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CN-224201119-U - Rotary cylinder feeding sealing device

CN224201119UCN 224201119 UCN224201119 UCN 224201119UCN-224201119-U

Abstract

The utility model relates to the technical field of rotary cylinder sealing, and particularly discloses a rotary cylinder feeding sealing device which comprises a cylinder and a flange arranged at the end part, wherein a friction ring is arranged at the position of a cylinder feeding hole, the friction ring is sleeved on the outer wall of the cylinder and rotates along with the cylinder, a gap is arranged between the bottom of the friction ring and the outer wall of the cylinder, a packing sealing part is arranged in the gap, a first sealing mechanism is arranged at the left side of the friction ring, one end of the first sealing mechanism, which is far away from the friction ring, is connected with the flange through a plurality of axial supplementing mechanisms, the other end of the first sealing mechanism is in dynamic fit connection with the friction ring, a second sealing mechanism is arranged at the right side of the friction ring, one end of the second sealing mechanism, which is close to the friction ring, is connected with the friction ring, the bottom of the second sealing mechanism is in contact connection with the outer wall of the cylinder, a sliding support assembly is arranged at the bottom of the device, and the top of the sliding support assembly is connected with the first sealing mechanism, so that the problems of poor sealing effect and inconvenient maintenance easily occur in the conventional rotary cylinder feeding sealing device are solved.

Inventors

  • ZHOU BIN
  • LI ZHIGANG

Assignees

  • 四川牧鼎机电科技有限公司

Dates

Publication Date
20260505
Application Date
20250623

Claims (7)

  1. 1. A rotary drum feed sealing device, comprising: The device comprises a barrel body (2), wherein a flange (1) is fixedly arranged at the end part of the barrel body (2), a friction ring (3) is arranged at the position of a feed inlet of the barrel body (2), and the friction ring (3) is sleeved on the outer wall of the barrel body (2) and rotates along with the barrel body (2); A gap is arranged between the bottom of the friction ring (3) and the outer wall of the cylinder body (2), and a packing filler sealing part (4) is arranged in the gap; a first sealing mechanism is arranged on the left side of the friction ring (3), one end, far away from the friction ring (3), of the first sealing mechanism is connected with the flange (1) through a plurality of axial supplementing mechanisms, and the other end of the first sealing mechanism is in dynamic fit connection with the friction ring (3); The right side of the friction ring (3) is provided with a second sealing mechanism, one end of the second sealing mechanism, which is close to the friction ring (3), is connected with the friction ring (3), and the bottom of the second sealing mechanism is in contact connection with the outer wall of the cylinder body (2); the sliding support assembly is arranged at the bottom of the device, and the top of the sliding support assembly is connected with the first sealing mechanism.
  2. 2. The rotary cylinder feeding sealing device according to claim 1, wherein the first sealing mechanism comprises a mounting seat (5) and a first sealing ring (6), the mounting seat (5) and the first sealing ring (6) are sleeved on the outer wall of the cylinder (2), the first sealing ring (6) is dynamically attached to the friction ring (3), the mounting seat (5) is fixedly connected with the first sealing ring (6), and one side, far away from the first sealing ring (6), of the mounting seat (5) is fixedly connected with the flange (1) through a plurality of axial supplementing mechanisms.
  3. 3. The rotary cylinder feeding sealing device according to claim 2, wherein the second sealing mechanism comprises a second sealing ring (7) and a sealing pressing plate (8), the bottom of the second sealing ring (7) is in fit connection with the outer wall of the cylinder (2), one side of the second sealing ring (7) is connected with the friction ring (3), and the other side of the second sealing ring is connected with the sealing pressing plate (8).
  4. 4. The rotary cylinder feeding sealing device according to claim 2, wherein a plurality of axial supplementing mechanisms are uniformly distributed on the mounting seat (5) along the circumferential direction, each axial supplementing mechanism comprises a screw rod (9) and a compression spring (10), one end of each screw rod (9) is fixedly connected with the mounting seat (5), and the other end of each screw rod is fixedly connected with the flange (1); The compression spring (10) is sleeved on the screw rod (9), the compression spring (10) is located between the mounting seat (5) and the flange (1), one end of the compression spring (10) is connected with the flange (1), and the other end of the compression spring is connected with the nut (11) sleeved on the screw rod (9).
  5. 5. The rotary cylinder feeding sealing device according to claim 2, wherein the sliding support assembly comprises a support seat (12) and a riding wheel (13), and the riding wheel (13) is fixedly arranged at the bottom of the support seat (12); The top of the supporting seat (12) is fixedly connected with the mounting seat (5).
  6. 6. A rotary drum feed sealing arrangement according to claim 3, characterized in that the first sealing ring (6) is a polytetrafluoroethylene sealing ring, the packing seal (4) is a polytetrafluoroethylene sealing packing, and the second sealing ring (7) is selected as a high temperature resistant sealing ring.
  7. 7. A rotary drum feed sealing device according to claim 1, characterized in that the drum (2) end is further provided with a gas seal mechanism comprising an air pressure connection pipe penetrating the drum (2), the outlet of which is connected with the packing seal (4).

Description

Rotary cylinder feeding sealing device Technical Field The utility model relates to the technical field of rotary cylinder sealing, in particular to a rotary cylinder feeding sealing device. Background The rotary cylinder (such as rotary kiln, ball mill, drier, etc.) is widely used in cement, mine, chemical industry, food industry, etc., the sealing of the feed end is a key link for guaranteeing the stable operation of equipment, in the material conveying and processing process, the rotary cylinder continuously rotates, the feed inlet needs to meet the requirements of dynamic rotary sealing and stable material conveying, and if the sealing fails, the problems of material leakage, dust overflow, environmental pollution, or external air invasion affecting the process temperature in the cylinder, product quality, etc. can occur. The existing rotary cylinder feeding sealing device has the defects that part of contact type sealing is easy to cause too fast abrasion of sealing elements due to axial movement and radial runout during the operation of the rotary cylinder, frequent maintenance and replacement are needed, production cost and downtime are increased, labyrinth type sealing has high requirements on manufacturing and installation precision, dust and gas leakage are difficult to be completely blocked by means of labyrinth throttling, a single sealing structure is difficult to adapt to complex working conditions, and sealing reliability and durability are poor. Therefore, a rotary cylinder feeding sealing device with a more reasonable structure, good sealing effect, strong suitability and convenient maintenance is needed. Disclosure of utility model The utility model aims to provide a rotary cylinder feeding sealing device, which solves the problems that the traditional rotary cylinder feeding sealing device is easy to have poor sealing effect and is inconvenient to maintain. In order to solve the technical problems, the utility model adopts the following technical scheme: A rotary cylinder feeding sealing device comprises a cylinder body, wherein a flange is fixedly arranged at the end part of the cylinder body, a friction ring is arranged at the position of a cylinder body feeding hole, the friction ring is sleeved on the outer wall of the cylinder body and rotates along with the cylinder body, a gap is arranged between the bottom of the friction ring and the outer wall of the cylinder body, a packing sealing part is arranged in the gap, a first sealing mechanism is arranged on the left side of the friction ring, one end of the first sealing mechanism, which is far away from the friction ring, is connected with the flange through a plurality of axial supplementing mechanisms, the other end of the first sealing mechanism is in dynamic fit connection with the friction ring, a second sealing mechanism is arranged on the right side of the friction ring, one end of the second sealing mechanism, which is close to the friction ring, is connected with the friction ring, the bottom of the second sealing mechanism is in contact connection with the outer wall of the cylinder body, a sliding support assembly is arranged at the bottom of the device, and the top of the sliding support assembly is connected with the first sealing mechanism. The further technical scheme is that the first sealing mechanism comprises a mounting seat and a first sealing ring, the mounting seat and the first sealing ring are sleeved on the outer wall of the cylinder, the first sealing ring is in dynamic fit connection with the friction ring, the mounting seat is fixedly connected with the first sealing ring, and one side, away from the first sealing ring, of the mounting seat is fixedly connected with the flange through a plurality of axial supplementing mechanisms. The second sealing mechanism comprises a second sealing ring and a sealing pressing plate, wherein the bottom of the second sealing ring is connected with the outer wall of the cylinder in a fitting mode, one side of the second sealing ring is connected with the friction ring, and the other side of the second sealing ring is connected with the sealing pressing plate. The axial supplementing mechanisms are uniformly distributed on the mounting seat along the circumferential direction, each axial supplementing mechanism comprises a screw rod and a compression spring, one end of each screw rod is fixedly connected with the mounting seat, the other end of each screw rod is fixedly connected with the flange, each compression spring is sleeved on each screw rod, each compression spring is located between each mounting seat and each flange, one end of each compression spring is connected with each flange, and the other end of each compression spring is connected with a nut sleeved on each screw rod. The sliding support assembly comprises a support seat and a riding wheel, wherein the riding wheel is fixedly arranged at the bottom of the support seat, and the top of the support seat is f