GB2600727A - Preloading bearing element - Google Patents

Preloading bearing element Download PDF

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Publication number
GB2600727A
GB2600727A GB2017546.9A GB202017546A GB2600727A GB 2600727 A GB2600727 A GB 2600727A GB 202017546 A GB202017546 A GB 202017546A GB 2600727 A GB2600727 A GB 2600727A
Authority
GB
United Kingdom
Prior art keywords
annular portion
bearing element
central opening
stamped plate
projections
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
GB2017546.9A
Other versions
GB2600727B (en
GB202017546D0 (en
Inventor
Scutaru Mihai
Luca Dragos
Petrisor Alexandra
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.)
Continental Teves AG and Co OHG
Continental Automotive Romania SRL
Original Assignee
Continental Teves AG and Co OHG
Continental Automotive Romania SRL
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 Continental Teves AG and Co OHG, Continental Automotive Romania SRL filed Critical Continental Teves AG and Co OHG
Priority to GB2017546.9A priority Critical patent/GB2600727B/en
Publication of GB202017546D0 publication Critical patent/GB202017546D0/en
Publication of GB2600727A publication Critical patent/GB2600727A/en
Application granted granted Critical
Publication of GB2600727B publication Critical patent/GB2600727B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/36—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition including a pilot valve responding to an electromagnetic force
    • B60T8/3615—Electromagnetic valves specially adapted for anti-lock brake and traction control systems
    • B60T8/3675—Electromagnetic valves specially adapted for anti-lock brake and traction control systems integrated in modulator units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/36—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition including a pilot valve responding to an electromagnetic force
    • B60T8/3615—Electromagnetic valves specially adapted for anti-lock brake and traction control systems
    • B60T8/3675—Electromagnetic valves specially adapted for anti-lock brake and traction control systems integrated in modulator units
    • B60T8/368—Electromagnetic valves specially adapted for anti-lock brake and traction control systems integrated in modulator units combined with other mechanical components, e.g. pump units, master cylinders
    • 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
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
    • F16C19/16—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
    • F16C19/163—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls with angular contact
    • 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
    • F16C25/00—Bearings for exclusively rotary movement adjustable for wear or play
    • F16C25/06—Ball or roller bearings
    • F16C25/08—Ball or roller bearings self-adjusting
    • F16C25/083—Ball or roller bearings self-adjusting with resilient means acting axially on a race ring to preload the bearing
    • 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
    • F16C27/00—Elastic or yielding bearings or bearing supports, for exclusively rotary movement
    • F16C27/06—Elastic or yielding bearings or bearing supports, for exclusively rotary movement by means of parts of rubber or like materials
    • F16C27/066—Ball or roller bearings
    • 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
    • F16C2229/00—Setting preload
    • 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
    • F16C2326/00—Articles relating to transporting
    • F16C2326/01—Parts of vehicles in general
    • 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
    • F16C2326/00—Articles relating to transporting
    • F16C2326/20—Land vehicles
    • 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
    • F16C2380/00—Electrical apparatus
    • F16C2380/26—Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Transportation (AREA)
  • Fluid Mechanics (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

A pre-loading bearing element 400 is provided. The pre-loading bearing element 400 is configured to be inserted or insertable into a busbar of a brushless DC motor. The pre-loading bearing element 400 consists of a stamped plate having: a top surface; an annular portion 410 delimited by a central opening (o) and from which a multitude of projections 420 extend radially outwards. At the top surface a rubber ring 430 is over-moulded on the annular portion 410. A method of manufacturing such a pre-loading bearing element is also disclosed.

Description

Description
Preloading bearing element The present invention relates to a preloading bearing element configured to be used within an electrohydraulic braking unit of a vehicle.
The bearing arrangement for a rotating component, e.g., a shaft, generally requires two bearings to support and locate the component radially and axially relative to the stationary part of the machine. Bearings are largely used as components of braking operating units in the automotive industry. EF1882295 describes such a brake operating unit wherein a pis-ton-pump is connected to an electric motor by a gear, and a rotor mounting support comprising at least two spaced rotor bearings, of which at least one so-called A-bearing supports a shaft, and a so-called B-bearing that is supported in a pot-shaped motor housing.
In this context, properly preloading a bearing increases its lifetime and eliminate vibration or noise that could occur when a clearance appears due to lack of manufacturing precision or wear. However, the seat for the washer spring, namely the bearing shield, is a massive component with a complex design since it needs to withstand high preload constant forces through washer spring, with values that goes from 170N up to 300N. Such a complex design means additional manufacturing costs, as well as loss of space in axial direction -which becomes important when such a component is subject to packaging.
For these reasons, the technical problem to be solved is to design a replacing component able to perform the same functional role as the washer spring, namely preloading a bearing, but obtained with lower costs.
The object of the present invention is to solve the deficiencies of the mentioned prior art and to provide a solution to preload the A-bearing with a different design, material and shape.
This object is achieved according to the invention by means of the technical characteristics mentioned in the independent claim, namely a preloading bearing element.
Further advantageous embodiments are the subject matter of the dependent claims.
The subject-matter of the present invention is a preloading bearing element for a brushless DC motor, namely an impeller configured to be inserted or insertable into a busbar of the brushless DC motor. The mentioned impeller is a stamped plate having a top surface, an annular portion delimited by a central opening and from which a plurality of projections extend radially. A ring is overmolded on the annular portion, at the top surface.
The main advantages of using the impeller according to invention are: - a hardened bearing surface to create more uniform torque control at a reduced cost; - protection against looseness resulting from vibration and corrosion.
Further special features and advantages of the present invention can be taken from the following description of an advantageous embodiment by way of the accompanying drawings: -Fig. 1 is an exploded view of a prior art motor assembly from a brake operating unit, the motor assembly including a bearing shield and a washer spring; -Fig. 2 is a sectional view of a brake operating unit provided with a preloading bearing element according to invention; Fig. 3 is a view of the preloading bearing element; Fig. 4 shows a sectional view of a preloading bearing element mounted into a modified busbar of a motor assembly.
Referring now to Fig. 1, it shows the prior art design of a motor assembly, component of a brake operating unit of a vehicle. In the depicted prior art configuration, the motor assembly comprises a motor housing 1, a motor busbar 2, a ball bearing 3, a spring washer 4 and a bearing shield 5.
Fig. 2 shows a sectional view of a brake operating unit, comprising a motor assembly provided with a busbar 200 modified to be able to receive and hold in place a preloading bearing element 400, in order to preload a bearing 300.
Fig. 3 shows the details of the preloading bearing element 400 configured to be inserted or insertable into the modified bus-bar 200. Preloading bearing element consists into a stamped plate having an annular portion 410 delimited by a central opening o and from which a multitude of projections 420 extend radially. Projections 420 are symmetrically placed around the annular portion 410. On top surface of annular portion 410 a rubber ring 430 is overmolded. Preloading bearing element is made of plastic or non-magnetic steel.
Fig. 4 illustrates a side view of the modified busbar 200, provided with holding clips and anti-rotation features (not referenced), able to limit the movements of the preloading bearing element, once inserted onto the modified busbar.
In order to obtain the preloading bearing element, there is provided also a method of manufacturing comprising the following steps: - providing a sheet of material; -stamping the sheet of material in order to form a stamped plate with projections extending radially and symmetrically placed around an annular portion; - punching a central opening on the stamped plate; and - overmolding a rubber ring over the stamped plate on the annular portion between the central opening and the projec-tions.
However, while certain embodiments of the present invention have been described in detail, those familiar with the art to which this invention relates will recognize various alternative designs and embodiments for practicing the invention as defined by the following claims.

Claims (5)

  1. Patent claims 1. Preloading bearing element configured to be inserted or insertable in a busbar of a brushless DC motor, consisting into a stamped plate having a top surface and an annular portion delimited by a central opening, from which annular portion a multitude of projections extend radially.
  2. 2. Impeller according to claim 1, wherein at the top surface 10 a rubber ring is overmolded on the annular portion.
  3. 3. Impeller according to claim 1, wherein the stamped plate is made of plastic or non-magnetic steel.
  4. 4. Impeller according to claim 1, wherein up to six projections are symmetrically placed around the central opening.
  5. 5. A method for manufacturing preloading bearing element for a brushless DC motor, the method comprising of: providing a sheet of material; stamping the sheet of material in order to form a stamped plate with radially extending projections symmetrically placed around the annular portion; punching a central opening on the stamped plate; and overmolding a rubber ring over the stamped plate on the annular portion between the central opening and the projections.Amendments to the claims have been filed as follwos:-Patent claims 1. Preloading bearing element, namely an impeller configured to be inserted or insertable in a busbar of a brushless DC motor, wherein the impeller is a stamped plate having a top surface and an annular portion delimited by a central opening, from which annular portion a multitude of projections extend radially.2. Impeller according to claim 1, wherein at the top surface a rubber ring is overmolded on the annular portion.3. Impeller according to claim 1, wherein the stamped plate is made of plastic or non-magnetic steel. -- 15C\I 4. Impeller according to claim 1, wherein up to six projections are symmetrically placed around the central opening.CD5. A method for manufacturing preloading bearing element for (t) 20 a brushless DC motor, the method comprising of: CDproviding a sheet of material; stamping the sheet of material in order to form a stamped plate with radially extending projections symmetrically placed around the annular portion; punching a central opening on the stamped plate; and overmolding a rubber ring over the stamped plate on the annular portion between the central opening and the projections.
GB2017546.9A 2020-11-06 2020-11-06 Preloading bearing element Active GB2600727B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2017546.9A GB2600727B (en) 2020-11-06 2020-11-06 Preloading bearing element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2017546.9A GB2600727B (en) 2020-11-06 2020-11-06 Preloading bearing element

Publications (3)

Publication Number Publication Date
GB202017546D0 GB202017546D0 (en) 2020-12-23
GB2600727A true GB2600727A (en) 2022-05-11
GB2600727B GB2600727B (en) 2023-05-10

Family

ID=74046356

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2017546.9A Active GB2600727B (en) 2020-11-06 2020-11-06 Preloading bearing element

Country Status (1)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB299810A (en) * 1927-11-01 1929-10-17 Gen Electric Improvements in and relating to bearings
EP1882295A1 (en) * 2005-05-13 2008-01-30 Continental Teves AG & Co. oHG Electrohydraulic aggregate with a compact construction
US20120243817A1 (en) * 2011-03-21 2012-09-27 Maxon Motor Ag Spring washer and a bearing block including a spring washer
WO2020079090A1 (en) * 2018-10-18 2020-04-23 Thyssenkrupp Presta Ag Spring element for a reduction gear of an electromechanical steering system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB299810A (en) * 1927-11-01 1929-10-17 Gen Electric Improvements in and relating to bearings
EP1882295A1 (en) * 2005-05-13 2008-01-30 Continental Teves AG & Co. oHG Electrohydraulic aggregate with a compact construction
US20120243817A1 (en) * 2011-03-21 2012-09-27 Maxon Motor Ag Spring washer and a bearing block including a spring washer
WO2020079090A1 (en) * 2018-10-18 2020-04-23 Thyssenkrupp Presta Ag Spring element for a reduction gear of an electromechanical steering system

Also Published As

Publication number Publication date
GB2600727B (en) 2023-05-10
GB202017546D0 (en) 2020-12-23

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