CN203222341U - Screw coal unloading machine - Google Patents
Screw coal unloading machine Download PDFInfo
- Publication number
- CN203222341U CN203222341U CN 201320229089 CN201320229089U CN203222341U CN 203222341 U CN203222341 U CN 203222341U CN 201320229089 CN201320229089 CN 201320229089 CN 201320229089 U CN201320229089 U CN 201320229089U CN 203222341 U CN203222341 U CN 203222341U
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- CN
- China
- Prior art keywords
- unloading machine
- rotating shaft
- coal unloading
- programmable logic
- logic controller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model provides a screw coal unloading machine. The screw coal unloading machine comprises a screwy coal unloading machine head. The coal unloading machine head is connected with a motor through a rotating shaft, the rotating shaft is provided with an encoder for calculating the number of rotation turns of the rotating shaft, and the encoder is connected with a programmable logic controller so that the programmable logic controller can calculate the stroke of the coal unloading machine head according to the number of the rotation turns. According to the scheme, the rotating shaft of the coal unloading machine head of the screw coal unloading machine is provided with the encoder, and the working principle that the encoder can convert rotation displacement into a string of digital pulse signals is utilized effectively so that the pulse signals can be connected to the programmable logic controller by the encoder. Compared with an original electromagnetic proximity switch, the screw coal unloading machine can be installed on the rotating shaft more stably and rotate with the rotating shaft, the measurement accuracy of the stroke of the coal unloading machine head can reach +/-5mm, the accuracy is improved greatly compared with the prior art, and safety accidents can be completely eradicated.
Description
Technical field
The utility model relates to field of mechanical technique, particularly relates to a kind of spiral coal unloader.
Background technology
Spiral unloading machine is the specialized equipment of unloading coal in railway carriage, unloads coal automatically in railway carriage by the spiral head of unloading coal of control system (can be Programmable Logic Controller PLC) control.
The adjustable height of the spiral head of unloading coal is 450CM in the prior art.And in order to prevent that with bad compartment the existing groove spiral unloading machine of unloading coal all is provided with a stop gear, this stop gear is that an electromagnetic type is near switch.Existing electromagnetic type is near the general the highest 2.5CM that is no more than of the detection range of switch.The head of unloading coal of existing spiral unloading machine is to rely on the chain lifting simultaneously, and its amplitude of fluctuation is about 5CM.When causing work like this electromagnetic type near switch can be accurately measuring distance, the head that is easy to cause unloading coal directly collides with the compartment bottom surface and causes equipment and compartment damage.
In order to address this is that, also adopted the mode of super sonic location in the prior art.But same very difficult accurately work in the working environment big at dust, that the light source decay is big.
Also have a kind of prior art to adopt taenidium rod-type slip iron plate to bit switch.This structure can cause big, fragile, the poor accuracy of head body vibration of unloading coal.
The utility model content
The technical problems to be solved in the utility model provides a kind ofly can measure accurate and simple and reasonable spiral coal unloader.
For solving the problems of the technologies described above, the utility model embodiment provides a kind of spiral coal unloader, comprises the spiral head of unloading coal, and the described head of unloading coal connects motor by rotating shaft; Wherein said rotating shaft is provided with coder to calculate the rotation number of turns of described rotating shaft, and described coder connects Programmable Logic Controller so that described Programmable Logic Controller calculates the stroke of the described head of unloading coal according to rotating the number of turns.
Preferred as technique scheme, described Programmable Logic Controller connect described motor with the startup of controlling described motor/stop.
The beneficial effect of technique scheme of the present utility model is as follows:
Rotating shaft at the head of unloading coal of spiral unloading machine in the such scheme installs a coder, effectively utilized the principle of work that coder can convert swing offset to the string number impulse singla.This coder can be on the received impulse signal Programmable Logic Controller like this.The utility model is compared near switch with original electromagnetic type, can more stable being installed in the rotating shaft and with rotating shaft rotate, the accurate performance of stroke of this head of unloading coal of measuring reaches ± 5mm, and the prior art of comparing has improved accuracy greatly, can stop safety misadventure.
Description of drawings
Fig. 1 is the structural representation of the spiral coal unloader of the utility model embodiment.
The specific embodiment
For making the technical problems to be solved in the utility model, technical scheme and advantage clearer, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
As shown in Figure 1, the utility model proposes a kind of spiral coal unloader, comprise the spiral head 1 of unloading coal, the described head of unloading coal connects motor 4 by rotating shaft; Wherein said rotating shaft is provided with coder 2 to calculate the rotation number of turns of described rotating shaft, and described coder 2 connects Programmable Logic Controller 3 so that described Programmable Logic Controller 3 calculates the stroke of the described head 1 of unloading coal according to rotating the number of turns.Wherein, described Programmable Logic Controller 3 connects described motor 4 with the startup of controlling described motor 4/stop.
The above is preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from principle described in the utility model; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (2)
1. a spiral coal unloader is characterized in that, comprises the spiral head of unloading coal, and the described head of unloading coal connects motor by rotating shaft; Wherein said rotating shaft is provided with coder to calculate the rotation number of turns of described rotating shaft, and described coder connects Programmable Logic Controller so that described Programmable Logic Controller calculates the stroke of the described head of unloading coal according to rotating the number of turns.
2. spiral coal unloader according to claim 1 is characterized in that, described Programmable Logic Controller connects described motor with the startup of controlling described motor/stop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320229089 CN203222341U (en) | 2013-04-29 | 2013-04-29 | Screw coal unloading machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320229089 CN203222341U (en) | 2013-04-29 | 2013-04-29 | Screw coal unloading machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203222341U true CN203222341U (en) | 2013-10-02 |
Family
ID=49249353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320229089 Expired - Fee Related CN203222341U (en) | 2013-04-29 | 2013-04-29 | Screw coal unloading machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203222341U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109335042A (en) * | 2018-11-21 | 2019-02-15 | 陈志恒 | Back and forth send boxlike particulate material box packing machine |
-
2013
- 2013-04-29 CN CN 201320229089 patent/CN203222341U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109335042A (en) * | 2018-11-21 | 2019-02-15 | 陈志恒 | Back and forth send boxlike particulate material box packing machine |
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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: 20131002 Termination date: 20150429 |
|
| EXPY | Termination of patent right or utility model |