Air chamber of brake assembly

Abstract

The utility model relates to the brake assembly air chamber, air chamber uses high pressure oil pipe and intercommunication with brake, install on axle; air chamber middle section two holes respectively connect on parking air pipe and brake air pipe, plunger pump shell dress good oil seal a, oil seal b, will valve core dress good oil seal d after install into plunger lower end corresponding hole and install into plunger pump shell, lower cone spring is covered on plunger pump shell, put into oil drum, use lock nut to tighten oil drum and bottom plate, cover diaphragm, air chamber middle section dress good oil seal c, install into jackscrew, after it is installed on diaphragm, air chamber middle section upper chamber puts on cone spring, puts on diaphragm, air chamber upper cover install into gas spring, buckle on air chamber middle section's diaphragm, use bolt, flange and connect above-mentioned spare parts into an organic whole, add brake fluid to oil drum, the utility model converts into air top oil mode for the compressed air on the car, provides hydraulic pressure for brake cylinder, to realize braking, simple installation and maintenance, fully release the brake, no drag phenomenon.

Description

Technical Field

[0001] This utility model relates to the field of brakes, and in particular to the air chamber of a brake assembly. It is an important component of my previous invention patent brake (patent number 201610859165.3) and disc brake (application number 202110392205.9). It converts compressed air on the vehicle into an air-hydraulic method to provide hydraulic pressure to the brake cylinder, thereby achieving braking. Background Technology

[0002] Currently, based on our information and research, all air chambers on the market are significantly different from ours. Although they also have both parking and braking functions, the air chambers currently used in heavy-duty truck disc brakes are all mechanical, lacking the air-over-hydraulic type. Mechanical disc brakes suffer from problems such as complex installation and maintenance, and after a period of use, incomplete brake release and dragging occur, causing the brake to work in vain, increasing unnecessary wear on the brake disc and pads, and in some cases even leading to fires and serious traffic accidents. To improve and solve these problems, we invented the air chamber of this brake assembly. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides an air chamber for a brake assembly, which converts the compressed air on the vehicle into an air-hydraulic method to provide hydraulic pressure to the brake cylinder, thereby achieving braking; it is simple to install and maintain, provides full brake release, and has no dragging phenomenon.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: The air chamber of the brake assembly consists of an air spring, an air chamber cover, bolts, a flange, an air chamber middle section, an oil tank, a base plate, a lock nut, a plunger pump housing, oil seal a, oil seal b, a valve core, a lower cone spring, a plunger, a diaphragm, oil seal c, an upper cone spring, a push rod, oil seal d, and brake fluid; the air chamber is connected to the brake via a high-pressure oil pipe and is installed on the axle; the two holes in the middle section of the air chamber are respectively connected to the parking air pipe and the brake air pipe; the plunger pump housing is filled with oil. Seal a and oil seal b; after installing the valve core and oil seal d, insert it into the corresponding hole at the lower end of the plunger and install it into the plunger pump housing. Sleeve the lower cone spring onto the plunger pump housing and place it into the oil drum. Tighten the oil drum and the base plate with the lock nut. Cover with the diaphragm. Place oil seal c in the middle section of the air chamber and install the push rod. Then install it on the diaphragm. Place the cone spring and the diaphragm in the upper cavity of the middle section of the air chamber. Install the gas spring into the upper cover of the air chamber and fasten it onto the diaphragm in the middle section of the air chamber. Connect the above parts into one piece with bolts and flanges. Add brake fluid to the oil drum.

[0005] Furthermore, the air spring is inserted into the central hole of the air chamber cover.

[0006] Furthermore, a through hole is drilled radially on the upper part of the plunger pump housing, adjacent to the oil seal groove b.

[0007] Furthermore, the plunger is hollow with a stepped bore, and a valve core is placed in the lower end bore, with a through hole drilled radially in the middle.

[0008] The beneficial effects of this utility model are as follows: The air chamber of the brake assembly of this utility model converts the compressed air on the vehicle into an air-hydraulic method, providing hydraulic pressure to the brake cylinder to achieve braking; the installation and maintenance are simple, the brake release is sufficient, and there is no dragging phenomenon. Attached Figure Description

[0009] Figure 1 This is a side view of the brake assembly;

[0010] Figure 2 Here is a three-dimensional view of the brake assembly;

[0011] Figure 3 This is a perspective view of the air chamber of the brake assembly of this utility model;

[0012] Figure 4 This is a cross-sectional view of the air chamber of the brake assembly of this utility model in the driving state;

[0013] Figure 5 This is a cross-sectional view of the air chamber of the brake assembly of this utility model in the braking state;

[0014] Figure 6 This is a cross-sectional view of the air chamber of the brake assembly of this utility model in the parked state.

[0015] Figure 7 This is a view of the air spring in the air chamber of the brake assembly of this utility model;

[0016] Figure 8 This is a top rod view of the air chamber of the brake assembly of this utility model;

[0017] Figure 9 This is a mid-section view of the air chamber of the brake assembly of this utility model;

[0018] Figure 10 This is a view of the plunger pump housing of the air chamber in the brake assembly of this utility model.

[0019] Figure 11 This is a plunger view of the air chamber of the brake assembly of this utility model;

[0020] Figure 12 This is a view of the valve core of the air chamber in the brake assembly of this utility model;

[0021] Among them, 1-air chamber, 2-high pressure oil pipe, 3-brake, 4-air spring, 5-air chamber top cover, 6-bolt, 7-flange, 8-air chamber middle section, 9-oil drum, 10-base plate, 11-locking nut, 12-plunger pump housing, 13-oil seal a, 14-oil seal b, 15-valve core, 16-lower cone spring, 17-plunger, 18-diaphragm, 19-oil seal c, 20-upper cone spring, 21-push rod, 22-oil seal d, 23-brake fluid. Detailed Implementation

[0022] To enhance understanding of this utility model, it will be described in further detail below with reference to the accompanying drawings and embodiments. These embodiments are only used to explain this utility model and do not limit the scope of protection of this utility model.

[0023] The air chamber of the brake assembly consists of an air spring 4, an air chamber cover 5, bolts 6, flanges 7, an air chamber middle section 8, an oil tank 9, a base plate 10, a lock nut 11, a plunger pump housing 12, oil seal a13, oil seal b14, a valve core 15, a lower cone spring 16, a plunger 17, a diaphragm 18, an oil seal c19, an upper cone spring 20, a push rod 21, an oil seal d22, and brake fluid 23.

[0024] This utility model relates to an air chamber of a brake assembly, the structure and composition of which are embodiments of this invention.

[0025] Brake 3 is connected to air chamber 1 via high-pressure oil pipe 2; oil seal a13 and oil seal b14 are installed on plunger pump housing 12; valve core (15) is installed with oil seal d (22) and then inserted into the corresponding hole at the lower end of plunger (17), and then installed on plunger pump housing (12); lower cone spring (16) is sleeved on plunger pump housing (12) and placed into oil drum (9); oil drum (9) and base plate (10) are tightened with lock nut (11); diaphragm 18 is covered; oil seal c19 is placed in air chamber middle section 8 and push rod 21 is installed, and then it is installed on diaphragm 18; cone spring 20 is placed in the upper cavity of air chamber middle section 8 and diaphragm 18 is placed on it; air spring 4 is installed in air chamber top cover 5 and fastened to diaphragm 18 in air chamber middle section 8; the above parts are secured as follows with bolts 6 and flanges 7. Figure 6 The parking status sectional view is connected as one piece, and a certain amount of brake fluid 23 is added to the oil tank 9.

[0026] The working process of the air chamber in a brake assembly according to this utility model:

[0027] The brake 3 is connected to the air chamber 1 by the high-pressure oil pipe 2 and is installed on the axle. The two holes in the middle section 8 of the air chamber are respectively connected to the parking and brake air pipes.

[0028] 1. When the vehicle needs to move, the upper chamber of the middle section 8 of the air chamber is always filled with compressed air. The diaphragm 18 is compressed and bulges upward, compressing the air spring piston rod back. Under the action of the lower cone spring 16, the plunger 17 is pulled upward, the pressure disappears, the braking force is released, and the vehicle can move. (See attached diagram) Figure 4 As shown.

[0029] 2. When braking is required while the vehicle is in motion, pressing the brake pedal allows compressed air to enter the lower chamber of the middle section 8 of the air chamber. The diaphragm 18 in the lower chamber is compressed downwards, pressing against the plunger 17. Pressure is then generated in the working chamber of the plunger pump housing 12, thus applying pressure to the brakes. (See attached diagram.) Figure 5 As shown.

[0030] 3. When the vehicle is parked, there is no compressed air in the working chamber of the air chamber. At this time, the piston rod of the air spring 4 extends, and the pressure is transmitted to the plunger 17 through the two diaphragms 18 and the push rod 21. The hydraulic oil in the plunger pump housing 12 then generates pressure, which is transmitted to the upper cylinder of the brake, pushing the brake pads to press against the brake disc, thus generating braking force, as shown in the attached diagram. Figure 6 As shown.

[0031] The above embodiments should not limit the present invention in any way. All technical solutions obtained by equivalent substitution or equivalent conversion fall within the protection scope of the present invention.

Claims

1. The air chamber of a brake assembly, characterized in that: It consists of a gas spring (4), a gas chamber cover (5), bolts (6), flanges (7), a gas chamber middle section (8), an oil tank (9), a base plate (10), a lock nut (11), a plunger pump housing (12), oil seal a (13), oil seal b (14), a valve core (15), a lower cone spring (16), a plunger (17), a diaphragm (18), an oil seal c (19), an upper cone spring (20), a push rod (21), an oil seal d (22), and brake fluid (23); the gas chamber (1) is connected to the brake (3) by a high-pressure oil pipe (2) and is installed on the axle; the two holes of the gas chamber middle section (8) are connected to the parking air pipe and the brake air pipe respectively; the plunger pump housing (12) is fitted with oil seal a (13) and oil seal b (14); the valve core (15) is fitted with oil seal d (2) 2) Insert the plunger (17) into the corresponding hole at the bottom and insert it into the plunger pump housing (12). Put the lower cone spring (16) on the plunger pump housing (12) and put it into the oil drum (9). Tighten the oil drum (9) and the bottom plate (10) with the lock nut (11). Cover the diaphragm (18). Place the oil seal c (19) in the middle section of the air chamber (8) and install the push rod (21). Then install it on the diaphragm (18). Place the cone spring (20) in the upper cavity of the middle section of the air chamber (8) and place the diaphragm (18). Install the gas spring (4) in the upper cover of the air chamber (5) and fasten it on the diaphragm (18) of the middle section of the air chamber (8). Connect the upper cover of the air chamber (5), the middle section of the air chamber (8), and the oil drum (9) into one unit with bolts (6) and flanges (7). Add brake fluid (23) into the oil drum (9).

2. The air chamber of the brake assembly according to claim 1, characterized in that: The gas spring (4) is fastened into the hole of the upper cover (5) of the gas chamber (1).

3. The air chamber of the brake assembly according to claim 1, characterized in that: A through hole is drilled radially in the groove of oil seal b (14) on the upper part of the plunger pump housing (12).

4. The air chamber of the brake assembly according to claim 1, characterized in that: The plunger (17) is hollow with a stepped hole. A valve core (15) is placed in the lower hole, and a through hole is drilled in the middle radially.

Images