CN202267595U - Torque testing device of tension wheel - Google Patents
Torque testing device of tension wheel Download PDFInfo
- Publication number
- CN202267595U CN202267595U CN2011202898995U CN201120289899U CN202267595U CN 202267595 U CN202267595 U CN 202267595U CN 2011202898995 U CN2011202898995 U CN 2011202898995U CN 201120289899 U CN201120289899 U CN 201120289899U CN 202267595 U CN202267595 U CN 202267595U
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- stretching pulley
- depression bar
- testing apparatus
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- torsion
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Abstract
The utility model provides a torque testing device of tension wheel, which belongs to the technical field of machinery and solves the problem that the current tension wheels cannot be tested; the torque testing device disclosed by this utility model comprises a test board, wherein a locating piece capable of locating a torsion spring support sleeve in a tension wheel is arranged on the test board; the test board is fixedly connected with a drive structure capable of driving the locating piece to rotate; the test board is also provided with a sensor moment arm which is located above the locating piece and capable of vertical lifting; after the sensor moment arm falls, the sensor moment arm is used for blocking off a fixing frame of the tension wheel; the sensor moment arm is connected with a torque sensor; and both the drive structure and the torque sensor are connected with an electric appliance control case. The torque testing device disclosed by this utility model can test the torque of tension wheel; in addition, the testing precision is high.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of stretching pulley proving installation, particularly a kind of stretching pulley torsion-testing apparatus.
Background technology
Stretching pulley is to be used for a kind of parts that the tensioning degree of driving-belt is controlled, and it is to be assemblied on the body of engine, and its wheel face is resisted against on the outside surface of driving-belt.The structure of stretching pulley comprises fixed mount, torsion spring and torsion spring support set; The torsion spring support set sheathed with fixed mount in; Torsion spring is between torsion spring support set and fixed mount, and torsion spring provides elastic force to make the torsion spring support set after rotation, can reset, and torsion spring support set center is provided with connecting hole; After stretching pulley is assemblied on the body; This connecting hole is socketed in the limited post set on the body, and the outer end of fixed mount is provided with fixed orifice, and it is that center rotation torsion spring support set is regulated the size of tensile force with this with the fixed orifice that the back is installed.
Relative rigging position between each parts of stretching pulley has strict demand; Otherwise can influence the serviceable life and the degree of regulation of stretching pulley; Therefore people have designed the device of various test stretching pulley; Some has also applied for patent, and for example the Chinese patent documents and materials disclose a kind of stretching pulley pick-up unit [application number: 200820303364.7; Granted publication number: CN201331427Y], it comprises test board, be provided with on the test board be used for stretching pulley on the punch that matches of mounting hole; Be provided with on the test board be used for stretching pulley on the column that matches of fixed orifice; Relative position between column and the punch and the fixed orifice on the stretching pulley and the relative position between the mounting hole are corresponding, and test board is provided with the gauge of several cylinders shape, and the external diameter of each gauge is different; Also be provided with support on the test board, support is provided with indicating gauge.
Whether above-mentioned stretching pulley pick-up unit meets dimensional requirement through the size that gauge detects stretching pulley, each item height that indicating gauge is used to detect the eccentric wheel height overall, detect fixed mount, detects parameters such as eccentric connecting hole depth dimensions.But this stretching pulley pick-up unit all just detects the parameter of stretching pulley physical size; Can't test the moment of torsion of stretching pulley; Can't confirm stretching pulley duty in actual use, therefore the stretching pulley torsion-testing all is to lean on conventional torque tester to test at present, and the conventional torque tester clamping time is long, test speed is slow, operation is comparatively loaded down with trivial details; And can not simulate the installment state of stretching pulley at the engine place; Also need reply detection to stretching pulley, not only testing cost is high, and measuring accuracy is also lower.
Summary of the invention
The purpose of the utility model is to the problems referred to above that exist in the prior art, and the stretching pulley torsion-testing apparatus that a kind of measuring accuracy is high, the test duration is short is provided.
The purpose of the utility model can realize through following technical proposal: a kind of stretching pulley torsion-testing apparatus; Comprise test board; It is characterized in that described test board is provided with the keeper that is used for stretching pulley torsion spring support set location, and test board is fixed with the Drive Structure that can drive the keeper rotation; Also be provided with on the described test board be positioned on the described keeper can VTOL (vertical take off and landing) the sensor arm of force; This sensor arm of force is used to keep out the fixed mount of stretching pulley after the sensor arm of force descends, and the described sensor arm of force is connected with torque sensor, and described Drive Structure and torque sensor all are connected in electric appliance control box.
During the work of this stretching pulley torsion-testing apparatus, stretching pulley is placed on the keeper, keeper is located the torsion spring support set in the stretching pulley; The sensor arm of force descends afterwards, and Drive Structure drives keeper and rotates, and stretching pulley rotates with keeper; When the fixed mount of stretching pulley turns to when being resisted against the sensor arm of force, the torsion spring support set that keeper drives stretching pulley is rotated further, and stressed, the torque sensor of sensor arm of force this moment begins the acquisition angles value; After arriving some angles of setting, torque sensor is gathered the input torque data, and Drive Structure is continuous running in the data acquisition; After it reached the maximum angle of setting, Drive Structure drove keeper, the counter-rotating of torsion spring support set, with after should arriving some angles of setting; Torque sensor is gathered output torque numerical value; After data acquisition was accomplished, Drive Structure remained in operation, and resets until keeper.Angle value, input torque numerical value and output torque numerical value that electric appliance control box record and calculated torque sensor acquisition arrive can drive curve from the torsional forces value that electric appliance control box obtain each stage stretching pulley at last, make things convenient for test man's analysis.
In above-mentioned stretching pulley torsion-testing apparatus, described Drive Structure comprises motor, speed reduction unit, and the motor shaft of described motor is connected with the input end of speed reduction unit mutually, and the output terminal of described speed reduction unit is connected with keeper mutually.
In above-mentioned stretching pulley torsion-testing apparatus, described motor is a stepper motor, and described speed reduction unit is a planetary reducer.The rotating speed of stepper motor is easy to control, and the structure of planetary reducer is a prior art, does not do at this and gives unnecessary details, the good operating stability of planetary reducer, long service life.
In above-mentioned stretching pulley torsion-testing apparatus, described keeper comprises rotating disk, and the center of turntable place is fixed with backstay one, and rotating disk is fixed with backstay two near the edge.Torsion spring support set center has connecting hole in the stretching pulley, and backstay one penetrates in the connecting hole, and backstay two is arranged on the torsion spring support set, has so just realized the location to the torsion spring support set, and the rotation of rotating disk can drive the rotation of torsion spring support set.
In above-mentioned stretching pulley torsion-testing apparatus; Be fixed with positioning seat on the described test board; Be provided with locating sleeve between described positioning seat and the rotating disk; Described locating sleeve and rotating disk be connected and locating sleeve and positioning seat between be provided with several bearings, the output terminal of described speed reduction unit is positioned at locating sleeve and is connected with locating sleeve.The precision of positioning seat and locating sleeve self is higher, can improve the precision of testing through positioning seat and locating sleeve are set, and the influence that the friction force that weakened is set of bearing, makes measuring accuracy higher.
In above-mentioned stretching pulley torsion-testing apparatus, be fixed with the hydraulic cylinder that is positioned at the keeper top on the described test board, the piston rod of described hydraulic cylinder is connected vertically downward and with the sensor arm of force mutually.
In above-mentioned stretching pulley torsion-testing apparatus; The piston rod end of described hydraulic cylinder is fixed with the depression bar assembly with a depression bar; Described depression bar is used for penetrating the connecting hole of stretching pulley torsion spring support set when piston rod stretches out the decline of the drive sensor arm of force, and described depression bar is fixed with pressure transducer.
Depression bar can position the top of the connecting hole of torsion spring support set in the stretching pulley; Make the accurate positioning of torsion spring support set in the stretching pulley like this; Depression bar is fixed with pressure transducer and links with electric appliance control box; Pressure transducer detects force value that depression bar receives converses torsion spring support set place again through electric appliance control box screw-down torque, the force value of control hydraulic cylinder, and depression bar is located in and just can simulates the installment state of stretching pulley when being installed on the engine through screw in the connecting hole of torsion spring support set like this; Realize the torsion-testing of stretching pulley under installment state, made measuring accuracy high.
In above-mentioned stretching pulley torsion-testing apparatus; Described depression bar assembly comprises depression bar seat, depression bar cover; The end of described depression bar seat and piston rod is connected; Described depression bar cover is placed in the depression bar seat and the bottom centre place of depression bar cover is fixed with depression bar, also is fixed with several bearings between described depression bar cover and the depression bar seat.The precision of depression bar seat and depression bar cover self is higher, can improve the precision of test through depression bar seat and depression bar cover is set, and the influence that the friction force that weakened is set of bearing, makes measuring accuracy higher.
In above-mentioned stretching pulley torsion-testing apparatus; The described sensor arm of force comprises cross bar, montant; Described cross bar horizontal arrangement and piston rod fixes and cross bar on have a row threaded hole, described montant is connected with a wherein threaded hole of cross bar and the angle of montant and cross bar is 90 degree.Stretching pulley to different styles; The arm of force of test usefulness is apart from difference, and this device can change the arm of force distance of testing usefulness through threaded hole connections different on montant and the cross bar, need not to make again the sensor arm of force like this; Practice thrift cost, and made the applied widely of the sensor arm of force.
In above-mentioned stretching pulley torsion-testing apparatus, described electric appliance control box comprises casing, PLC controller, A/D modular converter and display screen, and described PLC controller, A/D modular converter display screen all are installed in the casing.PLC controller, A/D modular converter and display screen can be bought on market; Just can use through debugging; Concrete structure is not done detailed description at this; The torque value of stretching pulley and angle can and calculate mean value of torque by PLC controller, A/D modular converter record, can observe the torsional forces value curvilinear figure of stretching pulley in torsion-testing intuitively through display screen, make things convenient for test man's record and observation.
Compared with prior art, a kind of stretching pulley torsion-testing apparatus of providing of the utility model has the following advantages:
1, this stretching pulley torsion-testing apparatus is realized the moment of torsion of stretching pulley is tested, and can really detect the quality problems of stretching pulley essence, has guaranteed the qualification rate that stretching pulley dispatches from the factory.
2, the automaticity of this stretching pulley torsion-testing apparatus is high, effectively reduces test man's labour intensity, and measuring accuracy is high and the test duration is short.
3, the setting of display screen in this stretching pulley torsion-testing apparatus makes the test man can observe the torsional forces value curvilinear figure of stretching pulley in torsion-testing intuitively, and record and observation are convenient.
4, this stretching pulley torsion-testing apparatus can be simulated the installment state of stretching pulley, and the stretching pulley torque condition is identical in actual use with stretching pulley, so the measuring accuracy of this device stretching pulley moment of torsion is very high.
Description of drawings
Fig. 1 is that the structure master of this stretching pulley torsion-testing apparatus looks synoptic diagram.
Fig. 2 is the structural representation of keeper in this stretching pulley torsion-testing apparatus.
Fig. 3 is the structural representation of the sensor arm of force in this stretching pulley torsion-testing apparatus.
Among the figure, 1, test board; 2, keeper; 2a, rotating disk; 2b, backstay one; 2c, backstay two; 3, the sensor arm of force; 3a, cross bar; 3a1, threaded hole; 3b, montant; 4, torque sensor; 5, electric appliance control box; 6, motor; 7, speed reduction unit; 8, positioning seat; 9, locating sleeve; 10, bearing; 11, hydraulic cylinder; 12, depression bar; 13, depression bar seat; 14, depression bar cover; 15, casing; 16, PLC controller; 17, A/D modular converter; 18, display screen; 19, pressure transducer.
Embodiment
Below be the specific embodiment of the utility model and combine accompanying drawing, the technical scheme of the utility model is done further to describe, but the utility model is not limited to these embodiment.
As shown in Figure 1, this stretching pulley torsion-testing apparatus comprises test board 1, and test board 1 is provided with the keeper 2 that is used for the torsion spring support set location of stretching pulley; As shown in Figure 2, keeper 2 comprises rotating disk 2a, and rotating disk 2a center is fixed with backstay one 2b; Rotating disk 2a is fixed with backstay two 2c near the edge; In order to improve the precision of test, be fixed with positioning seat 8 through bolt on the test board 1, be provided with locating sleeve 9 between positioning seat 8 and the rotating disk 2a; Locating sleeve 9 and rotating disk 2a be connected through bolt and locating sleeve 9 and positioning seat 8 between be provided with several bearings 10; Locating sleeve 9 is provided with two deep groove ball bearings with positioning seat 8 in the present embodiment, the flange of the outer ring of a deep groove ball bearing and locating sleeve 9 against, can reduce the friction force of locating sleeve 9 flange when rotation like this; The jacket wall of the outer ring of another deep groove ball bearing and locating sleeve 9 against, can reduce locating sleeve 9 friction force between jacket wall and the positioning seat 8 when rotating like this.
Test board 1 is fixed with and can drives the Drive Structure that keeper 2 rotates; Drive Structure comprises motor 6, speed reduction unit 7; The motor shaft of motor 6 is connected with the input end of speed reduction unit 7 mutually; The output terminal of speed reduction unit 7 is positioned at locating sleeve 9 and is connected with locating sleeve 9, and motor 6 is a stepper motor in the present embodiment, and speed reduction unit 7 is a planetary reducer.Be fixed with the hydraulic cylinder 11 that is positioned at keeper 2 tops on the test board 1, the piston rod of hydraulic cylinder 11 vertically downward and be fixed with the sensor arm of force 3, the sensor arm of force 3 is connected with torque sensor 4, Drive Structure and torque sensor 4 all are connected in electric appliance control box 5.As shown in Figure 3; The sensor arm of force 3 comprises cross bar 3a, montant 3b in the present embodiment; Cross bar 3a horizontal arrangement and piston rod fix and cross bar 3a on have a row threaded hole 3a1, montant 3b is connected with the wherein threaded hole 3a1 of cross bar 3a and the angle of montant 3b and cross bar 3a is 90 degree.Stretching pulley to different styles; The arm of force of test usefulness is apart from difference; This device is gone up different threaded hole 3a1 through montant 3b and cross bar 3a and is connected the arm of force distance that can change test usefulness; Need not like this to make the sensor arm of force 3 again, practiced thrift cost, and make the applied widely of the sensor arm of force 3.
In order to improve measuring accuracy; The piston rod end of hydraulic cylinder 11 is fixed with the depression bar assembly with a depression bar 12; Depression bar 12 is used for penetrating the connecting hole of stretching pulley torsion spring support set when piston rod stretches out 3 declines of the drive sensor arm of force; In actual the manufacturing, can roof pressure torsion spring support set in order to guarantee depression bar 12, depression bar 12 is fixed with pressure transducer 19.The depression bar assembly comprises depression bar seat 13, depression bar cover 14; Depression bar seat 13 is connected with the end of piston rod; Depression bar cover 14 is placed in the depression bar seat 13 and the bottom centre place of depression bar cover 14 is fixed with depression bar 12, also is fixed with several bearings 10 between depression bar cover 14 and the depression bar seat 13, is provided with two deep groove ball bearings between depression bar cover 14 and the depression bar seat 13 in the present embodiment; The flange of the outer ring of a deep groove ball bearing and depression bar cover 14 against; Can reduce the friction force of depression bar cover 14 flange when rotating like this, the jacket wall of the outer ring of another deep groove ball bearing and depression bar cover 14 against, can reduce depression bar cover 14 friction force between jacket wall and the depression bar seat 13 when rotation like this.
As shown in Figure 1, electric appliance control box 5 comprises casing 15, PLC controller 16, A/D modular converter 17 and display screen 18, and described PLC controller 16, A/D modular converter 17 display screens 18 all are installed in the casing 15.PLC controller 16, A/D modular converter 17 and display screen 18 can be bought on market; Just can use through debugging; Concrete structure is not done detailed description at this; The torque value of stretching pulley and angle can and calculate mean value of torque by PLC controller 16, A/D modular converter 17 records, can observe the torsional forces value curvilinear figure of stretching pulley in torsion-testing intuitively through display screen 18, make things convenient for test man's record and observation.
During the work of this stretching pulley torsion-testing apparatus; Stretching pulley is placed on the rotating disk 2a, and torsion spring support set center has connecting hole in the stretching pulley, and backstay one 2b penetrates in the connecting hole; Backstay two 2c are arranged on the torsion spring support set, have so just realized the location to the torsion spring support set.The piston rod of hydraulic cylinder 11 stretches out and drives 3 declines of the sensor arm of force afterwards; The connecting hole top that depression bar 12 penetrates torsion spring support set in the stretching pulley positions; Depression bar 12 is fixed with pressure transducer 19 and links with electric appliance control box 5; The force value that pressure transducer 19 detection depression bars 12 receive converses the screw-down torque at torsion spring support set place again through the PLC controller 16 in the electric appliance control box 5; Control the force value of hydraulic cylinder 11 again, depression bar 12 is located in and just can simulates the installment state of stretching pulley when being installed on the engine through screw in the connecting hole of torsion spring support set like this, has realized the torsion-testing of stretching pulley under installment state.Motor 6 drives the output terminal rotation of speed reduction unit 7 afterwards, and the output terminal of speed reduction unit 7 drives locating sleeve 9 and rotates together with rotating disk 2a, and stretching pulley rotates with keeper 2; When the fixed mount of stretching pulley turns to when being resisted against the sensor arm of force 3; The torsion spring support set that rotating disk 2a can drive stretching pulley is rotated further, this moment the sensor arm of force 3 stressed, torque sensor 4 beginning acquisition angles values, arrive some angles of setting after; Torque sensor 4 is gathered the input torque data; Drive Structure is continuous running in the data acquisition, and after its drive torsion spring support set reached the maximum angle of setting, Drive Structure drove keeper 2, the counter-rotating of torsion spring support set; With after should arriving some angles of setting; Torque sensor 4 is gathered output torque numerical value, and the data acquisition Drive Structure is continuous running, and last Drive Structure is rotated and resetted until keeper 2.The torque value of stretching pulley and angle can and calculate mean value of torque by PLC controller 16, A/D modular converter 17 records, can observe the torsional forces value curvilinear figure of stretching pulley in torsion-testing intuitively through display screen 18, make things convenient for test man's record and observation.Certainly in reality is made; Also be equiped with warning horn in the electric appliance control box 5; Be set with the operation torque numerical value of stretching pulley maximum, minimum through PLC controller 16; When stretching pulley its test peak torque in the torsion-testing process surpassed maximum working torque or test minimal torque less than minimum operation torque, the signal that warning horn receives PLC controller 16 produces reported to the police, and explains that this stretching pulley of testing is off quality.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from the spirit of the utility model or surmount the defined scope of appended claims.
Although this paper has used terms such as test board 1, keeper 2, rotating disk 2a, backstay one 2b, backstay two 2c, the sensor arm of force 3, cross bar 3a, threaded hole 3a1, montant 3b, torque sensor 4, electric appliance control box 5, motor 6, speed reduction unit 7, positioning seat 8, locating sleeve 9, bearing 10, hydraulic cylinder 11, depression bar 12, depression bar seat 13, depression bar cover 14, casing 15, PLC controller 16, A/D modular converter 17, display screen 18, pressure transducer 19 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain the essence of the utility model more easily; It all is contrary with the utility model spirit being construed to any additional restriction to them.
Claims (10)
1. stretching pulley torsion-testing apparatus; Comprise test board (1); It is characterized in that described test board (1) is provided with the keeper (2) that is used for stretching pulley torsion spring support set location, and test board (1) is fixed with the Drive Structure that can drive keeper (2) rotation; Also be provided with on the described test board (1) be positioned on the described keeper (2) can VTOL (vertical take off and landing) the sensor arm of force (3); This sensor arm of force (3) is used to keep out the fixed mount of stretching pulley after the sensor arm of force (3) descends, and the described sensor arm of force (3) is connected with torque sensor (4), and described Drive Structure and torque sensor (4) all are connected in electric appliance control box (5).
2. stretching pulley torsion-testing apparatus according to claim 1; It is characterized in that; Described Drive Structure comprises motor (6), speed reduction unit (7), and the motor shaft of described motor (6) is connected with the input end of speed reduction unit (7) mutually, and the output terminal of described speed reduction unit (7) is connected with keeper (2) mutually.
3. stretching pulley torsion-testing apparatus according to claim 2 is characterized in that, described motor (6) is a stepper motor, and described speed reduction unit (7) is a planetary reducer.
4. according to claim 1 or 2 or 3 described stretching pulley torsion-testing apparatus, it is characterized in that described keeper (2) comprises rotating disk (2a), rotating disk (2a) center is fixed with backstay one (2b), and rotating disk (2a) is fixed with backstay two (2c) near the edge.
5. stretching pulley torsion-testing apparatus according to claim 4; It is characterized in that; Be fixed with positioning seat (8) on the described test board (1); Be provided with locating sleeve (9) between described positioning seat (8) and the rotating disk (2a), described locating sleeve (9) and rotating disk (2a) be connected and locating sleeve (9) and positioning seat (8) between be provided with several bearings (10), the output terminal of described speed reduction unit (7) is positioned at locating sleeve (9) and is connected with locating sleeve (9).
6. according to claim 1 or 2 or 3 described stretching pulley torsion-testing apparatus; It is characterized in that; Be fixed with the hydraulic cylinder (11) that is positioned at keeper (2) top on the described test board (1), the piston rod of described hydraulic cylinder (11) is connected vertically downward and with the sensor arm of force (3) mutually.
7. stretching pulley torsion-testing apparatus according to claim 6; It is characterized in that; The piston rod end of described hydraulic cylinder (11) is fixed with the depression bar assembly with depression bar (12); Described depression bar (12) is used for penetrating the connecting hole of stretching pulley torsion spring support set when piston rod stretches out the drive sensor arm of force (3) decline, and described depression bar (12) is fixed with pressure transducer (19).
8. stretching pulley torsion-testing apparatus according to claim 7; It is characterized in that; Described depression bar assembly comprises depression bar seat (13), depression bar cover (14); Described depression bar seat (13) is connected with the end of piston rod, and described depression bar cover (14) is placed in the depression bar seat (13) and the bottom centre of depression bar cover (14) place is fixed with depression bar (12), also is fixed with several bearings (10) between described depression bar cover (14) and the depression bar seat (13).
9. according to claim 1 or 2 or 3 described stretching pulley torsion-testing apparatus; It is characterized in that; The described sensor arm of force (3) comprises cross bar (3a), montant (3b); Described cross bar (3a) horizontal arrangement and piston rod fixes and cross bar (3a) on have a row threaded hole (3a1), described montant (3b) is connected with a wherein threaded hole (3a1) of cross bar (3a) and the angle of montant (3b) and cross bar (3a) is 90 degree.
10. according to claim 1 or 2 or 3 described stretching pulley torsion-testing apparatus; It is characterized in that; Described electric appliance control box (5) comprises casing (15), PLC controller (16), A/D modular converter (17) and display screen (18), and described PLC controller (16), A/D modular converter (17) display screen (18) all are installed in the casing (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202898995U CN202267595U (en) | 2011-08-11 | 2011-08-11 | Torque testing device of tension wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202898995U CN202267595U (en) | 2011-08-11 | 2011-08-11 | Torque testing device of tension wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202267595U true CN202267595U (en) | 2012-06-06 |
Family
ID=46158385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202898995U Withdrawn - After Issue CN202267595U (en) | 2011-08-11 | 2011-08-11 | Torque testing device of tension wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202267595U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102288403A (en) * | 2011-08-11 | 2011-12-21 | 浙江宇太汽车零部件制造有限公司 | Tensioning wheel torque test device |
| CN103162882A (en) * | 2012-12-26 | 2013-06-19 | 苏州工业园区高登威科技有限公司 | Torque detecting device |
| CN106826978A (en) * | 2016-12-26 | 2017-06-13 | 重庆雨帝建材有限公司 | Waterproof building material cutting head |
-
2011
- 2011-08-11 CN CN2011202898995U patent/CN202267595U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102288403A (en) * | 2011-08-11 | 2011-12-21 | 浙江宇太汽车零部件制造有限公司 | Tensioning wheel torque test device |
| CN102288403B (en) * | 2011-08-11 | 2014-12-03 | 浙江宇太汽车零部件制造有限公司 | Tensioning wheel torque test device |
| CN103162882A (en) * | 2012-12-26 | 2013-06-19 | 苏州工业园区高登威科技有限公司 | Torque detecting device |
| CN106826978A (en) * | 2016-12-26 | 2017-06-13 | 重庆雨帝建材有限公司 | Waterproof building material cutting head |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120606 Effective date of abandoning: 20141203 |
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| RGAV | Abandon patent right to avoid regrant |