CN2108917U - Single hydraulic prop property measurer - Google Patents
Single hydraulic prop property measurer Download PDFInfo
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- CN2108917U CN2108917U CN 91231837 CN91231837U CN2108917U CN 2108917 U CN2108917 U CN 2108917U CN 91231837 CN91231837 CN 91231837 CN 91231837 U CN91231837 U CN 91231837U CN 2108917 U CN2108917 U CN 2108917U
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Abstract
The utility model relates to a pressure measuring instrument used for a mine, in particular to a multifunctional measurer for the pressure of the external injection type single hydraulic supporting post of a coal mine. The multifunctional measurer for the pressure of the external injection type single hydraulic supporting post of a coal mine is composed of a liquid filling mouth, a pressure meter, a main shell body, a booster pump, a pressure relief valve, and a liquid inlet valve. The liquid inlet valve used for being connected with a hydraulic pipeline can not be arranged, and a liquid storage tank for supplying liquid is added. When the multifunctional measurer for the pressure of the external injection type single hydraulic supporting post of a coal mine measures pressure, a manual booster pump is used for filling liquid and boosting pressure for a support post, which is a pressure boosting measuring method. The abuse that the pressure liquid inside the support post is consumed when pressure measuring and pressure calculating at present to cause the unloading of the support post is overcome. The multifunctional measurer for the pressure of the external injection type single hydraulic supporting post of a coal mine especially can realize the measurement of various support and protection parameters by pressure boosting, can measure and draw the support and protection characteristics of the support post, and can substitute a pressure testing machine to do a pressure experiment for the support post on site under a mine or a ground surface, etc.
Description
The utility model relates to a kind of mining hydraulically operated equipment (HOE) pressure instrumentation, further is to be used for the tonometric multifunctional tester of colliery outside injection type hydraulic pillar.
China's utility model patent " light-duty measuring cell "--notification number: CN2078874U, application number: 90224860.X, applying date: 901210 disclose a kind of strong instrument of measuring of coal mining face outside injection type hydraulic pillar pressure hydraulic pressure that is suitable for.Its purpose is to reduce consumption liquid measure when measuring and the unloading that causes to pillar, improves the accuracy of measuring; Its formation is, the adapter body ante-chamber is equipped with the thimble of band O-ring seal, accompanies one deck center band aperture between thimble rear portion and the ante-chamber, plays the round and elastic sealing gasket of leakproof effect, and the joint inner chamber is a pore, to reduce volume.Its weak point is, and is the same with existing measuring cell, all exists pressure measurement need consume liquid, makes pillar cause the problem of unloading.In addition, this measuring cell is stuck on the triple-use valve easily and unloads, when unloading measuring cell because of the pressure indicator that easily bends of die-offing.
Purpose of design of the present utility model is to avoid above-mentioned the deficiencies in the prior art part and provides a kind of do not need to consume pressure liquid when pressure measurement, can not cause the pillar unloading, and can give pillar fluid injection supercharging, and can obtain the multifunctional monomer hydraulic prop characteristic tester that multiple supporting parameter is measured by the fluid injection supercharging.
Purpose of design of the present utility model can reach by following measure:
Having that fluid pressure table, fluid injection are chewed, in the outside injection type hydraulic pillar characteristic tester of annular lock sleeve, be provided with and chew the supercharger of 2 fluid injection superchargings in pillar by fluid injection; The pressure-release valve that communicates with tensimeter 6 oil circuits is arranged on the main casing 5.
Purpose of design of the present utility model can also reach by following measure:
Supercharger adopts hand piston pump, and the pump case 23 of this pump, piston 24, connecting rod 15, handgrip 20 parts all are positioned at outside the main casing 5, chew 2 opposite sides with fluid injection, and feed liquor retaining valve, the fluid retaining valve of this pump are positioned at main casing 5.
The feed liquor retaining valve inlet end of hand piston pump is connected to the feed liquor valve of manual control, and the inlet end of this feed liquor valve has the rapid-acting coupling 33 that can connect with the workplace fluid pressure line.
Manually control the feed liquor valve, handwheel 43 push rods 42 that drive, that can back down steel ball 34 are arranged, be enclosed within the outer spacer sleeve 39 of push rod, be pressed on steel ball 34 on the unidirectional valve pocket 35 by cylindrical spring 28, the housing screw 29 of dress cylindrical spring 28, feed liquor valve body 31 that it is outside and seal constitute.
The feed liquor retaining valve inlet end of hand piston pump is connected to fluid reservoir 60.
The utility model compared with prior art has the following advantages:
1. the purpose of reaching pressure measurement for hydraulic prop fluid injection supercharging by supercharger, i.e. supercharging manometry does not consume the pressure liquid in the pillar during pressure measurement, can not cause the pillar unloading, and can strengthen the supporting capacity of pillar by supercharging.
2. owing to set up supercharger, expanded the measurement function of this instrument greatly:
A. pressure measurement function: replace pressure testing machine that hydraulic prop is carried out manometric test at the scene, survey specified setting load, safety valve unlatching value, close value etc.; Carry out the voltage stabilizing test and survey the pillar sealing property.Band fluid reservoir pattern, except surveying support force of single-column and actual support power, also can replace pressure testing machine that pillar is carried out the high-low pressure experiments of sealing performance on ground, and the test of retaining valve opening and closing value.
B. top board and bed course soft or hard property testing are asked the integral stiffness of top board and bed course.
C. replace the floor pressure ratio Air holder instrument at the scene, ask the integral stiffness of base plate and bed course thereof.
The drawing explanation of accompanying drawing:
Fig. 1: the structural front view of the utility model embodiment one
Fig. 2: the A-A cut-open view of the structural front view of the utility model embodiment one
Fig. 3: the structural front view of the utility model embodiment two
Fig. 4: the K of the structural front view of the utility model embodiment two is to cut-open view
Fig. 5: the profile synoptic diagram right view of the utility model embodiment two
Fig. 6: the profile synoptic diagram front view of the utility model embodiment two
The utility model is described in further detail below in conjunction with drawings and Examples:
Embodiment 1: Fig. 1 shows the inner structure of embodiment one.Mainly by feed liquor valve, hand piston pump, main casing 5, tensimeter 6, fluid injection chew 2, pressure-release valve six parts form.
A. feed liquor valve: be a valve with the control of handwheel push rod.Be used for making instrument and pipe system high-pressure emulsion to be switched on or switched off.It is positioned at the entrance side of feed liquor retaining valve, and the upper end is screwed on the main casing 5 with screw thread.Feed liquor valve body 31 is housed in screw thread.Its lower end can be connected by rapid-acting coupling 33 with the fluid pressure line of workplace.Joint 33 inner chambers have high pressure O RunddichtringO.This valve is made of feed liquor valve body 31, housing screw 29, cylindrical spring 28, steel ball 34, unidirectional valve pocket 35, joint 33, spacer sleeve 39, push rod 42, push rod handwheel 43, nut 40, plain washer 41.All the other are O RunddichtringO 30,32,36,38,44 and back-up ring 37.
B. hand piston pump: be the supercharger of this tester, or claim supercharge pump.It is positioned at the right of main casing 5, promptly chews 2 opposite sides with fluid injection.This pump comprises pump case 23, piston 24, connecting rod 15, bearing pin 16, supporting base 17, grip 18, handgrip bearing pin 19, handgrip 20 and O RunddichtringO 25,26, back-up ring 27, fixing sleeve 21, dust-proof cushion 22, split pin 49, and connects fluid retaining valve and the feed liquor retaining valve that cover 8 axis is provided with from top to bottom along tensimeter constitute in main casing 5.Other part that constitutes fluid retaining valve and feed liquor retaining valve is identical, and can adopt the part in addition of pillar triple-use valve, and they are volute spring 10, gland nut 11, steel ball 12, unidirectional valve pad 13, stop collar 14.
C. main casing 5: five through holes are arranged on main casing 5, and bottom repeatedly kicks into the liquid valve, and the top connects tensimeter 6, and the left side connects liquid injecting mouth 2, and the right connects the pump case 23 of supercharger, and the back connects the pressure relief vent of pressure-release valve, and feed liquor, fluid retaining valve are housed in the shell.
D. tensimeter 6: be 0～60MPa, φ 100,1.5 class precisions, and 8 in the cover of connecing of main casing 5 blocks the gauge stand 7 of tensimeter 6 with U-shaped card 51, so that the replacing of tensimeter 6, turn to and do not disconnect.All the other are table pad 50, back-up ring 52, O RunddichtringO 9,53.
E. fluid injection chews 2: be positioned at main casing 5 left sides, and orthogonal with the axis that connects cover 7, fluid and feed liquor retaining valve of tensimeter 6.Can be connected on the triple-use valve of hydraulic prop during pressure measurement, and chew 2 outer lock sleeves 3 pinnings with being enclosed within fluid injection.1,4 is the O RunddichtringO.
First f. pressure-release valve: be positioned at main casing 5 rear sides, connect cover 8 axis and fluid injection with fluid pressure table 6 and chew on the perpendicular direction of 2 axis.This valve is made of pressure-release valve bolt 45, pressure-release valve handwheel 46, release valve pad 47, release valve casing 48, as shown in Figure 2.Pressure relief vent can be blocked sealing by tightening handwheel 46, or unscrew handwheel 46 and make tensimeter 6 releases.
Using method: the feed liquor valve of tester bottom is connected by rapid-acting coupling with the fluid pressure line of workplace, tightens pressure-release valve handwheel 46 clockwise pressure relief vent is blocked.Liquid injecting mouth 2 is inserted on the pillar triple-use valve, lock lock sleeve 3, push rod is transferred the possession of in push rod handwheel 43 dextrorotations of feed liquor valve backs down the steel ball 34 of feed liquor valve, two retaining valves through hand piston pump, one the tunnel enters the pillar triple-use valve through liquid injecting mouth 2, make the pillar chamber pressure reach setting load, the damping hole of another road through connecing cover 8 enters the pressure that tensimeter 6 indication pillars are rising, and reaches the setting load value.Write down this value.After the pillar chamber pressure reaches setting load, back and forth press piston 24 with handgrip 20 pressure in the pillar is progressively increased, until the yield load that reaches pillar, safety valve is opened, and pillar is in the strong attitude of constant-resistance.Simultaneously, the overhang of the post alive of different pressures value correspondence is measured in segmentation, perform record, push rod handwheel 43 is rotated counterclockwise allows steel ball 34 under the effect of spring 28, close the feed liquor valve, unclamp pressure-release valve bolt 45 then, the pressure of tensimeter 6 is dropped to zero, unload the mensuration that tester carries out next pillar again.
The mensuration that pillar post alive stretches out value: make mark at live post and post cylinder interphase place.If the interphase place has the coal dust also can the coal dust marking, measure the post overhang of living with steel ruler.For example, the force value corresponding to 15,20,25,30, during 35MPa, measuring overhang respectively is L1, L2, L3, L4, L5, performs record, so that draw the supporting family curve.
Utilize the force value of measuring and the post overhang of living, can determine specified setting load, the unlatching value of safety valve, the close value of pillar, and actual setting load.And can carry out the sealing property that pillar is tested in voltage stabilizing at the scene.Draw the performance diagram and the stiffness curve figure of support system.
By the mensuration that pressure changes, measure the decrement of top board and bed course thereof simultaneously, can obtain the integral stiffness of top board and bed course thereof.According to of the influence of difference back of the body topping material to top board bed course integral stiffness, select suitable back of the body topping material, the backguy distance of adjacent two posts is measured post apart from whether qualified.
By the mensuration that pressure changes, measure the decrement of base plate and bed course thereof simultaneously, can obtain the integral stiffness of base plate and bed course thereof, replace the floor pressure ratio Air holder instrument to use.Also can measure the unidirectional compression strength value of base frame coal, the soft end or the deliquescing of base plate inundation, and the base frame coal or the one-tenth-value thickness 1/10 at the thin pseudo-end.And can be according to the floorage of the size of unidirectional compression strength value apolegamy post footwear.
Embodiment 2: Fig. 3,5,6 shows the inner structure and the profile of embodiment two.It has saved the feed liquor valve, and at the porch of feed liquor retaining valve changing-over feed liquor valve body 54, and connects a fluid reservoir 60 by feed liquor valve body 54.This fluid reservoir 60 is a drum shape, be positioned at outer, the opposite side of main casing 5 with pressure-release valve, fluid reservoir 60 is connected with the dish 56 of main casing 5 by fluid reservoir 60, and dish 56 usefulness nuts 58 are fastened on the lower end of feed liquor valve body 54, and the cap 59 of a circle is stamped on the top of fluid reservoir 60.Both inner chambers of fluid reservoir 60 and main casing 5 communicate by coiling 56 endoporus.The emulsion that fluid reservoir is 60 li enters the inner chamber of main casing 5 by the two endoporus of dish 56, feed liquor valve body 54.Open the cap 59 of fluid reservoir, can add emulsion.55,57 is the O RunddichtringO.
The pressure-release valve of embodiment two as shown in Figure 2.All the other are identical with embodiment one.
Using method: the tester of band fluid reservoir does not connect fluid pressure line.And want earlier fluid reservoir to be irritated with fluid injection gun to go up emulsion.With the fluid injection of this tester chew 2 insert triple-use valves and lock lock sleeve 3 after, directly back and forth press piston 24 with handgrip 20, the pillar inner chamber is injected in the emulsion supercharging of 60 li of fluid reservoirs, tensimeter 6 indications are risen rapidly by zero, when liquid filling pressure is more some than post internal pressure summary height, promptly back down the retaining valve of pillar triple-use valve, the temporary transient voltage stabilizing of tensimeter 6 indications is slowly risen, and this value is the anchorage force value of pillar.Continue to press piston 24 then and open up to safety valve, pillar is in the constant-resistance state.Different pressures and corresponding post overhang alive are measured in segmentation, perform record, unclamp the bolt of pressure-release valve then, and pressure is dropped to zero, unload the mensuration that instrument carries out next pillar.
It is not too identical with embodiment 1 to survey setting load, needs with fluid injection gun the pillar setting prop to be supported earlier and reaches setting load, measure as stated above with this tester then.And do not replace the fluid injection gun fluid injection.
Be with the tester characteristics of fluid reservoir form to be, do not rely on the workplace fluid pressure line, can use in the ground maintenance workshop.All the other usages are identical with embodiment 1.
Claims (6)
1, a kind of outside injection type hydraulic pillar characteristic tester, have that fluid pressure table, fluid injection are chewed, annular lock sleeve, it is characterized in that: a. has can chew the supercharger of (2) fluid injection supercharging in pillar by fluid injection, and b. has the pressure-release valve that communicates with tensimeter (6) oil circuit on main casing (5).
2, outside injection type hydraulic pillar characteristic tester according to claim 1, it is characterized in that said supercharger is a manual ram pump, the pump case of this pump (23), piston (24), connecting rod (15), handgrip (20) part all are positioned at outside the main casing (5), chew (2) opposite side with fluid injection, and the feed liquor retaining valve of this pump, fluid retaining valve are positioned at main casing (5).
3, outside injection type hydraulic pillar characteristic tester according to claim 2, it is characterized in that the feed liquor retaining valve inlet end of said hand piston pump is connected to the feed liquor valve of manual control, the inlet end of this feed liquor valve has the rapid-acting coupling (33) that connects with the workplace fluid pressure line.
4, outside injection type hydraulic pillar characteristic tester according to claim 3, the feed liquor valve that it is characterized in that the feed liquor retaining valve inlet end of said hand piston pump, handwheel (43) push rod (42) that drive, that can back down steel ball (34) is arranged, be enclosed within the outer spacer sleeve (39) of push rod, be pressed on steel ball (34) on the unidirectional valve pocket (35) by cylindrical spring (28), the housing screw (29) of dress cylindrical spring (28), feed liquor valve body (31) and seal that it is outside.
5, outside injection type hydraulic pillar characteristic tester according to claim 2 is characterized in that the feed liquor retaining valve inlet end of said hand piston pump is connected to fluid reservoir (60).
6, outside injection type hydraulic pillar characteristic tester according to claim 4, it is characterized in that said fluid reservoir (60) is drum shape, be positioned at outer, the opposite side of main casing (5) with pressure-release valve, the inner chamber of the inner chamber of fluid reservoir (60) and main casing (5), the endoporus of the dish (56) by fluid reservoir (60) communicates, dish (56) is fastened on feed liquor valve body (54) lower end with nut (58), and a cap (59) is stamped on the top of fluid reservoir (60).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91231837 CN2108917U (en) | 1991-12-19 | 1991-12-19 | Single hydraulic prop property measurer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91231837 CN2108917U (en) | 1991-12-19 | 1991-12-19 | Single hydraulic prop property measurer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2108917U true CN2108917U (en) | 1992-07-01 |
Family
ID=4936998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91231837 Granted CN2108917U (en) | 1991-12-19 | 1991-12-19 | Single hydraulic prop property measurer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2108917U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101762354B (en) * | 2008-12-22 | 2014-06-25 | 施耐德电器工业公司 | Apparatus for measuring a magnitude |
| CN109443634A (en) * | 2018-12-25 | 2019-03-08 | 四川优机实业股份有限公司 | Laminated structure is surveyed in sealing |
-
1991
- 1991-12-19 CN CN 91231837 patent/CN2108917U/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101762354B (en) * | 2008-12-22 | 2014-06-25 | 施耐德电器工业公司 | Apparatus for measuring a magnitude |
| CN109443634A (en) * | 2018-12-25 | 2019-03-08 | 四川优机实业股份有限公司 | Laminated structure is surveyed in sealing |
| CN109443634B (en) * | 2018-12-25 | 2024-06-04 | 四川优机实业股份有限公司 | Sealing pressure measuring structure |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |