CN-224202886-U - Jacking mechanism for dynamic elastic modulus detection of wood/bamboo full-length plate

CN224202886UCN 224202886 UCN224202886 UCN 224202886UCN-224202886-U

Abstract

The utility model provides a jacking mechanism for dynamic elastic modulus detection of a wood/bamboo full-scale plate, which is in line contact with the plate, ensures levelness of the plate after being jacked, has small lifting resistance, rapid plate-like lifting and simple structure, and provides basic guarantee for online automatic and accurate detection of the elastic modulus of the plate. The lifting device comprises supporting rods, a lifting frame, guide posts, supporting legs and a lifting power device, wherein the supporting rods for lifting the plates are arranged above the front part and the rear part of the lifting frame, the guide posts are fixed below the front part and the rear part of the lifting frame, each guide post is arranged on one supporting leg in a vertical sliding mode, the lifting power device for driving the lifting frame to lift up and down is arranged between the supporting legs and the lifting frame, the distance between the two mutually parallel supporting rods is 0.776L, L is the length of the plates, and the two supporting rods are in line contact with the lower surface of the plates.

Inventors

ZOU HONGYAN
CHEN QINGPING
ZHANG WENWU
ZHOU PIN
CHEN JIE
LIN QING
Xu Benhuan
WANG ZHENG
WANG JUN
DING XIAOYANG
Yin Qianpeng
QI LIANG
YANG XIAOJUN
LIANG XINGYU
LI YINGCHAO

Assignees

南京林业大学

Dates

Publication Date: 20260505
Application Date: 20250718

Claims (6)

1. A climbing mechanism that is used for wood/bamboo full-length panel dynamic elastic modulus to detect, characterized by: the lifting device comprises supporting rods, a lifting frame, guide posts, supporting legs and a lifting power device, wherein the supporting rods for lifting the plates are arranged above the front part and the rear part of the lifting frame, the guide posts are fixed below the front part and the rear part of the lifting frame, each guide post is arranged on one supporting leg in a vertical sliding mode, the lifting power device for driving the lifting frame to lift up and down is arranged between the supporting legs and the lifting frame, the distance between the two mutually parallel supporting rods is 0.776L, L is the length of the plates, and the two supporting rods are in line contact with the lower surface of the plates.
2. The lifting mechanism for dynamic elastic modulus detection of wood/bamboo full-length plates according to claim 1, further comprising a synchronizing device, wherein the synchronizing device comprises a synchronizing shaft, a bearing seat, synchronizing wheels and meshing teeth, the synchronizing shaft is simultaneously and rotatably arranged on the bearing seats on the front supporting leg and the rear supporting leg, and the front synchronizing wheel and the rear synchronizing wheel fixed on the synchronizing shaft are meshed with the meshing teeth on the front guide post and the rear guide post.
3. The jack-up mechanism for dynamic elastic modulus detection of wood/bamboo full-scale plates according to claim 2, wherein the guide posts are cylindrical, two rotating upper guide rollers are arranged on the upper portion of each support leg, one rotating lower guide roller is arranged on the upper portion of each support leg, two upper guide rollers on the same support leg are positioned on two sides of the axis of the guide posts, the lower guide rollers and the synchronous wheels on the same support leg are positioned on two sides of the axis of the guide posts, and bus bars of the upper guide rollers and the lower guide rollers are arc lines in contact with the periphery of the guide posts.
4. The lifting mechanism for detecting the dynamic elastic modulus of the wood/bamboo full-scale plate according to claim 3, wherein slotted holes are formed in the side surfaces of the supporting legs at positions corresponding to the upper guide roller, the lower guide roller and the synchronizing wheel, so that the upper guide roller, the lower guide roller and the synchronizing wheel penetrate through the slotted holes to be matched with guide columns in the supporting legs.
5. The jacking mechanism for dynamic elastic modulus detection of the wood/bamboo full-scale plate, according to claim 3, is characterized in that 4 guide posts and 4 support legs are arranged, two support legs are arranged in front of and behind each guide post, two support legs are fixedly connected through a cross brace, two support legs are fixedly connected through another cross brace, the jacking power device is a front jacking cylinder and a rear jacking cylinder which are parallel, and each jacking cylinder is located between one cross brace and a jacking frame.
6. The jacking mechanism for dynamic elastic modulus detection of wood/bamboo full-length plates, according to claim 1, is characterized in that a plurality of V-shaped supporting blocks are arranged above the front part and the rear part of the jacking frame, and each supporting rod with a square cross section is placed on the V-shaped grooves of the plurality of V-shaped supporting blocks.

Description

Jacking mechanism for dynamic elastic modulus detection of wood/bamboo full-length plate Technical Field The utility model relates to a jacking mechanism, in particular to a jacking mechanism for supporting and lifting a wood/bamboo full-length plate for dynamic elastic modulus detection. Background The elastic modulus test is carried out on the plate, the plate is freely hung by adopting an elastic rope, the midpoint or the corner point of the test piece is struck by a forceful hammer, the first-order bending frequency of the free plate is obtained, and the elastic modulus is calculated. The method is complicated to operate because the plate hung on the elastic rope is in a free state, and is difficult to realize rapid and efficient detection. In order to improve the detection efficiency, a dynamic elastic modulus automatic detection production line of the wood/bamboo full-scale plate needs to be adopted, and the plate is detected after being conveyed to a specified position by a rotary conveying roller shaft on the production line. But the accuracy of the test result is necessarily reduced by knocking and detecting the plate under the condition that the plate is not separated from the roll shaft. Therefore, the plate needs to be supported and lifted by a jacking mechanism, and subsequent operations such as knocking and detecting are performed after the plate is separated from the roll shaft. Disclosure of utility model The utility model aims to provide a jacking mechanism for detecting the dynamic elastic modulus of a wood/bamboo full-scale plate, which is in line contact with the plate, ensures the levelness of the plate after being jacked, has small lifting resistance, rapid plate-like lifting and simple structure, and provides basic guarantee for online automatic and accurate detection of the elastic modulus of the plate. In order to achieve the technical purpose, the utility model adopts the following technical scheme: The jacking mechanism for dynamic elastic modulus detection of the wood/bamboo full-scale plate comprises supporting rods, a jacking frame, guide posts, supporting legs and a jacking power device, wherein the supporting rods for jacking the plate are arranged above the front part and the rear part of the jacking frame, the guide posts are fixed below the front part and the rear part of the jacking frame, each guide post is arranged on one supporting leg in a sliding mode, the jacking power device for driving the jacking frame to lift up and down is arranged between each supporting leg and the jacking frame, the distance between two mutually parallel supporting rods is 0.776L, L is the length of the plate, and the two supporting rods are in line contact with the lower surface of the plate. The jacking mechanism for detecting the dynamic elastic modulus of the wood/bamboo full-scale plate further comprises a synchronizing device, wherein the synchronizing device comprises a synchronizing shaft, a bearing seat, synchronizing wheels and meshing teeth, the synchronizing shaft is simultaneously and rotatably arranged on the bearing seats on the front supporting leg and the rear supporting leg, and the front synchronizing wheel and the rear synchronizing wheel fixed on the synchronizing shaft are meshed with the meshing teeth on the front guide post and the rear guide post. The jacking mechanism for dynamic elastic modulus detection of the wood/bamboo full-scale plate is characterized in that the guide column is cylindrical, two rotating upper guide rollers are arranged on the upper portion of each support leg, a rotating lower guide roller is arranged on the upper portion of each support leg, two upper guide rollers on the same support leg are located on two sides of the axis of the guide column, the lower guide rollers and the synchronous wheels on the same support leg are located on two sides of the axis of the guide column, and bus bars of the upper guide rollers and the lower guide rollers are arc lines in contact with the periphery of the guide column. The jacking mechanism for detecting the dynamic elastic modulus of the wood/bamboo full-scale plate is characterized in that slotted holes are formed in the side surfaces of the supporting legs at positions corresponding to the upper guide roller, the lower guide roller and the synchronizing wheels, so that the upper guide roller, the lower guide roller and the synchronizing wheels penetrate through the slotted holes to be matched with the guide columns in the supporting legs. The jacking mechanism for dynamic elastic modulus detection of the wood/bamboo full-scale plate comprises 4 guide posts and 4 support legs, wherein the front two support legs are fixedly connected through a transverse support, the rear two support legs are fixedly connected through another transverse support, the jacking power device comprises front and rear two parallel jacking cylinders, and each jacking cylinder is positioned between one transverse support and a j