CN206754242U - A kind of eccentric shaft type wet multi-disc brake - Google Patents
A kind of eccentric shaft type wet multi-disc brake Download PDFInfo
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- CN206754242U CN206754242U CN201720327171.4U CN201720327171U CN206754242U CN 206754242 U CN206754242 U CN 206754242U CN 201720327171 U CN201720327171 U CN 201720327171U CN 206754242 U CN206754242 U CN 206754242U
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- brake
- piston rod
- braking
- parking braking
- eccentric shaft
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Abstract
The utility model discloses a kind of eccentric shaft type wet multi-disc brake, including wet brake and the hydraulic cylinder and transmission mechanism that are arranged on outside wet brake, the hydraulic cylinder include parking and braking mechanism and service brake mechanism；The transmission mechanism includes universal joint, connecting rod, adjustment arm and eccentric shaft, and the eccentricity ratio of the turning arm and eccentric shaft is i.The utility model is simple in construction, reasonable in design, by the way that hydraulic cylinder is arranged on outside wet brake, thoroughly solve the problems, such as to cause built-in piston seal aging, oil leak due to high temperature caused by continuous braking, the failure of wet brake is reduced, while three travelling brake, parking braking and brake hard functions can be realized, substantially reduces hydraulic system pressure or brake pedal power again, using easy to operate, practical, using effect is good, is easy to promote the use of.
Description
Technical field
The utility model belongs to technical field of engineering machinery, and in particular to a kind of eccentric shaft type wet multi-disc brake.
Background technology
Automotive brake is one of most important part of automobile, and its braking ability directly influences the peace of running car
Quan Xing, brake are to make car deceleration as desired or stopped in most short distance, are broadly divided into two kinds of drum-type and disc type.Drum
Although formula brake car cost is low, dust-proof, its size is big, quality weight, not easy heat radiation, wet brake good heat dissipation, and
Insensitivity is good, and size and weight are small.Multi-disk wet brake in wet brake is that a kind of friction plate is operated in immersion oil
Wet brake in enclosed environment, it has, and braking moment is big, service life is long, anti-ageing moves back and contamination resistance is strong, exempts to tie up
The advantages that repairing, therefore using increasingly extensive in the brakes of engineering truck.
But existing wet multi-disc brake is complicated, although braking function can be realized, many problems be present,
Reliability is relatively low, with high costs, hinders promoting the use of for wet multi-disc brake.Such as Application No. 201520762901.4
Chinese patent discloses a kind of hydraulic pressure return multi-disk wet brake, and it is wet that its brake piston and sealing device are arranged in brake
In formula arrester shell body, brake oil hydraulic chamber is provided with brake cylinder body, is frequently braked in braking procedure, cause to brake
Device temperature is too high, causes brake oil liquid temperature to spend high easily gasification, vapour lock is produced in brake pipe, extends brake reaction time very
To braking moment is reduced, braking safety is had a strong impact on, secondly the too high sealing ring that can cause brake piston of temperature fails, and loses
Sealing function causes brake fluid to leak, and brake-pipe pressure is lost in, and then causes brake fade.Therefore, one kind is nowadays lacked
Wet multi-disc brake apparatus simple in construction, cost is low, reasonable in design, the utility model be one kind can realize travelling brake,
The wet multi-disc brake of three functions of parking braking and brake hard, by the way that brake piston and brake oil sap cavity body are set
Outside brake, solve wet brake parts and the problems such as brake oil liquid temperature spends high, sealing difference, so as to improve
The functional reliability of brake, convenient later maintenance, ensure that the safe for operation of vehicle.The present apparatus can be applicable completely simultaneously
The braking control system that automobile originally has, is greatly lowered installation cost.
The content of the invention
Technical problem to be solved in the utility model is to be directed to above-mentioned deficiency of the prior art, there is provided a kind of eccentric
Shaft type wet multi-disc brake, its is simple in construction, reasonable in design, by the way that hydraulic cylinder is arranged on outside wet brake, thoroughly
Solve the problems, such as to cause built-in piston seal aging, oil leak due to high temperature caused by continuous braking, reduce wet braking
The failure of device, while three travelling brake, parking braking and brake hard functions can be realized, hydraulic system is substantially reduced again
Pressure or brake pedal power, use is easy to operate, practical, and using effect is good, is easy to promote the use of.
In order to solve the above technical problems, the technical solution adopted in the utility model is：A kind of eccentric shaft type wet multi-disc system
Dynamic device, it is characterised in that：Including wet brake and the hydraulic cylinder and transmission mechanism that are arranged on outside wet brake, the liquid
Cylinder pressure includes parking and braking mechanism and service brake mechanism, and the parking and braking mechanism includes parking braking cylinder body and be arranged on to stay
Parking braking piston rod and disc spring group in car brake cylinder casing, the parking braking piston rod are hollow structure inside, the dish
One end of spring group is contacted with parking braking cylinder body phase, and the other end of the disc spring group is enclosed in parking braking piston rod, the row
Car arrestment mechanism includes service brake cylinder body and the setting that service brake piston rod, bottom and parking braking cylinder body openend coordinate
Piston rod return spring in driving brake cylinder casing, the service brake cylinder body openend is provided with service brake cylinder cap, institute
State and the first driving brake piston rod through-hole be provided with the bottom of parking braking cylinder body and the piston head of parking braking piston rod,
The bottom of the service brake cylinder body is provided with the second service brake piston rod through-hole, the piston shaft of the service brake piston rod
Parking braking cylinder body is stretched out through the described first driving brake piston rod through-hole, the piston head of the service brake piston rod passes through
Second service brake piston rod through-hole is in contact with piston rod return spring, the service brake piston rod and parking braking piston
Bar is fixedly connected, the side wall of the piston head of the parking braking piston rod, the bottom of service brake cylinder body and parking braking cylinder body
Parking braking liquid room is formed, the parking braking liquid room offers parking braking oilhole, institute in the side wall of parking braking cylinder body
The side wall for stating the piston head of service brake piston rod, the bottom of service brake cylinder body and service brake cylinder body forms service brake liquid
Room, the service brake liquid room offer service brake oilhole in the side wall of driving brake cylinder casing；The transmission mechanism includes
Universal joint, the connecting rod being connected with cardan drive, the adjustment arm being connected with link transmission and the eccentric shaft with adjusting arm key connection,
The piston shaft that the universal joint stretches out parking braking cylinder body with service brake piston rod is fixedly connected, the turning arm and eccentric shaft
Eccentricity ratio be i, the angle of the turning arm and connecting rod is α ° of angle, and the angle of the connecting rod and universal joint is angle beta °, it is described partially
The heart meets i × cos α × sin β than i, α ° of angle and angle beta °>1.
A kind of above-mentioned eccentric shaft type wet multi-disc brake, it is characterised in that：The wet brake includes wet type system
Dynamic device housing and the wet brake cover plate being detachably connected with wet brake housing, the wet brake housing is interior to be set
There are braking platen and friction pair, rotating disk is provided with the wet brake cover plate, is set on the wet brake cover plate
There is the eccentric shaft through-hole passed through for eccentric shaft, the rotating disk is fixedly connected with eccentric shaft, and the side of the braking platen is set
There are multiple clamp screw wedge-shaped slots, ball is provided with the clamp screw wedge-shaped slot, being provided with ball in the rotating disk leads to
Hole, the opposite side of the braking platen are connected with braking platen return spring, the braking platen return spring and wet braking
Device housing is in contact, and the friction pair includes static friction piece and movable friction plate, and the static friction piece connects with wet brake housing
Connect, the movable friction plate is fixedly connected with power transmission shaft.
A kind of above-mentioned eccentric shaft type wet multi-disc brake, it is characterised in that：Also include multiple brake clearance adjustment parts,
One end of the brake clearance adjustment part is fixedly connected with rotating disk, the other end and braking platen of the brake clearance adjustment part
It is flexibly connected.
A kind of above-mentioned eccentric shaft type wet multi-disc brake, it is characterised in that：Set on the wet brake cover plate
There are multiple, direction of rotation identical cover plate spiral wedge-shaped slots relative with clamp screw wedge shape groove location.
A kind of above-mentioned eccentric shaft type wet multi-disc brake, it is characterised in that：Including hydraulic cylinder support frame and it is enclosed on partially
Pivot flange in mandrel, the hydraulic cylinder support frame include the support set that is enclosed on eccentric shaft and are fixedly connected with support set
Supporting plate, the supporting plate are fixedly connected with the cylinder plate of parking braking cylinder body, and one end and the hydraulic cylinder of the pivot flange support
What frame was fixedly connected, the other end of the pivot flange is fixedly connected with wet brake cover plate.
A kind of above-mentioned eccentric shaft type wet multi-disc brake, it is characterised in that：Also include being arranged on service brake cylinder body
Outside unblock screw and locking nut, the motor vehicle braking system, which covers, to be provided with for unblock screwing through hole, the unblock screw
The inner through unblock screwing through hole be against on the piston head of parking braking piston rod, it is described unblock screw outer end and locking screw
Mother is fastenedly connected.
A kind of above-mentioned eccentric shaft type wet multi-disc brake, it is characterised in that：In the side wall of the parking braking cylinder body
Venthole is provided with, cooling-oil outlet and exhaust bolt are provided with the wet brake housing.
A kind of above-mentioned eccentric shaft type wet multi-disc brake, it is characterised in that：The brake clearance adjustment part is adjustment
Bolt.
The utility model has advantages below compared with prior art：
1st, it is of the present utility model simple in construction, it is reasonable in design, realize and using easy to operate.
2nd, the utility model does not have wet brake built-in piston by the way that hydraulic cylinder is arranged on outside wet brake,
Avoid brake piston sealing ring temperature it is too high cause aging cause seal failure, brake oil liquid temperature spend height in brake piping
Gasification produces vapour lock and sealing ring loses sealing function and causes oil leak and then cause brake fade, so as to improve wet type system
The functional reliability of dynamic device, avoids the occurrence of security incident, convenient later maintenance, ensure that the safe for operation of vehicle；In addition,
Hydraulic cylinder is arranged on outside wet brake, when occur braking sealing failure when, without will be taken apart inside wet brake into
Row maintenance, it is only necessary to hydraulic cylinder is repaired, it is easy to operation, automotive service efficiency is not influenceed.
3. the utility model is eccentric shaft type structure, turning arm and angle α ° of the eccentric shaft than i, turning arm and connecting rod
Meet i × cos α × sin β with β ° of the angle of connecting rod and universal joint>1, the pulling force of service brake piston rod is made less than eccentric shaft
With thrust on the rotating pan, braking had both been realized, hydraulic system pressure or brake pedal power has been substantially reduced again, is easy to
Operation.
4th, the utility model is multiple functional, and travelling brake, parking braking and tight can be realized by the structure of hydraulic cylinder
Three functions of anxious braking, avoid some wet multi-disc brakes and be only capable of realizing service brake, function deficiency, it is necessary to give automobile again
The trouble of holding brake device is installed.
5th, the utility model is applicable the braking control system that automobile originally has, it is not necessary to automobile original structure is made significantly again
Change, be easily installed, reduce cost.
In summary, the utility model is simple in construction, reasonable in design, by the way that hydraulic cylinder is arranged on outside wet brake
Portion, thoroughly solve the problems, such as to cause built-in piston seal aging, oil leak due to high temperature caused by continuous braking, reduce wet
The failure of formula brake, while three travelling brake, parking braking and brake hard functions can be realized, liquid is substantially reduced again
System pressure or brake pedal power are pressed, use is easy to operate, practical, and using effect is good, is easy to promote the use of.
Below by drawings and examples, the technical solution of the utility model is described in further detail.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the scheme of installation of the utility model turning arm, connecting rod and universal joint.
Fig. 3 is the structural representation of the utility model hydraulic cylinder.
Fig. 4 is the structural representation of the utility model wet brake.
Fig. 5 is the scheme of installation of the utility model wet brake cover plate, ball and braking platen.
Fig. 6 is the structural representation of the utility model braking platen.
Fig. 7 is the structural representation of the utility model rotating disk.
Description of reference numerals:
1-wet brake housing；2-wet brake cover plate；3-cooling-oil outlet；
4-brake clearance adjustment part；5-exhaust bolt；6-pivot flange；
7-hydraulic cylinder support frame；8-turning arm；9-eccentric shaft；
10-connecting rod；11-universal joint；12-service brake piston rod；
13-parking braking cylinder body；13-1-parking braking oilhole；13-2-venthole；
14-service brake cylinder body；14-1-service brake oilhole；15-unblock screw；
16-locking nut；17-parking braking piston rod；18-disc spring group；
19-piston rod return spring；20-service brake cylinder cap；21-wheel hub；
22-bearing；23-power transmission shaft；24-sealing ring；
25-braking platen；26-friction pair；27-rotating disk；
28-adpting flange；29-splined shaft；30-clamp screw wedge-shaped slot；
31-cover plate spiral wedge-shaped slot；32-ball；
33-braking platen return spring；34-ball through hole.
Embodiment
As shown in Figure 1, Figure 2 and Figure 3, the utility model includes wet brake and the liquid being arranged on outside wet brake
Cylinder pressure and transmission mechanism, the hydraulic cylinder include parking and braking mechanism and service brake mechanism, and the parking and braking mechanism includes
Parking braking cylinder body 13 and the parking braking piston rod 17 being arranged in parking braking cylinder body 13 and disc spring group 18, the parking system
Piston bar 17 is hollow structure inside, and one end of the disc spring group 18 is in contact with parking braking cylinder body 13, the disc spring group
18 other end is enclosed in parking braking piston rod 17, the service brake mechanism include service brake piston rod 12, bottom with
The service brake cylinder body 14 that the openend of parking braking cylinder body 13 coordinates and the piston rod return being arranged in service brake cylinder body 14
Spring 19, the openend of service brake cylinder body 14 are provided with service brake cylinder cap 20, the bottom of the parking braking cylinder body 13
With the first driving brake piston rod through-hole, the service brake cylinder body 14 are provided with the piston head of parking braking piston rod 17
Bottom be provided with the second service brake piston rod through-hole, the piston shaft of the service brake piston rod 12 passes through the first row
Car brake piston rod through-hole stretches out parking braking cylinder body 13, and the piston head of the service brake piston rod 12 is made by the second driving
Piston rod through-hole is in contact with piston rod return spring 19, and the service brake piston rod 12 is solid with parking braking piston rod 17
Fixed connection, the side of the piston head of the parking braking piston rod 17, the bottom of service brake cylinder body 14 and parking braking cylinder body 13
Wall forms parking braking liquid room, and the parking braking liquid room offers parking braking oilhole in the side wall of parking braking cylinder body 13
13-1, the side wall of the piston head of the service brake piston rod 12, the bottom of service brake cylinder body 14 and service brake cylinder body 14
Service brake liquid room is formed, the service brake liquid room offers service brake oilhole in the side wall of driving brake cylinder casing 14
14-1；The transmission mechanism includes universal joint 11, the connecting rod 10 being connected with universal joint 11, the tune being connected with connecting rod 10
Whole arm 8 and the eccentric shaft 9 with adjusting the key connection of arm 8, the universal joint 11 stretch out parking braking cylinder with service brake piston rod 12
The piston shaft of body 13 is fixedly connected, and the eccentricity ratio of the turning arm 8 and eccentric shaft 9 is i, the turning arm 8 and connecting rod 10 folder
Angle is α ° of angle, and the angle of the connecting rod 10 and universal joint 11 is angle beta °, the eccentricity ratio i, α ° of angle and angle beta ° meet i × cos α ×
sinβ>1。
As shown in Fig. 1, Fig. 4, Fig. 5, Fig. 6 and Fig. 7, in the present embodiment, the wet brake includes wet brake shell
Body 1 and the wet brake cover plate 2 being detachably connected with wet brake housing 1, it is provided with the wet brake housing 1
Braking platen 25 and friction pair 26, rotating disk 27, the wet brake cover plate 2 are provided with the wet brake cover plate 2
On be provided with the eccentric shaft through-hole passed through for eccentric shaft 9, the rotating disk 27 is fixedly connected with eccentric shaft 9, the braking platen
25 side is provided with multiple clamp screw wedge-shaped slots 30, and ball 32, the rotation are provided with the clamp screw wedge-shaped slot 30
Ball through hole 34 is provided with rotating disk 27, the opposite side of the braking platen 25 is connected with braking platen return spring 33, described
Braking platen return spring 33 is in contact with wet brake housing 1, and the friction pair 26 includes static friction piece and movable friction plate,
The static friction piece is connected with wet brake housing 1, and the movable friction plate is fixedly connected with power transmission shaft 23.
As shown in figure 1, in the present embodiment, in addition to multiple brake clearance adjustment parts 4, the brake clearance adjustment part 4
One end is fixedly connected with rotating disk 27, and the other end of the brake clearance adjustment part 4 is flexibly connected with braking platen 25.
As shown in figure 5, in the present embodiment, multiple and clamp screw wedge-shaped slot is provided with the wet brake cover plate 2
30 positions are relative, direction of rotation identical cover plate spiral wedge-shaped slot 31.
As shown in figure 1, in the present embodiment, including hydraulic cylinder support frame 7 and the pivot flange 6 that is enclosed on eccentric shaft 9, it is described
Hydraulic cylinder support frame 7 includes the support set being enclosed on eccentric shaft 9 and the supporting plate being fixedly connected with support set, the supporting plate with
The cylinder plate of parking braking cylinder body 13 is fixedly connected, what one end of the pivot flange 6 was fixedly connected with hydraulic cylinder support frame 7, institute
The other end for stating pivot flange 6 is fixedly connected with wet brake cover plate 2.
As shown in figures 1 and 3, in the present embodiment, in addition to it is arranged on the unblock screw 15 outside service brake cylinder body 14
With locking nut 16, it is provided with the service brake cylinder cap 20 and is worn for unblock screwing through hole, the inner of the unblock screw 15
Cross unblock screwing through hole to be against on the piston head of parking braking piston rod 12, the outer end of the unblock screw 15 and locking nut 16
It is fastenedly connected.
As shown in figure 1, in the present embodiment, venthole 13-2 is provided with the side wall of the parking braking cylinder body 13, it is described
Cooling-oil outlet 3 and exhaust bolt 5 are provided with wet brake housing 1.
In the present embodiment, the brake clearance adjustment part 4 is adjustment bolt.
When it is implemented, bearing 22 is connected by power transmission shaft 23 with wheel hub 21, the inner side of wheel hub 21 is provided with wet braking
Device housing 1, braking platen 26 and static friction piece are connected with wet brake housing 1.Wet brake housing 1, wet brake
The axle housing of cover plate 2 and automobile axle forms sealing space, and filled with cooling oil, hydraulic cylinder has travelling brake, parking braking for inside
And three functions of brake hard.
When vehicle parking, disc spring group 18 is due to spring pressure by parking braking piston rod 17 to parking braking cylinder body
13 openend is promoted, and parking braking piston rod 17 is fixedly connected with service brake piston rod 12, therefore parking braking piston rod
17 promotion service brake piston rods 12 move right, compression piston bar return spring 19, while service brake piston rod 12 drives
Universal joint 11 moves to the openend of parking braking cylinder body 13, and universal joint 11 promotes connecting rod 10 to move, and connecting rod 10 drives adjustment arm 8
Rotate, adjustment arm 8 be connected with the spline of eccentric shaft 9, eccentric shaft 9 drive rotating disk 27 rotate, rotating disk 27 drive ball 32 towards
The shallow mouth opening position rotation of wedged spiral groove 30 and cover plate wedged spiral groove 31 is braked, so as to compress braking platen 26, braking pressure
Disk 26 connects with braking platen return spring 33, therefore braking platen return spring 33 is in compressive state, the band of braking platen 26
Sound friction plate moves towards the direction of movable friction plate, so that the static friction piece and movable friction plate of friction pair 25 compress, then
Make the movable friction plate stop motion of rotation, so as to realize parking braking.
When a vehicle is started, it is necessary to release parking braking, braking valve for vehicle is now unclamped, at parking braking oilhole 13-2
Into hydraulic oil, hydraulic oil is acted in parking braking liquid room, so as to promote parking braking piston 17 to overcome the pressure of disc spring group 18,
Moved to the cylinder bottom direction of parking braking cylinder body 13, parking braking piston rod 17 is to service brake piston 12 to parking braking cylinder body
The thrust of 13 openend disappears, because piston rod return spring 19 is in confined state in parking braking, therefore when row
After car brake piston 12 is to the distress resolves of piston rod return spring 19, the restoring force of piston rod return spring 19 can promote driving
Brake piston bar 12 sets back, and service brake piston 12 drives universal joint 11 to be moved to the openend away from parking braking cylinder body 13
Dynamic, universal joint 11 promotes connecting rod 10 to move, and connecting rod 10 drives adjustment arm 8 to rotate, adjustment arm 8 and the key connection of eccentric shaft 9, eccentric shaft
9 drive rotating disks 27 rotate, and rotating disk 27 drives ball 32 towards braking wedged spiral groove 30 and cover plate wedged spiral groove 31
Deep mouth opening position rotation, so as to take-off the brake platen 26, pressed because braking platen return spring 33 is in parking braking
Contracting state, therefore after distress resolves of the braking platen 26 to braking platen return spring 33, braking platen return spring 33
Restoring force can promote braking platen 26 to retract original position, and braking platen 26 drives static friction piece to be transported away from the direction of movable friction plate
It is dynamic, so that static friction piece and the movable friction plate separation of friction pair 25, automobile release parking braking, start to start.
When vehicle needs braking in the process of moving, driver's brake pedal, enter from service brake oilhole 14-1
Enter hydraulic oil, hydraulic oil is acted in service brake liquid room, and hydraulic oil promotes the piston head of service brake piston rod 12 to driving
The openend movement of brake cylinder casing 14, the compression piston bar return spring 19 of service brake piston rod 12, therefore piston rod return bullet
Spring 19 is in compressive state in the process of moving, and service brake piston rod 12 drives the opening to parking braking cylinder body 13 of universal joint 11
The movement of mouth end, universal joint 11 promote connecting rod 10 to move, and connecting rod 10 drives adjustment arm 8 to rotate, and adjusts arm 8 and the key connection of eccentric shaft 9,
Eccentric shaft 9 drives rotating disk 27 to rotate, and rotating disk 27 drives ball 32 towards braking wedged spiral groove 30 and cover plate tapered helical
The shallow mouth opening position rotation of groove 31, so as to compress braking platen 26, braking platen 26 is connected with braking platen return spring 33,
Therefore braking platen return spring 33 is in compressive state, and braking platen 26 drives static friction piece to be transported towards the direction of movable friction plate
It is dynamic, so that the static friction piece and movable friction plate of friction pair 25 compress, then make the movable friction plate stop motion of rotation, so as to real
Existing service brake.
When in vehicle traveling process, parking braking liquid room once leaks decompression, it is necessary to which brake hard, hydraulic oil will be from parkings
Oilhole 13-2 leakages are braked, hydraulic oil reduces to the thrust of the piston head of parking braking piston 17, and disc spring group 18 will promote parking system
Piston 17 moves to the openend of parking braking cylinder body 13, so as to promote service brake piston rod 12 to service brake cylinder body 14
Openend movement, service brake piston rod 12 drive openend from universal joint 11 to parking braking cylinder body 13 move, universal joint
11 promotion connecting rods 10 are moved, and connecting rod 10 drives adjustment arm 8 to rotate, and adjustment arm 8 is connected with the spline of eccentric shaft 9, and eccentric shaft 9 drives rotation
Rotating disk 27 rotates, and rotating disk 27 drives ball 32 towards the shallow mouth position of braking wedged spiral groove 30 and cover plate wedged spiral groove 31
Place's rotation, so as to compress braking platen 26, braking platen 26 drives static friction piece to be moved towards the direction of movable friction plate, so that
The static friction piece and movable friction plate of friction pair 25 compress, and then make the movable friction plate stop motion of rotation, realize brake hard work(
Energy.
Work as engine failure, it is impossible to when providing hydraulic oil to parking braking liquid room, parking braking function can not be released and led
When cause can not drive a vehicle, retraction nut 16 can be unclamped, mechanical release screw 15 is inwardly tightened, mechanical release screw 15 overcomes dish
The elastic force of spring group 18, parking braking piston rod 17 is promoted to be moved to the cylinder bottom direction of parking braking cylinder body 13, parking braking piston
Bar 17 drives service brake piston 12 to be moved to the cylinder bottom direction of parking braking cylinder body 13, so as to take-off the brake platen 26, makes to rub
Static friction piece and the movable friction plate separation of pair 25 are wiped, reaches the purpose for releasing parking braking.
Due to the pulling force of service brake piston rod 12P is that eccentric shaft 9 is acted in rotating disk 27
Thrust, it is desirable, therefore, to assure that turning arm 8 and the eccentricity ratio i of eccentric shaft 9, the angle α ° of turning arm 8 and connecting rod 10 and connecting rod 10 with
β ° of the angle of universal joint 11 meets i × cos α × sin β>1, you can realize F<P, braking was both realized, has substantially reduced hydraulic pressure system again
Unite pressure or brake pedal power, in the present embodiment, take α °=17 °, β °=90 °, i=7.
By setting cover plate spiral wedge-shaped slot 31 on wet brake cover plate 2, braking spiral shell is set in braking platen 25
Wedge-shaped slot 30 is revolved, ball 32 is placed in cover plate spiral wedge-shaped slot by the ball through hole 34 in rotating disk 27, a part for ball 32
In 31, another part of ball 32 is placed in clamp screw wedge-shaped slot 30, by the setting of double-wedge groove, adds ball 32
Move spacing, good braking effect.
After use after a while, because movable friction plate and static friction sector-meeting produce wear extent, cause between friction plate
Brake clearance can be more than initial value, during braking, due to needing to overcome the brake clearance of increase, therefore brake reaction time increases
It is long, braking distance is extended, influences parking safety.Therefore brake clearance adjustment part 4 is set, in the present embodiment, brake clearance is adjusted
One integral piece 4 is adjustment bolt, when brake clearance increases, rotates adjustment bolt, the spacing of adjustment braking platen 25 and rotating disk 27
From, play a part of brake clearance between regulation friction plate, so as to shorten brake reaction time, improve braking reliability, use
Effect is good.
Because the part in hydraulic cylinder and wet brake will move, in order to keep unobstructed in moving process, in
Venthole 13-2 is set on car brake cylinder casing 13, exhaust bolt 5 is set on wet brake housing 1.
It is described above, only it is embodiment of the present utility model, not the utility model is imposed any restrictions, it is every according to this
Any simple modification, change and the equivalent structure change that utility model technical spirit is made to above example, still fall within
In the protection domain of technical solutions of the utility model.
Claims (8)
- A kind of 1. eccentric shaft type wet multi-disc brake, it is characterised in that：Including wet brake and it is arranged on wet brake Outside hydraulic cylinder and transmission mechanism, the hydraulic cylinder include parking and braking mechanism and service brake mechanism, the parking braking Mechanism includes parking braking cylinder body (13) and the parking braking piston rod (17) and disc spring that are arranged in parking braking cylinder body (13) Group (18), the parking braking piston rod (17) are hollow structure inside, one end of the disc spring group (18) and parking braking cylinder Body (13) is in contact, and the other end of the disc spring group (18) is enclosed in parking braking piston rod (17), the service brake mechanism Including service brake piston rod (12), bottom and parking braking cylinder body (13) openend coordinate service brake cylinder body (14) and set The piston rod return spring (19) in driving brake cylinder casing (14) is put, service brake cylinder body (14) openend is provided with row It is respectively provided with car brake cylinder head (20), the bottom of the parking braking cylinder body (13) and the piston head of parking braking piston rod (17) There is the first driving brake piston rod through-hole, the bottom of the service brake cylinder body (14) is provided with the second service brake piston rod and led to Hole, the piston shaft of the service brake piston rod (12) stretch out parking braking cylinder through the described first driving brake piston rod through-hole Body (13), the piston head of the service brake piston rod (12) pass through the second service brake piston rod through-hole and piston rod return bullet Spring (19) is in contact, and the service brake piston rod (12) is fixedly connected with parking braking piston rod (17), the parking braking The side wall of the piston head of piston rod (17), the bottom of service brake cylinder body (14) and parking braking cylinder body (13) forms parking braking Liquid room, the parking braking liquid room offers parking braking oilhole (13-1) in the side wall of parking braking cylinder body (13), described The side wall of the piston head of service brake piston rod (12), the bottom of service brake cylinder body (14) and service brake cylinder body (14) is formed Service brake liquid room, the service brake liquid room offer service brake oilhole (14- in the side wall of driving brake cylinder casing (14) 1)；The transmission mechanism includes universal joint (11), is driven with the connecting rod (10) of universal joint (11) drive connection, with connecting rod (10) The adjustment arm (8) of connection and the eccentric shaft (9) with adjusting arm (8) key connection, the universal joint (11) and service brake piston rod (12) piston shaft for stretching out parking braking cylinder body (13) is fixedly connected, and the turning arm (8) and the eccentricity ratio of eccentric shaft (9) are i, The turning arm (8) and the angle of connecting rod (10) are α ° of angle, and the connecting rod (10) and the angle of universal joint (11) are angle beta °, described Eccentricity ratio i, α ° of angle and angle beta ° meet i × cos α × sin β>1.
- 2. according to a kind of eccentric shaft type wet multi-disc brake described in claim 1, it is characterised in that：The wet brake It is described including wet brake housing (1) and the wet brake cover plate (2) being detachably connected with wet brake housing (1) Braking platen (25) and friction pair (26) are provided with wet brake housing (1), is set in the wet brake cover plate (2) There is rotating disk (27), the eccentric shaft through-hole passed through for eccentric shaft (9), the rotation are provided with the wet brake cover plate (2) Rotating disk (27) is fixedly connected with eccentric shaft (9), and the side of the braking platen (25) is provided with multiple clamp screw wedge-shaped slots (30) ball (32), is provided with the clamp screw wedge-shaped slot (30), ball through hole is provided with the rotating disk (27) (34), the opposite side of the braking platen (25) is connected with braking platen return spring (33), the braking platen return spring (33) it is in contact with wet brake housing (1), the friction pair (26) includes static friction piece and movable friction plate, the static friction Piece is connected with wet brake housing (1), and the movable friction plate is fixedly connected with power transmission shaft (23).
- 3. according to a kind of eccentric shaft type wet multi-disc brake described in claim 1, it is characterised in that：Also include multiple brakings Gap adjustment part (4), one end of the brake clearance adjustment part (4) are fixedly connected with rotating disk (27), and the brake clearance is adjusted The other end of one integral piece (4) is flexibly connected with braking platen (25).
- 4. according to a kind of eccentric shaft type wet multi-disc brake described in claim 2, it is characterised in that：The wet brake Multiple, direction of rotation identical cover plate spiral wedge-shaped slots relative with clamp screw wedge-shaped slot (30) position are provided with cover plate (2) (31)。
- 5. according to a kind of eccentric shaft type wet multi-disc brake described in claim 1, it is characterised in that：Supported including hydraulic cylinder Frame (7) and the pivot flange (6) being enclosed on eccentric shaft (9), the hydraulic cylinder support frame (7) include being enclosed on eccentric shaft (9) Support set and the supporting plate being fixedly connected with support set, the supporting plate are fixedly connected with the cylinder plate of parking braking cylinder body (13), What one end of the pivot flange (6) was fixedly connected with hydraulic cylinder support frame (7), the other end of the pivot flange (6) with it is wet Formula brake cover plate (2) is fixedly connected.
- 6. according to a kind of eccentric shaft type wet multi-disc brake described in claim 1, it is characterised in that：Also it is expert at including setting Car brake cylinder casing (14) outside unblock screw (15) and locking nut (16), confession is provided with the service brake cylinder cap (20) Screwing through hole is unlocked, the inner of the unblock screw (15) is against the work of parking braking piston rod (12) through unblock screwing through hole On chock plug, the outer end of the unblock screw (15) is fastenedly connected with locking nut (16).
- 7. according to a kind of eccentric shaft type wet multi-disc brake described in claim 1, it is characterised in that：The parking braking cylinder Venthole (13-2) is provided with the side wall of body (13), be provided with the wet brake housing (1) cooling-oil outlet (3) and Exhaust bolt (5).
- 8. according to a kind of eccentric shaft type wet multi-disc brake described in claim 4, it is characterised in that：The brake clearance is adjusted One integral piece (4) is adjustment bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720327171.4U CN206754242U (en) | 2017-03-30 | 2017-03-30 | A kind of eccentric shaft type wet multi-disc brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720327171.4U CN206754242U (en) | 2017-03-30 | 2017-03-30 | A kind of eccentric shaft type wet multi-disc brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206754242U true CN206754242U (en) | 2017-12-15 |
Family
ID=60610910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720327171.4U Withdrawn - After Issue CN206754242U (en) | 2017-03-30 | 2017-03-30 | A kind of eccentric shaft type wet multi-disc brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206754242U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704420A (en) * | 2017-03-30 | 2017-05-24 | 西安科技大学 | Eccentric shaft type wet multi-disc brake |
| CN108131405A (en) * | 2017-12-22 | 2018-06-08 | 西安科技大学 | A kind of energy regenerating wet multi-disc brake |
| CN109707766A (en) * | 2019-03-06 | 2019-05-03 | 莱州亚通重型装备有限公司 | A kind of wet brake preventing venthole bleed |
| CN109877617A (en) * | 2019-03-29 | 2019-06-14 | 奥美森智能装备股份有限公司 | A kind of clamp die mechanism |
| CN112032225A (en) * | 2020-09-24 | 2020-12-04 | 吉林大学青岛汽车研究院 | Wet-type multi-disc brake with shifting fork force-increasing mechanism and using method thereof |
-
2017
- 2017-03-30 CN CN201720327171.4U patent/CN206754242U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704420A (en) * | 2017-03-30 | 2017-05-24 | 西安科技大学 | Eccentric shaft type wet multi-disc brake |
| CN106704420B (en) * | 2017-03-30 | 2018-08-03 | 西安科技大学 | A kind of eccentric shaft type wet multi-disc brake |
| CN108131405A (en) * | 2017-12-22 | 2018-06-08 | 西安科技大学 | A kind of energy regenerating wet multi-disc brake |
| CN108131405B (en) * | 2017-12-22 | 2019-05-24 | 西安科技大学 | A kind of energy regenerating wet multi-disc brake |
| CN109707766A (en) * | 2019-03-06 | 2019-05-03 | 莱州亚通重型装备有限公司 | A kind of wet brake preventing venthole bleed |
| CN109877617A (en) * | 2019-03-29 | 2019-06-14 | 奥美森智能装备股份有限公司 | A kind of clamp die mechanism |
| CN112032225A (en) * | 2020-09-24 | 2020-12-04 | 吉林大学青岛汽车研究院 | Wet-type multi-disc brake with shifting fork force-increasing mechanism and using method thereof |
| CN112032225B (en) * | 2020-09-24 | 2024-03-22 | 吉林大学青岛汽车研究院 | Wet type multi-disc brake with shifting fork force increasing mechanism and using method thereof |
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