CN205780654U - Belt tension regulating device - Google Patents
Belt tension regulating device Download PDFInfo
- Publication number
- CN205780654U CN205780654U CN201620491636.5U CN201620491636U CN205780654U CN 205780654 U CN205780654 U CN 205780654U CN 201620491636 U CN201620491636 U CN 201620491636U CN 205780654 U CN205780654 U CN 205780654U
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- China
- Prior art keywords
- bracing frame
- plate
- movable block
- leading screw
- regulating device
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- Expired - Fee Related
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- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The utility model discloses belt tension regulating device, rotate including bracing frame, upper and lower two ends be arranged on bracing frame leading screw, for driving the first driving motor and movable block of screw turns；Bracing frame is provided with sensor base, and sensor base is provided with pressure transducer；The adjusting part being positioned at sensor base rear it is additionally provided with on bracing frame；It is fixed with belt pulley and second on movable block and drives motor；The middle part of movable block is provided through nut, and leading screw runs through nut；It is additionally provided with several leads on bracing frame, movable block is fixed with the latch assembly for clamping lead.In this utility model, by the setting of adjusting part, the intensity of pressure of pressure transducer can be acted on by accurate acquisition swivel plate, and regulate the tensioning degree of belt with this.
Description
Technical field
This utility model relates to impact test field, especially relates to belt tension regulating device.
Background technology
Compressor clutch is a power transmission between automobile engine and automobile air conditioner compressor, and the moment of torsion of automobile engine can be passed to vehicle compressor and thus drive the startup of vehicle compressor by it.Compressor clutch generally comprises band wheel assembly, coil assembly and drives disc assembly, and during application, solenoid is fixed on the shell of compressor, and driving dish is connected with the main shaft of compressor, and belt pulley is freely rotatably mounted on compressor head lid by bearing.When coil assembly leads to unidirectional current 12V or 24V, coil assembly produces stronger electromagnetic field, and the magnetic line of force of electromagnetic field makes belt pulley assembly by permeability magnetic material and drives disc assembly formation loop.Visible, the combination between driving dish and belt pulley and disengaging can be controlled by the electromagnetic attraction of solenoid, and thereby turn on or cut off the power transmission between electromotor and compressor.
Due to automobile in the process of moving, constantly can impact power to compressor clutch, if compressor clutch does not has qualified impact resistance ability, the most easily occur driving dish to loosen the problem even ruptured, so, the inefficacy of power transmission performance will be caused.Visible, good for ensureing compressor refrigeration, the detection to compressor clutch impact resistance is then particularly important.
At present, mainly use shock table to carry out the dynamic environmental test of product, specifically, detection belt sleeve is located on driving dish, belt is clashed into, with this test compression machine clutch adaptation ability to this shock environment by the shock pulse and impact energy simulating reality.Owing to the tightness of belt determines the precision of testing result, therefore, shock table need to be provided with the structure adjusting belt tension.But, in existing adjustment structure, driving means in working order time need to carry bigger load, so, be both unfavorable for adjusting the service life that the most also can shorten it.(when test, compressor clutch can not be carried out shock pulse and the impact energy simulation of reality, thus the compressor clutch adaptation ability to various shock environments cannot be accurately determined.It addition, simultaneously, also there will be the problems such as regulation inconvenience and complex operation).
Utility model content
The purpose of this utility model is the problems referred to above overcoming prior art, it is provided that belt tension regulating device, by the setting of adjusting part, can act on the intensity of pressure of pressure transducer by accurate acquisition swivel plate, and regulate the tensioning degree of belt with this；The carrying that can alleviate screw mandrel to movable block by coordinating between latch assembly with lead, thus the purpose of reach to increase the service life, improve operation stability and reliability.
The purpose of this utility model is achieved through the following technical solutions:
Belt tension regulating device, rotate including bracing frame, upper and lower two ends be arranged on bracing frame leading screw, for driving the first driving motor and movable block of screw turns；
Bracing frame is provided with sensor base, and sensor base is provided with pressure transducer；
The adjusting part being positioned at sensor base rear it is additionally provided with on bracing frame, adjusting part includes the bottom plate being fixed on bracing frame, swivel plate, upper mounted plate and the installing rack being removably fixed with on upper mounted plate, the lower surface of upper mounted plate is provided through the first notch of its front/rear end, swivel plate runs through the second notch and is connected with upper mounted plate, the rear end of swivel plate is articulated with on bracing frame, the front end of swivel plate acts on pressure transducer, and the upper surface of bottom plate is provided through its front/rear end and can accommodate the second notch of swivel plate lower end；
It is fixed with on movable block and is positioned at the belt pulley below installing rack and for driving the second driving motor of belt pulley；
The middle part of movable block is provided through nut, and leading screw runs through nut, and movable block can be made by leading screw to move along the axis direction of leading screw with coordinating of nut；
It is additionally provided with several leads running through movable block upper and lower end face on bracing frame, movable block is fixed with the latch assembly for clamping lead.
During this utility model application, compressor clutch is installed on installing rack, then on the belt pulley of driving dish that belt sleeve is located on compressor clutch and movable block.Restart the first driving motor, by the positive and negative rotation of leading screw to adjust the movable block position relative to compressor clutch.
During adjustment, it is articulated with on bracing frame due to swivel plate one end and the other end acts on pressure transducer, thus during moving down movable block, swivel plate can be applied to the active force that pressure transducer is different under the effect of belt, specifically, the tensile force of belt is the biggest, and the force value that pressure transducer is gathered is the biggest；Otherwise, the least.So, then the force value that can be gathered according to pressure transducer is as the reference adjusting belt tension degree.Wherein, after the position adjustment of movable block is good, then clamps lead, and the weight carrying movable block with this by latch assembly, alleviate the burden of leading screw.
After adjusting, rotated by the second driving motor-driven belt wheel again, then by the induced effect of belt so that the driving dish on compressor clutch also rotates, at this moment, simulate actual shock pulse and impact energy by foreign object and can complete impulse detection to clash into belt.
For ease of adjusting the position of compressor clutch, the axle center making its driving dish can be able to be located along the same line with the axis of belt pulley, further, fixed plate being provided with several fixing grooves running through upper mounted plate front/rear end, the cross section of fixing groove is inverted " t " type.In this utility model, fixing groove can be used for adjusting installing rack relative to position before and after upper mounted plate, and then position before and after adjustable compressor clutch.During application, bolt is upside down put into fixing groove, then the screw rod end of bolt can be fixed through installing rack.
Further, described installing rack offers several and described fixing groove is correspondingly arranged and left and right is to the strip gab arranged.In this utility model, strip gab can be used for the right position adjusting installing rack relative to upper mounted plate, and then the right position of adjustable compressor clutch.
For realizing the latch assembly clamping work to lead, latch assembly includes matrix, its upper and lower end face and can the first breach of semi-surrounding lead outer wall it is provided through on matrix, two regulation chambeies laying respectively at the first breach both sides it are additionally provided with in matrix, two regulation intracavity are all movably set with portable plate, regulation chamber is divided into the relatively independent first area near the first breach and the second area away from the first breach by portable plate, it is provided with free end on portable plate may pass through matrix inside and outside wall and be positioned at the movable post of the first indentation, there, elastic component it is provided with in second area, elastic component acts on portable plate and makes the free end of movable post act on the sidewall of lead, the breather line connected with first area it is additionally provided with on matrix.
During adjustment, should first pass through breather line and inject gases at high pressure in first area, portable plate then can drive movable post to overcome the effect of elastic component to move to the position of second area, so that the contacting of movable post disengaging and lead.So, movable block then can occur moving up and down of relative leading screw by coordinating between screw mandrel with nut.To be adjusted to after desired location, namely after the tensioning degree of belt regulates, extract the gases at high pressure in first area again out, movable post is made to be reset to again act on lead under the supporting role of elastic component, thus clamp lead, so, then can carry the weight of movable block, alleviate the burden of leading screw.
For the raising activity post stability to lead effect, further, the free end of described movable post is provided with curved clamping plate, and the end face of clamping plate adapts with the outer wall of described lead.Curved clamping plate can strengthen and the contact area of lead outer wall, so, reaches firm locking purpose by the frictional force of both increases.
For improving the stability that movable block runs, further, described lead is provided with four, and four leads are uniformly distributed in the surrounding of described leading screw.
Further, being provided with block between the described latch assembly on two leads of described leading screw the same side, the upper end of block is connected with the lower end of described movable block.Even if the upper end of matrix is fixed on the lower end of movable block, but in running, due to the vibrations of driving means, lead half is very likely made to depart from the first gap regions, and by the setting of block, then by filling up the gap between two matrixes, reduce with this and rock, improve the stability run.
Handling for ease of lead, and improve the fastness that lead is fixing on bracing frame, further, also include fixing seat, described lead is arranged on bracing frame by fixing seat, fixing seat includes canned paragraph and accommodating section, and accommodating section is provided with holding tank, and the outer wall of accommodating section offers the second breach connected with holding tank；Also include the fastening block being removably attached to the second indentation, there.In this utility model, when fastening block is installed on the second indentation, there, the area of cross section in holding tank can be changed, and realize lead is fixed with this.During this utility model application, the two ends up and down of lead are all fixed on bracing frame by fixing seat.The end being first directed to post is inserted in holding tank, then fastening block is fixed on the second indentation, there.
This utility model has the advantages that
1, it is articulated with on bracing frame due to swivel plate one end and the other end acts on pressure transducer, thus during moving down movable block, swivel plate can be applied to the active force that pressure transducer is different under the effect of belt, specifically, the tensile force of belt is the biggest, and the force value that pressure transducer is gathered is the biggest；Otherwise, the least.So, then the force value that can be gathered according to pressure transducer, as adjusting the reference of belt tension degree, so, can improve the precision of regulation.
2, in this utility model, can pass through coordinating between latch assembly with lead, namely by the two movable post effects to same lead sidewall, and clamp lead to carry the weight of movable block.So, the burden of leading screw can be alleviated, thus the purpose of reach to increase the service life, improve operation stability and reliability.
3, curved clamping plate can strengthen movable post free end and the contact area of lead outer wall, so, can reach firm locking purpose by increasing both frictional force.
4, in running, due to the vibrations of driving means, it is most likely that make lead half depart from the first gap regions, and by the setting of block, then by filling up the gap between two matrixes, reduce with this and rock, improve the stability run.
5, in this utility model, when fastening block is installed on the second indentation, there, the area of cross section in holding tank can be changed, and realize lead is fixed with this.Visible, the setting of fixing seat can be easy to the handling of lead, and improves the fastness that lead is fixing on bracing frame.
Accompanying drawing explanation
Fig. 1 is the structural representation of one specific embodiment of belt tension regulating device described in the utility model；
Fig. 2 is bracing frame and the structural representation of one specific embodiment of adjusting part in belt tension regulating device described in the utility model；
Fig. 3 is adjusting part and the structural representation of one specific embodiment of installing rack in belt tension regulating device described in the utility model；
Fig. 4 is the structural representation of one specific embodiment of movable block in belt tension regulating device described in the utility model；
Fig. 5 is the structural representation of one specific embodiment of latch assembly in belt tension regulating device described in the utility model；
Fig. 6 is the structural representation fixing one specific embodiment of seat in belt tension regulating device described in the utility model.
nullEntitled corresponding to reference in accompanying drawing: 1、Bracing frame，2、First drives motor，3、Movable block，4、Lead，5、Leading screw，6、Nut，7、Matrix，8、First breach，9、Regulation chamber，10、Portable plate，11、Movable post，12、Elastic component，13、Breather line，14、Clamping plate，15、Block，16、Fixing seat，17、Holding tank，18、Second breach，19、Fastening block，20、Installing rack，21、Belt pulley，22、Second drives motor，23、Bottom plate，24、Swivel plate，25、Upper mounted plate，26、First notch，27、Second notch，28、Sensor base，29、Pressure transducer，30、Fixing groove，31、Strip gab，32、Latch assembly，33、Belt，34、Compressor clutch.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, this utility model is described in further detail, but embodiment of the present utility model is not limited to this.
Embodiment 1
As shown in Figures 1 to 6, belt tension regulating device, rotate including bracing frame 1, upper and lower two ends be arranged on bracing frame 1 leading screw 5, first drive motor 2 and movable block 3 for drive leading screw 5 to rotate；
Bracing frame 1 is provided with sensor base 28, and sensor base 28 is provided with pressure transducer 29；
The adjusting part being positioned at sensor base 28 rear it is additionally provided with on bracing frame 1, adjusting part includes the bottom plate 23 being fixed on bracing frame 1, swivel plate 24, upper mounted plate 25 and the installing rack 20 being removably fixed with on upper mounted plate 25, the lower surface of upper mounted plate 25 is provided through the first notch 26 of its front/rear end, swivel plate 24 runs through the second notch 27 and is connected with upper mounted plate 25, the rear end of swivel plate 24 is articulated with on bracing frame 1, the front end of swivel plate 24 acts on pressure transducer 29, the upper surface of bottom plate 23 is provided through its front/rear end and can accommodate the second notch 27 of swivel plate 24 lower end；
It is fixed with on movable block 3 and is positioned at the belt pulley 21 below installing rack 20 and for driving the second driving motor 22 of belt pulley 21；
The middle part of movable block 3 is provided through nut 6, and leading screw 5 runs through nut 6, and movable block 3 can be made by leading screw 5 to move along the axis direction of leading screw 5 with coordinating of nut 6；
It is additionally provided with several leads 4 running through movable block 3 upper and lower end face on bracing frame 1, movable block 3 is fixed with the latch assembly 32 for clamping lead 4.
During the present embodiment application, compressor clutch 34 is installed on installing rack 20, then on the belt pulley 21 of driving dish that belt 33 is sheathed on compressor clutch 34 and movable block 3.Restart the first driving motor 2, by the positive and negative rotation of leading screw 5 to adjust the position of the relative compressor clutch 34 of movable block 3.
During adjustment, it is articulated with on bracing frame due to swivel plate 24 one end and the other end acts on pressure transducer, thus during moving down movable block 3, swivel plate 24 can be applied to the active force that pressure transducer 29 is different under the effect of belt 33, specifically, the tensile force of belt 33 is the biggest, and the force value that pressure transducer 29 is gathered is the biggest；Otherwise, the least.So, then the force value that can be gathered according to pressure transducer 29 is as the reference adjusting belt 33 tightness.Wherein, after the position adjustment of movable block 3 is good, then clamps lead 4, and the weight carrying movable block 3 with this by latch assembly 32, alleviate the burden of leading screw 5.
After adjusting, belt pulley 21 is driven to rotate by the second driving motor 22 again, again by the induced effect of belt 33, driving dish on compressor clutch 34 is also rotated, at this moment, simulate actual shock pulse and impact energy by foreign object and can complete impulse detection to clash into belt 33.
For ease of adjusting the position of compressor clutch 34, the axle center making its driving dish can be able to be located along the same line with the axis of belt pulley 21, preferably, fixed plate 25 being provided with several fixing grooves 30 running through upper mounted plate 25 front/rear end, the cross section of fixing groove 30 is inverted " t " type.In the present embodiment, fixing groove 30 can be used for adjusting before and after the relative upper mounted plate 25 of installing rack 20 that before and after position, and then adjustable compressor clutch 34 position.During application, bolt is upside down put into fixing groove 30, then the screw rod end of bolt can be fixed through installing rack 20.
Preferably, described installing rack 20 offers several and described fixing groove 30 is correspondingly arranged and left and right is to the strip gab 31 arranged.In this utility model, strip gab 31 can be used for adjusting the right position of the relative upper mounted plate 25 of installing rack 20, and then the right position of adjustable compressor clutch 34.
Preferably, latch assembly 32 includes matrix 7, its upper and lower end face and can the first breach 8 of semi-surrounding lead 4 outer wall it is provided through on matrix 7, two regulation chambeies 9 laying respectively at the first breach 8 both sides it are additionally provided with in matrix 7, portable plate 10 all it is movably set with in two regulation chambeies 9, regulation chamber 9 is divided into the relatively independent first area near the first breach 8 and the second area away from the first breach 8 by portable plate 10, it is provided with free end on portable plate 10 may pass through matrix 7 inside and outside wall and be positioned at the movable post 11 at the first breach 8, elastic component 12 it is provided with in second area, elastic component 12 acts on portable plate 10 and makes the free end of movable post 11 act on the sidewall of lead 4, the breather line 13 connected with first area it is additionally provided with on matrix 7.
During adjustment, should first pass through breather line 13 and inject gases at high pressure in first area, portable plate 10 then can drive movable post 11 to overcome the effect of elastic component 12 to move to the position of second area, so that the contacting of movable post 11 disengaging and lead 4.So, movable block 3 then can occur moving up and down of relative leading screw 5 by coordinating between screw mandrel 5 with nut 6.To be adjusted to after desired location, namely after the tensioning degree of belt 33 regulates, extract the gases at high pressure in first area again out, movable post 11 is made to be reset to again act on lead 4 under the supporting role of elastic component 12, thus clamp lead 4, so, then can carry the weight of movable block 3, alleviate the burden of leading screw 5.
Stability lead 4 acted on for raising activity post 11, it is preferable that the free end of described movable post 11 is provided with curved clamping plate 14, and the end face of clamping plate 14 adapts with the outer wall of described lead 4.Curved clamping plate 14 can strengthen and the contact area of lead 4 outer wall, so, reaches firm locking purpose by the frictional force of both increases.
For improving the stability that movable block 3 runs, it is preferable that described lead 4 is provided with four, and four leads 4 are uniformly distributed in the surrounding of described leading screw 5.
Being preferably located between the described latch assembly 32 on two leads 4 of described leading screw 5 the same side and be provided with block 15, the upper end of block 15 is connected with the lower end of described movable block 3.Even if the upper end of matrix 7 is fixed on the lower end of movable block 3, but in running, vibrations due to driving means, lead 4 half is very likely made to depart from the first breach 8 region, and by the setting of block 15, then by filling up the gap between two matrixes 7, reduce with this and rock, improve the stability run.
Handling for ease of lead 4, and improve the fastness that lead 4 is fixing on bracing frame 1, preferably, also include fixing seat 16, described lead 4 is arranged on bracing frame 1 by fixing seat 16, fixing seat 16 includes canned paragraph and accommodating section, accommodating section is provided with holding tank 17, the outer wall of accommodating section offers the second breach 18 connected with holding tank；Also include being removably attached to the fastening block 19 at the second breach 18.In this utility model, when fastening block 19 is installed at the second breach 18, the area of cross section in holding tank 17 can be changed, and with this realize lead 4 fixing.During the present embodiment application, the two ends up and down of lead 4 are all fixed on bracing frame 1 by fixing seat 16.The end being first directed to post 4 is inserted in holding tank 17, then is fixed on by fastening block 19 at second breach 18.
Above content is to combine the further description that this utility model is made by concrete preferred implementation, it is impossible to assert that detailed description of the invention of the present utility model is confined to these explanations.For this utility model person of an ordinary skill in the technical field, other embodiments drawn under without departing from the technical solution of the utility model, should be included in protection domain of the present utility model.
Claims (8)
1. belt tension regulating device, it is characterised in that: include that bracing frame (1), upper and lower two ends rotate the leading screw (5) being arranged on bracing frame (1), the first driving motor (2) and the movable block (3) being used for driving leading screw (5) to rotate；
Bracing frame (1) is provided with sensor base (28), and sensor base (28) is provided with pressure transducer (29)；
The adjusting part being positioned at sensor base (28) rear it is additionally provided with on bracing frame (1), adjusting part includes the bottom plate (23) being fixed on bracing frame (1), swivel plate (24), upper mounted plate (25) and the installing rack (20) being removably fixed with on upper mounted plate (25), the lower surface of upper mounted plate (25) is provided through first notch (26) of its front/rear end, swivel plate (24) runs through the second notch (27) and is connected with upper mounted plate (25), the rear end of swivel plate (24) is articulated with on bracing frame (1), the front end of swivel plate (24) acts on pressure transducer (29), the upper surface of bottom plate (23) is provided through its front/rear end and can accommodate second notch (27) of swivel plate (24) lower end；
The belt pulley (21) being positioned at installing rack (20) lower section and the second driving motor (22) being used for driving belt pulley (21) it is fixed with on movable block (3)；
The middle part of movable block (3) is provided through nut (6), and leading screw (5) runs through nut (6), and movable block (3) can be made by leading screw (5) to move along the axis direction of leading screw (5) with coordinating of nut (6)；
It is additionally provided with several leads (4) running through movable block (3) upper and lower end face on bracing frame (1), movable block (3) is fixed with the latch assembly (32) for clamping lead (4).
Belt tension regulating device the most according to claim 1, it is characterised in that: being provided with several fixing grooves (30) running through upper mounted plate (25) front/rear end on fixed plate (25), the cross section of fixing groove (30) is inverted " t " type.
Belt tension regulating device the most according to claim 2, it is characterised in that: offer several on described installing rack (20) and described fixing groove (30) is correspondingly arranged and left and right is to the strip gab (31) arranged.
nullBelt tension regulating device the most according to claim 1，It is characterized in that: described latch assembly (32) includes matrix (7)，Its upper and lower end face and can first breach (8) of lead (4) outer wall described in semi-surrounding it is provided through on matrix (7)，Two regulation chambeies (9) laying respectively at the first breach (8) both sides it are additionally provided with in matrix (7)，Portable plate (10) all it is movably set with in two regulations chamber (9)，Regulation chamber (9) is divided into the relatively independent first area near the first breach (8) and the second area away from the first breach (8) by portable plate (10)，It is provided with free end on portable plate (10) may pass through matrix (7) inside and outside wall and be positioned at the movable post (11) at the first breach (8) place，Elastic component (12) it is provided with in second area，Elastic component (12) acts on portable plate (10) and makes the free end of movable post (11) act on the sidewall of lead (4)，The breather line (13) connected with first area it is additionally provided with on matrix (7).
Belt tension regulating device the most according to claim 4, it is characterised in that: the free end of described movable post (11) is provided with curved clamping plate (14), and the end face of clamping plate (14) adapts with the outer wall of described lead (4).
Belt tension regulating device the most according to claim 1, it is characterised in that: described lead (4) is provided with four, and four leads (4) are uniformly distributed in the surrounding of described leading screw (5).
Belt tension regulating device the most according to claim 6, it is characterized in that: being positioned between the described latch assembly (32) on two leads (4) of described leading screw (5) the same side and be provided with block (15), the upper end of block (15) is connected with the lower end of described movable block (3).
8. according to the belt tension regulating device described in any one in claim 1 ~ 7, it is characterized in that: also include fixing seat (16), described lead (4) is arranged on bracing frame (1) by fixing seat (16), fixing seat (16) includes canned paragraph and accommodating section, it is provided with holding tank (17) in accommodating section, the outer wall of accommodating section offers the second breach (18) connected with holding tank；Also include the fastening block (19) being removably attached to the second breach (18) place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620491636.5U CN205780654U (en) | 2016-05-26 | 2016-05-26 | Belt tension regulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620491636.5U CN205780654U (en) | 2016-05-26 | 2016-05-26 | Belt tension regulating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205780654U true CN205780654U (en) | 2016-12-07 |
Family
ID=58110207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620491636.5U Expired - Fee Related CN205780654U (en) | 2016-05-26 | 2016-05-26 | Belt tension regulating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205780654U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110153845A (en) * | 2019-06-06 | 2019-08-23 | 同济大学 | Belt protecting device is used in a kind of clamping of wind blade blade tip |
-
2016
- 2016-05-26 CN CN201620491636.5U patent/CN205780654U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110153845A (en) * | 2019-06-06 | 2019-08-23 | 同济大学 | Belt protecting device is used in a kind of clamping of wind blade blade tip |
| CN110153845B (en) * | 2019-06-06 | 2021-02-02 | 同济大学 | Belt protection device for clamping blade tip of wind blade |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 Termination date: 20200526 |