CN110405692B - Small impact torque force dismounting tool and use method - Google Patents
Small impact torque force dismounting tool and use method Download PDFInfo
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- CN110405692B CN110405692B CN201910724416.0A CN201910724416A CN110405692B CN 110405692 B CN110405692 B CN 110405692B CN 201910724416 A CN201910724416 A CN 201910724416A CN 110405692 B CN110405692 B CN 110405692B
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- 238000000034 method Methods 0.000 title claims abstract description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 230000000903 blocking effect Effects 0.000 claims description 10
- 229910052802 copper Inorganic materials 0.000 claims description 10
- 239000010949 copper Substances 0.000 claims description 10
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 4
- 210000000513 rotator cuff Anatomy 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- 230000002035 prolonged effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
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Abstract
The invention provides a small-sized universal impact torque dismounting tool and a use method thereof, wherein the small-sized universal impact torque dismounting tool is used for dismounting screws of a skin on an aircraft, when the screws are too tightly screwed and cannot be dismounted by using a pneumatic tool, the small-sized universal impact torque dismounting tool can be easily dismounted, has a simple structure and strong practicability, has a wide application range, and can be used for dismounting screws and bolts in various tight, countersunk and narrow spaces. The tool has large torque and strong impact force, can adapt to screws on the surfaces of aircraft skins in various shapes, does not need external force lever points, has small and flexible structure, can disassemble in a narrow space, greatly improves the working efficiency, and also ensures the product quality.
Description
Technical Field
The invention belongs to the technical field of mechanical assembly and manufacture, and particularly relates to a small-sized universal impact torsion disassembling tool and a using method thereof.
Background
In the aircraft assembly and manufacture process, hundreds of thousands of screws and bolts are required to be assembled and disassembled, because all screws and bolts are assembled and disassembled by using a pneumatic wrench, sometimes because the screws are too tightly screwed, and the screwing force of part of screws or bolts is increased after the aircraft flies for a long time, when a certain part of screws need to be disassembled, the screws and bolts are sometimes difficult to be disassembled by using a common air deflector machine, and because part of screws belong to countersunk screws, besides the screws can be disassembled by using a straight or cross knife edge carried by a nut, the screws are required to be clamped for disassembling a certain part of screws, so that the screws are almost impossible to be disassembled. At present, the conventional method is that a common pneumatic trigger is firstly used, the pneumatic trigger is adjusted to a high impact and high torque low-speed gear for disassembly, if the pneumatic trigger cannot be disassembled, a hammer is used for beating a screw which cannot be disassembled, and then a pneumatic trigger is used for disassembly again, if the pneumatic trigger cannot be disassembled. At this time, a pressure wrench is used, a lever point is firstly searched at the periphery, then the screw which cannot be detached is forcibly pressed, and then the screw is detached. However, sometimes, due to the shape of the surface of the skin and the limitation of the disassembly space, a proper lever point cannot be found, so that a drill bit is adopted to drill the nut, then the nut is drilled, a new nut is riveted again, and the assembly requirement is met.
Disclosure of Invention
The invention aims to provide a small-sized strong-impact high-torque universal disassembling tool so as to ensure the quality of a cutter edge for disassembling a screw, lighten the working strength and difficulty and greatly solve the problem that the locking screw cannot be disassembled on the surface of a special-shaped skin and in a narrow space.
The technical scheme of the invention is as follows:
the small impact torque universal disassembling tool comprises a universal adapter 1, an inner diameter screwing device 2, an outer diameter screwing device 3, an outer diameter screwing device sleeve 4, an inner diameter screwing device connecting device 5, a circular blocking head 6 and a reset spring 7; wherein,,
the universal adapter 1 is cylindrical in shape, and a square hole is formed in the rear end of the universal adapter 1 and used for being connected with the inner diameter screwing device 2; the front end of the universal adapter 1 is provided with an inner hexagonal hole for connecting extension bars and cutter heads of different types;
the outer diameter screwing device sleeve 4 is of a hollow tubular structure, the inner diameter of the rear end part of the outer diameter screwing device sleeve is smaller than that of the rest part of the pipe body, an inner hole is formed, the inner wall of the middle part of the outer diameter screwing device sleeve 4 is provided with an inner thread, and the inner hole of the rear end part of the outer diameter screwing device sleeve 4 is provided with an inner thread;
the round baffle head 6 comprises a rod part and a round head part, wherein the rod part of the round baffle head 6 is provided with external threads which are matched with the internal threads of the inner hole of the outer diameter screwing device sleeve 4, so that the round baffle head 6 can be detachably connected with the outer part of the outer diameter screwing device sleeve 4; the round stop 6 is used for transmitting the impact force acted on by the outside to the outer diameter rotator sleeve 4;
the inner and outer diameter screwing device connecting device 5 is arranged at the inner rear end of the outer diameter screwing device sleeve 4, the inner and outer diameter screwing device connecting device 5 is provided with three parts, the front end is an external threaded rod, the middle part is a polished rod structure, the rear end is a cylindrical base, the outer diameter of the cylindrical base is larger than that of the polished rod structure, and the outer diameter of the polished rod structure is larger than that of the external threaded rod; the outer diameter of the cylindrical base is smaller than the inner diameter of the pipe body of the outer diameter screwing device sleeve 4, the cylindrical base and the pipe body form clearance fit, and the inner diameter screwing device and the outer diameter screwing device connecting device 5 are used for connecting the inner diameter screwing device 2, the outer diameter screwing device 3 and the reset spring 7;
the outer diameter screwing device 3 is of a hollow tubular structure, the inner diameter of the end part of the rear end is smaller than the inner diameter of the rest of the pipe body, the outer diameter screwing device 3 is arranged in the outer diameter screwing device sleeve 4 and is positioned at the front end of the inner diameter screwing device connecting device 5, the outer wall of the outer diameter screwing device 3 is provided with external threads which are matched with the internal threads of the inner wall of the middle part of the outer diameter screwing device sleeve 4, so that the impact force of the outer diameter screwing device sleeve 4 is transmitted to the outer diameter screwing device 3, and the inner wall of the front end of the pipe body of the outer diameter screwing device 3 is provided with an inclined plane guide groove; the inner diameter of the rear end part of the outer diameter screwing device 3 is larger than the outer diameter of the polish rod structure of the inner and outer diameter screwing device connecting device 5, and the inner wall of the rear end part of the outer diameter screwing device 3 is in clearance fit with the outer wall of the polish rod structure and is used for forming a quick reset structure with the reset spring 7;
the inner diameter screwing device 2 is provided with a front shaft, a middle shaft and a rear shaft, wherein the outer diameter of the front shaft is larger than that of the middle shaft, and the outer diameter of the middle shaft is larger than that of the rear shaft; the front shaft is positioned outside the outer diameter screwing device 3, and the front end of the front shaft is provided with a square quick connecting structure which is matched with a square hole of the universal adapter 1 so as to connect the universal adapter 1 with the inner diameter screwing device 2; the middle shaft and the rear shaft of the inner diameter screwing device 2 are positioned in the outer diameter screwing device 3, the inner diameter of the pipe body of the outer diameter screwing device 3 is larger than the outer diameter of the middle shaft of the inner diameter screwing device 2, the two parts are in clearance fit, the outer surface of the middle shaft is provided with a structure with an inclined surface guide key, and the inclined surface guide key is matched with an inclined surface guide groove arranged on the inner wall of the front end of the outer diameter screwing device 3 and used for decomposing the impact force of the outer diameter screwing device 3 into the impact force and the rotation force of the inner diameter screwing device 2 so as to be transmitted to various types of tool bits connected through the universal adapter 1; the rear shaft of the inner diameter screwing device 2 is provided with an internal thread, the internal thread of the rear shaft is matched with the external thread of the external threaded rod at the front end of the inner diameter screwing device connecting device 5, and the inner diameter screwing device is mainly used for connecting the outer diameter screwing device 3 with the reset spring 7;
the outer diameter of the reset spring 7 is smaller than the inner diameter of the tube body of the outer diameter screwing device 3, the outer diameter of the reset spring 7 is larger than the inner diameter of the rear end part of the outer diameter screwing device 3, the outer wall of the reset spring 7 is in clearance fit with the inner wall of the tube body of the outer diameter screwing device 3, and the rear end face of the reset spring 7 is in contact with the inner side face of the rear end part of the outer diameter screwing device 3;
the inner diameter of the reset spring 7 is larger than the outer diameter of the rear shaft of the inner diameter screwing device 2, the inner wall of the reset spring 7 is in clearance fit with the outer wall of the rear shaft of the inner diameter screwing device 2, the outer diameter of the reset spring 7 is smaller than the outer diameter of the middle shaft of the inner diameter screwing device 2, so that the front end face of the reset spring 7 is in contact with the rear end face of the middle shaft of the inner diameter screwing device 2, and the reset spring 7 is clamped between the middle shaft of the inner diameter screwing device 2 and the rear end of the outer diameter screwing device 3 and used for resetting.
In a specific embodiment, the small impact torque universal disassembling tool further comprises a medium-sized extension rod 8, a large-sized extension rod 9, a straight rotary cutter head 10 and a cross rotary cutter head 11, and one ends of the medium-sized extension rod 8, the large-sized extension rod 9, the straight rotary cutter head 10 and the cross rotary cutter head 11 are connected with the universal adapter 1.
In another aspect, the present invention provides a method for disassembly using the small impact torque universal disassembly tool described above, comprising the steps of:
1) For skin screws or bolts on an airplane, firstly adopting a pneumatic wrench to detach, if the pneumatic wrench cannot detach, firstly confirming the knife edge form of the screws or bolts, and then selecting a straight rotary cutter head 10, a cross rotary cutter head 11 or an inner hexagonal sleeve with a specified size;
2) According to the position and depth of the screw or the bolt, the universal adapter 1, a medium-size extension rod 8 or a large-size extension rod 9 with proper length are used;
3) Connecting the straight rotary cutter head 10, the cross rotary cutter head 11 or the inner hexagonal sleeve selected in the step 1) with the universal adapter 1, the medium-size extension rod 8 or the large-size extension rod 9 determined in the step 2), and then connecting with the quick-release head of the inner diameter screwing device 2;
4) If the edge of the locking screw or bolt to be disassembled is not good, the locking screw or bolt to be disassembled is slightly corrected by a copper hammer, and then the rotary cutter head or the inner hexagonal sleeve is contacted with the edge of the screw or bolt to be disassembled and aligned;
5) The round blocking head 6 is vertically knocked by a copper hammer with proper size, the round blocking head 6 transmits the impact force from the copper hammer to the outer diameter screwing sleeve 4, and then the impact force and the torsion force are generated on the cutter head through the combined action of the inner diameter screwing device 2 and the outer diameter screwing device 3, so that the screw or the bolt finally rotates according to the loosening direction.
The invention has the following effects and benefits:
(1) The small-sized universal impact torque dismounting tool has novel structure and tight fit, and can finish the dismounting work of the screws or bolts in the holes due to the characteristic of small overall size design. And because the device does not need an extra lever force supporting point, the device can adapt to various complex aircraft skin surfaces, and widens the working range of the device from different angles.
(2) The circular baffle head 6 and the outer diameter screwing device sleeve 4 of the small impact torque universal disassembling tool are in a threaded connection mode, related tools existing at present are all integrated, and the whole tool is scrapped as long as the circular baffle head 6 is damaged, on the contrary, the small impact torque universal disassembling tool only needs to replace the circular baffle head 6 with a new fitting, so that the service life of the tool is prolonged, and the cost is saved.
(3) The quick-release connector of the inner diameter screwing device 2 of the small impact torque universal disassembling tool can be connected with the tool bit of any type of working modes such as a straight joint, a cross joint, a copper sheathing joint and the like through the universal adapter 1, so that the problem that connecting parts in any form are difficult to disassemble can be solved.
(4) The small impact torque universal disassembling tool converts the strong impact force acting on the round baffle head 6 into the strong impact force and the large torque force for output, the force is instant force, compared with the continuous impact force and torque force of the pneumatic wrench, the small impact torque universal disassembling tool not only increases the force, but also can avoid the damage of the blade of the screw or the bolt due to the instant impact force and torque force.
(5) Due to the universality of the structure of the small impact torque universal disassembling tool, the tool can be widely applied to the field of aircraft manufacturing and assembling, and can be popularized to the field of manufacturing and assembling of civil machines, ships, high-speed rails, aerospace machines and the like.
Drawings
FIG. 1 is a schematic view of a small impact torque universal disassembly tool according to an embodiment of the present invention.
Fig. 2 is a partial enlarged view at a in fig. 1.
Fig. 3 is a schematic view of the structure of a medium extension bar.
Fig. 4 is a schematic structural view of a large extension bar.
Fig. 5 is a schematic view of a structure of a line-shaped rotary cutter head.
Fig. 6 is a schematic view of a cross-shaped rotary cutter head.
In the figure: 1, a universal adapter; 2 an inner diameter spinner; 3 an outer diameter screwing device; 4 an outer diameter spinner sleeve; 5 an inner and outer diameter screwing device connecting device; 6, a round blocking head; a return spring; a medium-size extension bar; 9 large extension bars; 10 a line-shaped rotary cutter head; 11 cross rotary cutter head.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings and technical schemes.
It should be understood that the drawings are not to scale but are merely drawn appropriately to illustrate various features of the basic principles of the invention. Specific design features of the invention disclosed herein, including for example, specific dimensions, orientations, positions, and configurations, will be determined in part by the specific intended application and use environment.
In the drawings, like or equivalent parts (elements) are referred to by like reference numerals.
FIG. 1 is a schematic view of a small impact torque universal disassembly tool according to an embodiment of the present invention. Referring to fig. 1, in the present embodiment, the small impact torque universal disassembly tool includes a universal adapter 1, an inside diameter spinner 2, an outside diameter spinner 3, an outside diameter spinner sleeve 4, an inside and outside diameter spinner connecting device 5, a circular stopper 6, and a return spring 7.
In the embodiment, the shape of the universal adapter 1 is cylindrical, and a square hole is formed at the rear end of the universal adapter 1 and is used for connecting an inner diameter screwing device 2; the front end of the universal adapter 1 is provided with an inner hexagonal hole for connecting extension bars and cutter heads of different types.
In this embodiment, the outer diameter rotator sleeve 4 is a hollow tubular structure, the inner diameter of the rear end portion thereof is smaller than the inner diameter of the rest of the tube body, an inner hole is formed, the inner wall of the middle portion of the outer diameter rotator sleeve 4 is provided with an inner thread, and the inner hole of the rear end portion of the outer diameter rotator sleeve 4 is provided with an inner thread.
In this embodiment, the circular stopper 6 includes a rod portion and a circular head portion, and the rod portion of the circular stopper 6 is provided with external threads to match with internal threads of the inner bore of the outer diameter rotator cuff 4, so that the circular stopper 6 is detachably connected to the outside of the outer diameter rotator cuff 4. The circular stop 6 is used to transmit the impact force of the external world on the device to the outer diameter rotator cuff 4, and as it is a high strength, detachable circular stop 6, it can be replaced several times when worn.
In this embodiment, the inner and outer diameter screwing device connecting device 5 is disposed at the inner rear end of the outer diameter screwing device sleeve 4, the inner and outer diameter screwing device connecting device 5 has three parts, the front end is an external threaded rod, the middle part is a polished rod structure, the rear end is a cylindrical base, the outer diameter of the cylindrical base is larger than that of the polished rod structure, and the outer diameter of the polished rod structure is larger than that of the external threaded rod. The outer diameter of the cylindrical base is smaller than the inner diameter of the tube body of the outer diameter screwing device sleeve 4, the outer diameter screwing device sleeve and the inner diameter screwing device sleeve form clearance fit, and the inner diameter screwing device connecting device 5 is used for connecting the inner diameter screwing device 2, the outer diameter screwing device 3 and the reset spring 7.
In this embodiment, the outer diameter screwing device 3 is of a hollow tubular structure, the inner diameter of the end part of the rear end is smaller than the inner diameter of the rest of the pipe body, the outer diameter screwing device 3 is arranged inside the outer diameter screwing device sleeve 4 and is positioned at the front end of the inner diameter screwing device connecting device 5, the outer wall of the outer diameter screwing device 3 is provided with external threads which are matched with the internal threads of the inner wall of the middle part of the outer diameter screwing device sleeve 4 (as shown in fig. 2) and are used for transmitting the impact force of the outer diameter screwing device sleeve 4 to the outer diameter screwing device 3, and the inner wall of the front end of the pipe body of the outer diameter screwing device 3 is provided with an inclined plane guide groove; the inner diameter of the rear end part of the outer diameter screwing device 3 is larger than the outer diameter of the polish rod structure of the inner and outer diameter screwing device connecting device 5, and the inner wall of the rear end part of the outer diameter screwing device 3 is in clearance fit with the outer wall of the polish rod structure and used for forming a quick reset structure with the reset spring 7.
The inside diameter clutch 2 has a stepped shaft-like profile structure having a front shaft, a middle shaft, and a rear shaft, wherein the outer diameter of the front shaft is larger than the outer diameter of the middle shaft, and the outer diameter of the middle shaft is larger than the outer diameter of the rear shaft. Wherein, the front axle is located the outside of external diameter revolver 3, and the front end of front axle is provided with square quick connect structure, cooperatees with universal adapter 1's tetragonal hole to connect universal adapter 1 with internal diameter revolver 2, so that according to specific operational environment, select different model medium size extension bar 8, large size extension bar 9, straight line rotary cutter head 10, cross rotary cutter head 11 etc.. The middle shaft and the rear shaft of the inner diameter screwing device 2 are positioned in the outer diameter screwing device 3, wherein the inner diameter of the pipe body of the outer diameter screwing device 3 is larger than the outer diameter of the middle shaft of the inner diameter screwing device 2, the inner diameter and the outer diameter are in clearance fit, the outer surface of the middle shaft is provided with a structure of an inclined plane guide key, the inclined plane guide key is matched with an inclined plane guide groove arranged on the inner wall of the front end of the outer diameter screwing device 3, and the impact force of the outer diameter screwing device 3 is decomposed into the impact force and the rotation force of the inner diameter screwing device 2, so that the impact force is transmitted to various types of tool bits connected through the universal adapter 1. The rear shaft of the inner diameter screwing device 2 is provided with an internal thread, the outer diameter of the rear shaft is smaller than that of the middle shaft, the internal thread of the rear shaft is matched with the external thread of the external threaded rod at the front end of the inner diameter screwing device connecting device 5, and the inner diameter screwing device is mainly used for connecting the outer diameter screwing device 3 with the reset spring 7.
The reset spring 7 is a compression spring, the outer diameter of the reset spring 7 is smaller than the inner diameter of the tube body of the outer diameter screwing device 3, the outer diameter of the reset spring 7 is larger than the inner diameter of the rear end part of the outer diameter screwing device 3, the outer wall of the reset spring 7 is in clearance fit with the inner wall of the tube body of the outer diameter screwing device 3, and the rear end face of the reset spring 7 is in contact with the inner side face of the inner hole of the rear end part of the outer diameter screwing device 3.
The internal diameter of the reset spring 7 is larger than the external diameter of the rear shaft of the internal diameter screwing device 2, the inner wall of the reset spring 7 is in clearance fit with the external wall of the rear shaft of the internal diameter screwing device 2, the external diameter of the reset spring 7 is smaller than the external diameter of the middle shaft of the internal diameter screwing device 2, so that the front end face of the reset spring 7 is in contact with the rear end face of the middle shaft of the internal diameter screwing device 2, and the reset spring 7 is clamped between the middle shaft of the internal diameter screwing device 2 and the rear end of the external diameter screwing device 3, and is mainly used for a reset function.
In a specific embodiment, the inner diameter spinner 2 and the outer diameter spinner 3 are made of a high strength steel material.
In a specific embodiment, the universal disassembly tool for small impact torque further comprises a medium-sized extension bar 8, a large-sized extension bar 9, an in-line rotary cutter head 10 and a cross rotary cutter head 11. The universal adapter 1 is used for connecting various types of in-line rotary cutter heads 10, cross rotary cutter heads 11 and inner hexagonal sleeve joints. The medium-size extension bar 8 and the large-size extension bar 9 are mainly used for expanding the processing locking screw object of the tool into a narrow space or a hole for disassembly. The straight rotary cutter head 10 and the cross rotary cutter head 11 are mainly used for disassembling bolts or screws of straight or cross cutters.
The method for disassembling the small impact torsion universal disassembling tool comprises the following steps:
(1) For skin screws or bolts on an airplane, firstly adopting a pneumatic trigger to detach, if the pneumatic trigger cannot be detached, firstly confirming the knife edge form of the screws or bolts, and then selecting a straight rotary cutter head 10, a cross rotary cutter head 11 or an inner hexagonal sleeve with a specified size;
(2) According to the position and depth of the screw or the bolt, whether a universal adapter or an extension bar with a proper length is required to be selected is determined, such as a medium-size extension bar 8 or a large-size extension bar 9;
(3) Connecting the selected straight rotary cutter head 10, cross rotary cutter head 11 or inner hexagonal sleeve with the universal adapter 1 or the medium-size extension rod 8 or the large-size extension rod 9, and then connecting with the quick-release head of the inner diameter screwing device 2;
(4) If the edge of the locking screw or bolt to be disassembled is not good, a copper hammer is required to be slightly corrected, and then the rotary tool bit or the inner hexagonal sleeve of the tool is contacted with the edge of the screw or bolt to be disassembled and aligned;
(5) The round baffle head 6 is vertically beaten by a copper hammer with a proper size, at the moment, the round baffle head 6 can transmit the impact force from the copper hammer to the outer diameter screwing sleeve 4, and then powerful impact force and torsion force are generated on the cutter head through the combined action of the inner diameter screwing device 2 and the outer diameter screwing device 3, and finally the screw or the bolt rotates according to the loosening direction.
The small-sized universal impact torque dismounting tool provided by the invention is used for dismounting the screw of the upper skin of the aircraft, when the screw is too tightly screwed and cannot be dismounted by using a pneumatic tool, the small-sized universal impact torque dismounting tool provided by the invention can be easily dismounted, has the advantages of simple structure, strong practicability and wide application range, and can be used for dismounting screws and bolts in various tight, countersunk and narrow spaces. The tool has large torque and strong impact force, can adapt to screws on the surfaces of aircraft skins in various shapes, does not need external force lever points, has small and flexible structure, can disassemble in a narrow space, greatly improves the working efficiency, and also ensures the product quality.
The description of the exemplary embodiments presented above is merely illustrative of the technical solution of the present invention and is not intended to be exhaustive or to limit the invention to the precise form described. Obviously, many modifications and variations are possible in light of the above teaching to those of ordinary skill in the art. The exemplary embodiments were chosen and described in order to explain the specific principles of the invention and its practical application to thereby enable others skilled in the art to understand, make and utilize the invention in various exemplary embodiments and with various alternatives and modifications. It is intended that the scope of the invention be defined by the following claims and their equivalents.
Claims (3)
1. The small-sized impact torque universal disassembling tool is characterized by comprising a universal adapter (1), an inner diameter screwing device (2), an outer diameter screwing device (3), an outer diameter screwing device sleeve (4), an inner diameter screwing device connecting device (5), a circular blocking head (6) and a reset spring (7); wherein,,
the universal adapter (1) is cylindrical in shape, and a square hole is formed in the rear end of the universal adapter (1) and used for being connected with the inner diameter screwing device (2); the front end of the universal adapter (1) is provided with an inner hexagonal hole for connecting extension bars and cutter heads of different types;
the outer diameter screwing device sleeve (4) is of a hollow tubular structure, the inner diameter of the end part of the rear end of the outer diameter screwing device sleeve is smaller than the inner diameter of the rest of the pipe body to form an inner hole, the inner wall of the middle part of the outer diameter screwing device sleeve (4) is provided with an inner thread, and the inner hole of the end part of the rear end of the outer diameter screwing device sleeve (4) is provided with an inner thread;
the round blocking head (6) comprises a rod part and a round head part, the rod part of the round blocking head (6) is provided with external threads, and the external threads are matched with the internal threads of the inner hole of the outer diameter screwing device sleeve (4), so that the round blocking head (6) is detachably connected with the outer part of the outer diameter screwing device sleeve (4); the round baffle head (6) is used for transmitting the impact force acted on the outside to the outer diameter rotator sleeve (4);
the inner diameter and outer diameter screwing device connecting device (5) is arranged at the inner rear end of the outer diameter screwing device sleeve (4), the inner diameter and outer diameter screwing device connecting device (5) is provided with three parts, the front end is an external threaded rod, the middle part is a polished rod structure, the rear end is a cylindrical base, the outer diameter of the cylindrical base is larger than that of the polished rod structure, and the outer diameter of the polished rod structure is larger than that of the external threaded rod structure; the outer diameter of the cylindrical base is smaller than the inner diameter of the pipe body of the outer diameter screwing device sleeve (4), the cylindrical base and the pipe body form clearance fit, and the inner diameter screwing device and the outer diameter screwing device connecting device (5) are used for connecting the inner diameter screwing device (2), the outer diameter screwing device (3) and the reset spring (7);
the outer diameter screwing device (3) is of a hollow tubular structure, the inner diameter of the end part of the rear end is smaller than the inner diameter of the rest of the pipe body, the outer diameter screwing device (3) is arranged in the outer diameter screwing device sleeve (4) and is positioned at the front end of the inner diameter screwing device connecting device (5), the outer wall of the outer diameter screwing device (3) is provided with external threads which are matched with the internal threads of the inner wall of the middle part of the outer diameter screwing device sleeve (4), so that the impact force of the outer diameter screwing device sleeve (4) is transmitted to the outer diameter screwing device (3), and the inner wall of the front end of the pipe body of the outer diameter screwing device (3) is provided with an inclined guide groove; the inner diameter of the end part of the rear end of the outer diameter screwing device (3) is larger than the outer diameter of a polish rod structure of the inner and outer diameter screwing device connecting device (5), and the inner wall of the end part of the rear end of the outer diameter screwing device (3) is in clearance fit with the outer wall of the polish rod structure and is used for forming a quick reset structure with a reset spring (7);
the inner diameter screwing device (2) is provided with a front shaft, a middle shaft and a rear shaft, wherein the outer diameter of the front shaft is larger than that of the middle shaft, and the outer diameter of the middle shaft is larger than that of the rear shaft; the front shaft is positioned outside the outer diameter screwing device (3), and the front end of the front shaft is provided with a square quick connecting structure which is matched with a square hole of the universal adapter (1) so as to connect the universal adapter (1) with the inner diameter screwing device (2); the middle shaft and the rear shaft of the inner diameter screwing device (2) are positioned in the outer diameter screwing device (3), the inner diameter of the pipe body of the outer diameter screwing device (3) is larger than the outer diameter of the middle shaft of the inner diameter screwing device (2), the two parts are in clearance fit, the outer surface of the middle shaft is provided with a structure with an inclined plane guide key, the inclined plane guide key is matched with an inclined plane guide groove arranged on the inner wall of the front end of the outer diameter screwing device (3), and the inclined plane guide key is used for decomposing the impact force of the outer diameter screwing device (3) into the impact force and the rotation force of the inner diameter screwing device (2) and transmitting the impact force and the rotation force to various types of tool bits connected through the universal adapter (1); the rear shaft of the inner diameter screwing device (2) is provided with an internal thread, the internal thread of the rear shaft is matched with the external thread of the external threaded rod at the front end of the inner diameter screwing device connecting device (5), and the inner diameter screwing device is mainly used for connecting the outer diameter screwing device (3) with a reset spring (7);
the reset spring (7) is a compression spring, the outer diameter of the reset spring (7) is smaller than the inner diameter of the tube body of the outer diameter screwing device (3), the outer diameter of the reset spring (7) is larger than the inner diameter of the rear end part of the outer diameter screwing device (3), the outer wall of the reset spring (7) is in clearance fit with the inner wall of the tube body of the outer diameter screwing device (3), and the rear end face of the reset spring (7) is in contact with the inner side face of the rear end part of the outer diameter screwing device (3);
the inner diameter of the reset spring (7) is larger than the outer diameter of the rear shaft of the inner diameter screwing device (2), the inner wall of the reset spring (7) is in clearance fit with the outer wall of the rear shaft of the inner diameter screwing device (2), the outer diameter of the reset spring (7) is smaller than the outer diameter of the middle shaft of the inner diameter screwing device (2), the front end face of the reset spring (7) is in contact with the rear end face of the middle shaft of the inner diameter screwing device (2), and accordingly the reset spring (7) is clamped between the middle shaft of the inner diameter screwing device (2) and the rear end of the outer diameter screwing device (3) and is used for resetting.
2. The small impact torque universal disassembling tool according to claim 1, further comprising a medium-sized extension bar (8), a large-sized extension bar (9), a straight rotary cutter head (10) and a cross rotary cutter head (11), wherein one ends of the medium-sized extension bar (8), the large-sized extension bar (9), the straight rotary cutter head (10) and the cross rotary cutter head (11) are connected with the universal adapter (1).
3. A method of disassembly using the small impact torque universal disassembly tool of claim 1 or 2, comprising the steps of:
1) For skin screws or bolts on an airplane, firstly adopting a pneumatic wrench to detach, if the pneumatic wrench cannot detach, firstly confirming the knife edge form of the screws or bolts, and then selecting a straight rotary cutter head (10), a cross rotary cutter head (11) or an inner hexagonal sleeve with a specified size;
2) According to the position and depth of the screw or the bolt, a universal adapter (1), a medium-sized extension bar (8) or a large-sized extension bar (9) with proper length are used;
3) Connecting the straight rotary cutter head (10), the cross rotary cutter head (11) or the inner hexagonal sleeve selected in the step 1) with the universal adapter (1), the medium-size extension rod (8) or the large-size extension rod (9) determined in the step 2), and then connecting with the inner diameter rotary connector (2);
4) If the edge of the locking screw or bolt to be disassembled is not good, the locking screw or bolt to be disassembled is slightly corrected by a copper hammer, and then the rotary cutter head or the inner hexagonal sleeve is contacted with the edge of the screw or bolt to be disassembled and aligned;
5) The round blocking head (6) is vertically knocked by a copper hammer with proper size, the impact force from the copper hammer is transmitted to the outer diameter screwing sleeve (4) by the round blocking head (6), and then the impact force and the torsion force are generated on the cutter head through the combined action of the inner diameter screwing device (2) and the outer diameter screwing device (3), so that the screw or the bolt finally rotates according to the loosening direction.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910724416.0A CN110405692B (en) | 2019-08-07 | 2019-08-07 | Small impact torque force dismounting tool and use method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910724416.0A CN110405692B (en) | 2019-08-07 | 2019-08-07 | Small impact torque force dismounting tool and use method |
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| CN110405692A CN110405692A (en) | 2019-11-05 |
| CN110405692B true CN110405692B (en) | 2023-06-27 |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE60239739D1 (en) * | 2001-05-17 | 2011-05-26 | Citizen Holdings Co Ltd | TOOL FOR A WRISTWATCH |
| FR2936971B1 (en) * | 2008-10-14 | 2010-12-10 | Smo Dev | HAND TOOL FOR PERFORMING AT LEAST ONE OF THE CUTTING AND / OR PERCUSSION OPERATIONS ON MEANS OF ASSEMBLY, SUCH AS SCREWS, BOLTS OR PINS |
| CN204716715U (en) * | 2014-12-18 | 2015-10-21 | 厦门茹峰装饰工程有限公司 | A kind of anti-random demounting bolt nut fastener and special dismantling device |
| CN105291034B (en) * | 2015-10-21 | 2018-04-03 | 中国空空导弹研究院 | A kind of automatic percussion device |
| CN207997272U (en) * | 2017-12-26 | 2018-10-23 | 常德财经中等专业学校 | It is a kind of to unload knife spanner with torsion |
| CN108098691A (en) * | 2018-02-13 | 2018-06-01 | 张秀群 | A kind of rusted-on nut stripping attachment |
| CN210909836U (en) * | 2019-08-07 | 2020-07-03 | 沈阳飞机工业（集团）有限公司 | Universal small impact torsion disassembling tool |
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