Clearance compensation brake with single brake shaft

Abstract

The utility model relates to a backlash compensation brake with a single brake shaft, and belongs to the field of brakes. According to the technical scheme, the device comprises a force increasing mechanism, a supporting seat and a compensation adjusting assembly, a mounting hole for mounting the compensation adjusting assembly is formed in the middle of the supporting seat, the force increasing mechanism is mounted above a brake seat, the supporting seat is connected with the compensation adjusting assembly through a shifting mechanism, and the compensation adjusting assembly is connected with an inner hole of a thrust seat; the compensation adjusting assembly comprises a middle adjusting mandrel, an inner adjusting sleeve, a plurality of inner tooth clutch gaskets, a plurality of outer tooth clutch gaskets and an adjusting sleeve. The device is matched to form a whole, and gaps generated after friction plates are abraded can be effectively compensated; when no overlarge brake clearance needs to be compensated, the adjusting mandrel and the inner adjusting sleeve do not rotate, the torsion spring 20 is expanded, the adjusting mandrel can continue to rotate, the function of a one-way clutch is achieved, it is guaranteed that overload is avoided, and the service life of the adjusting mechanism is guaranteed.

Description

Technical Field

[0001] The utility model relates to a single-braking-axle clearance compensating brake, belonging to the field of brakes. Background Art

[0002] The current brake structure is a double brake adjustment gap structure, and its braking performance is balanced.

[0003] The double adjustment axis has a complex structure and a large volume, and is prone to unstable clearance adjustment on one side. The single adjustment axis has a small structure and only requires a single brake adjustment axis, which is highly reliable.

[0004] However, the current structure is based on the situation that the adjustment shaft and the internal adjustment components rotate, which requires the installation of a one-way clutch. The installation of the one-way clutch is extremely difficult in this device and requires a strong mechanism to press it in, which is easy to cause damage during installation. Summary of the invention

[0005] The present invention provides a single brake shaft clearance compensation brake, which solves the problem of one-way rotation failure and improves the convenience of product installation.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A single brake shaft clearance compensation brake comprises a force-increasing mechanism, a support seat and a compensation adjustment component. A mounting hole is opened in the middle of the support seat to install the compensation adjustment component. The force-increasing mechanism is installed above the brake seat. The support seat and the compensation adjustment component are connected through a toggle mechanism. The compensation adjustment component is connected to the inner hole of the thrust seat.

[0008] The compensation adjustment assembly includes a central adjustment mandrel, an inner adjustment sleeve, a plurality of inner-tooth clutch gaskets, and a plurality of outer-tooth clutch gaskets.

[0009] and adjustment sleeve;

[0010] The top of the adjusting mandrel is provided with a pin fork mechanism which is connected with the force amplifying mechanism;

[0011] The upper part of the adjusting mandrel is a large diameter, and the lower part is a small diameter. The coaxial bearing a at the large diameter end is arranged in the mounting hole in the middle of the thrust seat. An inner adjusting sleeve is arranged at the step position formed by the large diameter and the small diameter. A torsion spring is arranged between the inner adjusting sleeve and the adjusting mandrel.

[0012] The outer surface of the inner adjustment is provided with an inner tooth groove, the inner diameter of the inner tooth clutch gasket is provided with inner teeth and embedded in the inner tooth groove, the inner tooth clutch gasket and the double outer tooth clutch gasket are stacked on each other, the double outer tooth clutch gasket is provided with outer teeth, the inner diameter of the adjustment sleeve is provided with an outer tooth groove, and the outer teeth of the double outer tooth clutch gasket are embedded in the outer tooth groove; the outer peripheral surface of the adjustment sleeve is connected to the inner hole of the thrust seat through a double thread.

[0013] According to the single brake shaft clearance compensating brake, the upper bearing is arranged in the mounting hole in the support seat and cooperates with the adjustment core shaft. A boss is provided at the bottom of the support seat and an inner hole is provided at the adjustment sleeve. Both bosses are embedded in the inner hole and can rotate freely.

[0014] According to the single-brake shaft clearance compensating brake, the lower part of the adjusting spindle is sleeved on the adjusting sleeve, with a return spring and a bearing arranged therebetween, and the upper and lower ends of the double external-tooth clutch gasket and the internal-tooth clutch gasket are respectively provided with wear-resistant pads a and wear-resistant pads b, and the upper part of the return spring abuts against the wear-resistant gasket, and the lower part abuts against the lower bearing, and a bearing support sleeve is arranged between the adjusting sleeve and the lower bearing so that the adjusting sleeve and the adjusting spindle are tightly fitted on the adjusting spindle through the bearing so that the entire adjusting mechanism forms an integrated whole.

[0015] According to the single-brake shaft clearance compensating brake, a torsion spring is provided between the adjusting mandrel and the inner adjusting sleeve so that the adjusting mandrel and the inner adjusting sleeve are tightly embraced to form a whole.

[0016] According to the single brake shaft clearance compensating brake, the force amplifying mechanism includes a pressure arm and a roller, a pressure arm bushing is provided between the pressure arm and the roller, a semicircular bearing is provided between the pressure arm and the support seat, the contact arc surface of the pressure arm on the roller and semicircular bearing side is non-concentric, and the contact arc surface on the semicircular bearing side is larger than the arc surface on the other side, and limiting grooves are provided on both sides of the support seat to ensure that the semicircular bearing can only rotate on the support seat, a cylindrical pin is provided on the inner side of the pressure arm, and a notch is provided on the adjustment core shaft, the cylindrical pin is inserted in the notch, and when the pressure arm rotates, the adjustment core shaft is rotated by the cylindrical pin.

[0017] The advantages of the utility model are:

[0018] The device cooperates to form a whole, which can effectively compensate for the gap caused by the wear of the friction plate; when there is no excessive brake gap to be compensated, the adjustment mandrel and the inner adjustment sleeve will not rotate, the torsion spring 20 will expand, and the adjustment mandrel can continue to rotate, which has the function of a one-way clutch, ensuring that there will be no overload, and the service life of the adjustment mechanism is guaranteed.

[0019] Compared with the structure of installing a one-way clutch, the installation is more convenient and avoids the complicated installation problem of the original one-way clutch. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a top view of the utility model.

[0021] Figure 2 It is a top view of the utility model.

[0022] Figure 3 The cutting structure of the utility model Figure 1 ,

[0023] Figure 4The cutting structure of the utility model Figure 2 .

[0024] Figure 5 This is an assembly relationship diagram of the adjustment mandrel and the external-tooth clutch gasket and the internal-tooth clutch gasket of the utility model.

[0025] Reference numerals:

[0026] 1. Pressure arm, 2. Roller, 3. Bushing, 4. Semicircular bearing, 5. Support seat, 6. Adjustment sleeve, 7. Thrust seat, 8. Return spring, 9. Bearing support sleeve, 10. Lower bearing, 11. Boss, 12. Toggle pin, 13. Adjustment mandrel, 14. Upper bearing, 15. Torsion spring, 16. Inner adjustment sleeve, 17. Wear-resistant pad a, 18. External clutch gasket, 19. Internal clutch gasket, 20. Wear-resistant gasket b, 21. Upper adjustment sleeve. DETAILED DESCRIPTION

[0027] The utility model single brake shaft clearance compensation brake comprises a force amplification mechanism, a support seat 5 and a compensation adjustment component. A mounting hole is opened in the middle of the support seat 5 to install the compensation adjustment component. The force amplification mechanism is installed above the brake seat. The support seat 5 is connected to the compensation adjustment component through a toggle mechanism, and the compensation adjustment component is connected to the inner hole of the thrust seat 7.

[0028] The compensation adjustment assembly includes a middle adjustment mandrel 13, an inner adjustment sleeve 16, a plurality of inner-tooth clutch washers 19, a plurality of outer-tooth clutch washers and an adjustment sleeve 6; a pin shaft fork mechanism is provided on the top of the adjustment mandrel 13 and is connected with the force amplification mechanism; the upper part of the adjustment mandrel 13 is a large diameter, and the lower part is a small diameter. An inner adjustment sleeve 16 is provided at the step position formed by the large diameter and the small diameter, and a torsion spring 15 is provided between the inner adjustment sleeve 16 and the adjustment mandrel 13;

[0029] The outer surface of the inner adjustment is provided with an inner tooth groove, the inner diameter of the inner tooth clutch gasket 19 is provided with inner teeth and embedded in the inner tooth groove, the inner tooth clutch gasket 19 and the double outer tooth clutch gasket 18 are stacked on each other, the double outer tooth clutch gasket 18 is provided with outer teeth, the inner diameter of the adjustment sleeve 6 is provided with an outer tooth groove, and the outer teeth of the double outer tooth clutch gasket 18 are embedded in the outer tooth groove; the outer peripheral surface of the adjustment sleeve 6 is connected to the inner hole of the thrust seat 7 through a double thread.

[0030] The upper bearing 14 is arranged in the mounting hole in the support seat 7 and cooperates with the adjustment mandrel 13. The bottom of the support seat 7 is provided with a boss, and the adjustment sleeve 6 is provided with an inner hole. The bosses of both are embedded in the inner hole and can rotate freely. The lower part of the adjustment mandrel 13 is sleeved on the adjustment sleeve 6, and a return spring 8 and a bearing are arranged between them. The upper and lower ends of the double external tooth clutch gasket 18 and the internal tooth clutch gasket 19 are respectively provided with wear-resistant pads a17 and wear-resistant pads b, and the upper part of the return spring 8 is against the wear-resistant pads

[0031] The lower part of the sheet 20 abuts against the lower bearing 10, and a bearing support sleeve 9 is arranged between the adjusting sleeve 6 and the lower bearing 10 so that the adjusting sleeve 6 and the adjusting mandrel 13 are tightly fitted on the adjusting mandrel 13 through the bearing 10, so that the whole adjusting mechanism is integrated.

[0032] A torsion spring 15 is provided between the adjusting mandrel 13 and the inner adjusting sleeve 16 so that the adjusting mandrel 13 and the inner adjusting sleeve 16 are tightly held together to form a whole.

[0033] The force amplification mechanism includes a pressure arm 1 and a roller 2, a pressure arm 1 bushing 3 is provided between the pressure arm 1 and the roller 2, a semicircular bearing 4 is provided between the pressure arm 1 and the support seat 55, the contact arc surface of the pressure arm 1 on the roller 2 and semicircular bearing 4 side is non-concentric, and the contact arc surface on the semicircular bearing 4 side is larger than the arc surface on the other side, and there are limit grooves on both sides of the support seat 55 to ensure that the semicircular bearing 4 can only rotate on the support seat 5, a cylindrical pin is provided on the inner side of the pressure arm 1, and a notch is provided on the adjustment core shaft 13, the cylindrical pin is inserted in the notch, and when the pressure arm 1 rotates, the adjustment core shaft 13 is rotated by the cylindrical pin.

[0034] Working principle: When the vehicle brakes, external force pushes the pressure arm 1, which increases the thrust through the force-increasing mechanism and pushes the support seat 5 to move. The adjustment mechanism on the support seat 5 drives the thrust seat 5 to push the friction plate toward the brake disc, completing the vehicle braking process.

[0035] When the pressure arm 1 rotates, the cylindrical pin on the inner side of the pressure arm 1 drives the adjusting mandrel 6 to rotate, and the rotational motion of the adjusting sleeve 6 is transmitted to the inner adjusting sleeve 16 through the torsion spring 20, so that the inner adjusting sleeve 1 rotates, and the inner adjusting sleeve 16 drives the inner gear clutch gasket through the convex teeth at one end, and the wear-resistant gasket 20 makes the double external gear clutch gasket 18 form a whole with the two inner grooves set in the adjusting sleeve 6 through the double external teeth on both sides under the action of the return spring 8, and the adjusting mandrel 13 rotates to drive the adjusting sleeve 6 to rotate, and the double threads provided on the dial sleeve 6 cooperate with the double threads provided in the inner hole of the thrust seat 7 to form an integral linear motion to compensate for the gap generated after the friction plate wears; when there is no excessive brake clearance to be compensated, the adjusting mandrel 6 and the inner adjusting sleeve 16 will not rotate, and the torsion spring 20 will expand accordingly, while the adjusting mandrel 6 can continue to rotate, and the torsion spring 20 has the function of a one-way clutch to ensure that it will not be overloaded, and the service life of the adjustment mechanism is guaranteed.

Claims

1. A single-brake shaft clearance compensation brake, comprising a force-increasing mechanism, a support seat (5) and a compensation adjustment component, wherein a mounting hole is provided in the middle of the support seat (5) for mounting the compensation adjustment component, the force-increasing mechanism is mounted above the brake seat, the support seat (5) and the compensation adjustment component are connected via a toggle mechanism, and the compensation adjustment component is connected to an inner hole of a thrust seat (7); Its characteristics are: The compensating adjustment component comprises a central adjustment mandrel (13), an inner adjustment sleeve (16), a plurality of inner-tooth clutch gaskets (19), a plurality of outer-tooth clutch gaskets and an adjustment sleeve (6); A pin fork mechanism is provided on the top of the adjustment mandrel (13) and is connected to the force amplification mechanism; The upper part of the adjustment mandrel (13) has a large diameter, and the lower part has a small diameter. An inner adjustment sleeve (16) is provided at a step position formed by the large diameter and the small diameter, and a torsion spring (15) is provided between the inner adjustment sleeve (16) and the adjustment mandrel (13). The outer surface of the inner adjustment is provided with an inner tooth groove, the inner diameter of the inner tooth clutch gasket (19) is provided with inner teeth and is embedded in the inner tooth groove, the inner tooth clutch gasket (19) and the double outer tooth clutch gasket (18) are stacked on each other, the double outer tooth clutch gasket (18) is provided with outer teeth, the inner diameter of the adjustment sleeve (6) is provided with an outer tooth groove, and the outer teeth of the double outer tooth clutch gasket (18) are embedded in the outer tooth groove; The outer peripheral surface of the adjustment sleeve (6) is connected to the inner hole of the thrust seat (7) through a double thread.

2. The single-braking-axle clearance compensating brake according to claim 1, characterized in that: The upper bearing (14) is arranged in a mounting hole in the support seat (5) and cooperates with the adjustment core shaft (13). The support seat (5) has a boss at the bottom and the adjustment sleeve (6) has an inner hole. The bosses of the two are embedded in the inner holes and can rotate freely.

3. The single-braking-axle clearance compensating brake according to claim 1, characterized in that: The lower part of the adjustment mandrel (13) is sleeved on the adjustment sleeve (6), and a return spring (8) and a bearing are arranged between them. The upper and lower ends of the double external-tooth clutch gasket (18) and the internal-tooth clutch gasket (19) are respectively provided with a wear-resistant pad a (17) and a wear-resistant pad b. The upper part of the return spring (8) abuts against the wear-resistant pad b (20), and the lower part abuts against the lower bearing (10). A bearing support sleeve (9) is arranged between the adjustment sleeve (6) and the lower bearing (10), so that the adjustment sleeve (6) and the adjustment mandrel (13) are tightly fitted on the adjustment mandrel (13) through the bearing (10), so that the entire adjustment mechanism is integrated.

4. The single-braking-axle clearance compensating brake according to claim 1, characterized in that: A torsion spring (15) is provided between the adjusting mandrel (13) and the inner adjusting sleeve (16), so that the adjusting mandrel (13) and the inner adjusting sleeve (16) are tightly embraced to form a whole.

5. The single-brake-axle clearance compensating brake according to claim 2, characterized in that: The force amplification mechanism comprises a pressure arm (1) and a roller (2), a pressure arm (1) bushing (3) is provided between the pressure arm (1) and the roller (2), a semicircular bearing (4) is provided between the pressure arm (1) and the support seat (5), the contact arc surface of the pressure arm (1) on the roller (2) and semicircular bearing (4) sides is non-concentric, and the contact arc surface on the semicircular bearing (4) side is larger than the arc surface on the other side, limiting grooves are provided on both sides of the support seat (5) to ensure that the semicircular bearing (4) can only rotate on the support seat (5), a cylindrical pin is provided on the inner side of the pressure arm (1), and a notch is provided on the adjustment spindle (13), the cylindrical pin is inserted in the notch, and when the pressure arm (1) rotates, the adjustment spindle (13) is rotated by the cylindrical pin.

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