Disc brake assembly with single-push structure

Abstract

The utility model relates to a disc brake assembly with a single-push structure, and belongs to the field of brakes. The disc brake assembly of the single-push structure comprises a force increasing mechanism, an adjusting mechanism and a braking mechanism, the adjusting mechanism comprises an adjusting and shifting sleeve, a one-way bearing, an inner adjusting sleeve, an adjusting and rotating shaft, an adjusting sleeve and a torsional spring, the adjusting and shifting sleeve is provided with a shifting pin which is located in a shifting groove of a mounting groove, the adjusting and shifting sleeve is provided with a hole for installing the one-way bearing, and the inner adjusting sleeve is installed in an inner hole of the one-way bearing. An adjusting shaft is arranged in the middle of the inner adjusting sleeve, the lower portion of the adjusting shaft is sleeved with the torsional spring, an adjusting sleeve is arranged outside the torsional spring, and a concave-convex embedded structure is arranged between the adjusting sleeve and the threaded push rod. The gap is adjusted by the single adjusting shaft, the adjusting speed is balanced, the problem of inconsistent master and slave adjusting gaps is avoided, and the problem of small brake contact area caused by non-uniform friction of the brake blocks is avoided.

Description

Technical Field

[0001] The utility model relates to a disc brake assembly with a single-push structure, belonging to the field of brakes. Background Art

[0002] Current pneumatic disc brakes usually use a master-slave shaft clearance adjustment mechanism to match the existing commercial vehicle wheel calipers.

[0003] However, the master-slave adjustment and slave bar are suitable for large wheel hub structures. For small wheel hubs, the two adjustment shafts are large in size.

[0004] The strength of the internal structure requires difficulty in miniaturization.

[0005] At present, the adjustment gap of the single adjustment axis is still not perfect, and the gap adjustment is prone to jamming.

[0006] Lack of precision. Summary of the invention

[0007] The utility model provides a disc brake assembly with a single-push structure, which solves the problem of inconsistent clearance adjustment of double adjustment shafts.

[0008] In view of the above problems, the technical solution adopted by the utility model is:

[0009] The utility model single push structure disc brake assembly comprises a force amplification mechanism, an adjustment mechanism and a brake mechanism, and its characteristics are:

[0010] The force mechanism includes a pressure arm, a supporting ball, a semicircular bearing, and a pressure arm bushing. The supporting ball is located at the rotating upper ball of the pressure arm.

[0011] In the socket, the semicircular bearing is located at the rotating lower outer circle of the pressure arm, and the pressure arm bushing is located at the outer isolation support seat of the semicircular bearing.

[0012] A mounting groove is provided at the rotation center of the pressure arm, and a toggle groove is provided at the edge of the mounting groove;

[0013] The brake mechanism includes a threaded push rod, a support seat and a support seat, wherein a threaded hole is provided in the middle of the support seat, and the threaded push rod is provided at the bottom of the threaded push rod.

[0014] A support is provided at the bottom, and the support contacts the brake pad;

[0015] The adjustment mechanism includes a dial sleeve, a single bearing, an inner adjustment sleeve, a rotating shaft, an adjustment sleeve and a torsion spring. The entire dial sleeve is provided with a dial pin in the installation position.

[0016] In the toggle slot of the slot, the toggle sleeve has a hole for installing a one-way bearing, and the inner hole of the one-way bearing is installed with the inner adjustment sleeve.

[0017] A rotating shaft is arranged between the adjusting shaft and the torsion spring is sleeved on the lower part of the rotating shaft. An adjusting sleeve is arranged outside the torsion spring. A

[0018] A concave-convex interlocking structure is provided.

[0019] According to the single-push structure disc brake assembly, the lower end surface of the inner adjustment sleeve and the upper end surface of the outer adjustment sleeve are provided with

[0020] Ball rolling groove, in which a steel ball is installed.

[0021] According to the single-push structure disc brake assembly, the threaded push rod and the support seat are matched through double threads.

[0022] According to the single-push structure disc brake assembly, it also includes a brake bracket, which has an installation cavity inside to install the

[0023] The brake has a brake groove perpendicular to the rotation axis, and a brake block is embedded in the brake groove.

[0024] The brake bracket is provided with pins on both sides of the brake mechanism, and the pins are connected to the brake bracket with screws.

[0025] The brake bracket can slide through the column pin hole in the caliper body through the column pin hole.

[0026] According to the single-push structure disc brake assembly, a return spring is provided at the lower part of the support seat, and the return spring is

[0027] The end of the fixing plate contacts the fixing plate, and the fixing plate is provided with a hole penetrating the support. The fixing plate is fixed to the brake bracket all around.

[0028] A dustproof telescopic plate is arranged around the lower part of the mounting cavity of the rack and between the supports.

[0029] According to the single-push structure disc brake assembly, a driving sprocket is provided on the top of the rotation shaft, and a driven shaft is also provided.

[0030] The brake bracket is installed on one side of the installation cavity, the driven shaft is provided with a driven sprocket and connected with the driving sprocket through a chain, and the top of the rotating shaft is provided with a

[0031] There is an angle sensor, a dust cover is provided on the outside of the adjustment shaft, an adjustment cap is provided on the end of the driven shaft, and a dial plate is provided on the edge of the adjustment cap.

[0032] The plate is used to adjust the rotation of the driven shaft and the rotating shaft.

[0033] The utility model has the advantages that the gap can be adjusted by a single adjustment axis, the adjustment speed is balanced, and there will be no master-slave adjustment gap.

[0034] Inconsistency problem, avoid uneven friction of brake pads resulting in small brake contact area;

[0035] The internal structure adjusts the gap to rotate more smoothly, avoiding the problem of gap adjustment failure caused by structural jamming. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0037] Figure 2 This is a side structural diagram of the utility model.

[0038] Figure 3 The cutting structure of the utility model Figure 1 ,

[0039] Figure 4 The cutting structure of the utility model Figure 2 ,

[0040] Reference numerals:

[0041] 1 Caliper body, 2 Brake bracket, 3 Adjustment sleeve, 4 Single bearing, 5 Inner adjustment sleeve, 6 Adjustment shaft, 7 Adjustment sleeve, 8 Torsion spring, 9 Threaded push rod

[0042] 10 pressure arm 11 supporting ball 12 semicircular bearing 13 pressure arm bushing 14 return spring 15 fixing plate 16 dustproof telescopic plate 17

[0043] Driving sprocket 18 Driven sprocket 19 Dust cover 20 Adjustment cap 21 Pulley 22 Brake block 23 Pulley pin 24 Driven shaft 25 Support seat

[0044] 26 Supports. DETAILED DESCRIPTION

[0045] The content of the utility model is further described below:

[0046] The utility model single push structure disc brake assembly, such as Figure 1-4 As shown, it includes a force amplification mechanism, an adjustment mechanism and a braking mechanism.

[0047] The braking structure of the device is described. The force-enhancing mechanism is as follows: Figure 3 As shown in FIG. 1 , it includes a pressure arm 10, a supporting ball

[0048] 11, semicircular bearing 12, pressure arm bushing 13, the supporting ball 11 is in the rotating upper ball socket of the pressure arm 10, the semicircular bearing

[0049] 12 is located at the rotating lower outer circle of the pressure arm 10, and the pressure arm bushing 13 is located at the outer isolation support seat of the semicircular bearing 12.

[0050] A mounting groove is provided at the rotation center of the arm 10, and a toggle groove is provided at the edge of the mounting groove of the pressure arm 10.

[0051] The force-enhancing structure is driven by the braking force, and the supporting ball and semicircular bearings are used as rotation supports.

[0052] Under the rotation center dislocation structure of the circular bearing, the pressure arm forms a lever structure to push down the support seat, and the brake seat pushes the brake block to achieve braking.

[0053] The brake mechanism includes a threaded push rod 9, a support seat and a support, wherein a threaded hole is opened in the middle of the support seat, and the threaded push rod 9, the threaded

[0054] A support is provided at the lower part of the push rod 9, and the support is connected to the brake block. The force-increasing mechanism pushes the support seat, and the transmission power is the threaded push rod and the support

[0055] The seat pushes the brake pad to contact the brake disc of the car, slows down the vehicle through friction, and achieves the braking purpose.

[0056] The structure of the brake adjustment clearance of the device is described. The specific adjustment mechanism includes a dial sleeve 3, a one-way bearing

[0057] 4, inner adjustment sleeve 5, rotation shaft 6, adjustment sleeve 7 and torsion spring 8, the entire dial sleeve is provided with a pin in the dial groove of the installation groove, and the dial

[0058] The sleeve 3 is opened to install a one-way bearing, the inner hole of the one-way bearing is installed with the inner adjustment sleeve 5, and the middle of the inner adjustment sleeve 5 is provided with a rotation shaft 6.

[0059] The lower part of the rotation shaft 6 is sleeved with the torsion spring 8, the outer part of the torsion spring 8 is provided with an adjustment sleeve 7, and a recess is provided between the adjustment sleeve 7 and the threaded push rod 9.

[0060] Convex fitting structure. The adjusting sleeve is pushed and rotated by the pressure arm, and the rotational power is transferred to the inner adjusting sleeve through the one-way bearing.

[0061] The sleeve and the adjustment shaft are an integrated structure, which in turn drives the adjustment shaft to rotate. The adjustment sleeve at the lower end of the jump shaft and the jump shaft are connected by a torsion spring structure.

[0062] Cooperate with the transmission rotational power to drive the adjustment sleeve to rotate, and the adjustment sleeve then drives the threaded push rod to rotate, and the threaded push rod rotates and extends forward.

[0063] Compensate for the clearance between the brake pad and the brake disc.

[0064] If there is no gap, the threaded push rod will not rotate due to feedback, and the torsion spring between the adjustment sleeve and the jump shaft will deform, waiting for the brake to stop.

[0065] After the stop is reset, the torsion spring recovers.

[0066] The lower end surface of the inner adjustment sleeve 5 and the upper end surface of the outer adjustment sleeve of the device are provided with a ball rolling groove, and a ball steel is installed in the ball rolling groove.

[0067] The threaded push rod 9 is matched with the support seat through double threads.

[0068] The brake bracket 2 of the device has a mounting cavity inside for mounting the force-increasing mechanism, the brake mechanism and the adjustment mechanism.

[0069] The brake has a brake groove perpendicular to the rotation axis 6, and the brake block is embedded in the brake groove. The brake bracket 2 is on both sides of the brake mechanism.

[0070] A pin is provided, and the pin is connected to the brake bracket 2 by screws. The caliper body 1 is provided with a pin hole in the direction of the brake mechanism.

[0071] The bracket 2 can slide through the pin and the pin hole of the caliper body 1.

[0072] A return spring 14 is provided at the lower part of the support seat, and the other end of the return spring 14 abuts against a fixing plate 15, and a hole is provided in the fixing plate 15.

[0073] The fixing plate 15 is fixed to the brake bracket 2 for one circle, and the lower part of the mounting cavity of the brake bracket 2 is fixed to the support for one circle.

[0074] A dustproof telescopic plate 16 is provided between the seats.

[0075] The top of the rotating shaft 6 of the device is provided with a driving sprocket, and the driven shaft is provided with a side of the mounting cavity of the brake bracket 2.

[0076] The driven shaft is provided with a driven sprocket which is connected to the driving sprocket through a chain. The top of the rotating shaft 6 is provided with an angle sensor.

[0077] The driven shaft is provided with a dust cover, the end of the driven shaft is provided with an adjustment cap, the edge of the adjustment cap is provided with a dial plate, and the dial plate dials the driven shaft and the adjustment shaft 6

[0078] This structure is used for routine brake testing to ensure that the clearance compensation is in working condition when braking.

[0079] When braking, if the brake is not worn, push the paddle, but it is difficult to push the paddle because there is no gap structure.

[0080] If there is no gap adjustment and compensation, the paddle can push and drive the rotation shaft to rotate. This structure can detect the gap compensation result.

[0081] The working status of the structure.

[0082] Working principle:

[0083] When the vehicle brakes, the external brake air chamber pushes the pressure arm 4, and the pressure arm 4 increases the thrust through the force-increasing mechanism and pushes the support

[0084] The support seat 5 moves, and the support seat 10 is driven by the adjustment mechanism on the support seat 5 to push the friction plate to move toward the brake disc, completing the vehicle

[0085] Braking process.

[0086] When the pressure arm 4 rotates, the inner side of the pressure arm 4 has a pin to drive the adjustment mechanism to rotate, and the rotation of the adjustment mechanism

[0087] The movement is transmitted to the adjusting sleeve through the external puller arranged on the picking sleeve, so that the adjusting sleeve drives the threaded push rod to move and compensate the braking clearance.

[0088] The utility model uses a single adjustment shaft to adjust the gap, and the adjustment speed is balanced, so there will be no problem of inconsistent master and slave adjustment gaps.

[0089] Avoid uneven friction of the brake pads resulting in a small brake contact area; adjust the internal structure to make the clearance smoother and avoid structural

[0090] The problem of gap adjustment failure caused by sticking.

Claims

1. A single-push structure disc brake assembly, comprising a force amplification mechanism, an adjustment mechanism and a braking mechanism, characterized in that: The force-increasing mechanism comprises a pressure arm (10), a supporting ball (11), a semicircular bearing (12), and a pressure arm bushing (13); the supporting ball (11) is located in a rotating upper ball socket of the pressure arm (10); the semicircular bearing (12) is located at the rotating lower outer circle of the pressure arm (10); the pressure arm bushing (13) is located at an external isolation support seat of the semicircular bearing (12); a mounting groove is provided at the rotating center position of the pressure arm (10); and the pressure arm (10) is provided with a toggle groove at the edge of the mounting groove; The brake mechanism comprises a threaded push rod (9), a support seat and a support, wherein a threaded hole is provided in the middle of the support seat for the threaded push rod (9), and a support is provided at the lower part of the threaded push rod (9), and the support contacts the brake block; The adjustment mechanism comprises an adjustment sleeve (3), a one-way bearing (4), an inner adjustment sleeve (5), an adjustment shaft (6), an adjustment sleeve (7) and a torsion spring (8); the entire adjustment sleeve is provided with a dial pin which is located in a dial groove of the mounting groove; the adjustment sleeve (3) is provided with a hole for mounting the one-way bearing; the inner hole of the one-way bearing is provided with the inner adjustment sleeve (5); the adjustment shaft (6) is arranged in the middle of the inner adjustment sleeve (5); the torsion spring (8) is sleeved on the lower part of the adjustment shaft (6); the adjustment sleeve (7) is arranged outside the torsion spring (8); and a concave-convex fitting structure is arranged between the adjustment sleeve (7) and the threaded push rod (9).

2. The single-push structure disc brake assembly according to claim 1 is characterized in that: The lower end surface of the inner adjustment sleeve (5) and the upper end surface of the outer adjustment sleeve are provided with ball rolling grooves, and ball steel balls are installed in the ball rolling grooves.

3. The single-push structure disc brake assembly according to claim 1 is characterized in that: The threaded push rod (9) and the support seat are matched with each other through double threads.

4. The single-push structure disc brake assembly according to claim 1 is characterized in that: It also includes a brake bracket (2), which has an installation cavity inside for installing the force-increasing mechanism, the brake mechanism and the adjustment mechanism. The brake has a brake groove perpendicular to the adjustment axis (6), and a brake block is embedded in the brake groove. The brake bracket (2) is provided with pins on both sides of the brake mechanism, and the pins are connected to the brake bracket (2) by screws. The caliper body (1) is provided with a pin hole in the direction of the brake mechanism, and the brake bracket (2) can slide through the pin and the pin hole of the caliper body (1).

5. The single-push structure disc brake assembly according to claim 4 is characterized in that: A return spring (14) is provided at the lower part of the support seat, and the other end of the return spring (14) abuts against a fixing plate (15). The fixing plate (15) is provided with a hole penetrating the support seat. The fixing plate (15) is fixed to the brake bracket (2) around the periphery. A dustproof telescopic plate (16) is provided between the brackets around the lower part of the mounting cavity of the brake bracket (2).

6. The single-push structure disc brake assembly according to claim 4 is characterized in that: A driving sprocket is provided at the top of the adjustment shaft (6), and the driven shaft also includes a side of the mounting cavity where the brake bracket (2) is provided. A driven sprocket is provided on the driven shaft and is connected to the driving sprocket through a chain. An angle sensor is provided at the top of the adjustment shaft (6). A dust cover is provided on the outside of the adjustment shaft (6). An adjustment cap is provided at the end of the driven shaft. A shift plate is provided at the edge of the adjustment cap. The shift plate shifts the driven shaft and the adjustment shaft (6) for rotation adjustment.

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