Elevator with double-chain lifting system

Abstract

The utility model provides a hoister with a double-chain hoisting system, which comprises a hoister frame, a driving mechanism of the hoister frame, a double-chain hoisting mechanism, a driving motor and an air cylinder, and the double-chain hoisting mechanism is mounted on the hoister frame and the driving mechanism of the hoister frame. The output end of the driving motor fixedly installed on the lifting rack and the driving mechanism of the lifting rack is fixed to the double-chain lifting mechanism. The air cylinder is fixedly installed on the lifting rack and the driving mechanism of the lifting rack. The stable machine frame composed of the four supporting rods, the reinforcing cross beam and the reinforcing base is adopted, the double-chain lifting mechanism is combined, bearing and stability are greatly enhanced, loads are dispersed through the double chains, slipping and breakage are prevented, the service life is prolonged, worm and worm gear transmission is accurate and efficient, the synchronous reverse driving shafts are designed in the double rotating directions, stable operation of the chains is guaranteed, and the transmission ratio is accurate; low noise and energy conservation are realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of hoists, and particularly relates to a hoist with a double-chain lifting system. Background Art

[0002] In the fields of industrial automation and material handling, the lifting mechanism is an indispensable key device. Traditional lifting mechanisms often have problems such as complex structures, low transmission efficiency, high maintenance costs, and poor stability. Especially for application scenarios that require precise control, large load capacity, or high-frequency operation, these problems are particularly prominent.

[0003] Most of the existing lifting mechanisms adopt single-chain or belt drive. These methods are prone to slipping, breaking, or excessive wear when bearing large loads, affecting the reliability and service life of the equipment. At the same time, traditional drive methods often have disadvantages such as inaccurate transmission ratios, high noise, and high energy consumption, and are difficult to meet the requirements of modern industry for high efficiency, energy conservation, and environmental protection. In addition, traditional lifting mechanisms often lack flexibility in design and are difficult to meet diverse application requirements.

[0004] Therefore, it is very necessary to invent a hoist with a double-chain lifting system. Content of the Utility Model

[0005] In order to solve the above technical problems, the utility model provides a hoist with a double-chain lifting system, which includes a lifting frame and its driving mechanism, a double-chain lifting mechanism, a driving motor, and a cylinder. The double-chain lifting mechanism is installed on the lifting frame and its driving mechanism, and the output end of the driving motor fixedly installed on the lifting frame and its driving mechanism is fixed to the double-chain lifting mechanism; the cylinder is fixedly installed on the lifting frame and its driving mechanism;

[0006] The lifting frame and its driving mechanism include support rods, reinforcing crossbeams, reinforcing seats, auxiliary supports, worms, and worm wheels. There are four support rods in total. The reinforcing crossbeams and reinforcing seats are fixedly installed on the four support rods. The cylinder and the auxiliary support are respectively fixedly installed on the two reinforcing seats. The driving motor is fixedly installed on the auxiliary support, and the worm is rotatably installed. Any end of the worm is fixed to the output end of the driving motor; the worm is meshed with the worm wheel, and the worm wheel is fixed to any end of the driving shaft of the double-chain lifting mechanism. The driving shaft is rotatably installed on the support rod;

[0007] The double-chain lifting mechanism includes a drive shaft, chain gears, lifting chains, lifting plates, roller shafts, and a bearing plate. There are two drive shafts in total, and the two drive shafts are respectively rotatably installed on two of the support rods. Two chain gears are fixedly installed on the drive shaft and are engaged with the lifting chains. The lifting plates are fixedly installed on the two lifting chains, the bearing plate is fixedly installed on the lifting plates, and the roller shafts are rotatably installed.

[0008] Preferably, there are two reinforcing seats in total. The two reinforcing seats are respectively a top seat and a bottom seat. The air cylinder is fixedly installed on the top seat, the output end of the air cylinder is fixed to the push plate, and the push plate fixed to the output end of the air cylinder is located on one side between the two double-chain lifting mechanisms.

[0009] Preferably, the support rods, the reinforcing cross beam, and the reinforcing seats jointly construct the overall support frame structure. The auxiliary support, the worm, and the worm gear are the drive mechanism. The worm has two helices with opposite helix directions, that is, one left helix and one right helix. The two helices with different helix directions are respectively engaged with the two worm gears.

[0010] Preferably, the drive motor drives the drive shafts of the two double-chain lifting mechanisms to perform synchronous reverse rotational movements through the drive mechanism. The drive shafts are located above or below the reinforcing cross beam, and the lifting chains are arranged on the outside of the reinforcing cross beam.

[0011] Preferably, the lifting plates fixedly installed on the lifting chains are of rectangular structure, and the roller shafts rotatably installed on the lifting plates are located between the two bearing plates.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model adopts a support frame structure jointly constructed by four support rods, a reinforcing cross beam, and reinforcing seats, as well as a double-chain lifting mechanism, which significantly improves the overall load-bearing capacity and stability. The double-chain design can disperse the load, reduce the stress on a single chain, effectively avoid slipping and breaking phenomena, and extend the service life of the equipment. Through the meshing transmission of the worm and the worm gear, the power of the drive motor is efficiently transmitted to the double-chain lifting mechanism. The design of the two helices with different helix directions of the worm can drive the two drive shafts to perform synchronous reverse rotational movements at the same time, ensuring the smooth operation of the lifting chains. This transmission method not only has an accurate transmission ratio, but also has low noise and low energy consumption. Description of the Drawings

[0014] Figure 1 is the overall structural schematic diagram of the utility model.

[0015] Figure 2 is the structural schematic diagram of the lifting frame and its drive mechanism of the utility model.

[0016] Figure 3 It is a schematic structural diagram of the double-chain lifting mechanism of the present utility model.

[0017] In the figure:

[0018] Lifting frame and its drive mechanism 1, support rod 11, reinforcement cross beam 12, reinforcement seat 13, auxiliary support 14, worm 15, worm gear 16, double-chain lifting mechanism 2, drive shaft 21, chain gear 22, lifting chain 23, lifting plate 24, roller 25, bearing plate 26, drive motor 3, air cylinder 4. Specific embodiments

[0019] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] In the description of the embodiments, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In the description of the utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0021] As shown in the attached Figure 1 to the attached Figure 3 figure:

[0022] A hoist with a double-chain lifting system provided by the utility model includes a lifting frame and its driving mechanism 1, a double-chain lifting mechanism 2, a driving motor 3, and a cylinder 4. The double-chain lifting mechanism 2 is installed on the lifting frame and its driving mechanism 1, and the output end of the driving motor 3 fixedly installed on the lifting frame and its driving mechanism 1 is fixed to the double-chain lifting mechanism 2; the cylinder 4 is fixedly installed on the lifting frame and its driving mechanism 1.

[0023] The lifting frame and its driving mechanism 1 include a support rod 11, a reinforcing cross beam 12, a reinforcing seat 13, a secondary support 14, a worm 15, and a worm gear 16. There are four support rods 11 in total. The reinforcing cross beam 12 and the reinforcing seat 13 are fixedly installed on the four support rods 11. The cylinder 4 and the secondary support 14 are respectively fixedly installed on the two reinforcing seats 13. The driving motor 3 is fixedly installed on the secondary support 14, and the worm 15 is rotatably installed. Any end of the worm 15 is fixed to the output end of the driving motor 3; the worm 15 is meshed with the worm gear 16, and the worm gear 16 is fixed to any end of the driving shaft 21 of the double-chain lifting mechanism 2. The driving shaft 21 is rotatably installed on the support rod 11. The overall load-bearing capacity and stability are significantly improved. The double-chain design can disperse the load, reduce the stress on a single chain, effectively avoid slipping and breaking phenomena, and extend the service life of the equipment.

[0024] The double-chain lifting mechanism 2 includes a driving shaft 21, a chain gear 22, a lifting chain 23, a lifting plate 24, a roller 25, and a bearing plate 26. There are two driving shafts 21 in total. The two driving shafts 21 are respectively rotatably installed on two of the support rods 11; two chain gears 22 are fixedly installed on the driving shaft 21 and meshed with the lifting chain 23. The lifting plate 24 is fixedly installed on the two lifting chains 23. The bearing plate 26 is fixedly installed on the lifting plate 24, and the roller 25 is rotatably installed. Example 1:

[0025] Specifically, there are two reinforcing seats 13, named the top seat and the bottom seat respectively. These two reinforcing seats play a crucial role in the lifting frame. They not only enhance the overall structural stability but also provide an installation basis for other key components. The cylinder 4 is precisely fixedly installed on the top seat. Such a layout ensures that the cylinder can remain stable during the pushing process and will not shift due to vibration or external forces. The output end of the cylinder 4 is closely connected to a push plate, which is cleverly located on one side between the two double-chain lifting mechanisms 2, providing the necessary thrust support for the subsequent lifting and lowering actions.

[0026] Specifically, the support frame is the foundation of the entire lifting mechanism, which is jointly constructed by the support rods 11, the reinforcement cross beams 12, and the reinforcement bases 13. As the main load-bearing components, the support rods 11 ensure the stability of the entire frame through reasonable layout and connection. The reinforcement cross beams 12 span between the support rods, further enhancing the lateral stability of the frame. The reinforcement bases 13, as the key nodes connecting the support rods 11 and the reinforcement cross beams 12, also provide installation positions for other components such as the cylinders 4 and the drive mechanism. These three cooperate with each other to jointly construct a strong and stable support frame structure.

[0027] Specifically, the drive mechanism consists of the secondary support 14, the worm 15, and the worm gear 16. The secondary support 14 is firmly installed on the reinforcement base 13, providing a stable installation platform for the worm 15 and the worm gear 16. As the core component for power transmission, the worm 15 has a unique design - two helices with opposite helix directions (one left helix and one right helix) - enabling it to drive two worm gears 16 to rotate in opposite directions simultaneously. This design not only simplifies the transmission structure but also improves the transmission efficiency. The worm gear 16 is closely connected to the drive shaft 21 of the double-chain lifting mechanism, converting the power of the worm 15 into the rotational motion of the drive shaft 21.

[0028] Specifically, driven by the drive motor 3, the drive mechanism drives the drive shafts 21 of the two double-chain lifting mechanisms to perform synchronous opposite rotational motions through the meshing of the worm 15 and the worm gear 16. This rotational motion causes the chain gears 22 fixed on the drive shafts 21 to rotate accordingly, thereby driving the lifting chains 23 to move up and down. Rectangular lifting plates 24 are fixedly installed on the lifting chains 23. These lifting plates 24 not only bear the weight of the object to be lifted but also achieve rolling contact with the bearing plates 26 through the rollers 25 installed on them. The design of the rollers 25 not only reduces the frictional resistance during the lifting process but also enables the lifting mechanism to smoothly pass through obstacles such as the rollers of the roller conveyor. In addition, the distances between the rollers 25 and between the rollers 25 and the bearing plates 26 are also carefully calculated to ensure the stability and safety of the entire lifting process. Embodiment Two:

[0029] Startup stage:

[0030] Turn on the power supply and start the drive motor 3. The drive motor 3 starts to rotate, and its output end is connected to one end of the worm 15 through components such as a coupling, driving the worm 15 to rotate.

[0031] Transmission stage:

[0032] The two helices with opposite helix directions of the worm 15 are respectively engaged with two worm wheels 16, causing the two worm wheels 16 to rotate in opposite directions. The rotational movement of the worm wheel 16 is connected to the drive shaft 21 of the double-chain lifting mechanism 2 through its shaft hole, thereby driving the drive shaft 21 to rotate synchronously in the opposite direction.

[0033] Lifting stage:

[0034] The chain gear 22 on the drive shaft 21 rotates with the shaft, engages with the lifting chain 23, and drives the lifting chain 23 to move up and down. The lifting plate 24 fixedly installed on the lifting chain 23 moves up and down with the chain, and the bearing plate 26 is used to place the items to be lifted. The roller 25 plays a role in reducing the frictional resistance during the lifting process and ensures that the lifting mechanism can smoothly pass through obstacles such as roller conveyors.

[0035] Stabilization and adjustment stage:

[0036] The cylinder 4 pushes the item through the push plate connected to its output end when needed to ensure that the item moves horizontally and reaches the designated position after lateral movement. The reinforced frame structure (including the support rod 11, the reinforced cross beam 12, the reinforced seat 13, etc.) remains stable throughout the process and provides a solid support for the lifting mechanism.

[0037] Stopping stage:

[0038] When the predetermined height is reached or the lifting task is completed, the drive motor 3 is turned off and the lifting mechanism stops moving. The items on the bearing plate 26 can be unloaded or transferred through the cylinder 4 or other auxiliary devices.

[0039] Using the technical solution described in the present utility model, or those skilled in the art designing similar technical solutions inspired by the technical solution of the present utility model and achieving the above technical effects shall fall within the protection scope of the present utility model.

Claims

1. An elevator with a double-chain lifting system, characterized in that, It includes a lifting frame and its driving mechanism (1), a double-chain lifting mechanism (2), a driving motor (3) and a cylinder (4). The double-chain lifting mechanism (2) is installed on the lifting frame and its driving mechanism (1), and the output end of the driving motor (3) fixedly installed on the lifting frame and its driving mechanism (1) is fixed to the double-chain lifting mechanism (2); the cylinder (4) is fixedly installed on the lifting frame and its driving mechanism (1). The lifting frame and its driving mechanism (1) include support rods (11), reinforcing crossbeams (12), reinforcing seats (13), auxiliary supports (14), a worm (15) and a worm gear (16). There are four support rods (11) in total. The reinforcing crossbeam (12) and the reinforcing seat (13) are fixedly installed on the four support rods (11). The cylinder (4) and the auxiliary support (14) are respectively fixedly installed on the two reinforcing seats (13). The driving motor (3) is fixedly installed on the auxiliary support (14), and the worm (15) is rotatably installed. Any end of the worm (15) is fixed to the output end of the driving motor (3); the worm (15) is meshed with the worm gear (16), and the worm gear (16) is fixed to any end of the driving shaft (21) of the double-chain lifting mechanism (2). The driving shaft (21) is rotatably installed on the support rod (11). The double-chain lifting mechanism (2) includes driving shafts (21), chain gears (22), lifting chains (23), lifting plates (24), rollers (25) and bearing plates (26). There are two driving shafts (21) in total. The two driving shafts (21) are respectively rotatably installed on two of the support rods (11); Two chain gears (22) are fixedly installed on the driving shaft (21) and are meshed with the lifting chains (23). The lifting plates (24) are fixedly installed on the two lifting chains (23). The bearing plate (26) is fixedly installed on the lifting plate (24), and the roller (25) is rotatably installed.

2. The elevator with a double-chain lifting system according to claim 1, characterized in that: There are two reinforcing seats (13) in total. The two reinforcing seats (13) are respectively a top seat and a bottom seat. The cylinder (4) is fixedly installed on the top seat. The output end of the cylinder (4) is fixed to a push plate. The push plate fixed to the output end of the cylinder (4) is located on one side between the two double-chain lifting mechanisms (2).

3. The elevator with a double-chain lifting system according to claim 2, characterized in that: The support rods (11), the reinforcing crossbeams (12) and the reinforcing seats (13) together construct the overall support frame structure; while the auxiliary support (14), the worm (15) and the worm gear (16) are the driving mechanism. The worm (15) has two helices with opposite helix directions, that is, one left helix and one right helix. These two helices with different helix directions are respectively meshed with the two worm gears (16).

4. The elevator with a double-chain lifting system according to claim 3, characterized in that: The driving motor (3) drives the driving shafts (21) of the two double-chain lifting mechanisms (2) to perform synchronous reverse rotational movements through a driving mechanism. The driving shafts (21) are located above or below the reinforcing cross beam (12), and the lifting chains (23) are arranged on the outer side of the reinforcing cross beam (12).

5. The elevator with a double-chain lifting system according to claim 4, characterized in that: The lifting plates (24) fixedly installed on the lifting chains (23) are of rectangular structures, and the rollers (25) rotatably installed on the lifting plates (24) are located between the two bearing plates (26).

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