CN114875793B

CN114875793B - Movable prestress tensioning auxiliary device

Info

Publication number: CN114875793B
Application number: CN202210591867.3A
Authority: CN
Inventors: 赵福光; 李颖; 唐兆为; 陈迪; 孙黄为; 陈瑶
Original assignee: Yin Guang Sha Group Co ltd
Current assignee: Yin Guang Sha Group Co ltd
Priority date: 2022-05-28
Filing date: 2022-05-28
Publication date: 2023-05-19
Anticipated expiration: 2042-05-28
Also published as: CN114875793A

Abstract

The application discloses a portable prestressing force stretch-draw auxiliary device. The device comprises a main body, a lifting platform, a tensioning jack, a guide assembly, a traction assembly and a driving assembly, wherein the lifting platform is arranged on the main body; the guide assembly and the traction assembly are both arranged on the main body, the guide assembly comprises an electromagnetic chuck, the electromagnetic chuck can penetrate through the clamping hole, the traction assembly comprises a traction wheel and a traction rope, the traction wheel is rotationally connected with the main body, and two ends of the traction rope are respectively connected with the traction wheel and the electromagnetic chuck; still rotate in the main part and be connected with total round and gyro wheel, total round is used for driving traction wheel and gyro wheel rotation, and the gyro wheel is used for driving the main part and removes, and drive assembly includes motor, lifter and DC power supply, and the motor is used for driving total round, and the lifter is used for driving the elevating platform, and DC power supply is used for driving electromagnetic chuck. The method has the effect of reducing operation difficulty and labor cost during tensioning operation.

Description

Movable prestress tensioning auxiliary device

Technical Field

The invention relates to the field of bridge construction, in particular to a movable prestress tensioning auxiliary device.

Background

The prestress tensioning is an indispensable key link in bridge construction, the steel stranded wires are arranged in the bridge in a penetrating mode, and tension jacks are used for simultaneously applying tension to the two ends of the steel stranded wires, so that the steel stranded wires generate symmetrical elastic deformation in advance, and the bridge is helped to have stronger load bearing capacity and longer service life in use after construction.

At present, for a series of construction links developed by prestress tensioning, firstly, anchor clamping pieces and limiting blocks are needed to sequentially penetrate through the ends of a plurality of steel strands, the anchor clamping pieces are used for enabling the steel strands to keep tensile deformation and not retract, the limiting blocks are used for keeping the distance between a tensioning jack and concrete to avoid collision, then the most important tensioning link can be performed, and constructors are needed to penetrate the ends of the steel strands into the tensioning jack and then fix and stretch the steel strands.

The constructor usually uses the movable lifting trolley to carry out auxiliary tensioning operation, firstly puts the jack on the lifting seat of the trolley, then moves the trolley to the vicinity of the steel strand to be tensioned, lifts the lifting seat to enable the jack to be close to the steel strand, and because the steel strand is made of flexible materials, the end head can droops downwards under the action of gravity, so that a cushion block is additionally arranged on the bottom surface of the tensioning jack, a clamping opening of the tensioning jack is inclined upwards, and then when the tensioning operation is carried out, at least one person is required to gather a plurality of steel strands together, one person supports the steel strand upwards, and one person pushes the trolley to slowly move forwards until the steel strand is fully penetrated into the clamping hole of the tensioning jack.

All links during the existing tensioning operation need manual operation, especially when the tensioning operation is performed in an inner box of a cast-in-situ box girder of a bridge, because of narrow space, constructors are difficult to stand for operation, and the tensioning jack is very heavy up to hundreds of jin, so that the construction difficulty is higher.

Disclosure of Invention

In order to reduce operation difficulty and labor cost during tensioning operation, the application provides a movable prestress tensioning auxiliary device.

The application provides a portable prestressing force stretch-draw auxiliary device adopts following technical scheme:

the movable prestress tensioning auxiliary device comprises a main body, a lifting table, a tensioning jack, a guide assembly, a traction assembly and a driving assembly, wherein the lifting table is arranged on the main body, the tensioning jack is arranged on the lifting table, and a clamping hole is formed in the tensioning jack; the guide assembly and the traction assembly are both arranged on the main body, the guide assembly comprises an electromagnetic chuck, the electromagnetic chuck can penetrate through the clamping hole, the traction assembly comprises a traction wheel and a traction rope, the traction wheel is rotationally connected with the main body, and two ends of the traction rope are respectively connected with the traction wheel and the electromagnetic chuck; still rotate in the main part and be connected with total round and gyro wheel, total round is used for the drive the traction wheel with the gyro wheel rotates, the gyro wheel is used for driving the main part removes, drive assembly includes motor, lifter and DC power supply, the motor is used for driving total round, the lifter is used for driving the elevating platform, DC power supply is used for driving electromagnetic chuck.

Through adopting above-mentioned technical scheme, the elevating platform is used for driving the stretch-draw jack and moves to comparatively suitable height, the centre gripping hole is used for the centre gripping steel strand wires, electromagnetic chuck is used for adsorbing the tip that the steel strand wires droed down, make it can take place to rotate along with the change of electromagnetic chuck position, the traction wheel is used for tightening up or loosening the traction rope, the traction rope can twine on the traction wheel, when needs wear to establish the steel strand wires in the centre gripping hole, pass the nearly steel strand wires that droops down of centre gripping Kong Bingkao earlier with electromagnetic chuck, turn on DC power supply, make electromagnetic chuck lead to magnetism, attract the steel strand wires on electromagnetic chuck's terminal surface, then turn on the motor, the motor drives total round rotation, total round drives traction wheel and gyro wheel rotation, traction wheel tighten up the traction rope, electromagnetic chuck and steel strand wires are in same straight line, in this process, the gyro wheel drives the main part and moves forward, make electromagnetic chuck wear the centre gripping hole, and then drive the steel strand wires and wear to establish the automation to the steel strand wires, follow-up stretch-up process. Through utilizing the material characteristic of steel strand wires, use the magnetic attraction's mode to come to automatic with the steel strand wires to straighten, drive the main part again along the horizontal direction motion, can accomplish the wearing of steel strand wires and establish, and need not artifical rotatory tensioning jack and adjust the inclination of grip opening to and artifical bearing steel strand wires wears to establish, thereby can improve the operating efficiency, reduce the operation degree of difficulty and the human cost of tensioning operation by a wide margin.

Optionally, the guide assembly further includes a carrying disc, the carrying disc is mounted on the outer side of the clamping hole, and the carrying disc is used for placing the electromagnetic chuck.

Through adopting above-mentioned technical scheme, bear the weight of the dish and install on the both sides terminal surface of centre gripping hole for place the electromagnetic chuck before the tractive and the electromagnetic chuck after the tractive, make electromagnetic chuck under the circumstances of breaking the magnetism around work, can not drool down easily in the main part, avoid adsorbing inaccurate condition after leading to magnetism, thereby need not the manual work and adjust, bear the weight of the dish and played spacing effect to electromagnetic chuck, make electromagnetic chuck accomodate more easily, can reduce constructor's work load.

Optionally, the main body is provided with a first driving wheel and a second driving wheel, the first driving wheel and the second driving wheel are respectively meshed with the total driving wheel, the first driving wheel and the traction wheel are coaxially and fixedly connected, and the second driving wheel and the roller are coaxially and fixedly connected.

Through adopting above-mentioned technical scheme, first drive wheel is used for giving the traction wheel with the power transmission of total round, and the second drive wheel is used for giving the gyro wheel with the power transmission of total round, and the cooperation mode of gear and transfer line is high-efficient convenient to through the speed of adjusting traction wheel and gyro wheel motion of the number of teeth of first drive wheel and second drive wheel, thereby realize better cooperation in traction and removal in-process.

Optionally, be provided with the holding tank on the bottom surface of main part, install the slide rail in the holding tank, it is connected with the slider to slide on the slide rail, fixed mounting has the folding chair on the slider.

Through adopting above-mentioned technical scheme, because the interior incasement space of case roof beam is narrow and small, constructor is difficult to stand directly to operate generally, is inconvenient for application of force and control equipment, when carrying out construction operation, can slide out folding chair from the holding tank of main part bottom, can the position of sitting after expanding and carry out construction operation to can be convenient for constructor application of force and save physical power, and carry out the stretch-draw operation with more concentrated attention.

Optionally, the folding chair includes diaphragm and riser, the diaphragm with slider fixed connection, the riser with diaphragm fixed connection, the one end that the riser is close to ground is provided with the gyro wheel.

Through adopting above-mentioned technical scheme, the diaphragm is used for taking, and the riser is used for supporting, and the gyro wheel of riser tip makes constructor carry out construction operation with the position of sitting when, and the main part still can the forward movement, is convenient for accomplish the operation of wearing to the steel strand wires.

Optionally, still be provided with the storing box in the main part, the storing box is located the main part is kept away from the one end of elevating platform, the storing box is used for placing ground tackle clamping piece and stopper.

Through adopting above-mentioned technical scheme, required ground tackle clamping piece and stopper when can depositing the stretch-draw in the storing box to take in the operation in-process, and the storing box is located the one end that the elevating platform was kept away from to the main part, can also balance the focus of main part after loading ground tackle clamping piece and stopper, avoid the one end that stretch-draw jack was located, because the quality is too big leads to the main part to appear tipping the phenomenon, thereby can improve the stability that the device used.

Optionally, the driving assembly further comprises a hand-operated wheel, the hand-operated wheel is coaxially and fixedly connected with the traction wheel, and a rocker is arranged on the hand-operated wheel.

Through adopting above-mentioned technical scheme, hand wheel is used for finely tuning the traction wheel, can drive hand wheel through holding the rocker, and then drives traction wheel and gyro wheel to accomplish the slight adjustment to electromagnet and gyro wheel position, need not to adjust through driving motor, therefore can avoid taking place because of the too big collision condition that leads to of adjustment range, thereby can improve flexibility and the security that the device used.

Optionally, the brake assembly is mounted on the main body and used for preventing the total wheel from rotating.

Through adopting above-mentioned technical scheme, when needs braking, control the rotation that the brake subassembly can be rapid stop the total round, and then stop the rotation of traction wheel and gyro wheel to can further improve the security that the device used.

Optionally, the brake assembly includes brake handle, brake line and two clamping pieces, two the clamping pieces install respectively in the both sides of total round, two the clamping pieces pass through the brake line with brake handle links to each other, brake handle is used for driving two the clamping pieces are close to each other.

Through adopting above-mentioned technical scheme, through pressing the braking handle, can drive the braking line and remove, and then drive two clamping pieces and be close to each other, support and press on the side of general round to can realize the braking to general round, the cooperation mode of braking handle and clamping piece is simple direct, makes braking process swift high-efficient.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by utilizing the material characteristics of the steel strands, the steel strands are automatically straightened in a magnetic attraction mode, and then the main body is driven to move along the horizontal direction, so that the steel strands can be penetrated without manually rotating the tensioning jack to adjust the inclination angle of the clamping opening and manually supporting the steel strands to be penetrated, thereby improving the working efficiency and greatly reducing the operation difficulty and the labor cost of tensioning operation;

2. the bearing disc is used for placing the electromagnetic chuck before traction and the electromagnetic chuck after traction, so that the electromagnetic chuck cannot easily drool on the main body under the condition of magnetic interruption before and after working, the situation of inaccurate adsorption after magnetic flux is avoided, the electromagnetic chuck is more easily stored, and the workload of constructors can be reduced;

3. when the construction operation is carried out, the folding chair can be slipped out from the accommodating groove at the bottom of the main body, and the construction operation can be carried out in a sitting posture after the folding chair is unfolded, so that the force application and the physical preservation of constructors can be facilitated, and the tensioning operation can be carried out with more concentrated attention.

Drawings

Fig. 1 is a schematic structural diagram of a mobile prestress tension assist device according to an embodiment of the present application.

Fig. 2 is a schematic structural view of the main body of fig. 1.

Fig. 3 is a schematic view of another angle of the movable prestress tension assist device according to an embodiment of the present application.

Fig. 4 is a schematic structural view of the tensioning jack of fig. 3.

Reference numerals illustrate:

1. a main body; 11. a main wheel; 12. a roller; 13. a first driving wheel; 14. a second driving wheel; 15. a receiving groove; 151. a slide rail; 152. a slide block; 16. a folding chair; 161. a cross plate; 162. a riser; 17. a follower wheel; 2. a lifting table; 3. tensioning jack; 31. a clamping hole; 4. a guide assembly; 41. an electromagnetic chuck; 42. a carrying tray; 421. a baffle; 5. a pulling assembly; 51. pulling the rope; 52. a traction wheel; 6. a drive assembly; 61. a motor; 62. a lifting rod; 63. a direct current power supply; 64. hand-operated wheels; 641. a rocker; 7. a storage box; 8. a brake assembly; 81. a brake grip; 82. braking the wire; 83. and (5) clamping the sheet.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-4.

The embodiment of the application discloses a movable prestress tensioning auxiliary device. Referring to fig. 1 and 2, the movable prestress tensioning auxiliary device comprises a main body 1, a lifting platform 2, a tensioning jack 3, a guide assembly 4, a traction assembly 5 and a driving assembly 6, wherein the main body 1 is square, the lifting platform 2 is fixedly arranged on the upper surface of the main body 1, the tensioning jack 3 is cylindrical, the tensioning jack 3 is fixedly arranged on the lifting platform 2, the lifting platform 2 is used for driving the tensioning jack 3 to move to a proper height, a clamping hole 31 is formed in the center of the end face of the tensioning jack 3, and the clamping hole 31 is used for clamping a steel strand; the guiding component 4 comprises an electromagnetic chuck 41, the electromagnetic chuck 41 is also cylindrical, the electromagnetic chuck 41 can pass through the clamping hole 31, and the electromagnetic chuck 41 is used for adsorbing the end part of the drooping of the steel strand so that the end part can rotate along with the change of the position of the electromagnetic chuck 41; the traction assembly 5 comprises a traction wheel 52 and a traction rope 51, the traction wheel 52 is rotationally connected with the main body 1, two ends of the traction rope 51 are respectively connected with the traction wheel 52 and the electromagnetic chuck 41, the traction rope 51 can be wound on the traction wheel 52, the traction assembly 5 is used for applying a tensile force to the electromagnetic chuck 41, and the electromagnetic chuck 41 drives the steel strand to be tensioned until the steel strand is perpendicular to the end face of the tensioning jack 3, so that the steel strand can conveniently pass through the clamping hole 31; the bottom surface of the main body 1 is rotationally connected with two rollers 12, and the rollers 12 are used for driving the main body 1 to move; the driving assembly 6 comprises a motor 61, a direct current power supply 63 and a lifting rod 62, wherein the motor 61 is arranged on the main body 1, and the motor 61 is used for driving the traction wheel 52 and the roller 12; the dc power supply 63 is installed at the back of the electromagnetic chuck 41, the dc power supply 63 is used for driving the electromagnetic chuck 41, the lifting rod 62 is installed on the lifting table 2, and the lifting rod 62 is used for driving the lifting table 2.

When the steel strand is required to be penetrated into the clamping hole 31, the electromagnetic chuck 41 is firstly penetrated through the clamping hole 31 and is close to the steel strand drooping, the direct-current power supply 63 is started, the electromagnetic chuck 41 is electrified and magnetized, the steel strand is attracted onto the end face of the electromagnetic chuck 41, then the motor 61 is started, the motor 61 drives the traction wheel 52 and the roller 12 to rotate, the traction wheel 52 tightens the traction rope 51, the electromagnetic chuck 41 and the steel strand are positioned in the same straight line, in the process, the roller 12 drives the main body 1 to move forwards, the electromagnetic chuck 41 penetrates out of the clamping hole 31, the steel strand is further driven to penetrate through the clamping hole 31, and the automatic penetration of the steel strand is completed, so that the subsequent tensioning procedure is facilitated. Through utilizing the material characteristic of steel strand wires, use the magnetic attraction's mode to come to automatic with the steel strand wires to straighten, drive main part 1 again along the horizontal direction motion, can accomplish the wearing of steel strand wires and establish, and need not artifical rotatory tensioning jack 3 and adjust the inclination of grip opening to and artifical bearing steel strand wires wears to establish, thereby can improve the operating efficiency, reduce the operation degree of difficulty and the human cost of tensioning operation by a wide margin.

Referring to fig. 1 and 2, a containing cavity is arranged in a main body 1, three transmission shafts are horizontally arranged in the containing cavity, the transmission shafts are connected with the side wall of the containing cavity in a rotating way, the three transmission shafts are sequentially arranged from top to bottom, a total driving wheel 11, a first transmission wheel 13 and a second transmission wheel 14 are also arranged in the containing cavity, a traction wheel 52 and the first transmission wheel 13 are arranged on the transmission shaft positioned at the uppermost position, a roller 12 and the second transmission wheel 14 are arranged on the transmission shaft positioned at the lowermost position, the roller 12 is positioned at two ends of the transmission shaft at the lowermost position, the roller 12 is contacted with the ground, the total driving wheel 11 is arranged on the transmission shaft in the middle and is respectively meshed with the first transmission wheel 13 and the second transmission wheel 14, and an output shaft of a motor 61 is fixedly connected with the transmission shaft where the total driving wheel 11 is positioned; the bottom surface of the accommodating cavity is also provided with a connecting shaft which is parallel to the rotating shaft, two follower wheels 17 are arranged at two ends of the connecting shaft, the follower wheels 17 and the roller wheels 12 are contacted with the ground together to keep the balance of the main body 1, the top surface of the accommodating cavity is provided with a strip-shaped hole, and the traction wheel 52 is positioned in the strip-shaped hole; the first driving wheel 13 transmits the power of the total driving wheel 11 to the traction wheel 52, the second driving wheel 14 transmits the power of the total driving wheel 11 to the roller 12, the matching of gears and driving rods is efficient and convenient, the moving speed of the traction wheel 52 and the roller 12 can be adjusted by adjusting the tooth number of the first driving wheel 13 and the second driving wheel 14, and better cooperative matching is realized in the traction and moving process.

Referring to fig. 1 and 4, the guide assembly 4 further includes a carrying disc 42, two carrying discs 42 are respectively installed at the bottoms of two side end faces of the clamping hole 31, the carrying disc 42 is made of non-magnetic materials, the carrying disc 42 is used for placing the electromagnetic chuck 41 before and after traction, the baffle 421 is installed at one end of the carrying disc 42 far away from the clamping hole 31, and is used for avoiding the electromagnetic chuck 41 from falling easily, so that the electromagnetic chuck 41 cannot easily droop on the main body 1 under the condition of magnetic interruption before and after working, the condition of inaccurate adsorption after magnetic interruption is avoided, manual adjustment is not needed, and the carrying disc 42 plays a limiting role on the electromagnetic chuck 41, so that the electromagnetic chuck 41 is more easily stored, and the workload of constructors can be reduced.

Referring to fig. 2 and 3, a receiving groove 15 is formed in the bottom surface of one end, far away from the lifting platform 2, of the main body 1, the receiving groove 15 is arranged along the length direction of the main body 1, a sliding rail 151 is mounted on the side wall of the receiving groove 15, a sliding block 152 is connected to the sliding rail 151 in a sliding manner, a folding chair 16 is fixedly mounted at the end part of the sliding block 152, the folding chair 16 comprises a transverse plate 161 and a vertical plate 162, the cross sections of the transverse plate 161 and the vertical plate 162 are square, one end, close to the sliding block 152, of the transverse plate 161 is fixedly connected with the sliding block 152, the transverse plate 161 is used for taking, the bottom end of the vertical plate 162 is fixedly connected with the other end of the transverse plate 161, and the vertical plate 162 is used for supporting; the bottom surface fixedly connected with gyro wheel 12 of riser 162, gyro wheel 12 are used for making constructor carry out construction operation with the position of sitting, and main part 1 still can the forward movement, is convenient for accomplish the operation of wearing to establish the steel strand wires. Because the inner box inner space of the box girder is narrow, constructors are difficult to stand straight for operation, and the force application and control equipment are inconvenient, the setting of the folding chair 16 enables constructors to perform construction operation in a sitting posture, the force application and physical preservation of the constructors are convenient, and the folding chair 16 can be easily and conveniently stored after construction is completed.

Referring to fig. 1 and 3, the storage box 7 is still installed to the upper surface of main part 1, and storage box 7 is square, and storage box 7 is located the top of holding tank 15, and storage box 7 is used for depositing required ground tackle clamping piece and stopper when stretch-draw to take in the operation in-process, and storage box 7 is located the one end that main part 1 kept away from elevating platform 2, can also balance the focus of main part 1 after loading ground tackle clamping piece and stopper, avoids stretch-draw jack 3 place's one end, because the quality is too big leads to main part 1 to appear the phenomenon of tipping, can improve the stability that the device used.

Referring to fig. 1 and 2, the driving assembly 6 further includes a hand wheel 64, the hand wheel 64 is located at a side of the main body 1, the hand wheel 64 is fixedly mounted on a transmission shaft where the traction wheel 52 is located, a rocker 641 is mounted on the hand wheel 64, the hand wheel 64 is used for fine tuning the traction wheel 52, the hand wheel 64 can be driven by holding the rocker 641, and then the traction wheel 52 and the roller 12 are driven, so that the positions of the electromagnetic chuck 41 and the roller 12 are slightly adjusted without being adjusted by a driving motor 61, collision caused by overlarge adjustment amplitude can be avoided, and flexibility and safety of device use are improved.

Referring to fig. 1 and 2, the device further comprises a brake assembly 8, the brake assembly 8 is used for preventing the total wheel 11 from rotating, the brake assembly 8 comprises a brake handle 81, a brake wire 82 and two clamping pieces 83, the brake handle 81 is arranged on the side surface of the main body 1, the two clamping pieces 83 are arranged in the accommodating groove 15 and are positioned on two sides of the total wheel 11, the two clamping pieces 83 are connected with the brake handle 81 through the brake wire 82, and the brake handle 81 is used for driving the two clamping pieces 83 to be close to each other; when braking is needed, the braking handle 81 is pressed to drive the braking line 82 to move, so that the two clamping pieces 83 are driven to be close to each other and are propped against the side surface of the main driving wheel 11, so that the main driving wheel 11 is difficult to rotate, braking of the main driving wheel 11 is realized, the braking assembly 8 is controlled to rapidly stop the rotation of the main driving wheel 11, the traction wheel 52 and the roller 12 are stopped, and the use safety of the device is further improved.

The implementation principle of the movable prestress tensioning auxiliary device provided by the embodiment of the application is as follows: when a steel strand is required to be penetrated into the clamping hole 31, firstly, a lifting rod 62 is started, the lifting table 2 is driven to drive the tensioning jack 3 to move to a proper height, then the electromagnetic chuck 41 passes through the clamping hole 31 and is close to the steel strand drooping, a direct-current power supply 63 is started, the electromagnetic chuck 41 is electrified and magnetized, the steel strand is firmly adsorbed on the end face of the electromagnetic chuck 41, then, a motor 61 is started, the motor 61 drives a general driving wheel 11 to rotate, the general driving wheel 11 drives a first driving wheel 13 and a second driving wheel 14 to rotate, further drives a traction wheel 52 and a roller 12 to rotate, the traction wheel 52 tightens the traction rope 51, winds part of the traction rope 51 on the traction wheel 52, enables the rest traction rope 51 to be tensed, drives the electromagnetic chuck 41 and the steel strand to be in the same straight line and be perpendicular to the end face of the tensioning jack 3, and in the process, the roller 12 drives the main body 1 to move forwards, the electromagnetic chuck 41 and the traction rope 51 is enabled to be penetrated out of the clamping hole 31, and further the steel strand is driven to be penetrated into the clamping hole 31 from the clamping hole 31, and automatic penetration of the steel strand is completed; through utilizing the material characteristic of steel strand wires, use the magnetic attraction's mode to come to automatic with the steel strand wires to straighten, drive main part 1 again along the horizontal direction motion, can be under the condition that need not manpower rotation tensioning jack 3 and bearing steel strand wires, easily accomplish the wearing of steel strand wires and establish.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The utility model provides a portable prestressing force stretch-draw auxiliary device which characterized in that: the lifting device comprises a main body (1), a lifting table (2), a tensioning jack (3), a guide assembly (4), a traction assembly (5) and a driving assembly (6), wherein the lifting table (2) is installed on the main body (1), the tensioning jack (3) is installed on the lifting table (2), and a clamping hole (31) is formed in the tensioning jack (3); the guide assembly (4) and the traction assembly (5) are both arranged on the main body (1), the guide assembly (4) comprises an electromagnetic chuck (41), the electromagnetic chuck (41) can penetrate through the clamping hole (31), the traction assembly (5) comprises a traction wheel (52) and a traction rope (51), the traction wheel (52) is rotationally connected with the main body (1), and two ends of the traction rope (51) are respectively connected with the traction wheel (52) and the electromagnetic chuck (41); still rotate on main part (1) and be connected with total round (11) and gyro wheel (12), total round (11) are used for the drive traction wheel (52) with gyro wheel (12) rotate, gyro wheel (12) are used for driving main part (1) remove, drive assembly (6) include motor (61), lifter (62) and DC power supply (63), motor (61) are used for the drive total round (11), lifter (62) are used for the drive elevating platform (2), DC power supply (63) are used for the drive electromagnetic chuck (41).

2. A mobile prestress tensioning assist device according to claim 1, wherein: the guide assembly (4) further comprises a bearing disc (42), the bearing disc (42) is mounted on the outer side of the clamping hole (31), and the bearing disc (42) is used for placing the electromagnetic chuck (41).

3. A mobile prestress tensioning assist device according to claim 1, wherein: the traction device is characterized in that a first driving wheel (13) and a second driving wheel (14) are arranged on the main body (1), the first driving wheel (13) and the second driving wheel (14) are respectively connected with the total driving wheel (11) in a meshed mode, the first driving wheel (13) and the traction wheel (52) are coaxially and fixedly connected, and the second driving wheel (14) and the rolling wheel (12) are coaxially and fixedly connected.

4. A mobile prestress tensioning assist device according to claim 1, wherein: the folding chair is characterized in that an accommodating groove (15) is formed in the bottom surface of the main body (1), a sliding rail (151) is arranged in the accommodating groove (15), a sliding block (152) is connected onto the sliding rail (151) in a sliding mode, and a folding chair (16) is fixedly arranged on the sliding block (152).

5. The mobile prestressed tensioning assist device of claim 4, wherein: the folding chair (16) comprises a transverse plate (161) and a vertical plate (162), wherein the transverse plate (161) is fixedly connected with the sliding block (152), the vertical plate (162) is fixedly connected with the transverse plate (161), and one end, close to the ground, of the vertical plate (162) is provided with a roller (12).

6. A mobile prestress tensioning assist device according to claim 1, wherein: the novel lifting platform is characterized in that a storage box (7) is further arranged on the main body (1), the storage box (7) is located at one end, far away from the lifting platform (2), of the main body (1), and the storage box (7) is used for placing an anchor clamping piece and a limiting block.

7. A mobile prestress tensioning assist device according to claim 1, wherein: the driving assembly (6) further comprises a hand-operated wheel (64), the hand-operated wheel (64) is fixedly connected with the traction wheel (52) in a coaxial mode, and a rocker (641) is arranged on the hand-operated wheel (64).

8. A mobile prestress tensioning assist device according to claim 1, wherein: the novel bicycle brake further comprises a brake assembly (8), wherein the brake assembly (8) is mounted on the main body (1), and the brake assembly (8) is used for preventing the total wheel (11) from rotating.

9. The mobile prestressed tensioning assist device of claim 8, wherein: the braking assembly (8) comprises a braking handle (81), a braking wire (82) and two clamping pieces (83), wherein the two clamping pieces (83) are respectively arranged on two sides of the total driving wheel (11), the two clamping pieces (83) are connected with the braking handle (81) through the braking wire (82), and the braking handle (81) is used for driving the two clamping pieces (83) to be close to each other.