CN1080986C - Lifting device - Google Patents
Lifting device Download PDFInfo
- Publication number
- CN1080986C CN1080986C CN94110709A CN94110709A CN1080986C CN 1080986 C CN1080986 C CN 1080986C CN 94110709 A CN94110709 A CN 94110709A CN 94110709 A CN94110709 A CN 94110709A CN 1080986 C CN1080986 C CN 1080986C
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- Prior art keywords
- rotary valve
- distributor
- oil
- hole
- fuel tank
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- Expired - Fee Related
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- Lifting Devices For Agricultural Implements (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The present invention relates to a novel lifting device for a hydraulic lifting system of a tractor. Great improvement is carried out to an original lifting device, an oil cylinder is arranged on a shell, an oil tank is separated from the shell, an inner lifting arm and an outer lifting arm are integrally arranged, and a positioning mechanism, etc., are greatly improved. Thus, the present invention has the advantages of simple structure, few parts and components, good machining manufacturability, light weight, stable performance, low cost and convenient repair and use.
Description
The present invention is a kind of novel lifter that is used for the tractor hydraulic elevator system.
The present lifter that uses of tractor hydraulic elevator system because cylinder and housing are two parts, is installed improperly, easily causes the phenomenon of taking blame for others; Oil cylinder unloads oilhole and causes quiet heavy value big greatly, and lift arm mechanism is inside and outside lift arm, and therefore dispenser assembly and detent mechanism complexity cause volume big, and parts are many in addition, and processing is inconvenient, Heavy Weight, cost height, unstable properties.
The purpose of this invention is to provide a kind of simple in structure, stable performance, volume is little, in light weight, parts are few in addition, processing technology good, cost is low, uses novel lifter easy to maintenance.
The object of the present invention is achieved like this: it is by housing, piston, connecting rod, detent mechanism, the lift arm assembly, lift shaft, fuel tank, dispenser assembly, the novel lifter that safety valve is formed, housing of the present invention is provided with oil cylinder, upgrade block, positioning seat, distributor socket, oil cylinder is at the middle part of housing, upgrade block, positioning seat is located at an end of cylinder ports, distributor socket is at the other end of oil cylinder, the lift arm assembly is installed on the upgrade block by lift shaft, detent mechanism is installed on the positioning seat, dispenser assembly is installed on the distributor socket, piston is installed in the oil cylinder, one end of connecting rod is connected with piston, the other end is inserted in the crank-guide way of connecting lever of lift arm assembly, and be connected with connecting lever, fuel tank is fixed on the housing, the oilhole that unloads of oil cylinder is equipped with oil discharge pipe, the emptying pore of fuel tank passes in oil discharge pipe and the spill port of fuel tank is connected, distributor socket is provided with the safety valve boss, be provided with distributor safe oil return hole in the safety valve boss, safety valve is installed on the safety valve boss, distributor socket is provided with the distributor spill port, takes back oil pipe on the distributor spill port and is communicated with fuel tank;
Detent mechanism is made up of locating shaft, position fixing handle, locking ball, retainer spring, dog screw, and locating shaft is provided with dead slot, locking hole, working hole;
The lift arm assembly is made up of connecting lever, lift arm, and an end of connecting lever is the middle minor axis that through hole is arranged, and the other end is a semicylinder, is provided with crank-guide way in the middle of the semicylinder, and lift arm is fixed on the minor axis;
Dispenser assembly is by operator's handle, distributor body, rotary valve, the rotary valve spring, the rotary valve spring base, the rotary valve steel ball, the rotary valve seat, positioner is formed, an end that cooperates with the distributor apertures of the distributor socket of housing at rotary valve has a rotary valve hole, the rotary valve seat is installed on the rotary valve hole, and the rotary valve spring, the rotary valve spring base, the rotary valve steel ball is pressed in the rotary valve hole, on rotary valve, also be provided with the rotary valve oil outlet, the rotary valve spill port, rotary valve unloads oilhole, and communicate with the rotary valve hole, be provided with the rotary valve oil-recovery tank in the outside of rotary valve, between control crank and distributor body, be provided with positioner.
That is to say that the present invention is under the constant substantially situation of the function of former lifter and operation principle, and former lifter is improved; Oil cylinder and housing are designed to one, and oil cylinder is at the middle part of housing, and the upgrade block on the procapsid, positioning seat are at an end of cylinder ports, and distributor socket is at the other end; Lift arm assembly, detent mechanism, dispenser assembly are installed in respectively on upgrade block, positioning seat, the distributor socket; Former inside and outside lift arm is changed into one, i.e. lift arm, lift arm is provided with crank-guide way, and the connecting rod on the in-oil cylinder piston is inserted in the crank-guide way; Can make so simple in structure, volume is little, and is in light weight, can reduce cost.Again the procapsid top tank is separated with housing, but still be fixed on the housing, fuel tank can be made with metal sheet or industrial plastic, can make housing simple, weight reduction greatly, the processing technology of housing is good, dispenser assembly improves its structure and rotary valve oil duct, and detent mechanism has adopted location guiding principle ball and locating hole location, makes structure more reasonable, simply, improve the stability of performance.
