Lifting suspension device for pneumatic hoist

Abstract

The invention discloses a lifting suspension device for a pneumatic hoist, which comprises a front chain wheel plate, a rear chain wheel plate and a chain driving shaft, the front chain wheel plate and the rear chain wheel plate are oppositely arranged, the chain driving shaft is arranged at the center of the front chain wheel plate and the center of the rear chain wheel plate, and one end of the chain driving shaft is provided with a power input shaft which is in transmission connection with a pneumatic hoist motor and a speed reducer. A chain clamping groove connected with a chain in a clamped mode is formed in the outer surface of the chain driving shaft in the circumferential direction, and a first chain conveying-out channel and a second chain conveying-out channel are arranged between the front chain wheel plate and the rear chain wheel plate. According to the device, self-lifting of the pneumatic hoist on the chain is achieved through conveying-in and conveying-out of the chain, after the pneumatic hoist moves to the target position, positioning can be completed only through connection of the hanging connecting piece and the hook, and after positioning, the motor continues to be started to drive the chain to achieve object lifting.

Description

Technical Field

[0001] This invention relates to the field of pneumatic hoist technology, specifically to a lifting and suspension device for pneumatic hoists. Background Technology

[0002] Pneumatic hoists, as commonly used lifting equipment in the industrial field, are widely used in machinery manufacturing, warehousing and logistics, mining and other scenarios. Their lifting and suspension devices are the core components for realizing equipment displacement and object lifting. Currently, when operating pneumatic hoists, manual labor or forklifts are required to lift the pneumatic hoist to the required height, which increases the cost of use. Moreover, in underground environments, pneumatic hoists can only be lifted manually. If the pneumatic hoist falls during the lifting process, it can easily injure workers and pose a danger, failing to meet the usage requirements. Summary of the Invention

[0003] To solve the above-mentioned technical problems, the technical solution provided by the present invention is as follows: a lifting suspension device for a pneumatic hoist, comprising a front sprocket plate and a rear sprocket plate arranged opposite to each other, and a chain drive shaft disposed at the center of the front sprocket plate and the rear sprocket plate. One end of the chain drive shaft is provided with a power input shaft that is connected to the pneumatic hoist motor and a reducer. The outer surface of the chain drive shaft is circumferentially provided with a chain groove for engaging with the chain. A first chain channel and a second chain channel are provided between the front sprocket plate and the rear sprocket plate, so that the chain enters between the front sprocket plate and the rear sprocket plate through the first chain channel, passes through the chain groove on the chain drive shaft, and extends out of the front sprocket plate and the rear sprocket plate through the second chain channel, thereby causing the pneumatic hoist as a whole to move on the chain when the chain drive shaft rotates.

[0004] Preferably, the chain is a flexible transmission component composed of multiple chain links connected end to end, and the shape of the chain slot is adapted to each chain link.

[0005] Preferably, the second chain channel is a fan-shaped channel, so that the chain can extend out of the pneumatic hoist from the top of the fan-shaped channel, i.e., the top of the pneumatic hoist.

[0006] Preferably, the front sprocket plate and the rear sprocket plate are further provided with chain start end connecting grooves in the area between the first chain channel and the second chain channel.

[0007] Preferably, the front sprocket plate and the rear sprocket plate are further provided with suspension connectors.

[0008] The advantages of this invention compared to the prior art are:

[0009] This device forms a stable transmission frame through the relatively positioned front and rear sprocket plates, clearly defining the first and second chain channels to provide a fixed path for chain entry and exit, effectively preventing chain deviation and jamming. The chain groove on the outer surface of the chain drive shaft precisely matches the shape of the chain links, ensuring no slippage during transmission. Additionally, a connecting groove at the chain start end is added to firmly fix one end of the chain, further preventing chain loosening during transmission. The overall structure significantly improves the stability and accuracy of chain transmission. This device achieves self-lifting of the pneumatic hoist on the chain through chain input and output. After the pneumatic hoist moves to the target position, it only needs to be connected to the hook via the suspension connector to complete positioning. After positioning, the motor can be restarted to drive the chain to lift the object, achieving integrated "movement-positioning-lifting" operation, greatly simplifying the process, improving efficiency, and avoiding the risk of the hoist falling. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of a lifting suspension device for a pneumatic hoist according to the present invention.

[0011] Figure 2 This is a schematic diagram of the lower part of a lifting suspension device for a pneumatic hoist according to the present invention.

[0012] Figure 3 This is a schematic diagram of the internal structure of a lifting suspension device for a pneumatic hoist according to the present invention.

[0013] Figure 4 This is a schematic diagram of the structure of a chain for a lifting suspension device used in a pneumatic hoist according to the present invention.

[0014] Figure 5 This is a schematic diagram of the lifting suspension device for a pneumatic hoist in the lifting state according to the present invention.

