CN202628125U - Mining intrinsic safety mine pressure alarming device - Google Patents
Mining intrinsic safety mine pressure alarming device Download PDFInfo
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- CN202628125U CN202628125U CN 201220045000 CN201220045000U CN202628125U CN 202628125 U CN202628125 U CN 202628125U CN 201220045000 CN201220045000 CN 201220045000 CN 201220045000 U CN201220045000 U CN 201220045000U CN 202628125 U CN202628125 U CN 202628125U
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- valve cylinder
- spring
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- alarm
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Abstract
The utility model discloses a mining intrinsic safety mine pressure alarming device comprising a barrel-like connector. One end of the connector is open and the other end of the connector is closed. A valve barrel is arranged in the open end of the barrel-like connector in a sleeved mode. The diameter of the outer wall of the valve barrel arranged inside the connector is smaller than the inner diameter of the connector. The valve barrel and the connector are in thread fit in a sealed mode at the open end of the connector. The connector and the portion of the outer wall of the valve barrel arranged on the inner side in fit sealing space form a piston valve. A piston is arranged in the valve barrel. A boss is arranged on the piston and a position of the boss is higher than that of a piston body. One end of the boss, far away from the connector and close to the open end of the connector, is provided with a spring in a sleeved mode. The barrel-like valve barrel is arranged outside the spring. The other end of the piston is arranged in a piston cavity and a shaft sleeve is sleeved outside the piston in a sliding mode. The outer side of the shaft sleeve limits and is in sliding fit with the inner wall of the valve barrel. The mining intrinsic safety mine pressure alarming device has the advantages of being convenient to process and accurate to measure, and prolonging service life.
Description
Technical field
The utility model relates to a kind of hydraulic prop pressure warning unit, is specially a kind of mine intrinsic safety type ore deposit and presses alarm.
Background technology
Mining hydraulic prop equipment (comprising hydraulic prop, cantilever support and all kinds of jack) is that the current mine work plane is guaranteed safe visual plant.Because the down-hole geologic structure is complicated, the variation naturally of ore deposit pressure pressure and the seepage phenomenon of hydraulic medium cause hydraulic prop equipment working resistance (decompression and overvoltage) unbalanced phenomena, are the main roots that causes the loosening accidents such as post and superpressure landslide etc. of top board to take place.Example: require according to the 6.1.7 clause among the coal industry standard MT/T548-1996 " hydraulic prop operating specification ": when cylinder diameter is Φ 80mm; Its working resistance is not less than 60KN; When cylinder diameter was Φ 100mm, its working resistance was not less than the 90KN working resistance.
But; Present widely used hydraulic prop product self does not possess the safety detecting alarm function to working resistance, the often too small or excessive continuous generation that causes down that abacus caves in or cause accident such as the post landslide of breaking because of overload because of working resistance, the decompression of hydraulic prop equipment or the phenomenon of superpressure; This can cause a major gene to lose support force and collapse; Perhaps because of a plurality of monomers or support force uneven distribution, thereby make the back timber slump, very easily cause human casualty accident and property loss.At present: the down-hole security staff is the generation that prevents accident; The method of being taked is: frequently to hydraulic test (example: hydraulic prop; Cantilever support etc.) support force carries out tours of inspection; Through very backward means such as rocking or beat the working resistance of pillar is checked one by one, not only can not be found timely and effectively and deal with problems, also waste great amount of time and energy simultaneously; Whether normal, therefore can't get rid of potential potential safety hazard at all if can't understand hydraulic prop equipment current working state timely at all.
The hydraulic pressure of mining hydraulic prop is bigger; Piston stress is also bigger, and big stress need be used big spring and measure, and existing piston adopts unified even cylindrical shape in addition; Even adopt the piston of path also must adopt the supporting use of big spring because of hydraulic pressure is big; It is bigger that needed big stress spring takies volume, and the checkout equipment cost is high, and transportation is used inconvenient.
Summary of the invention
For addressing the above problem, the utility model provides a kind of mine intrinsic safety type ore deposit to press alarm, and the utility model adopts and utilizes the supporting big spring of valve piston; Make the stress of warning indicator reduce, reduced piston stress, have easy to process; Measure accurately the advantage that is able to prolong application life.
For achieving the above object the following technological means of the employing of the utility model:
Alarm is pressed in a kind of mine intrinsic safety type ore deposit, comprises a plunger shaft, and plunger shaft is provided with the fuel feed hole that communicates with working solution, is provided with a piston in the plunger shaft, and said piston radial is provided with a barrier; The slide outside that piston is positioned at barrier one end is combined with and axle sleeve, the other end corresponding with barrier is arranged with spring outward; Said axle sleeve, piston and plunger shaft sealing form the topping up space, and at least one end of said piston is provided with and touches logical switch, and touch logical switch and are connected with warning circuit.
Above-mentioned alarm, described alarm comprises the tubular joint, is arranged with a valve cylinder in the tubular joint, and said valve cylinder and joint be fitted seal in the joint end, and joint, valve cylinder are positioned at the fitted seal inside part and form above-mentioned plunger shaft; Be provided with above-mentioned piston in the valve cylinder, barrier is the boss that is higher than piston only on the said piston, and boss is arranged with spring away from joint one end, and its other end is positioned at plunger shaft and its slide outside is with axle sleeve, and said axle sleeve external position limited sleeve is provided with valve cylinder; Said joint is provided with the oil filler point that is communicated with plunger shaft.
Above-mentioned alarm, described touching led to the permanent-magnet material that switch is tongue tube and correspondence.
Above-mentioned alarm, said warning circuit adopts the LED alarm lamp.
Above-mentioned alarm, said permanent-magnet material and tongue tube distance are adjustable.
Above-mentioned alarm, the threaded one end that said piston bush is equipped with spring is connected with swivel nut, and permanent-magnet material is located in the swivel nut.
Above-mentioned alarm, said tongue tube external fixation has the adjustment spring, and said adjustment spring and valve cylinder central axis be conllinear not.
Above-mentioned alarm, said axle sleeve and valve cylinder are integrated, and the spring of valve cylinder is provided with dismountable port that is used for the dismounting spring near an end of tongue tube.
Above-mentioned alarm is provided with sealing ring between axle sleeve and the valve cylinder; Be provided with sealing ring between piston and the axle sleeve.
Above-mentioned alarm, in the described alarm circuit with touch logical switch in parallel and be provided with the electrical verification switch.
The operating principle and the beneficial effect of the utility model show:
The utility model utilizes joint and valve cylinder to form plunger shaft, in plunger shaft, annotates working hydraulic pressure oil through oil filler point, and hydraulic oil touches the logical switch that touches in the alert circuit of circular to the piston effect thereby promote piston, reaches the purpose of warning.
Be the purpose that realizes that whole device volume is little; Need to adopt the form of small piston matching ring footpath little spring; But piston stress is very big; The requirement of satisfying stress for needs still is that needs use bulky spring, but bulky spring can not curl up the spring body of realizing that circle is directly little, so can't use the little spring in small piston matching ring footpath in the prior art.
The utility model is provided with barrier---boss on piston, a side of boss is arranged with spring, the sheathed axle sleeve of opposite side; Under the cooperation of axle sleeve, thereby the little piston in cross section can be set reaches stressed relatively little situation on the one hand, configurable big slightly spring of stressed on the other hand little piston opposite side; Realized that valve piston can dispose spring; And reach the better purpose of fiting effect, thereby realize that whole measurement is more accurate, the one-tenth body, the advantage that volume is little.
Logical switch is touched at least one end setting at sliding plunger, and touches logical switch to alarm circuit should be arranged: low pressure alarming loop or alarm for high voltage loop; When piston slided, the loop is not other three of corresponding hydraulic prop states originally: under-voltage, normal, overvoltage, when being provided with two simultaneously when touching logical switch, under the effect of compression spring, can distinguish corresponding under-voltage and two states of overvoltage.
Adopt the LED lamp to use as reporting to the police, in dim tunnel, a glance just can be seen the flicker of LED lamp, and the LED lamp body is long-pending little, low, the long service life of power consumption, and it is low that this device power supply is changed temporal frequency, and long service life is particularly useful for using under the coal mine.
Permanent-magnet material and tongue tube distance are adjustable, can accurately adjust and touch logical distance, thereby guarantee the alarm required precision.
Adjustment spring and valve cylinder center line be conllinear not, tongue tube is placed a side of permanent-magnet material, thereby save the space, thereby reduced the volume of whole device.
As the improvement that the utility model is created, can joint or valve cylinder be made an integral body or axle sleeve and valve cylinder are made an integral body, valve cylinder is made as demountable structure at the opposite side of axle sleeve, as the loading port of piston and spring.
Between slide unit, be provided with sealing ring, play the sealed against leakage effect.
But whether the electrical verification switch testing circuit that is provided with connects and normally connects, and whether power supply and alarm can operate as normal.
This shows that this alarm mainly is suitable for and is installed on mine individual hydraulic prop, cantilever support; Support apparatus in coal mine such as large-scale fully mechanized mining supporter; As the size of testing resistance, and when working resistance was not enough, the warning indication of output optical signal was used; In the darker environment of down-hole light, this alarm is promising obviously.The inner differential type piston drive mode that adopts of this device; Power supply adopts fluid injection to open non-contact switch circuit; The indication of reporting to the police adopts the flicker of high brightness dual-colored LED lamp to report to the police, characteristics such as have that intellectuality need not manually-operated, element is few, cost is low, simple in structure, easy for installation, low power consumption and warning are reliable directly perceived.
Description of drawings
In order to be illustrated more clearly in the application embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment that put down in writing among the application, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings;
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the electrical block diagram of the utility model.
The specific embodiment
In order to make those skilled in the art person understand the technical scheme among the application better; To combine the accompanying drawing among the application embodiment below; Technical scheme among the application embodiment is carried out clear, intactly description; Obviously, described embodiment only is the application's part embodiment, rather than whole embodiment.Based on the embodiment among the application, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all should belong to the scope of the application's protection.
As shown in Figure 1; Alarm is pressed in a kind of mine intrinsic safety type ore deposit, comprises tubular joint 1, said joint 1 one end openings, other end sealing; Be arranged with valve cylinder 6 in the openend of tubular joint 1; Valve cylinder 6 is positioned at the internal diameter of the outer diameter of joint 1 part less than joint 1, and valve cylinder 6 seals in joint 1 openend threaded engagement with joint 1, and joint 1, valve cylinder 6 outer walls are positioned at the fitted seal inside part and form a plunger shaft; Be provided with piston 5 in the valve cylinder 6; Said piston 5 is provided with the boss that is higher than piston 7; Boss promptly is arranged with spring 7 near an end of joint 1 openend away from joint 1; Outside the spring 7 is tubular valve cylinder 6, and the other end of piston 7 is positioned at plunger shaft and its slide outside is with axle sleeve 3, said axle sleeve 3 outer spacing and valve cylinder 6 inwalls that are slidingly matched.
Axle sleeve 3 is following with the limit method of valve cylinder 6, and valve cylinder 6 inwalls are shoulder hole, and outer imperial palace is little, and big position is combined with axle sleeve 3.
Said joint 1 is provided with the oil filler point that is communicated with plunger shaft; Described oil filler point can be provided with a plurality of, and it evenly is provided with along joint 1 annular.
The end thread of said piston 5 is connected with swivel nut 11, is fixed with permanent-magnet material in the swivel nut 11, is combined with two tongue tubes with permanent-magnet material, is connected with warning circuit with two tongue tubes; Said warning circuit adopts LED alarm lamp 10.
The position of two tongue tubes can be selected to install as required, perhaps is positioned at the two ends of piston such as the spring terminal that is installed in piston, as long as satisfy: when under-voltage, logical switch conduction of touching of undervoltage warning circuit and warning are only arranged; During operate as normal, neither touch logical; During overvoltage, logical switch conduction of touching of over voltage alarm circuit and warning are only arranged.
Said tongue tube is installed in a side of swivel nut 11, and it is fixed on the valve cylinder 6 through adjustment bolt 8, and swivel nut 11 place straight lines belong to not conllinear of straight lines with adjustment bolt 8, are convenient to dwindle the volume of this device.
Be provided with between axle sleeve 3 and the valve cylinder 6 between sealing ring 4, piston 5 and the axle sleeve 3 and be provided with sealing ring 12.
The outside of joint 1 is provided with O RunddichtringO 2, and the opposite side of valve cylinder 6 is provided with rubber stifled 9.
As shown in Figure 2; The parallelly connected electrical verification switch that is provided with tongue tube in the described alarm circuit; The electrical verification switch adopts electrical verification button form, and whether normally the electrical verification button is to check alarm circuit device and battery electric quantity button, and indicator lamp is luminous when pressing the button; This moment, circuit and electric weight should be normal condition, otherwise then needed check circuit or change battery.
During use; This alarm is installed on the hydraulic test column cap or post one side of living; Formed to have and just supportted the function that the interval pressure display of resistance and working resistance is reported to the police; Utilize fluid pressure to promote piston, connecting rod end is installed and permanent-magnet material (permanent magnet), and magnetic reed switch receives the effect energized of magnetic field force.Use when hydraulic test begins fluid injection (when small normal pressure is arranged in the hydraulic cylinder, the force value of operated by rotary motion greater than: 0.01-0.5Mpa), alarm switch gets into duty.
When the working resistance of hydraulic test is reduced to under-voltage (to change the working resistance that causes not enough because of leakage or geology) when interval from the normal pressure interval; Be installed in piston brace rod left end permanent magnet; Receive spring action,, make low pressure warning switch closed near the switch magnetic switch; At this moment, the flicker of low pressure indicator lamp is reported to the police.
When liquid-working-medium pressure is higher than the alarm pressure value (operate as normal Resistance Value) of setting; Be installed in the terminal permanent magnet of piston brace rod, receive spring action, touch logical tongue tube; Alarm lamp is bright, and expression this equipment this moment is in operate as normal resistance state.
The above only is the application's a preferred implementation, makes those skilled in the art can understand or realize the application.Multiple modification to these embodiment will be conspicuous to one skilled in the art, and defined General Principle can realize under the situation of spirit that does not break away from the application or scope in other embodiments among this paper.Therefore, the application will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (10)
1. alarm is pressed in a mine intrinsic safety type ore deposit, it is characterized in that comprise a plunger shaft, plunger shaft is provided with the fuel feed hole that communicates with working solution, is provided with a piston in the plunger shaft, and said piston radial is provided with a barrier; The slide outside that piston is positioned at barrier one end is combined with and axle sleeve, the other end corresponding with barrier is arranged with spring outward; Said axle sleeve, piston and plunger shaft sealing form the topping up space, and at least one end of said piston is provided with and touches logical switch, and touch logical switch and are connected with warning circuit.
2. alarm according to claim 1; It is characterized in that: described alarm comprises the tubular joint; Be arranged with a valve cylinder in the tubular joint, said valve cylinder and joint be fitted seal in the joint end, and joint, valve cylinder are positioned at the fitted seal inside part and form above-mentioned plunger shaft; Be provided with above-mentioned piston in the valve cylinder, barrier is the boss that is higher than piston only on the said piston, and boss is arranged with spring away from joint one end, and its other end is positioned at plunger shaft and its slide outside is with axle sleeve, and said axle sleeve external position limited sleeve is provided with valve cylinder; Said joint is provided with the oil filler point that is communicated with plunger shaft.
3. alarm according to claim 1 is characterized in that: described touching led to the permanent-magnet material that switch is tongue tube and correspondence.
4. alarm according to claim 1 is characterized in that: said warning circuit adopts the LED alarm lamp.
5. alarm according to claim 3 is characterized in that, said permanent-magnet material and tongue tube distance are adjustable.
6. according to claim 3 or 5 described alarms, it is characterized in that the threaded one end that said piston bush is equipped with spring is connected with swivel nut, permanent-magnet material is located in the swivel nut.
7. alarm according to claim 3 is characterized in that, said tongue tube external fixation has the adjustment spring, and said adjustment spring and valve cylinder central axis be conllinear not.
8. alarm according to claim 3 is characterized in that said axle sleeve and valve cylinder are integrated, and the spring of valve cylinder is provided with dismountable port that is used for the dismounting spring near an end of tongue tube.
9. alarm according to claim 2 is characterized in that, is provided with sealing ring between axle sleeve and the valve cylinder; Be provided with sealing ring between piston and the axle sleeve.
10. alarm according to claim 1 is characterized in that, in the described warning circuit with touch logical switch in parallel and be provided with the electrical verification switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220045000 CN202628125U (en) | 2012-02-13 | 2012-02-13 | Mining intrinsic safety mine pressure alarming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220045000 CN202628125U (en) | 2012-02-13 | 2012-02-13 | Mining intrinsic safety mine pressure alarming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202628125U true CN202628125U (en) | 2012-12-26 |
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ID=47381333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220045000 Expired - Fee Related CN202628125U (en) | 2012-02-13 | 2012-02-13 | Mining intrinsic safety mine pressure alarming device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202628125U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102654058A (en) * | 2012-02-13 | 2012-09-05 | 山东新煤机械装备股份有限公司 | Intrinsically safe mine pressure alarm for mine |
-
2012
- 2012-02-13 CN CN 201220045000 patent/CN202628125U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102654058A (en) * | 2012-02-13 | 2012-09-05 | 山东新煤机械装备股份有限公司 | Intrinsically safe mine pressure alarm for mine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20160213 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |