Steel wire tensioning positioner based on central datum reference line positioning and using method thereof

Abstract

The invention provides a steel wire tensioning positioner based on center datum reference line positioning and a using method thereof, the steel wire tensioning positioner comprises an adjuster support and a sliding frame, and the sliding frame is in sliding fit with three guide grooves in the top of the adjuster support through three trapezoidal sliding rails on the side face; the positioning wheel is mounted on a strut at the upper part of the sliding frame through a positioning wheel fixing pin; a first guide wheel and a second guide wheel are rotationally mounted on the adjuster support; a steel wire locking column is further rotationally connected to the adjuster support, and a steel wire locking crank is connected to the tail end of the steel wire locking column. The transverse adjustment digital display micrometer is arranged on the sliding frame and is connected with the positioning wheel fixing pin; and the longitudinal adjustment digital display micrometer and the digital display tension meter are respectively fixed on a fixed seat on the adjuster support. Accurate positioning adjustment is carried out through the two micrometers, the vertical position and the horizontal position of the steel wire can be effectively controlled, and the adjustment accuracy can reach 0.001 mm; and the digital display tension meter is used for measuring the tensioning force of the steel wire in real time, so that the accurate control of the tensioning force is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of equipment installation and positioning, and in particular to a steel wire tensioning positioner positioned based on a central datum reference line and a method for using the same. Background Art

[0002] During the installation of equipment such as steam turbines and multi-tube bundle heaters that require extremely high installation accuracy (≤0.05mm), a steel wire needs to be pulled as a reference line for finding the center. The steel wire must also be accurately positioned and its sag must be calculated. Otherwise, it will be difficult to meet the high-precision installation requirements.

[0003] The existing technology mainly has the following problems: First, round steel is used as the fulcrum of the steel wire and the dial indicator is used to monitor the horizontal displacement. The steel wire is tightened by dropping objects such as shackles and steel plates from under the steel wire. This method is difficult to adjust during installation and layout. A slight touch will cause the steel wire to deviate by tens or hundreds of microns, and each adjustment takes 0.5 days; second, shackles, steel plates and other objects are difficult to reach the precise weight required for tightening the steel wire, and the change in the sag of the steel wire will directly affect the installation accuracy of equipment components; third, the steel wire is used as the center reference line and is easily touched by mistake during use, resulting in displacement of the steel wire and the dial indicator. Timely adjustment and reset are required before continuing the installation operation. Summary of the Invention

[0004] The purpose of the present invention is to provide a wire tensioning locator based on a center datum reference line positioning and a method of using the same, aiming to solve the problems of difficulty in adjusting the center line of the reference datum for high-precision assembly of equipment, large vertical arc deviation, and easy displacement due to accidental contact.

[0005] According to one purpose of the present invention, the present invention provides a wire tensioning locator for positioning based on a center datum reference line, comprising an adjuster support, a sliding frame, a positioning wheel, a lateral adjustment digital micrometer, a longitudinal adjustment digital micrometer and a digital tension meter, wherein the sliding frame slides with the three guide grooves on the top of the adjuster support through three trapezoidal slide rails on the side; the positioning wheel is mounted on the support pillar on the upper part of the sliding frame through a positioning wheel fixing pin; a first guide wheel and a second guide wheel are rotatably mounted on the adjuster support; a wire locking column is also rotatably connected to the adjuster support, and the end of the wire locking column is connected to a wire locking crank; the lateral adjustment digital micrometer is mounted on the sliding frame and connected to the positioning wheel fixing pin; the longitudinal adjustment digital micrometer and the digital tension meter are respectively fixed on the fixing seat on the adjuster support.

[0006] Furthermore, the adjuster support includes a vertically fixed vertical plate and a bottom plate.

[0007] Furthermore, the first guide wheel and the second guide wheel are mounted on the front side of the adjuster support through a first fixing pin and a second fixing pin respectively.

[0008] Furthermore, the wire locking column passes through the adjuster support and is connected to the wire locking crank.

[0009] Furthermore, three pillars are provided on the upper portion of the sliding frame, wherein the positioning wheel fixing pins are installed on two of the pillars, and the lateral adjustment digital micrometer is installed on the third pillar.

[0010] Furthermore, a wire through hole is provided on the side of the wire locking column, and an internal threaded hole is provided at the end of the wire locking column and the gear is fixed by a screw.

[0011] Furthermore, the digital tension meter has a measuring range of 0-50kg and an accuracy of 0.004kg; the adjustment range of the horizontal and vertical digital micrometers is 0-25mm and an accuracy of 0.001mm.