Introduce the present invention in detail below in conjunction with accompanying drawing:
Fig. 1: schematic diagram of the present invention;
Fig. 2: vertical view of the present invention;
Fig. 3: housing schematic diagram;
Fig. 4: housing vertical view;
Fig. 5: detent mechanism schematic diagram;
Fig. 6: lift arm assembly schematic diagram;
Fig. 7: lift arm assembly A-A cutaway view;
Fig. 8: lift arm assembly end view;
Fig. 9: fuel tank schematic diagram;
Figure 10: fuel tank vertical view;
Figure 11: tank side view;
Figure 12: locating shaft schematic diagram;
Figure 13: locating shaft B-B cutaway view;
Figure 14: dispenser assembly schematic diagram;
Figure 15: rotary valve schematic diagram;
Figure 16: rotary valve C-C cutaway view;
Figure 17: the present invention saves the dispenser assembly schematic diagram.
The present invention is made up of housing 1, piston 2, connecting rod 3, detent mechanism 4, lift arm assembly 5, lift shaft 11, fuel tank 6, dispenser assembly 10, safety valve 7 etc.
Housing 1 (seeing Fig. 3, Fig. 4) is provided with oil cylinder 12, upgrade block 13, positioning seat 14, distributor socket 15, oil cylinder 12 is located at the middle part of housing 1, upgrade block 13, positioning seat 14 are located at an end of 12 mouthfuls of oil cylinders, distributor socket 15 is at the other end of oil cylinder 12, oil cylinder 12 is provided with and unloads oilhole 16, when preventing that piston 2 from moving back and forth in oil cylinder 12, unloads oilhole 16 scratch sealing rings, unload oilhole 16 and should be designed to a plurality of apertures, the present invention is the aperture of 3 Φ 2.The center of distributor socket 15 is provided with a distributor apertures 17, being provided with distributor oil outlet 21 between distributor apertures 17 and oil cylinder 12 is communicated with, also be provided with safety valve boss 20 on the distributor socket 15, distributor safe oil return hole 18 is arranged on the safety valve boss 20, safety valve 7 is installed on the safety valve boss 20, is communicated with distributor spill port 19 by distributor safe oil return hole 18; Also be provided with distributor fuel feed hole 22, distributor spill port 19 on the distributor socket 15, distributor fuel feed hole 22 1 ends are communicated with distributor apertures 17, another termination oil pipe is communicated with the tractor oil pump, and distributor spill port 19 1 ends are communicated with distributor apertures 17, and the other end takes back oil pipe 8 and is communicated with fuel tank 6.
Detent mechanism 4 (see figure 5)s are made up of locating shaft 41, position fixing handle 42, locking ball 43, retainer spring 44, dog screw 45 etc., locating shaft 41 (seeing Figure 12, Figure 13) is provided with dead slot 46 and locking hole 47, working hole 48, position fixing handle 42 is installed in an end of locating shaft 41, dog screw 45, retainer spring 44, locking ball 43 installed 24 li of locating holes on the housings 1, and positions by the locking hole on the locating shaft 41 47 or 48 pairs of detent mechanisms 4 of working hole.
Lift arm assembly 5 (seeing Fig. 6, Fig. 7, Fig. 8) is made up of connecting lever 51, lift arm 52 etc.One end of connecting lever 51 is the middle minor axis 53 that a through hole is arranged, and the other end is a semicylinder 54, and the centre of semicylinder 54 is provided with crank-guide way 55, and lift arm 52 is fixed on the minor axis 53.
Fuel tank 6 (seeing Fig. 9, Figure 10, Figure 11) is to be made by metal sheet, and also available industrial oil resistant plastics is made, and fuel tank 6 is provided with fuel tank fixing hole 61, fuel tank fixed via 62, emptying pore 63, tank drainback hole 64, flowline 65 and inlet nozzle 66.Fuel tank 6 is by fuel tank fixing hole 61, fuel tank fixed via 62 and be bolted on the housing 1, and flowline 65 is connected by the oil pump on oil pipe and the tractor.
