CN211398325U - Expansion connecting sleeve - Google Patents
Expansion connecting sleeve Download PDFInfo
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- CN211398325U CN211398325U CN201922388956.4U CN201922388956U CN211398325U CN 211398325 U CN211398325 U CN 211398325U CN 201922388956 U CN201922388956 U CN 201922388956U CN 211398325 U CN211398325 U CN 211398325U
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- outer ring
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Abstract
An expansion connecting sleeve relates to the field of mechanical parts and comprises an inner ring and an outer ring, wherein the outer ring comprises a side outer ring and a side outer ring, the side outer ring and the side outer ring are respectively arranged outside two sides of the inner ring, the inner ring comprises a middle ring and two conical rings extending outwards, the outer circular surfaces of two sides of the middle ring are respectively provided with an inward step ring A, a plurality of screw holes are uniformly arranged along the circumferential surface of the middle ring at intervals, the middle holes of the side outer ring and the other side outer ring are conical surfaces, step rings B are arranged on the inner surfaces of the outer ring on one side and the outer ring on the other side, the step rings B are respectively matched with the step rings A on the two side surfaces of the middle ferrule of the inner ring, a plurality of step holes are uniformly arranged at intervals in the circumferential direction of the outer ring on one side, a plurality of screw holes are uniformly arranged at intervals in the circumferential direction of the outer ring on the other side, high-strength screws are arranged in the step holes, and the high-strength screws respectively penetrate through the screw holes of the inner ring and then are arranged in the screw holes; the utility model discloses the reliability is high, and convenient to detach.
Description
Technical Field
The utility model belongs to the technical field of the machine part and specifically relates to a tight adapter sleeve expands.
Background
The expansion coupling sleeve is widely matched with a speed increasing and decreasing machine of a fan as an important part of the fan, so that the fan is ensured to be in good contact with a transmission shaft, and the normal work of the fan is ensured; the expansion sleeve is a keyless connection device, and its principle and application are that under the action of high-strength tension bolt, a huge holding force is produced between inner ring and shaft and between outer ring and wheel hub so as to implement keyless connection of machine element and shaft. The expansion connecting sleeve commonly used at present can not realize rapid operation during installation and disassembly, is low in efficiency, and can not effectively guarantee the fastening safety.
Disclosure of Invention
In order to overcome the deficiency in the background art, the utility model discloses an expansion connecting sleeve.
In order to realize the purpose, the utility model adopts the following technical scheme:
an expansion connecting sleeve comprises an inner ring and an outer ring, wherein the outer ring comprises a side outer ring and a side outer ring, the side outer ring and the side outer ring are respectively arranged outside two sides of the inner ring, the inner ring comprises a middle ferrule and two conical ferrules extending outwards from two sides, recessed step rings A are arranged on the outer circular surfaces of two sides of the middle ferrule, a plurality of screw holes are uniformly arranged on the circumferential surface of the middle ferrule at intervals, the middle holes of the side outer ring and the side outer ring are conical surfaces and matched with the outer surfaces of the conical ferrules on two sides of the inner ring, the taper of the conical surfaces of the side outer ring and the side outer ring is 3-6 degrees, step rings B are respectively arranged on the inner surfaces of the side outer ring and the side outer ring, the step rings B are respectively matched with the step rings A on two side surfaces of the middle ferrule of the inner ring, a plurality of step holes are uniformly arranged at intervals along the circumferential direction of the side outer ring, all be equipped with high strength screw in the step hole, high strength screw sets up in the screw hole after passing the screw of inner circle respectively, has all seted up the seal groove on the both sides of inner circle hole and the inner ring face that is close to the tip, all is equipped with the sealing washer in the seal groove.
The expansion connecting sleeve is provided with screw holes, step holes and screw holes which are the same in number and are arranged correspondingly.
The expansion connecting sleeve is characterized in that the conical ferrules extending outwards at two sides of the middle ferrule are symmetrically arranged.
Since the technical scheme is used, the utility model discloses following beneficial effect has:
the expansion connecting sleeve has the advantages that the two outer rings are arranged, the manufacturing is convenient, the installation is simple, the connection is realized through the high-strength bolt after the step rings are clamped, the reliability is high, the load bearing capacity of the inner ring and the outer ring is higher, and the protection equipment is not damaged; sealing rings are arranged in the sealing grooves on the two sides of the inner ring surface of the inner ring, so that the friction force between the sealing rings and the shaft is increased, and the connection is more stable; the utility model discloses have good interchangeability, and convenient to detach.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
in the figure: 1. an inner ring; 2. a step ring A; 3. a side outer ring; 4. screw holes; 5. a conical surface; 6. a high strength screw; 7. a stepped bore; 8. the outer ring at the other side; 9. a step ring B; 10. sealing the groove.
Detailed Description
The invention will be explained in more detail by the following examples, which disclose the invention and are intended to protect all technical improvements within the scope of the invention.
The expansion connecting sleeve combined with the attached figure 1 comprises an inner ring 1 and an outer ring, wherein the outer ring comprises a side outer ring 3 and a side outer ring 8, the side outer ring 3 and the side outer ring 8 are respectively arranged outside two sides of the inner ring 1, the inner ring 1 comprises a middle ferrule and two conical ferrules extending outwards, recessed step rings A2 are arranged on the outer circular surfaces of two sides of the middle ferrule, a plurality of screw holes are uniformly arranged along the circumferential surface of the middle ferrule at intervals, the middle holes of the side outer ring 3 and the side outer ring 8 are both conical surfaces 5 and are matched with the outer surfaces of the conical ferrules on two sides of the inner ring 1, step rings B9 are arranged on the inner surfaces of the side outer ring 3 and the side outer ring 8, the step rings B9 are respectively matched with the step rings A2 on two side surfaces of the middle ferrule of the inner ring 1, a plurality of step holes 7 are uniformly arranged along the circumferential direction of the side outer ring 3 at intervals, a plurality of screw holes 4 are uniformly arranged, all be equipped with high strength screw 6 in step hole 7, high strength screw 6 sets up in screw hole 4 after passing the screw of inner circle 1 respectively, has all seted up seal groove 10 on the both sides of the inner circle 1 hole and the inner ring face that is close to the tip, all is equipped with the sealing washer in seal groove 10.
The expansion connecting sleeve is provided with the same and corresponding screw holes 4, step holes 7 and screw holes.
The expansion connecting sleeve is characterized in that the conical ferrules extending outwards at two sides of the middle ferrule are symmetrically arranged.
The taper of the conical surfaces 5 of the expansion connecting sleeve, namely the outer ring 3 at one side and the outer ring 8 at the other side, is 3-6 degrees.
Implement tight adapter sleeve expand, when the installation, install the sealing washer in the hole both sides seal groove 10 of inner circle 1, the inner circle of sealing washer contacts with the outside of axle, increase frictional force, it is more firm with the fixed of axle, with one side outer lane 3, step ring B9 on the 8 inner faces of opposite side outer lane docks with the step ring A2 of the 1 both sides face of inner circle respectively, one side outer lane 3 after the butt joint, the inner face of opposite side outer lane 8 all contacts with the 1 both sides face of inner circle, step hole 7 of opposite side outer lane 8 is passed to the one end of high strength screw 6, the screw of inner circle 1, fix in screw hole 4 of one side outer lane 3, the main aspects of high strength screw 6 set up on the step of step hole 7.
The part of the utility model not detailed is prior art.
The embodiments selected for the purpose of disclosing the invention, are presently considered to be suitable, it being understood, however, that the invention is intended to cover all variations and modifications of the embodiments, which fall within the scope of the concept and the utility model.
Claims (3)
1. The utility model provides a tight adapter sleeve expands, includes inner circle and outer lane, characterized by: the outer ring comprises a one-side outer ring and a other-side outer ring, the one-side outer ring and the other-side outer ring are respectively arranged outside two sides of the inner ring, the inner ring comprises a middle ferrule and conical ferrules extending outwards from two sides, sunken step rings A begin to be arranged on the outer circular surfaces of two sides of the middle ferrule, a plurality of screw holes are uniformly arranged on the circumferential surface of the middle ferrule at intervals, the middle holes of the one-side outer ring and the other-side outer ring are conical surfaces and are matched with the outer surfaces of the conical ferrules on two sides of the inner ring, the taper of the conical surfaces of the one-side outer ring and the other-side outer ring is 3-6 degrees, step rings B are respectively arranged on the inner surfaces of the one-side outer ring and the other-side outer ring, the step rings B are respectively matched with the step rings A on two side surfaces of the middle ferrule of the inner ring, a, all be equipped with high strength screw in the step hole, high strength screw sets up in the screw hole after passing the screw of inner circle respectively, has all seted up the seal groove on the both sides of inner circle hole and the inner ring face that is close to the tip, all is equipped with the sealing washer in the seal groove.
2. The expansion connecting sleeve according to claim 1, wherein: the screw holes, the step holes and the screw holes are the same in number and are arranged correspondingly.
3. The expansion connecting sleeve according to claim 1, wherein: the conical ferrules extending outwards from the two sides of the middle ferrule are symmetrically arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922388956.4U CN211398325U (en) | 2019-12-27 | 2019-12-27 | Expansion connecting sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922388956.4U CN211398325U (en) | 2019-12-27 | 2019-12-27 | Expansion connecting sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211398325U true CN211398325U (en) | 2020-09-01 |
Family
ID=72233185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922388956.4U Active CN211398325U (en) | 2019-12-27 | 2019-12-27 | Expansion connecting sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211398325U (en) |
-
2019
- 2019-12-27 CN CN201922388956.4U patent/CN211398325U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |