CN218402326U - Tensile force reduction protection device for underground belt conveyor - Google Patents
Tensile force reduction protection device for underground belt conveyor Download PDFInfo
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- CN218402326U CN218402326U CN202222839791.XU CN202222839791U CN218402326U CN 218402326 U CN218402326 U CN 218402326U CN 202222839791 U CN202222839791 U CN 202222839791U CN 218402326 U CN218402326 U CN 218402326U
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Abstract
The utility model discloses a belt feeder tensile force decline protection device in pit, including motor, first choke valve, liquid accuse check valve, first pressure transmitter, second pressure transmitter, temperature level gauge, accumulator, overflow valve and tensioning sports car, the one end of tensioning sports car is provided with wire rope, wire rope's other end fixedly connected with tensioning hydraulic cylinder, the one end of first choke valve and liquid accuse check valve has the hand-operated directional control valve through the pipeline intercommunication. The utility model discloses an effect of first pressure transmitter and second pressure transmitter has solved the current belt feeder tensile force decline protection device in use and after taking place tensile force decline protection, can not carry out automatic pressure compensation to the tensioning hydro-cylinder of belt feeder, makes the safety circuit of the control system of in service belt feeder fall the electricity, causes the heavy load of belt feeder to park or the belt feeder is disconnected the area, influences the problem of belt feeder safe operation and safety in production.
Description
Technical Field
The utility model relates to a belt feeder technical field specifically is a belt feeder tensile force decline protection device in pit.
Background
The belt conveyor is a belt conveyor for short, and has the advantages of fixed type, movable type, simple structure and high efficiency. A continuous conveyor machine for carrying material and pulling elements in a flexible conveyor belt. An endless conveyor belt is looped around the drive rollers and the direction-changing rollers. The upper and lower branches between the two rollers are supported by a plurality of carrier rollers. The materials are placed on the upper branch, and the conveying belt and the materials are dragged to run by utilizing the friction force between the driving roller and the belt. The conveying device is suitable for conveying bulk materials and finished articles in horizontal and inclined directions, and can also be used in a production line for certain process operations. The structure is simple, the work is stable and reliable, the adaptability to materials is strong, the conveying capacity is large, the power consumption is low, and the application is wide.
At present, the types of the underground belt conveyor tension reduction protection devices are more, but the existing belt conveyor tension reduction protection devices cannot automatically supplement pressure to a tension oil cylinder of a belt conveyor after tension reduction protection occurs, so that a safety loop of a control system of the belt conveyor in operation is powered off, heavy-load stopping of the belt conveyor or belt breakage of the belt conveyor are caused, and safe operation and safe production of the belt conveyor are influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a belt feeder tensile force decline protection device in pit possesses the advantage of automatic pressure compensation, has solved the present belt feeder tensile force decline protection device in use and after taking place tensile force decline protection, can not carry out automatic pressure compensation to the tensioning hydro-cylinder of belt feeder, makes the safety circuit of the control system of belt feeder in service fall the electricity, causes the belt feeder heavy load to park or the belt feeder is taken absolutely, influences the problem of belt feeder safe operation and safety in production.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a belt feeder tensile force decline protection device in pit, includes motor, first choke valve, liquid accuse check valve, first pressure transmitter, second pressure transmitter, temperature level gauge, accumulator, overflow valve and tensioning sports car, the one end of tensioning sports car is provided with wire rope, wire rope's other end fixedly connected with tensioning hydraulic cylinder, the one end of first choke valve and liquid accuse check valve has the hand-operated directional control valve through the pipeline intercommunication, and the first choke valve and the liquid accuse check valve other end pass through pipeline and tensioning hydraulic cylinder intercommunication, first pressure transmitter passes through pipeline and tensioning hydraulic cylinder intercommunication, second pressure transmitter output electric connection has the switch, and the input of first pressure transmitter and second pressure transmitter has programmable control box through wire electric connection, and programmable control box's input electric connection has the starter to the starter passes through wire and motor electric connection.
Preferably, the temperature liquid level meter is communicated with a pipeline at one end of the hydraulic control reversing valve.
Preferably, the energy storage device is respectively communicated with the first pressure transmitter and the second pressure transmitter through pipelines.
Preferably, one end of the motor is provided with an oil pump, one end of the oil pump is communicated with a one-way valve through a pipeline, the other end of the one-way valve is communicated with a fine oil filter through a pipeline, and the other end of the fine oil filter is communicated with a safety valve through a pipeline.
Preferably, one end of the overflow valve is communicated with a hydraulic control reversing valve, and the hydraulic control reversing valve is communicated with a second throttling valve through a pipeline.
Compared with the prior art, the beneficial effects of the utility model are as follows:
1. the operation state of the original belt conveyor is changed, the original fixed tensioning mode is changed into an automatic tensioning mode, the starting process of the belt conveyor is stable, the belt breakage accident is avoided, the investment of the belt conveyor is reduced, and the production cost is saved.
2. Belt feeder tensile force decline protection device can mend automatically and press, has solved because of tensile force decline protection action back, causes the problem that the belt feeder heavily loaded was shut down, reduces production time's influence, improves work efficiency, promotes economic benefits.
3. The improvement of the tension reduction protection device of the underground belt conveyor enables the tension reduction protection of the belt conveyor to be more perfect and practical, and meets the requirement of mine safety production.
Drawings
FIG. 1 is a schematic view of a downhole belt conveyor tension drop protection device.
In the figure: 1. an electric motor; 2. an oil pump; 3. a one-way valve; 4. a fine oil filter; 5. a safety valve; 6. a manual directional control valve; 7. a first throttle valve; 8. tensioning a hydraulic oil cylinder; 9. a hydraulic control check valve; 10. a first pressure transmitter; 11. an energy storage device; 12. a second pressure transmitter; 13. a switch; 14. a temperature level meter; 15. a second throttle valve; 16. a hydraulic control directional control valve; 17. an overflow valve; 18. tensioning the sports car; 19. a steel cord.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, a protection device for tension force drop of a downhole belt conveyor comprises a motor 1, a first throttle valve 7, a hydraulic control one-way valve 9, a first pressure transmitter 10, a second pressure transmitter 12, a temperature liquid level meter 14, an energy accumulator 11, an overflow valve 17 and a tensioning carriage 18, wherein one end of the tensioning carriage 18 is provided with a steel wire rope 19, the other end of the steel wire rope 19 is fixedly connected with a tensioning hydraulic oil cylinder 8, one ends of the first throttle valve 7 and the hydraulic control one-way valve 9 are communicated with a manual reversing valve 6 through a pipeline, the other ends of the first throttle valve 7 and the hydraulic control one-way valve 9 are communicated with the tensioning hydraulic oil cylinder 8 through a pipeline, the first pressure transmitter 10 is communicated with the tensioning hydraulic oil cylinder 8 through a pipeline, the output end of the second pressure transmitter 12 is electrically connected with a switch 13, the input ends of the first pressure transmitter 10 and the second pressure transmitter 12 are electrically connected with a programmable control box through a lead, the input end of the programmable control box is electrically connected with a starter, and the starter is electrically connected with the motor 1 through a lead.
The temperature liquid level meter 14 is communicated with a pipeline at one end of a hydraulic control reversing valve 16.
The energy storage 11 is in communication with the first pressure transmitter 10 and the second pressure transmitter 12, respectively, via pipes.
One end of the motor 1 is provided with an oil pump 2, one end of the oil pump 2 is communicated with a one-way valve 3 through a pipeline, the other end of the one-way valve 3 is communicated with a fine oil filter 4 through a pipeline, and the other end of the fine oil filter 4 is communicated with a safety valve 5 through a pipeline.
One end of the overflow valve 17 is communicated with a hydraulic control reversing valve 16, and the hydraulic control reversing valve 16 is communicated with a second throttling valve 15 through a pipeline.
When the device is used, a KXT127 type mining explosion-proof and intrinsic safety type programmable control box is installed at a power distribution point of a belt conveyor head, two sets of GDP20 type mining explosion-proof type pressure transmitters are installed on a check valve 3 of a hydraulic station, then feedback signals of a first pressure transmitter 10 and a second pressure transmitter 12 and a starter of a belt conveyor tensioning device are all connected to corresponding control points of the belt conveyor tensioning device control box according to a wiring diagram, signals of the first pressure transmitter 10 and the second pressure transmitter 12 are connected into a centralized control box of the belt conveyor by using 485 communication lines, a pressure signal of a tensioning oil cylinder is transmitted to a ground centralized control room by using a belt conveyor centralized control ring network, an emergency stop control point of the belt conveyor tensioning device control box is connected with a control point of a safety loop on the belt conveyor control box, a set of tensioning force reduction mechanical locking protection device is installed behind a tensioning trolley 18 of the belt conveyor to protect the connected safety loop, upper limit and lower limit parameters of the pressure transmitter controlled on the belt conveyor tensioning force reduction protection device control box are adjusted, and the tensioning force reduction protection device is debugged and tested after the installation is completed.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a belt feeder tensile force decline protection device in pit, includes motor (1), first choke valve (7), hydraulically controlled check valve (9), first pressure transmitter (10), second pressure transmitter (12), temperature level gauge (14), accumulator (11), overflow valve (17) and tensioning sports car (18), its characterized in that: one end of tensioning sports car (18) is provided with wire rope (19), the other end fixedly connected with tensioning hydraulic cylinder (8) of wire rope (19), the pipeline intercommunication has hand-operated directional control valve (6) for the one end of first choke valve (7) and liquid accuse check valve (9), and the pipeline and tensioning hydraulic cylinder (8) intercommunication are passed through to first choke valve (7) and liquid accuse check valve (9) the other end, first pressure transmitter (10) communicate through pipeline and tensioning hydraulic cylinder (8), second pressure transmitter (12) output electric connection has switch (13), and the input of first pressure transmitter (10) and second pressure transmitter (12) has programmable control box through wire electric connection, and programmable control box's input electric connection has the starter to the starter passes through wire and motor (1) electric connection.
2. The tension reduction protection device for the underground belt conveyor as claimed in claim 1, wherein: the temperature liquid level meter (14) is communicated with a pipeline at one end of the hydraulic control reversing valve (16).
3. The tension reduction protection device for the underground belt conveyor as claimed in claim 1, wherein: the energy accumulator (11) is respectively communicated with the first pressure transmitter (10) and the second pressure transmitter (12) through pipelines.
4. The tension reduction protection device for the underground belt conveyor as claimed in claim 1, wherein: one end of the motor (1) is provided with an oil pump (2), one end of the oil pump (2) is communicated with a one-way valve (3) through a pipeline, the other end of the one-way valve (3) is communicated with a fine oil filter (4) through a pipeline, and the other end of the fine oil filter (4) is communicated with a safety valve (5) through a pipeline.
5. The tension reduction protection device for the underground belt conveyor as claimed in claim 1, wherein: one end of the overflow valve (17) is communicated with a hydraulic control reversing valve (16), and the hydraulic control reversing valve (16) is communicated with a second throttling valve (15) through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222839791.XU CN218402326U (en) | 2022-10-27 | 2022-10-27 | Tensile force reduction protection device for underground belt conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222839791.XU CN218402326U (en) | 2022-10-27 | 2022-10-27 | Tensile force reduction protection device for underground belt conveyor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218402326U true CN218402326U (en) | 2023-01-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222839791.XU Active CN218402326U (en) | 2022-10-27 | 2022-10-27 | Tensile force reduction protection device for underground belt conveyor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218402326U (en) |
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2022
- 2022-10-27 CN CN202222839791.XU patent/CN218402326U/en active Active
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