Lower crossbeam walking structure of stacker

Abstract

The utility model discloses a kind of lower crossbeam walking structures of stacking machine, including lower crossbeam body, walking wheel box and box walking assembly being set in its both ends. Lower crossbeam body both ends are equipped with crossbeam flange plate;Walking wheel box includes box, wheel box end plate and wheel box flange plate, box bottom opening is arranged, wheel box flange plate is detachably connected with crossbeam flange plate by bolt, the quick replacement and maintenance of walking wheel box are realized. Walking assembly contains bearing with seat, walking wheel axle and walking wheel, is connected by expansion sleeve and wheel axle, and installation is convenient. Box side wall is equipped with mounting hole and bearing recess with seat, bearing with seat is equipped with boss and bearing perforation, and it is convenient for positioning and bolt fixing. Crossbeam flange plate and wheel box flange plate are matched by positioning lug and positioning recess and realize quick alignment, and can be further temporarily locked by self-locking pin and locking pin structure, improve assembly security and efficiency. The structure effectively reduces maintenance time, reduces the influence to equipment capacity.

Description

Technical Field

[0001] This utility model relates to the field of stacker crane technology, and in particular to a lower crossbeam traveling structure for a stacker crane. Background Technology

[0002] Stacker cranes are important equipment in automated warehouses for automated picking and placing of goods. Their structure mainly consists of two columns and upper and lower crossbeams. The two columns are connected to the upper and lower crossbeams by flanges, and the lower crossbeam is located below the two columns. Guide wheel assembly ensures that the stacker crane runs along the ground rail. The lower crossbeam bears most of the load from the stacker crane.

[0003] The lower crossbeam travel wheel box of a stacker crane is a core transmission component, and traditionally it is fixed by welding to the lower crossbeam frame. However, this design has the following drawbacks: due to the limited space on site, disassembly of internal components (such as bearings and gears) requires cutting; when the travel wheels malfunction, the equipment cannot be repaired quickly, and maintenance leads to a decrease in single-machine productivity, greatly reducing the time utilization rate of the equipment. Utility Model Content

[0004] This utility model provides a lower crossbeam traveling structure for a stacker crane, aiming to solve the problem that the existing stacker crane's lower crossbeam traveling wheel box is fixed by welding, which makes it difficult to repair when the traveling wheel box has problems, thus affecting the equipment utilization efficiency and reducing production capacity.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This utility model embodiment provides a lower crossbeam traveling structure for a stacker crane, including:

[0007] The lower crossbeam body has crossbeam flange plates at both ends along its length.

[0008] The traveling wheel box includes a wheel box flange plate; the wheel box flange plate is detachably connected to the crossbeam flange plate.

[0009] In one embodiment, a positioning component for mutual engagement is provided between the wheel box flange plate and the crossbeam flange plate.

[0010] In one embodiment, the positioning component includes a positioning groove and a positioning protrusion that cooperate with each other; the positioning groove is disposed on the crossbeam flange plate, and the positioning protrusion is fixedly disposed on the wheel box flange plate.

[0011] In one embodiment, two positioning grooves are provided.

[0012] In one embodiment, the two positioning grooves are arranged along the vertical direction, and the crossbeam flange plate is provided with a connecting hole connecting the two positioning grooves;

[0013] The connecting hole is provided with two locking pins facing away from each other; the positioning protrusion is provided with a locking hole that mates with the connecting hole.

[0014] A pusher is provided in the connecting hole. When the positioning protrusion engages with the positioning groove, the pusher simultaneously pushes the two locking pins into their respective locking holes.

[0015] In one embodiment, the sidewall of the communicating hole is provided with a sidewall hole communicating with the outside; the pushing member is a self-locking pin slidably disposed in the sidewall hole; when the positioning protrusion engages with the positioning groove, the self-locking pin is inserted between the two locking pins, and the two locking pins are respectively inserted into their respective corresponding locking holes.

[0016] In one embodiment, the wheel box further includes a housing, and the walking assembly includes seated bearings detachably disposed on the side walls of the housing in the thickness direction, a walking wheel axle disposed on the two seated bearings, and a walking wheel rotatably disposed on the walking wheel axle.

[0017] In one embodiment, an expansion sleeve is provided on the axle of the traveling wheel, and the traveling wheel is fixedly disposed around the expansion sleeve.

[0018] In one embodiment, mounting holes are provided through the side walls on both sides of the box body in the thickness direction, and fixing holes are provided through the periphery of the mounting holes;

[0019] The end face of the bearing with a mounting plate is provided with a boss that mates with the mounting hole, and the periphery of the boss is provided with a mounting plate through hole that mates with the fixing hole.

[0020] In one embodiment, the outer side walls on both sides of the housing in the thickness direction are provided with mounting grooves that mate with the contour of the mounting bearing.

[0021] The advantages of this utility model compared with the prior art are as follows: The walking wheel box in this utility model is detachably connected to the crossbeam flange plate of the lower crossbeam body through the wheel box flange plate, which facilitates the removal of the walking wheel box. Therefore, when the walking wheel box has a problem, it can be directly removed and replaced with a new walking wheel box, achieving the purpose of quick replacement of the walking wheel box, reducing the maintenance time of the stacker crane and reducing the impact on equipment production capacity.

[0022] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model, it can be implemented according to the contents of the specification. In order to make the above and other objects, features and advantages of this utility model more obvious and understandable, the following are preferred embodiments, which are described in detail below. Attached Figure Description

[0023] Figure 1 A three-dimensional structural diagram of the lower crossbeam traveling structure of a stacker crane provided for an embodiment of this utility model;

[0024] Figure 2 for Figure 1 A magnified view of a portion of the image;

[0025] Figure 3 A three-dimensional structural diagram of the traveling wheel box of the lower crossbeam traveling structure of a stacker crane provided for an embodiment of this utility model;

[0026] Figure 4 An exploded view of the traveling wheel box and traveling assembly of the lower crossbeam traveling structure of a stacker crane, provided for an embodiment of this utility model;

[0027] Figure 5 A three-dimensional structural diagram of a bearing-mounted structure of the lower crossbeam traveling structure of a stacker crane provided for an embodiment of this utility model;

[0028] Figure 6 A cross-sectional view of the traveling wheel box and traveling assembly of the lower crossbeam traveling structure of a stacker crane provided for an embodiment of this utility model;

[0029] Figure 7 A cross-sectional view of the connecting hole of the lower crossbeam traveling structure of a stacker crane provided in an embodiment of this utility model;

[0030] Figure 8 for Figure 7 A magnified view of a portion of region B in the middle.

[0031] Figure label:

[0032] 1. Lower crossbeam body; 11. Crossbeam flange plate; 111. Positioning groove; 112. Connecting hole; 113. Locking pin; 114. Side wall hole; 1141. Circumferential hole; 115. Pushing component; 1151. Insertion head; 1152. Limiting ring.

[0033] 2. Wheel box, 21. Box body, 22. Wheel box end plate, 221. Observation window, 23. Wheel box flange plate, 231. Positioning protrusion, 232. Chamfered structure, 233. Locking hole, 24. Mounting hole, 25. Fixing hole, 26. Seat groove, 27. Lifting ring;

[0034] 3. Walking assembly, 31. Bearing with seat, 311. Boss, 312. Through hole with seat, 32. Walking wheel axle, 33. Walking wheel, 34. Expansion sleeve. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0036] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0037] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0038] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0039] Please see Figures 1 to 4 This utility model embodiment provides a lower crossbeam traveling structure for a stacker crane, including a lower crossbeam body 1, traveling wheel boxes 2 disposed at both ends of the lower crossbeam body 1, and traveling components 3 disposed within the traveling wheel boxes 2.

[0040] The lower crossbeam body 1 has crossbeam flange plates 11 at both ends along its length.

[0041] The wheel box 2 includes a box body 21, a wheel box end plate 22, and a wheel box flange plate 23; the lower end of the box body 21 is provided with an opening; the wheel box end plate 22 is provided on one side of the box body 21, and the wheel box flange plate 23 is fixedly provided on the other side of the box body 21; the wheel box flange plate 23 is detachably connected to the crossbeam flange plate 11 by bolts.

[0042] The walking assembly 3 is installed inside the walking wheel box 2.

[0043] In this application, the traveling wheel box 2 is detachably connected to the crossbeam flange plate 11 of the lower crossbeam body 1 via the wheel box flange plate 23, facilitating the removal and installation of the traveling wheel box 2. Therefore, when a problem occurs with the traveling wheel box 2, it can be directly removed and replaced with a new one, achieving rapid replacement of the traveling wheel box 2, reducing the stacker crane's maintenance time and minimizing the impact on equipment capacity. Furthermore, the removed traveling wheel box 2 has an opening at its bottom, facilitating the inspection and replacement of internal parts.

[0044] In one embodiment, a positioning component for mutual engagement is provided between the wheel box flange plate 23 and the crossbeam flange plate 11.

[0045] A matching positioning assembly is provided between the wheel box flange plate 23 and the crossbeam flange plate 11, enabling the wheel box flange plate 23 and the crossbeam flange plate 11 to be quickly aligned, thereby improving the installation efficiency between the wheel box flange plate 23 and the crossbeam flange plate 11.

[0046] In a further embodiment, such as Figure 2 As shown, the positioning component includes a positioning groove 111 and a positioning protrusion 231 that cooperate with each other; the positioning groove 111 is disposed on the crossbeam flange plate 11, and the positioning protrusion 231 is fixedly disposed on the wheel box flange plate 23.

[0047] To facilitate the fixed installation between the crossbeam flange plate 11 and the wheel box flange plate 23, a positioning protrusion 231 is provided on the wheel box flange plate 23. Through the cooperation between the positioning protrusion 231 and the positioning groove 111, the wheel box flange plate 23 and the crossbeam flange plate 11 can be quickly aligned, improving assembly efficiency. In addition, in this embodiment, in order to allow the positioning protrusion 231 to be inserted into the positioning groove 111 more quickly, a chamfered structure 232 is provided on the edge of the positioning protrusion 231, so that the positioning protrusion 231 can be inserted into the positioning groove 111 more quickly, further improving the assembly efficiency of the wheel box 2 and the lower crossbeam body 1.

[0048] In one embodiment, two positioning grooves 111 are provided. Correspondingly, positioning protrusions 231 adapted to the two positioning grooves 111 are provided on the wheel box flange plate 23.

[0049] By using the two positioning grooves 111 and the positioning protrusions 231, the position between the wheel box flange plate 23 and the crossbeam flange plate 11 can be positioned more accurately.

[0050] In another embodiment, reference is made to Figure 7 and Figure 8 The two positioning grooves 111 are arranged in a vertical direction, and the crossbeam flange plate 11 is provided with a connecting hole 112 that connects the two positioning grooves 111.

[0051] The connecting hole 112 is provided with two locking pins 113 facing away from each other; the positioning protrusion 231 is provided with a locking hole 233 that cooperates with the connecting hole 112;

[0052] A pusher 115 is provided in the connecting hole 112. When the positioning protrusion 231 cooperates with the positioning groove 111, the pusher 115 simultaneously pushes the two locking pins 113 into their respective locking holes 233.

[0053] In this embodiment, the pusher 115 simultaneously pushes the locking pin 113 to move, so that when the positioning protrusion 231 and the positioning groove 111 are engaged, the locking pin 113 can be inserted into the locking hole 233 of the two positioning protrusions 231. The locking pin 113 can limit the positioning protrusion 231 and prevent the positioning protrusion 231 from disengaging from the positioning groove 111. Thus, when assembling the wheel box 2, the wheel box flange plate 23 and the crossbeam flange plate 11 can be temporarily fixed together, making assembly more convenient and safer.

[0054] In a further embodiment, such as Figure 8 As shown, the sidewall of the connecting hole 112 is provided with a sidewall hole 114 communicating with the outside; the pushing member 115 is a self-locking pin slidably disposed in the sidewall hole 114; when the positioning protrusion 231 engages with the positioning groove 111, the self-locking pin is inserted between the two locking pins 113, and the two locking pins 113 are respectively inserted into their respective locking holes 233. A circumferential hole 1141 is provided inside the sidewall hole 114, and a limiting ring 1152 that slides in the circumferential hole 1141 is provided in the circumferential direction of the self-locking pin.

[0055] Specifically, the two locking pins 113 are of the same length, and the side wall hole 114 is located in the middle of the connecting hole 112. Both ends of the locking pin 113 are arc-shaped, and the end of the self-locking pin near the connecting hole 112 is conical.

[0056] The pusher 115 can be configured as a spring or other structures. In this embodiment, the pusher 115 is configured as a self-locking pin. When the self-locking pin is inserted between the two locking pins 113, the self-locking pin will simultaneously push the two locking pins 113 to move in opposite directions, so that the end of the self-locking pin abuts against the locking holes 233 at both ends of the connecting hole 112. At this time, the two locking pins 113 and the self-locking pin form a self-locking structure in the connecting hole 112, so that the locking pin 113 can be firmly pressed against the locking hole 233, thereby preventing the positioning protrusion 231 from disengaging from the positioning groove 111.

[0057] In use, the self-locking pin can be used to first fix the positioning groove 111 and the positioning protrusion 231 together. After the crossbeam flange plate 11 and the wheel box flange plate 23 are fixed together with bolts, it is convenient to fix the crossbeam flange plate 11 and the wheel box flange plate 23 together. Then, the self-locking pin can be pulled out from between the two locking pins 113, thus releasing the lock. Alternatively, when removing the travel wheel box 2, the self-locking pin can be inserted between the two locking pins 113 to fix the positioning groove 111 and the positioning protrusion 231 together. Then, the bolts connecting the crossbeam flange plate 11 and the wheel box flange plate 23 can be removed. Then, the self-locking pin can be pulled out from between the two locking pins 113, thus releasing the lock. The travel wheel box 2 can then be separated from the lower crossbeam body 1, which can effectively prevent the travel wheel box 2 from suddenly falling off after the last bolt connecting the crossbeam flange plate 11 and the wheel box flange plate 23 is removed, making it safer to use.

[0058] Therefore, in order to facilitate the insertion and removal of the self-locking pin, a plug-in head 1151 is provided on the section of the self-locking pin away from the connecting hole 112. The circumferential side wall of the plug-in head 1151 is concave, which makes it easy to insert and remove the self-locking pin by hand.

[0059] In a further embodiment, such as Figure 4 As shown, both the beam flange plate 11 and the wheel box flange plate 23 are provided with several through holes to facilitate the fixing of the beam flange plate 11 and the wheel box flange plate 23 together with bolts. In this embodiment, there are six through holes, which are divided into two groups. The two groups are respectively set in the width direction of the beam flange plate 11 and the wheel box flange plate 23, and the through holes in each group are set in the vertical direction.

[0060] In a further embodiment, such as Figure 4 As shown, the wheel box end plate 22 is fixedly connected to the box body 21 on both sides in the width direction by bolts. An observation window 221 is provided on the wheel box end plate 22. Two lifting rings 27 are provided on the top of the box body 21.

[0061] The observation window 221 facilitates observation of the internal condition of the wheel box 2, enabling timely identification of the cause of malfunctions and improving maintenance efficiency. It also increases the internal heat dissipation area of ​​the wheel box 2, enhancing the heat dissipation effect of the walking assembly 3. The lifting ring 27 facilitates the replacement and maintenance of the wheel box 2.

[0062] In a further embodiment, the walking assembly 3 includes detachable bearings 31 mounted on the side walls of the housing 21 in the thickness direction, a walking wheel axle 32 mounted on the two bearings 31, and a walking wheel 33 rotatably mounted on the walking wheel axle 32.

[0063] The walking assembly 3 in this application consists of a seated bearing 31, a walking wheel axle 32, and a walking wheel 33, and has the characteristics of simple structure and convenient assembly.

[0064] In one embodiment, such as Figure 5 and Figure 6 As shown, an expansion sleeve 34 is provided on the walking wheel axle 32, and the walking wheel 33 is fixedly disposed on the periphery of the expansion sleeve 34.

[0065] The expansion sleeve 34 does not require keyway machining and can be assembled with the walking wheel axle 32 by bolt fastening. It features convenient installation, low tolerance requirements, and flexible disassembly.

[0066] In one embodiment, mounting holes 24 are provided through the side walls on both sides of the housing 21 in the thickness direction, and fixing holes 25 are provided through the periphery of the mounting holes 24; the end face of the bearing 31 with seat is provided with a boss 311 that mates with the mounting holes 24, and the periphery of the boss 311 is provided with a seat through hole 312 that mates with the fixing holes 25.

[0067] In this application, to facilitate quick assembly and disassembly of the mounted bearing 31, the boss 311 is shaped to match the mounting hole 24. The mounting hole 24 is circular, and the boss 311 is annular, allowing the boss 311 to be directly installed within the mounting hole 24, thus improving assembly efficiency. Simultaneously, mounting holes 24 are provided on the side wall of the housing 21, and mounting through holes 312 are provided on the mounted bearing 31, facilitating the bolt-fixed connection between the mounted bearing 31 and the housing 21, thus simplifying maintenance and assembly.

[0068] The outer side walls on both sides of the housing 21 in the thickness direction are provided with mounting grooves 26 that match the contour of the mounting bearing 31.

[0069] The mounting groove 26 is adapted to the outer contour of the mounting bearing 31, allowing the mounting bearing 31 to fit into the mounting groove 26 during assembly, facilitating assembly. Simultaneously, the mounting groove 26 provides a limiting function for the mounting bearing 31, preventing it from rotating circumferentially. In this embodiment, the outer contour of the mounting bearing 31 is square, and correspondingly, the mounting groove 26 is also square.

[0070] In summary, the travel wheel box 2 in this application is detachably connected to the crossbeam flange plate 11 of the lower crossbeam body 1 via the wheel box flange plate 23, which facilitates the removal of the travel wheel box 2. Thus, when the travel wheel box 2 malfunctions, it can be directly removed and replaced with a new travel wheel box 2, achieving the purpose of quickly replacing the travel wheel box 2, reducing the maintenance time of the stacker crane, and minimizing the impact on equipment capacity.

[0071] To facilitate quick assembly and disassembly of the mounted bearing 31, the boss 311 is shaped to match the mounting hole 24, allowing the boss 311 to be directly installed within the mounting hole 24 and improving assembly efficiency. Simultaneously, mounting holes 24 are provided on the side wall of the housing 21, and mounting through holes 312 are provided on the mounted bearing 31, facilitating the bolt-fixed connection between the mounted bearing 31 and the housing 21, further simplifying maintenance and assembly.

[0072] In addition, to facilitate the fixed installation between the crossbeam flange plate 11 and the wheel box flange plate 23, a positioning protrusion 231 is provided on the wheel box flange plate 23. Through the cooperation between the positioning protrusion 231 and the positioning groove 111, the wheel box flange plate 23 and the crossbeam flange plate 11 can be quickly aligned, thereby improving the assembly efficiency.

[0073] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A lower crossbeam walking structure of a stacker, characterized in that, include: The lower crossbeam body has crossbeam flange plates at both ends along its length. A traveling wheel box, the traveling wheel box including a wheel box flange plate; the wheel box flange plate is detachably connected to a crossbeam flange plate; A walking assembly, wherein the walking assembly is disposed within the walking wheel box.

2. The lower crossbeam walking structure of the stacker according to claim 1, characterized in that, A positioning assembly for mutual engagement is provided between the wheel box flange plate and the crossbeam flange plate.

3. The lower crossbeam traveling structure of the stacker crane according to claim 2, characterized in that, The positioning component includes a positioning groove and a positioning protrusion that cooperate with each other; the positioning groove is disposed on the crossbeam flange plate, and the positioning protrusion is fixedly disposed on the wheel box flange plate.

4. The lower crossbeam traveling structure of the stacker crane according to claim 3, characterized in that, There are two positioning grooves.

5. The lower crossbeam traveling structure of the stacker crane according to claim 4, characterized in that, The two positioning grooves are arranged along the vertical direction, and the crossbeam flange plate is provided with a connecting hole that connects the two positioning grooves; The connecting hole is provided with two locking pins facing away from each other; the positioning protrusion is provided with a locking hole that mates with the connecting hole. A pusher is provided in the connecting hole. When the positioning protrusion engages with the positioning groove, the pusher simultaneously pushes the two locking pins into their respective locking holes.

6. The lower crossbeam traveling structure of the stacker crane according to claim 5, characterized in that, The sidewall of the connecting hole is provided with a sidewall hole that communicates with the outside; the pushing member is a self-locking pin that is slidably disposed in the sidewall hole; when the positioning protrusion cooperates with the positioning groove, the self-locking pin is inserted between the two locking pins, and the two locking pins are respectively inserted into their respective corresponding locking holes.

7. The lower crossbeam traveling structure of the stacker crane according to any one of claims 1 to 6, characterized in that, The wheel box also includes a housing, and the walking assembly includes seated bearings detachably mounted on the two side walls in the thickness direction of the housing, a walking wheel axle mounted on the two seated bearings, and a walking wheel rotatably mounted on the walking wheel axle.

8. The lower crossbeam traveling structure of the stacker crane according to claim 7, characterized in that, An expansion sleeve is provided on the axle of the walking wheel, and the walking wheel is fixedly disposed around the expansion sleeve.

9. The lower crossbeam traveling structure of the stacker crane according to claim 7, characterized in that, Mounting holes are provided through the side walls on both sides of the box body in the thickness direction, and fixing holes are provided through the periphery of the mounting holes. The end face of the bearing with a mounting plate is provided with a boss that mates with the mounting hole, and the periphery of the boss is provided with a mounting plate through hole that mates with the fixing hole.

10. The lower crossbeam traveling structure of the stacker crane according to claim 7, characterized in that, The outer side walls on both sides of the housing in the thickness direction are provided with mounting grooves that match the contour of the mounting bearing.

Images