Riding wheel seat convenient to disassemble and assemble

Abstract

The riding wheel seat convenient to disassemble and assemble comprises a base and a rotating shaft, the base is provided with a first supporting table and a second supporting table, the first supporting table is provided with a limiting matching hole, the second supporting table is provided with a penetrating hole, the side wall of the limiting matching hole is provided with an arc-shaped face and a limiting plane which are connected with each other, and the rotating shaft is arranged on the arc-shaped face. A limiting part is arranged at one end of the rotating shaft, the limiting part is matched with the limiting matching hole, the limiting part is provided with an abutting plane attached to the limiting plane, and the other end of the rotating shaft is matched with the penetrating hole. Compared with the prior art, the structure is simple, the rotating shaft can be fully limited, and disassembly and assembly are more convenient and faster.

Description

Technical Field

[0001] This utility model relates to the technical field of mixer truck parts, specifically to a roller support that is easy to disassemble and assemble. Background Technology

[0002] The mixing drum of a concrete mixer truck is the mechanical component that loads and mixes concrete. It performs the specific function of crushing and mixing concrete through its own rotation and the combined action of the spiral blades inside the mixing drum. Due to its large size and weight, the front end of the concrete mixing drum in a concrete mixer truck is generally supported by rollers on a roller seat that can rotate with it.

[0003] Traditional roller support structure as shown in the attached figure Figure 4 As shown, it mainly consists of a base 1', a rotating shaft 2', and a support roller. To prevent the rotating shaft 2' from rotating during use and to ensure smoother rotation of the support roller, a limiting part 21' needs to be added to the front end of the rotating shaft 2', and a limiting block 11' is welded to the side of the base 1' corresponding to the limiting part 21'. The rotation of the rotating shaft 2' is restricted by the limiting block 11' abutting against the limiting part 21'. However, the above structure not only requires more assembly time but also increases the length of the rotating shaft. Furthermore, gaps are easily generated between the rotating shaft and the mating hole of the base, which affects the mating stability of the rotating shaft and thus reduces the service life of the support roller seat.

[0004] In view of this, the applicant conducted in-depth research on the above-mentioned issues, which led to this case. Summary of the Invention

[0005] The main purpose of this utility model is to provide a simple structure that can fully limit the rotation of the shaft and is more convenient and quick to assemble and disassemble.

[0006] To achieve the above objectives, the solution of this utility model is:

[0007] A roller support that is easy to assemble and disassemble includes a base and a rotating shaft. The base is provided with a first support platform and a second support platform. The first support platform is provided with a limiting mating hole, and the second support platform is provided with a through hole. The side wall of the limiting mating hole is provided with an interconnected arc-shaped surface and a limiting plane. One end of the rotating shaft is provided with a limiting part that mates with the limiting mating hole. The limiting part is provided with a top-abutting plane that fits against the limiting plane. The other end of the rotating shaft mates with the through hole.

[0008] Furthermore, the rotating shaft also includes a threaded portion and a connecting portion, with the threaded portion and the limiting portion connected by the connecting portion.

[0009] Furthermore, the diameter of the limiting part is larger than the diameter of the connecting part, and the diameter of the connecting part is larger than the diameter of the threaded part.

[0010] Furthermore, the threaded portion is provided with a snap ring for threaded connection.

[0011] Furthermore, the base is provided with strip-shaped holes.

[0012] Furthermore, the strip-shaped holes are located at the four corners of the base.

[0013] Furthermore, threaded holes are provided on the first support platform and the second support platform.

[0014] With the above structure, this new invention only requires inserting the threaded part of the rotating shaft directly into the direction of the second support platform along the first support platform, and then using a retaining ring to fix the rotating shaft, thus completing the installation. Compared with the prior art, the advantages are that this invention can save the time of welding the limiting block during assembly, greatly improving assembly efficiency. It also simplifies the overall structure of the roller support frame and reduces costs. Furthermore, the end of the rotating shaft can perfectly fit with the limiting hole, making the shaft installation more secure, further improving the rotational stability of the roller support, and extending the service life of the roller support seat. Attached Figure Description

[0015] Figure 1 This is a three-dimensional view of the external structure of this utility model.

[0016] Figure 2 This is another perspective view of the external structure of this utility model.

[0017] Figure 3 This is a cross-sectional structural diagram of the present invention.

[0018] Figure 4 This is a three-dimensional view of the external structure of the existing roller support frame.

[0019] In the figure: base 1, first support platform 11, second support platform 12, limiting mating hole 13, arc surface 131, limiting plane 132, through hole 14, strip hole 15, threaded hole 16, rotating shaft 2, limiting part 21, abutting plane 211, connecting part 22, threaded part 23, retaining ring 3. Detailed Implementation

[0020] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0021] like Figure 1-3As shown, a roller support that is easy to assemble and disassemble includes a base 1 and a rotating shaft 2. The base 1 has a first support platform 11 and a second support platform 12 symmetrically arranged. The first support platform 11 has a transversely penetrating limiting mating hole 13, and the second support platform 12 has a transversely penetrating through hole 14. The limiting mating hole 13 and the through hole 14 are coaxially arranged. The side wall of the limiting mating hole 13 has an interconnected arc-shaped surface 131 and a limiting plane 132. The rotating shaft 2 includes a limiting part 21, a connecting part 22, and a threaded part 23 connected in sequence. The limiting part 21 engages with the limiting mating hole 13. The threaded part 23 of the rotating shaft 2 passes through the through hole 14. The connecting part 22 is used to install the support roller. The limiting part 21 has an abutting surface 211 that fits against the limiting plane 132. The abutting surface 211 fits against the limiting plane 132 to limit the rotation of the rotating shaft 2. The limiting part 21 can precisely engage with the limiting mating hole 13, reducing the clearance between the rotating shaft 2 and the limiting mating hole 13, making the rotating shaft 2 more securely installed and preventing the rotating shaft 2 from vibrating when the support roller rotates.

[0022] In this embodiment, the diameter of the limiting part 21 is larger than the diameter of the connecting part 22, the diameter of the connecting part 22 is larger than the diameter of the threaded part 23, and the diameter of the limiting mating hole 13 is larger than the diameter of the through hole 14. This facilitates the assembly of the rotating shaft 2 with the first support platform 11 and the second support platform 12, improving assembly efficiency. Furthermore, abutting boss is formed between the connecting part 22 and the threaded part 23, which can abut against the side of the second support platform 12. Then, a threaded retaining ring 3 is installed on the threaded part 23 to limit the axial direction of the rotating shaft 2.

[0023] In this embodiment, the base 1 is provided with a strip hole 15. Bolts are used to pass through the strip hole 15 to install the base 1 on the frame of the mixer truck. The strip hole 15 is located at the four corners of the base 1, so that the base 1 is subjected to more even force after installation and the installation is more secure.

[0024] In this embodiment, the first support platform 11 and the second support platform 12 are provided with symmetrically arranged threaded holes 16. The threaded holes 16 are used to lock the dust cover, which can play a role in preventing dust and improving the service life of this utility model.

[0025] With the above structure, this new invention only requires inserting the threaded portion 23 of the rotating shaft 2 directly along the first support platform 11 towards the second support platform 12, and then using the retaining ring 3 to fix the rotating shaft 2, thus completing the installation. Compared with the prior art, the advantages are that this invention can save the time of welding the limiting block during assembly, greatly improving assembly efficiency. It also simplifies the overall structure of the roller support frame and reduces costs. Furthermore, the end of the rotating shaft 2 can perfectly fit with the limiting hole 13, making the installation of the rotating shaft 2 more secure, further improving the rotational stability of the roller support, and extending the service life of the roller support seat.

[0026] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. A wheel support seat which is easy to assemble and disassemble, characterized in that, The base is provided with a first supporting table and a second supporting table, the first supporting table is provided with a limiting fitting hole, the second supporting table is provided with a through hole, the side wall of the limiting fitting hole is provided with an arc surface and a limiting plane which are connected with each other, one end of the rotating shaft is provided with a limiting part which is matched with the limiting fitting hole, the limiting part is provided with an abutting plane which is matched with the limiting plane, and the other end of the rotating shaft is matched with the through hole.

2. The idler wheel carrier of claim 1, wherein, The rotating shaft further comprises a threaded part and a connecting part, and the threaded part and the limiting part are connected through the connecting part.

3. A roller stand according to claim 2, wherein The diameter size of the limiting part is larger than that of the connecting part, and the diameter size of the connecting part is larger than that of the threaded part.

4. The easily removable roller stand as claimed in claim 2, wherein, The threaded part is provided with a snap ring which is threadedly connected.

5. The idler wheel carrier of claim 1, wherein: The base is provided with a strip-shaped hole.

6. A roller stand according to claim 5, wherein The strip-shaped hole is arranged on four corners of the base.

7. The easily removable roller stand as claimed in claim 1, wherein, The first supporting table and the second supporting table are provided with threaded holes.

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