Reinforcing method for drag chain connector of stacking machine in refrigeration house

Abstract

The invention discloses a method for reinforcing a drag chain connector of a stacking machine in a refrigeration house. The problem that the drag chain connector is prone to breakage is solved. A drag chain connector at the end of the drag chain is integrally wrapped by a U-shaped steel cover and then fixedly connected with a rack of the stacking machine, when the stacking machine works in a low-temperature environment of a refrigeration house, after the drag chain connector is subjected to low-temperature embrittlement, the U-shaped steel cover on the drag chain connector transmits unbalanced force transmitted by the drag chain to the drag chain connector, and then the drag chain connector is fixedly connected with the rack of the stacking machine. The U-shaped steel cover is directly transmitted to the drag chain fixing support, so that a drag chain connector made of plastic is prevented from being fractured at the connecting position.

Description

Technical Field

[0001] This invention relates to a stacker crane, and more particularly to a method for reinforcing the drag link joint of a stacker crane in a cold storage facility. Background Technology

[0002] In automated storage and retrieval systems (AS / RS), the power supply for stacker crane loading platforms typically uses cable chains and flexible cables. Currently, all cable chains on the market are made of plastic, as are the cable chain connectors. While these cables function normally at room temperature, in cold storage environments where the temperature is around -20°C, the plastic cable chains harden and become brittle. Furthermore, due to the frequent operation of the stacker crane in these low-temperature conditions, localized stress increases at the connection between the plastic cable chain connectors and the crane. The brittle connectors, subjected to frequent oscillations and stress, are prone to breakage, causing the stacker crane to alarm and shut down. The low-temperature environment in cold storage also makes cable chain replacement extremely difficult. Therefore, designing a cable chain connector reinforcement mechanism to overcome these problems has become a key issue that needs to be addressed on-site. Summary of the Invention

[0003] This invention provides a method for reinforcing the drag link of a stacker crane in a cold storage facility, solving the technical problem of drag link joints being prone to breakage.

[0004] The present invention solves the above technical problems through the following technical solutions: A reinforcement mechanism for the drag chain joint of a stacker crane in a cold storage facility includes a stacker crane frame and a stacker crane loading platform. A drag chain fixed connection bracket is fixedly installed on the stacker crane frame, and a drag chain movable connection bracket is installed on the stacker crane loading platform. A plastic drag chain that supplies power to the loading platform is installed between the drag chain fixed connection bracket and the drag chain movable connection bracket. The drag chain fixed connection bracket is a steel L-shaped connecting plate. A pair of left-side screw holes and a pair of right-side screw holes are respectively provided on the horizontal plate at the lower end of the L-shaped connecting plate. A drag chain end is provided at the end of the drag chain, and a left-side opening is provided on the drag chain end. The left and right sides of the U-shaped frame each have a pair of left frame top connecting screw holes at the top of the left U-shaped frame and a pair of right frame top connecting screw holes at the top of the right U-shaped frame. The left-side screw holes of the connecting plates correspond to the left frame top connecting screw holes, and the right-side screw holes of the connecting plates correspond to the right frame top connecting screw holes. Similarly, the left U-shaped frame has a pair of left frame side frame connecting screw holes on its front and rear sides, and the right U-shaped frame has a pair of right frame side frame connecting screw holes on its front and rear sides. The U-shaped frame is embedded in the steel left-side box. A pair of bolt holes for the top of the left box are located on the top plate of the left-side box, and corresponding bolt holes for the side plates of the left-side box are located on the front and rear uprights of the left-side box. The U-shaped frame on the right-side box is embedded in the steel right-side box. A pair of bolt holes for the top of the right-side box are located on the top plate of the right-side box, and corresponding bolt holes for the side plates of the right-side box are located on the front and rear uprights of the right-side box. A connecting steel plate is fixedly connected between the rear uprights of the left and right-side boxes. The steel left-side box and the steel right-side box... The side box and the connecting steel plate form an integral frame that covers the end of the cable chain; a transverse connecting bolt is provided between the connecting screw holes on a pair of left frame side frames and the bolt through holes on a pair of left box side plates; another transverse connecting bolt is provided between the connecting screw holes on a pair of right frame side frames and the bolt through holes on a pair of right box side plates; a longitudinal connecting bolt is provided between the screw holes on the left side of a pair of connecting plates, the bolt through holes on the top of a pair of left box and the connecting screw holes on the top of a pair of left frames; another longitudinal connecting bolt is provided between the screw holes on the right side of a pair of connecting plates, the bolt through holes on the top of a pair of right box and the connecting screw holes on the top of a pair of right frames.

[0005] The structure of the moving connection bracket of the cable chain is exactly the same as that of the fixed connection bracket of the cable chain; another integral frame covering the end of the cable chain is provided at the end of the cable chain connected to the moving connection bracket of the cable chain, and the structure of the other integral frame is exactly the same as that of the integral frame covering the end of the cable chain.

[0006] In this invention, the cable chain end cap is completely covered by a U-shaped steel cover before being fixedly connected to the stacker crane frame. When the stacker crane operates in a low-temperature environment in a cold storage facility, the cable chain end cap may become brittle due to low temperature. The U-shaped steel cover on the cable chain end cap will directly transmit the uneven force from the cable chain to the cable chain fixing bracket through the U-shaped steel cover, thus protecting the plastic cable chain end cap from breaking at the connection point. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the connection structure between the drag chain 6 and the stacker crane frame of the present invention; Figure 3 This is a schematic diagram of the connection structure between the drag chain 6 and the stacker crane loading platform of the present invention; Figure 4 This is an exploded view showing the connection relationship between the cable chain fixing bracket 2, the cable chain end 5, and the overall frame of the present invention. Detailed Implementation

[0008] The present invention will now be described in detail with reference to the accompanying drawings: A reinforcement mechanism for the drag chain joint of a stacker crane in a cold storage facility includes a stacker crane frame 1 and a stacker crane loading platform 3. A drag chain fixed connection bracket 2 is fixedly installed on the stacker crane frame 1, and a drag chain movable connection bracket 4 is installed on the stacker crane loading platform 3. A plastic drag chain 6, which supplies power to the loading platform, is installed between the drag chain fixed connection bracket 2 and the drag chain movable connection bracket 4. The drag chain fixed connection bracket 2 is a steel L-shaped connecting plate. A pair of left-side screw holes 2-1 and a pair of right-side screw holes 2-2 are respectively provided on the horizontal plate at the lower end of the L-shaped connecting plate. A drag chain end 5 is provided at the end of the drag chain 6. A left-side U-shaped frame 5-1 and a right-side U-shaped frame 5-2 are respectively provided on the drag chain end 5. The top of frame 5-1 has a pair of left frame top connecting screw holes 5-1-2, and the top of the right U-shaped frame 5-2 has a pair of right frame top connecting screw holes 5-2-2. The left side screw holes 2-1 of a pair of connecting plates correspond to the left frame top connecting screw holes 5-1-2, and the right side screw holes 2-2 of a pair of connecting plates correspond to the right frame top connecting screw holes 5-2-2. The front and rear side frames of the left U-shaped frame 5-1 have a pair of left frame side frame connecting screw holes 5-1-1, and the front and rear side frames of the right U-shaped frame 5-2 have a pair of right frame side frame connecting screw holes 5-2-1. The left U-shaped frame 5-1 is embedded into the steel left side box. In section 8-1, a pair of left box top bolt through holes 8-1-2 are provided on the top plate of the left box 8-1, and a pair of left box side plate bolt through holes 8-1-1 are provided on the front and rear upright plates of the left box 8-1. The right U-shaped frame 5-2 is embedded in the steel right box 8-2. A pair of right box top bolt through holes 8-2-2 are provided on the top plate of the right box 8-2, and a pair of right box side plate bolt through holes 8-2-1 are provided on the front and rear upright plates of the right box 8-2. A connecting steel plate 8 is fixedly connected between the rear upright plate of the left box 8-1 and the rear upright plate of the right box 8-2. The steel left box 8-1, the steel right box 8-2, and the connecting steel plate 8 are all connected. Steel plates 8 form an overall frame that covers the cable chain end 5; a transverse connecting bolt 9 is provided between the connecting screw holes 5-1-1 on a pair of left frame side frames and the bolt through holes 8-1-1 on a pair of left box side plates; another transverse connecting bolt is provided between the connecting screw holes 5-2-1 on a pair of right frame side frames and the bolt through holes 8-2-1 on a pair of right box side plates; a longitudinal connecting bolt 10 is provided between the left screw holes 2-1 on a pair of connecting plates, the bolt through holes 8-1-2 on the top of a pair of left boxes, and the connecting screw holes 5-1-2 on the top of a pair of left frames; another longitudinal connecting bolt is provided between the right screw holes 2-2 on a pair of connecting plates, the bolt through holes 8-2-2 on the top of a pair of right boxes, and the connecting screw holes 5-2-2 on the top of a pair of right frames.

[0009] A method for reinforcing the cable chain joint of a stacker crane in a cold storage facility includes a plastic cable chain (6) for powering the loading platform, located between a fixed cable chain support bracket (2) and a movable cable chain support bracket (4). The fixed cable chain support bracket (2) is a steel L-shaped connecting plate. A pair of left-side screw holes (2-1) and a pair of right-side screw holes (2-2) are respectively provided on the horizontal plate at the lower end of the L-shaped connecting plate. A cable chain end (5) is provided at the end of the cable chain (6), and a left-side U-shaped frame (5-1) and a... The right-side U-shaped frame (5-2) has a pair of left frame top connecting screw holes (5-1-2) at the top of the left U-shaped frame (5-1), and a pair of right frame top connecting screw holes (5-2-2) at the top of the right-side U-shaped frame (5-2). The left-side screw holes (2-1) of the pair of connecting plates correspond to the pair of left frame top connecting screw holes (5-1-2), and the right-side screw holes (2-2) of the pair of connecting plates correspond to the pair of right frame top connecting screw holes (5-2-2). The feature includes the following steps: Step 1: Set a pair of left frame side frame connecting screw holes (5-1-1) on the front and rear frames of the left square frame (5-1), and set a pair of right frame side frame connecting screw holes (5-2-1) on the front and rear frames of the right square frame (5-2). Step 2: A pair of left box top bolt through holes (8-1-2) are set on the top plate of the left box (8-1), and a pair of left box side plate bolt through holes (8-1-1) are set on the front and rear upright plates of the left box (8-1); a pair of right box top bolt through holes (8-2-2) are set on the top plate of the right box (8-2), and a pair of right box side plate bolt through holes (8-2-1) are set on the front and rear upright plates of the right box (8-2); a connecting steel plate (8) is fixedly connected between the rear upright plate of the left box (8-1) and the rear upright plate of the right box (8-2). Step 3: The left square frame (5-1) is embedded into the steel left box (8-1), and the right square frame (5-2) is embedded into the steel right box (8-2). Step 4: A transverse connecting bolt (9) is provided between the connecting screw holes (5-1-1) on a pair of left frame side frames and the bolt through holes (8-1-1) on a pair of left box side plates. Another transverse connecting bolt is provided between the connecting screw holes (5-2-1) on a pair of right frame side frames and the bolt through holes (8-2-1) on a pair of right box side plates. A longitudinal connecting bolt (10) is provided between the left screw holes (2-1) on a pair of connecting plates, the bolt through holes (8-1-2) on the top of a pair of left boxes, and the connecting screw holes (5-1-2) on the top of a pair of left frames. Another longitudinal connecting bolt is provided between the right screw holes (2-2) on a pair of connecting plates, the bolt through holes (8-2-2) on the top of a pair of right boxes, and the connecting screw holes (5-2-2) on the top of a pair of right frames.

[0010] The structure of the drag chain moving connection bracket 4 is exactly the same as that of the drag chain fixed connection bracket 2; another integral frame covering the drag chain end is provided at the drag chain end connected to the drag chain moving connection bracket 4, and the structure of this other integral frame is exactly the same as that of the integral frame covering the drag chain end 5.

Claims

1. A method for reinforcing the cable chain joint of a stacker crane in a cold storage, wherein a plastic cable chain (6) for supplying power to the loading platform is provided between a cable chain fixed connection bracket (2) and a cable chain movable connection bracket (4), the cable chain fixed connection bracket (2) is a steel L-shaped connecting plate, a pair of left-side screw holes (2-1) and a pair of right-side screw holes (2-2) are respectively provided on the horizontal plate at the lower end of the L-shaped connecting plate, a cable chain end (5) is provided at the end of the cable chain (6), and a left-side U-shaped frame () is respectively provided on the cable chain end (5). 5-1) and the right-side U-shaped frame (5-2), a pair of left frame top connecting screw holes (5-1-2) are provided at the top of the left U-shaped frame (5-1), and a pair of right frame top connecting screw holes (5-2-2) are provided at the top of the right U-shaped frame (5-2). The left-side screw holes (2-1) of the pair of connecting plates are correspondingly provided with the pair of left frame top connecting screw holes (5-1-2), and the right-side screw holes (2-2) of the pair of connecting plates are correspondingly provided with the pair of right frame top connecting screw holes (5-2-2); characterized in that Includes the following steps: Step 1: Set a pair of left frame side frame connecting screw holes (5-1-1) on the front and rear frames of the left square frame (5-1), and set a pair of right frame side frame connecting screw holes (5-2-1) on the front and rear frames of the right square frame (5-2). Step 2: A pair of left box top bolt through holes (8-1-2) are set on the top plate of the left box (8-1), and a pair of left box side plate bolt through holes (8-1-1) are set on the front and rear upright plates of the left box (8-1); a pair of right box top bolt through holes (8-2-2) are set on the top plate of the right box (8-2), and a pair of right box side plate bolt through holes (8-2-1) are set on the front and rear upright plates of the right box (8-2); a connecting steel plate (8) is fixedly connected between the rear upright plate of the left box (8-1) and the rear upright plate of the right box (8-2). Step 3: The left square frame (5-1) is embedded into the steel left box (8-1), and the right square frame (5-2) is embedded into the steel right box (8-2). Step 4: A transverse connecting bolt (9) is provided between the connecting screw holes (5-1-1) on a pair of left frame side frames and the bolt through holes (8-1-1) on a pair of left box side plates. Another transverse connecting bolt is provided between the connecting screw holes (5-2-1) on a pair of right frame side frames and the bolt through holes (8-2-1) on a pair of right box side plates. A longitudinal connecting bolt (10) is provided between the left screw holes (2-1) on a pair of connecting plates, the bolt through holes (8-1-2) on the top of a pair of left boxes, and the connecting screw holes (5-1-2) on the top of a pair of left frames. Another longitudinal connecting bolt is provided between the right screw holes (2-2) on a pair of connecting plates, the bolt through holes (8-2-2) on the top of a pair of right boxes, and the connecting screw holes (5-2-2) on the top of a pair of right frames.

2. The method for reinforcing the drag joint of a stacker crane in a cold storage facility according to claim 1, characterized in that, The structure of the drag chain moving connection bracket (4) is exactly the same as that of the drag chain fixed connection bracket (2); another integral frame covering the drag chain end is provided at the drag chain end connected to the drag chain moving connection bracket (4), and the structure of the other integral frame is exactly the same as that of the integral frame covering the drag chain end (5).

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