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CN-224223795-U - Adjustable embedded bearing disassembling puller device

CN224223795UCN 224223795 UCN224223795 UCN 224223795UCN-224223795-U

Abstract

An adjustable embedded bearing disassembling puller device belongs to the technical field of embedded bearing disassembling. The device consists of a tray stem, a pull rod, a support rod, a track tray, a support base, a jacking device, a bolt, a claw lock and a clamping jaw. When the puller device is used for carrying out the disassembly work of the lining bearing, the supporting length of the supporting rods below the track disc can be adjusted by utilizing bolts according to the size, the structure or special conditions of the disassembly equipment, so that the three supporting rods can be in good and stable contact with the surface of the equipment through the supporting base. When two clamping jaws pass the centre bore of embedded bearing, the rotary disk pole makes the pull rod move downwards, and when the top ware of "trapezoidal platform" structure of pull rod lower part contacted clamping jaw inwards crooked pincers back, can outwards jack-up two clamping jaws, makes the bottom of embedded bearing can be fully grasped to the jaw of two clamping jaws, and finally upwards lifts the pull rod through the rotary disk futilely, and then pulls out the bearing from embedded structure to improve the stability and the efficiency of dismantling embedded bearing.

Inventors

  • LIU HAIQIANG
  • Hua Yuebo
  • ZHANG HU
  • LIU RONGZE
  • ZHANG RUNJIE

Assignees

  • 天津大沽化工投资发展有限公司

Dates

Publication Date
20260512
Application Date
20250606

Claims (7)

  1. 1. An adjustable embedded bearing disassembling puller device is characterized by comprising a tray stem (1), a pull rod (2), a supporting rod (3), a track tray (4), a lifter (5), a supporting base (6), bolts (7), claw locks (8) and clamping claws (9), The track disc (4) is of a cylindrical structure, a circular groove is formed in the upper surface and the lower surface of the track disc, an annular edge structure is formed between the outer contour of the circular groove and the outer contour of the track disc (4), an internal thread through hole is formed in the center of the circular groove, three sections of arc-shaped tracks with the same structure and size are symmetrically arranged around the internal thread through hole near the outer contour of the circular groove, rectangular tracks facing the internal thread through hole are arranged in the symmetrical center of each arc-shaped track, each arc-shaped track is communicated with the corresponding rectangular track, the widths of the arc-shaped tracks are the same, and the front ends of the three rectangular tracks are equidistant from the internal thread through hole; The disc stem (1) and the pull rod (2) form a T-shaped structure, the top of the T-shaped structure is the disc stem (1), the bottom of the T-shaped structure is the pull rod (2) with external threads, the pull rod (2) passes through the internal thread through hole and is arranged on the track disc (4), the top device (5) is a trapezoid table structure with narrow top and wide bottom, and the top device (5) is arranged at the bottom of the pull rod (2); The claw lock (8) is of an annular structure with two symmetrical rectangular sections at the outer connecting edge, and the claw lock (8) is arranged on the pull rod (2) above the ejector (5); The two clamping jaws (9) are of an integrated structure with a strip-shaped top and a bottom clamp with inwards bent jaw outwards, a through groove is formed in the top end of the strip-shaped structure, circular through holes are formed in the groove walls on two sides of the groove, and the strip-shaped structure of the clamping jaws (9) is arranged on a rectangular bar by using cylindrical pins; The three support rods (3) are of cylindrical structures, the outer diameters of the support rods are the same as the widths of the arc-shaped tracks and the rectangular tracks in the track disc (4), the support rods (3) move in the arc-shaped tracks and the rectangular tracks, the top of each support rod (3) is provided with a stop block structure which is integrated with the support rods (3) and has the outer diameter larger than that of a support rod (3) body, the bottom of each support rod (3) is provided with a support base (6) integrated with the support rods (3), the support bases (6) are parallel to the upper surface and the lower surface, the side edges of the support bases are of arc-shaped round table structures, the portion, penetrating through the track of the track disc (4), of each support rod (3) is of an external thread structure, the bolts (7) are installed on the support rods (3) below the track disc (4), and the outer diameters of the bolts (7) are larger than the track width of the track disc (4).
  2. 2. An adjustable embedded bearing removal puller as set forth in claim 1, characterized in that an internal thread is provided in the middle of the "trapezoidal table" structure to mount the puller (5) to the bottom of the pull rod (2).
  3. 3. An adjustable in-line bearing extractor device as claimed in claim 1, characterized in that an internal thread is provided on the inside of the "ring" structure to mount the claw lock (8) on the pull rod (2) above the ejector (5).
  4. 4. The adjustable embedded bearing disassembling puller device of claim 1, wherein the width of the groove is slightly larger than the width of a rectangular section in the claw lock (8), the diameter of the circular through hole is consistent with the inner diameter of a through hole in the rectangular section, and the strip-shaped structure of the clamping jaw (9) is installed on the rectangular section by using a cylindrical pin.
  5. 5. An adjustable embedded bearing dismounting puller device as set forth in claim 1, wherein an embedded threaded mounting hole is formed in the center of the bottom of the supporting rod (3), and a threaded rod matched with the size of the threaded mounting hole at the bottom of the supporting rod (3) is welded in the center of the upper surface of the supporting base (6), so that the supporting base (6) and the supporting rod (3) are assembled.
  6. 6. An adjustable in-line bearing removal puller as set forth in claim 1 wherein a non-slip mat is mounted on the lower surface of the support base (6).
  7. 7. The adjustable embedded bearing disassembling puller device of claim 1, wherein the tray stem (1), the pull rod (2), the support rod (3), the track tray (4), the ejector (5), the support base (6), the bolt (7), the claw lock (8) and the clamping jaw (9) are made of cast iron.

Description

Adjustable embedded bearing disassembling puller device Technical Field The utility model belongs to the technical field of disassembly of embedded bearings, and particularly relates to an adjustable embedded bearing disassembly puller device. Background Due to the continuous development and improvement of the mechanical manufacturing level in the current age, more and more high-precision equipment adopts embedded bearings. The common method for replacing the abrasion of the bearing is to use methods such as hot disassembly, knocking and pushing, so that the disassembly is difficult and laborious, and the damage to parts such as a main shaft is easier. The puller belongs to a common disassembling tool in the field of mechanical equipment maintenance, the puller is a tool which is commonly used for disassembling a bearing and separating the bearing from a shaft, the puller can be distinguished according to the number of claws, such as a two-claw puller and a three-claw puller, the more and more stable the number of the claws is, the more and more stable the puller is used in the disassembling process of the puller, the claw hook is usually used for grabbing the bearing by rotating a disc 1 in fig. 1, and the rotating lifting is carried out by adopting a thread structure. In the disassembly process of the embedded bearing, as the embedded bearing is embedded in the equipment, compared with a common exposed bearing, the embedded bearing cannot be disassembled by using a pull-out horse of a common outer wrapping clamping jaw, so that the disassembly is difficult. Some of the puller at present have smaller application range, and if the puller is used for disassembly, a better supporting point or unstable support is not easy to find sometimes because of different outline structures of the equipment. Therefore, in order to further optimize the disassembly of the embedded bearing and to improve the stability during the disassembly, it is desirable to provide an embedded bearing disassembly device. Disclosure of utility model In order to solve the problem of difficult disassembly of the embedded bearing and improve the stability of using a disassembly tool of the embedded bearing, the utility model aims to provide a more stable and adjustable embedded bearing disassembly puller device. The track disc is of a cylindrical structure, circular grooves are formed in the upper surface and the lower surface of the track disc inwards, and annular edge structures are formed between the outer contours of the circular grooves and the outer contours of the track disc. The center of the circular groove is provided with an internal thread through hole, three sections of arc-shaped tracks with the same structure and size are symmetrically arranged around the internal thread through hole near the outer contour of the circular groove, the symmetrical center of each arc-shaped track is provided with a rectangular track facing the internal thread through hole, each arc-shaped track is communicated with the corresponding rectangular track and has the same width, the front ends of the three rectangular tracks are equidistant from the internal thread through hole, and the three sections of arc-shaped tracks and the three rectangular tracks form a track structure of the whole disc surface. The disc stem and the pull rod form a T-shaped structure, the top of the T-shaped structure is the disc stem, the bottom of the T-shaped structure is the pull rod with external threads, the pull rod passes through the internal thread through hole and is arranged on the track disc, and the rotary disc stem can enable the pull rod to move up and down relative to the track disc; the top device is of a trapezoid table structure with a narrow top and a wide bottom, and internal threads are arranged in the middle of the trapezoid table structure, so that the top device is arranged at the bottom of the pull rod. The claw lock is of an annular structure with two symmetrical rectangular sections at the outer connecting edge, internal threads are arranged on the inner side of the annular structure, so that the claw lock is mounted on a pull rod above the ejector, the rectangular sections and the annular structure have the same height, and penetrating round holes parallel to the surface of the annular structure are formed in the rectangular sections. The clamping jaw is two, is that the top is rectangular shape and the outside integral structure of bottom pincers back of body incurvate jaw, is provided with the recess that runs through on the top of rectangular shape structure, is provided with circular through-hole on the both sides cell wall of recess, and the width of recess slightly is greater than the width of rectangle buret in the claw lock, and the diameter of circular through-hole is unanimous with the internal diameter of running through the round hole in the rectangle buret, utilizes the cylindric lock to install the rectangular shape structure of clamp