CN116906479A - Friction plate abrasion detection device and brake caliper assembly - Google Patents
Friction plate abrasion detection device and brake caliper assembly Download PDFInfo
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- CN116906479A CN116906479A CN202311063116.5A CN202311063116A CN116906479A CN 116906479 A CN116906479 A CN 116906479A CN 202311063116 A CN202311063116 A CN 202311063116A CN 116906479 A CN116906479 A CN 116906479A
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- probe
- alarm
- friction plate
- friction
- detection device
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
- F16D66/02—Apparatus for indicating wear
- F16D66/021—Apparatus for indicating wear using electrical detection or indication means
- F16D66/022—Apparatus for indicating wear using electrical detection or indication means indicating that a lining is worn to minimum allowable thickness
- F16D66/023—Apparatus for indicating wear using electrical detection or indication means indicating that a lining is worn to minimum allowable thickness directly sensing the position of braking members
- F16D66/024—Sensors mounted on braking members adapted to contact the brake disc or drum, e.g. wire loops severed on contact
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
- F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
本发明涉及制动技术领域，提供摩擦片磨损检测装置和制动卡钳总成。摩擦片磨损检测装置包括：多个检测器，间隔分布在制动卡钳的一对摩擦片的周向外围，每个所述检测器包括连接件和探针，所述连接件的两端分别连接所述一对摩擦片的背板，所述探针连接所述连接件的本体；多个报警器，与所述多个检测器对应设置，所述探针自所述报警器的开口端悬空伸入所述报警器；其中，随所述连接件的任意端活动，所述连接件的本体带动所述探针活动，于所述探针接触所述报警器的内壁，所述报警器报警。本发明通过检测器与报警器的配合，能够简便、有效地实现对摩擦片的过磨、偏磨等磨损情况的检测。
The invention relates to the field of braking technology and provides a friction plate wear detection device and a brake caliper assembly. The friction plate wear detection device includes: a plurality of detectors, which are spaced around the circumferential periphery of a pair of friction plates of the brake caliper. Each of the detectors includes a connecting piece and a probe, and the two ends of the connecting piece are connected respectively. The back plate of the pair of friction plates, the probe connected to the body of the connector; a plurality of alarms, corresponding to the plurality of detectors, the probe suspended from the open end of the alarm Stretch into the alarm; wherein, as any end of the connector moves, the body of the connector drives the probe to move, and when the probe contacts the inner wall of the alarm, the alarm . Through the cooperation of the detector and the alarm, the present invention can simply and effectively detect wear conditions such as over-wear and eccentric wear of the friction plate.
Description
Technical Field
The invention relates to the technical field of braking, in particular to a friction plate abrasion detection device and a brake caliper assembly.
Background
The brake calipers are key components for automobile braking. The brake calipers push a pair of friction plates to press the brake disc through the piston, so that braking force is generated. With use, the friction plate is worn, and detection is needed to ensure the reliability of braking.
At present, the abrasion condition of the friction plate is judged by measuring the thickness of the friction plate and comparing the thickness with the initial thickness; the method is difficult to detect, has complex logic, and cannot simply and effectively realize the abrasion detection of the friction plate.
It should be noted that the information disclosed in the foregoing background section is only for enhancement of understanding of the background of the invention and thus may include information that does not form the prior art that is already known to those of ordinary skill in the art.
Disclosure of Invention
In view of the above, the invention provides a friction plate abrasion detection device and a brake caliper assembly, which can simply and effectively detect abrasion conditions such as overgrinding, eccentric wear and the like of a friction plate through the cooperation of a detector and an alarm.
According to an aspect of the present invention, there is provided a friction plate wear detection device including: the detectors are distributed at the periphery of the pair of friction plates of the brake caliper at intervals, each detector comprises a connecting piece and a probe, two ends of the connecting piece are respectively connected with the back plates of the pair of friction plates, and the probes are connected with the body of the connecting piece; the probes are suspended from the opening ends of the alarms and extend into the alarms; the body of the connecting piece drives the probe to move along with the movement of any end of the connecting piece, the probe contacts the inner wall of the alarm, and the alarm alarms.
According to the friction plate abrasion detection device, the friction plates are subjected to multi-point detection through the plurality of detectors and the plurality of alarms which are distributed on the periphery of the pair of friction plates of the brake caliper at intervals, so that the abrasion condition of the friction plates can be found in time; the detector comprises a connecting piece, a probe and a sensor, wherein the two ends of the connecting piece are respectively connected with the back plate of the pair of friction plates, and the probe is connected with the body of the connecting piece; the probe is suspended and extends into the alarm, when the probe contacts the inner wall of the alarm, the abrasion of the corresponding friction plate reaches a set limit value (the abrasion of a pair of friction plates can reach the limit value uniformly, the abrasion of one side of any friction plate can reach the limit value, and the abrasion difference of two sides can reach the limit value), the alarm alarms, and the abrasion condition of the friction plates is notified;
therefore, the friction plate abrasion detection device can simply and effectively detect abrasion conditions such as overgrinding, eccentric wear and the like of the friction plate through the cooperation of the detector and the alarm.
In some embodiments, the probe and the inner wall of the alarm are made of conductive materials, and the probe is electrically connected with the inner wall of the alarm through a wire.
Therefore, when the probe contacts the inner wall of the alarm, the probe and the alarm form a conductive path to trigger the alarm to alarm, so that the abrasion conditions such as overgrinding, eccentric wear and the like of the friction plate can be simply, conveniently and effectively detected.
In some embodiments, the open end of the alarm is provided with an insulating sealing ring, and the probe penetrates through and is movably supported on the insulating sealing ring.
Through insulating sealing washer, on the one hand realizes insulating isolation, on the other hand supports the probe, ensures that the probe does not contact the inner wall of alarm under the condition that friction disc is unworn and wearing and tearing do not reach the limit value.
In some embodiments, the outer wall of the alarm is provided with an insulating housing.
Through insulating shell, avoid the alarm to interfere with other devices.
In some embodiments, the connecting piece is a torsion spring, two ends of the torsion spring are respectively connected with the back plates of the pair of friction plates, and the probe is connected with the body of the torsion spring; wherein the torsion spring is compressed in the event that the friction plate is urged toward the brake disc and the friction plate wears.
The structure of the torsion spring is utilized to enable the two ends of the torsion spring to be respectively connected with the backboard and the body of the pair of friction plates to be connected with the probe, the torsion spring is compressed to generate deformation under the condition that the friction plates are worn, the probe is driven to move, and the position change of the friction plates caused by the wear is transmitted, so that the wear conditions of overgrinding, eccentric wear and the like of the friction plates are detected through the extremely simple structure of the compression of the torsion spring and the movement of the probe; in addition, the elasticity of the torsion spring is utilized, and the torsion spring is compressed under the condition that the friction plate is pushed to the brake disc, so that when braking is released, the torsion spring can drive the friction plate to return, the return and abrasion detection functions of the friction plate are integrated, and the structural design of the brake caliper assembly is simplified.
In some embodiments, the probe is staked with the body of the torsion spring.
Through movable riveting, the probe can swing around the riveting point, and when the friction plate is worn on one side, the torsion spring drives the probe to swing so as to realize the detection of the eccentric wear of the friction plate. Of course, when a pair of friction plates are evenly worn, the torsion spring can drive the probe to contact the bottom wall of the alarm, so that wear detection is realized.
In some embodiments, the probe is integrally formed with the body of the torsion spring.
Through integrated into one piece, simplify the structural design of detector, and take place unilateral wearing and tearing/even wearing and tearing when the friction disc, the torsional spring drives the lateral wall/diapire of probe contact alarm, realizes the detection to the wearing and tearing condition such as friction disc overgrinding, eccentric wear.
In some embodiments, the distance between the probe and the bottom wall of the alarm in the initial state is determined based on the symmetric wear limit values of the pair of friction plates.
The distance between the probe and the bottom wall of the alarm in the initial state is determined according to the symmetrical abrasion limit value of the pair of friction plates, so that when the pair of friction plates uniformly abrade to reach the limit value, the probe contacts the bottom wall of the alarm along with the position change of the pair of friction plates caused by abrasion, and the alarm is triggered to alarm.
In some embodiments, the distance between the probe and the sidewall of the alarm in the initial state is determined based on a single-side wear limit value and/or a double-side wear difference limit value of the pair of friction plates.
Brake calipers are in operation, for a variety of reasons, which can result in one-sided friction plate bias; the distance between the probe and the side wall of the alarm in the initial state is determined according to the limit value of single-side abrasion of the pair of friction plates, when the abrasion of the friction plates on one side reaches the limit value, the probe contacts with the side wall of the alarm along with the position change of the corresponding friction plates caused by abrasion, and the alarm is triggered to alarm. In addition, in addition to the mode of judging whether the friction plate needs to be replaced by detecting whether the friction plate on one side is worn to the limit state, whether the friction plate needs to be replaced can be judged by detecting whether the wear difference value of the friction plates on the two sides is in the limit state (namely, detecting the asymmetric wear state) (namely, in the initial state, the distance between the probe and the side wall of the alarm is determined according to the limit value of the wear difference value on the two sides of the pair of friction plates); therefore, irreversible damage to the brake disc and the brake calipers caused by asymmetric wear can be avoided, great waste caused by the asymmetric wear to vehicle energy consumption is reduced, and the maintenance cost of the vehicle can be saved because only one side friction plate can be replaced. In addition, the distance between the probe and the side wall of the alarm can be determined by simultaneously combining and comparing the limit value of the single-side abrasion and the limit value of the two-side abrasion of the pair of friction plates; therefore, the method has the advantages of a single-side wear limit value and two-side wear difference value limit value alarm mechanism.
According to yet another aspect of the present invention, there is provided a brake caliper assembly configured with the friction plate wear detection device described above.
The brake caliper assembly is provided with the friction plate abrasion detection device, and abrasion conditions such as overgrinding, eccentric wear and the like of the friction plate can be simply, conveniently and effectively detected through the cooperation of the detector and the alarm.
Compared with the prior art, the invention has the beneficial effects that at least:
according to the friction plate abrasion detection device, the friction plates are subjected to multi-point detection through the plurality of detectors and the plurality of alarms which are distributed at intervals on the circumferential periphery of the pair of friction plates of the brake caliper, so that the abrasion condition of the friction plates can be found in time; the detector comprises a connecting piece, a probe and a sensor, wherein the two ends of the connecting piece are respectively connected with the back plate of the pair of friction plates, and the probe is connected with the body of the connecting piece; the probe is suspended and extends into the alarm, when the probe contacts the inner wall of the alarm, the abrasion of the corresponding friction plate reaches a set limit value (the abrasion of a pair of friction plates can reach the limit value uniformly, the abrasion of one side of any friction plate can reach the limit value, and the abrasion difference of two sides can reach the limit value), the alarm alarms, and the abrasion condition of the friction plates is notified;
therefore, the friction plate abrasion detection device can simply and effectively detect abrasion conditions such as overgrinding, eccentric wear and the like of the friction plate through the cooperation of the detector and the alarm.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention. It is evident that the figures described below are only some embodiments of the invention, from which other figures can be obtained without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram showing the configuration of a friction plate wear detection device in combination with a brake caliper according to an embodiment of the present invention;
FIG. 2 is a schematic illustration of a pair of friction plates uniformly worn to a limit in an embodiment of the present invention;
FIG. 3 is a schematic diagram showing the limit value of the wear difference on both sides of the friction plate in the embodiment of the invention.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art.
The drawings are merely schematic illustrations of the present invention and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in software or in one or more hardware modules or integrated circuits or in different networks and/or processor devices and/or microcontroller devices.
Furthermore, in the description of the present invention, the terms "upper," "lower," "left," "right," and the like refer to an orientation or positional relationship based on that shown in the drawings, for convenience of description and simplicity of description, and do not denote or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
It should be noted that, without conflict, the embodiments of the present invention and features in different embodiments may be combined with each other.
Fig. 1 shows a structure in which a friction plate wear detection device is fitted to a brake caliper, fig. 2 shows a state in which a pair of friction plates are uniformly worn up to a limit value, and fig. 3 shows a state in which a both-side wear difference value reaches the limit value; referring to fig. 1 to 3, a friction plate wear detection device according to an embodiment of the present invention includes:
the plurality of detectors 22 are distributed at intervals on the circumferential periphery of the pair of friction plates 11 of the brake caliper 10, each detector 22 comprises a connecting piece 221 and a probe 222, two ends of the connecting piece 221 are respectively connected with the back plates 110 of the pair of friction plates 11, and the probes 222 are connected with the body of the connecting piece 221;
the plurality of alarms 24 are arranged corresponding to the plurality of detectors 22, and the probes 222 extend into the alarms 24 in a suspending manner from the opening ends of the alarms 24;
wherein, along with the movement of any end of the connecting piece 221, the body of the connecting piece 221 drives the probe 222 to move, and the probe 222 contacts the inner wall of the alarm 24, so that the alarm 24 alarms.
The friction plate wear detection device of the embodiment realizes multipoint detection of the friction plates 11 through a plurality of detectors 22 and a plurality of alarms 24 which are distributed on the circumferential periphery of a pair of friction plates 11 of the brake caliper 10 at intervals, so as to discover the wear condition of the friction plates 11 in time; the detector 22 comprises a connecting piece 221 of the back plate 110, two ends of which are respectively connected with a pair of friction plates 11, and a probe 222 connected with the body of the connecting piece 221, wherein any end of the connecting piece 221 can drive the probe 222 to move so as to transfer the position change of any friction plate 11 through the movement of the probe 222; the probe 222 is suspended and extends into the alarm 24, when the probe 222 contacts the inner wall of the alarm 24, the alarm 24 alarms and notifies the abrasion condition of the friction plates 11 when the abrasion of the corresponding friction plates 11 reaches a set limit value (the abrasion of one side of any friction plate 11 can reach the limit value, the abrasion of the two side friction plates 11 can reach the limit value, and the abrasion difference of the two side friction plates 11 can reach the limit value);
therefore, the friction plate wear detection device of the present embodiment can simply and effectively detect the wear conditions such as overwear and eccentric wear of the friction plate 11 by the cooperation of the detector 22 and the alarm 24.
In some embodiments, probe 222 and the inner wall of alarm 24 are made of conductive material, and probe 222 is electrically connected to the inner wall of alarm 24 by wire 25.
The probe 222 and the inner wall of the alarm 24 may be formed of a metallic material, or may be formed of other suitable conductive materials. Through the conductive design of the probe 222 and the inner wall of the alarm 24, when the probe 222 contacts the inner wall of the alarm 24, the probe 222 and the alarm 24 form a conductive path to trigger the alarm 24 to alarm, and further, the abrasion conditions such as overgrinding, eccentric wear and the like of the friction plate 11 are simply, conveniently and effectively detected.
The alarm 24 alarms, which can be to transmit an electric signal to the whole vehicle controller so that the whole vehicle controller can adjust the braking strategy according to the abrasion condition of the friction plate 11; the alarm 24 can also send out alarm information such as sound and light to prompt the driver to check the replacement friction plate 11 in time.
In some embodiments, a contact type detecting device such as a pressure sensor may be disposed on the inner wall of the alarm 24, so that when the probe 222 contacts the inner wall of the alarm 24, the detecting device detects a relevant signal, thereby triggering the alarm 24 to alarm.
In some embodiments, the open end of the alarm 24 is provided with an insulating sealing ring 26, and the probe 222 passes through and is movably supported by the insulating sealing ring 26.
By means of the insulating sealing ring 26, insulation is achieved on the one hand, and on the other hand, the probe 222 is supported, ensuring that the probe 222 does not contact the inner wall of the alarm 24 without the friction plate 11 being worn and without the wear reaching a limit value. The insulating seal 26 is preferably made of a rubber material to provide a certain deformability allowing the probe 222 to swing and squeeze the insulating seal 26 until the probe 222 contacts the sidewall of the alarm 24 in a single side biased (two side asymmetric wear) condition of the friction plate 11 as shown in fig. 3.
In some embodiments, the outer wall of the alarm 24 is provided with an insulating housing 240.
The alarm 24 is mounted to the brake caliper 10 body by an insulated housing 240. By insulating the housing 240, the alarm 24 is prevented from interfering with other devices.
In some embodiments, the connecting piece 221 is a torsion spring, two ends of the torsion spring are respectively connected with the back plate 110 of the pair of friction plates 11, and the probe 222 is connected with the body of the torsion spring; wherein the torsion spring is compressed in case the friction plate 11 is pushed towards the brake disc 12 and the friction plate 11 wears.
By utilizing the structure of the torsion spring, the two ends of the torsion spring are respectively connected with the back plate 110 and the body connected probe 222 of the pair of friction plates 11, under the condition that the friction plates 11 are worn, the torsion spring is compressed to deform to drive the probe 222 to move, and the position of the friction plates 11 is transferred to change due to wear, so that the detection of the wear conditions of overgrinding, eccentric wear and the like of the friction plates 11 is realized through the extremely simple structure of the torsion spring compression and the probe 222 movement.
Reference is made in particular to figures 2 and 3. In the case where the pair of friction plates 11 is uniformly worn up to the limit value, both ends 221a and 221b of the torsion spring are uniformly compressed to press the body of the torsion spring, causing the body of the torsion spring to move down, thereby driving the probe 222 to move down to contact the bottom wall of the alarm 24, triggering the alarm to alarm. In the case that the difference in wear between the friction plates 11 on both sides (the wear on the right side is greater than the wear on the left side of the pair of friction plates 11 shown in fig. 3) reaches a limit value, the right end 221b of the torsion spring is compressed, so that the connection point between the probe 222 and the torsion spring is pressed and moved to the left, and in this embodiment, the probe 222 can swing around the connection point between the probe 222 and the torsion spring, thereby driving the probe 222 to swing to the right until contacting the right wall of the alarm 24, and triggering the alarm to alarm.
In addition, the returning of the friction plate 11 plays an important role in reducing the drag force of the brake caliper 10, improving the life of the friction plate 11 and the brake disc 12, and also contributes to improving the fuel economy of the vehicle. As shown in fig. 1, the friction plate 11 is pushed toward the brake disc 12 by the piston 13 during braking by the elasticity of the torsion spring, and both ends of the torsion spring are symmetrically compressed at this time; when the braking is released, the pair of friction plates 11 return under the action of the elasticity of the torsion springs and are separated from the brake disc 12, so that braking drag is reduced.
Therefore, the torsion spring is adopted, the return and abrasion detection functions of the friction plate 11 can be integrated, and the structural design of the brake caliper assembly is simplified.
In other embodiments, the connecting member 221 may be formed as other components, so long as it can be changed along with the position of any friction plate 11, so as to drive the probe 222 to move, and preferably has a deformation recovery capability, so as to integrate the return and wear detection functions of the friction plate 11.
In some embodiments, the probe 222 is snap-riveted to the body of the torsion spring.
Through movable riveting, the probe 222 can swing around the riveting point, and when the friction plate 11 is subjected to single-side eccentric wear (asymmetric wear), the torsion spring drives the probe 222 to swing so as to realize the detection of the eccentric wear of the friction plate 11. Of course, when the pair of friction plates 11 are uniformly worn, the torsion spring drives the probe 222 to contact the bottom wall of the alarm, so that wear detection is realized.
In some embodiments, the probe 222 is integrally formed with the body of the torsion spring.
Through integrated into one piece, simplify the structural design of detector 22, and when friction disc 11 takes place unilateral eccentric wear (asymmetric wearing and tearing)/even wearing and tearing, torsional spring drive probe 222 contact alarm's lateral wall/diapire, realize the detection to the wearing and tearing condition such as friction disc 11 overgrind, eccentric wear.
In some embodiments, the distance between the probe 222 and the bottom wall of the alarm 24 in the initial state is determined based on the symmetric wear limits of the pair of friction plates 11.
As shown in connection with fig. 1 and 2, the distance between the probe 222 and the bottom wall of the alarm 24 in the initial state is determined based on the symmetrical wear limit value of the pair of friction plates 11 (i.e., the maximum allowable wear value in the case where the pair of friction plates 11 are uniformly worn), so that when the pair of friction plates 11 are uniformly worn up to the limit value, the probe 222 contacts the bottom wall of the alarm 24 with the change in position of the pair of friction plates 11 due to wear, and the alarm 24 is triggered to alarm.
In some embodiments, the distance between the probe 222 and the sidewall of the alarm 24 in the initial state is determined based on the one-sided wear limit and/or the two-sided wear difference limit of the pair of friction plates 11.
The brake caliper 10 is in operation, and for a variety of reasons, may result in a single-sided friction plate 11 being biased; the distance between the probe 222 and the sidewall of the alarm 24 in the initial state is determined according to the limit value of the single-side abrasion of the pair of friction plates 11 (i.e., the maximum abrasion value allowed in the case of abrasion of the single-side friction plates 11), so that when the abrasion of the single-side friction plates 11 reaches the limit value, the probe 222 contacts the sidewall of the alarm 24 along with the position change of the corresponding friction plates 11 caused by abrasion, and the alarm 24 is triggered to alarm. In this embodiment, the limit value of the one-sided wear is preferably 1mm to 5mm, more preferably 2mm to 3mm.
In addition, in addition to the above-described manner of determining whether replacement of the friction plates 11 is necessary by detecting whether the single-side friction plates 11 are worn to the limit state, as shown in fig. 3, in some embodiments, whether replacement of the friction plates 11 is necessary may be determined by detecting whether the wear difference of the two-side friction plates 11 is to the limit state (i.e., detecting an asymmetric wear state) (i.e., the distance between the probe 222 and the side wall of the alarm 24 in the initial state, determined according to the limit value of the two-side wear difference of the pair of friction plates 11); thus, irreversible damage to the brake disc 12 and the brake caliper 10 by one-sided eccentric wear (asymmetric wear) can be avoided, significant waste of vehicle energy consumption due to asymmetric wear is reduced, and maintenance costs of the vehicle can be saved because only the one-sided friction plate 11 can be replaced. In this embodiment, the limit value of the both-side wear difference is preferably 1mm to 5mm, more preferably 2mm to 3mm. For example, if the limit value of the wear difference between both sides is 2mm, the thickness of the pair of friction plates 11 in the initial state is 10mm, and when the friction plate 11 on one side is worn to 9mm and the friction plate 11 on the other side is worn to 5mm, the alarm 24 is triggered because 9mm-5 mm=4 mm >2 mm.
Additionally, in other embodiments, the distance between the probe 222 and the sidewall of the alarm 24 may be determined in combination with comparing both the single-sided wear limit value and the double-sided wear difference limit value of the pair of friction plates 11 (e.g., first reaching one of them to trigger a first alarm (e.g., illuminate yellow light) of the alarm 24, and both reaching the other to trigger a second alarm (e.g., illuminate red light) of the alarm 24); therefore, the method has the advantages of the single-side wear limit value and two-side wear difference value alarm mechanism.
Embodiments of the present invention also provide a brake caliper assembly configured with the friction plate wear detection device described in any of the embodiments above.
The brake caliper assembly is provided with the friction plate abrasion detection device, and the friction plates 11 can be detected at multiple points through the plurality of detectors 22 and the plurality of alarms 24 which are distributed on the circumferential periphery of the pair of friction plates 11 of the brake caliper 10 at intervals, so that the abrasion condition of the friction plates 11 can be found in time; the detector 22 comprises a connecting piece 221 of the back plate 110, two ends of which are respectively connected with a pair of friction plates 11, and a probe 222 connected with the body of the connecting piece 221, wherein any end of the connecting piece 221 can drive the probe 222 to move so as to transfer the position change of any friction plate 11 caused by abrasion through the movement of the probe 222; the probe 222 is suspended and extends into the alarm 24, when the probe 222 contacts the inner wall of the alarm 24, the alarm 24 alarms and notifies the abrasion condition of the friction plates 11 when the abrasion of the corresponding friction plates 11 reaches a set limit value (the abrasion condition of one friction plate 11 can be uniformly abraded to the limit value, the abrasion condition of one side of any friction plate 11 can be uniformly abraded, or the abrasion difference value of two sides of the friction plate 11 can be also used to the limit value);
accordingly, by the cooperation of the detector 22 and the alarm 24, the abrasion condition such as overwear and uneven wear of the friction plate 11 can be easily and effectively detected.
In addition, when the torsion spring is adopted as the connecting piece 221, the friction plate 11 can be driven to return when the braking is released through the elastic action of the torsion spring, so that the return and abrasion detection functions of the friction plate 11 are integrated, and the structural design of the brake caliper assembly is simplified.
The foregoing is a further detailed description of the invention in connection with the preferred embodiments, and it is not intended that the invention be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the invention, and these should be considered to be within the scope of the invention.
Claims (10)
1. A friction plate wear detection device, comprising:
the detectors are distributed at the periphery of the pair of friction plates of the brake caliper at intervals, each detector comprises a connecting piece and a probe, two ends of the connecting piece are respectively connected with the back plates of the pair of friction plates, and the probes are connected with the body of the connecting piece;
the probes are suspended from the opening ends of the alarms and extend into the alarms;
the body of the connecting piece drives the probe to move along with the movement of any end of the connecting piece, the probe contacts the inner wall of the alarm, and the alarm alarms.
2. The friction plate wear detection device of claim 1, wherein the probe and the inner wall of the alarm are made of conductive materials, and the probe is electrically connected to the inner wall of the alarm by a wire.
3. The friction plate wear detection device according to claim 2, wherein the open end of the alarm is provided with an insulating seal ring, and the probe is passed through and movably supported by the insulating seal ring.
4. The friction plate wear detection device according to claim 2, wherein an outer wall of the alarm is provided with an insulating housing.
5. The friction plate wear detection device according to claim 1, wherein the connecting piece is a torsion spring, two ends of the torsion spring are respectively connected with the back plates of the pair of friction plates, and the probe is connected with the body of the torsion spring;
wherein the torsion spring is compressed in the event that the friction plate is urged toward the brake disc and the friction plate wears.
6. The friction plate wear detection device of claim 5 wherein the probe is movably riveted to the body of the torsion spring.
7. The friction plate wear detection device of claim 5 wherein the probe is integrally formed with the body of the torsion spring.
8. A friction plate wear detection apparatus as claimed in any one of claims 1 to 7 wherein in an initial state, the distance between said probe and the bottom wall of said alarm is determined based on the symmetric wear limits of said pair of friction plates.
9. A friction plate wear detection apparatus as claimed in any one of claims 1 to 7 wherein in an initial state the distance between the probe and the side wall of the alarm is determined based on the one-sided wear limit value and/or the two-sided wear difference limit value of the pair of friction plates.
10. Brake caliper assembly, characterized in that it is provided with a friction plate wear detection device according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311063116.5A CN116906479A (en) | 2023-08-21 | 2023-08-21 | Friction plate abrasion detection device and brake caliper assembly |
Applications Claiming Priority (1)
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| CN202311063116.5A CN116906479A (en) | 2023-08-21 | 2023-08-21 | Friction plate abrasion detection device and brake caliper assembly |
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| US4183012A (en) * | 1977-08-02 | 1980-01-08 | Sumitomo Electric Industries, Ltd. | Abrasion alarm device for disk brake |
| JPS59159439A (en) * | 1983-02-28 | 1984-09-10 | Nissin Kogyo Kk | Brake lining wear warning device |
| US4742326A (en) * | 1985-06-25 | 1988-05-03 | General Motors Corporation | Disc brake assembly having an electrical lining wear indicator |
| WO1996025609A1 (en) * | 1995-02-17 | 1996-08-22 | Itt Automotive Europe Gmbh | Hold-down spring for disk brakes |
| JP2000220676A (en) * | 1999-02-01 | 2000-08-08 | Nisshinbo Ind Inc | Friction material wear alarm |
| JP2002221245A (en) * | 2001-01-26 | 2002-08-09 | Nisshinbo Ind Inc | Brake pad wear alarm |
| KR200389985Y1 (en) * | 2005-04-11 | 2005-07-14 | 조선남 | Disk brake for Car |
| JP2010025351A (en) * | 2009-11-06 | 2010-02-04 | Nisshinbo Holdings Inc | Drum brake device having automatic shoe clearance adjuster |
| CN103906941A (en) * | 2011-08-26 | 2014-07-02 | 福乐尼·乐姆宝公开有限公司 | Assembly for detecting wear of brake pads of disc brakes |
| CN106460975A (en) * | 2014-04-08 | 2017-02-22 | 福乐尼·乐姆宝公开有限公司 | Disc brake pad, spring for disc brake caliper and disk brake caliper assembly |
| CN213008082U (en) * | 2020-06-22 | 2021-04-20 | 佛山市永力泰车轴有限公司 | Axle system with friction plate wear alarm device |
| CN113195923A (en) * | 2018-12-20 | 2021-07-30 | 乐姆宝公开有限公司 | Pad-spring assembly for brake caliper |
| CN214998992U (en) * | 2021-04-30 | 2021-12-03 | 安思通（厦门）制动科技有限公司 | Brake caliper with electronic brake pad alarm structure |
| KR20220022798A (en) * | 2020-08-19 | 2022-02-28 | 주식회사 만도 | Disc brake pad wear detection device |
| CN218294278U (en) * | 2022-06-08 | 2023-01-13 | 浙江亚太机电股份有限公司 | Mechanical alarm piece structure of brake block in fixed brake caliper assembly |
-
2023
- 2023-08-21 CN CN202311063116.5A patent/CN116906479A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4183012A (en) * | 1977-08-02 | 1980-01-08 | Sumitomo Electric Industries, Ltd. | Abrasion alarm device for disk brake |
| JPS59159439A (en) * | 1983-02-28 | 1984-09-10 | Nissin Kogyo Kk | Brake lining wear warning device |
| US4742326A (en) * | 1985-06-25 | 1988-05-03 | General Motors Corporation | Disc brake assembly having an electrical lining wear indicator |
| WO1996025609A1 (en) * | 1995-02-17 | 1996-08-22 | Itt Automotive Europe Gmbh | Hold-down spring for disk brakes |
| JP2000220676A (en) * | 1999-02-01 | 2000-08-08 | Nisshinbo Ind Inc | Friction material wear alarm |
| JP2002221245A (en) * | 2001-01-26 | 2002-08-09 | Nisshinbo Ind Inc | Brake pad wear alarm |
| KR200389985Y1 (en) * | 2005-04-11 | 2005-07-14 | 조선남 | Disk brake for Car |
| JP2010025351A (en) * | 2009-11-06 | 2010-02-04 | Nisshinbo Holdings Inc | Drum brake device having automatic shoe clearance adjuster |
| CN103906941A (en) * | 2011-08-26 | 2014-07-02 | 福乐尼·乐姆宝公开有限公司 | Assembly for detecting wear of brake pads of disc brakes |
| CN106460975A (en) * | 2014-04-08 | 2017-02-22 | 福乐尼·乐姆宝公开有限公司 | Disc brake pad, spring for disc brake caliper and disk brake caliper assembly |
| CN113195923A (en) * | 2018-12-20 | 2021-07-30 | 乐姆宝公开有限公司 | Pad-spring assembly for brake caliper |
| CN213008082U (en) * | 2020-06-22 | 2021-04-20 | 佛山市永力泰车轴有限公司 | Axle system with friction plate wear alarm device |
| KR20220022798A (en) * | 2020-08-19 | 2022-02-28 | 주식회사 만도 | Disc brake pad wear detection device |
| CN214998992U (en) * | 2021-04-30 | 2021-12-03 | 安思通（厦门）制动科技有限公司 | Brake caliper with electronic brake pad alarm structure |
| CN218294278U (en) * | 2022-06-08 | 2023-01-13 | 浙江亚太机电股份有限公司 | Mechanical alarm piece structure of brake block in fixed brake caliper assembly |
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