydraulic pressure cavity (7), be provided with piston (8), clutch body (2) is connected to the outer end of oil hydraulic cylinder (6), the outer end of piston (8) is connected with clutch body (2) contact, in described oil hydraulic cylinder (6), be also provided with the oil-discharging circuit (9) being communicated with hydraulic pressure cavity (7), the side of described oil pump (1) is provided with the on-off control mechanism (10) of controlling oil-discharging circuit break-make.
2. walking agricultural machine hydraulic coupling according to claim 1, it is characterized in that, 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, in described operating rod bearing (11), be provided with the oil-discharging cavity (14) that oil-discharging circuit is communicated with, 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) being communicated with center hole, the opening of center hole (15) is communicated with gearbox.
3. walking agricultural machine hydraulic coupling according to claim 2, 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).
4. according to the walking agricultural machine hydraulic coupling described in claim 2 or 3, it is characterized in that, between the outer end of described operating handle (12) and operating rod bearing (12), be provided with seal ring (18).
5. walking agricultural machine hydraulic coupling according to claim 1 and 2, it is characterized in that, on described oil hydraulic cylinder (6), be also provided with Decompression valves (19), 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.
6. walking agricultural machine hydraulic coupling 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, between described clutch spindle (21) and clutch follower (22), be respectively equipped with the rotating plate (23) of clutch mutually, driven plate (24), between rotating plate (23) and driven plate (24), be provided with reset pad (25), the outer end of described rotating plate (23) is provided with thrust-bearing (26), the outer end of described thrust-bearing (26) compresses and contacts with the outer end of piston (8).
7. walking agricultural machine hydraulic coupling according to claim 6, it is characterized in that, clutch spindle (21) coaxially distributes with engine output shaft, 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) being connected with engine spindle in described taper hole (27).
8. walking agricultural machine hydraulic coupling according to claim 1, it is characterized in that, 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320413294.1U CN203453340U (en) | 2013-07-12 | 2013-07-12 | Hand-steered agricultural machine hydraulic clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320413294.1U CN203453340U (en) | 2013-07-12 | 2013-07-12 | Hand-steered agricultural machine hydraulic clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203453340U true CN203453340U (en) | 2014-02-26 |
Family
ID=50133215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320413294.1U Ceased CN203453340U (en) | 2013-07-12 | 2013-07-12 | Hand-steered agricultural machine hydraulic clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203453340U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410883A (en) * | 2013-07-12 | 2013-11-27 | 永康市宏跃动力机械有限公司 | Handheld agricultural machine hydraulic clutch |
-
2013
- 2013-07-12 CN CN201320413294.1U patent/CN203453340U/en not_active Ceased
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410883A (en) * | 2013-07-12 | 2013-11-27 | 永康市宏跃动力机械有限公司 | Handheld agricultural machine hydraulic clutch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20161128 Decision number of declaring invalidation: 30602 Granted publication date: 20140226 |
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| IW01 | Full invalidation of patent right |