CN113847304A - Hydraulic oil cylinder of hydraulic glue joint insulating clamping plate dismounting device - Google Patents
Hydraulic oil cylinder of hydraulic glue joint insulating clamping plate dismounting device Download PDFInfo
- Publication number
- CN113847304A CN113847304A CN202111318191.2A CN202111318191A CN113847304A CN 113847304 A CN113847304 A CN 113847304A CN 202111318191 A CN202111318191 A CN 202111318191A CN 113847304 A CN113847304 A CN 113847304A
- Authority
- CN
- China
- Prior art keywords
- hydraulic
- cylinder
- counter bore
- tension spring
- glue joint
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000003292 glue Substances 0.000 title claims abstract description 17
- 239000010720 hydraulic oil Substances 0.000 title claims abstract description 17
- 239000003921 oil Substances 0.000 claims abstract description 25
- 238000009413 insulation Methods 0.000 claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 description 14
- 239000010959 steel Substances 0.000 description 14
- 239000000853 adhesive Substances 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
Images
Classifications
-
- 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
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1404—Characterised by the construction of the motor unit of the straight-cylinder type in clusters, e.g. multiple cylinders in one block
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B29/00—Laying, rebuilding, or taking-up tracks; Tools or machines therefor
- E01B29/32—Installing or removing track components, not covered by the preceding groups, e.g. sole-plates, rail anchors
-
- 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
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
-
- 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
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1438—Cylinder to end cap assemblies
-
- 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
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1447—Pistons; Piston to piston rod assemblies
-
- 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
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/149—Fluid interconnections, e.g. fluid connectors, passages
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Machines For Laying And Maintaining Railways (AREA)
Abstract
The invention discloses a hydraulic oil cylinder of a hydraulic glue joint insulation splint dismounting device, which is provided with two hydraulic oil cylinders, wherein the two hydraulic oil cylinders are symmetrically arranged on a main rack of the hydraulic glue joint splint dismounting device and rotate along the main rack in opposite directions; the hydraulic oil cylinder comprises a cylinder seat, an oil cylinder body, a piston and a reset tension spring; a first counter bore is formed in the axis position of the cylinder body; the piston is arranged in the first counter bore and moves horizontally along the cylinder body, and the front end of the piston penetrates through the front end of the cylinder body; a second counter bore is formed in the axis position of the piston; the reset tension spring is arranged in the second counter bore, one end of the reset tension spring is fixedly connected with the bottom of the second counter bore, and the other end of the reset tension spring is located outside the second counter bore and fixedly connected with the rear end in the oil cylinder barrel. The invention aims to solve the problems that the hydraulic cementing splint dismounting device has low power and is inconvenient to operate in a small space.
Description
Technical Field
The invention relates to a part of a hydraulic glued clamping plate dismounting device, in particular to a hydraulic oil cylinder of the hydraulic glued insulating clamping plate dismounting device.
Background
When the glued insulation splint at the insulation joint part on the early railway line is suddenly broken or damaged, a method of inserting the short rail after sawing is generally adopted, but the method consumes labor and time and has high raw material cost. The joint is one of three key parts of railway line defects and occupies an important position in the work maintenance, and particularly, the insulating joint part not only directly influences indexes such as line smoothness, but also has a great influence on signal control and the like which influence the safe operation of the line. Therefore, in recent years, a cementing clamp plate vulcanization dismounting machine is developed, the strength of an adhesive is reduced by adopting a heating method, the dismounting is convenient, the use is limited due to various defects caused by heating, a novel cold dismounting device is urgently needed to meet the requirement of site construction, and meanwhile, steel rails and concrete sleepers are protected from being damaged by heat.
According to the technical requirements of TB/T2975-2018 steel rail adhesive joint insulation joint at present, a high-strength and high-toughness adhesive is filled between the clamping plate and the rail web, for example, a qualified 60kg/m steel rail type adhesive joint insulation joint is taken as an example, the resistance of a longitudinal joint is up to 3000kN, so that the clamping plate needs to be detached from the rail web with large mechanical force, and great difficulty is caused.
The cementing insulating joint is a device which is arranged in a blocking subarea dividing point or an interval of a railway signal machine and is used for meeting the dividing requirement of a blocking subarea of a track circuit. The cementing insulation clamp plate is bonded with the steel rail by using an adhesive on site, the steel rail joint is fastened by adopting a high-strength bolt (or a steel rail non-porous chuck), and when the cementing insulation clamp plate is pulled open, broken off and fails in insulation, the cementing insulation clamp plate needs to be disassembled and replaced, and the mode of manufacturing the insulation joint on site is replaced again.
According to the above, the longitudinal joint resistance of the glued insulated joint of the 60kg/m rail type is as high as 3000kN, and the mechanical strength is so high that the implementation process has the following difficulties for field construction, and a solution needs to be researched and found out: 1) the power of the required hydraulic power device needs to be large enough, the manpower can not be met basically, a special energy source needs to be added, the weight of the whole set of equipment is increased, and the site construction is not favorable; 2) the novel cold dismantling equipment needs to output such large mechanical force and needs to have proper force application points and force application points, the force application points and the force application points are obviously and unreasonably distributed on the clamping plates and the steel rails through actual investigation of field conditions and research of the standard of TB/T2975-2018 steel rail adhesive joint insulating joint, and a reasonable structure and a loading mode need to be selected; 3) the glued insulated joints are distributed on various road sections of the line, the operation space for the novel cold dismantling equipment is greatly different, and particularly, the operation space in a turnout section is narrow, and various working conditions need to be analyzed to find out corresponding solutions.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the hydraulic oil cylinder of the hydraulic glue joint insulation clamping plate dismounting device, so as to solve the problems that the hydraulic glue joint clamping plate dismounting device is low in power and inconvenient to operate in a small space.
In order to achieve the purpose, the invention adopts the following technical scheme:
the hydraulic oil cylinders are symmetrically arranged on a main frame of the hydraulic glue joint insulation splint dismounting device and rotate along the main frame in opposite directions;
the hydraulic oil cylinder comprises a cylinder seat, an oil cylinder body, a piston and a reset tension spring;
a first counter bore is formed in the axis position of the cylinder body;
the piston is arranged in the first counter bore and moves horizontally along the cylinder body, and the front end of the piston penetrates through the front end of the cylinder body;
a second counter bore is formed in the axis position of the piston;
the reset tension spring is arranged in the second counter bore, one end of the reset tension spring is fixedly connected with the bottom of the second counter bore, and the other end of the reset tension spring is positioned outside the second counter bore and fixedly connected with the rear end in the oil cylinder barrel;
the rear end of the cylinder body is fixedly connected with the front end of the cylinder seat, and the rear end of the cylinder seat is arranged on the main rack and rotates along the main rack;
the rear end of the cylinder base is provided with a mounting hole used for being connected with the main frame and an oil duct mounting hole used for being connected with a hydraulic pump;
the rear end face of the cylinder base is set to be a plane.
Preferably, the front end of the cylinder body is provided with a top cap.
Preferably, the bottom of the second counter bore is provided with a pin which is used for being fixedly connected with one end of the reset tension spring.
Preferably, the bottom of the first counter bore is provided with a tension spring fixing plate which is used for being fixedly connected with the other end of the reset tension spring.
Preferably, the oil duct cylinder body coincides with the axis position of the piston, and a gap e is left between the circle center position of the mounting hole and the axis position of the cylinder body.
Preferably, the front end of the piston is provided with a top.
Preferably, the top of the rear end of the cylinder base is provided with a mounting surface, and the mounting hole is positioned on the mounting surface.
Preferably, an included angle α is formed between the center line of the oil passage mounting hole and the horizontal plane of the mounting surface.
Preferably, the included angle α is 10 °.
The hydraulic oil cylinder of the hydraulic glue joint insulation clamping plate dismounting device can provide larger power, ensures that the dismounting work is carried out smoothly, is convenient for the work of the movable cutter, adapts to a narrow working space by reducing the size of the structure, and fully considers the convenience in operation.
