Vertical prestressed steel bar tensioning device

Abstract

The utility model discloses a vertical prestressed steel bar tensioning device, relates to the technical field of building construction equipment, the tensioning device comprises two sliding chutes, a tensioning assembly and a driving assembly, the two sliding chutes are arranged on two sides of a prestressed steel bar at intervals, the tensioning assembly is arranged on the two sliding chutes, and the driving assembly is arranged on the tensioning assembly. The driving assembly is arranged below the tensioning assembly and used for driving the tensioning assembly to slide in the length direction of the two sliding grooves. According to the tensioning device, the tensioning assembly is driven by the driving assembly to slide on the two sliding grooves, the tensioning device can flexibly move between prestressed steel bars at preset positions, manual carrying is not needed, labor force is saved, and construction difficulty is lowered.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction devices, in particular to a vertical prestressed steel bar tensioning device. Background Art

[0002] A continuous rigid frame bridge refers to a continuous beam bridge with piers and beams consolidated. The main span is divided into a multi-span rigid frame bridge with a continuous beam and a multi-span continuous rigid frame bridge. Both use prestressed concrete structure, which is a commonly used structural system in the construction of large-span bridges. Its commonly used span is between 100 and 300 meters. Prestressed steel bars are widely used in prestressed components such as continuous rigid frame bridges due to their good mechanical properties, forgeability and strong bond strength with concrete. At the same time, during the construction of the bridge, the prestressed steel bars need to be tensioned.

[0003] The existing technology is to tension the prestressed steel rods through traditional tensioning bases and jacks. However, during construction, the traditional tensioning device needs to be moved by manual handling, which makes the device inconvenient to move, consumes a lot of labor, and is difficult to construct. Utility Model Content

[0004] The embodiment of the utility model provides a vertical prestressed steel bar tensioning device to solve the technical problem that the existing tensioning device in the related technology needs to be moved by manual handling during construction, which leads to inconvenience in moving the device, high labor consumption and high construction difficulty.

[0005] The utility model provides a vertical prestressed steel bar tensioning device, comprising:

[0006] Two slide grooves, the two slide grooves are arranged at intervals on both sides of the prestressed steel rod;

[0007] A tensioning component, the tensioning component is arranged on the two slide grooves;

[0008] A driving assembly is disposed below the tensioning assembly and is used to drive the tensioning assembly to slide along the length direction of the two slide grooves.

[0009] In some embodiments, the tensioning assembly includes:

[0010] A base, the base is arranged on the two slide grooves, and a circular hole is arranged in the middle of the base;

[0011] A tensioning jack is arranged on the base, and the tensioning jack includes a connector, and the connector passes through the circular hole to tension the prestressed steel rod below the base.

[0012] In some embodiments, the base comprises:

[0013] There are four supporting legs, one of which is provided with a fixing plate for fixing the driving assembly.

[0014] In some embodiments, two handles are correspondingly provided on two sides of the base.

[0015] In some embodiments, the drive assembly includes:

[0016] A rack, the rack being arranged below the base and between the two slide grooves;

[0017] A motor is fixed on the fixed plate, and the motor includes a gear. The gear rotates along the length direction of the rack and drives the tensioning assembly to slide along the length direction of the two slide grooves.

[0018] In some embodiments, a plurality of connecting rods are provided between two of the slide grooves, and one end of one of the connecting rods is fixedly connected to one of the slide grooves.

[0019] In some embodiments, the rack is provided on a plurality of the connecting rods, and the rack is located on one side of the prestressed steel rod and is parallel to the two sliding grooves.

[0020] In some embodiments, the connecting rod and the slide groove are fixedly connected by welding, and the rack and the connecting rod are also fixedly connected by welding.

[0021] In some embodiments, the motor is a digitally controlled motor.

[0022] In some embodiments, the two slideways, the tensioning assembly and the driving assembly are all made of steel.

[0023] The beneficial effects brought by the technical solution provided by the utility model include:

[0024] The embodiment of the utility model provides a vertical prestressed steel bar tensioning device, including two slides, a tensioning assembly and a driving assembly, wherein the two slides are arranged at intervals on both sides of the prestressed steel bar, the tensioning assembly is arranged on the two slides, and the driving assembly is arranged below the tensioning assembly, and is used to drive the tensioning assembly to slide along the length direction of the two slides. The tensioning device of the utility model drives the tensioning assembly to slide on the two slides through the driving assembly, and can be flexibly moved between the prestressed steel bars at preset positions, without the need for manual handling, saving labor and reducing construction difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of 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 creative work.

[0026] Figure 1 A schematic elevational structural diagram of a vertical prestressed steel bar tensioning device provided in an embodiment of the utility model;

[0027] Figure 2 A schematic diagram of the top view of a vertical prestressed steel bar tensioning device provided in an embodiment of the utility model;

[0028] Figure 3 A schematic diagram of the elevation structure of the tensioning assembly provided in an embodiment of the utility model;

[0029] Reference numerals:

[0030] 1. Slide; 11. Connecting rod;

[0031] 2. Prestressed steel bars;

[0032] 3. Tensioning assembly; 31. Base; 311. Round hole; 312. Support leg; 313. Fixing plate; 314. Handle; 32. Tensioning jack; 321. Connector;

[0033] 4. Driving assembly; 41. Rack; 42. Motor; 421. Gear. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] The embodiment of the utility model provides a vertical prestressed steel rod tensioning device, which can solve the technical problems that the existing tensioning device needs to be moved by manual handling during construction, resulting in inconvenient movement of the device, high labor consumption and high construction difficulty.

[0036] Figure 1 A vertical prestressed steel bar tensioning device is provided in an embodiment of the utility model, which comprises: two slide slots 1, a tensioning component 3 and a driving component 4.

[0037] The two slide grooves 1 are spaced apart on both sides of the prestressed steel rod 2, the tensioning assembly 3 is arranged on the two slide grooves 1, and the driving assembly 4 is arranged below the tensioning assembly 3 to drive the tensioning assembly 3 to slide along the length direction of the two slide grooves 1.

[0038] The tensioning device of the embodiment of the utility model is provided with two slide grooves, a tensioning assembly and a driving assembly. The two slide grooves are spaced apart on both sides of the prestressed steel rod, the tensioning assembly is arranged on the two slide grooves, and the driving assembly is arranged below the tensioning assembly to drive the tensioning assembly to slide along the length direction of the two slide grooves. The tensioning assembly is driven by the driving assembly to slide on the two slide grooves, and can be flexibly moved between the prestressed steel rods at preset positions without manual handling, thereby saving labor and reducing construction difficulty.

[0039] As an optional implementation, in a utility model embodiment, see Figure 1 As shown, the tensioning assembly 3 includes: a base 31 and a tensioning jack 32, the base 31 is arranged on the two slide grooves 1, a circular hole 311 is provided in the middle of the base 31, the tensioning jack 32 is arranged on the base 31, the tensioning jack 32 includes a connector 321, the connector 321 passes through the circular hole 311 to tension the prestressed steel rod 2 under the base 31, the connector 321 passes through the circular hole 311 and is connected to the prestressed steel rod 2 under the base 31, and the prestressed steel rod 2 is tensioned through the tensioning jack 32.

[0040] As an optional implementation, in a utility model embodiment, see Figure 1 and Figure 3 As shown, the base 31 includes: four supporting legs 312, one of the supporting legs 312 is provided with a fixing plate 313 for fixing the driving component 4, the two supporting legs 312 of the base 31 are provided on one of the slide slots 1, and slide along the length direction of the slide slot 1, and at the same time, the driving component 4 is fixed by a fixing plate 313 provided on one of the supporting legs 312, so that the driving component 4 drives the tensioning component 3 to slide along the length direction of the two slide slots 1, when the base 31 slides along the length direction of the two slide slots 1, the base 31 drives the tensioning jack 32 to slide along the length direction of the two slide slots 1, and can be flexibly moved between the prestressed steel bars 2 at preset positions.

[0041] As an optional implementation, in a utility model embodiment, see Figure 3 As shown, two handles 314 are correspondingly provided on both sides of the base 31 , and the handles 314 are convenient for taking the base 31 .

[0042] As an optional implementation, in a utility model embodiment, see Figure 1 and Figure 3 As shown, the driving assembly 4 includes: a rack 41 and a motor 42. The rack 41 is arranged below the base 31 and between the two slide grooves 1. The motor 42 is fixed on the fixed plate 313. The motor 42 includes a gear 421. The gear 421 rotates along the length direction of the rack 41 and drives the tensioning assembly 3 to slide along the length direction of the two slide grooves 1. The gear 421 and the rack 41 are both bite-type structures. The motor 42 outputs 1.5 to 2 times the motor torque. The torque makes the gear 421 mesh with the rack 41 to drive the gear 421 to rotate in one direction. The motor 42 and the gear 421 are fixed on the base 31. When the gear 421 rotates on the rack 41, it drives the base 31 to slide on the slide groove 1. The position of the base 31 can be flexibly adjusted to tension the prestressed steel bars 2 at different preset positions.

[0043] As an optional implementation, in a utility model embodiment, see Figure 2 As shown, a plurality of connecting rods 11 are provided between the two slide grooves 1, one end of one connecting rod 11 is fixedly connected to one slide groove 1, a plurality of connecting rods 11 are arranged between the two slide grooves 1 at intervals, and one end of one connecting rod 11 is fixedly connected to one slide groove 1, so as to fix the two slide grooves 1 and prevent the two slide grooves 1 from being displaced and deflected when the base 31 slides on the two slide grooves 1.

[0044] As an optional implementation, in a utility model embodiment, see Figure 2 As shown, the rack 41 is provided on a plurality of the connecting rods 11, and the rack 41 is located on one side of the prestressed steel rod 2 and parallel to the two slide grooves 1. In addition to fixing the two slide grooves 1, the plurality of connecting rods 1 are also used to fix the rack 41. The rack 41 is parallel to the two slide grooves 1, and the rack 41 is provided between the two slide grooves 1, and the rack 41 is located below the gear 421. The gear 421 can rotate along the length direction of the rack 41 and mesh with it. At the same time, the rack 41 is located on one side of the prestressed steel rod 2 to prevent the rack 41 from colliding with the prestressed steel rod 2, thereby preventing the rack 41 from affecting the tensioning of the prestressed steel rod 2.

[0045] As an optional implementation, in a utility model embodiment, see Figure 2As shown, the connecting rod 11 and the slide chute 1 are fixedly connected by welding, and the rack 41 and the connecting rod 11 are also fixedly connected by welding. The welding fixing method has a simple structure, easy operation, high joint strength, good density, metal saving, high productivity and low cost.

[0046] As an optional implementation, in a utility model embodiment, see Figure 1 As shown, the motor 42 is a numerically controlled motor, which drives the gear 421 to rotate. A feed instruction can be issued through the numerical control system, and after the power of the driving circuit is amplified, the gear 421 is driven to rotate. At the same time, the rotation angle of the gear 421 can be precisely controlled by the numerical control system, and the position of the gear 421 rotating on the rack 41 can be controlled to flexibly adjust the position of the tensioning component 3, so as to accurately position the prestressed steel rod 2 at the preset position, so that the tensioning component 3 tensions the precisely positioned prestressed steel rod 2.

[0047] As an optional implementation, in a utility model embodiment, see Figure 1 As shown, the two slide grooves 1, the tensioning assembly 3 and the driving assembly 4 are all made of steel. The steel has good toughness and plasticity, uniform material, high structural reliability, weldability, heat resistance and good assembly performance.

[0048] The working principle of the vertical prestressed steel rod tensioning device in the embodiment of the utility model is:

[0049] The two slides 1 are arranged on both sides of the prestressed steel rod 2, the rack 41 is arranged between the two slides 1, the tensioning assembly 3 is placed on the two slides 1, and the gear 421 is controlled by the numerical control system of the motor 42 to rotate on the rack 41 and mesh with the rack 41 to drive the tensioning assembly 3 to slide along the length direction of the two slides 1. At the same time, the numerical control system of the motor 42 can also accurately locate the moving position of the tensioning assembly 3. When the tensioning assembly 3 moves When it reaches the top of the prestressed steel rod 2 at the preset position, the connector 321 passes through the circular hole 311 and is connected to the prestressed steel rod 2 under the base 31, and the prestressed steel rod 2 is tensioned by the tensioning jack 32. When the tensioning jack 32 completes the tensioning of one prestressed steel rod 2, the gear 421 is controlled by the numerical control system of the motor 42 to rotate on the rack 41, thereby driving the tensioning assembly 3 to move to the top of the next prestressed steel rod 2 and tension it.

[0050] In the description of the present utility model, it should be noted that the terms "upper", "lower", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present utility model. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0051] It should be noted that, in the present utility model, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0052] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features of the present invention.

Claims

1. A vertical prestressed steel bar tensioning device, characterized in that: include: Two slide grooves (1), the two slide grooves (1) are arranged at intervals on both sides of the prestressed steel rod (2); A tensioning assembly (3), wherein the tensioning assembly (3) is arranged on the two slide grooves (1); A driving assembly (4), wherein the driving assembly (4) is arranged below the tensioning assembly (3) and is used to drive the tensioning assembly (3) to slide along the length direction of the two slide grooves (1).

2. The vertical prestressed steel bar tensioning device according to claim 1 is characterized in that: The tensioning assembly (3) comprises: A base (31), the base (31) being arranged on the two slide grooves (1), and a circular hole (311) being arranged in the middle of the base (31); A tensioning jack (32), wherein the tensioning jack (32) is arranged on the base (31), and the tensioning jack (32) comprises a connector (321), and the connector (321) passes through the circular hole (311) to tension the prestressed steel rod (2) below the base (31).

3. The vertical prestressed steel bar tensioning device according to claim 2 is characterized in that: The base (31) comprises: There are four supporting legs (312), and one of the supporting legs (312) is provided with a fixing plate (313) for fixing the driving assembly (4).

4. The vertical prestressed steel bar tensioning device according to claim 2 is characterized in that: Two handles (314) are correspondingly provided on both sides of the base (31).

5. The vertical prestressed steel bar tensioning device according to claim 3 is characterized in that: The driving assembly (4) comprises: A rack (41), the rack (41) being arranged below the base (31) and between the two slide grooves (1); A motor (42), wherein the motor (42) is fixed on the fixed plate (313), and the motor (42) comprises a gear (421), wherein the gear (421) rotates along the length direction of the rack (41) and drives the tensioning assembly (3) to slide along the length direction of the two slide grooves (1).

6. The vertical prestressed steel bar tensioning device according to claim 5 is characterized in that: A plurality of connecting rods (11) are provided between the two slide grooves (1), and one end of one of the connecting rods (11) is fixedly connected to one of the slide grooves (1).

7. The vertical prestressed steel bar tensioning device according to claim 6 is characterized in that: The rack (41) is arranged on the plurality of connecting rods (11), and the rack (41) is located on one side of the prestressed steel rod (2) and is parallel to the two slide grooves (1).

8. The vertical prestressed steel bar tensioning device according to claim 7 is characterized in that: The connecting rod (11) and the slide groove (1) are fixedly connected by welding, and the rack (41) and the connecting rod (11) are also fixedly connected by welding.

9. The vertical prestressed steel bar tensioning device according to claim 5, characterized in that: The motor (42) is a digitally controlled motor.

10. The vertical prestressed steel bar tensioning device according to claim 1, characterized in that: The two slide grooves (1), the tensioning assembly (3) and the driving assembly (4) are all made of steel.

Images