GB2445361A - Centrifugal clutch shoe pre-bedding and dynamic balancing machine - Google Patents

Centrifugal clutch shoe pre-bedding and dynamic balancing machine Download PDF

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Publication number
GB2445361A
GB2445361A GB0700055A GB0700055A GB2445361A GB 2445361 A GB2445361 A GB 2445361A GB 0700055 A GB0700055 A GB 0700055A GB 0700055 A GB0700055 A GB 0700055A GB 2445361 A GB2445361 A GB 2445361A
Authority
GB
United Kingdom
Prior art keywords
clutch
hub
bedding
shoes
machine
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.)
Withdrawn
Application number
GB0700055A
Other versions
GB0700055D0 (en
Inventor
Simon Dockwray
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB0700055A priority Critical patent/GB2445361A/en
Publication of GB0700055D0 publication Critical patent/GB0700055D0/en
Publication of GB2445361A publication Critical patent/GB2445361A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M1/00—Testing static or dynamic balance of machines or structures
    • G01M1/30—Compensating imbalance
    • G01M1/36—Compensating imbalance by adjusting position of masses built-in the body to be tested
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/36—Single-purpose machines or devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D13/00—Friction clutches
    • F16D13/58—Details
    • F16D13/60—Clutching elements
    • F16D13/62—Clutch-bands; Clutch shoes; Clutch-drums
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D43/00—Automatic clutches
    • F16D43/02—Automatic clutches actuated entirely mechanically
    • F16D43/04—Automatic clutches actuated entirely mechanically controlled by angular speed
    • F16D43/14—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members
    • F16D43/18—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members with friction clutching members
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00—Testing of machine parts
    • G01M13/02—Gearings; Transmission mechanisms
    • G01M13/022—Power-transmitting couplings or clutches
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D43/00—Automatic clutches
    • F16D43/02—Automatic clutches actuated entirely mechanically
    • F16D43/04—Automatic clutches actuated entirely mechanically controlled by angular speed
    • F16D43/14—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members
    • F16D2043/145—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members the centrifugal masses being pivoting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2250/00—Manufacturing; Assembly

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)

Abstract

A machine to which a centrifugal automatic clutch plate 11 can be attached and spun at a speed that will force the clutch shoes outwards onto a hub 6 with an abrasive surface 9 so that the surfaces of the clutch shoes are bedded in much more quickly than under normal conditions and by using a second hub 7, the clutch shoes can be balanced at the correct speed so they all make contact at the same time and therefore give maximum grip. The clutch plate 11 is attached to a shaft 10 which is driven, via a tooth belt 2, by a variable speed motor (3, fig 2) operated by a motor controller (4) which is attached to a rev counter (3). The bedding in hub 6 may be made of metal while the balancing second hub 7 may be mad of plastics.

Description

2445361
Centrifugal Clutch Pre-bedding and Dynamic
Balancing Hub
The invention relates to a method for bedding in new clutch pads and balancing the shoes in an automatic clutch on a motorbike. It enables new clutch pads to be bedded in and for the force of the shoes to the driving hub to be equally balanced via a variable speed driven shaft and hub fitted with either a round metal hub lined with abrasive paper for bedding in shoe pads or a round metal hub fitted with two or three proximity sensors for balancing shoes.
This type of clutch can take a considerable length of time spent riding (depending on the weight of the rider) to bed in. The shoe force is centrifugal and opposed by spring pressure. If this spring pressure is unequal, the driving force is unequal which slows
I'. the response of the clutch when pulling away.
• •••
• •••
• •
An object of this invention is to speed up the bedding in of the clutch shoe pads to
: their maximum efficiency within 30 minutes running time. It also enables the spring
• •
.tension to be dynamically balanced on the shoes at a given RPM thus enabling maximum friction giving increased acceleration when racing and equal wear to the
• ••
"••••* clutch shoes so prolonging their life.
• • ••
• • •
» •
The invention consists of a machined fixed metal hub on a drive shaft driven by a variable speed DC motor and either another fixed metal hub lined with abrasive paper for bedding in or a fixed plastic hub fitted with high frequency inductive proximity sensors, for dynamic balancing. Inside the hub, the clutch backplate and shoes spin at various speeds to achieve the required RPM.
Using a motor controller to adjust the speed of the motor, via a toothed drive belt, the drive shaft can be driven at various speeds to cater for dynamic balancing at different RPM's.
The bedding hub and the sensing hub are manufactured to suit the type and size of clutch to be bedded in and balanced
For the proximity switches to detect the clutch shoes, a thin strip of metallic foil must be placed in the correct position a, b or c on each shoe (figure 4).
The fixed drive hub, DC motor, controller and transformer can be mounted on a wooden or similar sturdy material base for portability if desired.
Figure 1 shows a front view of the Driven Shaft Housing (1) the Variable Speed Motor (3), Toothed Belt (2) and the Motor Controller (4) & Rev Counter (13) all mounted on a base (12).
Figure 2 shows a top view of the Figure 1 plus the Transformer (5) and sectional views of the Driven Shaft (10) & Bearings (16), the Bedding Hub (6) and Balancing Hub (7).
Figure 3 shows a top sectional view of the Driven Shaft (10) and Fixed Housing (1), plus the Bedding Hub (6) and Balancing Hub (7), and a Clutch Plate (11).
Figure 4 shows a Clutch Shoe and lining (14) with the metallic strip (15) in position 'a'.
As shown in Figure 2, the Driven Shaft (10) is housed in a fixed, aluminium Housing (1) containing Bearings (16) and is driven by a Toothed Belt (2) attached to a Variable Speed Motor (3) which is controlled by the Motor Controller (4). The transformer supplies 24v DC to the Rev Counter (13) and the Proximity Sensors (8). The Driven Shaft (10) turns at various speeds inside the Housing (1) by means of a Variable Speed Motor (3) through a combination of step up gearing to achieve the required RPM.
The Clutch Plate (11)-Figure 3 - which houses the Clutch Shoes (14) shown in Figure 4 - is fitted on to the Driven Shaft (10). When the Clutch Plate is driven at speed, the Clutch Shoes are centrifiigally forced into contact with the Abrasive Paper Lining (9). After a short period of time, the Clutch Shoe Linings will be pre-bedded.
The Bedding Hub (6) is then removed.
Adhesive Metallic Strips (15) are then placed on the Clutch Shoe Lining (Figure 4) in position 'a', 'b' or 'c\ Each Shoe (some Clutches have two and some have three) should have the Metallic Strip in a different position relative to the proximity sensors (8) in the Balancing Hub (7) (Figure 3).
The Dynamic Balancing Hub (7) can then be fitted to the Driven Shaft Housing (1). The Clutch Plate is then slowly accelerated using the Motor Controller (4) until the first Proximity Sensor (8) is illuminated. The RPM should be noted via the Rev Counter (13) and the Shoes adjusted until all Proximity Sensors illuminate at the same time and at the required RPM. The Clutch is now Dynamically Balanced and ready for use.

Claims (5)

Claims
1. A machine with a variable speed motor which drives a shaft that an automatic clutch plate can be fitted to, to enable pre-bedding and balancing of the clutch shoes.
2. A machine that pre-beds clutch shoes to a point where, when fitted to the engine, the maximum efficiency of the clutch can be reached after minimal running time.
3. A machine that detects the movement of each clutch shoe as a result of the centrifugal force when spinning at the required RPM so enabling the shoes to be balanced with equal pressure applied to the clutch hub by each shoe, so maximising efficiency.
4. A machine made from metal or plastic material, or a combination of these materials.
5.
A centrifugal clutch pre-bedding and dynamic balancing hub as herein described and illustrated in the accompanying drawings.
GB0700055A 2007-01-02 2007-01-02 Centrifugal clutch shoe pre-bedding and dynamic balancing machine Withdrawn GB2445361A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0700055A GB2445361A (en) 2007-01-02 2007-01-02 Centrifugal clutch shoe pre-bedding and dynamic balancing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0700055A GB2445361A (en) 2007-01-02 2007-01-02 Centrifugal clutch shoe pre-bedding and dynamic balancing machine

Publications (2)

Publication Number Publication Date
GB0700055D0 GB0700055D0 (en) 2007-02-07
GB2445361A true GB2445361A (en) 2008-07-09

Family

ID=37759203

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0700055A Withdrawn GB2445361A (en) 2007-01-02 2007-01-02 Centrifugal clutch shoe pre-bedding and dynamic balancing machine

Country Status (1)

Country Link
GB (1) GB2445361A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104759954A (en) * 2015-05-06 2015-07-08 广州大学 Prestress grinding method for revolved body workpiece
WO2015079236A3 (en) * 2013-11-27 2015-11-19 Aston Martin Lagonda Limited Brake conditioning
CN108775842A (en) * 2018-07-10 2018-11-09 安徽悦众车身装备有限公司 A kind of automotive hub dynamic balancing detecting tool
CN112709766A (en) * 2021-01-18 2021-04-27 博格华纳联合传动系统有限公司 Dynamic balance optimization method for high-pressure wet-type double clutches
US12000329B2 (en) 2018-12-17 2024-06-04 Aston Martin Lagonda Limited Assemblies for engines

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3910107A (en) * 1974-04-01 1975-10-07 Burroughs Corp Apparatus for running-in and automatically testing electrically actuated clutches
US4361988A (en) * 1978-06-29 1982-12-07 Hans Gramlich Brake disc grinding method and apparatus
EP0075064A1 (en) * 1981-09-18 1983-03-30 Honda Giken Kogyo Kabushiki Kaisha Abrading device for a brake disc
JPH10253500A (en) * 1997-03-13 1998-09-25 Honda Motor Co Ltd Running-in method for clutch inspection
DE102005003039A1 (en) * 2005-01-22 2006-07-27 Margit Wanner Motorcycle tires machining device, has abrasive device provided for removal of predetermined areas of running surface of wheels, movable on motorcycle tires in direction by adjusting unit and detachably lockable in pretendable position

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3910107A (en) * 1974-04-01 1975-10-07 Burroughs Corp Apparatus for running-in and automatically testing electrically actuated clutches
US4361988A (en) * 1978-06-29 1982-12-07 Hans Gramlich Brake disc grinding method and apparatus
EP0075064A1 (en) * 1981-09-18 1983-03-30 Honda Giken Kogyo Kabushiki Kaisha Abrading device for a brake disc
JPH10253500A (en) * 1997-03-13 1998-09-25 Honda Motor Co Ltd Running-in method for clutch inspection
DE102005003039A1 (en) * 2005-01-22 2006-07-27 Margit Wanner Motorcycle tires machining device, has abrasive device provided for removal of predetermined areas of running surface of wheels, movable on motorcycle tires in direction by adjusting unit and detachably lockable in pretendable position

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015079236A3 (en) * 2013-11-27 2015-11-19 Aston Martin Lagonda Limited Brake conditioning
CN105934604A (en) * 2013-11-27 2016-09-07 埃斯顿·马汀·拉共达有限公司 Brake conditioning
JP2017500500A (en) * 2013-11-27 2017-01-05 アストン マーティン ラゴンダ リミテッドＡｓｔｏｎ Ｍａｒｔｉｎ Ｌａｇｏｎｄａ Ｌｉｍｉｔｅｄ Brake break-in
US9989118B2 (en) 2013-11-27 2018-06-05 Aston Martin Lagonda Limited Brake conditioning
EP3715662A1 (en) * 2013-11-27 2020-09-30 Aston Martin Lagonda Limited Brake conditioning
CN104759954A (en) * 2015-05-06 2015-07-08 广州大学 Prestress grinding method for revolved body workpiece
CN108775842A (en) * 2018-07-10 2018-11-09 安徽悦众车身装备有限公司 A kind of automotive hub dynamic balancing detecting tool
US12000329B2 (en) 2018-12-17 2024-06-04 Aston Martin Lagonda Limited Assemblies for engines
CN112709766A (en) * 2021-01-18 2021-04-27 博格华纳联合传动系统有限公司 Dynamic balance optimization method for high-pressure wet-type double clutches

Also Published As

Publication number Publication date
GB0700055D0 (en) 2007-02-07

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