CN211116947U - Oil pressure buffering positioning back-jacking system and oil pressure cooling system - Google Patents

Oil pressure buffering positioning back-jacking system and oil pressure cooling system Download PDF

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Publication number
CN211116947U
CN211116947U CN201921603935.3U CN201921603935U CN211116947U CN 211116947 U CN211116947 U CN 211116947U CN 201921603935 U CN201921603935 U CN 201921603935U CN 211116947 U CN211116947 U CN 211116947U
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oil
cylinder
circuit unit
plug
buffer
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CN201921603935.3U
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Chinese (zh)
Inventor
林瑞坤
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Index Automatic Technology Co ltd
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Index Automatic Technology Co ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/04—Special measures taken in connection with the properties of the fluid
    • F15B21/042—Controlling the temperature of the fluid
    • F15B21/0423—Cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
    • F15B15/226—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke having elastic elements, e.g. springs, rubber pads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/62—Cooling or heating means

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Actuator (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

The utility model relates to an oil pressure buffering positioning back-jacking system and an oil pressure cooling system, the oil pressure buffering positioning back-jacking system comprises an actuating cylinder, an oil cylinder and an actuating element, wherein the actuating element is actuated by the oil pressure of the oil cylinder; one end of the oil circuit unit is connected with the oil cylinder of the actuating cylinder and is provided with at least one-way valve and a pressure regulating valve which are connected in parallel; the buffer cylinder is provided with a cylinder body connected with the oil way unit, an oil plug which is hermetically movable in the cylinder body, a spring which is abutted against the oil plug, a screw which is abutted against the spring, a first nut which is screwed on the screw, and a positioning plate unit which is connected with the cylinder body and used for blocking the first nut. Alternatively, the spring may be modified to be a gas lock and driven by a source of pneumatic pressure. The utility model also provides an oil pressure cooling system.

Description

Oil pressure buffering positioning back-jacking system and oil pressure cooling system
Technical Field
The utility model relates to an oil pressure action is relevant, especially a top system is returned in oil pressure buffering location.
Background
The conventional hydraulic cushion positioning and ejecting system is still in need of improvement in order to achieve various functions, and has complicated structure, high cost and reliable operation. Furthermore, the conventional hydraulic circuit cannot be properly cooled after the hydraulic oil generates high temperature, and the improvement thereof is still needed.
Disclosure of Invention
In view of the above, it is a primary object of the present invention to provide an oil pressure buffering and positioning back-jacking system, which combines the buffering, positioning and back-jacking functions together to simplify the structure thereof.
In view of the above-mentioned drawbacks of the prior art, another object of the present invention is to provide an oil pressure cooling system, which can make the hydraulic oil with higher temperature in the actuating cylinder return to the cushion cylinder through another pipeline to obtain the effect of cooling circulation.
In order to achieve the above object, the utility model provides an oil pressure buffering location system of returning to top which characterized in that includes: an actuating cylinder 10 having an oil cylinder 11, an actuating member 12 being hydraulically actuated by the oil cylinder 11; an oil circuit unit 20, one end of which is connected with the oil cylinder 11 of the actuating cylinder 10, and which is provided with at least one-way valve 21 and a pressure regulating valve 22 which are connected in parallel; a buffer cylinder 30 having a cylinder body 31 connected to the oil passage unit 20, an oil plug 32 sealingly movable in the cylinder body 31, a spring 35A abutting against the oil plug 32, a screw 36 abutting against the spring 35A, a bolt 361 screwed onto the screw 36 for abutting against the oil plug 32, a first nut 37 screwed onto the screw 36, and a positioning plate unit 39 connected to the cylinder body 31 for stopping the first nut 37; and an oil pressure source 40 connected to the oil path unit 20 and the cushion cylinder 30.
A positioning and shifting unit 60 is further included for adjusting and controlling the position of the first nut 37 relative to the screw 36.
In order to achieve the above object, the utility model also provides an oil pressure buffering location system of returning to top, its characterized in that includes: an actuating cylinder 10 having an oil cylinder 11, an actuating member 12 being hydraulically actuated by the oil cylinder 11; an oil circuit unit 20, one end of which is connected with the oil cylinder 11 of the actuating cylinder 10, and which is provided with at least one-way valve 21 and a pressure regulating valve 22 which are connected in parallel; a buffer cylinder 30 having a cylinder body 31 connected to the oil circuit unit 20, an oil plug 32 sealingly movable in the cylinder body 31, a spring 35A abutting against the oil plug 32, a screw 36 connected to the cylinder body 31, a first nut 37 threadedly disposed on the screw 36, and a positioning plate unit 39 abutting against the spring 35A for stopping the first nut 37; and an oil pressure source 40 connected to the oil path unit 20 and the cushion cylinder 30.
A positioning and shifting unit 60 is further included for adjusting and controlling the position of the first nut 37 relative to the screw 36.
In order to achieve the above object, the utility model also provides an oil pressure buffering location system of returning to top, its characterized in that includes: an actuating cylinder 10 having an oil cylinder 11, an actuating member 12 being hydraulically actuated by the oil cylinder 11; an oil circuit unit 20, one end of which is connected with the oil cylinder 11 of the actuating cylinder 10, and which is provided with at least one-way valve 21 and a pressure regulating valve 22 which are connected in parallel; a buffer cylinder 30 having a cylinder 31 connected to the oil circuit unit 20, an oil plug 32 sealingly movable in the cylinder 31, a spring 35A abutting against the oil plug 32, a second cylinder 312, a cylinder rod 36A abutting against the spring 35A, a piston 37A connected to the cylinder rod 36A and sealingly movable in the second cylinder 312 to form a third oil chamber 313 and a fourth oil chamber 314, the third oil chamber 313 and the fourth oil chamber 314 respectively communicating with a pipeline 315, 316; and an oil pressure source 40 connected to the oil path unit 20 and the cushion cylinder 30.
Wherein the pipelines 315, 316 of the cushion cylinder 30 are communicated with the third cylinder 41 of the oil pressure source 40.
A positioning control unit 60 is further included for adjusting and controlling the positions of the first nut 37 and the second nut 38 relative to the screw 36.
A positioning control unit 60 is further included for adjusting and controlling the positions of the first nut 37 and the second nut 38 relative to the screw 36.
In order to achieve the above object, the utility model also provides an oil pressure buffering location system of returning to top, its characterized in that includes: an actuating cylinder 10 having an oil cylinder 11, an actuating member 12 being hydraulically actuated by the oil cylinder 11; an oil circuit unit 20, one end of which is connected with the oil cylinder 11 of the actuating cylinder 10, and which is provided with at least one-way valve 21 and a pressure regulating valve 22 which are connected in parallel; a buffer cylinder 30 having a cylinder body 31 connected to the oil circuit unit 20, an oil plug 32 sealingly movable in the cylinder body 31, an oil plug 35B connected to the oil plug 32, a screw 36 connected to the air plug 35B, a first nut 37 and a second nut 38 threadedly mounted on the screw 36, and a positioning plate unit 39 connected to the cylinder body 31 for blocking the first nut 37 and the second nut 38; and an air pressure source 50 for pushing the air plug 35B of the buffer cylinder 30 to return.
In order to achieve the above object, the utility model also provides an oil pressure buffering location system of returning to top, its characterized in that includes: an actuating cylinder 10 having an oil cylinder 11, an actuating member 12 being hydraulically actuated by the oil cylinder 11; an oil circuit unit 20, one end of which is connected with the oil cylinder 11 of the actuating cylinder 10, and which is provided with at least one-way valve 21 and a pressure regulating valve 22 which are connected in parallel; a buffer cylinder 30 having a cylinder body 31 connected to the oil circuit unit 20, an oil plug 32 sealingly movable in the cylinder body 31, an air plug 35B connected to the oil plug 32, a screw 36 connected to the cylinder body 31, a first nut 37 and a second nut 38 threadedly mounted on the screw 36, and a positioning plate unit 39 connected to the air plug 35B for blocking the first nut 37 and the second nut 38; and an air pressure source 50 for pushing the air plug 35B of the buffer cylinder 30 to return.
