CN103900761A - Main shaft locking protective device of tire testing machine and method thereof - Google Patents
Main shaft locking protective device of tire testing machine and method thereof Download PDFInfo
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- CN103900761A CN103900761A CN201210571166.XA CN201210571166A CN103900761A CN 103900761 A CN103900761 A CN 103900761A CN 201210571166 A CN201210571166 A CN 201210571166A CN 103900761 A CN103900761 A CN 103900761A
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- Prior art keywords
- main shaft
- wheel rim
- bearing pin
- fixture block
- locking
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/02—Tyres
- G01M17/021—Tyre supporting devices, e.g. chucks
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Balance (AREA)
- Tires In General (AREA)
Abstract
The invention relates to a main shaft locking protective device of a tire testing machine and a method thereof. In allusion to a locking clamp block, in-place assembling detection is performed and a mechanical protection mechanism is arranged. That is to say, a locking state of the clamp block is limited constrainedly to prevent the locking failure problem caused by gas circuit part failure, air pressure reduction or unexpected closing of an air source. Thus, equipment usage and safety of operating personnel are protected effectively. The main shaft locking protective device comprises clamp blocks which are distributed along the radial direction of a main shaft and are used for clamping an upper wheel rim shaft. Several pins are arranged along the axial direction of the main shaft. A setting tank is arranged along the axial direction of the main shaft in the end face of the clamp blocks. When the clamp blocks lock the upper wheel rim shaft, a free end of each pin is inserted into the setting tank. The lateral side of the main shaft is provided with a driver used for controlling position change of the pins along the axial direction of the main shaft and a detector used for detecting position change of the pins. Only when the clamp blocks and the upper wheel rim shaft are in a locking state, the pins can operate with the setting tank so as to limit the clamp blocks and maintain the locking state in allusion to the upper wheel rim shaft.
Description
Technical field
The present invention relates to principal shaft locking protective device and method thereof that one is applied to tyre tester (as dynamic balancer, evenness tester etc.), belong to rubber manufacturing machinery and industrial automation.
Background technology
Manufacturing in the technological process of rubber tyre, need carry out online a series of test item, as necessary through transient equilibrium and uniformity test before tire shipment, to detect and to grade in manufacture process for tire.
On dynamic balancer, conventionally need to be detected tire and be installed between upper and lower wheel rim, now go up wheel rim axle and be inserted in main shaft and be locked, and then inflate, High Rotation Speed measuring.
In this type of test process, if upper wheel rim axle and principal shaft locking are not in place, after tyre inflating, meeting be collapsed axle phenomenon and be formed the brute force impact for upper wheel rim part, and equipment is caused damage.
In addition, upper wheel rim axle with principal shaft locking after, tire is under inflated condition, control principal shaft locking cylinder valve block if occur malfunctioning, or control the situation that source of the gas is closed, principal shaft locking is malfunctioning, and tire collapses upper wheel rim axle go out under gas pressure, under main shaft High Rotation Speed state, can divide and bump with upper drop center portion.
Existing dynamic balance test machine part-structure as shown in rear accompanying drawing 1, the locking of main shaft part (20) and unclamp check point be air pressure detect, can not reflect truly locking fixture block (30) physical location.If upper wheel rim axial region (40) inserts the malposition of main shaft part (20), the groove (or screw thread) of locking between fixture block (30) and upper wheel rim axial region (40) can not correctly coordinate, and air pressure detection display main shaft part (20) is locking state, now tyre inflating will cause and collapse axle phenomenon.
Use above-mentioned prior art, apparatus for locking main shaft is to control respectively 4 locking fixture blocks (30) by 4 cylinders, not relevant further mechanical protection mechanism in locking process.Once occurring that upper wheel rim axial region (40) is locked not in placely just may, because cylinder valve block is malfunctioning or control source of the gas is closed and caused locking malfunctioning, cause serious harm to equipment and operator safety.
In view of this, the special present patent application that proposes.
Summary of the invention
Tyre tester principal shaft locking protective device of the present invention and method thereof; its object is to address the above problem and proceeds to position for locking fixture block and detect and further mechanical protection mechanism; force to limit the locking state of fixture block and prevent because gas path component is malfunctioning, air pressure reduces or source of the gas is surprisingly closed the locking Its Failures causing, thereby protection equipment uses and operating personnel's safety effectively.
Another goal of the invention is, by the detection of locking protecting device with automatically reset, to optimize control accuracy and the automatization level of upper wheel rim shaft locking and release, thereby improve the whole efficiency of corresponding detection.
For achieving the above object, described tyre tester principal shaft locking protective device mainly includes:
Along main shaft radial distribution and for clamping the fixture block of upper wheel rim axle, difference with the prior art part is,
Axially be provided with several bearing pins along main shaft,
On fixture block end face, be axially provided with deep gouge along main shaft, in fixture block locking, when wheel rim axle, the free end of bearing pin is inserted in deep gouge;
Be provided with the detecting device changing along driver and the test pin shaft position of the variation of main shaft axial location for controlling bearing pin at main shaft sidepiece.
As above-mentioned basic scheme, only work as fixture block and upper wheel rim axle under locking state, bearing pin could coordinate and then play restriction fixture block and keep the locking state for upper wheel rim axle with deep gouge.
Driver can change and control moving direction and the position location of lock shaft, and in the time of upper wheel rim shaft locking, bearing pin inserts in deep gouge; And in the time that fixture block discharges upper wheel rim axle, need first control bearing pin to exit from deep gouge, to allow fixture block to move radially along main shaft, the groove (or screw thread) between fixture block and upper wheel rim axle no longer coordinates, and upper wheel rim axle can detach from main shaft.
Be provided with detecting device at main shaft sidepiece, can be used for detecting the free end of bearing pin with respect to the change in location of fixture block, correspondingly judging whether upper wheel rim axle is locked, whether lock and put in place.Solve air pressure and detect the problem that can not reflect truly fixture block physical location, accurate location information by physical construction (being bearing pin) is (with respect to fixture block, be closely against fixture block end face or insert in the deep gouge of fixture block), whether feed back wheel rim axle in locking state, and then tire is inflated, prevent from, because cylinder valve block is malfunctioning or control source of the gas and close and cause locking malfunctioning, equipment and operator safety being caused to serious harm.
Insert in the deep gouge of fixture block or detach from deep gouge for controlling more accurately bearing pin, and improving several bearing pins along the axially movable synchronism of main shaft, consistance, the further improvement project that can take is,
The stiff end of described bearing pin is connected in a terminal pad, and the output terminal of driver connects a control lever;
The direction moving back and forth along bearing pin, within the projection of control lever end is positioned at terminal pad.
Synchronously drive several bearing pins by terminal pad, by driver drives control lever, depress or raise terminal pad by control lever, to drive bearing pin insert or detach in the deep gouge of fixture block.
Possess enough strength for optimizing when bearing pin inserts deep gouge, to guarantee that bearing pin free end can fully insert or detach deep gouge, described bearing pin can be arranged to the axial fixed block inside of main shaft, bearing pin outer cover is provided with spring.
When the free end of bearing pin detaches in process from deep gouge, when fixture block discharges upper wheel rim axle (groove or screw thread between fixture block and upper wheel rim axle no longer coordinate), control lever is depressed or is raised in terminal pad process, and spring is compressed with savings energy; And insert in deep gouge at the free end of bearing pin, when fixture block clamps and locks wheel rim axle (groove or the screw thread between fixture block and upper wheel rim axle cooperatively interacts, interlock), rely on the reseting elasticity of spring and provide enough strength fully to insert to bearing pin, and possess enough restraints and be unexpectedly separated with upper wheel rim axle to prevent that fixture block is loosening.
Comparatively preferably that described detecting device is one group of symmetrically arranged optoelectronic switch with the structure choice becoming more meticulous.
Based on the architecture advances of above-mentioned design concept and principal shaft locking protective device, the present invention also can realize the guard method of following tyre tester principal shaft locking simultaneously:
Upper wheel rim axle is along in vertical insertion main shaft, and fixture block radially clamps to lock wheel rim axle,
In the time that upper wheel rim axle is locked, the free end of bearing pin is inserted in the deep gouge of fixture block end face, radially clamps the state of upper wheel rim axle to limit fixture block;
In the time that the free end of bearing pin exits from deep gouge, fixture block can move radially and discharge upper wheel rim axle along main shaft.
Control particularly step and refinement supplementary as follows,
The stiff end of several bearing pins is all installed on to terminal pad, and bearing pin is synchronous along the axial movement of main shaft; By the axial moving direction of control lever control linkage rim main shaft.
On fixture block radially clamps and locks, in the process of wheel rim axle, rely on the reseting elasticity of spring, the free end of bearing pin is inserted into deep gouge from the end face of fixture block.
By the optoelectronic switch of main shaft both sides, detect terminal pad along the axial relative position of main shaft, to judge whether upper wheel rim axle is locked or discharges.
As mentioned above, the advantage that tyre tester principal shaft locking protective device of the present invention and method thereof have is:
1, by the detection of mechanical protection mechanism and relative position thereof; can either detect exactly wheel rim axle and whether be locked and effectively avoid because gas path component is malfunctioning, air pressure reduces or source of the gas is surprisingly closed the locking Its Failures causing, thereby play synthetically, all sidedly safety protection function.
2, all can realize robotization to the detection of locking protecting device and the control that resets, thereby correspondingly improve gas circuit level of control and accuracy, improve precision and efficiency that tire bulk testing detects.
Accompanying drawing explanation
Now the present invention is described further by reference to the accompanying drawings:
Fig. 1 is that prior art is used wheel rim shaft locking structural representation;
Fig. 2 is the schematic diagram that uses principal shaft locking protective device of the present invention and method thereof;
Fig. 3 be in Fig. 2 C-C to diagrammatic cross-section;
Fig. 4 is released the schematic diagram under state with respect to Fig. 2 at upper wheel rim axle;
As shown in Figure 1, main shaft part 20, locking fixture block 30, upper wheel rim axial region 40, cylinder 50;
As shown in Figures 2 to 4, upper wheel rim axle 1, fixture block 2, main shaft 3, bearing pin 4, fixed block 5, spring 6, terminal pad 7, locking cylinder 8, driver 9, control lever 10, deep gouge 11, detecting device 12.
Embodiment
Along main shaft 3 radial distribution and for clamping the fixture block 2 of upper wheel rim axle 1, drive fixture block 2 to implement locking or the release of upper wheel rim axle 1 by locking cylinder 8;
Axially be provided with 4 bearing pins 4 along main shaft 3, each bearing pin 4 is arranged at axial fixed block 5 inside of main shaft 3, is provided with spring 6 in bearing pin 4 outer cover;
On fixture block 2 end faces, be axially provided with deep gouge 11 along main shaft 3, in fixture block 2 lockings, when wheel rim axle 1, the free end of bearing pin 4 is inserted in deep gouge 11; Discharge after wheel rim axle 1 at fixture block 2, the free end of bearing pin 4 is closely against the lower surface of fixture block 2;
The stiff end of 4 bearing pins 4 is connected in a terminal pad 7;
Be provided with at main shaft 3 sidepieces, for control the driver 9 that bearing pin 4 changes along main shaft 3 axial locations and detect that a group of bearing pin 4 change in location is symmetrically arranged, optoelectronic switch that detection signal can correlation;
Can implement the guard method of following tyre tester principal shaft locking based on above-mentioned principal shaft locking protective device:
Upper wheel rim axle 1 is along in vertical insertion main shaft 3, and fixture block 2 radially clamps to lock wheel rim axle 1,
The stiff end of several bearing pins 4 is all installed on to terminal pad 7, and bearing pin 4 is synchronous along the axial movement of main shaft 3; By control lever 10 control linkage dishes 7 along the axial moving direction of main shaft 3;
In the time that upper wheel rim axle 1 is locked, rely on the reseting elasticity of spring 6, the free end of bearing pin 4 is inserted into deep gouge 11 from the end face of fixture block 2, radially clamps the state of wheel rim axle 1 to limit fixture block 2;
In the time that the free end of bearing pin 4 exits from deep gouge 11, fixture block 2 can move radially and discharge upper wheel rim axle 1 along main shaft 3;
By the optoelectronic switch of main shaft 3 both sides, detect terminal pad 7 along the axial relative position of main shaft 3, to judge whether upper wheel rim axle 1 is locked or discharges.
Concrete control procedure is:
Locking process
The output shaft of driver 9 is retracted, and to drive bearing pin 4 to decline by terminal pad 7, fixture block 2 extends radially out to lock with upper wheel rim axle 1 along main shaft 3 under the effect of locking cylinder 8;
The output shaft of driver 9 stretches out, and bearing pin 4 bounces back in the deep gouge 11 of fixture block 2 under the effect of spring 6.
The optoelectronic switch that is installed on terminal pad 7 both sides detects that terminal pad 7 risings put in place, i.e. upper wheel rim axle 1 locking of judgement puts in place.
Release process
The output shaft of driver 9 is retracted, and to drive bearing pin 4 to decline by terminal pad 7, fixture block 2 radially retracts to discharge wheel rim axle 1 along main shaft 3 under the effect of locking cylinder 8;
The output shaft of driver 9 stretches out, and bearing pin 4 bounces back into the lower surface of fixture block 2 under the effect of spring 6;
The optoelectronic switch that is installed on terminal pad 7 both sides detects that terminal pad 7 declines put in place, i.e. the upper wheel rim axle 1 of judgement is fully discharged and puts in place.
Claims (8)
1. a tyre tester principal shaft locking protective device, comprises along main shaft (3) radial distribution and for clamping the fixture block (2) of upper wheel rim axle (1), it is characterized in that:
Axially be provided with several bearing pins (4) along main shaft (3),
On fixture block (2) end face, be axially provided with deep gouge (11) along main shaft (3), in fixture block (2) locking, when wheel rim axle (1), the free end of bearing pin (4) is inserted in deep gouge (11);
Be provided with at main shaft (3) sidepiece, for controlling bearing pin (4) along the driver (9) of main shaft (3) axial location variation and the detecting device (12) of detection bearing pin (4) change in location.
2. tyre tester principal shaft locking protective device according to claim 1, is characterized in that: the stiff end of described bearing pin (4) is connected in a terminal pad (7), the output terminal of driver (9) connects a control lever (10);
The direction moving back and forth along bearing pin (4), within the projection of control lever (10) end is positioned at terminal pad (7).
3. tyre tester principal shaft locking protective device according to claim 2, is characterized in that: described bearing pin (4) is arranged at axial fixed block (5) inside of main shaft (3), and bearing pin (4) outer cover is provided with spring (6).
4. according to the tyre tester principal shaft locking protective device described in claim 1,2 or 3, it is characterized in that: described detecting device (12) is one group of symmetrically arranged optoelectronic switch.
5. the method for tyre tester principal shaft locking protective device as described in any claim in claim 1 to 4, upper wheel rim axle (1) is along in vertical insertion main shaft (3), fixture block (2) radially clamps to lock wheel rim axle (1), it is characterized in that: in the time that upper wheel rim axle (1) is locked, the free end of bearing pin (4) is inserted in the deep gouge (11) of fixture block (2) end face, radially clamps the state of wheel rim axle (1) to limit fixture block (2);
In the time that the free end of bearing pin (4) exits from deep gouge (11), fixture block (2) can move radially and discharge upper wheel rim axle (1) along main shaft (3).
6. tyre tester principal shaft locking according to claim 5 guard method, is characterized in that: the stiff end of several bearing pins (4) is all installed on to terminal pad (7), and bearing pin (4) is synchronous along the axial movement of main shaft (3);
By control lever (10) control linkage dish (7) along the axial moving direction of main shaft (3).
7. according to the tyre tester principal shaft locking guard method described in claim 5 or 6; it is characterized in that: radially clamp and lock in the process of upper wheel rim axle (1) at fixture block (2); the reseting elasticity that relies on spring (6), the free end of bearing pin (4) is inserted into deep gouge (11) from the end face of fixture block (2).
8. tyre tester principal shaft locking protective device according to claim 7; it is characterized in that: by the optoelectronic switch of main shaft (3) both sides; detect terminal pad (7) along the axial relative position of main shaft (3), to judge whether upper wheel rim axle (1) is locked or discharges.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210571166.XA CN103900761A (en) | 2012-12-24 | 2012-12-24 | Main shaft locking protective device of tire testing machine and method thereof |
| PCT/CN2013/071273 WO2014101332A1 (en) | 2012-12-24 | 2013-02-01 | Main shaft locking protection device for tire tester and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210571166.XA CN103900761A (en) | 2012-12-24 | 2012-12-24 | Main shaft locking protective device of tire testing machine and method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103900761A true CN103900761A (en) | 2014-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210571166.XA Pending CN103900761A (en) | 2012-12-24 | 2012-12-24 | Main shaft locking protective device of tire testing machine and method thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103900761A (en) |
| WO (1) | WO2014101332A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000241300A (en) * | 1999-02-17 | 2000-09-08 | Kokusai Keisokki Kk | Relative positional shift preventing system of rotary part in uniformity test equipment |
| CN1129780C (en) * | 1997-12-16 | 2003-12-03 | 国际计测器株式会社 | Device for measuring tyre uniformity and/or dynamic balance |
| CN2888429Y (en) * | 2005-12-29 | 2007-04-11 | 中国航空工业第一集团公司北京航空制造工程研究所 | Sealing structure for positioning and locking device of tire dynamic balance testing machine |
| CN2888427Y (en) * | 2005-12-29 | 2007-04-11 | 中国航空工业第一集团公司北京航空制造工程研究所 | Locking block driving mechanism of tire positioning and locking device of tire dynamic balance testing machine |
| CN203024932U (en) * | 2012-12-24 | 2013-06-26 | 软控股份有限公司 | Locking protector for spindle of tyre tester |
-
2012
- 2012-12-24 CN CN201210571166.XA patent/CN103900761A/en active Pending
-
2013
- 2013-02-01 WO PCT/CN2013/071273 patent/WO2014101332A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1129780C (en) * | 1997-12-16 | 2003-12-03 | 国际计测器株式会社 | Device for measuring tyre uniformity and/or dynamic balance |
| JP2000241300A (en) * | 1999-02-17 | 2000-09-08 | Kokusai Keisokki Kk | Relative positional shift preventing system of rotary part in uniformity test equipment |
| CN2888429Y (en) * | 2005-12-29 | 2007-04-11 | 中国航空工业第一集团公司北京航空制造工程研究所 | Sealing structure for positioning and locking device of tire dynamic balance testing machine |
| CN2888427Y (en) * | 2005-12-29 | 2007-04-11 | 中国航空工业第一集团公司北京航空制造工程研究所 | Locking block driving mechanism of tire positioning and locking device of tire dynamic balance testing machine |
| CN203024932U (en) * | 2012-12-24 | 2013-06-26 | 软控股份有限公司 | Locking protector for spindle of tyre tester |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014101332A1 (en) | 2014-07-03 |
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Application publication date: 20140702 |