Liquid demand control structure for brake calipers

Abstract

The utility model discloses a liquid demand control structure for brake calipers. Comprising a brake caliper body, a piston, a separation ring, a threaded sleeve, a threaded rod and a sealing leather cup. A piston, a separation ring, a thread sleeve and a screw rod are arranged in a cylinder hole of the brake caliper body, the piston is arranged in the cylinder hole of the brake caliper body through a sealing ring, the thread sleeve is arranged in the piston through the separation ring, the screw rod is arranged in the thread sleeve through threads, the piston and the separation ring are in non-sealing connection, and the separation ring and the thread sleeve are in sealing connection. By means of the structure, when the calipers conduct braking work, the pressure building space of the calipers is compressed, the liquid amount needed for pressure building of the calipers is reduced, and the needed brake pedal feeling is met; meanwhile, the structure can be controlled and adjusted, so that the brake pedal feeling of the vehicle is adjusted, and different vehicle requirements are met.

Description

Technical Field

[0001] The utility model relates to a component of a vehicle braking system, in particular to a required fluid quantity control structure for a brake caliper. Background Art

[0002] As the degree of electrification of existing vehicles increases, the stability of the fluid volume required for calipers during vehicle calibration is becoming increasingly higher. The stability of the fluid volume required for existing ordinary calipers cannot meet the vehicle calibration requirements. Utility Model Content

[0003] Aiming at the problem that the required fluid volume of the caliper is unstable in actual use, which leads to difficulty in vehicle calibration, the utility model proposes a required fluid volume control structure for a brake caliper, which is particularly used in a brake in an automobile braking system.

[0004] The utility model adopts the following technical solutions to solve the problem:

[0005] The utility model comprises a brake caliper body, a piston, a separation ring, a screw sleeve, a screw rod and a sealing leather cup; the piston, the separation ring, the screw sleeve and the screw rod are arranged in the cylinder hole of the brake caliper body, the piston is arranged in the cylinder hole of the brake caliper body through a sealing ring, the screw sleeve is arranged in the piston through the separation ring, the screw rod is arranged in the screw sleeve through a thread, the piston and the separation ring are non-sealedly connected, and the separation ring and the screw sleeve are sealedly connected.

[0006] The outer peripheral surface of the separation ring is provided with an axial oil replenishing groove, so that the cylinder hole space of the brake caliper body located at the rear end of the piston is connected with the inner space of the front end of the piston through the oil replenishing groove.

[0007] The oil supply grooves are arranged in plurality, the plurality of oil supply grooves are evenly spaced along the circumferential direction, and each oil supply groove is arranged along the axial direction.

[0008] The head of the separation ring is interference pressed into the bottom of the cylinder hole of the brake caliper body and is sealed and connected with an O-ring.

[0009] The outer periphery of the screw sleeve is provided with an annular leather cup groove, and a sealing leather cup is arranged in the leather cup groove.

[0010] The separation ring is interference fit with the brake caliper body.

[0011] Beneficial effects of the utility model:

[0012] The utility model can compress / release the internal space of the caliper and adjust the required fluid volume of the caliper through electrical control and mechanical transmission to meet the stability requirement of the required fluid volume calibrated by the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the assembly structure of the utility model;

[0014] Figure 2 a is a sectional view of the partition ring of the utility model;

[0015] Figure 2 b is a stereogram of the partition ring of the utility model;

[0016] Figure 3 a is a cross-sectional view of the screw sleeve of the utility model;

[0017] Figure 3 b is a stereoscopic diagram of the screw sleeve of the present utility model.

[0018] In the figure: 1. brake caliper body, 2. piston, 3. separator ring, 4. screw sleeve, 5. screw, 6. sealing leather cup, 7. O-ring, a. oil filling groove, b. leather cup groove. DETAILED DESCRIPTION

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementations.

[0020] like Figure 1 As shown, the specific structure includes a brake caliper body 1, a piston 2, a separation ring 3, a screw sleeve 4, a screw 5 and a sealing leather cup 6; the cylinder hole of the brake caliper body 1 is equipped with a piston 2, a separation ring 3, a screw sleeve 4 and a screw 5, the cylinder hole of the brake caliper body 1 is equipped with a piston 2 through a sealing ring, the piston 2 is equipped with a screw sleeve 4 through a separation ring 3, the screw sleeve 4 is equipped with a screw 5 through a thread, the piston 2 and the separation ring 3 are non-sealed, and the separation ring 3 and the screw sleeve 4 are sealed. When braking, the power head is controlled so that the power head drives the screw sleeve to rotate, and the screw sleeve moves axially relative to the separation ring to compress the pressure-building space inside the caliper.

[0021] like Figure 2 As shown, the outer peripheral surface of the separation ring 3 is provided with an axial oil replenishing groove a, so that the cylinder hole space of the brake caliper body 1 located at the rear end of the piston 2 is connected with the space inside the front end of the piston 2 as a pressure building chamber through the oil replenishing groove a.

[0022] A plurality of oil supply grooves a are provided, and the plurality of oil supply grooves a are evenly spaced along the circumferential direction, and each oil supply groove a is arranged along the axial direction.

[0023] The head of the separation ring 3 is interference pressed into the bottom of the cylinder hole of the brake caliper body 1 and is sealed and connected with an O-ring 7.

[0024] like Figure 3 As shown, an annular leather cup groove b is provided on the outer periphery of the screw sleeve 4 , and a sealing leather cup 6 is installed in the leather cup groove b. The sealing leather cup 6 is used for sealing the screw sleeve 4 and the separation ring 3 .

[0025] The separation ring 3 and the brake caliper body 1 are interference fit, and can also be fixedly connected by other connection methods.

[0026] The cross-sectional area of ​​the screw sleeve 4 should be larger to meet the smaller stroke and compress the larger space.

[0027] When the brake is applied, the power head can be controlled by software, driven by the motor, and driven by gears. bring The screw 5 in the dynamic caliper rotates; at the same time, since the screw sleeve 4 is limited by the brake caliper, when the screw 5 rotates, the screw sleeve 4 moves axially toward the piston 2. When the screw sleeve 4 moves axially forward, the space of the built-in pressure chamber in the caliper will be compressed, thereby reducing the amount of fluid required by the brake caliper when building brake pressure.

[0028] Controlling the movement of this mechanism and cooperating with normal caliper braking work can meet the different fluid volume requirements of the caliper.

[0029] Therefore, the utility model can compress / release the internal space of the caliper and adjust the required fluid volume of the caliper through electrical control and mechanical transmission to meet the stability requirement of the required fluid volume calibrated by the vehicle.

[0030] The above specific implementation modes are used to explain the present invention rather than to limit the present invention. Any modification and change made to the present invention within the spirit of the present invention and the protection scope of the claims shall fall within the protection scope of the present invention.

Claims

1. A brake caliper fluid quantity control structure, characterized in that: The invention comprises a brake caliper body (1), a piston (2), a separating ring (3), a screw sleeve (4), a screw rod (5) and a sealing cup (6); the cylinder hole of the brake caliper body (1) is provided with a piston (2), a separating ring (3), a screw sleeve (4) and a screw rod (5); the cylinder hole of the brake caliper body (1) is provided with a piston (2) via a sealing ring; the screw sleeve (4) is provided in the piston (2) via a separating ring (3); the screw rod (5) is provided in the screw sleeve (4) via a thread; the piston (2) and the separating ring (3) are connected in a non-sealed manner; and the separating ring (3) and the screw sleeve (4) are connected in a sealed manner.

2. A brake caliper fluid quantity control structure according to claim 1, characterized in that: The outer peripheral surface of the separation ring (3) is provided with an axial oil replenishing groove (a), so that the cylinder bore space of the brake caliper body (1) located at the rear end of the piston (2) is connected to the space inside the front end of the piston (2) through the oil replenishing groove (a).

3. A brake caliper fluid quantity control structure according to claim 2, characterized in that: The oil supply grooves (a) are provided in plurality, the plurality of oil supply grooves (a) are evenly spaced along the circumferential direction, and each oil supply groove (a) is arranged along the axial direction.

4. The brake caliper fluid quantity control structure according to claim 1, characterized in that: The head of the separation ring (3) is interference-pressed into the bottom of the cylinder hole of the brake caliper body (1) and is sealed and connected with an O-ring (7).

5. The brake caliper fluid quantity control structure according to claim 1, characterized in that: The outer periphery of the screw sleeve (4) is provided with an annular leather cup groove (b), and a sealing leather cup (6) is installed in the leather cup groove (b).

6. The brake caliper fluid quantity control structure according to claim 1, characterized in that: The separation ring (3) is interference fit with the brake caliper body (1).

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