TW202001119A - Brake caliper device - Google Patents

Abstract

The present invention relates to a brake caliper device, comprising a cylinder, a piston, a fixing bracket and two brake pads. The cylinder is provided with a main pin hole and a sub pin hole. The sub pin hole is provided with a sleeve, in which a lubricant is accommodated for lubrication. The fixing bracket includes a frame body, a main pin inserted into the main pin hole and a sub pin inserted in the sleeve. Wherein, a containing space in the in the sleeve can be divided into a bottom space, a sliding portion, and a snake-shape space. Wherein, the smallest inner diameter of the sliding portion must be smaller than the maximum outer diameter of the sub pin at the sliding portion, so that the sleeve is subjected to the compression fitting of the sub pin. Therefore, the present invention can effectively improve the vibration interference of the engine when the brake caliper is actuated and avoid the violent shaking of the cylinder of the brake caliper on the fixing bracket, thereby reducing the knocking sound between the brake pads and the plug, or between the brake pads and the fixing bracket.

Description

Brake caliper device

The invention relates to a brake caliper device, in particular to a brake caliper device suitable for vehicles with a rocker-type engine.

Please refer to Figure 1 for the basic configuration diagram of the conventional locomotive. The figure shows a locomotive with a frame 2 as the main structure, and the main structure part is covered by the body shape 1, the steering handle 21 is pivotally connected to the frame 2 for the rider to control The driving direction of the locomotive. The front shock absorber 6 is connected to the steering handle 21, and the front wheel set 3 is pivotally connected to the front shock absorber 6. The front wheel set 3 includes a front rim 31, a front tire 32, and a front brake disc 33, and the front tire 32 is assembled to the front wheel On the circumference of the rim 31, the front brake disc 33 is locked to the front rim 31. Among them, as shown in the figure, the speed locomotive has a rocker arm 5 pivotally connected to the frame 2, and the rocker arm 5 is an engine, which constructs a group of vehicles equipped with a rocker engine. A rear shock absorber 7 is installed between the rocker arm 5 and the frame 2. The rear wheel set 4 is pivotally connected to the rocker arm 5. The rear wheel set 4 includes a rear rim 41, a rear tire 42 and a rear brake disc 43 The rear tire 42 is assembled on the circumference of the rear rim 41, and the rear brake disc 43 is locked to the rear rim 41.

The steering handle 21 is equipped with a brake master cylinder 81, which is connected to a front brake caliper device 87 mounted on the front shock absorber 6 via a front brake oil pipe 86; the brake master cylinder 81 is further connected with a brake oil pipe (not shown) Once installed on the rocker arm 5, the brake caliper device 93 is connected.

Please refer to FIG. 2 to FIG. 4, which are respectively a front view, a partial cross-sectional view from above, and an A-A partial cross-sectional view of the conventional rear brake caliper device. The figure shows a brake caliper device, which is the rear brake caliper device 93 as an example, but it is not limited to this, and the structure can also be applied to the front brake caliper device after adjustment. The rear brake caliper device 93 includes a cylinder 932, a piston 935, a fixing frame 931, and two clutch plates 933. The cylinder 932 has a main pin hole 9321 and a sub-pin hole 9322, the main pin hole 9321 is provided with a slip ester, the sub-pin hole 9322 is provided with a bush 934, and the bush 934 is provided with a port The long-hole elastic material of 9344, such as rubber, etc., also contains sliding ester for lubrication. The piston 935 is accommodated in the cylinder 932, and it is provided with displacement force by the change of oil pressure. The fixing frame 931 includes a frame body 9310, a main pin 9311 inserted in the main pin hole 9321, and a sub-pin 9312 inserted in the bushing 934, wherein the port of the main pin 9311 and the fixing frame 931 are provided There is a dustproof cover 937 to prevent dust and water from intruding into the kingpin hole 9321 and affecting the operation of the kingpin 9311. The second piece 933 is installed on the cylinder 932 via a bolt 936.

Please refer to FIG. 5 together, which is a sectional view taken along the line B-B in FIG. 4. When the auxiliary pin 9312 is inserted into the bushing 934, a receiving space 9340 in the bushing 934 can be divided into a bottom space 9341, a sliding place 9342, and a snake sleeve space 9343 by the auxiliary pin 9312. The inner space of the bushing 934 is covered with slippery ester. When the piston 935 is actuated to cause the disc 933 to clamp the rear brake disc 43, the cylinder 932 and the fixing frame 931 will be relatively displaced, that is, the auxiliary pin 9312 and the bushing Relative movement will occur in 934. At this time, the volume of the bottom space 9341 in the bush 934 will be changed. The gap is balanced with the flow of the snake sleeve space 9343. In other words, the minimum inner diameter D of the bushing 934 at the sliding place will be greater than the maximum outer diameter d of the auxiliary pin 9312 at the sliding place of the bushing. The gap between the two will be The channel between the bottom space 9341 and the snake sleeve space 9343 flows.

However, since the conventional rear brake caliper device is a vehicle type used for a rocker-type engine, when the rear brake caliper device 93 is disposed on the rocker arm 5 (engine) as shown in FIG. 1, the operation of the rear brake caliper device 93 will Obviously disturbed by engine vibration, at this time, the greater the vibration of the cylinder 932, the cylinder 932 will be shaken violently on the fixing frame 931, causing the knocking sound between the piece 933 and the latch 936 and the fixing frame 931 .

Because of this, the inventor, in the spirit of active invention, is anxious to think of a brake caliper device that can solve the above-mentioned problems. After several studies and experiments, the present invention has been completed.

The main purpose of the present invention is to provide a brake caliper device, which can effectively improve the vibration interference of the engine when the brake caliper is actuated by changing the cooperation relationship between the auxiliary pin and the bush, and avoid the violent brake caliper cylinder on the fixed frame Shaking, thus reducing the knocking sound between the blade and the latch and the fixing frame.

In order to achieve the above object, the brake caliper device of the present invention is installed on a locomotive, and includes a cylinder, a piston, a fixing frame, and two clutch plates. The cylinder body has a main pin hole and a pair of pin holes. The main pin hole contains a slipper ester, and the auxiliary pin hole is provided with a bushing, and the bushing content is provided with a slipper ester. The piston is accommodated in the cylinder body, and is provided with displacement force by the change of oil pressure. The fixing frame includes a frame body, a main pin inserted in the main pin hole and an auxiliary pin inserted in the bush, wherein one accommodating space in the bush is divided into a bottom space by the auxiliary pin, a Sliding place and a snake set of space. Secondly, the disc is arranged on the cylinder or the fixed frame, and is pushed by the piston to hold a brake disc; wherein, the minimum inner diameter of the sliding place must be smaller than the maximum outer diameter of the auxiliary pin at the sliding place, so that the bushing bears the auxiliary The pin is press-fitted, and there is no extra clearance at the sliding place.

With the above design, when a certain amount of compression occurs between the bush and the auxiliary pin, the cylinder can withstand a more stable support to resist the interference of vibration, and at the same time, the relative displacement change between the cylinder and the fixing frame will be reduced, effectively avoiding the order A knocking sound is produced between the piece and the bolt and the fixing frame.

At least one auxiliary pin groove portion may be provided on the surface of the auxiliary pin, so that the slippery ester can circulate between the bottom space and the snake sleeve space. In this way, even if the present invention combines the bush and the auxiliary pin in a press-fit manner, when the cylinder and the fixing frame are relatively moved, the bottom pin and the snake sleeve space can still be maintained through the auxiliary pin groove. Circulation, maintain the balance of internal pressure.

At least one flow channel may be provided in the auxiliary pin so that the slippery ester can circulate between the bottom space and the snake sleeve space. In this way, even if the present invention combines the bush and the auxiliary pin in a press-fit manner, when the cylinder and the fixing frame are relatively moved, the circulation of slip ester in the bottom space and the snake sleeve space can be maintained through the at least one channel Sex to maintain a balance of internal pressure.

At least one bushing groove portion can be dug in the inner diameter of the bushing, so that the slippery ester can circulate between the bottom space and the snake bushing space. In this way, even if the present invention combines the bush and the auxiliary pin in a press-fit manner, when the cylinder and the fixing frame are relatively moved, the slip groove in the bottom space and the snake sleeve space can be maintained through the bush groove portion Circulation, maintain the balance of internal pressure.

A dustproof sleeve may be provided between the port of the above-mentioned kingpin and the fixing frame, so as to prevent dust and water from intruding into the hole of the kingpin and affecting the action of the kingpin.

The above summary and the following detailed description are of exemplary nature to further illustrate the patent application scope of the present invention. The other objects and advantages of the present invention will be explained in the following description and illustration.

Please refer to FIGS. 6 to 8, which are respectively a front view, a partial cross-sectional view from above and a partial cross-sectional view of A-A of FIG. 6 after the first embodiment of the invention. The figure shows a brake caliper device. In this embodiment, the rear brake caliper device 83 is taken as an example, but it is not limited to this, and the structure can also be applied to the front brake caliper device after adjustment. The rear brake caliper device 83 is installed on a rocker arm in the present invention, and in this embodiment, the rocker arm is an engine. The swing engine can also refer to FIG. 1 of the conventional technology, where, After the present invention, the brake caliper device 83 includes a cylinder 832, a piston 835, a fixing frame 831, and two levers 833.

The cylinder 832 has a main pin hole 8321 and a sub-pin hole 8322. The main pin hole 8321 is provided with a slipper ester. The sub-pin hole 8322 is provided with a bushing 834. The bushing 834 is provided with a port 8344's long-hole elastic material, such as rubber, also contains slippery ester for lubrication. The piston 835 is accommodated in the cylinder block 832, and it provides displacement force by the change of oil pressure. The fixing frame 831 includes a frame body 8310, a main pin 8311 inserted in the main pin hole 8321, and an auxiliary pin 8312 inserted in the bushing 834, wherein the port of the main pin 8311 and the fixing frame 831 are provided There is a dustproof cover 837 to avoid the intrusion of dust and water into the kingpin hole 8321 in the environment and affect the operation of the kingpin 8311. In this embodiment, the second piece 833 is arranged on the cylinder 832 via a plug 836, but not limited to this, it can also be arranged on the fixing frame 831, which will be pushed by the piston 835 to clamp a rear brake Disc 43.

In addition, please refer to FIG. 9 together, which is a sectional view taken along the line C-C in FIG. 8 of the first embodiment of the present invention. When the auxiliary pin 8312 is inserted into the bushing 834, an accommodating space 8340 in the bushing 834 can be divided into a bottom space 8341, a sliding place 8342, and a snake sleeve space 8343 by the auxiliary pin 8312. In this embodiment, the present invention is characterized in that the minimum inner diameter D of the sliding place 8342 must be smaller than the maximum outer diameter d of the auxiliary pin 8312 at the sliding place 8342, that is, when the auxiliary pin 8312 is inserted into the bushing 834, the liner The long hole of the sleeve 834 has a certain amount of compression, so that the cylinder 832 can be more stably supported to resist vibration. However, this will prevent the slippery ester in the bushing 834 from flowing between the bottom space 8341 and the snake sleeve space 8343 when the cylinder 832 and the fixing frame 831 move relatively. Therefore, as shown in FIG. 9, three auxiliary pin grooves 83121 are provided on the surface of the auxiliary pin 8312 so that the slippery ester can circulate between the bottom space 8341 and the sleeve space 8343. In this way, even if the present invention combines the bush 834 and the auxiliary pin 8312 in a press-fit manner, when the cylinder 832 and the fixing frame 831 move relatively, the bottom space 8341 and the snake can still be maintained through the auxiliary pin groove 83121 The fluidity of the slip ester in the sleeve space 8343 maintains the balance of internal pressure.

Next, please refer to FIGS. 10 and 11, which are a cross-sectional view of the A-A part of FIG. 6 and a cross-sectional view of the D-D part of FIG. 10 of the second embodiment of the present invention, respectively. As shown in the figure, in this embodiment, a flow channel 83122 is provided in the auxiliary pin 8312, so that the slippery ester can circulate between the bottom space 8341 and the snake sleeve space 8343. In this way, even if the present invention combines the bushing 834 and the auxiliary pin 8312 in a press-fit manner, when the cylinder 832 and the fixing frame 831 move relatively, the bottom space 8341 and the snake sleeve space can still be maintained through the flow channel 83122 The flowability of 8343 internal slip ester maintains the balance of internal pressure.

Next, please refer to FIG. 12 and FIG. 13, which are the A-A partial cross-sectional view of FIG. 6 and the E-E partial cross-sectional view of FIG. 12 of the third embodiment of the present invention, respectively. As shown in the figure, in this embodiment, the bushing 834 has seven bushing grooves 8345 dug in the inner diameter, so that the slippery ester can circulate between the bottom space 8341 and the snake sleeve space 8343. In this way, even if the present invention combines the bushing 834 and the auxiliary pin 8312 in a press-fit manner, when the cylinder 832 and the fixing frame 831 move relatively, the bottom space 8341 and the snake sleeve can still be maintained through the bushing groove portion 8345 The fluidity of slip ester in space 8343 maintains the balance of internal pressure.

Finally, please refer to FIG. 14, which is a measurement diagram of the matching dimensions of the auxiliary pin and the bush of the rear brake caliper device according to the present invention compared with the conventional one. In this embodiment, the rear brake caliper device 83 is disposed on a rocker arm, and the rocker arm of the present invention is an engine. Therefore, the operation of the rear brake caliper device 83 will be disturbed by engine vibration. As shown in FIG. 14, the abscissa system is the engine speed (rpm), and the ordinate system represents the change in vibration acceleration (m/s ² ) when the rear brake caliper device 83 is disturbed by engine vibration. Among them, curve A and Curve B represents the cylinder 932 of the conventional rear brake caliper device 93 under different (minimum inner diameter D of the bushing at the sliding place)-(maximum outer diameter d of the auxiliary pin at the sliding place) on different engines The vibration acceleration curve plotted by the rotation speed, and curve C and curve D respectively indicate that the cylinder block 832 of the brake caliper device 83 after the present invention is different (the minimum inner diameter D of the bush at the sliding place)-(the auxiliary pin is sliding Where the maximum outer diameter d) is the vibration acceleration curve plotted at different engine speeds, and curve E is directly measured by the engine to measure the vibration acceleration curve plotted at different engine speeds.

Among them, as shown in curve A and curve B, when the difference between Dd is 0.2mm or 0.1mm, it means that there is a gap between the bush 934 and the auxiliary pin 9312 of the conventional rear brake caliper device 93, so that the ester can pass directly The gap between the sliding place 9342 flows between the bottom space 9341 and the snake sleeve space 9343. However, as the engine speed increases, the greater the vibration amplitude of the cylinder 932 will cause the cylinder 932 to shake violently on the fixing frame 931, thereby causing knocks between the blade 933 and the latch 936 and the fixing frame 931 Sound problem.

In contrast, as shown by curve C and curve D, when the difference between Dd is -0.1 mm or -0.2 mm, it means that the auxiliary pin 8312 must cause a certain pressure on the long hole of the bush 834 when it is inserted into the bush 834 Volume, so that the cylinder 832 can be more stably supported to resist vibration. Therefore, as the engine speed increases, the vibration amplitude of the cylinder 832 can be kept within a certain range with the vibration amplitude of the engine itself, without excessive shaking and vibration, so the cylinder 832 can maintain slight vibration on the fixing frame 831 In order to avoid the problem of knocking sound between the piece 833, the latch 836 and the fixing frame 831.

The above embodiments are only examples for the convenience of description, and the scope of rights claimed by the present invention should be subject to the scope of the patent application, and not limited to the above embodiments.

1‧‧‧Body styling 2‧‧‧Frame 21‧‧‧ Steering handle 3‧‧‧Front wheel group 31‧‧‧Front rim 32‧‧‧Front tire 33‧‧‧Front brake disc 4‧‧‧Rear Wheel set 41‧‧‧ Rear rim 42‧‧‧ Rear tire 43‧‧‧ Rear brake disc 5‧‧‧ Rocker arm 6‧‧‧ Front shock absorber 7‧‧‧ Rear shock absorber 81‧‧‧ Brake Master pump 83,93‧‧‧ Rear brake caliper device 831,931‧‧‧Fixed frame 8310,9310‧‧‧Frame body 8311,9311‧‧‧Master pin 8312,9312‧‧‧Auxiliary pin 83121‧‧‧Auxiliary pin slot 83122‧‧‧ runner 832,932‧‧‧ cylinder 8321,9321‧‧‧pin hole 8322,9322‧‧‧pin hole 833,933‧‧‧reed piece 834,934‧‧‧ bushing 8340,9340‧‧‧capacity Set space 8341,9341‧‧‧Bottom space 8342,9342‧‧‧Sliding place 8343,9343‧‧‧Sleeve space 8344,9344‧‧‧Port 8345‧‧‧ Bush groove part 835,935‧‧‧Piston 836,936‧‧ ‧Latch 837,937‧‧‧Dust cover 86‧‧‧Front brake hose 87‧‧‧Front brake caliper device D‧‧‧Minimum inner diameter d‧‧‧Maximum outer diameter

Figure 1 is a basic configuration diagram of a conventional locomotive. FIG. 2 is a front view of the conventional rear brake caliper device. FIG. 3 is a partial cross-sectional view of the conventional rear brake caliper device. FIG. 4 is a sectional view taken along line A-A of FIG. 2. Fig. 5 is a sectional view taken along line B-B in Fig. 4. 6 is a front view of the brake caliper device after the first embodiment of the present invention. 7 is a partial cross-sectional view of the brake caliper device after the first embodiment of the present invention. 8 is a cross-sectional view taken along the line A-A of FIG. 6 of the first embodiment of the present invention. 9 is a cross-sectional view of the C-C part of FIG. 8 of the first embodiment of the present invention. Fig. 10 is a sectional view taken along the line A-A of Fig. 6 of the second embodiment of the present invention. 11 is a cross-sectional view of the D-D part of FIG. 10 of the second embodiment of the present invention. 12 is a cross-sectional view taken along the line A-A of FIG. 6 of the third embodiment of the present invention. FIG. 13 is a sectional view taken along the line E-E in FIG. 12 of the third embodiment of the present invention. FIG. 14 is a measurement diagram of the matching dimensions of the auxiliary pin and the bush of the rear brake caliper device according to the present invention compared with the conventional one.

43‧‧‧ Rear brake disc

831‧‧‧Fixing frame

8312‧‧‧ Vice sales

83121‧‧‧Deputy Pin Groove

832‧‧‧Cylinder

8322‧‧‧Pin hole

833‧‧‧coming movie

834‧‧‧ Bush

8340‧‧‧accommodation space

8341‧‧‧Bottom space

8342‧‧‧Slide

8343‧‧‧Snake sleeve space

8344‧‧‧port

835‧‧‧ Piston

836‧‧‧bolt

Claims (5)

A brake caliper device, which is arranged on a locomotive, includes: a cylinder body with a main pin hole and a pair of pin holes, a slipper ester is accommodated in the main pin hole, and a bush is installed in the auxiliary pin hole , The bushing is provided with slipper ester; a piston, accommodated in the cylinder body, is provided with displacement force by the change of oil pressure; a fixed frame, including a frame body, a main pin inserted in the main pin hole And a sub-pin inserted into the bush, wherein a receiving space in the bush is divided into a bottom space, a sliding place and a snake sleeve space by the sub-pin; It is arranged on the cylinder or the fixing frame, and is pushed by the piston to hold a brake disc; wherein, the minimum inner diameter of the sliding place must be smaller than the maximum outer diameter of the auxiliary pin at the sliding place, so that the lining The sleeve bears the compression fit of the auxiliary pin, and the sliding place has no extra clearance. For example, the brake caliper device according to item 1 of the patent application, wherein the surface of the auxiliary pin is provided with at least one auxiliary pin groove portion, so that the slippery ester can circulate between the bottom space and the snake sleeve space. For example, the brake caliper device according to item 1 of the patent application, wherein at least a first channel is provided in the auxiliary pin, so that the slippery ester can circulate between the bottom space and the snake sleeve space. For example, the brake caliper device according to item 1 of the patent application, wherein the inner diameter of the bush is dug with at least one bush groove portion, so that the slippery ester can circulate between the bottom space and the snake sleeve space. For example, the brake caliper device according to item 1 of the patent application, wherein a dust jacket is provided between the port of the kingpin and the fixing frame to prevent the intrusion of dust and water from the environment into the kingpin hole and affecting the action of the kingpin.

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