CN-116022641-B - Adjustable grinding wheel lifting appliance

CN116022641BCN 116022641 BCN116022641 BCN 116022641BCN-116022641-B

Abstract

The invention discloses an adjustable grinding wheel lifting appliance, which belongs to the field of lifting and comprises lifting rings, guide posts, a pull rod, a retainer, clamping claws and a supporting beam, wherein the lifting rings are fixedly connected with the upper ends of the guide posts, the supporting beam comprises a cross beam and a vertical rod, the vertical rod is provided with a cavity matched with the lower ends of the guide posts, the lower ends of the guide posts are inserted into the cavity of the vertical rod, two pin holes are formed in the two ends of the cross beam, the pull rod and the retainer are symmetrically arranged, the upper ends of the pull rod are connected with a guide pin shaft, the retainer comprises a transverse plate, two inverted L-shaped vertical plates are fixedly connected to the inner sides of the middle parts of the transverse plate, the vertical edges of the inverted L-shaped vertical plates are connected with a transverse beam pin shaft, the upper transverse edges of the inverted L-shaped vertical plates are connected with the lower ends of the pull rod in a pin shaft mode, the four clamping claws are respectively connected to the two ends of the transverse plates of the retainer in a rotating mode, and a fastening mechanism is used for realizing position locking. Compared with the prior art, the device has the characteristics of safety and reliability.

Inventors

LONG YINGRUI
LI YUANYUAN
HE ZHAOPENG
JIANG JIANFU
YU ZHENBO
FAN XIAOJUN

Assignees

日照钢铁控股集团有限公司

Dates

Publication Date: 20260508
Application Date: 20230228

Claims (9)

1. An adjustable grinding wheel lifting appliance is characterized by comprising a lifting ring, a guide post, a pull rod, a retainer, a claw and a supporting beam; the hanging ring is fixedly connected with the upper end of the guide post; the support beam comprises a cross beam and a vertical rod, wherein the vertical rod is provided with a cavity matched with the lower end of the guide post, and the lower end of the guide post is inserted into the cavity of the vertical rod; the two pull rods and the two retainers are symmetrically arranged, and the upper ends of the pull rods are connected with the guide pins in an axial manner; the retainer comprises a transverse plate, wherein two inverted L-shaped vertical plates are fixedly connected to the inner side of the middle part of the transverse plate; The cross section of the clamping jaw is an isosceles triangle with a through hole in the middle, the fastening mechanism is a fastening bolt, and the through holes of the clamping jaw are connected with the two ends of the transverse plate through the fastening bolt; The grinding wheel is characterized by further comprising a positioning pin, wherein the upper transverse edge of one side of the retainer is fixedly connected with a shaft seat, the positioning pin is L-shaped, the upper end of a positioning vertical rod of the positioning pin penetrates through the shaft seat and is in threaded connection with a fastening nut, a transverse clamping plate of the positioning pin can rotate below a cross beam of the supporting beam, the fastening nut is screwed when the transverse clamping plate rotates below the cross beam of the supporting beam, the retainer is fixed on an outer pin hole of the supporting beam at the moment, the two are positioned and locked, a guide post, a pull rod and the retainer form a connecting rod structure when the transverse clamping plate rotates away from the lower part of the cross beam, the retainer rotates outwards along with lifting of the guide post, the lower part of a clamping jaw is retracted inwards to lift the edge of the grinding wheel, and the grinding wheel is dropped after being lifted to a preset position to clamp the positioning pin in a rotating way.
2. The adjustable grinding wheel lifting appliance of claim 1, wherein the upper end of the guide post is fixedly connected with two small transverse plates, and two through holes are respectively formed in two ends of each small transverse plate.
3. The adjustable grinding wheel sling according to claim 1, wherein the isosceles triangle has anti-skid patterns at the bottom.
4. The adjustable wheel sling as defined in claim 3, wherein the isosceles triangle has a base side thicker than the other two sides.
5. The adjustable wheel sling as defined in claim 1, wherein one of the through hole of the claw and the through hole of the cross plate is a threaded hole.
6. The adjustable grinding wheel sling according to claim 5, wherein the through hole of the claw is a threaded hole.
7. The adjustable grinding wheel lifting appliance of claim 1, wherein the number of pin holes at two ends of the cross beam of the supporting beam is two.
8. The adjustable grinding wheel lifting appliance of claim 1, wherein the pin holes at the two ends of the cross beam of the supporting beam are bar-shaped holes.
9. The adjustable wheel sling as defined in claim 8, wherein the strip-shaped hole is provided with graduation marks.

Description

Adjustable grinding wheel lifting appliance Technical Field The invention relates to a lifting appliance, in particular to an adjustable grinding wheel lifting appliance. Background The grinding wheel is one of the grinding tools with the largest dosage and the widest application range, and can be used for grinding, slotting, cutting and other grinding operations on workpieces such as metals and non-metals. But the diameter of the grinding wheel is gradually reduced along with the continuous abrasion of the grinding wheel in the use process. When the linear speed of the grinding wheel does not meet the processing requirement, the grinding wheel must be replaced. The thickness and the weight of the grinding wheel used by the steel production enterprises are large, and when the grinding wheel is dismounted offline each time, an operator is required to move the grinding wheel up from the turnover box to the main shaft of the equipment by bare hands for mounting. The weight of the grinding wheel is tens of kilograms, so that 3-4 persons are required to cooperatively work each time a new grinding wheel is carried, and the whole process is very labor-consuming. Moreover, due to the large weight, once accidents occur in the process of matching by a plurality of people, potential safety hazards of squeezing injury, smashing injury and sprain to the waist are easy to occur, and the operation safety risk is high. In addition, the grinding wheel with higher hardness has higher cost and is brittle, and the operator has the risk of scrapping the grinding wheel caused by hand-off falling in bare-handed operation. And, different polishing demands can require to match grinding wheels with different specifications (phi 1100mm, phi 915 mm) and materials, so that the use of a conventional lifting appliance device is limited. For this purpose, the applicant devised a grinding wheel sling (CN 107324208 a) comprising a lifting beam, a clamping device connected to said lifting beam, and an anti-explosion adjustment rod arranged on said clamping device. However, in the application process, the clamping chassis is semicircular, and when the anti-explosion adjusting rod is used in different specifications, the anti-explosion adjusting rod can be adjusted, but after the diameter of the grinding wheel is changed, the anti-explosion adjusting rod cannot be in overlapping contact with the clamping chassis, so that edge damage is easy to cause. In addition, the device realizes clamping for the connecting rod, and if the laying plane is unstable, the clamping force is lost at the moment, inclination can be caused, and personnel accidents or grinding wheel damage easily occur. Therefore, there is a need for an adjustable wheel sling with better clamping force and stability. Disclosure of Invention The invention aims at overcoming the defects of the prior art, and provides an adjustable grinding wheel lifting appliance, which realizes multi-specification grinding wheel conveying operation through the adjustable lifting appliance, improves the operation mode of pure manual labor when conveying grinding wheels, and utilizes machinery to replace manual work to improve operation conditions. The technical scheme includes that the adjustable grinding wheel lifting appliance is characterized by comprising a lifting ring, a guide post, a pull rod, a retainer, clamping claws and a supporting beam, wherein the lifting ring is fixedly connected with the upper end of the guide post, the supporting beam comprises a cross beam and a vertical rod, the vertical rod is provided with a cavity matched with the lower end of the guide post, the lower end of the guide post is inserted into the cavity of the vertical rod, two ends of the cross beam are provided with pin holes, the pull rod and the retainer are symmetrically arranged, the upper end of the pull rod is connected with a guide pin shaft, the retainer comprises a transverse plate, two inverted L-shaped vertical plates are fixedly connected to the inner side of the middle of the transverse plate, the vertical edges of the inverted L-shaped vertical plates are connected with a transverse plate pin shaft, the upper transverse edges of the inverted L-shaped vertical plates are connected with the lower end of the pull rod, the clamping claws are respectively connected to the two ends of the transverse plates of the retainer in a rotating mode, and a fastening mechanism is used for realizing position locking. Further, the upper end of the guide post is fixedly connected with two small transverse plates, and two through holes are respectively formed in two ends of each small transverse plate. Further, the cross section of the clamping jaw is an isosceles triangle with a through hole in the middle, the fastening mechanism is used for fastening bolts, and the through holes of the clamping jaw are connected with two ends of the transverse plate through the fastening bolts. Further, the bottom side of the isoscel