CN208746073U - A kind of Integral steering tubing string locking device - Google Patents
A kind of Integral steering tubing string locking device Download PDFInfo
- Publication number
- CN208746073U CN208746073U CN201821147917.4U CN201821147917U CN208746073U CN 208746073 U CN208746073 U CN 208746073U CN 201821147917 U CN201821147917 U CN 201821147917U CN 208746073 U CN208746073 U CN 208746073U
- Authority
- CN
- China
- Prior art keywords
- piston rod
- piston
- spring
- force
- rear end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model discloses a kind of Integral steering tubing string locking devices, it is related to vehicle steering wheel steering position adjustment technology field, it is bigger to solve steering column regulating mechanism occupied space in the prior art, it is unable to satisfy the requirement of automotive light weight technology setting, the utility model includes drive end bearing bracket, piston, piston rod, cylinder barrel, air inlet and rear end cap, one end of cylinder barrel is fixedly connected with drive end bearing bracket, the other end of cylinder barrel is fixedly connected with rear end cap, piston is located between the drive end bearing bracket and rear end cap inside cylinder barrel, and air inlet connects the chamber between drive end bearing bracket and piston；It is characterized by: piston rod runs through drive end bearing bracket, piston and rear end cap, force-increasing mechanism and spring are disposed in cylinder barrel from left to right, between piston and rear end cap, piston rod runs through force-increasing mechanism for force-increasing mechanism and spring, force-increasing mechanism and piston rod clearance fit, spring are set on piston rod.The utility model has many advantages, such as that structure is simple, saves space.
Description
Technical field
The utility model relates to vehicle steering wheel steering position adjustment technology fields, more particularly to a kind of monoblock type
Steering column locking device.
Background technique
Position of vehicle steering wheel adjustment is realized by steering column regulating mechanism, in automobile use process, steering tube
Column regulating mechanism makes entire mechanism maintain the lock status by locking device, mainly logical when needing adjustment direction disk position
It crosses manually or pneumatic mode realizes unlock.Manual unlocking mode manipulates relatively elaborate, does not improve grade, and pneumatic unlocking manner is because adjusting
Section is convenient, light, and moderate cost can increase the attraction of vehicle, be widely adopted in commercial vehicle, especially in major host
Standard configuration has been used as in the high-end heavy truck that factory releases.Currently, pneumatic locking device structure is main in steering column industry
For the split type structure of locking cylinder plus lever mechanism, cylinder inner spring power acts on steering column after amplifying by lever mechanism
It is realized on regulating mechanism and locks and unlocks function, i.e., the compressed spring compression piston in cylinder, piston pushes lever by lever
The convex block of two sides deforms steering column two sidewalls, generates frictional force between the fixed bracket of steering column tube and locks steering column tune
Save mechanism.This structure needs certain space that could arrange, causes steering column overall structure oversized, is not easy to meet vehicle
The requirement of light-weight design.
And steering column regulating mechanism must maintain the lock status in use, when applying 1200N on the steering wheel
Power when, steering column regulating mechanism cannot have movement.So enough pressure, ability must be applied to steering column two sidewalls
Guarantee has enough frictional force to make to turn to regulating mechanism holding locking.If directly applied with common cylinder in column tube two sidewalls
Enough pressure, the spring force in cylinder must be sufficiently large, and cylinder will overcome spring under the conditions of vehicle air pressure (0.8~1MPa)
Power and realize unlock, cylinder bore just must it is sufficiently large, steering column space is unable to satisfy the installation of cylinder.Increase lever mechanism
Afterwards, spring force can reduce to which cylinder bore reduces, but lever must assure that certain length, can just there is enough times magnifications
Number, causes entire mechanism occupied space larger, is difficult to meet the requirement of vehicle light-weight design.In addition, because of split type structure part
More, general assembly debugging difficulty is larger.
Utility model content
The purpose of this utility model is that: bullet is overcome in order to solve cylinder under the conditions of vehicle air pressure (0.8~1MPa)
Spring force and realize unlock, cylinder bore just must it is sufficiently large, steering column space is unable to satisfy the installation of cylinder.Increase Lever machine
After structure, spring force be can reduce to which cylinder bore reduces, but lever must assure that certain length, can just there is enough amplifications
Multiple causes entire mechanism occupied space larger, is difficult to meet the technical issues of vehicle light-weight design requires, the utility model
A kind of compact-sized, simple Integral steering tubing string locking device is provided.
The utility model specifically uses following technical scheme to achieve the goals above:
A kind of Integral steering tubing string locking device, including drive end bearing bracket, piston, piston rod, cylinder barrel, air inlet and rear end
Lid, one end of the cylinder barrel are fixedly connected with drive end bearing bracket, and the other end of the cylinder barrel is fixedly connected with rear end cap, the piston position
Between drive end bearing bracket and rear end cap inside cylinder barrel, the air inlet connects the chamber between drive end bearing bracket and piston；Its feature exists
In: the piston rod runs through the drive end bearing bracket, piston and rear end cap, is disposed with force-increasing mechanism from left to right in the cylinder barrel
And spring, between piston and rear end cap, the piston rod runs through the force-increasing mechanism, described for the force-increasing mechanism and spring
Force-increasing mechanism and the piston rod clearance fit, the spring are set on piston rod.By the way that Double-conical-surface steel ball power increasing machine is arranged
Structure realizes reinforcement, and the parts such as spring are integrated in cylinder block, keeps entire locking mechanism structure compact, the cloth in steering column
It sets and occupies little space, effectively reduce the volume and weight of entire steering column, played for vehicle light-weight design certain
Effect reduces column assy assembly and adjusts difficulty, improves production efficiency.
Working principle: when air inlet and atmosphere are connected, piston rod stretches out to the left under the action of the spring, when air inlet has pressure
When contracting air enters, for piston toward moving to right, piston pushes force-increasing mechanism, offsets bullet after axial compressive force is multiplied by force-increasing mechanism
The elastic force of spring allows piston rod to ask and moves to right certain distance.
Further, the force-increasing mechanism is described from left to right successively including tapered sleeve, internal taper ring, steel ball and support ring
Tapered sleeve is frustum cone structure, and the tapered sleeve and the piston rod clearance fit, diameter is sequentially reduced the tapered sleeve from left to right, described
Internal taper ring is cylindrical structure, is provided with irregularly-shaped hole on the internal taper ring, the irregularly-shaped hole by straight hole and with the straight hole
Concentric bellmouth is constituted, and the tapered sleeve passes through the internal taper ring, and the steel ball is bored with the conical surface of tapered sleeve, internal taper ring simultaneously
The conical surface in hole and the left end face contact of support ring, the support ring are fixedly connected with the piston rod, the support ring right end
The end thereof contacts in face and spring.Promotion is reduced by the parts synergistic effect such as setting tapered sleeve, internal taper ring, steel ball and support ring
The active force of spring reduces the pressure for acting on the compressed air on piston, the Integral steering pipe relative to conventional structure
Column locking device, the utility model can allow the thrust on cylinder that can push 1 to 6.5 times of spring compression force, to realize
The purpose of reinforcement, has saved energy consumption.
Further, the spring includes main spring and auxiliary spring, and the main spring is set in outside auxiliary spring.Pass through setting
Inside and outside two springs synergistic effect improves piston rod axial pre tightening force after the pretightning force of spring passes to piston rod, improves this
The job stability of device.
Further, through-hole, the through-hole and the piston rod clearance fit are provided on the rear end cap.By rear
Through-hole is arranged on end cap can pass through rear end cap by piston rod, from the reverse stroke for increasing piston rod.
Further, the piston rod is multi-diameter shaft, and piston rod left end diameter is greater than right end diameter.By the way that rank is arranged
Terraced axis, stroke thrust surface, using the one degree of freedom of the support ring on thrust surface limitation multi-diameter shaft, the fixed form of support ring is more
Add simplicity, reduces the manufacturing cost of the present apparatus.
Further, the drive end bearing bracket end face is provided with adjustment gasket, and the adjustment gasket is matched with the piston rod gap
It closes.Gasket is adjusted by setting, allows the thickness of the adjustable adjustment gasket of the present apparatus, compensation present apparatus ruler in the longitudinal direction
Very little error can allow the present apparatus steadily to cooperate with steering column regulating mechanism, while by adjusting gasket by the position of the present apparatus
Setting can be effectively fixed, and improve the stability of the present apparatus.
The beneficial effects of the utility model are as follows:
1. realizing reinforcement by setting Double-conical-surface steel-ball force amplifier, and the parts such as spring are integrated in cylinder block, are made
Entire locking mechanism structure is compact, arranges and occupies little space in steering column, effectively reduces the volume of entire steering column
And weight, certain effect is played for vehicle light-weight design, column assy assembly is reduced and adjusts difficulty, improve
Production efficiency.
2. reducing the work of push the spring by the parts synergistic effect such as setting tapered sleeve, internal taper ring, steel ball and support ring
Firmly, the pressure for acting on the compressed air on piston is reduced, the Integral steering tubing string relative to conventional structure locks dress
It sets, the utility model can allow the thrust on cylinder that can push 1 to 6.5 times of spring compression force, to realize the mesh of reinforcement
, save energy consumption.
3. improving piston rod after the pretightning force of spring passes to piston rod by the way that inside and outside two springs synergistic effect is arranged
Axial pre tightening force improves the job stability of the present apparatus.
4. rear end cap can be passed through by piston rod by the way that through-hole is arranged on rear end cap, from the reversed row for increasing piston rod
Journey.
5. by setting multi-diameter shaft, stroke thrust surface utilizes a freedom of the support ring on thrust surface limitation multi-diameter shaft
Degree, the fixed form of support ring is easier, reduces the manufacturing cost of the present apparatus.
6. by setting adjustment gasket, allow the present apparatus it is adjustable adjustment gasket thickness, compensate the present apparatus in length side
Upward scale error can allow the present apparatus steadily to cooperate with steering column regulating mechanism, while allow this by adjusting gasket
The position of device can be effectively fixed, and improve the stability of the present apparatus.
Detailed description of the invention
Fig. 1 is the utility model structure diagram；
Fig. 2 is tapered sleeve cross-sectional view in Fig. 1；
Fig. 3 is piston rod construction schematic diagram in Fig. 1；
Fig. 4 is internal taper ring cross-sectional view in Fig. 1；
Fig. 5 is the utility model and steering column regulating mechanism connection relationship diagram；
Fig. 6 is stress analysis schematic diagram inside the utility model.
Appended drawing reference: 1- drive end bearing bracket, 2- piston, 3- tapered sleeve, 4- steel ball, 5- support ring, 6- spring, 7- rear end cap, 8- are living
Stopper rod, 9- cylinder barrel, 10- internal taper ring, 11- air inlet, 12- adjust gasket, 13- steering column regulating mechanism, 14- steering column
Fixed bracket.
Specific embodiment
In order to which those skilled in the art better understand the utility model, with reference to the accompanying drawing with following embodiment to this
Utility model is described in further detail.
Embodiment 1
As shown in Figs 1-4, the present embodiment provides a kind of Integral steering tubing string locking device, including drive end bearing bracket 1, piston 2,
One end of piston rod 8, cylinder barrel 9, air inlet 11 and rear end cap 7, the cylinder barrel 9 is fixedly connected with drive end bearing bracket 1, the cylinder barrel 9
The other end is threadedly coupled with rear end cap 7, and the piston 2 is set to inside cylinder barrel 9, and the piston 2 is located at drive end bearing bracket 1 and rear end cap
Between 7, the piston rod 8 runs through the drive end bearing bracket 1, piston 2 and rear end cap 7, and the air inlet 11 connects drive end bearing bracket 1 and piston
Chamber between 2；Force-increasing mechanism and spring 6, the force-increasing mechanism and spring 6 are disposed in the cylinder barrel 9 from left to right
Between piston 2 and rear end cap 7, the piston rod 8 runs through the force-increasing mechanism, the force-increasing mechanism and the piston rod 8
Clearance fit, the spring 6 are set on piston rod 8.
The force-increasing mechanism successively includes tapered sleeve 3, internal taper ring 10, steel ball 4 and support ring 5, the tapered sleeve 3 from left to right
For frustum cone structure, the tapered sleeve 3 and 8 clearance fit of piston rod, diameter is sequentially reduced the tapered sleeve 3 from left to right, described
Internal taper ring 10 is cylindrical structure, and the internal taper ring 10 is run through by straight hole and the bellmouth concentric with the straight hole, described
Tapered sleeve 3 passes through the internal taper ring 10, the steel ball 4 while the conical surface and branch with the conical surface of tapered sleeve 3,10 taper hole of internal taper ring
The left end face contact of pushing out ring 5 is consolidated the support ring 5 and the piston rod 8 by the thrust surface on snap ring and piston rod 8
Fixed, the end thereof contacts of support ring 5 right side and spring 6, the other end of spring is contacted with rear end cap 7.
The spring 6 is compressed spring, and the quantity of the spring 6 is two, and one of spring 6 is set in another spring
Outside 6.
A through-hole, the through-hole and 8 clearance fit of piston rod are provided on the rear end cap 7, when air inlet 11
When being passed through pressure-air, can compressed spring, piston rod 8 is pushed into a distance backward.
Embodiment 2
As shown in Figs 1-4,1 end face of drive end bearing bracket is provided with adjustment gasket 12, adjusts and is arranged on the right side of gasket 12
Have a counterbore, the counterbore and 8 clearance fit of piston rod, the right side of adjustment gasket 12 are provided with boss, the boss with
Interporal lacuna cooperation on steering column regulating mechanism 13, the right end of the rear end cap 7 are provided with boss, the boss on rear end cap 7
Also cooperate with the interporal lacuna on steering column regulating mechanism 13.
Embodiment 3
As shown in figure 5, the installation and application method of the present apparatus are as follows: the present apparatus is mounted on position of vehicle steering wheel adjustment machine
In steering column regulating mechanism 13 in structure, the left and right sides of the present apparatus steering tube with steering column regulating mechanism two sides respectively
Column regulating mechanism 13 is close to, and to be first passed through compressed air toward the air inlet of the present apparatus when assembly, the piston rod of the present apparatus is stretched out
Amount shortens, and side can be mounted in steering column regulating mechanism 13, by entire steering column regulating mechanism 13 by turning after installing
It is fixed to the fixed bracket 14 of tubing string.
When air inlet 11 and atmosphere are connected, when steering column 13 lockup state of regulating mechanism, steering column regulating mechanism 13
Is close under the promotion of piston rod 8 with steering column fixed bracket 14 in the present apparatus, at this time steering column regulating mechanism 13 with turn
It is bigger to the frictional force between the fixed bracket 14 of tubing string, so that steering column regulating mechanism 13 be locked.Specifically, piston 2
The no pressure of left side, the masterpiece of spring 6 are used to support ring 5, and support ring 5 drives piston rod 8 to be moved to the left, after spring force passes through
End cap 7 and adjustment gasket 12 act on 13 two sides of steering column regulating mechanism, are deformed steering column regulating mechanism 13,
Enough frictional force is generated between the fixed bracket 14 of steering column and is achieved the purpose that steering column regulating mechanism and is locked.
When wanting adjustment direction disk, air valve switch ventilation, pressure P=Full Vehicle System pressure P vehicle at air inlet (0.8~
1MPa), 2 left side stress of piston pushes tapered sleeve 3 to move right, and tapered sleeve pushes steel ball 4, and steel ball 4 pushes support ring 5 and band again
Piston bar (8) moves right, and device overall length L is made to shorten, and eliminates the power for acting on 13 two sides of steering column regulating mechanism, makes to turn
A certain amount of gap is generated between tubing string regulating mechanism 13 and the fixed bracket 14 of steering column, so that reaching smoothly to adjust
Save the purpose of steering wheel.
Embodiment 4
As shown in figure 3, the 8 left end diameter of piston rod is greater than right end diameter, 8 diameter of piston rod is arranged on lesser one end
There is annular groove, for installing elastic collar, is consolidated support ring 5 and piston rod 8 using elastic collar and the thrust surface on piston rod 8
It is fixed.
Embodiment 5
As shown in fig. 6, set piston external diameter as d1, diameter of bore d2；The effective area that air pressure P vehicle acts on piston is
S1, then: S1=π [(d1/2)2-(d2/2)2]；
If it is F1 that air pressure P vehicle, which acts on the power on piston 1,；
F1=P vehicle * S1
Steel ball 4 acts on the power in support ring 5 are as follows: F2=spring compression force；
Double-conical-surface steel ball reinforcement multiple:(when not considering coefficient of friction)；
Cylinder piston stroke is L1；
Cylinder overall length variable quantity: L2=L1/i；
D1=42mm, d2=14mm, α=30 ° are taken in present case；β=17.5 °；L1=13mm, then F2/F1=i=6.5；
L2=13/6.5=2mm is it follows that cylinder F1 can open 6.5 times of spring compression force, to realize the purpose of reinforcement, gas
Cylinder overall length variable quantity reaches 2mm, can provide enough gaps for steering column regulating mechanism, makes to adjust lighter smooth.
The above, the only preferred embodiment of the utility model, are not intended to limit the utility model, the utility model
Scope of patent protection be subject to claims, it is equivalent made by all specifications and accompanying drawing content with the utility model
Structure change similarly should be included in the protection scope of the utility model.
Claims (6)
1. a kind of Integral steering tubing string locking device, including drive end bearing bracket (1), piston (2), piston rod (8), cylinder barrel (9), air inlet
Mouthful (11) and rear end cap (7), one end of the cylinder barrel (9) are fixedly connected with drive end bearing bracket (1), the other end of the cylinder barrel (9) and
Rear end cap (7) is fixedly connected, and the piston (2) is located between cylinder barrel (9) internal drive end bearing bracket (1) and rear end cap (7), it is described into
Port (11) connects the chamber between drive end bearing bracket (1) and piston (2)；It is characterized by: the piston rod (8) runs through the front end
(1), piston (2) and rear end cap (7) are covered, is disposed with force-increasing mechanism and spring (6), institute from left to right in the cylinder barrel (9)
It states force-increasing mechanism and spring (6) is located between piston (2) and rear end cap (7), the piston rod (8) runs through the force-increasing mechanism,
The force-increasing mechanism and the piston rod (8) clearance fit, the spring (6) are set on piston rod (8).
2. Integral steering tubing string locking device according to claim 1, it is characterised in that: the force-increasing mechanism from a left side to
Right successively includes tapered sleeve (3), internal taper ring (10), steel ball (4) and support ring (5), and the tapered sleeve (3) is frustum cone structure, described
Tapered sleeve (3) and the piston rod (8) clearance fit, diameter is sequentially reduced the tapered sleeve (3) from left to right, the internal taper ring
(10) be cylindrical structure, be provided with irregularly-shaped hole on the internal taper ring (10), the irregularly-shaped hole by straight hole and with the straight hole
Concentric bellmouth is constituted, and the tapered sleeve (3) passes through the internal taper ring (10), the steel ball (4) while the cone with tapered sleeve (3)
The left end face contact in face, the conical surface of internal taper ring (10) taper hole and support ring (5), the support ring (5) and the piston rod
(8) it is fixedly connected, the end thereof contacts of support ring (5) right side and spring (6).
3. Integral steering tubing string locking device according to claim 1, it is characterised in that: the spring (6) includes master
Spring and auxiliary spring, the main spring are set in outside auxiliary spring.
4. Integral steering tubing string locking device according to claim 1, it is characterised in that: set on the rear end cap (7)
It is equipped with through-hole, the through-hole and the piston rod (8) clearance fit.
5. Integral steering tubing string locking device according to claim 1, it is characterised in that: the piston rod (8) is rank
Terraced axis, piston rod (8) the left end diameter are greater than right end diameter.
6. Integral steering tubing string locking device according to claim 1, it is characterised in that: drive end bearing bracket (1) end face
It is provided with adjustment gasket (12), the adjustment gasket (12) and the piston rod (8) clearance fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821147917.4U CN208746073U (en) | 2018-07-19 | 2018-07-19 | A kind of Integral steering tubing string locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821147917.4U CN208746073U (en) | 2018-07-19 | 2018-07-19 | A kind of Integral steering tubing string locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208746073U true CN208746073U (en) | 2019-04-16 |
Family
ID=66055791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821147917.4U Active CN208746073U (en) | 2018-07-19 | 2018-07-19 | A kind of Integral steering tubing string locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208746073U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111927937A (en) * | 2020-08-12 | 2020-11-13 | 内蒙古第一机械集团股份有限公司 | Ball cage type transmission structure with escape and extension function |
-
2018
- 2018-07-19 CN CN201821147917.4U patent/CN208746073U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111927937A (en) * | 2020-08-12 | 2020-11-13 | 内蒙古第一机械集团股份有限公司 | Ball cage type transmission structure with escape and extension function |
| CN111927937B (en) * | 2020-08-12 | 2023-02-17 | 内蒙古第一机械集团股份有限公司 | Ball cage type transmission structure with escape and extension function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1158202A3 (en) | Independently tunable variable bleed orifice | |
| US20080265476A1 (en) | Self-pumping hydropneumatic spring strut with internal level control | |
| CN201606440U (en) | Gas spring capable of rigidly locking | |
| CN110886803B (en) | Single-cylinder type hydro-pneumatic spring | |
| CN208746073U (en) | A kind of Integral steering tubing string locking device | |
| CN107061834B (en) | Built-in driving axial-flow type regulating valve | |
| CN201368169Y (en) | Motorbike front shock absorber with adjustable damping and hardness | |
| CN101509533B (en) | Damp and rigidity adjustable front damper of motorcycle | |
| EP3147547A1 (en) | Parallel cylinder type check valve | |
| CN2854204Y (en) | Oil-gas spring of heavy cross-country vehicle | |
| US20060163017A1 (en) | Hollow rod monotube shock absorber | |
| CN201031964Y (en) | Plunger piston dual-purpose lock controlled valve | |
| CN209083890U (en) | A kind of ride control shock absorber | |
| WO2008012704A3 (en) | Hydropneumatic regenerative actuator | |
| US20100199963A1 (en) | Paintball gun | |
| CN201925497U (en) | Adjustment structure of double eccentric butterfly valve rod | |
| CN214578023U (en) | Adjustable buffer oil cylinder | |
| CN113983111A (en) | Automobile electric control suspension with built-in hydraulic oil way | |
| CN101020457A (en) | Automobile braking force regulator | |
| CN205504144U (en) | Impact mitigation mechanism is prevented to angle stroke cylinder | |
| CN107687457A (en) | A kind of damp type cylinder | |
| CN207660658U (en) | Camshaft and engine suitable for engine braking | |
| CN206984007U (en) | A kind of track traffic gyrocar steering cylinder device | |
| US7197975B2 (en) | Piston-cylinder unit | |
| CN205446731U (en) | Highly -compressed air choke valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |