CN215890863U - Composite friction ring with sealing and follow-up functions - Google Patents
Composite friction ring with sealing and follow-up functions Download PDFInfo
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- CN215890863U CN215890863U CN202122356391.9U CN202122356391U CN215890863U CN 215890863 U CN215890863 U CN 215890863U CN 202122356391 U CN202122356391 U CN 202122356391U CN 215890863 U CN215890863 U CN 215890863U
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Abstract
The utility model discloses a composite friction ring with sealing and follow-up functions, and relates to the technical field of numerical control machine tool machining. In order to solve the problem that the guide mechanism and a workpiece cannot synchronously rotate due to insufficient friction force, the utility model provides a composite friction ring with sealing and follow-up functions, which comprises a friction ring body, a polyurethane friction plate and an O-shaped sealing ring; the center of the friction ring body is a conical hole, a plurality of fan-shaped holes for placing polyurethane friction plates are uniformly distributed around the conical hole, a connecting hole is formed between every two fan-shaped holes, and a bolt fixed on the guide sleeve is arranged at each connecting hole. The utility model provides a composite friction ring with sealing and follow-up functions, which is characterized in that an O-shaped sealing ring and four fan-shaped holes on a friction ring body are arranged, and a polyurethane friction plate is filled, so that the sealing performance is improved, the friction coefficient is increased, and a guide mechanism is dragged by the friction force between the guide mechanism and a workpiece to synchronously rotate.
Description
Technical Field
The utility model relates to the technical field of numerical control machine tool machining, in particular to a composite friction ring with sealing and follow-up functions.
Background
In the BTA double-rotation inner chip removal drilling processing, a workpiece adopts a three-jaw chuck with stronger universality and a hydraulic center frame centering structure, when a small-diameter workpiece is drilled, due to the limitation of a workpiece clamping mode, a cutter guide mechanism is usually a hard alloy guide sleeve, and a friction pair formed between the cutter guide mechanism and the contacted workpiece is very low in friction coefficient and insufficient in friction force, so that the guide mechanism cannot be dragged to synchronously rotate through the friction force between the cutter guide mechanism and the workpiece, and the friction burn of the end surface of the workpiece is caused.
In view of the foregoing, there is a need for a composite friction ring with sealing and follower functions that overcomes the above-mentioned problems.
Disclosure of Invention
The object of the present invention is to provide a composite friction ring with sealing and following functions that overcomes the above-mentioned problems.
In order to achieve the purpose, the utility model adopts the technical scheme that: the composite friction ring with sealing and following functions is characterized in that,
the composite friction ring comprises a friction ring body, a polyurethane friction plate and an O-shaped sealing ring;
the center of the friction ring body is a conical hole, four fan-shaped holes for placing polyurethane friction plates are uniformly distributed around the conical hole, a connecting hole is formed between every two fan-shaped holes, and a bolt fixed on the guide sleeve is arranged at each connecting hole;
the O-shaped sealing ring is positioned between the contact surfaces of the friction ring body and the guide sleeve;
the thickness of the polyurethane friction plate is 0.5mm greater than that of the friction ring body.
Further, the shape and the size of the polyurethane friction plate are the same as those of the fan-shaped hole;
the number of the fan-shaped holes is four.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the composite friction ring with the sealing and follow-up functions, the O-shaped sealing ring is arranged between the contact surface of the friction ring body and the guide sleeve, so that the guide sleeve can be effectively prevented from leaking oil in the deep hole drilling process.
2. According to the composite friction ring with the sealing and follow-up functions, the four fan-shaped holes in the friction ring body are filled with the polyurethane friction plates, so that an annular oil film can be formed by preventing a small amount of pressure oil from leaking from the center, and meanwhile, a workpiece can be contacted with the polyurethane friction plates in advance to form a friction pair capable of transmitting enough torque.
3. According to the composite friction ring with the sealing and follow-up functions, the center of the friction ring body is a conical hole, so that the friction ring body is favorably fixed on the guide sleeve, and the operation is facilitated.
Drawings
FIG. 1 is a schematic structural diagram of a composite friction ring with sealing and follow-up functions provided by the present invention;
FIG. 2 is a front view of the friction ring body of the present invention;
FIG. 3 is a rear view of the friction ring body of the present invention;
FIG. 4 is a schematic structural view of a polyurethane friction plate of the present invention;
description of reference numerals:
1. a friction ring body; 11. a tapered hole; 12. a sector hole; 13. connecting holes; 14. a bolt;
2. a polyurethane friction plate; 3. an O-shaped sealing ring; 4. and a guide sleeve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
Referring to fig. 1, a composite friction ring with sealing and follow-up functions includes a friction ring body 1, a polyurethane friction plate 2 and an O-ring 3;
the center of the friction ring body 1 is a tapered hole 11, four fan-shaped holes 12 for placing the polyurethane friction plate 2 are uniformly distributed around the tapered hole 11, a connecting hole 13 is respectively arranged between every two fan-shaped holes 12, and a bolt 14 fixed on the guide sleeve 4 is respectively arranged at the connecting hole 13;
the O-shaped sealing ring 3 is positioned between the contact surfaces of the friction ring body 1 and the guide sleeve 4;
the thickness of the polyurethane friction plate 2 is 0.5mm greater than that of the friction ring body 1.
According to the composite friction ring with the sealing and follow-up functions, in the machining process, the O-shaped sealing ring 3 is arranged between the contact surfaces of the friction ring body 1 and the guide sleeve 4, so that oil leakage of the guide sleeve 4 in the deep hole drilling process is prevented; a taper hole 11 in the center of a friction ring body 1 is fixed on a guide sleeve 4, the friction ring body 1 is connected with the guide sleeve 4 through a connecting hole 13 and a bolt 14, four fan-shaped holes 12 which are uniformly distributed around the taper hole 11 are filled with polyurethane friction plates 2, and the thickness of each polyurethane friction plate 2 is 0.5mm larger than that of the friction ring body 1, so that the polyurethane friction plates 1 can be ensured to be in contact with a workpiece in advance, an enough friction pair is formed, and when the workpiece rotates, the guide sleeve 4 is driven to synchronously rotate.
According to the composite friction ring with the sealing and following functions, the shape and the size of the polyurethane friction plate 2 are the same as those of the sector hole 12; the number of the fan-shaped holes 12 is four.
According to the composite friction ring with the sealing and following functions, the shape and the size of the polyurethane friction plate 2 are the same as those of the fan-shaped hole 12, so that the polyurethane friction plate 2 can be fixed in the fan-shaped hole 12 conveniently; the number of the fan-shaped holes 12 is preferably four, or 6 or 8, and a gap is ensured between the fan-shaped holes 12, so that an annular oil film can be effectively prevented from being formed due to a small amount of pressure oil leaking from the center, the friction coefficient of a combining surface of a friction pair is reduced, and the guide sleeve 4 cannot be dragged to synchronously rotate, so that the workpiece is damaged.
The present invention has been further described with reference to the examples, but the present invention is not limited to the above-described embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (2)
1. Compound friction ring with sealed and follow-up function, its characterized in that:
the composite friction ring comprises a friction ring body (1), a polyurethane friction plate (2) and an O-shaped sealing ring (3);
the center of the friction ring body (1) is provided with a conical hole (11), a plurality of fan-shaped holes (12) for placing the polyurethane friction plate (2) are uniformly distributed around the conical hole (11), a connecting hole (13) is respectively arranged between every two fan-shaped holes (12), and a bolt (14) fixed on the guide sleeve (4) is respectively arranged at the connecting hole (13);
the O-shaped sealing ring (3) is positioned between the contact surfaces of the friction ring body (1) and the guide sleeve (4);
the thickness of the polyurethane friction plate (2) is 0.5mm greater than that of the friction ring body (1).
2. The composite friction ring with sealing and following functions according to claim 1, characterized in that:
the shape and the size of the polyurethane friction plate (2) are the same as those of the fan-shaped hole (12);
the number of the fan-shaped holes (12) is four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122356391.9U CN215890863U (en) | 2021-09-28 | 2021-09-28 | Composite friction ring with sealing and follow-up functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122356391.9U CN215890863U (en) | 2021-09-28 | 2021-09-28 | Composite friction ring with sealing and follow-up functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215890863U true CN215890863U (en) | 2022-02-22 |
Family
ID=80347639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122356391.9U Active CN215890863U (en) | 2021-09-28 | 2021-09-28 | Composite friction ring with sealing and follow-up functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215890863U (en) |
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2021
- 2021-09-28 CN CN202122356391.9U patent/CN215890863U/en active Active
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