CN207777480U - Built-in zero drags hydraulic brake caliper - Google Patents

Abstract

The utility model discloses one kind built-in zero to drag hydraulic brake caliper, including brake caliper, the piston being installed in brake caliper hydraulic cylinder；Piston offers positioning screw hole in the middle part of the end face far from friction plate, step central shaft is provided in brake caliper hydraulic cylinder, step central shaft one end is spirally connected with positioning screw hole sealing, the other end is bolted with self-locking nut, it is set with hollow cylinder positioning sliding block on the minor diameter axis body of step central shaft, spring element is set on the axis body between self-locking nut and hollow cylinder positioning sliding block；Hollow cylinder positioning sliding block peripheral surface offers annular groove, it is provided with opening on its side wall, the harmomegathus ring of hatch frame is provided in annular groove, bending constitutes in-flanges into opening respectively at the both ends of harmomegathus ring, gap is offered respectively on two in-flanges, and two opening positions are provided with damper regulation mechanism.The utility model advantage is that eliminating existing brake caliper has the defect dragged, and reaching reduces fuel consumption, extends friction plate service life purpose.

Description

Built-in zero drags hydraulic brake caliper

Technical field

The utility model is related to brake device for car, and hydraulic brake caliper is dragged more particularly, to built-in zero.

Background technology

When vehicle braking, driver's brake pedal, master cylinder smaller volume, the brake fluid of extrusion is by the road from card Oilhole on pincers enters left chamber and piston is pushed to move to right, and the rectangular seal closely to match with piston also deforms upon therewith, The brake clearance set between friction plate and brake disc is eliminated, and then tightly clamps and makes vehicle with the brake disc of wheel coaxial rotating Wheel stalls and realizes vehicle braking.When brake release, master cylinder volume restores, and brake caliper rectangular seal deformation release pushes away Piston moves to left, and brake fluid is back to master cylinder, and friction plate releases the clamping to brake disc until restoring the brake cabin of setting Gap.

But influenced by factors such as the accuracy of manufacture, the deformation of brake caliper rectangular seal and vehicle service life, Piston reset stroke after brake release is not consistent, and the setting gap of friction plate and brake disc can not be every time reliably extensive Again to setting value, this results in vehicle incomplete in friction plate and braking disk detachment（Clamping residual）In the state of travel, drag （It is commonly called as dawdling）Occur and fuel consumption is caused to increase, while also shortening the service life of friction plate.

Invention content

The utility model aim is that providing one kind built-in zero drags hydraulic brake caliper.

To achieve the above object, the utility model takes following technical proposals：

Described in the utility model built-in zero drags hydraulic brake caliper, including the brake caliper being arranged on wheel shaft, The piston being installed in the brake caliper hydraulic cylinder；The piston offers positioning screw hole in the middle part of the end face far from friction plate, It is located on the left of piston in brake caliper hydraulic cylinder and is provided with step central shaft, one end of the step central shaft and the positioning spiral shell Hole sealing is spirally connected, and the other end of step central shaft is bolted with self-locking nut, and the small diameter shaft body of step central shaft is located at piston Left side is set with hollow cylinder positioning sliding block on the minor diameter axis body, and it is fixed with the hollow cylinder to be located at the self-locking nut It is set with spring element on axis body between the sliding block of position；Hollow cylinder positioning sliding block peripheral surface offers annular groove, hollow cylinder positioning Be provided with opening on slider side wall, be provided with the harmomegathus ring of hatch frame in the annular groove, the both ends of the harmomegathus ring respectively to Bending constitutes in-flanges in the opening, offers gap respectively on two in-flanges, is set positioned at two opening positions It is equipped with damper regulation mechanism.

The damper regulation mechanism includes：The nut being welded in a gap, and it is welded on another gap Interior casing and gap passes through the bolt of described sleeve pipe, the bolt lower end and the nut bolt, is located at casing and spiral shell It is welded with location nut on bolt between mother.

After the utility model is advantageously ensured that each brake release, brake clearance is restored to design point, to disappear Unless friction plate remains the clamping of brake disc under on-position, avoid driving and drag, saves fuel oil.And this advantage is to build It stands on action logic relationship support, navigating to stroke return all from retinue is realized under associated power effect（Such as：Retinue Positioning is realized under hydraulic actuating force effect, and it is under the elastic force effect of elastic force gasket to determine stroke return）, have it is mandatory, It is enough to exclude the interference that existing brake caliper is met with by rectangular seal deformation release return.Existing brake caliper is eliminated to exist The defect dragged, reaching reduces fuel consumption, extends friction plate service life purpose.

Description of the drawings

Fig. 1 is the structural schematic diagram of the utility model.

Fig. 2 is the A-A profile structure diagram of Fig. 1.

Fig. 3 is the structural schematic diagram of damper regulation mechanism described in the utility model.

Fig. 4 is the structural schematic diagram of hollow cylinder positioning sliding block described in the utility model.

Fig. 5 is the left view structural representation of Fig. 4.

Specific implementation mode

As shown in Figs. 1-5, described in the utility model built-in zero hydraulic brake caliper is dragged, including be arranged on wheel shaft Brake caliper, the piston 1 being installed in brake caliper hydraulic cylinder；Piston 1 offers positioning in the middle part of the end face far from friction plate 2 Screw hole, interior 1 left side of piston that is located at of brake caliper hydraulic cylinder are provided with step central shaft 3, right end and the positioning spiral shell of step central shaft 3 Hole sealing is spirally connected, and the left end of step central shaft 3 is bolted with self-locking nut 4, and the small diameter shaft body of step central shaft 3 is located at piston 1 Left side, be set with hollow cylinder positioning sliding block 5 on minor diameter axis body, be located at self-locking nut 4 and hollow cylinder positioning sliding block 5 it Between axis body on be set with elastic force gasket 6；5 peripheral surface of hollow cylinder positioning sliding block offers annular groove 7, hollow cylinder positioning sliding block It is provided with opening 8 on 5 side walls, is provided with the harmomegathus ring 9 of hatch frame in annular groove 7, the both ends of harmomegathus ring 9 are respectively into opening 8 Bending constitutes in-flanges 10,11, and gap 12,13 is offered respectively on two in-flanges 10,11, is located at two gap 12,13 It is provided with damper regulation mechanism.

The damper regulation mechanism includes：The nut 14 being welded in a gap 13, and be welded in another gap 12 Casing 15 and gap pass through the bolt 16 of casing 15,16 lower end of bolt and 14 bolt of nut are located at casing 15 and nut It is welded with location nut 17 on bolt 16 between 14.

Utility model works principle is summarized as follows：

When braking, hollow cylinder positioning sliding block 5, elastic force gasket, the harmomegathus ring 9 in annular groove 7 and damper regulation mechanism and work The return benchmark and stroke of 1 retinue of plug and preset piston 1, piston 1 complies with new positioning datum by preset after brake fluid pressure releases Stroke return eliminate friction plate 2 under driving states and the clamping of brake disc 18 remained so that it is guaranteed that brake clearance is normal.

Hollow cylinder positioning sliding block 5, elastic force gasket, the composition of harmomegathus ring 9 in annular groove 7 determine stroke return mechanism；In step Mandrel 3 and the screw hole of 1 left side of piston are connected, and 5 right side of hollow cylinder positioning sliding block can be pasted with 1 left side of piston after being connected It closes or axially away from the maximum distance left is the brake clearance of setting；By the effect of self-locking nut 4 and elastic force gasket 6, The right side of hollow cylinder positioning sliding block 5 is always at fit-state, the braking of setting with the left side of piston 1 when non-brake Also it always expresses in 5 left side of hollow cylinder positioning sliding block in gap.

The operating principle of damper regulation mechanism, that is, detent mechanism of accompanying is as follows：

The movement of harmomegathus ring 9 in the axial direction built in annular groove 7 can only be synchronous with hollow cylinder positioning sliding block 5, but in radial direction On can expand or shrink, as expansion can with tensioner on the cylinder wall of clamp, to make hollow cylinder positioning sliding block 5 obtain one It is a to move damping along oil cylinder axial direction；Such as shrinking can tighten in 7 bottom surface of annular groove.

9 both ends of harmomegathus ring respectively have a bending section in-flanges 10,11, in-flanges 10,11 ends respectively to offer gap 12,13, Casing 15 is welded in gap 12,13 are welded with nut 14 in gap, and adjusting bolt 16 passes through 15 nut 14 of casing is equipped to be formed Axial floating clamping to 15 upper and lower end face of casing, 16 lower end of bolt screw in nut 14, realize that harmomegathus 9 diameters of ring are adjustable then, I.e.：

9 diameter of harmomegathus ring is turned down：16 nut 14 of left-hand bolt moves up（Namely nut 14 and 15 Distance Shortened of casing）, harmomegathus 9 diameter of ring reduces, until tightening in 7 bottom surface of annular groove, this state is for supporting clamp total coating process to implement, i.e., hollow cylinder positions Sliding block 5 is with piston 1 in coaxial synchronous posture indentation brake caliper hydraulic cylinder.

9 diameter of harmomegathus ring tunes up：16 nut 14 of right-hand bolt moves down（Namely nut 14 and casing 15 are apart from increasing）, harmomegathus Ring 9 is diametrically expanded, until being close to the brake caliper hydraulic pressure inside wall of cylinder, forms attached wall friction damping, the attached wall of formation then Hydraulic coupling is to the motivator of piston 1 when frictional damping is much smaller than braking in the axial direction, and the permanent elastic force for being more than elastic force gasket 6, until This, mechanism has retinue positioning function.

When braking starts, piston 1 is actuated to move to right while step central shaft 3 being pulled to move to right to brake clearance by hydraulic coupling and be reserved It is completely transferred to 5 right side of hollow cylinder positioning sliding block, friction plate 2 is realized brake disc 18 and is clamped；As braking continues, work as friction When piece 2 and the abrasion of brake disc 18 occur, piston 1 continues to move to right compensation, step central shaft 3 and hollow cylinder positioning sliding block 5 Synchronizing moving follows up, and attached wall friction damping is much smaller than brake fluid pressure to the motivator of piston 1, and rise lock ring 9 and brake caliper liquid Cylinder pressure inner wall Relative sliding completes the retinue positioning of this braking then.

When brake release, elastic force gasket 6 discharges elastic force, pulls piston 1 to move to left until the reserved recovery of brake clearance, attached wall rub The permanent elastic force for being more than elastic force gasket 6 of damping is wiped, piston 1, which completes, determines stroke return.

Claims (2)

1. one kind built-in zero drags hydraulic brake caliper, including the brake caliper being arranged on wheel shaft, it is installed on the braking Piston in clamp hydraulic cylinder；It is characterized in that：The piston offers positioning screw hole in the middle part of the end face far from friction plate, brakes It is located in clamp hydraulic cylinder on the left of piston and is provided with step central shaft, one end of the step central shaft and the positioning screw hole is close Envelope is spirally connected, and the other end of step central shaft is bolted with self-locking nut, and the small diameter shaft body of step central shaft is located at the left side of piston, It is set with hollow cylinder positioning sliding block on the minor diameter axis body, is located at the self-locking nut and the hollow cylinder positioning sliding block Between axis body on be set with spring element；Hollow cylinder positioning sliding block peripheral surface offers annular groove, hollow cylinder positioning sliding block side It is provided with opening on wall, the harmomegathus ring of hatch frame is provided in the annular groove, the both ends of the harmomegathus ring are opened to described respectively Bending constitutes in-flanges in mouthful, offers gap respectively on two in-flanges, two opening positions are provided with resistance Buddhist nun's regulating mechanism.

2. according to claim 1 built-in zero drags hydraulic brake caliper, it is characterised in that：The damper regulation mechanism Including：The nut being welded in a gap, and the casing being welded in another gap and gap are across described The bolt of casing, the bolt lower end and the nut bolt are welded with positioning on the bolt between casing and nut Nut.