Torque constant control device for reinforcing steel bar sleeve

Abstract

The utility model provides a torque constant control device for a steel bar sleeve, and belongs to the technical field of buildings. Comprising a housing; and the driving assembly is arranged in the shell. In the connecting and mounting process of the straight thread rebar sleeve, the driving assembly and the gearbox are arranged, an electric mounting mode is adopted to replace manual operation, and sufficient force can be provided and torque can be accurately controlled through the synergistic effect of the driving assembly and the gearbox; the torque sensor and the torque controller are arranged in the installation process, the torque sensor can directly measure the torsion value of the reinforcing steel bar, the torque controller controls according to data of the sensor, and therefore it is ensured that the torque of each time of connection can reach the specified standard. And when the torque detected by the torque sensor reaches a preset value, the torque controller can automatically stop the operation of the motor, so that the connection quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of construction, in particular to a steel sleeve torque constant control device. Background Art

[0002] A rebar sleeve torque constant control device is a mechanical device specially used to fix the connection between a threaded connector and a sleeve or a workpiece. It is mainly used for the production of cast-in-place pile reinforcement cages, the connection of foundation reinforcements in large-scale infrastructure projects, and the tightening operation of rebar sleeves in large and medium-sized prefabricated components.

[0003] At present, the installation of straight threaded steel bar sleeve connections is done manually, which has low construction efficiency. It is difficult for the installation torque to meet the theoretical requirements at one time, and manual re-tightening is often required. In addition, it is impossible to directly judge the torque of the steel bar tightening in actual construction. Therefore, this application provides a steel bar sleeve torque constant control device to meet the needs. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a steel bar sleeve torque constant control device to solve the problem that the existing straight thread steel bar sleeve connection installation adopts manual installation, the installation torque cannot meet the requirements, and a second re-tightening is required, and the torque of the steel bar tightening cannot be directly judged in actual construction.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A rebar sleeve torque constant control device comprises: a housing; a drive assembly, arranged in the housing; a rotating rod, one end of which is arranged on the drive assembly and the other end passes through the housing; a gearbox, arranged on the rotating rod and connected to the housing, for adjusting the speed and torque ratio of the rotating rod; a torque sensor, arranged on the rotating rod, for monitoring the torque borne by the rotating rod in real time; a torque controller, arranged on the housing, and electrically connected to the torque sensor and the drive assembly; a quick connector, arranged at one end of the rotating rod away from the housing, for quickly connecting and protecting the rotating rod; a rebar quick clamping mechanism, arranged on the quick connector, for different types of rebars to achieve quick clamping.

[0007] The driving assembly includes a motor, which is arranged in the housing and is used to provide a power source.

[0008] It also includes: a reducer, which is arranged in the shell and connected to the output end of the motor. The rotating rod is connected to the reducer to adjust the speed of the motor and increase the torque.

[0009] It also includes: a controller body, which is arranged on the shell, and the torque controller is electrically connected to the drive component for controlling the operation of the drive component.

[0010] The steel bar quick clamping mechanism includes: an installation frame, which is arranged on the quick connecting head, and one end of the installation frame is tooth-shaped; a clamping block, which is rotatably arranged in the installation frame, the clamping block is L-shaped, and one end of the clamping block close to the installation frame is provided with teeth.

[0011] It also includes: a limiting frame, which is arranged on the installation frame; a ratchet rod, one end of which is rotatably arranged in the installation frame and connected to the clamping block, and the other end extends into the limiting frame; a clamping strip, which is rotatably arranged in the limiting frame, and the clamping strip is configured to prevent the ratchet rod from rotating in the opposite direction when in contact with the ratchet rod.

[0012] It also includes: a spring, one end of which is arranged on the clamping strip and the other end is connected to the limiting frame; a pull block, which is arranged on the limiting frame and connected to the clamping strip through a pull rope.

[0013] Compared with the prior art, the present invention has at least the following beneficial effects:

[0014] In the above scheme, during the connection and installation process of the straight threaded steel bar sleeve, a drive component and a gearbox are set up, and an electric installation method is adopted to replace manual operation. The drive component and the gearbox work together to provide sufficient power and accurately control the torque to ensure that the output torque meets the connection requirements of steel bars of different specifications. During the installation process, a torque sensor and a torque controller are equipped. The torque sensor can directly measure the torque value of the steel bar, and the torque controller is controlled according to the sensor data to ensure that the torque of each connection can meet the specified standard. When the torque detected by the torque sensor reaches the preset value, the torque controller will automatically terminate the operation of the motor to ensure the connection quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of a steel sleeve torque constant control device.

[0016] Figure 2 Schematic diagram of the shell structure.

[0017] Figure 3 This is the right side picture of the clamping block structure.

[0018] Figure 4 Schematic diagram of the ratchet lever structure.

[0019] [reference numerals]

[0020] 1. Housing; 2. Drive assembly; 3. Gearbox; 4. Torque sensor; 5. Rotating rod; 6. Quick connector; 7. Steel bar quick clamping mechanism; 8. Torque controller; 9. Controller body; 21. Motor; 22. Reducer; 71. Mounting frame; 72. Limiting frame; 73. Clamping block; 74. Ratchet rod; 75. Pull block; 76. Clip; 77. Spring.

[0021] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the appended claims. DETAILED DESCRIPTION

[0022] The following describes in detail a rebar sleeve torque constant control device provided by the present invention, in conjunction with the accompanying drawings and specific embodiments. It is also noted that, to provide a more detailed description, the following embodiments are optimal and preferred embodiments, and those skilled in the art may employ alternative implementations for certain known technologies. Furthermore, the accompanying drawings are intended only to provide a more detailed description of the embodiments and are not intended to limit the present invention.

[0023] like Figure 1 - Figure 4 As shown, an embodiment of the present invention provides a steel sleeve torque constant control device, comprising: a housing 1; a drive assembly 2, arranged in the housing 1; a rotating rod 5, one end of which is arranged on the drive assembly 2, and the other end passes through the housing 1; a gearbox 3, arranged on the rotating rod 5, and the gearbox 3 is connected to the housing 1, for adjusting the speed and torque ratio of the rotating rod 5; a torque sensor 4, arranged on the rotating rod 5, for real-time monitoring of the torque size borne by the rotating rod 5; a torque controller 8, arranged on the housing 1, and the torque controller 8 is electrically connected to the torque sensor 4 and the drive assembly 2; a quick connector 6, arranged at one end of the rotating rod 5 away from the housing 1, for quickly connecting and protecting the rotating rod 5; a steel bar quick clamping mechanism 7, arranged on the quick connector 6, for different types of steel bars to achieve quick clamping.

[0024] By providing the shell 1 and providing a universal wheel at the bottom of the shell 1, the entire steel sleeve torque constant control device can easily change direction, making it mobile. The shell 1 is small in size and has a universal wheel at the bottom, which greatly enhances its ability to operate in narrow spaces, such as some narrow passages or corners in a prefabricated component production workshop; by providing a quick connector 6, it has the effect of soft connection, which compensates for the misalignment between the output shaft of the reducer 22 and the steel end, protects the rotating rod 5, one end of the quick connector 6 is connected to the rotating rod 5, and the other end is connected to the steel fast clamping mechanism 7. The quick connector 6 can adopt a plum blossom coupling. When there is a misalignment, the quick connector 6 can be connected to the steel fast clamping mechanism 7. The quick connector 6 can be adjusted through the elasticity and deformability of the plum blossom coupling, reducing the risk of damage to the rotating rod 5 due to eccentricity, while ensuring the effective transmission of power; the quick connector 6 can also adopt an elastic sleeve pin coupling, which is composed of an elastic sleeve, a pin and two half-couplings. The elastic sleeve is generally made of elastic materials such as rubber, and is sleeved on the pin. The pin is installed in the corresponding holes of the two half-couplings. When the torque is transmitted, the elastic sleeve will undergo elastic deformation, thereby compensating for the relative displacement between the two shafts, including axial, radial and angular displacement. At the same time, the elastic deformation can also play a role in buffering and shock absorption, and play a certain protective role for the connected equipment.

[0025] The torque value can be set according to the steel bar model. The specific setting values ​​are shown in the table:

[0026] Steel bar diameter (mm) ≤16 18～20 22～25 28～32 36～40 Tightening torque N·M 100 200 260 320 360

[0027] Drive assembly 2 includes a motor 21, housed within housing 1, which provides a power source. Motor 21, acting as a power source for the rebar sleeve torque control device, converts electrical energy into mechanical energy, powering the entire tightening operation. When torque sensor 4 detects that the tightening torque reaches a preset value, torque controller 8 promptly instructs motor 21 to stop, preventing overtightening.

[0028] The invention also includes a reducer 22, which is arranged in the housing 1 and is connected to the output end of the motor 21. The rotating rod 5 is connected to the reducer 22 and is used to adjust the speed of the motor 21 and increase the torque. By setting the reducer 22, its function is to adjust the speed of the motor 21. The reducer 22 can reduce the high speed of the motor 21 to an appropriate value so that the rotation speed of the rotating rod 5 meets the requirements of the tightening operation. For example, for a steel sleeve with a smaller diameter, a lower speed may be required to ensure the accuracy and stability of tightening; while for a steel sleeve with a larger diameter, a slightly higher but still moderate speed may be required. The reducer 22 can flexibly adjust the speed of the rotating rod 5 according to actual needs. At the same time, the reducer 22 can also increase the torque. Through internal gear transmission or other transmission methods, the torque of the motor 21 can be amplified, thereby providing sufficient force for the tightening operation; and cooperate with the rotating rod 5 and the steel bar quick clamping mechanism 7 to output the steel bar in the horizontal direction.

[0029] The motor 21 further comprises a controller body 9, which is disposed on the housing 1, and a torque controller 8 which is electrically connected to the drive assembly 2 and is used to control the operation of the drive assembly 2. By providing the controller body 9, instructions can be sent to the motor 21 to adjust the speed and output power of the motor 21 according to different working requirements.

[0030] The steel bar quick clamping mechanism 7 includes: a mounting frame 71, which is arranged on the quick connector 6, and one end of the mounting frame 71 is tooth-shaped; a clamping block 73, which is rotatably arranged in the mounting frame 71, the clamping block 73 is L-shaped, and the clamping block 73 is provided with teeth at one end close to the mounting frame 71.

[0031] By setting up a steel bar quick clamping mechanism 7, it is adapted to different types of steel bars and realizes quick clamping. One end of the steel bar is clamped in the steel bar quick clamping mechanism 7, and the other end is in various forms, including being cast in concrete / fixed by an artificial clamp-like device. The steel bar quick clamping mechanism 7 can also adopt a wedge-shaped clamping mechanism to fix the steel bar. It is composed of a wedge block and a clamping seat that matches it. The wedge block usually has a certain tilt angle, and the clamping seat has an inclined surface that matches the wedge block. When the steel bar is placed in the clamping seat, the wedge block moves along the inclined surface under external force. Due to the inclined surface of the wedge block, a lateral clamping force is generated on the steel bar. As the wedge block moves further, the clamping force gradually increases, thereby realizing quick clamping of the steel bar. This structure can adapt to steel bars of different diameters by adjusting the moving distance of the wedge block. For steel bars with smaller diameters, the wedge block can achieve clamping by moving a smaller distance; for steel bars with larger diameters, the wedge block needs to move a larger distance to provide sufficient clamping force.

[0032] It also includes: a limiting frame 72, which is arranged on the mounting frame 71; a ratchet rod 74, one end of which is rotatably arranged in the mounting frame 71 and connected to the clamping block 73, and the other end extends into the limiting frame 72; a clamping strip 76, which is rotatably arranged in the limiting frame 72, and the clamping strip 76 is configured to prevent the ratchet rod 74 from rotating in the opposite direction when in contact with the ratchet rod 74.

[0033] When the locking cam 72 is in the unlocked position, the locking cam 72 is in the unlocked position, and the locking cam 72 is in the unlocked position, so that the locking cam 72 is locked.

[0034] The clamping block 73 is further comprised of a spring 77, one end of which is mounted on a clamping bar 76 and the other end of which is connected to the limiting frame 72; and a pull block 75, which is mounted on the limiting frame 72 and connected to the clamping bar 76 via a pull cord. When the ratchet lever 74 needs to rotate in the opposite direction, the pull block 75 is pulled, which drives the clamping bar 76 to rotate via the pull cord, disengaging the clamping bar 76 from the ratchet lever 74, thereby causing the ratchet lever 74 to rotate in the opposite direction, thereby adjusting the angle of the clamping block 73 according to actual needs.

[0035] When the clamping block 73 is adjusted to the desired angle, the pull block 75 is released, and the clamping strip 76 is brought into contact with the ratchet rod 74 to prevent the ratchet rod 74 from rotating in the opposite direction. One end of the steel bar is inserted between the mounting frame 71 and the clamping block 73, and the steel bar is clamped by the friction of the teeth. The controller is used to adjust the clamping block 73 to the desired angle. The main body 9 starts the motor 21, and the power of the motor 21 is transmitted to the rotating rod 5 through the reducer 22, and is decelerated and the torque is increased through the gearbox 3. The rotating rod 5 rotates, driving the quick connector 6 to rotate, thereby causing the steel bar quick clamping mechanism 7 and the steel bar to rotate, and start tightening the sleeve; during the tightening process, the torque sensor 4 monitors the torque size of the rotating rod 5 in real time, and transmits the data to the torque controller 8. When the preset torque value is reached, the torque controller 8 will automatically stop the operation of the motor 21 to ensure that each tightening meets the standard requirements.

[0036] This invention encompasses any alternatives, modifications, equivalents, and solutions that do not depart from the spirit and scope of this invention. While specific details are described in detail in the preferred embodiments of this invention to provide a thorough understanding, those skilled in the art will be able to fully understand this invention without these details. Furthermore, to avoid unnecessary confusion regarding the essence of this invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0037] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A steel sleeve torque constant control device, characterized in that: include: Housing (1); A drive assembly (2) is disposed in the housing (1); a rotating rod (5), one end of which is arranged on the driving assembly (2) and the other end of which passes through the housing (1); a gearbox (3) disposed on the rotating rod (5), the gearbox (3) being connected to the housing (1) and being used to adjust the speed and torque ratio of the rotating rod (5); A torque sensor (4) is provided on the rotating rod (5) and is used to monitor the magnitude of the torque borne by the rotating rod (5) in real time; a torque controller (8) disposed on the housing (1), and the torque controller (8) is electrically connected to the torque sensor (4) and the drive assembly (2); A quick connector (6) is provided at one end of the rotating rod (5) away from the housing (1) and is used for quickly connecting and protecting the rotating rod (5); A steel bar quick clamping mechanism (7) is provided on the quick connector (6) and is used for steel bars of different types to achieve quick clamping.

2. A steel sleeve torque constant control device according to claim 1, characterized in that: The driving assembly (2) comprises: The motor (21) is arranged in the housing (1) and is used to provide a power source.

3. A steel sleeve torque constant control device according to claim 2, characterized in that: Also includes: A reducer (22) is arranged in the housing (1), and the reducer (22) is connected to the output end of the motor (21). The rotating rod (5) is connected to the reducer (22) and is used to adjust the rotation speed of the motor (21) and increase the torque.

4. A steel sleeve torque constant control device according to claim 1, characterized in that: Also includes: The controller body (9) is arranged on the housing (1), and the torque controller (8) is electrically connected to the drive assembly (2) for controlling the operation of the drive assembly (2).

5. A steel sleeve torque constant control device according to claim 1, characterized in that: The steel bar quick clamping mechanism (7) comprises: A mounting frame (71) is arranged on the quick connector (6), and one end of the mounting frame (71) is tooth-shaped; The clamping block (73) is rotatably arranged in the installation frame (71), the clamping block (73) is L-shaped, and one end of the clamping block (73) close to the installation frame (71) is provided with teeth.

6. A steel sleeve torque constant control device according to claim 5, characterized in that: Also includes: a limiting frame (72), arranged on the mounting frame (71); a ratchet rod (74), one end of which is rotatably disposed in the mounting frame (71) and connected to the clamping block (73), and the other end of which extends into the limiting frame (72); A clamping bar (76) is rotatably arranged in the limiting frame (72), and the clamping bar (76) is configured to prevent the ratchet rod (74) from rotating in the opposite direction when in contact with the ratchet rod (74).

7. A steel sleeve torque constant control device according to claim 6, characterized in that: Also includes: a spring (77), one end of which is arranged on the clamping strip (76) and the other end of which is connected to the limiting frame (72); A pull block (75) is provided on the limiting frame (72) and is connected to the clamping strip (76) via a pull rope.

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