Manual release device for hoisting double-motor set

Abstract

The utility model relates to the technical field of hoisting equipment, and discloses a manual release device for hoisting a double-motor set, which comprises a main motor, a low-speed motor is arranged on one side of the main motor, and a pull sleeve component for enabling the main motor to start a brake to slowly put down a heavy object is arranged on one side of the main motor; by arranging the pull sleeve assembly, the supporting frame assembly and the driving assembly, a pull sleeve is installed on a main shaft of a main motor through the supporting frame assembly, when a brake of the main motor needs to be manually started, only the driving assembly needs to be pulled, the pull sleeve assembly can pull a connecting sleeve, and therefore a locking nut and a fan brake wheel are driven to move together; when the fan brake wheel is separated from the fixed body, the brake of the main motor is started, so that the effect of slowly falling an object is achieved, the manual release device can be mounted on the original motor, and the motor does not need to be customized by matching with the manual release device.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting equipment, in particular to a manual release device for lifting a dual-motor group. Background Art

[0002] Electric hoist is a special lifting equipment installed on overhead cranes and gantry cranes. It has the characteristics of small size, light weight, simple operation and easy use. It is used in industrial and mining enterprises, warehouses, docks and other places. When the motor is abnormally powered off or due to malfunction, the electric hoist lifts the heavy object in the air, which is dangerous and needs to be released. Therefore, the brake needs to be opened to release the heavy object without powering the motor. Since the manual release device is a very important part, it is also necessary to optimize the manual release device.

[0003] For example, a new type of hydraulic hoist is disclosed in the Chinese utility model patent with the announcement number CN219885539U. Although the above-mentioned prior art can realize the release brake and lifting and lowering functions at the same time, in an emergency, the brake can be released manually to allow the drive system to operate simply to meet temporary needs. However, the manual release device is installed on the motor, which has special requirements for the original motor, and the motor shaft of the original motor needs to be customized, and its rear end needs to be specially extended by a threaded section for manual release connection. The safety of the customized motor cannot be guaranteed due to the extended threaded section, and the cost of the customized motor is relatively expensive. Therefore, it is necessary to design a manual release device for lifting that is suitable for the original motor and does not require motor customization. Utility Model Content

[0004] In order to solve the technical problem that the existing manual release device is installed on the motor and the motor needs to be specially customized, the utility model provides a manual release device for lifting a dual-motor group.

[0005] The utility model is implemented by the following technical solutions: a manual release device for lifting a dual-motor group, comprising a main motor, a slow-speed motor being provided on one side of the main motor, a pull sleeve assembly being provided on one side of the main motor for starting the brake to slowly lower the heavy object, a support frame assembly being provided on the pull sleeve assembly for fixing the pull sleeve assembly on the slow-speed motor, and a drive assembly being provided on one side of the pull sleeve assembly for manually driving the pull sleeve assembly to start and brake the main motor.

[0006] Through the above technical solution, the support frame assembly is fixed to the pull sleeve assembly on the main motor. When the brake needs to be opened manually, it is only necessary to pull the drive assembly.

[0007] As a further improvement of the above-mentioned scheme, the interior of the main motor includes a main shaft, a fan brake wheel sleeved on the main shaft, a fixed body sleeved on the main shaft and a locking nut sleeved on the main shaft, the fan brake wheel is located between the fixed body and the locking nut, the fixed body is used in conjunction with the locking nut, the slow-speed motor includes a slow-speed drive box body and a slow-speed drive box cover, and the main motor and the slow-speed motor are both conical motors.

[0008] Through the above technical solution, the separation of the fan brake wheel from the fixed body will cause the main motor brake to open.

[0009] As a further improvement of the above-mentioned scheme, the pulling sleeve assembly includes a connecting sleeve mounted on one end of the main shaft, a pulling sleeve arranged on one side of the connecting sleeve and threadedly engaged with the connecting sleeve, a connecting rod movably installed on one side of the pulling sleeve, and a fixed sleeve slidably mounted on the connecting rod, and a movable groove for the connecting rod to move is provided between the connecting rod and the pulling sleeve.

[0010] Through the above technical solution, the connecting rod pulls the pulling sleeve and the connecting sleeve to separate the fan brake wheel from the fixed body.

[0011] As a further improvement of the above solution, the support frame assembly includes support frames fixedly installed on both sides of the fixing sleeve and two support rods installed at the bending parts of the support frames, and the two support frames are both arranged in an "L" shape.

[0012] Through the above technical solution, the support frame is installed on the main motor, which makes it convenient to manually open the brake of the main motor.

