Transformer connecting pipe clamping device and method thereof

Abstract

The invention relates to the technical field of large power transformer machining, in particular to a transformer connecting pipe clamping device and a method thereof.The clamping device comprises a support, a connecting pipe body, a piston rod, a driving assembly, a pressing wheel, a connecting assembly, a positioning wheel, a V-shaped groove and an adjusting assembly; a connecting pipe body is arranged above the support, a piston rod is arranged on one side of the support, a driving assembly is arranged at one end of the piston rod, a pressing wheel is arranged at one end of the piston rod, the pressing wheel is made of rubber and arranged on the outer side of the connecting pipe body, a connecting assembly is arranged on the outer side of the pressing wheel, and a positioning wheel is arranged on one side of the support. The positioning wheel is arranged on the outer side of the connecting pipe body, and a V-shaped groove is formed in one side of the positioning wheel; by means of a rapid clamping and positioning mode, it is ensured that one person can complete clamping, polishing and cleaning work of a connecting pipe, the labor intensity is effectively reduced, the working efficiency is improved, the operation safety is guaranteed, and therefore the practical value of the device is effectively increased.

Description

Technical Field

[0001] The invention relates to the technical field of large-scale power transformer processing, and in particular to a transformer coupling clamping device and a method thereof. Background Art

[0002] There are a large number of connecting pipes on oil-immersed transformer equipment, which serve as passages for oil or gas. Generally, the connecting pipes have flanges at both ends, which are welded to the seamless steel pipe in the middle (with various specifications). The flanges at both ends of the connecting pipes are fully welded to the inner and outer walls of the steel pipe. In order to ensure that the inner wall of the pipe is flat and clean, the internal welds need to be polished and the welding spatter cleaned after welding.

[0003] Grinding and cleaning the internal weld of the joint pipe requires two people to complete the task. Usually the joint pipe is long, up to several meters long. One person is responsible for lifting one end of the joint pipe to a certain height above the ground and holding it tightly, so that the other person can hold the grinding tool for grinding. During the operation, there is a safety risk of the tool installed on the grinding tool breaking, the labor intensity is high, and the operation efficiency is low.

[0004] Therefore, in view of the fact that the existing transformer coupling pipe processing operations are inconvenient to operate, have high labor intensity and low operating efficiency, a transformer coupling pipe clamping device and method can be designed. Through the method of rapid clamping and positioning, it can be ensured that one person can complete the coupling pipe clamping and grinding and cleaning work, effectively reducing labor intensity, improving work efficiency, ensuring the safety of operation, thereby effectively enhancing the practical value of the device. Summary of the invention

[0005] In order to overcome the problem that most transformer joint pipe processing operations require two people to complete, there is a safety risk of the tool installed on the grinding tool breaking during the operation, the labor intensity is high, and the operation efficiency is low.

[0006] The technical solution of the present invention is:

[0007] A first aspect of the present invention provides a transformer coupling clamping device, comprising a bracket, a coupling body, a piston rod, a driving assembly, a clamping wheel, a connecting assembly, a positioning wheel, a V-groove and an adjusting assembly; a coupling body is arranged above the bracket, a piston rod is arranged on one side of the bracket, a driving assembly is arranged on one end of the piston rod, a clamping wheel is arranged on one end of the piston rod, the clamping wheel is made of rubber, the clamping wheel is arranged on the outside of the coupling body, a connecting assembly is arranged on the outside of the clamping wheel, a positioning wheel is arranged on one side of the bracket, the positioning wheel and the bracket are rotatably connected to each other, the positioning wheel and the clamping wheel are symmetrically positioned, the positioning wheel is arranged on the outside of the coupling body, a V-groove is provided on one side of the positioning wheel, and an adjusting assembly is provided on one side of the positioning wheel.

[0008] Preferably, a bracket is provided to fix the position of the positioning wheel, the coupling body is placed in the V-groove of the positioning wheel, coupling bodies of various specifications are placed through the positioning wheel, the driving assembly is used to drive the piston rod to extend and retract, the clamping wheel is connected and fixed through the connecting assembly, the piston rod is retracted to adjust the position of the clamping wheel, the clamping force is adjusted by the clamping wheel, so that the clamping wheel and the positioning wheel clamp and fix the coupling body, and the positioning wheel angle is adjusted by the adjusting assembly, thereby driving the clamping wheel to rotate synchronously, so that the grinding end of the coupling body is tilted upward at a certain angle to facilitate grinding, thereby ensuring that one person can complete the coupling clamping and grinding and cleaning work, effectively reducing labor intensity, improving work efficiency, and ensuring the safety of operation.

[0009] Preferably, the drive assembly includes a cylinder, a fixing bolt and a control valve; the cylinder is arranged on one side of the bracket, the fixing bolt is arranged on the other side of the bracket, the control valve is arranged on one side of the bracket, and the piston rod is arranged on one side of the cylinder.

[0010] Preferably, two groups of fixing bolts are symmetrically arranged, the other ends of the fixing bolts are threadedly connected to the cylinder, and the control valve and the cylinder are electrically connected to each other.

[0011] Preferably, the connecting assembly includes a fixing frame and a first rotating shaft; the fixing frame is arranged at one end of the piston rod, the first rotating shaft is arranged at the inner side of the pressure wheel, and the first rotating shaft is rotatably connected to the fixing frame.

[0012] Preferably, the adjustment assembly includes an adjusting nut, a fixing plate and a second rotating shaft; an adjusting nut is provided on one side of the bracket, a fixing plate is provided on the upper surface of the bracket, a second rotating shaft is provided on one side of the fixing plate, and the second rotating shaft is provided at one end of the positioning wheel.

[0013] Preferably, the adjustment assembly includes an adjustment bolt and a clamping plate; the adjustment bolt is arranged on one side of the fixing plate, and the clamping plate is arranged on one end of the adjustment bolt.

[0014] Preferably, the adjusting nut and the positioning wheel are rotatably connected to each other, the second rotating shaft and the fixing plate are rotatably connected to each other, two groups of adjusting bolts are symmetrically arranged, and the adjusting bolts and the clamping plate are rotatably connected to each other.

[0015] A second aspect of the present invention provides a transformer coupling clamping method, comprising the clamping device as described above, by which the coupling is clamped and polished.

[0016] Beneficial effects of the present invention:

[0017] 1. When clamping the coupling body, the position of the positioning wheel is fixed by setting a bracket, and the coupling body is placed in the V-shaped groove of the positioning wheel. The coupling bodies of various specifications can be placed by adapting the positioning wheel. The position of the clamping wheel is adjusted by telescopic piston rod. The clamping force is adjusted by the clamping wheel so that the clamping wheel and the positioning wheel clamp and fix the coupling body. The positioning wheel is rotated to adjust the placement angle of the coupling body, thereby driving the clamping wheel to rotate synchronously, so that the grinding end of the coupling body is tilted upward at a certain angle for easy grinding. This solves the safety risk of the tool installed on the grinding tool being broken during most transformer coupling processing operations, the labor intensity is high, and the operation efficiency is low, thereby improving the convenience of processing operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 What is shown is a three-dimensional structural schematic diagram of a transformer coupling clamping device and method thereof of the present invention;

[0019] Figure 2 Shown is a schematic diagram of a three-dimensional structure of a bracket of a transformer coupling clamping device and method thereof of the present invention;

[0020] Figure 3 Shown is a three-dimensional structural schematic diagram of a driving assembly of a transformer coupling clamping device and method thereof of the present invention;

[0021] Figure 4 What is shown is a three-dimensional structural schematic diagram of an adjustment component of a transformer coupling clamping device and method thereof according to the present invention.

[0022] Explanation of the reference numerals: 1. bracket; 2. connecting pipe body; 3. piston rod; 301. cylinder; 302. fixing bolt; 303. control valve; 4. clamping wheel; 401. fixing frame; 402. first rotating shaft; 5. positioning wheel; 501. V-groove; 502. adjusting nut; 503. fixing plate; 504. second rotating shaft; 505. adjusting bolt; 506. clamping plate. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0024] See also Figure 1-Figure 4The present invention provides an embodiment: a transformer coupling clamping device, comprising a bracket 1, a coupling body 2, a piston rod 3, a driving assembly, a clamping wheel 4, a connecting assembly, a positioning wheel 5, a V-shaped groove 501 and an adjusting assembly; the coupling body 2 is arranged above the bracket 1, a piston rod 3 is arranged on one side of the bracket 1, a driving assembly is arranged on one end of the piston rod 3, a clamping wheel 4 is arranged on one end of the piston rod 3, the clamping wheel 4 is made of rubber, the clamping wheel 4 is arranged on the outside of the coupling body 2, a connecting assembly is arranged on the outside of the clamping wheel 4, a positioning wheel 5 is arranged on one side of the bracket 1, the positioning wheel 5 and the bracket 1 are rotatably connected to each other, the positioning wheel 5 and the clamping wheel 4 are symmetrical in position, the positioning wheel 5 is arranged on the outside of the coupling body 2, a V-shaped groove 501 is opened on one side of the positioning wheel 5, and an adjusting assembly is arranged on one side of the positioning wheel 5.

[0025] See also Figure 2-Figure 4 In this embodiment, the driving assembly includes a cylinder 301, a fixing bolt 302 and a control valve 303; the cylinder 301 is arranged on one side of the bracket 1, and the fixing bolt 302 is arranged on the other side of the bracket 1. Two groups of fixing bolts 302 are symmetrically arranged, and the other end of the fixing bolt 302 is threadedly connected with the cylinder 301. A control valve 303 is arranged on one side of the bracket 1, and the piston rod 3 is arranged on one side of the cylinder 301. The control valve 303 and the cylinder 301 are electrically connected to each other. The operation of the cylinder 301 is flexibly controlled by the control valve 303, and the piston rod 3 is controlled to move up and down by the cylinder 301. The fixing bolt 302 fixes the position of the cylinder 301, and stably fixes the cylinder 301 to one side of the bracket 1; the connecting assembly includes a fixing frame 401 and a first rotating shaft 402; a fixing frame 401 is provided at one end of the piston rod 3, and a first rotating shaft 402 is provided on the inner side of the clamping wheel 4, and the first rotating shaft 402 is rotatably connected to the fixing frame 401, and the first rotating shaft 402 is rotatably connected to the fixing frame 401, and the first rotating shaft 402 is rotated to drive the clamping wheel 4 to rotate synchronously, so that the piston rod 3 moves up and down to drive the height of the clamping wheel 4 to be adjusted synchronously, thereby achieving the effect of flexibly adjusting the clamping force of the clamping wheel 4 and the positioning wheel 5;

[0026] The adjustment assembly includes an adjustment nut 502, a fixing plate 503, a second rotating shaft 504, an adjustment bolt 505 and a clamping plate 506; an adjustment nut 502 is provided on one side of the bracket 1, and the adjustment nut 502 is rotatably connected with the positioning wheel 5, a fixing plate 503 is provided on the upper surface of the bracket 1, a second rotating shaft 504 is provided on one side of the fixing plate 503, and the second rotating shaft 504 is rotatably connected with the fixing plate 503, the second rotating shaft 504 is provided at one end of the positioning wheel 5, an adjustment bolt 505 is provided on one side of the fixing plate 503, and the adjustment bolt 505 is symmetrically provided Two groups, one end of the adjusting bolt 505 is provided with a clamping plate 506, the adjusting bolt 505 and the clamping plate 506 are rotatably connected to each other, the angle of the positioning wheel 5 is adjusted by rotating the adjusting nut 502, and the second rotating shaft 504 is rotatably connected by the fixing plate 503. The angle of the positioning wheel 5 is adjusted to drive the second rotating shaft 504 to rotate synchronously, so as to adjust the connecting pipe body 2 in the V-groove 501 to a suitable inclination angle, and then, the adjusting bolt 505 is rotated to adjust the position of the clamping plate 506, so that the two groups of clamping plates 506 clamp and fix the positioning wheel 5 to prevent the positioning wheel 5 from sliding and offsetting during processing.

[0027] When clamping the coupling body 2, the cylinder 301 is fixed to one side of the bracket 1 by the fixing bolt 302, the coupling body 2 is placed in the V-shaped groove 501, and the cylinder 301 is controlled by the control valve 303 to drive the piston rod 3 to move downward, so that the clamping wheel 4 on the fixing frame 401 presses the coupling body 2, and the clamping wheel 4 and the positioning wheel 5 clamp the coupling body 2;

[0028] When adjusting the placement angle of the coupling body 2, the positioning wheel 5 is controlled to rotate by adjusting the nut 502, so that the second rotating shaft 504 rotates around the fixed plate 503, thereby driving the coupling body 2 to tilt, and driving the clamping wheel 4 to rotate around the first rotating shaft 402, so that the clamping wheel 4 rotates synchronously with the tilt of the coupling body 2. After the coupling body 2 is adjusted to a suitable tilt angle, the adjusting bolt 505 is rotated to adjust the height of the clamping plate 506, so that the clamping plate 506 clamps and fixes the positioning wheel 5, and the angle of the coupling body 2 is locked and fixed for grinding operation.

[0029] Through the above steps, the position of the positioning wheel 5 is fixed by setting the bracket 1, the connecting pipe body 2 is placed in the V-groove 501 of the positioning wheel 5, and the connecting pipe bodies 2 of various specifications are placed by the positioning wheel 5. The driving component is used to drive the piston rod 3 to extend and retract, and the clamping wheel 4 is connected and fixed by the connecting component. The retractable piston rod 3 adjusts the position of the clamping wheel 4, and the clamping force is adjusted by the clamping wheel 4, so that the clamping wheel 4 and the positioning wheel 5 clamp and fix the connecting pipe body 2, and the angle of the positioning wheel 5 is adjusted by the adjusting component, thereby driving the clamping wheel 4 to rotate synchronously, so that the grinding end of the connecting pipe body 2 is tilted upward at a certain angle, which is convenient for grinding, thereby ensuring that one person can complete the clamping and grinding and cleaning of the connecting pipe, effectively reducing labor intensity and improving work efficiency.

[0030] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the spirit of the present invention.

Claims

1. A transformer coupling clamping device, comprising a bracket (1) and a coupling body (2); characterized in that: It also comprises a piston rod (3), a driving assembly, a clamping wheel (4), a connecting assembly, a positioning wheel (5), a V-shaped groove (501) and an adjusting assembly; a coupling tube body (2) is arranged above the bracket (1); a piston rod (3) is arranged on one side of the bracket (1); a driving assembly is arranged on one end of the piston rod (3); a clamping wheel (4) is arranged on one end of the piston rod (3); the clamping wheel (4) is made of rubber material; the clamping wheel (4) is arranged on the outer side of the coupling tube body (2); a connecting assembly is arranged on the outer side of the clamping wheel (4); a positioning wheel (5) is arranged on one side of the bracket (1); the positioning wheel (5) and the bracket (1) are rotatably connected to each other; the positioning wheel (5) and the clamping wheel (4) are symmetrically positioned; the positioning wheel (5) is arranged on the outer side of the coupling tube body (2); a V-shaped groove (501) is opened on one side of the positioning wheel (5); and an adjusting assembly is arranged on one side of the positioning wheel (5).

2. A transformer coupling clamping device according to claim 1, characterized in that: The driving assembly comprises a cylinder (301), a fixing bolt (302) and a control valve (303); the cylinder (301) is arranged on one side of the bracket (1), the fixing bolt (302) is arranged on the other side of the bracket (1), the control valve (303) is arranged on one side of the bracket (1), and the piston rod (3) is arranged on one side of the cylinder (301).

3. A transformer coupling clamping device according to claim 2, characterized in that: Two groups of fixing bolts (302) are symmetrically arranged, the other ends of the fixing bolts (302) are threadedly connected to the cylinder (301), and the control valve (303) and the cylinder (301) are electrically connected to each other.

4. A transformer coupling clamping device according to claim 2, characterized in that: The connection assembly comprises a fixing frame (401) and a first rotating shaft (402); one end of the piston rod (3) is provided with the fixing frame (401), the inner side of the pressure wheel (4) is provided with the first rotating shaft (402), and the first rotating shaft (402) and the fixing frame (401) are rotatably connected to each other.

5. The transformer coupling clamping device according to claim 2, characterized in that: The adjustment assembly comprises an adjustment nut (502), a fixing plate (503) and a second rotating shaft (504); the adjustment nut (502) is arranged on one side of the bracket (1), the fixing plate (503) is arranged on the upper surface of the bracket (1), the second rotating shaft (504) is arranged on one side of the fixing plate (503), and the second rotating shaft (504) is arranged at one end of the positioning wheel (5).

6. A transformer coupling clamping device according to claim 5, characterized in that: The adjustment assembly comprises an adjustment bolt (505) and a clamping plate (506); the adjustment bolt (505) is arranged on one side of the fixing plate (503), and the clamping plate (506) is arranged on one end of the adjustment bolt (505).

7. A transformer coupling clamping device according to claim 6, characterized in that: The adjusting nut (502) and the positioning wheel (5) are rotatably connected to each other, the second rotating shaft (504) and the fixing plate (503) are rotatably connected to each other, two groups of adjusting bolts (505) are symmetrically arranged, and the adjusting bolts (505) and the clamping plate (506) are rotatably connected to each other.

8. A transformer coupling clamping method, characterized in that: Including the clamping device as described in claims 1-7, the method also includes fixing the position of the positioning wheel by a bracket, placing the connecting pipe body in the V-groove of the positioning wheel, placing connecting pipe bodies of various specifications by adapting the positioning wheel, adjusting the position of the clamping wheel by a telescopic piston rod, adjusting the clamping force by using the clamping wheel so that the clamping wheel and the positioning wheel clamp and fix the connecting pipe body, rotating the positioning wheel to adjust the placement angle of the connecting pipe body, thereby driving the clamping wheel to rotate synchronously, so that the grinding end of the connecting pipe body is tilted upward at a certain angle to facilitate grinding.

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