Stacker drive wheel assembly and stacker

Abstract

The utility model discloses a kind of stacker driving wheel assemblies and stackers, the mover of motor provides power to ground car main shaft, so that ground car main shaft can rotate relative to support, and drive walking wheel hub installed on ground car main shaft to rotate. Since first oil guide groove and second oil guide groove are provided on ground car main shaft, lubricating oil can be injected into ground car main shaft through first oil guide groove and second oil guide groove, so that lubricating oil flows along the radial and axial direction of ground car main shaft, so that continuous lubrication between ground car main shaft and inner hole can be ensured, preventing the phenomenon of ground car main shaft and inner hole from locking, the motor is convenient to disassemble and assemble with ground car main shaft, reduces maintenance cost, and improves maintenance efficiency.

Description

Technical Field

[0001] This utility model relates to the field of cargo handling, specifically to a stacker crane drive wheel assembly and a stacker crane. Background Technology

[0002] The existing stacker cranes suffer from frequent wear on the motor and spindle, and lubrication is difficult to replenish. Over time, the spindle and motor inner hole will rust and seize up. The current solution is to lay it down and soak it in rust remover. If the rust remover can penetrate, it needs to soak for at least several hours. If the rust remover cannot penetrate, special disassembly tools, such as hydraulic jacks or pullers, are required. However, using tools to forcibly remove it may break the gearbox under the motor, increasing the subsequent maintenance cost. Furthermore, after the spindle is removed, the rust in the motor inner hole needs to be cleaned before it can be used again, which reduces maintenance efficiency. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, this utility model provides a stacker crane drive wheel assembly and a stacker crane, which can solve the problem of inconvenient disassembly and assembly of the existing stacker crane motor and main shaft.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: On the one hand, a stacker crane drive wheel assembly is provided, including a motor, a ground car main shaft, a traveling wheel hub and a support. The motor has an inner hole, one end of the ground car main shaft is connected to the inner hole, and the ground car main shaft is rotatably mounted on the support. The traveling wheel hub is fixedly mounted on the ground car main shaft. The end of the ground car main shaft connected to the inner hole is provided with a first oil guide groove and a second oil guide groove. The first oil guide groove surrounds the circumference of the ground car main shaft, and the second oil guide groove extends along the axial direction of the ground car main shaft. The first oil guide groove and the second oil guide groove are in communication.

[0005] As a further improvement to the above technical solution, three first oil guide grooves are provided, and the three first oil guide grooves are evenly arranged along the axial direction of the main shaft of the ground vehicle; two second oil guide grooves are provided, and the two second oil guide grooves are arranged opposite each other along the radial direction of the main shaft of the ground vehicle.

[0006] As a further improvement to the above technical solution, the surface of the trolley spindle is provided with a first flat key extending along its axial direction, and the inner wall of the inner hole is provided with a first keyway, and the first flat key is engaged in the first keyway.

[0007] As a further improvement to the above technical solution, the surface of the vehicle spindle is provided with a second flat key extending along its axial direction, and the inner side of the wheel hub of the traveling wheel is provided with a second keyway, and the second flat key is engaged in the second keyway.

[0008] As a further improvement to the above technical solution, two second flat keys are provided, and the two second flat keys are arranged opposite each other radially along the main shaft of the ground vehicle. Two second keyways are provided, and the two second keyways are arranged opposite each other on the inner side of the wheel hub of the traveling wheel. The two second flat keys are respectively engaged with the two second keyways.

[0009] As a further improvement to the above technical solution, a motor fixing plate is provided on the support, and the stator of the motor is mounted on the motor fixing plate; a first connecting channel is provided on the motor fixing plate, and a first bushing is provided in the first connecting channel, and the main shaft of the ground vehicle is rotatably connected in the first bushing.

[0010] As a further improvement to the above technical solution, the support is provided with a second connecting channel, the first connecting channel and the second connecting channel are coaxially arranged, a bearing is provided in the second connecting channel, and the main shaft of the ground vehicle is connected to the bearing.

[0011] As a further improvement to the above technical solution, a second bushing is also provided in the second connecting channel. The second bushing and the bearing are arranged along the axial direction of the second connecting channel, and the main shaft of the ground vehicle passes through the second bushing.

[0012] As a further improvement to the above technical solution, a connecting part is provided on the main shaft of the ground vehicle. The diameter of the connecting part is larger than the diameter of other parts of the main shaft of the ground vehicle, and the wheel hub of the traveling wheel is fixedly installed on the connecting part.

[0013] On the other hand, a stacker crane is provided, including the aforementioned stacker crane drive wheel assembly.

[0014] The beneficial effects of this invention are as follows: The motor's mover provides power to the main shaft of the trolley, enabling the main shaft to rotate relative to the support and drive the wheel hubs of the traveling wheels mounted on the main shaft to rotate. Because the main shaft is equipped with a first and second oil guide groove, lubricating oil can be injected into it, allowing the oil to flow radially and axially along the main shaft. This ensures continuous lubrication between the main shaft and the inner bore, preventing seizing. The motor and main shaft are easy to assemble and disassemble, reducing maintenance costs and improving maintenance efficiency. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a schematic diagram of the stacker crane drive wheel assembly provided in a preferred embodiment of the present invention; Figure 2This is an exploded view of the stacker crane drive wheel assembly provided in a preferred embodiment of the present invention; Figure 3 yes Figure 2 A diagram from another angle; Figure 4 This is a partial structural schematic diagram of the stacker crane drive wheel assembly provided in a preferred embodiment of the present invention; Figure 5 This is a structural schematic diagram of the main shaft of the ground vehicle and the wheel hub of the traveling wheel provided in a preferred embodiment of this utility model; Figure 6 This is a schematic diagram of the structure of the main shaft of the ground vehicle provided in a preferred embodiment of the present invention; Figure 7 yes Figure 6 Enlarged view of part A in the middle.

[0017] Attached reference numerals: 1. Motor; 2. Main shaft of the trolley; 3. Wheel hub of the traveling wheel; 4. Support. Inner hole, 21, first oil guide groove, 22, second oil guide groove, 23, first flat key, 24, second flat key, 25, connecting part, 31, second keyway, 41, motor fixing plate, 42, second connecting channel; 111, First keyway; 411, First connecting channel; 412, First bushing; 421, Bearing; 422, Second bushing. Detailed Implementation

[0018] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / connections involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. For example, fixed connections / fixed installations can use screw connections, bolt connections, pin connections, key connections, adhesive connections, mortise and tenon connections, welding, riveting, etc., as needed. For detachable connections, screw connections, bolt connections, threaded connections, snap-fit ​​connections, mortise and tenon connections, Velcro connections, etc., can be used as needed. The various technical features in this utility model can be combined interactively without contradicting each other.

[0019] Please see Figure 1-7A preferred embodiment of this utility model provides a stacker crane drive wheel assembly, including a motor 1, a ground car main shaft 2, a traveling wheel hub 3, and a support 4. The mover of the motor 1 is provided with an inner hole 11. One end of the ground car main shaft 2 is connected to the inner hole 11, and the ground car main shaft 2 is rotatably mounted on the support 4. The traveling wheel hub 3 is fixedly mounted on the ground car main shaft 2. The mover of the motor 1 provides power to the ground car main shaft 2, so that the ground car main shaft 2 can rotate relative to the support 4, and drive the traveling wheel hub 3 mounted on the ground car main shaft 2 to rotate.

[0020] Specifically, the end of the trolley main shaft 2 connected to the inner hole 11 is provided with a first oil guide groove 21 and a second oil guide groove 22. The first oil guide groove 21 surrounds the circumference of the trolley main shaft 2, and the second oil guide groove 22 extends along the axial direction of the trolley main shaft 2. The first oil guide groove 21 and the second oil guide groove 22 are connected, and lubricating oil can be injected into the trolley main shaft 2 through the first oil guide groove 21 and the second oil guide groove 22, so that the lubricating oil flows along the radial and axial directions of the trolley main shaft 2, so that the trolley main shaft 2 and the inner hole 11 can be continuously lubricated, preventing the trolley main shaft 2 and the inner hole 11 from seizing. The motor 1 and the trolley main shaft 2 are easy to disassemble and assemble, reducing maintenance costs and improving maintenance efficiency.

[0021] In this embodiment, three first oil guide grooves 21 are provided, and the three first oil guide grooves 21 are evenly arranged along the axial direction of the ground car main shaft 2; two second oil guide grooves 22 are provided, and the two second oil guide grooves 22 are arranged opposite each other along the radial direction of the ground car main shaft 2, so as to increase the flow area of ​​lubricating oil on the surface of the ground car main shaft 2 and further ensure the continuous lubrication of the ground car main shaft 2 and the inner hole 11.

[0022] The surface of the trolley spindle 2 is provided with a first flat key 23 and a second flat key 24 extending along its axial direction. The inner wall of the inner hole 11 is provided with a first keyway 111. The first flat key 23 is engaged in the first keyway 111. The engagement of the first flat key 23 and the first keyway 111 ensures that the trolley spindle 2 and the inner hole 11 have a fixed relative position in the circumferential direction, so that they can rotate synchronously and will not rotate relative to each other, thus ensuring the firmness of the connection between the trolley spindle 2 and the inner hole 11. The inner side of the wheel hub 3 is provided with a second keyway 31. The second flat key 24 is engaged in the second keyway 31. The engagement of the second flat key 24 and the second keyway 31 enables the synchronous rotation of the trolley spindle 2 and the wheel hub 3, which transmits torque and ensures alignment while taking into account assembly and usage requirements.

[0023] In this embodiment, two second flat keys 24 are provided, and the two second flat keys 24 are arranged opposite each other along the radial direction of the ground car main shaft 2. Two second keyways 31 are provided, and the two second keyways 31 are arranged opposite each other on the inner side of the traveling wheel hub 3. The two second flat keys 24 are respectively engaged with the two second keyways 31. Both sides of the ground car main shaft 2 can be circumferentially fixed on the inner side of the traveling wheel hub 3, further preventing the ground car main shaft 2 from rotating relative to the traveling wheel hub 3, thereby ensuring the synchronous rotation of the two.

[0024] A motor fixing plate 41 is provided on the support 4, and the stator of the motor 1 is installed on the motor fixing plate 41. A first connecting channel 411 is provided on the motor fixing plate 41, and a first bushing 412 is provided in the first connecting channel 411. The main shaft 2 of the ground car is rotatably connected in the first bushing 412. The first bushing 412 can reduce the friction when the main shaft 2 of the ground car rotates, so that the two can achieve smooth and low-resistance rotational movement.

[0025] The support 4 is provided with a second connecting channel 42. The first connecting channel 411 and the second connecting channel 42 are coaxially arranged. The second connecting channel 42 is provided with a bearing 421. The main shaft 2 of the ground car is connected to the bearing 421. The bearing 421 can support the rotation of the main shaft 2 of the ground car, reduce the coefficient of friction during its movement, and ensure its rotational accuracy.

[0026] To further reduce the friction when the main shaft 2 of the ground car rotates, a second bushing 422 is also provided in the second connecting channel 42. The second bushing 422 and the bearing 421 are arranged along the axial direction of the second connecting channel 42. The main shaft 2 of the ground car passes through the second bushing 422, and the second bushing 422 can provide stable support for the main shaft 2 of the ground car, so as to realize and maintain a precise, stable and lasting relative motion relationship between the main shaft 2 of the ground car and the support 4.

[0027] In this embodiment, a connecting part 25 is provided on the main shaft 2 of the ground vehicle. The diameter of the connecting part 25 is larger than the diameter of other parts of the main shaft 2 of the ground vehicle. The wheel hub 3 of the traveling wheel is fixedly installed on the connecting part 25. The setting of the connecting part 25 can make the main shaft 2 of the ground vehicle and the wheel hub 3 fit more tightly, avoid the connection between the two from contacting the air and rusting, and ensure that the main shaft 2 of the ground vehicle and the wheel hub 3 will not wear due to excessive gap.

[0028] A preferred embodiment of this utility model also provides a stacker crane, including the stacker crane drive wheel assembly of the above embodiment. Since the ground car main shaft 2 is provided with a first oil guide groove 21 and a second oil guide groove 22, lubricating oil can be injected into the ground car main shaft 2 through the first oil guide groove 21 and the second oil guide groove 22, so that the lubricating oil flows along the radial and axial directions of the ground car main shaft 2, so that the ground car main shaft 2 and the inner hole 11 can be continuously lubricated, preventing the ground car main shaft 2 and the inner hole 11 from seizing. The motor 1 and the ground car main shaft 2 are easy to disassemble and assemble, reducing maintenance costs and improving maintenance efficiency.

[0029] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A stacker crane drive wheel assembly, characterized in that: The device includes a motor, a trolley main shaft, wheel hubs, and a support. The motor has an inner hole, one end of the trolley main shaft is connected to the inner hole, and the trolley main shaft is rotatably mounted on the support. The wheel hubs are fixedly mounted on the trolley main shaft. The end of the trolley main shaft connected to the inner hole is provided with a first oil guide groove and a second oil guide groove. The first oil guide groove surrounds the circumference of the trolley main shaft, and the second oil guide groove extends along the axial direction of the trolley main shaft. The first oil guide groove and the second oil guide groove communicate with each other.

2. The stacker crane drive wheel assembly according to claim 1, characterized in that: There are three first oil guide grooves, which are evenly arranged along the axial direction of the main shaft of the ground vehicle; there are two second oil guide grooves, which are arranged opposite each other along the radial direction of the main shaft of the ground vehicle.

3. The stacker crane drive wheel assembly according to claim 1, characterized in that: The surface of the trolley spindle is provided with a first flat key extending along its axial direction, and the inner wall of the inner hole is provided with a first keyway, and the first flat key is engaged in the first keyway.

4. The stacker crane drive wheel assembly according to claim 1, characterized in that: The surface of the main shaft of the ground vehicle is provided with a second flat key extending along its axial direction, and the inner side of the wheel hub of the traveling wheel is provided with a second keyway, and the second flat key is engaged in the second keyway.

5. The stacker crane drive wheel assembly according to claim 4, characterized in that: There are two second flat keys, which are arranged radially opposite each other along the main shaft of the ground vehicle. There are two second keyways, which are arranged opposite each other on the inner side of the wheel hub of the traveling wheel. The two second flat keys are respectively engaged with the two second keyways.

6. The stacker crane drive wheel assembly according to claim 1, characterized in that: The support is provided with a motor fixing plate, and the stator of the motor is mounted on the motor fixing plate; the motor fixing plate is provided with a first connecting channel, and a first bushing is provided in the first connecting channel, and the main shaft of the ground vehicle is rotatably connected in the first bushing.

7. The stacker crane drive wheel assembly according to claim 6, characterized in that: The support is provided with a second connecting channel, the first connecting channel and the second connecting channel are coaxially arranged, a bearing is provided in the second connecting channel, and the main shaft of the ground car is connected to the bearing.

8. The stacker crane drive wheel assembly according to claim 7, characterized in that: A second bushing is also provided in the second connecting channel. The second bushing and the bearing are arranged along the axial direction of the second connecting channel, and the main shaft of the ground vehicle passes through the second bushing.

9. The stacker crane drive wheel assembly according to claim 1, characterized in that: The main shaft of the ground vehicle is provided with a connecting part, the diameter of which is larger than the diameter of other parts of the main shaft of the ground vehicle, and the wheel hub of the traveling wheel is fixedly installed on the connecting part.

10. A stacker crane, characterized in that: Includes the stacker crane drive wheel assembly as described in any one of claims 1-9.

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