Labor-saving tool for moving heavy hydraulic torque wrench
By designing heavy-duty hydraulic torque wrench to move labor-saving tools, using sliding guide rails and electric push rods, the time-consuming and labor-intensive bolt torque inspection of large wind turbines is solved, and efficient and safe bolt torque inspection is achieved.
Patent Information
- Application Number
- CN202422276971.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-14
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-09-14
AI Technical Summary
大型风电机组螺栓力矩检验工作费时费力,液压扳头和套筒重量大,搬动困难,存在体力消耗和安全风险。
A heavy-duty hydraulic pressure torque wrench mobile labor-saving tool is designed, including sliding guide rails, pen-shaped electric push rods and flexible lanyards. The hydraulic wrench and sleeves are easily moved through pulley lifting points and electric push rods, reducing manpower consumption.
It greatly reduces physical strength consumption when checking torque of hydraulic wrench, improves work efficiency, the device is simple in structure, convenient in operation, high in safety, and is suitable for carrying around.
Smart Images
Figure CN223073779U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of wind power generation, and particularly relates to a labor-saving tool for moving a heavy hydraulic torque wrench. Background Technique
[0002] Technical background of bolt torque inspection for wind turbines: A wind turbine is composed of a foundation, a tower barrel, a nacelle, a hub and blades. A large number of bolts are used for connecting each component. Regularly checking whether the bolts are loose is an important task for the daily maintenance of wind turbines.
[0003] Due to the large size of the equipment components of wind turbines, the bolts used are very thick, and the tightening torque is usually above 1000 N. For some large-scale units, the bolt tightening torque can reach 4000 N. It is very difficult to complete this work without the help of professional torque inspection tools. Hydraulic wrenches are usually used to check the bolt torque of large wind turbines. A hydraulic wrench consists of a hydraulic pump, a hydraulic pipe, a hydraulic wrench head and a socket. The hydraulic pump provides pressure, and the pressure is transmitted through the hydraulic pipe to the hydraulic wrench head, pushing the hydraulic cylinder inside the hydraulic wrench head to move, driving the socket connected to the hydraulic wrench head to rotate, and completing the tightening of the bolt torque. By adjusting the pressure output by the hydraulic pump, the size of the tightening torque can be controlled. Compared with traditional manual torque inspection, the hydraulic torque wrench has great advantages, such as high efficiency, good accuracy, and time-saving and labor-saving features, and is widely used in the maintenance work of wind turbines. The commonly used models of hydraulic wrench heads are divided into type 3, type 5, type 15, type 20, etc. according to size. The larger the number, the greater the torque that can be provided, and the heavier the weight of the corresponding hydraulic wrench head. Taking the mainstream 5.0 MW model in the current market as an example, the tower barrel bolts are between M60 and M100 in specification. The self-weight of the 20-type hydraulic wrench head used during torque inspection is 40 kg, and the supporting heavy-duty socket is 10 kg, with a total weight exceeding 50 kg. The operator moves the hydraulic wrench head and the socket to sequentially check the torque of a total of 120 bolts in one circle on the tower barrel connection flange. The workload is huge. The height of some tower barrel connection flanges from the operator's standing platform is up to 1.5 meters. This flange height greatly increases the physical consumption of the operator. At the same time, there is also a risk that the hydraulic wrench head may fall and cause injury during the moving process. This makes the bolt torque inspection work of large wind turbines the most time-consuming project in the regular maintenance operation of wind turbines. Summary of the Invention
[0004] The utility model provides a labor-saving tool for moving a heavy hydraulic torque wrench, which improves the operation efficiency and reduces the physical consumption of maintenance operators.
[0005] To achieve the above object, a labor-saving tool for moving a heavy-duty hydraulic torque wrench according to the utility model comprises a sliding guide rail, the two ends of the sliding guide rail are respectively connected to the telescopic ends of a first push rod and a second push rod, the lower end of the base of the first push rod is fixedly connected to a bracket, and the lower end of the base of the second push rod is slidably connected to a sleeve movable fulcrum; both the first push rod and the second push rod are telescopic push rods; the sliding guide rail comprises a guide rail and a pulley hanging point capable of moving on the guide rail, and the pulley hanging point extends out of the guide rail and is connected to a flexible hanging rope.
[0006] Furthermore, the pulley hanging point comprises a hanging point plate and pulleys fixed on both sides of the hanging point plate.
[0007] Furthermore, the flexible hanging rope is made by crimping a steel wire rope.
[0008] Furthermore, the first push rod and the second push rod are connected to the sliding guide rail through a fixed seat.
[0009] Furthermore, the first push rod and the second push rod are pen-shaped electric push rods.
[0010] Furthermore, the pen-shaped electric push rod comprises a pen-shaped push rod base and a pen-shaped push rod telescopic rod.
[0011] Furthermore, the sleeve movable fulcrum comprises a first sleeve and a second sleeve fixedly connected, the first sleeve is slidably connected to the base of the second push rod, and the inner hole of the second sleeve is regular hexagon.
[0012] Furthermore, a pen-shaped push rod bottom support disc is installed at the lower end of the base of the second push rod, the pen-shaped push rod bottom support disc comprises a bottom disc and a square tube fixedly connected, the square tube is fixedly connected to the base of the second push rod, and the diameter of the bottom disc is larger than the diagonal length of the square tube and smaller than the diameter of the inscribed circle of the second through hole.
[0013] Furthermore, the bracket comprises a horizontal plate and legs fixed at both ends of the horizontal plate.
[0014] Furthermore, expansion bosses are provided at the bottom ends of the legs.
[0015] Compared with the prior art, the utility model has at least the following beneficial technical effects:
[0016] This scheme proposes a labor-saving tool for moving a heavy-duty hydraulic torque wrench for wind power, using this tool can easily move the combination of the hydraulic wrench head and the heavy-duty sleeve on the tower barrel connecting flange, greatly reducing the physical consumption when using the hydraulic wrench to calibrate the torque and improving the work efficiency. The device has a simple structure, convenient operation, good reliability, is portable and effective, and can be carried by the operator.
[0017] Furthermore, the flexible hanging rope is made by crimping a steel wire rope, which has high strength and good safety.
[0018] Further, a pen-shaped push rod bottom support disk is installed at the lower end of the base of the second push rod. The pen-shaped push rod bottom support disk includes a bottom disk and a square tube fixedly connected. The square tube is fixedly connected to the base of the second push rod. The diameter of the bottom disk is greater than the diagonal length of the square tube and less than the diameter of the inscribed circle of the second through hole. When the sleeve movable fulcrum moves to the lowermost end on the pen-shaped push rod base, it can block the sleeve movable fulcrum to prevent the sleeve movable fulcrum from falling off.
[0019] Further, the bracket includes a horizontal plate and legs fixed at both ends of the horizontal plate. The bottom ends of the legs are provided with extended bosses, which increases the contact area between the legs and the bottom surface and increases the stability of the entire tooling. Description of the Drawings
[0020] Figure 1 is a perspective view of a heavy-duty hydraulic torque wrench mobile labor-saving tooling proposed by the present utility model;
[0021] Figure 2 is a front view of a heavy-duty hydraulic torque wrench mobile labor-saving tooling proposed by the present utility model;
[0022] Figure 3 is a three-dimensional schematic diagram of the travel of the heavy-duty hydraulic torque wrench mobile labor-saving tooling proposed by the present utility model and the movable parts;
[0023] Figure 4 is a schematic diagram of the travel of the heavy-duty hydraulic torque wrench mobile labor-saving tooling proposed by the present utility model and the movable parts;
[0024] Figure 5 is a top view schematic diagram of a heavy-duty hydraulic torque wrench mobile labor-saving tooling proposed by the present utility model;
[0025] Figure 6 is a right view schematic diagram of a heavy-duty hydraulic torque wrench mobile labor-saving tooling proposed by the present utility model;
[0026] Figure 7 is a perspective view of the internal structure of a heavy-duty hydraulic torque wrench mobile labor-saving tooling proposed by the present utility model;
[0027] Figure 8 is an enlarged perspective view of the guide rail pulley structure of a heavy-duty hydraulic torque wrench mobile labor-saving tooling proposed by the present utility model;
[0028] Figure 9 is a left view schematic diagram of a heavy-duty hydraulic torque wrench mobile labor-saving tooling proposed by the present utility model;
[0029] Figure 10An enlarged schematic diagram of the guide rail structure of a labor-saving tooling for moving a heavy-duty hydraulic torque wrench proposed by the present utility model;
[0030] Figure 11 A schematic diagram of the preparation for using a labor-saving tooling for moving a heavy-duty hydraulic torque wrench proposed by the present utility model;
[0031] Figure 12 A schematic diagram of lifting the wrench head of a labor-saving tooling for moving a heavy-duty hydraulic torque wrench proposed by the present utility model;
[0032] Figure 13 A schematic diagram of moving the wrench head of a labor-saving tooling for moving a heavy-duty hydraulic torque wrench proposed by the present utility model;
[0033] Figure 14 A schematic diagram of lowering the wrench head of a labor-saving tooling for moving a heavy-duty hydraulic torque wrench proposed by the present utility model;
[0034] Figure 15 A schematic diagram of lifting the tooling of a labor-saving tooling for moving a heavy-duty hydraulic torque wrench proposed by the present utility model;
[0035] Figure 16 A schematic diagram of moving the tooling of a labor-saving tooling for moving a heavy-duty hydraulic torque wrench proposed by the present utility model;
[0036] Figure 17 A schematic diagram of lowering the tooling of a labor-saving tooling for moving a heavy-duty hydraulic torque wrench proposed by the present utility model.
[0037] In the attached drawings: 1 - sliding guide rail, 1.1 - pulley suspension point, 1.2 - flexible hanging rope, 1.3 - fixed seat for pen-shaped electric push rod, 2 - pen-shaped electric push rod, 2.1 - pen-shaped push rod base, 2.2 - pen-shaped push rod telescopic rod, 3 - fixed double-leg bracket, 4 - sleeve movable fulcrum, 4.1 - first sleeve, 4.2 - second sleeve, 5 - hydraulic wrench head, 6 - heavy-duty sleeve, 7 - bottom support plate of pen-shaped push rod, 8 - bolt. Specific embodiments
[0038] The present utility model will be described in detail below in conjunction with the attached drawings and specific embodiments.
[0039] In order to enable those skilled in the art to better understand the technical solutions in the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the attached drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.
[0040] It should be noted that when an element is referred to as being "disposed on" another element, it can be directly on the other element or there can also be another element in the middle. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be another element in the middle at the same time. The orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. used in this article is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present invention.
[0041] Unless otherwise defined, all technical and scientific terms used in this article have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs. The terms used in the description of the present invention in this article are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more of the related listed items.
[0042] The purpose of this solution is to solve the problem of the movement of the hydraulic wrench head. The total weight of the hydraulic wrench head and the socket is more than 40 kilograms, and the position of the bolt to be calibrated is more than 1.5 meters. It is very laborious to manually move the hydraulic wrench head and the socket. Using this device, the hydraulic wrench head can be easily moved from one bolt to the next bolt, greatly saving labor.
[0043] Embodiment 1
[0044] Refer to Figures 1 to 10 , a labor-saving tooling for moving a heavy-duty hydraulic torque wrench, which includes four parts: a sliding guide rail 1, a pen-shaped electric push rod 2, a fixed double-leg bracket 3, and a socket moving fulcrum 4. The weight of the tooling is about 4 catties and it can be moved conveniently.
[0045] The sliding guide rail 1 is composed of a guide rail, a pulley hanging point 1.1, a flexible hanging rope 1.2, and a pen-shaped electric push rod fixing seat 1.3. The guide rail is made of steel, and the cross-sectional structure of the guide rail is an inverted trapezoid with an open slot at the bottom, so that the pulley hanging point 1.1 can move left and right in the guide rail. At the same time, the hanging plate of the pulley hanging point 1.1 can extend out of the guide rail through the open slot, and the flexible hanging rope 1.2 is fixed at the lower end of the fixing plate. Refer to Figure 8 and Figure 10The lifting point pulley 1.1 includes four pulleys arranged in parallel in two rows. The four pulleys are respectively installed on both sides of a fixed plate. The pulley lifting point 1.1 is installed in the sliding guide rail 1 and can slide smoothly along the axial direction of the sliding guide rail 1 inside the sliding guide rail 1. The flexible hanging rope 1.2 is made of steel wire rope crimping, which has the characteristics of high strength and softness. The flexible hanging rope 1.2 is fixedly connected to the hanging point plate of the pulley lifting point 1.1 by bolts, and is used to mount the hydraulic wrench 5 and heavy sleeve 6 fixed together.
[0046] The pen-shaped electric push rod fixing seat 1.3 is made of steel pipe and is welded to the bottom of the left and right ends of the sliding guide rail 1. A through hole is opened on the pipe wall of the pen-shaped electric push rod fixing seat 1.3, and screws can be used to pass through the through hole to fix the pen-shaped electric push rod 2. The pen-shaped electric push rod 2 is composed of a pen-shaped push rod base 2.1 and a pen-shaped push rod telescopic rod 2.2. The overall appearance structure is similar to a pen. After power is turned on, the pen-shaped push rod telescopic rod 2.2 can be lifted up a distance; two pen-shaped electric push rods 2 are symmetrically arranged on both sides of the sliding guide rail 1. The two pen-shaped push rod telescopic rods 2.2 move synchronously. The upper end of the pen-shaped push rod telescopic rod 2.2 is fixed to the pen-shaped electric push rod fixing seat 1.3 with screws, and can drive the sliding guide rail 1 to move up and down after power is turned on.
[0047] The fixed double-leg bracket 3 is made of steel plate, and the overall structure is a door opening type. The fixed double-leg bracket 3 includes a horizontal plate and legs fixed at both ends of the horizontal plate. The two legs are provided with extended bosses at the bottom ends, so that the contact surface with the bottom surface is larger, which increases the stability of the entire tooling. The top of the fixed double-leg bracket 3 is provided with a mounting seat for the pen-shaped electric push rod 2, and the mounting seat is fixed to the pen-shaped push rod base 2.1 by screws.
[0048] The sleeve movable fulcrum 4 is made of stainless steel, meeting the requirements of high strength and light weight. The sleeve movable fulcrum 4 includes a first sleeve 4.1 and a second sleeve 4.2 which are fixedly connected. The second sleeve 4.2 is fixed to the lower part of the first sleeve 4.1. The outer shape of the first sleeve 4.1 is cylindrical. The first sleeve 4.1 is provided with a cylindrical first through hole, and the first through hole communicates with the second through hole. The first sleeve is in clearance fit with the pen-shaped push rod base 2.1, can be sleeved on the pen-shaped push rod base 2.1, and can slide up and down on the pen-shaped push rod base 2.1. The second sleeve 4.2 is provided with a regular hexagonal second through hole adapted to the bolt, and the second through hole can be properly sleeved on the corresponding bolt. The first sleeve 4.1 is sleeved on the pen-shaped push rod base 2.1. A pen-shaped push rod bottom support plate 7 is installed at the bottom of the pen-shaped push rod base 2.1. The pen-shaped push rod bottom support plate 7 is welded by a bottom disc and a square tube. The square tube wall is provided with through holes and can be fixed to the pen-shaped push rod base 2.1 with screws. The diameter of the bottom disc of the pen-shaped push rod bottom support plate 7 is larger than the upper cylinder diameter of the sleeve movable fulcrum 4 and smaller than the inscribed circle diameter of the second through hole, so that when the sleeve movable fulcrum 4 moves to the lowermost end on the pen-shaped push rod base 2.1, it can block the sleeve movable fulcrum 4 and prevent the sleeve movable fulcrum 4 from falling off.
[0049] Embodiment 2
[0050] Referring to Figures 11 to 17 , the using process of the heavy-duty hydraulic torque wrench moving labor-saving tooling (hereinafter referred to as tooling) provided in Embodiment 1 is as follows:
[0051] Place the tooling on the flange to be inspected. At this time, the second sleeve 4.2 is sleeved on a bolt of the flange. Connect the lower end of the flexible hanging rope 1.2 with the hydraulic wrench head 5 to be moved. When it is necessary to move the hydraulic wrench head 5 and the heavy-duty sleeve 6 fixed together, synchronously jack up the two pen-shaped push rod expansion links 2.2 to lift the hydraulic wrench head 5 and the heavy-duty sleeve 6. The operator moves the pulley suspension point 1.1 to the target position, resets the two pen-shaped push rod expansion links 2.2, and lowers the hydraulic wrench head 5 and the heavy-duty sleeve 6 so that the heavy-duty sleeve 6 is sleeved on the next bolt to be inspected. When it is necessary to move the tooling, lift the second sleeve 4.2 to separate it from the bolt, separate the hydraulic wrench head 5 from the flexible hanging rope 1.2, lift the entire tooling and move it in the target direction. After moving to the target position, connect the flexible hanging rope 1.2 with the hydraulic wrench head 5, and move the hydraulic wrench head 5 and the heavy-duty sleeve 6 to the target position by moving the pulley suspension point 1.1 left and right. Repeat this way to check all the torques.
[0052] The term "consisting of" in describing a combination shall include the recited elements, ingredients, components or steps as well as other elements, ingredients, components or steps that do not materially affect the basic novel characteristics of the combination. The use of the terms "comprising" or "including" to describe the combinations of elements, ingredients, components or steps herein also contemplates embodiments consisting essentially of these elements, ingredients, components or steps. By using the term "may" herein, it is intended that any of the attributes described as "may" include are optional.
[0053] A plurality of elements, ingredients, components or steps can be provided by a single integrated element, ingredient, component or step. Alternatively, a single integrated element, ingredient, component or step may be divided into discrete plural elements, ingredients, components or steps. The disclosure of the element, ingredient, component or step as "a" or "an" does not mean to exclude other elements, ingredients, components or steps.
[0054] It should be understood that the above description is for purposes of illustration and not of limitation. Many embodiments and many applications other than the examples provided will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of the present teachings should not be determined with reference to the above description, but should be determined with reference to the full scope of the foregoing claims and the equivalents of those claims. For the sake of completeness, all articles and references including the disclosures of patent applications and patents are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the foregoing claims is not a waiver of that subject matter, nor should it be considered that the applicant has not considered that subject matter to be part of the disclosed utility model subject matter.
Claims
1. A labor-saving tooling for moving a heavy-duty hydraulic torque wrench, characterized in that, It includes a sliding guide rail (1), both ends of the sliding guide rail (1) are respectively connected to the telescopic ends of a first push rod and a second push rod, the lower end of the base of the first push rod is fixedly connected to a bracket, and the lower end of the base of the second push rod is slidably connected to a sleeve movable fulcrum (4); both the first push rod and the second push rod are telescopic push rods; the sliding guide rail (1) includes a guide rail and a pulley hanging point (1.1) capable of moving on the guide rail, and the pulley hanging point (1.1) extends out of the guide rail and is connected to a flexible hanging rope (1.2).
2. The labor-saving tooling for moving a heavy-duty hydraulic torque wrench according to claim 1, wherein The pulley hanging point (1.1) includes a hanging point plate and pulleys fixed on both sides of the hanging point plate.
3. A labor-saving tooling for moving a heavy hydraulic torque wrench according to claim 1, characterized in that, The flexible hanging rope (1.2) is made by crimping a steel wire rope.
4. The mobile labor-saving tooling for a heavy-duty hydraulic torque wrench according to claim 1, wherein, The first push rod and the second push rod are connected to the sliding guide rail (1) through a fixed seat.
5. A labor-saving tooling for moving a heavy-duty hydraulic torque wrench according to claim 1, characterized in that, The first push rod and the second push rod are pen-shaped electric push rods (2).
6. The mobile labor-saving tooling for a heavy-duty hydraulic torque wrench according to claim 5, characterized in that, The pen-shaped electric push rod (2) includes a pen-shaped push rod base (2.1) and a pen-shaped push rod telescopic rod (2.2).
7. A labor-saving tooling for moving a heavy-duty hydraulic torque wrench according to claim 1, characterized in that, The sleeve movable fulcrum (4) includes a first sleeve (4.1) and a second sleeve (4.2) fixedly connected, the first sleeve (4.1) is slidably connected to the base of the second push rod, and the inner hole of the second sleeve (4.2) is regular hexagon-shaped.
8. The labor-saving tooling for moving a heavy-duty hydraulic torque wrench according to claim 7, wherein A pen-shaped push rod bottom support plate (7) is installed at the lower end of the base of the second push rod, and the pen-shaped push rod bottom support plate (7) includes a bottom disc and a square tube fixedly connected, the square tube is fixedly connected to the base of the second push rod, and the diameter of the bottom disc is larger than the diagonal length of the square tube and smaller than the diameter of the inscribed circle of the second through hole.
9. A labor-saving tooling for moving a heavy-duty hydraulic torque wrench according to claim 1, characterized in that, The bracket includes a horizontal plate and legs fixed at both ends of the horizontal plate.
10. A labor-saving tooling for moving a heavy-duty hydraulic torque wrench according to claim 9, characterized in that, The bottom ends of the legs are provided with extended bosses.