Three-fulcrum steering axle structure facilitating wheel assembly

Abstract

The utility model discloses a three-fulcrum steering axle structure convenient for wheel assembly, which comprises a steering bracket, a slewing bearing and a wheel axle, the surface of the steering bracket is fixedly connected with a neck shaft, a bearing inner ring of the slewing bearing is fixedly arranged on the neck shaft of the steering bracket, and a wheel assembly is arranged on the outer surface of the wheel axle. Two clamping grooves are formed in the lower end of the steering support, a first stepped shaft and a second stepped shaft are connected to the inner walls of the clamping grooves in a clamped mode and arranged on the outer surface of a wheel shaft in a sleeving mode, external threads are arranged on the outer surfaces of the two ends of the wheel shaft, and the two ends of the wheel shaft are in threaded connection with fixing bolts through the external threads. A novel steering support structure is designed, a single wheel is adopted, the wheels are installed in a clamping groove mode, the wheel assembling mode is optimized, the assembling efficiency is improved, the product quality is improved, and the steering flexibility is further improved by adopting a single-wheel structure; meanwhile, the wheels are installed in a clamping groove mode, convenience is provided for later-stage disassembly, and later-stage repair and maintenance are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of steering axles, in particular to a three-support point steering axle structure which is convenient for wheel assembly. Background Art

[0002] As people's awareness of ecological environment protection increases, countries around the world pay more and more attention to the application of green, low-carbon, energy-saving storage and transportation vehicles and tractors in the fields of production, transportation and warehousing. As one of the key components of electric tractors, the rationality of the design of the three-point steering axle is directly related to the performance of the forklift.

[0003] The traditional three-point tractor steering axle adopts a steering axle and a steering bracket welded together, and is mostly a double-wheel structure. The overall shape is large, not compact enough, and the steering flexibility is not high;

[0004] Moreover, the existing 5-6t three-point steering axle fixes the wheel axle and the steering bracket by welding, and then press-fits the wheel hub. The operation is complicated and there are safety hazards, which not only affects the product quality, but also is not conducive to the later product maintenance. Therefore, it needs to be improved. Utility Model Content

[0005] The utility model aims to provide a three-point steering bridge structure which is convenient for wheel assembly, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a three-point steering bridge structure that is convenient for wheel assembly, comprising a steering bracket, a slewing bearing and a wheel axle, the surface of the steering bracket is fixedly connected with a neck shaft, the inner ring of the bearing of the slewing bearing is fixedly installed on the neck shaft of the steering bracket, the outer surface of the wheel axle is provided with a wheel assembly, the lower end of the steering bracket is provided with two slots, the inner walls of the slots are respectively clamped with a first stepped shaft and a second stepped shaft, and the first stepped shaft and the second stepped shaft are sleeved on the outer surface of the wheel axle, the outer surfaces of both ends of the wheel axle are provided with external threads, and the two ends of the wheel axle are threadedly connected with fixing bolts through the external threads.

[0007] Preferably, sleeve pads are sleeved on the outer surfaces of both ends of the wheel axle, the sleeve pads are located between the fixing bolts and the steering bracket, and anti-slip grooves are provided on the side of the sleeve pads facing the steering bracket.

[0008] Preferably, the wheel assembly comprises a wheel and a hub, the wheel is fixedly mounted on the outer surface of the hub, and the hub is rotatably connected to the outer surface of the axle via a bearing.

[0009] Preferably, the steering bracket includes a top frame, a middle frame and two side frames, the top frame is fixedly welded to the upper ends of the two side frames, and the middle frame is fixedly welded to the inner sides of the two side frames.

[0010] Preferably, two first reinforcing ribs are fixedly welded to the upper surface of the middle frame, and the side surfaces of the two first reinforcing ribs are fixedly welded to the inner sides of the side frames respectively.

[0011] Preferably, two second reinforcing ribs are fixedly welded to the lower surface of the middle frame, and the side surfaces of the two second reinforcing ribs are respectively fixedly welded to the inner sides of the side frames.

[0012] Beneficial Effects

[0013] The utility model provides a three-point steering bridge structure which is convenient for wheel assembly and has the following beneficial effects:

[0014] 1. The three-pivot steering axle structure, which is convenient for wheel assembly, optimizes the wheel assembly method, improves assembly efficiency, and improves product quality by designing a new steering bracket structure, adopting a single wheel, and installing the wheel by means of a slot. By adopting a single wheel structure, the steering flexibility is also improved; at the same time, installing the wheel by means of a slot also provides convenience for later disassembly, which is conducive to later repair and maintenance.

[0015] 2. The three-pivot steering axle structure that is convenient for wheel assembly effectively improves the structural strength and load-bearing capacity of the steering bracket by providing two first reinforcing ribs and two second reinforcing ribs, making the entire steering axle structure more durable and increasing its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a three-pivot steering bridge structure that is convenient for wheel assembly proposed by the utility model;

[0017] Figure 2 A schematic diagram of the three-dimensional structure of a steering bracket of a three-pivot steering bridge structure that is convenient for wheel assembly proposed by the utility model;

[0018] Figure 3 The utility model is a front view schematic diagram of a three-pivot steering axle structure which is convenient for wheel assembly.

[0019] In the figure: 1, slewing bearing; 2, steering bracket; 3, wheel axle; 4, wheel assembly; 5, slot; 6, first reinforcing rib; 7, middle frame; 8, second reinforcing rib; 9, neck shaft; 10, top frame; 11, bushing; 12, first stepped shaft; 13, second stepped shaft; 14, fixing bolt; 15, side frame. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3 The utility model provides a technical solution: a three-pivot steering bridge structure which is convenient for wheel assembly, comprising a steering bracket 2, a slewing bearing 1 and a wheel axle 3, a neck shaft 9 is fixedly connected to the surface of the steering bracket 2, an inner ring of a bearing of the slewing bearing 1 is fixedly mounted on the neck shaft 9 of the steering bracket 2, a wheel assembly 4 is arranged on the outer surface of the wheel axle 3, the wheel assembly 4 comprises a wheel and a wheel hub, the wheel is fixedly mounted on the outer surface of the wheel hub, and the wheel hub is rotatably connected to the outer surface of the wheel axle 3 through a bearing.

[0022] Two slots 5 are provided at the lower end of the steering bracket 2, and the inner walls of the slots 5 are respectively clamped with the first stepped shaft 12 and the second stepped shaft 13, and the first stepped shaft 12 and the second stepped shaft 13 are sleeved on the outer surface of the wheel axle 3, and the outer surfaces of both ends of the wheel axle 3 are provided with external threads, and the two ends of the wheel axle 3 are threadedly connected with fixing bolts 14 through external threads. By designing a new steering bracket 2 structure, adopting a single wheel, and installing the wheel through the slot 5, the wheel assembly method is optimized, the assembly efficiency is improved, and the product quality is improved. By adopting the single wheel structure, the steering flexibility is also improved; at the same time, installing the wheel through the slot 5 also provides convenience for later disassembly, which is conducive to later repair and maintenance.

[0023] The outer surfaces of both ends of the wheel axle 3 are also sleeved with sleeve pads 11, which are located between the fixing bolts 14 and the steering bracket 2, and the side of the sleeve pads 11 facing the steering bracket 2 is provided with anti-slip grooves. By providing the sleeve pads 11 and tightening the fixing bolts 14, the sleeve pads 11 can be pressed against the steering bracket 2, thereby effectively improving the fixing effect of the wheel axle 3.

[0024] The steering bracket 2 includes a top frame 10, a middle frame 7 and two side frames 15. The top frame 10 is fixedly welded to the upper ends of the two side frames 15, the middle frame 7 is fixedly welded to the inner sides of the two side frames 15, two first reinforcing ribs 6 are fixedly welded to the upper surface of the middle frame 7, and the side surfaces of the two first reinforcing ribs 6 are respectively fixedly welded to the inner sides of the side frames 15, two second reinforcing ribs 8 are fixedly welded to the lower surface of the middle frame 7, and the side surfaces of the two second reinforcing ribs 8 are respectively fixedly welded to the inner sides of the side frames 15. By arranging two first reinforcing ribs 6 and two second reinforcing ribs 8, the structural strength and bearing capacity of the steering bracket 2 are effectively improved, making the entire steering axle structure more durable and improving the service life.

[0025] In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0026] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A three-point steering bridge structure for facilitating wheel assembly, comprising a steering bracket (2), a slewing bearing (1) and a wheel axle (3), characterized in that: A neck shaft (9) is fixedly connected to the surface of the steering bracket (2); the inner ring of the bearing of the slewing bearing (1) is fixedly mounted on the neck shaft (9) of the steering bracket (2); a wheel assembly (4) is arranged on the outer surface of the wheel axle (3); two clamping grooves (5) are provided at the lower end of the steering bracket (2); the inner walls of the clamping grooves (5) are respectively clamped with a first stepped shaft (12) and a second stepped shaft (13); the first stepped shaft (12) and the second stepped shaft (13) are sleeved on the outer surface of the wheel axle (3); the outer surfaces of both ends of the wheel axle (3) are provided with external threads; and the two ends of the wheel axle (3) are threadedly connected with fixing bolts (14) through the external threads.

2. A three-point steering bridge structure for facilitating wheel assembly according to claim 1, characterized in that: The outer surfaces of both ends of the wheel axle (3) are also sleeved with sleeve pads (11), the sleeve pads (11) are located between the fixing bolts (14) and the steering bracket (2), and the side of the sleeve pads (11) facing the steering bracket (2) is provided with anti-skid patterns.

3. The three-point steering bridge structure for facilitating wheel assembly according to claim 1, characterized in that: The wheel assembly (4) comprises a wheel and a wheel hub, wherein the wheel is fixedly mounted on the outer surface of the wheel hub, and the wheel hub is rotatably connected to the outer surface of the wheel axle (3) via a bearing.

4. The three-point steering bridge structure for facilitating wheel assembly according to claim 1, characterized in that: The steering bracket (2) comprises a top frame (10), a middle frame (7) and two side frames (15); the top frame (10) is fixedly welded to the upper ends of the two side frames (15); and the middle frame (7) is fixedly welded to the inner sides of the two side frames (15).

5. A three-pivot steering bridge structure for facilitating wheel assembly according to claim 4, characterized in that: Two first reinforcing ribs (6) are fixedly welded to the upper surface of the middle frame (7), and the side surfaces of the two first reinforcing ribs (6) are respectively fixedly welded to the inner sides of the side frames (15).

6. A three-pivot steering bridge structure for facilitating wheel assembly according to claim 5, characterized in that: Two second reinforcing ribs (8) are fixedly welded to the lower surface of the middle frame (7), and the side surfaces of the two second reinforcing ribs (8) are respectively fixedly welded to the inner sides of the side frames (15).

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