CN206290571U - A kind of Novel rolling wheel - Google Patents

Abstract

The utility model discloses a kind of Novel rolling wheel, including roller rod, bearing and nylon wheel, the nylon wheel is sheathed on outside bearing, and the bearing is made up of the clutch shaft bearing and second bearing being mutually socketed, and clutch shaft bearing and second bearing share a mesosphere；And the radial section of the inside and outside circle raceway of clutch shaft bearing and second bearing is triangular in shape.By setting two-layer bearing, resistance during rolling can be reduced；Meanwhile, it is two-point contact between steel ball and inside and outside circle raceway, not only cause that contact surface diminishes, frictional force when reduction is rolled, and the stress of steel ball is changed, overcome steel ball excessive problem of centrifugal force in high speed scroll.Additionally, the rolling bearing has multiple rolling layers, when one layer of failure cannot work wherein, remaining rolling layer can work on, and improve the security of nylon roller.

Description

A kind of Novel rolling wheel

Technical field

The utility model is related to a kind of roller, particularly relates to a kind of structure novelty, reduces rotary resistance and with multilayer axle The nylon roller for holding.

Background technology

The features such as nylon roller is because of its tough and hard wear resistant long service life is widely used in automobile industry.But made at present The installation gap that nylon roller is present between roller rod and bearing is big, and bonding strength is low, so as to influence nylon roller just Often use.Regarding to the issue above, a kind of nylon is had been disclosed for before patent applicant in patent CN201510494993.7 Roller, it includes roller rod, and the roller rod is connected with bearing screens, and the bearing outside is connected to nylon wheel.The bearing bag Hollow inner sleeve is included, the hollow inner sleeve is connected with interior, steel ball is installed between the hollow inner sleeve and interior, described interior outer It is socketed with nylon wheel.Described interior includes piece in first, piece in second, and the steel ball both sides are symmetrically installed with piece in first, the Piece is connected by positioning bound edge with piece in second in piece in two, and described first.Although this structure can effectively solve above-mentioned asking Topic, but by practice test, this kind of nylon roller of structure, its rotary resistance is larger, and after long-term use, steel ball and interior Circle, outer ring load effect under, have great circulating contact stress between surface so that bearing working surface (steel ball and it is interior, Outer ring raceway surface) there is fatigue equivalent, coating metal flaking can be made when serious, pit is formed, so that losing normal work Make ability.Therefore its application is subject to larger limitation.

Utility model content

The utility model provides a kind of Novel rolling wheel, and its main purpose is that the above-mentioned of customer service prior art presence lacks Fall into.

The technical solution of the utility model is as follows：

A kind of Novel rolling wheel, including roller rod, bearing and nylon wheel, the roller rod is connected with bearing screens, described Nylon wheel is sheathed on outside bearing, and the bearing is double-deck bearing, and it is made up of the clutch shaft bearing and second bearing being mutually socketed, and Clutch shaft bearing and second bearing share a mesosphere, the mesosphere as clutch shaft bearing inner ring and be provided with the on the outer wall The inner ring raceway of one bearing；The mesosphere as second bearing outer ring and be provided with inwall the outer ring of second bearing and roll Road；The clutch shaft bearing also includes the first outer ring and big steel ball, and the inwall of first outer ring is provided with outer ring raceway, and first axle The radial section of the inside and outside circle raceway for holding is triangular in shape, and the big steel ball is tangent with above-mentioned inside and outside circle raceway；Described second Bearing also includes the second inner ring and small ball, and the outer wall of second inner ring is provided with inner ring raceway, and second bearing is inside and outside The radial section for enclosing raceway is triangular in shape, and the small ball is tangent with the inside and outside circle raceway of second bearing.

Further, the centre of sphere of the big steel ball and small ball is located on same radial section.Ensure stabilization during work Property.

Further, the second bearing is provided with two groups of inside and outside, circle raceways, is mounted on every group of Internal and external cycle raceway small Steel ball.Further lift the performance of bearing.

Further, the Novel rolling wheel also includes the clamping set of an oblate annular, and the clamping set is sheathed on first First outer ring of bearing.Prevent bearing and the relative slip of nylon wheel.

Further, the roller rod is provided with the enlarged-diameter portion of cylinder, and the enlarged-diameter portion is arranged in second In circle.

From above-mentioned to description of the present utility model, compared to the prior art, the utility model has the following advantages that：It is logical Setting two-layer bearing is crossed, resistance during rolling can be not only reduced, and rolling of the steel ball on inside and outside circle in rolling process can be reduced Dynamic number of times, reduces stress-number of cycles, so as to improve the service life of bearing.Meanwhile, it is two between steel ball and inside and outside circle raceway Point contact, not only causes that contact surface diminishes, frictional force when reduction is rolled, and changes the stress of steel ball, overcomes steel ball The excessive problem of centrifugal force in high speed scroll.Additionally, the rolling bearing has multiple rolling layers, one layer of failure nothing wherein When method works, remaining rolling layer can work on, and improve the security of nylon roller.

Brief description of the drawings

Fig. 1 is nylon roller side structure schematic diagram.

Fig. 2 is nylon roller positive structure schematic.

Fig. 3 is the cross-sectional view of embodiment one.

Fig. 4 is the enlarged diagram of part A in Fig. 3.

Fig. 5 is the cross-sectional view of embodiment two.

Specific embodiment

Specific embodiment of the present utility model is illustrated with reference to the accompanying drawings.

Embodiment one

Referring concurrently to Fig. 1 and Fig. 2, the nylon of a kind of Novel rolling wheel, including roller rod 1, bearing, dust cap 3 and outside Wheel 4, the roller rod 1 is connected with bearing screens, and the nylon wheel 4 is sheathed on outside bearing, and the one end on roller rod 1 is provided with cylinder The enlarged-diameter portion 11 of shape, the enlarged-diameter portion 11 is arranged in the inwall of bearing inner race.

Referring concurrently to Fig. 3 and Fig. 4, the bearing is double-deck bearing, and it is by outside clutch shaft bearing 5 and the second axle of inside Hold 6 compositions, and clutch shaft bearing 5 and second bearing 6 share a mesosphere 7, the mesosphere 7 as clutch shaft bearing 5 inner ring simultaneously And the interior raceway 71 of clutch shaft bearing 5 is provided with the outer wall；The mesosphere 7 as second bearing 6 outer ring and set on inwall There is the outer raceway 72 of second bearing 6.The clutch shaft bearing 5 also includes the first outer ring 51 and big steel ball 52, first outer ring 51 Inwall is provided with outer ring raceway 53, and the radial section of the inside and outside circle raceway 71,53 of clutch shaft bearing 5 is triangular in shape, described big Steel ball 52 is tangent with above-mentioned inside and outside circle raceway 71,53；The second bearing 6 also includes the second inner ring 61 and (the small steel of small ball 62 The diameter of ball 62 is less than big steel ball 52, and the centre of sphere of the big steel ball 52 and small ball 62 is located on same radial section), it is described The outer wall of the second inner ring 61 is provided with inner ring raceway 63, and the radial section of the inside and outside circle raceway 63,72 of second bearing 6 is in Triangle, the small ball 62 is tangent with the inside and outside circle raceway 63,72 of second bearing 6.

Embodiment two

The structure of the present embodiment and above-described embodiment one is essentially identical, and it is differred primarily in that, the roller of the present embodiment is also Clamping set 2 including an oblate annular, the clamping set 2 is sheathed on the first outer ring 51 of clutch shaft bearing 5, can prevent bearing and Buddhist nun Dragon wheel 4 is relative to be slided.

Specific embodiment of the present utility model is above are only, but design concept of the present utility model is not limited thereto, All changes for carrying out unsubstantiality to the utility model using this design, belong to invade the row of the utility model protection domain For.

Claims (5)

1. a kind of Novel rolling wheel, including roller rod, bearing and nylon wheel, the roller rod are connected with bearing screens, the Buddhist nun Dragon wheel is sheathed on outside bearing, it is characterised in that：The bearing is double-deck bearing, and it is by the clutch shaft bearing and the second axle that are mutually socketed Hold composition, and clutch shaft bearing and second bearing share a mesosphere, the mesosphere as clutch shaft bearing inner ring and outside Wall is provided with the inner ring raceway of clutch shaft bearing；The mesosphere as second bearing outer ring and be provided with inwall second bearing Outer ring raceway；The clutch shaft bearing also includes the first outer ring and big steel ball, and the inwall of first outer ring is provided with outer ring raceway, And the radial section of the inside and outside circle raceway of clutch shaft bearing is triangular in shape, the big steel ball is tangent with above-mentioned inside and outside circle raceway； The second bearing also includes the second inner ring and small ball, and the outer wall of second inner ring is provided with inner ring raceway, and the second axle The radial section of the inside and outside circle raceway for holding is triangular in shape, and the small ball is tangent with the inside and outside circle raceway of second bearing.

2. Novel rolling wheel according to claim 1, it is characterised in that：The centre of sphere of the big steel ball and small ball is located at same On radial section.

3. Novel rolling wheel according to claim 1, it is characterised in that：The second bearing is provided with two groups of inside and outside, circle rollings Road, small ball is mounted on every group of Internal and external cycle raceway.

4. according to any described Novel rolling wheel of claims 1 to 3, it is characterised in that：The Novel rolling wheel also includes that one is oblate The clamping set of annular, the clamping set is sheathed on the first outer ring of clutch shaft bearing.

5. Novel rolling wheel according to claim 1, it is characterised in that：The roller rod is provided with the enlarged-diameter of cylinder Portion, the enlarged-diameter portion is arranged in the second inner ring.