CN220151630U - Hydraulic power device applied to lifting of machine head of barren machine - Google Patents
Hydraulic power device applied to lifting of machine head of barren machine Download PDFInfo
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- CN220151630U CN220151630U CN202321458371.5U CN202321458371U CN220151630U CN 220151630 U CN220151630 U CN 220151630U CN 202321458371 U CN202321458371 U CN 202321458371U CN 220151630 U CN220151630 U CN 220151630U
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- 239000007788 liquid Substances 0.000 claims abstract description 15
- 238000003860 storage Methods 0.000 claims abstract description 11
- 230000008602 contraction Effects 0.000 claims description 51
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 230000009471 action Effects 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 74
- 230000000694 effects Effects 0.000 description 4
- 239000010720 hydraulic oil Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Fluid-Pressure Circuits (AREA)
Abstract
The utility model relates to the technical field of barren machines, in particular to a hydraulic power device applied to lifting of a barren machine head, which comprises a hydraulic cylinder, a liquid storage tank, an oil supply pipe, an oil return pipe, a hydraulic pump and a valve component, wherein the hydraulic cylinder is connected to a barren machine body and drives the barren machine head to execute overturning action; the buffer control valve is controlled to control whether the machine head needs to have buffer acting force, so that the barren machine can play a more efficient role in some special places.
Description
Technical Field
The utility model relates to the technical field of barren machines, in particular to a hydraulic power device applied to lifting of a barren machine head.
Background
The barren machine is a soil preparation machine, can clean shrubs, barren grass and the like, and is widely applied to the fields of agriculture barren, traffic construction, building construction and the like; the machine head is driven to move forwards by the machine body, and the machine head adopts different structures according to special operations, and the machine head relates to various barren operations such as digging, hammering, shoveling, cutting, shearing, grabbing, raking, ploughing, spraying, blowing, forking, brushing and the like;
the machine head and the machine body are matched, and the machine head needs to be in contact with the ground to achieve the aim of barren, so that the machine body is generally arranged into a structure that the machine head can be turned over by power up and down, and the power adopts a hydraulic power system, so that the machine head can move down to be in contact with the ground when the barren machine is in barren work, and can be moved up to be in a suspension state when the barren machine is not in work or only walks; when the machine body of the barren machine drives the machine head, if a certain buffer effect can be controlled between the machine head and the machine body or the machine body cannot be controlled, the machine head can work more efficiently in barren operation, for example, when the machine head is configured as a barren tool with high impact strength, the impact strength of the machine head can be reduced due to the buffer effect, so that the barren strength is reduced; when the tool is configured as a barren tool with high coupling degree with the acting object, the coupling degree of the acting object can be improved by having a buffering effect; in this regard, on the basis that the machine body of the barren machine drives the machine head to turn up and down, it is necessary to further improve the hydraulic power system for controlling the turning based on the complexity of the barren production place.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides a technical scheme capable of solving the problems.
The hydraulic power device comprises a hydraulic cylinder, a liquid storage tank, an oil supply pipe, an oil return pipe, a hydraulic pump and a valve component, wherein the hydraulic cylinder is used for being connected to a machine body of a barren machine and driving the barren machine head to execute overturning action;
the valve component comprises a three-position four-way valve, a contraction switch control valve and a stretching switch control valve, an oil supply pipe and an oil return pipe are respectively connected to one side of the three-position four-way valve, and the other side of the three-position four-way valve is respectively connected with two ends of the hydraulic cylinder through the contraction switch control valve and the stretching switch control valve;
a buffer control valve is connected to an oil path between the contraction switch control valve and the hydraulic cylinder, and an accumulator is connected to the oil path between the contraction switch control valve and the hydraulic cylinder through the buffer control valve; the oil way between the contraction switch control valve and the hydraulic cylinder is also connected with a one-way valve, and the two ends of the one-way valve are connected with a first throttle valve in parallel.
Preferably, the oil supply pipe and the oil return pipe form a forward loop, a reverse loop or an oil return loop with the hydraulic cylinder through a three-position four-way valve, the piston end of the hydraulic cylinder is stretched through the power of the hydraulic pump in the forward loop state, the piston end of the hydraulic cylinder is contracted through the power of the hydraulic pump in the reverse loop state, and the two ends of the hydraulic cylinder are connected with the oil return pipe through a contraction switch control valve and a stretching switch control valve respectively in the oil return loop state.
Preferably, the buffer control valve is a two-position three-way valve, the buffer control valve is respectively connected with the hydraulic cylinder, the energy accumulator and the oil return pipe, and the energy accumulator is connected to the oil return pipe or the hydraulic cylinder through the buffer control valve.
Preferably, a second throttle valve is further connected to an oil passage between the buffer control valve and the oil return pipe.
Preferably, a switch two-position two-way valve is connected between the oil supply pipe and the oil return pipe in parallel, and the oil supply pipe and the oil return pipe are conducted or cut off through the switch two-position two-way valve.
Preferably, the contraction switch control valve, the stretching switch control valve and the switch two-position two-way valve are pilot two-position two-way valves, and the three-position four-way valve is respectively conducted with two ends of the hydraulic cylinder in one way or two ways through the stretching switch control valve and the switch two-position two-way valve; the oil supply pipe is positively conducted or positively cut off with the oil return pipe through the switch two-position two-way valve.
Preferably, an overflow valve is also connected in parallel between the oil supply line and the return line.
Preferably, the oil paths of the contraction switch control valve and the hydraulic cylinder and the oil paths of the stretching switch control valve and the hydraulic cylinder are respectively provided with a multi-way joint, and the contraction switch control valve and the stretching switch control valve can be connected with a plurality of synchronous hydraulic cylinders through the multi-way joints.
Compared with the prior art, the utility model has the beneficial effects that:
the energy accumulator is connected to the oil path between the contraction switch control valve and the hydraulic cylinder by adopting the buffer control valve, namely, when the energy accumulator is connected to the oil path between the contraction switch control valve and the hydraulic cylinder by the buffer control valve, the machine head can have downward buffer acting force through the energy accumulator, and when the energy accumulator is cut off by the buffer control valve and the oil path between the contraction switch control valve and the hydraulic cylinder, the machine head does not have the buffer acting force brought by the energy accumulator, so that whether the machine head needs to have the buffer acting force or not can be controlled by only controlling the buffer control valve, and the machine head can play a more efficient role in some special places.
The parallel connection structure of the one-way valve and the first throttle valve is connected to an oil circuit between the contraction switch control valve and the hydraulic cylinder, so that the descending speed of the machine head can be reduced by the first throttle valve in the descending process of the machine head, and the machine head can be slowly descended to protect the machine head.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a hydraulic schematic of the present utility model;
FIG. 2 is a hydraulic schematic of the forward circuit of the present utility model;
FIG. 3 is a hydraulic schematic of the reverse circuit of the present utility model;
FIG. 4 is a hydraulic schematic of the oil return circuit of the present utility model;
fig. 5 is a schematic structural view of the barren machine of the present utility model.
Reference numerals and names in the drawings are as follows:
the hydraulic machine comprises a machine body 10, a machine head 20, a hydraulic cylinder 30, a hydraulic stretching joint 31, a hydraulic contraction joint 32, a liquid storage tank 41, an oil supply pipe 42, an oil return pipe 43, a hydraulic pump 44, a two-position two-way valve 45, an overflow valve 46, a three-position four-way valve 51, a contraction switch control valve 52, a stretching switch control valve 53, a buffer control valve 54, an energy accumulator 55, a check valve 56, a first throttle valve 57, a second throttle valve 58 and a multi-way joint 59.
Detailed Description
The following description of the technical solutions in the embodiments of the present utility model will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-5, in an embodiment of the present utility model, a hydraulic power device for lifting a head of a barreling machine includes a hydraulic cylinder 30 for connecting to a barreling machine body 10 and driving the barreling machine head 20 to perform a tilting action, the hydraulic cylinder 30 is provided with a hydraulic stretching interface 31 for stretching a piston end thereof and a hydraulic contracting interface 32 for contracting the piston end thereof, and further includes a liquid storage tank 41, an oil supply pipe 42 connected to a liquid outlet of the liquid storage tank 41, an oil return pipe 43 connected to a liquid inlet of the liquid storage tank 41, a hydraulic pump 44 disposed on the oil supply pipe 42, and a valve member connected between the oil supply pipe 42 and the oil return pipe 43 for hydraulically controlling the hydraulic cylinder 30;
the valve component comprises a three-position four-way valve 51, a contraction switch control valve 52 and a stretching switch control valve 53, the oil supply pipe 42 and the oil return pipe 43 are respectively connected to one side of the three-position four-way valve 51, and the other side of the three-position four-way valve 51 is respectively connected with the hydraulic contraction interface 32 and the hydraulic stretching interface 31 through the contraction switch control valve 52 and the stretching switch control valve 53;
a buffer control valve 54 is connected to an oil path between the contraction switch control valve 52 and the hydraulic contraction joint 32, and an accumulator 55 is connected to the oil path between the contraction switch control valve 52 and the hydraulic contraction joint 32 through the buffer control valve 54; the oil passage between the contraction switching control valve 52 and the hydraulic contraction joint 32 is also connected with a check valve 56, and a first throttle valve 57 is also connected in parallel to both ends of the check valve 56.
In the above technical solution, the nose 20 of the barren machine is rotatably connected to the front of the body 10 of the barren machine, the hydraulic cylinder 30 is arranged on the body 10 to be connected to the nose 20 in a power mode, when the hydraulic cylinder 30 stretches, the nose 20 will overturn downwards to reach the operation of descending to contact with the ground, and when the hydraulic cylinder 30 contracts, the nose 20 will overturn upwards to reach the operation of ascending and suspending;
the hydraulic control system is arranged, the main body part consists of a liquid storage tank 41, an oil supply pipe 42, an oil return pipe 43 and a hydraulic pump 44, and the main body part can be connected with a plurality of valve components in parallel through the oil supply pipe 42 and the oil return pipe 43, so that the machine head 20 can be controlled to turn up and down, and other hydraulic execution components on a barren machine can be connected to achieve the aim of common control;
on the basis, the valve component is mainly composed of three valves, namely a three-position four-way valve 51, a contraction switch control valve 52 and a stretching switch control valve 53, the three-position four-way valve 51 is respectively connected with the contraction switch control valve 52 and the stretching switch control valve 53 to be respectively connected with two ends of the hydraulic cylinder 30, the three-position four-way valve 51 is mainly used for controlling the stroke of the piston end of the hydraulic cylinder 30, and the contraction switch control valve 52 and the stretching switch control valve 53 are respectively used for stopping the two ends of the hydraulic cylinder 30, so that the piston position of the hydraulic cylinder 30 can be fixed, and the aim of controlling the overturning angle of the machine head 20 is achieved; by using the buffer control valve 54 to provide the accumulator 55 connected to the oil path between the pinch switch control valve 52 and the hydraulic cylinder 30, that is, when the accumulator 55 is connected to the oil path between the pinch switch control valve 52 and the hydraulic cylinder 30 through the buffer control valve 54, the handpiece 20 can provide a downward buffer force through the accumulator 55, and when the accumulator 55 is cut off through the oil path between the buffer control valve 54 and the pinch switch control valve 52 and the hydraulic cylinder 30, the handpiece 20 will not provide the buffer force by the accumulator 55, so that it is possible to realize whether the handpiece 20 is to have the buffer force or not as long as the buffer control valve 54 is controlled, thereby enabling the waster to exert a more efficient effect in some special places.
In addition, since the nose 20 itself has gravity when it is turned over and descends, if it descends too fast, a large impact force is brought to the connection structure between the body 10 and the nose 20 when it is stopped, so that the parallel connection structure of the check valve 56 and the first throttle valve 57 is arranged to connect to the oil path between the retraction switch control valve 52 and the hydraulic cylinder 30, so that the descending speed of the nose 20 can be reduced by the first throttle valve 57 during the descending process, thereby achieving the effect of slowly descending to protect the nose 20.
Referring to fig. 2 to 4, the oil supply pipe 42 and the oil return pipe 43 form a forward loop, a reverse loop or an oil return loop with the hydraulic cylinder 30 through a three-position four-way valve 51, the three-position four-way valve 51 adopts electromagnetic control, in a forward loop state, as shown in fig. 3, a piston end of the hydraulic cylinder 30 is stretched by power of the hydraulic pump 44, in a reverse loop state, as shown in fig. 4, the piston end of the hydraulic cylinder 30 is contracted by power of the hydraulic pump 44, and in an oil return loop state, as shown in fig. 5, the hydraulic contraction interface 32 and the hydraulic stretching interface 31 are connected with the oil return pipe 43 through a contraction switch control valve 52 and a stretching switch control valve 53, respectively; that is, the position of the piston of the hydraulic cylinder 30 can be held by the contraction switch control valve 52 and the tension switch, respectively, so that the position of the head 20 can be fixed, and both ends of the hydraulic cylinder 30 can be connected to the oil return pipe 43, so that the head 20 can be naturally turned over.
Referring to fig. 1 to 4, the buffer control valve 54 is a two-position three-way valve, the buffer control valve 54 is respectively connected with the hydraulic cylinder 30, the accumulator 55 and the oil return pipe 43, and the accumulator 55 is connected to the oil return pipe 43 or the hydraulic cylinder 30 through the buffer control valve 54; a second throttle valve 58 is further connected to the oil path between the buffer control valve 54 and the oil return pipe 43, so that the accumulator 55 is prevented from generating a large impact on the oil return pipe 43 after being connected to the oil return pipe 43, and thus a backflow is prevented.
Referring to fig. 1-4, a two-position two-way valve 45 is connected in parallel between the oil supply pipe 42 and the oil return pipe 43, and the oil supply pipe 42 and the oil return pipe 43 are turned on or off by the two-position two-way valve 45; by this arrangement, the hydraulic pump 44 can be kept in an operating state all the time, that is, the two-position two-way valve 45 is switched to be in a conducting state in a normal state, when the nose 20 of the barren machine is not in operation, the three-position four-way valve 51 is switched to be in an intermediate position, and at the moment, the hydraulic oil of the oil supply pipe 42 can flow back into the liquid storage tank 41 along the two-position two-way valve 45; when the head 20 of the waste-to-waste machine is in operation, hydraulic oil will be able to act along the feed pipe 42 into the valve member by switching the two-position two-way valve 45 to the off state.
Referring to fig. 1-4, the contraction switch control valve 52, the tension switch control valve 53 and the two-position two-way valve 45 are pilot two-position two-way valves, the three-position four-way valve 51 conducts unidirectionally or bidirectionally with the hydraulic contraction interface 32 through the contraction switch control valve 52, and the three-position four-way valve 51 conducts unidirectionally or bidirectionally with the hydraulic tension interface 31 through the tension switch control valve 53; the machine head 20 can be controlled to rise, fall or keep a certain position in a overturning way, and the oil supply pipe 42 is communicated with the oil return pipe 43 in the forward direction or cut off in the forward direction through the two-position two-way valve 45; a relief valve 46 is also connected in parallel between the oil supply pipe 42 and the oil return pipe 43 so that the oil supply pipe 42 can supply hydraulic oil of a stable pressure to the valve member; in addition, the oil paths of the contraction switch control valve 52 and the hydraulic cylinder 30 and the oil paths of the stretching switch control valve 53 and the hydraulic cylinder 30 are respectively provided with a multi-way joint 59, and the contraction switch control valve 52 and the stretching switch control valve 53 can be connected with a plurality of synchronous hydraulic cylinders 30 in parallel through the multi-way joints 59, so that the machine body 10 can be connected with a plurality of hydraulic cylinders 30 simultaneously to drive the machine head 20 to turn over more stably.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (8)
1. The hydraulic power device is characterized by also comprising a liquid storage tank, an oil supply pipe connected to a liquid outlet of the liquid storage tank, an oil return pipe connected to a liquid inlet of the liquid storage tank, a hydraulic pump arranged on the oil supply pipe and a valve component connected between the oil supply pipe and the oil return pipe and used for controlling the hydraulic cylinder;
the valve component comprises a three-position four-way valve, a contraction switch control valve and a stretching switch control valve, an oil supply pipe and an oil return pipe are respectively connected to one side of the three-position four-way valve, and the other side of the three-position four-way valve is respectively connected with a hydraulic contraction interface and a hydraulic stretching interface through the contraction switch control valve and the stretching switch control valve;
a buffer control valve is connected to an oil path between the contraction switch control valve and the hydraulic contraction interface, and an accumulator is connected to the oil path between the contraction switch control valve and the hydraulic contraction interface through the buffer control valve; the oil way between the contraction switch control valve and the hydraulic contraction interface is also connected with a one-way valve, and the two ends of the one-way valve are connected with a first throttle valve in parallel.
2. The hydraulic power device for lifting a machine head of a barren machine according to claim 1, wherein the oil supply pipe and the oil return pipe form a forward loop, a reverse loop or an oil return loop with the hydraulic cylinder through a three-position four-way valve, the piston end of the hydraulic cylinder is stretched by the power of the hydraulic pump in the forward loop state, the piston end of the hydraulic cylinder is contracted by the power of the hydraulic pump in the reverse loop state, and the hydraulic contraction interface and the hydraulic stretching interface are connected with the oil return pipe through a contraction switch control valve and a stretching switch control valve respectively in the oil return loop state.
3. The hydraulic power device for lifting a machine head of a barren machine according to claim 1, wherein the buffer control valve is a two-position three-way valve, the buffer control valve is respectively connected with the hydraulic cylinder, the energy accumulator and the oil return pipe, and the energy accumulator is connected to the oil return pipe or the hydraulic cylinder through the buffer control valve.
4. A hydraulic power unit for lifting a head of a barren machine according to claim 3, wherein a second throttle valve is further connected to an oil path between the buffer control valve and the oil return pipe.
5. The hydraulic power device for lifting the head of the barren machine according to claim 1, wherein a two-position two-way valve is connected in parallel between the oil supply pipe and the oil return pipe, and the oil supply pipe and the oil return pipe are connected or disconnected through the two-position two-way valve.
6. The hydraulic power device for lifting the head of the barren machine according to claim 5, wherein the contraction switch control valve, the stretching switch control valve and the two-position two-way switch valve are pilot two-position two-way valves, the three-position four-way valve is in one-way conduction or two-way conduction with the hydraulic contraction interface through the contraction switch control valve, and the three-position four-way valve is in one-way conduction or two-way conduction with the hydraulic stretching interface through the stretching switch control valve; the oil supply pipe is positively conducted or positively cut off with the oil return pipe through the switch two-position two-way valve.
7. The hydraulic power device for lifting a head of a barren machine according to claim 1, wherein an overflow valve is connected in parallel between the oil supply pipe and the oil return pipe.
8. The hydraulic power device for lifting the head of the barren machine according to claim 1, wherein the oil paths of the contraction switch control valve and the hydraulic cylinder and the oil paths of the stretching switch control valve and the hydraulic cylinder are respectively provided with a multi-way joint, and the contraction switch control valve and the stretching switch control valve can be connected with a plurality of synchronous hydraulic cylinders in parallel through the multi-way joints.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321458371.5U CN220151630U (en) | 2023-06-09 | 2023-06-09 | Hydraulic power device applied to lifting of machine head of barren machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321458371.5U CN220151630U (en) | 2023-06-09 | 2023-06-09 | Hydraulic power device applied to lifting of machine head of barren machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220151630U true CN220151630U (en) | 2023-12-08 |
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ID=89011745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321458371.5U Active CN220151630U (en) | 2023-06-09 | 2023-06-09 | Hydraulic power device applied to lifting of machine head of barren machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220151630U (en) |
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2023
- 2023-06-09 CN CN202321458371.5U patent/CN220151630U/en active Active
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