[0015] Figure 6 This is a schematic diagram of the lifting suspension device for a pneumatic hoist in the state of object lifting. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0017] In the description of the embodiments of the present invention, it should be noted that if terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, terms such as "first," "second," and "third" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0018] Furthermore, the use of terms such as "horizontal," "vertical," and "sag" does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0019] In the description of the embodiments of the present invention, "multiple" means at least two.

[0020] In the description of the embodiments of the present invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0021] Example:

[0022] Combined with appendix Figure 1-6This embodiment discloses a lifting suspension device for a pneumatic hoist, including a front sprocket plate 1 and a rear sprocket plate 2 arranged opposite to each other, and a chain drive shaft 3 disposed at the center of the front sprocket plate 1 and the rear sprocket plate 2. One end of the chain drive shaft 3 is provided with a power input shaft 6 that is transmitted and connected to the pneumatic hoist motor 4 and the reducer 5. The outer surface of the chain drive shaft 3 is provided with a chain groove 9 for engaging with the chain. A first chain channel 7 and a second chain channel 7 are provided between the front sprocket plate 1 and the rear sprocket plate 2. The first chain channel 7 allows the chain 10 to enter between the front sprocket plate 1 and the rear sprocket plate 2, and after passing through the chain groove 9 on the chain drive shaft 3, it extends out of the front sprocket plate 1 and the rear sprocket plate 2 through the second chain channel 8. This allows the pneumatic hoist to move along the chain when the chain drive shaft 3 rotates. The chain 10 is a flexible chain commonly used in the prior art, which is a flexible transmission component composed of multiple chain links 1001 connected end to end. The shape of the chain groove 9 is adapted to each chain link 1001.

[0023] The front sprocket plate 1 and the rear sprocket plate 2 are provided with chain starting end connecting grooves 11 in the area between the first chain channel 7 and the second chain channel 8; the second chain channel 8 is a fan-shaped channel, so that the chain can extend out of the pneumatic hoist from the top of the fan-shaped channel, that is, the top of the pneumatic hoist; the front sprocket plate 1 and the rear sprocket plate 2 are also provided with suspension connectors 12.

[0024] 1. Pneumatic hoist lifting control

[0025] First, fix one end of the chain to the connecting slot at the chain start end. The other end passes around the chain drive shaft, through the front and rear sprocket plates, and is then fixed to the required mounting bracket on the pneumatic hoist. At this point, start the pneumatic hoist's motor and reducer, causing the chain drive shaft to rotate. The chain drive shaft, relying on the engaging engagement of the chain with the chain's groove, allows the pneumatic hoist to move along the chain. Figure 5 As shown, the pneumatic hoist moves in different directions by rotating the motor forward and backward; when the pneumatic hoist rises to the target position, the suspension connector is connected to the hook at the target position to achieve the positioning of the pneumatic hoist.

[0026] 2. Object is lifted

[0027] Once the pneumatic hoist is secured to the target location, the hoist's motor and reducer are started again. The chain drive shaft rotates, causing the chain to continue moving within the hoist. This shortens or lengthens the chain length located between the connecting slot at the beginning of the chain and the first chain channel, thereby lifting or lowering the object connected to this segment of the chain. Figure 6 As shown.

[0028] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0029] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A lifting suspension device for a pneumatic hoist, characterized in that, The device includes a front sprocket plate and a rear sprocket plate arranged opposite each other, and a chain drive shaft located at the center of the front and rear sprocket plates. One end of the chain drive shaft is provided with a power input shaft that is connected to the pneumatic hoist motor and reducer. The outer surface of the chain drive shaft is circumferentially provided with a chain groove for engaging the chain. A first chain channel and a second chain channel are provided between the front and rear sprocket plates, so that the chain enters between the front and rear sprocket plates through the first chain channel, passes through the chain groove on the chain drive shaft, and extends out of the front and rear sprocket plates through the second chain channel. Thus, when the chain drive shaft rotates, the entire pneumatic hoist moves on the chain.

2. The lifting suspension device for a pneumatic hoist according to claim 1, characterized in that, The chain is a flexible transmission component composed of multiple chain links connected end to end, and the shape of the chain slot is adapted to each chain link.

3. The lifting and suspension device for a pneumatic hoist according to claim 1, characterized in that, The second chain channel is a fan-shaped channel, which allows the chain to extend from the top of the fan-shaped channel, i.e., the top of the pneumatic hoist.

4. The lifting suspension device for a pneumatic hoist according to claim 1, characterized in that, The front sprocket plate and the rear sprocket plate are also provided with chain start end connecting grooves in the area between the first chain channel and the second chain channel.

5. A lifting suspension device for a pneumatic hoist according to claim 1, characterized in that, The front sprocket plate and the rear sprocket plate are also equipped with suspension connectors.

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