CN107777609A - A kind of adaptive variable-flow hydraulic jack - Google Patents
A kind of adaptive variable-flow hydraulic jack Download PDFInfo
- Publication number
- CN107777609A CN107777609A CN201710906865.8A CN201710906865A CN107777609A CN 107777609 A CN107777609 A CN 107777609A CN 201710906865 A CN201710906865 A CN 201710906865A CN 107777609 A CN107777609 A CN 107777609A
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- pump
- oil
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- pipe
- cylinder
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- 230000003044 adaptive effect Effects 0.000 title claims abstract description 10
- 239000000446 fuel Substances 0.000 claims abstract description 46
- 239000000945 filler Substances 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 14
- 239000000428 dust Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract description 3
- 230000006978 adaptation Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 152
- 238000010586 diagram Methods 0.000 description 20
- 239000010720 hydraulic oil Substances 0.000 description 14
- 239000002199 base oil Substances 0.000 description 7
- 230000033001 locomotion Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
- B66F3/42—Constructional features with self-contained pumps, e.g. actuated by hand
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/43—Pyrotechnical jacks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F2700/00—Lifting apparatus
- B66F2700/05—Hydraulic jacks
- B66F2700/055—Jacks with a single cylinder
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Reciprocating Pumps (AREA)
Abstract
The present invention relates to a kind of adaptive variable-flow hydraulic jack, belong to hydraulic pulling tool technical field.The present invention is using the pump core in the pump housing and pump plug come pump oil, pump spring is provided with pump plug, adjust whether pump plug participates in pump oil according to the size adaptation of external load by pump spring, have the function that to adjust fuel supply flow rate, pump core and pump plug while pump oil in unloaded or underloading, the fuel supply flow rate of hydraulic jack is big, lifting velocity is fast, pump oil pressure increase when lifting weight, pump plug is caused pump plug not moved with pump core by high pressure liquid force feed effect driving pump camber of spring, only pump core pump oil, fuel supply flow rate is small but charge oil pressure is big, weight can effectively be lifted, the present invention is simple and compact for structure, it is time saving and energy saving, lifting velocity is fast, operating efficiency is high, cost is low, easily operated use, easy popularization and application, it can be used in Mechanical Help industry and other lifting works.
Description
Technical field
The present invention relates to a kind of adaptive variable-flow hydraulic jack, belong to hydraulic pulling tool technical field.
Background technology
Jack is a kind of lifting gear, and it jacks weight to specified altitude assignment by top bracket, is mainly used in factories and miness, hands over
The departments such as logical transport are as the work such as Mechanical Help and other liftings, support.Common jack has screw jack and hydraulic pressure
Two kinds of jack, screw jack lift weight by screw thread, and feature is that simple in construction, supported weight is big, but operating cost
Power, operating efficiency are low, lifting is slow.Hydraulic jack be based on pascal's principle by press up and down depression bar make hand oil pump constantly to
Being pressed oil in oil cylinder, the weight for making piston using hydraulic power and being lifted moves upwardly together the purpose for reaching lifting weight, when
Oil return valve is opened, in-oil cylinder hydraulic oil flows back to shoe cream room under the Action of Gravity Field of weight, is fallen under the piston of weight and oil cylinder
Bottom, when lifting weight, the ratio between the piston cross-section of oil cylinder and the piston cross-section of oil pump determine weight and the application of weight
The ratio between active force in the pump core of oil pump, several tons of weight can just be lifted by manually pressing depression bar up and down, play power amplification
Effect, be compact-sized, in light weight the characteristics of hydraulic jack, be easy to carry about with one, rapid operation, stable working, have self-locking work
With the problem of being often widely used in the work of Mechanical Help, existing is that the piston cross-section of usual oil cylinder and the piston of oil pump are cut
Area ratio is fixed value, is basically unchanged in lifting process in spite of the flow of lifting weight oil pump feed, therefore hydraulic pressure
Jack lifting velocity in zero load is also very slow, and operating efficiency is very low in the case that idle stroke is larger in particularly lifting.
The content of the invention
Present invention aims at a kind of adaptive variable-flow hydraulic jack is provided, the fuel supply flow rate of hand oil pump is with lifting
The situation of weight automatically adjusts, and in unloaded or underloading, the fuel supply flow rate of hydraulic jack is very big, and lifting velocity is fast, lifts weight
When hydraulic jack fuel supply flow rate it is small but charge oil pressure is big.
The technical solution adopted by the present invention is：A kind of adaptive variable-flow hydraulic jack includes base 1, piston rod 3, oil
Cylinder 4, oil drum 5, rubber oil plug 6, top cap 7, pull bar 10, lever head 12, depression bar 13, pump core 15, pump end cap 16, pump spring 17,
Pump plug 18, the pump housing 19, logical ring 23, valve element 24, valve spring 25 and oil return valve 27；
The oil drum 5 is fixed on base 1, and oily cylinder tank filler sleeve 48 is provided with oil drum 5, and oily cylinder tank filler sleeve 48 passes through rubber oil
The sealing of plug 6, oil cylinder 4 are located in oil drum 5 and are fixed on base 1, form cavity between the two, piston rod 3 is fixed on oil cylinder 4
Interior and its upper end is stretched out in outside oil cylinder 4, and the top of piston rod 3, oil cylinder 4 and oil drum 5 is sealed by top cap 7 to be fixed；
The pump housing 19 is fixed on base 1, and pump plug 18 is fixed in the pump housing 19, and pump core 15 is fixed in pump plug 18, pump core 15
Pump spring 17 is provided between pump plug 18, is fixed between the upper end of pump plug 18 and pump core 15 by pump end cap 16, the upper end of pump core 15
It is connected with lever head 12, the one end of lever head 12 is connected with pull bar 10, and the other end is connected with depression bar 13, and pull bar 10 is fixed on bottom vertically
On seat 1；
The inner chamber of the pump housing 19 is connected by fuel sucking pipe with oil drum 5, is connected by flowline with oil cylinder 4, and oil cylinder 4 is by returning
Oil pipe is connected with oil drum 5, and valve element 24, valve spring 25 are equipped with the oil suction mouth of pipe 36 of fuel sucking pipe and the fuel-displaced mouth of pipe 37 of flowline
The component formed with logical ring 23, oil return valve 27 is provided with the oil return mouth of pipe 38 of oil return pipe；Fuel sucking pipe, flowline and oil return pipe are equal
In base 1, wherein flowline connects with fuel sucking pipe and flowline is located at the lower section of fuel sucking pipe, and oil return pipe connects with flowline
It is logical.
Further, top cap sealing 9 is provided between the top cap 7 and piston rod 3, is provided between top cap 7 and oil drum 5 anti-
Dirt sealing 8；Piston seal 2, the cylindrical sealing of pump plug of the lower end of pump plug 18 are provided with the piston seal groove 41 of the bottom of piston rod 3
Sealing I20 and pump seal II21 is respectively equipped with groove 75 and pump plug endoporus seal groove 77；The end of the fuel sucking pipe and flowline
Sealed by plug 22.
Further, it is articulated and connected fixation by pin I11 between the pull bar 10 and lever head 12, the lever head 12
It is articulated and connected fixation by pin II14 with pump core 15, depression bar 13 above puies forward and pushed the raising and lowering for driving pump core 15；Its
In one group of component by valve element 24, valve spring 25, logical ring 23 the connection side for being set in sequence in the oil suction mouth of pipe 36 and oil drum 5, wherein
Logical ring 23 is nearest apart from the oil suction mouth of pipe 36, and another group of component is set in sequence in the fuel-displaced mouth of pipe by valve spring 25, valve element 24, logical ring 23
37 is nearest apart from the fuel-displaced mouth of pipe 37 with the connectivity part of oil cylinder 4, its medium through ring 23.
