CN209835543U - Stacking machine energy recovery system and stacking machine - Google Patents
Stacking machine energy recovery system and stacking machine Download PDFInfo
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- CN209835543U CN209835543U CN201920755215.2U CN201920755215U CN209835543U CN 209835543 U CN209835543 U CN 209835543U CN 201920755215 U CN201920755215 U CN 201920755215U CN 209835543 U CN209835543 U CN 209835543U
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Abstract
The embodiment of the utility model provides a pile high quick-witted energy recuperation system and pile high machine relates to the engineering machine tool field. The energy recovery system comprises a first execution mechanism and a second execution mechanism, the first execution mechanism comprises a lifting hydraulic cylinder, a first control valve, a pump-motor, a first motor and a circulation pipeline, one end of the circulation pipeline is communicated with a rodless cavity of the lifting hydraulic cylinder, the other end of the circulation pipeline can be sequentially communicated with the first control valve and the pump-motor, and the first motor is connected with the pump-motor; the second actuating mechanism comprises an auxiliary actuating part, a second control valve, a first hydraulic pump and a second motor, the second motor is connected with the first hydraulic pump, and the first hydraulic pump is connected with the auxiliary actuating part through the second control valve. The first executing mechanism and the second executing mechanism are provided with independent power sources, the operation and the control are convenient, and the potential energy of the lifting hydraulic cylinder of the first executing mechanism can be recycled for power generation, so that the energy-saving and environment-friendly effects are achieved.
Description
Technical Field
The utility model relates to an engineering machine tool field particularly, relates to a pile high quick-witted energy recuperation system and pile high machine.
Background
The stacking machine is suitable for operation in narrow passages and limited spaces, and is ideal equipment for loading and unloading pallets in elevated warehouses and workshops. The explosive-free high-temperature-resistant high. The working efficiency can be greatly improved, the labor intensity of workers is reduced, and the market competition opportunity is won for enterprises.
The traditional stacking machine has the following disadvantages in the use process:
the traditional stacking machine adopts an energy accumulator to recover energy, and the energy recovery efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a heap high quick-witted energy recuperation system, it can retrieve the gravitational potential energy that hydraulic cylinder descends, turns into the electric energy with gravitational potential energy, and energy conversion is efficient, and simple structure, saves manufacturing cost.
The utility model discloses an aim still includes, provides a heap high machine, and it can control hydraulic lifting cylinder and supplementary executive respectively through the power supply of difference, controls more convenient and reliable, and can retrieve the gravitational potential energy of hydraulic lifting cylinder decline in-process, and the high-usage of energy is more energy-concerving and environment-protective.
The embodiment of the utility model discloses a can realize like this:
the embodiment of the utility model provides a heap high machine energy recovery system, heap high machine energy recovery system includes:
the hydraulic lifting system comprises a first executing mechanism and a second executing mechanism, wherein the first executing mechanism comprises a lifting hydraulic cylinder, a first control valve, a pump-motor, a first motor and a circulation pipeline, one end of the circulation pipeline is communicated with a rodless cavity of the lifting hydraulic cylinder, the other end of the circulation pipeline can be sequentially communicated with the first control valve and the pump-motor, and the first motor is connected with the pump-motor; the second actuating mechanism comprises an auxiliary actuating part, a second control valve, a first hydraulic pump and a second motor, the second motor is connected with the first hydraulic pump, and the first hydraulic pump is connected with the auxiliary actuating part through the second control valve.
Optionally, the first control valve includes a first oil port, a second oil port, a third oil port, a fourth oil port and a check valve, the rodless cavity is selectively communicated with the first oil port and the second oil port through a circulation pipeline, and the pump-motor is selectively communicated with the third oil port and the fourth oil port through a circulation pipeline; when the valve core of the first control valve is located at the first position, the first oil port is communicated with the fourth oil port through the one-way valve, and the one-way valve enables the first oil port to be blocked from flowing to the fourth oil port and enables the fourth oil port to flow smoothly to the first oil port; when the valve core of the first control valve is located at the second position, the second oil port is communicated with the third oil port.
Optionally, the first actuator further includes an electromagnetic valve, and the electromagnetic valve is connected to the first control valve and configured to drive the valve element of the first control valve to switch between the first position and the second position.
Optionally, the energy recovery system of the forklift further comprises a storage battery, and the storage battery is connected with the first motor.
Optionally, the auxiliary actuator includes a swing hydraulic cylinder, and the swing hydraulic cylinder is connected to the first hydraulic pump through a second control valve.
Optionally, the auxiliary actuator includes a swing hydraulic cylinder, a spreader hydraulic cylinder and a third control valve, the swing hydraulic cylinder is connected to the first hydraulic pump through the second control valve, and the spreader hydraulic cylinder is connected to the first hydraulic pump through the third control valve.
Optionally, the auxiliary actuator further comprises a steering hydraulic cylinder and a steering valve, and the steering hydraulic cylinder is connected with the first hydraulic pump through the steering valve.
Optionally, the stacking machine energy recovery system further comprises a second hydraulic pump, a third motor, a steering valve and a steering hydraulic cylinder, the third motor is connected with the second hydraulic pump, and the second hydraulic pump is connected with the steering hydraulic cylinder through the steering valve.
Optionally, the energy recovery system of the forklift further comprises a heat dissipation mechanism, and the heat dissipation mechanism is arranged on an oil return pipeline of the second execution mechanism.
Based on the above purpose, the embodiment further provides a forklift, which includes the energy recovery system of the forklift.
The utility model discloses heap high quick-witted energy recuperation system's beneficial effect includes, for example:
the embodiment provides an energy recovery system of a forklift, which comprises a first actuating mechanism and a second actuating mechanism, wherein the first actuating mechanism comprises a first electric motor and a pump-motor, and the second actuating mechanism comprises a second electric motor and a first hydraulic pump. The actuating member of the first actuating mechanism also namely the lifting hydraulic cylinder realizes telescopic action through the first motor and the pump-motor, the auxiliary actuating member of the second actuating mechanism realizes operation through the second motor and the first hydraulic pump, the lifting hydraulic cylinder and the auxiliary actuating member are driven by independent power sources to operate, mutual interference is less, the operation is more convenient and reliable, the operation difficulty can be reduced, and the operation efficiency is improved. Meanwhile, the first motor and the pump-motor can change the operation state according to the environment, when power is needed to be provided for the lifting hydraulic cylinder to enable the lifting hydraulic cylinder to do lifting action, the first motor drives the pump-motor to operate, at the moment, the pump-motor conveys hydraulic oil to the rodless cavity of the lifting hydraulic cylinder, and the pump-motor is in a pump working condition. When the lifting hydraulic cylinder retracts under the action of gravity, hydraulic oil flows from the rodless cavity to enter the pump-motor, the pump-motor rotates under the action of the hydraulic oil, at the moment, the pump-motor is in a motor working condition, the pump-motor works to drive the first motor to rotate, the first motor can be used as a generator for generating electricity, namely the first executing mechanism can recover the gravitational potential energy of the lifting hydraulic cylinder in the retracting process, and the energy-saving and environment-friendly effects are achieved.
The forklift provided by the embodiment comprises the energy recovery system of the forklift provided by the embodiment, and has all the advantages of the energy recovery system of the forklift.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic diagram of a hydraulic circuit of the energy recovery system of the forklift provided in the embodiment;
FIG. 2 is an enlarged view of a portion of FIG. 1 at I;
FIG. 3 is an enlarged view of a portion of FIG. 2 at II;
fig. 4 is a schematic view of a hydraulic circuit of a modification of the forklift energy recovery system according to the present embodiment.
Icon: 100-a stacker energy recovery system; 110 — a first actuator; 111-lifting hydraulic cylinders; 1110-rodless cavity; 112-a first control valve; 1121-first oil port; 1122-a second oil port; 1123-third oil port; 1124-fourth oil port; 1125-a one-way valve; 113-pump-motor; 114-a first motor; 115-a flow-through line; 116-a first solenoid valve; 117-a battery; 120-a second actuator; 121-auxiliary actuator; 1211-a rocking cylinder; 1212-spreader hydraulic cylinders; 1213-steering cylinders; 1214-a steering valve; 122-a second control valve; 1221-fifth oil port; 1222-a sixth oil port; 1223-a seventh oil port; 1224-eighth oil port; 123-a first hydraulic pump; 124-a second motor; 125-a third control valve; 126-a second solenoid valve; 127-a third solenoid valve; 128-priority valve; 130-a second hydraulic pump; 140-a third motor; 150-heat dissipation mechanism.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that, if the terms "upper", "lower", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the products of the present invention are used, the description is only for convenience of description and simplification, but the indication or suggestion that the indicated device or element must have a specific position, be constructed and operated in a specific orientation, and thus, should not be interpreted as a limitation of the present invention.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
Referring to fig. 1, the embodiment provides an energy recovery system 100 for a forklift, which is suitable for the forklift, and can recover part of energy during the operation process of the forklift, and convert the recovered energy into electric energy, so that the energy conversion efficiency is high, and the energy recovery system is more energy-saving and environment-friendly.
Referring to fig. 1, the energy recovery system 100 of the forklift provided in this embodiment includes a first actuator 110 and a second actuator 120, the first actuator 110 includes a lifting hydraulic cylinder 111, a first control valve 112, a pump-motor 113, a first electric machine 114 and a circulation line 115, one end of the circulation line 115 is communicated with a rodless cavity 1110 of the lifting hydraulic cylinder 111, the other end of the circulation line 115 is sequentially communicated with the first control valve 112 and the pump-motor 113, and the first electric machine 114 is connected to the pump-motor 113; the second actuator 120 includes an auxiliary actuator 121, a second control valve 122, a first hydraulic pump 123, and a second electric motor 124, the second electric motor 124 is connected to the first hydraulic pump 123, and the first hydraulic pump 123 is connected to the auxiliary actuator 121 through the second control valve 122.
The embodiment provides a stacker energy recovery system 100, which comprises a first actuator 110 and a second actuator 120, wherein the power source of the first actuator 110 comprises a first electric motor 114 and a pump-motor 113, and the power source of the second actuator 120 comprises a second electric motor 124 and a first hydraulic pump 123, namely, the power sources of the first actuator 110 and the second actuator 120 are independent from each other and have less interference with each other in operation. The actuator of the first actuator 110, that is, the lifting hydraulic cylinder 111, realizes the telescopic action through the first electric motor 114 and the pump-motor 113, the auxiliary actuator 121 of the second actuator 120 realizes the operation through the second electric motor 124 and the first hydraulic pump 123, and the lifting hydraulic cylinder 111 and the auxiliary actuator 121 are driven by independent power sources to operate, so that the mutual interference is less, the operation is more convenient and reliable, the operation difficulty can be reduced, and the operation efficiency can be improved. Meanwhile, the first electric machine 114 has two operating conditions, a motor operating condition in which the first electric machine 114 converts electrical energy into mechanical energy, and a generator operating condition in which the mechanical energy is converted into electrical energy. Specifically, the first electric machine 114 and the pump-motor 113 may change the operation state according to the environment, when power is required to be provided for the lifting hydraulic cylinder 111 to enable the lifting hydraulic cylinder to perform the lifting operation, the first electric machine 114 is in an electric motor working condition, the first electric machine 114 rotates to drive the pump-motor 113 to operate, at this time, the pump-motor 113 delivers hydraulic oil to the rodless cavity 1110 of the lifting hydraulic cylinder 111, and the pump-motor 113 is in a pump working condition. When the lifting hydraulic cylinder 111 retracts under the action of gravity, hydraulic oil flows from the rodless cavity 1110 to enter the pump-motor 113, the pump-motor 113 rotates under the action of the hydraulic oil, at the moment, the pump-motor 113 is in a motor working condition, the pump-motor 113 works to drive the first motor 114 to rotate, the first motor 114 can be used as a generator for generating electricity, namely, the first executing mechanism 110 can recover gravitational potential energy in the retraction process of the lifting hydraulic cylinder 111, and therefore energy conservation and environmental protection are achieved.
Referring to fig. 1, it should be noted that the number of the lifting cylinders 111 may be one, two, three, or other numbers, in this embodiment, the number of the lifting cylinders 111 is two, and the two lifting cylinders 111 are connected in parallel. Further, the lift cylinder 111 may be a lift cylinder.
Referring to fig. 1, in the present embodiment, the flow line 115 includes a first pipe segment, a second pipe segment and a third pipe segment, and two ends of the first pipe segment are respectively connected to the rodless cavity 1110 of the lifting hydraulic cylinder 111 and an oil port of the first control valve 112. Both ends of the second pipe section are respectively connected to the other oil port of the first control valve 112 and an oil port of the pump-motor 113, and both ends of the third pipe section are respectively connected to an oil port of the pump-motor 113 and the oil tank.
Referring to fig. 2, in the present embodiment, the first control valve 112 is a two-position four-way valve, specifically, the first control valve 112 includes a first oil port 1121, a second oil port 1122, a third oil port 1123, a fourth oil port 1124 and a check valve 1125, the rodless cavity 1110 is selectively communicated with the first oil port 1121 and the second oil port 1122 through a first pipe section, and the pump-motor 113 is selectively communicated with the third oil port 1123 and the fourth oil port 1124 through a second pipe section; when the spool of the first control valve 112 is located at the first position (the spool is located at the right position), the first oil port 1121 and the fourth oil port 1124 are communicated through the check valve 1125, the check valve 1125 enables the first oil port 1121 to flow to the fourth oil port 1124 to be blocked, and the fourth oil port 1124 to flow to the first oil port 1121 smoothly, at this time, the pump-motor 113 works to convey oil from the oil tank to the rodless cavity 1110 of the lifting hydraulic cylinder 111, the oil flows from a to b, and the lifting hydraulic cylinder 111 performs a lifting action; when the spool of the first control valve 112 is in the second position (the spool is in the left position), the second oil port 1122 is communicated with the third oil port 1123, the lift cylinder 111 is retracted, and the oil flows from the rodless chamber 1110 through the first pipe section, flows from the b direction to the a direction, flows from the second oil port 1122 to the third oil port 1123, and flows to the pump-motor 113.
Alternatively, the spool of the first control valve 112 is controlled in position by a first solenoid valve 116.
Optionally, a speed-limiting valve is disposed on the first pipe segment for controlling the flow rate of the hydraulic oil in the flow line 115.
In this embodiment, an oil port of the pump-motor 113 is optionally provided with a branch, the branch is communicated with the oil tank, and when the hydraulic oil flows into the pump-motor 113 from the rodless cavity 1110 to enable the pump-motor 113 to be in the motor operating condition, part of the hydraulic oil can flow back into the oil tank through the branch, so as to avoid that the pump-motor 113 is damaged due to too high hydraulic oil pressure.
Referring to fig. 1, optionally, the first actuator 110 further includes a battery 117, the battery 117 is electrically connected to the first motor 114, and when the first motor 114 is used as a generator, the generated electric energy can be stored in the battery 117.
Referring to fig. 1 and fig. 3, in the present embodiment, the second actuator 120 further includes a second control valve 122, a second electromagnetic valve 126, and a third electromagnetic valve 127, and both the second electromagnetic valve 126 and the third electromagnetic valve 127 are connected to the second control valve 122 for controlling the spool movement of the second control valve 122. The second control valve 122 is a two-position four-way valve, the second control valve 122 includes a fifth oil port 1221, a sixth oil port 1222, a seventh oil port 1223 and an eighth oil port 1224, the sixth oil port 1222 is used to communicate with an oil outlet of the first hydraulic pump 123, and the seventh oil port 1223 is used to communicate with an oil tank. When the second solenoid valve 126 controls the spool of the second control valve 122 to be located at the upper position, the sixth oil port 1222 is communicated with the fifth oil port 1221, and the seventh oil port 1223 is communicated with the eighth oil port 1224; when the third solenoid valve 127 controls the spool of the second control valve 122 to be located at the lower position, the sixth oil port 1222 is communicated with the eighth oil port 1224, and the fifth oil port 1221 is communicated with the seventh oil port 1223; the second control valve 122 is connected to the first hydraulic pump 123, and the auxiliary actuator 121 is connected to the second control valve 122.
Referring to fig. 1, optionally, the auxiliary actuator 121 includes a swing hydraulic cylinder 1211, a rodless cavity of the swing hydraulic cylinder 1211 is communicated with a fifth oil port 1221 of the second control valve 122, a rod cavity of the swing hydraulic cylinder 1211 is communicated with an eighth oil port 1224 of the second control valve 122, a sixth oil port 1222 of the second control valve 122 is communicated with an oil outlet of the first hydraulic pump 123, and a seventh oil port 1223 of the second control valve 122 is communicated with an oil tank. When the spool of the second control valve 122 is at the upper position, the first hydraulic pump 123 operates to feed oil into the rodless chamber, return the oil in the rod chamber to the oil tank, and extend the swing hydraulic cylinder 1211. When the spool of the second control valve 122 is at the lower position, the first hydraulic pump 123 operates to feed oil into the rod chamber, return the oil in the rodless chamber to the oil tank, and retract the swing hydraulic cylinder 1211. Optionally, the number of the swing cylinders 1211 is two, and the two swing cylinders 1211 are connected in parallel. Optionally, the swing cylinder 1211 is a swing cylinder.
Referring to fig. 1, in the embodiment, optionally, the auxiliary actuator 121 further includes a spreader hydraulic cylinder 1212, and the first hydraulic pump 123 is connected to the spreader hydraulic cylinder 1212 through the third control valve 125, and is used for driving the spreader hydraulic cylinder 1212 to extend or retract. Specifically, the third control valve 125 is a three-position four-way valve, when the spool of the third control valve 125 is located at the left position, the spreader hydraulic cylinder 1212 performs a retracting operation, and when the spool of the third control valve 125 is located at the right position, the spreader hydraulic cylinder 1212 performs an extending operation. Optionally, the spreader hydraulic cylinder 1212 is a spreader cylinder.
Referring to fig. 1, in the embodiment, optionally, the auxiliary actuator 121 further includes a steering hydraulic cylinder 1213, a steering valve 1214 and a priority valve 128, and the first hydraulic pump 123 is connected to the steering hydraulic cylinder 1213 through the steering valve 1214 and the priority valve 128, and is used for controlling the steering hydraulic cylinder 1213 to implement a steering action. When the steering hydraulic cylinder 1213 operates, the second motor 124 drives the hydraulic pump to move, hydraulic oil passes through the priority valve 128 and then flows to the steering valve 1214, and the P oil port of the steering valve 1214 is communicated with the L oil port of the steering valve 1214, so that left steering can be performed; when the P port of the steering valve 1214 is communicated with the R port of the steering valve 1214, right steering is possible. Optionally, the steering hydraulic cylinder 1213 is a steering cylinder.
Referring to fig. 4, in other embodiments, optionally, the auxiliary actuator further includes a second hydraulic pump 130 and a third motor 140, and the third motor 140 is connected to the second hydraulic pump 130. The auxiliary implement 121 includes a swing hydraulic cylinder 1211, a spreader hydraulic cylinder 1212, and a steering hydraulic cylinder 1213, and the swing hydraulic cylinder 1211 and the spreader hydraulic cylinder 1212 are connected to the first hydraulic pump 123. The steering cylinder 1213 is connected to the second hydraulic pump 130.
Optionally, the energy recovery system provided in this embodiment further includes a heat dissipation mechanism 150, and the heat dissipation mechanism 150 is disposed on the oil return line of the second actuator 120. For example, the oil that flows back to the tank from the swing cylinder 1211, the oil that flows back to the tank from the spreader cylinder 1212, and the oil that flows back to the tank from the steering cylinder 1213 may flow back to the tank after passing through the heat dissipation mechanism 150. Obviously, the working state of the heat dissipation mechanism 150 can be controlled, when the temperature of the system reaches the temperature required to dissipate heat, the heat dissipation mechanism 150 is turned on, otherwise, the heat dissipation mechanism 150 can be in the stop working state, thereby saving energy.
According to the energy recovery system 100 of the forklift provided by the embodiment, the lifting hydraulic cylinder 111 and the auxiliary executing part 121 respectively provide power sources by using the pump-motor 113 and the first hydraulic pump 123, so that the operation is convenient and reliable. And potential energy generated in the descending process of the lifting hydraulic cylinder 111 can be recovered and used for power generation, so that the energy is saved and the environment is protected.
The embodiment also provides a forklift, which comprises the forklift energy recovery system 100 provided by the embodiment, and has all the advantages of the forklift energy recovery system 100.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A forklift energy recovery system (100), characterized in that the forklift energy recovery system (100) comprises:
the hydraulic control system comprises a first execution mechanism (110) and a second execution mechanism (120), wherein the first execution mechanism (110) comprises a lifting hydraulic cylinder (111), a first control valve (112), a pump-motor (113), a first motor (114) and a circulation pipeline (115), one end of the circulation pipeline (115) is communicated with a rodless cavity (1110) of the lifting hydraulic cylinder (111), the other end of the circulation pipeline (115) can be sequentially communicated with the first control valve (112) and the pump-motor (113), and the first motor (114) is connected with the pump-motor (113); the second actuator (120) comprises an auxiliary actuator (121), a second control valve (122), a first hydraulic pump (123) and a second motor (124), wherein the second motor (124) is connected with the first hydraulic pump (123), and the first hydraulic pump (123) is connected with the auxiliary actuator (121) through the second control valve (122).
2. The forklift energy recovery system (100) of claim 1, wherein:
the first control valve (112) comprises a first oil port (1121), a second oil port (1122), a third oil port (1123), a fourth oil port (1124) and a check valve (1125), the rodless cavity (1110) is selectively communicated with the first oil port (1121) and the second oil port (1122) through the circulation pipeline (115), and the pump-motor (113) is selectively communicated with the third oil port (1123) and the fourth oil port (1124) through the circulation pipeline (115); when the spool of the first control valve (112) is located at a first position, the first oil port (1121) is communicated with the fourth oil port (1124) through the check valve (1125), the check valve (1125) enables the first oil port (1121) to flow to the fourth oil port (1124) to be blocked, and the fourth oil port (1124) flows to the first oil port (1121) smoothly; the second oil port (1122) communicates with the third oil port (1123) when the spool of the first control valve (112) is in the second position.
3. The forklift energy recovery system (100) of claim 2, wherein:
the first actuator (110) further comprises a solenoid valve, wherein the solenoid valve is connected with the first control valve (112) and is used for driving a valve core of the first control valve (112) to be switched between the first position and the second position.
4. The forklift energy recovery system (100) of claim 1, wherein:
the stacker energy recovery system (100) further comprises a battery (117), and the battery (117) is connected with the first motor (114).
5. The forklift energy recovery system (100) of claim 1, wherein:
the auxiliary implement (121) comprises a swing hydraulic cylinder (1211), and the swing hydraulic cylinder (1211) is connected with the first hydraulic pump (123) through the second control valve (122).
6. The forklift energy recovery system (100) of claim 1, wherein:
the auxiliary actuator (121) comprises a swing hydraulic cylinder (1211), a spreader hydraulic cylinder (1212) and a third control valve (125), wherein the swing hydraulic cylinder (1211) is connected with the first hydraulic pump (123) through the second control valve (122), and the spreader hydraulic cylinder (1212) is connected with the first hydraulic pump (123) through the third control valve (125).
7. The forklift energy recovery system (100) of claim 6, wherein:
the auxiliary implement (121) further comprises a steering hydraulic cylinder (1213) and a steering valve (1214), wherein the steering hydraulic cylinder (1213) is connected to the first hydraulic pump (123) via the steering valve (1214).
8. The forklift energy recovery system (100) of claim 1, wherein:
the stacker crane energy recovery system (100) further comprises a second hydraulic pump (130), a third motor (140), a steering valve (1214) and a steering hydraulic cylinder (1213), wherein the third motor (140) is connected with the second hydraulic pump (130), and the second hydraulic pump (130) is connected with the steering hydraulic cylinder (1213) through the steering valve (1214).
9. The forklift energy recovery system (100) of claim 1, wherein:
the stacker energy recovery system (100) further comprises a heat dissipation mechanism (150), and the heat dissipation mechanism (150) is arranged on an oil return pipeline of the second execution mechanism (120).
10. A fork lift, characterized in that it comprises:
the forklift energy recovery system (100) according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920755215.2U CN209835543U (en) | 2019-05-27 | 2019-05-27 | Stacking machine energy recovery system and stacking machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920755215.2U CN209835543U (en) | 2019-05-27 | 2019-05-27 | Stacking machine energy recovery system and stacking machine |
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| CN209835543U true CN209835543U (en) | 2019-12-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112591681A (en) * | 2020-12-24 | 2021-04-02 | 杭叉集团股份有限公司 | Portal rises to rise and hydraulic circuit that potential energy was retrieved |
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2019
- 2019-05-27 CN CN201920755215.2U patent/CN209835543U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112591681A (en) * | 2020-12-24 | 2021-04-02 | 杭叉集团股份有限公司 | Portal rises to rise and hydraulic circuit that potential energy was retrieved |
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