Auxiliary tool for disassembling and assembling propeller

Abstract

The utility model discloses a propeller dismounting assistive device, which comprises an assistive device body (1) for dismounting a propeller (2), and is characterized in that the assistive device body (1) comprises an outer shell (11), an inner shell (12), a rotating mechanism (13), a first adjusting mechanism (14), a second adjusting mechanism (15) and a locking mechanism (16). An operator operates the rotating mechanism (13) to enable the rotating mechanism (13) and the first adjusting mechanism (14) to be linked, so that the hole pitch of the auxiliary tool is adjustable, a rotating disc (151) arranged on the second adjusting mechanism (15) is rotated to select a protrusion (152) matched with an auxiliary hole of a pressing ring (21) of a propeller (2), then the rotating disc (151) is locked through the locking mechanism (16), and the hole diameter of the auxiliary tool is adjustable. And after being used for a long time, only the bulge (152) needs to be replaced, so that materials are saved, the applicability is higher, and the working efficiency is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of propeller assembly and disassembly technology for medium and large underwater vehicles, and in particular to a propeller assembly and disassembly auxiliary tool. Background Technology

[0002] The propulsion system of a medium-to-large underwater vehicle consists of a set of counter-rotating propellers and front and rear pressure rings. The front propeller is mounted on the spline groove of the engine's outer shaft and is axially positioned by the front pressure ring. The rear propeller is mounted on the spline groove of the engine's inner shaft and is axially positioned by the rear pressure ring. Four disassembly and assembly process holes are evenly distributed on the end faces of the front and rear pressure rings. During disassembly and assembly, the four protrusions at the end of the disassembly and assembly tool are first inserted into the process holes of the pressure ring. Then, the handle of the disassembly and assembly tool is struck with a hammer to tighten or loosen the pressure ring, thus completing the disassembly and assembly of the propeller.

[0003] Currently, a search reveals that Chinese utility model patent CN217434196U discloses a detachable underwater vehicle propeller pressure ring disassembly and assembly tool, including a tool body (1), a front pressure ring disassembly and assembly component (2), a rear pressure ring disassembly and assembly component (3), and a rotating handle (4). While the aforementioned patent enables the disassembly and assembly of the front and rear pressure rings of the propeller, it still suffers from the following technical drawbacks:

[0004] On the one hand, the propeller pressure rings of underwater vehicles of different specifications and sizes are different, and the hole spacing and hole diameter of their disassembly and assembly process holes are different. During the disassembly and assembly process, different front and rear pressure ring disassembly and assembly components need to be prepared, which has poor applicability and will increase the amount of material used.

[0005] On the other hand, during the process of replacing and disassembling components, operators need to measure again or compare with the pressure ring process hole, making it impossible to intuitively determine the size of the required component. This makes the operation cumbersome and the work efficiency low.

[0006] On the other hand, the above-designed auxiliary equipment is only suitable for small or medium-sized underwater vehicles. For the disassembly and assembly of medium and large underwater vehicles, the auxiliary equipment is relatively heavy and not conducive to operation.

[0007] The above-mentioned auxiliary tools have many shortcomings and deficiencies, such as being unable to meet the requirements of pressure rings of different sizes and being cumbersome to operate. Therefore, the key to solving the above technical problems lies in developing a propeller assembly and disassembly tool that is more practical and efficient. Summary of the Invention

[0008] In view of the many defects and deficiencies in the above-mentioned background technology, this utility model has made improvements and innovations, aiming to provide a propeller assembly and disassembly auxiliary tool with high adaptability. By operating the rotating mechanism, the inner shell is rotated, thereby linking the first adjustment mechanism to adjust the hole spacing between the protrusions, so as to adapt to more pressure rings of different sizes.

[0009] Another objective of this invention is to provide protrusions of different diameters on the side wall of the turntable. By replacing the protrusions with different protrusions after rotating the turntable, it is possible to adapt to different pressure ring hole diameters. Furthermore, the protrusions are detachably connected to the turntable. Once the protrusions are worn or damaged, they can be replaced and the turntable can continue to be used without having to re-prepare the entire replacement part, thus saving materials.

[0010] Another objective of this invention is to facilitate operators in quickly selecting a protrusion that matches the propeller pressure ring by setting up identification plates at symmetrical positions on the protrusions, with the identification plates recording information such as the aperture and size of the protrusions.

[0011] To solve the above problems and achieve the objectives of the invention, this utility model provides a propeller assembly / disassembly aid by adopting the following design structure and the following technical solution:

[0012] A propeller assembly / disassembly tool includes an assembly body (1) for disassembling a propeller (2), the assembly body (1) comprising:

[0013] The outer shell (11) has several symmetrical first adjustment mechanisms (14) connected to its ends, a rotating mechanism (13) connected to the center of its end face, and a handle (111) fixedly connected to the middle part. The outer shell (11) drives the first adjustment mechanism (14) to rotate by operating the handle (111).

[0014] The inner shell (12) includes a ring (122) and a rotating cover (121) extending into the outer shell (11). The ring (122) has several arc-shaped grooves (1221) arranged at equal distances from the center to the circumference.

[0015] Rotating mechanism (13) is connected to inner shell (12) on the outside of outer shell (11), and drives inner shell (12) to rotate through rotating mechanism (13);

[0016] The first adjustment mechanism (14) is connected to the second adjustment mechanism (15) at its end. The first adjustment mechanism (14) and the inner shell (12) work together to achieve the extension and retraction adjustment of the second adjustment mechanism (15).

[0017] The second adjustment mechanism (15) is provided with several protrusions (152) of different sizes. The protrusions (152) that match the process holes on the pressure ring (21) of the propeller (2) are selected by rotating the turntable (151).

[0018] Locking mechanism (16) locks the turntable (151) of the second adjusting mechanism (15);

[0019] The operating handle (111) drives the first adjustment mechanism (14), which in turn drives the second adjustment mechanism (15) to disassemble the pressure ring (21).

[0020] Preferably, the rotating mechanism (13) includes:

[0021] Rotating rod (131), one end of rotating rod (131) passes through outer shell (11) and is fixedly connected to inner shell (12), and the other end is fixedly connected to worm gear (132);

[0022] The worm gear (132) rotates under the linkage of the worm (133);

[0023] The worm (133) is fixed to the outer shell (11) by symmetrically arranged support blocks (1332). One end of the worm is provided with a rocker wheel (1331). The rotation of the worm (133) is achieved by rotating the rocker wheel (1331).

[0024] Preferably, the first adjustment mechanism (14) includes: a sleeve (141), which is fixedly connected to the outer shell (11), and is a hollow tubular structure with a strip-shaped opening (1411).

[0025] A sleeve rod (142) is fitted inside a sleeve (141). A push pin (1421) is provided on the sleeve rod (142). The push pin (1421) passes through a strip opening (1411) and is embedded in an arc groove (1221).

[0026] A fixed shaft (143) is provided at the end of the sleeve rod (142) and is connected to the second adjustment mechanism (15);

[0027] The rotation of the ring (122) causes the push pin (1421) to rise or fall under the drive of the arc groove (1221), thereby enabling the first adjustment mechanism (14) to drive the second adjustment mechanism (15) to extend and retract.

[0028] Preferably, the second adjustment mechanism (15) includes:

[0029] Turntable (151) is connected to the first adjusting mechanism (14) via a fixed shaft (143) and rotates around the fixed shaft (143);

[0030] The protrusion (152) consists of several cylindrical structures of different specifications, which are detachably connected to the groove on the side wall of the turntable (151);

[0031] A retaining ring (153) is interference-fitted with a fixed shaft (143) to limit the turntable (151) and prevent the turntable (151) from falling off the fixed shaft (143);

[0032] The side wall of the fixing ring (153) is provided with a limiting groove (1531) symmetrical to the protrusion (152). The limiting groove (1531) engages with the locking mechanism (16) to fix the turntable (151).

[0033] Preferably, the locking mechanism (16) includes:

[0034] Limiting block (161), one end of the limiting block (161) is engaged in the limiting groove (1531), and the other end is connected to the guide rod (162);

[0035] The guide rod (162) has a T-shaped structure. One end passes through the hole in the support plate (164) and connects to the limiting block (161), while the other end rests on the support plate (164).

[0036] Spring (163) is sleeved on the side wall of guide rod (162), one end of which contacts the connecting end of limit block (161), and the other end contacts the support plate (164) to support limit block (161);

[0037] Support plate (164) is fixedly connected to the end of turntable (151).

[0038] Preferably, the handle (111) is symmetrically arranged at both ends of the outer shell (11) and has a tubular structure, which facilitates the operator to apply force.

[0039] Preferably, the radius of the turntable (151) is greater than the thickness of the ring (122).

[0040] Preferably, the turntable (151) further includes:

[0041] The sign (17) is set on the end face of the turntable (151) and is symmetrical to the protrusion (152). The diameter and size of the protrusion (152) are recorded on the sign (17).

[0042] Preferably, the working end of the protrusion (152) is provided with a chamfer to facilitate embedding into the groove of the pressure ring (21).

[0043] Preferably, the limiting block (161) further includes a pull rod (1611), which is fixedly connected to the center of the end face of the limiting block (161) to facilitate the operation of the limiting block (161) to disengage from the limiting groove (1531).

[0044] The working principle is as follows: Before using the propeller assembly / disassembly tool with the above-mentioned design structure, the operator must first assemble the propeller assembly / disassembly tool:

[0045] During assembly, the operator first connects the handle (111), sleeve (141), and worm gear (133) to the outer casing (11), inserts the rotating cover (121) into the outer casing (11), inserts the sleeve rod (142) into the sleeve (141), and makes the push pin (1421) engage in the slotted opening (1411). By adjusting the position, the push pin (1421) is embedded in the arc groove (1221), the rotating rod (131) passes through the center of the end face of the outer casing (11), and the rotating cover (121) and worm gear (132) are connected at both ends. The worm gear (132) meshes with the worm gear (133), and the turntable (151) and the fixed shaft (143) are connected at one end of the sleeve rod (142). Then, protrusions (152) of different diameters are installed in the grooves on the side wall of the turntable (151), and a label (17) symmetrically arranged with the protrusions (152) is affixed to the end face of the turntable (151). The label (17) displays information such as the diameter of the protrusions (152). Thus, the assembly of this utility model is completed.

[0046] When in use, the operator pulls the limiting block (161) out of the limiting groove (1531) next to the propeller (2) and rotates the turntable (151) to select the protrusion (152) that matches the process hole of the pressure ring (21). Then, the operator turns the rocker wheel (1331) to drive the worm (133), which in turn drives the worm wheel (132), the rotating rod (131), the rotating cover (121), and the ring (122) to rotate. During the rotation of the ring (122), the push pin (1421) moves from the center to the circumference in the arc groove (1221), causing the push pin (1421) to drive the sleeve rod (142) to extend out from the sleeve (141), thereby driving the second adjustment mechanism (15) to lift, so as to adapt to a larger hole spacing. When the predetermined hole spacing is reached, the operator pushes the handle (111) towards the propeller (2) so that the protrusion (152) is embedded in the process hole of the pressure ring (21). If it is not fully embedded, the operator can use a tool to tap the outer shell (11) to make the protrusion (152) fully embedded in the process hole of the pressure ring (21). Then the operator turns the handle (111) counterclockwise, so that the handle (111) drives the outer shell (11), thereby driving the first adjustment mechanism (14) and the second adjustment mechanism (15) to rotate counterclockwise, so that the pressure ring (21) separates from the propeller (2).

[0047] During installation, the operator repeats the above operation to insert the protrusion (152) into the process hole of the pressure ring (21), and then completes the installation of the pressure ring (21) by rotating the handle (111) clockwise.

[0048] Finally, the operator stores the utility model in a fixed position for future use.

[0049] In summary, compared with the prior art, the benefits of this utility model are as follows:

[0050] 1. This utility model is designed with a ring and a first adjustment mechanism linked together. The rotation of the ring drives the push pin, which in turn drives the sleeve rod to extend or shorten from inside the sleeve, thereby achieving the function of matching the hole spacing of the pressure ring process of different specifications of underwater vehicles.

[0051] 2. This utility model features a turntable with several protrusions of different diameters and sizes on its side wall. By rotating the turntable, the protrusions can be adjusted to match the diameter of the process holes on the pressure ring, thus achieving the function of matching the diameter of the process holes on the pressure rings of different specifications of underwater vehicles.

[0052] 3. The protrusion and the turntable of this utility model are detachably connected. After long-term use, if the protrusion is worn or damaged, the operator does not need to replace the entire component. He only needs to remove the damaged protrusion and replace it with a new one of the same size, thus avoiding waste of materials.

[0053] 4. This utility model is equipped with an identification plate, which is placed next to the protrusion. The operator can quickly adjust the protrusion to match the process hole of the pressure ring based on the information on the protrusion. Attached Figure Description

[0054] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0055] Figure 1 This is one of the schematic diagrams showing the usage state of this utility model;

[0056] Figure 2 This is the second schematic diagram of the usage state of this utility model;

[0057] Figure 3 This is the third schematic diagram of the usage state of this utility model;

[0058] Figure 4 This is the fourth schematic diagram of the usage state of this utility model;

[0059] Figure 5 This is the fifth schematic diagram of the usage state of this utility model;

[0060] Figure 6 This is one of the overall structural schematic diagrams of this utility model;

[0061] Figure 7 This is the second schematic diagram of the overall structure of this utility model;

[0062] Figure 8This is the third schematic diagram of the overall structure of this utility model;

[0063] Figure 9 This is the fourth schematic diagram of the overall structure of this utility model;

[0064] Figure 10 This is a schematic diagram of the connection relationship of the sleeve rod (142) of this utility model;

[0065] Figure 11 This is a schematic diagram of the connection relationship of the inner shell (12) of this utility model;

[0066] Figure 12 This is one of the schematic diagrams showing the connection relationship of the second adjustment mechanism (15) of this utility model;

[0067] Figure 13 This is the second schematic diagram of the connection relationship of the second adjustment mechanism (15) of this utility model;

[0068] Figure 14 This is a schematic diagram showing the connection relationship between the turntable (151) and the protrusion (152) of this utility model;

[0069] Figure 15 This is a schematic diagram of the second adjustment mechanism (15) of this utility model in use;

[0070] Figure 16 This is a schematic diagram of the structure of Embodiment 5 of this utility model;

[0071] In the diagram, the following labels are used: 1—Assistive device body, 11—Outer shell, 12—Inner shell, 13—Rotating mechanism, 14—First adjustment mechanism, 15—Second adjustment mechanism, 16—Locking mechanism, 17—Identification plate, 111—Handle, 121—Rotating cover, 122—Ring, 1221—Arc groove, 131—Rotating rod, 132—Worm gear, 133—Worm, 1331—Rocker wheel, 1332—Support block, 141—Sleeve, 142—Sleeve rod, 1411—Strip opening, 1421—Push pin, 143—Fixed shaft, 151—Turntable, 152—Protrusion, 153—Fixed ring, 1531—Limiting groove, 161—Limiting block, 162—Guide rod, 163—Spring, 164—Support plate, 1611—Pull rod, 17—Identification plate;

[0072] 2—Propeller, 21—Pressure ring. Detailed Implementation

[0073] To make the technical means, inventive features, and achieved objectives and effects of this utility model readily understandable, the technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0074] Example 1

[0075] like Figures 1 to 16 The illustrated propeller assembly / disassembly tool includes an assembly body 1 for disassembling a propeller 2, the assembly body 1 comprising:

[0076] The outer shell 11 has several symmetrical first adjustment mechanisms 14 connected to its ends, a rotating mechanism 13 connected to the center of its end face, and a handle 111 fixedly connected to its middle part. The outer shell 11 drives the first adjustment mechanisms 14 to rotate by operating the handle 111.

[0077] The inner shell 12 includes a ring 122 and a rotating cover 121 extending into the outer shell 11. The ring 122 has several arc-shaped grooves 1221 arranged at equal distances from the center to the circumference.

[0078] Rotating mechanism 13 is connected to inner shell 12 on the outside of outer shell 11, and drives inner shell 12 to rotate through rotating mechanism 13;

[0079] The first adjustment mechanism 14 is connected at one end to the second adjustment mechanism 15. The first adjustment mechanism 14 is linked with the inner shell 12 to realize the extension and retraction adjustment of the second adjustment mechanism 15.

[0080] The second adjustment mechanism 15 is provided with several protrusions 152 of different sizes. The protrusions 152 that match the process holes on the pressure ring 21 of the propeller 2 are selected by rotating the turntable 151.

[0081] Locking mechanism 16 locks the turntable 151 of the second adjusting mechanism 15.

[0082] The operating handle 111 drives the first adjustment mechanism 14, which in turn drives the second adjustment mechanism 15 to disassemble the pressure ring 21.

[0083] Before using the propeller assembly / disassembly tool with the above-mentioned design structure, the propeller assembly / disassembly tool must first be assembled:

[0084] During assembly, the operator first connects the handle 111, sleeve 141, and worm gear 133 to the outer casing 11, and then inserts the rotating cover 121 into the outer casing 11, as follows. Figure 11As shown, insert the sleeve 142 into the sleeve 141, so that the push pin 1421 is engaged in the strip opening 1411. Adjust the position so that the push pin 1421 is embedded in the arc groove 1221, as shown. Figure 9 As shown, the rotating rod 131 passes through the center of the end face of the outer casing 11, and is connected at both ends to the rotating cover 121 and the worm gear 132. The worm gear 132 meshes with the worm 133. The turntable 151 and the fixed shaft 143 are connected at one end of the sleeve rod 142. Then, protrusions 152 of different diameters are installed in the grooves on the side wall of the turntable 151, and identification plates 17 symmetrically arranged with the protrusions 152 are affixed to the end face of the turntable 151. The identification plates 17 display information such as the diameter of the protrusions 152. This completes the assembly of this utility model.

[0085] In use, the operator stands beside the propeller 2 and adjusts the second adjustment mechanism 15 by unlocking and locking the mechanism 16. This involves pulling the limit block 161 out of the limit groove 1531 and rotating the turntable 151 to select the protrusion 152 that matches the diameter of the process hole in the pressure ring 21. Figure 15 As shown. Then, the operator rotates the rocker wheel 1331, which drives the worm gear 133, thereby driving the worm wheel 132, the rotating rod 131, the rotating cover 121, and the ring 122 to rotate. During the rotation of the ring 122, the push pin 1421 moves along the circumference from the center to the circumference within the arc groove 1221, causing the push pin 1421 to drive the sleeve rod 142 to extend out of the sleeve 141, thereby driving the second adjusting mechanism 15 to lift, as shown. Figure 8 As shown, this is to accommodate a larger hole spacing. Once the predetermined hole spacing is reached, the operator pushes the handle 111 towards the propeller 2, causing the protrusion 152 to embed into the process hole of the pressure ring 21. If it is not fully embedded, the operator can use a tool to tap the outer shell 11 to make the protrusion 152 fully embedded into the process hole of the pressure ring 21. Figure 2 As shown. Then, the operator rotates handle 111 counterclockwise, causing handle 111 to drive housing 11, which in turn drives the first adjusting mechanism 14 and the second adjusting mechanism 15 to rotate counterclockwise. This causes the protrusion 152 to drive the pressure ring 21 to rotate counterclockwise, separating it from the propeller 2, as shown. Figure 5 As shown, after disassembly, the operator can remove the auxiliary body 1 from the pressure ring 21 and continue the operation.

[0086] During installation, the operator repeats the above operation to insert the protrusion 152 into the process hole of the pressure ring 21, and then rotates the handle 111 clockwise to make the handle 111 drive the outer shell 11, the first adjustment mechanism 14, the second adjustment mechanism 15 and the pressure ring 21 to rotate clockwise to complete the installation of the pressure ring 21. Then, the auxiliary body 1 is removed to complete the installation operation.

[0087] Finally, the operator regularly checks the wear of the protrusion 152, and replaces it in time if wear is found to ensure the stability of the disassembly and assembly effect. The utility model is then stored in a fixed position for future use.

[0088] Example 2

[0089] Furthermore, the rotating mechanism 13 includes:

[0090] Rotating rod 131 passes through outer shell 11 and is fixedly connected to inner shell 12 at one end, and fixedly connected to worm gear 132 at the other end;

[0091] Worm gear 132 rotates under the linkage of worm 133;

[0092] The worm gear 133 is fixed to the outer shell 11 by symmetrically arranged support blocks 1332. One end of the worm gear 133 is provided with a rocker wheel 1331. The rotation of the worm gear 133 is achieved by rotating the rocker wheel 1331.

[0093] Furthermore, the first adjustment mechanism 14 includes: a sleeve 141, which is fixedly connected to the outer shell 11, and has a hollow tubular structure with a strip-shaped opening 1411.

[0094] A sleeve rod 142 is fitted inside a sleeve 141. A push pin 1421 is provided on the sleeve rod 142. The push pin 1421 passes through a strip opening 1411 and is embedded in an arc groove 1221.

[0095] A fixed shaft 143 is located at the end of the sleeve rod 142 and is connected to the second adjustment mechanism 15.

[0096] The rotation of the ring 122 causes the push pin 1421 to rise or fall under the drive of the arc groove 1221, thereby enabling the first adjustment mechanism 14 to drive the second adjustment mechanism 15 to extend and retract.

[0097] In this utility model, such as Figure 8 As shown, the operator operates the rocker wheel 1331 at the end face of the outer casing 11, causing the rocker wheel 1331 to drive the worm gear 133 and worm wheel 132 to rotate the ring 122. During the rotation, the push pin 1421, which is fixedly connected to the sleeve rod 142, moves in the arc groove 1221. When the push pin 1421 moves from the center to the circumference along the arc groove 1221, the push pin 1421 drives the sleeve rod 142 to extend out of the sleeve 141. The increase in the distance between the coaxial second adjustment mechanisms 15 increases the hole spacing of the pressure ring 21. When the push pin 1421 moves from the circumference to the center along the arc groove 1221, the push pin 1421 drives the sleeve rod 142 to retract into the sleeve 141, thereby reducing the hole spacing of the pressure ring 21.

[0098] Example 3

[0099] Furthermore, the second adjustment mechanism 15 includes:

[0100] Turntable 151 is connected to the first adjusting mechanism 14 via a fixed shaft 143 and rotates around the fixed shaft 143.

[0101] The protrusion 152 consists of several cylindrical structures of different specifications, which are detachably connected to the groove on the side wall of the turntable 151.

[0102] The retaining ring 153 is interference-fitted with the fixed shaft 143 to limit the turntable 151 and prevent the turntable 151 from falling off the fixed shaft 143;

[0103] The side wall of the fixing ring 153 is provided with a limiting groove 1531 symmetrical to the protrusion 152. The limiting groove 1531 engages with the locking mechanism 16 to fix the turntable 151.

[0104] In this utility model, the turntable 151 is connected to the first adjustment mechanism 14 via the fixed shaft 143 and rotates around the fixed shaft 143 with the fixed shaft 143 as the center, causing the protrusions 152 of different sizes connected to the side wall of the turntable 151 to rotate. After rotation, the protrusion 152 that matches the process hole of the pressure ring 21 is selected and embedded therein. Then, the rotation of the turntable 151 is locked by the locking mechanism 16, so that the pressure ring 21 can be installed or removed.

[0105] Furthermore, the locking mechanism 16 includes:

[0106] Limiting block 161, one end of which is engaged in limiting groove 1531, and the other end is connected to guide rod 162;

[0107] Guide rod 162 has a T-shaped structure. One end passes through the hole provided in the support plate 164 and is connected to the limiting block 161. The other end is placed on the support plate 164.

[0108] Spring 163 is sleeved on the side wall of guide rod 162, with one end in contact with the connecting end of limit block 161 and the other end in contact with support plate 164 to support limit block 161;

[0109] Support plate 164 is fixedly connected to the end of turntable 151.

[0110] In this utility model, such as Figure 12As shown, a guide rod 162 and a spring 163 are provided between the support plate 164 and the limiting block 161. The support plate 164 is fixed on the turntable 151. The guide rod 162 limits the limiting block 161, so that the limiting block 161 can only move along the direction of the guide rod 162. A spring 163 is provided on the guide rod 162, so that the limiting block 161 is in close contact with the limiting groove 1531 under the action of the spring 163, thereby limiting the second adjustment mechanism 15 and preventing the rotation of the turntable 151 during operation from affecting the disassembly and assembly.

[0111] Furthermore, the handles 111 are symmetrically arranged at both ends of the outer shell 11 and have a tubular structure, which facilitates the operator to apply force.

[0112] Furthermore, the radius of the turntable 151 is greater than the thickness of the ring 122.

[0113] Furthermore, the turntable 151 also includes:

[0114] The sign 17 is located on the end face of the turntable 151 and is symmetrical to the protrusion 152. The diameter and size of the protrusion 152 are recorded on the sign 17.

[0115] In this utility model, such as Figure 14 As shown, the sign 17 allows operators to quickly confirm information such as the diameter of the protrusion 152, and quickly adjust it to the required protrusion 152 for disassembly and assembly, thus improving work efficiency.

[0116] Furthermore, the working end of the protrusion 152 is chamfered to facilitate embedding into the groove of the pressure ring 21.

[0117] Furthermore, the limiting block 161 also includes a pull rod 1611, which is fixedly connected to the center of the end face of the limiting block 161, so as to facilitate the operation of the limiting block 161 to disengage from the limiting groove 1531.

[0118] In this utility model, such as Figure 12 As shown, the limiting block 161 is equipped with a pull rod 1611. When the operator rotates the turntable 151, the pull rod 1611 is pulled towards the support plate 164. The pull rod 1611 causes the limiting block 161 to separate from the limiting groove 1531. Then, the turntable 151 is rotated to adjust the protrusion 152. After the adjustment is completed, the protrusion is released.

[0119] Pull rod 1611 and limit block 161, under the action of spring 163, once again come into close contact with limit groove 1531, restricting the rotation of turntable 151.

[0120] Example 4

[0121] This embodiment 4 is the same as embodiments 1 to 3, except that the handle 111 is provided with an integrated or separate anti-slip structure, and the anti-slip structure is provided with several ring-shaped or granular protective protrusions or strip-shaped anti-slip patterns.

[0122] In this utility model, the handle 111 is provided with an anti-slip structure to increase the friction between the operator's hand and the handle 111, making it easier to bear force and ensuring that the operator's hand is not worn after long-term use.

[0123] Example 5

[0124] This embodiment 5 is the same as embodiments 1 to 4, except that the outer wall of the fixed shaft 143 has symmetrically arranged grooves. These grooves cooperate with the protrusions in the hole of the fixed ring 153 to limit the fixed ring 153 and prevent the fixed ring 153 from loosening and rotating with the rotating disk 151 after long-term use, which would cause the locking mechanism 16 to fail.

[0125] In summary, a more specific embodiment of this utility model is as follows:

[0126] like Figure 6 As shown, a propeller assembly / disassembly tool includes an outer shell 11, an inner shell 12, a rotating mechanism 13, a first adjusting mechanism 14, a second adjusting mechanism 15, a locking mechanism 16, and an identification plate 17.

[0127] Before use, the operator first connects the handle 111, sleeve 141, and worm gear 133 to the outer casing 11, and then inserts the rotating cover 121 into the outer casing 11, as follows. Figure 11 As shown, insert the sleeve 142 into the sleeve 141, so that the push pin 1421 is engaged in the strip opening 1411. Adjust the position so that the push pin 1421 is embedded in the arc groove 1221, as shown. Figure 9 As shown, the rotating rod 131 passes through the center of the end face of the outer casing 11, and is connected at both ends to the rotating cover 121 and the worm gear 132. The worm gear 132 meshes with the worm 133. The turntable 151 and the fixed shaft 143 are connected at one end of the sleeve rod 142. Then, protrusions 152 of different diameters are installed in the grooves on the side wall of the turntable 151, and identification plates 17 symmetrically arranged with the protrusions 152 are affixed to the end face of the turntable 151. The identification plates 17 display information such as the diameter of the protrusions 152. This completes the assembly of this utility model.

[0128] In use, the operator stands beside the propeller 2 and adjusts the second adjustment mechanism 15 by unlocking and locking the mechanism 16. This involves pulling the limit block 161 out of the limit groove 1531 and rotating the turntable 151 to select the protrusion 152 that matches the diameter of the process hole in the pressure ring 21. Figure 15As shown. Then, the operator rotates the rocker wheel 1331, which drives the worm gear 133, thereby driving the worm wheel 132, the rotating rod 131, the rotating cover 121, and the ring 122 to rotate. During the rotation of the ring 122, the push pin 1421 moves along the circumference from the center to the circumference within the arc groove 1221, causing the push pin 1421 to drive the sleeve rod 142 to extend out of the sleeve 141, thereby driving the second adjusting mechanism 15 to lift, as shown. Figure 8 As shown, this is to accommodate a larger hole spacing. Once the predetermined hole spacing is reached, the operator pushes the handle 111 towards propeller 2, as shown. Figure 1 As shown, the protrusion 152 is inserted into the process hole of the pressure ring 21. If it is not fully inserted, the operator can use a tool to tap the outer shell 11 to make the protrusion 152 fully inserted into the process hole of the pressure ring 21. Figure 2 As shown. Then, the operator rotates handle 111 counterclockwise, causing handle 111 to drive housing 11, thereby causing the first adjusting mechanism 14 and the second adjusting mechanism 15 to rotate counterclockwise. This causes the protrusion 152 to drive the pressure ring 21 to rotate counterclockwise, separating it from the propeller 2, as shown. Figure 5 As shown, after disassembly, the operator can remove the auxiliary body 1 from the pressure ring 21 and continue the operation.

[0129] During installation, the operator repeats the above operation to insert the protrusion 152 into the process hole of the pressure ring 21, and then rotates the handle 111 clockwise to make the handle 111 drive the outer shell 11, the first adjustment mechanism 14, the second adjustment mechanism 15 and the pressure ring 21 to rotate clockwise to complete the installation of the pressure ring 21. Then, the auxiliary body 1 is removed to complete the installation operation.

[0130] Finally, the operator regularly checks the wear of the protrusion 152, and replaces it in time if wear is found to ensure the stability of the disassembly and assembly effect. The utility model is then stored in a fixed position for future use.

[0131] In this utility model, the connection is either a fixed connection or a detachable connection. The fixed connection is either a welded connection or a directly machined integral structure, while the detachable connection is either an internal or external threaded connection, a snap-fit ​​connection, or a plug-in structure connection.

[0132] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A propeller dismounting aid, comprising an aid body (1) for dismounting a propeller (2), characterized in that, The auxiliary tool body (1) comprises: a shell (11), the end of the shell (11) is connected with a plurality of symmetrical first adjusting mechanisms (14), the center of the end face is connected with a rotating mechanism (13), the middle part is fixedly connected with a handle (111), the shell (11) drives the first adjusting mechanism (14) to rotate by operating the handle (111); an inner shell (12), the inner shell (12) comprises a circular ring (122) and a rotating cover (121) extending to the inside of the shell (11), a plurality of arc-shaped grooves (1221) are arranged at equal distances from the center to the circumference on the circular ring (122); the rotating mechanism (13) is connected with the inner shell (12) outside the shell (11), and the inner shell (12) is driven to rotate by the rotating mechanism (13); the first adjusting mechanism (14) is connected with the second adjusting mechanism (15) at the end, and the first adjusting mechanism (14) is linked with the inner shell (12) to realize the telescopic adjustment of the second adjusting mechanism (15); the second adjusting mechanism (15) is provided with a plurality of protrusions (152) of different sizes, and the protrusions (152) matched with the process holes on the pressure ring (21) of the propeller (2) are selected by rotating the rotating disc (151); the locking mechanism (16) locks the rotating disc (151) of the second adjusting mechanism (15); wherein, the operating handle (111) drives the first adjusting mechanism (14), thereby driving the second adjusting mechanism (15) to realize the disassembly of the pressure ring (21).

2. The propeller dismounting aid according to claim 1, characterized in that The rotating mechanism (13) comprises: a rotating rod (131), the rotating rod (131) penetrates through the shell (11) and is fixedly connected with the inner shell (12) at one end and fixedly connected with a worm wheel (132) at the other end; the worm wheel (132) rotates under the linkage of a worm (133); the worm (133) is fixed on the shell (11) through the symmetrical support blocks (1332), one end of the worm (133) is provided with a rocking wheel (1331), and the rotation of the worm (133) is realized by rotating the rocking wheel (1331).

3. The propeller dismounting aid according to claim 1, characterized in that The first adjusting mechanism (14) comprises: a sleeve pipe (141), the sleeve pipe (141) and the shell (11) are fixedly connected, and the sleeve pipe (141) is a hollow tubular structure and is provided with a strip-shaped opening (1411); a sleeve rod (142), the sleeve rod (142) is sleeved in the sleeve pipe (141), the sleeve rod (142) is provided with a pushing pin (1421), and the pushing pin (1421) is embedded in the arc-shaped groove (1221) through the strip-shaped opening (1411); a fixed shaft (143), the fixed shaft (143) is arranged at the end of the sleeve rod (142) and connected with the second adjusting mechanism (15); wherein, the rotation of the circular ring (122) drives the pushing pin (1421) to rise or fall under the driving of the arc-shaped groove (1221), so that the first adjusting mechanism (14) drives the second adjusting mechanism (15) to telescope.

4. The propeller dismounting aid according to claim 3, characterized in that The second adjusting mechanism (15) comprises: A rotating disc (151) is connected with the first adjusting mechanism (14) through a fixed shaft (143) and rotates around the fixed shaft (143); A convex (152) is a plurality of cylindrical structures with different specifications and is detachably connected with the groove of the side wall of the rotating disc (151); A fixed ring (153) is connected with the fixed shaft (143) in an interference fit, limits the rotating disc (151), and prevents the rotating disc (151) from falling off the fixed shaft (143); The side wall of the fixed ring (153) is provided with a limiting groove (1531) symmetrical to the convex (152), the limiting groove (1531) is clamped with the locking mechanism (16), and the rotating disc (151) is fixed.

5. The propeller dismounting aid according to claim 4, characterized in that The locking mechanism (16) comprises: A limiting block (161) is clamped in the limiting groove (1531) at one end and is connected with a guide rod (162) at the other end; The guide rod (162) is a T-shaped structure, one end of which is connected with the limiting block (161) through a hole provided in a support plate (164), and the other end is arranged on the support plate (164); A spring (163) is sleeved on the side wall of the guide rod (162), one end of which is in contact with the connecting end of the limiting block (161), and the other end is in contact with the support plate (164), supporting the limiting block (161); The support plate (164) is fixedly connected to the end of the rotating disc (151).

6. The propeller dismounting aid according to claim 1, characterized in that The handle (111) is symmetrically arranged at both ends of the shell (11) and is a tubular structure, facilitating the force exertion of the operator.

7. The propeller dismounting aid according to claim 4, characterized in that The radius of the rotating disc (151) is greater than the thickness of the circular ring (122).

8. The propeller dismounting aid according to claim 4, characterized in that The rotating disc (151) further comprises: A signboard (17) is arranged on the end face of the rotating disc (151) and is symmetrical to the convex (152), and the signboard (17) records the diameter and size of the convex (152).

9. The propeller dismounting aid according to claim 4, characterized in that The working end of the convex (152) is provided with a chamfer, which facilitates embedding into the groove of the compression ring (21).

10. The propeller dismounting aid according to claim 5, characterized in that The limiting block (161) further comprises: A pull rod (1611) is fixedly connected to the center of the end face of the limiting block (161), which facilitates the disengagement of the limiting block (161) from the limiting groove (1531).

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