CN203756733U - Coupling bearing for seeding machine - Google Patents
Coupling bearing for seeding machine Download PDFInfo
- Publication number
- CN203756733U CN203756733U CN201420044929.XU CN201420044929U CN203756733U CN 203756733 U CN203756733 U CN 203756733U CN 201420044929 U CN201420044929 U CN 201420044929U CN 203756733 U CN203756733 U CN 203756733U
- Authority
- CN
- China
- Prior art keywords
- rotatingshaft
- forms
- raceway groove
- bending part
- outer ring
- 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- Withdrawn - After Issue
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- Rolling Contact Bearings (AREA)
Abstract
The utility model discloses a coupling bearing for a seeding machine. The coupling bearing comprises a rotary shaft and an outer ring, wherein two outer channels are formed at the positions, close to two ends, in the main connecting section of the rear part of the rotary shaft; two inner channels are formed in the inner wall of the outer ring and are in one-to-one correspondence to the two outer channels; two steel ball holder assemblies are arranged between the rotary shaft and the outer ring in a mutually isolated manner; steel balls of each steel ball holder assembly are arranged between the corresponding outer channel and the corresponding inner channel; a sealing ring is arranged between the rotary shaft and the outer ring; a central screw hole is formed in the rear end surface of the rotary shaft; two radial through holes are formed in the screwed section formed in the middle of the rotary shaft; the inner channels and the outer channels are peach-shaped channels. The steel balls of the coupling bearing are in a four-point contact mode, the using carrying capacity of the bearing is improved, the axial movement is reduced, the stability of the bearing is improved, and the bearing can be well fixed on equipment by virtue of the central screw hole and the radial through holes.
Description
Technical field:
The utility model relates to technical field of bearings, more specifically to a kind of sowing machine shaft connecting bearing.
Background technique:
Existing sowing machine generally adopt rotatingshaft and overcoat with shaft connecting bearing and be arranged on rotatingshaft and overcoat between seal ring composition, thereby its rotatingshaft is provided with the section of being spirally connected is connected on the corresponding part of sowing machine rotatingshaft by the mode being spirally connected, as used on cooling waterpump, owing to just adopting the mode being spirally connected, service time is of a specified duration just easily loosening, and impact is used.
Simultaneously, it is simple in structure for the seal ring at its two ends of existing shaft connecting bearing, the limit portion moulding bending part that its seal ring adopting is planar chip, at the back side of seal ring, seal lip being set seals, because seal ring is its intensity of bending part of limit portion moulding of planar chip little, used easy distortion of a specified duration, and it is very easy to come off.
And the steel ball adopting between existing outer ring and rotatingshaft coordinates with it employing is deep-groove ball mode, its 2 contact bearing capacitys are little, and axial float is large, bearing used and unstable.
Model utility content:
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of sowing machine shaft connecting bearing is provided, its steel ball adopts 4 contacts, improve the use bearing capacity of bearing and reduce axial float, improve bearing stability, its center screw and radial direction through hole can better be fixed on equipment bearing, and its seal ring adopts the mode of repeatedly bending ensureing to improve its intensity in lightweight situation, makes it more stable.
The scheme that the utility model solve the technical problem is:
A kind of sowing machine shaft connecting bearing, comprise rotatingshaft and outer ring, the nearly two ends place of the main linkage section in rear portion of described rotatingshaft forms two outer raceway grooves, on the inwall of outer ring, form two interior raceway grooves, two interior raceway grooves are corresponding one by one with two outer raceway grooves, two groups of ball retainer assemblies are mutually isolated and are arranged between rotatingshaft and outer ring, and the steel ball of ball retainer assembly is arranged on outer raceway groove and therewith between the corresponding interior raceway groove of outer raceway groove, between rotatingshaft and outer ring, is provided with seal ring;
On the ear end face of rotatingshaft, form center screw, form two radial direction through hole in the section of being spirally connected that the middle part of rotatingshaft forms, two radial direction through hole intersect and are connected;
Described interior raceway groove and outer raceway groove are peach-shaped ditch, and steel ball is respectively at 2 with interior raceway groove, outer raceway groove and contacts.
Described seal ring is made up of skeleton and seal lip, the middle part of described skeleton forms intermediate throughholes, the limit portion of skeleton forms the axial bending part of inside bending, axially the end of bending part forms radially bending part, radially the end of bending part forms the bending part of inside bending, the end of bending part forms the joint radially extending, the end of joint forms elasticity bayonet end, the outside bending in end of elasticity bayonet end, is fixed with seal lip on the inwall of axial bending part and the radially joint of bending part;
The two ends sleeve of the main linkage section in rear portion of rotatingshaft is in the central through bore of two seal rings, and seal lip elasticity is pressed against on the outer side wall of the main linkage section in rear portion, and elasticity bayonet end is nested in the annular groove forming on the madial wall at two ends of outer ring.
The front end of described rotatingshaft is for connecting end, connects the diameter of the section of being spirally connected that middle part that the diameter of end is less than rotatingshaft forms.
Angle between described two radial direction through hole is 45 °.
Described steel ball is respectively at 2 with interior raceway groove, outer raceway groove and contacts, and its wrapping angle is 30 °.
Described ball retainer assembly is made up of the ringwise multiple steel balls of the arrangement being fixed with on retainer and retainer.
Outstanding effect of the present utility model is:
1, its steel ball adopts 4 contacts, improves the use bearing capacity of bearing and reduces axial float, improves bearing stability.
2, on the ear end face of its rotatingshaft, form center screw, facilitate miscellaneous part to be connected with rotatingshaft, and the radial direction through hole that forms two intersections is held in being spirally connected of rotatingshaft, by being plugged on, two locating studs in radial direction through hole, limit rotatingshaft like this, improve rotatingshaft and other equipment connection effects, bearing can be better fixed on equipment.
3, its seal ring adopts the mode of repeatedly bending ensureing to improve its intensity in lightweight situation, makes it more stable.
4, the elasticity bayonet end of its seal ring is nested in the annular groove forming on the madial wall at two ends of outer ring, makes like this that seal ring is more enough to be better fixed on bearing, ensures sealing, improves the working life of bearing.
Brief description of the drawings:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the partial sectional view of rotatingshaft of the present utility model;
Fig. 3 is partial enlarged drawing of the present utility model.
Embodiment:
Embodiment, see as shown in Figures 1 to 3, a kind of sowing machine shaft connecting bearing, comprise rotatingshaft 1 and outer ring 2, the nearly two ends place of the main linkage section 11 in rear portion of described rotatingshaft 1 forms two outer raceway grooves 12, on the inwall of outer ring 2, form two interior raceway grooves 21, two interior raceway grooves 21 are corresponding one by one with two outer raceway grooves 12, two groups of ball retainer assemblies 3 are mutually isolated and are arranged between rotatingshaft 1 and outer ring 2, the steel ball 31 of ball retainer assembly 3 is arranged on outer raceway groove 12 and therewith between the corresponding interior raceway groove 21 of outer raceway groove 12, between rotatingshaft 1 and outer ring 2, is provided with seal ring 4;
On the ear end face of rotatingshaft 1, form center screw 13, in the section of being spirally connected 14 that the middle part of rotatingshaft 1 forms, form 15, two radial direction through hole 15 of two radial direction through hole and intersect and be connected;
Described interior raceway groove 21 and outer raceway groove 12 are peach-shaped ditch, and steel ball 31 is respectively at 2 with interior raceway groove 21, outer raceway groove 12 and contacts.
Described seal ring 4 is made up of skeleton 41 and seal lip 42, the middle part of described skeleton 41 forms intermediate throughholes 411, the limit portion of skeleton 41 forms the axial bending part 412 of inside bending, axially the end of bending part 412 forms radially bending part 413, radially the end of bending part 413 forms the bending part 414 of inside bending, the end of bending part 414 forms the joint 415 radially extending, the end of joint 415 forms elasticity bayonet end 416, the outside bending in end of elasticity bayonet end 416, on the inwall of axial bending part 412 and the radially joint of bending part 413, be fixed with seal lip 42,
The two ends sleeve of the main linkage section 11 in rear portion of rotatingshaft 1 is in the central through bore 411 of two seal rings 4, seal lip 42 elasticity are pressed against on the outer side wall of the main linkage section 11 in rear portion, and elasticity bayonet end 416 is nested in the annular groove 22 forming on the madial wall at two ends of outer ring 2.
The front end of described rotatingshaft 1 is for connecting end 16, connects the diameter of the section of being spirally connected 14 that middle part that the diameter of end 16 is less than rotatingshaft 1 forms.
Angle between described two radial direction through hole 15 is 45 °.
Described steel ball 31 is respectively at 2 with interior raceway groove 21, outer raceway groove 12 and contacts, and its wrapping angle is 30 °.
Described ball retainer assembly 3 is made up of the ringwise multiple steel balls 31 of the arrangement being fixed with on retainer 32 and retainer 32.
Wherein, in the time making, the outer raceway groove 12 of rotatingshaft 1 and the surface of axle journal 20 all adopt induction hardening processing, and then machining center screw 13 on the ear end face of rotatingshaft 1, there is like this surface hardness high, accuracy of thread is high has toughness, and install reliable, and center screw 13 is left-handed thread, direction of rotation with rotatingshaft 1, make like this parts that are connected to rotatingshaft 1 along with the rotation of rotatingshaft 1 is more and more tighter, can loose or dislocation, and two radial direction through hole 15 can improve locking effect, can better locate fixing by inserting two locating studs.
Claims (6)
1. a sowing machine shaft connecting bearing, comprise rotatingshaft (1) and outer ring (2), it is characterized in that: the nearly two ends place of the main linkage section in rear portion (11) of described rotatingshaft (1) forms two outer raceway grooves (12), on the inwall of outer ring (2), form two interior raceway grooves (21), two interior raceway grooves (21) are corresponding one by one with two outer raceway grooves (12), two groups of ball retainer assemblies (3) mutually isolation are arranged between rotatingshaft (1) and outer ring (2), the steel ball (31) of ball retainer assembly (3) is arranged on outer raceway groove (12) and therewith between the corresponding interior raceway groove (21) of outer raceway groove (12), between rotatingshaft (1) and outer ring (2), be provided with seal ring (4),
On the ear end face of rotatingshaft (1), form center screw (13), in the section of being spirally connected (14) that the middle part of rotatingshaft (1) forms, form two radial direction through hole (15), two radial direction through hole (15) intersect and are connected;
Described interior raceway groove (21) and outer raceway groove (12) are peach-shaped ditch, and steel ball (31) is respectively at 2 and contacts with interior raceway groove (21), outer raceway groove (12).
2. a kind of sowing machine shaft connecting bearing according to claim 1, it is characterized in that: described seal ring (4) is made up of skeleton (41) and seal lip (42), the middle part of described skeleton (41) forms intermediate throughholes (411), the limit portion of skeleton (41) forms the axial bending part (412) of inside bending, axially the end of bending part (412) forms radially bending part (413), radially the end of bending part (413) forms the bending part (414) of inside bending, the end of bending part (414) forms the joint (415) radially extending, the end of joint (415) forms elasticity bayonet end (416), the outside bending in end of elasticity bayonet end (416), on the inwall of axial bending part (412) and the radially joint of bending part (413), be fixed with seal lip (42),
The two ends sleeve of the main linkage section in rear portion (11) of rotatingshaft (1) is in the central through bore (411) of two seal rings (4), seal lip (42) elasticity is pressed against on the outer side wall of the main linkage section in rear portion (11), and elasticity bayonet end (416) is nested in the annular groove (22) forming on the madial wall at two ends of outer ring (2).
3. a kind of sowing machine shaft connecting bearing according to claim 1, it is characterized in that: the front end of described rotatingshaft (1) is for connecting end (16), the diameter that connects end (16) is less than the diameter of the section of being spirally connected (14) that the middle part of rotatingshaft (1) forms.
4. a kind of sowing machine shaft connecting bearing according to claim 1, is characterized in that: the angle between described two radial direction through hole (15) is 45 °.
5. a kind of sowing machine shaft connecting bearing according to claim 1, is characterized in that: described steel ball (31) is respectively at 2 and contacts with interior raceway groove (21), outer raceway groove (12), and its wrapping angle is 30 °.
6. a kind of sowing machine shaft connecting bearing according to claim 1, is characterized in that: described ball retainer assembly (3) is made up of the ringwise multiple steel balls of arrangement (31) that are fixed with on retainer (32) and retainer (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420044929.XU CN203756733U (en) | 2014-01-24 | 2014-01-24 | Coupling bearing for seeding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420044929.XU CN203756733U (en) | 2014-01-24 | 2014-01-24 | Coupling bearing for seeding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203756733U true CN203756733U (en) | 2014-08-06 |
Family
ID=51252014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420044929.XU Withdrawn - After Issue CN203756733U (en) | 2014-01-24 | 2014-01-24 | Coupling bearing for seeding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203756733U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807294A (en) * | 2014-01-24 | 2014-05-21 | 浙江五洲新春集团股份有限公司 | Shaft-connecting bearing for seeder |
-
2014
- 2014-01-24 CN CN201420044929.XU patent/CN203756733U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807294A (en) * | 2014-01-24 | 2014-05-21 | 浙江五洲新春集团股份有限公司 | Shaft-connecting bearing for seeder |
| CN103807294B (en) * | 2014-01-24 | 2016-05-18 | 浙江五洲新春集团股份有限公司 | A kind of seeder shaft connecting bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140806 Effective date of abandoning: 20160518 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |