Stacker wheel box guide wheel structure

Abstract

The present application relates to the technical fields of stacker wheel box guide wheel, and discloses a kind of stacker wheel box guide wheel structures, including wheel box main body, drive motor, hydraulic pump and controller, the inside movable mounting of wheel box main body has driving wheel, the drive motor is fixedly connected with wheel box main body. By installing the setting of waist groove and slot, so that in the long time use process, if guide roller loosens, at this time by adjusting screw, guide wheel assembly mounting plate is moved to adjust the position of guide roller, and the side of track is again close to guide roller and close, and the stacker is again firmly clamped, avoid the stacker to sway, influence transportation;Simultaneously by the setting of pressure sensor, steel band and telescopic rod II, so that the clamping force of guide roller to track is automatically detected, when the clamping force is insufficient, automatically complete adjustment, so that guide roller is again close to track, and a certain pressure is applied, guarantee the stable operation of stacker.

Description

Technical Field

[0001] This invention relates to the field of stacker crane wheel box guide wheel technology, specifically a stacker crane wheel box guide wheel structure. Background Technology

[0002] The stacker crane in the automated warehouse utilizes automated logistics and warehousing equipment to achieve automated management of the warehouse storage. It enables timely and automatic replenishment of cylinder cores and empty pallets to the conveyor line, while simultaneously ensuring timely delivery of goods to the next workstation. Control is available in both manual and automatic modes, allowing for more flexible handling of any abnormalities that may occur during transport. The stacker crane is driven by a travel motor via a drive shaft, which propels the wheels horizontally along the lower guide rails. However, the stacker crane has some shortcomings during movement, as follows:

[0003] Currently, to ensure the stacker crane runs along the guide rail, guide wheels are symmetrically installed on both sides of the guide rail. The guide wheels need to clamp the guide rail. Due to processing and installation errors, the existing stacker crane wheel boxes directly use two guide wheels mounted on an eccentric shaft and fixed to the wheel box body to ensure that the two guide wheels can clamp the guide rail. However, after long-term operation, the eccentric shaft will rotate, causing the guide wheels to lose their clamping position, resulting in the stacker crane shaking. Furthermore, once the guide wheels loosen, they are difficult to adjust and need to be replaced. At the same time, when the stacker crane moves by extending and retracting the forks on the loading platform, the forks pull the goods out, causing the stacker crane's center of gravity to shift, which in turn causes the stacker crane to deviate to one side and puts pressure on the guide rollers, increasing the pressure on one side of the guide rollers. This not only easily causes the guide rollers to deform under pressure, but also increases the wear between the guide rollers and the guide rails during operation. Summary of the Invention

[0004] This invention provides a stacker crane wheel box guide wheel structure, which has the advantages of good stability and long service life, and solves the problems in the background art mentioned above.

[0005] This invention provides the following technical solution: a stacker crane wheel box guide wheel structure, comprising a wheel box body, a drive motor, a hydraulic pump, and a controller. A drive wheel is movably mounted inside the wheel box body. The drive motor is fixedly connected to the wheel box body, and its output shaft is fixedly connected to the drive wheel. The drive wheel is movably mounted on a track. A guide wheel assembly connecting plate is fixedly welded to the right side of the wheel box body. The front of the guide wheel assembly connecting plate has evenly spaced mounting grooves. A guide wheel assembly mounting plate is movably mounted on the left side of the guide wheel assembly connecting plate. The front of the guide wheel assembly mounting plate has evenly spaced mounting grooves. The guide wheel assembly connecting plate and the guide wheel assembly mounting plate are fastened together by mounting screws between the mounting groove and the mounting screw hole. The guide wheel assembly connecting plate has symmetrical slots on both sides, and the guide wheel assembly mounting plate is movably engaged with the slots. The guide wheel assembly mounting plate is symmetrically fitted with a rotating shaft, and a guide roller is movably fitted on the rotating shaft and below the guide wheel assembly mounting plate. A nut is threaded onto the bottom end of the rotating shaft. Adjusting screw holes are opened at both ends of the guide wheel assembly mounting plate and in the slots, and adjusting screws are threaded into the adjusting screw holes. The guide roller is movably connected to the side of the track.

[0006] Preferably, the rotating shaft has an oil filling groove hole inside, and a threaded hole is opened at the bottom of the rotating shaft. The threaded hole communicates with the oil filling groove hole, and an oil cup is threadedly connected to the threaded hole at the bottom of the rotating shaft.

[0007] Preferably, the guide wheel assembly mounting plate has symmetrically formed movable slots, and the rotating shaft is movably sleeved with the movable slots. A telescopic rod I is symmetrically fixedly installed on the upper surface of the guide wheel assembly mounting plate between the two rotating shafts. A pressure sensor is fixedly connected to the extended end of the telescopic rod I. The pressure sensor is located in the movable slot and fixedly connected to the rotating shaft. A transmission box is fixedly installed on the upper surface of the telescopic rod I. A through hole communicating with the inner cavity of the transmission box is formed on the telescopic rod I. A piston plate is movably sleeved inside the transmission box. An oil guide pipe is fixedly connected to the top of the transmission box. The top end of the oil guide pipe is movably connected to the hydraulic pump through a conduit.

[0008] Preferably, a semi-circular ring limiting member is fixedly sleeved at the top of the rotating shaft and above the guide wheel assembly mounting plate. A steel strip is movably wound on the semi-circular ring limiting member. One end of the steel strip is fixedly connected to the guide wheel assembly mounting plate. A telescopic rod II is fixedly installed on the upper surface of the guide wheel assembly mounting plate. The other end of the steel strip is fixedly connected to the protruding end of the telescopic rod II. A guide roller is movably installed on the upper surface of the guide wheel assembly mounting plate. The steel strip is movably wound on the guide roller. The inner cavity of the telescopic rod II is connected to a hydraulic pump through a conduit.

[0009] Preferably, the bottom center of the guide wheel assembly connecting plate is movably connected to the track, the guide wheel assembly connecting plate has an internal movable cavity, and a support member is symmetrically and movably sleeved on the bottom of the guide wheel assembly connecting plate and located in the movable cavity. Steel balls are evenly and movably installed inside the support member on the side near the track. An oil inlet pipe is fixedly connected to the side of the guide wheel assembly connecting plate. One end of the oil inlet pipe is connected to a hydraulic pump, and the other end of the oil inlet pipe is connected to the inner cavity of the guide wheel assembly connecting plate.

[0010] The present invention has the following beneficial effects:

[0011] 1. By installing waist grooves and slots, if the guide rollers become loose during long-term use, adjusting screws will move the guide roller assembly mounting plate to adjust the position of the guide rollers, pushing them closer to the side of the track and tightening them again, thus firmly clamping the stacker crane and preventing it from shaking and affecting transportation. At the same time, the installation of pressure sensors, steel belts, and telescopic rod II allows for automatic detection of the clamping force of the guide rollers on the track. When the clamping force is insufficient, it will automatically adjust, causing the guide rollers to move closer to the track again and apply a certain amount of pressure to ensure the stable operation of the stacker crane.

[0012] 2. By using pressure sensors and support components, when the stacker crane's forks extend with the cargo, causing the stacker crane's center of gravity to shift to one side, the guide roller on the deviated side presses heavily against the track. This causes a rapid increase in the pressure sensor reading on the connected shaft. At this point, the pressure sensor sends vertical feedback to the controller, which then controls the hydraulic pump to supply oil and pressurize the guide wheel assembly connecting plate. This pushes the support component on the same side closer to the track, thereby providing support to the track and reducing the pressure between the track and the guide roller. This prevents the guide roller from being subjected to excessive pressure for a prolonged period, which could cause the shaft to bend and reduce the clamping force on the track, resulting in the stacker crane swaying during operation. Simultaneously, it prevents excessive tilting, which could cause the stacker crane to tip over and lead to an accident. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0014] Figure 2 This is a partial cross-sectional view of the structure of the present invention.

[0015] Figure 3 This is an overall schematic diagram of the installation embodiment of the guide wheel assembly connecting plate and the guide wheel assembly mounting plate of the present invention;

[0016] Figure 4 This is a schematic diagram of the overall structure of the guide wheel assembly mounting plate according to Embodiment 1 of the present invention;

[0017] Figure 5This is a side view of the mounting plate of the guide wheel assembly of the present invention;

[0018] Figure 6 This is a schematic diagram of the rotating shaft of the present invention;

[0019] Figure 7 This is a half-sectional schematic diagram of the rotating shaft of the present invention;

[0020] Figure 8 This is a front view of the overall structure of the guide wheel assembly connecting plate and guide wheel assembly mounting plate according to Embodiment 2 of the present invention.

[0021] Figure 9 This is a rear view schematic diagram of the overall installation embodiment 2 of the guide wheel assembly connecting plate and guide wheel assembly mounting plate of the present invention;

[0022] Figure 10 This is a top view schematic diagram of the second embodiment of the installation of the guide wheel assembly connecting plate and the guide wheel assembly mounting plate of the present invention;

[0023] Figure 11 This is a front half-sectional view of the connecting plate of the guide wheel assembly of the present invention;

[0024] Figure 12 This is a front half-sectional view of the mounting plate of the guide wheel assembly of the present invention;

[0025] Figure 13 The structure of this invention Figure 10 Schematic diagram at point AA.

[0026] In the diagram: 1. Wheel box body; 2. Guide wheel assembly connecting plate; 3. Guide wheel assembly mounting plate; 4. Track; 5. Drive wheel; 6. Drive motor; 7. Mounting groove; 8. Slot; 9. Shaft; 10. Guide roller; 11. Nut; 12. Mounting screw hole; 13. Adjusting screw hole; 14. Oil injection groove hole; 15. Telescopic rod I; 16. Pressure sensor; 17. Transmission box; 18. Oil guide pipe; 19. Semi-circular ring limiting component; 20. Steel belt; 21. Telescopic rod II; 22. Support component; 23. Steel ball; 24. Oil inlet pipe; 25. Guide roller. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1

[0028] Please see Figures 1-7A stacker crane wheel box guide wheel structure includes a wheel box body 1, a drive motor 6, a hydraulic pump, and a controller. A drive wheel 5 is movably installed inside the wheel box body 1. The drive motor 6 is fixedly connected to the wheel box body 1, and its output shaft is fixedly connected to the drive wheel 5. The drive wheel 5 is movably mounted on a track 4. A guide wheel assembly connecting plate 2 is fixedly welded to the right side of the wheel box body 1. The front of the guide wheel assembly connecting plate 2 has evenly spaced mounting grooves 7. A guide wheel assembly mounting plate 3 is movably installed on the left side of the guide wheel assembly connecting plate 2. The front of the component mounting plate 3 is evenly provided with mounting screw holes 12. The guide wheel assembly connecting plate 2 and the guide wheel assembly mounting plate 3 are fastened together by mounting screws between the mounting groove 7 and the mounting screw holes 12. The guide wheel assembly connecting plate 2 has symmetrical slots 8 on both sides, and the guide wheel assembly mounting plate 3 is movably engaged with the slots 8. The guide wheel assembly mounting plate 3 is symmetrically and movably sleeved with a rotating shaft 9. A guide roller 10 is movably sleeved on the rotating shaft 9 and located below the guide wheel assembly mounting plate 3. A nut 11 is threaded onto the bottom end of the rotating shaft 9. The guide wheel assembly mounting plate 3... Adjustment screw holes 13 are provided at both ends of the guide roller 10 and located in the slot 8. Adjustment screws are threaded into the adjustment screw holes 13. The guide roller 10 is movably connected to the side of the track 4. The drive wheel 5 is placed on the track 4, and the drive motor 6 drives the drive wheel 5 to rotate. The two symmetrically installed guide rollers 10 clamp the side of the track 4, limiting and supporting the stacker crane. In the later long-term use, if the guide roller 10 becomes loose, the adjustment screws can be used to move the guide roller assembly mounting plate 3 to adjust the guide roller 10. The position is adjusted so that the guide roller 10 and the side of the track 4 are pressed together again, and the stacker is firmly clamped to prevent the stacker from shaking and affecting transportation. The inside of the rotating shaft 9 is provided with an oil injection groove hole 14, and the bottom of the rotating shaft 9 is provided with a threaded hole that is connected to the oil injection groove hole 14. An oil cup is threaded into the bottom threaded hole of the rotating shaft 9. During operation, lubricating oil is injected between the rotating shaft 9 and the guide roller 10 through the oil cup, thereby reducing friction between the rotating shaft 9 and the guide roller 10 and reducing wear during the movement of the stacker. Example 2

[0029] Please see Figures 8-13The guide wheel assembly mounting plate 3 has symmetrical movable slots. The rotating shaft 9 is movably sleeved in the movable slot. A telescopic rod I 15 is symmetrically fixedly installed on the upper surface of the guide wheel assembly mounting plate 3 between the two rotating shafts 9. A pressure sensor 16 is fixedly connected to the extended end of the telescopic rod I 15. The pressure sensor 16 is located in the movable slot and fixedly connected to the rotating shaft 9. A transmission box 17 is fixedly installed on the upper surface of the telescopic rod I 15. A through hole is opened on the telescopic rod I 15 that communicates with the inner cavity of the transmission box 17. A piston plate is movably sleeved inside the transmission box 17. An oil guide pipe 18 is fixedly connected to the top of the transmission box 17. The top end of the oil guide pipe 18 is connected to... The hydraulic pump is connected to the conduit. First, the pressure sensor 16 is pressed by the telescopic rod I15, and a certain pressure is provided. Then, the guide roller 10 contacts the track 4 and provides a certain push. During use, the pressure sensor 16 detects the contact force between the guide rollers 10 on both sides and the track 4. When the stacker is moving, if the contact force between the guide roller 10 on one side and the track 4 is too large, the position of the guide roller 10 is adjusted by adjusting the screw, so that the contact force between the guide rollers 10 on both sides and the track 4 is equal. This achieves stable operation of the stacker and avoids excessive pressure on one side of the guide roller 10, which would increase wear.A semi-circular ring limiting member 19 is fixedly sleeved at the top of the rotating shaft 9 and above the guide wheel assembly mounting plate 3. A steel strip 20 is movably wound around the semi-circular ring limiting member 19. One end of the steel strip 20 is fixedly connected to the guide wheel assembly mounting plate 3. A telescopic rod II 21 is fixedly installed on the upper surface of the guide wheel assembly mounting plate 3. The other end of the steel strip 20 is fixedly connected to the extended end of the telescopic rod II 21. A guide roller 25 is movably installed on the upper surface of the guide wheel assembly mounting plate 3. The steel strip 20 is movably wound around the guide roller 25. The inner cavity of the telescopic rod II 21 is connected to a hydraulic pump through a conduit. The steel strip 20 pulls the two rotating shafts 9 inward, forming a cooperation with the support of the telescopic rod I 15, and creating a certain compressive force on the rotating shafts 9. At the same time, it ensures that the rotating shafts 9 carrying the guide roller 10 have a certain compressive force on the track 4, thereby preventing the stacker crane from tilting and shaking during the movement of the stacker crane. During this process, the steel strip 20 tightens the two rotating shafts 9 inward, providing a certain tension. The guide roller 10 is subjected to a force, while the track 4 and the telescopic rod I 15 provide an outward pushing force to the rotating shaft 9. The clamping force formed by the pulling force and the pushing force acts on the pressure sensor 16, so that the force on the pressure sensor 16 is kept within a certain range. During long-term use, the guide roller 10 is worn and its diameter decreases. At this time, the clamping force of the guide roller 10 on the track 4 decreases, causing the value of the pressure sensor 16 to change. At this time, the hydraulic pump is started, causing the extended ends of the telescopic rod I 15 and the telescopic rod II 21 to retract respectively, so that the steel belt 20 tightens the two rotating shafts 9 and moves them closer to the center until the guide roller 10 re-contacts the track 4 and applies pressure, completing the clamping process again. The pressure on the pressure sensor 16 returns to the set value, thus enabling the guide roller 10 to continuously clamp the track 4 during the operation of the stacker crane, improving the operation stability of the stacker crane, increasing the service life of the guide roller 10, and reducing maintenance costs.The bottom center of the guide wheel assembly connecting plate 2 is movably connected to the track 4. A movable cavity is provided inside the guide wheel assembly connecting plate 2. Support members 22 are symmetrically and movably fitted onto the bottom of the guide wheel assembly connecting plate 2 within the movable cavity. Steel balls 23 are evenly and movably installed inside the support members 22 on the side closest to the track 4. An oil inlet pipe 24 is fixedly connected to the side of the guide wheel assembly connecting plate 2. One end of the oil inlet pipe 24 is connected to a hydraulic pump, and the other end is connected to the inner cavity of the guide wheel assembly connecting plate 2. When the stacker crane forks extend carrying goods, causing the stacker crane's center of gravity to deviate and shift to one side, the guide roller 10 on the deviated side presses heavily against the track 4, causing pressure to be transmitted through the pressure sensor on the connected rotating shaft 9. If the pressure sensor 16 increases rapidly, it will send a vertical feedback signal to the controller. The controller will then control the hydraulic pump to supply oil and pressurize the guide wheel assembly connecting plate 2, pushing the support member 22 on the same side closer to the track 4. This support member 22 will then support the track 4, reducing the pressure between the track 4 and the guide roller 10. This prevents the guide roller 10 from being subjected to excessive pressure for an extended period, which could cause the shaft 9 to bend and reduce the clamping force on the track 4, leading to swaying of the stacker crane during operation. Simultaneously, it prevents excessive tilting, which could cause the stacker crane to tip over and cause an accident. Meanwhile, the steel balls 23 reduce the friction between the support member 22 and the track 4, thus reducing wear during the stacker crane's movement.

[0030] Working principle: During installation, the guide wheel assembly connecting plate 2 is first installed on the side of the wheel box body 1 by welding or screw fastening. Then, the two ends of the guide wheel assembly mounting plate 3 are movably engaged with the slot 8. Then, the mounting groove 7 is connected to the mounting screw hole 12 by screws, and then the guide wheel assembly mounting plate 3 is fastened to the guide wheel assembly connecting plate 2. Then, the rotating shaft 9 is movably installed in the movable groove of the guide wheel assembly mounting plate 3, and the guide roller 10 is movably sleeved on the rotating shaft 9 by the nut 11. Then, the steel strip 20 passes through the inside of the semi-circular ring limiting member 19 and finally connects to the protruding end of the telescopic rod II 21. The inner cavity of the guide wheel assembly connecting plate 2, the inner cavity of the transmission box 17 and the inner cavity of the telescopic rod II 21 are connected by conduits. The pressure sensor 16 is connected to the controller by wires.

[0031] If the guide roller 10 becomes loose during long-term operation, the guide roller assembly mounting plate 3 can be moved by adjusting the screws to adjust the position of the guide roller 10, thereby making the guide roller 10 close to the side of the track 4 again and firmly clamping the stacker. Alternatively, if the guide roller 10 is worn and its diameter decreases during long-term use, the clamping force of the guide roller 10 on the track 4 will decrease, causing the value of the pressure sensor 16 to change. At this time, the hydraulic pump will be started, causing the extension ends of the telescopic rod I 15 and telescopic rod II 21 to retract, causing the steel belt 20 to tighten the two rotating shafts 9 and move them closer to the center until the guide roller 10 re-contacts the track 4 and applies pressure, completing the clamping process again, and the pressure sensor 16 will return to the set value.

[0032] When the stacker crane forks extend with the cargo, causing the stacker crane's center of gravity to deviate and shift to one side, the guide roller 10 on the deviated side presses heavily against the track 4. This causes the pressure sensor 16 on the shaft 9 connected to the track to increase rapidly. At this time, the pressure sensor 16 feeds back the change in verticality to the controller, which then controls the hydraulic pump to supply oil and pressurize the guide wheel assembly connecting plate 2. This pushes the support member 22 on the same side closer to the track 4, thereby providing support to the track 4 through the support member 22. This reduces the pressure between the track 4 and the guide roller 10, preventing the guide roller 10 from being subjected to excessive pressure for a long time.

Claims

1. A stacker crane wheel box guide wheel structure, comprising a wheel box body (1), a drive motor (6), a hydraulic pump, and a controller, wherein a drive wheel (5) is movably installed inside the wheel box body (1), the drive motor (6) is fixedly connected to the wheel box body (1), the output shaft of the drive motor (6) is fixedly connected to the drive wheel (5), and the drive wheel (5) is movably installed on a track (4), characterized in that: A guide wheel assembly connecting plate (2) is fixedly welded to the right side of the wheel box body (1). The front of the guide wheel assembly connecting plate (2) is evenly provided with mounting grooves (7). A guide wheel assembly mounting plate (3) is movably mounted on the left side of the guide wheel assembly connecting plate (2). Mounting screw holes (12) are evenly provided on the front of the guide wheel assembly mounting plate (3). The guide wheel assembly connecting plate (2) and the guide wheel assembly mounting plate (3) are fastened together by mounting screws between the mounting grooves (7) and the mounting screw holes (12). The two sides of the guide wheel assembly connecting plate (2) are symmetrically provided with slots (…). 8) The guide wheel assembly mounting plate (3) is movably engaged with the slot (8). The guide wheel assembly mounting plate (3) is symmetrically and movably sleeved with a rotating shaft (9). A guide roller (10) is movably sleeved on the rotating shaft (9) and located below the guide wheel assembly mounting plate (3). A nut (11) is threaded onto the bottom end of the rotating shaft (9). Adjustment screw holes (13) are opened at both ends of the guide wheel assembly mounting plate (3) and located in the slot (8). Adjustment screws are threaded into the adjustment screw holes (13). The guide roller (10) is movably connected to the side of the track (4). A semi-circular ring limiting member (19) is fixedly sleeved at the top of the rotating shaft (9) and above the guide wheel assembly mounting plate (3). A steel strip (20) is movably wound on the semi-circular ring limiting member (19). One end of the steel strip (20) is fixedly connected to the guide wheel assembly mounting plate (3). A telescopic rod II (21) is fixedly installed on the upper surface of the guide wheel assembly mounting plate (3). The other end of the steel strip (20) is fixedly connected to the extended end of the telescopic rod II (21). A guide roller (25) is movably installed on the upper surface of the guide wheel assembly mounting plate (3). The steel strip (20) is movably wound on the guide roller (25). The inner cavity of the telescopic rod II (21) is connected to the hydraulic pump through a conduit.

2. The stacker crane wheel box guide wheel structure according to claim 1, characterized in that: The rotating shaft (9) has an oil filling groove (14) inside, and a threaded hole is provided at the bottom of the rotating shaft (9). The threaded hole is connected to the oil filling groove (14), and an oil cup is threaded into the threaded hole at the bottom of the rotating shaft (9).

3. The stacker crane wheel box guide wheel structure according to claim 1, characterized in that: The guide wheel assembly mounting plate (3) is symmetrically provided with movable slots. The rotating shaft (9) is movably sleeved with the movable slots. The upper surface of the guide wheel assembly mounting plate (3) and located between the two rotating shafts (9) are symmetrically fixedly installed with telescopic rods I (15). The extended end of the telescopic rod I (15) is fixedly connected with a pressure sensor (16). The pressure sensor (16) is located in the movable slot and is fixedly connected with the rotating shaft (9). The upper surface of the telescopic rod I (15) is fixedly installed with a transmission box (17). The telescopic rod I (15) is provided with a through hole communicating with the inner cavity of the transmission box (17). The inside of the transmission box (17) is movably sleeved with a piston plate. The top of the transmission box (17) is fixedly connected with an oil guide pipe (18). The top end of the oil guide pipe (18) is movably connected to the hydraulic pump through a conduit.

4. The stacker crane wheel box guide wheel structure according to claim 1, characterized in that: The bottom center of the guide wheel assembly connecting plate (2) is movably connected to the track (4). The guide wheel assembly connecting plate (2) has an internal movable cavity. A support member (22) is symmetrically and movably sleeved on the bottom of the guide wheel assembly connecting plate (2) and in the movable cavity. Steel balls (23) are evenly and movably installed inside the support member (22) on the side near the track (4). An oil inlet pipe (24) is fixedly connected to the side of the guide wheel assembly connecting plate (2). One end of the oil inlet pipe (24) is connected to the hydraulic pump, and the other end of the oil inlet pipe (24) is connected to the inner cavity of the guide wheel assembly connecting plate (2).

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