A multi-chain lifting mechanism and its usage method

Abstract

This invention discloses a multi-chain lifting mechanism, comprising: a frame, a lifting mechanism, a lifting platform, and a multi-chain transmission mechanism. The lifting mechanism includes a mounting plate and multiple guiding mechanisms, multiple vertical guiding mechanisms, chain connecting blocks, and guide blocks mounted on the mounting plate. The multi-chain transmission mechanism includes a vertical lifting chain transmission mechanism and a horizontal synchronous chain transmission mechanism at the bottom of the frame. The lifting platform cooperates with the lifting mechanism. The synchronous chain transmission mechanism, in conjunction with the lifting chain transmission mechanism, drives the lifting mechanism and the lifting platform connected to it to rise or fall. The guiding mechanisms and vertical guiding mechanisms in the lifting mechanism are in contact with three sides of a U-shaped guide plate, providing guidance and improving the overall structure and its operational stability, thereby increasing production efficiency. This invention has a simple structure, good stability, and strong adaptability.

Description

Technical Field

[0001] This invention relates to a multi-chain lifting mechanism and its method of use. Background Technology

[0002] Currently, some lifting mechanisms on the market are either overly complex in structure, lack stability, or are only suitable for a limited range of working conditions. Therefore, our company decided to research new products to address this problem. This invention aims to provide a simpler and more effective chain lifting mechanism to achieve superior lifting performance and stability, while also being highly adaptable. Summary of the Invention

[0003] The purpose of this invention is to provide a multi-chain lifting mechanism to achieve better lifting effect and stability, while enhancing adaptability, thereby improving production efficiency.

[0004] To achieve the above objectives, the embodiments of the present invention provide the following technical solutions:

[0005] A multi-chain lifting mechanism, comprising:

[0006] The frame is a rectangular frame formed by horizontal and vertical steel sections, and a U-shaped guide plate formed by channel steel with an inward opening is provided in the middle of the left and right sides.

[0007] The lifting mechanism includes a mounting plate and multiple guide mechanisms, multiple vertical guide mechanisms, chain connecting blocks, guide blocks, and adjusting blocks mounted on the mounting plate. Multiple chain connecting rods are symmetrically mounted on the chain connecting blocks, and adjusting screws and nuts are mounted on the adjusting blocks for adjusting the front-to-back position of the guide mechanisms. There are two lifting mechanisms, symmetrically located on the inner sides of both sides of the frame. The chain connecting blocks are located at both ends of the mounting plate facing outwards from the frame, and the guide mechanisms and vertical guide mechanisms are located at the middle of the mounting plate facing outwards from the frame.

[0008] The lifting platform includes a rectangular support frame with guide positioning blocks installed at the four corners of its bottom. Symmetrical wheel mounting frames are installed on the left and right sides next to the guide positioning blocks. Wheels are mounted on the wheel mounting frames via wheel axles. A drive block is also installed at the bottom for connection with the pawl when the lifting platform needs to be moved.

[0009] The multi-chain drive mechanism consists of lifting chain drive mechanisms located vertically at the four corners of the frame and symmetrical synchronous chain drive mechanisms located horizontally at the bottom of the frame. The lifting chain drive mechanisms at the four corners consist of corresponding sprockets and long chains. The upper sprockets are mounted on the top of the frame by sprocket mounting seats, and the lower sprockets are mounted on the frame by a long drive shaft, a short drive shaft, and a bearing seat. The synchronous chain drive mechanism includes a long drive shaft located at the front of the bottom of the frame, a short drive shaft located at the rear, sprockets located on the long drive shaft and the short drive shaft, and a short chain connecting the outer ends of the long drive shaft and the short drive shaft. One end of the long drive shaft is also provided with a drive sprocket for connecting the power source.

[0010] The active sprocket drive rotates the sprocket, and through the linkage of the long drive shaft, short drive shaft, short chain, and long sprocket, the long chain rotates synchronously in four directions. Multiple chain drive mechanisms and lifting mechanisms are connected to the chain connecting rods via chain buckles on the long chain, and are symmetrically installed on both sides of the frame. The guide mechanism and vertical guide mechanism in the lifting mechanism are in contact with three sides of the U-shaped guide plate, so as to guide the lifting mechanism when the long chain drives it to lift, improve the overall structure and its operational stability, and improve production efficiency. The lifting platform and lifting mechanism are embedded in the guide block in the lifting mechanism and the guide positioning block in the lifting platform through the embedded groove, so that the long chain drives the lifting mechanism to lift and lower, and simultaneously drives the lifting platform to lift and lower.

[0011] Furthermore, an idler wheel is provided below the short chain. The idler wheel is installed via a mounting base connected to the frame, an adjusting shaft, an adjusting screw, and an adjusting nut. The tension of the short chain can be adjusted by adjusting the up and down position of the idler wheel. Specifically, the position is adjusted by the adjusting shaft, adjusting screw, and adjusting nut.

[0012] Furthermore, the guiding mechanism consists of a guide wheel mounting plate, a guide wheel shaft, a bearing, an inner snap ring, and a guide wheel, which is used to cooperate with the outer side wall of the U-shaped guide plate.

[0013] Furthermore, the vertical guide mechanism is a left-right symmetrical structure, specifically composed of a vertical guide wheel mounting plate, an adjusting plate, an adjusting screw, an adjusting nut, a vertical guide wheel shaft, a vertical guide wheel, a bearing, and an inner snap ring, which is used to cooperate with the inner wall of the groove of the U-shaped guide plate.

[0014] Furthermore, both the guide wheel and the vertical guide wheel are adjustable back and forth to adjust the fit between the guide wheel and the U-shaped guide plate. The vertical guide wheel shaft consists of a central cylindrical section and two cuboid sections at both ends. The bottom surface of the adjusting screw contacts one side of the guide wheel shaft. The front and rear positions of the vertical guide wheel are adjusted by changing the length of the symmetrical adjusting screws on both sides of the fixed adjusting plate. Finally, the adjusting nut is tightened to achieve the final adjusted position. One end of the guide wheel mounting plate faces the adjusting block, and the front and rear positions of the guiding mechanism can be adjusted as a whole by the adjusting screws and adjusting nuts provided on the adjusting block.

[0015] Accordingly, the present invention provides a method of using it, applied to the multi-chain lifting mechanism provided by the present invention, comprising:

[0016] Step 1: Push or pull the lifting platform loaded with goods to the lifting mechanism, so that the guide block in the lifting mechanism is embedded in the embedded slot on the guide positioning block in the lifting platform;

[0017] Step 2: Use a motor to drive the drive sprocket, which will rotate the sprocket. Through the linkage of the long drive shaft, short drive shaft, short chain and long sprocket, the long chains in four directions will rotate synchronously, which will drive the lifting platform to rise or fall.

[0018] Preferably, the platform is raised or lowered by controlling the forward or reverse rotation of the drive sprocket.

[0019] The beneficial effects of this invention are:

[0020] This invention features a simple structure, good stability, and strong adaptability. The guiding mechanism and vertical guiding mechanism in the lifting mechanism work together with the U-shaped guide plate to achieve guidance, improve the overall structure and its operational stability, and increase production efficiency. The idler wheel located below the short chain can adjust the tension of the short chain. The guide wheel can be adjusted back and forth to adapt to the working conditions after the guide wheel or U-shaped guide plate has worn down. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present invention;

[0022] Figure 2 yes Figure 1 A magnified view of a portion of point I;

[0023] Figure 3 yes Figure 1 Enlarged view of section II;

[0024] Figure 4 This is a schematic diagram of the lifting mechanism according to an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the lifting platform according to an embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram of the structure of the multi-chain transmission mechanism according to an embodiment of the present invention;

[0027] Figure 7 yes Figure 6 A magnified view of a portion of point I;

[0028] Figure 8 yes Figure 6 Enlarged view of section II;

[0029] The annotations in the attached figures are explained as follows:

[0030] 1. Rack

[0031] 101. U-shaped guide plate

[0032] 2. Upgrading the organization

[0033] 201. Guiding Mechanism

[0034] 202. Vertical guide mechanism

[0035] 203. Chain connecting block

[0036] 204. Chain connecting rod

[0037] 205. Guide block

[0038] 206. Adjusting block

[0039] 207. Adjusting screw

[0040] 208. Adjusting nut

[0041] 209. Mounting plate

[0042] 3. Upgrade the platform

[0043] 301. Wheel mounting bracket

[0044] 302. Traveling wheel axle

[0045] 303. Walking wheels

[0046] 304. Driver Block

[0047] 305. Guide positioning block

[0048] 306. Embedded slot

[0049] 307. Support frame

[0050] 4. Multi-chain drive mechanism

[0051] 401. Lifting Chain Drive Mechanism

[0052] 402. Synchronous chain drive

[0053] 403. Sprockets

[0054] 404. Long chain

[0055] 405. Sprocket Mounting Base

[0056] 406. Long drive shaft

[0057] 407. Short drive shaft

[0058] 408. Bearing housing

[0059] 409. Short chain

[0060] 410. Drive sprocket

[0061] 411. Chain buckle

[0062] 5. Idler wheel

[0063] 501. Mounting bracket

[0064] 502. Adjusting Shaft

[0065] 503. Adjusting screw

[0066] 504. Adjusting nut. Detailed Implementation

[0067] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0068] In this embodiment of the invention, directional indicators (such as up, down, left, right, front, back, etc.) are only used to explain the relative positional relationship and movement of each component in a specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0069] Furthermore, in the embodiments of the present invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature.

[0070] Please refer to Figures 1-8 A multi-chain lifting mechanism, comprising:

[0071] The frame is a rectangular frame formed by horizontal and vertical steel sections, and a U-shaped guide plate formed by channel steel with an inward opening is provided in the middle of the left and right sides.

[0072] The lifting mechanism includes a mounting plate and multiple guide mechanisms, multiple vertical guide mechanisms, chain connecting blocks, guide blocks, and adjusting blocks mounted on the mounting plate. Multiple chain connecting rods are symmetrically mounted on the chain connecting blocks, and adjusting screws and nuts are mounted on the adjusting blocks for adjusting the front-to-back position of the guide mechanisms. There are two lifting mechanisms, symmetrically located on the inner sides of both sides of the frame. The chain connecting blocks are located at both ends of the mounting plate facing outwards from the frame, and the guide mechanisms and vertical guide mechanisms are located at the middle of the mounting plate facing outwards from the frame.

[0073] The lifting platform includes a rectangular support frame with guide positioning blocks installed at the four corners of its bottom. Symmetrical wheel mounting frames are installed on the left and right sides next to the guide positioning blocks. Wheels are mounted on the wheel mounting frames via wheel axles. A drive block is also installed at the bottom for connection with the pawl when the lifting platform needs to be moved.

[0074] The multi-chain drive mechanism consists of lifting chain drive mechanisms located vertically at the four corners of the frame and symmetrical synchronous chain drive mechanisms located horizontally at the bottom of the frame. The lifting chain drive mechanisms at the four corners consist of corresponding sprockets and long chains. The upper sprockets are mounted on the top of the frame by sprocket mounting seats, and the lower sprockets are mounted on the frame by a long drive shaft, a short drive shaft, and a bearing seat. The synchronous chain drive mechanism includes a long drive shaft located at the front of the bottom of the frame, a short drive shaft located at the rear, sprockets located on the long drive shaft and the short drive shaft, and a short chain connecting the outer ends of the long drive shaft and the short drive shaft. One end of the long drive shaft is also provided with a drive sprocket for connecting the power source.

[0075] The active sprocket drive rotates the sprocket, and through the linkage of the long drive shaft, short drive shaft, short chain, and long sprocket, the long chain rotates synchronously in four directions. Multiple chain drive mechanisms and lifting mechanisms are connected to the chain connecting rods via chain buckles on the long chain, and are symmetrically installed on both sides of the frame. The guide mechanism and vertical guide mechanism in the lifting mechanism are in contact with three sides of the U-shaped guide plate, so as to guide the lifting mechanism when the long chain drives it to lift, improve the overall structure and its operational stability, and improve production efficiency. The lifting platform and lifting mechanism are embedded in the guide block in the lifting mechanism and the guide positioning block in the lifting platform through the embedded groove, so that the long chain drives the lifting mechanism to lift and lower, and simultaneously drives the lifting platform to lift and lower.

[0076] In one embodiment, an idler wheel is provided below the short chain. The idler wheel is installed via a mounting base connected to the frame, an adjusting shaft, an adjusting screw, and an adjusting nut. The tension of the short chain can be adjusted by adjusting the up and down position of the idler wheel. Specifically, the position is adjusted by the adjusting shaft, adjusting screw, and adjusting nut.

[0077] In one embodiment, the guiding mechanism consists of a guide wheel mounting plate, a guide wheel shaft, a bearing, an inner snap ring, and a guide wheel, which is used to cooperate with the outer side wall of the U-shaped guide plate.

[0078] In one embodiment, the vertical guide mechanism is a left-right symmetrical structure, specifically composed of a vertical guide wheel mounting plate, an adjusting plate, an adjusting screw, an adjusting nut, a vertical guide wheel shaft, a vertical guide wheel, a bearing, and an inner snap ring, which is used to cooperate with the inner wall of the groove of the U-shaped guide plate.

[0079] In one implementation, both the guide wheel and the vertical guide wheel are adjustable back and forth to adjust the fit between the guide wheel and the U-shaped guide plate. The vertical guide wheel shaft consists of a central cylindrical section and two cuboid sections at either end. The bottom surface of the adjusting screw contacts one side of the guide wheel shaft. The front-to-back position of the vertical guide wheel is adjusted by changing the length of the symmetrical adjusting screws on both sides of the fixed adjusting plate. Finally, the adjusting nut is tightened to achieve the final adjusted position. One end of the guide wheel mounting plate faces the adjusting block, and the front-to-back position of the guiding mechanism can be adjusted as a whole by the adjusting screws and nuts on the adjusting block.

[0080] Accordingly, embodiments of the present invention provide a method of using it, applied to the multi-chain lifting mechanism provided in embodiments of the present invention, including:

[0081] Step 1: Push or pull the lifting platform loaded with goods to the lifting mechanism, so that the guide block in the lifting mechanism is embedded in the embedded slot on the guide positioning block in the lifting platform;

[0082] Step 2: Use a motor to drive the drive sprocket, which will rotate the sprocket. Through the linkage of the long drive shaft, short drive shaft, short chain and long sprocket, the long chains in four directions will rotate synchronously, which will drive the lifting platform to rise or fall.

[0083] In one implementation, the forward or reverse rotation of the sprocket in step 2 can be used to control the lifting platform to rise or fall.

[0084] The embodiments of the present invention have a simple structure, good stability, and strong adaptability. The guiding mechanism and vertical guiding mechanism in the lifting mechanism cooperate with the U-shaped guide plate to achieve guidance, improve the overall structure and its running stability, and improve production efficiency. The idler wheel provided below the short chain can adjust the tension of the short chain. The guide wheel can be adjusted back and forth to adapt to the working conditions after the guide wheel or U-shaped guide plate is worn.

[0085] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-chain lifting mechanism, characterized in that, include: The frame is a rectangular frame formed by horizontal and vertical steel sections, and a U-shaped guide plate formed by channel steel with an inward opening is provided in the middle of the left and right sides. The lifting mechanism includes a mounting plate and multiple guide mechanisms, multiple vertical guide mechanisms, chain connecting blocks, guide blocks, and adjusting blocks mounted on the mounting plate. Multiple chain connecting rods are symmetrically mounted on the chain connecting blocks, and adjusting screws and nuts are mounted on the adjusting blocks for adjusting the front-to-back position of the guide mechanisms. There are two lifting mechanisms, symmetrically located on the inner sides of both sides of the frame. The chain connecting blocks are located at both ends of the mounting plate facing outwards from the frame, and the guide mechanisms and vertical guide mechanisms are located at the middle of the mounting plate facing outwards from the frame. The lifting platform includes a rectangular support frame with guide positioning blocks installed at the four corners of its bottom. Symmetrical wheel mounting frames are installed on the left and right sides next to the guide positioning blocks. Wheels are mounted on the wheel mounting frames via wheel axles. A drive block is also installed at the bottom for connection with the pawl when the lifting platform needs to be moved. The multi-chain drive mechanism consists of lifting chain drive mechanisms located at the four corners of the frame in the vertical direction, and synchronous chain drive mechanisms located on the left and right sides in the horizontal direction at the bottom of the frame. The lifting chain drive mechanisms at the four corners consist of corresponding upper and lower sprockets and long chains. The upper sprockets are mounted on the top of the frame by sprocket mounting seats, and the lower sprockets are mounted on the frame by a long drive shaft, a short drive shaft, and a bearing seat. The synchronous chain drive mechanism includes a long drive shaft located at the front of the bottom of the frame, a short drive shaft located at the rear, sprockets located on the long drive shaft and the short drive shaft, and a short chain connecting the outer ends of the long drive shaft and the short drive shaft. One end of the long drive shaft is also provided with a drive sprocket for connecting the power source. The active sprocket drive rotates the sprocket, achieving synchronous rotation of the long chain in four directions through the linkage of a long drive shaft, a short drive shaft, a short chain, and a long sprocket. Multiple chain drive mechanisms and lifting mechanisms are connected to the chain connecting rod via chain buckles on the long chain, and are symmetrically installed on both sides of the frame. The guide mechanism and vertical guide mechanism in the lifting mechanism are in contact with three sides of the U-shaped guide plate, providing guidance when the long chain drives the lifting mechanism to lift, improving the overall structure and its operational stability, and increasing production efficiency. The lifting platform and lifting mechanism are connected by the guide block in the lifting mechanism and the embedded groove on the guide positioning block in the lifting platform, so that the long chain drives the lifting mechanism to lift and lower simultaneously with the lifting platform. The guide mechanism consists of a guide wheel mounting plate, guide wheel shaft, bearing, inner retaining spring, and guide wheel, and is used to engage with the U-shaped guide plate. The vertical guide mechanism, which mates with the outer side wall of the guide plate, is a symmetrical structure consisting of a vertical guide wheel mounting plate, an adjusting plate, adjusting screws, adjusting nuts, a vertical guide wheel shaft, a vertical guide wheel, bearings, and an inner retaining spring. It mates with the inner wall of the groove in the U-shaped guide plate. Both the guide wheel and the vertical guide wheel are adjustable back and forth to adjust the fit between the guide wheel and the U-shaped guide plate. The vertical guide wheel shaft consists of a central cylindrical section and two cuboid sections at either end. The bottom surface of the adjusting screw contacts one side of the vertical guide wheel shaft. The back-and-forth position of the vertical guide wheel is adjusted by changing the length of the symmetrical adjusting screws on both sides of the fixed adjusting plate. Finally, the adjusting nut is tightened to achieve the final adjusted position. One end of the guide wheel mounting plate faces the adjusting block, and the back-and-forth position of the guide mechanism can be adjusted as a whole by the adjusting screws and adjusting nuts on the adjusting block.

2. The multi-chain lifting mechanism as described in claim 1, characterized in that, The short chain is equipped with an idler wheel below it. The idler wheel is installed via a mounting base connected to the frame, an adjusting shaft, an adjusting screw, and an adjusting nut. The tension of the short chain can be adjusted by adjusting the up and down position of the idler wheel. Specifically, the position is adjusted by the adjusting shaft, adjusting screw, and adjusting nut.

3. A method of using a multi-chain lifting mechanism, characterized in that, The multi-chain lifting mechanism described in claim 1 includes: Step 1: Push or pull the lifting platform loaded with goods to the lifting mechanism, so that the guide block in the lifting mechanism is embedded in the embedded slot on the guide positioning block in the lifting platform; Step 2: Use a motor to drive the drive sprocket, which will rotate the sprocket. Through the linkage of the long drive shaft, short drive shaft, short chain and long sprocket, the long chains in four directions will rotate synchronously, driving the lifting platform to rise or fall.

4. The method of using the multi-chain lifting mechanism as described in claim 3, characterized in that, The platform is raised or lowered by controlling the forward or reverse rotation of the active sprocket.

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