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CN-224214566-U - Split pulley

CN224214566UCN 224214566 UCN224214566 UCN 224214566UCN-224214566-U

Abstract

The utility model relates to a split pulley. The novel transmission device solves the technical problems that an existing transmission effect is poor, the transmission effect is unstable in the use process, the transmission effect is difficult to replace, and the like. Including the pulley body that has the mounting hole, mounting hole one end is equipped with the wheel body sealing portion that radially inwards extends, and the mounting hole other end is equipped with the opening that links to each other with the mounting hole, and the inboard activity of mounting hole is equipped with the pulley bearing, and pulley body is close to opening one end and is equipped with and is hollow sealed lid, and sealed lid one end is through opening axial run through pulley bearing to wheel body sealing portion circumference inboard, is equipped with the rolling limiting component corresponding with pulley bearing between sealed lid and the wheel body sealing portion. The pulley has the advantages that the pulley bearing is arranged in the pulley body and fixed through the sealing cover body, so that the pulley bearing can be prevented from being separated from the pulley body, and meanwhile, the sealing cover body and the pulley body adopt a split structure, so that the pulley body is convenient to replace when damaged, and the working efficiency is improved.

Inventors

  • LI XIAOTING

Assignees

  • 宁波市佑兴机械有限公司

Dates

Publication Date
20260508
Application Date
20250710

Claims (10)

  1. 1. The utility model provides a split type pulley, includes pulley body (1) that has mounting hole (11), its characterized in that, mounting hole (11) one end be equipped with radial inward extension's wheel body sealing (2), the mounting hole (11) other end be equipped with opening (12) that link to each other with mounting hole (11), mounting hole (11) inboard activity be equipped with pulley bearing (3), pulley body (1) be close to opening (12) one end and be equipped with and be hollow sealed lid (4), sealed lid (4) one end pass through opening (12) axial run through pulley bearing (3) to wheel body sealing (2) circumference inboard, just sealed lid (4) and wheel body sealing (2) between be equipped with pulley bearing (3) corresponding roll spacing subassembly (5).
  2. 2. A split pulley according to claim 1, wherein one end of the sealing cover (4) is provided with a cover sealing portion (41), one end of the cover sealing portion (41) is provided with an axially extending cover extending portion (42), and the sum of the length of the cover extending portion (42) and the thickness of the cover sealing portion (41) is equal to the sum of the depth of the mounting hole (11) and the thickness of the wheel body sealing portion (2).
  3. 3. A split pulley according to claim 2, wherein the circumferential inner side of the pulley body sealing part (2) is provided with a round hole (21), the round hole (21) is communicated with the mounting hole (11), and one end of the cover extending part (42) far away from the cover sealing part (41) axially penetrates through the pulley bearing (3) into the round hole (21).
  4. 4. A split pulley according to claim 3, wherein the end face of the cover sealing portion (41) far from the cover extending portion (42) is flush with the end face of the pulley body (1), and the end of the cover extending portion (42) far from the cover sealing portion (41) does not protrude from the end face of the pulley body sealing portion (2).
  5. 5. A split pulley according to claim 2, wherein the inner sides of the two ends of the cover extension part (42) are respectively provided with an arc part (43), a horizontal part (44) is arranged between the arc parts (43), the diameter of the cover sealing part (41) is equal to the diameter of the mounting hole (11), and the diameter of the cover extension part (42) is equal to the diameter of the round hole (21).
  6. 6. A split pulley according to claim 2, 3, 4 or 5, wherein a bearing groove (6) is formed between the cover sealing part (41), the cover extending part (42), the pulley body sealing part (2) and the pulley body (1), the pulley bearing (3) is arranged in the bearing groove (6), the inner side of the pulley bearing (3) is in contact with the cover extending part (42), and the outer side of the pulley bearing (3) is in contact with the pulley body (1).
  7. 7. The split pulley according to claim 6, wherein the pulley bearing (3) is provided with an outer ring portion (31) on the outer side in the circumferential direction, the pulley bearing (3) is provided with an inner ring portion (32) on the inner side in the circumferential direction, and a plurality of rolling elements (33) are arranged between the outer ring portion (31) and the inner ring portion (32) in sequence.
  8. 8. A split pulley according to claim 7, wherein the outer ring portion (31) abuts against the pulley body (1) at a side away from the inner ring portion (32), and the inner ring portion (32) abuts against the cover extension portion (42) at a side away from the outer ring portion (31).
  9. 9. The split pulley according to claim 7, wherein the rolling limiting assembly (5) comprises a first limiting boss (51) arranged on the inner side of one end, close to the cover extension portion (42), of the cover sealing portion (41), a second limiting boss (52) is arranged on the outer side, close to the pulley body (1), of the pulley body sealing portion (2), one end, far away from the pulley body sealing portion (2), of the inner ring portion (32) is in contact with the first limiting boss (51), and one end, far away from the cover sealing portion (41), of the outer ring portion (31) is in contact with the second limiting boss (52).
  10. 10. The split pulley according to claim 1, wherein the pulley body (1) is provided with a pulley groove (13) on the outer side in the circumferential direction, two ends of the pulley groove (13) are respectively provided with a pulley convex part (14), the bottom of the pulley groove (13) is in a semicircular structure, and one side, far away from the pulley groove (13), of the pulley convex part (14) is provided with an inclined part (15).

Description

Split pulley Technical Field The utility model belongs to the technical field of pulley equipment, and particularly relates to a split pulley. Background Pulley devices are a major component of many devices and are widely used in life and industrial operations. The pulley is used for lifting heavy objects and can save labor, and the pulley is matched with a rope when in use, so that the pulley and a steel wire rope can stably run under various working conditions, and a rope groove is usually formed in the pulley. The existing pulley is poor in transmission effect in actual use due to the defect of structural design, working efficiency is affected, meanwhile, the pulley is worn out under long-time use, unstable in use and difficult to replace. Disclosure of Invention The utility model aims to solve the problems and provide a split pulley. The split pulley comprises a pulley body with a mounting hole, wherein one end of the mounting hole is provided with a pulley body sealing part extending radially inwards, the other end of the mounting hole is provided with an opening connected with the mounting hole, the inner side of the mounting hole is movably provided with a pulley bearing, one end, close to the opening, of the pulley body is provided with a hollow sealing cover body, one end of the sealing cover body axially penetrates through the pulley bearing to the circumferential inner side of the pulley body sealing part through the opening, and a rolling limiting assembly corresponding to the pulley bearing is arranged between the sealing cover body and the pulley body sealing part. The sealing cover body and the pulley body can rotate independently through the rolling limiting assembly, so that the transmissibility and the stability are improved, and the pulley bearing is arranged in the pulley body and fixed through the sealing cover body, so that the firmness of the pulley bearing can be ensured. In the split pulley, one end of the sealing cover body is provided with the cover body sealing part, one end of the cover body sealing part is provided with the cover body extending part extending axially, and the sum of the length of the cover body extending part and the thickness of the cover body sealing part is equal to the sum of the depth of the mounting hole and the thickness of the wheel body sealing part. The cover body extension part is used for fixing the pulley bearing, so that the pulley shaft is prevented from shaking during running, and the cover body sealing part is used for sealing the mounting hole, so that the pulley bearing is prevented from being separated from the pulley body. In the split pulley, a round hole is formed in the circumferential inner side of the pulley body sealing part, the round hole is communicated with the mounting hole, and one end, far away from the cover body sealing part, of the cover body extending part axially penetrates through the pulley bearing to the inside of the round hole. Thus, the overall tightness of the pulley can be ensured, and the overall operation stability is improved. In the split pulley, one end face of the cover body sealing part, which is far away from the cover body extending part, is flush with one end face of the pulley body, and one end of the cover body extending part, which is far away from the cover body sealing part, does not protrude out of the end face of the pulley body sealing part. In the split pulley, the inner sides of the two ends of the extending part of the cover body are respectively provided with the arc-shaped parts, the horizontal parts are arranged between the arc-shaped parts, the diameter of the sealing part of the cover body is equal to the diameter of the mounting hole, and the diameter of the extending part of the cover body is equal to the diameter of the round hole. In the split pulley, a bearing groove is formed among the cover body sealing part, the cover body extending part, the pulley body sealing part and the pulley body, the pulley bearing is arranged in the bearing groove, the inner side of the pulley bearing is contacted with the cover body extending part, and the outer side of the pulley bearing is contacted with the pulley body. The pulley body and the sealing cover body are not affected when the pulley runs, so that the transmission performance is improved. In the split pulley, the outer ring part is arranged on the circumferential outer side of the pulley bearing, the inner ring part is arranged on the circumferential inner side of the pulley bearing, and a plurality of rolling bodies which are sequentially arranged are arranged between the outer ring part and the inner ring part. In the split pulley, one side of the outer ring part far away from the inner ring part is abutted against the pulley body, and one side of the inner ring part far away from the outer ring part is abutted against the cover body extension part. In the split pulley, the rolling limiting assembly comprises a first limiting boss arranged