Novel stacker maintenance support device and method of detecting same

Abstract

This invention relates to the field of stacker crane maintenance technology, specifically to a novel stacker crane maintenance support device and its testing method. Installed on the stacker crane column, the device also includes a support unit located on one side of the column. The support unit includes a retractable movable rod internally, and a connecting seat is fixedly installed on one side of the support unit. A lifting drive mechanism is fixedly installed on one side of the stacker crane column, and guide rails are provided on both sides of the lifting drive mechanism. A locking mechanism is provided between the guide rails and the support unit. By setting the lifting drive mechanism and guide rails, different stopping positions of the stacker crane's loading platform can be matched. When the movable rod extends outward to the working position, it automatically drives the locking mechanism into a locking state, fixing the support unit relative to the guide rails. The locking is released when the movable rod retracts. This avoids the tedious manual locking operation during maintenance support and ensures that the support unit will not accidentally slip under load.

Description

Technical Field

[0001] This invention relates to the field of stacker crane maintenance technology, and in particular to a novel stacker crane maintenance support device and its testing method. Background Technology

[0002] Stacker cranes are core equipment in intelligent warehousing and logistics systems. Their loading platforms require maintenance, upkeep, and parts replacement during long-term use. In actual production and use, this often leads to the need to use motor-operated brakes to suspend the loading platform in one place for maintenance work, which poses a significant safety risk. When the loading platform stops at different heights due to a malfunction, the fixed support device often cannot effectively provide mechanical limits, and maintenance personnel can only rely on motor-operated brakes to suspend the loading platform in the air for work, which poses a significant safety hazard.

[0003] In the prior art, patent CN 218754899U discloses a maintenance support rod device for a loading platform of a heavy-duty stacker crane, comprising: a stacker crane loading platform, wherein the stacker crane loading platform is provided with a support rod mounting hole, a maintenance support rod is provided in the support rod mounting hole, the maintenance support rod passes through the support rod mounting hole, and the maintenance support rod can move axially along the support rod mounting hole; it also includes a limiting frame, the limiting frame is connected to the stacker crane loading platform, the limiting frame is provided with a set of limiting holes, the arrangement direction of the set of limiting holes is parallel to the axial direction of the maintenance support rod, the limiting holes include a first limiting hole and a second limiting hole, and the maintenance support rod is provided with a limiting rod, the shape of the limiting rod being adapted to the limiting hole.

[0004] The aforementioned structure is fixedly installed at a fixed height on the column and cannot be adjusted according to the actual stopping height of the loading platform. When the loading platform stops at different heights due to malfunction, the fixed support device often cannot effectively provide mechanical limit. Summary of the Invention

[0005] In view of this, the purpose of this invention is to propose a novel stacker crane maintenance support device and its testing method to solve the problem that fixed support devices often cannot effectively provide mechanical limits when the loading platform stops at different heights due to malfunctions, as it cannot be adjusted according to the actual stopping height of the loading platform.

[0006] Based on the above objectives, the present invention provides a novel stacker crane maintenance support device and its testing method, which is installed on the stacker crane column and also includes a support device disposed on one side of the stacker crane column. The support device includes a retractable movable rod disposed inside, and a connecting seat is fixedly installed on one side of the support device.

[0007] A lifting drive mechanism is fixedly installed on one side of the stacker column. The lifting drive mechanism drives the connecting seat to move along the height direction of the stacker column. Guide rail frames are provided on both sides of the lifting drive mechanism. The connecting seat and the guide rail frame are corresponding to each other. The guide rail frame is fixedly installed on one side of the stacker column.

[0008] A locking mechanism is provided between the guide rail frame and the support device, and the locking mechanism is linked to the movable rod.

[0009] When the movable rod extends outward to the working position, the support device restricts and detects the guide wheels of the stacker crane's loading platform. At the same time, the movable rod drives the locking mechanism into a locking state, fixing the support device and the guide rail frame relative to each other.

[0010] Preferably, the lifting drive mechanism includes a motor fixedly installed on one side of the stacker column, a lead screw fixedly connected to the output end of the motor, a nut seat sleeved on the outside of the lead screw, and the nut seat movably installed inside the connecting seat.

[0011] Preferably, the support device includes a support frame fixedly installed on one side of the connecting seat, a movable rod slidably installed inside the support frame, a guide groove is provided inside the support frame, an operating handle is inserted into the guide groove, one end of the operating handle is fixedly installed outside the movable rod, a limit handle passes through the outside of the support frame, and one end of the limit handle is inserted into the movable rod.

[0012] A contact block is fixedly installed on the outside of the movable rod. The contact block is arranged opposite to the operating handle. A long groove is opened on one side of the support frame to accommodate the movement of the contact block.

[0013] Preferably, the guide groove is an inverted U-shaped structure, the inside of the support frame is provided with a channel to accommodate the sliding of the movable rod, and a micro switch connected to the stacker crane is provided inside the support frame.

[0014] Preferably, the locking mechanism includes a locking slot on one side of the connecting seat that corresponds to the guide rail frame, and grooves corresponding to the locking slot are arrayed inside the guide rail frame;

[0015] A lever is slidably installed inside the connecting seat, and the lever corresponds to the contact block. A toothed plate is fixedly installed at the bottom end of the lever. A gear disk is also rotatably installed inside the connecting seat. The gear disk and the toothed plate mesh with each other. Two sets of arc grooves are mirror-shaped inside the gear disk. A connecting rod passes through the inside of each set of arc grooves. A snap-fit ​​block is fixedly installed at the end of the connecting rod. The snap-fit ​​block is slidably installed inside the connecting seat and passes through the groove and the slot.

[0016] Preferably, the lever engages with the contact block, and the inside of the lever and one side of the contact block are respectively provided with corresponding protrusions and grooves.

[0017] Preferably, the lever abuts against the contact block, the lever has a T-shaped structure, and a return spring is fixedly connected to the end of the lever.

[0018] The testing method for the novel stacker crane maintenance support device, applied to the aforementioned novel stacker crane maintenance support device, includes the following steps:

[0019] S101. As needed for maintenance, the support device is moved to the target position that matches the stopping height of the stacker crane's loading platform by rotating the control motor driven screw in the lifting drive mechanism.

[0020] S102. The operator manually controls the movable rod to extend outward. During the extension of the movable rod, the locking mechanism locks the support device and the guide rail frame.

[0021] S103. After the movable rod extends into place, its front end presses against the column guide wheel of the stacker crane loading platform, and at the same time triggers the micro switch.

[0022] S104. The micro switch sends the position signal to the stacker crane's control system, which then prohibits the stacker crane's loading platform from lifting and the stacker crane from moving horizontally.

[0023] S105. After the maintenance work is completed, the operator controls the movable lever to retract, the locking mechanism automatically unlocks, and the control system restores the stacker crane's normal movement permissions.

[0024] The beneficial effects of this invention are:

[0025] By setting up a lifting drive mechanism and guide rail frame, the support device can be moved to any required height under the control of the control system to match different stopping positions of the stacker crane's loading platform, without having to force the loading platform to a low position, thus expanding the scope of application for maintenance operations;

[0026] Meanwhile, by setting up a locking mechanism linked to the movable rod, when the movable rod extends outward to the working position, the locking mechanism is automatically driven into the locking state, fixing the support device and the guide rail frame relatively. When the movable rod retracts, the locking is released. Thus, when maintaining the support, the tedious manual locking operation is avoided, ensuring that the support device will not slip unexpectedly under load, and ensuring high safety and stability. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a front view of the overall structure of the present invention;

[0029] Figure 2 This is a side view of the overall structure of the present invention;

[0030] Figure 3 This is a schematic diagram of the connection structure between the connector and the support device of the present invention;

[0031] Figure 4 This is a schematic diagram of the internal structure of the connecting seat and support device of the present invention;

[0032] Figure 5 This is a three-dimensional structural diagram of the support device of the present invention;

[0033] Figure 6 This is a schematic diagram of the planar structure of the support device of the present invention;

[0034] Figure 7 This is a schematic diagram of the connection structure between the gear disk and the gear plate of the present invention.

[0035] The markings in the diagram are as follows: 1. Stacker crane column; 2. Lifting drive mechanism; 21. Motor; 22. Lead screw; 23. Nut seat; 3. Guide rail frame; 4. Support device; 41. Movable rod; 42. Support frame seat; 43. Guide groove; 44. Operating handle; 45. Limit handle; 46. Contact block; 5. Connecting seat; 6. Snap-fit ​​mechanism; 61. Lever; 62. Tooth plate; 63. Gear disk; 64. Arc groove; 65. Connecting rod; 66. Snap-fit ​​block; 67. Snap-fit ​​groove; 68. Groove. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments.

[0037] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the new type of stacker crane maintenance support device and its testing method are installed on the stacker crane column 1 and also include a support device 4 set on one side of the stacker crane column 1. The support device 4 includes a telescopic movable rod 41 inside and a connecting seat 5 fixedly installed on one side of the support device 4.

[0038] A lifting drive mechanism 2 is fixedly installed on one side of the stacker column 1. The lifting drive mechanism 2 drives the connecting seat 5 to move along the height direction of the stacker column 1. Guide rail frames 3 are provided on both sides of the lifting drive mechanism 2. The connecting seat 5 and the guide rail frame 3 correspond to each other. The guide rail frame 3 is fixedly installed on one side of the stacker column 1.

[0039] A locking mechanism 6 is provided between the guide rail frame 3 and the support device 4, and the locking mechanism 6 is linked with the movable rod 41.

[0040] When the movable rod 41 extends outward to the working position, the support device 4 restricts and detects the guide wheels of the stacker crane's loading platform. At the same time, the movable rod 41 drives the locking mechanism 6 to enter the locking state, fixing the support device 4 and the guide rail frame 3 relative to each other.

[0041] In this embodiment, by setting up the lifting drive mechanism 2 and the guide rail frame 3, the support device 4 can be moved to any required height under the control of the control system to match different stopping positions of the stacker crane loading platform. There is no need to force the loading platform to a low position, which expands the scope of application for maintenance operations.

[0042] Meanwhile, by setting a locking mechanism 6 that is linked to the movable rod 41, when the movable rod 41 extends outward to the working position, the locking mechanism 6 is automatically driven into the locking state, fixing the support device 4 and the guide rail frame 3 relative to each other. When the movable rod 41 retracts, the locking is released, thus avoiding the tedious manual operation of locking when maintaining the support and ensuring that the support device 4 will not slip unexpectedly under load.

[0043] As one implementation method, such as Figure 1 , Figure 2 and Figure 3 As shown, the lifting drive mechanism 2 includes a motor 21 fixedly installed on one side of the stacker column 1. The output end of the motor 21 is fixedly connected to a lead screw 22. A nut seat 23 is sleeved on the outside of the lead screw 22. The nut seat 23 is movably installed inside the connecting seat 5.

[0044] In this embodiment, the motor 21 drives the lead screw 22 and the nut seat 23 to move the connecting seat 5 and the entire support device 4. The lead screw 22 has a self-locking characteristic and, in conjunction with the guide rail frame 3, ensures smooth operation and accurate positioning.

[0045] As one implementation method, such as Figure 5 and Figure 6 As shown, the support device 4 includes a support frame 42 fixedly installed on one side of the connecting seat 5, a movable rod 41 slidably installed inside the support frame 42, a guide groove 43 is provided inside the support frame 42, an operating handle 44 is inserted inside the guide groove 43, one end of the operating handle 44 is fixedly installed outside the movable rod 41, a limit handle 45 passes through the outside of the support frame 42, and one end of the limit handle 45 is inserted into the movable rod 41;

[0046] A contact block 46 is fixedly installed on the outside of the movable rod 41. The contact block 46 is arranged opposite to the operating handle 44. A long groove is opened on one side of the support frame 42 to accommodate the movement of the contact block 46.

[0047] In this embodiment, during operation, the movable rod 41 extends from the diagonal sides of the left and right columns of the stacker crane and acts on the guide wheel of the stacker crane's loading platform column to achieve a mechanical limiting effect. The rotation of the maintenance movable rod 41 is limited by the limit handle 45, allowing the loading platform to be suspended at any suitable height for maintenance.

[0048] As one implementation method, such as Figure 5 and Figure 6 As shown, the guide groove 43 has an inverted U-shaped structure, the support frame 42 has a channel inside to accommodate the sliding of the movable rod 41, and a micro switch connected to the stacker crane is provided inside the support frame 42.

[0049] In this embodiment, the operating handle 44 controls the extension, rotation and retraction of the movable rod 41 through the inverted U-shaped guide groove 43, and achieves mechanical positioning in conjunction with the limit handle 45. When the movable rod 41 opens and closes, it triggers the micro switch to act, and transmits the signal back to the control system to control the start and stop of the stacker crane.

[0050] As one implementation method, such as Figure 3 , Figure 4 and Figure 7 As shown, the snap-fit ​​mechanism 6 includes a snap-fit ​​groove 67 on one side of the connecting seat 5 that corresponds to the guide rail frame 3, and grooves 68 corresponding to the snap-fit ​​groove 67 are arrayed inside the guide rail frame 3.

[0051] A lever 61 is slidably installed inside the connecting seat 5. The lever 61 corresponds to the contact block 46. A toothed plate 62 is fixedly installed at the bottom end of the lever 61. A gear disk 63 is also rotatably installed inside the connecting seat 5. The gear disk 63 meshes with the toothed plate 62. Two sets of arc grooves 64 are mirror-shaped inside the gear disk 63. A connecting rod 65 passes through the interior of each set of arc grooves 64. A locking block 66 is fixedly installed at the end of the connecting rod 65. The locking block 66 is slidably installed inside the connecting seat 5 and passes through the groove 68 and the slot 67.

[0052] In this embodiment, when the movable rod 41 extends, it drives the lever 61 on one side of the contact block 46 to move simultaneously. When the lever 61 moves, the toothed plate 62 at the bottom end meshes with the gear disk 63. After the gear disk 63 meshes and rotates, the internal arc groove 64 rotates. Combined with the action of the connecting rod 65, it drives the locking block 66 to extend out of the locking groove 67 in the connecting seat 5, thereby penetrating the groove 68 and the locking groove 67, which facilitates locking the support device 4 and the guide rail frame 3.

[0053] Furthermore, the locking block 66 will only be fully inserted into the slot 67 and groove 68 when the movable rod 41 is fully extended, the contact block 46 pushes the lever 61 and drives the toothed plate 62 to move a sufficient stroke; when the movable rod 41 is not in place, the locking block 66 is in a retracted state to avoid accidental locking due to vibration or accidental contact.

[0054] As one implementation method, such as Figure 4 and Figure 7 As shown, the lever 61 is engaged with the contact block 46, and the inside of the lever 61 and one side of the contact block 46 are respectively provided with corresponding protrusions and grooves.

[0055] In this embodiment, if the lever 61 is engaged with the contact block 46, when the movable lever 41 extends outward to the working position, it automatically drives the engagement mechanism 6 into a locking state, fixing the support device 4 and the guide rail frame 3 relative to each other. When the movable lever 41 retracts, the locking is released.

[0056] As one implementation method, such as Figure 4 and Figure 7 As shown, the lever 61 abuts against the contact block 46. The lever 61 has a T-shaped structure, and a return spring is fixedly connected to the end of the lever 61.

[0057] In this embodiment, if the lever 61 abuts against the contact block 46, the movable lever 41 can quickly engage and lock when it retracts. At the same time, by using the return spring to pull the lever 61 and the contact block 46, the movable lever 41 inside the support device 4 can be moved to the other end inside the support device 4 as a whole, and hidden in the corner space of the stacker crane, avoiding dust accumulation, bumps, or accidental operation of the exposed device.

[0058] The overall structure can be modularly installed on one side of the stacker crane column 1. By replacing or adjusting the length of the guide rail frame 3 and the spacing of the grooves 68, it can be adapted to stacker crane models with different height specifications.

[0059] This specification also provides an embodiment of a testing method for a novel stacker crane maintenance support device, comprising the following steps:

[0060] S101. As needed for maintenance, the control motor 21 inside the lifting drive mechanism 2 drives the lead screw 22 to rotate, moving the support device 4 to the target position that matches the stopping height of the stacker crane's loading platform.

[0061] S102, The operator manually controls the movable rod 41 to extend outward. During the extension of the movable rod 41, the locking mechanism 6 drives the support device 4 to lock the guide rail frame 3.

[0062] S103. After the movable rod 41 extends into place, its front end presses against the column guide wheel of the stacker crane loading platform, and at the same time triggers the micro switch.

[0063] S104. The micro switch sends the position signal to the stacker crane's control system, which then prohibits the stacker crane's loading platform from lifting and the stacker crane from moving horizontally.

[0064] S105. After the maintenance work is completed, the operator controls the movable lever 41 to retract, the locking mechanism 6 automatically unlocks, and the control system restores the stacker crane's normal movement permission.

[0065] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention (including the claims) is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in the details for the sake of brevity.

[0066] This invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A novel stacker crane maintenance support device, installed on the stacker crane column (1), characterized in that, It also includes a support device (4) set on one side of the stacker column (1), the support device (4) includes a telescopic movable rod (41) inside, and a connecting seat (5) is fixedly installed on one side of the support device (4). A lifting drive mechanism (2) is fixedly installed on one side of the stacker column (1). The lifting drive mechanism (2) drives the connecting seat (5) to move along the height direction of the stacker column (1). Guide rails (3) are provided on both sides of the lifting drive mechanism (2). The connecting seat (5) and the guide rails (3) correspond to each other. The guide rails (3) are fixedly installed on one side of the stacker column (1). A locking mechanism (6) is provided between the guide rail frame (3) and the support device (4), and the locking mechanism (6) is linked with the movable rod (41); When the movable rod (41) extends outward to the working position, the support device (4) restricts the detection of the guide wheel of the stacker crane loading platform. At the same time, the movable rod (41) drives the locking mechanism (6) to enter the locking state, fixing the support device (4) and the guide rail frame (3) relative to each other.

2. The novel stacker crane maintenance support device according to claim 1, characterized in that, The lifting drive mechanism (2) includes a motor (21) fixedly installed on one side of the stacker column (1). The output end of the motor (21) is fixedly connected to a lead screw (22). A nut seat (23) is sleeved on the outside of the lead screw (22). The nut seat (23) is movably installed inside the connecting seat (5).

3. The novel stacker crane maintenance support device according to claim 1, characterized in that, The support device (4) includes a support frame (42) fixedly installed on one side of the connecting seat (5), and a movable rod (41) slidably installed inside the support frame (42). A guide groove (43) is provided inside the support frame (42), and an operating handle (44) is inserted inside the guide groove (43). One end of the operating handle (44) is fixedly installed outside the movable rod (41), and a limit handle (45) passes through the outside of the support frame (42). One end of the limit handle (45) is inserted into the movable rod (41). The movable rod (41) is externally fixed with a contact block (46), which is opposite to the operating handle (44). A long groove is provided on one side of the support frame (42) to accommodate the movement of the contact block (46).

4. The novel stacker crane maintenance support device according to claim 3, characterized in that, The guide groove (43) has an inverted U-shaped structure. The support frame (42) has a channel inside to accommodate the sliding of the movable rod (41). The support frame (42) is equipped with a micro switch connected to the stacker.

5. The novel stacker crane maintenance support device according to claim 3, characterized in that, The snap-fit ​​mechanism (6) includes a snap-fit ​​groove (67) on one side of the connecting seat (5) corresponding to the guide rail frame (3), and grooves (68) corresponding to the snap-fit ​​groove (67) are arrayed inside the guide rail frame (3). A lever (61) is slidably installed inside the connecting seat (5). The lever (61) corresponds to the contact block (46). A toothed plate (62) is fixedly installed at the bottom end of the lever (61). A gear disk (63) is also rotatably installed inside the connecting seat (5). The gear disk (63) meshes with the toothed plate (62). Two sets of arc grooves (64) are mirror-shaped inside the gear disk (63). A connecting rod (65) passes through the interior of each of the two sets of arc grooves (64). A snap-fit ​​block (66) is fixedly installed at the end of the connecting rod (65). The snap-fit ​​block (66) is slidably installed inside the connecting seat (5) and passes through the groove (68) and the slot (67).

6. The novel stacker crane maintenance support device according to claim 5, characterized in that, The lever (61) engages with the contact block (46), and the inside of the lever (61) and one side of the contact block (46) are respectively provided with corresponding protrusions and grooves.

7. The novel stacker crane maintenance support device according to claim 5, characterized in that, The lever (61) abuts against the contact block (46). The lever (61) has a T-shaped structure, and a return spring is fixedly connected to the end of the lever (61).

8. A testing method for a novel stacker crane maintenance support device, wherein the novel stacker crane maintenance support device according to any one of claims 1-7 is characterized in that, Includes the following steps: S101. According to maintenance needs, the screw rod (22) is driven to rotate by the control motor (21) inside the lifting drive mechanism (2), and the support device (4) is moved to the target position that matches the stopping height of the stacker crane loading platform. S102, The operator manually controls the movable rod (41) to extend outward. During the extension process, the movable rod (41) drives the locking mechanism (6) to lock the support device (4) and the guide rail frame (3). S103. After the movable rod (41) extends into place, its front end presses against the column guide wheel of the stacker crane loading platform, and at the same time triggers the micro switch. S104. The micro switch sends the position signal to the stacker crane's control system, which then prohibits the stacker crane's loading platform from lifting and the stacker crane from moving horizontally. S105. After the maintenance work is completed, the operator controls the movable lever (41) to retract, the locking mechanism (6) automatically unlocks, and the control system restores the normal movement permission of the stacker crane.

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