CN213416185U - Pump type electric hydraulic cylinder for forklift - Google Patents
Pump type electric hydraulic cylinder for forklift Download PDFInfo
- Publication number
- CN213416185U CN213416185U CN202022523971.8U CN202022523971U CN213416185U CN 213416185 U CN213416185 U CN 213416185U CN 202022523971 U CN202022523971 U CN 202022523971U CN 213416185 U CN213416185 U CN 213416185U
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- Prior art keywords
- oil
- hole
- valve
- pump
- communicated
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000005086 pumping Methods 0.000 claims abstract description 17
- 238000007599 discharging Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 239000003921 oil Substances 0.000 abstract description 104
- 239000010720 hydraulic oil Substances 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 7
- 230000000630 rising effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
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- Forklifts And Lifting Vehicles (AREA)
Abstract
The utility model relates to a fork truck part, especially pump formula electric hydraulic cylinder for fork truck, including motor, ejector pin device, oil discharge device, distributing valve, oil discharge valve and relief valve, still include: the oil pump comprises a cylinder body, an oil storage cavity, a hydraulic cavity, an oil way, an oil filling hole, an oil suction hole and an oil pumping hole are arranged on the cylinder body, a mandril device is arranged in the hydraulic cavity, the oil way is respectively communicated with the oil storage cavity, the hydraulic cavity, the oil filling hole and the oil suction hole, the oil pumping hole is respectively communicated with the oil filling hole and the oil suction hole, a distribution valve, an oil discharge valve and a pressure release valve are all arranged on the oil way, and the oil discharge device and a motor are all arranged on the; the driving gear is rotatably arranged in the oil pumping hole and is connected with the motor; and the driven gear is rotatably arranged in the oil pumping hole and is meshed with the driving gear. The utility model provides a pump formula electric hydraulic cylinder for fork truck with gear pump and motor integrated to the pneumatic cylinder on, compact structure, can the automatic pump go into hydraulic oil, main ejector pin rise fast and rise stably.
Description
Technical Field
The utility model relates to a fork truck part, especially pump formula electric hydraulic cylinder for fork truck.
Background
The existing forklift is manual, namely, the lifting of the main ejector rod is realized by manually pressing the pull rod, the forklift can be lifted by reciprocating for many times, the lifting speed is low, and the working efficiency is low.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, the utility model provides an adopt motor and gear pump to go into hydraulic pressure, main ejector pin rising speed is fast and rise stable pump formula electric hydraulic cylinder for fork truck, and concrete technical scheme is:
pump formula electric hydraulic cylinder for fork truck includes motor, ejector pin device, oil discharge device, distributing valve, oil discharge valve and relief valve, still includes: the oil pump comprises a cylinder body, wherein an oil storage cavity, a hydraulic cavity, an oil way, an oil filling hole, an oil suction hole and an oil pumping hole are formed in the cylinder body, the ejector rod device is installed in the hydraulic cavity, the oil way is respectively communicated with the oil storage cavity, the hydraulic cavity, the oil filling hole and the oil suction hole, the oil pumping hole is respectively communicated with the oil filling hole and the oil suction hole, a distribution valve, an oil discharge valve and a pressure release valve are all installed on the oil way, and the oil discharge device and a motor are all installed on the cylinder body; the driving gear is rotatably arranged in the oil pumping hole and is connected with the motor; and the driven gear is rotatably arranged in the oil pumping hole and is meshed with the driving gear.
Through adopting above-mentioned technical scheme, with gear pump and motor integration to the pneumatic cylinder on, make compact structure, the pressure of pump oil is big, main ejector pin rises fastly to it is stable to rise, work efficiency is high.
Further, the oil pump further comprises a support seat, wherein the support seat is installed in the oil pumping hole and is respectively positioned at the top and the bottom of the driving gear and the driven gear.
Through adopting above-mentioned technical scheme, the convenient sealed gear pump of support seat to can reduce the thickness of gear, reduce the pump oil mass, guarantee the suitable rising speed of main ejector pin.
Further, the oil path includes: a pressurizing hole communicating with the hydraulic chamber; the pressure relief hole is communicated with the oil storage cavity, and the pressure relief valve is arranged in the pressure relief hole; the communicating hole is respectively communicated with the pressure relief hole and the pressurizing hole, and a pressure relief steel ball of the pressure relief valve presses on the communicating hole; a dispensing bore in communication with the pressurization bore, the dispensing valve being mounted within the dispensing bore; the one-way valve hole is communicated with the oil filling hole and the distribution hole respectively and is coaxial, and the distribution valve is tightly pressed on the one-way valve hole; the reversing hole is communicated with the one-way valve hole and is coaxial, and an oil discharge steel ball of the oil discharge valve is movably positioned in the reversing hole; the oil discharging hole is communicated with the reversing hole and is coaxial, the oil discharging hole is communicated with the oil suction hole and the pressure relief hole, and the oil discharging valve is installed in the oil discharging hole.
Further, the oil storage chamber is located above the hydraulic chamber.
Compared with the prior art the utility model discloses following beneficial effect has:
the utility model provides a pump formula electric hydraulic cylinder for fork truck with gear pump and motor integrated to the pneumatic cylinder on, compact structure, can the automatic pump go into hydraulic oil, main ejector pin rise fast and rise stably.
Drawings
FIG. 1 is a schematic structural view of a pump type electric hydraulic cylinder for a forklift;
fig. 2 is a front view of a pump type electric cylinder for a forklift;
FIG. 3 is a cross-sectional view taken along line C-C of FIG. 2;
FIG. 4 is a schematic structural view of the pump type electric hydraulic cylinder for a forklift truck with the push rod device and the cylinder body hidden;
FIG. 5 is a schematic view of an assembled structure of the motor, the driving gear and the driven gear;
FIG. 6 is a front view of the cylinder block;
FIG. 7 is a cross-sectional view taken along line A-A of FIG. 6;
FIG. 8 is a cross-sectional view taken along line B-B of FIG. 6;
fig. 9 is a schematic structural view of the cylinder.
Detailed Description
The present invention will now be further described with reference to the accompanying drawings.
As shown in fig. 1 to 9, the pump-type electric hydraulic cylinder for a forklift includes a motor 75, a ram device, an oil discharge device, a distribution valve 6, an oil discharge valve 3, and a relief valve 5, and further includes: the cylinder body 1 is provided with an oil storage cavity 11, a hydraulic cavity 12, an oil way, an oil filling hole 22, an oil suction hole 25 and an oil pumping hole 23, a mandril device is arranged in the hydraulic cavity 12, the oil way is respectively communicated with the oil storage cavity 11, the hydraulic cavity 12, the oil filling hole 22 and the oil suction hole 25, the oil pumping hole 23 is respectively communicated with the oil filling hole 22 and the oil suction hole 25, a distribution valve 6, an oil discharge valve 3 and a pressure release valve 5 are all arranged on the oil way, and the oil discharge device and a motor 75 are all arranged on the cylinder body 1; the driving gear 71 is rotatably arranged in the pump oil hole 23, and is connected with the motor 75; and the driven gear 72 is rotatably installed in the pump oil hole 23, and is meshed with the driving gear 71.
The gear pump and the motor 75 are integrated on the hydraulic cylinder, so that the structure is compact, the pressure of pump oil is high, the lifting speed of the main ejector rod is high, the lifting is stable, and the working efficiency is high.
The oil pump further comprises a bracket seat 73, wherein the bracket seat 73 is installed in the oil pumping hole 23 and is respectively positioned at the top and the bottom of the driving gear 71 and the driven gear 72.
The bracket base 73 facilitates sealing of the gear pump, can reduce the thickness of the gear, reduces the oil amount of the pump, and ensures the appropriate rising speed of the main ejector rod.
The oil circuit includes: the pressurizing hole 13, the pressurizing hole 13 communicates with hydraulic pressure chamber 12; the pressure relief hole 18 is communicated with the oil storage cavity 11, and the pressure relief valve 5 is arranged in the pressure relief hole 18; the communicating hole 21, the communicating hole 21 communicates with pressure relief hole 18 and pressurized hole 13 separately, the steel ball 51 of pressure relief valve 5 presses on the communicating hole 21; a distribution hole 14, the distribution hole 14 is communicated with the pressurizing hole 13, and the distribution valve 6 is arranged in the distribution hole 14; the one-way valve hole 15, the one-way valve hole 15 communicates with filler hole 22 and dispensing hole 14 separately, and coaxial, the dispensing valve 6 is pressed on the one-way valve hole 15; the reversing hole 16 is communicated with the one-way valve hole 15 and is coaxial, and an oil discharge steel ball 31 of the oil discharge valve 3 is movably positioned in the reversing hole 16; the oil discharge hole 17 is communicated with the reversing hole 16, the oil discharge hole 17 is communicated with the oil suction hole 25 and the pressure relief hole 18, and the oil discharge valve 3 is arranged in the oil discharge hole 17.
The pressure relief hole 18 is communicated with the oil storage chamber 11 through a connecting through hole 19.
