CN219311762U - Pipe traction device - Google Patents

Abstract

The utility model relates to the technical field of pipe production, in particular to a pipe traction device, which comprises a fixed frame, a driving mechanism and two groups of traction dragging mechanisms, wherein the driving mechanism is arranged on the fixed frame, the two groups of traction dragging mechanisms are slidably and adjustably arranged on the fixed frame, a gap for a pipe wrapped with heat-insulating cotton to pass through is arranged between the two groups of traction dragging mechanisms, the output end of the driving mechanism is respectively connected with the two groups of traction dragging mechanisms, the driving mechanism is used for driving the two traction dragging mechanisms to synchronously operate, and the two traction dragging mechanisms are mutually matched for dragging the pipe; the synchronous belt outer surface on the traction dragging mechanism is a curved surface which is adaptive to the outer wall of the pipe, the heat-insulating cotton is attached to the outer surface of the synchronous belt, the heat-insulating cotton can be tightly pressed with the pipe, the pipe wrapped with the heat-insulating cotton can be clamped, the fixing effect and the traction effect of the pipe are improved, meanwhile, the wrapping state of the heat-insulating cotton and the pipe in the traction process is ensured, and the winding fixation of the follow-up heat-insulating cotton is facilitated.

Description

Pipe traction device

Technical Field

The utility model relates to the technical field of pipe production, in particular to a pipe traction device.

Background

RTP tubular product has wide application in industry fields such as feedwater, oil exploitation industry, for the construction installation of being convenient for, carry out continuous production to tubular product, in the tubular product production process, need pull to tubular product, in order to satisfy the environment transportation needs under the low temperature condition, it is cotton to wrap up the heat preservation at tubular product outer wall generally, and among the current draw gear, generally through driving two traction mechanism respectively, make two traction mechanism mutually support and realize the traction of tubular product, because two traction mechanism rotate asynchronism, tubular product traction stability is poor, tubular product traction in-process produces vibration wearing and tearing, need carry out synchronous adjustment to two traction mechanism, in order to improve synchronous traction's precision, troublesome operation and degree of difficulty are big, and can't compress tightly heat preservation cotton and tubular product, lead to the heat preservation cotton on tubular product surface to throw off.

The prior art discloses a tubular product tractor, be in including frame and setting two traction mechanism in the frame, two traction mechanism arranges from top to bottom, and is provided with the clearance that is used for holding tubular product in the middle, still including being used for driving two traction mechanism synchronous pivoted drive mechanism, drive mechanism include the driving piece and with two turn to the case that the driving piece transmission is connected, two turn to the case upper and lower arrange and respectively with corresponding traction mechanism connects, the driving piece is used for driving two turn to the case synchronous rotation in order to realize two traction mechanism's synchronous rotation, two traction mechanism mutually support and are used for drawing tubular product. In this scheme, can drive two traction mechanism synchronous rotation through the driving piece, realize the synchronous traction to tubular product, but the hold-in range of contact with tubular product is flat plate structure in the traction mechanism, is difficult to press from both sides tightly to tubular product, and is poor to the fixed effect of tubular product, can't compress tightly heat preservation cotton and tubular product simultaneously when especially drawing the tubular product that the parcel has heat preservation cotton, and heat preservation cotton easily breaks away from, influences the winding of follow-up heat preservation cotton and fixes.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, and provides a pipe traction device which can clamp a pipe wrapped with heat-insulating cotton, improve the fixing effect and traction effect of the pipe, ensure the wrapping state of the heat-insulating cotton and the pipe in the traction process, and is beneficial to the winding and fixing of the follow-up heat-insulating cotton.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the pipe traction device comprises a fixing frame, a driving mechanism and two groups of traction dragging mechanisms, wherein the driving mechanism is arranged on the fixing frame, the two groups of traction dragging mechanisms are slidably and adjustably arranged on the fixing frame, a gap for a pipe wrapped with heat-insulating cotton to pass through is formed between the two groups of traction dragging mechanisms, the output end of the driving mechanism is respectively connected with the two groups of traction dragging mechanisms, the driving mechanism is used for driving the two traction dragging mechanisms to synchronously operate, and the two traction dragging mechanisms are mutually matched for dragging the pipe; the traction dragging mechanism comprises a movable frame, a driving shaft, a driving wheel, a driven shaft and a synchronous belt wound on the driving wheel and the driven wheel, the movable frame is arranged on the fixed frame in a sliding manner, the output end of the driving mechanism is in transmission connection with the driving shaft, the driving shaft and the driven shaft are respectively in rotary connection with the movable frame, the driving shaft is fixedly connected with the driving wheel, the driven shaft is fixedly connected with the driven wheel, and the synchronous belt is tensioned between the driving wheel and the driven wheel; the outer surface of the synchronous belt is a curved surface which is adapted to the outer wall of the pipe.

