Stacker loading platform self-adaptive lifting guide wheel set mechanism

Abstract

This application relates to the field of lifting and guiding technology for stacker crane loading platforms, and discloses an adaptive lifting guide wheel assembly mechanism for a stacker crane loading platform. The mechanism includes a mounting base, a first guide wheel assembly, a second guide wheel assembly, and a third guide wheel assembly. The first and second guide wheel assemblies are both mounted on the mounting base and rotatably engage with it. The first and second guide wheel assemblies clamp a lifting guide rail located near the loading platform and roll over it. The first guide wheel assembly contacts the side of the lifting guide rail closest to the stacker crane forks. The third guide wheel assembly is mounted on the mounting base and contacts the side of the lifting guide rail closest to the loading platform. This application effectively reduces the wear of the guide wheels during operation of the loading platform.

Description

Technical Field

[0001] This application relates to the field of lifting and guiding technology for cargo platforms, and in particular to an adaptive lifting guide wheel assembly mechanism for a stacker crane cargo platform. Background Technology

[0002] The heavy-duty double-column pallet stacker crane is an automated warehousing equipment designed specifically for carrying heavy goods (typically with a load capacity of 1-5 tons and above). It uses a double-column rigid frame to support the lifting and lowering of the loading platform and uses forks to move standard pallets, thereby accurately completing the storage and retrieval operations of high-bay racking in automated warehouses.

[0003] As a key lifting component of a stacker crane, the loading platform bears the important task of carrying goods and must complete a series of actions such as vertical lifting, fork extension and retraction, and posture adjustment. It is rigidly connected to the lower end of the lifting mechanism (such as wire rope or chain) to enable precise storage and retrieval operations between various storage locations in the automated warehouse.

[0004] Currently, most stacker cranes use a fixed vertical lifting guide wheel structure, which typically involves arranging rigid guide wheel assemblies on both sides of the loading platform and fitting them into the lifting guide rail. However, in actual installation, a fixed eccentric shaft is generally used to connect the guide wheels, and the gap between the guide wheels and the lifting guide rail is adjusted by threads. But this traditional method has several problems: first, the guide wheels are prone to loosening after adjustment; second, it cannot dynamically adapt to the deformation that may occur in the lifting guide rail during use; and third, when the forks extend, the eccentric load can cause one-sided compression of the guide wheels, thus accelerating wear and significantly increasing maintenance costs. Utility Model Content

[0005] To reduce the wear of the guide wheels on the loading platform during operation, this application provides an adaptive lifting guide wheel assembly mechanism for the loading platform of a stacker crane.

[0006] The adaptive lifting guide wheel assembly mechanism for a stacker crane loading platform provided in this application adopts the following technical solution: An adaptive lifting guide wheel assembly mechanism for a stacker crane loading platform includes a mounting base, a first guide wheel assembly, a second guide wheel assembly, and a third guide wheel assembly, wherein: Both the first guide wheel assembly and the second guide wheel assembly are mounted on the mounting base and are rotatably engaged with the mounting base. The first guide wheel assembly and the second guide wheel assembly clamp the lifting guide rail located near the loading platform and roll in cooperation with the lifting guide rail; The first guide wheel assembly contacts the side of the lifting guide rail closest to the stacker fork; The third guide wheel assembly is mounted on the mounting base, and the third guide wheel assembly contacts the side of the lifting guide rail near the loading platform.

[0007] Optionally, the mounting base may also be provided with an adjustment and positioning component.

[0008] Optionally, the adjustment and positioning assembly includes an adjustment part and a positioning part, wherein; The adjusting part includes multiple adjusting bolts; The mounting base is provided with multiple adjustable grooves; The adjusting bolt passes through the adjusting groove and is threadedly connected to the mounting base; The adjusting bolt secures the mounting base against the cargo platform.

[0009] Optionally, the positioning part includes a positioning seat, a positioning bolt, and a positioning nut, wherein: The positioning seat is disposed on the mounting seat; The positioning bolt passes through the positioning seat and is threadedly connected to the positioning nut. The bolt head of the positioning bolt and the positioning nut clamp the positioning seat.

[0010] Optionally, the positioning seat is provided with an opening; The positioning bolt is located at the opening.

[0011] Optionally, the mounting base includes a first mounting plate and a second mounting plate, wherein; The first mounting plate is disposed on the cargo platform; The second mounting plate is mounted on the first mounting plate and is parallel to the lifting guide rail; The first guide wheel assembly and the second guide wheel assembly are disposed on the second mounting plate.

[0012] Optionally, the first guide wheel assembly includes a rocker arm and a guide wheel, wherein: The middle part of the rocker arm is connected to the mounting base via a pivot, and rotates relative to the mounting base via the pivot; The guide wheel is provided in a pair, and the two guide wheels are respectively located at both ends of the rocker arm and rotate in cooperation with the rocker arm; The angle between the axis of rotation of the rotating shaft and the rotation axes of the two guide wheels is an obtuse angle.

[0013] Optionally, the rocker arm is provided with a reinforcing block; The rotating shaft passes through the reinforcing block.

[0014] Optionally, the third guide wheel assembly includes a mounting platform and a limiting wheel, wherein: The mounting platform is disposed on the mounting base; The limiting wheel is rotatably mounted on the mounting platform, and the limiting wheel is located between the first guide wheel assembly and the second guide wheel assembly.

[0015] In summary, this application includes at least one of the following beneficial technical effects: 1. By adapting to eccentric loads through the overall rotation of the first and second guide wheel assemblies, the force on the guide wheel assembly can be effectively reduced, the wear rate during operation can be slowed down, and maintenance costs can be reduced. 2. The rolling engagement between the third guide wheel assembly and the lifting guide rail can position the first and second guide wheel assemblies, greatly reducing the possibility of the guide wheel assembly disengaging from the lifting guide rail and enhancing the reliability of equipment operation; 3. The adjustment and positioning components on the mounting base can adjust the initial positions of the first guide wheel assembly and the second guide wheel assembly through the adjusting bolts, reducing the load on the guide wheel assembly during operation. At the same time, the positioning part can prevent the lifting guide wheel assembly mechanism from shifting as a whole when the loading platform picks up and puts up goods, thus improving the stability and accuracy of the equipment under complex working conditions. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the embodiment of this application and the cooperation of the lifting guide rail.

[0017] Figure 2 This is a schematic diagram of the overall structure of an embodiment of this application.

[0018] Figure 3 This is a schematic diagram illustrating the distribution of the adjustable waist groove in the implementation of this application.

[0019] Explanation of reference numerals in the attached figures: 1. Mounting base; 11. First mounting plate; 111. Adjusting groove; 12. Second mounting plate; 2. First guide wheel assembly; 21. Rocker arm; 211. Reinforcing block; 22. Guide wheel; 23. Rotating shaft; 3. Second guide wheel assembly; 4. Third guide wheel assembly; 41. Mounting platform; 42. Limit wheel; 5. Adjustment and positioning assembly; 51. Adjustment part; 511. Adjustment bolt; 52. Positioning part; 521. Positioning seat; 522. Positioning bolt; 523. Positioning nut; 524. Opening; 6. Lifting guide rail. Detailed Implementation

[0020] The following is in conjunction with the appendix Figures 1-3 This application will be described in further detail.

[0021] This application discloses an adaptive lifting guide wheel assembly mechanism for a stacker crane loading platform.

[0022] A stacker crane loading platform adaptive lifting guide wheel 22-group mechanism includes a mounting base 1, a first guide wheel assembly 2, a second guide wheel assembly 3, and a third guide wheel assembly 4. The mounting base 1 is mounted on the loading platform. The first guide wheel assembly 2 and the second guide wheel assembly 3 are both mounted on the mounting base 1 and rotatably engaged with it. The first guide wheel assembly 2 and the second guide wheel assembly 3 are respectively positioned on opposite sides of a lifting guide rail 6 and roll over it. The first guide wheel assembly 2 is located on the side of the lifting guide rail 6 closest to the stacker crane forklift. The third guide wheel assembly 4 is mounted on the mounting base 1, and rolls over the side of the lifting guide rail 6 closest to the loading platform.

[0023] When the stacker crane's forks extend and bear an eccentric load, the first guide wheel assembly 2 and the second guide wheel assembly 3 automatically and adaptively rotate as a whole according to the force conditions, adjusting the guide wheel angles, improving the force distribution, and thus reducing the magnitude of the force on the first guide wheel assembly 2 and the second guide wheel assembly 3. This slows down the wear rate of the first guide wheel assembly 2 and the second guide wheel assembly 3 during operation, reducing maintenance costs. The third guide wheel assembly 4 positions the first guide wheel assembly 2 and the second guide wheel assembly 3 through rolling cooperation with the lifting guide rail 6, reducing the possibility of the first guide wheel assembly 2 and the second guide wheel assembly 3 disengaging from the lifting guide rail 6.

[0024] Meanwhile, to prevent the loading platform from shifting due to excessive force when loading and unloading goods, the mounting base 1, the first guide wheel assembly 2, the second guide wheel assembly 3, and the third guide wheel assembly 4 are provided with an adjustment and positioning assembly 5. The mounting base 1 includes a first mounting plate 11 and a second mounting plate 12. The first mounting plate 11 is mounted on the loading platform, and the second mounting plate 12 is fixedly mounted on the end of the first mounting plate 11, and the second mounting plate 12 is parallel to the lifting guide rail 6. In this embodiment, the first mounting plate 11 and the second mounting plate 12 are perpendicular, and the first mounting plate 11 and the second mounting plate 12 are arranged in an L-shape. The first guide wheel assembly 2 and the second guide wheel assembly 3 are mounted on the second mounting plate 12, and the third guide wheel assembly 4 is mounted on the top of the first mounting plate 11.

[0025] The adjustment and positioning assembly 5 includes an adjustment part 51 and a positioning part 52. The adjustment part 51 includes multiple adjustment bolts 511. The first mounting plate 11 is provided with multiple adjustment grooves 111, which penetrate the first mounting plate 11. The length direction of the adjustment grooves 111 is parallel to the rotation axis 23 of the third guide wheel assembly 4. Each adjustment groove 111 is provided with an adjustment bolt 511. When the bottom of the first mounting plate 11 contacts the loading platform, the adjustment bolt 511 penetrates the adjustment groove 111 and is threadedly connected to the loading platform. The bolt head of the adjustment bolt 511 presses the first mounting plate 11 onto the loading platform. The position of the first guide wheel assembly 2 and the second guide wheel assembly 3 is adjusted by adjusting the position of the first mounting plate 11. The initial position of the first guide wheel assembly 2 and the second guide wheel assembly 3 is adjusted to reduce the load on the first guide wheel assembly 2 and the second guide wheel assembly 3 during operation, thereby reducing wear.

[0026] The positioning part 52 includes a positioning seat 521, a positioning bolt 522, and a positioning nut 523. The positioning seat 521 is fixedly installed on the top of the first mounting plate 11. The positioning bolt 522 passes through the positioning seat 521. The positioning nut 523 is threadedly connected to the positioning bolt 522, and the bolt head of the positioning bolt 522 and the positioning nut 523 clamp the positioning seat 521. The axial direction of the positioning bolt 522 is parallel to the length direction of the adjusting groove 111. The end of the positioning bolt 522 contacts the loading platform. The bolt heads of the two positioning bolts 522 of the two lifting guide wheel 22 groups on the loading platform are close to each other. Through the cooperation of the two positioning bolts 522, the two lifting guide wheel 22 groups are positioned as a whole, preventing the possibility of the lifting guide wheel 22 groups shifting when the loading platform is picking up or placing goods. The positioning seat 521 has an opening 524, and the positioning bolt 522 is placed inside the opening 524, improving the ease of placement of the positioning bolt 522. By rotating the positioning bolt 522, the end of the positioning bolt 522 is brought into contact with the loading platform, and the positioning nut 523 is pressed against the positioning seat 521, thereby improving stability.

[0027] The first guide wheel assembly 2 includes a rocker arm 21 and guide wheels 22. The middle part of the rocker arm 21 is connected to the second mounting plate 12 via a rotating shaft 23 and is rotatably engaged with the second mounting plate 12. A pair of guide wheels 22 are provided, with each guide wheel 22 located at one end of the rocker arm 21 and rotatably engaged with it. The rotation axis 23 of the guide wheels 22 is parallel to the axis of the rotating shaft 23, and the axis of the rotating shaft 23 is set at an obtuse angle to the rotation axis 23 of the two guide wheels 22. This facilitates reducing the load on the guide wheels 22 while ensuring easy contact between the guide wheels 22 and the lifting guide rail 6. A reinforcing block 211 is provided on the rocker arm 21, integrally formed with the rocker arm 21. The rotating shaft 23 passes through the reinforcing block 211, further increasing the contact area with the rotating shaft 23, improving the working stability of the rotating shaft 23, and reducing the possibility of deformation of the rotating shaft 23 due to load.

[0028] When the forks extend, the loading platform will shift to a certain extent. At this time, the guide wheel 22 can rotate at a certain angle through the rocker arm 21, which reduces the force on the individual guide wheel, improves the overall load-bearing capacity, extends the life of the guide wheel, and reduces maintenance costs.

[0029] The first guide wheel assembly 2 and the second guide wheel assembly 3 have the same structure.

[0030] The third guide wheel assembly 4 includes a mounting platform 41 and a limiting wheel 42. The mounting platform 41 is fixedly mounted on the first mounting plate 11, and the limiting wheel 42 is mounted on the side wall of the mounting platform 41 and rotates with the mounting platform 41. The limiting wheel 42 and the lifting guide rail 6 roll with each other on the side near the loading platform. The limiting wheel 42 is located between the first guide wheel assembly 2 and the second guide wheel assembly 3.

[0031] The implementation principle of the adaptive lifting guide wheel 22 group mechanism of the stacker crane loading platform in this application embodiment is as follows: During the operation of the adaptive lifting guide wheel 22 group mechanism of the stacker crane loading platform, when the stacker crane forks extend and generate eccentric loads, the first guide wheel assembly 2 and the second guide wheel assembly 3 will rotate as a whole according to the force conditions to reduce their own force and slow down the wear rate; the third guide wheel assembly 4 will position the first guide wheel assembly 2 and the second guide wheel assembly 3 by rolling cooperation with the lifting guide rail 6 to prevent them from disengaging from the lifting guide rail 6; the adjusting part 51 in the adjusting positioning assembly 5 can... By adjusting the position of the adjusting bolt 511 within the adjusting groove 111, the first mounting plate 11 is adjusted, thereby changing the initial positions of the first guide wheel assembly 2 and the second guide wheel assembly 3 to reduce the load during operation. The positioning bolt 522 and the positioning nut 523 of the positioning part 52 work together to position the two lifting guide wheel 22 groups of mechanisms as a whole, preventing the mounting base 1 and related components from shifting when the loading platform picks up and puts down goods. The structures of the first guide wheel assembly 2, the second guide wheel assembly 3, and the third guide wheel assembly 4 cooperate with each other, which also provides a guarantee for the stable operation of the entire lifting guide wheel 22 group mechanism and reduces wear.

[0032] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A stacker crane loading platform adaptive lifting guide wheel assembly mechanism, characterized in that: Includes a mounting base, a first guide wheel assembly, a second guide wheel assembly, and a third guide wheel assembly, wherein: Both the first guide wheel assembly and the second guide wheel assembly are mounted on the mounting base and are rotatably engaged with the mounting base. The first guide wheel assembly and the second guide wheel assembly clamp the lifting guide rail located near the loading platform and roll in cooperation with the lifting guide rail; The first guide wheel assembly contacts the side of the lifting guide rail closest to the stacker fork; The third guide wheel assembly is mounted on the mounting base, and the third guide wheel assembly contacts the side of the lifting guide rail near the loading platform.

2. The adaptive lifting guide wheel assembly mechanism for a stacker crane loading platform according to claim 1, characterized in that: The mounting base is also equipped with an adjustment and positioning component.

3. The adaptive lifting guide wheel assembly mechanism for a stacker crane loading platform according to claim 2, characterized in that: The adjustment and positioning assembly includes an adjustment part and a positioning part, wherein; The adjusting part includes multiple adjusting bolts; The mounting base is provided with multiple adjustable grooves; The adjusting bolt passes through the adjusting groove and is threadedly connected to the mounting base; The adjusting bolt secures the mounting base against the cargo platform.

4. The adaptive lifting guide wheel assembly mechanism for a stacker crane loading platform according to claim 3, characterized in that: The positioning part includes a positioning seat, a positioning bolt, and a positioning nut, wherein: The positioning seat is disposed on the mounting seat; The positioning bolt passes through the positioning seat and is threadedly connected to the positioning nut. The bolt head of the positioning bolt and the positioning nut clamp the positioning seat.

5. The adaptive lifting guide wheel assembly mechanism for a stacker crane loading platform according to claim 4, characterized in that: The positioning seat is provided with an opening; The positioning bolt is located at the opening.

6. The adaptive lifting guide wheel assembly mechanism for a stacker crane loading platform according to claim 1, characterized in that: The mounting base includes a first mounting plate and a second mounting plate, wherein; The first mounting plate is disposed on the cargo platform; The second mounting plate is mounted on the first mounting plate and is parallel to the lifting guide rail; The first guide wheel assembly and the second guide wheel assembly are disposed on the second mounting plate.

7. The adaptive lifting guide wheel assembly mechanism for a stacker crane loading platform according to claim 1, characterized in that: The first guide wheel assembly includes a rocker arm and a guide wheel, wherein: The middle part of the rocker arm is connected to the mounting base via a pivot, and rotates relative to the mounting base via the pivot; The guide wheel is provided in a pair, and the two guide wheels are respectively located at both ends of the rocker arm and rotate in cooperation with the rocker arm; The angle between the axis of rotation of the rotating shaft and the rotation axes of the two guide wheels is an obtuse angle.

8. The adaptive lifting guide wheel assembly mechanism for a stacker crane loading platform according to claim 7, characterized in that: The rocker arm is equipped with a reinforcing block; The rotating shaft passes through the reinforcing block.

9. The adaptive lifting guide wheel assembly mechanism for a stacker crane loading platform according to claim 1, characterized in that: The third guide wheel assembly includes a mounting platform and a limiting wheel, wherein: The mounting platform is disposed on the mounting base; The limiting wheel is rotatably mounted on the mounting platform, and the limiting wheel is located between the first guide wheel assembly and the second guide wheel assembly.

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