Wet brake mechanism of loader drive axle

Abstract

The utility model discloses a loader drive axle wet type brake mechanism, including: brake disc, brake piston, brake deflation device, brake ring, hub main part, drive shaft, drive shaft sleeve joint in hub main part, drive shaft one end is connected brake ring, brake piston is provided drive shaft at brake ring one end, brake disc is provided brake piston one end, the brake piston one end is connected with the brake ring one end, the brake piston one end is connected with the brake ring one end, the brake disc one end is provided with brake deflation device, brake ring one end is connected with the brake ring one end. The internal fluted disc brake has the advantages that the internal fluted disc is directly adopted in the brake, a closed structure is adopted, the brake disc works in an oil-immersed closed environment, part of heat generated during braking is absorbed by structural elements of the brake, and most of the heat is taken away by cooling liquid, so that the heat generated during braking is greatly reduced, and the service life of the brake is prolonged. The friction area is increased, the wet brake is resistant to high temperature, good in heat dissipation, little in abrasion and good in heat stability and braking stability, and therefore the braking stability is better and more reliable.

Description

Technical Field

[0001] The utility model relates to the field of construction machinery axles, specifically a wet brake related to axle braking, and particularly relates to a wet braking mechanism for a loader drive axle. Background Technique

[0002] A loader is a kind of earthwork construction machinery widely used in construction projects such as highways, railways, buildings, hydropower, ports, mines, etc. It is mainly used for shoveling bulk materials such as soil, sand, gravel, lime, coal, etc., and can also perform light shoveling operations on ores, hard soil, etc. By replacing different auxiliary working devices, it can also perform operations such as bulldozing, lifting, and loading and unloading or cleaning operations of other materials such as wood. Due to the advantages of fast operation speed, high efficiency, good mobility, and light operation, the loader has become one of the main machine types for earthwork construction in engineering construction.

[0003] When the loader is operating, the load changes frequently and within a large range, the whole vehicle starts and stops frequently, and currently most loaders mainly use mechanical dry brakes to brake the friction lining when braking. Therefore, when starting and stopping frequently, the heat of the friction lining is not easy to dissipate, and it is easy to cause the braking effect to decline. Therefore, a wet braking mechanism for a loader drive axle is provided to solve the above problems. Content of the Utility Model

[0004] To solve the problems in the above background technique, the technical solution adopted by the utility model to solve the technical problems is: a wet braking mechanism for a loader drive axle, including: a brake disc, a brake piston, a brake air release device, a brake ring, a hub body, and a drive shaft. The drive shaft is sleeved inside the hub body. One end of the drive shaft is connected to the brake ring. The brake piston is arranged at one end of the drive shaft where the brake ring is located. The brake disc is arranged at one end of the brake piston. The brake air release device is arranged on one side above the brake piston. A square sealing ring is arranged outside the brake piston, and the number of the square sealing rings is two. A planetary gear body is arranged on one side between the drive shaft and the inside of the hub body. A planetary gear shaft is arranged in the middle of the planetary gear body. A hub oil seal is arranged between the hub body and the drive shaft.

[0005] As a preferred technical solution of the utility model, a cylindrical pin is arranged between the brake piston and the drive shaft.

[0006] As a preferred technical solution of the utility model, planetary gear washers are sleeved on both ends of the planetary gear shaft where the planetary gear shaft is located, and a liquid needle is arranged between the planetary gear shaft and the planetary gear body.

[0007] As a preferred technical solution of the utility model, tapered roller bearings are arranged on the other side between the drive shaft and the inside of the hub body, and the number of the tapered roller bearings is two.

[0008] As a preferred technical solution of the present utility model, a lock washer is provided at one end of the drive shaft where it is located at the tapered roller bearing, an axle head lock nut is connected to one end of the drive shaft where the lock washer is located, and a hub cover is provided at one end of the hub body where the axle head lock nut is located.

[0009] As a preferred technical solution of the present utility model, tire bolts are provided at one end of the hub body where the brake disc is located, a plug is provided on one side of the hub body, and a washer body is sleeved outside the plug.

[0010] The present utility model has the following advantages: an internal gear disc is directly adopted inside the brake, and a closed structure is adopted. The brake disc works in an oil-immersed and closed environment. When braking, part of the heat generated is absorbed by the structural elements of the brake, and most of it is taken away by the coolant;

[0011] The friction area is increased. The wet brake is resistant to high temperature, has good heat dissipation, less wear, good thermal stability and braking stability, and thus makes the braking stability better and more reliable. Description of the Drawings

[0012] Figure 1 is a schematic internal structure diagram of a preferred embodiment of the present utility model;

[0013] Figure 2 is a Figure 1 partial structure diagram of a preferred embodiment of the present utility model;

[0014] Figure 3 is a schematic diagram of the structure of surface A of the hub body of a preferred embodiment of the present utility model.

[0015] Description of the reference numerals: 1, brake disc; 2, brake piston; 3, square sealing ring; 4, cylindrical pin; 5, brake air bleeding device; 7, brake ring; 8, planetary gear body; 9, planetary gear shaft; 10, planetary gear gasket; 11, liquid needle; 12, tapered roller bearing; 13, lock washer; 14, axle head lock nut; 15, hub body; 16, hub cover; 17, drive shaft; 18, tire bolt; 19, hub oil seal; 20, plug; 21, washer body. Detailed Embodiment

[0016] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. These are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0017] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0018] The present utility model will be further described below in conjunction with the accompanying drawings.

[0019] Please refer to Figures 1 - 3 , a wet braking mechanism of a loader drive axle of the present utility model includes: a brake disc 1, a brake piston 2, a brake air bleeding device 5, a brake ring 7, a hub body 15, and a drive shaft 17. The drive shaft 17 is sleeved inside the hub body 15. One end of the drive shaft 17 is connected to the brake ring 7. The brake piston 2 is arranged at one end of the drive shaft 17 where the brake ring 7 is located. The brake disc 1 is arranged at one end of the brake piston 2. The brake air bleeding device 5 is arranged on one side of the upper end of the brake piston 2.

[0020] Combined with Figure 2 As shown, a square sealing ring 3 is arranged outside the brake piston 2. Through the square sealing ring 3, the sealing performance of the brake piston 2 can be effectively improved. The number of the square sealing rings 3 is two. A cylindrical pin 4 is arranged between the brake piston 2 and the drive shaft 17. A planetary gear body 8 is arranged on one side between the drive shaft 17 and the inside of the hub body 15. A planetary gear shaft 9 is arranged in the middle of the planetary gear body 8. Planetary gear washers 10 are sleeved at both ends of the planetary gear shaft 9. A liquid needle 11 is arranged between the planetary gear shaft 9 and the planetary gear body 8.

[0021] Combined with Figure 1 and Figure 3As shown in the figure, a tapered roller bearing 12 is provided on the other side between the drive shaft 17 and the inside of the hub body 15. The number of tapered roller bearings 12 is two, which facilitates the rotation of the drive shaft 17. A lock washer 13 is provided at one end of the drive shaft 17 where it is located in the tapered roller bearing 12. An axle head lock nut 14 is connected to the drive shaft 17 at one end of the lock washer 13. A hub cap 16 is provided at one end of the hub body 15 where the axle head lock nut 14 is located. A tire bolt 18 is provided at one end of the hub body 15 where the brake disc 1 is located. A hub oil seal 19 is provided between the hub body 15 and the drive shaft 17. A plug 20 is provided on one side of the hub body 15, and a washer body 21 is sleeved outside the plug 20, which facilitates the replacement and discharge of the coolant.

[0022] Specifically, in the present invention, the brake adopts a closed structure. The brake disc 1 works in an oil-immersed closed environment. Part of the heat generated during braking is absorbed by the structural elements of the brake, while most of it is carried away by the coolant. The friction area is increased. The wet brake has high temperature resistance, good heat dissipation, less wear, and good thermal stability and braking stability.

[0023] The above is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

[0024] The other parts not described in detail in the present invention all belong to the prior art, so they will not be elaborated here.

[0025] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A wet brake mechanism for a loader drive axle, characterized in that: include: A brake disc (1), a brake piston (2), a brake bleed device (5), a brake ring (7), a wheel hub body (15), and a drive shaft (17). The drive shaft (17) is sleeved inside the wheel hub body (15). One end of the drive shaft (17) is connected to the brake ring (7). The brake piston (2) is arranged on the drive shaft (17) and located at one end of the brake ring (7). The brake disc (1) is arranged at one end of the brake piston (2). The brake bleed device (5) is arranged on one side of the upper end of the brake piston (2). A square sealing ring (3) is arranged on the outer side of the brake piston (2). Two square sealing rings (3) are arranged. A planetary gear body (8) is arranged on one side between the drive shaft (17) and the inside of the wheel hub body (15). A planetary gear shaft (9) is arranged in the middle of the planetary gear body (8). A wheel hub oil seal (19) is arranged between the wheel hub body (15) and the drive shaft (17).

2. A wet brake mechanism for a loader drive axle as claimed in claim 1, characterized in that: A cylindrical pin (4) is arranged between the brake piston (2) and the drive shaft (17).

3. A wet brake mechanism for a loader drive axle as claimed in claim 1, characterized in that: The planetary wheel shaft (9) is located at both ends of the planetary wheel body (8) and is sleeved with planetary wheel gaskets (10), and a liquid needle (11) is provided between the planetary wheel shaft (9) and the planetary wheel body (8).

4. A wet brake mechanism for a loader drive axle as claimed in claim 1, characterized in that: A tapered roller bearing (12) is arranged on the other side between the driving shaft (17) and the inside of the hub body (15), and two tapered roller bearings (12) are arranged.

5. The wet brake mechanism of a loader drive axle as claimed in claim 1, characterized in that: The drive shaft (17) is provided with a locking washer (13) at one end of the tapered roller bearing (12), the drive shaft (17) is connected with a shaft head locking nut (14) at one end of the locking washer (13), and the hub body (15) is provided with a hub cover (16) at one end of the shaft head locking nut (14).

6. A wet brake mechanism for a loader drive axle as claimed in claim 1, characterized in that: The wheel hub body (15) is provided with a tire bolt (18) at one end of the brake disc (1), and a screw plug (20) is provided on one side of the wheel hub body (15), and a washer body (21) is sleeved on the outer side of the screw plug (20).

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