Four-way car elevator

Abstract

The utility model discloses a four-way car elevator which comprises a fixed base, a supporting vertical frame is fixedly installed on the top of the fixed base, a transmission shaft is rotatably connected to the top of the supporting vertical frame, and a lifting motor located on the rear side of the transmission shaft is fixedly installed on the top of the supporting vertical frame. Lifting sliding rails are fixedly installed on the two sides of the front face of the supporting vertical frame, a weight box located below the rotating shaft is slidably arranged in the supporting vertical frame, the lifting sliding rails are slidably connected with a lifting frame located above the fixed base, and one end of the rotating shaft is in transmission connection with the output end of a lifting motor. Transmission chain wheels located on the top of the supporting vertical frame are symmetrically installed in the middle of the transmission shaft. When the arranged sensor senses that the height of the lifting frame is not matched with that of the goods shelf, the threaded rod rotates, the lifting block drives the lifting frame to move up and down along the guide sliding rod, then the lifting frame is aligned with the goods shelf, and the situation that the height of the lifting frame is not aligned with that of the goods shelf is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to a four-way vehicle elevator. Background Art

[0002] The existing lifting mechanism consists of a power drive system (a speed-reducing variable-frequency motor equipped with an encoder), a rolling guiding mechanism, a counterweight mechanism, a car loading mechanism, and an electric control system. The up-and-down operation of the car is realized through the PLC control system. At the same time, there is an encoder precise positioning system to real-time feedback the running position of the car. After the signal connection between the electric control system and the upper computer system for dispatching, when the car stops at a specified position, the goods or the four-way vehicle are transported to the specified floor or specified height.

[0003] However, currently, most fast elevators are realized by using a chain structure or a traction machine. This type of method uses a flexible connection, and under different loads, it will show different amounts of expansion and contraction. In addition, problems such as settlement will occur when stopping, which will cause the positioning accuracy of the elevator to fail to meet the expectations.

[0004] Therefore, we propose a four-way vehicle elevator. Content of the Utility Model

[0005] The purpose of the utility model is to provide a four-way vehicle elevator to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A four-way vehicle elevator, including a fixed base, a support stand is fixedly installed on the top of the fixed base, a transmission shaft is rotatably connected to the top of the support stand, a lifting motor is fixedly installed on the top of the support stand and located behind the transmission shaft, lifting slide rails are fixedly installed on both sides of the front of the support stand, a counterweight box is slidably arranged inside the support stand and located below the rotating shaft, a lifting frame located above the fixed base is slidably connected to the lifting slide rails, one end of the rotating shaft is in transmission connection with the output end of the lifting motor, driving sprockets are symmetrically installed in the middle of the transmission shaft and located on the top of the support stand, a transmission chain is fixedly installed on the top of the lifting frame, the other end of the transmission chain is fixedly installed on the top of the counterweight box, the middle of the transmission chain is in transmission connection with the driving sprockets, a threaded rod is rotatably connected to the middle of the front of the lifting frame, an adjusting motor is fixedly installed at the bottom of the lifting frame, the output end of the adjusting motor is fixedly installed with the bottom of the threaded rod, the threaded rod penetrates through and is threadedly connected with a lifting block located on the front of the adjusting frame, a lifting frame is fixedly installed on the front of the lifting block, and a conveying roller is arranged inside the lifting frame.

[0007] Optionally, guiding slide rods are fixedly installed on the front side of the lifting frame on both sides of the threaded rod. Sliding blocks are fixedly installed on both sides at the rear of the lifting frame, and the middle parts of the sliding blocks are slidably connected through the guiding slide rods.

[0008] Optionally, a first synchronous pulley is fixedly installed at the output end of the lifting motor, a second synchronous pulley is fixedly installed at one end of the transmission shaft, and the first synchronous pulley is in transmission connection with the second synchronous pulley through a synchronous belt.

[0009] Optionally, limiting wheels are arranged on both sides of the counterweight box. Limiting slide rails are fixedly installed inside the supporting vertical frame on both sides of the counterweight box, and the limiting wheels are in rolling connection with the limiting slide rails.

[0010] Optionally, a number of counterweight blocks are arranged inside the counterweight box, and a damping buffer is arranged at the bottom of the counterweight box.

[0011] Optionally, the two guiding slide rods are symmetrically arranged on both sides of the front side of the lifting frame. The top of the threaded rod is flush with the top of the lifting frame, and the bottom of the adjusting motor is higher than the bottom of the lifting frame when it is at the lowest position.

[0012] Optionally, the length of the transmission chain is adapted to the height of the supporting vertical frame, and one ends of the two transmission chains are respectively fixedly installed on both sides of the top of the lifting frame.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. For this four-way vehicle elevator, by setting the threaded rod and the adjusting motor, after the four-way vehicle transports the goods to the conveying roller, the lifting motor drives the transmission shaft to rotate, and then drives the lifting frame and the lifting rack to rise to the required height through the transmission sprocket and the transmission chain. When the set sensor senses that the height of the lifting rack does not match that of the shelf, the adjusting motor is started, so that the threaded rod rotates, and then drives the lifting rack to move up and down along the guiding slide rod through the lifting block, so that the lifting rack is aligned with the shelf, preventing the situation that the height of the lifting rack is not aligned with that of the shelf.

[0015] 2. For this four-way vehicle elevator, by setting the counterweight box and the limiting slide rail, when the lifting motor drives the transmission shaft to rotate, and then drives the lifting frame and the lifting rack to rise to the required height through the transmission sprocket and the transmission chain, the counterweight box rolls through the limiting wheels and the limiting slide rails, so that the lifting frame and the lifting rack are lifted stably and smoothly without shaking, improving the transportation safety of the lifting frame and the lifting rack. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the four-way vehicle elevator of the present utility model;

[0017] Figure 2 This is a schematic structural diagram of the support vertical frame of the four-way vehicle elevator of the present utility model;

[0018] Figure 3 This is a schematic structural diagram of the lifting frame of the four-way vehicle elevator of the present utility model;

[0019] Figure 4 This is a schematic structural diagram of the threaded rod of the four-way vehicle elevator of the present utility model.

[0020] In the figure: 1, fixed base; 2, support vertical frame; 3, lifting motor; 4, transmission shaft; 5, transmission sprocket; 6, transmission chain; 7, lifting slide rail; 8, lifting frame; 9, counterweight box; 10, guide slide bar; 11, sliding block; 12, threaded rod; 13, adjustment motor; 14, lifting block; 15, lifting frame; 16, conveying roller; 17, limiting wheel; 18, limiting slide rail; 19, first synchronous wheel; 20, second synchronous wheel; 21, synchronous belt. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of 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.

[0022] Please refer to Figures 1 to 4, the present utility model provides a four-way vehicle elevator, which includes a fixed base 1. A support upright frame 2 is fixedly installed on the top of the fixed base 1. A transmission shaft 4 is rotatably connected to the top of the support upright frame 2. A lifting motor 3 located behind the transmission shaft 4 is fixedly installed on the top of the support upright frame 2. Lifting slide rails 7 are fixedly installed on both sides of the front of the support upright frame 2. A counterweight box 9 located below the rotating shaft is slidably arranged inside the support upright frame 2. The lifting slide rails 7 are slidably connected to a lifting frame 8 located above the fixed base 1. One end of the rotating shaft is in transmission connection with the output end of the lifting motor 3. Transmission sprockets 5 are symmetrically installed in the middle of the transmission shaft 4 on the top of the support upright frame 2. A transmission chain 6 is fixedly installed on the top of the lifting frame 8. The other end of the transmission chain 6 is fixedly installed on the top of the counterweight box 9. The middle of the transmission chain 6 is in transmission connection with the transmission sprocket 5. A threaded rod 12 is rotatably connected to the middle of the front of the lifting frame 8. An adjustment motor 13 is fixedly installed at the bottom of the lifting frame 8. The output end of the adjustment motor 13 is fixedly installed at the bottom of the threaded rod 12. The threaded rod 12 penetrates through and is threadedly connected to a lifting block 14 located on the front of the adjustment frame. A lifting frame 15 is fixedly installed on the front of the lifting block 14. A conveying roller 16 is arranged inside the lifting frame 15. By providing the threaded rod 12 and the adjustment motor 13, after the four-way vehicle conveys the goods to the conveying roller 16, the lifting motor 3 drives the transmission shaft 4 to rotate, and then drives the lifting frame 8 and the lifting frame 15 to rise to the required height through the transmission sprocket 5 and the transmission chain 6. When the set sensor senses that the height of the lifting frame 15 does not match the height of the shelf, the adjustment motor 13 is started, so that the threaded rod 12 rotates, and then drives the lifting frame 15 to move up and down along the guide slide rod 10 through the lifting block 14, so that the lifting frame 15 is aligned with the shelf, preventing the situation that the height of the lifting frame 15 is not aligned with the shelf.

[0023] On the front of the lifting frame 8, guiding slide rods 10 are fixedly installed on both sides of the threaded rod 12. On both sides of the rear side of the lifting frame 15, sliding blocks 11 are fixedly installed. The middle part of the sliding block 11 is slidably connected through the guiding slide rod 10. The output end of the lifting motor 3 is fixedly installed with a first synchronous pulley 19. One end of the transmission shaft 4 is fixedly installed with a second synchronous pulley 20. The first synchronous pulley 19 is in transmission connection with the second synchronous pulley 20 through a synchronous belt 21. On both sides of the counterweight box 9, limiting wheels 17 are arranged. Inside the supporting upright frame 2, limiting slide rails 18 are fixedly installed on both sides of the counterweight box 9. The limiting wheels 17 are in rolling connection with the limiting slide rails 18. Inside the counterweight box 9, a number of counterweight blocks are arranged. At the bottom of the counterweight box 9, a damping buffer is arranged. By arranging the counterweight box 9 and the limiting slide rails 18, when the lifting motor 3 drives the transmission shaft 4 to rotate, and then drives the lifting frame 8 and the lifting rack 15 to rise to the required height through the transmission sprocket 5 and the transmission chain 6, the counterweight box 9 rolls through the limiting wheels 17 and the limiting slide rails 18, so that the lifting frame 8 and the lifting rack 15 can be lifted stably and smoothly without shaking, improving the transportation safety of the lifting frame 8 and the lifting rack 15. The two guiding slide rods 10 are symmetrically arranged on both sides of the front of the lifting frame 8. The top of the threaded rod 12 is flush with the top of the lifting frame 8. The bottom of the adjusting motor 13 is higher than the bottom of the lifting rack 15 when it is at the lowest position. The length of the transmission chain 6 is adapted to the height of the supporting upright frame 2. One ends of the two transmission chains 6 are respectively fixedly installed on both sides of the top of the lifting frame 8.

[0024] Working principle:

[0025] After the four-way vehicle transports the goods to the conveying roller 16, the lifting motor 3 drives the transmission shaft 4 to rotate, and then drives the lifting frame 8 and the lifting rack 15 to rise to the required height through the transmission sprocket 5 and the transmission chain 6. When the set sensor senses that the height of the lifting rack 15 does not match the height of the shelf, the adjusting motor 13 is started, so that the threaded rod 12 rotates, and then drives the lifting block 14 to drive the lifting rack 15 to move up and down along the guiding slide rod 10, so that the lifting rack 15 is aligned with the shelf, preventing the situation that the height of the lifting rack 15 is not aligned with the shelf. When the lifting frame 8 and the lifting rack 15 are driven to rise to the required height through the transmission sprocket 5 and the transmission chain 6, the counterweight box 9 rolls through the limiting wheels 17 and the limiting slide rails 18, so that the lifting frame 8 and the lifting rack 15 can be lifted stably and smoothly without shaking, improving the transportation safety of the lifting frame 8 and the lifting rack 15.

[0026] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Four-way vehicle elevator, including a fixed base (1), characterized in that, A support vertical frame (2) is fixedly installed at the top of the fixed base (1). A transmission shaft (4) is rotatably connected to the top of the support vertical frame (2). A lifting motor (3) is fixedly installed at the top of the support vertical frame (2) and located at the rear side of the transmission shaft (4). Lifting slide rails (7) are fixedly installed on both sides of the front of the support vertical frame (2). A counterweight box (9) is slidably arranged inside the support vertical frame (2) and located below the rotating shaft. The lifting slide rails (7) are slidably connected to a lifting frame (8) located above the fixed base (1). One end of the rotating shaft is in transmission connection with the output end of the lifting motor (3). Transmission sprockets (5) are symmetrically installed in the middle of the transmission shaft (4) and located at the top of the support vertical frame (2). A transmission chain (6) is fixedly installed at the top of the lifting frame (8). The other end of the transmission chain (6) is fixedly installed at the top of the counterweight box (9). The middle of the transmission chain (6) is in transmission connection with the transmission sprocket (5). A threaded rod (12) is rotatably connected to the middle of the front of the lifting frame (8). An adjusting motor (13) is fixedly installed at the bottom of the lifting frame (8). The output end of the adjusting motor (13) is fixedly installed at the bottom of the threaded rod (12). The threaded rod (12) is threadedly connected through a lifting block (14) located in the front of the adjusting frame. A lifting frame (15) is fixedly installed on the front of the lifting block (14). A conveying roller (16) is arranged inside the lifting frame (15).

2. The four-way vehicle elevator according to claim 1, characterized in that, Guide slide rods (10) are fixedly installed on both sides of the front of the lifting frame (8) and located on both sides of the threaded rod (12). Sliding blocks (11) are fixedly installed on both sides of the rear of the lifting frame (15). The middle of the sliding block (11) is slidably connected through the guide slide rod (10).

3. The four-way vehicle elevator according to claim 1, characterized in that, A first synchronous pulley (19) is fixedly installed at the output end of the lifting motor (3). A second synchronous pulley (20) is fixedly installed at one end of the transmission shaft (4). The first synchronous pulley (19) is in transmission connection with the second synchronous pulley (20) through a synchronous belt (21).

4. The four-way vehicle elevator according to claim 1, characterized in that, Limit wheels (17) are arranged on both sides of the counterweight box (9). Limit slide rails (18) are fixedly installed inside the support vertical frame (2) and located on both sides of the counterweight box (9). The limit wheels (17) are in rolling connection with the limit slide rails (18).

5. The four-way vehicle elevator according to claim 4, characterized in that, A number of counterweight blocks are arranged inside the counterweight box (9). A damping buffer is arranged at the bottom of the counterweight box (9).

6. The four-way vehicle elevator according to claim 2, wherein, The two guide slide rods (10) are symmetrically arranged on both sides of the front of the lifting frame (8). The top of the threaded rod (12) is flush with the top of the lifting frame (8). The bottom of the adjusting motor (13) is higher than the bottom of the lifting frame (15) when it is at the lowest position.

7. The four-way vehicle elevator according to claim 1, characterized in that, The length of the transmission chain (6) is adapted to the height of the support vertical frame (2). One ends of the two transmission chains (6) are respectively fixedly installed on both sides of the top of the lifting frame (8).

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