CN206270393U - A kind of flame-proof mine oscillograph - Google Patents
A kind of flame-proof mine oscillograph Download PDFInfo
- Publication number
- CN206270393U CN206270393U CN201621426963.9U CN201621426963U CN206270393U CN 206270393 U CN206270393 U CN 206270393U CN 201621426963 U CN201621426963 U CN 201621426963U CN 206270393 U CN206270393 U CN 206270393U
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- China
- Prior art keywords
- oscillograph
- wire
- sensing device
- device further
- binding post
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Abstract
The utility model belongs to the technical field of oscillograph, and in particular to a kind of flame-proof mine oscillograph；The technical problem of solution is：One kind is provided and disclosure satisfy that explosion-proof frequency converter underground trials are used, and the oscillograph with explosion prevention function；The technical scheme for using for：A kind of flame-proof mine oscillograph, including enclosure body, the junction box with cover plate and the control cabinet with door closure are provided with the enclosure body, wire-incoming chamber, wire cavity, the first sensing device further and the second sensing device further are provided with the junction box, first sensing device further is arranged in wire-incoming chamber, second sensing device further is arranged in wire cavity, disconnecting switch, contactor, transformer, control board and oscillograph are provided with the control cabinet, blocking device and cable entry are provided with the enclosure body；The utility model is applied to colliery field.
Description
Technical field
The utility model belongs to the technical field of oscillograph, and in particular to a kind of flame-proof mine oscillograph.
Background technology
Current motor drives industry, and frequency converter is increasingly popularized.Because it has, speed adjustable range is wider, be not powered on surge
Electric current, power factor and it is in hgher efficiency the advantages of, be widely used in Electric Traction, frequency conversion drive and numerical control field.Underground coal mine
The use of explosion-proof frequency converter not only solves blower fan, the dragging of pump class even load, and it is defeated to solve ribbon conveyer, scraper plate
Send the control of the occasions such as the low-speed bigs such as machine, winch, elevator.
The frequency converter of high efficient and reliable is designed, engineer needs the PWM of the voltage waveform that output is driven using oscillograph observation
Changing Pattern；Catch motor terminal overvoltage；Driving voltage waveform changes；Power cell quality of output signals；Catch power supply electricity
The related test parameters such as pressure fluctuation.Current explosion-proof frequency converter is that engineer exists as the design of universal frequency converter, all
Completed in ground experiment room.But the use environment of explosion-proof frequency converter is in underground, the power supply quality of underground, protected mode, use
The running environment such as electric load are not inconsistent completely with ground experiment environment, then explosion-proof frequency converter is gone into the well and uses the shadow for miscellaneous equipment
Sound, self-operating situation and fault rate engineer are unpredictable.Directly be placed on for ground frequency converter explosion-proof by many manufacturers
Gone into the well in shell work, as a result frequency converter burn in the frequent outlet power cell in underground, the situation such as fault alarm, protection misoperation,
The especially normal safe production of influence mine.Therefore explosion-proof frequency converter reliably runs the substantial amounts of underground examination of needs in downhole safety
Test, experiment work be unable to do without oscillograph measurement, but at present experiment oscillograph be all it is universal can only be in ground experiment
Office work, does not possess explosion prevention function, it is impossible to used in underground.
Utility model content
The utility model overcomes the shortcomings of that prior art is present, and technical problem to be solved is：There is provided one kind can expire
Sufficient explosion-proof frequency converter underground trials are used, and the oscillograph with explosion prevention function.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is：A kind of flame-proof mine oscillograph,
Including enclosure body, the junction box with cover plate and the control cabinet with door closure, the wiring are provided with the enclosure body
Wire-incoming chamber, wire cavity, the first sensing device further and the second sensing device further are provided with case, first sensing device further is arranged on inlet wire
In chamber, second sensing device further is arranged in wire cavity, be provided with the control cabinet disconnecting switch, contactor, transformer,
Control board and oscillograph, are provided with blocking device and cable entry in the enclosure body；
The cable entry is electrically connected by cable with one end of inlet wire binding post in the wire-incoming chamber, described
The other end of inlet wire binding post is electrically connected with one end of disconnecting switch, the other end of the disconnecting switch and the one of contactor
End electrical connection, the other end of the contactor is electrically connected with the primary side of transformer, the secondary side difference of the transformer
It is electrically connected with the input of control board, oscillograph, the output end of the oscillograph and outlet wiring in the wire cavity
One end electrical connection of terminal, the other end and the test lead of the outlet binding post are electrically connected, the disconnecting switch
Operation handle is connected with blocking device.
First sensing device further includes the first binding post, and first binding post is electrically connected with higher level's feeding switch
Connect.
Second sensing device further includes the second binding post, and second binding post is electrically connected with control board.
Also include nine core binding posts in the wire-incoming chamber and wire cavity.
First sensing device further and the second sensing device further include travel switch or Hall element.
The door closure uses parallel-moving type quick opening mechanism.
The utility model has the advantages that compared with prior art：
1st, a kind of flame-proof mine oscillograph of the utility model, including enclosure body, is provided with junction box in enclosure body
And control cabinet, it is provided with junction box in wire-incoming chamber, wire cavity, the first sensing device further and the second sensing device further, control cabinet and is set
There are disconnecting switch, contactor, transformer, control board and oscillograph；Compare with existing oscillograph, carry out Explosion-proof Design,
With explosion prevention function, safety regulations in coal mine requirement is met, can be used as frequency converter test measurement instrument in underground.
2nd, the energization of oscillograph must be full in contactor and disconnecting switch and disconnecting switch and door closure in the utility model
Could be realized after sufficient latching relation, safety regulations in coal mine and explosion -- proof regulations requirement are met safely.
3rd, the door closure in the utility model uses parallel-moving type quick opening mechanism, is easy to the switch of door closure, and door closure not under
It is heavy, the damage that the shiny surface between door closure and enclosure body is caused is effectively prevent, so as to ensure that the sealing and peace of switch
Quan Xing, improves the service life and production efficiency of flame-proof mine oscillograph.
Brief description of the drawings
The utility model is described in more detail below in conjunction with the accompanying drawings；
Fig. 1 is front view of the present utility model；
Fig. 2 is rearview of the present utility model；
Fig. 3 is circuit connection diagram of the present utility model；
In figure：1 is enclosure body, and 2 is junction box, and 21 is cover plate, and 22 is wire-incoming chamber, and 221 is inlet wire binding post, and 23 are
Wire cavity, 231 is outlet binding post, and 24 is the first sensing device further, and 241 is the first binding post, and 25 is the second sensing device further,
251 is the second binding post, and 3 is control cabinet, and 31 is door closure, and 32 is disconnecting switch, and 33 is contactor, and 34 is transformer, and 35 are
Control board, 36 is oscillograph, and 4 is blocking device, and 5 is cable entry, and 6 is test lead, and 7 is that higher level's feed is opened
Close.
Specific embodiment
To make the purpose, technical scheme and advantage of the utility model embodiment clearer, below will be to the utility model
Technical scheme in embodiment is clearly and completely described, it is clear that described embodiment is a part of the present utility model
Embodiment, rather than whole embodiments；Based on the embodiment in the utility model, those of ordinary skill in the art are without work
Go out the every other embodiment obtained under the premise of creative work, belong to the scope of the utility model protection.
As shown in Figure 1 and Figure 2, set in a kind of flame-proof mine oscillograph, including enclosure body 1, the enclosure body 1
There are the junction box 2 with cover plate 21 and the control cabinet 3 with door closure 31, the cover plate 21 includes the first cover plate and the second cover plate,
The cover plate 21 is fixed by screws on junction box 2, wire-incoming chamber 22, wire cavity 23, first is provided with the junction box 2 and is felt
The sensing device further 25 of device 24 and second is surveyed, the top of the wire-incoming chamber 22 is provided with the first cover plate, and the top of the wire cavity 23 is provided with
Also include nine core binding posts in second cover plate, the wire-incoming chamber 22 and wire cavity 23, first sensing device further 24 is arranged on
On flange in wire-incoming chamber 22, second sensing device further 25 is arranged in wire cavity 23, and isolation is provided with the control cabinet 3
Switch 32, contactor 33, transformer 34, control board 35 and oscillograph 36, blocking device is provided with the enclosure body 1
4 and cable entry 5.
As shown in figure 3, the cable entry 5 passes through cable and inlet wire binding post 221 in the wire-incoming chamber 22
One end is electrically connected, and the other end of the inlet wire binding post 221 is electrically connected with one end of disconnecting switch 32, described to keep apart
Close 32 other end to be electrically connected with one end of contactor 33, the other end of the contactor 33 is electric with the primary side of transformer 34
Gas is connected, and the secondary side of the transformer 34 is electrically connected with the input of control board 35, oscillograph 36 respectively, described to show
The output end of ripple device 36 is electrically connected with one end of outlet binding post 231 in the wire cavity 23, the outlet binding post
231 other end is electrically connected with test lead 6, and the output end of the oscillograph 36 is the test probe of oscillograph, it is described every
The operation handle for leaving pass 32 is connected with blocking device 4.
First sensing device further 24 includes the first binding post 241, and first binding post 241 is opened with higher level's feed
Close 7 to electrically connect, higher level's feeding switch 7 is powered off when opening the first cover plate, it is ensured that wire-incoming chamber 22 is powered off；Second sensing device further 25
Including the second binding post 251, second binding post 251 is electrically connected with control board 35, when opening the second cover plate, control
Contactor 33 in case processed 3 is powered off, it is ensured that wire cavity 23 is powered off；The sensing device further 25 of first sensing device further 24 and second is wrapped
Include travel switch or Hall element.
Contactor 33 sets up electric blocking relation with disconnecting switch 32, and disconnecting switch 32 is with closing for being set in enclosure body 1
Locking device 4 sets up mechanical latching relation, it is ensured that door closure 31, only ability power transmission after the closing of door closure 31 can be just opened after power-off,
Safety meets safety regulations in coal mine and explosion -- proof regulations requirement.
The door closure 31 uses parallel-moving type quick opening mechanism, by using parallel-moving type quick opening mechanism, is easy to door closure 31
Switch, and door closure 31 does not sink, and effectively prevent the damage that the shiny surface between door closure 31 and enclosure body 1 is caused, so that
The sealing and security of switch are ensure that, the service life and production efficiency of flame-proof mine oscillograph is improve.
Specifically, the low-voltage-powered cable in underground enters entering in wire-incoming chamber 22, with wire-incoming chamber 22 by cable entry 5
One end of line binding post 221 is connected, and the other end of inlet wire binding post 221 is kept apart by cable connection disconnecting switch 32
Close and 32 be connected with the primary side of transformer 34 by contactor 33, the secondary side of transformer 34 respectively with control board 35, show
The input of ripple device 36 is connected, and the output end of oscillograph 36 passes through one end of cable and outlet binding post 231 in wire cavity 23
It is connected, the other end and the test lead 6 of outlet binding post 231 are electrically connected, and cable entry 5 and wire-incoming chamber 22 ensure that
The requirement of explosion proof of the power supply wiring of oscillograph 36, wire cavity 23 ensure that the requirement of explosion proof of the probe wiring of oscillograph 36, control
Case 3 ensure that the explosion-proof of the electrical equipments such as disconnecting switch 32, contactor 33, transformer 34, control board 35 and oscillograph 36
It is required that；Test cell in oscillograph 36 completes the test of the various parameters of frequency converter 34, such as the electric voltage exception response of frequency converter 34
Characteristic test, frequency anomaly response characteristic are tested, PWM debugging is tested, driving pulse is measured, power device switching loss is measured,
The current fluctuation measurement of dc bus, the measurement of the quality of power supply；Underground 660V or 1140V voltage is changed into oscillography by transformer 34
220V voltages needed for device 36；Contactor 33 ensures the break-make of the power supply of oscillograph 36；Disconnecting switch 32 and contactor 33 are constituted electrically
Locking meets requirement of explosion proof.
A kind of flame-proof mine oscillograph of the utility model, compares with existing oscillograph, carries out Explosion-proof Design, with anti-
Quick-fried function, meets safety regulations in coal mine requirement, can be used as frequency converter test measurement instrument in underground, the mine explosion-suppression
Point chamber design of type oscillograph wire connection cavity and wire cavity, meets power-off and uncaps requirement, facilitates the wiring of explosion-proof oscillograph.It is different from general
Logical oscillograph, the flame-proof mine oscillograph, with explosion prevention function, can be used in underground as explosion-proof frequency converter measurement.
Finally it should be noted that：Various embodiments above is only used to illustrate the technical solution of the utility model, rather than it is limited
System；Although being described in detail to the utility model with reference to foregoing embodiments, one of ordinary skill in the art should
Understand：It can still modify to the technical scheme described in foregoing embodiments, or to which part or whole
Technical characteristic carries out equivalent；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly
The scope of each embodiment technical scheme of type.
Claims (6)
1. a kind of flame-proof mine oscillograph, including enclosure body（1）, it is characterised in that：The enclosure body（1）Inside it is provided with
With cover plate（21）Junction box（2）With with door closure（31）Control cabinet（3）, the junction box（2）Inside it is provided with wire-incoming chamber
（22）, wire cavity（23）, the first sensing device further（24）With the second sensing device further（25）, first sensing device further（24）It is arranged on
Wire-incoming chamber（22）It is interior, second sensing device further（25）It is arranged on wire cavity（23）It is interior, the control cabinet（3）Inside it is provided with isolation
Switch（32）, contactor（33）, transformer（34）, control board（35）And oscillograph（36）, the enclosure body（1）On set
It is equipped with blocking device（4）And cable entry（5）；
The cable entry（5）By cable and the wire-incoming chamber（22）Interior inlet wire binding post（221）One end it is electric
Connection, the inlet wire binding post（221）The other end and disconnecting switch（32）One end electrical connection, the disconnecting switch
（32）The other end and contactor（33）One end electrical connection, the contactor（33）The other end and transformer（34）One
Secondary side electrical connection, the transformer（34）Secondary side respectively with control board（35）, oscillograph（36）Input electricity
Gas is connected, the oscillograph（36）Output end and the wire cavity（23）Interior outlet binding post（231）One end electrically connect
Connect, the outlet binding post（231）The other end and test lead（6）Electrical connection, the disconnecting switch（32）Operation
Handle and blocking device（4）Connection.
2. a kind of flame-proof mine oscillograph according to claim 1, it is characterised in that：First sensing device further（24）
Including the first binding post（241）, first binding post（241）With higher level's feeding switch（7）Electrical connection.
3. a kind of flame-proof mine oscillograph according to claim 1, it is characterised in that：Second sensing device further（25）
Including the second binding post（251）, second binding post（251）With control board（35）Electrical connection.
4. a kind of flame-proof mine oscillograph according to claim 1, it is characterised in that：The wire-incoming chamber（22）And outlet
Chamber（23）Inside also include nine core binding posts.
5. a kind of flame-proof mine oscillograph according to claim 1, it is characterised in that：First sensing device further（24）
With the second sensing device further（25）Include travel switch or Hall element.
6. a kind of flame-proof mine oscillograph according to claim 1, it is characterised in that：The door closure（31）Using translation
Formula quick opening mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621426963.9U CN206270393U (en) | 2016-12-23 | 2016-12-23 | A kind of flame-proof mine oscillograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621426963.9U CN206270393U (en) | 2016-12-23 | 2016-12-23 | A kind of flame-proof mine oscillograph |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206270393U true CN206270393U (en) | 2017-06-20 |
Family
ID=59048053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621426963.9U Expired - Fee Related CN206270393U (en) | 2016-12-23 | 2016-12-23 | A kind of flame-proof mine oscillograph |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206270393U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109362195A (en) * | 2018-10-22 | 2019-02-19 | 天津沃翔科技有限公司 | A kind of mine permissible type control host |
-
2016
- 2016-12-23 CN CN201621426963.9U patent/CN206270393U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109362195A (en) * | 2018-10-22 | 2019-02-19 | 天津沃翔科技有限公司 | A kind of mine permissible type control host |
| CN109362195B (en) * | 2018-10-22 | 2023-12-15 | 天津沃翔科技有限公司 | Mining safety type control host |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170620 Termination date: 20181223 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |