CN215566963U - Electro-hydraulic integrated lifter - Google Patents
Electro-hydraulic integrated lifter Download PDFInfo
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- CN215566963U CN215566963U CN202121530912.1U CN202121530912U CN215566963U CN 215566963 U CN215566963 U CN 215566963U CN 202121530912 U CN202121530912 U CN 202121530912U CN 215566963 U CN215566963 U CN 215566963U
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Abstract
The utility model relates to an electro-hydraulic integrated lifter, which comprises an actuator, a motor, a control valve block assembly, a high-pressure miniature gear pump and an oil tank, wherein the actuator is connected with the motor through a transmission mechanism; the actuator consists of a cylinder body and a piston rod, the piston rod is positioned in the cylinder body and divides the interior of the cylinder body into a rod chamber and a rodless chamber; one end face of the oil tank is blocked by an actuator, and the other end face of the oil tank is blocked by a control valve block assembly; the output shaft of the motor is in transmission connection with a high-pressure miniature gear pump positioned in the oil tank; when the motor rotates, the high-pressure miniature gear pump can convey oil in the oil tank to the rod cavity or the rodless cavity through the control valve block assembly and the hydraulic pipeline positioned in the oil tank shell and the cylinder body, so that the piston rod can perform lifting motion in the cylinder body. The lifting device has the characteristics of compact structure, exquisite size, large lifting force, modular assembly, convenient installation, disassembly and maintenance and the like, and is particularly suitable for working conditions such as logistics AGV and shuttle vehicles which require large lifting force and are limited in height and installation space.
Description
Technical Field
The utility model relates to the technical field of hydraulic devices, in particular to an electro-hydraulic integrated lifter.
Background
AGVs, shuttles, and the like are transport vehicles equipped with an electromagnetic or optical automatic navigation device, can travel along a predetermined navigation route, and have safety protection and various transfer functions. AGV trolleys and shuttle vehicles are transport vehicles which do not need drivers in industrial application, and rechargeable storage batteries are used as power sources of the AGV trolleys and the shuttle vehicles. AGV dolly, shuttle all realize the goods transport action through the lift, but current lift all adopts split type structure because automobile body height and installation space limit, when the lift breaks down, the maintenance difficulty, and easily cause the leakage.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides an electro-hydraulic integrated lifter.
The technical scheme adopted by the utility model is as follows:
an electro-hydraulic integrated lifter comprises an actuator, a motor, a control valve block assembly, a high-pressure miniature gear pump and an oil tank; the actuator is vertically arranged and comprises a cylinder body and a piston rod, the cylinder body is hollow, the top of the cylinder body is provided with an upper end cover in threaded connection, the bottom of the cylinder body is provided with a lower end cover in bolted connection, the piston rod is positioned in the cylinder body and divides the interior of the cylinder body into a rod cavity and a rodless cavity, and the top of the piston rod penetrates through the upper end cover of the cylinder body; the oil tank is horizontally arranged, one side end face of the oil tank is connected with the actuator through a bolt and is plugged by the actuator, and the other side end face of the oil tank is connected with the control valve block assembly and is plugged by the control valve block assembly; the motor penetrates through the oil tank shell through a lengthened bolt to be fixedly connected with the cylinder body of the actuator, and an output shaft of the motor penetrates through the control valve block assembly to be in transmission connection with a high-pressure miniature gear pump positioned in the oil tank; when the motor rotates forwards or reversely, the high-pressure miniature gear pump can convey oil in the oil tank to the rod cavity or the rodless cavity through the control valve block assembly and the hydraulic pipeline positioned in the oil tank shell and the cylinder body, so that the piston rod can move up and down in the cylinder body.
Furthermore, the control valve block assembly consists of two hydraulic control one-way locks, two overflow valves and two one-way valves, and the positive rotation output end and the negative rotation output end of the high-pressure miniature gear pump can respectively convey oil to the rod cavity and the rodless cavity through the hydraulic control one-way locks, the one-way valves and the hydraulic pipelines; oil in the rod cavity and the rodless cavity can flow back to the oil tank through the two overflow valves and the hydraulic pipeline respectively.
Furthermore, the control valve block assembly also comprises two filters, and the positive rotation output end and the negative rotation output end of the high-pressure miniature gear pump can respectively convey oil to the rod cavity and the rodless cavity through the hydraulic control one-way lock, the one-way valve, the filters and the hydraulic pipeline.
Furthermore, the control valve block assembly also comprises two pressure regulating valves, the pressure regulating valves are positioned between the hydraulic control one-way lock and the one-way valve and are respectively connected with the hydraulic control one-way lock, the one-way valve and the oil tank hydraulic pipe, and the two pressure regulating valves can respectively regulate the pressure of oil conveyed to the rod chamber and the rodless chamber.
Furthermore, the hydraulic pipeline is a hole formed in the oil tank shell and the cylinder body.
Further, the top of the oil tank shell is provided with an oil filling hole which can be opened or closed.
Furthermore, the outside of the cylinder body of the actuator is also provided with a mounting flange which is integrally formed with the cylinder body or fixedly connected with the cylinder body through bolts.
Furthermore, the contact position of the piston rod, the interior of the cylinder body and the upper end cover is provided with a guide ring and an oil seal, and the top of the upper end cover is also provided with a dustproof seal.
Further, the bottom of the piston rod is also provided with a magnetic ring, the outside of the cylinder body is also provided with a magnetic position sensor, and the magnetic position sensor can be slidably positioned on a linear sliding groove arranged on the outside of the cylinder body.
The utility model has the beneficial effects that:
the electro-hydraulic integrated lifter rotates forwards or reversely through the motor, so that the high-pressure miniature gear pump is driven to convey oil in the oil tank to the rod chamber or the rodless chamber through the control valve block assembly and the hydraulic pipelines positioned in the oil tank shell and the cylinder body, and the piston rod can move up and down in the cylinder body; the hydraulic pipeline of the electro-hydraulic integrated lifter is holes formed in the oil tank shell and the cylinder body, and the actuator, the motor, the control valve block assembly and the oil tank are ingeniously connected integrally.
The electro-hydraulic integrated lifter has the characteristics of compact structure, exquisite size, large lifting force, modular assembly, convenience in mounting, dismounting and maintenance and the like, and is particularly suitable for working conditions such as logistics AGV (automatic guided vehicle), shuttle vehicle and the like which require large lifting force and limited height and mounting space.
Drawings
FIG. 1 is a schematic side view of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a schematic view of the planer structure of the present invention;
FIG. 4 is a schematic view of the hydraulic circuit connections of the present invention;
in the figures 1-4, 1-actuator, 2-motor, 3-control valve block assembly, 4-high pressure micro gear pump, 5-oil tank, 6-cylinder, 7-piston rod, 8-upper end cover, 9-lower end cover, 10-rod chamber, 11-rodless chamber, 12-hydraulic control one-way lock, 13-overflow valve, 14-one-way valve, 15-filter, 16-pressure regulating valve, 17-hydraulic pipeline, 18-oil filling hole, 19-mounting flange, 20-guide ring, 21-oil seal, 22-dust seal, 23-magnetic ring, 24-linear chute.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1-4, the utility model relates to an electro-hydraulic integrated lifter, which comprises an actuator 1, a motor 2, a control valve block assembly 3, a high-pressure micro gear pump 4 and an oil tank 5.
The vertical setting of executor 1 comprises cylinder body 6 and piston rod 7, and cylinder body 6 is the cuboid structure, and the inside cavity of cylinder body 6, the top of cylinder body 6 are equipped with threaded connection's upper end cover 8, and the bottom of cylinder body 6 is equipped with bolted connection's lower end cover 9. In order to facilitate the connection of the cylinder body 6 with other equipment, a mounting flange 19 can be additionally arranged outside the cylinder body 6, and the mounting flange 19 can be integrally formed with the cylinder body 6 or fixedly connected with the cylinder body by bolts. The piston rod 7 is located inside the cylinder body 6 and is of a cylindrical structure, the piston rod 7 divides the inside of the cylinder body 6 into a rod chamber 10 and a rodless chamber 11, and the top of the piston rod 7 penetrates through the upper end cover 8 of the cylinder body 6. In order to ensure the sealing between the rod chamber and the rodless chamber 11 and the guiding of the movement of the piston rod 7, a guide ring 20 and an oil seal 21 are arranged at the contact part of the piston rod 7 and the inside of the cylinder body 6 and the upper end cover 8; meanwhile, a dustproof seal 22 is arranged at the top of the upper end cover 8 for preventing dust.
The oil tank 5 is of a horizontally arranged cuboid structure, the oil tank 5 is hollow and is filled with oil; in order to facilitate the filling of oil, the top of the housing of the tank 5 is also provided with a filler hole 18 that can be opened or closed. One side end face of the oil tank 5 is connected with the actuator 1 through a bolt, the end face is blocked by the actuator 1, the other side end face of the oil tank 5 is connected with the control valve block assembly 3, and the end face is blocked by the control valve block assembly 3.
The motor 2 passes through a shell of the oil tank 5 through a lengthened bolt to be fixedly connected with a cylinder body 6 of the actuator 1, and an output shaft of the motor 2 passes through the control valve block assembly 3 to be in transmission connection with a high-pressure micro gear pump 4 positioned in the oil tank 5.
When the motor 2 rotates forwards or reversely, the high-pressure micro gear pump 4 can convey oil in the oil tank 5 to the rod chamber 10 or the rodless chamber 11 through the control valve block assembly 3 and the hydraulic pipeline 17 positioned in the shell of the oil tank 5 and the cylinder body 6, so that the piston rod 7 can move up and down in the cylinder body 6.
The specific structure of the control valve block assembly 3:
the control valve block assembly 3 is composed of two hydraulic control one-way locks 12, two overflow valves 13 and two one-way valves 14, the positive rotation output end and the negative rotation output end of the high-pressure miniature gear pump 4 are respectively connected with the two hydraulic control one-way locks 12 through hydraulic pipelines 17, the two hydraulic control one-way locks 12 are respectively connected with the two one-way valves 14 through hydraulic pipelines 17, and the two one-way valves 14 are respectively connected with the rod cavity 10 and the rodless cavity 11 through the hydraulic pipelines 17; the two overflow valves 13 are respectively connected with the rod cavity, the rodless cavity 11 and the oil tank 5 through hydraulic pipelines 17; the positive rotation output end and the negative rotation output end of the high-pressure miniature gear pump 4 can respectively convey oil to the rod cavity 10 and the rodless cavity 11 through a hydraulic control one-way lock 12, a one-way valve 14 and a hydraulic pipeline 17; the oil in the rod chamber 10 and the rodless chamber 11 can flow back into the oil tank 5 through two relief valves 13 and a hydraulic line 17, respectively.
The working principle of the electro-hydraulic integrated lifter is as follows:
when the motor 2 rotates forwards, the output shaft of the motor 2 can drive the high-pressure micro gear pump 4 to work in a forward rotation mode, and the forward rotation output end of the high-pressure micro gear pump 4 inputs oil in the oil tank 5 into the rodless cavity 11 of the cylinder body 6 of the actuator 1 through the hydraulic control one-way lock 12, the one-way valve 14 and the hydraulic pipeline 17; as oil is injected into the rodless chamber 11, the piston rod 7 of the actuator 1 moves upwards and extends out of the upper end cover 8 of the cylinder body 6; since the space for the rod chamber 10 is compressed while the piston rod 7 of the actuator 1 extends out of the upper end cap 8 of the cylinder 6, the oil in the rod chamber 10 flows back into the oil tank 5 through the hydraulic line 17 and the relief valve 13.
When the motor 2 rotates reversely, the output shaft of the motor 2 can drive the high-pressure micro gear pump 4 to rotate reversely, and the reverse rotation output end of the high-pressure micro gear pump 4 inputs oil in the oil tank 5 into the rod cavity 10 of the cylinder body 6 of the actuator 1 through another hydraulic control one-way lock 12, another one-way valve 14 and a hydraulic pipeline 17; because the oil is injected into the rod chamber 10, the piston rod 7 of the actuator 1 performs descending motion; since the space of the rodless chamber 11 is compressed while the piston rod 7 is descending, the oil in the rodless chamber 11 is returned to the tank 5 through the hydraulic line 17 and the other relief valve 13.
On the basis of the technical scheme, in order to further sense the position of the piston rod 7, a magnetic ring 23 can be additionally arranged at the bottom of the piston rod 7, meanwhile, a magnetic position sensor is additionally arranged outside the cylinder body 6 and can be arranged on a linear sliding groove 24 outside the cylinder body 6 in a sliding positioning mode, the position of the magnetic ring 23 is sensed through the magnetic position sensor, the motion condition of the piston rod 7 is known, and the motor 2 is matched for working.
It should be noted that, because the control valve block assembly 3 is provided with two pilot operated one-way locks 12, when the motor 2 is not operating, the pressures of the rodless chamber 11 and the rod chamber 10 are equal, and the pilot operated one-way locks 12 block all the hydraulic pipelines 17, so that the piston rod 7 in the cylinder 6 is in a stationary state.
In order to filter the oil entering the rodless chamber 11 and the rod chamber 10, the control valve block assembly 3 further comprises two filters 15, and the two check valves 14 are respectively connected with the rodless chamber 11 and the rod chamber 10 through the two filters 15; therefore, the oil output by the forward rotation output end and the backward rotation output end of the high-pressure micro gear pump 4 sequentially passes through the hydraulic control one-way lock 12, the one-way valve 14 and the filter 15 and is conveyed into the rod chamber 10 and the rodless chamber 11.
In addition, in order to further adjust the pressure of the oil delivered to the rod chamber 10 and the rodless chamber 11, the control valve block assembly 3 further includes two pressure regulating valves 16, the pressure regulating valves 16 are located between the pilot operated check lock 12 and the check valve 14 and are respectively connected to the pilot operated check lock 12, the check valve 14 and the hydraulic pipe of the oil tank 5, and the pressure of the oil delivered to the rod chamber 10 and the rodless chamber 11 can be adjusted through the two pressure regulating valves 16. When the pressure value output by the high-pressure micro gear pump 4 is larger than the set pressure value of the pressure regulating valve 16, the motor 2 and the high-pressure micro gear pump 4 still work, and the oil is not supplied to the rod chamber 10 or the rodless chamber 11 any more, but flows back to the oil tank 5.
Claims (9)
1. An integrative lift of electricity liquid which characterized in that: the electro-hydraulic integrated lifter comprises an actuator, a motor, a control valve block assembly, a high-pressure miniature gear pump and an oil tank; the actuator is vertically arranged and comprises a cylinder body and a piston rod, the cylinder body is hollow, the top of the cylinder body is provided with an upper end cover in threaded connection, the bottom of the cylinder body is provided with a lower end cover in bolted connection, the piston rod is positioned in the cylinder body and divides the interior of the cylinder body into a rod cavity and a rodless cavity, and the top of the piston rod penetrates through the upper end cover of the cylinder body; the oil tank is horizontally arranged, one side end face of the oil tank is connected with the actuator through a bolt and is plugged by the actuator, and the other side end face of the oil tank is connected with the control valve block assembly and is plugged by the control valve block assembly; the motor penetrates through the oil tank shell through a lengthened bolt to be fixedly connected with the cylinder body of the actuator, and an output shaft of the motor penetrates through the control valve block assembly to be in transmission connection with a high-pressure miniature gear pump positioned in the oil tank; when the motor rotates forwards or reversely, the high-pressure miniature gear pump can convey oil in the oil tank to the rod cavity or the rodless cavity through the control valve block assembly and the hydraulic pipeline positioned in the oil tank shell and the cylinder body, so that the piston rod can move up and down in the cylinder body.
2. The electro-hydraulic integrated lift of claim 1, wherein: the control valve block assembly consists of two hydraulic control one-way locks, two overflow valves and two one-way valves, and the forward rotation output end and the backward rotation output end of the high-pressure miniature gear pump can respectively convey oil to the rod cavity and the rodless cavity through the hydraulic control one-way locks, the one-way valves and the hydraulic pipelines; oil in the rod cavity and the rodless cavity can flow back to the oil tank through the two overflow valves and the hydraulic pipeline respectively.
3. The electro-hydraulic integrated lift of claim 2, wherein: the control valve block assembly further comprises two filters, and the positive rotation output end and the negative rotation output end of the high-pressure miniature gear pump can convey oil to the rod cavity and the rodless cavity through the hydraulic control one-way lock, the one-way valve, the filters and the hydraulic pipeline respectively.
4. The electro-hydraulic integrated lift of claim 2, wherein: the control valve block assembly further comprises two pressure regulating valves, the pressure regulating valves are located between the hydraulic control one-way lock and the one-way valve and are respectively connected with the hydraulic control one-way lock, the one-way valve and the oil tank hydraulic pipe, and the two pressure regulating valves can respectively regulate the pressure of oil conveyed to the rod cavity and the rodless cavity.
5. The electro-hydraulic integrated lift of any one of claims 1-4, wherein: the hydraulic pipeline is a hole formed in the oil tank shell and the cylinder body.
6. The electro-hydraulic integrated lift of any one of claims 1-4, wherein: the top of the oil tank shell is provided with an oil filling hole which can be opened or closed.
7. The electro-hydraulic integrated lift of any one of claims 1-4, wherein: and the outside of the cylinder body of the actuator is also provided with a mounting flange which is integrally formed with the cylinder body or fixedly connected with the cylinder body through bolts.
8. The electro-hydraulic integrated lift of any one of claims 1-4, wherein: the piston rod is provided with a guide ring and an oil seal at the contact part with the inside of the cylinder body and the upper end cover, and the top of the upper end cover is also provided with a dustproof seal.
9. The electro-hydraulic integrated lift of any one of claims 1-4, wherein: the bottom of the piston rod is also provided with a magnetic ring, the outside of the cylinder body is also provided with a magnetic position sensor, and the magnetic position sensor can be positioned on a linear sliding groove arranged outside the cylinder body in a sliding manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121530912.1U CN215566963U (en) | 2021-07-06 | 2021-07-06 | Electro-hydraulic integrated lifter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121530912.1U CN215566963U (en) | 2021-07-06 | 2021-07-06 | Electro-hydraulic integrated lifter |
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| Publication Number | Publication Date |
|---|---|
| CN215566963U true CN215566963U (en) | 2022-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121530912.1U Active CN215566963U (en) | 2021-07-06 | 2021-07-06 | Electro-hydraulic integrated lifter |
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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 |
-
2021
- 2021-07-06 CN CN202121530912.1U patent/CN215566963U/en active Active
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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