CN109743970A - Belt is driven the safety catch of grass trimmer work cutter shaft - Google Patents

Belt is driven the safety catch of grass trimmer work cutter shaft Download PDF

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Publication number
CN109743970A
CN109743970A CN201910173223.0A CN201910173223A CN109743970A CN 109743970 A CN109743970 A CN 109743970A CN 201910173223 A CN201910173223 A CN 201910173223A CN 109743970 A CN109743970 A CN 109743970A
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CN
China
Prior art keywords
clutch
belt
grass trimmer
tension spring
brake frame
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.)
Pending
Application number
CN201910173223.0A
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Chinese (zh)
Inventor
王新江
王继铭
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.)
Wuxi Worldbest Kama Power Co Ltd
Original Assignee
Wuxi Worldbest Kama Power 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 Wuxi Worldbest Kama Power Co Ltd filed Critical Wuxi Worldbest Kama Power Co Ltd
Priority to CN201910173223.0A priority Critical patent/CN109743970A/en
Publication of CN109743970A publication Critical patent/CN109743970A/en
Pending legal-status Critical Current

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Abstract

The present invention relates to a kind of safety catches of belt transmission grass trimmer work cutter shaft, including clutch lever, clutch hand handle rotation fulcrum, clutch flexible shaft, clutch flexible shaft support, tensioning wheel, clutch tension spring, clutch tensioning bracket, clutch tensioning bracket rotation fulcrum, drive pulley, negative pulley wheel, belt, belt brake frame, belt brake frame rotation fulcrum, belt brake frame tension spring, brake shoes and clutch tension spring fixing seat.The shortcomings that being easy transfer the invention avoids follower during belt clutch transmission prevents to occur cutter shaft belt pulley surprisingly with transferring to cause personal accidental injury;The present invention has many advantages, such as that structure is simple, easy to make, economic and practical.

Description

Belt is driven the safety catch of grass trimmer work cutter shaft
Technical field
The present invention relates to a kind of safety catches of belt transmission grass trimmer work cutter shaft, and the invention belongs to agricultural machinery Technical field.
Background technique
In recent years, with the development of fruits and vegetables tea mower art, belt transmission clutch mechanism is on grass trimmer using special Extensively.But existing product is after belt separation, due to belt tension, belt length, the fixed evolution of belt etc., The phenomenon that generally existing cutter shaft follower transfer, be easy to cause work cutter shaft casualty accident, therefore there are biggish security risks.
Summary of the invention
The purpose of the present invention is overcoming the deficiencies in the prior art, providing one kind can be to avoid follower transfer phenomenon And use the safety catch of safer belt transmission grass trimmer work cutter shaft.
According to technical solution provided by the invention, the safety catch of the belt transmission grass trimmer work cutter shaft, packet Include clutch lever, clutch hand handle rotation fulcrum, clutch flexible shaft, clutch flexible shaft support, tensioning wheel, clutch tension spring, clutch tensioning branch Frame, clutch tensioning bracket rotation fulcrum, drive pulley, negative pulley wheel, belt, belt brake frame, the rotation of belt brake frame Fulcrum, belt brake frame tension spring, brake shoes and clutch tension spring fixing seat;
The clutch lever is hinged in grass trimmer rack by clutch hand handle rotation fulcrum, and clutch flexible shaft passes through clutch flexible shaft branch Seat be mounted in grass trimmer rack, the upper end of clutch flexible shaft is connected with clutch lever, the lower end of clutch flexible shaft be connected with from Tension spring is closed, clutch is tensioned bracket and is hinged in grass trimmer rack by clutch tensioning bracket rotation fulcrum, is tensioned bracket in clutch Upper end tensioning wheel is installed, the other end of the clutch tension spring be connected to tensioning wheel and clutch tensioning bracket rotation fulcrum it Between clutch tensioning bracket on;It is rotatably equipped with drive pulley and negative pulley wheel in grass trimmer rack, in drive pulley Wheel is equipped with belt with negative pulley wheel, and the tensioning wheel and belt cooperate;Belt brake frame passes through belt brake frame rotation branch It is point articulated to be fixed with brake shoes on the belt brake frame on the right side of belt brake frame rotation fulcrum in grass trimmer rack, brake Block compresses the negative pulley wheel;Clutch tension spring fixing seat is fixed in grass trimmer rack, is pacified in clutch tension spring fixing seat Equipped with belt brake frame tension spring, the lower end of belt brake frame tension spring is connected to the brake of the belt on the left of belt brake frame rotation fulcrum On vehicle frame.
The clutch lever is mounted in the grass trimmer rack of the top of belt.
In the grass trimmer rack for the lower section that the clutch tensioning bracket is hinged on belt, belt brake frame is hinged on clutch In the grass trimmer rack on the right side of locking bracket.
The shortcomings that being easy transfer the invention avoids follower during belt clutch transmission prevents that cutter shaft belt pulley occurs Surprisingly with transferring to cause personal accidental injury;The present invention has many advantages, such as that structure is simple, easy to make, economic and practical.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Specific embodiment
The present invention is further explained in the light of specific embodiments.
The safety catch of belt transmission grass trimmer work cutter shaft of the invention, including the rotation of clutch lever 1, clutch hand handle Turn fulcrum 2, clutch flexible shaft 3, clutch flexible shaft support 4, tensioning wheel 5, clutch tension spring 6, clutch tensioning bracket 7, clutch tensioning bracket Rotation fulcrum 8, drive pulley 9, negative pulley wheel 10, belt 11, belt brake frame 12, belt brake frame rotation fulcrum 13, Belt brake frame tension spring 14, brake shoes 15 and clutch tension spring fixing seat 16;
The clutch lever 1 is hinged in grass trimmer rack by clutch hand handle rotation fulcrum 2, clutch flexible shaft 3 by two from It closes flexible axle support 4 to be mounted in grass trimmer rack, the upper end of clutch flexible shaft 3 is connected with clutch lever 1, under clutch flexible shaft 3 End is connected with clutch tension spring 6, and clutch is tensioned bracket 7 and is hinged in grass trimmer rack by clutch tensioning bracket rotation fulcrum 8, Tensioning wheel 5 is installed in the upper end of clutch tensioning bracket 7, the other end of the clutch tension spring 6 is connected to tensioning wheel 5 and clutch It is tensioned on the clutch tensioning bracket 7 between bracket rotation fulcrum 8;Be rotatably equipped in grass trimmer rack drive pulley 9 with Negative pulley wheel 10, is equipped with belt 11 on drive pulley 9 and negative pulley wheel 10, and the tensioning wheel 5 cooperates with belt 11; Belt brake frame 12 is hinged in grass trimmer rack by belt brake frame rotation fulcrum 13, in belt brake frame rotation fulcrum 13 Brake shoes 15 is fixed on the belt brake frame 12 on right side, brake shoes 15 compresses the negative pulley wheel 10;Clutch tension spring is solid Reservation 16 is fixed in grass trimmer rack, and belt brake frame tension spring 14, belt brake are equipped in clutch tension spring fixing seat 16 The lower end of frame tension spring 14 is connected on the belt brake frame 12 in 13 left side of belt brake frame rotation fulcrum.
The clutch lever 1 is mounted in the grass trimmer rack of the top of belt 11.
In the grass trimmer rack for the lower section that the clutch tensioning bracket 7 is hinged on belt 11, belt brake frame 12 is hinged on Clutch is tensioned in the grass trimmer rack on the right side of bracket 7.
The clutch hand handle 1 is rotated around clutch hand handle rotation fulcrum 2;The both ends of clutch flexible shaft 3 are separately connected clutch hand 1 and clutch tension spring 6, the other end of clutch tension spring 6 is connected on clutch tensioning bracket 7;Clutch flexible shaft 3 is mounted on two clutches On flexible axle support 4;Clutch is tensioned bracket 7 and rotates around clutch tensioning bracket rotation fulcrum 8;Brake shoes 15 is fixed on belt brake On frame 12;Belt brake frame 12 is rotated around belt brake frame rotation fulcrum 13;Belt brake frame tension spring 14 is connected to belt brake On vehicle frame 12, brake shoes 15 compresses negative pulley wheel 10 always under belt discrete state.
Working principle of the present invention is as follows:
When clutch lever 1 is in disengaged position, negative pulley wheel 10 is not in working condition, and belt 11 is in discrete state, no Big torque can be transmitted.Brake shoes 15 compresses negative pulley wheel 10 always at this time, so as to avoid the various of negative pulley wheel 10 The transfer phenomenon of situation.
Need negative pulley wheel 10 work when, pull-up clutch hand handle 1 clockwise to operating position, by clutch flexible shaft 3, from Closing tension spring 6 drives clutch tensioning bracket 7 to rotate around clutch tensioning bracket rotation fulcrum 8, and tightening belt 11 realizes torsion transmitting, this When drive belt brake frame 12 rotated around belt brake frame rotation fulcrum 13, separate brake shoes 15 with negative pulley wheel 10, from And negative pulley wheel 10 can work.

Claims (3)

1. a kind of safety catch of belt transmission grass trimmer work cutter shaft, including clutch lever (1), clutch hand handle rotation branch Point (2), clutch flexible shaft (3), clutch flexible shaft support (4), tensioning wheel (5), clutch tension spring (6), clutch are tensioned bracket (7), clutch It is tensioned bracket rotation fulcrum (8), drive pulley (9), negative pulley wheel (10), belt (11), belt brake frame (12), belt Brake frame rotation fulcrum (13), belt brake frame tension spring (14), brake shoes (15) and clutch tension spring fixing seat (16);
It is characterized in that: the clutch lever (1) is hinged in grass trimmer rack by clutch hand handle rotation fulcrum (2), clutch is soft Axis (3) is mounted in grass trimmer rack by clutch flexible shaft support (4), upper end and clutch lever (1) phase of clutch flexible shaft (3) Even, the lower end of clutch flexible shaft (3) is connected with clutch tension spring (6), and clutch is tensioned bracket (7) and is tensioned bracket rotation branch by clutch Point (8) is hinged in grass trimmer rack, is equipped with tensioning wheel (5) in the upper end of clutch tensioning bracket (7), the clutch tension spring (6) the other end is connected in clutch tensioning bracket (7) between tensioning wheel (5) and clutch tensioning bracket rotation fulcrum (8);? Drive pulley (9) and negative pulley wheel (10) are rotatably equipped in grass trimmer rack, in drive pulley (9) and passive belt It takes turns (10) and is equipped with belt (11), the tensioning wheel (5) and belt (11) cooperate;Belt brake frame (12) passes through belt brake frame Rotation fulcrum (13) is hinged in grass trimmer rack, on the belt brake frame (12) on the right side of belt brake frame rotation fulcrum (13) It is fixed with brake shoes (15), brake shoes (15) compresses the negative pulley wheel (10);Clutch tension spring fixing seat (16) is fixed on In grass trimmer rack, belt brake frame tension spring (14), belt brake frame tension spring are installed in clutch tension spring fixing seat (16) (14) lower end is connected on the belt brake frame (12) on the left of belt brake frame rotation fulcrum (13).
2. the safety catch of belt transmission grass trimmer work cutter shaft as described in claim 1, it is characterized in that: the clutch Handle (1) is mounted in the grass trimmer rack of the top of belt (11).
3. the safety catch of belt transmission grass trimmer work cutter shaft as described in claim 1, it is characterized in that: the clutch In the grass trimmer rack for the lower section that tensioning bracket (7) is hinged on belt (11), belt brake frame (12) is hinged on clutch tensioning branch In the grass trimmer rack on the right side of frame (7).
CN201910173223.0A 2019-03-07 2019-03-07 Belt is driven the safety catch of grass trimmer work cutter shaft Pending CN109743970A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910173223.0A CN109743970A (en) 2019-03-07 2019-03-07 Belt is driven the safety catch of grass trimmer work cutter shaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910173223.0A CN109743970A (en) 2019-03-07 2019-03-07 Belt is driven the safety catch of grass trimmer work cutter shaft

Publications (1)

Publication Number Publication Date
CN109743970A true CN109743970A (en) 2019-05-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910173223.0A Pending CN109743970A (en) 2019-03-07 2019-03-07 Belt is driven the safety catch of grass trimmer work cutter shaft

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112425343A (en) * 2020-11-23 2021-03-02 江苏沃得植保机械有限公司 Lawn mower and self-adaptation belt transmission thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08303540A (en) * 1995-04-28 1996-11-19 Kioritz Corp Belt tension type clutch device
CN205755544U (en) * 2016-05-26 2016-12-07 常州格力博有限公司 Brake structure and hay mover thereof
CN107864738A (en) * 2017-10-19 2018-04-03 嘉兴御创电力科技有限公司 Hay mover
CN209732043U (en) * 2019-03-07 2019-12-06 无锡华源凯马发动机有限公司 Safety brake device for working cutter shaft of belt-driven mower

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08303540A (en) * 1995-04-28 1996-11-19 Kioritz Corp Belt tension type clutch device
CN205755544U (en) * 2016-05-26 2016-12-07 常州格力博有限公司 Brake structure and hay mover thereof
CN107864738A (en) * 2017-10-19 2018-04-03 嘉兴御创电力科技有限公司 Hay mover
CN209732043U (en) * 2019-03-07 2019-12-06 无锡华源凯马发动机有限公司 Safety brake device for working cutter shaft of belt-driven mower

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
俞国胜: "草坪养护机械", 31 August 2004, 中国农业出版社, pages: 168 *
李继志、陈荣振: "石油钻采机械概论", 31 July 2001, 石油大学出版社, pages: 178 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112425343A (en) * 2020-11-23 2021-03-02 江苏沃得植保机械有限公司 Lawn mower and self-adaptation belt transmission thereof

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