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GB2329370A - Securing a circular member to the end of a tubular body - Google Patents

Securing a circular member to the end of a tubular body Download PDF

Info

Publication number
GB2329370A
GB2329370A GB9720002A GB9720002A GB2329370A GB 2329370 A GB2329370 A GB 2329370A GB 9720002 A GB9720002 A GB 9720002A GB 9720002 A GB9720002 A GB 9720002A GB 2329370 A GB2329370 A GB 2329370A
Authority
GB
United Kingdom
Prior art keywords
tube
tubular body
bearing housing
circular member
bearing
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.)
Granted
Application number
GB9720002A
Other versions
GB9720002D0 (en
GB2329370B (en
Inventor
John Pyle
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 GB9720002A priority Critical patent/GB2329370B/en
Publication of GB9720002D0 publication Critical patent/GB9720002D0/en
Publication of GB2329370A publication Critical patent/GB2329370A/en
Application granted granted Critical
Publication of GB2329370B publication Critical patent/GB2329370B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C57/00—Shaping of tube ends, e.g. flanging, belling or closing; Apparatus therefor, e.g. collapsible mandrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/565—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits involving interference fits, e.g. force-fits or press-fits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1222—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a lapped joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1224—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a butt joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5344—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially annular, i.e. of finite length, e.g. joining flanges to tube ends
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/61—Joining from or joining on the inside
    • B29C66/612—Making circumferential joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G39/00—Rollers, e.g. drive rollers, or arrangements thereof incorporated in roller-ways or other types of mechanical conveyors 
    • B65G39/02—Adaptations of individual rollers and supports therefor
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
    • F16C13/02—Bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/32—Wheels, pinions, pulleys, castors or rollers, Rims
    • B29L2031/324—Rollers or cylinders having an axial length of several times the diameter, e.g. embossing, pressing or printing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)

Abstract

A method of securing a circular member to the end of a tubular body and more particularly to a conveyor idler roller in which a bearing housing 3 is secured to each end of a cylindrical tube 1. The bearing housings 3 each having a circumferential groove 9. Each bearing housing 3 is at least partly fittable in an end of the cylindrical tube 1 and the respective ends 12 of the tube 1 deformed into the circumferential grooves 9. The tube 1 and bearing housings 3 may be made of a plastics material. To secure the bearing housings 3 to the tube 1, the end of the tube may be pre-heated and the bearing housing pressed into the tube end by an axial force applied to a die 10.

Description

A METHOD OF SECURING A CIRCULAR MEMBER TO THE END OF A TUBULAR BODY DES^RT?TIQN THIS INVENTION relates to a method of securing a circular member to the end of a tubular body and, more particularly, but not exclusively, to the securing of a bearing housing to the end of the tube of a conveyor idler roller.
/The invention The invention further extends to a tubular body and circular member which are secured to each other according to the invention.
BACKGROUND TO THE INVENTION Conventionally, a conveyor idler roller is manufactured from a circular cylindrical steel tube. A bearing housing is fitted to each of the ends of the steel tube. A bearing is mounted in each of the housings and the bearings are mounted on a shaft. The shaft is mounted in a frame.
Conveyor belts are often used under dusty conditions, and seizure of the bearings of an idler roller is not uncommon.
When this happens, the conveyor belt can eventually wear through the steel tube leaving a sharp edge which may catch against projections and joints of the conveyor belt. This will normally damage the conveyor belt.
/When the When the bearing of several idler rollers have seized, it results in high belt drag which will increase power consumption and may eventually lead to an overload trip of the conveyor electrical drive motor.
The tube of the idler rollers may be manufactured from a plastics material. With such a plastics tube, it is, however, a problem to secure a bearing housing to each of the ends of the tube.
OBJECT OF THE INVENTION It is the object of this invention to provide a method of securing a circular member to the end of a tubular body, and more particularly, to securing a bearing housing to the end of a plastics tubular body.
SUMMARY OF THE INNENTION According to this invention, there is provided a method of securing a circular member to the end of a tubular body, the method comprising positioning a circular member circular member having a circumferential groove, in an open end of the tubular body and deforming the open end of the tubular body into the circumferential groove.
A further feature of this invention provides for the circular member to be a bearing housing.
Further features of this invention provide for the tubular body to be the tube of a conveyor belt idler roller, for the tubular body to be made of a plastics material, and for the bearing housing to be made of a plastics material.
The invention also extends to a conveyor idler roller comprising a cylindrical tube made of a plastics material, two bearing housings each having a circumferential groove, each bearing housing being at least partly fittable in an end of the cylindrical tube and the ends of the cylindrical tube being deformed into the circumferential grooves of the bearing housings.
BRIEF DESCRIPTION OF THE DRAWINGS A preferred embodiment of the invention is described below, by way of example only, and with reference to the accompanying drawings in which: Figure 1 is a cross-sectional view of one end of a conveyor idler roller; and Figure 2 is a cross-sectional outline view of the conveyor idler roller shown in Figure 1 also showing an end tube former.
BRIEF DESCRIPTION OF THE DRAWINGS Referring to Figure 1, a circular cylindrical tube (1) of a conveyor belt idler roller (2) is shown.
The tube (1) is made of a plastics material which preferably is unplasticized polyvinylchloride ("UPVC").
A bearing housing (3) is secured to each end of the tube (1). The bearing housing (3) has an axial /opening (4) opening (4) therethrough. The bearing housing (3) further has an axial recess (5) at its inner end in which is fitted a suitable bearing (6). The bearing (6) is carried on a shaft (7) which passes through an opening (4). The ends of the shaft (6) are appropriately machined as indicated at (8) for mounting in a support frame (not shown) in conventional manner.
A plurality of such conveyor belt idler rollers are mounted in the support frame to support a conveyor belt running over them.
This invention is concerned with the mounting of the bearing housing (3) to the end of the tube (1).
The bearing housing (3) has formed therein a circumferential "V"-shaped groove (9).
To secure the bearing housing (3) to the tube, the end of the tube (1) is pre-heated. The bearing housing is located in a tube end die (10) shown in Figure 2. The bearing housing (3) is pressed into the tube (1) and an axial force is applied on the /die (10).
die (10). The die (10) is internally shaped to fit tightly over the tube (1), and further has an internal shoulder (11) which, in use, exerts a radially inward force on the end (12) of the tube (1) which results in the deformation of the end (12) of the tube into the groove (9).
A circumferential recess (13) is provided at the inner end of the axial recess (5). The recess (13) serves as a reservoir for a lubricant. The recess (13) may also have a sealing device (14) which inhibits the ingress of moisture and dirt into the bearing. The sealing device will be manufactured from a non ferrous material, preferably a copper alloy.
It must be understood that variations can be made to the above described embodiment without departing from the scope of the invention.
The circumferential groove in the bearing housing may have any shape, and its position on the circumference may be varied.
/Other methods Other methods may also be employed to deform the tube end (12) into the groove (9).

Claims (8)

  1. What is claimed is: 1. A method of securing a circular member to the end of a tubular body, the method comprising positioning a circular member having a circumferential groove, in an open end of the tubular body and deforming the open end of the tubular body into the circumferential groove.
  2. 2. A method as claimed in claim 1 in which the circular member is a bearing housing.
  3. 3. A method as claimed in claim 1 or 2 in which the tubular body is the tube of a conveyor belt idler roller.
  4. 4. A method as claimed in claim 3 in which the bearing housing and tube are made of a plastics material.
    /
  5. 5. A conveyor 5. A conveyor idler roller comprising a cylindrical tube made of a plastics material, two bearing housings each having a circumferential groove, each bearing housing being at least partly fittable in an end of the cylindrical tube and the ends of the cylindrical tube being deformed into the circumferential grooves of the bearing housings.
  6. 6. A conveyor idler roller as claimed in claim 5 in which the bearing housing includes a sealing device.
  7. 7. A method of securing a circular member to the end of a tubular body substantially as herein described with reference to figure 2.
  8. 8. A conveyor idler roller substantially as herein described with reference to and as illustrated in figure 1.
GB9720002A 1997-09-20 1997-09-20 A method of securing a bearing housing to the end of a conveyor roller tubular body Expired - Fee Related GB2329370B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9720002A GB2329370B (en) 1997-09-20 1997-09-20 A method of securing a bearing housing to the end of a conveyor roller tubular body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9720002A GB2329370B (en) 1997-09-20 1997-09-20 A method of securing a bearing housing to the end of a conveyor roller tubular body

Publications (3)

Publication Number Publication Date
GB9720002D0 GB9720002D0 (en) 1997-11-19
GB2329370A true GB2329370A (en) 1999-03-24
GB2329370B GB2329370B (en) 2002-04-10

Family

ID=10819375

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9720002A Expired - Fee Related GB2329370B (en) 1997-09-20 1997-09-20 A method of securing a bearing housing to the end of a conveyor roller tubular body

Country Status (1)

Country Link
GB (1) GB2329370B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003020620A1 (en) * 2001-09-06 2003-03-13 Bezanmetal S.L. Supporting roller for an open conveyor belt and the use thereof
WO2010088719A1 (en) 2009-02-03 2010-08-12 Leslie Donald Dunn Stub shaft and bearing assembly and conveyor idler roller incorporating same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1339527A (en) * 1972-02-04 1973-12-05 Vom Stein Ohg Hans Roller
GB1578349A (en) * 1976-09-10 1980-11-05 Bridge Bearings Bearing assemblies
US4477126A (en) * 1981-02-26 1984-10-16 Dowty Meco Limited Locking devices
GB2241558A (en) * 1989-06-27 1991-09-04 James Murphy A conveyor roller

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1339527A (en) * 1972-02-04 1973-12-05 Vom Stein Ohg Hans Roller
GB1578349A (en) * 1976-09-10 1980-11-05 Bridge Bearings Bearing assemblies
US4477126A (en) * 1981-02-26 1984-10-16 Dowty Meco Limited Locking devices
GB2241558A (en) * 1989-06-27 1991-09-04 James Murphy A conveyor roller

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003020620A1 (en) * 2001-09-06 2003-03-13 Bezanmetal S.L. Supporting roller for an open conveyor belt and the use thereof
WO2010088719A1 (en) 2009-02-03 2010-08-12 Leslie Donald Dunn Stub shaft and bearing assembly and conveyor idler roller incorporating same
EP2394067A4 (en) * 2009-02-03 2017-04-05 Leslie Donald Dunn Stub shaft and bearing assembly and conveyor idler roller incorporating same

Also Published As

Publication number Publication date
GB9720002D0 (en) 1997-11-19
GB2329370B (en) 2002-04-10

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20030920