CN201335095Y

CN201335095Y - Rolling bearing with sensor

Info

Publication number: CN201335095Y
Application number: CNU2009201123874U
Authority: CN
Inventors: 徐向明
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-01-09
Filing date: 2009-01-09
Publication date: 2009-10-28
Anticipated expiration: 2019-01-09

Abstract

The utility model relates to a rolling bearing with a sensor, which is improved on the basis of a body, a sensor, a magnetic ring, a bearing element and the like of the original rolling bearing, that is, the bearing element is designed to be made up of an annular support seat and a limit body with a limit opening; a notch is formed on the inner surface of the annular support seat; an upper projection and a lower convex block are arranged on two side surfaces of an insulator encapsulating the sensor; the insulator is inserted in the notch; the lower edge of the upper convex block is propped against the edge of the annular support seat; the lower convex block of the insulator is inserted in the limit opening of the limit body; and the limit body is fixed on the inner surface of the annular support seat so as to enable the annular support seat, the sensor and the limit body to be tightened into a whole. By adopting the structure, the manufacturing process is obviously simplified, the manufacturing cost is reduced and the installation of the sensor is facilitated; and meanwhile, by the skillful utilization of the mechanical matching among the upper and the lower convex blocks, the edge of the annular support seat and the limit opening of the limit body, the sensor can be installed in the bearing element reliably.

Description

The rolling bearing of belt sensor

Technical field

The utility model relates to a kind of rolling bearing, specifically refers to a kind of rolling bearing that Hall transducer and magnet ring detect bearing rotational speed and/or sense of rotation that has.

Background technique

In order in time to detect the rotating speed and/or the sense of rotation of rotary component in the various device, people realize by being installed on the mode of setting up sensor on the rolling bearing in the rotary component already.Usually in this rolling bearing, as the multi-pole magnet-ring that is fixed with the band predetermined pattern and the magnetization intensity on the inner ring of turning collar or the outer ring, and as fixed magnetic sensor (Hall transducer) on the outer ring of retainer ring or the inner ring.During use, the magnetic flux that utilizes magnetic sensor to detect the multi-pole magnet-ring that rotates with turning collar is measured the rotating speed and/or the sense of rotation of rolling bearing.

The above-mentioned rolling bearing that changes sensor that has has now presented diversified structure, it is mainly reflected on the mounting structure of sensor, at present, the mounting type of this sensor is often comparatively complicated, is structure " rolling bearing of belt sensor and the rotary state detecting device " of CN1615407A just disclosed as the Chinese patent publication number.Better simply relatively structure is also arranged, be only to adopt supporting element to realize in " a kind of sensing bearing " of CN101285501A as the Chinese patent publication number, this supporting element is connected with the inner peripheral surface of outer ring by the annular joint on it, guarantee that supporting element and outer ring are spacing to axial, need not in supporting element, to be provided with other accessory like this, just can make supporting element and outer ring strong bonded, to guarantee the installation of sensor.But find that in actual applications this structure that only adopts supporting element has improved the difficulty of processing of supporting element itself to a certain extent, and in a single day machining deviation appear in the annular joint on it, will cause scrapping of whole parts.

The model utility content

Technical problem to be solved in the utility model is to provide a kind of novel structure at above-mentioned prior art present situation, is convenient to process, assemble and can reduce the rolling bearing of the belt sensor of fabricating cost.

The utility model solves the problems of the technologies described above the technological scheme that is adopted: the rolling bearing of this belt sensor includes the rolling bearing body, sensor and magnet ring, wherein the rolling bearing body includes the outer ring again, inner ring and rollably be arranged on roll piece between inner ring and the outer ring, described magnet ring and inner ring fix, described sensor is installed in the insulator, and be fixed on the described outer ring by supporting member, make the sensing position of this sensor relative with the magnetized surface of described magnet ring, it is characterized in that: described supporting member is made up of annular mount and the limit body that has position-limitting mouth, have breach on the described annular mount internal surface, and the top of described insulator one side has upper protruding block, the bottom of this insulator another side has lower protruding block, described insulator is plugged in the above-mentioned breach, and the lower edge that makes upper protruding block is resisted against on the edge of described annular mount, the lower protruding block of this insulator is inserted in the position-limitting mouth of limit body simultaneously, and this limit body is fixed on the above-mentioned annular mount internal surface and makes annular mount, sensor and limit body are tightened to one.

