CN107059513B - Expansion tool of elastic clamp type steel rail nondestructive reinforcement device and installation method - Google Patents
Expansion tool of elastic clamp type steel rail nondestructive reinforcement device and installation method Download PDFInfo
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- CN107059513B CN107059513B CN201710454327.XA CN201710454327A CN107059513B CN 107059513 B CN107059513 B CN 107059513B CN 201710454327 A CN201710454327 A CN 201710454327A CN 107059513 B CN107059513 B CN 107059513B
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- elastic clamp
- steel rail
- stretching
- expansion arm
- clamping
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- 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
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Abstract
The utility model provides an expansion tool of an elastic clamp type steel rail nondestructive reinforcement device, relates to the technical field of railway steel rail damage reinforcement, and solves the technical problem that the existing expansion tool is single in function. The expansion tool includes a tensile indexing mechanism and a drive mechanism, wherein: the elastic clamp type steel rail nondestructive reinforcement device comprises an elastic clamp and two clamping plates which are symmetrical in position, wherein the two clamping plates clamp two sides of the abdomen of the steel rail; the stretching and indexing mechanism is connected with the driving mechanism, and the driving mechanism can drive the stretching and indexing mechanism to stretch the elastic clamp from a free state to an open state and rotate the elastic clamp in the open state to a position for clamping and locking the two clamping plates. The utility model can stretch the elastic clamp from a free state to an open state and rotate the elastic clamp in the open state to a position for clamping and locking the two clamping plates, thereby increasing the functions of the expanding tool.
Description
Technical Field
The utility model relates to the technical field of railway steel rail damage reinforcement, in particular to an expanding tool of an elastic clamp type steel rail nondestructive reinforcement device and an installation method.
Background
With the development of high-speed railways, heavy-load railways, common-speed railways and urban rail transit in China, the steel rail is easily damaged by factors such as damage generated in the process of rolling steel rails and transporting the steel rails by trains and rail welding seam breakage, and the like, especially at the welding joint of the steel rail which is a weak link of a rail structure (the welding seam strength is difficult to reach the strength of the steel rail parent metal, and the like).
The light-damaged steel rail does not need to be replaced before reaching the heavy-damaged standard, but if reinforcing measures are not taken, the steel rail can be directly influenced in driving safety after suddenly broken, and great pressure is caused to railway working departments. In order to eliminate the potential safety hazard generated by light damage to the steel rail, the railway service department adopts a bolt type steel rail nondestructive reinforcement device to reinforce the damaged part of the steel rail, and the clamping plates are clamped with the two sides of the steel rail through the jacking force of the bolts, but the bolts are easy to loosen, so that the clamping force of the clamping plates on the steel rail is reduced, the risk of the strength of the steel rail is increased, the bolts are required to be oiled and re-screwed regularly, the later maintenance workload is increased, and the maintenance cost is increased.
In order to overcome the defects of the bolt type steel rail nondestructive reinforcement device, china issued patent (CN 201420442906.4) discloses a steel rail nondestructive reinforcement device which comprises an elastic clamp and a clamping plate, is of a bolt-free fastening structure, has constant clamping force, is not easy to attenuate under the action of train load, has a simple structure, does not need to be oiled and re-screwed regularly, and effectively reduces the workload of later maintenance. However, the elastic clamp has elasticity, the elastic clamp must be opened to a specified size during installation, the elastic clamp is of an integrated structure, the elastic clamp can only be placed from the bottom of a steel rail and can only be horizontally placed according to the site condition, so that tools are required to erect the elastic clamp to be installed at a preset position during the installation process, the expansion tools on the market at present have single functions and can only play a role in expansion, and if the elastic clamp is required to be erected, the elastic clamp must be completed by other tools, so that the operation is inconvenient.
Disclosure of Invention
The utility model provides an expansion tool of an elastic clamp type nondestructive reinforcement device and an installation method thereof, which are used for solving the technical problems that the expansion tool only plays an expansion role and has a single function in the prior art.
The utility model adopts the technical scheme that:
the utility model provides an expansion tool of harmless reinforcing apparatus of elasticity clamp type rail, includes tensile transposition mechanism and actuating mechanism, wherein: the elastic clamp type steel rail nondestructive reinforcement device comprises an elastic clamp and two clamping plates which are symmetrical in position, wherein the two clamping plates clamp two sides of the abdomen of the steel rail; the stretching and indexing mechanism is connected with the driving mechanism, and the driving mechanism can drive the stretching and indexing mechanism to stretch the elastic clamp from a free state to an open state and rotate the elastic clamp in the open state to a position for clamping and locking the two clamping plates.
Optionally, the stretching indexing mechanism comprises an expansion arm, a connecting arm and a hinge stretching device, the expansion arm comprises a first expansion arm and a second expansion arm, the first expansion arm and the second expansion arm are connected through a connecting pin, the free ends of the two expansion arms are respectively connected with the two connecting arms, the two connecting arms are respectively connected with one hinge stretching device, the two hinge stretching devices are connected with the elastic clamp, the two ends of the driving mechanism are connected with the first expansion arm and the second expansion arm, and the driving mechanism can drive the expansion arm to drive the hinge stretching device to stretch the elastic clamp from a free state to an open state and rotate the elastic clamp in the open state to the position for clamping and locking the two clamping plates.
Optionally, the hinge stretching device comprises a hinge and a stretching sleeve, the hinge is connected with the stretching sleeve through a connecting shaft, the hinge is connected with the connecting arm through a pin shaft, a through groove is formed in the stretching sleeve, and the through groove is matched with the elastic clamp.
Optionally, the stretching sleeve is provided with a safety bolt, and the elastic clamp is provided with a positioning hole matched with the safety bolt.
Optionally, a bearing is arranged on the connecting shaft in the hinge.
Optionally, the driving mechanism comprises a hydraulic oil cylinder and a manual holding push-pull part, the hydraulic oil cylinder is provided with a high-pressure pump, the lower end surface of the hydraulic oil cylinder is propped against the top of the steel rail, two ends of the hydraulic oil cylinder are respectively connected with the first expansion arm and the second expansion arm, and the hydraulic oil cylinder drives the expansion arms to drive the hinge stretching device to stretch the elastic clamp from a free state to an open state through the connecting arms;
the expansion arm is provided with the manual holding push-pull part, and the manual holding push-pull part is held by hand to press the expansion arm towards the direction approaching to the steel rail, so that the elastic clamp in the open state can be rotated to the position for clamping and locking the two clamping plates.
The method for installing the elastic clip type nondestructive reinforcement device comprises the following steps:
step A, clamping two symmetrical clamping plates at positions in an elastic clamping type steel rail nondestructive reinforcement device on two sides of the belly of a steel rail;
b, placing an elastic clamp in the nondestructive reinforcement device, and enabling the elastic clamp to be placed at the bottom of the steel rail in a horizontal state;
and C, stretching the elastic clamp from a free state to an open state, and rotating the elastic clamp in the open state to a position for clamping and locking the two clamping plates.
Optionally, the clamping plate in the step A is clamped with two sides of the belly of the steel rail through fixing tools.
Optionally, the fixing tool comprises a retainer and two positioning blocks with symmetrical positions, wherein both ends of the retainer are respectively provided with a propping device, each positioning block is positioned on the outer side of the abdomen of the splint, both ends of the retainer are positioned on the outer side of the positioning blocks, and each propping device passes through the retainer to be propped against one positioning block;
the jacking device comprises a jacking bolt and a pressing plate, wherein the jacking bolt penetrates through the retainer, the jacking bolt is in threaded connection with the retainer, the pressing plate is penetrated through one end of the jacking bolt, which penetrates out of the retainer, of the jacking bolt, and the jacking bolt sequentially penetrates through the retainer, the pressing plate and the positioning block to jack up.
Optionally, in step C, the expansion tool of the nondestructive reinforcement device for steel rail with elastic clamp is used to stretch the elastic clamp from a free state to an open state and rotate the elastic clamp in the open state to a position for clamping and locking two clamping plates.
The utility model has the beneficial effects that:
the expansion tool of the elastic clamp type nondestructive reinforcement device provided by the utility model has the advantages that the driving mechanism can drive the stretching indexing mechanism to stretch the elastic clamp from a free state to an open state and rotate the elastic clamp in the open state to the position for clamping and locking the two clamping plates, so that the expansion tool not only plays a role in stretching and expanding, but also can rotate the elastic clamp to change the position state, and the function of the expansion tool is increased.
In addition, the preferred technical scheme among the technical schemes provided by the utility model can produce a plurality of technical effects: the bearing in the hinge device is arranged to ensure flexible rotation of the connecting shaft when the elastic clamp is pulled to a vertical position from a horizontal position by the stretching sleeve, so that friction with the hinge is reduced; the arrangement of the retaining bolts in the stretching sleeve ensures that the positions of the stretching sleeve and the elastic clamp do not displace during installation.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a holding tool according to the present utility model;
FIG. 2 is a schematic view of the construction of the expansion tool of the present utility model;
FIG. 3 is a schematic view of the hinge stretching device of FIG. 2;
FIG. 4 is a schematic view of the structure of the elastic clip type nondestructive reinforcement device of the present utility model after installation.
Reference numerals: 1. an expansion arm; 11. a first expansion arm; 12. a second expansion arm; 2. a connecting arm; 3. a connecting pin; 4. a hinge stretching device; 41. a hinge; 42. stretching the sleeve; 421. a through groove; 43. a connecting shaft; 44. a bearing; 45. a safety bolt; 5. positioning holes; 6. a hydraulic cylinder; 7. a high pressure pump; 8. a fixing tool; 81. a retainer; 82. a positioning block; 83. a jacking device; 831. a jack bolt; 832. a compacting plate; 9. an elastic clamp; 10. and (3) clamping plates.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, based on the examples herein, which are within the scope of the utility model as defined by the claims, will be within the scope of the utility model as defined by the claims.
Referring to fig. 1 to 4, the utility model provides an expansion tool of a nondestructive reinforcement device for elastic clamp type steel rails, which comprises a stretching indexing mechanism and a driving mechanism, wherein: the elastic clamp type steel rail nondestructive reinforcement device comprises an elastic clamp 9 and two clamping plates 10 which are symmetrical in position, wherein the two clamping plates 10 clamp two sides of the abdomen of a steel rail; the clamping plate 10 is bonded with the steel rail through a high-strength adhesive and is integrated with the steel rail, so that the working cross section area of the steel rail is increased, the dynamic bending stress of the steel rail under the action of train load is effectively reduced, and the crack expansion and fracture of the steel rail and the damaged steel rail at the welding seam are prevented; the outside of the clamping plate 10 is provided with a protruding structure, and the contact part of the elastic clamp 9 contacted with the protruding structure is provided with a groove matched with the protruding structure, so that the elastic clamp 9 can be effectively prevented from sliding down due to the action of a train load in a working state, and the driving safety is influenced. The stretching and indexing mechanism is connected with a driving mechanism, and the driving mechanism can drive the stretching and indexing mechanism to stretch the elastic clamp 9 from a free state to an open state and rotate the elastic clamp 9 in the open state to a position for clamping and locking the two clamping plates 10.
The stretching and indexing mechanism comprises an expansion arm 1, a connecting arm 2 and a hinge stretching device 4, wherein the expansion arm 1 comprises a first expansion arm 11 and a second expansion arm 12, the first expansion arm 11 and the second expansion arm 12 are connected through connecting pins, the free ends of the expansion arm 1 are respectively connected with the two connecting arms 2 through first pin shafts, the two connecting arms 2 are respectively connected with the hinge stretching device 4, the two hinge stretching devices 4 are both connected with the elastic clamp 9, the two ends of the driving mechanism are connected with the first expansion arm 11 and the second expansion arm 12, the driving mechanism can drive the expansion arm 1 to drive the hinge stretching device 4 to stretch the elastic clamp 9 from a free state to an open state through the connecting arm 2, and rotate the elastic clamp 9 in the open state to a position for clamping and locking the two clamping plates 10.
The hinge stretching device 4 comprises a hinge 41 and a stretching sleeve 42, the hinge 41 and the stretching sleeve 42 are connected through a connecting shaft 43, a bearing 44 is arranged on the connecting shaft 43 in the hinge 41, and the connecting shaft 43 is ensured to rotate flexibly when the stretching sleeve 42 pulls the elastic clamp 9 from a horizontal position to a vertical position, so that friction with the hinge 41 is reduced; the hinge 41 is connected with the connecting arm 2 through a second pin shaft, a through groove is formed in the stretching sleeve 42, the through groove is matched with the elastic clamp 9, and the elastic clamp 9 is located in the through groove. The tension sleeve 42 is provided with a safety bolt 45, and the elastic clamp 9 is provided with a positioning hole 5 matched with the safety bolt 45 so as to ensure that the positions of the tension sleeve 42 and the elastic clamp 9 are not displaced during installation. The tension sleeve 42 of the hinge tension device 4 is made of special tool steel, and needs sufficient strength, and the tension sleeve 42 can bear tension force of 70KN or more, and the shear bolt 45 is limited by the mounting position, and is required to have high strength and small diameter.
The driving mechanism comprises a hydraulic cylinder 6 and a manual holding push-pull part, the hydraulic cylinder 6 is provided with a high-pressure pump 7, the high-pressure pump 7 controls the working state of the hydraulic cylinder 6, the lower end face of the hydraulic cylinder 6 is abutted against the top of a steel rail, the bottom section of the hydraulic cylinder 6 contacted with the steel rail is designed into a geometric shape matched with the top face of the steel rail, and the steel rail can better support the hydraulic cylinder 6. The two ends of the hydraulic cylinder 6 are respectively connected with the first expansion arm 11 and the second expansion arm 12, preferably, the two ends of the hydraulic cylinder 6 are respectively and detachably fixedly connected with the first expansion arm 11 and the second expansion arm 12, so that the hydraulic cylinder 6 drives the expansion arm 1 to drive the hinge stretching device 4 to stretch the elastic clamp 9 from a free state to an open state through the connecting arm 2; the expanding arm 1 is provided with a manual holding push-pull part, and a worker holds the manual holding push-pull part to press the expanding arm 1 towards the direction that the elastic clamp 9 approaches the steel rail, so that the elastic clamp 9 in an open state can be rotated to a position for clamping and locking the two clamping plates 10.
The utility model also provides an installation method of the elastic clip type nondestructive reinforcement device, which comprises the following steps:
step A, clamping two clamping plates 10 which are symmetrical in position in the elastic clamping type steel rail nondestructive reinforcement device on two sides of the belly of the steel rail;
b, placing an elastic clamp 9 in the nondestructive reinforcement device, so that the elastic clamp 9 is horizontally placed at the bottom of the steel rail;
and C, stretching the elastic clamp 9 from a free state to an open state and rotating the elastic clamp 9 in the open state to a position for clamping and locking the two clamping plates 10.
It should be noted that the order of the step a and the step B may be interchanged, and in general, the step a is performed first and then the step B is performed.
As a preferred or alternative embodiment, the clamping plate 10 in step a is clamped with the rail web on both sides by means of a fastening tool.
The fixing tool comprises a retainer 81 and two positioning blocks 82 with symmetrical positions, wherein two ends of the retainer 81 are respectively provided with a jacking device 83, each positioning block 82 is positioned on the outer side of the abdomen of the splint 10, two ends of the retainer 81 are positioned on the outer side of each positioning block 82, and each jacking device 83 penetrates through the retainer 81 and jacks the positioning block 82;
the tightening device 83 includes a tightening bolt 831 and a pressing plate 832, the tightening bolt 831 passes through the retainer 81, the tightening bolt 831 is in threaded connection with the retainer 81, the pressing plate 832 is provided at one end of the tightening bolt 831 that passes through the retainer 81, and the tightening bolt 831 sequentially passes through the retainer 81 and the pressing plate 832 and tightens the positioning block 82.
As a preferred or alternative embodiment, in step C, the expansion tool of the above-mentioned clip-type rail nondestructive reinforcement device is used to stretch the clip 9 from the free state to the open state and rotate the clip 9 in the open state to a position for clamping and locking the two clamping plates 10.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (7)
1. The method for installing the elastic clamp type steel rail nondestructive reinforcement device is characterized by comprising the following steps of:
step A, clamping two clamping plates (10) which are symmetrical in position in the elastic clamping type steel rail nondestructive reinforcement device to two sides of the belly of the steel rail;
b, placing an elastic clamp (9) in the nondestructive reinforcement device, and enabling the elastic clamp (9) to be horizontally placed at the bottom of the steel rail;
step C, stretching the elastic clamp (9) from a free state to an open state by using an expanding tool of the elastic clamp type steel rail nondestructive reinforcement device, and rotating the elastic clamp (9) in the open state to a position for clamping and locking two clamping plates (10);
the expansion tool of the elastic clamp type steel rail nondestructive reinforcement device comprises a stretching indexing mechanism and a driving mechanism, wherein:
the elastic clamp type steel rail nondestructive reinforcement device comprises an elastic clamp (9) and two clamping plates (10) which are symmetrical in position, wherein the two clamping plates (10) clamp two sides of the abdomen of a steel rail; the stretching and indexing mechanism is connected with the driving mechanism, and the driving mechanism can drive the stretching and indexing mechanism to stretch the elastic clamp (9) from a free state to an open state and rotate the elastic clamp (9) in the open state to a position for clamping and locking the two clamping plates (10);
the stretching indexing mechanism comprises an expansion arm (1), a connecting arm (2) and a hinge stretching device (4), wherein the expansion arm (1) comprises a first expansion arm (11) and a second expansion arm (12), the first expansion arm (11) and the second expansion arm (12) are connected through a connecting pin, the free ends of the two expansion arms (1) are respectively connected with the two connecting arms (2), the two connecting arms (2) are respectively connected with one hinge stretching device (4), the two hinge stretching devices (4) are connected with the elastic clamp (9), the two ends of the driving mechanism are connected with the first expansion arm (11) and the second expansion arm (12), and the driving mechanism can drive the first expansion arm (11) and the second expansion arm (12) to stretch the elastic clamp (9) from a free state to an open state and rotate the elastic clamp (9) to the two clamping and locking positions (10) through the connecting arm (2).
2. The method for installing the elastic clamp type steel rail nondestructive reinforcement device according to claim 1, wherein the hinge stretching device (4) comprises a hinge (41) and a stretching sleeve (42), the hinge (41) and the stretching sleeve (42) are connected through a connecting shaft (43), the hinge (41) and the connecting arm (2) are connected through a pin shaft, a through groove is formed in the stretching sleeve (42), and the through groove is matched with the elastic clamp (9).
3. The method for installing the elastic clamp type steel rail nondestructive reinforcement device according to claim 2, wherein the tension sleeve (42) is provided with a safety bolt (45), and the elastic clamp (9) is provided with a positioning hole (5) matched with the safety bolt (45).
4. Method for installing a resilient clip-on rail non-destructive reinforcement according to claim 2, characterized in that said connecting shaft (43) in said hinge (41) is provided with bearings (44).
5. The method for installing the elastic clamp type steel rail nondestructive reinforcement device according to claim 1, characterized in that the driving mechanism comprises a hydraulic oil cylinder (6) and a manual holding push-pull part, the hydraulic oil cylinder (6) is provided with a high-pressure pump (7), the lower end face of the hydraulic oil cylinder (6) is abutted against the top of the steel rail, two ends of the hydraulic oil cylinder (6) are respectively connected with the first expansion arm (11) and the second expansion arm (12), the hydraulic oil cylinder (6) drives the first expansion arm (11) and the second expansion arm (12) to drive the hinge stretching device (4) through the connecting arm (2) to stretch the elastic clamp (9) from a free state to an open state;
the expansion arm (1) is provided with the manual holding push-pull part, the manual holding push-pull part is held by hand, the expansion arm (1) is pressed towards the direction close to the steel rail, and the elastic clamp (9) in an open state can be rotated to the position for clamping and locking the two clamping plates (10).
6. Method for installing a non-destructive reinforcement of flexible clip-type rails according to claim 1, characterized in that said clips (10) of step a are clamped by means of fixing means against the sides of the web of the rail.
7. The method for installing the elastic clamp type steel rail nondestructive reinforcement device according to claim 6, wherein the fixing tool (8) comprises a retainer (81) and two positioning blocks (82) with symmetrical positions, two ends of the retainer (81) are respectively provided with a jacking device (83), each positioning block (82) is positioned on the outer side of the abdomen of the clamping plate (10), two ends of the retainer (81) are positioned on the outer side of the positioning blocks (82), and each jacking device (83) is abutted with one positioning block (82) through the retainer (81);
the jacking device (83) comprises a jacking bolt (831) and a pressing plate (832), the jacking bolt (831) penetrates through the retainer (81), the jacking bolt (831) is in threaded connection with the retainer (81), the pressing plate (832) is penetrated out of one end of the retainer (81) through the jacking bolt (831), and the jacking bolt (831) sequentially penetrates through the retainer (81) and the pressing plate (832) and jacks up the positioning block (82).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710454327.XA CN107059513B (en) | 2017-06-15 | 2017-06-15 | Expansion tool of elastic clamp type steel rail nondestructive reinforcement device and installation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710454327.XA CN107059513B (en) | 2017-06-15 | 2017-06-15 | Expansion tool of elastic clamp type steel rail nondestructive reinforcement device and installation method |
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| Publication Number | Publication Date |
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| CN107059513A CN107059513A (en) | 2017-08-18 |
| CN107059513B true CN107059513B (en) | 2023-04-25 |
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| CN108127613B (en) * | 2017-12-29 | 2023-06-23 | 上海君屹工业自动化股份有限公司 | Reinforcing plate installation device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH389661A (en) * | 1962-01-18 | 1965-03-31 | Hoflex Ag | Device for attaching and loosening spring clips that are used to attach a rail to the sleepers |
| SE535945C2 (en) * | 2010-11-19 | 2013-02-26 | Rosenqvist Rail Ab | Hand-operated arrangement and method for attaching rail clips |
| CN204139004U (en) * | 2014-03-17 | 2015-02-04 | 铁道第三勘察设计院集团有限公司 | Rail can't harm ruggedized equipment |
| CN206941320U (en) * | 2017-06-15 | 2018-01-30 | 中铁(衡水)工务器材有限公司 | The expansion tool of the lossless bracing means of elastic holder type rail |
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