Lifting device and top flow machine with lifting function

Abstract

The utility model relates to the technical field of top flow machine provides a kind of lifting device and the top flow machine with lifting function, comprising: pedestal, with the installation cavity for installing a lifting shaft, the both ends of lifting shaft respectively extend to the outside of pedestal;Two lifting drive components, along the axial symmetry of lifting shaft, are arranged on the both sides of lifting shaft, each lifting drive component includes rotatably supported on pedestal and the friction wheel of abutting with lifting shaft and the power component for making the rotation of friction wheel to drive lifting shaft lifting movement;And at least one elastic element, connected with lifting drive component and used for pressing friction wheel on lifting shaft.Compared with prior art, structure is simple, small in size, small in space occupation, and has the rotation locking function to lifting shaft.

Description

Technical Field

[0001] This utility model relates to the technical field of top flow machines, and in particular to a lifting device and a top flow machine with lifting function. Background Technology

[0002] A jacking propeller is a device commonly used for ship propulsion. It is a small marine propulsion unit powered by a battery, with the extended end of the motor shaft directly driving the propeller. It not only reduces the resistance of the water flow to the hull but also, to some extent, counteracts the ship's weight, thus ensuring the hull remains stable in ocean currents. Jacking propellers are available in versions with and without automatic lifting. In jacking propellers with an automatic lifting structure, the main components are the main shaft (hereinafter referred to as the lifting shaft for a standardized technical term) and the lifting device. Traditional lifting devices use a gear and rack structure or a steel cable structure to achieve the lifting movement of the lifting shaft, but these structures are complex, noisy, and lack a steering self-locking function. Utility Model Content

[0003] One of the objectives of this utility model is to provide a lifting device to solve the technical problems of complex structure and excessive size of existing lifting devices.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a lifting device, comprising: a base having a mounting cavity for mounting a lifting shaft, the two ends of the lifting shaft extending to the outside of the base; two lifting drive assemblies symmetrically arranged on both sides of the lifting shaft along the axial direction of the lifting shaft, each lifting drive assembly including a friction wheel rotatably supported on the base and abutting against the lifting shaft, and a power component for rotating the friction wheel to drive the lifting shaft to move up and down; and at least one elastic element connected to the lifting drive assembly and used to press the friction wheel against the lifting shaft.

[0005] The technical solution of this utility model has the following advantages: The lifting device includes a base and a lifting drive assembly. The lifting drive assembly is symmetrically arranged on both sides of the lifting shaft. The lifting drive assembly includes a friction wheel and a power component. The friction wheel abuts against the lifting shaft. An elastic force is applied by an elastic element to press the friction wheel against the lifting shaft. In this way, through the action of the elastic element, the two friction wheels clamp the lifting shaft. Under the drive of the power component, the friction wheel rotates and realizes the lifting shaft rising and falling relative to the base. It can also make the lifting shaft hover at any position. The lifting stroke of the lifting shaft has a greater degree of freedom. The structure is simple, the size is small, the space occupation is small, and it has a rotation locking function for the lifting shaft.

[0006] In some embodiments, the outer wall of the friction wheel is provided with a radially inwardly recessed friction groove that extends along the entire circumference of the friction wheel.

[0007] In some embodiments, the lifting drive assembly further includes a swing bracket pivotally attached to the base, with a friction wheel rotatably mounted on the swing bracket.

[0008] In some embodiments, the elastic element is a tension spring, and the two ends of the tension spring are respectively connected to two swing brackets.

[0009] In some embodiments, the number of elastic elements is two, which are arranged symmetrically on both sides of the lifting shaft along the axial direction of the lifting shaft.

[0010] In some embodiments, the power component is connected to the swing bracket via an adapter plate. The power component has a rotating shaft, and the adapter plate has a through hole for the rotating shaft to pass through. The rotating shaft is coaxially arranged with the friction wheel and is connected in a way that prevents relative rotation.

[0011] In some embodiments, the lifting drive assembly further includes an anti-detachment bracket, which is sleeved on the outside of the power component and fixedly connected to the adapter plate.

[0012] In some embodiments, a separation component is provided between the two lifting drive components for moving the two friction wheels away from the lifting shaft.

[0013] In some embodiments, a through groove is formed on the base extending axially along the lifting shaft for the friction wheel to contact the lifting shaft.

[0014] Another objective of this utility model is to provide a top flow machine with lifting function, which solves the technical problems of complex lifting structure and large equipment size in the prior art.

[0015] To achieve this objective, the present invention provides a top flow machine with lifting function, including a lifting shaft, and further including the aforementioned lifting device. The lifting device provides a base, and the lifting shaft is disposed through the base.

[0016] This top flow machine with lifting function adopts the above-mentioned lifting device, which simplifies the lifting structure and makes the whole machine smaller. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the lifting device and lifting shaft provided in the embodiment of this utility model; Figure 2 for Figure 1 A cross-sectional view of the AA plane; Figure 3 This is a three-dimensional schematic diagram of the lifting device provided in this embodiment of the present invention when the housing is separated from the lifting shaft; Figure 4 for Figure 3 A cross-sectional view of the BB plane; Figure 5This is an exploded view of the lifting device and lifting shaft provided in this embodiment of the utility model. Figure 1 ; Figure 6 This is a three-dimensional schematic diagram of the lifting device and lifting shaft provided in the embodiment of this utility model. Figure 2 .

[0018] Explanation of main component symbols 100-Lifting device; 101-Housing; 10-Base; 10a-Mounting cavity; 11-Upper sleeve; 111-Through groove; 12-Base; 13-Lower sleeve; 131-Mounting hole; 20-Lifting drive assembly; 21-Friction wheel; 211-Friction groove; 22-Power component; 221-Rotating shaft; 222-First connecting hole; 23-Swing bracket; 231-Fourth connecting hole; 24-Pivot shaft; 25-Adapter plate; 251-Through hole; 252-Second connecting hole; 253-Third connecting hole; 254-Sixth connecting hole; 26-Anti-detachment bracket; 261-Fifth connecting hole; 30-Elastic element; 40-Separation assembly; 41-Nut seat; 411-Seventh connecting hole; 42-Push seat; 43-Separation push rod; 200-Lifting shaft. Detailed Implementation

[0019] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0020] To enable those skilled in the art to better understand the technical solution of this utility model, the implementation of this utility model will be described in detail below with reference to the specific accompanying drawings.

[0021] For ease of description, the terms "front," "rear," "left," "right," "up," and "down" used below are consistent with the front, rear, left, right, up, and down directions of the accompanying drawings, but do not limit the structure of this utility model.

[0022] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains. The terms “first,” “second,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “an” or “a” and similar terms do not indicate a limitation of quantity, but rather indicate the presence of at least one.

[0023] like Figures 1 to 3 As shown, the lifting device 100 provided in this embodiment includes: a base 10 having a mounting cavity 10a for mounting a lifting shaft 200, with both ends of the lifting shaft 200 extending to the outside of the base 10; two lifting drive assemblies 20 symmetrically arranged on both sides of the lifting shaft 200 along the axial direction of the lifting shaft 200, each lifting drive assembly 20 including a friction wheel 21 rotatably supported on the base 10 and abutting against the lifting shaft 200 and a power member 22 for rotating the friction wheel 21 to drive the lifting shaft 200 to move up and down; and at least one elastic element 30 connected to the lifting drive assembly 20 and used to press the friction wheel 21 against the lifting shaft 200.

[0024] The aforementioned lifting device 100 includes a base 10 and a lifting drive assembly 20. The lifting drive assembly 20 is symmetrically arranged on both sides of the lifting shaft 200. The lifting drive assembly 20 includes friction wheels 21 and a power component 22. The friction wheels 21 abut against the lifting shaft 200. An elastic force is applied by an elastic element 30 to press the friction wheels 21 against the lifting shaft 200. Thus, through the action of the elastic element 30, the two friction wheels 21 clamp the lifting shaft 200. Driven by the power component 22, the friction wheels 21 rotate and realize the raising and lowering of the lifting shaft 200 relative to the base 10. The lifting shaft 200 can be suspended at any position. The lifting stroke of the lifting shaft 200 has a greater degree of freedom, which simplifies the lifting structure, makes the overall structure more compact, and is easy to operate. In addition, the friction wheels 21 can lock the lifting shaft 200 in the horizontal direction to restrict the rotation of the lifting shaft 200 around its axis, thereby realizing the rotation locking of the lifting shaft 200.

[0025] See Figure 1 and Figure 2 The lifting device 100 provided in this embodiment is connected to the lifting shaft 200 and can drive the lifting shaft 200 to move up and down. The lifting shaft 200 is a hollow shaft, which can be, but is not limited to, a carbon fiber tube. In this embodiment, the lifting device 100 includes a housing 101, through which the lifting shaft 200 is disposed. A handle (not shown) can be installed at the top of the lifting shaft 200, and a pusher (not shown) is connected to the bottom.

[0026] See Figure 2 and Figure 3The lifting device 100 provided in this embodiment includes a housing 101 and a base 10, a lifting drive assembly 20, and an elastic element 30 installed within the housing 101. The base 10 has a mounting cavity 10a for mounting a lifting shaft 200. Both ends of the lifting shaft 200 extend to the outside of the base 10. The lifting drive assembly 20 is supported on the base 10. In this embodiment, the base 10 includes an upper sleeve portion 11, a base portion 12, and a lower sleeve portion 13 connected sequentially from top to bottom. The upper sleeve portion 11, the base portion 12, and the lower sleeve portion 13 can be fixedly connected by screws, welding, or any other existing connection method. The lifting shaft 200 is disposed in the upper sleeve portion 11 and the base portion 12. In the lower sleeve section 13, the two ends of the lifting shaft 200 extend from the top end of the upper sleeve section 11 and the bottom end of the lower sleeve section 13, respectively. There are gaps between the lifting shaft 200 and the inner wall of the upper sleeve section 11, between the lifting shaft 200 and the base 12, and between the lifting shaft 200 and the inner wall of the lower sleeve section 13. The lifting drive assembly 20 is supported on the base 12. The two sides of the base 12 are fixedly connected to the housing 101 by fasteners. The lower sleeve section 13 has a mounting hole 131 on the outside of the housing 101 to facilitate the installation and fixation of the base 10. In this way, the movement of the lifting shaft 200 can be guided by the upper sleeve section 11 and the lower sleeve section 13, and the structural reliability is higher.

[0027] See Figure 2 and Figure 4 In this embodiment, a through groove 111 extending axially along the lifting shaft 200 is formed on the base 10 for the friction wheel 21 to contact the lifting shaft 200. The through groove 111 is formed on the side wall of the upper sleeve portion 11.

[0028] See Figures 2 to 4 The lifting drive assembly 20 provided in this embodiment is symmetrically arranged on both sides of the lifting shaft 200 along the axial direction of the lifting shaft 200. Each lifting drive assembly 20 includes a friction wheel 21 rotatably supported on the base 10 and abutting against the lifting shaft, and a power component 22 for rotating the friction wheel 21 to drive the lifting shaft 200 to move up and down. In this embodiment, the number of lifting drive assemblies 20 is, but not limited to, two. The two lifting drive assemblies 20 are symmetrically arranged on both sides of the upper sleeve portion 11. The friction wheel 21 is, but not limited to, a rubber wheel. The friction wheel 21 is rotatably supported on the base 12 and abuts against the side wall of the lifting shaft 200. The power component 22 is, but not limited to, a motor. It is connected to the friction wheel 21 and can drive the friction wheel 21 to rotate, thereby realizing the lifting of the lifting shaft 200 relative to the base 10.

[0029] Specifically, the lifting drive assembly 20 also includes a swing bracket 23 pivotally attached to the base 10, and a friction wheel 21 is rotatably mounted on the swing bracket 23. The bottom end of the swing bracket 23 is rotatably connected to the base 12 via a pivot shaft 24, the axis of which is parallel to the axis of the friction wheel 21.

[0030] See Figures 3 to 6 The elastic element 30 provided in this embodiment is connected to the lifting drive assembly 20 and is used to generate an elastic force to press the friction wheel 21 onto the lifting shaft 200. In this embodiment, the elastic element 30 is, but is not limited to, a tension spring. Each tension spring is connected to two swing brackets 23 at both ends. In this way, under the elastic tension of the elastic element 30, the two swing brackets 23 can be pulled to the center of the upper sleeve 11, and the friction wheel 21 is pressed onto the lifting shaft 200, thus maintaining the position of the swing brackets 23 and the friction wheel 21.

[0031] In other embodiments, the elastic element 30 can be connected to the base 10 and the swing bracket 23 respectively, or it can be connected to the housing 101 and the swing bracket 23.

[0032] In this embodiment, the number of elastic elements 30 is, but not limited to, two. The two elastic elements 30 are symmetrically arranged on both sides of the lifting shaft 200 along the axial direction of the lifting shaft 200. This ensures the pressing force of the friction wheel 21 on the surface of the lifting shaft 200, making the above structure more reliable and stable.

[0033] See Figures 3 to 6 In this embodiment, the outer wall of the friction wheel 21 is provided with a radially inwardly recessed friction groove 211. The friction groove 211 extends along the entire circumference of the friction wheel 21, and the shape of the friction groove 211 matches the surface of the lifting shaft 200. In this way, the inwardly recessed friction groove 211 contacts the friction wheel 21, changing the contact from point contact to line contact, thereby increasing the contact area, enhancing the friction between the two, and making the structure more stable.

[0034] See Figures 4 to 6The power component 22 provided in this embodiment is connected to the swing bracket 23 through a transition plate 25. The power component 22 has a rotating shaft 221. The transition plate 25 has a through hole 251 for the rotating shaft 221 to pass through. The rotating shaft 221 and the friction wheel 21 are coaxially arranged and connected in a way that prevents them from rotating relative to each other. In this embodiment, the power component 22 is provided with a first connecting hole 222, the adapter plate 25 is provided with a second connecting hole 252 and a third connecting hole 253, and the swing bracket 23 is provided with a fourth connecting hole 231. The first connecting hole 222 of the power component 22 and the second connecting hole 252 of the adapter plate 25, and the third connecting hole 253 of the adapter plate 25 and the fourth connecting hole 231 of the swing bracket 23 are respectively fixedly connected by fasteners such as screws. The rotating shaft 221 of the power component 22 is placed in the inner hole of the friction wheel 21. The rotating shaft 221 has a cross-section that is, but is not limited to, a semi-circular shape. The shape of the inner hole is adapted to the rotating shaft 221, so that the rotating shaft 221 and the friction wheel 21 are connected in a way that prevents relative rotation. Thus, under the drive of the power component 22, the rotating shaft 221 rotates and drives the friction wheel 21 to rotate. It is worth mentioning that the power component 22 is inclined to the lifting shaft 200. The power component 22 is installed through the adapter plate 25, which allows the angle of the power component 22 to be adjusted. This means that the installation angle of the power component 22 can be changed according to the size and specifications of different power components 22 so that it can be installed into the housing 101. The disassembly and assembly of the power component 22 is more convenient, and the overall structure is more compact.

[0035] See Figures 4 to 6 The lifting drive assembly 20 provided in this embodiment also includes an anti-detachment bracket 26, which is sleeved on the outside of the power component 22 and fixedly connected to the adapter plate 25. In this embodiment, the anti-detachment bracket 26 is provided with a fifth connecting hole 261, and the adapter plate 25 is provided with a sixth connecting hole 254. The fifth connecting hole 261 of the anti-detachment bracket 26 and the sixth connecting hole 254 of the adapter plate 25 are fixedly connected by screws or other fasteners. In this way, by using the anti-detachment bracket 26 to sleeve on the power component 22, the installation of the power component 22 can be further secured, preventing the power component 22 from loosening.

[0036] See Figures 3 to 6In this embodiment, a separation component 40 is provided between the two lifting drive components 20 to move the two friction wheels 21 away from the lifting shaft 200. In this embodiment, the separation component 40 includes a nut seat 41 mounted on the top of one of the swing brackets 23, a pusher seat 42 mounted on the top of the other swing bracket 23 and corresponding to the nut seat 41, and a separation push rod 43 threaded to the nut seat 41. It is understood that after turning the separation push rod 43, it can move on the nut seat 41 towards the pusher seat, pushing the two swing brackets 23 outwards, thus separating the friction wheels 21 from the lifting shaft 200, thereby facilitating the replacement and maintenance of the lifting shaft 200. It should be noted that both the nut seat 41 and the pusher seat 42 have a seventh connecting hole 411 for mounting a fixing member (not shown). The two ends of the elastic element 30 are respectively fixed to the screws on the nut seat 41 and the fixing member on the pusher seat 42.

[0037] Please return to the previous page. Figure 1 The top flow machine with lifting function provided in this embodiment includes a lifting shaft 200, and further includes the aforementioned lifting device 100. The lifting device 100 provides a base 10, and the lifting shaft 200 is disposed through the base 10. The lifting shaft 200 has a hollow structure, and the interior is used for passing wires. The lifting shaft 200 can serve as a main pole, or a main pole can be mounted on it. The lifting shaft 200 can be connected to a steering mechanism (not shown) to enable it to rotate.

[0038] The top flow machine with lifting function adopts the above-mentioned lifting device 100, which can realize the raising and lowering of the lifting shaft 200 through the friction wheel 21, thereby realizing the lifting drive of the entire top flow machine, the hovering at any position, and the locking of the steering.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lifting device, characterized in that, include: The base has a mounting cavity for mounting a lifting shaft, the two ends of which extend to the outside of the base. Two lifting drive assemblies are symmetrically arranged on both sides of the lifting shaft along the axial direction of the lifting shaft. Each lifting drive assembly includes a friction wheel rotatably supported on the base and abutting against the lifting shaft, and a power component for rotating the friction wheel to drive the lifting shaft to move up and down. as well as At least one elastic element is connected to the lifting drive assembly and is used to press the friction wheel against the lifting shaft.

2. The lifting device according to claim 1, characterized in that, The outer wall of the friction wheel is provided with a radially inwardly recessed friction groove, which extends along the entire circumference of the friction wheel.

3. The lifting device according to claim 1, characterized in that, The lifting drive assembly also includes a swing bracket pivotally attached to the base, and the friction wheel is rotatably mounted on the swing bracket.

4. The lifting device according to claim 3, characterized in that, The elastic element is a tension spring, and the two ends of the tension spring are respectively connected to the two swing brackets.

5. The lifting device according to claim 3, characterized in that, The number of elastic elements is two, and they are arranged symmetrically on both sides of the lifting shaft along the axial direction of the lifting shaft.

6. The lifting device according to claim 3, characterized in that, The power component is connected to the swing bracket via an adapter plate. The power component has a rotating shaft. The adapter plate has a through hole for the rotating shaft to pass through. The rotating shaft is coaxially arranged with the friction wheel and is connected in a way that prevents relative rotation.

7. The lifting device according to claim 6, characterized in that, The lifting drive assembly also includes an anti-detachment bracket, which is sleeved on the outside of the power component and fixedly connected to the adapter plate.

8. The lifting device according to any one of claims 1 to 6, characterized in that, A separation component is provided between the two lifting drive components for moving the two friction wheels away from the lifting shaft.

9. The lifting device according to any one of claims 1 to 6, characterized in that, The base has a through groove extending axially along the lifting shaft for the friction wheel to contact the lifting shaft.

10. A top flow machine with lifting function, comprising a lifting shaft, characterized in that, It also includes a lifting device as described in any one of claims 1 to 9, the lifting device providing a base on which the lifting shaft is disposed through.

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