Walking wheel assembly, moving trolley and cross-belt sorting machine

Abstract

The utility model discloses a road wheel subassembly, travelling car and cross belt sorter, wherein the road wheel subassembly includes connecting seat, the connecting seat is provided with connecting hole, the connecting seat includes two fork arm of clearance arrangement, the fork arm includes the first side face and the second side face that are located the connecting hole both ends, the first side face and the second side face are located on the connecting hole both ends, and the second side face is located on the connecting hole both ends. A connecting hole is formed in each fork arm, clamping openings are formed in the opposite faces of the two fork arms, the clamping openings extend from the first side faces of the fork arms to the other side faces of the fork arms by a certain distance, a supporting shaft with the axis perpendicular to the axis of the connecting hole is connected between the two fork arms, the two ends of the supporting shaft are clamped to the two clamping openings, and the supporting shaft is sleeved with a walking wheel. According to the utility model, the clamping ports are respectively arranged on the two fork arms, so that the two ends of the supporting shaft can be directly clamped at the two clamping ports to finish assembling after the supporting shaft and the walking wheel are assembled externally, and the assembling operation of the structure is simple and easy to realize.

Description

Technical Field

[0001] The utility model relates to the field of logistics sorting, in particular to a walking wheel assembly, a mobile trolley and a cross-belt sorting machine. Background Art

[0002] The cross-belt sorter is a special equipment used for logistics sorting. It moves the packages to different sorting grids for sorting by moving a circle of sorting carts along the track.

[0003] As shown in the utility model patent with authorization announcement number CN 217147462 U, running wheels are provided on the sorting trolley so that the sorting trolley can roll along the track.

[0004] However, in this structure, when assembling the travel wheel assembly, it is necessary to pass the bolts through the insertion holes on one side plate and the bearing holes of the travel wheel while aligning the bearing holes of the travel wheel with the insertion holes on the two side plates of the U-shaped seat. Then, it is necessary to make a limit sleeve located between the travel wheel and the side plate on the other side and concentric with them, and then pass the bolts through the limit sleeve and the side plate on the other side and fix the bolts with nuts or clips, which makes the assembly difficult. At the same time, the U-shaped seat of the existing travel wheel assembly is usually obtained by machining, which is expensive. Utility Model Content

[0005] The purpose of the utility model is to solve the above problems existing in the prior art and to provide a walking wheel assembly, a mobile trolley and a cross belt sorting machine.

[0006] The purpose of the utility model is achieved through the following technical solutions:

[0007] The walking wheel assembly includes a connecting seat, a connecting hole is provided on the connecting seat, the connecting seat includes two fork arms set in a gap, the fork arms include a first side surface and a second side surface located at two ends of the connecting hole, and a card interface is provided at the opposite surfaces of the two fork arms, and the card interface extends a certain distance from the first side surface of the fork arm to the other side surface, and a support shaft with an axis perpendicular to the axis of the connecting hole is connected between the two fork arms, and both ends of the support shaft are clamped at the two card interfaces, and a walking wheel is sleeved on the support shaft.

[0008] Preferably, in the walking wheel assembly, the connecting seat is injection molded.

[0009] Preferably, in the walking wheel assembly, reinforcing ribs are formed on the outer side of the connecting seat.

[0010] Preferably, in the walking wheel assembly, the card interface includes a first U-shaped groove portion and a second U-shaped groove portion, the first U-shaped groove portions of the two card interfaces are opposite to each other, and the groove width and groove depth of the first U-shaped groove portion are smaller than the groove width and groove depth of the second U-shaped groove portion.

[0011] Preferably, in the travel wheel assembly, a through hole is formed on the fork arm, which is concentric with the support shaft and communicated with the card interface, and both ends of the support shaft have protrusions that can be embedded in the through hole.

[0012] Preferably, in the travel wheel assembly, the support shaft comprises a core shaft and clamping sleeves mounted on both ends of the core shaft, and the distance between the two clamping sleeves matches the width of the inner ring of the bearing of the travel wheel.

[0013] Preferably, in the traveling wheel assembly, the core shaft and / or the clamping sleeve are injection molded.

[0014] Preferably, in the traveling wheel assembly, the core shaft comprises a hollow tube body, and a reinforcing plate is arranged in the center hole of the hollow tube body.

[0015] A mobile trolley comprises any one of the above-mentioned travel wheel assemblies.

[0016] A cross-belt sorter comprising a mobile trolley as described above.

[0017] The advantages of the technical solution of the utility model are mainly reflected in:

[0018] The utility model provides card interfaces on the two fork arms respectively, and after the support shaft and the travel wheel are assembled externally, the two ends of the support shaft can be directly carded at the two card interfaces to complete the assembly. The assembly operation of this structure is simple and easy to implement.

[0019] The connection seat and the support shaft of the utility model are injection molded, which is easier to mass produce and has lower cost than the connection seat obtained by machining. At the same time, the connection seat of this structure has better integrity and strength, which is conducive to improving support and stability.

[0020] The support shaft of the utility model is assembled by a plurality of components, which can facilitate the assembly of the traveling wheel and the limiting of the bearing, and is easy to realize the assembly.

[0021] Protrusions are arranged at both ends of the support shaft and limiting holes are arranged on the fork arm, so that after assembly, the position of the support shaft can be limited to a certain extent to prevent the support shaft from withdrawing from the plug interface. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a bottom view of the travel wheel assembly of the utility model;

[0023] Figure 2 It is a three-dimensional diagram of the connecting seat of the utility model;

[0024] Figure 3 It is a cross-sectional view of the travel wheel assembly of the utility model. DETAILED DESCRIPTION

[0025] The purpose, advantages and features of the present invention will be illustrated and explained through the non-limiting description of the following preferred embodiments. These embodiments are only typical examples of the application of the technical solution of the present invention, and any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of protection claimed by the present invention.

[0026] In the description of the scheme, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0027] Example 1

[0028] The travel wheel assembly disclosed by the utility model is described below in conjunction with the accompanying drawings. Figure 1 , Attachment Figure 2 As shown, it includes a connecting seat 100, which includes a pivoting portion 110, a connecting hole 111 is arranged at the pivoting portion 110, two fork arms 120 for maintaining a gap are arranged on one side of the pivoting portion 110, and the connecting seat 100 is approximately U-shaped as a whole.

[0029] As attached Figure 2 As shown, the fork arm 120 includes a first side surface 121 and a second side surface 122 located at both ends of the connecting hole 111, and a card interface 123 is provided at the opposite surfaces of the two fork arms 120, and the card interface 123 extends a certain distance from the first side surface 121 of the fork arm 120 to the other side surface, and the card interface 123 includes a first U-shaped groove portion 124 and a second U-shaped groove portion 125, and the first U-shaped groove portions 124 of the two card interfaces 123 are opposite, and the groove width and groove depth of the first U-shaped groove portion 124 are smaller than the groove width (the distance between the two opposite groove walls of the first and second U-shaped groove portions) and groove depth (the groove depth is the distance that the first and second U-shaped groove portions 125 extend from the first side surface 121 to the second side surface 122) of the second U-shaped groove portion 125. The support shaft 300 supports the shaft 300. Of course, the card interface 123 can also be other feasible shapes, which will not be repeated here.

[0030] As attached Figure 1 , Attachment Figure 3As shown, a support shaft 300 whose axis is perpendicular to the axis of the connecting hole 111 is connected between the two fork arms 120 , and two ends of the support shaft 300 are clamped at the two clamping interfaces 123 , and a walking wheel 500 is sleeved on the support shaft 300 .

[0031] As attached Figure 3 As shown, in order to facilitate the assembly of the walking wheel 500, the support shaft 300 includes a core shaft 310 and a clamping sleeve 320 mounted on both ends of the core shaft 310. The core shaft 310 can be a solid shaft. Preferably, in order to reduce the weight of the component, the core shaft 310 includes a hollow tube body 311, and a reinforcing plate 312 is arranged in the center hole of the hollow tube body 311. The two clamping sleeves 320 include a concentrically arranged tube portion 321 and an end plate 322. The inner diameter of the tube portion 321 matches the outer diameter of the core shaft 310, and the outer diameter of the tube portion 321 matches the notch width of the first U-shaped groove portion 124. The diameter of the end plate 322 is larger than the diameter of the tube portion 321 and matches the notch width of the second U-shaped groove portion 125. Such a structure can cooperate with the structure of the clamping groove, thereby better limiting the axial position of the support shaft 300 on the connecting seat 100. When the two clamping sleeves 320 are assembled on the core shaft 310 , the distance between them matches the width of the inner ring of the bearing 510 of the running wheel 500 .

[0032] During assembly, the travel wheel 500 can be sleeved on the mandrel 310 first, and then the two clamping sleeves 320 can be sleeved on both ends of the mandrel 310, and the clamping sleeves 320 and the mandrel 310 can be connected by interference fit. Of course, this is not necessary.

[0033] In order to facilitate processing, the connection seat 100, the core shaft 310 and / or the clamping sleeve 320 are processed by injection molding. The specific process of injection molding is a known technology and is not described here. At the same time, the outer side of the connection seat 100 is formed with a reinforcing rib 130 to increase the strength of the entire connection seat 100. The specific form of the reinforcing rib can be designed as needed and is not limited here.

[0034] As attached Figure 3 As shown, the support shaft 300 can be engaged at the card interface 123 in an interference fit manner. Furthermore, in order to reduce the risk of the support shaft 300 withdrawing from the card interface 123, a through hole 126 is formed on the fork arm 120, which is concentric with the support shaft 300 and connected to the card interface 123. Both ends of the support shaft 300 have 330 that can be embedded in the through hole 126. When the two ends of the support shaft 300 are engaged in the two card interfaces 123, the 330 extends into the through hole 126.

[0035] Example 2

[0036] This embodiment discloses a mobile vehicle, including a frame, to which the travel wheel assembly as described above is pivotally connected.

[0037] Example 3

[0038] This embodiment discloses a cross-belt sorting machine, comprising the mobile cart as described above.

[0039] There are many implementation methods of the utility model, and all technical solutions formed by equivalent transformation or equivalent transformation fall within the protection scope of the utility model.

Claims

1. A walking wheel assembly, comprising a connecting seat, a connecting hole being provided on the connecting seat, and two fork arms being provided with a gap, characterized in that: The fork arm includes a first side surface and a second side surface located at both ends of the connecting hole. A card interface is provided at the opposite surfaces of the two fork arms. The card interface extends a certain distance from the first side surface of the fork arm to the other side surface. A support shaft with an axis perpendicular to the axis of the connecting hole is connected between the two fork arms. Both ends of the support shaft are clamped at the two card interfaces, and walking wheels are sleeved on the support shaft.

2. The travel wheel assembly according to claim 1, characterized in that: The connecting seat is injection molded.

3. The travel wheel assembly according to claim 1, characterized in that: A reinforcing rib is formed on the outer side of the connecting seat.

4. The travel wheel assembly according to claim 1, characterized in that: The card interface includes a first U-shaped groove and a second U-shaped groove. The first U-shaped grooves of the two card interfaces are opposite to each other, and the groove width and groove depth of the first U-shaped groove are smaller than those of the second U-shaped groove.

5. The travel wheel assembly according to claim 1, characterized in that: A through hole is formed on the fork arm, which is concentric with the support shaft and communicated with the card interface. Both ends of the support shaft have convex parts that can be embedded in the through hole.

6. The travel wheel assembly according to any one of claims 1 to 5, characterized in that: The support shaft comprises a core shaft and clamping sleeves sleeved on both ends of the core shaft, and the distance between the two clamping sleeves matches the width of the inner ring of the bearing of the travel wheel.

7. The travel wheel assembly according to claim 6, characterized in that: The core shaft and / or the clamping sleeve are injection molded.

8. The travel wheel assembly according to claim 6, characterized in that: The core shaft comprises a hollow tube body, and a reinforcing plate is arranged in the central hole of the hollow tube body.

9. Mobile trolley, characterized by: It comprises a walking wheel assembly as described in any one of claims 1-8.

10. Cross-belt sorting machine, characterized by: Comprising the mobile cart as claimed in claim 9.

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