CN205978097U - Removable coulter hub unit of lubricating oil - Google Patents

Abstract

The utility model discloses a coulter hub unit with replaceable lubricating oil, which comprises a rotating shaft fixedly connected to a frame arm, on which a cover-shaped connecting piece is installed through bearing rotation, and the cover-shaped connecting piece and the rotating shaft are located at the bearing There is an inner oil seal, an end cover is provided at the open end of the cover-shaped connector, and an annular sealing groove is provided on the cover-shaped connector corresponding to the outer ring of the end cover, and an end sealing ring is embedded in the annular sealing groove. The connecting flange is provided with a connecting flange, and the connecting flange is provided with at least two connecting threaded holes for connecting with the coulter. Connected oil hole, the oil hole is provided with a plug. The coulter hub unit is easy to use and has a long life oil change.

Description

A coulter hub unit with replaceable lubricating oil

technical field

The utility model relates to a coulter hub unit with replaceable lubricating oil.

Background technique

With the development of agricultural machinery, the diversity of hub units for agricultural machinery has made a qualitative leap. In particular, the oil-lubricated hub unit has rapidly become a new component of the hub family because of its small friction coefficient compared with grease lubrication. But the current coulter hub unit all adopts the design scheme of one-time oil filling and lifetime use.

Facing the harsh working environment and the small oil volume space, it is difficult to achieve the same service life of the lubricating oil in the sealed cavity of the hub unit as the design life of the coulter hub unit, because the quality of the grease in the sealed cavity is reduced and the lubrication is poor The failure of the entire unit is the main factor affecting the service life of this type of hub unit and the occurrence of fatigue failures. If the lubricating oil in the chamber needs to be replaced, it can only be disassembled destructively, which requires replacement of a new seal and consumes labor.

Utility model content

The technical problem to be solved by the utility model is to provide a coulter hub unit which is easy to use and has a long service life and can be replaced by lubricating oil.

In order to solve the above technical problems, the technical solution adopted by the utility model is: a coulter hub unit with replaceable lubricating oil, including a rotating shaft fixedly connected to the frame arm, and a cover-shaped connecting piece is installed on the rotating shaft through bearing rotation , There is an inner oil seal between the cover-shaped connector and the shaft at the bearing, an end cover is provided at the open end of the cover-shaped connector, and an annular seal groove is provided on the cover-shaped connector corresponding to the outer ring of the end cover. The end sealing ring is embedded in the groove, the connecting flange is provided on the cover-shaped connecting piece, and at least two connecting threaded holes for connecting with the coulter are provided on the connecting flange, and at least one oiling hole is provided on the outer ring of the bearing , the cover-shaped connector is provided with a filling hole communicating with the filling hole, and a plug is arranged in the filling hole.

As a preferred solution, the outer ring of the bearing is provided with an annular oil guide groove at the oil injection hole, and the outer ring of the bearing is provided with two oil injection holes communicating with the annular oil guide groove.

As a preferred solution, the bearing is a double-row ball bearing, and the oil injection hole is located in the middle of the two rows of balls.

As a preferred solution, a screw installation hole is provided at the inlet end of the oil filling hole on the cover-shaped connecting piece, and the plug head is a countersunk screw detachably arranged in the countersunk screw installation hole.

The beneficial effects of the utility model are: since the outer ring of the bearing is provided with at least one oiling hole, and the cover-shaped connector is provided with an oiling hole communicating with the oiling hole, the coulter hub unit can be lubricated with oil, and according to the use The lubricating oil is replaced and added according to the situation, which reduces the bearing friction and improves the service life of the coulter hub unit.

Because the outer ring of the bearing is provided with an annular oil guide groove at the oil injection hole, and the outer ring of the bearing is provided with two oil injection holes connected with the annular oil guide groove, which not only reduces the restriction on the opening position, but also facilitates the flow of lubricating oil.

Since the bearing is a double-row ball bearing, the oil injection hole is located in the middle of the two rows of balls, so that the lubricating oil is evenly distributed and the lubricating effect is good.

The cover-shaped connector is provided with a screw mounting hole at the inlet end of the oil filling hole, and a countersunk screw is detachably provided in the mounting hole of the countersunk screw. Parts increase the chance of collision with the outside world and are good for aesthetics. When the countersunk screw is tightened, the coulter hub unit with replaceable lubricating oil still maintains the closed system of the original unit, and the oil can be drained or refueled after the screw is unscrewed, which is simple and efficient.

Description of drawings

Fig. 1 is a structural representation of the utility model.

Fig. 2 is a structural schematic diagram of the bearing outer ring in the utility model.

From Figure 1 to Figure 2: 1. Rotating shaft, 2. Bearing, 21. Annular oil guide groove, 22. Oil injection hole, 23. Ball, 3. Cover-shaped connector, 4. End cover, 5. End sealing ring, 6 . Connecting flange, 7. Countersunk head screw, 8. Inner oil seal.

detailed description

Below in conjunction with accompanying drawing, describe the specific embodiment of the utility model in detail.

As shown in Figure 1-2, a coulter hub unit with replaceable lubricating oil includes a rotating shaft 1 fixedly connected to the frame arm, and a cover-shaped connecting piece 3 is installed on the rotating shaft 1 through double-row ball bearings 2 for rotation. An inner oil seal 8 is provided at the bearing 2 between the cover-shaped connecting piece 3 and the rotating shaft 1 . The open end of the cover-shaped connector 3 is provided with an end cap 4, and the position corresponding to the outer ring of the end cover 4 on the cover-shaped connector 3 is provided with an annular sealing groove, and an end sealing ring 5 is embedded in the annular sealing groove. The cover-shaped connector 3 is provided with a connecting flange 6, and the connecting flange 6 is provided with three connecting threaded holes for connecting with the coulter, and the connecting flange 6 is connected to the coulter disc through the connecting bolt passing through the connecting threaded hole. connected. The outer ring of the bearing 2 is provided with two oil injection holes 22 at the middle position between the two rows of balls 23 . The outer ring of the bearing 2 is provided with an annular oil guide groove 21 at the oil injection hole 22 . The cap-shaped connector 3 is provided with an oil filling hole communicating with the annular oil guide groove 21 . The cover-shaped connector 3 is provided with a screw installation hole at the inlet end of the oil filling hole, and a countersunk screw 7 is detachably provided in the installation hole of the countersunk screw 7 . Screw 7 is screwed in with sealant during installation to ensure the sealing reliability of the original closed system.

The above-described embodiments are only illustrative of the principles of the present invention and its effects, as well as partially used embodiments, and are not intended to limit the utility model; Under the premise of the inventive concept, some deformations and improvements can also be made, which all belong to the protection scope of the present utility model.

Claims (4)

1. a kind of removable colter hub of lubricating oil, including the rotating shaft being fixedly connected in frame arm, rotating shaft is passed through Bearing is rotatablely equipped with cap-shaped connector, is provided with interior side seal between cap-shaped connector and rotating shaft at bearing, and cap-shaped connector is opened Mouth end is provided with end cap, and on cap-shaped connector, the position corresponding with end cap outer ring is provided with annular seal groove, in annular seal groove It is embedded with end seal circle, cap-shaped connector is provided with adpting flange, and adpting flange is provided with for being connected at least with colter Two connection screw thread holes it is characterised in that：Bearing outer ring is provided with least one oil filler point, and cap-shaped connector is provided with and oiling The tank filler sleeve that hole is connected, is provided with chock plug in tank filler sleeve.

2. as claimed in claim 1 a kind of removable colter hub of lubricating oil it is characterised in that：Described bearing outer ring On be provided with annular oil guide groove at oil filler point, described bearing outer ring is provided with two oil filler points being connected with annular oil guide groove.

3. as claimed in claim 2 a kind of removable colter hub of lubricating oil it is characterised in that：Described bearing is double Row ball bearing, described oil filler point is located at the centre position of two row balls.

4. as claimed in claim 3 a kind of removable colter hub of lubricating oil it is characterised in that：Described cap-shaped connects It is provided with screw mounting hole in tank filler sleeve entrance point, described chock plug is the countersunk head being detachably arranged in sunk screw installing hole on part Screw.