A meshing prestressed tensioning device

Abstract

The present invention discloses a meshing type prestressed tensioning device, including a tensioning machine lower part, a tensioning machine upper part and a fixing plate, one side of the tensioning machine lower part is connected and fixed to a wall, a motor is arranged in the tensioning machine lower part, a movable groove is arranged at the center of one side of the tensioning machine lower part away from the wall, a movable gear is arranged in the movable groove, a thrust ball bearing is fixed on one side of the movable gear, a plurality of tensioning machine fixing ports are evenly arranged on the outer surface of the tensioning machine lower part and located outside the movable groove, a plurality of tensioning machine upper inserters are arranged on one side of the tensioning machine upper part, and the tensioning machine upper inserter is inserted into the tensioning machine fixing port. Beneficial effect: This structure can complete the tensioning at one time, without the requirement of single tensioning length, and the calculation of tensioning length does not require a second inversion of the cylinder; this structure is a mechanical structure tensioning, and the tensioning work can be carried out by using a motor to drive the end face gear structure, and the operation is safe and convenient.

Description

Technical Field

[0001] The invention relates to the technical field of tensioning equipment, in particular to a meshing type prestressed tensioning device. Background Art

[0002] Traditional prestressed tensioning devices are mostly hydraulic tensioning equipment, and their stroke is generally limited (mostly a maximum of 20cm). If the calculated tensioning length exceeds the stroke, the cylinder must be inverted, and it is easy to make operating errors. The anchor plate at the front end of the hydraulic jack has no return device. When the cylinder is inverted, the anchor plate is very easy to fall off, which can easily cause tensioning control errors.

[0003] Currently, no effective solution has been proposed for the problems in the related technologies. Summary of the invention

[0004] In view of the problems in the related art, the present invention proposes a meshing prestressed tensioning device to overcome the above-mentioned technical problems existing in the existing related art.

[0005] To this end, the specific technical solution adopted by the present invention is as follows:

[0006] A meshing prestressed tensioning device, comprising a tensioning machine lower part, a tensioning machine upper part and a fixing plate, wherein one side of the tensioning machine lower part is connected and fixed to a wall, a motor is arranged in the tensioning machine lower part, a movable groove is arranged at the center of one side of the tensioning machine lower part away from the wall, a movable gear is arranged in the movable groove, a thrust ball bearing is fixed to one side of the movable gear, a plurality of tensioning machine fixing ports are evenly arranged on the outer surface of the tensioning machine lower part and located on the outer side of the movable groove, a plurality of tensioning machine upper inserters are arranged on one side of the tensioning machine upper part, and the tensioning machine upper inserter is inserted into the tensioning machine In the fixing opening of the equipment, a fixed gear part matching with the movable gear part is provided on the upper part of the tensioning equipment near the lower part of the tensioning equipment, an anchor is provided at the center of the upper part of the tensioning equipment away from the lower part of the tensioning equipment, a limiting anchor is provided on the anchor, and the outer surfaces of the limiting anchor and the upper part of the tensioning equipment are both provided with an extrusion spring, the other end of the extrusion spring is squeezed together with the fixed plate, and the fixed plate is connected and fixed to the wall through a fixed connecting rod, and the steel strand extends from the wall through the lower part of the tensioning equipment, the upper part of the tensioning equipment and the fixed plate to the outside of the fixed plate.

[0007] Preferably, a second limiting anchor is provided at the lower part of the tensioning machine near the center of one side of the wall, a second anchor is provided on one side of the second limiting anchor, and a groove matching the second limiting anchor and the second anchor is provided on the wall.

[0008] Preferably, the steel strand passes through the two limiting anchors and the two anchors, and a clip cooperating with the steel strand is provided between the limiting anchor and the anchor.

[0009] Preferably, two deep groove ball bearings are symmetrically fixed to the outer surface of the movable gear member, and the movable gear member is movably connected to the movable groove via the two deep groove ball bearings.

[0010] Preferably, both ends of the fixed connecting rod are connected and fixed to the fixing plate and the wall by bolts respectively.

[0011] Preferably, the movable gear member and the fixed gear member are provided with engaging teeth on opposite sides thereof, and the two groups of engaging teeth mesh with each other.

[0012] The beneficial effects of the present invention are:

[0013] This structure can complete the tensioning in one time, without the requirement of single tensioning length, and there is no need to reverse the cylinder twice to calculate the tensioning length; this structure is a mechanical structure tensioning, and the tensioning work can be carried out by using a motor to drive the end face gear structure, which is safe and convenient to operate;

[0014] This structure is equipped with a return device, which can smoothly return to its original position after each mechanism movement to ensure continued smooth tensioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 is a structural schematic diagram of a meshing prestressed tensioning device according to an embodiment of the present invention;

[0017] Figure 2 is a schematic diagram of the internal structure of a meshing prestressed tensioning device according to an embodiment of the present invention;

[0018] Figure 3 It is a schematic diagram of the lower structure of a tensioning machine of a meshing type prestressed tensioning device according to an embodiment of the present invention;

[0019] Figure 4 AA cross-sectional structural schematic diagram of a meshing type prestressed tensioning device according to an embodiment of the present invention;

[0020] Figure 5 It is a schematic diagram of the upper structure of a tensioning machine of a meshing type prestressed tensioning device according to an embodiment of the present invention;

[0021] Figure 6 BB cross-sectional structural schematic diagram of a meshing type prestressed tensioning device according to an embodiment of the present invention;

[0022] Figure 7 2 is a CC cross-sectional structural schematic diagram of a meshing type prestressed tensioning device according to an embodiment of the present invention;

[0023] Figure 8 The figure is a schematic diagram of the fixed plate structure of a meshing prestressed tensioning device according to an embodiment of the present invention.

[0024] In the figure:

[0025] 1. The lower part of the tensioning machine; 2. The upper part of the tensioning machine; 3. The motor; 4. The thrust ball bearing; 5. The movable gear; 6. The deep groove ball bearing; 7. The fixing port of the tensioning machine; 8. The inserter of the upper part of the tensioning machine; 9. The fixed gear; 10. The anchor; 11. The limit anchor; 12. The extrusion spring; 13. The fixing plate; 14. The fixed connecting rod; 15. The steel strand; 16. The clip. DETAILED DESCRIPTION

[0026] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0027] According to an embodiment of the present invention, a meshing prestressed tensioning device is provided.

[0028] Embodiment 1, as Figure 1- As shown in 8, a meshing prestressed tensioning device according to an embodiment of the present invention comprises a tensioning machine lower part 1, a tensioning machine upper part 2 and a fixing plate 13, one side of the tensioning machine lower part 1 is connected and fixed to the wall, a motor 3 is arranged in the tensioning machine lower part 1, a movable groove is arranged at the center of one side of the tensioning machine lower part 1 away from the wall, a movable gear part 5 is arranged in the movable groove, a thrust ball bearing 4 is fixed to one side of the movable gear part 5, a plurality of tensioning machine fixing ports 7 are evenly arranged on the outer surface of the tensioning machine lower part 1 and located on the outer side of the movable groove, a plurality of tensioning machine upper inserters 8 are arranged on one side of the tensioning machine upper part 2, and the tensioning machine upper inserter 8 is inserted into the tensioning machine In the fixing opening 7, a fixed gear part 9 cooperating with the movable gear part 5 is provided on the side of the upper part 2 of the tensioning machine close to the lower part 1 of the tensioning machine, and an anchor 10 is provided at the center of the side of the upper part 2 of the tensioning machine away from the lower part 1 of the tensioning machine, and a limiting anchor 11 is provided on the anchor 10, and the outer surfaces of the limiting anchor 11 and the upper part 2 of the tensioning machine are both provided with a compression spring 12, and the other end of the compression spring 12 is squeezed together with the fixing plate 13, and the fixing plate 13 is connected and fixed to the wall through a fixed connecting rod 14, and a steel strand 15 extends from the wall through the lower part 1 of the tensioning machine, the upper part 2 of the tensioning machine and the fixing plate 13 to the outside of the fixing plate 13.

[0029] Embodiment 2, as Figure 1- As shown in 8, it includes a tensioning machine lower part 1, a tensioning machine upper part 2 and a fixing plate 13, one side of the tensioning machine lower part 1 is connected and fixed to the wall, a motor 3 is arranged in the tensioning machine lower part 1, a movable groove is arranged at the center of the side of the tensioning machine lower part 1 away from the wall, a movable gear part 5 is arranged in the movable groove, a thrust ball bearing 4 is fixed to one side of the movable gear part 5, the outer surface of the tensioning machine lower part 1 is located on the outer side of the movable groove and is provided with a plurality of tensioning machine fixing ports 7, a plurality of tensioning machine upper inserters 8 are arranged on one side of the tensioning machine upper part 2, the tensioning machine upper inserter 8 is inserted into the tensioning machine fixing port 7, a fixed gear part 9 matching with the movable gear part 5 is arranged on the side of the tensioning machine upper part 2 close to the tensioning machine lower part 1, an anchor 10 is arranged at the center of the side of the tensioning machine upper part 2 away from the tensioning machine lower part 1, and a limit is arranged on the anchor 10 The limiting anchor 11 and the upper part 2 of the tensioning machine are both provided with an extrusion spring 12 on their outer surfaces, the other end of the extrusion spring 12 is squeezed together with the fixing plate 13, the fixing plate 13 is connected and fixed to the wall through a fixing connecting rod 14, and a steel strand 15 extends from the wall through the lower part 1 of the tensioning machine, the upper part 2 of the tensioning machine and the fixing plate 13 to the outside of the fixing plate 13, a second limiting anchor 11 is provided at the center of one side of the tensioning machine lower part 1 close to the wall, a second anchor 10 is provided on one side of the second limiting anchor 11, a groove matching with the second limiting anchor 11 and the second anchor 10 is provided on the wall, the steel strand 15 passes through the two limiting anchors 11 and the two anchors 10, and a clip 16 matching with the steel strand 15 is provided between the limiting anchor 11 and the anchor 10. It is not difficult to see from the above design that the design of the anti-slip texture is relatively conventional, so no detailed description is given.

[0030] Embodiment three, as Figure 1- As shown in FIG8 , it comprises a tensioning machine lower part 1, a tensioning machine upper part 2 and a fixing plate 13, one side of the tensioning machine lower part 1 is connected and fixed to the wall, a motor 3 is arranged in the tensioning machine lower part 1, a movable groove is arranged at the center of the side of the tensioning machine lower part 1 away from the wall, a movable gear part 5 is arranged in the movable groove, a thrust ball bearing 4 is fixed to one side of the movable gear part 5, the outer surface of the tensioning machine lower part 1 is located on the outer side of the movable groove and is provided with a plurality of tensioning machine fixing ports 7, a plurality of tensioning machine upper inserters 8 are arranged on one side of the tensioning machine upper part 2, the tensioning machine upper inserter 8 is inserted into the tensioning machine fixing port 7, a fixed gear part 9 matching with the movable gear part 5 is arranged on the side of the tensioning machine upper part 2 close to the tensioning machine lower part 1, and an anchor 1 is arranged at the center of the side of the tensioning machine upper part 2 away from the tensioning machine lower part 1 0, the anchor 10 is provided with a limit anchor 11, and the outer surfaces of the limit anchor 11 and the upper part 2 of the tensioning machine are both provided with a compression spring 12, and the other end of the compression spring 12 is squeezed together with the fixed plate 13, and the fixed plate 13 is connected and fixed to the wall through a fixed connecting rod 14, and the steel strand 15 extends from the wall through the lower part 1 of the tensioning machine, the upper part 2 of the tensioning machine and the fixed plate 13 to the outside of the fixed plate 13, and the outer surface of the movable gear part 5 is symmetrically fixed with two deep groove ball bearings 6, and the movable gear part 5 is movably connected with the movable groove through the two deep groove ball bearings 6, and the two ends of the fixed connecting rod 14 are respectively connected and fixed with the fixed plate 13 and the wall by bolts, and the movable gear part 5 and the fixed gear part 9 are provided with meshing teeth on the opposite sides, and the two groups of meshing teeth are meshed with each other. It is not difficult to see from the above design that the axial fixing ability and rotation stability of the movable gear part 5 are improved by the design of the deep groove ball bearing 6.

[0031] In summary, with the help of the above technical solution of the present invention, after installation, the motor 3 is started, the movable gear member 5 on the side of the tensioning tool lower part 1 rotates clockwise, and meshes with the fixed gear member 9 on the side of the tensioning tool upper part 2. Due to the rotation limit of the tensioning tool fixing port 7 and the tensioning tool upper inserter 8, the tensioning tool upper part 2 and the tensioning tool lower part 1 cannot rotate with it, so that horizontal displacement (to the right in the figure) occurs. Due to the anchor 10, the limit anchor 11, and the clip 16 The combined effect of the prestressed anchor cable is tensioned to the right. Due to the action of the extrusion spring 12, the upper part 2 of the tensioning machine together with the anchor 10 rebounds, so that the lower part 1 of the tensioning machine and the upper part 2 of the tensioning machine are engaged again. Due to the different elastic forces of the extrusion spring 12, the upper part 2 of the tensioning machine rebounds first, and the limiting anchor 11 and the clip 16 rebound later. Here, the steel strand 15 and the clip 16 are loosened, which can ensure that the upper part 2 of the tensioning machine returns to its original position smoothly. This process is repeated until the tensioning length is reached, and then the tensioning device is removed.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A meshing prestressed tensioning device, characterized in that: The invention comprises a tensioning machine lower part (1), a tensioning machine upper part (2) and a fixing plate (13), wherein one side of the tensioning machine lower part (1) is connected and fixed to a wall, a motor (3) is arranged in the tensioning machine lower part (1), a movable groove is arranged at the center of one side of the tensioning machine lower part (1) away from the wall, a movable gear part (5) is arranged in the movable groove, a thrust ball bearing (4) is fixed to one side of the movable gear part (5), a plurality of tensioning machine fixing openings (7) are evenly arranged on the outer surface of the tensioning machine lower part (1) and located outside the movable groove, a plurality of tensioning machine upper inserters (8) are arranged on one side of the tensioning machine upper part (2), the tensioning machine upper inserters (8) are inserted into the tensioning machine fixing openings (7), and the tensioning machine upper part (2) is close to the wall. A fixed gear member (9) cooperating with the movable gear member (5) is provided near the lower part (1) of the tensioning machine, an anchor (10) is provided at the center of the upper part (2) of the tensioning machine away from the lower part (1) of the tensioning machine, a limiting anchor (11) is provided on the anchor (10), and an extrusion spring (12) is provided on the outer surface of both the limiting anchor (11) and the upper part (2) of the tensioning machine, the other end of the extrusion spring (12) is squeezed together with the fixing plate (13), the fixing plate (13) is connected and fixed to the wall through a fixing connecting rod (14), and a steel strand (15) extends from the wall through the lower part (1) of the tensioning machine, the upper part (2) of the tensioning machine and the fixing plate (13) to the outer side of the fixing plate (13).

2. A meshing prestressed tensioning device according to claim 1, characterized in that: A second limiting anchor (11) is provided at the lower part (1) of the tensioning machine near the center of one side of the wall, a second anchor (10) is provided on one side of the second limiting anchor (11), and a groove matching the second limiting anchor (11) and the second anchor (10) is provided on the wall.

3. A meshing prestressed tensioning device according to claim 2, characterized in that: The steel strand (15) passes through the two limiting anchors (11) and the two anchors (10), and a clip (16) matching the steel strand (15) is provided between the limiting anchor (11) and the anchor (10).

4. A meshing prestressed tensioning device according to claim 3, characterized in that: Two deep groove ball bearings (6) are symmetrically fixed on the outer surface of the movable gear member (5), and the movable gear member (5) is movably connected to the movable groove via the two deep groove ball bearings (6).

5. A meshing prestressed tensioning device according to claim 4, characterized in that: Both ends of the fixed connecting rod (14) are respectively connected and fixed to the fixing plate (13) and the wall by bolts.

6. A meshing prestressed tensioning device according to claim 5, characterized in that: The movable gear member (5) and the fixed gear member (9) are both provided with engaging teeth on opposite sides thereof, and the two groups of engaging teeth mesh with each other.

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