CN2052894U

CN2052894U - Static hydraulics balance

Info

Publication number: CN2052894U
Application number: CN 89209530
Authority: CN
Inventors: 宋杰; 李肇乾
Original assignee: SHENYANG BALANCE INSTRUMENT FACTORY
Current assignee: SHENYANG BALANCE INSTRUMENT FACTORY
Priority date: 1989-09-20
Filing date: 1989-09-20
Publication date: 1990-02-14

Abstract

The utility model provides a static hydraulics balance used for testing the apparent specific gravity of grain stone and cobble. The utility model comprises a platform, a column which is fixed on the platform, a cross beam which is assembled on the column, an index and a vernier device which are respectively arranged on the cross beam, liftinglugs which are arranged on both ends of the cross beam, wherein, a glass water container which is provided with an overflow valve is arranged on the platform; a hanging basket with mesh openings and a holding tray with mesh openings are respectively hung on the liftinglugs on both ends of the cross beam. The utility model not only has compact structure which can simplify operation program, but also can remarkably enhance measuring precision. The static hydraulics balance has high work efficiency.

Description

Static hydraulics balance

The utility model provides a kind of device of testing a stone, cobble apparent gravity.This device is applicable to the testing department and the relevant R﹠D institution of construction enterprises such as building, highway.

The testing department of domestic construction and construction of the highway unit when test grain stone, cobble proportion, generally all adopts more loaded down with trivial details method of testing at present.Promptly at first sample is packed in the wide-mouth bottle of a ground, then in bottle, injects potable water, cover bottleneck with glass sheet then, with about, the method that rolls gets rid of bubble.After bubble drained, the potable water of annotating in bottle again was until protruding the bottleneck edge.At this moment slide along bottleneck rapidly with glass sheet, make it be close to the bottleneck water surface.Dry the outer moisture content of bottle, utilize Roberval's balance to take by weighing the general assembly (TW) of sample, bottle, water and glass sheet.After this, by taking out sample in the bottle, clean bottle again,, inject potable water, be close to the bottleneck water surface, take by weighing the weight of bottle, water, glass sheet, obtain the proportion of sample at last with glass sheet to bottle with above-mentioned same method.This test method complicated operation, the Roberval's balance precision is low, and because operator's gimmick difference is easy to generate error, causes test figure unreliable.Up to the present, going back the desirable proving installation of neither one uses in actual test job.

The purpose of this utility model provides a kind of device of testing a stone, cobble apparent gravity, and it is compact conformation not only, the simplified operation program, and can significantly improve measuring accuracy, value is accurate, the work efficiency height.

The purpose of this utility model is achieved in that the structure of this device based on existing equal-arm balance, keep original platform, be fixed on the column on the platform, be assembled in the crossbeam on the column and be loaded on pointer, the vernier device on the crossbeam respectively and hang over the hanger at two ends.Hang the indigo plant of hanging that has sieve aperture then on the hanger of balance crossbeam one end, the aperture of sieve aperture is 19mm; Hang a pallet on the hanger of the other end.On adjustable platform, place the glass container that is filled with water of a carry potential overflow valve.Hang the interior sample immersion processing of indigo plant as long as will pack into after, insert in the water container on the platform, can carry out measuring operation.

Because the utility model is improved to form on the architecture basics of existing equal-arm balance, so specialist manufacturers can not increase equipment, can produce.Sample is packed into and is hung after blue immersion handles, and places the glass container that is filled with water that has surplus valve on the platform easily, utilizes surplus valve to control water surface elevation in the container voluntarily, thereby has simplified the test operation program.By the vernier device on the balance crossbeam, it is linked to each other with the label reading, can reduce the number of times that increases, subtracts counterweight, save the consumption of counterweight.

Below in conjunction with accompanying drawing the utility model is further described:

Fig. 1 is the synoptic diagram of a kind of concrete structure of the utility model.

Describe concrete structure of the present utility model and operational circumstances in detail according to Fig. 1.This device keeps some design features of existing equal-arm balance, as adjustable platform 4, be fixed on column 3 on the platform 4, be assembled in the crossbeam 1 on the column 3, at the center of crossbeam 1 pointer 8 is housed, vernier device 9 is housed on the last plane, the two ends of crossbeam 1 hang with hanger 2.Hanging one on one of them hanger 2, to have hanging of sieve aperture blue 5, and the aperture of sieve aperture is 19mm, can satisfy the requirement less than the separatrix size of grain stone and sandstone.So both satisfy the requirement of grain stone, cobble, removed sand again, can improve measuring accuracy.Hang a pallet on another hanger 2, but the splendid attire counterweight.On the platform 4 of balance, place the glass container 7 that is filled with water of a carry potential overflow valve 6, during test, will pack into and hang blue 5 and the grain stone after immersion is handled, cobble, together put into water container and get final product together with hanging blue 5.

During operation, balance is remained static, take and hang blue 5, standard sample packed into, and hanging soaks in blue 5 to handle cleans, and exceed at least at the water surface under the condition of sample 5cm, soak after 24 hours, blue 5 glass containers 7 that are filled with water that place on the platform 4 of hanging of sample will be housed, adopt oscilaltion to hang blue 5 method eliminating bubble.When hanging blue 5 whole soaking in water, measure water temperature, weigh with scale then and hang indigo plant 5 and the weight g of sample in water ₂Reintroduce and hang indigo plant 5, sample is put into baking oven require oven dry routinely.Oven dry back room temperature cooling weighing g ₀Hang blue 5 and insert its weight of weighing g in the glass container 7 of same temperature water ₁, during above-mentioned weighing, the water surface elevation in the container 7 is controlled voluntarily by surplus valve 6.Weighing result substitution apparent gravity measure equation with reading can draw measured value.Be that arithmetic mean with twice test findings is the apparent gravity value of mensuration generally speaking.

Claims

1, a kind of hydrostatics balance that is used to test a stone, cobble apparent gravity, comprise platform, be fixed on the column on the platform, the hanger that is assembled in the crossbeam on the column and is loaded on pointer, vernier device and its two ends of extension on the crossbeam respectively, it is characterized in that on platform, being equipped with the glass container that is filled with water of carry potential overflow valve, on the hanger of crossbeam one end, hang the indigo plant of hanging that has sieve aperture, the aperture of sieve aperture is 19mm, hangs a pallet on the hanger of the other end.