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CN-224199057-U - Portable protective lifting shaft device

CN224199057UCN 224199057 UCN224199057 UCN 224199057UCN-224199057-U

Abstract

The utility model discloses a portable protective lifting shaft device which comprises a main body support, a rope belt support plate, a flexible rope belt and a rope belt adjusting assembly, wherein the main body support comprises vertical support frames which are arranged on two sides of a shaft to be lifted in a crossing mode, transverse support plates which are connected to the top ends of the vertical support frames on two sides, and middle support plates which extend inwards from the inner sides of the vertical support frames on two sides at the same height horizontally, the rope belt support plates are arranged above the middle support plates on two sides in a crossing mode and can move up and down in the vertical direction through lifting mechanisms, a buffer mechanism is arranged between the rope belt support plates and the transverse support plates, the flexible rope belt is used for encircling the shaft to be lifted, the upper ends of the flexible rope belt are connected with the rope belt support plates through the rope belt adjusting assembly, and the rope belt adjusting assembly is used for ensuring that the shaft to be lifted is located on a lifting vertical line. The utility model solves the problem of protective allocation of the journal and the bearing bush, improves allocation precision of the shaft lifting operation, protects the bearing face of the bearing bush to a certain extent in the descending process, and ensures the safety, convenience and high efficiency of the whole operation.

Inventors

  • Xin Gengjia
  • LING JINMING
  • Dong Wangzi

Assignees

  • 北京高能时代环境技术股份有限公司
  • 重庆耀辉环保有限公司

Dates

Publication Date
20260505
Application Date
20250529

Claims (10)

  1. 1. A portable protective lift shaft device, comprising: The main body support comprises vertical support frames which are transversely arranged at two sides of the shaft to be lifted, transverse support plates which are connected to the top ends of the vertical support frames at two sides, and middle support plates which extend inwards from the inner sides of the vertical support frames at two sides at the same height horizontally; The rope belt supporting plates are transversely overlapped above the middle supporting plates at two sides and can vertically lift up and down through the lifting mechanism, and a buffer mechanism is arranged between the rope belt supporting plates and the transverse supporting plates; The flexible lifting shaft rope belt is used for encircling the lifting shaft, the upper end of the flexible lifting shaft rope belt is connected with the rope belt supporting plate through a rope belt aligning assembly, and the rope belt aligning assembly is used for ensuring that the lifting shaft is located on a lifting vertical line.
  2. 2. The portable protective lift shaft device of claim 1, wherein the lifting mechanism comprises a lifting screw, an upper lock nut, an upper adjustment nut, and a lower lock nut; the lifting screw rod is sleeved in the transverse supporting plate in a lifting manner, the lifting screw rod is sequentially provided with the upper adjusting nut and the upper locking nut corresponding to the upper part of the transverse supporting plate, the lower end of the lifting screw rod penetrates through the strap supporting plate and then is fixedly provided with the lower locking nut, and the lifting screw rod can be driven to move up and down by rotating the upper adjusting nut.
  3. 3. The portable protective shaft lifting device according to claim 2, wherein a dial which is annularly distributed is arranged on the upper surface of the transverse supporting plate corresponding to the outer side of the upper adjusting nut, scale marks of 0-360 degrees are marked on the dial, and an indication arrow matched with the dial is arranged on the outer circumference of the upper adjusting nut.
  4. 4. The portable protective lift shaft device of claim 2, wherein the pitch of the lift screw is 1-1.5mm and the nominal diameter of the lift screw is M12-M24.
  5. 5. The portable protective lift shaft device of claim 2, wherein the transverse support plate is provided with a self-lubricating guide sleeve corresponding to the passing direction of the lift screw, and the self-lubricating guide sleeve is in clearance fit with the lift screw by using H10.
  6. 6. The portable protective lift shaft device of claim 2, wherein the outer circumferential side of the upper adjustment nut is provided with at least one horizontal operating hole for inserting a withdrawal pin to rotate the upper adjustment nut.
  7. 7. The portable protective lift shaft device of claim 2, wherein the buffer mechanism is a buffer spring disposed between the strap support plate and the transverse support plate and sleeved outside the lift screw.
  8. 8. The portable protective lift shaft assembly of claim 1 wherein the distance between the intermediate support plate and the transverse support plate on both sides is 50-80mm.
  9. 9. The portable protective lift shaft assembly of claim 8 wherein the strap support plate has a lift range of 0-10mm.
  10. 10. The portable protective lifting shaft device according to claim 1, wherein the strap aligning assembly comprises aligning nuts, external thread sections are arranged at two ends of the flexible lifting shaft strap, the external thread sections at two ends of the flexible lifting shaft strap penetrate through the strap supporting plate respectively, and the two aligning nuts are screwed on the corresponding external thread sections respectively.

Description

Portable protective lifting shaft device Technical Field The utility model relates to the technical field of spindle lifting, in particular to a portable protective spindle lifting device. Background In the main shaft lifting and bearing bush adjusting operation of medium and large-sized precision equipment, the main shaft lifting usually depends on tools such as a chain block, a jack, an electric hoist and the like, however, the tools have obvious defects in practical application and have a plurality of adverse effects on related operations, firstly, most of the tools used for lifting the shaft have low adjusting precision and overlarge lifting amplitude, the journal and the bearing bush are extremely easy to damage, secondly, the tools are limited by field space, part of the tools are difficult to normally use, potential safety hazards exist in operation, thirdly, most of the existing tools for lifting the shaft are roughly adjusted, the radial stress of the journal and the protection measure of the bearing bush bearing surface are lacked, the deformation risk of the journal exists in lifting, the installation operation precision cannot be ensured, and the high-precision installation and maintenance requirements of modern precision equipment are difficult to meet. Therefore, there is a need to design a novel portable protective lifting device to solve the above technical problems. Disclosure of utility model Aiming at the defects existing in the prior art, the utility model provides a portable protective lifting shaft device. The utility model discloses a portable protective lifting shaft device, which comprises: The main body support comprises vertical support frames which are transversely arranged at two sides of the shaft to be lifted, transverse support plates which are connected to the top ends of the vertical support frames at two sides, and middle support plates which extend inwards from the inner sides of the vertical support frames at two sides at the same height horizontally; The rope belt supporting plates are transversely overlapped above the middle supporting plates at two sides and can vertically lift up and down through the lifting mechanism, and a buffer mechanism is arranged between the rope belt supporting plates and the transverse supporting plates; The flexible lifting shaft rope belt is used for encircling the lifting shaft, the upper end of the flexible lifting shaft rope belt is connected with the rope belt supporting plate through a rope belt aligning assembly, and the rope belt aligning assembly is used for ensuring that the lifting shaft is located on a lifting vertical line. As a further improvement of the utility model, the lifting mechanism comprises a lifting screw, an upper locking nut, an upper adjusting nut and a lower locking nut; the lifting screw rod is sleeved in the transverse supporting plate in a lifting manner, the lifting screw rod is sequentially provided with the upper adjusting nut and the upper locking nut corresponding to the upper part of the transverse supporting plate, the lower end of the lifting screw rod penetrates through the strap supporting plate and then is fixedly provided with the lower locking nut, and the lifting screw rod can be driven to move up and down by rotating the upper adjusting nut. As a further improvement of the utility model, the upper surface of the transverse supporting plate is provided with a circular scale disc corresponding to the outer side of the upper adjusting nut, the scale disc is marked with scale marks of 0-360 degrees, and the outer circumference of the upper adjusting nut is provided with an indication arrow matched with the scale disc. As a further improvement of the utility model, the pitch of the lifting screw is 1-1.5mm, and the nominal diameter of the lifting screw is M12-M24. As a further improvement of the utility model, the transverse supporting plate is provided with a self-lubricating guide sleeve corresponding to the passing direction of the lifting screw, and the self-lubricating guide sleeve and the lifting screw are in H10 clearance fit. As a further improvement of the utility model, at least one horizontal operation hole is arranged on the outer circumferential side surface of the upper adjusting nut, and the operation hole is used for inserting and pulling out a needle to drive the upper adjusting nut to rotate. As a further improvement of the utility model, the buffer mechanism is a buffer spring which is arranged between the strap supporting plate and the transverse supporting plate and sleeved outside the lifting screw. As a further development of the utility model, the distance between the intermediate support plate and the transverse support plate on both sides is 50-80mm. As a further improvement of the utility model, the lifting range of the strap supporting plate is 0-10mm. The cable belt alignment assembly comprises alignment nuts, wherein external thread sections are arranged at two ends of