CN113264079A - Contact net car ladder rail grabbing device - Google Patents
Contact net car ladder rail grabbing device Download PDFInfo
- Publication number
- CN113264079A CN113264079A CN202110599664.4A CN202110599664A CN113264079A CN 113264079 A CN113264079 A CN 113264079A CN 202110599664 A CN202110599664 A CN 202110599664A CN 113264079 A CN113264079 A CN 113264079A
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- cavity
- movably
- hydraulic
- pressing block
- block
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H7/00—Brakes with braking members co-operating with the track
- B61H7/12—Grippers co-operating frictionally with tracks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D15/00—Other railway vehicles, e.g. scaffold cars; Adaptations of vehicles for use on railways
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
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Abstract
The invention relates to the technical field of rail transit, and discloses a contact net vehicle ladder rail grabbing device, wherein a turntable is movably arranged in the middle of the front surface of a shell, a first pressing block is movably sleeved on one side inside a movable cavity, clamping jaws are respectively movably sleeved on the bottom positions of two sides of a movable cavity of a second pressing block on the other side inside the movable cavity, clamping blocks are movably connected to the bottoms of the clamping jaws, a main gear fixedly connected with the turntable is movably arranged inside the rotary cavity, a driven gear meshed with the main gear is movably arranged between the rotary cavity and the movable cavity, a transmission gear is movably arranged in the middle of the top of the movable cavity, a first hydraulic cavity and a second hydraulic cavity are arranged at the back of the rotary cavity inside the shell, a rotary sliding block with one end fixedly connected with the main gear is movably sleeved inside the second hydraulic cavity, through setting up the clamping mode and pressing from both sides the optimization of tight piece, improved the tight effect of clamp and the security of grabbing the rail ware.
Description
Technical Field
The invention relates to the technical field of rail transit, in particular to a rail grabbing device for a contact net vehicle ladder.
Background
The operation of motor car relies on electric drive, thereby the source of electric power is through the contact net contact realization conduction that the pantograph was put up with the frame, the contact net is the source that provides electric power, its design is similar to the erectting of high-voltage line etc. it will meet certain problem when using for a long time, because it erects in the air, just need utilize the car ladder to provide the support when needs maintain, because the car ladder can remove, consequently just need fix it when using, commonly used fixing device is the rail grabber, its one end centre gripping links to each other with the car ladder at the track other end, simple structure convenient to use, but still there is certain not in-service use:
the existing rail grabber utilizes a rotating pull rod and a cam to realize the function of pressing down to clamp a clamping jaw on a steel rail, but the mode adopts the mode that the pull rod is manually pressed down or lifted upwards, the force is usually large in order to achieve the required clamping force, and the structure which is directly rotated and supported by the cam has certain danger, the pull rod is easy to be touched or loosened by the external acting force to cause the rail grabber to be loosened, and at the moment, if a person works on a vehicle ladder, the rail grabber is dangerous; the rail grabbing device has the advantages that the clamping jaws are directly adopted to clamp the steel rail, heads with inward bent ends are adopted to clamp the steel rail when the steel rail grabbing device clamps the steel rail, the stress area is small, the clamping effect is not good, the possibility of shaking exists, the application range of the rail grabbing device is limited, the working range is small due to the rotating clamping mode of the cam, the rail grabbing device can only be used on one type of steel rail, the clamping position of the clamping end is changed when the clamping end is adjusted, the actual working stress position of the rail grabbing device is changed, and the good clamping effect cannot be achieved.
Disclosure of Invention
Aiming at the defects of the background technology, the invention provides the contact net vehicle ladder rail grabbing device which has the advantages of high safety and good clamping effect, and solves the problems in the background technology.
The invention provides the following technical scheme: a rail grabbing device for a contact net vehicle ladder comprises a shell, wherein a connecting support is movably connected to one side of the shell, a turntable is movably mounted in the middle of the front face of the shell, a movable cavity is formed in the shell along an outer ring, a first pressing block is movably sleeved on one side of the inner portion of the movable cavity, a second pressing block is movably sleeved on the other side of the inner portion of the movable cavity, pressing rods are fixedly connected to the bottoms of the first pressing block and the second pressing block respectively, clamping jaws are movably sleeved on the bottoms of two sides of the movable cavity respectively, clamping blocks are movably connected to the bottoms of the clamping jaws, a rotating cavity is formed in the middle of the inner portion of the shell, a main gear fixedly connected with the turntable is movably mounted in the rotating cavity, a driven gear meshed with the main gear is movably mounted between the rotating cavity and the movable cavity, and a transmission gear is movably mounted in the middle of the top of the movable cavity, the top and the bottom of the transmission gear are respectively meshed with the first pressing block and the second pressing block, and the inner ring of the second pressing block is meshed with the driven gear.
Preferably, the outer ring of the pressure lever is located between the pressing block and the clamping jaw and fixedly provided with a disc spring, the clamping jaw is provided with a trepan boring inside, the pressure lever is sleeved inside the trepan boring, one side of the bottom of the clamping block, which is close to the clamping jaw, is movably connected with an ejector rod sleeved inside the trepan boring, the inside of the shell, which is located at the back of the rotating cavity, is provided with a first hydraulic cavity, the inside of the shell, which is located at the inner ring of the first hydraulic cavity, is provided with a second hydraulic cavity, the inside of the second hydraulic cavity is movably sleeved with a rotating sliding block, one end of which is fixedly connected with the main gear, two check valves opposite in opposite directions are fixedly arranged between the first hydraulic cavity and the second hydraulic cavity, and the inside of the second hydraulic cavity, which is located between the two check valves, is movably sleeved with a pressure release lever.
Preferably, the elasticity of the belleville spring is larger than the resistance of the pressing block and the clamping jaw when the pressing block and the clamping jaw movably rotate, the aperture of the sleeve hole sleeved connection pressing rod part is larger than the aperture of the sleeve connection ejector rod part, and the sleeve hole is filled with hydraulic oil.
Preferably, the first hydraulic cavity is communicated with the second hydraulic cavity through a one-way valve and is divided into two parts by a rotating slide block, the turntable rotates along the anticlockwise direction to realize the clamping action of the rail grabber, and the number of teeth keys on the inner side of the second pressing block is less than that of the teeth keys of one circle of the main gear.
The invention has the following beneficial effects:
rotate and through setting up the gear structure transmission in inside through the mode that sets up the carousel, and restrict the screens through hydraulic pressure, compare in prior art, it is more convenient and can not produce extra interference to utilize gear drive's mode to control the jack catch of both sides to carry out the clamping operation, it has guaranteed to carry out the abundant clamp tightly of different rail to have set up movable clamp block and cooperate inside briquetting and belleville spring cooperation work at the tip of jack catch simultaneously, the tight effect of clamp of grabbing the rail ware has been guaranteed, and the hydraulic pressure chamber of grabbing the inside setting of rail ware is restricted through hydraulic pressure and check valve and is rotated the slider realization and rotate spacingly, guaranteed can't continue to rotate the carousel after pressing from both sides tightly again, just also avoided the pressure release to cause the condition that the rail ware loosed, the security is higher, and the pressure release is also convenient, only need pull out the pressure release pole can.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is an overall front and half sectional view of the structure of the present invention;
FIG. 3 is a side, semi-sectional view of the present invention in its entirety;
FIG. 4 is a cross-sectional view of a hydraulic chamber of the present invention;
fig. 5 is an enlarged view of a portion a in fig. 4.
In the figure: 1. a housing; 101. a movable cavity; 102. a rotation chamber; 103. a first hydraulic chamber; 104. a second hydraulic chamber; 2. connecting a bracket; 3. a first pressing block; 4. a second pressing block; 401. a pressure lever; 5. a claw; 501. trepanning; 6. a turntable; 7. a clamping block; 701. a top rod; 8. a main gear; 9. a transmission gear; 10. a driven gear; 11. a belleville spring; 12. rotating the slide block; 13. a pressure relief lever; 14. a one-way valve; 15. a steel rail.
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.
Referring to fig. 1-5, a rail grabbing device for a contact line vehicle ladder comprises a housing 1, a connecting support 2 is movably connected to one side of the housing 1, a rotary table 6 is movably mounted at the middle of the front of the housing 1, a movable cavity 101 is formed in the housing 1 along the outer ring, a first press block 3 is movably sleeved on one side of the inner part of the movable cavity 101, a second press block 4 is movably sleeved on the other side of the inner part of the movable cavity 101, the bottoms of the first press block 3 and the second press block 4 are respectively and fixedly connected with a press rod 401, a butterfly spring 11 is fixedly mounted between the press block and a clamping jaw 5 on the outer ring of the press rod 401, the clamping jaw 5 is respectively and movably sleeved at the bottom of the two sides of the movable cavity 101, a trepanning 501 is formed in the clamping jaw 5, the press rod 401 is movably sleeved in the trepanning 501, a clamping block 7 is movably connected at the bottom of the clamping jaw 5, a push rod 701 is movably sleeved in the trepanning 501 on one side of the clamping block 7, a rotating cavity 102 is arranged in the middle of the inside of a shell 1, a main gear 8 fixedly connected with a turntable 6 is movably arranged in the rotating cavity 102, a driven gear 10 meshed with the main gear 8 is movably arranged between the rotating cavity 102 and a movable cavity 101, a transmission gear 9 is movably arranged in the middle of the top of the movable cavity 101, the top and the bottom of the transmission gear 9 are respectively meshed with a first pressing block 3 and a second pressing block 4, the inner ring of the second pressing block 4 is meshed with the driven gear 10, a first hydraulic cavity 103 is arranged in the shell 1 at the back of the rotating cavity 102, a second hydraulic cavity 104 is arranged in the shell 1 at the inner ring of the first hydraulic cavity 103, a rotating slide block 12 with one end fixedly connected with the main gear 8 is movably sleeved in the second hydraulic cavity 104, two check valves 14 which are opposite in opposite directions are fixedly arranged between the first hydraulic cavity 103 and the second hydraulic cavity 104, a pressure relief rod 13 is movably sleeved in the second hydraulic cavity 104 at the position between the two check valves 14, the pressure relief rod 13 is inserted through the first hydraulic pressure chamber 103 into the second hydraulic pressure chamber 104 and partitions both sides of the second hydraulic pressure chamber 104.
The elasticity of the belleville spring 11 is larger than the resistance of the pressing blocks and the clamping jaws 5 when the clamping jaws 5 and the two pressing blocks rotate movably, the belleville spring 11 cannot be compressed or pulled to avoid errors caused by clamping of the accurate rotating turntable 6, the aperture of the part, sleeved with the pressing rod 401, of the trepanning 501 is larger than that of the part, sleeved with the ejector rod 701, of the trepanning 501, hydraulic oil is filled in the trepanning 501, after the main gear 8 rotates to drive the clamping jaws 5 on the two sides to drive the tops of the clamping blocks 7 to abut against the steel rail 15, the turntable 6 continues to rotate, the pressing rod 401 on the pressing blocks is driven to extrude the hydraulic oil through gear transmission, the ejector rod 701 is ejected downwards and drives the side edges of the clamping blocks 7 to completely abut against the steel rail 15 to achieve full clamping, the diameter of the ejector rod 701 is thinner, the received abutting pressure can be larger, and the clamping force can be larger.
Wherein, the first hydraulic cavity 103 is communicated with the second hydraulic cavity 104 through the one-way valve 14 and is divided into two parts by the rotating slide block 12, the turntable 6 rotates along the anticlockwise direction to realize the clamping action of the rail grabber, the number of the teeth keys at the inner side of the second pressing block 4 is less than that of the teeth keys of one circle of the main gear 8, the hydraulic oil in the first hydraulic chamber 103 is made to enter the side of the second hydraulic chamber 104 by the rotation of the main gear 8, while the hydraulic oil in the other side of the second hydraulic chamber 104 enters the first hydraulic chamber 103, and the arrangement of the one-way valve 14 ensures that the rotary slide block 12 can not return under the counterforce pressed by the steel rail 15, the stability after clamping is ensured, the reverse rotary turntable 6 can not realize the loosening of the rail grabber, the safety in the working process is ensured, furthermore, a maximum clamping of the rail gripper can be achieved by means of a rotation of the main gear 8 without the need for one turn.
The working principle is that the shell 1 is prevented from being arranged at the center of the top of the steel rail 15, a handle on a rotary table 6 is rotated, the rotary table 6 drives a main gear 8 to rotate and transmit the rotation to a driven gear 10, the driven gear 10 drives a second pressing block 4 to rotate downwards, the second pressing block 4 rotates downwards and simultaneously drives a first pressing block 3 to rotate downwards through a transmission gear 9, then clamping jaws 5 on two sides are driven to rotate downwards and gradually rotate to two sides of the steel rail 15, the top of a clamping block 7 abuts against the side edge of the steel rail 15, then the rotary table 6 is rotated continuously, the pressing block is driven to press a pressing rod 401 downwards through the transmission of the gear and pushes an ejector rod 701 downwards through hydraulic pressure inside a trepanning 501, the ejector rod 701 pushes the clamping block 7 to rotate until the side edge completely abuts against the side edge of the steel rail 15, then the rotation is stopped, the clamping process of the rail grabber can be finished, and meanwhile, in the clamping process of the rail grabber, the rotary slide block 12 is driven to rotate in a second hydraulic pressure cavity 104 and is controlled by a one-way valve 14 to prevent the hydraulic pressure from being reacted Rotating back under the action of force;
when the clamping needs to be relieved, the pressure relief rod 13 only needs to be pulled outwards, at the moment, the rotating disc 6 can be rotated clockwise to reset the rotating slide block 12, meanwhile, the two clamping structures are driven to be loosened, and the rail grabber can be moved or taken down from the steel rail 15.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a rail ware is grabbed to contact net car ladder, includes casing (1), one side swing joint of casing (1) has linking bridge (2), its characterized in that: the front middle part of the shell (1) is movably provided with a turntable (6), the interior of the shell (1) is provided with a movable cavity (101) along an outer ring, one side of the interior of the movable cavity (101) is movably sleeved with a first pressing block (3), the other side of the interior of the movable cavity (101) is movably sleeved with a second pressing block (4), the bottoms of the first pressing block (3) and the second pressing block (4) are respectively and fixedly connected with a pressing rod (401), the bottom positions of the two sides of the movable cavity (101) are respectively and movably sleeved with a clamping jaw (5), the bottom of the clamping jaw (5) is movably connected with a clamping block (7), the middle part of the interior of the shell (1) is provided with a rotating cavity (102), a main gear (8) fixedly connected with the turntable (6) is movably mounted in the rotating cavity (102), a driven gear (10) meshed with the main gear (8) is movably mounted between the rotating cavity (102) and the movable cavity (101), the middle of the top of the movable cavity (101) is movably provided with a transmission gear (9), the top and the bottom of the transmission gear (9) are respectively meshed with the first pressing block (3) and the second pressing block (4), and the inner ring of the second pressing block (4) is meshed with the driven gear (10).
2. The overhead line system vehicle ladder rail grabbing device of claim 1, characterized in that: a belleville spring (11) is fixedly installed between the pressing block and the clamping jaw (5) on the outer ring of the pressing rod (401), a trepan boring (501) is formed in the clamping jaw (5), the pressing rod (401) is sleeved in the trepan boring (501), an ejector rod (701) sleeved in the trepan boring (501) is movably connected to one side, close to the clamping jaw (5), of the bottom of the clamping block (7), a first hydraulic cavity (103) is formed in the position, located on the back face of the rotating cavity (102), in the shell (1), a second hydraulic cavity (104) is formed in the position, located on the inner ring of the first hydraulic cavity (103), in the shell (1), a rotating sliding block (12) is movably sleeved in the second hydraulic cavity (104), one end of the rotating sliding block is fixedly connected with the main gear (8), and two reverse opposite one-way valves (14) are fixedly installed between the first hydraulic cavity (103) and the second hydraulic cavity (104), a pressure relief rod (13) is movably sleeved at a position between the two one-way valves (14) in the second hydraulic cavity (104).
3. The overhead line system vehicle ladder rail grabbing device of claim 2, characterized in that: the elasticity of the belleville spring (11) is larger than the resistance of the pressing block and the clamping jaw (5) during movable rotation, the aperture of the part, sleeved with the pressing rod (401), of the trepanning (501) is larger than the aperture of the part, sleeved with the ejector rod (701), of the trepanning (501), and hydraulic oil is filled in the trepanning (501).
4. The overhead line system vehicle ladder rail grabbing device of claim 2, characterized in that: the first hydraulic cavity (103) is communicated with the second hydraulic cavity (104) through a one-way valve (14) and is divided into two parts by a rotating slide block (12), the turntable (6) rotates along the anticlockwise direction to realize the clamping action of the rail grabber, and the number of teeth keys on the inner side of the second press block (4) is less than that of the teeth keys of one circle of the main gear (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110599664.4A CN113264079B (en) | 2021-05-31 | 2021-05-31 | Contact net car ladder rail grabbing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110599664.4A CN113264079B (en) | 2021-05-31 | 2021-05-31 | Contact net car ladder rail grabbing device |
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| Publication Number | Publication Date |
|---|---|
| CN113264079A true CN113264079A (en) | 2021-08-17 |
| CN113264079B CN113264079B (en) | 2022-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110599664.4A Active CN113264079B (en) | 2021-05-31 | 2021-05-31 | Contact net car ladder rail grabbing device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2530211A1 (en) * | 1982-07-17 | 1984-01-20 | Scharf Gmbh Maschf | Hydraulic brake system for mine railway vehicle |
| ES2334596A1 (en) * | 2005-02-16 | 2010-03-12 | F. Javier Porras Vila | Train brake pads for the top of the roads and for their sides. (Machine-translation by Google Translate, not legally binding) |
| CN105151079A (en) * | 2015-10-19 | 2015-12-16 | 中铁武汉电气化局集团第一工程有限公司 | Rail grasping device of catenary vehicle ladder |
| CN207470110U (en) * | 2017-11-27 | 2018-06-08 | 辽宁铁道职业技术学院 | A kind of contact net power supply grabs rail device with vehicle ladder |
| CN108568833A (en) * | 2018-06-28 | 2018-09-25 | 潘杨荣 | Holder driver and clamper |
| JP2020002997A (en) * | 2018-06-27 | 2020-01-09 | 曙ブレーキ工業株式会社 | Disc brake device |
-
2021
- 2021-05-31 CN CN202110599664.4A patent/CN113264079B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2530211A1 (en) * | 1982-07-17 | 1984-01-20 | Scharf Gmbh Maschf | Hydraulic brake system for mine railway vehicle |
| ES2334596A1 (en) * | 2005-02-16 | 2010-03-12 | F. Javier Porras Vila | Train brake pads for the top of the roads and for their sides. (Machine-translation by Google Translate, not legally binding) |
| CN105151079A (en) * | 2015-10-19 | 2015-12-16 | 中铁武汉电气化局集团第一工程有限公司 | Rail grasping device of catenary vehicle ladder |
| CN207470110U (en) * | 2017-11-27 | 2018-06-08 | 辽宁铁道职业技术学院 | A kind of contact net power supply grabs rail device with vehicle ladder |
| JP2020002997A (en) * | 2018-06-27 | 2020-01-09 | 曙ブレーキ工業株式会社 | Disc brake device |
| CN108568833A (en) * | 2018-06-28 | 2018-09-25 | 潘杨荣 | Holder driver and clamper |
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| Publication number | Publication date |
|---|---|
| CN113264079B (en) | 2022-06-21 |
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Effective date of registration: 20220527 Address after: 211500 No. 59 Wang Qiao Road, Xiongzhou Street, Liuhe District, Nanjing City, Jiangsu Province Applicant after: Enlightenment virtual reality (Nanjing) Technology Development Co.,Ltd. Address before: 350000 No. 129-1, Hubian village, Dongyang Township, Pingtan County, Fuzhou City, Fujian Province Applicant before: Zheng Huihui |
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