CN211009622U - Shaft hub connecting device - Google Patents
Shaft hub connecting device Download PDFInfo
- Publication number
- CN211009622U CN211009622U CN201921510286.2U CN201921510286U CN211009622U CN 211009622 U CN211009622 U CN 211009622U CN 201921510286 U CN201921510286 U CN 201921510286U CN 211009622 U CN211009622 U CN 211009622U
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- China
- Prior art keywords
- overcoat
- endotheca
- flange
- oil
- horn mouth
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Abstract
The utility model discloses a shaft hub connecting device, including endotheca and overcoat, form annular oil pocket between overcoat and the endotheca, be equipped with oil filler point and oil drain on the overcoat, its characterized in that the tip of endotheca is equipped with the flange, be equipped with the step on the overcoat, the flange overlap joint of endotheca is in on the step of overcoat, all be equipped with the inclined plane on flange and the overcoat, two inclined planes form the horn mouth structure, give in the horn mouth and execute the welding thing, will overcoat and endotheca connection become a whole. The utility model discloses a this kind of structure, its face of weld is firm, and endotheca and overcoat combine completely moreover, and the bulk property of endotheca and overcoat can not be influenced to the big pressure in the annular oil chamber, has fine practicality.
Description
Technical Field
The utility model relates to the field of machinary, concretely relates to axle hub connecting device.
Background
Conventional shaft-hub connections are keyed, but the strength of the shaft is weakened by the presence of keyways in the shaft, and the shaft diameter generally needs to be increased in order to provide sufficient strength to the shaft. Along with the development of the technology, the connection between the hubs has a keyless connection, the expansion sleeve is added between the shaft and the hub, the two conical surfaces which are matched with each other move relatively through the screwing force of a screw or the oil pressure, the interference magnitude is generated between the matching surfaces of the two parts, and the huge holding force is generated between the hub and the shaft so as to realize the keyless connection of the parts and the shaft. Looking up a Chinese patent database, a utility model patent with the publication number of CN203114925U and the name of a shaft-hub connecting device is obtained, and the following contents are disclosed: the utility model provides a shaft hub connecting device, its characterized in that, includes wheel hub, endotheca and pressure sensor, wheel hub and endotheca welding become an organic whole to form an annular cavity between wheel hub and endotheca, connect through cylindric lock I, cylindric lock II between the radial cooperation contact surface of wheel hub and endotheca, be equipped with respectively on the outer face of cylinder of wheel hub and the flange terminal surface of endotheca and go up the installation oil inlet I that is linked together with the annular cavity, installation oil inlet II and dismantle oil outlet I, dismantle oil outlet II, install high-pressure glib I, high-pressure glib II on two installation oil inlets respectively, install respectively on two dismantlement oil holes and dismantle oil stifled I, dismantle oil stifled II, install the oilhole on the flange terminal surface of endotheca, install pressure sensor in the oilhole, pressure sensor passes through the electric wire and is connected with the terminal box. The hub connecting device with the structure has low cost and convenient installation, but because the hub is connected with the radial matching contact surface of the inner sleeve through the cylindrical pin, the rigidity of the inner sleeve and the outer sleeve after combination is reduced, and the pressure sensor is adopted to obtain the oil pressure in the cavity, so that a junction box and an electronic element are required to be matched, and the hub connecting device is inconvenient to assemble and use.
Disclosure of Invention
In view of the deficiencies in the prior art, the to-be-solved technical problem of the present invention is to provide a shaft hub connection device that directly welds an inner sleeve and an outer sleeve to improve the combination rigidity and has a simple structure.
Therefore, the utility model discloses an adopt following technical scheme to realize: the utility model provides a shaft hub connecting device, includes endotheca and overcoat, form annular oil pocket between overcoat and the endotheca, be equipped with oil filler point and oil drain hole on the overcoat, its characterized in that the tip of endotheca is equipped with the flange, be equipped with the step on the overcoat, the flange overlap joint of endotheca is in on the step of overcoat, all be equipped with the inclined plane on flange and the overcoat, two inclined planes form horn mouth structure, apply the welding thing in the horn mouth, will overcoat and endotheca are connected and are become a whole.
The outer sleeve is provided with an annular groove, the flange is provided with an annular body bent inwards, and the annular body is matched with the annular groove.
A high-pressure grease injection valve is arranged at the position of the oil injection hole, and a pressure gauge is arranged on a pipeline connected with the high-pressure grease injection valve.
The utility model discloses a structure, its inner jacket adopts the overlap joint of flange and step with the overcoat to adopt the horn mouth that the inclined plane constitutes on flange and overcoat, then adopt the welding thing to weld, owing to adopt the structure of flange, make the whole outside side shift in inclined plane of flange, make the flange department of endotheca remain certain thickness, consequently when the pressure increase of oil intracavity, can not lead to the fact the influence to the combination rigidity of endotheca and overcoat, adopt the horn mouth structure to weld moreover, it is more firm reliable.
Drawings
The details of the present invention will be further described with reference to the accompanying drawings;
FIG. 1 is a block diagram of a first embodiment of the present invention;
fig. 2 is a structural diagram of a second embodiment of the present invention.
Detailed Description
The first embodiment is as follows: referring to fig. 1, the shaft hub connecting device comprises an inner sleeve 7 and an outer sleeve 4, an annular oil cavity 6 is formed between the outer sleeve 4 and the inner sleeve 7, an oil filling hole 3 and an oil discharging hole 12 are formed in the outer sleeve 4, a flange 5 is arranged at the end of the inner sleeve 7, a step (a part which is in contact with the flange in fig. 1 and is not shown) is arranged on the outer sleeve 4, the flange 5 of the inner sleeve 7 is lapped on the step of the outer sleeve 4, inclined planes 8 and 10 are arranged on the flange 5 and the outer sleeve 7 respectively, the two inclined planes 8 and 10 form a horn mouth structure, a welding object 9 is applied in the horn mouth, and the outer sleeve 4 and the inner sleeve 7 are connected into a whole. This kind of welding that sets up the face of weld into horn mouth shape is called groove weld, can increase its face of weld during the welding, and because the transmission of pressure can not be used in the parallel direction of face of weld, consequently, after welding endotheca 7 and overcoat 4, have stronger firmness, set up behind the flange 5 on endotheca 7, and set up on the flange inclined plane 10, consequently, when adopting the horn mouth structure, make the inclined plane 10 of horn mouth move outward, consequently, increased the thickness at endotheca 7 flange department, and increased the rigidity intensity of endotheca. The oil plug 11 is arranged in the oil outlet 12, the oil plug 11 is a plug, namely, the inner wall of the oil outlet 12 is provided with threads, and the oil plug 11 is provided with threads matched with the oil outlet 12, so that the oil plug is convenient to disassemble. Therefore, in the structure of the embodiment, the inner sleeve 7 and the outer sleeve 4 are directly welded by groove welding, the connecting structure of the cylindrical pin in the background technology is eliminated, and the strength and firmness after the inner sleeve and the outer sleeve are combined are greatly enhanced. 3 departments of oil filler point are equipped with the high pressure and annotate fat valve 2, be equipped with manometer 1 on the pipeline that fat valve 2 is connected is annotated to the high pressure, and this kind of structure is when annotating with high-pressure grease, directly can follow the operating pressure that shows in the oil cavity on manometer 1, has cancelled the sensor structure among the background for its use is more convenient, and the structure is simpler.
Example two: referring to fig. 2, this embodiment is a further improvement of the first embodiment, namely, an annular groove (not shown) is added on the outer sleeve 7, an annular body 13 with an inward bend is arranged on the flange 5, and the annular body 13 is matched with the annular groove. This kind of structure, when inner cover 7 accompanies with overcoat 4, ring body 13 on the flange 5 inserts the ring channel after, not only makes the combination of endotheca and overcoat more firm, makes the axial length of annular oil pocket extend moreover, can increase the pressure behind the annular oil pocket oiling more, has fine utility model. The other structure is the same as the first embodiment.
Claims (3)
1. The utility model provides a shaft hub connecting device, includes endotheca and overcoat, form annular oil pocket between overcoat and the endotheca, be equipped with oil filler point and oil drain hole on the overcoat, its characterized in that the tip of endotheca is equipped with the flange, be equipped with the step on the overcoat, the flange overlap joint of endotheca is in on the step of overcoat, all be equipped with the inclined plane on flange and the overcoat, two inclined planes form horn mouth structure, apply the welding thing in the horn mouth, will overcoat and endotheca are connected and are become a whole.
2. The hub connection means of claim 1 wherein said outer sleeve defines an annular groove and said flange defines an inwardly turned annular body that mates with said annular groove.
3. The hub connection means of claim 1, wherein said grease inlet is provided with a high pressure grease injection valve, and wherein a pressure gauge is provided in a conduit to which said high pressure grease injection valve is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921510286.2U CN211009622U (en) | 2019-09-11 | 2019-09-11 | Shaft hub connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921510286.2U CN211009622U (en) | 2019-09-11 | 2019-09-11 | Shaft hub connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211009622U true CN211009622U (en) | 2020-07-14 |
Family
ID=71478441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921510286.2U Active CN211009622U (en) | 2019-09-11 | 2019-09-11 | Shaft hub connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211009622U (en) |
-
2019
- 2019-09-11 CN CN201921510286.2U patent/CN211009622U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |