[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

CN202644355U - Road roller vibrating drum capable of shifting modes of circular vibration, oscillation or compound vibration - Google Patents

Road roller vibrating drum capable of shifting modes of circular vibration, oscillation or compound vibration Download PDF

Info

Publication number
CN202644355U
CN202644355U CN 201220329812 CN201220329812U CN202644355U CN 202644355 U CN202644355 U CN 202644355U CN 201220329812 CN201220329812 CN 201220329812 CN 201220329812 U CN201220329812 U CN 201220329812U CN 202644355 U CN202644355 U CN 202644355U
Authority
CN
China
Prior art keywords
vibration
circular
vibrating
shaft
wheel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN 201220329812
Other languages
Chinese (zh)
Inventor
陈启方
钱厚云
张晨
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHIZHOU TENGHU MACHINERY TECHNOLOGY Co Ltd
Original Assignee
CHIZHOU TENGHU MACHINERY TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CHIZHOU TENGHU MACHINERY TECHNOLOGY Co Ltd filed Critical CHIZHOU TENGHU MACHINERY TECHNOLOGY Co Ltd
Priority to CN 201220329812 priority Critical patent/CN202644355U/en
Application granted granted Critical
Publication of CN202644355U publication Critical patent/CN202644355U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Landscapes

  • Road Paving Machines (AREA)

Abstract

Provided is a road roller vibrating drum capable of shifting modes of circular vibration, oscillation or compound vibration. The road roller vibrating drum capable of shifting modes of circular vibration, oscillation or compound vibration mainly comprises a steel wheel, a steel wheel shock excitation mechanism, vibration motors, a frame bearing, a connection plate, a shock absorber and the like. A circular vibration shock excitation device and an oscillation vibration shock excitation device are arranged in the steel wheel. The circular vibration shock excitation device mainly comprises the vibration motor, a first transmission shaft, a circular vibration clutch, a second transmission shaft, a circular vibration shaft, a circular vibration bearing and the like. When the circular vibration clutch is closed, the steel wheel performs circular vibration. The oscillation vibration shock excitation device mainly comprises a vibration motor, a first transmission shaft, an oscillation vibration clutch, an oscillation vibration drive mechanism, a group of oscillation vibration shafts, an oscillation vibration bearing and the like. When the oscillation vibration clutch is closed, the steel wheel performs oscillation vibration.

Description

A kind of vibration wheel of road roller that can be exchanged into circular vibration or vibration or complex vibration
Technical field
The utility model relates to a kind of vibrating wheels of road roller, particularly a kind of vibration wheel of road roller that can be exchanged into circular vibration or vibration or complex vibration.
Background technology
Vibratory roller in using at present is divided into circular vibration (direction of vibration 360 degree of vibrating wheels change) road roller, vibration vibration (steel wheel is made reciprocally swinging around its axis of rotation) road roller by mode of vibration, its mode of vibration of vibratory roller is unique, can not satisfy from the roadbed to the road surface and the whole compactings construction operating modes of bridge floor, thereby under different construction operating modes, need to carry out the compacting construction with the road roller of different mode of vibrations, therefore, the compacting efficiency of construction of existing vibratory roller has much room for improvement; The compacting construction cost remains to be reduced.
The utility model content
The purpose of this utility model provides a kind of vibration wheel of road roller that can be exchanged into circular vibration or vibration or complex vibration, this vibrating wheels can carry out separately circular vibration, also can vibrate separately vibration, also can carry out simultaneously circular vibration and vibration vibration, the utility model can adapt to the compacting construction of various working, shorten the compacting engineering time, improve the efficient of compacting construction, save the compacting construction cost.
The purpose of this utility model is achieved in that circular vibration and two groups of vibrators of vibration vibration is installed in same vibrating wheels, the main involving vibrations motor of circular vibration vibrator, the first power transmission shaft, circular vibration clutch, second driving shaft, circular vibrating shaft and circular vibration bearing.The main involving vibrations motor of vibration vibration exciter, the first power transmission shaft, vibration vibration clutch, vibration vibratory drive mechanism, the 4th power transmission shaft, vibration vibrating shaft and vibration vibration bearing.
A kind of vibration wheel of road roller that can be exchanged into circular vibration or vibration or complex vibration, mainly contain the compositions such as steel wheel, steel wheel exciting agency, vibrating motor, frame bearing, junction plate, damper, it is characterized in that: circular vibration vibrator and vibration vibration exciter are installed in steel wheel.
A kind of vibration wheel of road roller that can be exchanged into circular vibration or vibration or complex vibration, it is characterized in that: the main involving vibrations motor of described circular vibration vibrator, the first power transmission shaft, the circular vibration clutch, second driving shaft, circular vibrating shaft and circular vibration bearing etc., circular vibrating shaft in the circular vibration vibrator is the axle with eccentricity of axis hole band internal tooth, circular vibrating shaft is installed in the corresponding circular vibration bearing, according to structure and exciting force requirement, circular vibrating shaft more than two or two can be set, but the initial installation phase angle of all circular vibrating shafts should equate.
A kind of vibration wheel of road roller that can be exchanged into circular vibration or vibration or complex vibration, it is characterized in that: the second driving shaft in the described circular vibration vibrator is the axle sleeve with external tooth, and second driving shaft can be made Same Part with circular vibrating shaft and then need not second driving shaft.
A kind of vibration wheel of road roller that can be exchanged into circular vibration or vibration or complex vibration, it is characterized in that: the output of the circular vibration clutch in the described circular vibration vibrator is connected with second driving shaft, the input of circular vibration clutch is connected with the first power transmission shaft, and the first power transmission shaft is connected with the output shaft end of vibrating motor.
A kind of vibration wheel of road roller that can be exchanged into circular vibration or vibration or complex vibration, it is characterized in that: the main involving vibrations motor of described vibration vibration exciter, the first power transmission shaft, vibration vibration clutch, vibration vibratory drive mechanism, one group of vibration vibrating shaft and the vibration bearing etc. that vibrates, two vibration vibrating shafts in the vibration vibration exciter are axles with eccentricity of axis hole band internal tooth, two vibration vibrating shafts are installed in the corresponding vibration vibration bearing, and the initial installation phase angle of two vibration vibrating shafts becomes 180 degree.
A kind of vibration wheel of road roller that can be exchanged into circular vibration or vibration or complex vibration, it is characterized in that: two synchronously in the same way gear, driven wheel and two the 4th power transmission shafts are installed in the vibration vibratory drive mechanism in the described vibration vibration exciter, two synchronous in the same way axis holes of gear have internal tooth, two the number of teeth of gear is equal in the same way synchronously, two the 4th power transmission shaft band external tooths, the internal tooth of the external tooth of the 4th power transmission shaft and vibration vibrating shaft, the synchronous in the same way internal tooth of gear jointly form energy constant speed transmitting torque, have certain flexible connector.
A kind of vibration wheel of road roller that can be exchanged into circular vibration or vibration or complex vibration is characterized in that: the 4th power transmission shaft in the described vibration vibration exciter and vibration vibrating shaft are made Same Part or can be omitted the 4th power transmission shaft when gear is made Same Part in the same way synchronously.
A kind of vibration wheel of road roller that can be exchanged into circular vibration or vibration or complex vibration is characterized in that: the in-house gear drive of vibration vibratory drive in the described vibration vibration exciter can change cog belt or chain transmission into.
A kind of vibration wheel of road roller that can be exchanged into circular vibration or vibration or complex vibration, it is characterized in that: the output of vibration vibration clutch is connected with driven wheel, the input of vibration vibration clutch is connected with the first power transmission shaft, and the first power transmission shaft passes second driving shaft and is connected with the output shaft end of vibrating motor.
A kind of vibration wheel of road roller that can be exchanged into circular vibration or vibration or complex vibration, it is characterized in that: vibrating motor is installed on the junction plate, and junction plate is connected with frame by damper, and junction plate also is fixedly connected with the right side frame bearing arrangement.
Description of drawings
The schematic diagram of the preferred typical structure embodiment of accompanying drawing is that the utility model provides a kind of vibration wheel of road roller that can be exchanged into circular vibration or vibration or complex vibration.
Among the figure, 1-frame; 2-damper; 3-left side frame bearing arrangement; 4-vibration vibrating shaft; 5-vibration vibratory drive mechanism; 6-vibration vibration clutch; 7-steel wheel; 8-circular vibrating shaft; 9-right side frame bearing arrangement; 10-circular vibration clutch; 11-vibrating motor; 12-junction plate; 13-circular vibration bearing; 14-synchronously gears in the same way; 15-driven wheel; 16-vibration vibration bearing; I-first power transmission shaft; II-second driving shaft; IV-the 4th power transmission shaft.
The specific embodiment
Existing edition with parallel text utility model provides, and a kind of schematic diagram that is convertible into as the preferred typical structure embodiment of circular vibration or vibration or combined vibrating roller vibrating wheels is illustrated, circular vibration and two groups of vibrators of vibration vibration are installed in same steel wheel 7, the main involving vibrations motor 11 of circular vibration vibrator, the first power transmission shaft I, circular vibration clutch 10, second driving shaft II, circular vibrating shaft 8 and circular vibration bearing 13.Main involving vibrations motor 11, the first power transmission shaft I of vibration vibration exciter, vibration vibration clutch 6, vibration vibratory drive mechanism 5, one groups of vibrations vibrating shaft 4 and vibration vibration bearing 16.
Left side frame bearing arrangement 3 is realized steel wheel 7 and frame 1 to be rotationally connected by damper 2, two vibration vibrating shafts 4 are axles with eccentricity of axis hole band internal tooth, two vibration vibrating shafts 4 are installed in the corresponding vibration vibration bearing 16, the initial installation phase angle of two vibration vibrating shafts 4 becomes 180 degree, two synchronously gears 14 in the same way are installed in the vibration vibratory drive mechanism 5, driven wheel 15 and two the 4th power transmission shaft IV, two synchronous in the same way axis holes of gear 14 have internal tooth, two the number of teeth of gear 14 is equal in the same way synchronously, two the 4th power transmission shaft IV band external tooths, the internal tooth of the external tooth of the 4th power transmission shaft IV and vibration vibrating shaft 4, the internal tooth of gear 14 forms energy constant speed transmitting torque jointly in the same way synchronously, has certain flexible connector (such as the barreled tooth flank connector), the 4th power transmission shaft IV also can with the vibration vibrating shaft 4 make Same Part or with synchronously in the same way gear 14 make Same Part and omit the 4th power transmission shaft IV, need only vibration vibrating shaft 4 and can form in the same way synchronously energy constant speed transmitting torque between the gear 14, have certain flexible secondary the getting final product that be connected with a joggle, gear drive in the vibration vibratory drive mechanism 5 also can change cog belt or chain transmission into, the output of vibration vibration clutch 6 is connected with driven wheel 15, the input of vibration vibration clutch 6 is connected with the first power transmission shaft I, and the first power transmission shaft I is passed the second driving shaft II and is connected with the output shaft end of vibrating motor 11.
Circular vibrating shaft 8 is axles with eccentricity of axis hole band internal tooth, circular vibrating shaft 8 is installed in the corresponding circular vibration bearing 13, according to structure and exciting force requirement, circular vibrating shaft more than two or two can be set, but the initial installation phase angle of all circular vibrating shafts should equate, the second driving shaft II is with the axle sleeve of external tooth so that the first power transmission shaft I is passed wherein, the second driving shaft II can be made Same Part with circular vibrating shaft 8 and then need not the second driving shaft II, the output of circular vibration clutch 10 is connected with the second driving shaft II, the input of circular vibration clutch 10 is connected with the first power transmission shaft I, and the first power transmission shaft I is connected with the output shaft end of vibrating motor 11.
Vibrating motor 11 is installed on the junction plate 12, and junction plate 12 is connected connection by damper 2 with frame, and junction plate 12 also is fixedly connected with right side frame bearing arrangement 9, guarantees that with this vibrating motor 11 does not rotate with the rotation of steel wheel 7.
The utility model provides, and a kind of course of work that is convertible into as the preferred typical structure embodiment of circular vibration or vibration or combined vibrating roller vibrating wheels is: vibrating motor 11 drives the rotation of the first power transmission shaft I, the first power transmission shaft I drives the input rotation of input and the vibration vibration clutch 6 of circular vibration clutch 10 simultaneously, namely as long as vibrating motor 11 rotates, the all simultaneously rotations of the input of the input of circular vibration clutch 10 and vibration vibration clutch 6, the implementation procedure of two kinds of mode of vibrations is: one, circular vibration, when the output of circular vibration clutch 10 when input is combined, driving the second driving shaft II is circular vibrating shaft 8 rotations, produce centrifugal force during circular vibrating shaft 8 rotation, form the exciting force on the 360 degree directions, make steel wheel 7 make circular vibration; Two, vibration vibration, when vibration is vibrated the output of clutch 6 when input is combined, make driven wheel 15 rotations, driven wheel 15 simultaneously two of engaged transmission synchronously in the same way gear 14 make synchronous rotating Vortex, two synchronous in the same way gears 14 are made synchronous rotating Vortex by two vibration vibrating shafts 4 that the 4th power transmission shaft IV drives its correspondence simultaneously, because the initial installation phase angle of two vibration vibrating shafts 4 becomes 180 degree, so, only produce an antithesis square during two vibration vibrating shaft 4 rotations, make steel wheel 7 do the vibration vibration.
A kind of preferred typical structure embodiment that is convertible into as circular vibration or vibration or combined vibrating roller vibrating wheels that the utility model provides has four kinds of operating modes to select, one, is combined with input and the output of circular vibration clutch 10 when separating with input when the output of vibration vibration clutch 6,7 of steel wheels produce the vibration vibration, and this moment, steel wheel 7 was the vibration vibrating wheels; Two, be combined with input and the output of the vibration clutch 6 that vibrates when separating with input when the output of circular vibration clutch 10,7 of steel wheels produce circular vibration, and this moment, steel wheel 7 was taken turns for circular vibration; Three, when the output of the output of circular vibration clutch 10 and input and vibration vibration clutch 6 all is in bonding state with input, steel wheel 7 is not only made circular vibration but also do the vibration vibration, and this moment, steel wheel 7 was that complex vibration is taken turns; Four, when the output of the output of circular vibration clutch 10 and input and vibration vibration clutch 6 all was in released state with input, steel wheel 7 did not vibrate, and steel wheel 7 is the static pressure steel wheel at this moment.
Realization of the present utility model, the embodiment manufacturing technology routinely that provides by accompanying drawing gets final product.

Claims (10)

1. vibration wheel of road roller that can be exchanged into circular vibration or vibration or complex vibration, mainly contain the compositions such as steel wheel, steel wheel exciting agency, vibrating motor, frame bearing, junction plate, damper, it is characterized in that: circular vibration vibrator and vibration vibration exciter are installed in steel wheel (7).
2. a kind of vibration wheel of road roller that can be exchanged into circular vibration or vibration or complex vibration as claimed in claim 1, it is characterized in that: the main involving vibrations motor of described circular vibration vibrator (11), the first power transmission shaft (I), circular vibration clutch (10), second driving shaft (II), circular vibrating shaft (8) and circular vibration bearing (13) etc., circular vibrating shaft in the circular vibration vibrator (8) is the axle with eccentricity of axis hole band internal tooth, circular vibrating shaft (8) is installed in the corresponding circular vibration bearing (13), according to structure and exciting force requirement, circular vibrating shaft more than two or two can be set, but the initial installation phase angle of all circular vibrating shafts should equate.
3. a kind of vibration wheel of road roller that can be exchanged into circular vibration or vibration or complex vibration as claimed in claim 2, it is characterized in that: the second driving shaft (II) in the described circular vibration vibrator is the axle sleeve with external tooth, second driving shaft (II) can and circular vibrating shaft (8) make Same Part and then need not second driving shaft (II).
4. a kind of vibration wheel of road roller that can be exchanged into circular vibration or vibration or complex vibration as claimed in claim 2, it is characterized in that: the output of the circular vibration clutch (10) in the described circular vibration vibrator is connected II with second driving shaft) connect, the input of circular vibration clutch (10) is connected with the first power transmission shaft (I), and the first power transmission shaft (I) is connected with the output shaft end of vibrating motor (11).
5. a kind of vibration wheel of road roller that can be exchanged into circular vibration or vibration or complex vibration as claimed in claim 1, it is characterized in that: the main involving vibrations motor of described vibration vibration exciter (11), the first power transmission shaft (I), vibration vibration clutch (6), vibration vibratory drive mechanism (5), one group of vibration vibrating shaft (4) and the vibration bearing (16) etc. that vibrates, two vibration vibrating shafts (4) in the vibration vibration exciter are the axles with eccentricity of axis hole band internal tooth, two vibration vibrating shafts (4) are installed in the corresponding vibration vibration bearing (16), and the initial installation phase angle of two vibration vibrating shafts (4) becomes 180 degree.
6. a kind of vibration wheel of road roller that can be exchanged into circular vibration or vibration or complex vibration as claimed in claim 5, it is characterized in that: two synchronously gears (14) in the same way are installed in the vibration vibratory drive mechanism (5) in the described vibration vibration exciter, driven wheel (15) and two the 4th power transmission shafts (IV), two synchronously in the same way the axis hole of gear (14) internal tooth is arranged, two the number of teeth of gear (14) is equal in the same way synchronously, two the 4th power transmission shafts (IV) band external tooth, the internal tooth of the external tooth of the 4th power transmission shaft (IV) and vibration vibrating shaft (4), the internal tooth of gear (14) forms energy constant speed transmitting torque jointly in the same way synchronously, has certain flexible connector.
7. a kind of vibration wheel of road roller that can be exchanged into circular vibration or vibration or complex vibration as claimed in claim 6 is characterized in that: the 4th power transmission shaft (IV) in the described vibration vibration exciter and vibration vibrating shaft (4) make Same Part or with synchronously in the same way gear (14) can omit the 4th power transmission shaft (IV) when making Same Part.
8. a kind of vibration wheel of road roller that can be exchanged into circular vibration or vibration or complex vibration as claimed in claim 6 is characterized in that: the gear drive in the vibration vibratory drive mechanism (5) in the described vibration vibration exciter can change cog belt or chain transmission into.
9. a kind of vibration wheel of road roller that can be exchanged into circular vibration or vibration or complex vibration as claimed in claim 5, it is characterized in that: the output of vibration vibration clutch (6) is connected with driven wheel (15), the input of vibration vibration clutch (6) is connected with the first power transmission shaft (I), and the first power transmission shaft (I) passes second driving shaft (II) and is connected with the output shaft end of vibrating motor (11).
10. such as claim 4 or 9 described a kind of vibration wheel of road roller that can be exchanged into circular vibration or vibration or complex vibration, it is characterized in that: vibrating motor (11) is installed on the junction plate (12), junction plate (12) is connected 1 by damper (2) with frame) connect, junction plate (12) also is fixedly connected with right side frame bearing arrangement (9).
CN 201220329812 2012-07-09 2012-07-09 Road roller vibrating drum capable of shifting modes of circular vibration, oscillation or compound vibration Expired - Lifetime CN202644355U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220329812 CN202644355U (en) 2012-07-09 2012-07-09 Road roller vibrating drum capable of shifting modes of circular vibration, oscillation or compound vibration

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220329812 CN202644355U (en) 2012-07-09 2012-07-09 Road roller vibrating drum capable of shifting modes of circular vibration, oscillation or compound vibration

Publications (1)

Publication Number Publication Date
CN202644355U true CN202644355U (en) 2013-01-02

Family

ID=47413485

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220329812 Expired - Lifetime CN202644355U (en) 2012-07-09 2012-07-09 Road roller vibrating drum capable of shifting modes of circular vibration, oscillation or compound vibration

Country Status (1)

Country Link
CN (1) CN202644355U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102747668A (en) * 2012-07-09 2012-10-24 池州腾虎机械科技有限公司 Road roller vibrating drum capable of converting among circular vibration, oscillation and complex vibration
CN106245500A (en) * 2016-09-09 2016-12-21 合肥永安绿地工程机械有限公司 A kind of vertical orientation vibrating wheel system
CN114645501A (en) * 2022-04-11 2022-06-21 青岛科泰重工机械有限公司 Vibration mechanism for switching composite vibration and circumferential vibration, vibration shaft assembly and steel wheel

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102747668A (en) * 2012-07-09 2012-10-24 池州腾虎机械科技有限公司 Road roller vibrating drum capable of converting among circular vibration, oscillation and complex vibration
CN102747668B (en) * 2012-07-09 2015-08-12 池州腾虎机械科技有限公司 A kind of vibration wheel of road roller that can be exchanged into circular vibration or vibration or complex vibration
CN106245500A (en) * 2016-09-09 2016-12-21 合肥永安绿地工程机械有限公司 A kind of vertical orientation vibrating wheel system
CN114645501A (en) * 2022-04-11 2022-06-21 青岛科泰重工机械有限公司 Vibration mechanism for switching composite vibration and circumferential vibration, vibration shaft assembly and steel wheel
CN114645501B (en) * 2022-04-11 2024-05-10 青岛科泰重工机械有限公司 Vibration mechanism for switching composite vibration and circumferential vibration, vibration shaft assembly and steel wheel

Similar Documents

Publication Publication Date Title
RU2008105388A (en) METHOD OF WORK OF POWER DRIVE ROTATION AND POWER PLANT FOR ITS IMPLEMENTATION
CN100529477C (en) Synchronous drive method for parallel installation of multiple eccentric shafts
CN202644355U (en) Road roller vibrating drum capable of shifting modes of circular vibration, oscillation or compound vibration
CN103835210A (en) Oscillation and vibration wheel of road roller
CN103438206B (en) The hydraulic control ungraded amplitude device of vibratory roller
CN104107796B (en) Vibration exciter for construction machinery
CN102747669B (en) A kind ofly can be exchanged into vertical or vibration or complex vibration vibration wheel of road roller
CN1948624B (en) Vibration wheel of directional vibration road roller
CN102747668B (en) A kind of vibration wheel of road roller that can be exchanged into circular vibration or vibration or complex vibration
CN104389258B (en) The excitation structure of vibration and oscillation immixture multifunction road roller compact wheel
CN101708622B (en) Vibration box of brick making machine
CN202644356U (en) Road roller vibrating drum with vibrating mode capable of being converted to vertical vibration mode or oscillating vibration mode or composite vibration mode
CN202270644U (en) Horizontal double-shaft high-efficiency vibrating screen
CN210315541U (en) Eccentric moment adjusting device of vibration hammer gear box
CN102720012B (en) Driving mechanism of level sewing machine
CN203741680U (en) Vibration wheel of road roller
CN201031928Y (en) Piling machine power head high-speed decelerator
CN201998294U (en) Vibrator of artificial stone brick making machine
CN202744929U (en) Switching mechanism of vibration function and oscillation function of road roller
CN101301651A (en) Forced synchronization large-sized double-shaft circular vibrating screen
CN203741677U (en) Vibration exciter used on multifunctional vibrating wheel
CN1948625B (en) Vibration wheel of directional vibration road roller
CN201026490Y (en) Forced synchronization large-scale biax circular vibrating screen
CN101024937A (en) Synchronous reverse driving mechanism mounted by multiple eccentric shaft series connected
CN201471572U (en) Novel brick-firing machine free vibration device

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: Road roller vibrating drum capable of converting among circular vibration, oscillation and complex vibration

Effective date of registration: 20161128

Granted publication date: 20130102

Pledgee: Guichi Chizhou Xingye Investment Development Co., Ltd.

Pledgor: TENGHU MECHANICAL TECHNOLOGIES (CHIZHOU) Co.,Ltd.

Registration number: 2016340000082

PLDC Enforcement, change and cancellation of contracts on pledge of patent right or utility model
CX01 Expiry of patent term

Granted publication date: 20130102

CX01 Expiry of patent term