The present invention operation principle be：Hydraulic oil is added in oil drum 5 by oily cylinder tank filler sleeve 48, volume read-out is to low
In the oily opening position of cylinder tank filler sleeve 48, filled in oily cylinder tank filler sleeve 48 and sealed with rubber oil plug 6, tightened oil return valve 27 and cause oil
The valve termination conical surface 91 compress the base oil return mouth of pipe 38 block hydraulic oil from oil cylinder 4 oil return into oil drum 5.When being lifted up pressing
Bar 13 drives pump core 15 to drive pump end cap 16 and pump plug 18 to move upwards simultaneously when moving upwards, and hydraulic oil is inhaled from oil drum 5
Oil, push the valve element 24 at the base oil suction mouth of pipe 36 open under air negative pressure effect and suck in the inner chamber of the pump housing 19；When being pressed downward
When the drive of dynamic pressure bar 13 pump core 15 moves downward, pump core 15 pushes pump spring 17, and the promotion pump plug 18 of pump spring 17 is also transported downwards
It is dynamic, hydraulic oil is extruded the pump housing 19, at this moment the valve element 24 at the base oil suction mouth of pipe 36 is pressed to base oil suction by oil pressure effect
On the mouth of pipe 36, prevent hydraulic oil from being back in oil drum 5, on the other hand pushed open by oil pressure acting hydraulic oil in the fuel-displaced mouth of pipe of base
Valve element 24 at 37 enters in the inner chamber of oil cylinder 4, promotes piston rod 3 to move upwards, is pressurizeed downwards under the conditions of unloaded or underloading
Pump core 15 and pump plug 18 during hydraulic oil in the pump housing 19 move downward simultaneously, pump core 15 and the pump oil, therefore fuel feeding simultaneously of pump plug 18
Flow make it that greatly 3 upward movement velocity of piston rod is fast, efficiency is very high, and when lifting weight, pressurization makes pump core 15 transport downwards downwards
It is dynamic, the stress deformation of pump spring 17 is promoted because pump plug 18 is acted on by high pressure liquid force feed, pump plug 18 does not follow pump core 15 accordingly
Move downward, only the pump oil of pump core 15, therefore fuel supply flow rate is small but charge oil pressure is big, can effectively lift weight.When release oil return
Valve 27 causes the fuel tap termination conical surface 91 to leave the base oil return mouth of pipe 38, the hydraulic pressure oil stream under the Action of Gravity Field of weight in oil cylinder 4
Return in oil drum 5, weight and the bottom that oil cylinder 4 is fallen under piston rod 3.
The beneficial effects of the invention are as follows：It is characteristic of the invention that adaptively adjusted with lifting weight size cases by pump spring
The pressurization for saving pump plug adjusts fuel supply flow rate, pump core and pump plug pump oil simultaneously, fuel supply flow rate under the conditions of unloaded or underloading
Greatly, the upward movement velocity of piston rod is fast, efficiency high, there was only pump core when lifting weight in pump oil, and fuel supply flow rate is small but fuel feeding pressure
Power is big, can effectively lift weight, the present invention is simple and compact for structure, time saving and energy saving, lifting velocity is fast, operating efficiency is high, cost is low,
Easily operated use, easy popularization and application, can be used in Mechanical Help industry and other lifting works.
Brief description of the drawings
Fig. 1 is schematic diagram of the present invention；
Fig. 2 is schematic appearance of the present invention；
Fig. 3 is the oil pump structure schematic diagram of the present invention；
Fig. 4 is the one-way valve structures schematic diagram of the present invention；
Fig. 5 is the oil returning valve structure schematic diagram of the present invention；
Fig. 6 is the base schematic diagram of the present invention；
Fig. 7 is the piston rod schematic diagram of the present invention；
Fig. 8 is the oil cylinder schematic diagram of the present invention；
Fig. 9 is the oil drum schematic diagram of the present invention；
Figure 10 is the top cap schematic diagram of the present invention；
Figure 11 is the pull bar schematic diagram of the present invention；
Figure 12 is the lever head schematic diagram of the present invention；
Figure 13 is the pump core schematic diagram of the present invention；
Figure 14 is the pump end cap schematic diagram of the present invention；
Figure 15 is the pump spring schematic diagram of the present invention；
Figure 16 is the pump plug schematic diagram of the present invention；
Figure 17 is the pump housing schematic diagram of the present invention；
Figure 18 is the plug schematic diagram of the present invention；
Figure 19 is the logical ring schematic diagram of the present invention；