Dispenser assembly 10 (seeing Figure 14) is by control crank 31, distributor body 32, rotary valve 33, rotary valve spring 34, rotary valve spring base 37, rotary valve steel ball 35, rotary valve seat 36, positioner 40 compositions such as grade, an end that cooperates with distributor apertures 17 at rotary valve 33, one rotary valve hole 38 is arranged, rotary valve seat 36 is installed on the rotary valve hole 38, and rotary valve spring 34, rotary valve spring base 37, rotary valve steel ball 35 is pressed in 38 li in rotary valve hole, one oilhole is arranged in the middle of the rotary valve seat 36, on rotary valve 33, also be provided with rotary valve oil outlet 71, rotary valve spill port 72, rotary valve unloads oilhole 73, and these three oilholes all communicate with rotary valve hole 38; There is rotary valve oil-recovery tank 74 to communicate in the design of the outside of rotary valve 33 with rotary valve spill port 72.Distributor body 32, control crank 31 are installed in the other end of rotary valve 33; Between control crank 31 and distributor body 32, be provided with positioner 40; Positioner 40 of the present invention is to be drilled with aperture on distributor body 32, and pack in the hole spring and steel ball are provided with locating hole on control crank 31.Dispenser assembly 10 is installed on the distributor socket 15 of housing 1 by distributor body 32.
Lift arm assembly 5 of the present invention is installed on the upgrade block 13 of housing 1 by lift shaft 11, and lift shaft 11 can be made with steel pipe; Detent mechanism 4 is installed on the positioning seat 14 of housing 1, the locating shaft 41 of detent mechanism 4 just in time tightens the connecting lever 51 of lift arm assembly 5, dispenser assembly 10 is installed on the distributor socket 15 of housing 1, piston 2 is installed in 12 li of the oil cylinders of housing 1, one end of connecting rod 3 is connected with piston 2, the other end is inserted in 55 li of the crank-guide ways of the connecting lever 51 of lift arm assembly 5, be connected with connecting lever 51, fuel tank 6 is fixed on the housing 1, oil discharge pipe 67 is equipped with in unloading of oil cylinder 12 on the oilhole 16, the emptying pore 63 of fuel tank 6 passes in oil discharge pipe 67, connects with the spill port 64 of fuel tank 6.
When the present invention works, the position fixing handle 42 of pulling detent mechanism 4, rotational positioning axle 41, make locking ball 43 head into working hole 48 on the locating shaft 41, at this moment, dead slot 46 on the locating shaft 41 moves to semicylinder 54 places of connecting lever 51, semicylinder 54, connecting rod 3 can move freely at dead slot 46 places, control crank 31 to the operating position of handling dispenser assembly 10 again makes rotary valve oil outlet 71 aim at distributor oil outlet 21, the hydraulic oil of the oil pump of tractor is through oil pipe at this moment, distributor fuel feed hole 22, distributor apertures 17, rotary valve hole 38, rotary valve seat 36, back down rotary valve steel ball 35, through rotary valve oil outlet 71, distributor oil outlet 21 enters oil cylinder 12, promote piston 2, connecting rod 3 makes lift arm 52 lifting work.When lift arm 52 rose to assigned position, what piston 2 just in time moved on to oil cylinder 12 unloaded oilhole 16, and hydraulic oil is through unloading oilhole 16, and oil discharge pipe 67 flows into fuel tanks 6.When control crank 31 moved to the idle position, rotary valve oil outlet 71 was plugged, and rotary valve spill port 72 is connected with distributor spill port 19, and hydraulic oil flows into fuel tank 6 through rotary valve spill port 72 distributor spill ports 19, oil return pipe 8.When control crank 31 moves to unloading position, rotary valve on distributor oil outlet 21 and the rotary valve 33 unloads oilhole 73 and connects, work oil flows backward to rotary valve through distributor oil outlet 21 and unloads oilhole 73, rotary valve spill port 72, rotary valve oil-recovery tank 74, distributor spill port 19 flows into fuel tank 6, when work, when oil pressure surpasses rated pressure, hydraulic oil opens the safety-valve 7, again through distributor safe oil return hole 18, distributor spill port 19, flows into fuel tank 6.
When the present invention was used to the tractor of plunger is housed, the present invention can save dispenser assembly (10), and housing (1) also can save distributor socket (15) (seeing Figure 17).The fuel feed hole of oil cylinder (12) can be directly and plunger pump connect.
The present invention is owing to carried out significant improvement to former lifter, oil cylinder and housing are integral, fuel tank adopts metal sheet or industrial oil resistant plastics to make, and separate with housing, inside and outside lift arm merges into a single whole, and the detent mechanism assembly has carried out bigger improvement, particularly dispenser assembly has carried out significant improvement, make the present invention simple in structure, stable performance, parts are few, in light weight, processing technology is good, cost is low, use is easy to maintenance.
