CN214499123U - Oil way joint protection device of pull-back sliding jack - Google Patents
Oil way joint protection device of pull-back sliding jack Download PDFInfo
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- CN214499123U CN214499123U CN202120362742.4U CN202120362742U CN214499123U CN 214499123 U CN214499123 U CN 214499123U CN 202120362742 U CN202120362742 U CN 202120362742U CN 214499123 U CN214499123 U CN 214499123U
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Abstract
The utility model belongs to the technical field of hydraulic supports, in particular to an oil circuit joint protection device of a pull-back sliding jack, wherein an oil circuit interface communicated with a rodless cavity and an oil circuit interface communicated with a rod cavity are both arranged at the end part of a piston rod, a piston rod mounting component is arranged at the side surface of a hydraulic support base, and the piston rod mounting component comprises a connecting plate fixed with the hydraulic support base and an ear plate arranged perpendicular to the connecting plate; the piston rod is hinged with the lug plate through a pin shaft, a baffle plate is further arranged above the piston rod and is movably connected with the connecting plate, a through hole through which an oil supply pipe passes is formed in the baffle plate, and the oil pipe passes through the through hole in the baffle plate and is connected with a corresponding oil circuit interface on the piston rod; the cylinder bottom of the pull backward sliding jack is connected with the rear scraper conveyor through a chain. The oil line joint is concentrated at the piston rod head, and the protection of the oil line interface of the rodless cavity and the oil line interface of the rod cavity of the backward sliding jack is further completed through the protection of the piston rod head, so that the working efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of hydraulic support, concretely relates to oil circuit joint protection device of swift current jack after drawing.
Background
The hydraulic support for caving coal is key equipment for caving coal mining, and in the using process, the hydraulic support is connected with the rear scraper conveyor by a rear sliding jack, and the rear scraper conveyor and the hydraulic support are pulled to follow up in the coal mining direction by the rear sliding jack. The rod-free cavity oil way joint and the rod cavity oil way joint of the existing pull-back sliding jack are both arranged on the cylinder body, no corresponding protective measures are provided, the damage of the oil way joint of the pull-back sliding jack not only affects the propelling speed of a working face, but also directly affects the normal production of the working face, and the labor intensity of worker maintenance is increased.
Disclosure of Invention
In order to overcome the shortcomings of the prior art, the utility model provides an oil circuit joint protection device of a pull-back sliding jack, which is convenient for protecting the oil circuit joint, wherein the oil circuit joint is centralized at the head of a piston rod.
The utility model discloses a realize through following technical scheme: an oil line joint protection device of a pull-back sliding jack is characterized in that an oil line interface communicated with a rodless cavity and an oil line interface communicated with a rod cavity are arranged at the end part of a piston rod, a piston rod mounting assembly is arranged on the side surface of a hydraulic support base, and the piston rod mounting assembly comprises a connecting plate fixed with the hydraulic support base and an ear plate arranged perpendicular to the connecting plate; the piston rod is hinged with the lug plate through a pin shaft, a baffle plate is further arranged above the piston rod and is movably connected with the connecting plate, a through hole through which an oil supply pipe passes is formed in the baffle plate, and the oil pipe passes through the through hole in the baffle plate and is connected with a corresponding oil circuit interface on the piston rod; the cylinder bottom of the pull backward sliding jack is connected with the rear scraper conveyor through a chain.
Furthermore, the baffle is of a U-shaped structure, and one side edge of the U-shaped structure of the baffle is movably connected with the connecting plate through a bolt.
Furthermore, a stop block for limiting the pin shaft is arranged at the bottom of the inner side of the U-shaped baffle.
Furthermore, a sheath is further sleeved on the piston rod, after the assembly of the backward sliding jack is completed, the sheath is located inside the U-shaped baffle, and the oil path interface of the rodless cavity and the oil path interface of the rod cavity are both located on the piston rod between the lug plate and the sheath.
The utility model has the advantages that: this application is through changing the oil feed mode of the no pole chamber of swift current jack after pulling and having the pole chamber, and the oil circuit interface that will pull the no pole chamber of swift current jack after pulling all sets up on the piston rod with the oil circuit interface that has the pole chamber, then reaches the oil circuit interface for the no pole chamber of swift current jack after pulling and the oil circuit interface safety protection's that has the pole chamber effect through the safety protection to piston rod department again, has reduced the maintenance cost of equipment, has improved work efficiency.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a partial enlarged view of the present invention;
FIG. 3 is a schematic diagram of the direction of an oil path in a piston rod of the pull-back jack of the present invention;
in the figure, the hydraulic support comprises a piston rod mounting assembly 1, a connecting plate 1-1, a lug plate 1-2, a baffle plate 2-1, a stop block 3, a sheath 4, a pull-back jack 4-1, a piston rod 4-2, a cylinder bottom 5, a hydraulic support base 6 and a rear scraper conveyor.
Detailed Description
The invention will be further explained below with reference to the drawings and examples.
As shown in fig. 1 to 3, in the oil line joint protection device of the pull-back jack, an oil line interface communicated with a rodless cavity and an oil line interface communicated with a rod cavity of the pull-back jack 4 are arranged at the end part of a piston rod 4-1. The side face of a hydraulic support base 5 is provided with a piston rod mounting assembly 1, the piston rod mounting assembly 1 comprises a connecting plate 1-1 fixed with the hydraulic support base 5 and an ear plate 1-2 arranged perpendicular to the connecting plate 1-1, a piston rod 4-1 is hinged to the ear plate 1-2 through a pin shaft, a baffle plate 2 is further arranged above the piston rod 4-1, the baffle plate 2 is of a U-shaped structure, one side edge of the U-shaped structure of the baffle plate 2 is movably connected with the connecting plate 1-1 through a bolt, the U-shaped bottom of the baffle plate 2 is located above an oil way interface of a rodless cavity of the pull-back slide jack and an oil way interface of a rod cavity, and the baffle plate 2 is used for protecting the oil way interface of the rodless cavity of the pull-back slide jack and the oil way interface of the rod cavity. The baffle 2 is provided with a through hole through which an oil supply pipe passes, and the oil pipe passes through the through hole on the baffle 2 and is connected with a corresponding oil way interface on the piston rod 4-1. The cylinder bottom 4-2 of the pull back sliding jack 4 is connected with a rear scraper conveyor 6 through a chain.
As an improvement of this embodiment, a stopper 2-1 for limiting the pin shaft is disposed at the bottom of the U-shaped inner side of the baffle 2, and when the baffle 2 is mounted and fixed, the stopper 2-1 limits the pin shaft.
As an improvement of the embodiment, a sheath 3 is further sleeved on the piston rod 4-1, after the pull-back jack 4 is assembled, the sheath 3 is located inside the U-shaped baffle 2, and both the oil path interface of the rodless cavity and the oil path interface of the rod cavity are located on the piston rod 4-1 between the ear plate 1-2 and the sheath 3. The sheath 3 prevents the gangue between the frames from being squeezed in from the rear part to cause damage to the oil way joint.
This application is through changing the oil feed mode of the no pole chamber of swift current jack after pulling and having the pole chamber, and the oil circuit interface that will pull the no pole chamber of swift current jack after pulling all sets up on the piston rod with the oil circuit interface that has the pole chamber, then reaches the oil circuit interface for the no pole chamber of swift current jack after pulling and the oil circuit interface safety protection's that has the pole chamber effect through the safety protection to piston rod department again, has reduced the maintenance cost of equipment, has improved work efficiency.
Claims (4)
1. The utility model provides an oil circuit connects protection device who draws swift current jack after which characterized in that: the oil way interface communicated with the rodless cavity and the oil way interface communicated with the rod cavity of the pull-back sliding jack (4) are arranged at the end part of a piston rod (4-1), a piston rod mounting assembly (1) is arranged on the side surface of a hydraulic support base (5), and the piston rod mounting assembly (1) comprises a connecting plate (1-1) fixed with the hydraulic support base (5) and an ear plate (1-2) arranged perpendicular to the connecting plate (1-1); the piston rod (4-1) is hinged with the lug plate (1-2) through a pin shaft, a baffle plate (2) is further arranged above the piston rod (4-1), the baffle plate (2) is movably connected with the connecting plate (1-1), a through hole for an oil supply pipe to pass through is formed in the baffle plate (2), and the oil pipe passes through the through hole in the baffle plate (2) and is connected with a corresponding oil way interface on the piston rod (4-1); the cylinder bottom (4-2) of the pull backward sliding jack (4) is connected with a rear scraper conveyor (6) through a chain.
2. The oil line joint protection device of a pull-back jack according to claim 1, wherein: the baffle (2) is of a U-shaped structure, and one side edge of the U-shaped structure of the baffle (2) is movably connected with the connecting plate (1-1) through bolts.
3. The oil line joint protection device of a pull-back jack according to claim 2, wherein: and a stop block (2-1) for limiting the pin shaft is arranged at the bottom of the inner side of the U-shaped side of the baffle (2).
4. The oil line joint protection device of a pull-back jack according to claim 2, wherein: the piston rod (4-1) is further sleeved with a sheath (3), after the pull-back sliding jack (4) is assembled, the sheath (3) is located inside the U-shaped baffle (2), and both the oil circuit interface of the rodless cavity and the oil circuit interface of the rod cavity are located on the piston rod (4-1) between the lug plate (1-2) and the sheath (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120362742.4U CN214499123U (en) | 2021-02-08 | 2021-02-08 | Oil way joint protection device of pull-back sliding jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120362742.4U CN214499123U (en) | 2021-02-08 | 2021-02-08 | Oil way joint protection device of pull-back sliding jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214499123U true CN214499123U (en) | 2021-10-26 |
Family
ID=78220204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120362742.4U Active CN214499123U (en) | 2021-02-08 | 2021-02-08 | Oil way joint protection device of pull-back sliding jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214499123U (en) |
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2021
- 2021-02-08 CN CN202120362742.4U patent/CN214499123U/en active Active
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