[0013] As a further improvement of the above scheme, the driving assembly includes a driving base fixedly installed on one side of the fixed sleeve and arranged in an "L" shape, a driving sleeve fixed on the connecting rod, and a handle with one end rotatably engaged with the driving base, and the handle is fixedly engaged with the driving sleeve.

[0014] Through the above technical solution, pulling the handle will cause the connecting rod to pull the pulling sleeve and the connecting sleeve, so that the fan brake wheel is separated from the fixed body.

[0015] As a further improvement of the above solution, a spline is provided on one side of the connecting sleeve, and the connecting sleeve, the locking nut and the fan brake wheel are all connected via the spline.

[0016] With the above technical solution, when the connecting sleeve is pulled, the locking nut and the fan brake wheel will also be pulled.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The utility model provides a pulling sleeve assembly, a supporting frame assembly and a driving assembly, and uses the supporting frame assembly to install the pulling sleeve on the main shaft of the main motor. When the brake of the main motor needs to be manually opened, it is only necessary to pull the driving assembly, which will cause the pulling sleeve assembly to pull the connecting sleeve, thereby driving the locking nut and the fan brake wheel to move together, and the fan brake wheel is separated from the fixed body, and the brake of the main motor will be activated, thereby achieving the effect of slowly letting the object fall. This arrangement allows the manual release device to be installed on the original motor, and there is no need to customize the motor with the manual release device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front cross-sectional structural diagram of the present utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the pull sleeve assembly of the utility model;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the main motor of the utility model.

[0022] Description of main symbols:

[0023] 1. Main motor; 101. Main shaft; 102. Fan brake wheel; 103. Fixed body; 104. Locking nut; 2. Slow motor; 201. Slow drive box; 202. Drive box cover; 301. Connecting sleeve; 302. Pull sleeve; 303. Connecting rod; 304. Fixed sleeve; 401. Support frame; 402. Support rod; 501. Drive base; 502. Drive sleeve; 503. Handle; 6. Spline. DETAILED DESCRIPTION

[0024] Below, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0025] Please combine Figure 1-Figure 3 The present embodiment provides a manual release device for lifting a dual-motor group, comprising a main motor 1, a slow-speed motor 2 provided on one side of the main motor 1, a pull sleeve assembly provided on one side of the main motor 1 for starting the brake of the main motor 1 to slowly lower the heavy object, a support frame assembly provided on the pull sleeve assembly for fixing the pull sleeve assembly on the slow-speed motor 2, and a drive assembly provided on one side of the pull sleeve assembly for manually driving the pull sleeve assembly to start and brake the main motor 1.

[0026] Combine Figure 1 and Figure 3The interior of the main motor 1 includes a main shaft 101, a fan brake wheel 102 sleeved on the main shaft 101, a fixed body 103 sleeved on the main shaft 101 and a locking nut 104 sleeved on the main shaft 101. The fan brake wheel 102 is located between the fixed body 103 and the locking nut 104. The fixed body 103 and the locking nut 104 are used in conjunction with the slow-speed motor 2. The slow-speed motor 2 includes a slow-speed drive box body 201 and a slow-speed drive box cover 202. Both the main motor 1 and the slow motor 2 are conical motors. When the fan brake wheel 102 is separated from the fixed body 103, the brake of the main motor 1 will be opened.

[0027] Combine Figure 1 and Figure 2 The pulling sleeve assembly includes a connecting sleeve 301 sleeved on one end of the main shaft 101, a pulling sleeve 302 arranged on one side of the connecting sleeve 301 and threadedly matched with the connecting sleeve 301, a connecting rod 303 movably installed on one side of the pulling sleeve 302 and a fixed sleeve 304 slidably sleeved on the connecting rod 303, and a movable groove for the connecting rod 303 to move is provided between the connecting rod 303 and the pulling sleeve 302. The connecting rod 303 pulls the pulling sleeve 302 and the connecting sleeve 301 to separate the fan brake wheel 102 from the fixed body 103.

[0028] Combine Figure 1 and Figure 2 The support frame assembly includes a support frame 401 fixedly installed on both sides of the fixing sleeve 304 and two support rods 402 installed at the bending part of the support frame 401. The two support frames 401 are both set in an "L" shape. The support frame 401 is installed on the main motor 1 to facilitate manual opening of the brake of the main motor 1.

[0029] Combine Figure 1 and Figure 2 The driving assembly includes a driving base 501 fixedly installed on one side of the fixing sleeve 304 and arranged in an "L" shape, a driving sleeve 502 fixedly sleeved on the connecting rod 303, and a handle 503 rotatably matched with the driving base 501 at one end. The handle 503 is fixedly matched with the driving sleeve 502. Pulling the handle 503 will cause the connecting rod 303 to pull the pulling sleeve 302 and the connecting sleeve 301, so that the fan brake wheel 102 is separated from the fixed body 103.

[0030] Combine Figure 1 and Figure 2 A spline 6 is provided on one side of the connecting sleeve 301. The connecting sleeve 301, the locking nut 104 and the fan brake wheel 102 are all connected through the spline 6. When the connecting sleeve 301 is pulled, the locking nut 104 and the fan brake wheel 102 will be pulled together.

[0031] The implementation principle of a manual release device for lifting a dual-motor group in the embodiment of the present application is as follows: the connecting sleeve 301 is installed at one end of the main shaft 101, and the connecting sleeve 301, the locking nut 104 and the fan brake wheel 102 are fixed using the spline 6, and then the support frame 401 is installed on the main motor 1 for fixation. The surface of one end of the connecting sleeve 301 is provided with a thread. After being threadedly fixed with the pull sleeve 302, when the main motor 1 is abnormally powered off or due to a malfunction, the electric hoist lifts the heavy object in the air, which is a dangerous situation, and the lifted heavy object needs to be released. When the fan is in the unlocking state, pull the handle 503, which will cooperate with the driving base 501 and the driving sleeve 502 to pull the connecting rod 303, and the connecting rod 303 will pull the pulling sleeve 302, and the pulling sleeve 302 will pull the connecting sleeve 301. Finally, the connecting sleeve 301 cooperates with the spline 6 to separate the fan brake wheel 102 from the fixed body 103. Once the fan brake wheel 102 is separated from the fixed body 103, the brake of the main motor 1 will be turned on, and the heavy object will be slowly lowered. This setting allows the manual release device to be installed on the original motor, and there is no need to customize the motor with the manual release device.

[0032] The above embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A manual release device for lifting a dual-motor group, comprising a main motor (1), a slow motor (2) being provided on one side of the main motor (1), characterized in that: A pull sleeve assembly is provided on one side of the main motor (1) for starting the brake of the main motor (1) to slowly lower the heavy object, a support frame assembly is provided on the pull sleeve assembly for fixing the pull sleeve assembly on the slow motor (2), and a drive assembly is provided on one side of the pull sleeve assembly for manually driving the pull sleeve assembly to start the brake of the main motor (1).

2. A manual release device for lifting a dual-motor unit as claimed in claim 1, characterized in that: The main motor (1) comprises a main shaft (101), a fan brake wheel (102) sleeved on the main shaft (101), a fixed body (103) sleeved on the main shaft (101), and a locking nut (104) sleeved on the main shaft (101); the fan brake wheel (102) is located between the fixed body (103) and the locking nut (104); the fixed body (103) and the locking nut (104) are used in conjunction with each other; the slow motor (2) comprises a slow drive housing (201) and a slow drive housing cover (202); and both the main motor (1) and the slow motor (2) are conical motors.

3. A manual release device for lifting a dual-motor unit as claimed in claim 2, characterized in that: The pull sleeve assembly comprises a connecting sleeve (301) sleeved on one end of a main shaft (101), a pull sleeve (302) arranged on one side of the connecting sleeve (301) and threadedly matched with the connecting sleeve (301), a connecting rod (303) movably mounted on one side of the pull sleeve (302), and a fixing sleeve (304) slidably sleeved on the connecting rod (303), and a movable groove for the connecting rod (303) to move is provided between the connecting rod (303) and the pull sleeve (302).

4. A manual release device for lifting a dual-motor unit as claimed in claim 3, characterized in that: The support frame assembly comprises support frames (401) fixedly mounted on both sides of the fixing sleeve (304) and two support rods (402) mounted at the bends of the support frames (401), and the two support frames (401) are both arranged in an "L" shape.

5. A manual release device for lifting a dual-motor unit as claimed in claim 3, characterized in that: The driving assembly comprises a driving base (501) fixedly mounted on one side of a fixing sleeve (304) and arranged in an "L" shape, a driving sleeve (502) fixedly sleeved on a connecting rod (303), and a handle (503) one end of which is rotatably matched with the driving base (501), and the handle (503) is fixedly matched with the driving sleeve (502).

6. A manual release device for lifting a dual-motor unit as claimed in claim 3, characterized in that: A spline (6) is provided on one side of the connecting sleeve (301), and the connecting sleeve (301), the locking nut (104) and the fan brake wheel (102) are all connected via the spline (6).

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