As described above, according to the present invention, the check valve 21 and the pressure regulating valve 22 of the oil circuit unit 20 are respectively connected to the oil cylinder 11 of the actuating cylinder 10 through a pipeline, and the cylinder body 31 of the buffer cylinder 30 is respectively connected to the check valve 21 and the pressure regulating valve 22 through a pipeline.
A cooling unit 70 is also included to communicate the cylinder 10 with the pressure regulating valve 22.
A cooling unit 70 is also included to communicate the pressure regulating valve 22 with the damping cylinder 30.
In order to achieve the above object, the utility model also provides an oil pressure cooling system, its characterized in that includes: an actuating cylinder 10 having an oil cylinder 11, an actuating member 12 being hydraulically actuated by the oil cylinder 11; an oil circuit unit 20, one end of which is connected to the oil cylinder 11 of the actuating cylinder 10, and which has at least one check valve 21 and a pressure regulating valve 22 respectively connected to the oil cylinder 11 of the actuating cylinder 10 by a pipeline; a damping cylinder 30 having a cylinder body 31 connected to the check valve 21 and the pressure regulating valve 22 of the oil circuit unit 20 by a pipe, respectively; the hydraulic oil of the cushion cylinder 30 flows to the cylinder 11 of the working cylinder 10 through the check valve 21 of the oil passage unit 20 to raise the actuator 12 thereof, and the actuator 12 of the working cylinder 10 descends to return the hydraulic oil of the cylinder 11 thereof to the cylinder body 31 of the cushion cylinder 30 through the pressure regulating valve 22.
A cooling unit 70 is also included to communicate the cylinder 10 with the pressure regulating valve 22.
A cooling unit 70 is also included to communicate the pressure regulating valve 22 with the damping cylinder 30.
Adopt above-mentioned technical scheme, the utility model discloses a spring that sets up can effectively provide the buffer power way to produce the resilience force in the shortest time and push back the oil plug, and flow back this hydro-cylinder with fluid and produce the cushioning effect of will, and first nut then can provide required locating position. The pneumatic source provides buffer for the buffer cylinder, the oil flows back to the oil cylinder to generate the required buffer effect and provides the function of back lifting, and the first nut and the second nut can provide the required positioning position.
Drawings
FIG. 1 is a combination view of a preferred embodiment of the present invention;
FIG. 2 is an operational state diagram of FIG. 1;
FIG. 3 is a schematic view of a positioning control group according to a preferred embodiment of the present invention;
FIG. 4 is a combination view of another preferred embodiment of the present invention;
FIG. 5 is a schematic view of another preferred embodiment of the present invention with a positioning control group;
FIG. 6 is a combination view of yet another preferred embodiment of the present invention;
FIG. 7 is a combination view of yet another preferred embodiment of the present invention;
FIG. 8 is a combination view of another preferred embodiment of the present invention;
FIG. 9 is an operational state diagram of FIG. 8;
FIG. 10 is a schematic view of another preferred embodiment of the present invention with a positioning control unit;
FIG. 11 is a combination view of another preferred embodiment of the present invention;
FIG. 12 is a schematic view of another preferred embodiment of the present invention with a positioning and moving control set;
FIG. 13 is a schematic diagram of a dual circuit modification of a preferred embodiment of the present invention;
FIG. 14 is a schematic diagram of a dual circuit configuration of another embodiment of the present invention;
FIG. 15 is a schematic diagram of another application of the dual-circuit structure of the present invention;
FIG. 16 is a schematic diagram of another application of the dual-loop structure of the present invention;
fig. 17 is a schematic diagram of another application of the dual-circuit structure of the present invention;
fig. 18 is a perspective view of a dual circuit structure of the present invention;
fig. 19 is a perspective view of another dual-loop structure according to the present invention.
Detailed Description
The structure and function of the present invention will be described in detail with reference to the following embodiments and accompanying drawings.
As shown in fig. 1 and fig. 2, the utility model provides an oil pressure buffering positioning back-jacking system, includes:
an actuator cylinder 10 having an oil cylinder 11, an actuator 12 actuated by the oil pressure of the oil cylinder 11;
an oil circuit unit 20, one end of which is connected to the oil cylinder 11 of the actuating cylinder 10, and which has at least one check valve 21 and a pressure regulating valve 22 connected in parallel;
the buffer cylinder 30 has a cylinder body 31 connected to the oil passage unit 20, an oil plug 32 sealingly movable in the cylinder body 31, a cooling line 33 annularly disposed on the oil plug 32, a spring 35A abutting against the oil plug 32, a screw 36 abutting against the spring 35A, a first nut 37 threadedly disposed on the screw 36, two bolts 361 threadedly disposed on the screw 36 for abutting against the oil plug 32, and a positioning plate unit 39 connected to the cylinder body 31 for blocking the first nut 37.
An oil pressure source 40 is connected to the oil passage unit 20 and the cushion cylinder 30. The hydraulic source 40 has a third cylinder 41, a piston 42 movable in the third cylinder 41, and a motor 43 coupled to the piston 42 for providing a back-up function.
In this embodiment, the spring 35A can effectively provide a buffering force, and generate a resilient force to push the oil plug 32 back in the shortest time, so as to return the oil to the oil cylinder 11 to generate the desired buffering effect; the first nut 37 may provide the desired location.
The hydraulic buffer positioning and ejecting system shown in fig. 3 further includes a positioning control unit 60 for adjusting and controlling the position of the first nut 37 relative to the screw 36.
As shown in fig. 4, for the utility model provides an oil pressure buffering location system of returning to top includes:
an actuator cylinder 10 having an oil cylinder 11, an actuator 12 actuated by the oil pressure of the oil cylinder 11;
an oil circuit unit 20, one end of which is connected to the oil cylinder 11 of the actuating cylinder 10, and which has at least one check valve 21 and a pressure regulating valve 22 connected in parallel;
the buffer cylinder 30 has a cylinder body 31 connected to the oil passage unit 20, an oil plug 32 sealingly movable in the cylinder body 31, a cooling line 33 annularly disposed on the oil plug 32, a spring 35A abutting against the oil plug 32, a screw 36 connected to the cylinder body 31, a first nut 37 threadedly disposed on the screw 36, two bolts 361 threadedly moved on the screw 36 for abutting against the oil plug 32, and a positioning plate unit 39 abutting against the spring 35A for stopping the first nut 37.
An oil pressure source 40 is connected to the oil passage unit 20 and the cushion cylinder 30. In this embodiment, the hydraulic source 40 has a third cylinder 41, a piston 42, and a motor 43 to provide the back-up function.
The present embodiment is different from the previous embodiment in that the screw 36 and the positioning plate unit 39 are disposed at different positions, but they can also perform the same buffering and positioning functions, and the objective of the present invention is also achieved.
The hydraulic buffer positioning and ejecting system shown in fig. 5 further includes a positioning control unit 60 for adjusting and controlling the position of the first nut 37 relative to the screw 36.
As shown in fig. 6, the present invention provides an oil pressure buffering positioning and back-jacking system, which is substantially the same as the first embodiment, and has the following different points:
the motor 43 of the hydraulic source 40 is replaced with a cylinder 43A having a piston 44 connected to the piston 42 and sealingly movable in the cylinder 43A.
As shown in fig. 7, the utility model provides an oil pressure buffering location system of returning to top includes:
an actuator cylinder 10 having an oil cylinder 11, an actuator 12 actuated by the oil pressure of the oil cylinder 11;
an oil circuit unit 20, one end of which is connected to the oil cylinder 11 of the actuating cylinder 10, and which has at least one check valve 21 and a pressure regulating valve 22 connected in parallel;
a buffer cylinder 30 having a cylinder 31 connected to the oil passage unit 20, an oil plug 32 sealingly movable in the cylinder 31, a spring 35A abutting against the oil plug 32, a second cylinder 312, a rod 36A abutting against the spring 35A, a piston 37A connected to the rod 36A and sealingly movable in the second cylinder 312 to form a third oil chamber 313 and a fourth oil chamber 314, the third oil chamber 313 and the fourth oil chamber 314 being respectively communicated with a pipeline 315, 316; can be used for positioning function and can be closed after being adjusted.
An oil pressure source 40 is connected to the oil circuit unit 20 and the cushion cylinder 30 for providing a back-up function.
In this embodiment, the lines 315, 316 of the cushion cylinder 30 communicate with the third cylinder 41 of the oil pressure source 40. However, the third cylinder 41 of the hydraulic source 40 may not be connected and another hydraulic unit (not shown) may be connected. Can be used for positioning function and can be closed after being adjusted.
As shown in fig. 8 and 9, the present invention provides an oil pressure buffering and positioning back-jacking system, which comprises:
an actuator cylinder 10 having an oil cylinder 11, an actuator 12 actuated by the oil pressure of the oil cylinder 11;
an oil circuit unit 20, one end of which is connected to the oil cylinder 11 of the actuating cylinder 10, and which has at least one check valve 21 and a pressure regulating valve 22 connected in parallel;
the buffer cylinder 30 has a cylinder body 31 connected to the oil passage unit 20, an oil plug 32 sealingly movable in the cylinder body 31, a cooling line 33 annularly disposed on the oil plug 32, an air plug 35B connected to the oil plug 32, a screw 36 connected to the air plug 35B, a first nut 37 and a second nut 38 threadedly disposed on the screw 36, and a retainer plate unit 39 connected to the cylinder body 31 for retaining the first nut 37 and the second nut 38.
An air pressure source 50 pushes the air plug 35B of the cushion cylinder 30 to return. The pneumatic source 50 has a first air chamber 51 movably mounted with a first plug 52, a second air chamber 53, and a second plug 54 connected to the first plug 52 movably mounted in the second air chamber 53.
In this embodiment, the pneumatic source 50 provides the buffer cylinder 30 with a buffer effect to return the oil to the cylinder 11 to produce the desired buffer effect and provide a back-up action; the first and second nuts 37, 38 provide the desired location.
The hydraulic buffer positioning and ejecting system as shown in fig. 10 further includes a positioning control unit 60 for adjusting and controlling the positions of the first nut 37 and the second nut 38 relative to the screw 36.
As shown in fig. 11, the utility model provides an oil pressure buffering location system of returning top includes:
an actuator cylinder 10 having an oil cylinder 11, an actuator 12 actuated by the oil pressure of the oil cylinder 11;
an oil circuit unit 20, one end of which is connected to the oil cylinder 11 of the actuating cylinder 10, and which has at least one check valve 21 and a pressure regulating valve 22 connected in parallel;
a buffer cylinder 30 having a cylinder body 31 connected to the oil passage unit 20, an oil plug 32 sealingly movable in the cylinder body 31, a cooling line 33 annularly provided to the oil plug 32, an air plug 35B connected to the oil plug 32, a screw 36 connected to the cylinder body 31, a first nut 37 and a second nut 38 threadedly provided to the screw 36, and a retainer plate unit 39 connected to the air plug 35B for retaining the first nut 37 and the second nut 38;
an air pressure source 50 pushes the air plug 35B of the cushion cylinder 30 to return.
The present embodiment is different from the previous embodiment in that the screw 36 and the positioning plate unit 39 are disposed at different positions, but they can also perform the same buffering and positioning functions, and the objective of the present invention is also achieved.
The hydraulic buffer positioning and ejecting system as shown in fig. 12 further includes a positioning control unit 60 for adjusting and controlling the positions of the first nut 37 and the second nut 38 relative to the screw 36.
The utility model discloses except above example, can also implement in addition and change like the back:
for example, the oil passage unit 20 is not limited to the one-way valve 21 and the pressure regulating valve 22, and the oil passage unit 20 may have various arrangements of circuits and hydraulic components.
As shown in fig. 13, a schematic diagram of a dual circuit is modified according to a preferred embodiment of the present invention; in which the cylinder 11 of the cylinder 10 is directly connected to the pressure-adjusting valve 22 of the oil passage unit 20 through another pipe, the pressure-adjusting valve 22 of the oil passage unit 20 is also connected to the cylinder body 31 of the cushion cylinder 30 through another pipe, and a cooling unit 70 may be provided before and after the pressure-adjusting valve 22, whereby the hydraulic oil having a relatively high temperature can be appropriately cooled. All of fig. 1 to 7 may be designed as such.
As shown in fig. 14, a schematic diagram of a dual circuit according to another preferred embodiment of the present invention is shown; wherein the cylinder 11 of the cylinder 10 is directly connected to the pressure regulating valve 22 of the oil path unit 20 through another line, the pressure regulating valve 22 of the oil path unit 20 is also connected to the cylinder body 31 of the cushion cylinder 30 through another line, and a cooling unit 70 may be provided before and after the pressure regulating valve 22, whereby the hydraulic oil of higher temperature can be appropriately cooled; all of fig. 8 to 12 may be designed as such.
Fig. 15 is another schematic view of the dual-circuit structure according to the present invention; wherein, the buffer cylinder 30 has an oil chamber for accommodating a predetermined volume of hydraulic oil and leaving a suitable air pressure space.
Fig. 16 is a schematic diagram of another application of the dual-circuit structure of the present invention, wherein the cushion cylinder 30 has a cylinder 31 for accommodating a predetermined volume of hydraulic oil, and has a pneumatic plug 35B for actuating a hydraulic plug 32 to actuate the hydraulic oil in the cylinder 31 of the cushion cylinder 30.
Fig. 17 is a schematic diagram of another application of the dual-circuit structure of the present invention, wherein the damping cylinder 30 has a cylinder 31 for accommodating a predetermined volume of hydraulic oil, and a spring 35A for actuating an oil plug 32 to actuate the hydraulic oil in the cylinder 31 of the damping cylinder 30.
Fig. 18 is a perspective view of a dual circuit structure of the present invention, and various implementations described above may include a cooling unit 70.
Fig. 19 is a perspective view of another dual circuit structure of the present invention, wherein the above embodiments may not include the cooling unit 70.
Thus, the embodiments of FIGS. 13-19 allow the higher temperature hydraulic oil in the cylinder 10 to return to the damping cylinder 30 through another conduit, which is then properly cooled; if the cooling unit 70 is additionally provided, the cooling effect will be better.
Broadly, an oil pressure cooling system comprises a cylinder 10 having a cylinder 11, an actuator 12 hydraulically operated by the cylinder 11; an oil circuit unit 20, one end of which is connected to the oil cylinder 11 of the actuating cylinder 10, and which has at least one check valve 21 and a pressure regulating valve 22 respectively connected to the oil cylinder 11 of the actuating cylinder 10 by a pipeline; a cushion cylinder 30 having a cylinder body 31 connected to the check valve 21 and the pressure regulating valve 22 of the oil circuit unit 20 by a pipe, respectively; the hydraulic oil of the cushion cylinder 30 can flow to the cylinder 11 of the cylinder 10 through the check valve 21 of the oil passage unit 20 to raise the actuator 12 thereof, and the actuator 12 of the cylinder 10 is lowered to return the hydraulic oil of the cylinder 11 thereof to the cylinder body 31 of the cushion cylinder 30 through the pressure regulating valve 22.
The cooling unit 70 may communicate the pressure regulating valve 22 with the conduit of the cushion cylinder 30, or the cooling unit 70 may communicate the cylinder 10 with the conduit of the pressure regulating valve 22.
To sum up, the oil pressure buffering and positioning back-jacking system of the utility model really combines the buffering and positioning back-jacking functions together, so that the structure is provided in the simplest way, thereby really achieving the purpose of the utility model.

