Planetary electric hoist

Abstract

The utility model relates to the technical field of electric hoists, in particular to a planetary electric hoist which comprises a shell, a protective outer cover assembly is fixed to one side of the shell through bolts, a planetary speed reducer is fixed to one end of the shell, and a second motor is installed on one side of the planetary speed reducer. One end of the reel is connected with the output end of the planetary speed reducer, the output end of the second motor is connected with a rotating shaft of the planetary speed reducer, the planetary speed reducer and the second motor are located in the protective outer cover assembly, and the energy absorption assemblies are installed on one side of the shell and one side of the protective outer cover assembly respectively. And two driving assemblies are mounted at the top of the shell. The electric hoist can be prevented from colliding with a building in the moving process of the truss through the energy absorption assemblies installed on the two sides of the shell, the electric hoist body can be prevented from being damaged through the energy absorption effect of the energy absorption assemblies, and normal operation of the electric hoist is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of electric hoists, in particular to a planetary electric hoist. Background Art

[0002] Planetary electric hoist is a special type of electric hoist with a unique structure and function. It is usually used in application scenarios that require efficient and precise lifting. Planetary electric hoist uses a planetary gear transmission system to achieve more efficient power transmission and higher operating precision. This design makes the electric hoist more stable during the lifting process and can accurately control the position and speed of the load.

[0003] After searching, the Chinese utility model patent authorization announcement number is CN 215160550 U, and the announcement date is December 14, 2021. A planetary reduction electric hoist is proposed. The article states that "the motor drives the first-stage sun gear to rotate through the output shaft, and the first-stage sun gear drives the first-stage planetary gear to rotate, and then drives the first-stage planetary carrier to rotate, and then drives the second-stage sun gear, the second-stage planetary gear and the second-stage planetary carrier to rotate in turn, and finally transmits the power to the drum through the rotating shaft. After the drum rotates, the lifting rope can be wound up or released, thereby realizing the lifting and lowering of the hook. Among them, the first-stage sun gear is directly driven to rotate by the output shaft of the motor, which reduces the transmission of the coupling and thus shortens the overall length; in addition, the length can be further shortened by driving the inside of the drum through the rotating shaft; in addition, when the ring gear adopts two-stage or multi-stage transmission, the ring gear parameters can be designed to be the same parameters, and fewer planetary gears can be selected for the high-speed stage, and multiple planetary gears can be used for the low-speed stage with high torque. This design method is conducive to the mass production of the ring gear and improves material utilization."

[0004] During use, the above-mentioned electric hoist lacks protective devices on both sides of the main body, and some installation sites will install the supporting frame rails close to the surface of the building. This will cause the two ends of the electric hoist to collide with the walls of the building when moving on the frame rails, and in severe cases, the motor will be damaged and unusable.

[0005] For this purpose, a planetary electric hoist is specially proposed. Utility Model Content

[0006] The purpose of the present utility model is to provide a planetary electric hoist to solve the problems raised in the above-mentioned background technology. To achieve the above-mentioned purpose, the present utility model provides the following technical solutions: a planetary electric hoist, comprising a shell, a protective cover assembly being fixed to one side of the shell by bolts, a planetary reducer being fixed to one end of the shell, a second motor being installed on one side of the planetary reducer, a reel being installed inside the shell through a bearing, one end of the reel being connected to the output end of the planetary reducer, and the output end of the second motor being connected to the rotating shaft of the planetary reducer, the planetary reducer and the second motor being located inside the protective cover assembly, an energy absorption assembly being installed on one side of the shell and the protective cover assembly respectively, and two drive assemblies being installed on the top of the shell.

[0007] Preferably, the energy absorbing assembly includes a support plate, and two support plates are respectively welded to one side of the outer shell and the protective cover assembly.

[0008] Preferably, two supporting slide bars are fixed on one side of the supporting plate, and two sliders are slidably sleeved on the outer sides of the two supporting slide bars, and two springs are respectively sleeved on the outer sides of the two supporting slide bars.

[0009] Preferably, a limiting sliding rod is slidably installed inside the support plate, and an anti-collision plate is welded to one end of the limiting sliding rod.

[0010] Preferably, four connecting rods are hinged on one side of the anti-collision plate, and one end of the four connecting rods is hinged to one end of four sliding blocks respectively.

[0011] Preferably, the driving assembly includes a first side plate and a second side plate, and the first side plate and the second side plate are respectively welded to two sides of the top of the shell.

[0012] Preferably, a first motor is fixed to one side of the first side plate by bolts, and a driving wheel is rotatably mounted on one side of the first side plate, the driving wheel cooperates with the first motor, and a driven wheel is rotatably mounted on one side of the second side plate.

[0013] Preferably, the protective cover assembly includes a cover body, and an electric exhaust fan is fixed to one side of the cover body by bolts, and a ventilation groove is opened on one side of the cover body, a hanging rope is wound around the outside of the reel, and a hook is provided on the outside of the hanging rope.

[0014] Compared with the prior art, the present invention provides a planetary electric hoist with the following beneficial effects:

[0015] Since the planetary reducer and the second motor are installed inside the protective cover assembly, the planetary reducer and the second motor can be protected by the protective cover assembly to prevent the planetary reducer and the second motor from being hit or contaminated by foreign objects during use, thereby increasing the service life of the planetary reducer and the second motor. At the same time, since an energy absorption component is respectively installed on one side of the outer shell and the protective cover assembly, the energy absorption components installed on both sides of the outer shell can prevent the electric hoist from colliding with the building during the movement of the frame. The energy absorption effect of the energy absorption component can prevent the main body of the electric hoist from being damaged, thereby ensuring the normal operation of the electric hoist. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the main body of the utility model;

[0017] Figure 2 This is a schematic diagram of the external structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the top view of the structure of the utility model;

[0019] Figure 4 For this utility model Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0020] In the figure: 1. Housing; 2. Drive assembly; 201. First side panel; 202. First motor; 203. Driving wheel; 204. Driven wheel; 205. Second side panel; 3. Planetary reducer; 4. Second motor; 5. Protective cover assembly; 501. Cover body; 502. Electric exhaust fan; 503. Ventilation slot; 6. Hook; 7. Lifting rope; 8. Reel; 9. Energy absorption assembly; 901. Support plate; 902. Anti-collision plate; 903. Support slide bar; 904. Connecting rod; 905. Limiting slide bar; 906. Slider; 907. Spring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Example 1: A protective cover assembly 5 is fixed to one side of the shell 1 by bolts, a planetary reducer 3 is fixed to one end of the shell 1, a second motor 4 is installed on one side of the planetary reducer 3, a reel 8 is installed inside the shell 1 through a bearing, one end of the reel 8 is connected to the output end of the planetary reducer 3, and the output end of the second motor 4 is connected to the rotating shaft of the planetary reducer 3. The planetary reducer 3 and the second motor 4 are located inside the protective cover assembly 5, and an energy absorption assembly 9 is installed on one side of the shell 1 and the protective cover assembly 5 respectively, and two drive assemblies 2 are installed on the top of the shell 1.

[0023] Specifically, such as Figure 1 、 Figure 2 and Figure 3 As shown, since a drive component 2 is installed on the top of the shell 1, the shell 1 can be installed on the frame for movement through the drive component 2, and the rotation of the output end of the second motor 4 can drive the rotation of the internal output end of the planetary reducer 3. Since the internal output end of the planetary reducer 3 is fixedly connected to one end of the reel 8, the rotation of the output end of the second motor 4 can drive the reel 8 to rotate. Since the planetary reducer 3 and the second motor 4 are installed inside the protective cover component 5, the planetary reducer 3 and the second motor 4 can be protected by the protective cover component 5 to prevent the planetary reducer 3 and the second motor 4 from being hit or contaminated by foreign objects during use, thereby improving the service life of the planetary reducer 3 and the second motor 4. At the same time, since an energy absorption component 9 is respectively installed on one side of the shell 1 and the protective cover component 5, the energy absorption components 9 installed on both sides of the shell 1 can prevent the electric hoist from colliding with the building during the movement of the frame, and the energy absorption effect of the energy absorption component 9 can prevent the main body of the electric hoist from being damaged, thereby ensuring the normal operation of the electric hoist.

[0024] Example 2: The energy absorption component 9 includes a support plate 901, and the two support plates 901 are respectively welded to one side of the outer shell 1 and the protective cover component 5. Two support slide bars 903 are fixed to one side of the support plate 901, and the outer sides of the two support slide bars 903 are respectively slidably sleeved with two sliders 906, and the outer sides of the two support slide bars 903 are respectively sleeved with two springs 907. A limiting slide bar 905 is slidably installed inside the support plate 901, and one end of the limiting slide bar 905 is welded with an anti-collision plate 902. Four connecting rods 904 are hinged to one side of the anti-collision plate 902, and one end of the four connecting rods 904 is hinged to one end of the four sliders 906.

[0025] Specifically, such as Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown, when the electric hoist is moving on the traveling frame, when the anti-collision plate 902 collides with the building wall, the limiting slide bar 905 welded on one side of the anti-collision plate 902 will slide along the inside of the support plate 901, and at the same time, the hinged connecting rod 904 on one side of the anti-collision plate 902 will squeeze the slider 906 to make the slider 906 slide along the installation direction of the support slide bar 903, and at the same time compress the spring 907 sleeved on the outside of the support slide bar 903. The compressed spring 907 will absorb the pressure and generate a rebound force, thereby pushing the anti-collision plate 902 in the opposite direction, causing resistance to the movement of the electric hoist, and reminding the operator to stop controlling the electric hoist.

[0026] Example 3: The driving assembly 2 includes a first side plate 201 and a second side plate 205, and the first side plate 201 and the second side plate 205 are respectively welded to both sides of the top of the outer shell 1, and a first motor 202 is fixed to one side of the first side plate 201 by bolts, and a driving wheel 203 is rotatably installed on one side of the first side plate 201, and the driving wheel 203 is used in conjunction with the first motor 202, and a driven wheel 204 is rotatably installed on one side of the second side plate 205, the protective outer cover assembly 5 includes an outer cover body 501, and an electric exhaust fan 502 is fixed to one side of the outer cover body 501 by bolts, and a ventilation groove 503 is opened on one side of the outer cover body 501, a hanging rope 7 is wound on the outer side of the reel 8, and a hook 6 is sleeved on the outer side of the hanging rope 7.

[0027] Specifically, such as Figure 1 、 Figure 2 and Figure 3 As shown, when the housing 1 is installed on the supporting frame, the driving wheel 203 and the driven wheel 204 can be placed above the frame respectively, and then the driving wheel 203 is driven to rotate by the rotation of the output end of the first motor 202, so that the electric hoist can be controlled to move on the frame. Since an electric exhaust fan 502 is installed on one side of the outer cover body 501, the electric exhaust fan 502 can drive the outside air to enter the interior of the outer cover body 501 through the ventilation groove 503, thereby dissipating the heat energy generated by the planetary reducer 3 and the second motor 4 during operation, reducing the temperature of the working environment of the planetary reducer 3 and the second motor 4, and improving the service life of the planetary reducer 3 and the second motor 4.

[0028] It should be noted that the planetary electric hoist is a mature product or equipment in the existing technology, so this article will only describe its working principle and structure in detail.

[0029] Working principle: Since the top of the shell 1 is equipped with a driving component 2, the shell 1 can be installed on the frame for movement through the driving component 2. Since the shell 1 and the protective cover component 5 are respectively equipped with an energy absorbing component 9, the energy absorbing components 9 installed on both sides of the shell 1 can prevent the electric hoist from colliding with the building during the movement of the frame. The energy absorbing effect of the energy absorbing component 9 can prevent the main body of the electric hoist from being damaged, ensuring the normal operation of the electric hoist. When the electric hoist moves on the frame, when the anti-collision plate 902 hits the building wall, the electric hoist will After a collision occurs, the limiting slide bar 905 welded on one side of the anti-collision plate 902 will slide along the inside of the support plate 901. At the same time, the hinged connecting rod 904 on one side of the anti-collision plate 902 will squeeze the slider 906 to make the slider 906 slide along the installation direction of the support slide bar 903, and at the same time compress the spring 907 sleeved on the outside of the support slide bar 903. The compressed spring 907 will absorb the pressure and generate a rebound force, thereby pushing the anti-collision plate 902 in the opposite direction, causing resistance to the movement of the electric hoist, and reminding the operator to stop controlling the electric hoist.

[0030] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A planetary electric hoist, comprising a housing (1), characterized in that: A protective cover assembly (5) is fixed to one side of the housing (1) by bolts, a planetary reducer (3) is fixed to one end of the housing (1), a second motor (4) is installed on one side of the planetary reducer (3), a reel (8) is installed inside the housing (1) through a bearing, one end of the reel (8) is connected to the output end of the planetary reducer (3), the output end of the second motor (4) is connected to the rotating shaft of the planetary reducer (3), the planetary reducer (3) and the second motor (4) are located inside the protective cover assembly (5), an energy absorption assembly (9) is installed on one side of the housing (1) and the protective cover assembly (5), and two drive assemblies (2) are installed on the top of the housing (1).

2. A planetary electric hoist according to claim 1, characterized in that: The energy absorbing assembly (9) comprises a support plate (901), and the two support plates (901) are respectively welded to one side of the outer shell (1) and the protective cover assembly (5).

3. A planetary electric hoist according to claim 2, characterized in that: Two supporting slide bars (903) are fixed on one side of the supporting plate (901), and two sliders (906) are slidably sleeved on the outer sides of the two supporting slide bars (903), and two springs (907) are sleeved on the outer sides of the two supporting slide bars (903).

4. A planetary electric hoist according to claim 3, characterized in that: A limiting slide bar (905) is slidably mounted inside the support plate (901), and an anti-collision plate (902) is welded to one end of the limiting slide bar (905).

5. A planetary electric hoist according to claim 4, characterized in that: Four connecting rods (904) are hinged on one side of the anti-collision plate (902), and one end of the four connecting rods (904) is hinged to one end of four sliders (906) respectively.

6. The planetary electric hoist according to claim 1, characterized in that: The driving assembly (2) comprises a first side plate (201) and a second side plate (205), and the first side plate (201) and the second side plate (205) are respectively welded to two sides of the top of the housing (1).

7. A planetary electric hoist according to claim 6, characterized in that: A first motor (202) is fixed to one side of the first side plate (201) via bolts, and a driving wheel (203) is rotatably mounted on one side of the first side plate (201), the driving wheel (203) being used in conjunction with the first motor (202), and a driven wheel (204) is rotatably mounted on one side of the second side plate (205).

8. The planetary electric hoist according to claim 1, characterized in that: The protective cover assembly (5) includes a cover body (501), and an electric exhaust fan (502) is fixed to one side of the cover body (501) by bolts, and a ventilation groove (503) is opened on one side of the cover body (501), a hanging rope (7) is wound around the outer side of the reel (8), and a hook (6) is sleeved on the outer side of the hanging rope (7).

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