Claims (3)
1, a kind of by housing (1), piston (2), connecting rod (3), detent mechanism (4), lift arm assembly (5), lift shaft (11), fuel tank (6), dispenser assembly (10), the novel lifter that safety valve (7) is formed, the housing (1) that it is characterized in that said novel lifter is provided with oil cylinder (12), upgrade block (13), positioning seat (14), distributor socket (15), oil cylinder (12) is at the middle part of housing (1), upgrade block (13), positioning seat (14) is located at an end of oil cylinder (12) mouth, distributor socket (15) is at the other end of oil cylinder (12), lift arm assembly (5) is installed on the upgrade block (13) by lift shaft (11), detent mechanism (4) is installed on the positioning seat (14), dispenser assembly (10) is installed on the distributor socket (15), piston (2) is installed in oil cylinder (12) lining, one end of connecting rod (3) is connected with piston (2), the other end is inserted in crank-guide way (55) lining of the connecting lever (51) of lift arm assembly (5), and be connected with connecting lever (51), fuel tank (6) is fixed on the housing (1), the oilhole (16) that unloads of oil cylinder (12) is equipped with oil discharge pipe (67), oil discharge pipe (67) passes the emptying pore (63) of fuel tank (6) and connects with the spill port (64) of fuel tank (6), distributor socket (15) is provided with safety valve boss (20), be provided with distributor safe oil return hole (18) in the safety valve boss (20), safety valve (7) is installed on the safety valve boss (20), distributor socket (15) is provided with distributor spill port (19), takes back oil pipe (8) on the distributor spill port (19) and is communicated with fuel tank (6);
Detent mechanism (4) is made up of locating shaft (41), position fixing handle (42), locking ball (43), retainer spring (44), dog screw (45), and locating shaft (41) is provided with dead slot (46), locking hole (47), working hole (48);
Lift arm assembly (5) is made up of connecting lever (51), lift arm (52), one end of connecting lever (51) is the middle minor axis (53) that through hole is arranged, the other end is semicylinder (54), is provided with crank-guide way (55) in the middle of the semicylinder (54), and lift arm (52) is fixed on the minor axis (53);
Dispenser assembly (10) is by operator's handle (31), distributor body (32), rotary valve (33), rotary valve spring (34), rotary valve spring base (37), rotary valve steel ball (35), rotary valve seat (36), positioner (40) is formed, with the end that the distributor apertures (17) of the distributor socket (15) of housing (1) cooperates one rotary valve hole (38) is arranged at rotary valve (33), rotary valve seat (36) is installed on the rotary valve hole (38), and rotary valve spring (34), rotary valve spring base (37), rotary valve steel ball (35) is pressed in lining, rotary valve hole (38), on rotary valve (33), also be provided with rotary valve oil outlet (71), rotary valve spill port (72), rotary valve unloads oilhole (73), and communicate with rotary valve hole (38), be provided with rotary valve oil-recovery tank (74) in the outside of rotary valve (33), between control crank (31) and distributor body (32), be provided with positioner (40).
2, according to the said novel lifter of claim 1, it is characterized in that said fuel tank (6) is to be made by metal sheet, also can make with industrial oil resistant plastics.
3,, it is characterized in that lift shaft (11) made by steel pipe according to the said novel lifter of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94110709A CN1080986C (en) | 1994-07-07 | 1994-07-07 | Lifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94110709A CN1080986C (en) | 1994-07-07 | 1994-07-07 | Lifting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1114716A CN1114716A (en) | 1996-01-10 |
| CN1080986C true CN1080986C (en) | 2002-03-20 |
Family
ID=5034646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94110709A Expired - Fee Related CN1080986C (en) | 1994-07-07 | 1994-07-07 | Lifting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1080986C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102771215B (en) * | 2012-06-30 | 2015-03-18 | 霍邱县夏时农机制造有限公司 | Fast cam lift |
| CN103814637B (en) * | 2014-03-14 | 2016-08-24 | 湖南长沙果福车业有限公司 | The transmission of a kind of boat tractor and lowering or hoisting gear |
| CN114873512B (en) * | 2021-02-05 | 2024-05-07 | 江苏常发农业装备股份有限公司 | Lifter shell and tractor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2033362U (en) * | 1988-08-02 | 1989-03-01 | 曹德喜 | Hydraulic self-discharging device for trailer |
-
1994
- 1994-07-07 CN CN94110709A patent/CN1080986C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2033362U (en) * | 1988-08-02 | 1989-03-01 | 曹德喜 | Hydraulic self-discharging device for trailer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1114716A (en) | 1996-01-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |