Online Fast Replacement Method for the Traveling Wheel Set of the Lane Stacker

Abstract

The present invention discloses an online rapid replacement method for the traveling wheel set of an aisle stacker. Only two persons are required, and the traveling wheel set of the stacker can be rapidly replaced safely and reliably by using a wrench. On the left part of the lower body frame (2) of the stacker, left and right self-lifting mechanisms are provided. The rear side elevation of the two rectangular tube connecting steel plates (11) in the left self-lifting mechanism (9) is fixedly welded between the front and rear rectangular tubes. At the center of the two rectangular tube connecting steel plates, a screw thread through hole (12) is provided and a jacking screw (13) is screwed therein. Right below the jacking screw, a jacking support block (14) is movably arranged. The round head (23) at the lower end of the jacking screw is movably arranged in the screw round head embedding groove (16). The jacking support block (14) is abutted against the stacker ground rail (1) through the I-beam rail embedding groove (15). The structure of the present invention is simple, practical and reliable, and reduces the difficulty of replacing the traveling wheel set.

Description

Technical Field

[0001] The present invention relates to a roadway stacker, and particularly to an on-line jacking mechanism for replacing the traveling wheel set of a roadway stacker and a quick replacement method therefor. Background Art

[0002] In an automated logistics warehouse, a roadway stacker is a key device of an automated stereoscopic warehouse. The roadway stacker moves linearly along the roadway direction between the overhead rail and the ground rail in the roadway. The load platform on the roadway stacker moves up and down along the column direction of the roadway stacker. The fork on the load platform extends and retracts in a direction perpendicular to the roadway to realize the storage and retrieval of goods. The entire weight of the stacker and the cargo unit is borne by two traveling wheels. The stacker travels between the overhead rail and the ground rail and is guided by 4 side guide wheels at the overhead rail and 4 side guide wheels at the ground rail. The presence of the side guide wheels at the overhead rail and the ground rail can ensure that the stacker does not derail. The traveling wheels of the roadway stacker bear the entire weight and run at high speed, making the traveling wheels and the internal bearings vulnerable parts. After wear, they need to be replaced in time. The height of the roadway stacker is usually about 20 meters and the weight is about 10 tons. It is installed in the shelf roadway. In this environment, lifting equipment such as a crane cannot enter the shelf roadway. When the traveling wheels need to be replaced, only manual labor can be relied on, and manual hoists, jacks, and auxiliary tooling are used to replace them. The replacement is very difficult, and the requirements for the maintenance workers' skills are very high. Improper operation can easily lead to accidents such as derailment of the stacker.

[0003] The present invention provides an on-line quick replacement method for the traveling wheel set of a roadway stacker, which only requires two people and can safely and reliably quickly replace the traveling wheel set of the stacker using a wrench.

[0004] The present invention solves the above technical problems through the following technical solutions:

[0005] An on-line jacking mechanism for replacing the traveling wheel set of an aisle stacker, comprising a stacker ground rail and a lower frame of the stacker. At the left end of the lower frame of the stacker, a driven traveling wheel and a left guide wheel pair are provided. At the right end of the lower frame of the stacker, a driving traveling wheel and a right guide wheel pair are provided. The driving traveling wheel and the driven traveling wheel are both arranged on the stacker ground rail. The lower frame of the stacker is composed of a rear rectangular tube, a front rectangular tube, a left column connecting bottom plate and a right column connecting bottom plate. At the left part of the lower frame of the stacker, a left self-jacking mechanism is provided. At the right part of the lower frame of the stacker, a right self-jacking mechanism is provided. The structure of the left self-jacking mechanism is exactly the same as that of the right self-jacking mechanism. The rear vertical surface of the two rectangular tube connecting steel plates in the left self-jacking mechanism is fixedly welded to the front vertical surface of the rear rectangular tube. The front vertical surface of the two rectangular tube connecting steel plates is fixedly welded to the rear vertical surface of the front rectangular tube. At the center of the two rectangular tube connecting steel plates, a screw-threading through hole is provided. In the screw-threading through hole, a jacking screw is screwed along the vertical up and down direction. Directly below the jacking screw, a jacking support block is movably arranged. On the top surface of the jacking support block, a screw round head embedding groove is provided. The round head at the lower end of the jacking screw is movably arranged in the screw round head embedding groove. On the bottom surface of the jacking support block, an I-beam track embedding groove is provided. The jacking support block abuts against the stacker ground rail through the I-beam track embedding groove.

[0006] On the top surface of the jacking support block behind the screw round head embedding groove, a rear limiting plate is provided. On the front vertical surface of the rear limiting plate, a front semi-circular arc notch is provided. The rear limiting plate is fixedly connected to the top surface of the jacking support block through a rear screw. On the top surface of the jacking support block in front of the screw round head embedding groove, a front limiting plate is provided. On the rear vertical surface of the front limiting plate, a rear semi-circular arc notch is provided. The front limiting plate is fixedly connected to the top surface of the jacking support block through a front screw. After the front semi-circular arc notch and the rear semi-circular arc notch are spliced, a through hole for the jacking screw to pass through is formed. The rear limiting plate and the front limiting plate form a limit for the round head at the lower end of the jacking screw to be movably arranged in the screw round head embedding groove. A square head for cooperating with a wrench is provided at the upper end of the jacking screw.

[0007] An on-line rapid replacement method for the traveling wheel set of an aisle stacker, comprising a stacker ground rail and a lower frame of the stacker. At the left end of the lower frame of the stacker, a driven traveling wheel and a left guide wheel pair are provided. At the right end of the lower frame of the stacker, a driving traveling wheel and a right guide wheel pair are provided. The driving traveling wheel and the driven traveling wheel are both arranged on the stacker ground rail. The lower frame of the stacker is composed of a rear rectangular tube, a front rectangular tube, a left column connecting bottom plate and a right column connecting bottom plate. It is characterized by the following steps:

[0008] Step 1: Install a left self-lifting mechanism on the left part of the lower body frame of the stacker crane, and install a right self-lifting mechanism on the right part of the lower body frame of the stacker crane. The structures of the left self-lifting mechanism and the right self-lifting mechanism are exactly the same. The specific steps are as follows: Weld two rectangular pipe connecting steel plates between the rear rectangular pipe and the front rectangular pipe, and set a screw-threading through hole in the center of the two rectangular pipe connecting steel plates; Set a jacking support block directly below the two rectangular pipe connecting steel plates. On the top end surface of the jacking support block, set a screw round head embedding groove, and on the bottom surface of the jacking support block, set an I-beam track embedding groove;

[0009] Step 2: Take a jacking screw, set a round head at the lower end of the jacking screw, and set a square head that matches a wrench at the upper end of the jacking screw; Move the round head at the lower end of the jacking screw into the screw round head embedding groove, and screw the upper end of the jacking screw into the screw-threading through hole;

[0010] Step 3: Rotate the square head through a wrench to make the jacking screw drive the jacking support block to abut against the ground rail of the stacker crane;

[0011] Step 4: Rotate the jacking screws in the left self-lifting mechanism and the jacking screws in the right self-lifting mechanism simultaneously to raise the lower body frame of the stacker crane. When the driving wheels and the driven wheels are both separated from the ground rail of the stacker crane, stop rotating the two jacking screws. At this time, the lower body frame of the stacker crane is supported on the ground rail of the stacker crane by the two jacking screws and the jacking support blocks;

[0012] Step 5: Repair and replace the driven wheels, the left guide wheel pair, the driving wheels, and the right guide wheel pair.

[0013] The structure of the present invention is simple, practical and reliable, reduces the difficulty of replacing the walking wheel set, and ensures the safety of the equipment and personnel when replacing the walking wheel set, which is of great significance for the after-sales maintenance of the aisle stacker crane. Description of the Drawings

[0014] Figure 1 is the schematic structural diagram of the main view direction of the present invention;

[0015] Figure 2 is the schematic structural diagram of the side view direction of the present invention;

[0016] Figure 3 is the schematic structural diagram of the top view direction of the present invention;

[0017] Figure 4 is Figure 1 the partial enlarged view at A in;

[0018] Figure 5 is Figure 1 the partial enlarged cross-sectional view at B-B in.

[0019] Figure 6 is Figure 3 the partial enlarged view at position C in Specific embodiments

[0020] The present invention will be described in detail below with reference to the accompanying drawings:

[0021] An on-line jacking mechanism for replacing the traveling wheel set of an aisle stacker, comprising a stacker ground rail 1 and a stacker lower body frame 2. At the left end of the stacker lower body frame 2, a driven traveling wheel 4 and a left guide wheel pair 26 are provided. At the right end of the stacker lower body frame 2, a driving traveling wheel 3 and a right guide wheel pair 25 are provided. The driving traveling wheel 3 and the driven traveling wheel 4 are both arranged on the stacker ground rail 1. The stacker lower body frame 2 is composed of a rear rectangular tube 6, a front rectangular tube 5, a left column connecting bottom plate 7 and a right column connecting bottom plate 8. In the left part of the stacker lower body frame 2, a left self-jacking mechanism 9 is provided. In the right part of the stacker lower body frame 2, a right self-jacking mechanism 10 is provided. The structure of the left self-jacking mechanism 9 is exactly the same as that of the right self-jacking mechanism 10. The rear vertical surface of the two rectangular tube connecting steel plates 11 in the left self-jacking mechanism 9 is fixedly welded to the front vertical surface of the rear rectangular tube 6, and the front vertical surface of the two rectangular tube connecting steel plates 11 is fixedly welded to the rear vertical surface of the front rectangular tube 5. At the center of the two rectangular tube connecting steel plates 11, a screw-threading through hole 12 is provided. In the screw-threading through hole 12, a jacking screw 13 is screwed along the vertical up-and-down direction. Directly below the jacking screw 13, a jacking support block 14 is movably arranged. On the top surface of the jacking support block 14, a screw round head embedding groove 16 is provided. The round head 23 at the lower end of the jacking screw 13 is movably arranged in the screw round head embedding groove 16. On the bottom surface of the jacking support block 14, an I-beam rail embedding groove 15 is provided. The jacking support block 14 abuts against the stacker ground rail 1 through the I-beam rail embedding groove 15.

[0022] On the top surface of the jacking support block 14 behind the groove 16 where the round head of the screw is embedded, a rear limit plate 17 is provided. On the front vertical surface of the rear limit plate 17, a front semi-circular notch 19 is provided. The rear limit plate 17 is fixedly connected to the top surface of the jacking support block 14 through a rear screw 21. On the top surface of the jacking support block 14 in front of the groove 16 where the round head of the screw is embedded, a front limit plate 18 is provided. On the rear vertical surface of the front limit plate 18, a rear semi-circular notch 20 is provided. The front limit plate 18 is fixedly connected to the top surface of the jacking support block 14 through a front screw 22. After the front semi-circular notch 19 and the rear semi-circular notch 20 are spliced, a through hole for the jacking screw 13 to pass through is formed. The rear limit plate 17 and the front limit plate 18 form a limit for the round head 23 at the lower end of the jacking screw 13 to be movably arranged in the groove 16 where the round head of the screw is embedded. A square head 24 for cooperating with a wrench is provided at the upper end of the jacking screw 13.

[0023] An on-line rapid replacement method for the traveling wheel set of an aisle stacker, including the stacker ground rail 1 and the lower frame of the stacker 2. At the left end of the lower frame of the stacker 2, a driven traveling wheel 4 and a left guide wheel pair 26 are provided. At the right end of the lower frame of the stacker 2, a driving traveling wheel 3 and a right guide wheel pair 25 are provided. The driving traveling wheel 3 and the driven traveling wheel 4 are both arranged on the stacker ground rail 1. The lower frame of the stacker 2 is composed of a rear rectangular tube 6, a front rectangular tube 5, a left column connecting bottom plate 7, and a right column connecting bottom plate 8. It is characterized by the following steps:

[0024] The first step: At the left part of the lower frame of the stacker 2, a left self-jacking mechanism 9 is provided. At the right part of the lower frame of the stacker 2, a right self-jacking mechanism 10 is provided. The structure of the left self-jacking mechanism 9 is exactly the same as that of the right self-jacking mechanism 10. The specific steps are as follows: Two rectangular tube connecting steel plates 11 are welded between the rear rectangular tube 6 and the front rectangular tube 5. A screw-threading through hole 12 is provided at the center of the two rectangular tube connecting steel plates 11. A jacking support block 14 is provided directly below the two rectangular tube connecting steel plates 11. On the top surface of the jacking support block 14, a groove 16 for embedding the round head of the screw is provided. On the bottom surface of the jacking support block 14, a groove 15 for embedding the I-beam track is provided.

[0025] The second step: Take a jacking screw 13. A round head 23 is provided at the lower end of the jacking screw 13, and a square head 24 for cooperating with a wrench is provided at the upper end of the jacking screw 13. The round head 23 at the lower end of the jacking screw 13 is movably arranged in the groove 16 for embedding the round head of the screw, and the upper end of the jacking screw 13 is screwed into the screw-threading through hole 12.

[0026] The third step: Rotate the square head 24 through a wrench to make the jacking screw 13 drive the jacking support block 14 to abut against the stacker ground rail 1.

[0027] Step 4: Rotate the jacking screw 13 in the left self-jacking mechanism 9 and the jacking screw in the right self-jacking mechanism 10 simultaneously to raise the lower body frame 2 of the stacker. When the driving wheels 3 and the driven wheels 4 are disengaged from the stacker rail 1 at the same time, stop rotating the two jacking screws. At this time, the lower body frame 2 of the stacker is supported on the stacker rail 1 by the two jacking screws and the jacking support blocks;

[0028] Step 5: Repair and replace the driven wheels 4, the left guide wheel pair 26, the driving wheels 3 and the right guide wheel pair 25.

Claims

1. An online rapid replacement method for the traveling wheel set of an aisle-type stacker, including the stacker ground rail (1) and the lower body frame (2) of the stacker. At the left end of the lower body frame (2) of the stacker, a driven traveling wheel (4) and a left guide wheel pair (26) are provided. At the right end of the lower body frame (2) of the stacker, a driving traveling wheel (3) and a right guide wheel pair (25) are provided. The driving traveling wheel (3) and the driven traveling wheel (4) are both arranged on the stacker ground rail (1); the lower body frame (2) of the stacker is composed of a rear rectangular tube (6), a front rectangular tube (5), a left column connecting bottom plate (7), and a right column connecting bottom plate (8); characterized in that The following steps: First step: Set a left self-lifting mechanism (9) on the left part of the lower body frame (2) of the stacker crane, and set a right self-lifting mechanism (10) on the right part of the lower body frame (2) of the stacker crane. The structures of the left self-lifting mechanism (9) and the right self-lifting mechanism (10) are exactly the same. The specific steps are as follows: Weld two rectangular pipe connecting steel plates (11) between the rear rectangular pipe (6) and the front rectangular pipe (5), and set a screw-threaded through hole (12) at the center of the two rectangular pipe connecting steel plates (11); Set a jacking support block (14) directly below the two rectangular pipe connecting steel plates (11). On the top end face of the jacking support block (14), set a screw round head embedded in the second groove (16). On the bottom end face of the jacking support block (14), set an I-beam rail embedded in the first groove (15); Second step: Take a jacking screw (13). Set a round head (23) at the lower end of the jacking screw (13), and set a square head (24) cooperating with a wrench at the upper end of the jacking screw (13); Actively set the round head (23) at the lower end of the jacking screw (13) in the screw round head embedded in the second groove (16), and screw the upper end of the jacking screw (13) into the screw-threaded through hole (12); Third step: Rotate the square head (24) through a wrench to make the jacking screw (13) drive the jacking support block (14) to abut against the ground rail (1) of the stacker crane; Fourth step: Rotate the jacking screw (13) in the left self-lifting mechanism (9) and the jacking screw in the right self-lifting mechanism (10) simultaneously to raise the lower body frame (2) of the stacker crane. When the driving walking wheels (3) and the driven walking wheels (4) are simultaneously separated from the ground rail (1) of the stacker crane, stop rotating the two jacking screws. At this time, the lower body frame (2) of the stacker crane is supported on the ground rail (1) of the stacker crane through the two jacking screws and the jacking support block; Fifth step: Repair and replace the driven walking wheels (4), the left guide wheel pair (26), the driving walking wheels (3) and the right guide wheel pair (25).

2. The online rapid replacement method of a traveling wheel set of a roadway stacker according to claim 1, characterized in that, On the top end face of the jacking support block (14) behind the screw round head embedded in the second groove (16), set a rear limit plate (17). On the front vertical face of the rear limit plate (17), set a front semi-circular arc notch (19). The rear limit plate (17) is fixedly connected to the top end face of the jacking support block (14) through a rear screw (21); On the top end face of the jacking support block (14) in front of the screw round head embedded in the second groove (16), set a front limit plate (18). On the rear vertical face of the front limit plate (18), set a rear semi-circular arc notch (20). The front limit plate (18) is fixedly connected to the top end face of the jacking support block (14) through a front screw (22); After the front semi-circular arc notch (19) and the rear semi-circular arc notch (20) are spliced, a through hole through which the jacking screw (13) passes is formed. The rear limit plate (17) and the front limit plate (18) form a limit for the round head (23) at the lower end of the jacking screw (13) to be actively set in the screw round head embedded in the second groove (16).

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