Dual power synchronous elevator

Abstract

A double power synchronous elevator, including square channel splicing frame, drum conveying mechanism, lifting cylinder, synchronous lifter, dynamic sprocket assembly, chain and automatic control unit, through dynamic sprocket assembly, with the driving force of lifting cylinder to pneumatic rod, the transmission of dynamic pulley set composed of sprocket and chain, drive drum conveying mechanism to move up or down, with the synchronous lifter balance distribution power, ensure that the drum conveying mechanism moves stably, the utility model discloses a synchronous lifter, with mechanical mode lets the lifting driving force of double cylinder average distribution to the lifting seat on four guide columns, solve the double power elevator when lifting, still keep stable lifting under the condition that double cylinder is not absolutely synchronous or double cylinder pressure is not equal.

Description

Technical Field

[0001] This utility model relates to a conveying device, and more particularly to a lifting and conveying device. Background Technology

[0002] To lift and convey materials to the conveying device, existing technology involves installing a lift at the front end of the conveying device. This lifts the material from below the conveying plane to the conveying plane and connects it to the conveying device, allowing the material to be transferred from the lift to the conveying device. Most existing lifts use a dual-cylinder drive system with linear guide rails. Adjusting a dual-cylinder lift requires complete synchronization of the two cylinders in terms of driving force and speed, which relies heavily on the skill level of the technicians and is costly to achieve. If the two cylinders are not synchronized, it will result in insufficient lifting power, unstable lifting effect, and may even cause tilting of the material load and the conveying plane during the lifting process. Prolonged operation under asynchronous conditions can lead to loosening or rapid damage to lift components. Utility Model Content

[0003] The technical problem to be solved by this utility model is to avoid the shortcomings of the prior art and propose a dual-power synchronous lifting machine that can balance lifting power, improve lifting stability, and effectively prevent the adverse effects of the two cylinders being out of sync.

[0004] The present invention solves the aforementioned technical problem by adopting the following technical solution:

[0005] Design and manufacture a dual-power synchronous lifting platform, comprising a square tube splicing frame, a roller conveyor mechanism for carrying and conveying materials; particularly, it also includes two lifting cylinders and a synchronous lifting device fixedly installed within the square tube splicing frame, a sprocket assembly mounted on top of the lifting cylinders, a chain, and an automatic control unit; the synchronous lifting device includes four guide columns fixedly installed within the square tube splicing frame, lifting seats fitted onto the guide columns, and connecting rods connecting the lifting seats; racks are machined on the guide columns, and gears are provided within the lifting seats; by means of the meshing gears and racks, the lifting seats are fitted onto the guide columns and can move up and down along the guide columns; by means of the connecting rods connecting the lifting seats, the lifting seats on the four guide columns move in tandem; rollers The conveying mechanism is fixedly mounted on the lifting seat of the synchronous lifter; the moving sprocket assembly includes a pneumatic rod with a lifting cylinder installed at its bottom, a moving wheel rod installed at the top of the pneumatic rod, and rotatable moving wheels installed at both ends of the moving wheel rod; chain meshing teeth are machined on the wheel surface of the moving wheel; the chain meshes with the chain meshing teeth of the moving wheel through the chain gap, one end of the chain is connected to the bottom of the square tube splicing frame and the other end is connected to the roller conveying mechanism; the automatic control unit outputs control commands to control the inflation and deflation of the lifting cylinder; through the moving sprocket assembly, with the driving force of the lifting cylinder on the pneumatic rod, the moving pulley group composed of the moving wheel and the chain drives the roller conveying mechanism to move up or down, and the synchronous lifter balances the power distribution to ensure the smooth movement of the roller conveying mechanism.

[0006] To facilitate maintenance and prevent the roller conveyor mechanism from falling, the dual-power synchronous lift also includes a pneumatic anti-fall device. This pneumatic anti-fall device includes an anti-fall cylinder, a pneumatic anti-fall bar that can be extended and retracted by the anti-fall cylinder, and a position switch. When the roller conveyor mechanism moves and triggers the position switch, the automatic control unit outputs a command to activate the anti-fall cylinder, and the pneumatic anti-fall bar extends to support the roller conveyor mechanism and prevent it from falling.

[0007] To achieve dual fall protection, the dual-power synchronous lift also includes a manual fall protection bar; when it is necessary to prevent the roller conveyor mechanism from falling, the manual fall protection bar is operated to extend to the bottom of the roller conveyor mechanism to support it.

[0008] Compared with the existing technology, the technical advantages of this utility model "dual-power synchronous lifting platform" are as follows:

[0009] This invention uses a synchronous lifting device to mechanically distribute the lifting driving force of the two cylinders evenly to the lifting seats on the four guide columns, thus solving the problem of maintaining stable lifting even when the two cylinders are not absolutely synchronized or the air pressure of the two cylinders is not equal. Attached Figure Description

[0010] Figure 1This is an isometric projection schematic diagram of a preferred embodiment of the utility model "dual-power synchronous lifting machine" when the roller conveyor mechanism 2 is lifted to the highest position;

[0011] Figure 2 This is an isometric projection schematic diagram of a preferred embodiment of the present invention when the roller conveyor mechanism 2 descends to its lowest position;

[0012] Figure 3 This is an isometric projection schematic diagram of a preferred embodiment of the present invention after removing some components of the square tube splicing frame 1;

[0013] Figure 4 This is an isometric projection schematic diagram of the synchronous lifting device 7 according to a preferred embodiment of the present invention. Detailed Implementation

[0014] The following detailed description, in conjunction with the embodiments shown in the accompanying drawings, provides further insights.

[0015] This utility model proposes a dual-power synchronous lifting machine, such as... Figures 1 to 4 As shown, the system includes a square tube splicing frame 1, a roller conveyor mechanism 2 for carrying and conveying materials, two lifting cylinders 3 and a synchronous lifter 7 fixedly installed within the square tube splicing frame 1, a moving sprocket assembly 4 mounted on top of the lifting cylinders, a chain 5, an automatic control unit (not shown in the figure), and a power supply device. The square tube splicing frame 1 is used for the assembly and fixation of the entire dual-power synchronous lift. The roller conveyor mechanism 2 is used for conveying materials and connecting upper and lower material conveying devices; the rollers include electric rollers and powered rollers. Figure 4 As shown, the synchronous lifter 7 includes four guide columns 71 fixedly installed within the square tube splicing frame 1, lifting seats 72 fitted onto the guide columns 71, and connecting rods 73 connecting the lifting seats 72. Racks are machined on the guide columns 71, and gears are installed within the lifting seats 72. Through the meshing of the gears and racks, the lifting seats 72 are fitted onto the guide columns 71 and can move up and down along the guide columns 71. Through the connecting rods 73 connecting the lifting seats 72, the lifting seats 72 on the four guide columns 71 move in tandem. The synchronous lifter 7 is used for lifting guidance and balancing lifting forces. The four lifting seats 72 are connected in series using a gear and rack mechanism; when one lifting seat 72 experiences lifting force, it transmits the force to the other three. The roller conveyor mechanism 2 is fixedly installed on the lifting seats 72 of the synchronous lifter 7. Figure 3As shown, the moving sprocket assembly 4 includes a pneumatic rod 41 with a lifting cylinder 3 installed at its bottom, a moving wheel rod 42 installed at the top of the pneumatic rod 41, and rotatable moving wheels 43 installed at both ends of the moving wheel rod 42; chain meshing teeth are machined on the wheel surface of the moving wheel 43. The chain 5 meshes with the chain meshing teeth of the moving wheel 43 through the chain gap. One end of the chain 5 is connected to the bottom of the square tube splicing frame 1, and the other end is connected to the roller conveyor mechanism 2. The lifting and lowering process of the dual-power synchronous lift is as follows: the automatic control unit outputs control commands to control the inflation and deflation of the lifting cylinder 3; through the moving sprocket assembly 4, with the driving force of the lifting cylinder 3 on the pneumatic rod 41, the moving pulley group composed of the moving wheel 43 and the chain 5 drives the roller conveyor mechanism 2 to move up or down, and the synchronous lifter 7 balances the power distribution to ensure the smooth movement of the roller conveyor mechanism 2.

[0016] This invention utilizes a synchronous lifting device to mechanically distribute the lifting driving force of the two cylinders evenly to the lifting seats on four guide columns, thus solving the problem of maintaining stable lifting even when the two cylinders are not perfectly synchronized or have unequal air pressures. Testing showed that the two cylinders could still operate with a 0.5-second difference in movement, and the lifting effect was good even with a 0.2 MPa difference in air pressure.

[0017] To facilitate maintenance and prevent the roller conveyor mechanism 2 from falling, the preferred embodiment of this utility model is as follows: Figure 2 and Figure 3 As shown, it also includes a pneumatic anti-fall device 6, which includes an anti-fall cylinder, a pneumatic anti-fall rod that can be extended and retracted by the anti-fall cylinder, and a position switch. When the roller conveyor mechanism 2 moves and triggers the position switch (usually located on the displacement path of the roller conveyor mechanism), the automatic control unit outputs a command to activate the anti-fall cylinder, and the pneumatic anti-fall rod extends to support the roller conveyor mechanism 2, preventing the roller conveyor mechanism 2 from falling.

[0018] To achieve dual fall protection, the preferred embodiment of this utility model is as follows: Figure 3 As shown, it also includes a manual anti-fall bar 8; when it is necessary to prevent the roller conveyor mechanism 2 from falling, the manual anti-fall bar is operated to extend to the bottom of the roller conveyor mechanism 2 to support the roller conveyor mechanism 2. Figure 3 To demonstrate the manual fall arrestor, the manual fall arrestor 8 is extended when the roller conveyor mechanism 2 is in the low position.

Claims

1. A dual-power synchronous lifting platform, comprising a square tube splicing frame and a roller conveyor mechanism for carrying and conveying materials; characterized in that: It also includes two lifting cylinders and a synchronous lifter fixedly installed in the square tube splicing frame, a moving sprocket assembly, a chain, and an automatic control unit installed on the top of the lifting cylinders; The synchronous lifting device includes four guide columns fixedly installed in the square tube splicing frame, lifting seats fitted on the guide columns, and connecting rods connecting the lifting seats; racks are machined on the guide columns, and gears are installed in the lifting seats. With the help of the meshing gears and racks, the lifting seats are fitted on the guide columns and can move up and down along the guide columns; with the help of the connecting rods connecting the lifting seats, the lifting seats on the four guide columns move in linkage. The roller conveyor mechanism is fixedly installed on the lifting seat of the synchronous lifter; The drive sprocket assembly includes a pneumatic rod with a lifting cylinder installed at its bottom, a drive wheel rod installed at the top of the pneumatic rod, and rotatable drive wheels installed at both ends of the drive wheel rod; chain meshing teeth are machined on the wheel surface of the drive wheels; The chain engages with the chain teeth of the drive wheel through the chain gap. One end of the chain is connected to the bottom of the square tube splicing frame and the other end is connected to the roller conveyor mechanism. The automatic control unit outputs control commands to control the inflation and deflation of the lifting cylinder; through the moving sprocket assembly, with the driving force of the lifting cylinder on the pneumatic rod, the moving pulley group composed of the moving wheel and chain drives the roller conveyor to move up or down, and with the help of the synchronous lifting device to balance the power distribution, the roller conveyor moves smoothly.

2. The dual-power synchronous lifting platform according to claim 1, characterized in that: It also includes a pneumatic fall arrestor, which includes a fall arrestor cylinder, a pneumatic fall arrestor bar that can be extended and retracted by the fall arrestor cylinder, and a position switch; When the roller conveyor moves and triggers the position switch, the automatic control unit outputs a command to activate the anti-fall cylinder, and the pneumatic anti-fall rod extends to support the roller conveyor and prevent it from falling.

3. The dual-power synchronous lifting platform according to claim 1, characterized in that: It also includes manual fall arrestors; When it is necessary to prevent the roller conveyor from falling, operate the manual anti-fall bar to extend to the bottom of the roller conveyor to support it.

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