CN-122009974-A - Crane electricity grinding plate system based on gravity self-adaptive adjustment and preparation and installation method thereof

CN122009974ACN 122009974 ACN122009974 ACN 122009974ACN-122009974-A

Abstract

The invention discloses a crane electricity grinding plate system based on gravity self-adaptive adjustment and a preparation and installation method thereof, and the crane electricity grinding plate system comprises a grinding channel porcelain bottle and a bearing frame used for fixing the grinding channel porcelain bottle, wherein the bearing frame is detachably connected with a dynamic bottom plate, the dynamic bottom plate is lapped on a guide rail slide wire, the dynamic bottom plate is connected with the bearing frame in a hinging manner and can rotate along the bearing frame, the bearing frame and the dynamic bottom plate form a crane electricity grinding plate, the crane electricity grinding plate is provided with a plurality of crane electricity grinding plates, the crane electricity grinding plates are fixed on a crane beam wall, the bearing frame is a II-shaped bearing frame, the bearing frame adopts a frame with a cross section of II shape formed by welding a 14# channel steel, the height of a vertical arm is 300mm, the horizontal span is 200mm, the II-shaped bearing frame is provided with a top prefabricated hole used for fixing the dynamic bottom plate, and the inside of the top prefabricated hole is detachably connected with a transverse pin shaft.

Inventors

SHANG ZHIYU
WANG DONG
YUAN LICHENG
LIU JUNFENG
YAO LIJUN
WANG DONGKAI
WU XIAOJING
WANG YONGGANG
WANG HAIBING
HUA GUOLONG
CHEN XUEZHENG
Bao Yana

Assignees

包头钢铁（集团）有限责任公司

Dates

Publication Date: 20260512
Application Date: 20260123

Claims (9)

1. The crane electricity grinding plate system based on gravity self-adaptive adjustment comprises a grinding channel porcelain bottle and is characterized by further comprising a bearing frame for fixing the grinding channel porcelain bottle, wherein the bearing frame is detachably connected with a dynamic bottom plate, and the dynamic bottom plate is lapped on a guide rail slide wire; the dynamic bottom plate is connected to the bearing frame in a hinged manner and can rotate along the bearing frame; The bearing frame and the dynamic bottom plate form a crane power grinding plate, a plurality of crane power grinding plates are arranged, and the crane power grinding plates are fixed on the crane beam wall.
2. The crane electricity grinding plate system based on gravity self-adaptive adjustment of claim 1, wherein the bearing frame is a II-shaped bearing frame, the bearing frame is welded into a frame with a II-shaped cross section by adopting a No. 14 channel steel, the height of a vertical arm is 300mm, and the horizontal span is 200mm.
3. The crane electricity grinding plate system based on gravity self-adaptive adjustment of claim 2, wherein the II-shaped bearing frame is provided with a top prefabricated hole for fixing the dynamic bottom plate, a transverse pin shaft is detachably connected in the top prefabricated hole, and the transverse pin shaft penetrates through the top prefabricated hole of the II-shaped bearing frame and is fixed at two ends through clamping springs.
4. The crane electricity grinding plate system based on gravity self-adaptive adjustment according to claim 3, wherein the clamping spring grooves formed in the two ends of the transverse pin shaft are 2mm in depth and 6mm in width, and clamping springs are installed in the clamping spring grooves.
5. The crane electricity grinding plate system based on gravity self-adaptive adjustment of claim 4, wherein the matching part of the dynamic bottom plate and the transverse pin shaft is connected with symmetrically arranged sleeve structures in a welding mode to be in plug-in matching with the transverse pin shaft.
6. The crane electricity grinding plate system based on gravity self-adaptive adjustment of claim 5, wherein the bottom of the bearing frame is welded to form a closed bottom plate, a tungsten carbide coating is sprayed on the surface of the bottom plate, the thickness of the tungsten carbide coating is 0.2mm, and the hardness is more than or equal to 80HRC.
7. The crane electricity grinding plate system based on gravity self-adaptive adjustment of claim 6, wherein the dynamic bottom plate is made of Q235 steel plates and has a thickness of 10mm, and the hinge point of the bearing frame and the dynamic bottom plate is arranged in an offset manner and is 40mm away from the front end.
8. The crane power strip system of claim 7 wherein said dynamic base plate automatically rotates about said transverse pin through an angle adjustment range of 40 to 50 degrees.
9. A method for preparing and installing a crane grinding plate system based on gravity self-adaptive adjustment according to claim 8 is characterized by comprising the following steps of; Step 1, manufacturing a bearing frame by adopting a structure, welding a No. 14 channel steel into a frame with a II-shaped section, wherein the height of a vertical arm is 300mm, the horizontal span is 200mm, and a transverse pin shaft is made of 40Cr alloy steel material; Cutting channel steel, namely cutting and blanking by adopting laser, wherein the length of a vertical arm is 300+/-0.5 mm, and welding and forming the bearing frame by adopting continuous welding seams through CO 2 shielded welding. Step 2 mechanical Assembly Penetrating a transverse pin shaft through a top prefabricated hole of the II-shaped frame, wherein the top prefabricated hole is in tolerance fit with H7/g6, and fixing two ends of the transverse pin shaft through clamp springs, wherein the depth of a clamp spring groove is 2mm, and the width of the clamp spring groove is 6mm; The dynamic bottom plate is connected with the bearing frame by adopting a hinge, and the initial angle of the dynamic bottom plate is adjusted to be 45 degrees plus or minus 1 degree. Step 3, field installation The reference surface is determined, wherein a crane beam provides a mounting reference surface for the electric grinding plate system, the levelness is calibrated through a laser positioning instrument, and the error is less than or equal to 0.5mm/m; The gap presetting, namely presetting an initial gap of 50+/-2 mm between the electric grinding plate system and the sliding wire, wherein the gap value is verified to be an optimal floating space through finite element analysis; The self-adaptive working cycle comprises sliding line fluctuation-T triggering dynamic bottom plate floating-maintaining brush piece constant contact pressure, and the cycle working detail comprises a triggering mechanism, wherein when a crane operates to cause sliding line fluctuation, the common amplitude is 5-30mm, the dynamic bottom plate transient response comprises response time <0.1 second floating adjustment, dynamic bottom plate rotation around a hinging point, the angle self-adaptive range is 30-60 degrees, gravity component force recombination comprises vertical pressure fluctuation < +/-3%, the measured value is 82.5-84.7N, the pressure maintenance comprises the brush piece contact pressure stabilization is 83.3+/-1N, and the contact resistance is kept to be 32+/-2 mΩ and is far lower than the safety threshold value 100mΩ.

Description

Crane electricity grinding plate system based on gravity self-adaptive adjustment and preparation and installation method thereof Technical Field The invention belongs to the technical field of power supply of hoisting equipment in the metallurgical industry, and particularly relates to a crane electricity grinding plate system based on gravity self-adaptive adjustment and a preparation and installation method thereof. Background In the prior art, a large crane at a steel-making factory level commonly adopts an electricity grinding plate power supply system, and the traditional electricity grinding plate has three defects: (1) The original structure adopts spring compression type contact, when the sliding wire is fluctuated, uneven contact pressure is easy to cause, and arc burning loss is generated; (2) The structure is unstable, namely the longitudinal pin shaft is easy to tilt under the influence of inertial force in the operation of the crane; (3) The service life is low, and the dust environment accelerates abrasion. Based on the technical defects, the prior improved scheme adopts a reinforced spring structure, and increases the contact pressure but leads to 30 percent of friction force rise, thereby increasing abrasion. In view of the above factors, the crane electricity grinding plate system based on gravity self-adaptive adjustment and the installation method thereof are provided, the three problems of non-adjustable contact pressure, instable structure and poor environmental adaptability are solved, and stable contact with zero external force adjustment is realized. Disclosure of Invention The invention aims to provide a crane electricity grinding plate system based on gravity self-adaptive adjustment and a preparation and installation method thereof, so as to solve the problems in the background art. The invention aims at realizing the technical scheme that the crane electricity grinding plate system based on gravity self-adaptive adjustment comprises a grinding channel porcelain bottle and a bearing frame for fixing the grinding channel porcelain bottle, wherein the bearing frame is detachably connected with a dynamic bottom plate, and the dynamic bottom plate is lapped on a guide rail slide wire; the dynamic bottom plate is connected to the bearing frame in a hinged manner and can rotate along the bearing frame; The bearing frame and the dynamic bottom plate form a crane power grinding plate, a plurality of crane power grinding plates are arranged, and the crane power grinding plates are fixed on the crane beam wall. Further, the bearing frame is a II-shaped bearing frame, the bearing frame is welded into a frame with a II-shaped section by adopting a 14# channel steel, the height of a vertical arm is 300mm, and the horizontal span is 200mm. Further, a top prefabricated hole for fixing the dynamic bottom plate is formed in the II-shaped bearing frame, a transverse pin shaft is detachably connected in the top prefabricated hole, penetrates through the top prefabricated hole of the II-shaped bearing frame and is fixed at two ends through clamping springs. Further, the depth of the snap spring grooves formed in the two ends of the transverse pin shaft is 2mm, the width of the snap spring grooves is 6mm, and snap springs are arranged in the snap spring grooves. Further, the matching part of the dynamic bottom plate and the transverse pin shaft is connected with symmetrically arranged sleeve structures in a welding mode to be in plug-in matching with the transverse pin shaft. Further, the bottom of the bearing frame is welded to form a closed bottom plate, a tungsten carbide coating is sprayed on the surface of the bottom plate, the thickness of the tungsten carbide coating is 0.2mm, and the hardness is more than or equal to 80HRC. Further, the dynamic bottom plate is made of Q235 steel plates, the thickness of the dynamic bottom plate is 10mm, and the hinge points of the dynamic bottom plate and the bearing frame are arranged in an offset mode and are 40mm away from the front end. Further, the dynamic bottom plate automatically rotates around the transverse pin shaft by an angle adjusting range of 40-50 degrees. A preparation method of a crane electricity grinding plate system based on gravity self-adaptive adjustment comprises the following steps of; Step 1, manufacturing a bearing frame by adopting a structure, welding a No. 14 channel steel into a frame with a II-shaped section, wherein the height of a vertical arm is 300mm, the horizontal span is 200mm, and a transverse pin shaft is made of 40Cr alloy steel material; Cutting channel steel, namely cutting and blanking by adopting laser, wherein the length of a vertical arm is 300+/-0.5 mm, and welding and forming the bearing frame by adopting continuous welding seams through CO 2 shielded welding. Step 2 mechanical Assembly Penetrating a transverse pin shaft through a top prefabricated hole of the II-shaped frame, wherein the top prefabricated ho