A bearing mounting device for a stacker wheel box

Abstract

The application discloses a bearing mounting equipment of a walking wheel box of a stacker, relates to the technical field of bearing mounting, and comprises a main shaft and a mounting shaft arranged at one end of the main shaft, wherein the diameter of the mounting shaft is smaller than that of the main shaft. The application is characterized in that a scale ring with an angle scale line is rotationally connected to the outer wall of the second circular ring, a stop piece one is fixedly arranged at the 0-degree scale position of the scale ring, and a stop piece two is arranged on the inner wall of the second circular ring and can move along the ring groove in the circumferential direction and be fixed through a positioning device. According to the bearing mounting specification requirements, an operator can accurately read the scale through a pointer, move the stop piece two to a target angle and lock it. During operation, the hook-shaped wrench only needs to be rotated from the starting reference position formed by the stop piece one to the terminal position defined by the stop piece two, the rotation angle of the locking ring can be accurately controlled, the accurate control of the bearing pre-tightening force is realized, the damage of the bearing mounting process caused by the out-of-control pre-tightening force is avoided, and the mounting precision and service life of the bearing are ensured.

Description

Technical Field

[0001] This invention relates to the field of bearing installation technology, and in particular to a bearing installation device for a stacker crane's traveling wheel box. Background Technology

[0002] Stacker cranes are the core logistics equipment in automated warehouses (AS / RS), responsible for picking up, placing, and transporting unitized goods between racks and aisles. Their operational reliability directly affects the efficiency of the AS / RS. The wheel housing, as the core component of the stacker crane's walking mechanism, is installed at the bottom of the stacker crane and plays a crucial role in supporting the overall weight of the crane and driving it along the running track. The bearings in the wheel housing are key components ensuring smooth wheel rotation and stable load-bearing capacity. During installation, an overly tight fit will cause the bearing to overheat and accelerate wear, while an overly loose fit will cause shaking and abnormal noise, affecting walking accuracy.

[0003] Current installation methods for bearings with adapter sleeves involve first sliding the adapter sleeve onto the shaft, then manually tightening the lock nut onto the sleeve thread. A hook wrench is then used to tighten the lock nut to the angle specified in the installation manual. The tightening angle of the lock nut usually relies on visual inspection or experience by the operator, lacking precise quantitative control. Although some technical manuals specify recommended tightening angles or torque values, in practice, operators find it difficult to accurately control the rotation angle of the lock nut. Poor consistency in operation between different operators can easily lead to bearing damage due to excessive or insufficient preload. Over-tightening the nut can reduce bearing clearance and deform the inner ring. Summary of the Invention

[0004] The purpose of this invention is to provide a bearing installation device for the traveling wheel box of a stacker crane, so as to solve the problems mentioned in the background art, such as the difficulty in accurately controlling the rotation angle of the locking nut during the installation of existing bearings, poor consistency of operation among different operators, and easy damage to the bearing due to excessive or insufficient preload.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a bearing installation device for a stacker crane traveling wheel box, comprising a main shaft and an installation shaft disposed at one end of the main shaft, the installation shaft having a diameter smaller than that of the main shaft, a locking sleeve being fitted on the outer wall of the installation shaft, the locking sleeve having an opening on its outer wall, a bearing being fitted onto the outer wall of the locking sleeve, a locking ring being threaded onto the outer wall of the locking sleeve, a threaded groove being provided at one end of the installation shaft, a locking nut being threaded into the threaded groove, a locking cap being threaded onto the outer wall of the locking nut, a stop plate being provided between the top end of the installation shaft and the locking cap, the stop plate comprising a sleeve plate fitted onto the locking nut and an L-shaped plate fixedly connected to the top end of the sleeve plate, the corner of the L-shaped plate extending into the opening of the locking sleeve, and a hook-shaped wrench being provided on the locking ring for rotating the locking ring;

[0006] The outer wall of the main shaft is fitted with a first ring. Two connecting plates are fixedly connected to the outer wall of the first ring. The ends of the two connecting plates away from the first ring are fixedly connected to a second ring. One end of the first ring is provided with a rotatable external toothed ring. Four square rods with equal spacing and penetrating the first ring are slidably connected to the outer wall of the first ring. The bottom end of the square rods is fixedly connected to a fan-shaped abutment plate. When the external toothed ring rotates counterclockwise, it can drive the fan-shaped abutment plate to move toward the main shaft and abut against the outer wall of the main shaft, so that the first and second rings are concentrically arranged with the main shaft. When the external toothed ring rotates clockwise, the fan-shaped abutment plate can move toward the direction away from the main shaft. The outer wall of the first ring is provided with a one-way locking device. The one-way locking device is used to prevent the external toothed ring from rotating clockwise when the fan-shaped abutment plate abuts against the main shaft.

[0007] The outer wall of the second ring is rotatably connected to a graduated ring arranged concentrically with the second ring. The inner wall of the graduated ring is fixedly connected to a stop member, which is located at the 0° position of the graduated ring. The graduated ring is provided with a fixing device. When the graduated ring rotates, the stop member abuts against the outer wall of the hook wrench. The inner wall of the second ring is provided with a movable stop member, which is provided with a positioning device. The stop member can move along the inner wall of the second ring to the required angle and is fixed by the positioning device. The stop member is used to block the rotation angle of the hook wrench.

[0008] Preferably, a limiting plate is fixedly connected to one end of the square rod, and a spring is sleeved on the outer wall of the square rod, with the two ends of the spring abutting against the bottom surface of the limiting plate and the outer wall of the ring, respectively.

[0009] The outer wall of the square rod is fixedly connected to a push rod facing the inner wall of the outer toothed ring. The inner wall of the outer toothed ring is fixedly connected to four arc-shaped plates corresponding to the push rods one by one. The outer wall of the arc-shaped plates abuts against the outer wall of the push rods.

[0010] Preferably, the outer wall of the external toothed ring is fixedly connected to an installation ring, the connecting plate is provided with a relief groove, the inner wall of the relief groove is provided with an installation groove, and one end of the installation ring extends into the installation groove.

[0011] Preferably, the one-way locking device includes a mounting plate fixedly connected to the outer wall of the ring, a support rod facing the outer toothed ring fixedly connected to the outer wall of the mounting plate, a locking plate rotatably sleeved on the outer wall of the support rod, and a coil spring sleeved on the outer wall of the support rod, with both ends of the coil spring fixedly connected to the outer wall of the mounting plate and the outer wall of the locking plate, respectively.

[0012] Preferably, the first stop includes a stop block fixedly connected to the inner wall of the scale ring, and a second stop bar fixedly connected to the side of the stop block facing the hook wrench. The second stop bar abuts against the outer wall of the handle of the hook wrench, serving as the positioning of the starting point of the hook handle.

[0013] Preferably, the fixing device includes an extension plate two fixedly connected to the outer wall of the scale ring, and a positioning bolt two is rotatably connected to the internal thread of the extension plate two. When the bottom end of the positioning bolt two abuts against the outer wall of the ring two, it is used to fix the scale ring.

[0014] Preferably, the second stop includes an annular groove formed on the inner wall of the second annular ring, a slider is slidably connected in the annular groove, a sliding plate is fixedly connected to the top of the slider, the outer wall of the sliding plate is fixedly connected to one end of the pointer, and a stop bar is fixedly connected to the inner wall of the sliding plate. The stop bar is used to limit the rotation angle of the hook wrench.

[0015] Preferably, the positioning device includes an extension plate fixedly connected to the outer wall of the sliding plate, and a positioning bolt is rotatably connected to the extension plate with an internal thread. The bottom end of the positioning bolt faces the inner wall of the annular groove, and the positioning bolt abuts against the inner wall of the annular groove to fix the position of the sliding plate.

[0016] The technical effects and advantages of this invention are as follows: By rotatably connecting a graduated ring with angle markings to the outer wall of the second ring, and fixing a stopper at the 0° mark position of the graduated ring, and a stopper two that can move circumferentially along the ring groove and is fixed by a positioning device on the inner wall of the second ring, the operator can accurately read the scale using a pointer according to the bearing installation specifications, move the stopper two to the target angle, and lock it. During operation, simply rotating the hook wrench from the starting reference position formed by the first stopper to the ending position defined by the second stop is sufficient to precisely control the rotation angle of the locking ring, thereby achieving precise control of the bearing preload. This avoids damage to the bearing during installation due to uncontrolled preload, ensuring the installation accuracy and service life of the bearing. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a schematic diagram of the bearing mounting position structure of the present invention.

[0019] Figure 3 This is a schematic diagram of the locking ring mounting position structure of the present invention.

[0020] Figure 4 This is a schematic diagram of the mounting position structure of the stop plate according to the present invention.

[0021] Figure 5 This is a schematic diagram of a portion of the ring structure of the present invention.

[0022] Figure 6 This is a schematic diagram of the two-part ring structure of the present invention.

[0023] Figure 7This is a schematic diagram of the external toothed ring portion of the present invention.

[0024] In the diagram: 1. Main spindle; 11. Mounting shaft; 12. Locking sleeve; 13. Bearing; 14. Locking ring; 15. Stop plate; 16. Locking nut; 17. Locking nut; 18. Hook wrench; 2. Ring one; 21. Connecting plate; 22. Square rod; 23. Fan-shaped abutment plate; 24. Limiting plate; 25. Spring; 26. Push rod; 27. Leaving groove; 28. Mounting groove; 3. Ring two; 31. Ring groove; 32. Sliding plate; 33. Stop bar one; 34. Extension plate one; 35. Positioning bolt one; 36. Pointer; 4. External toothed ring; 41. Arc plate; 42. Mounting ring; 5. One-way locking device; 51. Mounting plate; 52. Support rod; 53. Coil spring; 54. Locking plate; 6. Scale ring; 61. Extension plate two; 62. Positioning bolt two; 63. Stop block; 64. Stop bar two. Detailed Implementation

[0025] 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.

[0026] This invention provides, for example Figure 1-7 The bearing mounting device for a stacker crane traveling wheel box shown includes a main shaft 1 and a mounting shaft 11 provided at one end of the main shaft 1. The diameter of the mounting shaft 11 is smaller than that of the main shaft 1. A locking sleeve 12 is fitted on the outer wall of the mounting shaft 11. An opening is provided on the outer wall of the locking sleeve 12. A bearing 13 is fitted on the outer wall of the locking sleeve 12. A locking ring 14 is threadedly fitted on the outer wall of the locking sleeve 12. A threaded groove is provided at one end of the mounting shaft 11. A locking nut 16 is threadedly connected in the threaded groove. A locking nut 17 is threadedly connected to the outer wall of the locking nut 16. A stop plate 15 is provided between the top end of the mounting shaft 11 and the locking nut 17. The stop plate 15 includes a sleeve plate fitted on the locking nut 16 and an L-shaped plate fixedly connected to the top end of the sleeve plate. The corner of the L-shaped plate extends into the opening of the locking sleeve 12. A hook-shaped wrench 18 that can push the locking ring 14 to rotate is provided on the locking ring 14.

[0027] A ring 1 2 is fitted on the outer wall of the main shaft 1. Two connecting plates 21 are fixedly connected to the outer wall of the ring 1 2. A ring 2 3 is fixedly connected to the end of the two connecting plates 21 away from the ring 1 2. A rotatable external toothed ring 4 is provided at one end of the ring 1 2. Four square rods 22 with equal spacing and passing through the ring 1 2 are slidably connected on the outer wall of the ring 1 2. A fan-shaped abutment plate 23 is fixedly connected to the bottom end of the square rods 22. When the external toothed ring 4 rotates counterclockwise, it can drive the fan-shaped abutment plate 23 to move toward the main shaft 1 and abut against the outer wall of the main shaft 1, so that the ring 1 2 and the ring 2 3 are arranged concentrically with the main shaft 1. When the external toothed ring 4 rotates clockwise, the fan-shaped abutment plate 23 can move toward the direction away from the main shaft 1. A one-way locking device 5 is provided on the outer wall of the ring 1 2. The one-way locking device 5 is used to prevent the external toothed ring 4 from rotating clockwise when the fan-shaped abutment plate 23 abuts against the main shaft 1.