When the pipe traction device is used, when the pipe wrapped with the heat preservation cotton is fed into a gap between the two groups of traction dragging mechanisms, the moving frame is adjusted in a sliding mode along the fixing frame so that two synchronous belts on the two groups of traction dragging mechanisms are close to each other to clamp the pipe, the outer surfaces of the synchronous belts are matched with the outer wall of the pipe, the pipe can be clamped, the fixing effect on the pipe is good, the driving mechanism drives the driving shaft to rotate, the driving wheel is driven to rotate, the driven wheel and the synchronous belts are further driven to move, the two synchronous belts are matched with the pipe to clamp the pipe and continuously drag the pipe, and meanwhile the heat preservation cotton and the pipe are compressed, so that the heat preservation cotton is prevented from being separated and affecting subsequent winding and fixing.

Further, the synchronous belt tensioning device further comprises a tensioning mechanism for tensioning the synchronous belt, and the tensioning mechanism is arranged between the driven shaft and the movable frame.

Further, the tensioning mechanism comprises an adjusting block and a connecting piece, the driven shaft is rotatably arranged on the adjusting block in a penetrating mode, one end of the connecting piece is rotatably connected with the side wall of the adjusting block, the other end of the connecting piece is in threaded connection with the side wall of the movable frame, and the adjusting block is in sliding connection with the movable frame.

Further, the device also comprises a pressing mechanism for pressing the synchronous belt and the pipe, wherein the pressing mechanism is arranged on the movable frame and is in contact with the inner surface of the part, close to the pipe, of the synchronous belt.

Further, the pressing mechanism comprises a plurality of pressing wheel shafts and pressing wheels, one ends of the pressing wheel shafts are rotatably arranged on the movable frame, the other ends of the pressing wheel shafts are fixedly connected with the pressing wheels, and the pressing wheels press the inner surface of the part, close to the pipe side, of the synchronous belt.

Further, the top of the movable frame is provided with a plurality of upright posts, and a plurality of cover plates are arranged on the top covers of the upright posts.

Further, the driving mechanism comprises a bottom plate, a motor, a speed reducer, a shaft coupler and a driving shaft, the bottom plate is fixedly connected with the fixing frame, the motor is installed on the bottom plate, the output end of the motor is connected with the input end of the speed reducer, the output shaft of the speed reducer is connected with one end of the driving shaft through the shaft coupler, two ends of the driving shaft are rotatably installed at two ends of the bottom plate, and the driving shaft is in transmission connection with the driving shaft through the transmission mechanism.

Further, the transmission mechanism comprises a first bevel gear, a second bevel gear, a supporting plate and a supporting plate, wherein the supporting plate is fixedly connected with the movable frame, the first bevel gear is rotatably installed on the supporting plate, the first bevel gear is connected with the driving shaft through a guide flat key, the supporting plate is fixedly connected with the supporting plate, the second bevel gear is rotatably installed on the supporting plate, the second bevel gear is meshed with the first bevel gear, and the second bevel gear is fixedly connected with the driving shaft.

Further, the device also comprises a clamping mechanism, wherein the clamping mechanism is arranged at the top of the fixed frame, the clamping mechanism is connected with the movable frame, and the clamping mechanism is used for adjusting the gap between the two groups of traction dragging mechanisms.

Further, the clamping mechanism comprises a hand wheel, an adjusting rod and two clamping nuts, wherein the two ends of the adjusting rod are respectively and rotatably installed at the top of the fixing frame, the hand wheel is connected with one end of the adjusting rod, the two ends of the adjusting rod are provided with a first screw rod and a second screw rod with opposite screw threads, the two clamping nuts are respectively connected with the first screw rod and the second screw rod, and the two clamping nuts are respectively and fixedly installed on two groups of movable frames of the traction dragging mechanism.

Compared with the background technology, the pipe traction device of the utility model has the following beneficial effects:

the pipe material wrapped with the heat-insulating cotton can be clamped, the fixing effect and the traction effect of the pipe material are improved, meanwhile, the wrapping state of the heat-insulating cotton and the pipe material in the traction process is ensured, and the winding and fixing of the follow-up heat-insulating cotton are facilitated.

Drawings

FIG. 1 is a perspective view of a pipe pulling apparatus according to an embodiment of the present utility model;

FIG. 2 is a perspective view of a traction drive mechanism according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of a traction mechanism according to an embodiment of the present utility model;

FIG. 4 is a schematic view of the installation of a tensioning mechanism in an embodiment of the present utility model;

FIG. 5 is a perspective view of a driving mechanism according to an embodiment of the present utility model;

FIG. 6 is a schematic diagram of a driving mechanism according to an embodiment of the present utility model;

FIG. 7 is a schematic diagram of a traction drive in accordance with an embodiment of the present utility model;

FIG. 8 is a schematic view of a pipe pulling apparatus according to an embodiment of the present utility model at a first view angle;

FIG. 9 is a schematic view of a pipe pulling apparatus according to an embodiment of the present utility model at a second view angle;

FIG. 10 is a perspective view of a clamping mechanism according to an embodiment of the present utility model;

FIG. 11 is a schematic view of the installation of a clamping mechanism in an embodiment of the utility model;

fig. 12 is a schematic structural view of a clamping mechanism according to an embodiment of the present utility model.

In the accompanying drawings: 1-a fixing frame; 11-a slide rail; 2-a driving mechanism; 21-a bottom plate; 22-motor; 23-speed reducer; a 24-coupling; 25-a drive shaft; 3-a transmission mechanism; 31-supporting plates; 32-supporting plates; 33-a first bevel gear; 34-a second bevel gear; 35-guiding a flat key; 4-traction dragging mechanism; 41-a mobile frame; 411-sliders; 42-driving shaft; 43-driving wheel; 44-driven shaft; 45-driven wheel; 46-a synchronous belt; 5-tensioning mechanism; 51-a regulating block; 52-connecting piece; 6-a compressing mechanism; 61-pressing wheel shafts; 62-pressing wheel; 7-a clamping mechanism; 71-a hand wheel; 72-adjusting the rod; 721-first screw; 722-a second screw; 73-clamping the nut; 74-locking plate; 75-locking lever; 76-locking a hand wheel; 8-stand columns; 9-cover plate.

Detailed Description

The utility model is further described below in connection with the following detailed description. Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to be limiting of the present patent; for the purpose of better illustrating embodiments of the utility model, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numbers in the drawings of embodiments of the utility model correspond to the same or similar components; in the description of the present utility model, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., based on the azimuth or positional relationship shown in the drawings, it is only for convenience of describing the present utility model and simplifying the description, but it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus terms describing the positional relationship in the drawings are merely illustrative and should not be construed as limitations of the present patent, and specific meanings of the terms described above may be understood by those skilled in the art according to specific circumstances.

Example 1

The pipe traction device comprises a fixed frame 1, a driving mechanism 2 and two groups of traction dragging mechanisms 4, wherein the driving mechanism 2 is arranged on the fixed frame 1, the two groups of traction dragging mechanisms 4 are slidably and adjustably arranged on the fixed frame 1, a gap for a pipe wrapped with heat-insulating cotton to pass through is arranged between the two groups of traction dragging mechanisms 4, the output end of the driving mechanism 2 is respectively connected with the two groups of traction dragging mechanisms 4, the driving mechanism 2 is used for driving the two traction dragging mechanisms 4 to synchronously operate, and the two traction dragging mechanisms 4 are mutually matched for dragging the pipe; the traction dragging mechanism 4 comprises a movable frame 41, a driving shaft 42, a driving wheel 43, a driven wheel 45, a driven wheel 44 and a synchronous belt 46 wound on the driving wheel 43 and the driven wheel 45, wherein the movable frame 41 is arranged on the fixed frame 1 in a sliding manner, the output end of the driving mechanism 2 is in transmission connection with the driving shaft 42, the driving shaft 42 and the driven shaft 44 are respectively in rotary connection with the movable frame 41, the driving shaft 42 is fixedly connected with the driving wheel 43, the driven shaft 44 is fixedly connected with the driven wheel 45, and the synchronous belt 46 is tensioned between the driving wheel 43 and the driven wheel 45; the outer surface of the synchronous belt 46 is a curved surface which is matched with the outer wall of the pipe.

When the pipe traction device is used, when the pipe wrapped with the heat preservation cotton is fed into the gap between the two groups of traction dragging mechanisms 4, the moving frame 41 is adjusted in a sliding mode along the fixing frame 1 so that the two synchronous belts 46 on the two groups of traction dragging mechanisms 4 are close to each other to clamp the pipe, the outer surfaces of the synchronous belts 46 are matched with the outer wall of the pipe, the pipe can be clamped, the fixing effect of the pipe is good, the driving mechanism 2 drives the driving shaft 42 to rotate, the driving wheel 43 is driven to rotate, the driven wheel 45 and the synchronous belts 46 move, the two synchronous belts 46 are matched to clamp the pipe and continuously drag the pipe, and meanwhile, the heat preservation cotton can be tightly pressed with the pipe by the outer surface of the synchronous belts 46 in a lamination mode, and the heat preservation cotton is prevented from being separated and affecting the follow-up winding and fixing.

As shown in fig. 4 and 8, the device further includes a tensioning mechanism 5 for tensioning the timing belt 46, and the tensioning mechanism 5 is provided between the driven shaft 44 and the movable frame 41. Specifically, the tensioning mechanism 5 includes an adjusting block 51 and a connecting piece 52, the driven shaft 44 is rotatably penetrating through the adjusting block 51, one end of the connecting piece 52 is rotatably connected with the side wall of the adjusting block 51, the other end of the connecting piece 52 is in threaded connection with the side wall of the moving frame 41, and the adjusting block 51 is slidably connected with the moving frame 41. In the implementation, the connecting piece 52 is rotated to adjust the connection position between the connecting piece 52 and the side wall of the movable frame 41, so that the adjusting block 51 and the movable frame 41 relatively move to drive the driven shaft 44 and the driven wheel 45 to change in position, thereby adjusting the tension of the synchronous belt 46.

As shown in fig. 3, the pressing mechanism 6 for pressing the timing belt 46 against the pipe is further included, the pressing mechanism 6 is mounted on the moving frame 41, and the pressing mechanism 6 is in contact with the inner surface of the portion of the timing belt 46 on the pipe side. Specifically, the pressing mechanism 6 includes a plurality of pressing wheel shafts 61 and pressing wheels 62, one ends of the pressing wheel shafts 61 are rotatably mounted on the movable frame 41, the other ends of the pressing wheel shafts 61 are fixedly connected with the pressing wheels 62, and the pressing wheels 62 press the inner surface of the portion of the synchronous belt 46 near the pipe side. In implementation, the pipe is clamped between the synchronous belts 46 of the two groups of traction and dragging mechanisms 4, when the driving mechanism 2 drives the driving shaft 42 and the driving wheel 43 to rotate, the driven wheel 45 and the synchronous belts 46 are driven to move, traction of the pipe is achieved through the synchronous belts 46, the inner surfaces of the parts, close to the pipe, of the synchronous belts 46 are in contact with the pinch rollers 62, the synchronous belts 46 can be further clung to the pipe through the pinch rollers 62, heat-insulating cotton and the pipe are kept in a compressed state, meanwhile, traction force of the traction and dragging mechanisms 4 is improved, slipping of the synchronous belts 46 relative to the pipe can be effectively prevented, and traction effect is improved.

As shown in fig. 1 to 4 and fig. 7 to 9, a plurality of columns 8 are arranged at the top of the movable frame 41, and a cover plate 9 is arranged on the top of each column 8. In the implementation, the two sets of traction dragging mechanisms 4 are arranged at the same horizontal height, the central axes of the driving shaft 42, the driven shaft 44 and the pinch roller shaft 61 are positioned in the vertical direction, the rotation axes of the driving wheel 43, the driven wheel 45 and the pinch roller 62 are positioned in the vertical direction, and impurities such as dust can be prevented from entering the traction dragging mechanism 4 through the arranged cover plate 9 to influence the operation of the traction dragging mechanism 4.

Example two

The present embodiment is similar to the embodiment, except that, as shown in fig. 1 and 5 to 7, the driving mechanism 2 includes a base plate 21, a motor 22, a speed reducer 23, a coupling 24 and a driving shaft 25, the base plate 21 is fixedly connected with the fixing frame 1, the motor 22 is installed on the base plate 21, an output end of the motor 22 is connected with an input end of the speed reducer 23, an output shaft of the speed reducer 23 is connected with one end of the driving shaft 25 through the coupling 24, two ends of the driving shaft 25 are rotatably installed at two ends of the base plate 21, and the driving shaft 25 is in transmission connection with the driving shaft 42 through the transmission mechanism 3. In the implementation, as the two ends of the driving shaft 25 are rotatably mounted on the bottom plate 21, when the motor 22 runs, the driving shaft 25 can be driven to rotate in situ through the speed reducer 23 and the coupler 24, and then the driving shaft 25 drives the two driving shafts 42 to rotate through the transmission mechanism 3, so that the two synchronous belts 46 run synchronously to pull the pipe.

As shown in fig. 2, 4, 7 and 9, the transmission mechanism 3 includes a first bevel gear 33, a second bevel gear 34, a supporting plate 31 and a supporting plate 32, the supporting plate 31 is fixedly connected with the moving frame 41, the first bevel gear 33 is rotatably mounted on the supporting plate 31, the first bevel gear 33 is connected with the driving shaft 25 through a guiding flat key 35, the supporting plate 32 is fixedly connected with the supporting plate 31, the second bevel gear 34 is rotatably mounted on the supporting plate 32, the second bevel gear 34 is meshed with the first bevel gear 33, and the second bevel gear 34 is fixedly connected with the driving shaft 42. In practice, the moving frame 41 is slidably and adjustably disposed on the fixed frame 1, and when the moving frame 41 is adjusted, the driving shaft 42, the second bevel gear 34, the support plate 32, the support plate 31 and the first bevel gear 33 thereon are driven to move, and since the first bevel gear 33 is connected with the driving shaft 25 through the guide flat key 35, the first bevel gear 33 can slide along the guide flat key 35, so that the first bevel gear 33 can move along the axial direction of the driving shaft 42, and the first bevel gear 33 can keep coaxial rotation with the driving shaft 42.

Example III

The difference between this embodiment and the second embodiment is that, as shown in fig. 1, 8 and 9, a clamping mechanism 7 is further included, the clamping mechanism 7 is mounted on the top of the fixing frame 1, the clamping mechanism 7 is connected with the moving frame 41, and the clamping mechanism 7 is used for adjusting the gap between the two sets of traction dragging mechanisms 4. Before the pipe enters the gap between the two groups of traction dragging mechanisms 4, the clamping mechanism 7 is used for adjusting the two groups of traction dragging mechanisms 4 to move in the direction away from each other, so that the pipe can smoothly enter the gap between the two groups of traction dragging mechanisms 4, and then the clamping mechanism 7 is used for adjusting the two groups of traction dragging mechanisms 4 to move in the direction close to each other, so that the parts of the two synchronous belts 46 close to each other are matched to clamp the pipe.

As shown in fig. 1, 8 to 12, the clamping mechanism 7 includes a hand wheel 71, an adjusting rod 72 and two clamping nuts 73, two ends of the adjusting rod 72 are respectively rotatably mounted on the top of the fixing frame 1, the hand wheel 71 is connected with one end of the adjusting rod 72, two ends of the adjusting rod 72 are provided with a first screw 721 and a second screw 722 with opposite screw threads, the two clamping nuts 73 are respectively connected with the first screw 721 and the second screw 722, and the two clamping nuts 73 are respectively fixedly mounted on the moving frames 41 of the two sets of traction dragging mechanisms 4. Specifically, the top of the fixing frame 1 is provided with a sliding rail 11, the bottom of the moving frame 41 is provided with a sliding block 411, the sliding block 411 is slidably connected with the sliding rail 11, when the gap between the two groups of traction dragging mechanisms 4 is adjusted, the hand wheel 71 is rotated to drive the adjusting rod 72 and the first screw 721 and the second screw 722 thereon to rotate, so that the two clamping nuts 73 move in the directions away from or approaching each other, and further the moving frame 41 is driven to move in the directions away from or approaching each other, so that the gap between the two synchronous belts 46 is increased to allow the pipe to pass through or reduce the gap between the two synchronous belts 46 to clamp the pipe.

As shown in fig. 8 to 12, a locking mechanism is arranged at the top of the fixing frame 1, the locking mechanism comprises a locking plate 74, a locking rod 75 and a locking hand wheel 76, the locking plate 74 is fixedly arranged at the top of the fixing frame 1, a through hole and a locking groove are formed in the locking plate 74, one end of the adjusting rod 72 penetrates through the through hole, the locking groove is communicated with the through hole, a first clamping block and a second clamping block are respectively formed on two sides of the locking groove by the locking plate 74, one end of the locking rod 75 is rotatably arranged on the first clamping block in a penetrating mode and is connected with the locking hand wheel 76, and the other end of the locking rod 75 is in threaded connection with the second clamping block. When the hand wheel 71 is rotated to rotate the adjusting rod 72, after the position adjustment of the traction dragging mechanism 4 is completed, the locking hand wheel 76 is screwed to enable the first clamping block and the second clamping block to be close to each other, the through hole compresses the adjusting rod 72, and the position of the traction dragging mechanism 4 is prevented from being influenced by the rotation of the adjusting rod 72.

In the specific content of the above embodiment, any combination of the technical features may be performed without contradiction, and for brevity of description, all possible combinations of the technical features are not described, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

It is to be understood that the above examples of the present utility model are provided by way of illustration only and not by way of limitation of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. The utility model provides a tubular product draw gear, includes mount (1), actuating mechanism (2) and two sets of traction drive mechanism (4), actuating mechanism (2) install in mount (1), two sets of traction drive mechanism (4) slip adjustably set up in mount (1), and two sets of traction drive mechanism (4) are equipped with the clearance that can supply the tubular product of parcel to have thermal insulation cotton to pass through between, the output of actuating mechanism (2) is connected with two sets of traction drive mechanism (4) respectively, actuating mechanism (2) are used for driving two traction drive mechanism (4) synchronous operation, two traction drive mechanism (4) mutually support and are used for traction tubular product; the traction dragging mechanism (4) comprises a movable frame (41), a driving shaft (42), a driving wheel (43), a driven wheel (45), a driven shaft (44) and a synchronous belt (46) wound on the driving wheel (43) and the driven wheel (45), the movable frame (41) is slidably arranged on the fixed frame (1), the output end of the driving mechanism (2) is in transmission connection with the driving shaft (42), the driving shaft (42) and the driven shaft (44) are respectively in rotary connection with the movable frame (41), the driving shaft (42) is fixedly connected with the driving wheel (43), the driven shaft (44) is fixedly connected with the driven wheel (45), and the synchronous belt (46) is tensioned between the driving wheel (43) and the driven wheel (45). The synchronous belt (46) is characterized in that the outer surface of the synchronous belt is a curved surface which is matched with the outer wall of the pipe.

2. Pipe towing installation according to claim 1, further comprising a tensioning mechanism (5) for tensioning the timing belt (46), the tensioning mechanism (5) being arranged between the driven shaft (44) and the moving frame (41).

3. Pipe towing means according to claim 2, characterized in that the tensioning means (5) comprises an adjusting block (51) and a connecting piece (52), the driven shaft (44) is rotatably arranged through the adjusting block (51), one end of the connecting piece (52) is rotatably connected with the side wall of the adjusting block (51), the other end of the connecting piece (52) is in threaded connection with the side wall of the movable frame (41), and the adjusting block (51) is slidably connected with the movable frame (41).

4. Pipe pulling device according to claim 1, further comprising a hold-down mechanism (6) for holding down a timing belt (46) with a pipe, the hold-down mechanism (6) being mounted to the moving frame (41) and the hold-down mechanism (6) being in contact with an inner surface of a portion of the timing belt (46) on the pipe side.

5. The pipe traction device according to claim 4, wherein the pressing mechanism (6) comprises a plurality of pressing wheel shafts (61) and pressing wheels (62), one ends of the pressing wheel shafts (61) are rotatably mounted on the movable frame (41), the other ends of the pressing wheel shafts (61) are fixedly connected with the pressing wheels (62), and the pressing wheels (62) press the inner surface of a portion of the synchronous belt (46) near the pipe side.

6. Pipe towing installation according to claim 1, characterized in that the top of the moving rack (41) is provided with a number of uprights (8), the top covers of which uprights (8) are provided with cover plates (9).

7. The pipe traction device according to claim 1, wherein the driving mechanism (2) comprises a bottom plate (21), a motor (22), a speed reducer (23), a coupler (24) and a driving shaft (25), the bottom plate (21) is fixedly connected with the fixing frame (1), the motor (22) is arranged on the bottom plate (21), the output end of the motor (22) is connected with the input end of the speed reducer (23), the output shaft of the speed reducer (23) is connected with one end of the driving shaft (25) through the coupler (24), two ends of the driving shaft (25) are rotatably arranged at two ends of the bottom plate (21), and the driving shaft (25) is in transmission connection with the driving shaft (42) through the transmission mechanism (3).

8. The pipe traction device according to claim 7, wherein the transmission mechanism (3) comprises a first bevel gear (33), a second bevel gear (34), a supporting plate (31) and a supporting plate (32), the supporting plate (31) is fixedly connected with the movable frame (41), the first bevel gear (33) is rotatably mounted on the supporting plate (31), the first bevel gear (33) is connected with the driving shaft (25) through a guide flat key (35), the supporting plate (32) is fixedly connected with the supporting plate (31), the second bevel gear (34) is rotatably mounted on the supporting plate (32), the second bevel gear (34) is meshed with the first bevel gear (33), and the second bevel gear (34) is fixedly connected with the driving shaft (42).

9. Pipe towing installation according to any one of claims 1 to 8, further comprising a clamping mechanism (7), said clamping mechanism (7) being mounted on top of the stationary frame (1), said clamping mechanism (7) being connected to the mobile frame (41), said clamping mechanism (7) being adapted to adjust the gap between two sets of said towing traction mechanisms (4).

10. The pipe traction device according to claim 9, wherein the clamping mechanism (7) comprises a hand wheel (71), an adjusting rod (72) and two clamping nuts (73), two ends of the adjusting rod (72) are respectively rotatably mounted at the top of the fixing frame (1), the hand wheel (71) is connected with one end of the adjusting rod (72), two ends of the adjusting rod (72) are provided with a first screw (721) and a second screw (722) with opposite screw threads, the two clamping nuts (73) are respectively connected with the first screw (721) and the second screw (722), and the two clamping nuts (73) are respectively fixedly mounted on moving frames (41) of the two groups of traction dragging mechanisms (4).

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