CN216689398U - Pile press and walking oil cylinder automatic compensation control mechanism thereof - Google Patents
Pile press and walking oil cylinder automatic compensation control mechanism thereof Download PDFInfo
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- CN216689398U CN216689398U CN202123316396.5U CN202123316396U CN216689398U CN 216689398 U CN216689398 U CN 216689398U CN 202123316396 U CN202123316396 U CN 202123316396U CN 216689398 U CN216689398 U CN 216689398U
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Abstract
The utility model discloses a pile press and a walking oil cylinder automatic compensation control mechanism thereof, wherein the walking oil cylinder automatic compensation control mechanism comprises a walking oil cylinder and a compensation oil cylinder, and further comprises a control valve communicated with a rod cavity and a rodless cavity of the walking oil cylinder, the rod cavity of the walking oil cylinder is communicated with the rod cavity of the compensation oil cylinder, and the rodless cavity of the walking oil cylinder is communicated with the rodless cavity of the compensation oil cylinder. The automatic compensation control mechanism of the walking oil cylinder can control the self-adaptive extension of the piston rod of the compensation oil cylinder through the reversing valve, so that the self-adaptive length compensation can be carried out on the original fixed structural length in the bearable range of the pile pressing machine structure, the structural stress can be reduced to the bearable range, and the problems of deformation, cracking and other functional faults of the oil cylinder and the structural member caused by walking in a work place with severe environment are solved; meanwhile, the automatic compensation control mechanism of the walking oil cylinder is simple in structure, convenient to install and maintain and low in cost.
Description
Technical Field
The utility model relates to the technical field of hydraulic systems, in particular to an automatic compensation control mechanism for a traveling oil cylinder. The utility model also relates to a pile press with the automatic compensation control mechanism of the walking oil cylinder.
Background
At present, a static pile press (hydraulic static pile press) is mainly applied to precast pile construction of cohesive soil or soft cohesive soil layers with lighter sand property. The walking mode of the pile press is walking, and the lifting, longitudinal movement, transverse movement and rotation actions of the pile press are completed by a lifting mechanism, a longitudinal movement mechanism and a transverse movement rotation mechanism respectively; the continuous walking type walking of the pile machine can be realized by utilizing the three sets of mechanisms and four actions.
In the prior art, four lift cylinder barrels in a lift mechanism 2 are respectively connected with a machine body 1 through four cantilevers, piston rods of the four lift cylinder barrels are respectively hinged with four groups of walking trolleys 5 on a long ship 3, and two walking cylinders 4 realize longitudinal relative position change between the machine body and the long ship through stretching, however, because the relative positions of the lift cylinders and the machine body are fixed, when a pile press machine walks and meets the condition that the ground is uneven or even has a certain upper and lower gradient, as shown in fig. 1 and 2, after the walking cylinders reach a certain extension amount, certain position compensation can not be provided for the relative distance of the long ship walking trolleys, and the lift cylinders and the machine body are stressed to a certain degree when the pile press machine walks, so that functional faults such as deformation and cracking of structural parts can be caused, and the service life of the pile press machine is influenced.
Therefore, how to avoid the influence on the service life of the pile pressing machine caused by the fact that a certain position compensation cannot be provided for the relative distance of the long ship walking trolley is a technical problem to be solved by the technical personnel in the field at present.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an automatic compensation control mechanism of a walking oil cylinder, which can perform self-adaptive length compensation, thereby reducing the stress of a structural part and effectively prolonging the service lives of the oil cylinder and the structural part of a pile press. The utility model also aims to provide a pile press comprising the automatic compensation control mechanism of the walking oil cylinder.
In order to achieve the purpose, the utility model provides an automatic compensation control mechanism of a walking oil cylinder, which comprises the walking oil cylinder, a compensation oil cylinder connected with the walking oil cylinder and a control valve communicated with a rod cavity and a rodless cavity of the walking oil cylinder, wherein the rod cavity of the walking oil cylinder is communicated with the rod cavity of the compensation oil cylinder, and the rodless cavity of the walking oil cylinder is communicated with the rodless cavity of the compensation oil cylinder.
Optionally, a rod cavity of the walking oil cylinder is provided with a first oil port, the first oil port is connected with a first three-way joint, and the first three-way joint is communicated with the first cavity of the control valve through a first pipeline; and a second oil port is formed in a rodless cavity of the walking oil cylinder, the second oil port is connected with a second three-way joint, and the second three-way joint is communicated with a second cavity of the control valve through a second pipeline.
Optionally, a rod cavity of the compensation oil cylinder is provided with a third oil port, and the first three-way joint is communicated with the third oil port through a third pipeline.
Optionally, a rodless cavity of the compensation oil cylinder is provided with a fourth oil port, and the second three-way joint is communicated with the fourth oil port through a fourth pipeline.
Optionally, the second pipeline includes a first steel pipe and a first hose, one end of the first steel pipe is connected to the second three-way joint, the other end of the first steel pipe is connected to one end of the first hose, and the other end of the first hose is communicated with the second cavity of the control valve.
Optionally, the third pipeline includes a second steel pipe and a second hose, one end of the second steel pipe is connected to the first three-way joint, the other end of the second steel pipe is connected to one end of the second hose, and the other end of the second hose is communicated to the third oil port.
Optionally, the first conduit and the fourth conduit are both elbows.
Optionally, the control valve is embodied as a directional valve.
Optionally, an oil source connected to the reversing valve and used for providing pressure oil is further included.
The utility model also provides a pile press, which comprises the automatic compensation control mechanism for the walking oil cylinder.
Compared with the background art, the automatic compensation control mechanism for the walking oil cylinder comprises the walking oil cylinder and a compensation oil cylinder, wherein the compensation oil cylinder is connected with the walking oil cylinder, and the walking oil cylinder realizes longitudinal relative position change between a pile press machine body and a long ship through telescopic motion, so that the machine body moves longitudinally; when the pile press walks and meets the condition that the ground is uneven or even has a certain gradient, the walking oil cylinder reaches a certain extension amount, and at the moment, the compensation oil cylinder provides movable position compensation for the relative distance of the walking trolley on the long ship so as to improve the stress condition of the oil cylinder and each structural component of the machine body when the pile press walks; furthermore, the automatic compensation control mechanism of the walking oil cylinder also comprises a control valve, the control valve is communicated with a rod cavity and a rodless cavity of the walking oil cylinder, the rod cavity of the walking oil cylinder is communicated with the rod cavity of the compensation oil cylinder, and the rodless cavity of the walking oil cylinder is communicated with the rodless cavity of the compensation oil cylinder.
Therefore, when the long ship walks on the slope ground, the piston rod of the compensation oil cylinder needs to extend out to realize length compensation, and it can be seen that pressure oil flows into the rodless cavity of the walking oil cylinder from the oil outlet B of the reversing valve, and the pressure oil in the rodless cavity of the walking oil cylinder flows into the rodless cavity of the compensation oil cylinder, so that the piston rod of the compensation oil cylinder has extension control force; when the long ship transits from the sloping ground to the flat ground, the piston rod of the compensation oil cylinder needs to retract, pressure oil is discharged from an oil outlet A of the reversing valve and enters a rod cavity of the walking oil cylinder, and the pressure oil in the rod cavity of the walking oil cylinder enters the rod cavity of the compensation oil cylinder, so that the piston rod of the compensation oil cylinder can have retraction control force. Compared with the traditional mode without a compensation oil cylinder and a control reversing valve, the automatic compensation control mechanism of the walking oil cylinder provided by the embodiment of the utility model can control the self-adaptive extension of the piston rod of the compensation oil cylinder through the reversing valve, so that the self-adaptive length compensation can be carried out on the original fixed structural length in the bearable range of the pile pressing machine structure, the structural stress can be reduced to the bearable range, and the problems of deformation, cracking and other functional faults of the oil cylinder and the structural member caused by walking in a work place with severe environment are solved; meanwhile, the automatic compensation control mechanism of the walking oil cylinder is simple in structure, convenient to install and maintain and low in cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural view of a hydrostatic pile press of the prior art;
FIG. 2 is a schematic diagram of a state of a hydrostatic pile driver in the prior art when climbing a slope;
FIG. 3 is a schematic view of a connection structure of an automatic compensation control mechanism of a traveling cylinder according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a pile driver according to an embodiment of the present invention.
Wherein:
1-a machine body, 2-a lifting mechanism, 3-a long ship, 4-a traveling oil cylinder and 5-a traveling trolley;
100-a compensation oil cylinder, 101-a first oil port, 102-a first pipeline, 103-a second oil port, 104-a second pipeline, 105-a third oil port, 106-a third pipeline, 107-a fourth oil port and 108-a fourth pipeline.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in 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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The core of the utility model is to provide an automatic compensation control mechanism of a walking oil cylinder, which can perform self-adaptive length compensation, thereby reducing the stress of a structural member and effectively prolonging the service lives of the oil cylinder and the structural member of a pile press. The other core of the utility model is to provide a pile press comprising the automatic compensation control mechanism of the walking oil cylinder.
In order that those skilled in the art will better understand the disclosure, the utility model will be described in further detail with reference to the accompanying drawings and specific embodiments.
It should be noted that the following directional terms such as "upper end, lower end, left side, right side" and the like are defined based on the drawings of the specification.
Referring to fig. 1 to 4, fig. 1 is a schematic structural diagram of a hydrostatic pile press in the prior art; FIG. 2 is a schematic diagram of a state of a hydrostatic pile driver in the prior art when climbing a slope; FIG. 3 is a schematic view of a connection structure of an automatic compensation control mechanism of a traveling cylinder according to an embodiment of the present invention; FIG. 4 is a schematic structural diagram of a pile driver according to an embodiment of the present invention
The automatic compensation control mechanism for the walking oil cylinder comprises the walking oil cylinder 4 and a compensation oil cylinder 100, wherein the walking oil cylinder 4 realizes longitudinal relative position change between the pile driver body 1 and the long ship 3 through telescopic motion, so that the longitudinal movement of the body 1 is realized; when the pile driver runs and touches the uneven ground, even the ground has a certain slope, the running oil cylinder 4 reaches a certain extending amount, at the moment, the compensation oil cylinder 100 provides the moving position compensation for the relative distance of the running trolley 5 on the long ship 3, so as to improve the stress condition of the oil cylinder and each structural component of the machine body 1 when the pile driver runs.
It should be noted that the compensation cylinder 100 is used for adjusting the installation distance of the structural member of the cylinder of the traveling cylinder 4 to prevent the cylinder or the structural member from being damaged. The compensation oil cylinder 100 is arranged between the front lifting oil cylinder and the rear lifting oil cylinder of the machine body 1, one end of a piston rod of the walking oil cylinder 4 is hinged with the long ship 3, one end of a piston rod of the compensation oil cylinder 100 is hinged with a cylinder body of the walking oil cylinder 4, and one end of the cylinder body of the compensation oil cylinder 100 is hinged with the long ship 3. When the pile press walks and meets the condition that the ground is uneven or even has a certain gradient, at the moment, a piston rod of a lifting oil cylinder in front of the machine body 1 retracts, so that the front part of a long ship 3 positioned below the machine body 1 is lifted, and the ascending is facilitated, at the moment, the compensation oil cylinder 100 provides movable position compensation for the relative distance of a walking trolley 5 on the long ship 3, and the stress condition of the oil cylinder and each structural component of the machine body 1 when the pile press walks is improved.
Further, the automatic compensation control mechanism of the walking oil cylinder 4 further comprises a control valve, the control valve is communicated with a rod cavity and a rodless cavity of the walking oil cylinder 4, the rod cavity of the walking oil cylinder 4 is communicated with a rod cavity of the compensation oil cylinder 100, and the rodless cavity of the walking oil cylinder 4 is communicated with a rodless cavity of the compensation oil cylinder 100.
Of course, according to actual needs, the control valve may be specifically configured as a multi-way directional control valve, and the directional function of the valve body may be realized by manually controlling the movement of the valve core of the directional control valve, where the control valve includes a first chamber and a second chamber. The reversing valve is connected with an external control oil source which is used for providing pressure oil for the reversing valve, and the pressure oil enters the cylinder bodies of the walking oil cylinder 4 and the compensation oil cylinder 100 through the reversing valve.
Therefore, when the long ship 3 walks on the slope ground, the piston rod of the compensation oil cylinder 100 needs to extend to realize length compensation, and it can be seen that pressure oil flows into the rodless cavity of the walking oil cylinder 4 through the oil outlet B of the reversing valve, and the pressure oil in the rodless cavity of the walking oil cylinder 4 flows into the rodless cavity of the compensation oil cylinder 100, so that the piston rod of the compensation oil cylinder 100 has extension control force; when the long ship 3 transits from the sloping ground to the flat ground, the piston rod of the compensation oil cylinder 100 needs to retract, pressure oil is discharged from the oil outlet A of the reversing valve and enters the rod cavity of the walking oil cylinder 4, and the pressure oil in the rod cavity of the walking oil cylinder 4 enters the rod cavity of the compensation oil cylinder 100, so that the piston rod of the compensation oil cylinder 100 can have retraction control force.
Compared with the traditional mode that the compensating oil cylinder 100 and the control reversing valve are not arranged, the automatic compensation control mechanism of the walking oil cylinder 4 provided by the embodiment of the utility model can control the piston rod of the compensating oil cylinder 100 to stretch out in a self-adaptive manner through the reversing valve, so that the self-adaptive length compensation can be carried out on the original fixed structural length within the bearable range of the pile pressing machine structure, the structural stress can be reduced to the bearable range, and the problems of functional faults such as deformation, cracking and the like caused by the walking of the oil cylinder and the structural member in a work place with severe environment are solved; meanwhile, the automatic compensation control mechanism of the walking oil cylinder is simple in structure, convenient to install and maintain and low in cost.
Specifically, a rod cavity of the traveling cylinder 4 is provided with a first oil port 101, a rodless cavity of the traveling cylinder 4 is provided with a second oil port 103, the first oil port 101 is connected with a first three-way joint, and the second oil port 103 is connected with a second three-way joint. The first three-way joint is connected with an oil outlet A port of the control valve through a first pipeline 102, so that a rod cavity of the walking oil cylinder 4 is communicated with a first cavity of the control valve; the second three-way joint is connected with an oil outlet port B of the control valve through a second pipeline 104, so that the rodless cavity of the walking oil cylinder 4 is communicated with the second cavity of the control valve.
Wherein, the first conduit 102 is specifically a bent pipe, such as a soft hose; the second pipeline 104 comprises a first steel pipe and a first hose, one end of the first steel pipe is connected with the second three-way joint, the other end of the first steel pipe is connected with one end of the first hose, and the other end of the first hose is connected with an oil outlet B port of the control valve.
Meanwhile, a rod chamber of the compensation cylinder 100 is provided with a third oil port 105, and the first three-way joint is communicated with the third oil port 105 through a third pipeline 106. The third pipeline 106 includes a second steel pipe and a second hose, the second steel pipe is an L-shaped pipe, one end of the second steel pipe is connected to the first three-way joint, the other end of the second steel pipe is connected to one end of the second hose, and the other end of the second hose is communicated with the third oil port 105.
In addition, a rodless cavity of the compensation cylinder 100 is provided with a fourth oil port 107, and the second three-way joint is communicated with the fourth oil port 107 through a fourth pipeline 108. Of course, the fourth conduit 108 is embodied as an elbow, such as a flexible hose.
That is, the first oil port 101 of the rod cavity of the traveling oil cylinder 4 is transited through the first pipeline 102 and then connected to the oil outlet a of the change-over valve, and meanwhile, a branch of oil is branched from the first oil port 101 through the first three-way valve, and is transited through the third pipeline 106 and then connected to the third oil port 105 of the rod cavity of the compensation oil cylinder 100; the second oil port 103 of the rodless cavity of the traveling oil cylinder 4 is connected with an oil outlet port B of the multi-way reversing valve after being transited through a second pipeline 104, and meanwhile, one way of oil is branched from the second oil port 103 through a second three-way valve and is connected with a fourth oil port 107 of the rodless cavity of the compensation oil cylinder 100 through a fourth pipeline 108.
Therefore, when the long ship 3 walks on the sloping ground, the piston rod of the compensation oil cylinder 100 needs to extend, and at the moment, pressure oil is discharged from the port B of the multi-way reversing valve, so that the piston rod of the compensation oil cylinder 100 can have extension control force; when the long ship 3 transits from the sloping ground to the flat ground, the piston rod of the compensation oil cylinder 100 needs to retract, and at the moment, pressure oil is output from the port A of the multi-way reversing valve, so that the piston rod of the compensation oil cylinder 100 has retraction control force.
The utility model provides a pile press, which comprises an automatic compensation control mechanism of a walking oil cylinder described in the specific embodiment; other parts of the pile press can be referred to the prior art and are not expanded herein.
It should be noted that in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.
The pile driver and the automatic compensation control mechanism of the walking oil cylinder thereof provided by the utility model are described in detail above. The principles and embodiments of the present invention have been described herein using specific examples, which are set forth only to help understand the principles of the present invention and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. The automatic compensation control mechanism for the walking oil cylinder is characterized by comprising the walking oil cylinder (4) and a compensation oil cylinder (100) connected with the walking oil cylinder (4), and further comprising a control valve communicated with a rod cavity and a rodless cavity of the walking oil cylinder (4), wherein the rod cavity of the walking oil cylinder (4) is communicated with the rod cavity of the compensation oil cylinder (100), and the rodless cavity of the walking oil cylinder (4) is communicated with the rodless cavity of the compensation oil cylinder (100).
2. The automatic compensation control mechanism of the walking oil cylinder as claimed in claim 1, wherein the rod cavity of the walking oil cylinder (4) is provided with a first oil port (101), the first oil port (101) is connected with a first three-way joint, and the first three-way joint is communicated with the first cavity of the control valve through a first pipeline (102); and a second oil port (103) is formed in a rodless cavity of the walking oil cylinder (4), the second oil port (103) is connected with a second three-way joint, and the second three-way joint is communicated with a second cavity of the control valve through a second pipeline (104).
3. The automatic compensation control mechanism of the walking oil cylinder as claimed in claim 2, wherein the rod chamber of the compensation oil cylinder (100) is provided with a third oil port (105), and the first three-way joint is communicated with the third oil port (105) through a third pipeline (106).
4. The automatic compensation control mechanism for the walking cylinder as claimed in claim 2, wherein the rodless cavity of the compensation cylinder (100) is provided with a fourth oil port (107), and the second three-way joint is communicated with the fourth oil port (107) through a fourth pipeline (108).
5. The automatic compensation control mechanism for the walking cylinder as claimed in claim 2, wherein the second pipeline (104) comprises a first steel pipe and a first hose, one end of the first steel pipe is connected with the second three-way joint, the other end of the first steel pipe is connected with one end of the first hose, and the other end of the first hose is communicated with the second cavity of the control valve.
6. The automatic compensation control mechanism for the walking cylinder as claimed in claim 3, wherein the third pipeline (106) comprises a second steel pipe and a second hose, one end of the second steel pipe is connected with the first three-way joint, the other end of the second steel pipe is connected with one end of the second hose, and the other end of the second hose is communicated with the third oil port (105).
7. The walking cylinder automatic compensation control mechanism of claim 4, characterized in that the first conduit (102) and the fourth conduit (108) are both elbows.
8. The automatic compensation control mechanism for a traveling cylinder according to any one of claims 1 to 7, wherein the control valve is a direction valve.
9. The automatic walk cylinder compensation control mechanism of claim 8, further comprising an oil source connected to the directional valve for providing pressurized oil.
10. A pile driver, characterized by comprising the automatic compensation control mechanism of a walking cylinder according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123316396.5U CN216689398U (en) | 2021-12-27 | 2021-12-27 | Pile press and walking oil cylinder automatic compensation control mechanism thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123316396.5U CN216689398U (en) | 2021-12-27 | 2021-12-27 | Pile press and walking oil cylinder automatic compensation control mechanism thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216689398U true CN216689398U (en) | 2022-06-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123316396.5U Active CN216689398U (en) | 2021-12-27 | 2021-12-27 | Pile press and walking oil cylinder automatic compensation control mechanism thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216689398U (en) |
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2021
- 2021-12-27 CN CN202123316396.5U patent/CN216689398U/en active Active
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