Double Hook Line Tensioner Inspection, Maintenance, and Testing Equipment and Usage Method

Abstract

The present invention relates to an inspection, maintenance and testing device for a double-hook tensioner and a method for using the same, comprising a frame, a fixing device and a lead screw rotating device, wherein a platform is mounted on the frame, the fixing device is fixedly mounted on the platform, two lead screw rotating devices are symmetrically mounted on the platform on the left and right sides of the lead screw rotating device, wire brushes and oil spray nozzles are sequentially mounted on the left and right sides of the fixing device, and track grooves are horizontally mounted on the platform and on the left and right sides of the fixing device; the lead screw rotating device comprises a moving seat and a horizontally placed hydraulic oil cylinder which are sequentially arranged from the inside to the outside, an external connecting block is mounted on the outer end of the moving seat, the external connecting block is connected to the piston rod of the hydraulic oil cylinder via a tension sensor, a roller is mounted on the lower end of the moving seat, the roller is located in the track groove, a motor and a reducer which are sequentially connected are mounted on the moving seat, and the output shaft of the reducer is mounted with the internal connecting block, the device realizes the integrated operation of the inspection, maintenance and testing of the double-hook tensioner, and improves the efficiency and quality of the inspection, maintenance and testing of the double-hook tensioner.

Description

Technical Field

[0001] The invention relates to a double-hook tensioner inspection and maintenance test device and a use method thereof, belonging to the technical field of power transmission and transformation construction. Background Art

[0002] The double hook tensioner is a tool used to tighten the wire, adjust the position of equipment or instruments, replace insulators or other equipment during the construction of the line. It includes components such as a rod sleeve, a screw rod and a ratchet assembly. During the use of the double hook tensioner, impurities will be attached to the surface of the screw rod, and rust will also occur, which will affect the normal use of the double hook tensioner and reduce its service life. According to the "Preventive Test Regulations for Small Construction Machinery and Tools for Power Operations", the double hook tensioner must undergo corresponding mechanical tests every year before it can continue to be used. At present, the inspection and maintenance of the double hook tensioner mainly relies on manually unscrewing the screw rod of the double hook tensioner out of the rod sleeve to check whether the thread fit between the screw rod and the rod sleeve is intact, and oiling and maintaining the screw rod. Relying on manual unscrewing of the screw rod of the double hook tensioner out of the rod sleeve is labor-intensive and inefficient. Manual oiling and maintenance of the screw rod has the problem of uneven oiling, and it also does not have the function of mechanical testing. Summary of the invention

[0003] The purpose of the present invention is to provide a double-hook tensioner inspection and maintenance test device and a use method in view of the above shortcomings.

[0004] The solution adopted by the present invention to solve the technical problem is a double hook tensioner inspection and maintenance test device, comprising a frame, a fixing device, and a screw rotating device, wherein a platform is installed on the upper surface of the frame, the fixing device is fixedly installed on the platform, and two screw rotating devices are symmetrically installed on the platform on the left and right sides of the screw rotating device;

[0005] The fixing device comprises two pipe bench vises symmetrically installed on the platform, the two pipe bench vises are used to fix the two ends of the rod sleeve of the double hook tensioner, and a wire brush and an oil spray nozzle are installed in sequence from the inside to the outside on the side of the pipe bench vise, and the wire brush is located on the outside of the rod sleeve of the double hook tensioner. Track grooves are installed on the platform and on the left and right sides of the fixing device in a horizontal direction;

[0006] The screw rotating device includes a moving seat arranged in sequence from the inside to the outside, an external connecting block is installed at the outer end of the moving seat, a hydraulic cylinder is installed horizontally on the platform on the outside of one of the screw rotating devices, the external connecting block on the same side of the hydraulic cylinder is connected to the end of the piston rod of the hydraulic cylinder via a tension sensor, the tension sensor is electrically connected to the PC via a wire, a roller is installed at the lower end of the moving seat, the roller is located in the track groove, a motor and a reducer are installed on the moving seat, the output shaft of the motor is connected to the input shaft of the reducer for transmission, the output shaft of the reducer is installed with an internal connecting block for connecting the hook of the outer end of the screw of the double-hook tensioner, and the hook is hooked and connected to the internal connecting block.

[0007] Furthermore, an oil cylinder bracket is installed on the platform, and the hydraulic oil cylinder is fixedly installed on the oil cylinder bracket.

[0008] Furthermore, a protective cover is installed on the movable seat to cover the motor and the reducer.

[0009] A method for inspecting and maintaining a double-hook tensioner comprises the following steps:

[0010] (1) Installation: Install the double-hook tensioner on the fixing device, and connect the hooks at both ends of the double-hook tensioner to the inner connecting blocks of the screw rotating device on the same side;

[0011] (2) Maintenance: Start the motor, which drives the reducer to rotate, and then rotate the screw rod of the double hook tensioner out of the rod sleeve through the inner connecting block. The screw rod rotates out and pushes the moving seat to move outward. The moving seat slides on the guide rail groove through the roller. The wire brush cleans the impurities on the surface of the screw rod. The oil spray nozzle evenly sprays oil on the screw rod for maintenance. The screw rod is rotated straight out of the rod sleeve.

[0012] (3) Tension test: Push the moving seat inward to make the end of the screw rod enter the rod sleeve. Then, start the motor, which drives the reducer to rotate in the opposite direction to make the screw rod screw into the rod sleeve. When the length of the screw rod screwed into the rod sleeve is one-third of the length of the screw rod, turn off the motor, and then connect the external connection block of the moving seat on the same side of the hydraulic cylinder to the end of the piston rod of the hydraulic cylinder through the tension sensor. The external connection of the moving seat on the other side is connected and fixed to the frame through the shackle. Start the hydraulic cylinder and apply force to the test force value specified by the double hook tensioner. During this process, the garbage sensor transmits the test force value to the PC in real time. The PC displays the test force value in real time and saves it for archiving.

[0013] Compared with the prior art, the present invention has the following beneficial effects: simple structure, reasonable design, easy operation and use, the screw rod of the double-hook tensioner can be screwed out of the rod sleeve, and the screw rod can be cleaned and oiled, and at the same time, the mechanical test of the double-hook tensioner can be performed, realizing the integrated operation of the inspection, maintenance and test of the double-hook tensioner, saving manpower and material resources, and improving the efficiency and quality of the inspection, maintenance and test work of the double-hook tensioner. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention is further described below in conjunction with the accompanying drawings.

[0015] Figure 1 It is a structural schematic diagram of the device in a tension test state. DETAILED DESCRIPTION

[0016] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0017] In the figure: 1. PC; 2. Hydraulic cylinder; 3. Cylinder bracket; 4. Piston rod connector; 5. Tension sensor; 6. Motor; 7. Moving seat; 8. Speed ​​reducer; 9. Inner connecting block; 10. Injection nozzle; 11. Double hook tensioner; 12. Pipe bench vise; 13. Wire brush; 14. Hook; 15. Frame; 16. Roller; 17. Track groove; 18. Outer connecting block.

[0018] like Figure 1 A double hook tensioner inspection and maintenance test device is shown, comprising a frame, a fixing device, and a screw rotating device. A platform is installed on the upper surface of the frame, the fixing device is fixedly installed on the platform, and two screw rotating devices are symmetrically installed on the left and right sides of the screw rotating device on the platform;

[0019] The fixing device comprises two pipe bench vises symmetrically installed on the platform, the two pipe bench vises are used to fix the two ends of the rod sleeve of the double hook tensioner, and a wire brush and an oil spray nozzle are installed in sequence from the inside to the outside on the side of the pipe bench vise, the oil spray nozzle performs oil spray maintenance on the threaded part of the screw rod of the double hook tensioner screwed out, and the wire brush can clean the impurities on the surface of the screw rod that is screwed out of the rod sleeve, the wire brush is located on the outside of the rod sleeve of the double hook tensioner, and a track groove is installed horizontally on the platform and the left and right sides of the fixing device;

[0020] The screw rotating device includes a moving seat arranged in sequence from the inside to the outside, an external connecting block is installed at the outer end of the moving seat, a hydraulic cylinder is installed horizontally on the platform on the outside of one of the screw rotating devices, the external connecting block on the same side of the hydraulic cylinder is connected to the end of the piston rod of the hydraulic cylinder via a tension sensor, the tension sensor is electrically connected to the PC via a wire, the PC can record and save the force value of the tension sensor, a roller is installed at the lower end of the moving seat, the roller is located in the track groove, a motor and a reducer are installed on the moving seat, the output shaft of the motor is connected to the input shaft of the reducer for transmission, the output shaft of the reducer is installed with an internal connecting block for connecting the hook of the outer end of the screw of the double-hook tensioner, and the hook is hooked and connected to the internal connecting block.

[0021] In this embodiment, a cylinder bracket is installed on the platform, and the hydraulic cylinder is fixedly installed on the cylinder bracket.

[0022] In this embodiment, a protective cover is installed on the movable seat, which covers the motor and the reducer.

[0023] In this embodiment, the motor is connected to an external power source via a wire.

[0024] A method for inspecting and maintaining a double-hook tensioner comprises the following steps:

[0025] (1) Installation: Install the double-hook tensioner on the fixing device, and connect the hooks at both ends of the double-hook tensioner to the inner connecting blocks of the screw rotating device on the same side;

[0026] (2) Maintenance: Start the motor, which drives the reducer to rotate, and then rotate the screw rod of the double hook tensioner out of the rod sleeve through the inner connecting block. The screw rod rotates out and pushes the moving seat to move outward. The moving seat slides on the guide rail groove through the roller. The wire brush cleans the impurities on the surface of the screw rod. The oil spray nozzle evenly sprays oil on the screw rod for maintenance. The screw rod is rotated straight out of the rod sleeve.

[0027] (3) Tension test: Push the moving seat inward to make the end of the screw rod enter the rod sleeve. Then, start the motor, which drives the reducer to rotate in the opposite direction to make the screw rod screw into the rod sleeve. When the length of the screw rod screwed into the rod sleeve is one-third of the length of the screw rod, turn off the motor, and then connect the external connection block of the moving seat on the same side of the hydraulic cylinder to the end of the piston rod of the hydraulic cylinder through the tension sensor. The external connection of the moving seat on the other side is connected and fixed to the frame through the shackle. Start the hydraulic cylinder and apply force to the test force value specified by the double hook tensioner. During this process, the garbage sensor transmits the test force value to the PC in real time. The PC displays the test force value in real time and saves it for archiving.

[0028] In step (2), when the screw rod is screwed out of the rod sleeve, it can be checked whether the thread fit between the screw rod and the rod sleeve is intact and whether the screw rod can be screwed out of the rod sleeve smoothly.

[0029] If this patent discloses or involves components or structural parts that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connected by bolts or screws), or as: a non-detachable fixed connection (for example, riveting, welding). Of course, the fixed connection can also be replaced by an integrated structure (for example, manufactured by a casting process) (except when it is obviously impossible to use an integrated forming process).

[0030] In the description of this patent, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing this patent, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this patent.

[0031] The preferred embodiments listed above further illustrate the objectives, technical solutions and advantages of the present invention in detail. It should be understood that 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 principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A double hook tensioner inspection and maintenance test device, characterized in that: It includes a frame, a fixing device, and a screw rotating device. A platform is installed on the upper surface of the frame, the fixing device is fixedly installed on the platform, and two screw rotating devices are symmetrically installed on the platform on the left and right sides of the screw rotating device; The fixing device comprises two pipe bench vises symmetrically installed on the platform, the two pipe bench vises are used to fix the two ends of the rod sleeve of the double hook tensioner, and a wire brush and an oil spray nozzle are installed in sequence from the inside to the outside on the side of the pipe bench vise, and the wire brush is located on the outside of the rod sleeve of the double hook tensioner. Track grooves are installed on the platform and on the left and right sides of the fixing device in a horizontal direction; The screw rotating device includes a moving seat arranged in sequence from the inside to the outside, an external connecting block is installed at the outer end of the moving seat, a hydraulic cylinder is installed horizontally on the platform on the outside of one of the screw rotating devices, the external connecting block on the same side of the hydraulic cylinder is connected to the end of the piston rod of the hydraulic cylinder via a tension sensor, the tension sensor is electrically connected to the PC via a wire, a roller is installed at the lower end of the moving seat, the roller is located in the track groove, a motor and a reducer are installed on the moving seat, the output shaft of the motor is connected to the input shaft of the reducer for transmission, the output shaft of the reducer is installed with an internal connecting block for connecting the hook of the outer end of the screw of the double-hook tensioner, and the hook is hooked and connected with the internal connecting block; an oil cylinder bracket is installed on the platform, and the hydraulic oil cylinder is fixedly installed on the oil cylinder bracket; a protective cover with the motor and reducer cover inside is installed on the moving seat.

2. A method for inspecting and maintaining a double-hook tensioner, using the double-hook tensioner inspection and maintenance test device as claimed in claim 1, characterized in that: The following steps are involved: (1) Installation: Install the double-hook tensioner on the fixing device, and connect the hooks at both ends of the double-hook tensioner to the inner connecting blocks of the screw rotating device on the same side; (2) Maintenance: Start the motor, which drives the reducer to rotate, and then rotate the screw rod of the double hook tensioner out of the rod sleeve through the inner connecting block. The screw rod rotates out and pushes the moving seat to move outward. The moving seat slides on the guide rail groove through the roller. The wire brush cleans the impurities on the surface of the screw rod. The oil spray nozzle evenly sprays oil on the screw rod for maintenance. The screw rod is rotated straight out of the rod sleeve. (3) Tension test: Push the moving seat inward to make the end of the screw rod enter the rod sleeve. Then, start the motor, which drives the reducer to rotate in the opposite direction to make the screw rod screw into the rod sleeve. When the length of the screw rod screwed into the rod sleeve is one-third of the length of the screw rod, turn off the motor, and then connect the external connection block of the moving seat on the same side of the hydraulic cylinder to the end of the piston rod of the hydraulic cylinder through the tension sensor. The external connection of the moving seat on the other side is connected and fixed to the frame through the shackle. Start the hydraulic cylinder and apply force to the test force value specified by the double hook tensioner. During this process, the garbage sensor transmits the test force value to the PC in real time. The PC displays the test force value in real time and saves it for archiving.

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