[0012] According to another object of the present invention, the present invention provides a method for using the wire tensioning locator based on the center reference line positioning, comprising the steps of: S1. Prepare two steel wire tensioning positioners and fix them to the equipment installation position; S2. Pass the steel wire through the positioning wheels, the first guide wheel and the second guide wheel of the two steel wire tensioning positioners in sequence, and then connect them to the digital tension meter; S3. Take another piece of steel wire and connect it to the digital tension meter. Connect the other end of the steel wire to the wire locking column. S4. Rotate the wire locking crank to tighten the wire, and monitor the tension in real time through the digital tension meter until the preset value is reached and stop; S5. Adjust the horizontal position deviation of the steel wire by rotating the digital micrometer for horizontal adjustment, and adjust the vertical position deviation of the steel wire by rotating the digital micrometer for longitudinal adjustment.

[0013] Furthermore, the wire position adjustment accuracy is 0.001mm, and the tensioning force control accuracy is 0.004kg.

[0014] Furthermore, the wire position adjustment range is ±12.5mm up and down, ±5mm left and right, and the tension adjustment range is 0.004-40kg.

[0015] The technical solution of this invention uses two micrometers for precise positioning and adjustment, effectively controlling the vertical and horizontal position of the wire with an adjustment accuracy of 0.001mm. A digital tension gauge measures the wire tension in real time, ensuring precise control of the tension. This device can quickly and accurately adjust the wire position and tension, ensuring accurate installation of equipment and components. This wire tensioning positioner addresses existing issues such as difficult adjustment, large sag deviation, and easy displacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 Schematic diagram of the structure of an embodiment of the present invention; Figure 2 This is a schematic structural diagram of an adjuster support according to an embodiment of the present invention; Figure 3 This is a schematic structural diagram of a positioning wheel according to an embodiment of the present invention; Figure 4 This is a schematic structural diagram of a guide wheel according to an embodiment of the present invention; Figure 5 This is a schematic structural diagram of a sliding frame according to an embodiment of the present invention; Figure 6 This is a schematic structural diagram of a fixing pin according to an embodiment of the present invention; Figure 7 This is a schematic structural diagram of a wire locking column according to an embodiment of the present invention; In the figure, 1. adjuster support; 2. sliding frame; 3. positioning wheel; 4. positioning wheel fixing pin; 5. cotter pin; 6. lateral adjustment digital micrometer; 7. barrel; 8. first fixing pin; 9. first guide wheel; 10. second fixing pin; 11. second guide wheel; 12. wire locking column; 13. wire locking crank; 14. crank fixing pressure plate; 15. bolt; 16. steel wire; 17. digital tension meter. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting the present invention.

[0020] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0021] Example 1 like Figure 1-Figure 7 As shown, a wire tensioning positioner based on a central reference line positioning includes an adjuster support 1 and a sliding frame 2, wherein: The adjuster support 1 includes a vertical plate and a bottom plate, which are arranged vertically and fixed together. The vertical plate is made of a steel plate with a thickness of 30mm and a length and width of 200×200mm. The bottom plate is made of a steel plate with a thickness of 30mm and a length and width of 200×70mm. Three Ø22mm holes are drilled through the middle of the bottom plate, which can be fixed in a firm place with three M20 bolts or by welding. Three guide grooves are processed on the top of the vertical plate to cooperate with the sliding frame 2, and two M10 internal threads are drilled on the front of the vertical plate as bolt holes for installing the first fixing pin 8 and the second fixing pin 10. The first fixing pin 8 and the second fixing pin 10 are used to install the first guide wheel 9 and the second guide wheel 11 respectively. The first guide wheel 9 and the second guide wheel 11 ensure that the steel wire can rotate freely during the adjustment process.

[0022] A fixing seat for fixing the longitudinal adjustment digital micrometer 7 and the digital tension meter 17 is welded on the vertical plate. The specification of the digital tension meter 17 is 0-50kg. The digital tension meter 17 can measure the tension of the steel wire in real time with an accuracy of up to 0.004kg.

[0023] A Ø20mm through hole is drilled on the vertical plate for installing the wire locking column 12. The wire locking column 12 is made of Ø20mm round steel with an overall length of 60mm. A Ø4mm hole is drilled through the side of the Ø20mm cylinder for inserting the steel wire. An M4 internal thread bolt hole with a depth of 6mm is drilled at the end of the Ø6mm cylinder. After the gear is installed at the end, it is fastened with an M4 screw.

[0024] Six M4 internal threaded holes are drilled on the back of the vertical plate to hold the crank fixing plate 14. The length and width of the crank fixing plate 14 are 26×24mm, and the thickness is 3mm. The crank fixing plate 14 is fixed to the vertical plate by bolts 15. The wire locking crank 13 is connected to the gear, which can achieve precise control of the tension of the wire 16.

[0025] Slide frame 2 is made of 23mm thick steel plate, measuring 80×80mm in length and width. Three 40mm-long trapezoidal rails are machined into the sides of slide frame 2. Slide frame 2 can be mounted on adjuster support 1, with the three trapezoidal rails engaging the three guide grooves on the adjuster support 1. Three struts are machined into the upper portion of slide frame 2. Two of these struts have Ø10mm holes drilled in them for mounting the positioning wheel retaining pin 4. An M6 internally threaded bolt hole is drilled through the other strut for mounting the lateral adjustment digital micrometer 6. The lateral adjustment digital micrometer 6 has an adjustment range of 0–25mm with an accuracy of 0.001mm. The longitudinal adjustment digital micrometer 7 has an adjustment range of 0–25mm with an accuracy of 0.001mm.

[0026] The positioning wheel 3 is installed on the sliding frame 2 through the positioning wheel fixing pin 4. The specifications of the positioning wheel 3 are Ø50×20mm, and the dimensions of the positioning wheel fixing pin 4 are Ø10×70mm. A Ø3mm hole is drilled through the tail end of the positioning wheel fixing pin 4 for installing the cotter pin 5. An M4 internal thread bolt hole is drilled at the other end of the positioning wheel fixing pin 4 for connecting the lateral adjustment digital micrometer 6.

[0027] Two guide wheels are provided on the adjuster support 1, including a first guide wheel 9 and a second guide wheel 11. The specifications of the first guide wheel 9 and the second guide wheel 11 are both Ø50×20mm. The first guide wheel 9 and the second guide wheel 11 are respectively installed on the adjuster support 1 through the first fixing pin 8 and the second fixing pin 10 to ensure that the two guide wheels can rotate freely during the wire positioning process.

[0028] The first fixing pin 8 and the second fixing pin 10 are composed of an M10×25 full-thread bolt and an M6×30 half-thread bolt. The M10×25 full-thread bolt is made of Ø14mm round steel, the bolt head length is 15.15mm, and an M6 internal thread bolt hole with a hole depth of 9.5mm is drilled in the head, which is connected and fastened to the adjuster support 1; the M6×30 half-thread bolt has a thread length of 9.5mm, which is inserted into the guide wheel and connected and fastened with the full-thread bolt.

[0029] The assembly method of the wire tensioning positioner of the present invention comprises the following steps: Insert the positioning wheel fixing pin 4 into the first pillar on the sliding frame 2, insert the positioning wheel 3 into the positioning wheel fixing pin 4, then insert the positioning wheel fixing pin 4 into the second pillar, and insert the cotter pin 5 into the tail end of the positioning wheel fixing pin 4; Screw the lateral adjustment digital micrometer 6 into the third support on the sliding frame 2 and tighten it, then connect the positioning wheel fixing pin 4 to the lateral adjustment digital micrometer 6 and tighten it; Then, the slide frame 2 is inserted into the adjuster support 1, and the longitudinal adjustment digital micrometer 7 and the digital tension meter 17 are respectively installed on the adjuster support 1.

[0030] Install the fully threaded bolt of the first fixing pin 8 on the adjuster support 1, insert the half-threaded bolt of the first fixing pin 8 into the first guide wheel 9 and tighten it with the fully threaded bolt to ensure that the first guide wheel 9 can rotate freely after assembly. Install the second fixing pin 10 and the second guide wheel 11 in the same way.

[0031] Insert the wire locking column 12 into the adjuster support 1, install the gear and fastening screws on the back of the adjuster support 1, connect the wire locking crank 13 with the gear, and then install the crank fixing pressure plate 14 and bolts.

[0032] The method for using the wire tensioning positioner of the present invention comprises the following steps: Prepare two wire tensioning locators and fix them to the equipment installation location by welding or bolting; The steel wire 16 is passed through the positioning wheel 3, the first guide wheel 9 and the second guide wheel 11 in sequence, and then connected to the digital tension meter 17; Take another section of steel wire and connect it to the digital tension meter 17, and connect the other end of the steel wire to the steel wire locking column 12; Rotate the wire locking crank 13 and observe the value change of the digital tension meter 17 in real time until the displayed data reaches the preset wire tension and then stop.

[0033] Measure the deviation of the center position of the steel wire, adjust the left and right deviation of the steel wire by rotating the horizontal adjustment digital micrometer 6, and adjust the up and down deviation of the steel wire by rotating the longitudinal adjustment digital micrometer 7.

[0034] The present invention uses two micrometers for precise positioning adjustment, which can effectively control the vertical and horizontal positions of the steel wire, and the adjustment accuracy can reach 0.001mm; and uses a digital tension meter to measure the tension of the steel wire in real time, thereby ensuring accurate control of the tension.

[0035] The device of the present invention can quickly and accurately adjust the position and tension of the steel wire, ensuring the installation accuracy of equipment and components. It is a steel wire tensioning positioner and solves the problems of difficult adjustment, large sag deviation, and easy displacement in the prior art.

[0036] The device of the present invention has a wide range of tension adjustment with high precision, with an adjustment range of 0.004-40kg and an accuracy of 0.004kg. The wire position can be adjusted conveniently and accurately, with an upward and downward adjustment range of ±12.5mm and a left and right adjustment range of ±5mm, with an accuracy of 0.001mm. The wire tensioner can effectively prevent the wire from shifting, even if it is slightly touched during use. The wire tensioner is made of 304 stainless steel, which has good corrosion resistance and long-term performance. It has low processing and manufacturing costs and can be reused for a long time. It has a wide range of applications and can be used for the installation and measurement of internal components of equipment such as steam turbines and multi-tube bundle heaters.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A wire tensioning locator based on a central reference line, characterized in that: It includes an adjuster support, a sliding frame, a positioning wheel, a horizontal adjustment digital micrometer, a vertical adjustment digital micrometer and a digital tension meter. The sliding frame slides with the three guide grooves on the top of the adjuster support through three trapezoidal slide rails on the side; the positioning wheel is installed on the pillar on the upper part of the sliding frame through a positioning wheel fixing pin; the first guide wheel and the second guide wheel are rotatably installed on the adjuster support; the adjuster support is also rotatably connected to a wire locking column, and the end of the wire locking column is connected to a wire locking crank; the horizontal adjustment digital micrometer is installed on the sliding frame and connected to the positioning wheel fixing pin; the vertical adjustment digital micrometer and the digital tension meter are respectively fixed on the fixing seat on the adjuster support.

2. The wire tensioning positioner based on the center reference line positioning according to claim 1 is characterized in that: The adjuster support comprises a vertically fixedly connected upright plate and a bottom plate.

3. The wire tensioning positioner based on the center reference line positioning according to claim 1, characterized in that: The first guide wheel and the second guide wheel are respectively mounted on the front side of the adjuster support through a first fixing pin and a second fixing pin.

4. The wire tensioning positioner based on the center reference line positioning according to claim 1, characterized in that: The wire locking column passes through the adjuster support and is connected to the wire locking crank.

5. The wire tensioning positioner based on the center reference line positioning according to claim 1, characterized in that: Three pillars are provided on the upper portion of the sliding frame, wherein two of the pillars are mounted with the positioning wheel fixing pins, and the third pillar is mounted with the lateral adjustment digital micrometer.

6. The wire tensioning positioner based on the center reference line positioning according to claim 1, characterized in that: A wire through hole is provided on the side of the wire locking column, and an internal thread hole is provided on the end of the wire locking column and the gear is fixed by a screw.

7. The wire tensioning positioner based on the center reference line positioning according to claim 1, characterized in that: The digital display tension meter has a measuring range of 0-50kg and an accuracy of 0.004kg; the adjustment range of the horizontal and vertical digital display micrometers is 0-25mm and an accuracy of 0.001mm.

8. The method for using the wire tensioning positioner based on the center reference line positioning according to any one of claims 1 to 7, characterized in that: Including steps: S1. Prepare two steel wire tensioning positioners and fix them to the equipment installation position; S2. Pass the steel wire through the positioning wheels, the first guide wheel and the second guide wheel of the two steel wire tensioning positioners in sequence, and then connect them to the digital tension meter; S3. Take another piece of steel wire and connect it to the digital tension meter. Connect the other end of the steel wire to the wire locking column. S4. Rotate the wire locking crank to tighten the wire, and monitor the tension in real time through the digital tension meter until the preset value is reached and stop; S5. Adjust the horizontal position deviation of the steel wire by rotating the digital micrometer for horizontal adjustment, and adjust the vertical position deviation of the steel wire by rotating the digital micrometer for longitudinal adjustment.

9. The method for using the wire tensioning positioner based on the center reference line positioning according to claim 8, characterized in that: The wire position adjustment accuracy is 0.001mm and the tensioning force control accuracy is 0.004kg.

10. The method for using the wire tensioning positioner based on the center reference line positioning according to claim 8, characterized in that: The wire position adjustment range is ±12.5mm up and down, ±5mm left and right, and the tension adjustment range is 0.004-40kg.

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