CN215634960U - Rotary sealing device of adhesive tape production equipment - Google Patents
Rotary sealing device of adhesive tape production equipment Download PDFInfo
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- CN215634960U CN215634960U CN202122037577.8U CN202122037577U CN215634960U CN 215634960 U CN215634960 U CN 215634960U CN 202122037577 U CN202122037577 U CN 202122037577U CN 215634960 U CN215634960 U CN 215634960U
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Abstract
The utility model provides a rotary sealing device of rubber cloth production equipment, which comprises a connecting rear end cover, wherein the connecting rear end cover is in clearance connection with an equipment connecting inner pipe, a connecting shaft is sleeved outside the equipment connecting inner pipe, a sealing H-shaped ring soaked with metal graphite is embedded at the rear end of the connecting shaft, a waveform auxiliary spring is arranged between the front end of the sealing H-shaped ring and the connecting shaft, the rear end of the sealing H-shaped ring and a hard alloy ring form a sealing pair, the hard alloy ring is embedded on a butterfly-shaped ring, the butterfly-shaped ring is positioned on a middle connecting flange, and a spring group is arranged between the upper part of the butterfly-shaped ring and the middle connecting flange. The utility model adopts the wave-shaped auxiliary spring and the spring group to realize double-seal abrasion compensation and pressure bidirectional buffering, has better seal reliability, can enhance the high-temperature resistance and high-pressure resistance by adopting the hard alloy and the sealed H-shaped ring soaked with metal graphite, and can greatly shorten the length of the rotary sealing device by directly embedding the sealed H-shaped ring in the connecting shaft, thereby leading the structure to be compact.
Description
Technical Field
The utility model relates to the technical field of rotary sealing, in particular to a rotary sealing device of adhesive tape production equipment.
Background
As the rotary sealing device of the rubberized fabric production equipment in the market at present basically adopts the planar rotary joint, as shown in figure 4, the rotary sealing device is suitable for aqueous medium and has high adaptable rotating speed, but the adaptable temperature of the structure is low, the normal adaptation temperature is below 200 ℃, the pressure resistance is low, the pressure resistance is generally only within 1.0MPA, in addition, the overall size of the joint is also long, the equipment is inconvenient to install, if the conventional rotary joint is forcibly installed, the connection mode of the equipment needs to be changed, the repayment is avoided, the production cost is increased, and the economic benefit is reduced.
Therefore, the following problems exist in the actual use of the market conventional rotary joint: firstly, the use working condition of the adhesive tape production equipment is generally higher than that of the conventional rubber and plastic machinery, the highest temperature can reach 200 ℃, the highest rotating speed can reach 200 revolutions per minute, the highest pressure can reach 16 kilograms, and the service life of a common rotary joint under the working condition is shorter, generally about 3 months and even shorter, so that the maintenance cost is higher; secondly, as the adhesive tape production equipment is further reformed and the production efficiency is improved, the installation space reserved for the rotary joint is effective, so that new requirements are provided for the structural form of the rotary joint, and the conventional rotary joint structure cannot meet the use requirements of customers.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the utility model aims to provide a rotary sealing device of adhesive tape production equipment, so as to overcome the defects in the prior art.
In order to achieve the purpose, the utility model provides a rotary sealing device of adhesive tape production equipment, which comprises a connecting rear end cover, an intermediate connecting flange, an equipment connecting inner pipe and a connecting front end cover, wherein the connecting rear end cover is in clearance connection with the equipment connecting inner pipe; a connecting shaft is sleeved outside the equipment connecting inner pipe, a sealing thread is arranged at the front shaft end of the connecting shaft and is used for being connected with a thread on an equipment roller, a sealing H-shaped ring is embedded at the rear end of the connecting shaft, the sealing H-shaped ring is made of metal-impregnated graphite, and a third O-shaped sealing ring is arranged between the inner wall of the connecting shaft and the outer wall of the sealing H-shaped ring for sealing; a wave-shaped auxiliary spring is arranged between the front end of the sealing H-shaped ring and the connecting shaft for sealing abrasion compensation, the rear end of the sealing H-shaped ring and the hard alloy ring form sealing pairing, and the hard alloy ring is embedded on the butterfly-shaped ring; the butterfly ring is positioned on the middle connecting flange, a second O-shaped sealing ring is arranged between the outer wall of the butterfly ring and the inner wall of the middle connecting flange for sealing, a spring group is arranged between the upper part of the butterfly ring and the middle connecting flange for sealing abrasion compensation, and an elastic cylindrical pin is arranged between the lower part of the butterfly ring and the middle connecting flange so that the middle connecting flange and the butterfly ring are kept in a static state; the rear end of the middle connecting flange is embedded into the rear end cover, the front end of the middle connecting flange is embedded into the front end cover, and the lower part of the middle connecting flange is fixedly connected with the front end cover through a first hexagon socket head cap bolt.
Through the technical scheme, wave form auxiliary spring and spring assembly combination apply to rotary seal device's sealed wear compensation and the two-way buffering of pressure, the double containment mode makes rotary seal device have better sealing reliability, the two-way buffering of axial makes rotary seal device can be better when receiving high pressure or external impact the protection sealing member not destroyed, adopt carbide and the sealed H type ring that soaks metallic graphite can strengthen rotary seal device high temperature resistant and high pressure resistant performance, and the direct embedded length that can shorten rotary seal device in the connecting axle of sealed H type ring by a wide margin, make compact structure.
As a further description of the rotary sealing device of the adhesive tape production equipment of the present invention, preferably, the sealing H-shaped ring is provided with two symmetrical parallel concave edges, and the end of the connecting shaft is provided with two symmetrical parallel convex edges, so that the sealing H-shaped ring is embedded in the connecting shaft, and the synchronous operation of the sealing H-shaped ring and the connecting shaft is ensured.
As a further description of the rotary sealing device of the adhesive tape production equipment of the present invention, preferably, two threaded connection grooves are arranged side by side in the same direction at the bottom of the square outer end face of the connection rear end cap, and are respectively connected with the inlet and outlet pipes as a left connection port and a right connection port; the inner wall of the equipment connecting inner pipe, the inner wall of the equipment connecting rear end cover and the right connecting port are communicated in sequence to form a first medium channel; the inner wall of the connecting shaft, the inner wall of the sealed H-shaped ring, the inner wall of the hard alloy ring, the inner wall of the butterfly-shaped ring, the inner wall of the middle connecting flange, the inner wall of the connecting rear end cover and the left connecting port are sequentially communicated to form a second medium channel.
As a further description of the rotary sealing device of the adhesive tape production equipment of the present invention, preferably, an end face metal composite gasket is disposed between the connection rear end cap and the intermediate connection flange.
As a further description of the rotary sealing device of the adhesive tape production equipment of the present invention, preferably, two deep groove ball bearings are sleeved between the connecting shaft and the connecting front end cover.
As a further description of the rotary sealing device of the adhesive tape production equipment of the present invention, preferably, the right side of the deep groove ball bearing is fixed by a circlip for a shaft and a circlip for a hole, the circlip for the shaft is inserted into the connecting shaft, and the circlip for the hole is inserted into the connecting front end cover.
As a further description of the rotary sealing device of the adhesive tape production apparatus of the present invention, preferably, the connection rear end cap and the intermediate connection flange are connected by a second hexagon socket head cap bolt.
As a further description of the rotary sealing device of the adhesive tape production equipment, preferably, the cemented carbide ring is embedded on the butterfly ring in an ultrahigh temperature thermal embedding manner.
The utility model has the following beneficial effects: the utility model adopts the combination of the wave-shaped auxiliary spring and the spring group to be applied to the seal abrasion compensation and the pressure bidirectional buffering of the rotary sealing device, the double-seal mode ensures that the rotary sealing device has better seal reliability, the axial bidirectional buffering ensures that the rotary sealing device can better protect a sealing element from being damaged when the rotary sealing device is subjected to high pressure or external impact, the sealing H-shaped ring adopting the hard alloy and the metal-impregnated graphite can enhance the high-temperature resistance and high-pressure resistance of the rotary sealing device, and the length of the rotary sealing device can be greatly shortened by directly embedding the sealing H-shaped ring in the connecting shaft, so that the structure is compact.
Drawings
Fig. 1 is a schematic structural view of a rotary sealing device of the rubberized fabric production apparatus of the present invention.
Fig. 2 is a left side view of the rotary sealing device of the blanket manufacturing apparatus of the present invention.
Fig. 3 is a schematic view illustrating the assembly of the sealing H-ring and the connecting shaft according to the present invention.
Fig. 4 is a schematic structural view of a planar rotary joint in the prior art.
In the drawings: the device comprises a rear end cover 1, a first O-shaped sealing ring 2, an end face metal composite pad 3, a second O-shaped sealing ring 4, a middle connecting flange 5, a spring set 6, a butterfly ring 7, a hard alloy ring 8, a deep groove ball bearing 9, a connecting shaft 10, a second inner hexagonal bolt 11, a shaft elastic retainer ring 12, a hole elastic retainer ring 13, a waveform auxiliary spring 14, a third O-shaped sealing ring 15, a sealing H-shaped ring 16, an elastic cylindrical pin 17, a first inner hexagonal bolt 18, a device connecting inner tube 19 and a connecting front end cover 20.
Detailed Description
To further understand the structure, characteristics and other objects of the present invention, the following detailed description is given with reference to the accompanying preferred embodiments, which are only used to illustrate the technical solutions of the present invention and are not to limit the present invention.
As shown in fig. 1, fig. 1 is a schematic structural view of a rotary sealing device of a tape production apparatus according to the present invention; the rotary sealing device of the adhesive tape production equipment comprises a connecting rear end cover 1, an intermediate connecting flange 5, an equipment connecting inner pipe 19 and a connecting front end cover 20, wherein the connecting rear end cover 1 is in clearance connection with the equipment connecting inner pipe 19, and a first O-shaped sealing ring 2 is arranged between the inner wall of the connecting rear end cover 1 and the outer wall of the equipment connecting inner pipe 19 for sealing; a connecting shaft 10 is sleeved outside the equipment connecting inner pipe 19, a sealing thread is arranged at the front shaft end of the connecting shaft 10 and is used for being connected with a thread on an equipment roller, a sealing H-shaped ring 16 is embedded at the rear end of the connecting shaft 10, the sealing H-shaped ring 16 is made of metal-impregnated graphite, and a third O-shaped sealing ring 15 is arranged between the inner wall of the connecting shaft 10 and the outer wall of the sealing H-shaped ring 16 for sealing; a wave-shaped auxiliary spring 14 is arranged between the front end of the sealing H-shaped ring 16 and the connecting shaft 10 for sealing abrasion compensation, the rear end of the sealing H-shaped ring 16 and the hard alloy ring 8 form a sealing pair, the hard alloy ring 8 is embedded on the butterfly-shaped ring 7, and preferably, the hard alloy ring 8 is embedded on the butterfly-shaped ring 7 in an ultrahigh temperature hot embedding manner; a butterfly ring 7 is positioned on the middle connecting flange 5, a second O-shaped sealing ring 4 is arranged between the outer wall of the butterfly ring 7 and the inner wall of the middle connecting flange 5 for sealing, a spring group 6 is arranged between the upper part of the butterfly ring 7 and the middle connecting flange 5 for sealing abrasion compensation, and an elastic cylindrical pin 17 is arranged between the lower part of the butterfly ring 7 and the middle connecting flange 5 for keeping the middle connecting flange 5 and the butterfly ring 7 in a static state; the rear end of the middle connecting flange 5 is embedded in the rear end cover 1, the front end of the middle connecting flange 5 is embedded in the front end cover 20, and the lower part of the middle connecting flange 5 is fixedly connected with the front end cover 20 through a first hexagon socket head cap bolt 18.
As shown in fig. 3, the sealing H-ring 16 has two symmetrical parallel concave edges, and the end of the connecting shaft 10 has two symmetrical parallel convex edges, so that the sealing H-ring 16 is embedded in the connecting shaft 10 to ensure the synchronous operation of the sealing H-ring 16 and the connecting shaft 10.
As shown in fig. 2, two threaded connection grooves are arranged side by side in the same direction at the bottom of the square outer end face of the connection rear end cap 1, and are respectively connected with the inlet and outlet pipeline as a left connection port L and a right connection port R. The inner wall of the equipment connecting inner pipe 19, the inner wall of the connecting rear end cover 1 and the right connector R are communicated in sequence to form a first medium channel; the inner wall of the connecting shaft 10, the inner wall of the sealing H-shaped ring 16, the inner wall of the hard alloy ring 8, the inner wall of the butterfly ring 7, the inner wall of the middle connecting flange 5, the inner wall of the connecting rear end cover 1 and the left connecting port L are communicated in sequence to form a second medium channel.
As shown in fig. 1, an end-face metal composite pad 3 is arranged between the connection rear end cover 1 and the intermediate connection flange 5. Two deep groove ball bearings 9 are sleeved between the connecting shaft 10 and the connecting front end cover 20. The right side of the deep groove ball bearing 9 is fixed by a shaft elastic retainer ring 12 and a hole elastic retainer ring 13, the shaft elastic retainer ring 12 is inserted on the connecting shaft 10, and the hole elastic retainer ring 13 is inserted on the connecting front end cover 20. The rear end cover 1 is connected with the middle connecting flange 5 through a second inner hexagon bolt 11.
Above-mentioned adhesive tape production facility rotary seal device is through the structural style who changes rotary seal device, realizes the reduction of rotary seal device whole size from the structure of optimizing rotary seal device, for example the connector of business turn over medium designs side by side, the design of spring assembly, the design of wave form auxiliary spring, sealed H type ring then directly embedded can all shorten rotary seal device's length at the connecting axle etc. by a wide margin. Through the structure and the material of the sealed composition form of change, adopt the sealed wearing and tearing compensation and the two-way buffering of pressure of spring assembly and wave form auxiliary spring, the two-way compensation mode makes rotary seal device have better sealing reliability, the two-way buffering of axial makes rotary seal device can be better when receiving high pressure or external impact the protection sealing member not destroyed, adopt carbide and the sealed H type ring that soaks metallic graphite to increase rotary seal device's temperature resistance and pressure-resistant ability, keep former planar seal's adaptable fast-speed advantage simultaneously, thereby prolong adhesive tape production facility rotary seal device's life, and the maintenance cost is reduced, and economic benefits is improved.
It should be noted that the above-mentioned embodiments and embodiments are intended to demonstrate the practical application of the technical solution provided by the present invention, and should not be construed as limiting the scope of the present invention. Various modifications, equivalent substitutions, or improvements may be made by those skilled in the art within the spirit and principles of the utility model. The scope of the utility model is to be determined by the appended claims.
Claims (8)
1. A rotary sealing device of adhesive tape production equipment is characterized by comprising a connecting rear end cover (1), a middle connecting flange (5), an equipment connecting inner pipe (19) and a connecting front end cover (20), wherein,
the rear connecting end cover (1) is in clearance connection with the equipment connecting inner pipe (19), and a first O-shaped sealing ring (2) is arranged between the inner wall of the rear connecting end cover (1) and the outer wall of the equipment connecting inner pipe (19) for sealing;
a connecting shaft (10) is sleeved outside the equipment connecting inner pipe (19), a sealing thread is arranged at the front shaft end of the connecting shaft (10) and is used for being connected with a thread on an equipment roller, a sealing H-shaped ring (16) is embedded at the rear end of the connecting shaft (10), the sealing H-shaped ring (16) is made of metal-impregnated graphite, and a third O-shaped sealing ring (15) is arranged between the inner wall of the connecting shaft (10) and the outer wall of the sealing H-shaped ring (16) for sealing;
a wave-shaped auxiliary spring (14) is arranged between the front end of the sealing H-shaped ring (16) and the connecting shaft (10) to compensate for sealing abrasion, the rear end of the sealing H-shaped ring (16) and the hard alloy ring (8) form sealing pairing, and the hard alloy ring (8) is embedded on the butterfly-shaped ring (7);
the butterfly ring (7) is positioned on the middle connecting flange (5), a second O-shaped sealing ring (4) is arranged between the outer wall of the butterfly ring (7) and the inner wall of the middle connecting flange (5) for sealing, a spring group (6) is arranged between the upper part of the butterfly ring (7) and the middle connecting flange (5) for sealing wear compensation, and an elastic cylindrical pin (17) is arranged between the lower part of the butterfly ring (7) and the middle connecting flange (5) so that the middle connecting flange (5) and the butterfly ring (7) can keep a static state;
the rear end of the middle connecting flange (5) is embedded into the rear end cover (1), the front end of the middle connecting flange (5) is embedded into the front end cover (20), and the lower part of the middle connecting flange (5) is fixedly connected with the front end cover (20) through a first inner hexagonal bolt (18).
2. The rotary seal device for rubberized fabric production equipment according to claim 1, wherein the sealing H-ring (16) is provided with two symmetrical parallel concave edges, and the end of the connecting shaft (10) is provided with two symmetrical parallel convex edges, so that the sealing H-ring (16) is embedded in the connecting shaft (10) to ensure the synchronous operation of the sealing H-ring (16) and the connecting shaft (10).
3. The rotary sealing device of the rubberized fabric production apparatus according to claim 1, wherein the bottom of the square outer end face of the connection rear end cap (1) is provided with two threaded connection grooves in the same direction side by side, as a left connection port (L) and a right connection port (R) to be connected with the inlet and outlet pipes, respectively;
the inner wall of the equipment connecting inner pipe (19), the inner wall of the connecting rear end cover (1) and the right connecting port (R) are communicated in sequence to form a first medium channel;
the inner wall of the connecting shaft (10), the inner wall of the sealed H-shaped ring (16), the inner wall of the hard alloy ring (8), the inner wall of the butterfly ring (7), the inner wall of the middle connecting flange (5), the inner wall of the connecting rear end cover (1) and the left connecting port (L) are communicated in sequence to form a second medium channel.
4. The rotary seal of an adhesive tape production facility according to claim 1, wherein an end-face metal composite gasket (3) is provided between the connection rear end cap (1) and the intermediate connection flange (5).
5. The rotary sealing device of rubberized fabric production apparatus according to claim 1, wherein two deep groove ball bearings (9) are sleeved between the connecting shaft (10) and the connecting front end cap (20).
6. The rotary sealing device of rubberized fabric production apparatus according to claim 5, wherein the right side of the deep groove ball bearing (9) is fixed by a circlip (12) for shaft and a circlip (13) for hole, the circlip (12) for shaft is inserted on the connecting shaft (10), and the circlip (13) for hole is inserted on the connecting front end cap (20).
7. The rotary sealing device of the rubberized fabric production apparatus according to claim 1, wherein the connection between the connection rear end cap (1) and the intermediate connection flange (5) is performed by a second hexagon socket head cap screw (11).
8. The rotary sealing device of rubberized fabric production apparatus according to claim 1, wherein the cemented carbide ring (8) is inlaid on the butterfly ring (7) by means of ultra-high temperature hot-inlaid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122037577.8U CN215634960U (en) | 2021-08-27 | 2021-08-27 | Rotary sealing device of adhesive tape production equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122037577.8U CN215634960U (en) | 2021-08-27 | 2021-08-27 | Rotary sealing device of adhesive tape production equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215634960U true CN215634960U (en) | 2022-01-25 |
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ID=79902979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122037577.8U Active CN215634960U (en) | 2021-08-27 | 2021-08-27 | Rotary sealing device of adhesive tape production equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215634960U (en) |
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2021
- 2021-08-27 CN CN202122037577.8U patent/CN215634960U/en active Active
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