Bridge tube brake flange plate structure for tricycle
By designing a three-wheeled vehicle axle tube brake flange structure suitable for ordinary CNC lathes, the problem of high-cost processing in existing technologies has been solved, enabling universal processing on ordinary equipment and reducing production costs.
Patent Information
- Application Number
- CN202520253820.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-02-18
AI Technical Summary
The brake flange and bearing housing structure of existing electric tricycles require special machine tools and horizontal four-axis machining centers for processing, resulting in high production costs and making them difficult to popularize.
Design a three-wheeled vehicle axle tube brake flange structure, which is composed of a spoke plate part and a main body part as one piece. It is equipped with multiple bolt mounting holes and three-stage stepped holes, and is suitable for machining on ordinary CNC lathes. It is connected to the axle tube through an annular protrusion, and combined with the drive center and tailstock center for positioning, so as to realize the machining of ordinary equipment.
It reduces production costs and enables general-purpose machining even without dedicated machine tools and horizontal four-axis machining centers, making it suitable for machining on ordinary CNC lathes.
Smart Images
Figure CN223953106U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of tricycle braking device, concretely relates to a bridge pipe braking flange structure for tricycle. BACKGROUND
[0002] Due to the overall structure size, the rear axle structure size is generally small, no matter adopting the integral rear axle or split rear axle, due to the specific structure, the braking flange and bearing chamber structure need to be processed by special machine tool and horizontal four-axis machining center equipment, so as to guarantee the form and position tolerance of the machining size such as braking flange surface and bearing chamber.
[0003] The special machine tool and machining center equipment are expensive, and it is difficult to popularize, so the structure of the braking flange needs to be improved, so that it can also be processed by using ordinary numerical control lathe, so as to reduce the production cost. CONTENT OF THE UTILITY MODEL
[0004] In view of the deficiencies of the prior art, the utility model aims at designing a bridge pipe braking flange structure for tricycle, which is suitable for the production conditions without special machine tool and horizontal four-axis machining center equipment, and is suitable for a product structure of general machining process.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a bridge pipe braking flange structure for tricycle, comprising a braking flange, the braking flange is integrally formed by a web portion and a main body portion, the web portion is provided with a plurality of bolt mounting holes, the main body portion is in a cylindrical structure, the bottom of the main body portion is connected with the web portion, the end of the main body portion is provided with an annular protrusion for connecting the bridge pipe, a three-stage stepped hole is coaxially arranged in the inside of the main body portion from outside to inside, the three-stage stepped hole comprises a first stepped hole, a second stepped hole and a third stepped hole, the first stepped hole is connected with the web portion, the second stepped hole is connected with the bottom of the first stepped hole, the third stepped hole is connected with the bottom of the second stepped hole, wherein the diameter of the first stepped hole is greater than that of the second stepped hole, and the diameter of the second stepped hole is greater than that of the third stepped hole, a taper surface for cooperating with the driving center is arranged at the connection between the second stepped hole and the third stepped hole.
[0006] The inner diameter of the annular protrusion is the same as the diameter of the third stepped hole, and the outer diameter of the annular protrusion is smaller than the diameter of the main body portion.
[0007] The annular protrusion is connected with one end of the bridge pipe, and the inner diameter of the bridge pipe is matched with the outer diameter of the annular protrusion, and the end of the main body portion is in contact with the end of the bridge pipe.
[0008] The first stepped hole is integrated with the bearing chamber portion for installing the bearing.
[0009] The utility model discloses a beneficial effect is: be applicable to the production condition of no special machine tool and horizontal four -axis machining center equipment, using ordinary numerical control lathe also can process, reach the purpose of reducing production cost. BRIEF DESCRIPTION OF DRAWINGS
[0010] Figure 1 It is the overhead view schematic diagram of the utility model.
[0011] Figure 2 It is the side sectional view of the utility model.
[0012] Figure 3 It is the structure diagram after brake flange disc and bridge pipe welding of the utility model.
[0013] Figure 4 It is the positioning and processing schematic diagram on numerical control lathe.
[0014] In the drawing: 1, brake flange disc, 101, web portion, 1011, bolt mounting hole, 102, main body portion, 1021, annular protrusion, 1022, three-stage stepped hole, 1023, taper surface, 2, bridge pipe, 3, driving center, 4, tailstock center, 5, bridge housing flange disc. DETAILED DESCRIPTION
[0015] The technical scheme of the utility model will be described clearly and completely in combination with the drawings of the present specification, and it is necessary to note that the described embodiment is only a part of the embodiment of the utility model, and is not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the range of protection of the utility model.
[0016] Please refer to Figure 1 , Figure 2The utility model discloses a tricycle bridge pipe brake flange structure, including brake flange 1, the brake flange 1 is by web portion 101 and main part 102 solid as a whole and is formed, the web portion 101 is equipped with a plurality of bolt mounting hole 1011, the main part 102 is cylindrical structure, the bottom of main part 102 is connected with web portion 101, the end of main part 102 is with annular protrusion 1021 for connecting bridge pipe 2, the inside of main part 102 is provided with three stage step hole 1022 from outside to inside coaxially, the three stage step hole 1022 includes the first step hole of aperture and web portion 101 is connected, the second step hole of aperture and the bottom of first step hole is communicated, the third step hole of aperture and the bottom of second step hole is communicated, wherein, the diameter of first step hole is greater than second step hole, the diameter of second step hole is greater than third step hole, the connecting place of second step hole and third step hole is equipped with the taper surface 1023 for the positioning of cooperation drive center 3.The inner diameter of annular protrusion 1021 is same with the diameter of third step hole, and the outer diameter of annular protrusion 1021 is less than the diameter of main part 102. The end of annular protrusion 1021 is connected with one end of bridge pipe 2, and the inner diameter of bridge pipe 2 is matched with the outer diameter of annular protrusion 1021. The end of main part 102 is contacted and matched with the end of bridge pipe 2 connected. The first step hole is used for installing bearing, and bearing chamber part is integrated.
[0017] In the use process of the utility model,
[0018] As shown in the drawings, Figure 3 Insert annular protrusion 1021 of brake flange 1 into the mouth of one end of bridge pipe 2, make the end surface of main part 102 contact and match with the end surface of bridge pipe 2, then weld brake flange 1 on one end of bridge pipe 2, after setting bridge housing flange 5 on the other end of bridge pipe 2, weld, the welding position is marked with black triangle symbol in Figure 3
[0019] Next, as shown in the drawings, Figure 4 Use drive center 3 and tailstock center 4 to position and clamp bridge pipe 2 and the brake flange 1 and bridge housing flange 5 on both ends after welding, tailstock center 4 positions the mouth of one end of bridge pipe 2 with bridge housing flange 5, drive center 3 cooperates taper surface 1023 of brake flange 1 and positions, clamp bridge pipe 2 and the brake flange 1 and bridge housing flange 5 welded together on machine tool, process the end surface of brake flange 1 and bearing chamber, the end surface of bridge housing flange 5 and the outside circle of stopper, that is, Figure 4 The position represented by thick black line in the drawings, the face needing to be processed is completed after one clamping, which guarantees the size and shape tolerance of the face, inner hole and outside circle of both ends of bridge pipe 2 assembly.
[0020] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
[0021] The part not described in detail of the present application is prior art.
Claims
1. A tricycle bridge pipe brake flange structure comprising a brake flange (1), characterized in that: The brake flange plate (1) is formed by a web portion (101) and a main body portion (102) as a whole, the web portion (101) is provided with a plurality of bolt mounting holes, the main body portion (102) is in a cylindrical structure, the bottom of the main body portion (102) is connected with the web portion (101), the end of the main body portion (102) is provided with an annular protrusion (1021) for connecting a bridge pipe (2), a three-stage stepped hole (1022) is coaxially arranged in the main body portion (102) from outside to inside, the three-stage stepped hole (1022) includes a first stepped hole with an opening connected with the web portion (101), a second stepped hole with an opening connected with the bottom of the first stepped hole, and a third stepped hole with an opening connected with the bottom of the second stepped hole, wherein the diameter of the first stepped hole is larger than that of the second stepped hole, and the diameter of the second stepped hole is larger than that of the third stepped hole, a taper surface (1023) for matching a driving center (3) is arranged at the connection between the second stepped hole and the third stepped hole.
2. The bridge brake flange structure for a tricycle according to claim 1, characterized in that: The inner diameter of the annular protrusion (1021) is the same as the diameter of the third stepped hole, and the outer diameter of the annular protrusion (1021) is smaller than the diameter of the main body portion (102).
3. The bridge brake flange structure for a tricycle according to claim 1, characterized in that: The annular protrusion (1021) is connected with one end of the bridge pipe (2), the inner diameter of the bridge pipe (2) matches the outer diameter of the annular protrusion (1021); the end of the main body portion (102) is in contact with the end of the bridge pipe (2).
4. The tricycle axle brake flange structure according to claim 1, characterized in that: The first stepped hole is integrated with a bearing chamber portion for installing a bearing.