CN210664403U - Length measuring device for prestressed steel strand of bridge - Google Patents
Length measuring device for prestressed steel strand of bridge Download PDFInfo
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- CN210664403U CN210664403U CN201921065084.1U CN201921065084U CN210664403U CN 210664403 U CN210664403 U CN 210664403U CN 201921065084 U CN201921065084 U CN 201921065084U CN 210664403 U CN210664403 U CN 210664403U
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
A length measuring device for a bridge prestressed steel strand comprises a threading pipe, a handle, a pressing wheel, a synchronizing wheel, a connecting rod and a handle seat, the handle is arranged above the handle seat and is pressed against the handle seat, the connecting rod passes through the handle seat and is rotationally connected with the handle through a connecting piece, the lower end of the connecting rod is connected with a pressing wheel which is arranged in a rotating way, a synchronizing wheel which is arranged in a rolling way is arranged below the pressing wheel, the synchronizing wheel drives an encoder which is connected with the PLC, the encoder transmits the collected information to the PLC, when the handle rotates upwards, the transmission connecting rod drives the pressing wheel to move upwards, when in measurement, the steel strand penetrates through one end of the threading pipe and then is arranged between the pressing wheel and the synchronous wheel and then penetrates out from the other end of the threading pipe, when the handle rotates downwards, the transmission connecting rod drives the pressing wheel to move downwards, and the pressing wheel and the synchronizing wheel compress the steel strand.
Description
Technical Field
The utility model relates to a bridge building engineering field especially relates to a length measurement device of bridge prestressing force steel strand wires.
Background
At present, prestressed steel materials adopted in bridge construction are mainly steel strands with high strength and low relaxation degree. However, in practical applications, the length of the steel strand needs to be accurately measured. The method adopted in the construction comprises the steps of straightening, measuring and cutting the steel strand manually, the method is large in manual demand, the accuracy of the length of the steel strand is difficult to guarantee, and meanwhile, the steel strand with longer length is easy to bend in the blanking process to cause the rejection of the steel strand or leave potential safety hazards.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a measure accurate, the waste material is few, practice thrift the length-measuring device of a bridge prestressing force steel strand wires of manpower.
The utility model adopts the technical proposal that the length measuring device of the bridge prestressed steel strand comprises a threading pipe, a handle, a pinch roller, a synchronous wheel, a connecting rod and a handle seat, wherein the handle is arranged above the handle and is abutted against the handle seat, the connecting rod passes through the handle seat and is rotationally connected with the handle through a connecting piece, the lower end of the connecting rod is connected with the pinch roller which is rotationally arranged, the lower part of the pinch roller is provided with the synchronous wheel which is arranged in a rolling way, the synchronous wheel drives an encoder, the encoder is connected with a PLC, the encoder transmits the collected information to the PLC, when the handle rotates upwards, the transmission connecting rod drives the pinch roller to move upwards, when in the measuring work, the steel strand passes through one end of the threading pipe and then penetrates out from the other end of the threading pipe after being arranged between the pinch roller and the synchronous wheel, when the handle rotates downwards, the transmission, the pinch roller and the synchronizing wheel compress the steel strand.
The synchronizing wheel is two, and the center of two synchronizing wheels is on same water flat line, set up with synchronous belt drive between the synchronizing wheel.
The utility model discloses still include the take-up pulley, the take-up pulley sets up in the outside of hold-in range and the hold-in range of contradicting.
The centre of a circle of synchronizing wheel and pinch roller is on a vertical line.
The utility model discloses still include the spring, the external diameter at the connecting rod is established to the spring housing.
The utility model discloses the position of conflict handle seat is equipped with convex curved surface when the handle rotates, when the free end of handle upwards rotated, the handle rotated around convex curved surface.
Compared with the prior art, the beneficial effects of the utility model reside in that:
1. the utility model discloses a machine replaces artifical the measurement, has not only practiced thrift the manpower and improved the precision of survey steel strand wires length.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of another view angle of the present invention.
Detailed Description
The invention will be further explained by the embodiments with reference to the drawings.
As shown in fig. 1 to 2, the length measuring device of a prestressed steel strand for a bridge of the present embodiment includes a base, a threading pipe 1, a handle 2, a pressing wheel 3, a synchronizing wheel 41, a connecting rod 5, and a handle base 7, wherein the threading pipe 1 is disposed on both sides of the base and fixedly connected to the base, the handle base 7 is fixedly connected to the base, the pressing wheel 3 and the synchronizing wheel 41 are respectively roll-mounted on the base, the handle 2 is disposed above the handle base 7 and abuts against the handle base 7, the connecting rod 5 passes through the handle base 7 and is rotatably connected to the handle 2 through a connecting member 8, the lower end of the connecting rod 5 is connected to the pressing wheel 3, the lower portion of the pressing wheel 3 is provided with the synchronizing wheel 41, the synchronizing wheel 41 drives an encoder, the encoder is connected to the PLC, the encoder transmits collected information to the PLC, and when the handle 2 rotates upwards, the connecting rod 5 drives the pressing wheel 3, during measurement, the steel strand wires are arranged between the pressing wheel 3 and the synchronizing wheel 41 after passing through one end of the threading pipe 1 and then penetrate out of the other end of the threading pipe 1, when the handle 2 rotates downwards, the transmission connecting rod 5 drives the pressing wheel 3 to move downwards, and the pressing wheel 3 and the synchronizing wheel 41 compress the steel strand wires tightly.
Preferably, the method comprises the following steps: the number of the synchronizing wheels 41 is two, the centers of the two synchronizing wheels 41 are on the same horizontal line, and the synchronizing wheels 41 are arranged in a transmission manner through a synchronous belt 42. And a tension pulley 43, wherein the tension pulley 43 is arranged at the outer side of the timing belt 42 and abuts against the timing belt 42. The two synchronizing wheels 41 are arranged to enable the length of the steel strand to be measured more accurately, and the synchronizing wheels 41 are driven by a synchronous belt 42 to save energy and ensure synchronous rotation. The tension wheel 43 is used for pressing the synchronous belt 42, so that synchronous transmission of the two synchronous wheels 41 is ensured.
Preferably, the method comprises the following steps: the centers of the synchronous wheels 41 and the pinch roller 3 are on a vertical line. The purpose is to enable the pressing wheel 3 and the synchronizing wheel 41 to be more compactly compressed and the steel strand to be evenly stressed, so that the precision of measuring the length of the steel strand is improved.
This embodiment still includes spring 6, spring 6 cover is established at the external diameter of connecting rod 5. One end of the spring 6 is propped against the handle seat 7, and the other end of the spring 6 is propped against the connecting rod 5. The spring 6 can prevent the pressing wheel 3 from rising or falling too fast in the process of rotating the handle 2 upwards or downwards, so that the proper positions of different degrees of pressing the steel strand by the pressing wheel 3 are found, and the accuracy of measuring the steel strand is ensured.
In this embodiment, the portion of the handle 2 abutting against the handle seat 7 when rotating is provided with the arc-shaped curved surface 21, and when the free end of the handle 2 rotates upwards, the handle 2 rotates upwards around the arc-shaped curved surface 21. The connecting piece 8 moves upwards, the handle 2 drives the connecting rod 5 to move upwards as the handle 2 is rotationally connected with the connecting rod 5 through the connecting line 8, the connecting rod 5 and the pressing wheel 3 are fixedly arranged, the pressing wheel 3 moves upwards under the driving of the connecting rod 5, at the moment, the pressing wheel 3 loosens steel strands, when the free end of the handle 2 reaches the highest point, the pressing wheel 3 reaches the highest point, required different types of steel strands can be replaced, when the free end of the handle 2 rotates downwards from the highest point, the handle 2 rotates downwards around the arc-shaped curved surface 21, the connecting piece 8 moves downwards, as the handle 2 is rotationally connected with the connecting rod 5 through the connecting line 8, the handle 2 drives the connecting rod 5 to move downwards, and as the connecting rod 5 is fixedly arranged with the pressing wheel 3, the pressing wheel 3 moves downwards under the driving of the connecting rod 5, in the process of moving downwards, the pinch roller 3 gets closer to the synchronizing wheel 41 until the pinch roller 3 and the synchronizing wheel 41 completely compress the steel strand.
The measurement method of this example is as follows: the free end of handle 2 is pushed down for pinch roller 3 downstream compresses tightly the steel strand wires with synchronizing wheel 41, sets for the girth of synchronizing wheel 41, rotates through the motor and drives the steel strand wires forward motion, the information transmission of synchronizing wheel 41 number of turns and angle that synchronizing wheel 41 driven encoder gathered gives PLC, PLC can calculate the extension length of tapping the stranded wire, when the steel strand wires reachd required length, PLC sends out instruction motor stall, cut off the steel strand wires that will stretch out.
Claims (6)
1. The utility model provides a length measurement device of bridge prestressing steel strand which characterized in that: comprises a threading pipe (1), a handle (2), a pressing wheel (3), a synchronizing wheel (41), a connecting rod (5) and a handle seat (7), wherein the threading pipe (1) is respectively arranged at two sides of the machine seat and is fixedly connected with the machine seat, the handle seat (7) is fixedly connected with the machine seat, the pressing wheel (3) and the synchronizing wheel (41) are respectively arranged on the machine seat in a rolling way, the handle (2) is arranged above the handle seat (7) and is abutted against the handle seat (7), the connecting rod (5) passes through the handle seat (7) and is rotatably connected with the handle (2) through a connecting piece (8), the lower end of the connecting rod (5) is connected with the pressing wheel (3) which is rotatably arranged, the synchronizing wheel (41) which is rotatably arranged is arranged below the pressing wheel (3), the synchronizing wheel (41) drives an encoder, the encoder is connected with the PLC, the encoder transmits the collected information to the PLC, and when the handle (2) rotates upwards, transmission connecting rod (5) drive pinch roller (3) upward movement, measure the during operation, the steel strand wires set up after passing from the one end of threading pipe (1) and wear out from the other end of threading pipe (1) behind between pinch roller (3) and synchronizing wheel (41), when handle (2) rotate downwards, transmission connecting rod (5) drive pinch roller (3) downstream, pinch roller (3) and synchronizing wheel (41) compress tightly the steel strand wires.
2. The device of claim 1, wherein: the synchronous wheels (41) are two, the centers of the two synchronous wheels (41) are on the same horizontal line, and the synchronous wheels (41) are arranged in a transmission mode through a synchronous belt (42).
3. The device of claim 2, wherein: the device also comprises a tension wheel (43), wherein the tension wheel (43) is arranged on the outer side of the synchronous belt (42) and abuts against the synchronous belt (42).
4. The device for measuring the length of the prestressed steel strand for the bridge according to claim 1 or 2, wherein: the centers of the synchronous wheel (41) and the pinch roller (3) are on a vertical line.
5. The device of claim 1, wherein: still include spring (6), spring (6) cover is established at the external diameter of connecting rod (5).
6. The device of claim 1, wherein: when the handle (2) rotates, a part abutting against the handle seat (7) is provided with a circular arc-shaped curved surface (21), and when the free end of the handle (2) rotates upwards, the handle (2) rotates around the circular arc-shaped curved surface (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921065084.1U CN210664403U (en) | 2019-07-09 | 2019-07-09 | Length measuring device for prestressed steel strand of bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921065084.1U CN210664403U (en) | 2019-07-09 | 2019-07-09 | Length measuring device for prestressed steel strand of bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210664403U true CN210664403U (en) | 2020-06-02 |
Family
ID=70816820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921065084.1U Active CN210664403U (en) | 2019-07-09 | 2019-07-09 | Length measuring device for prestressed steel strand of bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210664403U (en) |
-
2019
- 2019-07-09 CN CN201921065084.1U patent/CN210664403U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 314000 Room 301, 251 Chengxiu Road, Xincheng street, Xiuzhou District, Jiaxing City, Zhejiang Province Patentee after: Xingtu Co.,Ltd. Address before: 314000 Room 301, 251 Chengxiu Road, Xincheng street, Xiuzhou District, Jiaxing City, Zhejiang Province Patentee before: ZHEJIANG XINGTU BRIDGE TEMPORARY STEEL STRUCTURE ENGINEERING CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder |