CN212554397U - Assembly type prestress tension rod of high-speed railway ballastless track plate flow unit method - Google Patents
Assembly type prestress tension rod of high-speed railway ballastless track plate flow unit method Download PDFInfo
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- CN212554397U CN212554397U CN202020870388.1U CN202020870388U CN212554397U CN 212554397 U CN212554397 U CN 212554397U CN 202020870388 U CN202020870388 U CN 202020870388U CN 212554397 U CN212554397 U CN 212554397U
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- steel bar
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- joint
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Abstract
A flow machine set method decomposition type prestress tension rod of a high-speed railway ballastless track slab is characterized in that the front part of the tension rod is connected with the rear part of the tension rod through threads and a positioning pin; the front end of the front part of the pull rod is provided with a stress steel bar connecting part, the peripheral diameter of the stress steel bar connecting part is gradually reduced, the peripheral diameter of the end part is larger than that of the prestressed steel bar, and a prestressed steel bar connecting threaded hole is formed in the stress steel bar connecting part; the locking screw thread is arranged outside the rear part of the pull rod, the locking nut is sleeved on the rear part of the pull rod through the locking screw thread, and a flat washer is arranged on one side of the locking nut, which is close to the front part of the pull rod; a flat nut is installed at one end part of the rear part of the pull rod, which is far away from the front part of the pull rod, and a cylindrical pin is arranged at the corresponding position of the flat nut and the rear part of the pull rod. The utility model discloses a pull rod front portion and pull rod rear portion threaded connection's mode, realization stretch-draw pole resolvable function realize corresponding the change of position when the pull rod is anterior or the rear portion is impaired, improve the utilization ratio of stretch-draw pole effective part, reduce the use cost of stretch-draw pole.
Description
Technical Field
The utility model relates to a high-speed railway track board construction field, concretely relates to high-speed railway ballastless track board assembly line method prestressing force stretch-draw pole that a decomposition formula prestressing force stretch-draw technology used.
Background
The prestressed tensioning process is the core of the CRTS III type pretensioning prestressed concrete track slab construction process, the tensioning rod used in the current flow machine set prestressed tensioning process is integral, the front end of the tensioning rod and the prestressed reinforcement connecting part are extremely easy to damage in the construction process, and the whole tensioning rod is scrapped, so that the key for controlling the construction cost of the track slab is to prolong the service life of the tensioning rod.
Disclosure of Invention
The utility model provides a high-speed railway ballastless track board assembly line unit method decomposition formula prestressing force stretch-draw pole realizes thereby stretch-draw pole resolvable change extension stretch-draw pole life's purpose through threaded connection and the fixed mode of assistance with the round pin head.
In order to realize the purpose, the utility model discloses a technical scheme be:
a flow machine set method decomposition type prestress tension rod for a high-speed railway ballastless track plate comprises a tension rod front part and a tension rod rear part, wherein the tension rod front part and the tension rod rear part are connected through threads and positioning pins; the front end of the front part of the pull rod is provided with a stress steel bar connecting part, the peripheral diameter of the stress steel bar connecting part is gradually reduced, the peripheral diameter of the end part is larger than that of the prestressed steel bar, and a prestressed steel bar connecting threaded hole is formed in the stress steel bar connecting part; the locking screw thread is arranged outside the rear part of the pull rod, the locking nut is sleeved on the rear part of the pull rod through the locking screw thread, and a flat washer is arranged on one side of the locking nut, which is close to the front part of the pull rod; the pull rod is characterized in that a flat nut is mounted at the end part of one end of the rear part of the pull rod, which is far away from the front part of the pull rod, and a cylindrical pin is arranged at the corresponding position of the flat nut and the rear part of the pull rod.
One end of the rear part of the pull rod, which is close to the front part of the pull rod, is provided with a joint external thread rod, and a joint pin hole is formed in the joint external thread rod; one end of the front part of the pull rod, which is close to the rear part of the pull rod, is provided with a joint internal thread hole, and a joint positioning pin is arranged on the joint internal thread hole; the external thread rod at the joint is inserted into the internal thread hole at the joint, and the positioning pin at the joint is inserted into the pin hole at the joint.
The locking thread has the same direction with the internal thread of the stress steel bar connecting part, and the locking thread has the opposite direction with the thread of the external thread rod at the connecting part.
The front part of the pull rod is provided with an elastic cotter pin.
The utility model has the advantages that: the utility model discloses a high-speed railway ballastless track board flowing water unit method decomposition type prestressing force stretch-draw pole, the pull rod before the pull rod with pull rod rear rod threaded connection's mode, realize stretch-draw pole resolvable function, realize the change that corresponds the position when the pull rod is anterior or the rear portion is impaired, improve the utilization ratio of stretch-draw pole effective part, reduce the use cost of stretch-draw pole.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a usage state diagram of the present invention.
Detailed Description
The present invention will be further explained with reference to the drawings and examples. Where the description refers to the accompanying drawings, the same numbers in different drawings represent the same or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus consistent with certain aspects of the invention, as detailed in the appended claims.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of the terms "comprising" or "including" and the like in the present application is intended to cover the elements or items listed before or after the term and their equivalents, without excluding other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
A flow machine set method decomposition type prestress tension rod for a high-speed railway ballastless track plate comprises a tension rod front portion 12 and a tension rod rear portion 3, wherein the tension rod front portion 12 and the tension rod rear portion 3 are connected through threads and positioning pins.
The front end of the front portion 12 of the pull rod is provided with a stress steel bar connecting portion 13, the peripheral diameter of the stress steel bar connecting portion 13 is gradually reduced, the peripheral diameter of the end portion is larger than that of a prestressed steel bar, and a prestressed steel bar connecting threaded hole is formed in the stress steel bar connecting portion 13.
One end of the rear part 3 of the pull rod, which is close to the front part 12 of the pull rod, is provided with a connecting part external thread rod 8, and the connecting part external thread rod 8 is provided with a connecting part pin hole 7; one end of the pull rod front part 12 close to the pull rod rear part 3 is provided with a joint internal thread hole 10, and a joint positioning pin 9 is arranged on the joint internal thread hole 10; the external thread rod 8 at the joint is inserted into the internal thread hole 10 at the joint, and the positioning pin 9 at the joint is inserted into the pin hole 7 at the joint. Therefore, the connection and the disassembly of the front part 12 of the pull rod and the rear part 3 of the pull rod are realized, the replacement of the corresponding part is realized after the components of the front part 12 of the pull rod or the rear part 3 of the pull rod are damaged, and the service life of the components is prolonged.
The outer part of the rear part 3 of the pull rod is provided with a locking thread 4, a locking nut 5 is sleeved on the rear part 3 of the pull rod through the locking thread 4, and one side of the locking nut 5 close to the front part 12 of the pull rod is provided with a flat washer 6. During tensioning operation, the tensioning equipment engages the transverse and longitudinal movable end decomposition type prestress tensioning rod flat nut 1 through a connector, tensioning operation is completed through a hydraulic system of the tensioning equipment, then the tensioning equipment performs nut locking operation, and the locking nut 5 is driven to rotate on the locking thread 4 towards the direction of the connecting thread 13 through equipment screwing until the locking nut 5 and the flat washer 6 are completely attached to a tensioning hole flange sleeve of the die, so that tensioning force is kept; wherein the flat washer 6 functions to reduce the tension friction resistance and reduce the wear of the locking nut 5.
The pull rod is characterized in that a flat nut 1 is installed at one end part of the pull rod rear part 3, which is far away from the pull rod front part 12, and a cylindrical pin 2 is arranged at the corresponding position of the flat nut 1 and the pull rod rear part 3. The flat nut 1 is connected with the rear part 3 of the pull rod through threads, and the cylindrical pin 2 is fixed. The thread direction is the same as that of the joint of the tie rod front part 12 and the tie rod rear part 3.
The locking thread 4 and the stress steel bar connecting part 13 have the same internal thread direction, and the locking thread 4 and the external thread rod 8 at the connecting part have opposite thread directions. The front part of the pull rod is prevented from being separated from the rear part of the pull rod in the process of screwing the pull rod.
The front part 12 of the pull rod is provided with an elastic cotter pin 11. The elastic cotter 11 adopts an ear knife type design to form a special locking structure with the inner cavity of the die frame, thereby avoiding the separation of the tension rod from the die when the tension rod is not in a holding force state.
When in specific use:
the outer part of the rear part 3 of the pull rod is provided with a locking thread 4, a locking nut 5 is sleeved on the rear part 3 of the pull rod through the locking thread 4, and one side of the locking nut 5 close to the front part 12 of the pull rod is provided with a flat washer 6. During tensioning operation, the tensioning equipment engages the transverse and longitudinal movable end decomposition type prestress tensioning rod flat nut 1 through a connector, tensioning operation is completed through a hydraulic system of the tensioning equipment, then the tensioning equipment performs nut locking operation, and a locking nut 5 is driven to rotate towards the direction of the rear part 3 of the tensioning rod on a locking thread 4 through equipment screwing until the locking nut 5 and a flat gasket 6 are completely attached to a tensioning hole flange sleeve of a mould, so that tensioning force is kept; wherein the flat washer 6 functions to reduce the tension friction resistance and reduce the wear of the locking nut 5. In the whole operation process, the tension rod flat nut 1 is used as a direct stress part, and the locking nut 5 is used as a screwing part.
Claims (4)
1. The utility model provides a high-speed railway ballastless track board assembly line machine method decomposition formula prestressing force stretch-draw pole which characterized in that: the pull rod comprises a pull rod front part (12) and a pull rod rear part (3), wherein the pull rod front part (12) is connected with the pull rod rear part (3) through threads and a positioning pin; the front end of the front part (12) of the pull rod is provided with a stress steel bar connecting part (13), the peripheral diameter of the stress steel bar connecting part (13) is gradually reduced, the peripheral diameter of the end part is larger than that of a prestressed steel bar, and a prestressed steel bar connecting threaded hole is formed in the stress steel bar connecting part (13); a locking thread (4) is arranged outside the rear part (3) of the pull rod, a locking nut (5) is sleeved on the rear part (3) of the pull rod through the locking thread (4), and a flat washer (6) is arranged on one side, close to the front part (12) of the pull rod, of the locking nut (5); the pull rod is characterized in that a flat nut (1) is installed at one end part, far away from the pull rod front part (12), of the pull rod rear part (3), and a cylindrical pin (2) is arranged at the corresponding position of the flat nut (1) and the pull rod rear part (3).
2. The flow machine assembly decomposed prestressed tension rod of the high-speed railway ballastless track slab according to claim 1, wherein: one end of the rear part (3) of the pull rod, which is close to the front part (12) of the pull rod, is provided with a connecting part external thread rod (8), and a connecting part pin hole (7) is arranged on the connecting part external thread rod (8); one end of the front part (12) of the pull rod, which is close to the rear part (3) of the pull rod, is provided with a joint internal thread hole (10), and a joint positioning pin (9) is arranged on the joint internal thread hole (10); the external thread rod (8) at the joint is inserted into the internal thread hole (10) at the joint, and the positioning pin (9) at the joint is inserted into the pin hole (7) at the joint.
3. The flow machine assembly decomposed prestressed tension rod of the high-speed railway ballastless track slab according to claim 2, wherein: the locking thread (4) and the internal thread direction of the stress steel bar connecting part (13) are the same, and the locking thread (4) and the thread direction of the external thread rod (8) at the connecting part are opposite.
4. The flow machine assembly decomposed prestressed tension rod of the high-speed railway ballastless track slab according to claim 1, wherein: the front part (12) of the pull rod is provided with an elastic cotter pin (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020870388.1U CN212554397U (en) | 2020-05-22 | 2020-05-22 | Assembly type prestress tension rod of high-speed railway ballastless track plate flow unit method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020870388.1U CN212554397U (en) | 2020-05-22 | 2020-05-22 | Assembly type prestress tension rod of high-speed railway ballastless track plate flow unit method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212554397U true CN212554397U (en) | 2021-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020870388.1U Active CN212554397U (en) | 2020-05-22 | 2020-05-22 | Assembly type prestress tension rod of high-speed railway ballastless track plate flow unit method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212554397U (en) |
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2020
- 2020-05-22 CN CN202020870388.1U patent/CN212554397U/en active Active
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