[0028] The outer wall of the second ring 3 is rotatably connected to a scale ring 6 arranged concentrically with the second ring 3. The inner wall of the scale ring 6 is fixedly connected to a stop 1, which is located at the 0° position of the scale ring 6. The scale ring 6 is provided with a fixing device. When the scale ring 6 rotates, the stop 1 abuts against the outer wall of the hook wrench 18. The inner wall of the second ring 3 is provided with a movable stop 2, which is provided with a positioning device. The stop 2 can move along the inner wall of the second ring 3 to the required angle and be fixed by the positioning device. The stop 2 is used to block the rotation angle of the hook wrench 18.

[0029] The present invention provides a bearing 13 mounting device for a stacker crane traveling wheel box, including a main shaft 1 and a mounting shaft 11 disposed at the top of the main shaft 1. The diameter of the mounting shaft 11 is smaller than the diameter of the main shaft 1, and a stepped shaft structure is formed between the two.

[0030] First, a locking sleeve 12 is fitted onto the outer wall of the mounting shaft 11. The locking sleeve 12 is cylindrical in shape, with an axial opening on its outer wall, allowing for a certain amount of elastic contraction in the radial direction. The bearing 13 to be installed is fitted onto the outer wall of the locking sleeve 12. The outer wall of the locking sleeve 12 is provided with external threads, and a locking ring 14 is threaded onto these threads. By rotating the locking ring 14, the locking sleeve 12 can be pushed to contract radially, thereby achieving an interference fit between the bearing 13 and the mounting shaft 11.

[0031] The top end of the mounting shaft 11 has a threaded groove, and the locking nut 16 is threaded into the threaded groove. The outer wall of the locking nut 16 has external threads, and the locking nut 17 is threaded into the outer wall of the locking nut 16. A stop plate 15 is provided between the top end of the mounting shaft 11 and the locking nut 17. The stop plate 15 includes a sleeve plate that fits onto the locking nut 16 and an L-shaped plate that is fixedly connected to the top end of the sleeve plate. The corner of the L-shaped plate extends into the opening of the locking sleeve 12 to prevent the locking sleeve 12 from rotating synchronously with the locking ring 14.

[0032] A hook wrench 18 is fitted onto the locking ring 14. The handle of the hook wrench 18 extends axially along the mounting shaft 11 to the outside of the main shaft 1, so that the operator can operate in the area outside the main shaft 1.

[0033] Secondly, a ring 1 2 is fitted onto the outer wall of the main shaft 1. Two connecting plates 21 are fixedly connected to the outer wall of the ring 1 2. The two connecting plates 21 are symmetrically arranged on both sides of the ring 1 2, and a ring 2 3 is fixedly connected to the end of the two connecting plates 21 away from the ring 1 2. The ring 1 2, the connecting plates 21 and the ring 2 3 together form an integral frame structure.

[0034] One end of the ring 2 is provided with a rotatable external toothed ring 4. Four equally spaced square rods 22 are slidably connected radially on the outer wall of the ring 2. The cross-section of the square rods 22 is square to ensure that they do not rotate circumferentially during sliding. The bottom end of each square rod 22 is fixedly connected to a fan-shaped abutment plate 23, and the inner arc surface of the fan-shaped abutment plate 23 matches the arc of the outer wall of the main shaft 1.

[0035] When the external gear ring 4 rotates counterclockwise, it drives the four sector-shaped abutment plates 23 to move radially toward the main shaft 1 simultaneously and abut tightly against the outer wall of the main shaft 1, thereby achieving concentric positioning of the first ring 2 and the second ring 3 with the main shaft 1. When the external gear ring 4 rotates clockwise, the sector-shaped abutment plates 23 move away from the main shaft 1, releasing the locking state with the main shaft 1.

[0036] The outer wall of the ring 2 is provided with a one-way locking device 5, which is used to prevent the outer toothed ring 4 from rotating clockwise, thereby ensuring that the outer toothed ring 4 will not come loose due to accidental operation after concentric positioning is completed.

[0037] Finally, a graduated ring 6 is rotatably connected to the outer wall of the second ring 3. The graduated ring 6 is concentrically arranged with the second ring 3 and can rotate freely around the outer wall of the second ring 3. Angle graduations are arranged circumferentially on the outer surface of the graduated ring 6. A stop is fixedly connected to the inner wall of the graduated ring 6, and the stop is located at the 0° graduation position of the graduated ring 6. A fixing device is provided on the graduated ring 6 to lock the graduated ring 6 to any rotational position on the second ring 3.

[0038] A movable stop is provided on the inner wall of the second ring 3. The stop can move along the inner circumference of the second ring 3 to any desired angle position and be fixed by a positioning device.

[0039] In actual operation, firstly, rotate the scale ring 6 so that the first stop abuts against one side of the handle of the hook wrench 18, forming the starting reference for rotation. Then, lock the scale ring 6 using the fixing device. Subsequently, move the second stop along the inner wall of the second ring 3 to the target angle, and fix the second stop using the positioning device. The operator holds the hook wrench 18 and starts rotating it from the position of the first stop until the other side of its handle abuts against the second stop, thereby precisely controlling the rotation angle of the locking ring 14 and achieving precise control of the preload of the bearing 13.

[0040] This invention utilizes a graduated ring 6 with angular markings rotatably connected to the outer wall of a second ring 3. A stopper 1 is fixed at the 0° mark of the graduated ring 6, and a stopper 2, movable circumferentially along the annular groove 31 and fixed by a positioning device, is located on the inner wall of the second ring 3. Operators can precisely read the scale using pointer 36 according to the bearing 13 installation specifications, move the stopper 2 to the target angle, and lock it in place. During operation, simply rotating the hook wrench 18 from the starting reference position formed by the stopper 1 to the ending position defined by the stopper 2 precisely controls the rotation angle of the locking ring 14, thereby achieving precise control of the bearing 13 preload. This avoids damage to the bearing 13 during installation due to uncontrolled preload, ensuring the installation accuracy and service life of the bearing 13.

[0041] like Figure 1 , Figure 5 and Figure 7 As shown, one end of the square rod 22 is fixedly connected to the limiting plate 24, and a spring 25 is sleeved on the outer wall of the square rod 22. The two ends of the spring 25 abut against the bottom surface of the limiting plate 24 and the outer wall of the ring 2, respectively.

[0042] The outer wall of the square rod 22 is fixedly connected to a push rod 26 facing the inner wall of the outer toothed ring 4. The inner wall of the outer toothed ring 4 is fixedly connected to four arc-shaped plates 41 corresponding to the push rod 26 one by one. The outer wall of the arc-shaped plate 41 abuts against the outer wall of the push rod 26.

[0043] When the operator rotates the outer gear ring 4 counterclockwise, the arc-shaped plate 41 rotates synchronously with the outer gear ring 4. The convex part of the arc-shaped plate 41 gradually contacts the push rod 26 and pushes the push rod 26, overcoming the elastic force of the spring 25, and causing the square rod 22 and the fan-shaped abutment plate 23 to move radially inward, thereby clamping the main shaft 1. When the operator rotates the outer gear ring 4 clockwise, the convex part of the arc-shaped plate 41 gradually disengages from the push rod 26. Under the action of the restoring elastic force of the spring 25, the square rod 22 and the fan-shaped abutment plate 23 move radially outward, automatically releasing the locking state with the main shaft 1.

[0044] like Figure 5 and Figure 7As shown, an mounting ring 42 is fixedly connected to the outer wall of the external toothed ring 4. A relief groove 27 is provided on the connecting plate 21. An installation groove 28 is provided on the inner wall of the relief groove 27. One end of the mounting ring 42 extends into the installation groove 28.

[0045] An mounting ring 42 is fixedly connected to the outer wall of the external gear ring 4. The mounting ring 42 is circular in shape and is coaxially arranged with the external gear ring 4 and fixedly connected as a whole.

[0046] The connecting plate 21 has a clearance groove 27, which is a through groove extending through the thickness of the connecting plate 21. Its shape and size match the outer contour of the external gear ring 4, providing clearance space for the rotation of the external gear ring 4. The inner wall of the clearance groove 27 has a mounting groove 28, which is an annular groove structure.

[0047] One end of the mounting ring 42 extends into the mounting groove 28 and can rotate freely within the mounting groove 28. Through the rotational engagement of the mounting ring 42 and the mounting groove 28, the external toothed ring 4 is rotatably connected relative to the ring 2 and the connecting plate 21.

[0048] like Figure 1 and Figure 5 As shown, the one-way locking device 5 includes a mounting plate 51 fixedly connected to the outer wall of the ring 2. A support rod 52 facing the outer toothed ring 4 is fixedly connected to the outer wall of the mounting plate 51. A locking plate 54 is rotatably sleeved on the outer wall of the support rod 52. A coil spring 53 is sleeved on the outer wall of the support rod 52. The two ends of the coil spring 53 are fixedly connected to the outer wall of the mounting plate 51 and the outer wall of the locking plate 54, respectively.

[0049] Mounting plate 51 is fixedly connected to the outer wall of ring 2. One end of support rod 52 is fixedly connected to the outer wall of mounting plate 51, and the other end extends toward the external toothed ring 4. Locking plate 54 is rotatably sleeved on the outer wall of support rod 52, and locking plate 54 can swing freely around the axis of support rod 52;

[0050] A coil spring 53 is sleeved on the outer wall of the support rod 52. One end of the coil spring 53 is fixedly connected to the outer wall of the mounting plate 51, and the other end is fixedly connected to the outer wall of the locking plate 54. The coil spring 53 is always in an energy storage state, and its elastic force drives the front end of the locking plate 54 to always press against the outer teeth of the outer toothed ring 4.

[0051] When the outer toothed ring 4 rotates counterclockwise, the locking plate 54 slides on the back of the teeth of the outer toothed ring 4 and does not produce a locking effect; when the outer toothed ring 4 tends to rotate clockwise, the locking plate 54 immediately engages in the tooth groove of the outer toothed ring 4, preventing the outer toothed ring 4 from rotating clockwise, thereby realizing the one-way locking function.

[0052] like Figure 6As shown, the first stop includes a stop block 63 fixedly connected to the inner wall of the scale ring 6. The side of the stop block 63 facing the hook wrench 18 is fixedly connected to a second stop bar 64. The second stop bar 64 abuts against the outer wall of the handle of the hook wrench 18, serving as the positioning of the starting point of the hook wrench 18.

[0053] The stop block 63 is fixedly connected to the inner wall of the scale ring 6 and is located at the 0° mark of the scale ring 6. A stop lever 64 is fixedly connected to the side of the stop block 63 facing the handle of the hook wrench 18. The stop lever 64 is a cylindrical rod whose axis is perpendicular to the extension direction of the handle of the hook wrench 18.

[0054] When the scale ring 6 rotates to the appropriate position, the outer wall of the stop lever 64 abuts against one side wall of the handle of the hook wrench 18, thereby forming the starting reference position for the rotation of the hook wrench 18.

[0055] like Figure 6 As shown, the fixing device includes an extension plate 2 61 fixedly connected to the outer wall of the scale ring 6. The extension plate 2 61 is rotatably connected to a positioning bolt 2 62 by an internal thread. When the bottom end of the positioning bolt 2 62 abuts against the outer wall of the ring 2 3, it is used to fix the scale ring 6.

[0056] When it is necessary to fix the scale ring 6, the operator tightens the positioning bolt 2 62 so that the end of the positioning bolt 2 62 passes through the extension plate 2 61 and abuts tightly against the outer wall of the ring 2 3. The scale ring 6 is locked onto the ring 2 3 by friction, preventing accidental rotation of the scale ring 6 during use. When it is necessary to adjust the position of the scale ring 6, simply tighten the positioning bolt 2 62 in the opposite direction to release the abutment.

[0057] like Figure 6 As shown, the second stop includes an annular groove 31 opened in the inner wall of the second annular ring 3. A slider is slidably connected in the annular groove 31. A sliding plate 32 is fixedly connected to the top of the slider. The outer wall of the sliding plate 32 is fixedly connected to one end of the pointer 36. A stop bar 33 is fixedly connected to the inner wall of the sliding plate 32. The stop bar 33 is used to limit the rotation angle of the hook wrench 18.

[0058] The inner wall of the second ring 3 has an annular groove 31, which extends circumferentially along the inner wall of the second ring 3. The slider is slidably connected within the annular groove 31 and can slide freely along the circumference of the annular groove 31. A sliding plate 32 is fixedly connected to the top of the slider.

[0059] A pointer 36 is fixedly connected to the outer wall of the sliding plate 32. The end of the pointer 36 points to a scale line on the scale ring 6, indicating the current angular position of the stop. A stop lever 33 is fixedly connected to the inner wall of the sliding plate 32.

[0060] The stop lever 33 is a cylindrical rod whose axis is perpendicular to the extension direction of the handle of the hook wrench 18. When the operator slides the sliding plate 32 along the annular groove 31 to the target angle, the stop lever 33 is located on the other side of the handle of the hook wrench 18 and is used to abut against the other side wall of the handle of the hook wrench 18, thereby limiting the rotation termination position of the hook wrench 18.

[0061] like Figure 6 As shown, the positioning device includes an extension plate 34 fixedly connected to the outer wall of the sliding plate 32. The extension plate 34 is internally threaded and rotatably connected to a positioning bolt 35. The bottom end of the positioning bolt 35 faces the inner wall of the annular groove 31. When the positioning bolt 35 abuts against the inner wall of the annular groove 31, it is used to fix the position of the sliding plate 32.

[0062] Extension plate 34 is fixedly connected to the outer wall of sliding plate 32 and extends outward along the radial direction of sliding plate 32. A threaded through hole is provided on extension plate 34, and positioning bolt 35 is threaded into this threaded through hole.

[0063] When the position of stop 2 needs to be fixed, the operator tightens the positioning bolt 35 so that the end of the positioning bolt 35 passes through the extension plate 34 and abuts tightly against the inner wall of the annular groove 31. The sliding plate 32 and the slider are locked in the current position of the annular groove 31 by friction. When the angle position of stop 2 needs to be adjusted, the positioning bolt 35 is tightened in the opposite direction to release the abutment and then it can be slid along the annular groove 31 for adjustment.

[0064] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A bearing mounting device for a stacker crane's traveling wheel box, comprising a main shaft (1) and a mounting shaft (11) disposed at one end of the main shaft (1), wherein the diameter of the mounting shaft (11) is smaller than that of the main shaft (1), characterized in that: The outer wall of the mounting shaft (11) is fitted with a locking sleeve (12), the outer wall of the locking sleeve (12) has an opening, the bearing (13) is fitted onto the outer wall of the locking sleeve (12), the outer wall of the locking sleeve (12) is threaded with a locking ring (14), one end of the mounting shaft (11) has a threaded groove, the threaded groove is threaded with a locking nut (16), the outer wall of the locking nut (16) is threaded with a locking nut (17), a stop plate (15) is provided between the top end of the mounting shaft (11) and the locking nut (17), the stop plate (15) includes a sleeve plate fitted onto the locking nut (16) and an L-shaped plate fixedly connected to the top end of the sleeve plate, the corner of the L-shaped plate extends into the opening of the locking sleeve (12), and the locking ring (14) is provided with a hook-shaped wrench (18) that can push the locking ring (14) to rotate. The outer wall of the main shaft (1) is fitted with a ring one (2), and two connecting plates (21) are fixedly connected to the outer wall of the ring one (2). The ends of the two connecting plates (21) away from the ring one (2) are fixedly connected to a ring two (3). One end of the ring one (2) is provided with a rotatable external toothed ring (4). Four equally spaced square rods (22) penetrating the ring one (2) are slidably connected on the outer wall of the ring one (2). The bottom end of the square rods (22) is fixedly connected to a fan-shaped abutment plate (23). The external toothed ring (4) is reversed. When the clockwise rotation is performed, the fan-shaped abutment plate (23) can move toward the main shaft (1) and abut against the outer wall of the main shaft (1), so that the first ring (2) and the second ring (3) are arranged concentrically with the main shaft (1). When the external toothed ring (4) rotates clockwise, the fan-shaped abutment plate (23) can move toward the direction away from the main shaft (1). The outer wall of the first ring (2) is provided with a one-way locking device (5). The one-way locking device (5) is used to prevent the external toothed ring (4) from rotating clockwise when the fan-shaped abutment plate (23) abuts against the main shaft (1). The outer wall of the second ring (3) is rotatably connected to a scale ring (6) arranged concentrically with the second ring (3). The inner wall of the scale ring (6) is fixedly connected to a stop member. The stop member is located at the 0° position of the scale ring (6). The scale ring (6) is provided with a fixing device. When the scale ring (6) rotates, the stop member abuts against the outer wall of the hook wrench (18). The inner wall of the second ring (3) is provided with a movable stop member. The stop member is provided with a positioning device. The stop member can move along the inner wall of the second ring (3) to the required angle and be fixed by the positioning device. The stop member is used to block the rotation angle of the hook wrench (18).

2. The bearing installation device for the traveling wheel box of a stacker crane according to claim 1, characterized in that: One end of the square rod (22) is fixedly connected to a limiting plate (24), and a spring (25) is sleeved on the outer wall of the square rod (22). The two ends of the spring (25) abut against the bottom surface of the limiting plate (24) and the outer wall of the ring (2), respectively. The outer wall of the square rod (22) is fixedly connected to a push rod (26) facing the inner wall of the outer toothed ring (4). The inner wall of the outer toothed ring (4) is fixedly connected to four arc-shaped plates (41) corresponding to the push rods (26). The outer wall of the arc-shaped plates (41) abuts against the outer wall of the push rods (26).

3. The bearing installation device for the traveling wheel box of a stacker crane according to claim 1, characterized in that: The outer wall of the external toothed ring (4) is fixedly connected to an installation ring (42), the connecting plate (21) is provided with a relief groove (27), the inner wall of the relief groove (27) is provided with an installation groove (28), and one end of the installation ring (42) extends into the installation groove (28).

4. The bearing installation device for the traveling wheel box of a stacker crane according to claim 1, characterized in that: The one-way locking device (5) includes a mounting plate (51) fixedly connected to the outer wall of the ring (2). The outer wall of the mounting plate (51) is fixedly connected to a support rod (52) facing the outer toothed ring (4). The outer wall of the support rod (52) is rotatably sleeved with a locking plate (54). The outer wall of the support rod (52) is sleeved with a coil spring (53). The two ends of the coil spring (53) are fixedly connected to the outer wall of the mounting plate (51) and the outer wall of the locking plate (54), respectively.

5. The bearing installation device for the traveling wheel box of a stacker crane according to claim 1, characterized in that: The first stop includes a stop block (63) fixedly connected to the inner wall of the scale ring (6). The side of the stop block (63) facing the hook wrench (18) is fixedly connected to a second stop bar (64). The second stop bar (64) abuts against the outer wall of the handle of the hook wrench (18) as the positioning of the starting point of the hook wrench (18).

6. The bearing installation device for the traveling wheel box of a stacker crane according to claim 1, characterized in that: The fixing device includes an extension plate two (61) fixedly connected to the outer wall of the scale ring (6), and a positioning bolt two (62) is rotatably connected to the inner thread of the extension plate two (61). When the bottom end of the positioning bolt two (62) abuts against the outer wall of the ring two (3), it is used to fix the scale ring (6).

7. The bearing installation device for the traveling wheel box of a stacker crane according to claim 1, characterized in that: The second stop includes an annular groove (31) opened on the inner wall of the second annular ring (3). A slider is slidably connected in the annular groove (31). A sliding plate (32) is fixedly connected to the top of the slider. The outer wall of the sliding plate (32) is fixedly connected to one end of the pointer (36). A stop bar (33) is fixedly connected to the inner wall of the sliding plate (32). The stop bar (33) is used to limit the rotation angle of the hook wrench (18).

8. The bearing installation device for the traveling wheel box of a stacker crane according to claim 7, characterized in that: The positioning device includes an extension plate (34) fixedly connected to the outer wall of the sliding plate (32). The extension plate (34) is internally threaded and rotatably connected to a positioning bolt (35). The bottom end of the positioning bolt (35) faces the inner wall of the annular groove (31). When the positioning bolt (35) abuts against the inner wall of the annular groove (31), it is used to fix the position of the sliding plate (32).

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