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CN-224201058-U - Automobile engine cooling water pump adjusting device

CN224201058UCN 224201058 UCN224201058 UCN 224201058UCN-224201058-U

Abstract

The utility model relates to the technical field of engine cooling water pumps and discloses an automobile engine cooling water pump adjusting device, which comprises a cooling water pump body, wherein one end of an inner rotating shaft of the cooling water pump body is fixedly connected with a belt pulley, a concave cavity of the belt pulley is slidably connected with a movable frame, one side of the movable frame is provided with two symmetrical penetrating avoidance holes, one side inner wall of the concave cavity of the belt pulley is fixedly connected with studs matched with the two avoidance holes, nuts are connected onto the two studs in a threaded manner, one side of each nut is tightly contacted with one side inner wall of the movable frame, and a plurality of gaskets with the same number are arranged on the circumference outer wall of each stud and between the movable frame and one side inner wall of the concave cavity of the belt pulley. The gap between the movable frame and the belt pulley can be filled through the cooperation of the middle backing ring and the end backing ring, so that abrasion caused by friction with the edge of the belt pulley in the working process of the belt is prevented.

Inventors

  • YANG XIAOHU
  • YANG HUCHENG
  • TIAN ANQUAN
  • FANG HAIWEN

Assignees

  • 江苏嘉杨机电配件有限公司

Dates

Publication Date
20260505
Application Date
20250620

Claims (6)

  1. 1. The automobile engine cooling water pump adjusting device comprises a cooling water pump body (1), one end of an inner rotating shaft of the cooling water pump body (1) is fixedly connected with a belt pulley (2), and is characterized in that a movable frame (3) is connected in a sliding manner in a concave cavity of the belt pulley (2), two symmetrical through avoidance holes (10) are formed in one side of the movable frame (3), studs (4) matched with the two avoidance holes (10) are fixedly connected to one side inner wall of the concave cavity of the belt pulley (2), nuts (5) are connected to the two studs (4) in a threaded manner, one side of each nut (5) is tightly contacted with one side inner wall of the movable frame (3), a plurality of gaskets (6) with the same quantity are arranged on the circumferential outer wall of each stud (4) and between the movable frame (3) and the concave cavity side inner wall of the belt pulley (2), a plurality of middle backing rings (7) with one less gasket (6) are arranged between the circumferential side wall of the belt pulley (2), and the backing rings (7) close to one side of the movable frame (3), and a plurality of backing rings (8) are arranged between the backing rings (7) and one positioning assembly; The positioning assembly comprises at least four positioning grooves (11) which are formed in one side of a middle backing ring (7) in an annular array, and positioning blocks (9) which are matched with the positioning grooves (11) in a one-to-one correspondence mode are fixedly connected to the other side of the middle backing ring (7) and two sides of an end backing ring (8).
  2. 2. The automobile engine cooling water pump adjusting device according to claim 1, wherein one side of the circular pipe wall of the belt pulley (2) is also provided with positioning grooves (11) the number of which is consistent with that of the same middle backing ring (7), the positioning grooves (11) on one side of the circular pipe wall of the belt pulley (2) are in one-to-one correspondence with the positioning blocks (9) on the middle backing ring (7) close to one side of the positioning grooves, and one side of the movable frame (3) is also provided with the positioning grooves (11) which are matched with the positioning blocks (9) on one side of the end backing ring (8).
  3. 3. The cooling water pump adjusting device for the automobile engine according to claim 2, wherein the positioning blocks (9) fixedly connected to two sides of the end backing ring (8) are in one-to-one correspondence with the positions of the positioning blocks (9) on the middle backing ring (7) close to the end backing ring.
  4. 4. The device for adjusting the cooling water pump of the automobile engine according to claim 1, wherein the thicknesses of the middle backing ring (7) and the end backing ring (8) are the same as those of the gasket (6), the thickness of the positioning block (9) is the same as that of the positioning groove (11), and the widths of the middle backing ring (7) and the end backing ring (8) are the same as those of the circular pipe wall of the belt pulley (2).
  5. 5. The cooling water pump adjusting device for the automobile engine, as set forth in claim 4, characterized in that the circumferential outer wall of the middle backing ring (7), the circumferential outer wall of the end backing ring (8) and the circumferential outer wall of the belt pulley (2) are coated with a coating for reducing friction resistance, and the coating is a graphite coating.
  6. 6. A cooling water pump adjusting device for an automobile engine according to claim 1, wherein the number of nuts (5) on the same stud (4) is at least two.

Description

Automobile engine cooling water pump adjusting device Technical Field The utility model relates to the technical field of engine cooling water pumps, in particular to an adjusting device of an automobile engine cooling water pump. Background The cooling system of the automobile engine maintains the working temperature of the engine through circulating cooling liquid, a core component of the cooling water pump is usually driven by a crankshaft through a belt pulley, the traditional water pump adopts a fixed displacement design, and the rotating speed of the traditional water pump is in linear relation with the rotating speed of the engine. Through retrieving, the Chinese patent with the bulletin number of CN220769801U discloses an automobile engine cooling water pump adjusting device, the device realizes flexible adjustment of the width in a belt pulley through the additional installation of a stud upper end gasket in the belt pulley, thereby the belt pulley can be suitable for connection of belts with various sizes, the application range in use is improved, but a gap exists between a movable frame and the belt pulley after the gasket is additionally installed, and the inner wall of the belt pulley can be contacted with the edge part of the belt pulley in the working process of the belt, so that the inner wall of the belt is quickly worn, and the service life of the belt is shortened. Disclosure of utility model In order to overcome the above-mentioned drawbacks of the prior art, the present utility model provides an adjusting device for a cooling water pump of an automobile engine, so as to solve the above-mentioned problems in the prior art. The utility model provides a technical scheme that an automobile engine cooling water pump adjusting device comprises a cooling water pump body, wherein one end of an inner rotating shaft of the cooling water pump body is fixedly connected with a belt pulley, a movable frame is connected in a sliding manner in a concave cavity of the belt pulley, two symmetrical through position avoidance holes are formed in one side of the movable frame, studs matched with the two position avoidance holes are fixedly connected to the inner wall of one side of the concave cavity of the belt pulley, nuts are connected to the upper parts of the two studs in a threaded manner, one side of each nut is tightly contacted with the inner wall of one side of the movable frame, a plurality of gaskets with the same number are arranged on the circumferential outer wall of each stud and between the movable frame and the inner wall of one side of the concave cavity of the belt pulley, an intermediate backing ring with one gasket with the same group is arranged between the circumferential side wall of the belt pulley and the movable frame, an end backing ring is arranged between the intermediate backing ring and the movable frame, and a positioning assembly for positioning the intermediate backing ring is arranged between the intermediate backing rings. As a further scheme of the utility model, the positioning assembly comprises at least four positioning grooves which are arranged on one side of the middle backing ring and are in annular arrays, and positioning blocks which are matched with the positioning grooves one by one are fixedly connected to the other side of the middle backing ring and the two sides of the end backing ring. As a further scheme of the utility model, one side of the round tube wall of the belt pulley is also provided with positioning grooves with the same number as that of the same middle backing ring, a plurality of positioning grooves on one side of the round tube wall of the belt pulley are matched with positioning blocks on the middle backing ring close to one side of the round tube wall of the belt pulley in a one-to-one correspondence manner, and one side of the movable frame is also provided with positioning grooves matched with a plurality of positioning blocks on one side of the end backing ring. As a further scheme of the utility model, the positioning blocks fixedly connected with the two sides of the end backing ring correspond to the positions of the positioning blocks on the middle backing ring which are close to the positioning blocks one by one. As a further scheme of the utility model, the thicknesses of the middle backing ring, the end backing ring and the gasket are the same, the thickness of the positioning block is the same as the depth of the positioning groove, and the widths of the middle backing ring and the end backing ring are the same as the thickness of the circular tube wall of the belt pulley. As a further aspect of the present utility model, the circumferential outer wall of the intermediate backing ring, the circumferential outer wall of the end backing ring, and the circumferential outer wall of the pulley are coated with a friction resistance reducing coating, and the coating is preferably a graphite coating. As a further aspect of the presen