Claims (16)

1. An oil pressure buffering positioning back-jacking system, characterized by comprising:
an actuator cylinder (10) having an oil cylinder (11), an actuator (12) being hydraulically actuated by the oil cylinder (11);
an oil circuit unit (20), one end of which is communicated with the oil cylinder (11) of the actuating cylinder (10), and the oil circuit unit is provided with at least one-way valve (21) and a pressure regulating valve (22) which are connected in parallel;
a buffer cylinder (30) having a cylinder body (31) connected to the oil circuit unit (20), an oil plug (32) sealingly movable in the cylinder body (31), a spring (35A) abutting against the oil plug (32), a screw (36) abutting against the spring (35A), a bolt (361) screwed to the screw (36) for abutting against the oil plug (32), a first nut (37) screwed to the screw (36), and a retainer plate unit (39) connected to the cylinder body (31) for retaining the first nut (37);
and the oil pressure source (40) is communicated with the oil circuit unit (20) and the buffer cylinder (30).
2. The oil hydraulic buffer position roof return system of claim 1, wherein: the screw rod adjusting device further comprises a positioning control group (60) for adjusting and controlling the position of the first screw cap (37) relative to the screw rod (36).
3. An oil pressure buffering positioning back-jacking system, characterized by comprising:
an actuator cylinder (10) having an oil cylinder (11), an actuator (12) being hydraulically actuated by the oil cylinder (11);
an oil circuit unit (20), one end of which is communicated with the oil cylinder (11) of the actuating cylinder (10), and the oil circuit unit is provided with at least one-way valve (21) and a pressure regulating valve (22) which are connected in parallel;
the buffer cylinder (30) is provided with a cylinder body (31) connected to the oil circuit unit (20), an oil plug (32) hermetically moves in the cylinder body (31), a spring (35A) abuts against the oil plug (32), a screw rod (36) is connected to the cylinder body (31), a first nut (37) is arranged on the screw rod (36) in a threaded mode, and a positioning plate unit (39) abuts against the spring (35A) for stopping the first nut (37);
and the oil pressure source (40) is communicated with the oil circuit unit (20) and the buffer cylinder (30).
4. The oil hydraulic buffer position recovery system of claim 3, wherein: the screw rod adjusting device further comprises a positioning control group (60) for adjusting and controlling the position of the first screw cap (37) relative to the screw rod (36).
5. An oil pressure buffering positioning back-jacking system, characterized by comprising:
an actuator cylinder (10) having an oil cylinder (11), an actuator (12) being hydraulically actuated by the oil cylinder (11);
an oil circuit unit (20), one end of which is communicated with the oil cylinder (11) of the actuating cylinder (10), and the oil circuit unit is provided with at least one-way valve (21) and a pressure regulating valve (22) which are connected in parallel;
the buffer cylinder (30) is provided with a cylinder body (31) connected to the oil circuit unit (20), an oil plug (32) is hermetically movable in the cylinder body (31), a spring (35A) abuts against the oil plug (32), a second cylinder body (312), a cylinder rod (36A) abuts against the spring (35A), a piston (37A) is connected to the cylinder rod (36A) and hermetically movable in the second cylinder body (312) to form a third oil chamber (313) and a fourth oil chamber (314), and the third oil chamber (313) and the fourth oil chamber (314) are respectively communicated with a pipeline (315) and a pipeline (316);
and the oil pressure source (40) is communicated with the oil circuit unit (20) and the buffer cylinder (30).
6. The oil hydraulic buffer position recovery system of claim 5, wherein: and pipelines (315) and (316) of the buffer cylinder (30) are communicated with a third cylinder body (41) of the oil pressure source (40).
7. An oil pressure buffering positioning back-jacking system, characterized by comprising:
an actuator cylinder (10) having an oil cylinder (11), an actuator (12) being hydraulically actuated by the oil cylinder (11);
an oil circuit unit (20), one end of which is communicated with the oil cylinder (11) of the actuating cylinder (10), and the oil circuit unit is provided with at least one-way valve (21) and a pressure regulating valve (22) which are connected in parallel;
a buffer cylinder (30) having a cylinder body (31) connected to the oil circuit unit (20), an oil plug (32) sealingly movable in the cylinder body (31), an air plug (35B) connected to the oil plug (32), a screw (36) connected to the air plug (35B), a first nut (37) and a second nut (38) threadedly mounted on the screw (36), and a positioning plate unit (39) connected to the cylinder body (31) for blocking the first nut (37) and the second nut (38);
and the air pressure source (50) pushes the air plug (35B) of the buffer cylinder (30) to return.
8. The oil hydraulic buffer position roof return system of claim 7, wherein: and the positioning control group (60) is used for adjusting and controlling the positions of the first screw cap (37) and the second screw cap (38) relative to the screw rod (36).
9. An oil pressure buffering positioning back-jacking system, characterized by comprising:
an actuator cylinder (10) having an oil cylinder (11), an actuator (12) being hydraulically actuated by the oil cylinder (11);
an oil circuit unit (20), one end of which is communicated with the oil cylinder (11) of the actuating cylinder (10), and the oil circuit unit is provided with at least one-way valve (21) and a pressure regulating valve (22) which are connected in parallel;
the buffer cylinder (30) is provided with a cylinder body (31) connected to the oil circuit unit (20), an oil plug (32) hermetically moves in the cylinder body (31), an air plug (35B) connected to the oil plug (32), a screw rod (36) connected to the cylinder body (31), a first nut (37) and a second nut (38) which are arranged on the screw rod (36) in a threaded manner, and a positioning plate unit (39) connected to the air plug (35B) for blocking the first nut (37) and the second nut (38);
and the air pressure source (50) pushes the air plug (35B) of the buffer cylinder (30) to return.
10. The oil hydraulic buffer position roof return system of claim 9, wherein: and the positioning control group (60) is used for adjusting and controlling the positions of the first screw cap (37) and the second screw cap (38) relative to the screw rod (36).
11. The oleo-hydraulic buffer position-return system of any of claims 1 to 10, characterized by: the check valve (21) and the pressure regulating valve (22) of the oil circuit unit (20) are respectively communicated with the oil cylinder (11) of the actuating cylinder (10) through a pipeline, and the cylinder body (31) of the buffer cylinder (30) is respectively connected with the check valve (21) and the pressure regulating valve (22) of the oil circuit unit (20) through a pipeline.
12. The oil hydraulic buffer position roof return system of claim 11, wherein: and a pipeline for communicating the cylinder (10) and the pressure regulating valve (22) is also included in the cooling unit (70).
13. The oil hydraulic buffer position roof return system of claim 11, wherein: and the cooling unit (70) is communicated with a pipeline of the pressure regulating valve (22) and the buffer cylinder (30).
14. An oil pressure cooling system, comprising:
an actuator cylinder (10) having an oil cylinder (11), an actuator (12) being hydraulically actuated by the oil cylinder (11);
an oil circuit unit (20), one end of which is communicated with the oil cylinder (11) of the actuating cylinder (10), and the oil circuit unit is provided with at least one-way valve (21) and a pressure regulating valve (22) which are respectively communicated with the oil cylinder (11) of the actuating cylinder (10) through a pipeline;
a damping cylinder (30) having a cylinder body (31) connected to the check valve (21) and the pressure regulating valve (22) of the oil circuit unit (20) by a pipe, respectively; the hydraulic oil of the buffer cylinder (30) flows to the oil cylinder (11) of the actuating cylinder (10) through the one-way valve (21) of the oil circuit unit (20) to enable the actuating element (12) of the actuating cylinder to ascend, and the actuating element (12) of the actuating cylinder (10) descends to enable the hydraulic oil of the oil cylinder (11) of the actuating cylinder to return to the cylinder body (31) of the buffer cylinder (30) through the pressure regulating valve (22).
15. The oil pressure cooling system of claim 14, wherein: and a pipeline for communicating the cylinder (10) and the pressure regulating valve (22) is also included in the cooling unit (70).
16. The oil pressure cooling system of claim 14, wherein: and the cooling unit (70) is communicated with a pipeline of the pressure regulating valve (22) and the buffer cylinder (30).
CN201921603935.3U 2018-09-25 2019-09-25 Oil pressure buffering positioning back-jacking system and oil pressure cooling system Active CN211116947U (en)

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