A self-tightening torque detection tool capable of docking equipment

Abstract

The utility model relates to a self-tightening torque detection tool for docking equipment, comprising: a tensioning sleeve and a tensioning shaft. The tensioning sleeve is sleeved on the outside along the central axis of the tensioning shaft. The tensioning shaft is slidably connected to the tensioning sleeve. A square head is sleeved on the outside of one end of the tensioning shaft. The square head is detachably connected to the tensioning shaft. A cloth groove structure is arranged around the outer side of the tensioning sleeve. The tensioning sleeve is connected to an external rotating part. The cloth groove structure is detachably connected to the rotating part. A thread pair is arranged inside the tensioning sleeve. The tensioning shaft is connected to the tensioning sleeve through the thread pair. The aperture of the bottom end of the tensioning sleeve is smaller than the diameter of the central hole of the rotating part. A groove structure is formed between the end of the tensioning shaft and the bottom end of the tensioning sleeve. The thread pair is rotated to make the tensioning shaft produce axial displacement, so that the conical surface of the tensioning shaft fits the tensioning sleeve, and the tensioning sleeve produces a tensioning force. The reverse thread rotates in the opposite direction to the external workpiece. During the measurement process, the greater the rotational torque, the greater the tensioning amount, so as to prevent slippage. The square head can be docked with the detection equipment, and can also be docked with the torque wrench by using the protrusion.

Description

Technical Field

[0001] The utility model relates to the technical field of a reducer assembly and a gearbox mechanical assembly, and in particular to a self-tensioning torque detection tool capable of docking equipment. Background Art

[0002] In the mechanical assembly industry, after the hole-shaft matching, bearing installation, and gear meshing operations are completed, the assembly quality is usually evaluated to see whether the rotating parts are stuck during the rotation process, and whether the resistance torque of uniform rotation (mainly from bearing preload, hole-shaft pair friction, and gear pair meshing torque) is within the design expectations to prevent the assembly from being too loose, causing abnormal noise and shaft system shaking; the assembly is too tight, causing the shaft system and bearings to overheat during rotation and burn out. However, in the actual measurement process, the rotating parts need to be docked with the torque detection tool or equipment, which is usually difficult to achieve, or the adapter tool is difficult to clamp and disassembly is inconvenient, so they can only be docked with the equipment or tools.

[0003] The utility model uses a thread pair and a cone surface structure for self-tensioning, thereby effectively clamping a rotating part with a circular inner hole, facilitating clamping or disassembly, and effectively preventing sliding during the rotation process. Utility Model Content

[0004] Based on the above description, the utility model provides a self-tightening torque detection tooling that can be docked with equipment to solve the problem of clamping rotating parts with circular inner holes, which is convenient for clamping or disassembly and effectively prevents sliding during the rotation process.

[0005] The technical solution of the utility model for solving the above-mentioned technical problems is as follows: a self-tensioning torque detection tooling for docking equipment, comprising: a tensioning sleeve and a tensioning shaft, the tensioning sleeve is sleeved on the outside along the central axis of the tensioning shaft, the tensioning shaft is slidably connected to the tensioning sleeve, a square head is sleeved on the outside of one end of the tensioning shaft, the square head is detachably connected to the tensioning shaft, a groove structure is arranged around the outer side of the tensioning sleeve, the tensioning sleeve is connected to an external rotating member, the groove structure is detachably connected to the rotating member, a threaded pair is arranged inside the tensioning sleeve, the tensioning shaft is connected to the tensioning sleeve through the threaded pair, the aperture of the bottom end of the tensioning sleeve is smaller than the diameter of the center hole of the rotating member, and the end of the tensioning shaft and the bottom end of the tensioning sleeve form a groove structure.

[0006] On the basis of the above technical solution, the present invention can also be improved as follows.

[0007] Furthermore, the square head is a square cylindrical structure, the outer wall of the square head is symmetrically provided with a first through hole, the square head is sleeved on the outside of the tensioning shaft, and a positioning pin is provided between the square head and the tensioning shaft; the two ends of the positioning pin are conical cylinders, the middle part is a cylinder, and the positioning pin is an integrated structure.

[0008] Furthermore, one end of the positioning pin extends to the outside of one side of the tensioning shaft, and both ends of the positioning pin are shorter than the outer surfaces of both sides of the square head.

[0009] Furthermore, the thread pair is provided with a reverse thread, and the tensioning shaft is reversely locked with the tensioning sleeve through the reverse thread.

[0010] Furthermore, a first hole is provided at the bottom end of the tension sleeve, and a second hole is provided at the head end of the tension sleeve. The first hole is connected to the second hole, and the first hole extends obliquely toward the center of the tension sleeve, and the aperture of the first hole at the middle position is smaller than the aperture of the first hole at the bottom end of the tension sleeve.

[0011] Furthermore, the tensioning shaft is provided with a multi-section structure, the diameter of the bottom end of the tensioning shaft is larger than the diameter of the middle part of the tensioning shaft, the diameter of the bottom end of the tensioning shaft is adapted to the diameter of the first hole, and the diameter of the middle part of the tensioning shaft is adapted to the diameter of the second hole.

[0012] Furthermore, the tension sleeve is an integrated structure, and a plurality of second through holes are provided on the tension sleeve, and the second through holes are evenly arranged along the axis of the tension sleeve.

[0013] Furthermore, a protrusion is provided at the front end of the tensioning shaft, and the protrusion is a polygonal column structure, and a torque wrench is connected to one side of the protrusion.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0015] 1. The detection tooling is provided with a thread pair, and the thread pair is rotated to cause the tensioning shaft to produce axial displacement, and the conical surface of the tensioning shaft fits the tensioning sleeve, and the tensioning sleeve is tightened to clamp the workpiece.

[0016] 2. The detection tool adopts reverse thread on the thread pair, which is opposite to the rotation direction of the external workpiece. During the measurement process, the greater the rotation torque, the greater the tightening amount, which prevents slippage.

[0017] 3. The detection tooling is provided with a square head, which can be connected with the detection equipment, and can also use the projection of the tensioning shaft to connect with the torque wrench. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional structural schematic diagram of a self-tightening torque detection tooling capable of docking equipment provided by an embodiment of the utility model;

[0019] Figure 2 A schematic diagram of the right side structure of a self-tightening torque detection tooling capable of docking equipment provided by an embodiment of the utility model;

[0020] Figure 3 A schematic diagram of the left side structure of a self-tightening torque detection tooling capable of docking equipment provided by an embodiment of the utility model;

[0021] Figure 4 A schematic diagram of the structure from a first perspective of a self-tightening torque detection tooling capable of docking equipment provided by an embodiment of the utility model;

[0022] Figure 5 for Figure 4 Schematic diagram of the structure along AA;

[0023] Figure 6 A schematic diagram of the structure from a second perspective of a self-tightening torque detection tooling capable of docking equipment provided by an embodiment of the utility model;

[0024] Figure 7 for Figure 6 Schematic diagram of the structure along BB.

[0025] 1. Tensioning sleeve; 11. Groove structure; 12. First hole; 13. Second hole; 14. Second through hole; 2. Tensioning shaft; 21. Protrusion; 3. Square head; 31. First through hole; 4. Positioning pin. DETAILED DESCRIPTION

[0026] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0028] When used herein, the singular forms "a", "an" and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0029] See also Figure 1-7 The utility model provides a technical solution: a self-tensioning torque detection tooling capable of docking equipment, comprising: a tensioning sleeve 1, a tensioning shaft 2;

[0030] The tensioning sleeve 1 is sleeved on the outside of the tensioning shaft 2 along the central axis of the tensioning shaft 2, and the tensioning shaft 2 is slidably connected to the tensioning sleeve 1. A square head 3 is sleeved on the outside of one end of the tensioning shaft 2, and the square head 3 is detachably connected to the tensioning shaft 2. A groove structure 11 is arranged around the outer side of the tensioning sleeve 1, and the tensioning sleeve 1 is connected to an external rotating part, and the groove structure 11 is detachably connected to the rotating part. A threaded pair is arranged inside the tensioning sleeve 1, and the tensioning shaft 2 is connected to the tensioning sleeve 1 through the threaded pair. The aperture of the bottom end of the tensioning sleeve 1 is smaller than the diameter of the center hole of the rotating part, and the end of the tensioning shaft 2 and the bottom end of the tensioning sleeve 1 form a groove structure.

[0031] It should be noted that the groove structure 11 is a plurality of grooves evenly arranged along the axis of the tension sleeve 1, which is conducive to fixing the tension sleeve with a special tool; the front end here refers to the end close to the square head 3, and the bottom end is the end away from the square head 3.

[0032] That is to say, the bottom of the tension sleeve 1 is inserted into the central hole of the rotating part, and the circular size of the bottom of the tension sleeve 1 is slightly smaller than the diameter of the central hole of the rotating part. After being inserted, the circular size of the external limit baffle is larger than the diameter of the central hole of the rotating part. When the external limit baffle is flush with the end surface of the central hole of the rotating part, the tension sleeve 1 is in place. A detection tool that uses the central circular hole of the rotating part for positioning and clamping, and measures the uniform rotation torque, thereby evaluating whether the shaft system and bearing installation are good during the assembly of the rotating part.

[0033] Specifically, the square head 3 is a square cylindrical structure, the outer wall of the square head 3 is symmetrically provided with a first through hole 31, the square head 3 is sleeved on the outside of the tensioning shaft 2, and a positioning pin 4 is provided between the square head 3 and the tensioning shaft 2; the two ends of the positioning pin 4 are conical cylinders, the middle part is a cylinder, and the positioning pin 4 is an integrated structure.

[0034] That is to say, the detection tool or equipment is docked with the square head 3, and the detection tooling is rotated, and the tooling drives the rotating part. Since the tensioning shaft 2 and the tensioning sleeve 1 adopt a reverse wire structure, during the rotation process, the rotating shaft is further screwed in, and the tensioning sleeve 1 is further tightened, thereby preventing sliding during the rotation process.

[0035] Preferably, one end of the positioning pin 4 extends to the outside of one side of the tensioning shaft 2 , and both ends of the positioning pin 4 are shorter than the outer surfaces of both sides of the square head 3 .

[0036] Preferably, the thread pair is provided with a reverse thread, and the tensioning shaft 2 is reversely locked with the tensioning sleeve 1 through the reverse thread.

[0037] That is to say, the thread pair uses a reverse thread, which is opposite to the workpiece rotation direction. During the measurement process, the greater the rotation torque, the greater the tension, to prevent slippage. The thread pair is rotated to cause the tensioning shaft 2 to produce axial displacement, and the conical surface of the tensioning shaft 2 fits the tensioning sleeve 1, and the tensioning sleeve 1 is tightened to clamp the workpiece.

[0038] A first hole 12 is provided at the bottom end of the tension sleeve 1, and a second hole 13 is provided at the head of the tension sleeve 1. The first hole 12 is connected to the second hole 13, and the first hole 12 extends obliquely toward the center of the tension sleeve 1, and the aperture of the middle position of the first hole 12 is smaller than the aperture of the first hole 12 at the bottom end of the tension sleeve 1.

[0039] The tensioning shaft 2 is provided with a multi-section structure, the diameter of the bottom end of the tensioning shaft 2 is larger than the diameter of the middle part of the tensioning shaft 2 , the diameter of the bottom end of the tensioning shaft 2 is adapted to the diameter of the first hole 12 , and the diameter of the middle part of the tensioning shaft 2 is adapted to the diameter of the second hole 13 .

[0040] Specifically, the tension sleeve 1 is an integrated structure, and a plurality of second through holes 14 are provided on the tension sleeve 1 . The second through holes 14 are evenly arranged along the axis of the tension sleeve 1 .

[0041] It should be noted that the second through hole 14 is provided with a plurality of holes, and some of the second through holes 14 are connected to the groove structure 11. At this time, the second through hole 14 on the tension sleeve 1 is fixed by a special tool, and the square head 3 is rotated. Since the square head 3 is connected to the tension shaft 2, the tension shaft 2 rotates. Since the thread pair is provided between the tension shaft 2 and the tension sleeve 1, the tension shaft 2 generates an axial displacement of screwing in, and the conical surface of the tension shaft 2 fits and extrude with the tension sleeve 1. The tension sleeve 1 is made of spring steel, and the bottom is a thin-walled circumferentially uniformly distributed groove structure 11. The tension sleeve 1 generates a diameter deformation, fits tightly with the center hole of the rotating part, generates pressure, and generates friction between the surfaces, thereby driving the rotation.

[0042] Preferably, a protrusion 21 is provided at the front end of the tensioning shaft 2 , and the protrusion 21 is a polygonal column structure, and a torque wrench is connected to one side of the protrusion 21 .

[0043] It should be noted that the square head 3 adopts a standard size of 1 inch, and can be connected to a detection device, and can also be connected to a torque wrench using the protrusion 21.

[0044] The utility model also provides a specific embodiment, and its actual operation principle is as follows:

[0045] First, insert the bottom of the tension sleeve 1 into the center hole of the rotating part. The bottom circle size of the tension sleeve 1 is slightly smaller than the center hole diameter. After it is inserted, the circle size of the limit baffle is larger than the center hole diameter. When the limit baffle is flush with the end surface of the center hole, the tension sleeve 1 is in place.

[0046] At this time, a special tool is used to fix the second through hole 14 on the tension sleeve 1, and the square head 3 is rotated. Since the square head 3 is connected to the tension shaft 2, the tension shaft 2 rotates. Since there is a threaded pair between the tension shaft 2 and the tension sleeve 1, the tension shaft 2 produces an axial displacement of screwing in, and the conical surface of the tension shaft 2 fits and squeezes the tension sleeve 1. Since the tension sleeve 1 is made of spring steel and has a thin-walled circumferentially uniformly distributed groove structure 11 at the bottom, the tension sleeve 1 produces a diameter deformation, fits tightly with the center hole of the rotating part, generates pressure, and generates friction between the surfaces, thereby driving the rotation;

[0047] Then, the detection tool or equipment is docked with the square head 3, and the detection fixture is rotated. The fixture drives the rotating part. Since the tensioning shaft 2 and the tensioning sleeve 1 adopt a reverse wire structure, during the rotation process, the rotating shaft is further screwed in, and the tensioning sleeve 1 is further tightened, thereby preventing sliding during the rotation process;

[0048] The rotational torque is transmitted to the detection tooling or equipment, the actual torque is detected and judged, the detection is completed, and the reaction hole is clamped with a special tooling, the tensioning shaft 2 is screwed out, the tensioning shaft 2 is screwed out, the tensioning sleeve 1 restores its deformation, the tensioning sleeve 1 is separated from the center hole of the rotating part, and the tooling is removed.

[0049] In summary, the detection tooling sets a thread pair, and utilizes the rotation of the thread pair to cause the tensioning shaft 2 to produce axial displacement, and the conical surface of the tensioning shaft 2 fits the tensioning sleeve 1, and the tensioning sleeve 1 is tightened to clamp the workpiece; by using a reverse thread on the thread pair, the rotation direction is opposite to that of the external workpiece, and the greater the rotational torque during the measurement process, the greater the tensioning amount, to prevent slippage; by setting a square head 3, the square head 3 can be docked with the detection equipment, and the protrusion 21 of the tensioning shaft 2 can also be used to dock with the torque wrench.

[0050] 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 self-tightening torque detection tool for docking equipment, characterized in that: include: A tensioning sleeve and a tensioning shaft, wherein the tensioning sleeve is sleeved on the outside along the central axis of the tensioning shaft, the tensioning shaft is slidably connected to the tensioning sleeve, a square head is sleeved on the outside of one end of the tensioning shaft, the square head is detachably connected to the tensioning shaft, a groove structure is arranged around the outside of the tensioning sleeve, the tensioning sleeve is connected to an external rotating part, the groove structure is detachably connected to the rotating part, a threaded pair is arranged inside the tensioning sleeve, the tensioning shaft is connected to the tensioning sleeve through the threaded pair, the aperture of the bottom end of the tensioning sleeve is smaller than the diameter of the center hole of the rotating part, and the end of the tensioning shaft and the bottom end of the tensioning sleeve form a groove structure.

2. The self-tightening torque detection tool for dockable equipment according to claim 1, characterized in that: The square head is a square cylindrical structure, the outer wall of the square head is symmetrically provided with a first through hole, the square head is sleeved on the outside of the tensioning shaft, and a positioning pin is provided between the square head and the tensioning shaft; the two ends of the positioning pin are conical cylinders, the middle part is a cylinder, and the positioning pin is an integrated structure.

3. The self-tightening torque detection tool for dockable equipment according to claim 2, characterized in that: One end of the positioning pin extends to the outside of one side of the tensioning shaft, and both ends of the positioning pin are shorter than the outer surfaces of both sides of the square head.

4. The self-tightening torque detection tool for dockable equipment according to claim 1, characterized in that: The thread pair is provided with a reverse thread, and the tensioning shaft is reversely locked with the tensioning sleeve through the reverse thread.

5. The self-tightening torque detection tool for dockable equipment according to claim 1, characterized in that: The bottom end of the tension sleeve is provided with a first hole, and the head of the tension sleeve is provided with a second hole. The first hole is connected to the second hole, and the first hole extends obliquely toward the center of the tension sleeve. The aperture of the middle position of the first hole is smaller than the aperture of the first hole at the bottom end of the tension sleeve.

6. The self-tightening torque detection tool for dockable equipment according to claim 5, characterized in that: The tensioning shaft is provided with a multi-section structure, the diameter of the bottom end of the tensioning shaft is larger than the diameter of the middle part of the tensioning shaft, the diameter of the bottom end of the tensioning shaft is matched with the diameter of the first hole, and the diameter of the middle part of the tensioning shaft is matched with the diameter of the second hole.

7. The self-tightening torque detection tool for dockable equipment according to claim 1, characterized in that: The tension sleeve is an integrated structure, and a plurality of second through holes are arranged on the tension sleeve, and the second through holes are evenly arranged along the axis of the tension sleeve.

8. The self-tightening torque detection tool for dockable equipment according to claim 1, characterized in that: A protrusion is arranged at the front end of the tensioning shaft, and the protrusion is a multi-prism structure. A torque wrench is connected to one side of the protrusion.

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