CN111365386A - Novel automobile disc brake device - Google Patents

Novel automobile disc brake device Download PDF

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Publication number
CN111365386A
CN111365386A CN202010240181.0A CN202010240181A CN111365386A CN 111365386 A CN111365386 A CN 111365386A CN 202010240181 A CN202010240181 A CN 202010240181A CN 111365386 A CN111365386 A CN 111365386A
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CN
China
Prior art keywords
brake
braking
adjusting
ratchet wheel
adjusting shaft
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
CN202010240181.0A
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Chinese (zh)
Inventor
戎华庆
戎正甲
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.)
Zhejiang Ruian Auto Parts Co ltd
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CN202010240181.0A priority Critical patent/CN111365386A/en
Publication of CN111365386A publication Critical patent/CN111365386A/en
Pending legal-status Critical Current

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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
    • 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
    • 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
    • F16D65/38—Slack adjusters
    • F16D65/40—Slack adjusters mechanical
    • F16D65/42—Slack adjusters mechanical non-automatic
    • F16D65/46—Slack adjusters mechanical non-automatic with screw-thread and nut
    • 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
    • F16D65/38—Slack adjusters
    • F16D65/40—Slack adjusters mechanical
    • F16D65/52—Slack adjusters mechanical self-acting in one direction for adjusting excessive play
    • F16D65/56—Slack adjusters mechanical self-acting in one direction for adjusting excessive play with screw-thread and nut
    • F16D65/561—Slack adjusters mechanical self-acting in one direction for adjusting excessive play with screw-thread and nut for mounting within the confines of a drum 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
    • F16D2121/02—Fluid pressure
    • F16D2121/04—Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure

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

Abstract

The invention aims to provide a novel automobile disc brake device, which comprises the following steps: the brake assembly comprises a brake adjusting shaft, a front brake pad, a rear brake pad, a brake assembly, a brake mounting bracket, a brake caliper and a brake cylinder, wherein the front end of the adjusting shaft is provided with a manual hexagonal cap, the middle part of the adjusting shaft is provided with an automatic adjusting main body, a screw thread shaft at the rear end of the adjusting shaft is provided with a main wedge-shaped brake block, during braking, the main wedge-shaped brake block is wedged between two brake rollers at the lower part of a brake piston to enable the brake piston to move up and down in a piston hole, the wedge-shaped brake blocks are arranged at the tops of the two pistons and are wedged between the brake rollers at the two ends of the front brake pad and the brake rollers on the brake caliper to form expansion braking force, the front brake pad and the rear brake pad arranged on the brake caliper, and a front clamping braking force and a rear clamping braking force form braking on the rotating brake disc to ensure effective braking function, so that a vehicle can be decelerated or, the technology has the advantages of manual and automatic integrated working functions, convenience in maintenance, good braking effect, long service life and the like.

Description

Novel automobile disc brake device
Technical Field
The invention relates to the technical field of disc brakes of automobile braking systems, in particular to a novel automobile disc brake device.
Background
In the existing automobile brake system, two common brake methods are adopted for medium and large trucks: drum brake, disc brake, and the drum brake device mainly comprises brake cylinder, adjusting arm, cam shaft, brake shoe, and brake drum. The disc brake technology device mainly comprises a brake air pressure sub pump, a brake disc, a front brake pad, a rear brake pad, a brake caliper, a brake assembly and other parts, wherein the rear brake pad is arranged at the rear end of the brake caliper, the brake assembly is divided into two types, one type is a hydraulic piston type and is mainly used on the small-sized vehicle, the other type is a pneumatic brake piston type and is mainly assembled on the medium-sized truck and the large-sized truck, and the two brake assemblies have the function of automatically adjusting the brake clearance, a specific expansion space is arranged between a front brake pad and a brake caliper, a brake assembly is arranged in the space, when braking starts, a brake air pressure cylinder pushes a brake piston arranged in the middle of the brake assembly to generate braking force to be transmitted to the front end and the rear end, the front brake pad moves forwards to generate braking pressure, the brake caliper drives a rear brake pad to move backwards to generate braking pressure to gradually clamp a rotating brake disc to form braking, and therefore a vehicle can be decelerated or stopped in time.
Disclosure of Invention
The novel disc brake technical device is realized by the following measures, and the novel disc brake technical device is respectively composed of a brake disc (1), a rear brake pad (2), a front brake pad (3), a brake assembly (4), a brake mounting bracket (5), a brake caliper (6), a brake roller (7) arranged on the front brake pad, a return spring (8), a manual adjusting dense ring cover screw hole (9), a manual hexagonal cap (10) arranged on a brake adjusting shaft, a brake sub-pump push rod (11), a locking bolt (12), a brake piston (13), a wedge type brake block (14), a brake roller (15) arranged on the brake caliper, a brake assembling bolt (16), a manual positioning bolt (17), a manual positioning spring (18), a manual positioning steel ball (19), a front ratchet wheel tooth seat (20) arranged on the brake adjusting shaft, and a front ratchet wheel tooth seat (20), The brake device comprises a rear ratchet wheel tooth seat (21), an adjusting spring (22), a brake shell (23), a brake roller (24) arranged on a piston, a main wedge type brake block (25) arranged in a square hole of the brake shell, a rigid piston sealing ring (26), a brake adjusting shaft (27), a rotary thread (28) arranged between the brake adjusting shaft and the main wedge type brake block, trunnions (29) arranged at two ends of the rear ratchet wheel tooth seat, a rolling wheel sleeve (30) arranged on the trunnions, a rotary chute (31) arranged on an automatic adjusting main body, a positioning hole (32), an automatic adjusting main body (33) and a straight groove (34) arranged on the automatic adjusting main body. This technical device sets up in proper order from front to back on a central axis: a brake cylinder push rod, a manual adjustment hexagonal cap is arranged at the front end of a brake adjustment shaft, a front ratchet wheel seat is also arranged on the brake adjustment shaft, a rotary screw thread is arranged in a middle hole of a main wedge-shaped brake block at the rear end of the brake adjustment shaft, an automatic adjustment main body is arranged in a circular hole of a brake shell and can rotate left and right in the hole, a rear ratchet wheel seat is arranged at the front end of the automatic adjustment main body, teeth on the rear ratchet wheel seat are matched with teeth on the front ratchet wheel seat of the brake adjustment shaft to form a one-way working surface, trunnions are arranged on the central line of two ends of the rear ratchet wheel seat, rolling wheel sleeves are arranged on the trunnions, the rear ratchet wheel seat is assembled in the circular hole at the front end of the automatic adjustment main body, the two trunnions and the rolling wheel sleeves are arranged in straight grooves of the automatic adjustment main body left and right, an adjustment spring is arranged at the rear end of the rear ratchet wheel seat, the locking bolt arranged on the brake shell is loosened and separated from the positioning hole, the automatic adjusting main body is in a manual debugging working state, when the adjusting shaft is rotated leftwards and rightwards, the manual positioning steel ball overcomes the pressure of the manual positioning spring, the manual positioning steel ball rolls out of the positioning hole and rolls into the next positioning hole, when the brake adjusting shaft is rotated anticlockwise manually, the main wedge type brake block is driven by the rotating thread to move backwards to form braking, at the moment, the braking gap is zero, on the contrary, when the brake adjusting shaft is rotated clockwise manually, the main wedge type brake block moves forwards to release the braking, the manual positioning steel ball skips over the 3-4 holes of the positioning hole, the braking gap is 0.4-0.7 mm, when the manual debugging work is finished, the locking bolt is screwed down the automatic adjusting main body and the brake shell are formed into a whole, the brake assembly enters the automatic adjusting working state, and when the push rod of the brake cylinder generates braking thrust, all parts arranged on the brake adjusting shaft move backwards at the same time, because the front and the back of the main wedge-shaped brake block are arranged into a certain bevel angle, the main wedge-shaped brake block moves backwards and is wedged between the brake rollers on the upper piston and the lower piston, the brake pistons move upwards and downwards, and the wedge-shaped brake blocks arranged on the upper part of the upper piston and the lower piston are wedged into the brake roller on the front brake pad and the back brake roller on the brake caliper at the same time, the front brake pad and the back brake pad arranged on the brake caliper brake, the front clamping force and the back clamping force brake the rotating brake disc, when the brake gap is in a normal condition, the distance of the backward movement of the brake adjusting shaft is short, the left trunnion, the right trunnion and the rolling wheel sleeve on the back ratchet wheel seat can not enter the rotating bevel groove of the automatic adjusting body, and the left trunnion and the rolling wheel sleeve in the front of the rotating bevel groove move forwards and, when the braking gap is larger than the normal braking gap, the backward movement distance of the braking adjusting shaft is prolonged, the left and right trunnions and the rolling wheel sleeve enter respective rotating chutes of the automatic adjusting main body, the rear ratchet wheel seat starts to rotate clockwise, the adjusting spring is compressed by moving backward, the teeth on the two tooth seats start to separate and move from the tooth bottom to the tooth top and return to the next tooth after crossing the tooth top, when the braking adjusting shaft moves forward when the braking is finished, the adjusting spring pushes the rear ratchet wheel seat out of the automatic adjusting main body, the left and right trunnions and the rolling wheel sleeve rotate out of the rotating chutes in the counterclockwise direction, because the front and rear ratchet wheel seats are one-way working surfaces, the braking adjusting shaft simultaneously rotates in the counterclockwise direction, the braking gap is automatically adjusted by the backward movement of the main wedge type brake block under the influence of the threads of the braking adjusting shaft, and the left and right trunnions and the rolling wheel sleeve of the, The rotatory chute that right side both ends set up, the place ahead sets up the straight flute, and the rotatory chute is set up to the rear, and the angle that the rotatory chute on the left side set up is ascending, and the angle that the rotatory chute on the right set up is decurrent, sets up rigid piston sealing ring in brake housing brake piston hole.
Drawings
Fig. 1 is a schematic view showing the structural arrangement of main components of a novel automobile disc brake device.
Fig. 2 is a schematic plan view of a novel automobile disc brake device, which is composed of a brake caliper (6), a brake roller (7) arranged on a front brake pad, a rear brake pad (2), a brake disc (1), a front brake pad (3), a return spring (8), a manual adjusting seal cover screw hole (9), a manual hexagonal cap (10) arranged on a brake adjusting shaft, a brake cylinder push rod (11), locking bolts (12), and a brake direction indicated by an arrow → ← and main component structures are arranged.
Fig. 3 is a structural arrangement section assembly schematic diagram of a novel automobile disc brake device, which comprises a brake piston (13), a wedge-type brake block (14), a brake roller (15) arranged on a brake caliper, a brake mounting bracket (5), a brake assembling bolt (16), a manual positioning bolt (17), a manual positioning spring (18), a manual positioning steel ball (19), a front ratchet wheel tooth seat (20) arranged on a brake adjusting shaft, a rear ratchet wheel tooth seat (21), an adjusting spring (22), a locking bolt (12) and main parts.
Fig. 4 shows a novel automotive disc brake device according to the present invention, which comprises a brake housing (23), a brake roller (24) disposed on a piston, a main wedge brake pad (25) disposed in a square hole of the brake housing, a rigid piston seal ring (26), a brake adjusting shaft (27), a rotary screw (28) disposed between the brake adjusting shaft and the main wedge brake pad, and the main wedge brake pad automatically adjusts a brake clearance gradually backwards to a final limit, and at this time, a new brake friction lining needs to be replaced.
Fig. 5 shows a novel automobile disc brake device, which comprises a brake mounting bracket (5), a brake housing (23), a main wedge type brake block (25) arranged in a square hole of the brake housing, a brake adjusting shaft (27), a brake assembling bolt (16), a wedge type brake block (14), a brake piston (13), a rotating thread (28) arranged between the brake adjusting shaft and the main wedge type brake block, and an AA section structure.
Fig. 6 is a schematic side view of a brake adjusting shaft (27) and a front ratchet wheel tooth seat (20) arranged on the brake adjusting shaft, a side view of a rear ratchet wheel tooth seat (21), trunnions (29) arranged at two ends of the rear ratchet wheel tooth seat and a rolling wheel sleeve (30), an adjusting spring (22), a rotating inclined groove (31) arranged on an automatic adjusting main body, a positioning hole (32), an automatic adjusting main body (33), a straight groove (34) arranged on the automatic adjusting main body, a manual adjusting hexagonal cap (10) and a side view section.
Fig. 7 is a schematic diagram showing the disc type function device of the novel automobile, when the braking adjusting shaft (27) is braked to move backwards for a longer distance, the front ratchet wheel seat (20), the rear ratchet wheel seat (21) and the adjusting spring (22) arranged at the front end of the automatic adjusting main body (33) are all pressed into a circular hole of the automatic adjusting main body (33), meanwhile, two trunnions (29) and the rolling wheel sleeve (30) at two ends of the rear ratchet wheel seat (21) are also pressed into a rotating inclined groove (31) of the automatic adjusting main body, and teeth of the two tooth seats start to separate during rotation of the rear ratchet wheel seat (21) to generate a tooth jumping action, wherein the work is enlarged in a schematic diagram showing a braking direction indicated by an arrow → arrow.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the accompanying drawings, but the present invention is not limited to these examples.
As shown in fig. 1.. 7, the present invention relates to a novel automotive disc brake device, and the present embodiment is designed for large buses, medium and large trucks, and is described in detail, when the disc brake assembly (4) is installed in a brake system, it is fixed on a mounting bracket (5) by a brake assembling bolt (16), and the technical device is sequentially arranged from front to back on a central axis: a brake cylinder push rod (11), a brake adjusting shaft (27), a manual adjusting hexagonal cap (10) arranged at the front end of the brake adjusting shaft, a front ratchet tooth seat (20) arranged on the brake adjusting shaft, a rotary screw thread (28) arranged in the middle hole of the rear end of the brake adjusting shaft and a main wedge-shaped brake block (25), because the main wedge-shaped brake block (25) is arranged in the square hole of the brake shell, when the brake adjusting shaft rotates left and right, the main wedge-shaped brake block moves front and back in the square hole, an automatic adjusting main body (33) is arranged in the circular hole of the brake shell (23), the automatic adjusting main body can rotate left and right in the circular hole, a rear ratchet tooth seat (21) is arranged at the front end of the automatic adjusting main body, the teeth of the rear ratchet tooth seat are matched with the teeth of the front ratchet tooth seat of the brake adjusting shaft to form a one-way working surface, and trunnions (29) are arranged on the central lines, the trunnion is provided with a rolling wheel sleeve (30), the rear ratchet wheel seat is assembled in a straight groove (34) of the automatic adjusting main body, the rear end of the rear ratchet wheel seat is provided with an adjusting spring (22), the excircle of the rear end of the automatic adjusting main body is provided with equal positioning holes (32), a locking bolt (12) arranged on the brake shell (23) is loosened to be separated from a fixing hole, the automatic adjusting main body is in a manual debugging working state, when the brake adjusting shaft is rotated leftwards and rightwards, a manual fixing steel ball (19) overcomes the pressure of a manual positioning spring (18), the brake adjusting shaft rolls out from the positioning hole and rolls into the next positioning hole, at the moment, a 'clicking' sound is generated, when the brake adjusting shaft is rotated anticlockwise manually, the main wedge type brake block is pushed by a rotating thread to move backwards in a square hole of the shell to form braking, at the moment, the braking gap is zero, on the contrary, when the brake adjusting shaft is rotated clockwise manually, the main wedge type brake block moves forwards to release braking, a manual positioning steel ball jumps over a 3-4 hole of a positioning hole, a braking interval is divided by 0.4-0.7 mm, a locking bolt is screwed up to form an integrated body with an automatic adjusting main body and a brake shell after manual debugging work is finished, a disc brake enters an automatic adjusting working state, when a brake cylinder push rod generates braking thrust to move from front to back, all parts arranged on a brake adjusting shaft simultaneously enter the braking working state, because the front part and the back part of the main wedge type brake block are arranged into a certain oblique angle, the main wedge type brake block is wedged into braking rollers (24) on two pistons backwards, a braking piston (13) moves upwards and downwards in two directions, and wedge type brake blocks (14) arranged at the tops of the upper piston and the lower piston are wedged into a braking roller (7) on the front braking block (3) and a braking roller (15) arranged on a braking caliper (6) simultaneously, the expansion braking force is formed, the front brake pad and the rear brake pad (2) arranged on the brake caliper, the front and rear clamping braking force brakes the rotating brake disc (1) to ensure the effective braking function, so that the vehicle can be decelerated or stopped in time in the running process, the return spring (8) arranged at the top of the wedge type brake pad is also compressed, when the braking gap is in a normal condition, the distance of the backward movement of the braking adjusting shaft is short, at the moment, the left and right trunnions and the rolling wheel sleeves on the rear ratchet wheel seat move forward and backward in a straight groove in front of the rotating inclined groove, when the braking gap is larger than the normal braking gap, the backward movement distance of the braking adjusting shaft is prolonged, the left and right trunnions and the rolling wheel sleeves enter the respective rotating inclined grooves (31) of the automatic adjusting main body, and the rear ratchet wheel seat starts to rotate clockwise, the adjusting spring moves backwards and is compressed, simultaneously, the teeth on the two tooth seats start to separate, the adjusting spring moves from the tooth bottom to the tooth top and returns to the next tooth after crossing the tooth top, when braking is finished, the braking thrust is relieved when the braking adjusting shaft moves forwards, the braking pressure of the rotating screw thread between the braking adjusting rod and the main wedge type brake block is in a relaxed state, the adjusting spring forcibly ejects the rear ratchet tooth seat out of the automatic adjusting main body, because the front and rear ratchet tooth seats are one-way working surfaces, the braking adjusting shaft rotates anticlockwise simultaneously, the main wedge type brake block moves backwards in a square hole of the brake shell under the influence of the rotating force of the screw thread of the braking adjusting shaft, simultaneously the upper and lower braking pistons and the wedge type brake blocks move upwards and downwards to restore the normal braking gap, when a vehicle runs for a certain number of kilometers, the front and rear brake blocks are worn to a safety line, the main wedge type brake block of the automatic adjusting mechanism of the disc brake moves backwards to the limit, a new front brake block and a new rear brake block need to be replaced, the locking bolt is loosened and separated from the positioning hole, the manual hexagonal cap is debugged by a wrench, the main wedge type brake block is pulled back to the adjusting zero position from back to front by rotating the brake adjusting shaft clockwise, the old front brake block and the old rear brake block are detached, the new front brake block and the new rear brake block are installed in a brake system, the brake adjusting shaft is debugged and rotated by the wrench, the manual debugging stage of a new round is started at the moment, a rigid piston sealing ring (26) is arranged in a brake piston hole of a brake shell, and when the disc brake generates high temperature during braking, the inside of the brake shell is ensured to.
The particular embodiments described herein are illustrative only, as various modifications or additions may be made or substituted in a similar manner to the particular embodiments described without departing from the spirit or ambit of the invention as defined in the appended claims.
Although more brake discs (1), rear brake pads (2), front brake pads (3), brake assemblies (4), brake mounting supports (5), brake calipers (6), brake rollers (7) arranged on the front brake pads, return springs (8), manual adjusting close ring cover screw holes (9), manual hexagonal caps (10) arranged on brake adjusting shafts, brake cylinder push rods (11), locking bolts (12), brake pistons (13), wedge type brake blocks (14), brake rollers (15) arranged on the brake calipers, brake assembling bolts (16), manual positioning bolts (17), manual positioning springs (18), manual positioning steel balls (19), front ratchet wheel tooth seats (20) arranged on the brake adjusting shafts, rear ratchet wheel tooth seats (21), adjusting springs (22), brake shells (23), Brake roller (24) set on the piston, main wedge type brake block (25) set in square hole of the brake shell, rigid piston sealing ring (26), brake adjusting shaft (27), rotary screw thread (28) set between the brake adjusting shaft and the main wedge type brake block, trunnions (29) set at two ends of the rear ratchet wheel tooth seat, rolling wheel sleeve (30) set on the trunnions, rotary inclined slot (31) set on the automatic adjusting body, positioning hole (32), automatic adjusting body (33), straight slot (34) set on the automatic adjusting body, and other terms, but the possibility of using other terms is not excluded, and these terms are only used for convenience of description and explanation of essence of the invention: they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims (1)

1. A novel automobile disc brake device is characterized in that: the novel disc brake technical device comprises a brake disc (1), a rear brake pad (2), a front brake pad (3), a brake assembly (4), a brake mounting bracket (5), a brake caliper (6), a brake roller (7) arranged on the front brake pad, a return spring (8), a manual adjusting close ring cover screw hole (9), a manual hexagonal cap (10) arranged on a brake adjusting shaft, a brake cylinder push rod (11), a locking bolt (12), a brake piston (13), a wedge type brake block (14), a brake roller (15) arranged on the brake caliper, a brake assembling bolt (16), a manual positioning bolt (17), a manual positioning spring (18), a manual positioning steel ball (19), a front ratchet wheel tooth seat (20) arranged on the brake adjusting shaft, a rear ratchet wheel tooth seat (21), an adjusting spring (22), a front ratchet wheel tooth seat and a rear ratchet wheel tooth seat, The brake comprises a brake shell (23), a brake roller (24) arranged on a piston, a main wedge type brake block (25) arranged in a square hole of the brake shell, a rigid piston sealing ring (26), a brake adjusting shaft (27), a rotary thread (28) arranged between the brake adjusting shaft and the main wedge type brake block, trunnions (29) arranged at two ends of a rear ratchet tooth seat, a rolling wheel sleeve (30) arranged on the trunnions, a rotary chute (31) arranged on an automatic adjusting main body, a positioning hole (32), an automatic adjusting main body (33) and a straight groove (34) arranged on the automatic adjusting main body. This technical device sets up in proper order from front to back on a central axis: a brake cylinder push rod, a manual adjustment hexagonal cap is arranged at the front end of a brake adjustment shaft, a front ratchet wheel seat is also arranged on the brake adjustment shaft, a rotary screw thread is arranged in a middle hole of a main wedge-shaped brake block at the rear end of the brake adjustment shaft, an automatic adjustment main body is arranged in a circular hole of a brake shell and can rotate left and right in the hole, a rear ratchet wheel seat is arranged at the front end of the automatic adjustment main body, teeth on the rear ratchet wheel seat are matched with teeth on the front ratchet wheel seat of the brake adjustment shaft to form a one-way working surface, trunnions are arranged on the central line of two ends of the rear ratchet wheel seat, rolling wheel sleeves are arranged on the trunnions, the rear ratchet wheel seat is assembled in the circular hole at the front end of the automatic adjustment main body, the two trunnions and the rolling wheel sleeves are arranged in straight grooves of the automatic adjustment main body left and right, an adjustment spring is arranged at the rear end of the rear ratchet wheel seat, the locking bolt arranged on the brake shell is loosened and separated from the positioning hole, the automatic adjusting main body is in a manual debugging working state, when the adjusting shaft is rotated leftwards and rightwards, the manual positioning steel ball overcomes the pressure of the manual positioning spring, the manual positioning steel ball rolls out of the positioning hole and rolls into the next positioning hole, when the brake adjusting shaft is rotated anticlockwise manually, the main wedge type brake block is driven by the rotating thread to move backwards to form braking, at the moment, the braking gap is zero, on the contrary, when the brake adjusting shaft is rotated clockwise manually, the main wedge type brake block moves forwards to release the braking, the manual positioning steel ball skips over the 3-4 holes of the positioning hole, the braking gap is 0.4-0.7 mm, when the manual debugging work is finished, the locking bolt is screwed down the automatic adjusting main body and the brake shell are formed into a whole, the brake assembly enters the automatic adjusting working state, and when the push rod of the brake cylinder generates braking thrust, all parts arranged on the brake adjusting shaft move backwards at the same time, because the front and the back of the main wedge-shaped brake block are arranged into a certain bevel angle, the main wedge-shaped brake block moves backwards and is wedged between the brake rollers on the upper piston and the lower piston, the brake pistons move upwards and downwards, and the wedge-shaped brake blocks arranged on the upper part of the upper piston and the lower piston are wedged into the brake roller on the front brake pad and the back brake roller on the brake caliper at the same time, the front brake pad and the back brake pad arranged on the brake caliper brake, the front clamping force and the back clamping force brake the rotating brake disc, when the brake gap is in a normal condition, the distance of the backward movement of the brake adjusting shaft is short, the left trunnion, the right trunnion and the rolling wheel sleeve on the back ratchet wheel seat can not enter the rotating bevel groove of the automatic adjusting body, and the left trunnion and the rolling wheel sleeve in the front of the rotating bevel groove move forwards and, when the braking gap is larger than the normal braking gap, the backward movement distance of the braking adjusting shaft is prolonged, the left and right trunnions and the rolling wheel sleeve enter respective rotating chutes of the automatic adjusting main body, the rear ratchet wheel seat starts to rotate clockwise, the adjusting spring is compressed by moving backward, the teeth on the two tooth seats start to separate and move from the tooth bottom to the tooth top and return to the next tooth after crossing the tooth top, when the braking adjusting shaft moves forward when the braking is finished, the adjusting spring pushes the rear ratchet wheel seat out of the automatic adjusting main body, the left and right trunnions and the rolling wheel sleeve rotate out of the rotating chutes in the counterclockwise direction, because the front and rear ratchet wheel seats are one-way working surfaces, the braking adjusting shaft simultaneously rotates in the counterclockwise direction, the braking gap is automatically adjusted by the backward movement of the main wedge type brake block under the influence of the threads of the braking adjusting shaft, and the left and right trunnions and the rolling wheel sleeve of the, The rotatory chute that right side both ends set up, the place ahead sets up the straight flute, and the rotatory chute is set up to the rear, and the angle that the rotatory chute on the left side set up is ascending, and the angle that the rotatory chute on the right set up is decurrent, sets up rigid piston sealing ring in brake housing brake piston hole.
CN202010240181.0A 2020-03-20 2020-03-20 Novel automobile disc brake device Pending CN111365386A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010240181.0A CN111365386A (en) 2020-03-20 2020-03-20 Novel automobile disc brake device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010240181.0A CN111365386A (en) 2020-03-20 2020-03-20 Novel automobile disc brake device

Publications (1)

Publication Number Publication Date
CN111365386A true CN111365386A (en) 2020-07-03

Family

ID=71205092

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010240181.0A Pending CN111365386A (en) 2020-03-20 2020-03-20 Novel automobile disc brake device

Country Status (1)

Country Link
CN (1) CN111365386A (en)

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