CN209600479U - Electric servo brake equipment for motor vehicle - Google Patents
Electric servo brake equipment for motor vehicle Download PDFInfo
- Publication number
- CN209600479U CN209600479U CN201920091252.8U CN201920091252U CN209600479U CN 209600479 U CN209600479 U CN 209600479U CN 201920091252 U CN201920091252 U CN 201920091252U CN 209600479 U CN209600479 U CN 209600479U
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- casing
- gear
- push rod
- screw
- motor vehicle
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Abstract
The electric servo brake equipment for motor vehicle of the utility model, including casing, driving motor is provided on casing, driving gear is coaxially arranged on driving motor, the setting that driving gear relatively rotates is in casing, sprocket drive spindle is threadedly coupled in casing, gear shaft is equipped with idle pulley, idler bearing is arranged on gear shaft, the outer ring of idler bearing and the inner ring of idle pulley are interference fitted, it is equipped in casing for by the mounting structure of idler bearing and gear axis connection, driven gear is rotatably connected in casing, driving gear, idle pulley and driven gear successively engage, screw is rotatably connected in casing, the inner ring of screw and driven gear interference fit, screw rod is slidably connected in casing, screw is connect with wire rod thread, the side of screw rod is equipped with master cylinder.Original duplicate gear is replaced to reduce the structural complexity of entire braking equipment by the structure of the idle pulley feature simpler than the structure of duplicate gear using idle pulley.
Description
Technical field
The utility model relates to field of automobile brake, and in particular to the electric servo brake equipment for motor vehicle.
Background technique
Servo brake can satisfy under On-line Control dynamic model formula, power brake mode, failure mode difference operating condition
The torque of driving motor is converted into power-assisted by braking requirement, operating pressure needed for which generates braking for master cylinder.
The patent of publication number CN108860120A discloses a kind of electrical servo brake apparatus with multiple-working mode,
The electrical servo brake apparatus with multiple-working mode includes servo motor, duplicate gear and ball screw.Its duplex
Gear and ball screw linkage, servo motor realize that torque is transmitted and translates ball screw by engage with duplicate gear, rolling
Ballscrew provides brake pressure by translation.
Although the electrical servo brake apparatus is able to achieve braking effect, but mould of the duplicate gear due to that need to keep two gears
Number is identical, therefore structure is complicated for the processing of duplicate gear, and duplicate gear causes the braking as the linkage structure of servo motor
The limitation of the actual use of device.
Summary of the invention
In order to overcome the shortcomings in the prior art, the utility model proposes the electric servo brakes for motor vehicle to set
It is standby, the structural complexity of linkage structure in brake apparatus can be reduced, the generality of production and the utilization of brake apparatus is improved.
To achieve the goals above, the electric servo brake equipment for motor vehicle of the utility model, including machine
Shell is provided with driving motor on casing, and driving gear is coaxially arranged on driving motor, and the setting that driving gear relatively rotates exists
In casing, sprocket drive spindle is threadedly coupled in casing, gear shaft is equipped with idle pulley, is arranged with idler bearing, idler shaft on gear shaft
The inner ring of the outer ring and idle pulley held is interference fitted, and is equipped in casing for by the mounting structure of idler bearing and gear axis connection,
Driven gear is rotatably connected in casing, driving gear, idle pulley and driven gear successively engage, and silk is rotatably connected in casing
The inner ring of mother, screw and driven gear is interference fitted, and slidably connects screw rod in casing, screw is connect with wire rod thread, screw rod
Side be equipped with master cylinder.
Further, mounting structure includes the oblique shoulder being co-axially located on gear shaft, and compression is threaded on gear shaft
Nut, the two sides of idler bearing are contradicted with clamp nut and oblique shoulder respectively.
Further, screw rod is equipped with drag reduction structures, and drag reduction structures include screw rod connect with wire rod thread, screw rod outside according to
Secondary to be arranged with washer, stop nut and idler wheel, the end of screw rod is provided with annular element, is provided in casing and slides for annular element
U-type groove.
Further, it is provided with flat key slot on driven gear and screw, flat key slot is placed with flat key, coaxial on screw
It is provided with the shaft shoulder to flat key limit.
Further, screw rod hollow setting slidably connects big push rod in screw rod and is threadedly coupled with big push rod small
Push rod is equipped with ruggedized construction between the inner wall of big push rod and the outer wall of small push rod.
Further, ruggedized construction includes the reinforcing member being set on the outside of small push rod, and annular skewback is provided on reinforcing member,
Abaculus is provided on annular skewback, annular skewback contradicts between the outside of small push rod and the inside of big push rod, on small push rod
It is threaded with pre-load nut, pre-load nut is connect with reinforcing member.
Further, big push rod is stretched out in one end of reinforcing member, and the other end of reinforcing member is in big push rod, and abaculus is connected to
Reinforcing member is located at one end in big push rod, and reinforcing member is in the setting of one end outside big push rod restraining position ring block, is arranged on reinforcing member
Fastener, gap slot is provided on fastener, and fastener has elasticity.
Further, pallet is slidably connected along the inner wall of screw, mandril is provided on pallet, mandril and master cylinder connect
It connects, spring element is equipped between pallet and master cylinder.
Further, small push rod and pallet clearance fit.
Further, gear shaft is pierced by casing far from its one end being threadedly coupled with casing and is threaded with balance spiral shell
The shell of mother, balance nut and casing contradicts.
The utility model has the advantages that original duplicate gear is replaced using idle pulley, it is simpler than the structure of duplicate gear by the structure of idle pulley
Single feature, reduces the structural complexity of entire braking equipment.
Detailed description of the invention
With reference to the accompanying drawing the utility model is made further to describe and illustrate.
Fig. 1 is the structural schematic diagram of the present embodiment entirety；
Fig. 2 is the structural schematic diagram in order to highlight idler bearing；
Fig. 3 is the enlarged drawing in Fig. 2 at A；
Fig. 4 is the enlarged drawing in Fig. 2 at B；
Fig. 5 is the enlarged drawing in Fig. 2 at C；
Fig. 6 is the structural schematic diagram in order to highlight drag reduction structures；
Fig. 7 is the structural schematic diagram in order to highlight annular skewback and U-type groove.
Appended drawing reference: 1, casing；2, driving motor；3, driving gear；4, gear shaft；5, idle pulley；6, idler bearing；7, pacify
Assembling structure；71, oblique shoulder；711, section is contradicted；712, fixed section；72, clamp nut；8, driven gear；9, screw；10, screw rod；
12, drag reduction structures；121, screw rod；122, washer；123, idler wheel；124, annular element；125, U-type groove；126, stop nut；13,
Flat key slot；14, flat key；15, the shaft shoulder；16, big push rod；17, small push rod；18, ruggedized construction；181, reinforcing member；182, circular slanting
Block；183, abaculus；184, pre-load nut；19, stop collar；20, fastener；21, gap slot；22, pallet；23, mandril；24, spring
Element；25, balance nut.
Specific embodiment
Below in conjunction with attached drawing, by the description to preferred embodiments of the present invention, more clearly and completely explain
State the technical solution of the utility model.
Embodiment: as shown in Figure 1, being used for the electric servo brake equipment of motor vehicle, it is mainly used for solving to brake setting
The problem of processing technology complexity caused by standby middle duplicate gear, the electric servo brake equipment for being used for motor vehicle are mainly wrapped
Casing 1 is included, driving motor 2 is provided on casing 1, driving motor 2 is the power of one of mode of braking of the braking equipment
Source.Driving gear 3 is coaxially arranged on driving motor 2, which extend into casing 1 and rotates with driving motor 2,
Idle pulley 5 is also rotatably connected in casing 1, idle pulley 5 is engaged with driving gear 3 realizes power transmitting, and the shaft core position of idle pulley 5 is set
Sprocket drive spindle 4, what idle pulley 5 relatively rotated is arranged on the outer wall of gear shaft 4, and gear shaft 4 is connect with the inner thread of casing 1
And it is fixed, be equipped with idler bearing 6 (as shown in Figure 3) between idle pulley 5 and gear shaft 4, idler bearing 6 can reduce idle pulley 5 and
The frictional force of gear shaft 4, the outer ring of idler bearing 6 and idle pulley 5 are interference fitted, and idler bearing 6 and idle pulley 5 link, in gear shaft 4
It is equipped with mounting structure 7, which can realize the relative position of the inner ring of idler bearing 6 and the outer wall of gear shaft 4
It is fixed.
As shown in Figure 1, being rotatably connected to driven gear 8 in casing 1, driving gear 3, idle pulley 5 and driven gear 8 are successively
Engagement, the torsion of driving motor 2 are ultimately transferred to driven gear 8, screw 9, screw 9 and driven tooth are rotatably connected in casing 1
The inner ring interference fit of wheel 8, when driven gear 8 rotates, screw 9 and driven gear 8 are rotated synchronously, and are slidably connected in casing 1
Screw rod 10, screw rod 10 is interspersed in the axial location of screw 9 and screw rod 10 is threadedly coupled with screw 9, and the right side of screw rod 10 is equipped with system
Dynamic master cylinder, driven gear 8 drive the right cunning of screw rod 10 to generate brake force to master cylinder by screw 9.
As shown in Figure 2 and Figure 4, in order to increase the synchronism between screw 9 and driven gear 8, thus screw 9 and from
Flat key slot 13 is provided on moving gear 8, the flat key slot 13 on driven gear 8 does not run through the thickness of driven gear 8, i.e. flat key slot
13 are not pierced by from the right side of driven gear 8.Be placed with flat key 14 in flat key slot 13, flat key 14 simultaneously in driven gear 8 and
In flat key slot 13 on screw 9, the front-rear side walls of flat key 14 and flat key slot 13 are contradicted.When driven gear 8 drives screw 9 to rotate,
Since the front-rear side walls and flat key 14 of flat key slot 13 contradict, the rotation simultaneity of screw 9 Yu driven gear 8 ensure that.In addition, In
The shaft shoulder 15 is provided on screw 9, which is arranged in the left side of flat key 14.When screw 9 and driven gear 8 are installed, installation is first
First flat key 14 is placed into the flat key slot 13 of screw 9, driven gear 8 breaks away along the axis of screw 9 from the right side of screw 9 to the left
Dynamic, during driven gear 8 slides, the upside of flat key 14 slides into the flat key slot of driven gear 8 from the left side of driven gear 8
In 13.The effect of the shaft shoulder 15 is that the shaft shoulder 15 simultaneously limits the position of the upper end of flat key 14 and driven gear 8, driven tooth
It takes turns 8 inner rings and does not place the part of flat key 14 and connect by way of interference fit with 9 outer wall of screw.
As shown in Figures 2 and 3, aforementioned that idler bearing 6 is fixed on the mounting structure 7 on gear shaft 4 mainly including coaxial
Oblique shoulder 71 on 4 outer wall of gear shaft is set, oblique shoulder 71 is arranged in the right side of idler bearing 6, oblique shoulder 71 include be conical
It contradicts section 711 and the fixed section 712 contradicted on the right side of section is set, the diameter of fixed section 712 is greater than the diameter of idler bearing 6.
Clamp nut 72 is threaded on gear shaft 4, clamp nut 72 is in the left side of idler bearing 6, the two sides point of idler bearing 6
It is not contradicted with clamp nut 72 and oblique shoulder 71.When clamp nut 72 screws to the right and contradicts 6 inner ring of idler bearing, idler bearing
6 inner ring and the conflict section 711 of oblique shoulder 71 contradict, and since the conflict section 711 of cone limits, idler bearing 6 is along 4 axis of gear shaft
Position on line direction is fixed, and the outer wall of the inner wall of idler bearing 6 and gear shaft 4 can be interference fitted and realize that radial position is solid
It is fixed.Casing 1 is stretched out on the right side of aforesaid gears axis 4, and balance nut 25 is threaded on gear shaft 4, balance nut 25
Further gear shaft 4 is fixed in the position of radial direction, the outer wall of balance nut 25 and casing 1 contradicts.5 rotation process of idle pulley
In, since gear shaft 4 is connect with 1 inner thread of casing, the active force of idle pulley 5 can make what gear shaft 4 moved axially to the left to become
Gesture is contradicted by balance nut 25 and shell, achievees the purpose that further to limit gear shaft 4 in the axial direction.
As shown in figures 1 to 6, screw rod 10 is equipped with drag reduction structures 12, and drag reduction structures 12 are both for reducing the sliding of screw rod 10
Resistance, be also used for avoiding screw rod 10 with 9 common rotation of screw.Drag reduction structures 12 include the screw rod being threadedly coupled with screw rod 10
121, screw rod 121 is successively arranged with washer 122, stop nut 126 and idler wheel 123 outside, and idler wheel 123 can be around screw rod 121
Axis arbitrarily rotates, and the end of the one end of screw rod 121 far from washer 122 is provided with annular element 124, the section shape of annular element 124
Shape is annular, and the U-type groove 125 slided for annular element 124 is provided in casing 1, and two straight flanges of annular element 124 are respectively at U
The upper and lower sides of shape slot.
As shown in Figure 1, screw rod 10 is hollow setting, big push rod 16, spiral shell on big push rod 16 are slidably connected in screw rod 10
Line is connected with small push rod 17, slidably connects pallet 22 along the inner wall of screw 9, and small push rod 17 and 22 clearance fit of pallet can be to prevent
Only driver's maloperation is provided with mandril 23 on pallet 22, and mandril 23 is connect with master cylinder, pallet 22 and master cylinder it
Between be equipped with spring element 24, the left side of big push rod 16 connects pedal, and pedal, big push rod 16 and small push rod 17 are the braking equipment
Another mode of braking, small push rod 17 moves to right pallet 22, and pallet 22 makes master cylinder generate brake force by mandril 23.
As shown in Figure 2 and Figure 5, it is equipped with ruggedized construction 18 between the inner wall of big push rod 16 and the outer wall of small push rod 17, reinforces
Structure 18 is used to be further ensured that the connectivity robustness of big push rod 16 and small push rod 17.Ruggedized construction 18 includes being set in small push rod
The reinforcing member 181 in 17 outsides, reinforcing member 181 can be slided along the axis of small push rod 17, and reinforcing member 181 is partially in big push rod 16
In, another part is in big 16 outside of push rod.Annular skewback 182 is provided on reinforcing member 181, annular skewback 182 is in and pushes away greatly
In bar 16, the left side of annular skewback 182 is provided with abaculus 183, and abaculus 183 is for avoiding reinforcing member 181 from fully sliding out big push rod
In 16, annular skewback 182 is contradicted between the outside of small push rod 17 and the inside of big push rod 16, is threadedly coupled on small push rod 17
There is pre-load nut 184, pre-load nut 184 is connect with reinforcing member 181.Reinforcing member 181 along big push rod 16 axis to big push rod 16
Outer Slideslip when, annular skewback 182 limits the position of reinforcing member 181, annular skewback 182 inner wall with big push rod 16 simultaneously
And the outer wall of small push rod 17 compresses simultaneously, so that the relative position of annular skewback 182, big push rod 16 and small push rod 17 reaches
It is fixed.
As shown in figure 5, being in the setting of one end outside big push rod 16 restraining position ring block 19 in reinforcing member 181, covered on reinforcing member 181
Equipped with fastener 20, fastener 20 is between stop collar 19 and big push rod 16, and gap slot 21 is provided on fastener 20, gap slot 21
Width is less than the diameter of reinforcing member 181, and fastener 20 has elasticity, and fastener 20 is set on reinforcing member 181 by gap slot 21, lacks
The notch of mouth slot 21 first becomes larger and becomes smaller and be continuously on reinforcing member 181 by elasticity recovery again, and fastener 20 limits reinforcing member 181
Again it freely slides into big push rod 16.
Above-mentioned specific embodiment is only described preferred embodiments of the present invention, and not practical to this
Novel protection scope is defined.Under the premise of not departing from the utility model design conception and scope, this field
Those of ordinary skill is according to verbal description provided by the utility model, attached drawing to made by the technical solution of the utility model
Various modifications, substitution and improvement should belong to the protection category of the utility model.The protection scope of the utility model is wanted by right
Ask determining.
Claims (10)
1. being used for the electric servo brake equipment of motor vehicle, including casing (1), which is characterized in that set on the casing (1)
It is equipped with driving motor (2), is coaxially arranged with driving gear (3) on the driving motor (2), the driving gear (3) is opposite to be turned
Dynamic setting is threadedly coupled sprocket drive spindle (4) in the casing (1) in casing (1), and the gear shaft (4) is equipped with idle pulley
(5), it is arranged with idler bearing (6) on the gear shaft (4), the inner ring interference of the outer ring and idle pulley (5) of the idler bearing (6)
Cooperate, the mounting structure (7) for connecting idler bearing (6) and gear shaft (4), the casing are equipped in the casing (1)
(1) it is rotatably connected in driven gear (8), the driving gear (3), idle pulley (5) and driven gear (8) successively engage, institute
It states and is rotatably connected in casing (1) screw (9), the inner ring of the screw (9) and driven gear (8) is interference fitted, the casing
(1) it is slidably connected in screw rod (10), the screw (9) is threadedly coupled with screw rod (10), and the side of the screw rod (10) is equipped with
Master cylinder.
2. the electric servo brake equipment according to claim 1 for motor vehicle, which is characterized in that the installation
Structure (7) includes the oblique shoulder (71) being co-axially located on gear shaft (4), is threaded with clamp nut on the gear shaft (4)
(72), the two sides of the idler bearing (6) are contradicted with clamp nut (72) and oblique shoulder (71) respectively.
3. the electric servo brake equipment according to claim 1 for motor vehicle, which is characterized in that the screw rod
(10) drag reduction structures (12) are equipped with, the drag reduction structures (12) include the screw rod (121) being threadedly coupled with screw rod (10), described
Screw rod (121) is successively arranged with washer (122), stop nut (126) and idler wheel (123), the end of the screw rod (121) outside
It is provided with annular element (124), the U-type groove (125) for annular element (124) sliding is provided in the casing (1).
4. the electric servo brake equipment according to claim 1 for motor vehicle, which is characterized in that described driven
It is provided with flat key slot (13) on gear (8) and screw (9), the flat key slot (13) is placed with flat key (14), the screw
(9) shaft shoulder (15) to flat key (14) limit is coaxially arranged on.
5. the electric servo brake equipment according to claim 1 for motor vehicle, which is characterized in that the screw rod
(10) hollow setting, slidably connects big push rod (16) in the screw rod (10) and what is be threadedly coupled with big push rod (16) small pushes away
Bar (17) is equipped with ruggedized construction (18) between the inner wall of the big push rod (16) and the outer wall of small push rod (17).
6. the electric servo brake equipment according to claim 5 for motor vehicle, which is characterized in that the reinforcing
Structure (18) includes the reinforcing member (181) being set on the outside of small push rod (17), is provided with annular skewback on the reinforcing member (181)
(182), it is provided with abaculus (183) on the annular skewback (182), the annular skewback (182) contradicts in small push rod (17)
Between outside and the inside of big push rod (16), pre-load nut (184), the preload are threaded on the small push rod (17)
Nut (184) is connect with reinforcing member (181).
7. the electric servo brake equipment according to claim 6 for motor vehicle, which is characterized in that the reinforcing
Big push rod (16) is stretched out in one end of part (181), and the other end of the reinforcing member (181) is in big push rod (16), the abaculus
(183) it is connected to one end that reinforcing member (181) are located in big push rod (16), the reinforcing member (181) is in big push rod (16) outside
One end restraining position ring block (19) are set, be arranged with fastener (20) on the reinforcing member (181), be provided on the fastener (20) scarce
Mouth slot (21), the fastener (20) have elasticity.
8. the electric servo brake equipment according to claim 6 for motor vehicle, which is characterized in that along the silk
The inner wall of female (9) slidably connects pallet (22), is provided with mandril (23) on the pallet (22), the mandril (23) and braking
Master cylinder connection, is equipped with spring element (24) between the pallet (22) and master cylinder.
9. the electric servo brake equipment according to claim 8 for motor vehicle, which is characterized in that described small to push away
Bar (17) and pallet (22) clearance fit.
10. the electric servo brake equipment according to claim 1 for motor vehicle, which is characterized in that the tooth
Wheel shaft (4) is pierced by casing (1) and is threaded with balance nut (25) far from its one end being threadedly coupled with casing (1), described
Balance nut (25) and the shell of casing (1) contradict.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920091252.8U CN209600479U (en) | 2019-01-21 | 2019-01-21 | Electric servo brake equipment for motor vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920091252.8U CN209600479U (en) | 2019-01-21 | 2019-01-21 | Electric servo brake equipment for motor vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209600479U true CN209600479U (en) | 2019-11-08 |
Family
ID=68399871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920091252.8U Active CN209600479U (en) | 2019-01-21 | 2019-01-21 | Electric servo brake equipment for motor vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209600479U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109720324A (en) * | 2019-01-21 | 2019-05-07 | 南京经纬达汽车科技有限公司 | Electric servo brake equipment for motor vehicle |
-
2019
- 2019-01-21 CN CN201920091252.8U patent/CN209600479U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109720324A (en) * | 2019-01-21 | 2019-05-07 | 南京经纬达汽车科技有限公司 | Electric servo brake equipment for motor vehicle |
| CN109720324B (en) * | 2019-01-21 | 2024-04-19 | 南京经纬达汽车科技有限公司 | Novel electric service brake system for a motor vehicle |
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