The ejector rod device comprises a main ejector rod 9 and a sealing ring, the sealing ring is arranged in an oil storage cavity 11 and a hydraulic cavity 12, and the main ejector rod 9 is movably inserted into the sealing ring. The main ram 9 rises when the hydraulic chamber 12 is filled with oil.
The oil unloading device comprises an oil unloading plate 41 and an oil unloading rod 42, wherein the oil unloading plate 41 is rotatably arranged on the cylinder body 1, and the oil unloading rod 42 is fixed on the oil unloading plate 41 and movably pressed on the oil unloading valve 3. When oil is discharged, the oil discharge plate 41 is stepped by feet, and the main ejector rod 9 descends.
Specifically, the motor is fixed on the upper cover plate 82, the upper cover plate 82 is fixed on the cylinder block 1 and is located at the top of the pump oil hole 23 for sealing the top of the pump oil hole 23, the lower cover plate 81 is fixed on the cylinder block 1 and is located at the bottom of the pump oil hole 23 for sealing the bottom of the pump oil hole 23, and the upper cover plate 82 and the lower cover plate 81 realize the sealing of the pump oil hole 23.
In not less than one embodiment, the reservoir chamber 11 is located above the hydraulic chamber 12.
The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the claims of the present invention.
Claims (4)
1. Pump formula electric hydraulic cylinder for fork truck, including motor, ejector pin device, oil discharge device, distributing valve, oil discharge valve and relief valve, its characterized in that still includes:
the oil pump comprises a cylinder body, wherein an oil storage cavity, a hydraulic cavity, an oil way, an oil filling hole, an oil suction hole and an oil pumping hole are formed in the cylinder body, the ejector rod device is installed in the hydraulic cavity, the oil way is respectively communicated with the oil storage cavity, the hydraulic cavity, the oil filling hole and the oil suction hole, the oil pumping hole is respectively communicated with the oil filling hole and the oil suction hole, a distribution valve, an oil discharge valve and a pressure release valve are all installed on the oil way, and the oil discharge device and a motor are all installed on the cylinder body;
the driving gear is rotatably arranged in the oil pumping hole and is connected with the motor;
and the driven gear is rotatably arranged in the oil pumping hole and is meshed with the driving gear.
2. The pump-type electric cylinder for forklift according to claim 1,
the support seat is installed in the oil pumping hole and is respectively positioned at the top and the bottom of the driving gear and the driven gear.
3. The pump-type electric cylinder for forklift according to claim 1,
the oil path includes:
a pressurizing hole communicating with the hydraulic chamber;
the pressure relief hole is communicated with the oil storage cavity, and the pressure relief valve is arranged in the pressure relief hole;
the communicating hole is respectively communicated with the pressure relief hole and the pressurizing hole, and a pressure relief steel ball of the pressure relief valve presses on the communicating hole;
a dispensing bore in communication with the pressurization bore, the dispensing valve being mounted within the dispensing bore;
the one-way valve hole is communicated with the oil filling hole and the distribution hole respectively and is coaxial, and the distribution valve is tightly pressed on the one-way valve hole;
the reversing hole is communicated with the one-way valve hole and is coaxial, and an oil discharge steel ball of the oil discharge valve is movably positioned in the reversing hole;
the oil discharging hole is communicated with the reversing hole and is coaxial, the oil discharging hole is communicated with the oil suction hole and the pressure relief hole, and the oil discharging valve is installed in the oil discharging hole.
4. The pump-type electric cylinder for forklift according to claim 1,
the oil storage cavity is located above the hydraulic cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022523971.8U CN213416185U (en) | 2020-11-04 | 2020-11-04 | Pump type electric hydraulic cylinder for forklift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022523971.8U CN213416185U (en) | 2020-11-04 | 2020-11-04 | Pump type electric hydraulic cylinder for forklift |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213416185U true CN213416185U (en) | 2021-06-11 |
Family
ID=76249994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022523971.8U Expired - Fee Related CN213416185U (en) | 2020-11-04 | 2020-11-04 | Pump type electric hydraulic cylinder for forklift |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213416185U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115158452A (en) * | 2022-06-29 | 2022-10-11 | 浙江夏厦精密制造股份有限公司 | Novel steering gear in oil-electricity hybrid vehicle |
-
2020
- 2020-11-04 CN CN202022523971.8U patent/CN213416185U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115158452A (en) * | 2022-06-29 | 2022-10-11 | 浙江夏厦精密制造股份有限公司 | Novel steering gear in oil-electricity hybrid vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210611 |