CN201412464Y - floating brake caliper - Google Patents

Abstract

A floating brake caliper includes a caliper cylinder with an oil inlet and an oil chamber, a piston, an oil seal, first and second brake pads, and a positioning reed. The oil inlet is connected with the oil chamber. The piston is set in the oil chamber in a movable manner. The oil seal is connected to the caliper cylinder and sleeved on the piston. The first brake pad abuts against the piston. The second brake pad is opposite to the first brake pad, and has a liner, a friction material plate and an extended flat portion. The liner is connected to the friction material plate and the extended plane part and is located between the caliper cylinder and the friction material plate. The extended plane portion is perpendicular to the liner and abuts against the cylinder block of the caliper. The positioning spring abuts between the caliper cylinder and the extending plane part. The utility model has the advantage that when the floating brake caliper is in a vibrating environment, the second brake pad will not knock against the inner wall of the caliper cylinder or even the brake disc, thus effectively suppressing the vibration caused by the vibration. noise.

Description

floating brake caliper

technical field

The utility model relates to a floating brake caliper, in particular to a floating brake caliper which can effectively suppress vibration and noise.

Background technique

Please refer to Fig. 1, Fig. 2 and Fig. 3, a kind of known floating brake caliper 1 mainly includes a caliper cylinder 10, a piston 20, an oil seal 30, a first brake pad (inner brake pad ) 41, a second brake plate (outer brake plate) 42, two positioning pins 50, a fixed frame 60 and a positioning reed 70.

The caliper cylinder 10 has an oil inlet 11 and an oil chamber 12 . The oil inlet 11 communicates with the oil chamber 12 . In addition, the oil inlet 11 is connected to a brake master cylinder (not shown), and the brake master cylinder, the oil inlet 11 and the oil chamber 12 all contain brake fluid (not shown).

As shown in FIG. 3 , the piston 20 is disposed in the oil chamber 12 in a movable manner.

The oil seal 30 is connected to the inner wall of the caliper cylinder 10 , and the oil seal 30 is sheathed on the outer wall of the piston 20 . Here, the oil seal 30 is used to prevent the brake oil in the oil chamber 12 from leaking out of the caliper cylinder 10 .

The first brake pad (inner brake pad) 41 abuts against the piston 20 . Here, as shown in FIG. 3 , the positioning reed 70 abuts between the caliper cylinder 10 and the first brake release plate 41 , so that the first brake release release plate 41 can be positioned on the fixing frame 60 . In other words, the first brake lever 41 is positioned on the fixing frame 60 by the downward pressing force provided by the positioning reed 70 .

The second brake pad (outer brake pad) 42 is adjacent to the inner wall of the caliper cylinder 10 , and the second brake pad 42 is opposite to the first brake pad 41 . Here, as shown in FIGS. 1 and 4 , the two positioning pins 50 are simultaneously installed in the caliper cylinder 10 , the fixed frame 60 and the second brake plate 42 , so that the caliper cylinder 10 , the fixed frame 60 can And the second brake to make sheet 42 combine together. In addition, as shown in FIG. 3 , the positioning spring 70 abuts between the caliper cylinder 10 and the second brake lever 42 . In other words, the second brake lever 42 is positioned in the caliper cylinder 10 by the downward pressing force provided by the positioning reed 70 . In addition, a brake disc D is disposed between the first brake pad 41 and the second brake pad 42 .

When a brake oil pressure is established by the brake master cylinder, the brake oil will flow into the oil chamber 12 through the oil inlet 11 , thereby pushing the piston 20 . Here, the piston 20 will overcome the resistance of the oil seal 30 and move to the right, and then push the first brake abutting against the piston 20 to move the plate 41 to the right. When the first brake pad 41 collides with the side surface of the brake disc D, the entire caliper cylinder 10 will move in the opposite direction (to the left) due to the reaction force, and thus push the first brake cylinder 10 adjacent to the caliper cylinder 10. The second brake makes the sheet 42 move to the left until the second brake makes the sheet 42 collide with the other side surface of the brake disc D. At this time, the first brake pad 41 and the second brake pad 42 can clamp the brake disc D to achieve a braking effect. It should be noted that when the piston 20 moves against the resistance of the oil seal 30, the oil seal 30 will elastically deform.

Then, when the brake master cylinder is released and the brake oil pressure disappears, the piston 20 will move in the reverse direction (to the left) due to the restoring force provided by the oil seal 30, thereby forcing part of the brake oil in the oil chamber 12 to flow to In the brake master cylinder, the first brake pad 41 and the second brake pad 42 no longer clamp the brake disc D. Here, the first brake pad 41 and the second brake pad 42 will also be separated from the brake disc D due to the rotation of the brake disc D.

However, since the second brake pad 42 is only adjacent to the inner wall of the caliper cylinder 10, when no brake oil pressure is established, the second brake pad 42 is on the inner wall of the caliper cylinder 10 and the brake disc. There will be a gap between D. Therefore, when the floating brake caliper 1 is in a vibrating environment, the second brake pad 42 will knock against the inner wall of the caliper cylinder 10 and the brake disc D, thus generating noise.

Utility model content

The purpose of the utility model is to provide a floating brake caliper, which can effectively suppress the noise generated by vibration.

The purpose of this utility model is achieved in this way, a floating brake caliper, including a caliper cylinder, with an oil inlet and an oil chamber, characterized in that the oil inlet is connected to the oil chamber; a piston with The moving method is set in the oil chamber; an oil seal is connected to the caliper cylinder and sleeved on the piston; a first brake lining shoe is abutted against the piston; A second brake pad, opposite to the first brake pad, has a liner, a friction material plate and an extended plane portion, wherein the liner is connected to the friction material plate and the extended plane portion , and is located between the caliper cylinder and the friction material plate, and the extension plane is perpendicular to the liner; a positioning spring abuts against the extension plane of the caliper cylinder and the second brake pad Between the parts, it is used to make the second brake block press against the caliper cylinder.

At the same time, according to the floating brake caliper of the present invention, it further includes at least one positioning pin and a fixing frame, wherein the positioning pin passes through the caliper cylinder, the fixing frame and the second brake pad. .

Also in the present invention, the first brake lever abuts between the positioning spring and the fixing frame.

The utility model has the advantage that since the second brake pad is pressed against the inner wall of the caliper cylinder by the large contact area provided by its extended plane portion, the second brake pad and the inner wall of the caliper cylinder There will be no gaps in between. Therefore, when the floating brake caliper is in a vibrating environment, the second brake pad will not knock against the inner wall of the caliper cylinder or even the brake disc D, thus effectively suppressing the noise caused by the vibration.

Description of drawings

Fig. 1 is a schematic top view of a known floating brake caliper;

Fig. 2 is a schematic front view of a known floating brake caliper;

Fig. 3 is the B-B sectional schematic diagram of Fig. 2;

Fig. 4 is the A-A sectional schematic diagram of Fig. 1;

Fig. 5 is a top view schematic diagram of the floating brake caliper of the present invention;

Fig. 6 is a schematic front view of the floating brake caliper of the present invention;

Fig. 7 is the B'-B' sectional schematic diagram of Fig. 6;

Fig. 8A is a schematic plan view of the second brake pad of the floating brake caliper of the present invention;

Fig. 8B is a schematic side view of Fig. 8A.

Description of main component symbols

1. 100～floating brake calipers

10. 110～caliper cylinder

11. 111～Oil inlet

12, 112～Oil room

20, 120～piston

30, 130～oil seal

41, 140～the first brake pad

42, 150 ~ the second brake pad

50, 170～locating pin

60, 180～Fixer

70, 160～positioning reed

151～Liner

152～Friction material plate

153～Extended plane part

154～through hole

D～brake disc

Detailed ways

In order to make the above-mentioned purpose, features and advantages of the present invention more comprehensible, preferred embodiments are specifically cited below and described in detail in conjunction with the accompanying drawings.

The preferred embodiment of the present utility model is hereby described in conjunction with the drawings.

Please refer to Fig. 5, Fig. 6 and Fig. 7, the floating brake caliper 100 of the present embodiment mainly includes a caliper cylinder 110, a piston 120, an oil seal 130, a first brake pad (inner brake pad) 140, a second brake pad (outer brake pad) 150, a positioning reed 160, two positioning pins 170 and a fixed frame 180.

The caliper cylinder 110 has an oil inlet 111 and an oil chamber 112 . The oil inlet 111 communicates with the oil chamber 112 . In addition, the oil inlet 111 is connected to a brake master cylinder (not shown), and the brake master cylinder, the oil inlet 111 and the oil chamber 112 all contain brake fluid (not shown).

As shown in FIG. 7 , the piston 120 is disposed in the oil chamber 112 in a movable manner.

The oil seal 130 is connected to the inner wall of the caliper cylinder 110 , and the oil seal 130 is sleeved on the outer wall of the piston 120 . Here, the oil seal 130 is used to prevent the brake oil in the oil chamber 112 from leaking out of the caliper cylinder 110 .

The first brake pad (inner brake pad) 140 abuts against the piston 120 .

As shown in Fig. 7, Fig. 8A and Fig. 8B, the second brake pad (outer brake pad) 150 is opposite to the first brake pad 140, and the second brake pad 150 has a liner 151, A friction material plate 152 , an extended plane portion 153 and two through holes 154 . The lining plate 151 is connected to the friction material plate 152 and the extending flat portion 153 , and the lining plate 151 is located between the caliper cylinder 110 and the friction material plate 152 . The extending plane portion 153 is perpendicular to the liner 151 . Two through holes 154 are formed on the liner 151 . In addition, as shown in FIG. 7 , a brake disc D is disposed between the first brake pad 140 and the second brake pad 150 .

As shown in Figure 5 and Figure 8A, the two positioning pins 170 are simultaneously installed in the through hole 154 of the caliper cylinder 110, the fixed frame 180 and the second brake plate 150, so that the caliper cylinder 110, the fixed frame 180 and the second brake pad 150 are combined together.

As shown in FIG. 7 , the positioning reed 160 abuts between the inner wall of the caliper cylinder 110 and the extension plane portion 153 of the second brake plate 150 , so that the second brake plate 150 is pressed against the inner wall of the caliper cylinder 110 . inner wall. In more detail, since the extension of the flat portion 153 can increase the contact area between the second brake lever 150 and the positioning reed 160 and the inner wall of the caliper cylinder 110, the second brake lever 150 can be reliably positioned. Press against the inner wall of the caliper cylinder 110 .

In addition, as shown in FIG. 7 , the positioning reed 160 can also abut between the inner wall of the caliper cylinder 110 and the first brake release plate 140 , and the first brake release plate 140 abuts against the positioning spring. between the sheet 160 and the fixing frame 180 , so that the first brake can be used to position the sheet 140 on the fixing frame 180 . In other words, the first brake lever 140 is positioned on the fixing frame 180 by the downward pressing force provided by the positioning spring 160 .

When a brake oil pressure is established by the brake master cylinder, the brake oil will flow into the oil chamber 112 through the oil inlet 111 , thereby pushing the piston 120 . Here, the piston 120 overcomes the resistance of the oil seal 130 and moves to the right, and then pushes the first brake abutting against the piston 120 to move the plate 140 to the right. When the first brake pad 140 collides with the side surface of the brake disc D, the entire caliper cylinder 110 will move in the opposite direction (to the left) due to the reaction force, and thus push against the caliper cylinder 110. The second brake pad 150 moves to the left until the second brake pad 150 touches the surface of the other side of the brake disc D. At this time, the first brake pad 140 and the second brake pad 150 can clamp the brake disc D to achieve a braking effect. It should be noted that when the piston 120 moves against the resistance of the oil seal 130 , the oil seal 130 will be elastically deformed.

Then, when the brake master cylinder is released and the brake oil pressure disappears, the piston 120 will move in the reverse direction (to the left) due to the restoring force provided by the oil seal 130, thereby forcing part of the brake oil in the oil chamber 112 to flow to In the brake master cylinder, the first brake pad 140 and the second brake pad 150 no longer clamp the brake disc D. Here, the first brake pad 140 and the second brake pad 150 are also separated from the brake disc D due to the rotation of the brake disc D. As shown in FIG.

As mentioned above, since the second brake pad 150 is pressed against the inner wall of the caliper cylinder 110 through the large contact area provided by its extended flat portion 153, the second brake pad 150 and the caliper cylinder 110 There will be no gaps between the inner walls. Therefore, when the floating brake caliper 100 is in a vibrating environment, the second brake pad 150 will not strike against the inner wall of the caliper cylinder 110 or even the brake disc D, thereby effectively suppressing the noise caused by the vibration. .

Claims (3)

1. A floating brake caliper, comprising: A caliper cylinder with an oil inlet and an oil chamber, characterized in that the oil inlet communicates with the oil chamber; A piston is arranged in the oil chamber in a movable manner; an oil seal is connected to the caliper cylinder and sleeved on the piston; a first brake pad abuts against the piston; a second brake pad is opposite to the first brake pad and has a liner, a friction material plate and an extended plane portion, wherein the liner is connected to the friction material plate and the extended plane portion, And located between the caliper cylinder and the friction material plate, the extending plane is perpendicular to the liner; a positioning reed abuts against the extending plane of the caliper cylinder and the second brake pad between, used to make the second brake block against the caliper cylinder. 2. The floating brake caliper according to claim 1, characterized in that it comprises at least one positioning pin and a fixing frame, wherein the positioning pin penetrates the caliper cylinder, the fixing frame and the second brake to make in the film. 3 . The floating brake caliper as claimed in claim 2 , wherein the first brake lever abuts between the positioning spring and the fixing frame. 4 .

Images