CN103983466A

CN103983466A - Method for loading self-balancing gravity load

Info

Publication number: CN103983466A
Application number: CN201410189506.1A
Authority: CN
Inventors: 夏军武; 陈晓淼; 路振花; 谢伟; 卢楠; 常虹
Original assignee: China University of Mining and Technology CUMT
Current assignee: China University of Mining and Technology CUMT
Priority date: 2014-05-06
Filing date: 2014-05-06
Publication date: 2014-08-13
Anticipated expiration: 2034-05-06
Also published as: CN103983466B

Abstract

The invention discloses a method for loading a self-balancing gravity load, and belongs to the technical field of gravity load tests. According to the method, a V-shaped hanging piece, a linked pulley block, a hanging hook, a steel wire rope, a steel wire rope fixing device and a counter force base are included. The linked pulley block is composed of an upper pulley block formed by a plurality of pulleys and a lower pulley block formed by a plurality of pulleys which are wound around by the steel wire rope in sequence. A needed weight is hung on the hanging hook, a heavy load is amplified through the linked pulley block and transmitted to distribution beams through the V-shaped hanging piece, and the distribution beams transmit the load to a tested piece. The tested piece is arranged on the counter force base, the linked pulley block is connected to the counter force base through the steel wire rope, and the steel wire rope is fixed through the steel wire rope fixing device. The method can conveniently and stably achieve loading of the gravity load through the pulley block and a special transmitting device.

Description

Self-equilibrating gravity laod loading method

Technical field

The load load test method that the present invention relates to engineering field, belongs to gravity laod experimental technique field.

Background technology

At present, in the scientific research process in the fields such as civil engineering work, need to carry out a lot of dynamic and static power load tests.But existing dynamic and static power test unit does not all have supporting gravity laod charger, and the weight that leans against merely on tester the gravity such as hanging or stacking is realized the gravitational load of tester.But for the tester in test, there is no stable structure (as a Pin wall frame), by carry weight, be relatively difficult to realize.

Summary of the invention

In order to overcome above-mentioned the deficiencies in the prior art part, the invention provides a kind of self-equilibrating gravity laod loading method, by pulley blocks and specific transfer device, can facilitate, stably realize the loading of gravity laod.

The present invention is achieved through the following technical solutions:

A kind of self-equilibrating gravity laod loading method, overlap joint " V " type carry part in distribution beam, " V " type carry part below is connected with townhouse pulley blocks by wire rope II, townhouse pulley blocks comprises upper and lower juxtaposed upper row's pulley blocks and lower row's pulley blocks, every row's pulley blocks consists of side by side a plurality of pulleys, between upper row's pulley blocks and the pulley of lower row's pulley blocks, by wire rope I, be wound around successively, one end of described wire rope I is fixed on lower row's pulley blocks, the other end of wire rope from upper row's pulley blocks around lower formation free end, at this free end connecting shackle, during test, test test specimen is placed on counter-force base, the top of test test specimen contacts with distribution beam, by wire rope III, lower row's pulley blocks is connected on counter-force base, with Wirerope fixing device, wire rope III is fixed on counter-force base, on suspension hook, hang required counterweight or other weight, through townhouse pulley blocks, weight load is amplified, through " V " type carry part, be delivered in distribution beam again, distribution beam passes to load test test specimen again, make the state of whole device in a self-equilibrating.

Improvement as said method, the bottom of described " V " type carry part is connected to the axial region two ends of upper row's pulley blocks by the wire rope II described in two, the axial region two ends of described lower row's pulley blocks are connected on counter-force base by the wire rope III described in two, on counter-force base, there is the through hole with wire rope III adaptation, at position of opening, be fixed with end plate, described wire rope III from through hole and end plate through being locked by described Wirerope fixing device.

The invention has the beneficial effects as follows: the present invention can provide a kind of easy gravity laod charger and method for most of load load tests, and the present invention can utilize limited counterweight weight, by the load amplification of pulley blocks, the test that realizes larger gravity laod loads, because bottom of device is provided with counter-force base, make whole device in a kind of self-equilibrating state, therefore need not too much consider that device is to externalities.The present invention is convenient to be loaded, reliable and stable, operate easy.

Accompanying drawing explanation

The present invention is further described according to drawings and embodiments below.

Fig. 1 is self-equilibrating gravity laod charger front elevation of the present invention;

Fig. 2 is self-equilibrating gravity laod charger side view;

Fig. 3 is townhouse pulley block structure schematic diagram of the present invention;

Fig. 4 is that overall process of the present invention loads schematic diagram.

In figure, 1, " V " type carry part, 1-1, hanging scroll, 1-2, " V " shape side plate, 2, wire rope I, 3, townhouse pulley blocks, 3-1, upper row's pulley blocks, 3-2, lower row's pulley blocks, 4, suspension hook, 5, Wirerope fixing device, 6, counter-force base, 7, end plate, 8, test test specimen, 9, distribution beam, 10, pulley, 11, wire rope II, 12, wire rope III.

Embodiment

Below in conjunction with embodiment, the present invention is further described.

As shown in drawings, a kind of self-equilibrating gravity laod loading method, overlap joint " V " type carry part 1 in distribution beam 9, " V " type carry part 1 below is connected with townhouse pulley blocks 3 by wire rope II 11, townhouse pulley blocks 3 comprises upper and lower juxtaposed upper row's pulley blocks 3-1 and lower row's pulley blocks 3-2, every row's pulley blocks consists of side by side a plurality of pulleys 10, between the pulley of upper row's pulley blocks 3-1 and lower row's pulley blocks 3-2, by wire rope I 2, be wound around successively, one end of described wire rope I 2 is fixed on lower row's pulley blocks 3-2, the other end of wire rope 2 from upper row's pulley blocks 3-1 around lower formation free end, at this free end connecting shackle 4, during test, test test specimen 8 is placed on counter-force base 6, the top of test test specimen 8 contacts with distribution beam 9, by wire rope III 12, lower row's pulley blocks 3-2 is connected on counter-force base 6, with Wirerope fixing device 5, wire rope III 12 is fixed on counter-force base 6, on suspension hook 4, hang required counterweight or other weight, through townhouse pulley blocks 3, weight load is amplified, through " V " type carry part 1, be delivered in distribution beam 9 again, distribution beam 9 passes to load test test specimen 8 again, make the state of whole device in a self-equilibrating.

Improvement as said method, the bottom of described " V " type carry part 1 is connected to the axial region two ends of upper row's pulley blocks 3-1 by the wire rope II 11 described in two, the axial region two ends of described lower row's pulley blocks 3-2 are connected on counter-force base 6 by the wire rope III 12 described in two, on counter-force base 6, there is the through hole with wire rope III 12 adaptations, at position of opening, be fixed with end plate 7, described wire rope III 12 is passed by 5 lockings of described Wirerope fixing device from through hole and end plate 7.

The self-equilibrating gravity laod charger that this method is used, as Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4, it comprises for being overlapped on " V " type carry part 1 in distribution beam 9, " V " type carry part 1 below is connected with townhouse pulley blocks 3 by wire rope II 11, townhouse pulley blocks 3 comprises upper and lower juxtaposed upper row's pulley blocks 3-1 and lower row's pulley blocks 3-2, every row's pulley blocks consists of side by side a plurality of pulleys 10, can determine pulley number according to actual loaded demand, between the pulley of upper row's pulley blocks 3-1 and lower row's pulley blocks 3-2, by wire rope I 2, be wound around successively, one end of described wire rope I 2 is fixed on lower row's pulley blocks 3-2, the other end of wire rope I 2 is connected with for hanging the suspension hook 4 of weight, described lower row's pulley blocks 3-2 is fixed on counter-force base 6 by wire rope III 12, on counter-force base 6, be useful on the Wirerope fixing device 5 of fixing described wire rope III 12.

Described " V " type carry part 1 comprises two " V " shape side plate 1-2, between the two ends of two " V " shape side plate 1-2, is connected with hanging scroll 1-1, forms the space suitable with distribution beam 9 between two " V " shape side plate 1-2.

The bottom of described " V " type carry part 1 is connected to the axial region two ends of upper row's pulley blocks 3-1 by the wire rope II 11 described in two, the axial region two ends of described lower row's pulley blocks 3-2 are connected on counter-force base 6 by the wire rope III 12 described in two, on counter-force base 6, there is the through hole with wire rope III 12 adaptations, at position of opening, be fixed with end plate 7, described wire rope III 12 is passed by 5 lockings of described Wirerope fixing device from through hole and end plate 7.

The amplification at double that the present invention can realize gravity laod loads, and handling safety, easy, its principle of work is as follows: by the stressed identical principle of wire rope at pulley two ends, the weight that can know hanging passes to every wire rope, and then makes pulley blocks be subject to the load with the identical multiple of wire rope number.When weight acts on wire rope 2 by suspension hook 4, the every wire rope that makes to be wrapped on townhouse pulley blocks all obtains identical gravity laod, thereby the load acting on townhouse pulley blocks is load sum on every wire rope, again load is passed to tester by V-type carry part 1, just can play the effect that load amplifies at double.

Claims

1. a self-equilibrating gravity laod loading method, it is characterized in that: at the upper overlap joint of distribution beam (9) " V " type carry part (1), " V " type carry part (1) below is connected with townhouse pulley blocks (3) by wire rope II (11), townhouse pulley blocks (3) comprises upper and lower juxtaposed upper row's pulley blocks (3-1) and lower row's pulley blocks (3-2), every row's pulley blocks consists of side by side a plurality of pulleys (10), between the pulley of upper row's pulley blocks (3-1) and lower row's pulley blocks (3-2), by wire rope I (2), be wound around successively, one end of described wire rope I (2) is fixed on lower row's pulley blocks (3-2), the other end of wire rope (2) from upper row's pulley blocks (3-1) around lower formation free end, at this free end connecting shackle (4), during test, to test test specimen (8) is placed on counter-force base (6), the top of test test specimen (8) contacts with distribution beam (9), by wire rope III (12), lower row's pulley blocks (3-2) is connected on counter-force base (6), with Wirerope fixing device (5), wire rope III (12) is fixed on counter-force base (6), at required counterweight or other weight of the upper hanging of suspension hook (4), through townhouse pulley blocks (3), weight load is amplified, through " V " type carry part (1), be delivered in distribution beam (9) again, distribution beam (9) passes to load test test specimen (8) again, make the state of whole device in a self-equilibrating.

2. self-equilibrating gravity laod loading method according to claim 1, it is characterized in that: the bottom of described " V " type carry part (1) is connected to the axial region two ends of upper row's pulley blocks (3-1) by the wire rope II (11) described in two, the axial region two ends of described lower row's pulley blocks (3-2) are connected on counter-force base (6) by the wire rope III (12) described in two, on counter-force base (6), there is the through hole adaptive with wire rope III (12), at position of opening, be fixed with end plate (7), described wire rope III (12) from through hole and end plate (7) through being locked by described Wirerope fixing device (5).