CN210371419U - Digital chain tensioning device for scraper conveyor - Google Patents
Digital chain tensioning device for scraper conveyor Download PDFInfo
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- CN210371419U CN210371419U CN201921195769.8U CN201921195769U CN210371419U CN 210371419 U CN210371419 U CN 210371419U CN 201921195769 U CN201921195769 U CN 201921195769U CN 210371419 U CN210371419 U CN 210371419U
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- scraper conveyor
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Abstract
The utility model discloses a digital chain tightening device for a scraper conveyor, in particular to the field of chain tightening driving of coal mine scraper conveyors, which comprises a valve group assembly, wherein the end part of the valve group assembly is provided with a motor assembly, and the end part of the motor assembly is provided with a gearbox; the valve group assembly comprises a balance valve, a shuttle valve and a sequence valve, and the side surface of the valve group assembly is provided with a first connecting port, a second connecting port and an oil discharging port; the gearbox comprises an output gear and a clutch; the motor assembly includes a brake, a hydraulic motor, and a rotational speed sensor. The utility model discloses be connected the gearbox directly with hydraulic motor, the integrated setting of valves assembly is on hydraulic motor simultaneously, wholly need not the pipeline when using, simple structure simultaneously, is convenient for install, maintain and arrange, and the use is safer, and hydraulic motor's rotational speed is passed the monitoring record back electrical system by speed sensor through monitoring signal and is taken notes, is convenient for monitor the rotational speed of hydraulic motor during operation again.
Description
Technical Field
The utility model relates to a scraper conveyor chain tightening drive field is scraped in the colliery, more specifically says, the utility model relates to a scraper conveyor is with digital chain tightening device.
Background
The scraper is an important transportation device in the coal transportation process, is mainly used for a long-wall coal mining working face and undertakes transportation tasks, when the scraper is installed underground, a closed-loop chain which correspondingly penetrates through a machine head chain wheel, the lower part of a middle groove and a machine tail chain wheel and is connected through a connecting chain ring to form a closed structure is paved, meanwhile, the loosened closed-loop chain directly causes abrasion of the chain and a middle plate of the middle groove due to mutual friction, so that noise is generated, the normal operation of workers is influenced, the chain is also caused to fall off due to excessive abrasion and looseness, the normal operation of the device is influenced slightly, the transportation efficiency is reduced, corresponding safety accidents are possibly caused seriously, therefore, the closed-loop chain needs to be tensioned after being installed and paved, and the closed-loop chain also needs to be tensioned after the scraper is used for a certain time, the chain tensioning is carried out firstly, then redundant circular ring chains are cut off, and then the chain is connected by the chain connecting ring again, so that the whole tensity of the chain of the scraper conveyor meets the requirement.
In prior art, fluid or emulsion that will come from the control valve is discharged into hydraulic motor, it is rotatory to drive the gearbox input shaft again, output gear drives the tight sprocket gear of scraper blade machine reducing gear box after the speed reduction, finally transmit and carry out tight chain to the scraper chain, foretell scraper conveyor is with tight chain device still has the weak point in the in-service use process, its motor, by the tube coupling between external valves and the pump station, the structure is complicated, cause inconvenience to installation and maintenance and piping arrangement, and increased possible leakage point, the rotational speed of motor during operation can't be monitored simultaneously.
Disclosure of Invention
In order to overcome prior art's above-mentioned defect, the embodiment of the utility model provides a scraper conveyor is with digital tight chain device, be connected the gearbox directly with hydraulic motor, the integrated setting of valves assembly is on hydraulic motor simultaneously, wholly need not the pipeline when using, simple structure simultaneously, be convenient for install, the maintenance and arrange, the use is safer, hydraulic motor's rotational speed is recorded through monitoring signal by speed sensor, return electrical system with the monitoring record again, be convenient for monitor hydraulic motor during operation's rotational speed.
In order to achieve the above object, the utility model provides a following technical scheme: a digital chain tensioning device for a scraper conveyor comprises a valve group assembly, wherein a motor assembly is arranged at the end part of the valve group assembly, and a gearbox is arranged at the end part of the motor assembly;
the valve group assembly comprises a balance valve, a shuttle valve and a sequence valve, and the side surface of the valve group assembly is provided with a first connecting port, a second connecting port and an oil discharging port;
the gearbox comprises an output gear and a clutch;
the motor assembly includes a brake, a hydraulic motor, and a rotational speed sensor.
In a preferred embodiment, the valve block assembly is integrally arranged on the hydraulic motor.
In a preferred embodiment, the balance valve, the shuttle valve and the sequence valve are arranged in communication, and the shuttle valve is located between the balance valve and the sequence valve.
In a preferred embodiment, the rotation speed sensor is fixedly arranged on the hydraulic motor, and the hydraulic motor and the rotation speed sensor are connected through monitoring signals.
In a preferred embodiment, the oil discharge port is communicated with the sequence valve.
In a preferred embodiment, the first connection port and the second connection port are respectively arranged to communicate with two oil outlets of the pump station.
In a preferred embodiment, the balancing valve is provided in parallel on both sides of the first connection port and the second connection port.
In a preferred embodiment, the clutch is located on one side of the output gear, and the output gear is connected to the rotation end of the hydraulic motor through the input gear.
The utility model discloses a technological effect and advantage:
1. the utility model has the advantages that the gearbox is directly connected with the hydraulic motor, and the valve group assembly is integrated on the hydraulic motor, so that the whole body is used without a pipeline, and meanwhile, the structure is simple, the installation, the maintenance and the arrangement are convenient, and the use process is safer;
2. the utility model discloses a be equipped with speed sensor, relieve the braking when the stopper, when hydraulic motor work began to rotate simultaneously, hydraulic motor's rotational speed was recorded through monitoring signal by speed sensor, during transmitting the monitoring record back electrical system again, was convenient for monitor the rotational speed of hydraulic motor during operation.
Drawings
Fig. 1 is a schematic top view of the overall structure of the present invention.
Fig. 2 is a schematic diagram of a structure of a gearbox end face of the present invention.
Fig. 3 is a schematic diagram of the valve group assembly connection of the present invention.
The reference signs are: the hydraulic control system comprises a brake 1, a valve group assembly 2, a gearbox 3, a hydraulic motor 4, a rotating speed sensor 5, a motor assembly 6, an output gear 7, a gearbox clutch 8, a balance valve 9, a shuttle valve 10, a sequence valve 11, a first connecting port 12, a second connecting port 13 and an oil discharging port 14.
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.
The utility model provides a digital chain tightening device for a scraper conveyor, which comprises a valve group assembly 2, wherein a motor assembly 6 is arranged at the end part of the valve group assembly 2, and a gearbox 3 is arranged at the end part of the motor assembly 6;
the valve group assembly 2 comprises a balance valve 9, a shuttle valve 10 and a sequence valve 11, and the side surface of the valve group assembly 2 is provided with a first connecting port 12, a second connecting port 13 and an oil discharging port 14;
the gearbox 3 comprises an output gear 7 and a clutch 8;
the motor assembly 6 comprises a brake 1, a hydraulic motor 4 and a rotating speed sensor 5;
the valve bank assembly 2 is integrated on the hydraulic motor 4;
the balance valve 9, the shuttle valve 10 and the sequence valve 11 are communicated, and the shuttle valve 10 is positioned between the balance valve 9 and the sequence valve 11;
the oil discharge port 14 is communicated with the sequence valve 11;
the first connecting port 12 and the second connecting port 13 are respectively communicated with two oil outlets of the pump station;
the balance valve 9 is connected in parallel to two sides of the first connecting port 12 and the second connecting port 13;
the clutch 8 is located on one side of the output gear 7, and the output gear 7 is connected with the rotation end of the hydraulic motor 4 through an input gear.
As shown in fig. 1 to 3, the embodiment specifically is: the gearbox 3 is directly connected with the hydraulic motor 4, meanwhile, the valve group assembly 2 is integrally arranged on the hydraulic motor 4, a first connecting port 12 and a second connecting port 13 at the valve group assembly 2 are connected with two oil outlets of a pump station, when oil or emulsion enters from the first connecting port 12 and then flows back to the pump station from the second connecting port 13, or enters from the second connecting port 13 and then flows back to the pump station from the first connecting port 12, the shuttle valve 10 is used for leading the oil at the high-pressure ends at two sides of the motor into the sequence valve 11, when the oil pressure exceeds the spring pressure at the other side of the sequence valve 11, the valve rod can be pushed to move, so that the high-pressure oil enters the brake 1, at the moment, the brake 1 can be released, the hydraulic motor 4 can rotate, when the first connecting port 12 and the second connecting port 13 are simultaneously connected with oil, at the moment, the oil from the shuttle valve 10 has no pressure, and the, the brake 1 is directly connected with the oil discharging port 14, the brake 1 is in a braking state at the moment, so that the hydraulic motor 4 cannot rotate, the safety of the process of a loading and unloading chain can be ensured, the balance valve 9 is connected with the two sides of the first connecting port 12 and the second connecting port 13 in parallel, the rotating speed of the hydraulic motor 4 is limited and the hydraulic motor 4 is prevented from reversing, the safety of the process of the loading and unloading chain is further ensured, a pipeline is not needed when the whole brake is used, and meanwhile, the brake is simple in structure, convenient to install, maintain and arrange, and the use process is safer.
The rotating speed sensor 5 is fixedly arranged on the hydraulic motor 4, and the hydraulic motor 4 is connected with the rotating speed sensor 5 through monitoring signals.
As shown in fig. 1 and 3, the embodiment specifically includes: when the brake 1 is released from braking and the hydraulic motor 4 starts to rotate during working, the rotating speed of the hydraulic motor 4 is recorded by the rotating speed sensor 5 through monitoring signals, and the monitoring records are transmitted back to the electric control system for monitoring and displaying, so that the rotating speed of the hydraulic motor 4 during working is integrally monitored conveniently.
The utility model discloses the theory of operation:
referring to the attached drawings 1-3 of the specification, a gearbox 3 is directly connected with a hydraulic motor 4, a valve group assembly 2 is integrally arranged on the hydraulic motor 4, a first connecting port 12 and a second connecting port 13 at the valve group assembly 2 are connected with two oil outlets of a pump station, when oil or emulsion enters from the first connecting port 12 and then flows back to the pump station from the second connecting port 13, or enters from the second connecting port 13 and then flows back to the pump station from the first connecting port 12, a shuttle valve 10 is used for leading oil at high-pressure ends at two sides of the motor into a sequence valve 11, when the oil pressure exceeds the spring pressure at the other side of the sequence valve 11, a valve rod can be pushed to move, so that the high-pressure oil enters a brake 1, at the moment, the brake 1 can be released, the hydraulic motor 4 can rotate, when the first connecting port 12 and the second connecting port 13 are connected with oil, at the moment, the oil coming out from the, the spool of the sequence valve 11 is in zero position, the brake 1 is directly connected with the oil discharge port 14, the brake 1 is in a braking state at the moment, so that the hydraulic motor 4 cannot rotate, the safety of the chain loading and unloading process can be ensured, the balance valve 9 is connected with the two sides of the first connecting port 12 and the second connecting port 13 in parallel and is used for limiting the rotating speed of the hydraulic motor 4 and preventing the hydraulic motor 4 from reversing, and the safety of the chain loading and unloading process is further ensured;
referring to the attached figures 1 and 3 of the specification, when the brake 1 is released and the hydraulic motor 4 starts to rotate, the rotating speed of the hydraulic motor 4 is recorded by the rotating speed sensor 5 through monitoring signals, and the monitoring records are transmitted back to the electric control system for monitoring and displaying.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;
and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a chain device is tightened with digital to scraper conveyor, includes valves assembly (2), its characterized in that: a motor assembly (6) is arranged at the end part of the valve group assembly (2), and a gearbox (3) is arranged at the end part of the motor assembly (6);
the valve group assembly (2) comprises a balance valve (9), a shuttle valve (10) and a sequence valve (11), and the side surface of the valve group assembly (2) is provided with a first connecting port (12), a second connecting port (13) and an oil discharging port (14);
the gearbox (3) comprises an output gear (7) and a clutch (8);
the motor assembly (6) comprises a brake (1), a hydraulic motor (4) and a rotating speed sensor (5).
2. The digital chain tightening device for the scraper conveyor as claimed in claim 1, wherein: the valve group assembly (2) is integrally arranged on the hydraulic motor (4).
3. The digital chain tightening device for the scraper conveyor as claimed in claim 1, wherein: the balance valve (9), the shuttle valve (10) and the sequence valve (11) are communicated, and the shuttle valve (10) is located between the balance valve (9) and the sequence valve (11).
4. The digital chain tightening device for the scraper conveyor as claimed in claim 1, wherein: the rotating speed sensor (5) is fixedly arranged on the hydraulic motor (4), and the hydraulic motor (4) is connected with the rotating speed sensor (5) through monitoring signals.
5. The digital chain tightening device for the scraper conveyor as claimed in claim 1, wherein: the oil discharge port (14) is communicated with the sequence valve (11).
6. The digital chain tightening device for the scraper conveyor as claimed in claim 1, wherein: the first connecting port (12) and the second connecting port (13) are respectively communicated with two oil outlets of the pump station.
7. The digital chain tightening device for the scraper conveyor as claimed in claim 1, wherein: the balance valve (9) is arranged on two sides of the first connecting port (12) and the second connecting port (13) in parallel.
8. The digital chain tightening device for the scraper conveyor as claimed in claim 1, wherein: the clutch (8) is positioned on one side of the output gear (7), and the output gear (7) is connected with the rotating end of the hydraulic motor (4) through the input gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921195769.8U CN210371419U (en) | 2019-07-28 | 2019-07-28 | Digital chain tensioning device for scraper conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921195769.8U CN210371419U (en) | 2019-07-28 | 2019-07-28 | Digital chain tensioning device for scraper conveyor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210371419U true CN210371419U (en) | 2020-04-21 |
Family
ID=70246886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921195769.8U Active CN210371419U (en) | 2019-07-28 | 2019-07-28 | Digital chain tensioning device for scraper conveyor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210371419U (en) |
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2019
- 2019-07-28 CN CN201921195769.8U patent/CN210371419U/en active Active
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