CN211626332U - Steel strand wires length measuring device - Google Patents
Steel strand wires length measuring device Download PDFInfo
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- CN211626332U CN211626332U CN202020342759.9U CN202020342759U CN211626332U CN 211626332 U CN211626332 U CN 211626332U CN 202020342759 U CN202020342759 U CN 202020342759U CN 211626332 U CN211626332 U CN 211626332U
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Abstract
The utility model relates to a steel strand wires length measuring device, including the mounting bracket, still include drive wheel, leading wheel and pinch roller, the drive wheel passes through the transmission shaft and installs on the mounting bracket, the tip of transmission shaft is provided with the counter, the both sides at the axis of rotation of drive wheel are divided to the leading wheel, the pinch roller is through compressing tightly the unit mount and on the mounting bracket and lean on the pressure on the drive wheel. The utility model effectively solves the problems of low precision and large error of the traditional conventional steel strand or epoxy spraying steel strand steel tape measure; the device has the advantages of simple and reasonable structure, simple and feasible processing and manufacturing, low manufacturing cost, quick and convenient installation, convenient carrying and carrying, simple and convenient operation, accurate and reliable measurement and low use cost.
Description
Technical Field
The utility model relates to a measuring equipment technical field, in particular to steel strand wires length measurement device.
Background
With the rapid development of the economy and the rapid promotion of the comprehensive national force in China, the development of the traffic engineering in China has already stepped into the express way of the rapid development, the construction of various large-span cable-stayed bridges and large-span prestressed concrete bridges is leap forward, the engineering scale is larger and larger, and the construction difficulty, the construction quality and the technical content are higher and higher. The engineering construction requirements are 'safe, environment-friendly, high in construction quality, fast in construction progress and low in construction cost'.
Bridge engineering is an important component in a transportation system, and the construction and operation states of bridges play a very important role in economic development. In the engineering design and construction process of a large-span cable-stayed bridge and a large-span prestressed concrete bridge, stay cables and prestressed steel strands are adopted for design, only two kinds of stay cables are generally adopted, one kind of stay cables is a parallel steel wire stay cable, the parallel steel wire stay cable is assembled according to design requirements in a factory at a manufacturer, and after leaving the factory, the stay cables are hung and tensioned in the construction process. The other one is a steel strand or epoxy sprayed steel strand stay cable, and the steel strand or epoxy sprayed steel strand stay cable is coiled and transported to a bridge construction site, and is cut according to the designed length before the stay cable is hung. The traditional conventional steel strand or epoxy spraying steel strand has the problems of low precision and large error in length measurement by using a steel tape. The area of a bridge construction site is narrow, the steel strand or the epoxy sprayed steel strand cannot be completely stretched into a straight line state, the steel strand or the epoxy sprayed steel strand is bent for length measurement, when the steel tape measures the steel strand or the epoxy sprayed steel strand, the steel tape cannot be completely attached to the steel strand when measuring the length due to the fact that the rigidity and the flexibility of the steel tape and the steel strand are different greatly, the length error of the steel tape measures the length greatly, particularly the length error of the steel strand when the steel tape measures the bending state is larger, and the length of a single steel strand is generally larger than 20-30 cm of the designed length.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a steel strand wires length measuring device solves the problem that traditional conventional steel strand wires adopt the steel tape measure length precision low, the error is big.
The above object of the present invention can be achieved by the following technical solutions: the utility model provides a steel strand wires length measuring device, includes the mounting bracket, still includes drive wheel, leading wheel and pinch roller, the drive wheel passes through the transmission shaft and installs on the mounting bracket, the tip of transmission shaft is provided with the counter, the both sides at the axis of rotation of drive wheel are established respectively to the leading wheel, the pinch roller is installed on the mounting bracket and is leaned on pressing on the drive wheel through compressing tightly the subassembly.
Preferably, the pressing wheel is arranged above the guide wheel, and the pressing assembly pushes the pressing wheel to press the driving wheel downwards.
Preferably, the pressing assembly comprises a guide rod and a pressing spring, the guide rod is vertically inserted into the mounting frame and can move up and down relative to the mounting frame, the driving wheel is arranged at the lower end of the guide rod, the pressing spring is sleeved on the guide rod and moves against the mounting frame, and the other end of the pressing spring abuts against the end part of the guide rod.
Preferably, the number of the guide rods is two, the two guide rods are respectively arranged on the left side and the right side of the pinch roller, and the lower ends of the two guide rods are connected with a rotating shaft for installing the pinch roller.
Preferably, the pinch roller is a nylon wheel.
The nylon pinch roller has large friction coefficient, can provide larger friction force, adjust the tightness degree of the compression spring, and can apply proper pressure to the nylon pinch roller so as to ensure that the steel strand and the driving wheel do not slip
Preferably, the guide wheel is installed on the installation frame through a telescopic assembly, and the distance between the guide wheel and the transmission wheel can be adjusted.
Adjust the length of flexible subassembly, the distance of leading wheel and drive wheel promptly, utilize the pressure that steel strand wires elastic deformation produced, apply the positive pressure for the drive wheel, thereby the elasticity degree of adjustment steel strand wires and drive wheel, the leading wheel telescopic link is adjusted and is shortened, pressure grow between leading wheel and the steel strand wires, the pressure grow between steel strand wires and the drive wheel, the frictional force grow between steel strand wires and the drive wheel, in order to guarantee that steel strand wires and leading wheel do not skid.
Preferably, the telescopic assembly comprises a fixed sleeve fixed on the mounting frame and a movable sleeve rod sleeved in the fixed sleeve, and the sleeve is provided with an adjusting bolt used for adjusting the telescopic length of the movable sleeve rod.
Preferably, the end of the movable sleeve rod is provided with a support, and the guide wheel is rotatably mounted on the support.
The utility model has the advantages that:
1. the utility model effectively solves the problems of low precision and large error of the traditional conventional steel strand or epoxy spraying steel strand steel tape measure;
2. the device has the advantages of simple and reasonable structure, simple and feasible processing and manufacturing, low manufacturing cost, quick and convenient installation, convenient carrying and carrying, simple and convenient operation, accurate and reliable measurement and low use cost.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of the present invention;
fig. 2 is a schematic diagram of a first measurement method in an embodiment of the present invention;
FIG. 3 is a schematic diagram of a second measurement method in an embodiment of the present invention;
fig. 4 is a schematic diagram of a third measurement mode in the embodiment of the present invention;
fig. 5 is a schematic diagram of a fourth measurement mode in the embodiment of the present invention;
in the figure: the device comprises a mounting frame, a transmission shaft 2, a transmission wheel 3, a counter 4, a rotating shaft 5, a pressing wheel 6, a guide rod 7, a compression spring 8, a guide wheel 9, a fixed sleeve 10, a movable sleeve rod 11 and an adjusting bolt 12.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent laws within the scope of the claims of the present invention.
Example (b): as shown in fig. 1, the steel strand length measuring device comprises an installation frame 1, a transmission wheel 3, a guide wheel 9 and a pressing wheel 6, wherein the transmission wheel 3 is installed on the installation frame 1 through a transmission shaft 2, and the transmission shaft 2 and the transmission wheel 3 rotate synchronously. The end of the transmission shaft 2 is provided with a counter 4, and the counter 4 is an electronic meter counter. The pinch roller 6 is located the leading wheel 9 top, and pinch roller 6 is installed on mounting bracket 1 and leans on the pressure on drive wheel 3 through compressing tightly the subassembly. The guide wheels 9 are respectively arranged on two sides of the rotating axis of the driving wheel 3, the guide wheels 9 are arranged on the mounting frame 1 through telescopic components, and the distance between the guide wheels 9 and the driving wheel 3 can be adjusted.
The driving wheel 3 and the guide wheel 9 are both made of steel wheels, the wheel surfaces of the driving wheel and the guide wheel are both provided with annular grooves, and the pressing wheel 6 is a nylon wheel.
The telescopic assembly comprises a fixed sleeve 10 fixed on the mounting frame 1 and a movable loop bar 11 sleeved in the fixed sleeve 10, and the movable loop bar 11 can axially move relative to the fixed sleeve 10. The end part of the movable loop bar 11 is provided with a support, and the guide wheel 9 is rotatably arranged on an upper sleeve of the support and is provided with an adjusting bolt 12 for adjusting the telescopic length of the movable loop bar 11.
The pressing assembly comprises a guide rod 7 and a pressing spring 8, the guide rod 7 is vertically inserted into the mounting rack 1 in a splicing mode and can move up and down relative to the mounting rack 1, the driving wheel 3 is arranged at the lower end of the guide rod 7, the pressing spring 8 is sleeved on the guide rod 7, the pressing spring moves to abut against the mounting rack 1, and the other end of the pressing spring abuts against the end portion of the guide rod 7. The two guide rods 7 are respectively arranged at the left side and the right side of the pinch roller 6, and the lower ends of the two guide rods 7 are connected with a rotating shaft 5 for installing the pinch roller 6.
The measuring mode of the steel strand length measuring device is as follows:
in the first measurement mode, as shown in fig. 2, the steel strand to be measured is placed above the two guide wheels 9 and the annular groove of the transmission wheel 3, and the length of the steel strand between the transmission wheel 3 and the two guide wheels 9 is measured by a steel ruler, because the length of the steel strand between the transmission wheel 3 and the guide wheels 9 is not measured by the counter 4. And the pinch roller 6 is used for pressing the steel strand, the tightness degree of the compression spring 8 is adjusted, the steel strand is not slipped on the driving wheel 3, the steel strand is manually pulled to advance at a constant speed, the steel strand drives the driving wheel 3 to rotate, and the transmission shaft 2 drives the counter 4 to measure the length of the steel strand. When the counter 4 measures that the steel strand reaches the designed length, the steel strand is manually stopped to be pulled, and the counter 4 is set to return to zero before measurement every time.
In the second measurement mode, as shown in fig. 3, the steel strand to be measured is placed above the two guide wheels 9, the steel strand is placed below the driving wheel 3, and the length of the steel strand between the driving wheel 3 and the two guide wheels 9 is measured by a steel ruler. Because the length of the strand between the drive wheel 3 and the guide wheel 9 is not measured by the counter 4. The telescopic assembly is shortened, the guide wheel 9 props against the steel strand from bottom to top, the steel strand elastically deforms and props against the driving wheel 3 from bottom to top, and positive pressure between the steel strand and the driving wheel 3 is increased, so that friction between the steel strand and the driving wheel 3 is increased, and the steel strand and the driving wheel cannot slip. The length of the telescopic assembly is adjusted, so that the tightness degree of the steel strand and the guide wheel 9 is adjusted, the steel strand and the driving wheel 3 are guaranteed not to slip, the steel strand is manually pulled at a constant speed to advance, the steel strand drives the driving wheel 3 to rotate, and the transmission shaft 2 drives the counter 4 to measure the length of the steel strand. And when the counter 4 measures that the steel strand reaches the designed length, manually stopping pulling the steel strand. Before each measurement, the counter 4 is set to zero.
And in a third measuring mode, as shown in fig. 4, the steel strand to be measured is placed below the guide wheel 9, the steel strand is placed above the driving wheel 3, and the steel strand is pressed by a nylon pressing wheel, so that the tightness of a spring of the nylon pressing wheel is adjusted. The telescopic assembly is shortened, the guide wheel 9 supports against the steel strand from top to bottom, and the positive pressure between the steel strand and the guide wheel 9 is increased. The guide wheel 9 props against the steel strand from bottom to top, the steel strand elastically deforms and props against the driving wheel 3 from bottom to top, and the positive pressure between the steel strand and the driving wheel 3 is increased, so that the friction between the steel strand and the driving wheel 3 is increased, and the steel strand and the driving wheel 3 cannot slip. The steel strand is pulled at a constant speed manually to advance, the steel strand drives the driving wheel 3 to rotate, and the transmission shaft 2 drives the counter 4 to measure the length of the steel strand. And when the counter 4 measures that the steel strand reaches the designed length, manually stopping pulling the steel strand. Before each measurement, the counter 4 is set to zero.
And a fourth measuring mode is that as shown in fig. 5, the steel strand to be measured is placed below the right guide wheel 7, above the left guide wheel, the right guide wheel and the driving wheel 3, the steel strand is pressed by the pressing wheel 6, and the tightness degree of the pressing spring 8 is adjusted. The telescopic assembly is shortened, the guide wheel 9 is pressed against the steel strand from top to bottom, the pressure between the steel strand and the driving wheel 3 is increased, the friction between the steel strand and the driving wheel 3 is increased, and the steel strand and the driving wheel 3 cannot slip. The steel strand is pulled at a constant speed manually to advance, the steel strand drives the driving wheel 3 to rotate, and the transmission shaft 2 drives the counter 4 to measure the length of the steel strand. And when the counter 4 measures that the steel strand reaches the designed length, manually stopping pulling the steel strand. Before each measurement, the counter 4 is set to zero.
Claims (8)
1. The utility model provides a steel strand wires length measuring device, includes mounting bracket (1), its characterized in that: still include drive wheel (3), leading wheel (9) and pinch roller (6), install on mounting bracket (1) drive wheel (3) through transmission shaft (2), the tip of transmission shaft (2) is provided with counter (4), the both sides at the axis of rotation of drive wheel (3) are established respectively in leading wheel (9), pinch roller (6) are through compressing tightly the unit mount on mounting bracket (1) and lean on the pressure on drive wheel (3).
2. The steel strand length measuring device according to claim 1, characterized in that: the pressing wheel (6) is arranged above the guide wheel (9), and the pressing assembly pushes the pressing wheel (6) to be pressed against the driving wheel (3) downwards.
3. The steel strand length measuring device according to claim 2, characterized in that: the pressing assembly comprises a guide rod (7) and a pressing spring (8), the guide rod (7) is vertically inserted into the mounting frame (1) and can move up and down relative to the mounting frame (1), the driving wheel (3) is arranged at the lower end of the guide rod (7), the pressing spring (8) is sleeved on the guide rod (7) and moves to abut against the mounting frame (1), and the other end of the pressing spring abuts against the end of the guide rod (7).
4. The steel strand length measuring device according to claim 3, characterized in that: the two guide rods (7) are respectively arranged at the left side and the right side of the pinch roller (6), and the lower ends of the two guide rods (7) are connected with a rotating shaft (5) used for installing the pinch roller (6).
5. The steel strand length measuring device according to claim 4, characterized in that: the pinch roller (6) is a nylon wheel.
6. The steel strand length measuring device according to claim 1, characterized in that: the guide wheel (9) is installed on the installation frame (1) through a telescopic assembly, and the distance between the guide wheel (9) and the transmission wheel (3) can be adjusted.
7. The steel strand length measuring device according to claim 6, characterized in that: the telescopic assembly comprises a fixed sleeve (10) fixed on the mounting frame (1) and a movable loop bar (11) sleeved in the fixed sleeve (10), and an adjusting bolt (12) used for adjusting the telescopic length of the movable loop bar (11) is arranged on the sleeve.
8. The steel strand length measuring device according to claim 7, wherein: the end part of the movable loop bar (11) is provided with a support, and the guide wheel (9) is rotatably arranged on the support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020342759.9U CN211626332U (en) | 2020-03-18 | 2020-03-18 | Steel strand wires length measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020342759.9U CN211626332U (en) | 2020-03-18 | 2020-03-18 | Steel strand wires length measuring device |
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| Publication Number | Publication Date |
|---|---|
| CN211626332U true CN211626332U (en) | 2020-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020342759.9U Active CN211626332U (en) | 2020-03-18 | 2020-03-18 | Steel strand wires length measuring device |
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| CN (1) | CN211626332U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114264396A (en) * | 2021-12-18 | 2022-04-01 | 中建八局第二建设有限公司 | Device and method for detecting prestress of steel bar or steel strand for bridge construction |
-
2020
- 2020-03-18 CN CN202020342759.9U patent/CN211626332U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114264396A (en) * | 2021-12-18 | 2022-04-01 | 中建八局第二建设有限公司 | Device and method for detecting prestress of steel bar or steel strand for bridge construction |
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