CN203903375U - Detection circuit of pull rope switch set in conveying belt system - Google Patents
Detection circuit of pull rope switch set in conveying belt system Download PDFInfo
- Publication number
- CN203903375U CN203903375U CN201420329444.5U CN201420329444U CN203903375U CN 203903375 U CN203903375 U CN 203903375U CN 201420329444 U CN201420329444 U CN 201420329444U CN 203903375 U CN203903375 U CN 203903375U
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- switch
- pull
- pull rope
- belt system
- pull switch
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Abstract
The utility model discloses a detection circuit of a pull rope switch set in a conveying belt system. A starting control circuit of the conveying belt system comprises a power source, a main switch, the pull rope switch set and a relay, the pull rope switch set is provided with a plurality of pull rope switches which are in series connection in sequence, the detection circuit is provided with a first normally-closed type switch, and the first normally-closed type switch is in series connection between one end of a coil of the relay and the other end of the pull rope switch set. The detection circuit further comprises an indictor and a first normally-opened type switch, the indicator is used for indicating whether the pull rope switches are good or bad, one end of the indictor is connected with the other end of the pull rope switch set, one end of the first normally-opened type switch is connected with the other end of the indicator, and the other end of the first normally-opened type switch is connected with a negative electrode of the power source. According to the technical scheme, under the state that the conveying belt system shuts down, whether the pull rope switches are good or bad can be detected, and damage caused by frequent starting to a conveying belt motor is reduced.
Description
Technical field
The utility model relates to belt system, specifically, relates to the testing circuit of belt system medium pulling rope switches set.
Background technology
Along with the demand of long-distance transportation, the load-transfer device length of belt system is elongated gradually, and what have reaches 1000 meters of left and right, therefore this kind of belt system is called to ultra-long conveying band system.In ultra-long conveying band system; in order effectively to control the conveyer of this system, shut down; length direction along load-transfer device is furnished with the pull switch group (or being called pull switch loop) being formed by a plurality of pull switches that are mutually connected in series, and in reality, the number of pull switch can reach more than 60.Pull switch group is connected in series in major loop (controlling the loop that conveyer is shut down or started shooting) by a main switch, a relay switch.When needs conveyer is shut down; such as load-transfer device (or being called belt), run into when the accident such as tear, skid or the person run into injury and need promptly to make conveyer to shut down; now by 1 pull switch in pull switch group is pulled open; relay switch dead electricity disconnects; whole piece belt is shut down, and conveyer is shut down.
Because the quality of pull switch is directly connected to the safety of the person and equipment, so need regularly to the quality of pull switch, detect.In prior art, the method for check pull switch quality is that shutdown way detects the quality of pull switch by opening belt, pulling pull switch.The method wastes time and energy, and frequent starting belt has serious loss to load-transfer device driving system, load-transfer device self, starts in addition the power consumption of load-transfer device motor.
Summary of the invention
In order to address the above problem, the utility model embodiment provides a kind of testing circuit of belt system medium pulling rope switches set, and the startup control circuit of described belt system comprises: power supply, main switch, pull switch group and relay, described pull switch group has a plurality of pull switches that are connected in series successively, one end of described main switch is connected with the positive pole of described power supply, the other end of described main switch is connected with one end of described pull switch group, the other end of described pull switch group is connected with one end of the coil of described relay, the other end of described coil is connected with the negative pole of described power supply, the open contact of described relay is connected with the start end of the load-transfer device motor of described belt system, described testing circuit has: the first closed type switch, described the first closed type switch is connected in series between one end of described coil and the other end of described pull switch group, indicating device, is used to indicate the quality of described pull switch, and one end of described indicating device is connected with the other end of described pull switch group, and the first open type switch, described first one end of open type switch and the other end of described indicating device are connected, and described first other end of open type switch and the negative pole of described power supply are connected.
In testing circuit as above, preferably, described indicating device is bulb.
In testing circuit as above, preferably, described indicating device is speech player, one end of the key that one end of described indicating device is described speech player, the other end of the key that the other end of described indicating device is described speech player.
In testing circuit as above, preferably, described relay is intermediate relay.
The beneficial effect that the technical scheme that the utility model embodiment provides is brought is:
Pass through testing circuit; when the quality of each pull switch in pull switch group detects; can under belt system stopped status, carry out; reduced by frequent starting and operated the harm bringing to load-transfer device motor, and can to the quality of each pull switch of pull switch group, detect online.
Accompanying drawing explanation
The structural representation of the testing circuit of a kind of belt system medium pulling rope switches set that Fig. 1 provides for the utility model embodiment;
Wherein, in figure, nomenclature is as follows:
11 main switches, 12 first closed type switches, 13 first open type switches,
2 pull switch groups, 21 pull switches, 31 coils, 4 indicating devices.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model embodiment is described in further detail.
Belt system plays very important effect in transportation field of articles; therefore more and more higher to its security requirement; especially for the load-transfer device with overlength length; such as running into when tearing, skidding and can make the load-transfer device motor stopping of belt system by operation pull switch reaching the load-transfer device of 1000 meters of left and right (or being called belt), to avoid that life and equipment are caused to safety misadventure.As can be seen here, the quality of pull switch is most important.
Given this, and in order online the quality of a plurality of pull switches in pull switch group to be detected, referring to Fig. 1, the utility model embodiment provides a kind of testing circuit of belt system medium pulling rope switches set, and it comprises: the first closed type switch 12, indicating device 4 and the first open type switch 13.One end of the first closed type switch 12 is electrically connected to one end of pull switch group 2, and the other end of the first closed type switch 12 is electrically connected to one end of the coil 31 of the relay of the startup control circuit of belt system.Indicating device 4 is used to indicate the good or bad of pull switch, and its one end is electrically connected to one end of pull switch group 2, and the other end is electrically connected to one end of the first open type switch 13.The other end of the first open type switch is connected with the negative electricity that starts the power supply of control circuit.Wherein, pull switch group 2 (or being called pull switch loop) is connected in series and forms successively by a plurality of pull switches 21; for example; reach in the belt system of load-transfer device of 1000 meters of left and right thering is length; need arrange that more than 60 pull switches 21 can make in time load-transfer device motor stopping to realize when causing danger situation along the length direction of load-transfer device; one end of pull switch group 2 can be the head end of the mutual a plurality of pull switches that are connected in series successively, and the other end of pull switch group 2 is the end of the mutual a plurality of pull switches that are connected in series successively.
Above-mentioned startup control loop is for controlling the startup of load-transfer device motor, and it comprises: power supply, main switch 11, pull switch group 2 and relay; One end of main switch 11 is connected with the positive pole of power supply (or live wire L), the other end of main switch 11 is connected with one end of pull switch group 2, the other end of pull switch group 2 is connected with one end of the coil of relay 31, the other end of coil 31 is connected with the negative pole of power supply (or zero line N), and the open contact of relay is connected with the start end of load-transfer device motor.While starting control loop application, press main switch 11, each pull switch of pull switch group 2 is in closure state, now the coil 31 of relay electric, make open contact closed, and then make the start end of load-transfer device motor charged to start.
When application testing circuit detects pull switch quality, press main switch 11, disconnect the first closed type switch 12, pressing the first open type switch 13 makes the first open type switch 13 in closed (conducting) state, by power supply, main switch 11, pull switch group 2, indicating device and the first open type switch 13, form loop, now indicating device obtains electric, then pull open a pull switch 21, if indicating device 4 power-off, show that this pull switch 21 is good, can normally work, otherwise this pull switch 21 is bad.So, when each pull switch of pull switch group is detected, under the state that can shut down in belt system, carry out, reduced by frequent starting and operated the harm bringing to load-transfer device motor.
In practice, indicating device 4 can be bulb, and while pulling open pull switch, bulb is become and extinguished state and show that pull switch is good from illuminating state, otherwise be bad, whether testing staff changes to judge the quality of pull switch by observing bulb light on and off state.
In other embodiment, indicating device can be speech player, and one end of the key of speech player is connected with the other end of pull switch group 2, and the other end of the key of speech player is electrically connected to one end of the first open type switch 13.While pulling open pull switch, speech player becomes and stops playing voice status from playing voice status, show that pull switch is good, otherwise be bad, testing staff is by hearing whether default voice do not change to judge the quality of pull switch with hearing default voice status.
In order effectively to control the startup of load-transfer device motor, relay is preferably intermediate relay.
It should be noted that, the master cock arranging in testing circuit comprises: the first closed type switch and the first open type switch, in order to facilitate testing staff's operation and regular job personnel's work, only have when detecting and just need to operate the first closed type switch and the first open type switch, (load-transfer device is normally worked in routine, do not detect) time, the increase because of testing circuit has not increased control step (as: opening or closing switch operation).In other embodiment, the first closed type switch can be replaced by the second open type switch, the first open type switch can be replaced by the second closed type switch, while needing to start control loop work, press the second open type switch, make its closure, with conducting, start control loop and press the second closed type switch, make its disconnection; When application testing circuit detects, make the second open type switch in off-state, the second closed type switch can complete the detection to pull switch in closure state.
In sum, the beneficial effect of the utility model embodiment is as follows:
Pass through testing circuit; when the quality of each pull switch in pull switch group detects; can under belt system stopped status, carry out; reduced by frequent starting and operated the harm bringing to load-transfer device motor, and can to the quality of each pull switch of pull switch group, detect online.
As known by the technical knowledge, the utility model can be realized by other the embodiment that does not depart from its Spirit Essence or essential feature.Therefore, above-mentioned disclosed embodiment, with regard to each side, is all casehistory, is not only.All changes within the scope of the utility model or within being equal to scope of the present utility model are all included in the utility model.
Claims (4)
1. a testing circuit for belt system medium pulling rope switches set, the startup control circuit of described belt system comprises: power supply, main switch, pull switch group and relay; Described pull switch group has a plurality of pull switches that are connected in series successively, one end of described main switch is connected with the positive pole of described power supply, the other end of described main switch is connected with one end of described pull switch group, the other end of described pull switch group is connected with one end of the coil of described relay, the other end of described coil is connected with the negative pole of described power supply, the open contact of described relay is connected with the start end of the load-transfer device motor of described belt system, it is characterized in that: described testing circuit has:
The first closed type switch, described the first closed type switch is connected in series between one end of described coil and the other end of described pull switch group;
Indicating device, is used to indicate the quality of described pull switch, and one end of described indicating device is connected with the other end of described pull switch group; And
The first open type switch, described first one end of open type switch and the other end of described indicating device are connected, and described first other end of open type switch and the negative pole of described power supply are connected.
2. testing circuit according to claim 1, is characterized in that, described indicating device is bulb.
3. testing circuit according to claim 1, it is characterized in that, described indicating device is speech player, one end of the key that one end of described indicating device is described speech player, the other end of the key that the other end of described indicating device is described speech player.
4. testing circuit according to claim 1, is characterized in that, described relay is intermediate relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420329444.5U CN203903375U (en) | 2014-06-19 | 2014-06-19 | Detection circuit of pull rope switch set in conveying belt system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420329444.5U CN203903375U (en) | 2014-06-19 | 2014-06-19 | Detection circuit of pull rope switch set in conveying belt system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203903375U true CN203903375U (en) | 2014-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420329444.5U Expired - Fee Related CN203903375U (en) | 2014-06-19 | 2014-06-19 | Detection circuit of pull rope switch set in conveying belt system |
Country Status (1)
| Country | Link |
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| CN (1) | CN203903375U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110095713A (en) * | 2018-01-31 | 2019-08-06 | 上海二十冶建设有限公司 | The detection method of the travel switch group of driving is directly contacted by mechanical trip |
-
2014
- 2014-06-19 CN CN201420329444.5U patent/CN203903375U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110095713A (en) * | 2018-01-31 | 2019-08-06 | 上海二十冶建设有限公司 | The detection method of the travel switch group of driving is directly contacted by mechanical trip |
| CN110095713B (en) * | 2018-01-31 | 2021-10-01 | 上海二十冶建设有限公司 | Method for detecting travel switch group driven by mechanical travel direct contact |
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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: 20141029 Termination date: 20160619 |
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| CF01 | Termination of patent right due to non-payment of annual fee |