Removal tool for conical hood of fuze
By designing a conical hood removal tool with a torque measurement structure, the difficulty of installation and disassembly of the cone threaded connection is solved, and the torque controllable operation is achieved, ensuring the safe and effective disassembly of the cone.
Patent Information
- Application Number
- CN202421173414.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-27
- Publication Date
- 2025-01-10
- Estimated Expiration
- Not applicable · inactive patent
Smart Images
Figure CN222328051U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a mechanical operating tool, in particular to a conical hood disassembly tool. Background Art
[0002] Conical threaded mounting objects, e.g. Figure 3 The conical object shown in the figure has the upper and lower parts installed as a whole through threaded connections, especially the combined fuze conical wind cap with high hardness, smooth surface and low friction coefficient. Both installation and removal require the help of tools. Usually, the installation is not easy to be too loose or too tight, so there are strict requirements for the installation torque. For example, flying objects, fire bombs, and penetrating objects usually have such requirements, so they are also widely used in non-civilian fields. If the head of the rod is inserted into the mounting hole for operation, it is often easy to cause damage due to improper force, or the installation is too tight and cannot be opened. Therefore, this type of object cannot be installed and disassembled using common tools, and special tools are required, especially tools with torque requirements, which have not been publicly announced. Summary of the invention
[0003] The technical problem to be solved by the utility model is to provide a fuze conical wind cap disassembly tool, which can be used to disassemble and assemble the cone head in a simple and easy-to-use manner with controllable torque.
[0004] The described fuze cone hood removal tool is generally in the shape of a long straight rod, and is characterized in that: a cylindrical sleeve is provided in the middle of the described fuze cone hood removal tool, and rod-shaped hand levers are fixedly connected on both sides of the sleeve, the axis of the sleeve is perpendicular to the length direction of the hand lever, and a locking pin is vertically inserted through the side wall of the sleeve, and the locking pin is vertically movably nested by the fork head of the clamping fork on the outside of the sleeve, and the fork handle of the clamping fork is arranged parallel to the described fuze cone hood removal tool body, and a spring sheet is fixed on the side of the fork handle facing the tool body, one end of the spring sheet rests on the tool body, and is connected to the sleeve through a pivotally connected clamping rod shaft at the tail of the fork head, and the clamping rod shaft is parallel to the axis of the sleeve.
[0005] Furthermore, a rod sleeve with a torque measuring structure is provided on one side of the hand lever, and a torsion rod, a thrust block, a force measuring spring, a force transmission rod and an adjusting disk are sequentially provided in the rod sleeve in the end direction on this side, and a concave rod tail groove is provided in the center of the outer end of the torsion rod; the thrust block is separately and independently provided and has only the freedom to move axially in the rod sleeve, and a concave abutment groove is provided in the center of the inner end of the thrust block, and a polyhedron-shaped force measuring block is movably placed between the rod tail groove and the abutment groove; the outer side surface of the adjusting disk is threadedly connected to the inner side surface of the rod sleeve, and the tail of the adjusting disk is fixedly connected to the adjusting cylinder movably sleeved outside the rod sleeve through the chassis.
[0006] Preferably, the bottom surfaces of the rod tail groove and the abutment groove are both planes perpendicular to the axis, and the force measuring block is a hexahedron.
[0007] The inner end of the torsion bar is fixed or integrated with the sleeve, the front part of the torsion bar is pivotally connected to the rod sleeve through a pin, the rear diameter of the torsion bar is 1 / 2 to 2 / 3 of the inner diameter of the rod sleeve, and the inner end of the rod sleeve is separated from the sleeve by a gap.
[0008] As an embodiment, the outer ends of the hand rods on both sides of the sleeve are sleeved with hand handles, the hand handles are fixedly connected to the hand rod or the rod sleeve, and the chassis and the adjustment cylinder are connected as a whole through a strip-shaped connecting belt.
[0009] Preferably, the hand lever on the side opposite to the torsion bar has a rod core built in, and a rod sleeve fixedly connected with the rod core through a pin is disposed outside the rod core.
[0010] Preferably, the outer end of the locking pin is fixedly connected to the clamping fork, and the inner end extends into the inner wall of the sleeve when the fork handle is not subjected to force, and is completely retracted into the inner wall of the sleeve when the fork handle is fully pressed down.
[0011] The utility model can be operated on a cone connected by a thread, and can conveniently install or remove the cone. The operation is simple and clear, and the direction of the force is easy to control. Since the utility model has a torque measurement function, it is easy to control the force during installation, and thus control the tightening degree of the cone thread installation.
[0012] The torque measurement structure of the utility model is simple. The torque is measured by balancing the torque and the friction force. The compression degree of the spring is preset by adjusting the position of the adjusting disk, so as to set the balance point of the friction force. When the torque exceeds the preset friction force, the force measuring block will flip and the resulting clicking sound will warn that the torque has reached the preset value. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0014] Figure 2 yes Figure 1 Schematic bottom view of .
[0015] Figure 3 It is a side view of the conical structure of the operation object.
[0016] In the figure: 1-hand handle, 2-hand lever, 3-pin, 4-sleeve, 5-hole, 6-pin shaft, 7-torsion bar, 8-rod tail groove, 9-force measuring block, 10-thrust block, 11-adjusting cylinder, 12-force measuring spring, 13-spring seat, 14-force transmission rod, 15-adjusting disk, 16-chassis, 17-adjusting thread, 18-connecting belt, 19-rest groove, 20-rod sleeve, 21-fork handle, 22-spring sheet, 23-clamping rod shaft, 24-clamping fork, 25-locking pin, 26-rod core, 27-fork head, 28-disassembly hole. DETAILED DESCRIPTION
[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments: the fuze conical cap removal tool is used to disassemble and assemble a threaded cone, such as a cone Figure 3 As shown, only one side of the cone is provided with a disassembly hole 28, and the cone is tightly connected to the base body below through a thread. Since the cone surface is smooth and hard, the surface friction coefficient is small, it is difficult to grasp, and it is even more difficult to rotate relative to the base, so it is inconvenient to disassemble. If a pointed hard rod is directly inserted into the disassembly hole to promote installation or disassembly, since it is difficult to keep the force perpendicular to the axis of the cone during disassembly, the force efficiency is reduced and the cone and tools are easily damaged. If the installation is too tight, it will be difficult to disassemble, and if the installation is too loose, it will not meet the requirements, and it is easy to cause the cone to fall off during transportation and use.
[0018] The utility model of the fuze cone cap removal tool is generally in the shape of a long straight rod, and the typical embodiment structure is as follows Figure 1 , 2 As shown, a hollow cylindrical sleeve 4 is integrally provided in the middle of the tool, which is used to be inserted from the tip of the vertebral body. The sleeve 4 is fixed with a rod-shaped hand lever 2 on both sides, which is used to generate torque when twisting. The axis of the sleeve 4 is perpendicular to the length direction of the hand lever 2. The hand levers 2 on both sides of the sleeve 4 are in a straight line or at an obtuse angle.
[0019] A locking pin 25 is inserted vertically through the side wall of the sleeve 4 for inserting into the disassembly hole 28 of the vertebral body. The structure of the locking pin 25 is shown in FIG. Figure 1, the outer end of the locking pin 25 is outside the sleeve 4. A pair of parallel bifurcated rods are provided at the outer end of the fork 27 of the clamping fork 24. The diameter of the outer end rod of the locking pin 25 is slightly smaller than the spacing of the bifurcations of the fork. The outer end rod of the locking pin 25 is vertically nested in the fork 27 of the clamping fork 24. The outer end of the locking pin 25 is movably riveted to the clamping fork 24 or movably connected with a nut through a nut, that is, the locking pin 25 is embedded in the fork 27 perpendicularly to the plane of the fork 27 and can move within a small range along the fork 27. The above structure shows that the outer end rod of the locking pin 25 is fixedly provided with a portion with a diameter exceeding the bifurcated gap of the fork 27 on both sides of the locking pin 25, so that the locking pin 25 can be movably restricted in the fork 27 along the bifurcated midline of the fork 27, so that the locking pin 25 can maintain axial movement in the pin hole during the rotation around the clamping rod shaft 23.
[0020] The fork handle 21 of the clamping fork 24 is arranged parallel to the body of the fuze cone hood removal tool. One end of a spring sheet 22 is fixed to the side of the tail of the fork handle 21 facing the tool body, and the other end of the spring sheet 22 abuts against the tool body. Ideally, the axes of the locking pin 25, the fork head 27, the fork handle 21, the spring sheet 22 and the hand lever 2 are all in a plane A. The tail of the fork head 27 is connected to the sleeve 4 through a pivoted clamping rod shaft 23, and the clamping rod shaft 23 is parallel to the axis of the sleeve 4. One connection scheme is that the clamping rod shaft 23 is fixedly connected to the sleeve 4 through the connecting parts at both ends, and the middle part of the clamping rod shaft 23 passes through the fork handle 21 so that the clamping fork 24 can rotate around the clamping rod shaft 23. So that the clamping fork 24 is still movable in plane A. The fork handle 21 and the fork head 27 perform lever motion around the clamp rod shaft 23. When the fork handle 21 is released, the inner end of the locking pin 25 extends into the inner wall of the sleeve 4. When the fork handle 21 is fully pressed down, the locking pin 25 is completely retracted into the inner wall of the sleeve 4. Since the locking pin 25 performs circular motion, when the locking pin 25 is limited to only the degree of freedom to move along the bifurcated midline of the fork head 27, the locking pin 25 can perform linear motion along the through hole of the sleeve 4.
[0021] A torque measuring structure is arranged in the handle bar 2 on one side, and a rod sleeve 20 is arranged on the outer cover of the handle bar 2 on the other side. Figure 1 As shown, a torsion bar 7, a thrust block 10, a force measuring spring 12, a force transmission rod 14 and an adjusting disk 15 are sequentially arranged in the end direction of the rod sleeve 20 on this side. The torsion bar 7 is basically rod-shaped, and the diameter of the outer end of the torsion bar 7 is reduced to 1 / 2 to 2 / 3 of the inner end, and the inner end is fixed to the sleeve 4 as a whole, and a concave rod tail groove 8 is arranged in the center of the end surface of the outer end; the front part of the torsion bar 7 is pivotally connected to the rod sleeve 20 through a pin 6, and the inner end of the rod sleeve 20 is a movable end and has no connection with the torsion bar 7. The inner end of the rod sleeve 20 is separated from the sleeve 4 by a gap, so when the hand lever 2 on this side is subjected to a force in the horizontal plane perpendicular to the hand lever 2, the rod sleeve 20 will deflect relative to the torsion bar 7.
[0022] The adjacent thrust block 10 is separately and independently arranged, and the thrust block 10 only has the freedom of axial movement in the rod sleeve 20. An inwardly concave abutment groove 19 is provided in the center of the inner end of the thrust block 10, and a polyhedron-shaped force measuring block 9 is movably placed between the rod tail groove 8 and the abutment groove 19. The rod tail groove 8 and the abutment groove 19 are separated by the force measuring block 9 and cannot contact each other; the outer side of the thrust block 10 is pressed by the force measuring spring 12, which squeezes the force measuring block 9 to the bottom of the rod tail groove 8.
[0023] Preferably, the bottom surfaces of the rod tail groove 8 and the abutment groove 19 are both planes perpendicular to the axis, the force block 9 is a hexahedron with a square cross section, and the friction coefficient between the force block 9 and the rod tail groove 8 and the abutment groove 19 is greater than 0.7, so the force block 9 and the adjacent parts basically do not slide, but only roll. The hardness of the force block 9 is greater than Shore 80A, and when the force block 9 rolls, a crisp clicking sound will be emitted.
[0024] The force transmission rod 14 outside the force measuring spring 12 also has only the freedom to move axially in the rod sleeve 20. The surface friction coefficient of the force transmission rod 14 is small, and no jamming will occur when it moves or when the outer adjustment disk 15 rotates.
[0025] The outer side of the adjusting disk 15 is threadedly connected to the inner side of the rod sleeve 20, so when the adjusting disk 15 rotates, the axial movement occurs at the same time. The tail of the adjusting disk 15 is fixedly connected to the adjusting cylinder 11 movably sleeved outside the rod sleeve 20 through the bottom plate 16. When the adjusting cylinder 11 rotates relative to the rod sleeve 20, the adjusting disk 15 moves axially to adjust the pressure of the force measuring spring on the thrust block 10. The scale on the surface of the adjusting disk 15 can accurately preset the torque value.
[0026] As an embodiment, the outer ends of the hand bar 2 on both sides of the sleeve 4 are sleeved with a hand handle 1, and the hand handle 1 is fixedly connected to the hand bar 2 or the rod sleeve 20. The friction coefficient of the surface of the hand handle 1 is large, which is convenient for force application operation. On the side where the torsion structure is provided, the chassis 16 and the adjustment cylinder 11 are connected as a whole through a strip-shaped connecting belt 18, so that the hand handle 1 and the rod sleeve 20 are fixedly connected through a fixed point, and the adjustment cylinder 11 also has a rotation space of 90° to 180°. At the extreme position of the rotation of the adjustment cylinder 11, the connecting belt 18 is limited by the fixed point. The rotation of the adjustment cylinder 11 is converted into pressure on the force measuring spring 12, and the pressure applied by the force measuring spring 12 to the thrust block 10 can actually be quantitatively adjusted, that is, a friction force between the thrust block 10 and the force measuring block 9 is set. When the torque exceeds the friction force, the force measuring block 9 is pushed to roll and a crisp click sound is emitted, warning that the torque has reached the set value.
[0027] On the side where the torsion structure is not provided, the hand lever 2 has a rod core 26 built therein, and the rod core 26 is provided with a rod sleeve fixedly connected by a pin 3. The rod core 26 is made of hard metal, and the rod sleeve is a poor heat conductor, so it can be conveniently used in cold seasons.
[0028] When in use, first fix the base of the vertebral body to be operated, turn the adjustment cylinder 11 first, set the torque value, then insert the utility model from the tip of the vertebral body to be operated, press down the fork handle 21 at the same time, remove the locking pin 25, align the locking pin 25 with the disassembly hole 28 of the vertebral body, and then release the fork handle 21 to lock the vertebral body. When tightening, turn the utility model tool around the sleeve 4, tighten or loosen the vertebral body as needed, until you hear the alarm sound of the tool, indicating that the torque value has been reached, that is, you need to stop twisting immediately. Press down the fork handle 21 to take out the utility model tool to complete the operation.
[0029] The above embodiments can be used interchangeably as needed, and the preferred solution does not affect the protection scope of the present utility model.
Claims
1. A fuze cone cap removal tool, which is in the shape of a long straight rod as a whole, characterized by: A cylindrical sleeve (4) is provided in the middle of the fuze cone hood removal tool, and rod-shaped hand levers (2) are fixedly connected to both sides of the sleeve (4), the axis of the sleeve (4) is perpendicular to the length direction of the hand lever (2), and a locking pin (25) is vertically inserted through the side wall of the sleeve (4), and the locking pin (25) is vertically movably nested on the outer side of the sleeve (4) by the fork head (27) of the clamping fork (24), and the fork handle (21) of the clamping fork (24) is arranged parallel to the body of the fuze cone hood removal tool, and a spring sheet (22) is fixed on the side of the tail of the fork handle (21) facing the tool body, and one end of the spring sheet (22) is against the tool body, and is connected to the sleeve (4) through a pivotally connected clamping rod shaft (23) at the tail of the fork head (27), and the clamping rod shaft (23) is parallel to the axis of the sleeve (4).
2. The fuze cone cap removal tool according to claim 1, characterized in that: A hand lever (2) on one side is provided with a rod sleeve (20) having a torque measuring structure therein, and a torsion bar (7), a thrust block (10), a force measuring spring (12), a force transmission rod (14) and an adjusting disk (15) are sequentially arranged in the rod sleeve (20) in the direction of the end of the side, and a concave rod tail groove (8) is arranged in the center of the outer end of the torsion bar (7); the thrust block (10) is arranged separately and independently and has only the freedom of axial movement in the rod sleeve (20); a concave abutment groove (19) is arranged in the center of the inner end of the thrust block (10), and a polyhedral force measuring block (9) is movably placed between the rod tail groove (8) and the abutment groove (19); the outer side surface of the adjusting disk (15) is threadedly connected to the inner side surface of the rod sleeve (20), and the tail of the adjusting disk (15) is fixedly connected to an adjusting cylinder (11) movably sleeved outside the rod sleeve (20) through a chassis (16).
3. The fuze cone cap removal tool according to claim 2, characterized in that: The bottom surfaces of the rod tail groove (8) and the abutting groove (19) are both planes perpendicular to the axis, and the force measuring block (9) is a hexahedron.
4. The fuze cone cap removal tool according to claim 2, characterized in that: The inner end of the torsion bar (7) is fixed to or integrated with the sleeve (4), the front part of the torsion bar (7) is pivotally connected to the rod sleeve (20) via a pin shaft (6), the rear diameter of the torsion bar (7) is 1 / 2 to 2 / 3 of the inner diameter of the rod sleeve (20), and the inner end of the rod sleeve (20) is separated from the sleeve (4) by a gap.
5. The fuze cone cap removal tool according to claim 2, characterized in that: The outer ends of the hand rod (2) on both sides of the sleeve (4) are sleeved with a hand handle (1), the hand handle (1) is fixedly connected to the hand rod (2) or the rod sleeve (20), and the chassis (16) and the adjustment cylinder (11) are connected as a whole via a strip-shaped connecting belt (18).
6. The fuze cone cap removal tool according to claim 2, characterized in that: A rod core (26) is built into the hand lever (2) on the side opposite to the torsion bar (7), and a rod sleeve fixedly connected to the rod core (26) is provided on the outer shell of the rod core (26) via a pin (3).
7. The fuze cone cap removal tool according to claim 1, characterized in that: The outer end of the locking pin (25) is fixedly connected to the clamping fork (24), and the inner end extends into the inner wall of the sleeve (4) when the fork handle (21) is not subjected to force, and is completely retracted into the inner wall of the sleeve (4) when the fork handle (21) is fully pressed down.