CN209582713U - One kind being used for pipeline chain conveyor anti-fall off chain protective device - Google Patents

Abstract

One kind being used for pipeline chain conveyor anti-fall off chain protective device; the reliable and stable operation of pipeline chain conveyor equipment long period can be effectively protected; promote the single machine service life; improve entire transportation system reliability; ensure only pay very low operating cost and maintenance cost after user; it is made of sprocket wheel, chain, chain drum and chain wheel cover; detectable chain is set by the sprocket wheel and leaves or have the detection unit for the trend of leaving; the detection signal of the detection unit is sent to the control circuit of the driving unit of sprocket wheel, and controls the start and stop of the driving unit.The detection unit is made of U-tube, shaft, trigger unit.

Description

One kind being used for pipeline chain conveyor anti-fall off chain protective device

Technical field

The present invention relates to one kind to be used for pipeline chain conveyor anti-fall off chain protective device.

Background technique

Pipe chain conveying equipment is a kind of mechanical conveying equipment conveyed for powder material, granule materials, it has low Many advantages, such as energy consumption, low abrasion, protection granular material, the closed environmental protection of transmission process are not in material leakage, is petrochemical industry, changes The industries such as work, plastics, chemical fibre, food, pharmacy, building materials, the energy, mining and metallurgy, metal, environmental protection provide good material and convey solution party Case.

But at present in actual use process, more problem occur is exactly de- chain problem, the reason of causing , load becomes suddenly when the entrance (such as thing of spanner, screw etc), conveying of foreign matter Change etc., it is likely to cause pipe chain that de- chain phenomenon occurs in operational process.The result that de- chain occurs is exactly system operation Interruption, due to there is no protective device, cannot the arrestment operation in time after de- chain or de- chain will occur, next The further damage for exactly causing equipment causes immeasurable loss to system.

Occur due in actual use process, unavoidably having some emergency cases at present, chain is caused to engage There is deviation, de- chain problem occurs, and exactly devise chain-drop-proof device, can be prevented at the first time during the operation of pipe chain The appearance of such case prompts abnormal phenomenon occur in personnel systems, restarts after needing investigation problem.It prevents previous It is not provided with this chain-drop-proof device, de- chain phenomenon occurs when abnormal conditions occurs in system, operating system is caused to interrupt, and More severe consequence is that, due to not having interlock, after de- chain phenomenon occurs, driving motor is still being operated, driving motor band It is in a complete mess that movable sprocket will drive chain, chain drum and the sprocket wheel itself in head to destroy.

Chain-drop-proof device used in majority pipeline chain conveyor producer is simpler and cruder at present, and reliability is also bad, or even has Many pipeline chain conveyor producers are all without this device of anti-fall off chain.This allows for pipe chain transportation system in actual use process System reliability substantially reduce, be unfavorable for long-term, reliable, the stable operation of pipe chain transportation system.

Summary of the invention

For technology above-mentioned technical problem, the present invention provides a kind of pipe chain transportation system anti-fall off chain protective device, Neng Gouyou The effect ground reliable and stable operation of protection pipe chain conveyor apparatus long period, promotes the single machine service life, improves entire transportation system reliability, Ensure only pay very low operating cost and maintenance cost after user.

The technical scheme adopted by the invention is as follows: it is made of sprocket wheel, chain, chain drum and chain wheel cover, it is characterised in that: described Detectable chain is set by sprocket wheel and leaves or have the detection unit for the trend of leaving, the detection signal of the detection unit is sent to sprocket wheel Driving unit control circuit, and control the start and stop of the driving unit.

The detection unit is made of U-tube, shaft, trigger unit.

The U-tube is arranged by the sprocket wheel, and recess faces the sprocket wheel, and is arranged symmetrically.The inside of U-tube is wide Degree is 1-2 times, preferably 1.5 times of the diameter of the chain drum.

The shaft is rotatably supported on the chain wheel cover, the affixed U-tube in shaft one end, and the other end is solid Connect the trigger unit.

Holding screw is provided between the shaft and the chain wheel cover, the holding screw can be such that the U-tube protects The frictional force that can also change between the shaft and the chain wheel cover in some initial position is held, so as to adjust described turn The degree of flexibility of axis rotation.

The link position of the shaft and the U-tube is not the mass center of the U-board, guarantee the U-tube can because The gravity of itself and be naturally held in a determining position.

The trigger unit includes triggering disk and trigger switch, and the triggering disk is one with disk jaggy, the touching Hair switch alignment is installed on the indentation, there；When the triggering disc spins, the trigger switch and the notch misplace, and make institute The switch state for stating trigger switch changes.

The trigger switch is electrically connected to the control circuit of the driving unit, and controls the start and stop of the driving unit.

It is also connected with anti-fall off chain run indicator on the trigger switch circuit, when the state of the trigger switch circuit is sent out When changing, the light on and off state of anti-fall off chain run indicator also changes.

The utility model has the advantages that the present invention can quickly be acted when de- chain will occur, and slight fluctuation bring can be prevented Maloperation guarantees steady, accurate, the reliable operating of system.

Detailed description of the invention

Fig. 1 is main view of the invention.

Fig. 2 is triggering disk and trigger switch schematic diagram of the invention.

In figure: 1- chain wheel cover, 2-U shape pipe, 3- holding screw, 4- shaft, 5- trigger disk, 6- sprocket wheel, 7- travel switch, 8- Notch.

Specific embodiment

As shown in Figure 1, 2, one kind can be effectively protected the reliable and stable operation of pipeline chain conveyor equipment long period, promote list The machine service life improves entire transportation system reliability, ensures that user need to only pay very low operating cost and maintenance cost later Pipe chain transportation system anti-fall off chain protective device, used technical solution are as follows: be made of sprocket wheel, chain, chain drum and chain wheel cover, In Detectable chain is set by sprocket wheel and leaves or have the detection unit for the trend of leaving, the detection signal of detection unit is sent to the drive of sprocket wheel The control circuit of moving cell, and the start and stop of driving unit are controlled, detection unit is made of U-tube, shaft, trigger unit.

U-tube is arranged by sprocket wheel, and recess faces sprocket wheel, and is arranged symmetrically.The inboard width of U-tube is the straight of chain drum 1-2 times of diameter, preferably 1.5 times.

Shaft is rotatably supported on chain wheel cover, the affixed U-tube in shaft one end, the affixed trigger unit of the other end.Shaft Link position with U-tube is not the mass center of U-board, guarantees that U-tube can be naturally held in one really because of the gravity of itself Fixed position.

Trigger unit includes triggering disk and trigger switch, and triggering disk is one with disk jaggy, trigger switch alignment peace Loaded on indentation, there；When triggering disc spins, trigger switch and notch misplace, and the switch state of trigger switch is made to change.Touching Hair switch is electrically connected to the control circuit of driving unit, and controls the start and stop of driving unit.Travel switch is used in trigger switch selection.

On trigger switch circuit, it is also in series with anti-fall off chain run indicator, under normal circumstances, trigger switch is in open circuit State, when triggering disk rotation, notch and trigger switch deviate, and trigger switch closure, anti-fall off chain run indicator is lighted.

The disc of pipeline chain conveyor conveying material is mounted on chain, drives chain operating as sprocket wheel rotates, And then disc operation is driven, it pushes material to advance, achievees the purpose that convey material.Chain and sprocket wheel are a teeth one when working normally What tooth engagement carried out, chain is that comparison is fixed, that is, disc also compares relative to the position of sprocket wheel relative to the position of sprocket wheel Relatively fixed, when there are abnormal conditions, chain is not engaged with the tooth on sprocket wheel normally, disc will appearance position it is inclined Difference, being arranged so that will be triggered in the protective device of disc or so, and then is transmitted on travel switch by mechanism, due to relating to And travel switch and driving motor interlocking, such motor moment can stop working, and reach the function that anti-anti-avulsion chain occurs.

The beneficial effects of the utility model are as follows:

U-tube is arranged in chain drum two sides, and on the chain wheel cover that driving unit is installed by shaft, and the other end of shaft connects It is connected to travel switch and triggering disk, any abnormal offset in the left and right of chain can all drive the offset of chain drum, and then trigger U-tube Movement, U-tube movement again will drive the rotation of shaft, and then make travel switch triggering disk rotation, such travel switch is just Will appear movement, due to travel switch with connect the control circuit of driving unit, so driving unit is caused to shut down.In addition In control system, travel switch movement, anti-fall off chain run indicator will be lighted, and abnormal, prompting operation occurs in instruction pipe chain Personnel come to check reason.

From the point of view of feedback, with this pipeline chain conveyor anti-fall off chain protective device, accessary sprocket wheel can be taken off in chain When out, the switch of the pipe chain conveying of interlocking cutting immediately, cutting driving unit operation protects the operation of equipment well, prevents More dangerous consequence occurs, and for transportation system is steady, reliably working provides safeguard, this device has also been worked as in actual use process In play a very good protection, also there is no cross wrong report phenomenon, equipment long-term operation can be effectively protected.

Claims (10)

1. one kind is used for pipeline chain conveyor anti-fall off chain protective device, it is made of sprocket wheel, chain, chain drum and chain wheel cover, feature exists In: detectable chain is set by the sprocket wheel and leaves or have the detection unit for the trend of leaving, the detection signal of the detection unit It is sent to the control circuit of the driving unit of sprocket wheel, and controls the start and stop of the driving unit.

2. according to claim 1 a kind of for pipeline chain conveyor anti-fall off chain protective device, it is characterised in that: the detection Unit is made of U-tube, shaft, trigger unit.

3. according to claim 2 a kind of for pipeline chain conveyor anti-fall off chain protective device, it is characterised in that: the U-shaped Pipe is arranged by the sprocket wheel, and recess faces the sprocket wheel, and is arranged symmetrically.

4. according to claim 3 a kind of for pipeline chain conveyor anti-fall off chain protective device, it is characterised in that: U-tube Inboard width is 1-2 times of the diameter of the chain drum.

5. according to claim 2 a kind of for pipeline chain conveyor anti-fall off chain protective device, it is characterised in that: the shaft It is rotatably supported on the chain wheel cover, the affixed U-tube in shaft one end, the affixed trigger unit of the other end.

6. according to claim 2 a kind of for pipeline chain conveyor anti-fall off chain protective device, it is characterised in that: the shaft Holding screw is provided between the chain wheel cover, the holding screw can make the U-tube be maintained at some initial bit It sets, the frictional force between the shaft and the chain wheel cover can also be changed, so as to adjust the degree of flexibility of shaft rotation.

7. according to claim 2 a kind of for pipeline chain conveyor anti-fall off chain protective device, it is characterised in that: the shaft Link position with the U-tube is not the mass center of the U-board, guarantee the U-tube can because itself gravity and nature It is maintained at a determining position.

8. according to claim 2 a kind of for pipeline chain conveyor anti-fall off chain protective device, it is characterised in that: the triggering Unit includes triggering disk and trigger switch, and the triggering disk is one with disk jaggy, and the trigger switch alignment is installed on The indentation, there；When the triggering disc spins, the trigger switch and the notch misplace, and make the switch of the trigger switch State changes.

9. according to claim 8 a kind of for pipeline chain conveyor anti-fall off chain protective device, it is characterised in that: the triggering Switch is electrically connected to the control circuit of the driving unit, and controls the start and stop of the driving unit.

10. according to claim 8 a kind of for pipeline chain conveyor anti-fall off chain protective device, it is characterised in that: the touching It is also connected with anti-fall off chain run indicator on hair switching circuit, when the state of the trigger switch circuit changes, anticreep The light on and off state of chain run indicator also changes.