CN106641044A - Double-insurance locking mechanism regulating arm - Google Patents
Double-insurance locking mechanism regulating arm Download PDFInfo
- Publication number
- CN106641044A CN106641044A CN201611245532.7A CN201611245532A CN106641044A CN 106641044 A CN106641044 A CN 106641044A CN 201611245532 A CN201611245532 A CN 201611245532A CN 106641044 A CN106641044 A CN 106641044A
- Authority
- CN
- China
- Prior art keywords
- steel ball
- adjustment arm
- guide channel
- double insurance
- worm
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/38—Slack adjusters
- F16D65/40—Slack adjusters mechanical
- F16D65/42—Slack adjusters mechanical non-automatic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2127/00—Auxiliary mechanisms
- F16D2127/06—Locking mechanisms, e.g. acting on actuators, on release mechanisms or on force transmission mechanisms
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
- Gear Transmission (AREA)
Abstract
The invention discloses a double-insurance locking mechanism regulating arm. The double-insurance locking mechanism regulating arm comprises a shell, a worm, a worm shaft, a controlling and regulating mechanism capable of regulating and limiting worm rotation, a fastening device and a clamping plate which is arranged outside the shell and connected with the shell through the fastening device, and the clamping plate is provided with a groove-shaped regulating mechanism which his used for conducting a screw shaft to regulate rotation by cooperating with tightness of the fastening device. According to the double-insurance locking mechanism regulating arm, the clamping plate is designed outside the shell, rotation of the head of the worm shaft is limited by the clamping plate, the braking clearance is precisely regulated, the fallback phenomenon generated in braking can be reduced, and potential safety hazards are eliminated; the clamping plate and the shell are fixed through a bolt, the structure is simple, installation is convenient, and the self-locking capability is very high.
Description
Technical field
The invention belongs to automotive adjusting arm technical field, and in particular to a kind of double insurance locks institutional adjustment arm.
Background technology
In existing brake system of car, automotive adjusting arm major function is the degree of wear according to brake block, is adjusted in good time
Gap between section brake block and brake drum, to reach optimal braking effect.Moreover, adjust arm and be also responsible for transmission braking
The function of moment of torsion, braking and return, it requires and with self-locking, and can require there is higher service life in the course of the work.
Automobile can occur unavoidably under steam vibration and jolt, therefore Jing often causes adjustment arm to loosen, so as to affect automobile
Braking effect, driver infrequently must not be adjusted to adjusting arm.
Anti-loosening locking adjustment arm style in the market is various, and purpose is all the adjustment arm for how preventing from adjusting
No longer loosen.A kind of adjustment arm common in the market, its structure mainly includes housing, turbine, worm screw and worm shaft, turbine
With worm screw is in housing and is intermeshed, worm shaft, with connecting, offers ten binary ball-and-sockets, in shell with worm screw on worm screw
The relevant position of the upper and lower both sides of body offers hole, and steel ball is loaded into the corresponding ball-and-socket of worm shaft by the hole of the upper and lower both sides of housing
It is interior, spring is reinstalled on steel ball, then cover plate bolt is connected on housing with holddown spring.During automobile brake, pass through
The spring force of spring compression steel ball, to prevent to climb out in ball-and-socket of the steel ball from worm shaft.Rotary worm axle, when what is rotated
When active force is more than the spring force of spring compression steel ball, by rotating with the worm screw for connecting with worm shaft, worm screw can drive and mutually nibble
The turbine rotation of conjunction, turbine can drive brake cam to rotate a low-angle, and brake cam rotates the gap made between brake-shoe drum
Change is produced, because it can realize that ten bisections are adjusted on the circle of worm shaft one, so as to realize the essence to brake clearance
Close adjustment.
Because present carload lot is increasing, cause demand braking force when braking also increasing, brake chamber
And braking pressure has all increased, current domestic automobile (particularly heavy-load automobile) produces sometimes rollback phenomenon when braking,
Weak, the poor stop that brakes during braking automobile is caused, potential safety hazard is produced.
The content of the invention
It is contemplated that at least solving one of technical problem present in prior art.For this purpose, the present invention provides a kind of double
Institutional adjustment arm is locked in insurance again, it is therefore an objective to be locked by clamp, limits worm shaft, is solved rollback during braking and is showed
As.
To achieve these goals, the technical scheme taken of the present invention is：
A kind of double insurance locks institutional adjustment arm, including housing, worm screw, worm shaft and scalable limit what worm screw rotated
Control and regulation mechanism, the adjustment arm also includes clamp device and the card being connected with housing by clamp device outside housing
Plate, the clamp is provided with for coordinating the elastic screw shaft that is controlled of clamp device to adjust the grooved governor motion for rotating.
The grooved governor motion includes the first elongate slots being sequentially connected, the second elongate slots and for clamping screw shaft
Draw-in groove, second elongate slots are bigger than the first elongate slots and screw shaft can be rotated in the second elongate slots, and the clamp device is
First bolt, by unscrewing the first bolt and promoting clamp to make the first bolt move along the length direction of the first elongate slots.
The worm shaft include turret head, turret head to being fixed with draw-in groove to both sides.
The control and regulation mechanism includes stopper ring, locking member, the first steel ball, the guide channel in worm shaft and sets
Elastic pressing mechanism of the elastic reset by the first steel-ball limiting in stop ring recess can be passed through in guide channel, guide channel
Side wall is provided with radial direction through hole, and in radial direction through hole, stopper ring is coated at screw shaft to the first steel ball, and locking member can be along guide channel
Motion is compressed elastic pressing mechanism and the first steel ball is clamped in the groove of stopper ring.
The locking member is the second bolt, and the guide channel is the central blind hole in screw shaft.
The elastic pressing mechanism includes the second steel ball and spring, the two ends of spring respectively with the second steel ball and guide channel
The connection of top inwall, the spring moved first by reseting movement the second steel ball of drive along the axial direction of guide channel
Steel ball is squeezed in stop ring recess.
The radial direction through hole and the first steel ball are two, and two radial direction through hole are distributed on the side wall of guide channel.
Sealing ring is provided between the locking member and the upper surface of screw shaft.
The top of the locking member is pyramidal structure.
The clamp is flat sketch plate.
Beneficial effects of the present invention：
1st, clamp design is limited into worm shaft head rotation in hull outside by clamp, accurately adjusts brake clearance, and
Rollback phenomenon during braking can be solved, is eliminated safe hidden trouble；Clamp is fixed with housing by bolt, simple structure is easy for installation,
Self-lock ability is very good.
2nd, using worm screw and double steel ball structures, Adjustment precision is high, accurate positioning, and locking torque accordingly increases.
3rd, double insurance locking, reliability increases, safety coefficient increase.
Description of the drawings
This specification includes the following drawings, and shown content is respectively：
Fig. 1 is the front view of clamp self-locking structure of the present invention；
Fig. 2 is the top view of clamp self-locking structure of the present invention；
Fig. 3 is the internal structure schematic diagram of the present invention；
Fig. 4 is the front view of the present invention；
Fig. 5 is the top view of the present invention；
Fig. 6 is self-locking state figure of the present invention.
It is labeled as in figure：
1st, screw shaft, 2, clamp, the 3, first bolt, 4, turret head, the 5, first elongate slots, the 6, second elongate slots, 7, draw-in groove,
8th, stopper ring, the 9, first steel ball, the 10, second bolt, the 11, second steel ball, 12, spring, 13, turret head.
Specific embodiment
Below against accompanying drawing, by the description to embodiment, further details of is made to the specific embodiment of the present invention
Explanation, it is therefore an objective to help those skilled in the art to have more complete, accurate and deep reason to design of the invention, technical scheme
Solution, and contribute to its enforcement.
As shown in Figures 1 to 6, the present invention relates to a kind of double insurance locks institutional adjustment arm, including housing, worm screw, snail
Bar axle 1 and scalable limit the control and regulation mechanism that worm screw rotates, and loaded in housing, correspondence is offered in worm screw worm screw on housing
The installing hole that hole connects, the lower end of worm shaft coordinates through installing hole with worm screw, and the adjustment arm also includes clamp device and sets
The clamp 2 being connected with housing by clamp device outside housing, clamp 2 is provided with for coordinating that clamp device is elastic to be controlled spiral shell
Bar axle 1 adjusts the grooved governor motion for rotating.Clamp 2 is preferably flat sketch plate.
Grooved governor motion includes the first elongate slots 5 being sequentially connected, the second elongate slots 6 and for clamping screw shaft 1
Draw-in groove 7, the elongate slots 5 of the second elongate slots 6 to the first are greatly and screw shaft 1 can be rotated in the second elongate slots 6, and clamp device is first
Bolt, by unscrewing the first bolt and promoting clamp to make the first bolt move along the length direction of the first elongate slots.Worm shaft 1 is wrapped
Include turret head 13, turret head 13 to being fixed with draw-in groove 7 to both sides, block screw shaft turret head thus by draw-in groove 7
To both sides, cooperation tightens the first bolt to be fixed clamp, the rotation of screw shaft can be effectively limited, so as to pass through clamp
Locking worm shaft.First bolt can adopt M8 bolts, unscrew M8 bolts so as to which the relative length direction along the first elongate slots 6 is moved
Move (as shown in Figure 2 to left movement), and then screw shaft departs from draw-in groove 7 and enters the second elongate slots 6, now can be entered with rotary screw axle
Row is rotated and adjusted；If M8 bolts are relative moving right along the first elongate slots, screw shaft is fastened in draw-in groove, screws M8 bolts, snail
Bar axle cannot be rotated, and then prevent worm screw from rotating, and reach the purpose of locking.
Control and regulation mechanism can realize using existing method, it is preferred that control to adjust mechanism including stopper ring 8,
Locking member, the first steel ball 9, the guide channel in worm shaft 1 and can be by elastic reset by first in guide channel
The spacing elastic pressing mechanism in stop ring recess of steel ball 9, the side wall of guide channel is provided with radial direction through hole, and the first steel ball 9 is located at
In radial direction through hole, stopper ring 8 is coated at screw shaft, stopper ring and uses cooperatively with the first steel ball 9, and locking member can be along guide channel
Motion is compressed elastic pressing mechanism and the first steel ball 9 is tight in the groove of stopper ring.Locking member is preferably the second bolt 10
The purpose of control locking can be played, guide channel is the central blind hole in screw shaft 1.Second bolt 10 and screw shaft 1
Upper surface between be provided with sealing ring, it is ensured that fit sealing effect.Radial direction through hole and the first steel ball 9 can be two, and two
Individual radial direction through hole is distributed on the side wall of central blind hole, that is to say that the line between two radial direction through hole is divided into central blind hole
Two sections, form symmetrical structure.
Elastic pressing mechanism includes the second steel ball 11 and spring 12, the two ends of spring 12 respectively with the second steel ball 11 and center
The top inwall connection of blind hole, spring 12 by reseting movement the second steel ball 11 of drive along the axial direction of central blind hole move by
First steel ball 9 is squeezed in stop ring recess.It is concrete when arranging, the second steel ball than the first steel ball greatly, when the second bolt it is blind along center
It is when hole moves downward, the first steel ball is stuck in stop ring recess, while the second steel ball is compressed downwards into a certain distance；When
Two bolts are moved upwards along central blind hole, because the elastic recovery of spring 12 is acted on, promote the second steel ball to move upwards, Jin Ertong
Cross the second steel ball the first steel ball is squeezed in stop ring recess, prevent worm screw from rotating, reach the purpose of locking adjustment arm.
The top of the second bolt is preferably pyramidal structure.Using pyramidal structure, during locking, the conical surface of cone-shaped end
It is tangent with the first steel ball 9, it is easy to the second bolt 10 to push and progressively the first steel ball 9 is pressed in stop ring recess so as to firmly snaps in
In stop ring recess, the purpose of preferable anti-loosening locking is reached.
The double insurance of the present invention locks the self-locking state principle of institutional adjustment arm：The second bolt is screwed into downwards manually
5mm, it is by the squeezing action of the second bolt, two the first steel balls are stuck in stop ring recess, prevent worm screw from rotating, reach lock
The purpose of tight adjustment arm.
Anti-rotation state principle is：The second bolt is back-outed upwards 5mm manually, is acted on by recoil of spring, promote the second steel
Ball is moved, and then two the first steel balls are withstood in stop ring recess, prevents worm screw from rotating, and reaches the mesh of locking adjustment arm anti-rotation
's.
Adjustment state：When adjust arm be in anti-rotation state when, due to the second bolt give the first steel ball extruding force, first
Steel ball is withstood in stop ring recess by the second steel ball, and now the relative top in the first steel ball in the top of the second bolt, uses
During power rotary worm axle turret head, when resilient pressing force of the power for rotating more than the second steel ball, stop ring recess drives two the
One steel ball to center is moved, and the second steel ball is pushed to be made spring-compressed and then to move down, make screw shaft can with it is forward and reverse manually
Rotate, such that it is able to drive worm and wormwheel to rotate, reach the purpose of adjustment adjustment arm.
The present invention is exemplarily described above in association with accompanying drawing.Obviously, the present invention is implemented and do not receive above-mentioned side
The restriction of formula.As long as employ the improvement of the various unsubstantialities that method of the present invention design and technical scheme are carried out；Or not
It is improved, the above-mentioned design of the present invention and technical scheme are directly applied to into other occasions, in protection scope of the present invention
Within.
Claims (10)
1. a kind of double insurance locks institutional adjustment arm, including housing, worm screw, worm shaft and scalable limit the control that worm screw rotates
Governor motion processed, it is characterised in that：The adjustment arm also includes clamp device and outside housing by clamp device and housing
The clamp of connection, the clamp is provided with for coordinating the elastic screw shaft that is controlled of clamp device to adjust the grooved for rotating regulation machine
Structure.
2. according to claim 1 double insurance locks institutional adjustment arm, it is characterised in that：The grooved governor motion includes
The first elongate slots, the second elongate slots and the draw-in groove for clamping screw shaft being sequentially connected, second elongate slots are longer than first
Shape groove is big and screw shaft can be rotated in the second elongate slots, and the clamp device is the first bolt, by unscrewing the first bolt simultaneously
Clamp is promoted the first bolt is moved along the length direction of the first elongate slots.
3. according to claim 2 double insurance locks institutional adjustment arm, it is characterised in that：The worm shaft includes hexagonal
Head, turret head to being fixed with draw-in groove to both sides.
4. according to claim 1 double insurance locks institutional adjustment arm, it is characterised in that：The control and regulation mechanism includes
Stopper ring, locking member, the first steel ball, the guide channel in worm shaft and in guide channel can by elastic reset will
Elastic pressing mechanism of first steel-ball limiting in stop ring recess, the side wall of guide channel is provided with radial direction through hole, and the first steel ball sets
In radial direction through hole, stopper ring is coated at screw shaft, locking member can move along guide channel be compressed elastic pressing mechanism and
First steel ball is clamped in the groove of stopper ring.
5. according to claim 4 double insurance locks institutional adjustment arm, it is characterised in that：The locking member is the second spiral shell
Bolt, the guide channel is the central blind hole in screw shaft.
6. according to claim 4 double insurance locks institutional adjustment arm, it is characterised in that：The elastic pressing mechanism includes
Second steel ball and spring, the two ends of spring are connected respectively with the top inwall of the second steel ball and guide channel, and the spring passes through
Reseting movement drives the second steel ball to move along the axial direction of guide channel and the first steel ball is squeezed in stop ring recess.
7. according to claim 4 double insurance locks institutional adjustment arm, it is characterised in that：The radial direction through hole and the first steel
Ball is two, and two radial direction through hole are distributed on the side wall of guide channel.
8. according to claim 4 double insurance locks institutional adjustment arm, it is characterised in that：The locking member and screw shaft
Sealing ring is provided between upper surface.
9. according to claim 4 double insurance locks institutional adjustment arm, it is characterised in that：The top of the locking member is cone
Shape structure.
10. according to claim 1 double insurance locks institutional adjustment arm, it is characterised in that：The clamp is flat
Sketch plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611245532.7A CN106641044B (en) | 2016-12-29 | 2016-12-29 | A kind of double insurance locking institutional adjustment arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611245532.7A CN106641044B (en) | 2016-12-29 | 2016-12-29 | A kind of double insurance locking institutional adjustment arm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106641044A true CN106641044A (en) | 2017-05-10 |
| CN106641044B CN106641044B (en) | 2018-08-17 |
Family
ID=58835739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611245532.7A Active CN106641044B (en) | 2016-12-29 | 2016-12-29 | A kind of double insurance locking institutional adjustment arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106641044B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4499978A (en) * | 1981-11-09 | 1985-02-19 | C. S. Norcross & Sons | Slack adjuster |
| CN102537153A (en) * | 2011-12-22 | 2012-07-04 | 晋江市万宏汽车部件有限公司 | Manual braking adjusting arm looseness-preventing and locking device |
| CN203421094U (en) * | 2013-08-29 | 2014-02-05 | 泉州鲤城福辉汽车配件有限公司 | Adjusting mechanism of brake adjusting arm |
| CN203627615U (en) * | 2013-12-25 | 2014-06-04 | 李文平 | Structure-improved manual adjusting arm capable of being automatically located and locked |
| US20140231186A1 (en) * | 2014-04-29 | 2014-08-21 | Da Hao Wu | Mechanism for adjusting a distance between wheel rim and brake pad |
| CN203822919U (en) * | 2014-01-14 | 2014-09-10 | 洪清河 | Improved detachable sealing brake adjusting arm |
| CN104295643A (en) * | 2014-09-30 | 2015-01-21 | 福建达福汽车零部件有限公司 | Manual adjusting arm |
-
2016
- 2016-12-29 CN CN201611245532.7A patent/CN106641044B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4499978A (en) * | 1981-11-09 | 1985-02-19 | C. S. Norcross & Sons | Slack adjuster |
| CN102537153A (en) * | 2011-12-22 | 2012-07-04 | 晋江市万宏汽车部件有限公司 | Manual braking adjusting arm looseness-preventing and locking device |
| CN203421094U (en) * | 2013-08-29 | 2014-02-05 | 泉州鲤城福辉汽车配件有限公司 | Adjusting mechanism of brake adjusting arm |
| CN203627615U (en) * | 2013-12-25 | 2014-06-04 | 李文平 | Structure-improved manual adjusting arm capable of being automatically located and locked |
| CN203822919U (en) * | 2014-01-14 | 2014-09-10 | 洪清河 | Improved detachable sealing brake adjusting arm |
| US20140231186A1 (en) * | 2014-04-29 | 2014-08-21 | Da Hao Wu | Mechanism for adjusting a distance between wheel rim and brake pad |
| CN104295643A (en) * | 2014-09-30 | 2015-01-21 | 福建达福汽车零部件有限公司 | Manual adjusting arm |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106641044B (en) | 2018-08-17 |
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