Caliper disc brake belt neutral position induction steering drive axle

Abstract

The utility model discloses a caliper disc brake belt neutral position induction steering drive axle which comprises an axle body, a main speed reducer installed in the axle body and wheel edge speed reducers arranged on the left side and the right side of the main speed reducer. The steering oil cylinder is arranged outside the bridge body, the steering oil cylinder is composed of an oil cylinder body, a piston, an induction magnetic ring, a hose clamp and an electromagnetic sensor, and the bridge body is composed of an inner steel plate, epoxy anti-corrosion paint and water-based anti-rust paint; a transmission shaft is arranged between the main speed reducer and the wheel-side speed reducer, a planet wheel type differential mechanism system is installed in the main speed reducer, and a supporting pin shaft, a steering knuckle, a wheel-side supporting shaft, a friction plate, a brake disc and a hub are sequentially arranged outside the transmission shaft. The caliper disc braking and neutral position sensing steering drive axle is convenient to realize driving and steering, has the advantages of high bearing torque, flexible steering, accurate return, quick braking, short braking distance and the like, and is convenient to have the advantages of high bearing capacity, corrosion resistance, rust resistance and long service life.

Description

Technical Field

[0001] The utility model relates to the technical field of excavator loaders, in particular to a caliper disc brake with a mid-position induction steering drive axle. Background Art

[0002] In recent years, backhoe loaders have attracted hot market demand with their low investment and high efficiency. They are widely used in earthwork operations in farms, infrastructure, road maintenance and other projects and auxiliary operations in large construction sites at home and abroad. Backhoe loaders have both loading and excavation functions. The integration of these two functions effectively saves equipment cost investment and site occupation, facilitates user operation and conversion, has good flexibility and extremely high operating efficiency.

[0003] Backhoe loaders require four-wheel steering. In addition to normal walking and steering, they are required to be able to walk in a crab-like manner in a narrow space with a small turning radius. The conversion between these three walking modes needs to be flexible and accurate, so the mid-position control of the steering drive axle becomes a key requirement. In response to this market demand, this utility model designs a caliper brake with a mid-position sensing steering drive axle, which has the advantages of high load-bearing and torsion bearing, flexible steering, accurate return, rapid braking and short braking distance. Utility Model Content

[0004] The utility model aims to provide a caliper brake with a mid-position induction steering drive axle, which has the advantages of high load-bearing and torsion-bearing capacity, flexible steering, accurate return, rapid braking and short braking distance.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: a caliper brake with a neutral induction steering drive axle, comprising: a bridge body, a main reducer installed inside the bridge body, and wheel-side reducers arranged on the left and right sides of the main reducer;

[0006] Also includes:

[0007] A steering oil cylinder is arranged outside the bridge body, and the steering oil cylinder is composed of a cylinder body, a piston, an induction magnetic ring, a throat clamp and an electromagnetic sensor, and the bridge body is composed of an inner steel plate, epoxy anti-corrosion paint and water-based anti-rust paint;

[0008] A transmission shaft is arranged between the main reducer and the wheel side reducer, and a planetary gear differential system is installed in the main reducer, and a support pin shaft, a steering knuckle, a wheel side support shaft, a friction plate, a brake disc and a wheel hub are arranged outside the transmission shaft in sequence.

[0009] Preferably, two induction magnetic rings are installed on the built-in piston of the steering cylinder, and the induction magnetic rings correspond to the electromagnetic sensors arranged outside the piston, and the electromagnetic sensors are fastened to the cylinder body through throat clamps.

[0010] Preferably, the oil cylinder body is fastened to the bridge body by bolts, and the oil cylinder body is fastened to the steering knuckle by a support pin body, and the steering knuckle rotates around the support pin as the center.

[0011] Preferably, the steering knuckle is screw-fixed with a wheel side support shaft, and the wheel side support shaft is nested with a friction plate, a brake disc and a wheel hub;

[0012] Among them, a wheel hub fixed to the wheel reducer with bolts is arranged on the outer side of the wheel support shaft, and the wheel reducer with caliper disc brake is fixed to the wheel support shaft by bolts, and the brake caliper installed on the wheel reducer is fixedly connected to the steering knuckle by bolts.

[0013] Preferably, the friction plates are disposed on both sides of the brake disc, and the friction plates press the brake disc under the action of hydraulic oil, and the brake disc is fixedly connected to the outside of the wheel hub by bolts.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the caliper brake with mid-position induction steering drive axle is convenient for driving and steering, and has the advantages of high load-bearing and torsion-bearing capacity, flexible steering, accurate return, rapid braking and short braking distance, etc., which makes it easy for the axle to have high load-bearing capacity, corrosion resistance and rust resistance, and long service life;

[0015] 1. A bridge body, a main reducer, a steering oil cylinder and a transmission shaft are provided. Since a main reducer with a planetary gear differential system is installed on the inner side of the bridge body, a semi-floating cross universal transmission shaft is used to transmit power between the main reducer and the wheel-side reducer, and the cylinder body is fastened to the bridge body by bolts. The steering oil cylinder is fastened to the steering knuckle through the pin shaft body. The hydraulic oil enters the cylinder body to push the piston and the push rod to move, driving the steering knuckle to rotate around the support pin shaft, and the brake disc is fixedly connected to the wheel hub by bolts. The wheel-side reducer is fixed to the wheel-side support shaft by bolts. The brake caliper installed on the wheel-side reducer is fixedly connected to the steering knuckle by bolts, and the built-in friction plates of the wheel-side reducer are arranged on both sides of the brake disc. Under the action of the hydraulic oil, the two friction plates press the brake disc to brake the wheel hub, so that the bridge can be driven and steered easily, and has the advantages of high load-bearing and torsion-bearing capacity, flexible steering, accurate return, rapid braking and short braking distance;

[0016] 2. A bridge body, inner steel plate, epoxy anti-corrosion paint and water-based anti-rust paint are provided. Since the bridge body is composed of the inner steel plate, epoxy anti-corrosion paint and water-based anti-rust paint, the epoxy anti-corrosion paint and the water-based anti-rust paint are sprayed on the outside of the inner steel plate in sequence, so that the bridge has high load-bearing capacity, is easy to prevent corrosion and rust, and has a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model from top view;

[0019] Figure 3 It is a structural schematic diagram of the bridge body of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the steering cylinder of the utility model.

[0021] In the figure: 1. bridge body; 2. main reducer; 3. steering cylinder; 301. cylinder body; 302. piston; 303. induction magnetic ring; 304. throat clamp; 305. electromagnetic sensor; 306. pin shaft body; 4. transmission shaft; 5. support pin shaft; 6. steering knuckle; 7. wheel side support shaft; 8. friction plate; 9. brake disc; 10. wheel hub; 11. wheel side reducer; 12. planetary gear differential system; 13. brake caliper; 14. inner steel plate; 15. epoxy anti-corrosion paint; 16. water-based anti-rust paint. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-4 The utility model provides a technical solution: a caliper brake with a neutral induction steering drive axle, comprising a bridge body 1, a main reducer 2, a steering cylinder 3, a cylinder body 301, a piston 302, an induction magnetic ring 303, a throat hoop 304, an electromagnetic sensor 305, a pin shaft body 306, a transmission shaft 4, a support pin shaft 5, a steering knuckle 6, a wheel side support shaft 7, a friction plate 8, a brake disc 9, a wheel hub 10, a wheel side reducer 11, a planetary wheel differential system 12, a brake caliper 13, an inner steel plate 14, an epoxy anticorrosive paint 15 and a water-based antirust paint 16. When the caliper brake with a neutral induction steering drive axle is used, such as Figure 1 , Figure 3 and Figure 4 The main engine power torque is transmitted from the input flange, and after being decelerated and differentially driven by the main reducer 2, the power is transmitted to the wheel reducers 11 on both sides through the half shafts. After being decelerated by the wheel side, the power is finally transmitted to the wheel hub 10, thereby driving the tire to roll forward;

[0024] The main reducer 2 adopts spiral bevel gear transmission, which has the characteristics of large input torque, high transmission efficiency, and stable operation. The wheel-side reducer 11 adopts a planetary reduction transmission structure of NGW type, which has a compact structure, a large reduction ratio, and a stable output. The main reducer 2 is equipped with a planetary wheel differential system 12, which effectively balances the difference in tire speeds on both sides when the vehicle turns, and solves the problem of tire slippage on both sides under various working conditions. A semi-floating cross universal transmission shaft 4 is used to transmit power between the main reducer 2 and the wheel-side reducer 11. The wheel-side reducer 11 is a caliper disc brake, and the brake disc 9 is fixedly connected to the wheel hub 10 by bolts, and the caliper wheel-side reducer 11 is fixed to the wheel-side support shaft 7 by bolts, and the built-in friction plates 8 of the wheel-side reducer 11 are arranged on both sides of the brake disc 9. Under the action of hydraulic oil, the two brake discs 9 press the brake disc 9, thereby braking the wheel hub 10;

[0025] The double-acting oil cylinder body 301 is fastened to the bridge body 1 by bolts, and the steering oil cylinder 3 is fastened to the steering knuckle 6 by the hinge pin shaft body 306. The hydraulic oil enters the oil cylinder cavity to push the piston 302 and the push rod to move, and drives the steering knuckle 6 to rotate around the support pin shaft 5, so it is easy to realize the steering of the whole bridge, and it is easy to adopt full hydraulic power steering through the steering system, so that the steering is flexible and light. Two induction magnetic rings 303 are installed on the piston 302 built in the steering oil cylinder 3, and the electromagnetic sensor 305 is fastened to the outside of the oil cylinder body 301 through the throat clamp 304, and the induction end of the electromagnetic sensor 305 corresponds to the induction magnetic ring 303, so it is easy to convert the electromagnetic sensor 305 into a position signal through the magnetic induction change to feedback to the host control system, accurately control the hydraulic oil to enter the front and rear axle cylinders, and ensure that the front and rear axle steering moves according to the command;

[0026] like Figure 1 and Figure 3 , and the bridge body 1 is composed of an inner steel plate 14 and epoxy anti-corrosion paint 15 and water-based anti-rust paint 16 sprayed in sequence on the outside of the inner steel plate 14. Therefore, under the inherent properties of the inner steel plate 14, the epoxy anti-corrosion paint 15 and the water-based anti-rust paint 16, the bridge has a high load-bearing capacity and is easy to prevent corrosion and rust, thereby making it have a long service life. The above-mentioned electrical components are all existing technologies and will not be described in detail here.

[0027] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field. The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A caliper brake with a neutral position sensing steering drive axle, comprising: A bridge body (1), a main reducer (2) installed inside the bridge body (1), and wheel-side reducers (11) arranged on the left and right sides of the main reducer (2); It is characterized by further comprising: A steering oil cylinder (3) is arranged outside the bridge body (1), and the steering oil cylinder (3) is composed of an oil cylinder body (301), a piston (302), an induction magnetic ring (303), a throat clamp (304) and an electromagnetic sensor (305), and the bridge body (1) is composed of an inner steel plate (14), an epoxy anticorrosive paint (15) and a water-based antirust paint (16); A transmission shaft (4) is arranged between the main reducer (2) and the wheel-side reducer (11), a planetary gear differential system (12) is installed in the main reducer (2), and a support pin shaft (5), a steering knuckle (6), a wheel-side support shaft (7), a friction plate (8), a brake disc (9) and a wheel hub (10) are arranged in sequence outside the transmission shaft (4).

2. A caliper brake with a neutral induction steering drive axle according to claim 1, characterized in that: Two induction magnetic rings (303) are installed on the internal piston (302) of the steering oil cylinder (3), and the induction magnetic rings (303) correspond to the electromagnetic sensors (305) arranged outside the induction magnetic rings (303), and the electromagnetic sensors (305) are fastened to the oil cylinder body (301) through the throat clamp (304).

3. The caliper brake with mid-position induction steering drive axle according to claim 1, characterized in that: The oil cylinder body (301) is fastened to the bridge body (1) by bolts, and the oil cylinder body (301) is fastened to the steering knuckle (6) by a pin shaft body (306), and the steering knuckle (6) rotates around the support pin shaft (5).

4. The caliper brake with mid-position induction steering drive axle according to claim 1, characterized in that: The steering knuckle (6) is screw-fixed with a wheel side support shaft (7), and the wheel side support shaft (7) is nested with a friction plate (8), a brake disc (9) and a wheel hub (10); A wheel hub (10) is provided on the outer side of the wheel side support shaft (7) and is fixed to the wheel side reducer (11) with bolts, and the wheel side reducer (11) with a caliper disc brake is fixed to the wheel side support shaft (7) by bolts, and the brake caliper (13) installed on the wheel side reducer (11) is fixedly connected to the steering knuckle (6) by bolts.

5. The caliper brake with neutral induction steering drive axle according to claim 1, characterized in that: The friction plate (8) is disposed on both sides of the brake disc (9), and the friction plate (8) presses the brake disc (9) under the action of hydraulic oil, and the brake disc (9) is fixedly connected to the outside of the wheel hub (10) by bolts.

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