Figure 20 is the valve element schematic diagram of the present invention；
Figure 21 is the oil return valve schematic diagram of the present invention；
Each label in figure, 1- bases, 2- piston seals, 3- piston rods, 4- oil cylinders, 5- oil drums, 6- rubber oil plugs, 7- top caps,
8- dust seals, the sealing of 9- top caps, 10- pull bars, 11- pin I, 12- lever head, 13- depression bars, 14- pin II, 15- pump core,
The logical ring of 16- pumps end cap, 17- pump springs, 18- pump plugs, the 19- pump housings, 20- pump seal I, 21- pump seal II, 22- plug, 23-,
24- valve elements, 25- valve springs, 26- rubber rings, 27- oil return valves, 28- oil cylinders kerve, 29- oil cylinders kerve, 30- bases pin-and-hole, 31- pumps
Body kerve, 32- oil suction pipe plugs screw, the fuel-displaced pipe plug screws of 33-, 34- oil suction tube through ring screw, the fuel-displaced tube through ring spiral shells of 35-
Hole, the 36- oil suctions mouth of pipe, the fuel-displaced mouths of pipe of 37-, the 38- oil returns mouth of pipe, 39- oil return pipe fuel taps screw, the 40- pistons face of cylinder, 41- live
Fill in seal groove, 42- piston end surfaces, 43- piston-top surfaces, 44- cylinder bores, 45- oil cylinders termination, 46- oil cylinders external cylindrical surface, 47-
Oily cylinder termination, 48- oil cylinders tank filler sleeve, 49- oil cylinders internal thread hole, 50- top caps endoporus, 51- top caps seal groove, the outer spiral shell of 52- top caps
Line face, 53- top caps spacing hole, 54- top caps stepped hole, 55- pull bar pin-and-hole I, 56- pull bar termination groove I, 57- pull bar termination grooves II,
58- pull bar pin-and-hole II, 59- lever heads endoporus, 60- lever head pin-and-hole I, 61- lever heads connecting plate, 62- lever head pin-and-holes II,
63- pump cores pin-and-hole, the 64- pump core boss face of cylinder, 65- pump cores raised head face, the 66- pump cores face of cylinder, 67- pump cores end face, 68- ends
Lid external screw thread face, 69- end caps endoporus, 70- pump springs end face I, 71- pump spring end face II, 72- pump plug internal thread hole, 73- pump plug imperial palaces
Hole, 74- pump plugs external cylindrical surface, the cylindrical seal groove of 75- pump plugs, 76- pump plugs outer face, 77- pump plug endoporus seal groove, 78- pump plugs
Small inner hole surface, 79- pump housings termination, 80- pump housings inner hole surface, 81- plug external screw threads face, the logical ring external screw thread faces of 82-, 83- lead in ring
The hole mouth of pipe, 84- valve elements bulb, 85- valve elements oil-through-hole, 86- valve elements endoporus, 89- fuel tap external screw threads face, 90- fuel taps seal groove,
The 91- fuel taps termination conical surface.
Embodiment
With reference to the accompanying drawings and examples, the invention will be further described, but present disclosure be not limited to it is described
Scope.
Embodiment 1：As shown in figures 1 to 6, a kind of adaptive variable-flow hydraulic jack includes base 1, piston rod 3, oil cylinder
4th, oil drum 5, rubber oil plug 6, top cap 7, pull bar 10, lever head 12, depression bar 13, pump core 15, pump end cap 16, pump spring 17, pump
Plug 18, the pump housing 19, logical ring 23, valve element 24, valve spring 25 and oil return valve 27.
The oil drum 5 is fixed on base 1, and oily cylinder tank filler sleeve 48 is provided with oil drum 5, and oily cylinder tank filler sleeve 48 passes through rubber
Glue plug cock 6 seals, and oil cylinder 4 is located in oil drum 5 and is fixed on base 1, and piston rod 3 is fixed in oil cylinder 4 and its upper end is stretched
Outside for oil cylinder 4, the top of piston rod 3, oil cylinder 4 and oil drum 5 is sealed by top cap 7 to be fixed.
The pump housing 19 is fixed on base 1, and pump plug 18 is fixed in the pump housing 19, and pump core 15 is fixed in pump plug 18, pump
Pump spring 17 is provided between core 15 and pump plug 18, is fixed between the upper end of pump plug 18 and pump core 15 by pump end cap 16, pump core 15
Upper end is connected with lever head 12, and the one end of lever head 12 is connected with pull bar 10, and the other end is connected with depression bar 13, and pull bar 10 is fixed vertically
On base 1.
The inner chamber of the pump housing 19 is connected by fuel sucking pipe with oil drum 5, is connected by flowline with oil cylinder 4, and oil cylinder 4 is logical
Cross oil return pipe with oil drum 5 to be connected, valve element 24, valve are equipped with the oil suction mouth of pipe 36 of fuel sucking pipe and the fuel-displaced mouth of pipe 37 of flowline
The component that spring 25 and logical ring 23 are formed, oil return valve 27 is provided with the oil return mouth of pipe 38 of oil return pipe；Fuel sucking pipe, flowline and oil return
Pipe is respectively positioned in base 1.
Top cap sealing 9 is provided with wherein between top cap 7 and piston rod 3, dust seal 8 is provided between top cap 7 and oil drum 5；
Piston seal 2 is provided with the piston seal groove 41 of the bottom of piston rod 3, in the cylindrical seal groove 75 of pump plug and pump plug of the lower end of pump plug 18
Sealing I20 and pump seal II21 is respectively equipped with hole seal groove 77；The end of fuel sucking pipe and flowline is sealed by plug 22.
It is articulated and connected fixation by pin I11 wherein between pull bar 10 and lever head 12, the lever head 12 and pump core 15
It is articulated and connected fixation by pin II14.
Embodiment 2：The present embodiment is in addition to part same as Example 1, and each specific structure of part is as follows, such as Fig. 6
Shown, its surface of center base 1 is provided with oily cylinder kerve 28, oil cylinder kerve 29, base pin-and-hole 30, pump housing kerve 31, is gone back on fuel sucking pipe
Provided with the oil suction mouth of pipe 36, oil suction pipe plug screw 32 and oil suction tube through ring screw 34, fuel-displaced pipe plug spiral shell is additionally provided with flowline
Hole 33, fuel-displaced tube through ring screw 35 and the fuel-displaced mouth of pipe 37, the oil return mouth of pipe 38 and oil return pipe fuel tap screw 39 are additionally provided with oil return pipe；
As shown in fig. 7, piston rod 3 includes the piston face of cylinder 40, piston seal groove 41, piston end surface 42, piston-top surface 43；
As shown in figure 8, oil cylinder 4 includes cylinder bore 44, oil cylinder termination 45, oil cylinder external cylindrical surface 46；
As shown in figure 9, oil drum 5 includes oily cylinder termination 47, oily cylinder tank filler sleeve 48, oily cylinder internal thread hole 49；
As shown in Figure 10, top cap 7 include top cap endoporus 50, top cap seal groove 51, top cap external screw thread face 52, top cap spacing hole 53,
Top cap stepped hole 54；
As shown in figure 11, pull bar 10 includes pull bar pin-and-hole I55, pull bar termination groove I56, pull bar termination groove II57, pull bar pin-and-hole
II58；
As shown in figure 12, lever head 12 includes lever head endoporus 59, lever head pin-and-hole I60, lever head connecting plate 61, lever head pin
Hole II62；
As shown in figure 13, pump core 15 includes pump core pin-and-hole 63, the pump core boss face of cylinder 64, pump core raised head face 65, pump core cylinder
Face 66, pump core end face 67；
As shown in figure 14, pump end cap 16 includes end cap external screw thread face 68, end cap endoporus 69；
As shown in figure 15, pump spring 17 includes pump spring end face I70, pump spring end face II71；
As shown in figure 16, it is cylindrical to include pump plug internal thread hole 72, the big endoporus 73 of pump plug, pump plug external cylindrical surface 74, pump plug for pump plug 18
Seal groove 75, pump plug outer face 76, pump plug endoporus seal groove 77, the small inner hole surface 78 of pump plug；
As shown in figure 17, the pump housing 19 includes pump housing termination 79, pump housing inner hole surface 80；
As shown in figure 18, plug 22 includes plug external screw thread face 81；
As shown in figure 19, leading to ring 23 includes logical ring external screw thread face 82, the logical ring endoporus mouth of pipe 83；
As shown in figure 20, valve element 24 includes valve element bulb 84, valve element oil-through-hole 85, valve element endoporus 86；
As shown in figure 21, oil return valve 27 includes fuel tap external screw thread face 89, fuel tap seal groove 90, the fuel tap termination conical surface 91.
The oil cylinder termination 45 of the oil cylinder 4 is arranged in the oil cylinder kerve 29 of base 1 and is welded to connect fixation, the storage
The oily cylinder termination 47 of oily cylinder 5 is arranged in the oily cylinder kerve 28 of base 1 and is welded to connect fixation, the pump housing termination of the pump housing 19
79 are arranged in the pump housing kerve 31 of base 1 and are welded to connect fixation, top cap stepped hole 54 and the oil cylinder outside cylinder of the top cap 7
The interference fits of face 46, the gap of the piston face of cylinder 40 of top cap endoporus 50 and piston rod 3 coordinate, and the top cap sealing 9, which is set, to be fixed
In top cap seal groove 51, the oily screw thread of cylinder internal thread hole 49 with oil drum 5 after dust seal 8 is inserted on top cap external screw thread face 52
It is connected, the rubber oil plug 6 sets and is fixed in the oily cylinder tank filler sleeve 48 of oil drum 5, the piston cylinder of the piston rod 3
Face 40 coordinates with the gap of cylinder bore 44, and the piston seal 2 sets and is fixed in the piston seal groove 41 of piston rod 3, described
Sealing I20 and pump seal II21 sets the cylindrical seal groove 75 of the pump plug for being fixed on pump plug 18 and pump plug endoporus seal groove 77 respectively
In, pump spring 17 is set in the big endoporus 73 of pump plug and bottom hole is bonded with pump spring end face I70, inserting the pump core 15 makes pump core convex
You face 65 is bonded with pump spring end face II71, and the pump core face of cylinder 66 coordinates with the small gap of inner hole surface 78 of pump plug, pump core boss cylinder
Face 64 coordinates with the big gap of endoporus 73 of pump plug, the pump end cap 16 is inserted in pump core 15 through end cap endoporus 69, the end cap
External screw thread face 68 is threadedly coupled fixation with pump plug internal thread hole 72, and the pump plug 18 assembled and the component of pump core 15 are inserted pump
In internal hole face 80, pump plug external cylindrical surface 74 coordinates with the gap of pump housing inner hole surface 80, the pull bar pin-and-hole I55 of the pull bar 10 and bottom
The base pin-and-hole 30 of seat 1 is articulated and connected fixation by pin I11, the pull bar pin-and-hole II58 of the pull bar 10 and the thick stick of lever head 12
Head pin-and-hole II62 is articulated and connected fixation by another pin I11, lever head pin-and-hole I60 and the pump core 15 of the lever head 12
Pump core pin-and-hole 63 be articulated and connected fixation by pin II14, the depression bar 13 sets the lever head endoporus for being fixed on lever head 12
In 59, one group of component is set in sequence at the oil suction mouth of pipe 36 of base 1 by valve element 24, valve spring 25, logical ring 23, by logical ring outside
Flank 82 is threadedly coupled fixation with oil suction tube through ring screw 34, applies fluid sealant outside with a plug 22 and passes through plug external screw thread face
81 are threadedly coupled fixation with oil suction pipe plug screw 32, and another group of component is set in sequence in by valve spring 25, valve element 24, logical ring 23
At the fuel-displaced mouth of pipe 37 of base 1, fixation is threadedly coupled with fuel-displaced tube through ring screw 35 by logical ring external screw thread face 82, uses another
Plug 22 applies fluid sealant and fixation, the oil return valve 27 is threadedly coupled with fuel-displaced pipe plug screw 33 by plug external screw thread face 81 outside
Fuel tap seal groove 90 fixed rubber ring 26 is set after be threadedly coupled by fuel tap external screw thread face 89 with oil return pipe fuel tap screw 39
It is fixed.
The course of work of the present embodiment is：Hydraulic oil is added in oil drum 5 by oily cylinder tank filler sleeve 48, volume read-out arrives
Less than the oily opening position of cylinder tank filler sleeve 48, filled in oily cylinder tank filler sleeve 48 and sealed with rubber oil plug 6, tightened oil return valve 27 and cause
The fuel tap termination conical surface 91 compress the base oil return mouth of pipe 38 block hydraulic oil from oil cylinder 4 oil return into oil drum 5.When on depression bar 13
When carrying, drive pump core 15 to move upwards, while drive pump end cap 16 and pump plug 18 to move upwards, the valve element 24 at the oil suction mouth of pipe 36
It is open, hydraulic oil oil suction and is sucked in the inner chamber of the pump housing 19 from oil drum 5；When depression bar 13 pushes, drive pump core 15 to
Lower motion, while drive pump spring 17 to promote pump plug 18 to move downward, valve element 24 is compressed at the oil suction mouth of pipe 36, and hydraulic oil extrudes pump
Body 19 and push open the valve element 24 at the fuel-displaced mouth of pipe 37 enter oil cylinder 4 inner chamber in, promote piston rod 3 move upwards.In zero load
Or pump core 15 under the conditions of underloading during downward pressurized hydraulic oil in the pump housing 19 and pump plug 18 move downward simultaneously, the He of pump core end face 67
The pump oil, therefore fuel supply flow rate make it that greatly 3 upward movement velocity of piston rod is fast, efficiency is very high, is lifting simultaneously of pump plug outer face 76
Pressurization moves downward pump core 15 downwards during weight, and pump spring 17 is promoted because pump plug outer face 76 is acted on by high pressure liquid force feed
Stress deformation, pump plug 18 do not follow accordingly pump core 15 to move downward, only the pump oil of pump core end face 67, thus fuel supply flow rate it is small but
Charge oil pressure is big, can effectively lift weight.The fuel tap termination conical surface 91 is caused to leave the base oil return mouth of pipe 38 when unclamping oil return valve 27,
Hydraulic oil under the Action of Gravity Field of weight in oil cylinder 4 is flow back into oil drum 5, weight and the bottom that oil cylinder 4 is fallen under piston rod 3
Portion.
Embodiment 3：The present embodiment structure is with embodiment 1, wherein according to actual requirement additional adjusting screw rod can be installed, the present invention is
Adjust whether pump plug 18 participates in pump oil according to the size adaptation of external load by pump spring 17, reach regulation fuel supply flow rate
Effect, therefore the spring rate of pump spring 17 can determine according to actual requirement.
Above in conjunction with accompanying drawing to the present invention embodiment be explained in detail, but the present invention be not limited to it is above-mentioned
Embodiment, can also be before present inventive concept not be departed from those of ordinary skill in the art's possessed knowledge
Put that various changes can be made.
Claims (3)
- A kind of 1. adaptive variable-flow hydraulic jack, it is characterised in that：Including base（1）, piston rod（3）, oil cylinder（4）, storage Oily cylinder（5）, rubber oil plug（6）, top cap（7）, pull bar（10）, lever head（12）, depression bar（13）, pump core（15）, pump end cap（16）、 Pump spring（17）, pump plug（18）, the pump housing（19）, logical ring（23）, valve element（24）, valve spring（25）And oil return valve（27）；The oil drum（5）It is fixed on base（1）On, oil drum（5）On be provided with oily cylinder tank filler sleeve（48）, oily cylinder tank filler sleeve（48） Pass through rubber oil plug（6）Sealing, oil cylinder（4）Positioned at oil drum（5）It is interior and be fixed on base（1）On, cavity is formed between the two, Piston rod（3）It is fixed on oil cylinder（4）Interior and its upper end stretches out in oil cylinder（4）Outside, piston rod（3）, oil cylinder（4）And oil drum（5） Top pass through top cap（7）Sealing is fixed；The pump housing（19）It is fixed on base（1）On, pump plug（18）It is fixed on the pump housing（19）In, pump core（15）It is fixed on pump plug （18）In, pump core（15）With pump plug（18）Between be provided with pump spring（17）, pump plug（18）Upper end and pump core（15）Between pass through Pump end cap（16）It is fixed, pump core（15）Upper end and lever head（12）Connection, lever head（12）One end and pull bar（10）Connection, it is another End and depression bar（13）Connection, pull bar（10）It is fixed on base vertically（1）On；The pump housing（19）Inner chamber pass through fuel sucking pipe and oil drum（5）It is connected, passes through flowline and oil cylinder（4）It is connected, oil cylinder （4）Pass through oil return pipe and oil drum（5）It is connected, the oil suction mouth of pipe of fuel sucking pipe（36）With the fuel-displaced mouth of pipe of flowline（37）Place is all provided with There is valve element（24）, valve spring（25）With logical ring（23）The component of composition, the oil return mouth of pipe of oil return pipe（38）Place is provided with oil return valve （27）；Fuel sucking pipe, flowline and oil return pipe are respectively positioned on base（1）Interior, wherein flowline connects with fuel sucking pipe and flowline is located at The lower section of fuel sucking pipe, oil return pipe connect with flowline.
- 2. adaptive variable-flow hydraulic jack according to claim 1, it is characterised in that：The top cap（7）With piston Bar（3）Between be provided with top cap seal（9）, top cap（7）With oil drum（5）Between be provided with dust seal（8）；The piston rod（3）The piston seal groove of bottom（41）In be provided with piston seal（2）, pump plug（18）The pump plug of lower end is cylindrical Seal groove（75）With pump plug endoporus seal groove（77）In be respectively equipped with sealing I（20）With pump seal II（21）；The end of the fuel sucking pipe and flowline passes through plug（22）Sealing.
- 3. adaptive variable-flow hydraulic jack according to claim 1, it is characterised in that：The pull bar（10）With lever Head（12）Between pass through pin I（11）Be articulated and connected fixation, the lever head（12）With pump core（15）Pass through pin II（14）Hinge Connect and be connected, depression bar（13）Above put forward and push drive pump core（15）Raising and lowering；One of which component presses valve element （24）, valve spring（25）, logical ring（23）Be set in sequence in the oil suction mouth of pipe（36）With oil drum（5）Connection side, its medium through ring （23）Apart from the oil suction mouth of pipe（36）Recently, another group of component presses valve spring（25）, valve element（24）, logical ring（23）Be set in sequence in out Oil pipe mouth（37）With oil cylinder（4）Connectivity part, its medium through ring（23）Apart from the fuel-displaced mouth of pipe（37）Recently.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710906865.8A CN107777609A (en) | 2017-09-29 | 2017-09-29 | A kind of adaptive variable-flow hydraulic jack |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710906865.8A CN107777609A (en) | 2017-09-29 | 2017-09-29 | A kind of adaptive variable-flow hydraulic jack |
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| Publication Number | Publication Date |
|---|---|
| CN107777609A true CN107777609A (en) | 2018-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710906865.8A Pending CN107777609A (en) | 2017-09-29 | 2017-09-29 | A kind of adaptive variable-flow hydraulic jack |
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| CN (1) | CN107777609A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109368532A (en) * | 2018-11-30 | 2019-02-22 | 安庆市睿霞机械有限公司 | A kind of attachment device of jack |
| CN110356994A (en) * | 2019-07-11 | 2019-10-22 | 赵泉 | A kind of hand-hydraulic is very heavy to be hung |
| CN110566427A (en) * | 2019-09-24 | 2019-12-13 | 常熟通润汽车零部件股份有限公司 | Large-tonnage vertical hydraulic jack pump body capable of being lifted quickly in no-load mode |
| CN111498726A (en) * | 2020-05-29 | 2020-08-07 | 嘉兴市大通机械股份有限公司 | Manual pressing type jack for rehabilitation hanger columnar structure |
| CN112479076A (en) * | 2020-12-09 | 2021-03-12 | 安徽蒂森五金工具有限公司 | Large-tonnage jack |
| CN113842284A (en) * | 2020-06-25 | 2021-12-28 | 吴彦民 | Medical vertical bow-shaped electric hydraulic type movable lifting bed |
| CN113893107A (en) * | 2020-06-22 | 2022-01-07 | 吴彦民 | Medical vertical bow-shaped pedal hydraulic type movable lifting bed |
| CN114955917A (en) * | 2021-02-22 | 2022-08-30 | 衢州自力机械配件有限公司 | Portable hydraulic lifting machine for automobile and use method thereof |
| CN115806250A (en) * | 2022-11-17 | 2023-03-17 | 中建八局第三建设有限公司 | Steel bridge installation height adjuster |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109368532A (en) * | 2018-11-30 | 2019-02-22 | 安庆市睿霞机械有限公司 | A kind of attachment device of jack |
| CN110356994A (en) * | 2019-07-11 | 2019-10-22 | 赵泉 | A kind of hand-hydraulic is very heavy to be hung |
| CN110566427A (en) * | 2019-09-24 | 2019-12-13 | 常熟通润汽车零部件股份有限公司 | Large-tonnage vertical hydraulic jack pump body capable of being lifted quickly in no-load mode |
| CN111498726A (en) * | 2020-05-29 | 2020-08-07 | 嘉兴市大通机械股份有限公司 | Manual pressing type jack for rehabilitation hanger columnar structure |
| CN113893107A (en) * | 2020-06-22 | 2022-01-07 | 吴彦民 | Medical vertical bow-shaped pedal hydraulic type movable lifting bed |
| CN113842284A (en) * | 2020-06-25 | 2021-12-28 | 吴彦民 | Medical vertical bow-shaped electric hydraulic type movable lifting bed |
| CN112479076A (en) * | 2020-12-09 | 2021-03-12 | 安徽蒂森五金工具有限公司 | Large-tonnage jack |
| CN114955917A (en) * | 2021-02-22 | 2022-08-30 | 衢州自力机械配件有限公司 | Portable hydraulic lifting machine for automobile and use method thereof |
| CN115806250A (en) * | 2022-11-17 | 2023-03-17 | 中建八局第三建设有限公司 | Steel bridge installation height adjuster |
| CN115806250B (en) * | 2022-11-17 | 2023-10-20 | 中建八局第三建设有限公司 | Steel bridge installation elevation regulator |
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Application publication date: 20180309 |
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