Drawings
FIG. 1 is an axial schematic view of a hydraulic cylinder according to the present invention;
FIG. 2 is a schematic front view of a hydraulic cylinder according to the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is a cross-sectional view taken along line B-B of FIG. 2;
FIG. 5 is a schematic axial view of a cylinder block of the hydraulic cylinder of the present invention;
FIG. 6 is a schematic view of the hydraulic cylinder of the present invention in use.
Detailed Description
In order to better understand the technical solutions of the present invention, the following further describes the technical solutions of the present invention with reference to the accompanying drawings and examples.
Referring to fig. 6, in the hydraulic cylinder of the hydraulic insulation clamp dismounting device according to the present invention, two hydraulic cylinders 100 are symmetrically disposed on the main frame 101 of the hydraulic insulation clamp dismounting device and rotate in opposite directions along the main frame 101 (see the arrow direction in fig. 6).
Referring to fig. 1, the rear end of a hydraulic cylinder 100 is movably connected with a main frame 101 through a connecting seat 1, and the front end of the hydraulic cylinder 100 is provided with a movable cutter 2.
As shown in fig. 2 and 3, the hydraulic cylinder 100 includes a cylinder base 3, a cylinder barrel 4, a piston 5, and a return tension spring 6.
The axial center of the cylinder barrel 4 is provided with a first counter bore 7 for installing the piston 5.
The piston 5 is arranged in the first counter bore 7 and moves horizontally along the oil cylinder barrel 4, the front end of the piston 5 penetrates through the front end of the oil cylinder barrel 4, and the front end of the oil cylinder barrel 4 is provided with a top cap 8 for sealing.
And a second counter bore 9 for mounting the reset tension spring 6 is formed in the axis position of the piston 5.
The reset tension spring 6 is horizontally arranged in the second counter bore 9, one end of the reset tension spring 6 is fixedly connected with the bottom of the second counter bore 9, and the other end of the reset tension spring is positioned outside the second counter bore 9 and fixedly connected with the rear end of the oil cylinder barrel 4 (the bottom of the first counter bore 7).
The bottom of the second counter bore 9 is provided with a pin 12 for connecting and fixing with one end of the return tension spring 6, and the bottom of the first counter bore 7 is provided with a tension spring fixing plate 13 for connecting and fixing with the other end of the return tension spring 6.
The rear end of the cylinder barrel 4 is fixedly connected with the front end of the cylinder base 3, and the rear end of the cylinder base 3 is arranged on the main frame 101 through the connecting base 1 and rotates along the main frame 101.
The rear end of the cylinder base 3 is provided with a mounting hole 10 for connecting with the connecting base 1 and an oil duct mounting hole 11 for connecting with a hydraulic pump.
Because the hydraulic glue-joint splint dismounting device requires the movable cutter 2 to be tightly attached to the rail web in the process of dismounting the glue-joint insulating splint, the dismounting work can be ensured to be carried out smoothly, the axle center positions of the oil cylinder barrel 4 and the piston 5 are superposed, and a gap e is reserved between the circle center position of the oil duct mounting hole 11 and the axle center position of the oil cylinder barrel 4, so that the hydraulic oil cylinder 100 can generate a torque between the output dismounting force and the supporting force of the cylinder seat 3, and the torque can ensure that the whole hydraulic oil cylinder 100 generates a movement trend towards the rail web direction of the steel rail, thereby being beneficial to ensuring that the movable cutter 2 on the hydraulic oil cylinder is tightly attached to the rail web and ensuring that the dismounting work is carried out smoothly.
Referring to fig. 3 and 6 again, the hydraulic glued joint splint dismounting device needs to unfold the two hydraulic cylinders 100 to pass through the rail head of the steel rail and be smoothly sleeved on the steel rail, while the two hydraulic cylinders 100 need to be close to the rail web of the steel rail as much as possible to adapt to a small and narrow working space, and a part of material with the size d is cut off at the rear end of the cylinder seat 3, so that the rear end surface of the cylinder seat is a plane, and the hydraulic glued joint splint dismounting device is used for passing through the rail head of the steel rail. Meanwhile, as a part of material with the dimension d is cut, the surface B does not exceed the surface A, thereby influencing the smooth sleeving of the hydraulic cementing splint dismounting device on the steel rail.
The cylinder body 4 and the cylinder base 3 are connected through bolts, and the front end of the piston 5 is provided with a top head 14 so as to reduce the structural size.
As shown in fig. 5, the rear end top of the cylinder block 3 is provided as a mounting surface 15, and the mounting hole 10 is located on the mounting surface 15.
Referring to fig. 4, an included angle α is formed between the center line of the oil duct mounting hole 11 and the horizontal plane of the mounting surface 15, the included angle α is 10 °, so that the oil pipe quick connector can be conveniently mounted on the oil duct mounting hole 11, and meanwhile, the hydraulic oil cylinder 100 is ensured not to interfere with other components in the unfolded state.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above described embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (9)
1. The utility model provides a hydraulic cylinder that device was demolishd to hydraulic pressure cementing insulation splint which characterized in that: the two hydraulic oil cylinders are symmetrically arranged on a main rack of the hydraulic glue joint splint dismounting device and rotate along the main rack in opposite directions;
the hydraulic oil cylinder comprises a cylinder seat, an oil cylinder body, a piston and a reset tension spring;
a first counter bore is formed in the axis position of the cylinder body;
the piston is arranged in the first counter bore and moves horizontally along the cylinder body, and the front end of the piston penetrates through the front end of the cylinder body;
a second counter bore is formed in the axis position of the piston;
the reset tension spring is arranged in the second counter bore, one end of the reset tension spring is fixedly connected with the bottom of the second counter bore, and the other end of the reset tension spring is positioned outside the second counter bore and fixedly connected with the rear end in the oil cylinder barrel;
the rear end of the cylinder body is fixedly connected with the front end of the cylinder seat, and the rear end of the cylinder seat is arranged on the main rack and rotates along the main rack;
the rear end of the cylinder base is provided with a mounting hole used for being connected with the main frame and an oil duct mounting hole used for being connected with a hydraulic pump;
the rear end face of the cylinder base is set to be a plane.
2. The hydraulic cylinder of the hydraulic glue joint insulation splint removing device according to claim 1, characterized in that: and the front end of the cylinder body is provided with a top cap.
3. The hydraulic cylinder of the hydraulic glue joint insulation splint removing device according to claim 1, characterized in that: and a pin used for being fixedly connected with one end of the reset tension spring is arranged at the bottom of the second counter bore.
4. The hydraulic cylinder of the hydraulic glue joint insulation splint removing device according to claim 1, characterized in that: and the bottom of the first counter bore is provided with a tension spring fixing plate which is used for being fixedly connected with the other end of the reset tension spring.
5. The hydraulic cylinder of the hydraulic glue joint insulation splint removing device according to claim 1, characterized in that: the oil cylinder barrel is superposed with the axis position of the piston, and a gap e is reserved between the circle center position of the oil duct mounting hole and the axis position of the oil cylinder barrel.
6. The hydraulic cylinder of the hydraulic glue joint insulation splint removing device according to claim 1, characterized in that: the front end of the piston is provided with a top.
7. The hydraulic cylinder of the hydraulic glue joint insulation splint removing device according to claim 1, characterized in that: the top of the rear end of the cylinder base is arranged as a mounting surface, and the mounting hole is formed in the mounting surface.
8. The hydraulic cylinder of the hydraulic glue joint insulation splint removing device according to claim 7, characterized in that: an included angle alpha is formed between the center line of the oil duct mounting hole and the horizontal plane of the mounting surface.
9. The hydraulic cylinder of the hydraulic glue joint insulation splint removing device according to claim 8, characterized in that: the included angle alpha is 10 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111318191.2A CN113847304B (en) | 2021-11-09 | 2021-11-09 | Hydraulic cylinder of hydraulic cementing insulating clamping plate dismantling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111318191.2A CN113847304B (en) | 2021-11-09 | 2021-11-09 | Hydraulic cylinder of hydraulic cementing insulating clamping plate dismantling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113847304A true CN113847304A (en) | 2021-12-28 |
| CN113847304B CN113847304B (en) | 2024-06-25 |
Family
ID=78983983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111318191.2A Active CN113847304B (en) | 2021-11-09 | 2021-11-09 | Hydraulic cylinder of hydraulic cementing insulating clamping plate dismantling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113847304B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005179976A (en) * | 2003-12-18 | 2005-07-07 | Mikasa Sangyo Co Ltd | Forward movement/backward movement switching hand pump for vibration compaction machine |
| US20120145497A1 (en) * | 2010-12-10 | 2012-06-14 | Chun-Chin Wang | Hydraulic brake controller |
| CN106321922A (en) * | 2016-08-22 | 2017-01-11 | 开平市玛格纳卫浴有限公司 | Hydraulically-delayed self-closed water-saving water faucet valve element |
| CN107366201A (en) * | 2016-05-11 | 2017-11-21 | 上海瑞纽机械股份有限公司 | A kind of hydraulic tool for taking up tracks and its track lifting method that unbalance loading is born with floating structure |
| CN108465721A (en) * | 2018-03-16 | 2018-08-31 | 燕山大学 | A kind of push-model Profile CNC stretch benders |
| CN108858043A (en) * | 2018-05-31 | 2018-11-23 | 中煤科工集团西安研究院有限公司 | Rubber oild chuck slips installation tool and installation method |
| CN208330885U (en) * | 2018-07-02 | 2019-01-04 | 宁波中天海德液压有限公司 | A kind of hydraulic cylinder |
| CN111118986A (en) * | 2020-02-24 | 2020-05-08 | 台州市玉峰液压机械有限公司 | Rail cementing insulation joint clamping plate detacher |
| CN211897636U (en) * | 2020-02-24 | 2020-11-10 | 台州市玉峰液压机械有限公司 | Device for disassembling rail glued joint insulating joint clamping plate |
| CN216111537U (en) * | 2021-11-09 | 2022-03-22 | 上海瑞纽机械股份有限公司 | Hydraulic oil cylinder of hydraulic glue joint insulating clamping plate dismounting device |
-
2021
- 2021-11-09 CN CN202111318191.2A patent/CN113847304B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005179976A (en) * | 2003-12-18 | 2005-07-07 | Mikasa Sangyo Co Ltd | Forward movement/backward movement switching hand pump for vibration compaction machine |
| US20120145497A1 (en) * | 2010-12-10 | 2012-06-14 | Chun-Chin Wang | Hydraulic brake controller |
| CN107366201A (en) * | 2016-05-11 | 2017-11-21 | 上海瑞纽机械股份有限公司 | A kind of hydraulic tool for taking up tracks and its track lifting method that unbalance loading is born with floating structure |
| CN106321922A (en) * | 2016-08-22 | 2017-01-11 | 开平市玛格纳卫浴有限公司 | Hydraulically-delayed self-closed water-saving water faucet valve element |
| CN108465721A (en) * | 2018-03-16 | 2018-08-31 | 燕山大学 | A kind of push-model Profile CNC stretch benders |
| CN108858043A (en) * | 2018-05-31 | 2018-11-23 | 中煤科工集团西安研究院有限公司 | Rubber oild chuck slips installation tool and installation method |
| CN208330885U (en) * | 2018-07-02 | 2019-01-04 | 宁波中天海德液压有限公司 | A kind of hydraulic cylinder |
| CN111118986A (en) * | 2020-02-24 | 2020-05-08 | 台州市玉峰液压机械有限公司 | Rail cementing insulation joint clamping plate detacher |
| CN211897636U (en) * | 2020-02-24 | 2020-11-10 | 台州市玉峰液压机械有限公司 | Device for disassembling rail glued joint insulating joint clamping plate |
| CN216111537U (en) * | 2021-11-09 | 2022-03-22 | 上海瑞纽机械股份有限公司 | Hydraulic oil cylinder of hydraulic glue joint insulating clamping plate dismounting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113847304B (en) | 2024-06-25 |
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