As preferred version of the present utility model, described limit body can be designed as circular ring plate, described position-limitting mouth is positioned on the inner peripheral surface of this circular ring plate, and the edge of this circular ring plate has the interior flanging to described rolling bearing base side bending, should in flanging the edge again the radially outward side extend and form outer flanging, then have annular spacing groove on the inner peripheral surface of described outer ring for this outer flanging insertion.Simultaneously outside this, on the flanging a plurality of radial gaps can also be arranged uniformly at intervals, make the outer flanging of circular ring plate have the certain deformation degree, so that be inserted in the restraining groove.

As another kind of scheme of the present utility model, can design the positioning convex portion that is tight with at described outer ring inner peripheral surface on the internal surface of described annular mount, described limit body is a limiting board, described position-limitting mouth is positioned at the lower side of this limiting board along last.In this programme, described positioning convex portion can be made up of a plurality of salient points of concentric distribution, also positioning convex portion can be designed to have the protruding circle of opening, this opening is positioned at the indentation, there of annular mount, form and limiting board is designed to match with this opening a ring bodies arc-like sheet.

In above-mentioned each scheme, the middle part of described insulator another side can also have the middle projection inconsistent with described outer ring inner peripheral surface, utilizes cooperating of projection and outer ring inner peripheral surface in this, can improve the installation reliability of sensor.

Simultaneously, can have a step on the inner ring end outer surface, and the magnet ring design is the straight tube-like structure, and tightly is enclosed within on this step, such structure can be simplified the production technology of magnet ring.

Compared with prior art, because supporting member of the present utility model adopts the branch body structure of annular mount and limit body, thereby when processing such supporting member, can simplify preparation process significantly, even and wherein phenomenon appears scrapping in a part, can not involve another part, so can reduce fabricating cost yet; This minute simultaneously body structure also helps the installation of sensor; Moreover, by on insulator, setting up upper and lower projection, can utilize the mechanical engagement of this upper and lower projection and annular mount edge and limit body position-limitting mouth dexterously, sensor is installed on the supporting member more reliably.

Description of drawings

Fig. 1 is the utility model embodiment one a structural representation;

Fig. 2 is the structural representation of outer ring among Fig. 1;

Fig. 3 is the structural representation of inner ring among Fig. 1;

Fig. 4 is the structural representation of Fig. 1 middle magnetic ring;

Fig. 5 is the plan view of Fig. 4;

Fig. 6 is that the solid of annular mount and circular ring plate among Fig. 1 cooperates schematic representation;

Fig. 7 is the three-dimensional exploded view of Fig. 6;

Fig. 8 has the plan view of the insulator of sensor for interior envelope among Fig. 1;

Fig. 9 be among Fig. 8 A-A to sectional view;

Figure 10 is the utility model embodiment two a structural representation;

Figure 11 is the structural representation of outer ring among Figure 10;

Figure 12 is that annular mount cooperates schematic representation with the solid of limiting board among Figure 10;

Figure 13 is the three-dimensional exploded view of Figure 12.

Embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

Embodiment one: extremely shown in Figure 9 as Fig. 1; the rolling bearing of this belt sensor includes rolling bearing body, sensor 1 and magnet ring 2 and supporting member; wherein; the rolling bearing body is a conventional structure; it mainly is made up of outer ring 3, inner ring 4 and the roll piece 5 that rollably is arranged between inner ring and the outer ring, and inner ring 4 is as rotary component, and outer ring 3 maintains static; between the inside and outside circle of roll piece 5 one sides, also be provided with dust cover 6, exempt from intrusions such as dust with the protection roll piece.

Described magnet ring 2 is the straight tube-like structure, see also 4 and Fig. 5, its outer peripheral surface is that the N utmost point, the S utmost point are alternately distributed the magnetized surface that forms many pole pairs, its inner peripheral surface close-fitting is on inner ring 4, its means of fixation is: the inner ring end outer surface that is positioned at the roll piece opposite side is processed with a step 41, and magnet ring 2 tightly is enclosed within on this step 41.When inner ring 4 rotations, this magnet ring can rotate with inner ring like this.

Above-mentioned supporting element is positioned at the opposite side of roll piece, and in the present embodiment, this supporting element is made up of annular mount 7 and circular ring plate 8, sees also Fig. 6 and Fig. 7, has breach 71 on annular mount 7 internal surfaces; The inner peripheral surface of circular ring plate 8 is provided with position-limitting mouth 81, and the edge of this circular ring plate has the interior flanging 82 to the bending of rolling bearing base side, the edge of this interior flanging radially outward side again extends and the outer flanging 83 of formation, on the inner peripheral surface of outer ring 3, then have the annular spacing groove 31 that inserts for flanging outside this, referring to Fig. 2.Simultaneously, a plurality of radial gaps 84 are arranged uniformly at intervals also on the flanging 83 outside, be inserted in the annular spacing groove 31 so that the outer flanging of circular ring plate is easier.

The sensor 1 adopt plastic packaging in insulator 9 dual-Hall sensor, see also Fig. 8 and Fig. 9, be integrated with two Hall elements and signal processing circuit in promptly, their output line causes outside the insulator; But the rotation of this dual-Hall sensor reaction magnetic ring 2, and output has two pulse signals of phase deviation with rotational speed and the sense of rotation that detects magnet ring 2, is finally known the rotating speed of outer buttons rotation member and is turned to.Certainly press need of work, also Sensor Design can be become single, only the rotating speed of perception magnet ring or direction.

The top of the insulator 9 of above-mentioned encapsulated sensor has upper protruding block 91, makes this top, insulator one side evagination, and the bottom of this insulator another side has lower protruding block 92, and in the middle part of this insulator another side has projection 93.

During installation, insulator 9 is plugged in the breach 71 of above-mentioned annular mount, the lower edge of the upper protruding block 91 of insulator is resisted against on the edge of annular mount 7, lower protruding block 92 with insulator is inserted in the position-limitting mouth 81 of circular ring plate 8 simultaneously, this circular ring plate is fixed on the internal surface of above-mentioned annular mount 7 by the mode of spot welding, also can be fixed on the bearing by modes such as screws, at this moment, the insulator that has sensor makes annular mount, sensor and circular ring plate be tightened to integral piece by spacing in breach reliably.Then the circular ring plate side with above-mentioned integral piece is embedded in the endoporus of outer ring, the outer flanging 83 of circular ring plate is inserted in the restraining groove 31 of outer ring inner peripheral surface, the middle projection 93 of insulator is inconsistent with outer ring 3 inner peripheral surfaces, and make the sensing position of this sensor relative with the magnetized surface of magnet ring, see also shown in Figure 1.

Embodiment two: extremely shown in Figure 13 as Figure 10, it is that with above-mentioned first embodiment's difference the structure of supporting member is different, supporting member in the present embodiment is made up of annular mount 7 and limiting board 10, have the breach 71 of sensor installation on the annular mount 7 equally, just the surface has additional the positioning convex portion that can be tight with at the outer ring inner peripheral surface within it, this positioning convex portion can be made up of a plurality of salient points of concentric distribution, here, this positioning convex is designed to have the protruding circle 72 of opening 73, and described limiting board 10 forms a ring-type arc-like sheet for matching with this opening 73, and position-limitting mouth is positioned at the lower side of this limiting board 10 along last.

During assembling, equally insulator is plugged in the breach 71 of above-mentioned annular mount, the lower edge of the upper protruding block 91 of insulator is resisted against on the edge of bearing 7, simultaneously limiting board 10 is placed in the opening 73 of protruding circle, and the lower protruding block 92 that makes insulator is inserted in the position-limitting mouth of positioning plate 10, at this moment, it is compacted spacing in breach 71 to have an insulator that changes sensor.And limiting board can be fixed in by the mode of spot welding on the internal surface of above-mentioned bearing, also can be fixed on the bearing by modes such as screws, makes bearing, sensor and limiting board be tightened to integral piece.Then the limiting board side with above-mentioned integral piece is inserted in 3 endoporus of outer ring, the protruding circle 72 that makes bearing and outer ring 3 inner peripheral surfaces are close-fitting mutually, the middle projection 93 of insulator is inconsistent with outer ring 3 inner peripheral surfaces simultaneously, and the sensing position of sensor is relative with the magnetized surface of magnet ring, sees also shown in Figure 10.Obviously, adopt such structure can realize the installation of sensor on rolling bearing equally.

Claims

1, a kind of rolling bearing of belt sensor, include the rolling bearing body, sensor (1) and magnet ring (2), wherein the rolling bearing body includes outer ring (3) again, inner ring (4) and rollably be arranged on roll piece (5) between inner ring and the outer ring, described magnet ring (2) fixes with inner ring (4), described sensor (1) is installed in the insulator (9), and be fixed on the described outer ring (3) by supporting member, make the sensing position of this sensor (1) relative with the magnetized surface of described magnet ring (2), it is characterized in that: described supporting member is made up of annular mount (7) and the limit body that has a position-limitting mouth (81), have breach (71) on the described annular mount internal surface, and the top of described insulator (9) one sides has upper protruding block (91), the bottom of this insulator another side has lower protruding block (92), described insulator (9) is plugged in the above-mentioned breach (71), and the lower edge that makes upper protruding block (91) is resisted against on the edge of described annular mount (7), the lower protruding block of this insulator (92) is inserted in the position-limitting mouth (81) of limit body simultaneously, and this limit body is fixed on above-mentioned annular mount (7) internal surface and makes annular mount, sensor and limit body are tightened to one.

2, the rolling bearing of belt sensor according to claim 1, it is characterized in that: described limit body is circular ring plate (8), described position-limitting mouth (81) is positioned on the inner peripheral surface of this circular ring plate, and the edge of this circular ring plate has the interior flanging (82) to described rolling bearing base side bending, should in flanging (82) the edge again the radially outward side extend and form outer flanging (83), then have on the inner peripheral surface of described outer ring (3) for annular spacing groove (31) that should outer flanging (83) insertion.

3, the rolling bearing of belt sensor according to claim 2 is characterized in that: a plurality of radial gaps (84) are also arranged on the described outer flanging uniformly at intervals.

4, the rolling bearing of belt sensor according to claim 1, it is characterized in that: design has the positioning convex portion that is tight with at described outer ring inner peripheral surface on the internal surface of described annular mount, described limit body is a limiting board (10), and described position-limitting mouth is positioned at the lower side of this limiting board along last.

5, the rolling bearing of belt sensor according to claim 4, it is characterized in that: described positioning convex portion is for having the protruding circle (72) of opening (73), this opening (73) is positioned at described indentation, there, and described limiting board form for matching with this opening a ring bodies arc-like sheet.

6, according to the rolling bearing of the described belt sensor of the arbitrary claim of claim 1 to 5, it is characterized in that: the middle part of described insulator another side also has the middle projection (93) inconsistent with described outer ring inner peripheral surface.

7, according to the rolling bearing of the described belt sensor of the arbitrary claim of claim 1 to 5, it is characterized in that: described inner ring (4) end outer surface has a step (41), and described magnet ring (2) is the straight tube-like structure, and tightly is enclosed within on this step (41).