CN203024932U - Locking protector for spindle of tyre tester - Google Patents
Locking protector for spindle of tyre tester Download PDFInfo
- Publication number
- CN203024932U CN203024932U CN 201220725044 CN201220725044U CN203024932U CN 203024932 U CN203024932 U CN 203024932U CN 201220725044 CN201220725044 CN 201220725044 CN 201220725044 U CN201220725044 U CN 201220725044U CN 203024932 U CN203024932 U CN 203024932U
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- Prior art keywords
- locking
- bearing pin
- spindle
- main shaft
- fixture block
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Abstract
The utility model relates to a locking protector for a spindle of a tyre tester, which is a mechanism for performing in-position detection and further mechanical protection on a locking fixture block, and is specifically used for solving the problem of locking failure by compulsively limiting the locking state of the fixture block for preventing failure of gas circuit parts, air pressure reduction or unexpected close of an air source so as to effectively protect the use of the equipment and the safety of operators. The spindle locking protector comprises fixture blocks which are used for clamping upper rim shafts and are distributed along the spindle in a radial direction, a plurality of pin rolls are arranged axially along the spindle, setting tanks are arranged axially along the spindle and on the end surfaces of the fixture blocks, the freed ends of the pin rolls are inserted into the setting tanks when the upper rim shafts are locked by the fixture blocks, and a driver for controlling the pin rolls to change along the axial position of the spindle and a detector for detecting the position change of the pin rolls are arranged at the side of the spindle. Only when the fixture blocks and the upper rim shafts are locked, the pin rolls can be matched with the setting tanks so as to play a role in limiting the fixture blocks to keep the locking state of the upper rim shafts.
Description
Technical field
The utility model relates to a kind of principal shaft locking protective device that is applied to tyre tester (as dynamic balancer, evenness tester etc.), belongs to rubber manufacturing machinery and industrial automation.
Background technology
In the technological process of making 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 making process for tire.
On dynamic balancer, usually need to be detected tire and be installed between upper and lower wheel rim, on this moment, the wheel rim axle is inserted in main shaft and is locked, and then inflate, High Rotation Speed and 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 the axle phenomenon and form for the brute force impact partly of upper wheel rim, and equipment is caused damage.
In addition, upper wheel rim axle with principal shaft locking after, tire is under inflated condition, if it is malfunctioning principal shaft locking cylinder valve block to occur controlling, perhaps 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 with upper drop center portion and collide.
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 and be air pressure and detect can not reflect the physical location of locking fixture block (30) truly.If upper wheel rim axial region (40) inserts the malposition of main shaft part (20), locking fixture block (30) can not correctly coordinate with groove (or screw thread) between upper wheel rim axial region (40), and air pressure detection display main shaft part (20) is locking state, and tyre inflating will cause and collapse the axle phenomenon this moment.
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 the locking process.In case it is not in place just may be because of the cylinder valve block malfunctioning or control source of the gas and close and cause locking malfunctioning wheel rim axial region (40) locking to occur, and equipment and operator safety are caused serious harm.
In view of this, the special present patent application that proposes.
The utility model content
Tyre tester principal shaft locking protective device described in the utility model; its purpose is to address the above problem and proceeds to the position for the locking fixture block and detect and further mechanical protection mechanism; namely force to limit the locking state of fixture block and prevent that, air pressure malfunctioning because of gas path component from reducing or the source of the gas accident is closed the locking Its Failures that causes, thereby protection equipment uses and operating personnel's safety effectively.
Another purpose of design is, by to the detection of locking protecting device with automatically reset, optimizing control accuracy and the automatization level of upper wheel rim shaft locking and release, thereby improve the whole efficiency of corresponding detection.
For realizing above-mentioned purpose of design, described tyre tester principal shaft locking protective device mainly includes:
Along the main shaft radial distribution and be used for the fixture block of wheel rim axle in clamping, the difference with the prior art part is,
Axially be provided with several bearing pins along main shaft,
On the fixture block end face, axially be provided with deep gouge along main shaft, during the wheel rim axle, the free end of bearing pin is inserted in deep gouge in fixture block locking;
Be provided with at the main shaft sidepiece, be used for controlling bearing pin along the driver of main shaft axial location variation and the detecting device of test pin shaft position variation.
As above-mentioned basic scheme, only to work as fixture block and upper wheel rim axle and be under locking state, bearing pin could coordinate and then play the maintenance of restriction fixture block for the locking state of upper wheel rim axle with deep gouge.
Driver can change and control moving direction and the position location of lock shaft, and namely bearing pin inserts in deep gouge when upper wheel rim shaft locking; And when fixture block discharges the wheel rim axle, need first control bearing pin to withdraw from from deep gouge, moving radially along main shaft to allow fixture block, fixture block no longer coordinates with groove (or screw thread) between upper wheel rim axle, and upper wheel rim axle can detach from main shaft.
Be provided with detecting device at the main shaft sidepiece, can be used for detecting the free end of bearing pin with respect to the change in location of fixture block, whether be locked, whether lock and put in place with the upper wheel rim axle of judgement correspondingly.Namely solve air pressure and detect the problem that can not reflect truly the fixture block physical location, accurate location information by physical construction (being bearing pin) is (namely with respect to fixture block, be closely against the fixture block end face or insert in the deep gouge of fixture block), feed back the wheel rim axle and whether be in locking state, and then tire is inflated, prevent malfunctioning because of the cylinder valve block or control source of the gas close cause locking malfunctioning, to equipment and operator safety harm.
Insert in the deep gouge of fixture block for controlling more accurately bearing pin or detach from deep gouge, 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;
Along the direction that bearing pin moves back and forth, within the projection of control lever end is positioned at terminal pad.
Namely synchronously drive several bearing pins by terminal pad, by the driver drives control lever, depress or raise terminal pad by control lever, insert or detach in the deep gouge of fixture block to drive bearing pin.
Possess enough strength when bearing pin inserts deep gouge for optimizing, can fully insert or detach deep gouge to guarantee the bearing pin free end, described bearing pin can be arranged at the axial fixed block of main shaft inner, the bearing pin outer cover is provided with spring.
When the free end of bearing pin detaches from deep gouge in process, namely fixture block discharges upper wheel rim axle when (fixture block no longer coordinates with groove or screw thread between upper wheel rim axle), and control lever is depressed or raised in the terminal pad process, and spring is compressed to put aside energy; And in the free end of bearing pin inserts deep gouge, when fixture block clamping and the upper wheel rim axle of locking (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 inserting to bearing pin, and possess enough restraints and unexpectedly be separated with upper wheel rim axle to prevent that fixture block is loosening.
Comparatively preferred structure choice with becoming more meticulous is that described detecting device is one group of symmetrically arranged optoelectronic switch.
As mentioned above, the advantage that has of the utility model tyre tester principal shaft locking protective device is:
1, pass through the detection of mechanical protection mechanism and relative position thereof; can either detect exactly the wheel rim axle and whether be locked and effectively avoid, air pressure malfunctioning because of gas path component to reduce or the source of the gas accident is closed the locking Its Failures that causes, thereby play synthetically, all sidedly safety protection function.
2, all can realize robotization to the detection of locking protecting device with the control that resets, thereby correspondingly improve gas circuit control level and accuracy, improve precision and efficient that the tire bulk testing detects.
Description of drawings
Now by reference to the accompanying drawings the utility model is described further:
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 described in the utility model and method thereof;
Fig. 3 be in Fig. 2 C-C to diagrammatic cross-section;
Fig. 4 is released 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 extremely shown in Figure 4 in Fig. 2, 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
Also be used for the fixture block 2 of wheel rim axle 1 in clamping along main shaft 3 radial distribution, drive by locking cylinder 8 locking or the releases that fixture blocks 2 are implemented upper wheel rim axles 1;
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, axially be provided with deep gouge 11 along main shaft 3, during wheel rim axle 1, the free end of bearing pin 4 is inserted in deep gouge 11 in fixture block 2 lockings; After fixture block 2 discharged wheel rim axle 1, the free end of bearing pin 4 was 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, be used for to 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, fixture block 2 radially clamping locking upper wheel rim axle 1,
The stiff end of several bearing pins 4 all is installed on 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;
When 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, to limit the radially state of wheel rim axle 1 in clamping of fixture block 2;
When the free end of bearing pin 4 withdrawed from 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, whether be locked or discharge to judge upper wheel rim axle 1.
Concrete control procedure is:
The locking process
The output shaft of driver 9 is retracted, and descends to drive bearing pin 4 by terminal pad 7, and 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 under the effect of spring 6 in the deep gouge 11 of fixture block 2.
The optoelectronic switch that is installed on terminal pad 7 both sides detects terminal pad 7 and rises and 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 descends to drive bearing pin 4 by terminal pad 7, and fixture block 2 is radially retracting 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 terminal pad 7 and descends and put in place, i.e. the upper wheel rim axle 1 of judgement has fully been discharged to put in place.
Claims (4)
1. a tyre tester principal shaft locking protective device, comprise along main shaft (3) radial distribution also being used for the fixture block (2) of wheel rim axle (1) in clamping, it is characterized in that:
Axially be provided with several bearing pins (4) along main shaft (3),
On fixture block (2) end face, axially be provided with deep gouge (11) along main shaft (3), during wheel rim axle (1), the free end of bearing pin (4) is inserted in deep gouge (11) in fixture block (2) locking;
Be provided with at main shaft (3) sidepiece, be used for controlling bearing pin (4) along the driver (9) of main shaft (3) axial location variation and the detecting device (12) that detects bearing pin (4) change in location.
2. tyre tester principal shaft locking protective device according to claim 1, it is characterized in that: the stiff end of described bearing pin (4) is connected in a terminal pad (7), and the output terminal of driver (9) connects a control lever (10);
Along the direction that bearing pin (4) moves back and forth, 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 main shaft (3) axial fixed block (5) inside, and bearing pin (4) outer cover is provided with spring (6).
4. according to claim 1,2 or 3 described tyre tester principal shaft locking protective devices, it is characterized in that: described detecting device (12) is one group of symmetrically arranged optoelectronic switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220725044 CN203024932U (en) | 2012-12-24 | 2012-12-24 | Locking protector for spindle of tyre tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220725044 CN203024932U (en) | 2012-12-24 | 2012-12-24 | Locking protector for spindle of tyre tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203024932U true CN203024932U (en) | 2013-06-26 |
Family
ID=48648911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220725044 Expired - Lifetime CN203024932U (en) | 2012-12-24 | 2012-12-24 | Locking protector for spindle of tyre tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203024932U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103900761A (en) * | 2012-12-24 | 2014-07-02 | 软控股份有限公司 | Main shaft locking protective device of tire testing machine and method thereof |
-
2012
- 2012-12-24 CN CN 201220725044 patent/CN203024932U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103900761A (en) * | 2012-12-24 | 2014-07-02 | 软控股份有限公司 | Main shaft locking protective device of tire testing machine and method thereof |
| WO2014101332A1 (en) * | 2012-12-24 | 2014-07-03 | Yuan Zhongxue | Main shaft locking protection device for tire tester and method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130626 |