CN116877601A - Brake device - Google Patents

Brake device Download PDF

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Publication number
CN116877601A
CN116877601A CN202310719484.4A CN202310719484A CN116877601A CN 116877601 A CN116877601 A CN 116877601A CN 202310719484 A CN202310719484 A CN 202310719484A CN 116877601 A CN116877601 A CN 116877601A
Authority
CN
China
Prior art keywords
friction plate
guide pin
flange
mounting groove
motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310719484.4A
Other languages
Chinese (zh)
Inventor
陈艳业
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Huashen Ruili Automobile Technology Co ltd
Original Assignee
Shanghai Huashen Ruili Automobile Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Huashen Ruili Automobile Technology Co ltd filed Critical Shanghai Huashen Ruili Automobile Technology Co ltd
Priority to CN202310719484.4A priority Critical patent/CN116877601A/en
Publication of CN116877601A publication Critical patent/CN116877601A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
    • F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
    • F16D55/224—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members
    • F16D55/225—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads
    • F16D55/226—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads in which the common actuating member is moved axially, e.g. floating caliper disc brakes
    • F16D55/2265—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads in which the common actuating member is moved axially, e.g. floating caliper disc brakes the axial movement being guided by one or more pins engaging bores in the brake support or the brake housing
    • 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
    • F16D65/095—Pivots or supporting members therefor
    • 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
    • F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
    • F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
    • 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
    • F16D2121/00—Type of actuator operation force
    • F16D2121/14—Mechanical
    • 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
    • F16D2121/00—Type of actuator operation force
    • F16D2121/18—Electric or magnetic
    • F16D2121/24—Electric or magnetic using motors
    • 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
    • F16D2123/00—Multiple operation forces
    • 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
    • F16D2125/00—Components of actuators
    • F16D2125/18—Mechanical mechanisms
    • F16D2125/20—Mechanical mechanisms converting rotation to linear movement or vice versa
    • F16D2125/34—Mechanical mechanisms converting rotation to linear movement or vice versa acting in the direction of the axis of rotation
    • F16D2125/40—Screw-and-nut

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

The invention relates to a brake, comprising: a bracket; the first motor, the first transmission device and the first friction plate; the first friction plate is slidably arranged on the bracket; the first motor drives the first friction plate to slide through a first transmission device; the second motor, the second transmission device and the second friction plate; the second friction plate is slidably arranged on the bracket; the second motor drives the second friction plate to slide through a second transmission device; the first motor and the second motor are the same or different; the first transmission device is the same as or different from the second transmission device; the first friction plate and the second friction plate are the same or different. The brake of the invention is provided with two sets of motors, transmission devices and friction plates, one set of motors, transmission devices and friction plates can be used as a main braking device, and the other set of motors can be used as a parking and standby braking device. When the main braking device cannot work normally, the standby braking device can brake temporarily, so that the safety risk that only one set of braking device fails and cannot brake can be avoided, and the safety is high. The two sets of motors, the transmission device and the friction plate share the same bracket, so that the structure is compact, and the occupied space is small.

Description

Brake device
Technical Field
The present invention relates to a brake.
Background
Electromechanical brakes (EMB) are purely electronically controlled brakes. In the actual use process, the purely electronic control brake increases the risk of failure, for example, the risk of the brake not working due to power failure, communication failure and the like is greater than that of the purely mechanical brake. When a circuit fault or motor failure occurs, the brake cannot work normally, and the automobile losing the braking function has a huge safety risk. Therefore, how to increase the safety guarantee of the brake and avoid the safety risk of the brake caused by motor faults or circuit faults is one of the important technical problems to be solved by the technicians in the field.
Disclosure of Invention
One of the purposes of the invention is to overcome the defects in the prior art and provide a brake with more safety guarantee in the use process.
In order to achieve the above purpose, the present invention is realized by the following technical scheme:
a brake, comprising:
a bracket;
the first motor, the first transmission device and the first friction plate; the first friction plate is slidably arranged on the bracket; the first motor drives the first friction plate to slide through a first transmission device;
the second motor, the second transmission device and the second friction plate; the second friction plate is slidably arranged on the bracket; the second motor drives the second friction plate to slide through a second transmission device;
the first motor and the second motor are the same or different; the first transmission device is the same as or different from the second transmission device; the first friction plate and the second friction plate are the same or different.
According to one embodiment of the invention, the bracket is provided with a first accommodating groove and a second accommodating groove; the first friction plate is installed in the first accommodating groove, and the second friction plate is installed in the second accommodating groove.
According to one embodiment of the invention, the bracket comprises a base extending in a transverse direction and a first flange, a second flange and a third flange extending in a vertical direction; the first flange and the second flange are positioned at two ends of the base body and vertically protrude out of the base body; the third flange is positioned between the first flange and the second flange and protrudes out of the base body along the vertical direction; the two ends of the first friction plate are respectively connected with the first flange and the third flange, and the two ends of the second friction plate are respectively connected with the second flange and the third flange.
According to one embodiment of the invention, the first flange is provided with a first mounting groove and the second flange is provided with a second mounting groove; the third flange is provided with a third mounting groove and a fourth mounting groove; the two ends of the first friction plate are respectively arranged in the first mounting groove and the third mounting groove; the two ends of the second friction plate are respectively arranged in the second mounting groove and the fourth mounting groove;
the first mounting groove and the third mounting groove are symmetrically arranged, and the second mounting groove and the fourth mounting groove are asymmetrically arranged; or the first mounting groove and the third mounting groove are asymmetrically arranged, and the second mounting groove and the fourth mounting groove are symmetrically arranged.
According to one embodiment of the invention, the first friction plate is provided with a pair of first lugs, which are symmetrically arranged; the second friction plate is provided with a pair of second lugs which are asymmetrically arranged.
According to one embodiment of the invention, the first flange is provided with a first guide pin; a second guide pin is arranged on the second flange; a third guide pin and a fourth guide pin are arranged on the third flange; the brake further comprises a first shell and a second shell, wherein the first shell is connected with the first guide pin and the third guide pin; the second shell is connected with the second guide pin and the fourth guide pin, and the first guide pin, the second guide pin, the third guide pin and the fourth guide pin are arranged in a relatively sliding manner with the bracket.
According to one embodiment of the invention, the first flange is provided with a first guide pin; a second guide pin is arranged on the second flange; a fifth guide pin is arranged on the third flange; the brake further comprises a first shell and a second shell, wherein the first shell is connected with the first guide pin and the fifth guide pin; the second shell is connected with the second guide pin and the fifth guide pin, and the first guide pin and the second guide pin are arranged in a relatively sliding manner with the bracket; the fifth guide pin and the bracket are relatively and fixedly arranged, and the first shell and the second shell can be slidably arranged along the fifth guide pin.
According to one embodiment of the invention, the first motor power is greater than the second motor power; the first friction plate size is greater than the second friction plate size.
According to one embodiment of the invention, the first transmission comprises a ball screw and the second transmission comprises a screw nut, which consists of a screw and a nut.
The brake of the invention is provided with two sets of motors, transmission devices and friction plates, one set of motors, transmission devices and friction plates can be used as a main braking device, and the other set of motors can be used as a parking and standby braking device. When the main braking device cannot work normally, the standby braking device can brake temporarily, so that the safety risk that only one set of braking device fails and cannot brake can be avoided, and the safety is high. The two sets of motors, the transmission device and the friction plate share the same bracket, so that the structure is compact, and the occupied space is small. The first mounting groove and the third mounting groove are asymmetrically arranged or the second mounting groove and the fourth mounting groove are asymmetrically arranged, and the positions of the two mounting grooves on the third flange can be staggered, so that the third flange is prevented from being oversized due to the arrangement of the two mounting grooves. The first motor shell and the second motor shell can be sleeved on the fifth guide pin by arranging the fifth guide pin, and the fifth guide pin is fixedly arranged, so that the structure of the motor is further simplified and the motor is convenient to use.
Drawings
Fig. 1 is a schematic view of a brake in embodiment 1 of the present invention.
Fig. 2 is an exploded view of a brake structure in embodiment 1 of the present invention.
Fig. 3 is a schematic structural diagram of a bracket, a first friction plate and a second friction plate in embodiment 1 of the present invention.
Fig. 4 is a schematic diagram of a stent structure in embodiment 1 of the present invention.
Fig. 5 is a front view of the stent in embodiment 1 of the present invention.
Fig. 6 is a schematic view of the structure of the first friction plate in embodiment 1 of the present invention.
Fig. 7 is a schematic view of the structure of a second friction plate in embodiment 1 of the present invention.
Fig. 8 is a schematic view of a partial structure in embodiment 2 of the present invention.
Fig. 9 is a schematic diagram of a stent structure in embodiment 2 of the present invention.
Fig. 10 is a schematic view of the brake in the present invention.
Detailed Description
Example 1
As shown in fig. 1 and 2, the brake 100 includes a bracket 110, a first motor 120, a first transmission 130, a first friction plate 140, a second motor 150, a second transmission 160, and a second friction plate 170. The first motor 120, the first transmission 130, the first friction plate 140, the second motor 150, the second transmission 160, and the second friction plate 170 are all connected to the bracket 110. The first friction plate 140 is slidably disposed on the bracket 110. The first motor 120 drives the first friction plate 140 to slide through the first transmission 130. The second friction plate 170 is slidably disposed on the bracket 110; the second motor 150 drives the second friction plate 170 to slide through a second transmission 160.
As shown in fig. 3 to 5, the bracket 110 includes a base 111 extending in a lateral direction, a first flange 112, a second flange 113, and a third flange 114 extending in a vertical direction. The first flange 112 and the second flange 113 are positioned at two ends of the base 111 and vertically protrude from the base 111; the third flange 114 is located between the first flange 112 and the second flange 113, and protrudes from the base 111 in a vertical direction. The bracket 110 is generally "mountain" shaped. The first flange 112 and the third flange 114 enclose a first accommodating groove 115. The second flange 113 and the third flange 114 enclose a second accommodating groove 116. The first flange 112 is provided with two first mounting grooves 1121. The two first installation grooves 1121 are spaced apart. The second flange 113 is provided with two second mounting grooves 1131. The two second mounting grooves 1131 are spaced apart. Two third mounting grooves 1141 and two fourth mounting grooves 1142 are provided on the third flange 114, respectively. The two third mounting grooves 1141 are disposed at intervals. The two fourth mounting slots 1142 are spaced apart. The first mounting groove 1121 is symmetrically disposed with the third mounting groove 1141. The second mounting groove 1131 is asymmetrically disposed with respect to the fourth mounting groove 1142. The first flange 112 is provided with a first pin hole 1122. The second flange 113 is provided with a second pin hole 1132. Third flange 114 is provided with third pin hole 1133 and fourth pin hole 1134. The first pin hole 1122, the second pin hole 1132, the third pin hole 1133, and the fourth pin hole 1134 may be blind holes or through holes. In the present embodiment, the first, second, third and fourth pin bores 1122, 1132, 1133, 1134 are blind bores. A first guide pin 1151 is mounted in the first pin hole 1122. The first guide pin 1151 extends beyond the first pin bore 1122 at an end thereof and is slidable along the first pin bore 1122. A second guide pin 1152 is disposed within the second pin bore 1132. The second guide pin 1152 extends beyond the second pin hole 1132 at an end thereof and is slidable along the second pin hole 1132. A third guide pin 1153 is disposed within the third pin bore 1133. The third guide pin 1153 extends beyond the third pin hole 1133 at an end thereof and is slidable along the third pin hole 1133. A fourth guide pin 1154 is disposed within the fourth pin bore 1134. The fourth guide pin 1154 extends beyond the fourth pin bore 1134 at an end thereof and is slidable along the fourth pin bore 1134.
As shown in fig. 6, the first friction plate 140 includes a first inner friction plate 141 and a first outer friction plate 142. The first inner friction plate 141 includes a first friction plate body 143 and a pair of first lugs 144. The pair of first lugs 144 are respectively disposed at both ends of the first friction plate body 143 and protrude from the first friction plate body 143. A pair of first lugs 144 are symmetrically disposed at both ends of the first friction plate body 143. The first outer friction plate 142 has the same structure as the first inner friction plate 141. The first friction plate 140 is installed in the first receiving groove 115. A pair of first lugs 144 of the first inner friction plate 141 are respectively located in the first and third mounting grooves 1121 and 1141 and are connected to the first and third flanges 112 and 114 by spring members (not shown). The spring member may be constructed using prior art spring members and will not be described in detail herein. A pair of first lugs 144 are slidable along the first mounting slot 1121 and the third mounting slot 1141. A pair of first lugs of the first outer friction plate 142 are slidably mounted in the other first mounting groove 1121 and the other third mounting groove 1141, respectively.
As shown in fig. 7, the second friction plate 170 includes a second inner friction plate 171 and a second outer friction plate 172. The second inner friction plate 171 includes a second friction plate body 173 and a pair of second lugs 174. A pair of second lugs 174 are respectively disposed at both ends of the second friction plate body 173 and protrude from the second friction plate body 173. A pair of second lugs 174 are asymmetrically disposed at both ends of the second friction plate body 173. The second outer friction plate 172 has the same structure as the second inner friction plate 171. The second friction plate 170 is installed in the second receiving groove 116. The pair of second lugs 174 of the second inner friction plate 171 are respectively located in the second mounting groove 1131 and the fourth mounting groove 1142 and are connected to the second flange 113 and the third flange 114 by spring members. The spring member may be constructed using prior art spring members and will not be described in detail herein. A pair of second lugs 174 are slidable along second mounting slots 1131 and fourth mounting slots 1142. A pair of second lugs of the second outer friction plate 172 are slidably received in the other second mounting groove 1131 and the other fourth mounting groove 1142, respectively. The first friction plate body 143 and the second friction plate body 173 may have the same size or different sizes. In the present embodiment, the first friction plate body 143 is larger in size than the second friction plate body 173.
As shown in fig. 1 and 2, the brake 100 of the present invention further includes a first housing 181 and a second housing 182. Two first hangers 183 are provided on the first housing 181. The two first suspension loops 183 are fixedly connected to the first guide pin 1151 and the third guide pin 1153, respectively. The second housing 182 is provided with two second lugs 184. The two second hangers 184 are fixedly connected with the second guide pin 1152 and the fourth guide pin 1154, respectively. The first housing 181 and the second housing 182 are both slidably connected to the bracket 110. The first housing 181 is mounted with a first gear case 131 and a ball screw 132. A first gear mechanism and a first printed wiring board (not shown) are provided in the first gear case 131. The first gear mechanism is in driving connection with the ball screw 132. The first gear case 131 also has the first motor 120 mounted thereon. The first motor 120 is in driving connection with the first gear mechanism. The first motor 120 is controlled to operate by a control device on the first printed circuit board, and the first motor 120 drives the ball screw 132 to operate through a first gear mechanism. The second housing 182 further has a lead screw nut 161 and a second gear case 162 mounted thereon. A second gear mechanism and a second printed wiring board are disposed in the second gear case 162. The screw nut 161 is composed of a screw 163 and a nut 164. The second motor 150 is mounted on the second gear box 162. The second gear mechanism is in driving connection with a lead screw nut 161. The second motor 150 is in driving connection with the second gear mechanism. The second motor 150 is controlled to operate by a control device on the second printed wiring board. The second motor 150 drives the lead screw nut 161 to operate through a second gear mechanism. The first motor and the second motor may be the same or different. In this embodiment, the first motor 120 is powered more than the second motor 150.
The first transmission 130 and the second transmission 160 may be the same or different. In this embodiment, the two are different. The first transmission 130 includes a first gear mechanism and a ball screw 132. The second transmission 160 includes a second gear mechanism and a screw nut 161. The ball screw 132 can transmit relatively large torque, and the screw nut 161 is used only to transmit small torque. The first gear mechanism and the second gear mechanism may use structures commonly used in the prior art, and will not be described herein.
Example 2
The difference between the present embodiment and embodiment 1 is mainly that the bracket structure is different, and the connection manner of the bracket and the first and second housings 181, 182 is different.
As shown in fig. 1 and 2, the brake 100 includes a bracket 110, a first motor 120, a first transmission 130, a first friction plate 140, a second motor 150, a second transmission 160, and a second friction plate 170. The first motor 120, the first transmission 130, the first friction plate 140, the second motor 150, the second transmission 160, and the second friction plate 170 are all connected to the bracket 110. The first friction plate 140 is slidably disposed on the bracket 110; the first motor 120 drives the first friction plate 140 to slide through the first transmission 130. The second friction plate 170 is slidably disposed on the bracket 110; the second motor 150 drives the second friction plate 170 to slide through a second transmission 160.
As shown in fig. 8 and 9, the bracket 110 includes a base 111 extending in a lateral direction, a first flange 112, a second flange 113, and a third flange 114 extending in a vertical direction. The first flange 112 and the second flange 113 are positioned at two ends of the base 111 and vertically protrude from the base 111; the third flange 114 is located between the first flange 112 and the second flange 113, and protrudes from the base 111 in a vertical direction. The bracket 110 is generally "mountain" shaped. The first flange 112 and the third flange 114 enclose a first accommodating groove 115. The second flange 113 and the third flange 114 enclose a second accommodating groove 116. The first flange 112 is provided with two first mounting grooves 1121. The two first installation grooves 1121 are spaced apart. The second flange 113 is provided with two second mounting grooves 1131. The two second mounting grooves 1131 are spaced apart. Two third mounting grooves 1141 and two fourth mounting grooves 1142 are provided on the third flange 114, respectively. The two third mounting grooves 1141 are disposed at intervals. The two fourth mounting slots 1142 are spaced apart. The first mounting groove 1121 is symmetrically disposed with the third mounting groove 1141. The second mounting groove 1131 is asymmetrically disposed with respect to the fourth mounting groove 1142. The first flange 112 is provided with a first pin hole 1122. The second flange 113 is provided with a second pin hole 1132. The third flange 114 is provided with a fifth pin hole 1135. The first, second and fifth pin holes 1122, 1132, 1135 may be blind holes or through holes. In the present embodiment, the first pin holes 1122, 1132 are through holes, and the fifth pin holes 1135 are blind holes. A first guide pin 1151 is mounted in the first pin hole 1122. The first guide pin 1151 extends beyond the first pin bore 1122 at an end thereof and is slidable along the first pin bore 1122. A second guide pin 1152 is disposed within the second pin bore 1132. The second guide pin 1152 extends beyond the second pin hole 1132 at an end thereof and is slidable along the second pin hole 1132. A fifth guide pin 145 is provided in the fifth pin hole 1135. The end of the fifth guide pin 145 protrudes out of the fifth pin hole 1135 and is fixedly coupled with the bracket 110.
As shown in fig. 6, the first friction plate 140 includes a first inner friction plate 141 and a first outer friction plate 142. The first inner friction plate 141 includes a first friction plate body 143 and a pair of first lugs 144. The pair of first lugs 144 are respectively disposed at both ends of the first friction plate body 143 and protrude from the first friction plate body 143. A pair of first lugs 144 are symmetrically disposed at both ends of the first friction plate body 143. The first outer friction plate 142 has the same structure as the first inner friction plate 141. The first friction plate 140 is installed in the first receiving groove 115. A pair of first lugs 144 of the first inner friction plate 141 are respectively located in the first and third mounting grooves 1121 and 1141 and are connected to the first and third flanges 112 and 114 by spring members (not shown). The spring member may be constructed using prior art spring members and will not be described in detail herein. A pair of first lugs 144 are slidable along the first mounting slot 1121 and the third mounting slot 1141. A pair of first lugs of the first outer friction plate 142 are slidably mounted in the other first mounting groove 1121 and the other third mounting groove 1141, respectively.
As shown in fig. 7, the second friction plate 170 includes a second inner friction plate 171 and a second outer friction plate 172. The second inner friction plate 171 includes a second friction plate body 173 and a pair of second lugs 174. A pair of second lugs 174 are respectively disposed at both ends of the second friction plate body 173 and protrude from the second friction plate body 173. A pair of second lugs 174 are asymmetrically disposed at both ends of the second friction plate body 173. The second outer friction plate 172 has the same structure as the second inner friction plate 171. The second friction plate 170 is installed in the second receiving groove 116. The pair of second lugs 174 of the second inner friction plate 171 are respectively located in the second mounting groove 1131 and the fourth mounting groove 1142 and are connected to the second flange 113 and the third flange 114 by spring members. The spring member may be constructed using prior art spring members and will not be described in detail herein. A pair of second lugs 174 are slidable along second mounting slots 1131 and fourth mounting slots 1142. A pair of second lugs of the second outer friction plate 172 are slidably received in the other second mounting groove 1131 and the other fourth mounting groove 1142, respectively. The first friction plate body 143 and the second friction plate body 173 may have the same size or different sizes. In the present embodiment, the first friction plate body 143 is larger in size than the second friction plate body 173.
As shown in fig. 8 and 9, the brake 100 of the present invention further includes a first housing 181 and a second housing 182. Two first hangers 183 are provided on the first housing 181. One of the first hanging lugs 183 is fixedly connected with the first guide pin 1151, and the other second hanging lug 183 is movably connected with the fifth guide pin 145. Two second hangers 184 are provided on the second housing 182. One of the second lugs 184 is fixedly connected with the second guide pin 1152, and the other second lug 184 is movably connected with the fifth guide pin 145. The first and second housings 181 and 182 are each slidably connected to the fifth guide pin 145, i.e., the bracket 110. The first housing 181 is mounted with a first gear case 131 and a ball screw 132. A first gear mechanism and a first printed wiring board (not shown) are provided in the first gear case 131. The first gear mechanism is in driving connection with the ball screw 132. The first gear case 131 also has the first motor 120 mounted thereon. The first motor 120 is in driving connection with the first gear mechanism. The first motor 120 is controlled to operate by a control device on the first printed circuit board, and the first motor 120 drives the ball screw 132 to operate through a first gear mechanism. The second housing 182 further has a lead screw nut 161 and a second gear case 162 mounted thereon. A second gear mechanism and a second printed wiring board are disposed in the second gear case 162. The screw nut 161 is composed of a screw 163 and a nut 164. The second motor 150 is mounted on the second gear box 162. The second gear mechanism is in driving connection with a lead screw nut 161. The second motor 150 is in driving connection with the second gear mechanism. The second motor 150 is controlled to operate by a control device on the second printed wiring board. The second motor 150 drives the lead screw nut 161 to operate through a second gear mechanism. The first motor and the second motor may be the same or different. In this embodiment, the first motor 120 is powered more than the second motor 150.
The first transmission 130 and the second transmission 160 may be the same or different. In this embodiment, the two are different. The first transmission 130 includes a first gear mechanism and a ball screw 132. The second transmission 160 includes a second gear mechanism and a screw nut 161. The ball screw 132 can transmit relatively large torque, and the screw nut 161 is used only to transmit small torque. The first gear mechanism and the second gear mechanism may use structures commonly used in the prior art, and will not be described herein.
In the present invention, the first motor 120, the first transmission 130, and the first friction plate 140 are used as an EMB (electro mechanical brake system); the second motor 150, the second transmission 160, and the second friction plate 170 may be used as an EPB (electronic parking brake system) and may be used as a spare EMB.
As shown in fig. 10, in use of the present invention, the first motor 120 drives the first friction plate 140 to slide through the first transmission 130, so that the first friction plate 140 contacts the brake disc 200 to perform a braking function. The second friction plate 170 is slidably disposed on the bracket 110; the second motor 150 drives the second friction plate 170 to slide through the second transmission device 160, so that the second friction plate 170 contacts the brake disc 200 to play a role in parking. The first friction plate 140 functions as a brake. The primary function of the second friction plate 170 is parking. However, when the first friction plate 140 cannot be used for braking for various reasons, the second friction plate 170 may be used for braking.
The brake of the invention is provided with two sets of motors, transmission devices and friction plates, one set of motors, transmission devices and friction plates can be used as a main braking device, and the other set of motors can be used as a parking and standby braking device. When the main braking device cannot work normally, the standby braking device can brake temporarily, so that the safety risk that only one set of braking device fails and cannot brake can be avoided, and the safety is high. The two sets of motors, the transmission device and the friction plate share the same bracket, so that the structure is compact, and the occupied space is small. The first mounting groove and the third mounting groove are asymmetrically arranged or the second mounting groove and the fourth mounting groove are asymmetrically arranged, and the positions of the two mounting grooves on the third flange can be staggered, so that the third flange is prevented from being oversized due to the arrangement of the two mounting grooves. The first motor shell and the second motor shell can be sleeved on the fifth guide pin by arranging the fifth guide pin, and the fifth guide pin is fixedly arranged, so that the structure of the motor is further simplified and the motor is convenient to use.
The above is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions or improvements within the spirit of the present invention are intended to be covered by the claims of the present invention.

Claims (9)

1. A brake, comprising:
a bracket;
the first motor, the first transmission device and the first friction plate; the first friction plate is slidably arranged on the bracket;
the first motor drives the first friction plate to slide through a first transmission device;
the second motor, the second transmission device and the second friction plate; the second friction plate is slidably arranged on the bracket;
the second motor drives the second friction plate to slide through a second transmission device;
the first motor and the second motor are the same or different; the first transmission device is the same as or different from the second transmission device; the first friction plate and the second friction plate are the same or different.
2. The brake of claim 1, wherein the bracket is provided with a first receiving groove and a second receiving groove;
the first friction plate is installed in the first accommodating groove, and the second friction plate is installed in the second accommodating groove.
3. The brake of claim 1, wherein the bracket comprises a laterally extending base and first, second, and third vertically extending flanges; the first flange and the second flange are positioned at two ends of the base body and vertically protrude out of the base body; the third flange is positioned between the first flange and the second flange and protrudes out of the base body along the vertical direction; the two ends of the first friction plate are respectively connected with the first flange and the third flange, and the two ends of the second friction plate are respectively connected with the second flange and the third flange.
4. A brake according to claim 3, wherein the first flange is provided with a first mounting groove and the second flange is provided with a second mounting groove; the third flange is provided with a third mounting groove and a fourth mounting groove; the two ends of the first friction plate are respectively arranged in the first mounting groove and the third mounting groove; the two ends of the second friction plate are respectively arranged in the second mounting groove and the fourth mounting groove;
the first mounting groove and the third mounting groove are symmetrically arranged, and the second mounting groove and the fourth mounting groove are asymmetrically arranged; or the first mounting groove and the third mounting groove are asymmetrically arranged, and the second mounting groove and the fourth mounting groove are symmetrically arranged.
5. The brake of claim 4, wherein the first friction plate is provided with a pair of first lugs, the pair of first lugs being symmetrically disposed; the second friction plate is provided with a pair of second lugs which are asymmetrically arranged.
6. A brake according to claim 3, wherein the first flange has a first guide pin disposed thereon; a second guide pin is arranged on the second flange; a third guide pin and a fourth guide pin are arranged on the third flange; the brake further comprises a first shell and a second shell, wherein the first shell is connected with the first guide pin and the third guide pin; the second shell is connected with the second guide pin and the fourth guide pin, and the first guide pin, the second guide pin, the third guide pin and the fourth guide pin are arranged in a relatively sliding manner with the bracket.
7. A brake according to claim 3, wherein the first flange has a first guide pin disposed thereon; a second guide pin is arranged on the second flange; a fifth guide pin is arranged on the third flange; the brake further comprises a first shell and a second shell, wherein the first shell is connected with the first guide pin and the fifth guide pin; the second shell is connected with the second guide pin and the fifth guide pin, and the first guide pin and the second guide pin are arranged in a relatively sliding manner with the bracket; the fifth guide pin and the bracket are relatively and fixedly arranged, and the first shell and the second shell can be slidably arranged along the fifth guide pin.
8. The brake of claim 1, wherein the first motor power is greater than the second motor power; the first friction plate size is greater than the second friction plate size.
9. The brake of claim 1, wherein the first transmission comprises a ball screw and the second transmission comprises a screw nut, the screw nut being comprised of a screw and a nut.
CN202310719484.4A 2023-06-16 2023-06-16 Brake device Pending CN116877601A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310719484.4A CN116877601A (en) 2023-06-16 2023-06-16 Brake device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310719484.4A CN116877601A (en) 2023-06-16 2023-06-16 Brake device

Publications (1)

Publication Number Publication Date
CN116877601A true CN116877601A (en) 2023-10-13

Family

ID=88265220

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310719484.4A Pending CN116877601A (en) 2023-06-16 2023-06-16 Brake device

Country Status (1)

Country Link
CN (1) CN116877601A (en)

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