CN216444364U

CN216444364U - Bucket elevator capable of preventing belt from slipping

Info

Publication number: CN216444364U
Application number: CN202220004215.0U
Authority: CN
Inventors: 陶冰鑫; 王玉林; 王浩; 刘忠波; 黄亚宁
Original assignee: Ningxia Building Materials Group Co ltd
Current assignee: Ningxia Building Materials Group Co ltd
Priority date: 2022-01-04
Filing date: 2022-01-04
Publication date: 2022-05-06
Anticipated expiration: 2032-01-04

Abstract

The utility model discloses a bucket elevator capable of preventing a belt from slipping, and belongs to the technical field of elevators. Including the casing, the casing is inside to be provided with the action wheel, from driving wheel and belt, the action wheel with pass through belt transmission from the driving wheel, the outside equidistant several hopper that is fixed with of belt, the action wheel all is provided with speed sensor with from the driving wheel, speed sensor is connected with the controller, the controller is connected with belt tightener. This device passes through speed sensor real-time detection action wheel and the rotational speed of following the driving wheel and compares to judge through the comparison result whether the belt skids, the controller controls belt tightener according to the comparison result and with the belt tensioning, when detecting the action wheel and the rotational speed of following the driving wheel is the same, then judges that the belt tensioning has target in place, and the controller control belt tightener stops. The belt slipping device solves the problem of belt slipping, does not need manual maintenance, saves manpower and material resources, reduces potential safety hazards, and reduces maintenance cost.

Description

Bucket elevator capable of preventing belt from slipping

Technical Field

The utility model belongs to the technical field of elevators, and particularly relates to a bucket elevator capable of preventing a belt from slipping.

Background

The bucket elevator is a continuous conveyor that vertically lifts materials by using a series of buckets uniformly and fixedly connected to an endless traction member. The working principle is as follows: the material gets into inside the lifting machine and is caught by the hopper from the feed inlet that is located the lower part, and the hopper promotes to the top along with conveyer belt or chain, and the backward upset down of top wheel is walked around to the hopper elevator, and the bucket elevator is poured the material into and is accepted the inslot. The transmission belt of the bucket elevator with belt transmission generally adopts a rubber belt and is arranged on a transmission roller at the lower part or the upper part and a turnabout roller at the upper part and the lower part; chain-driven bucket elevators are typically provided with two parallel drive chains, a pair of drive sprockets above or below the chain, and a pair of direction-changing sprockets below or above the chain. Bucket elevators are typically equipped with a housing to prevent dust from flying up in the bucket elevator.

However, after the bucket elevator in the prior art is used for a period of time, the belt is easy to loosen and slip, so that the belt pulley idles, materials are not lifted any more, a large amount of materials are accumulated at the lower part of the elevator, and the phenomenon of material blockage occurs. When taking place the putty problem, generally overhaul through the manual work, the potential safety hazard is great, and maintenance efficiency is low, with high costs. It is therefore desirable to design a device that can be quickly serviced when the belt slips.

SUMMERY OF THE UTILITY MODEL

The utility model provides a bucket elevator capable of preventing a belt from slipping, aiming at solving the problems in the prior art and comprising the following components in parts by weight: prevent that the belt from skidding, practice thrift manpower and materials, reduce the potential safety hazard, reduce the cost of overhaul.

The technical scheme adopted by the utility model is as follows:

the utility model provides a can prevent bucket elevator that belt skidded, includes the casing, and the casing is inside to be provided with the action wheel, from driving wheel and belt, the action wheel with pass through belt transmission from the driving wheel, the outside equidistant several hopper that is fixed with of belt, the action wheel all is provided with speed sensor from the driving wheel, speed sensor is connected with the controller, the controller is connected with belt overspeed device tensioner.

After adopting this technical scheme, speed sensor real-time detection action wheel and the rotational speed of following the driving wheel and contrast, when detecting the action wheel and when being greater than the setting value from the rotational speed error of driving wheel, then judge that the belt skids, the controller gives belt overspeed device tensioner with the signal transmission, belt overspeed device tensioner makes the belt tensioning, when detecting the action wheel and being the same with the rotational speed from the driving wheel, then judge that the belt has already been tensioned and target in place, controller control belt overspeed device tensioner stops, thereby solve the problem that the belt skidded, do not need the manual work to maintain, practice thrift manpower and materials, reduce the potential safety hazard, and the maintenance cost is reduced.

Preferably, the center of following the driving wheel rotates and is connected with from the driving wheel installation axle, from sliding connection in vertical direction of both ends and the casing of driving wheel installation axle, belt overspeed device tensioner is the pneumatic cylinder, the cylinder body and the casing fixed connection of pneumatic cylinder, the expansion end and the installation axle fixed connection of following the driving wheel of pneumatic cylinder.

After the preferred scheme is adopted, the hydraulic cylinder stretches and retracts to enable the driven wheel to slide along the length direction of the bucket elevator, so that the distance between the driven wheel and the driving wheel is adjusted, and the purpose of controlling the belt tensioning degree is achieved.

Preferably, the number of the belt tensioning devices is two, and the two belt tensioning devices are respectively arranged at two ends of the driven wheel mounting shaft.

After adopting this preferred scheme, can carry out better support to following the driving wheel through two belt overspeed device tensioner, can adjust the tensioning degree of belt through controlling two belt tensioner synchronous motion, when the belt off tracking, also can control one of them belt tensioner and stretch out and draw back to prevent the belt off tracking.

Preferably, the lower part of the shell is provided with a feed inlet, the upper part of the shell is provided with a discharge outlet, and the joint of the feed inlet and the shell is provided with a screen.

After the adoption of the optimal scheme, foreign matters can be prevented from entering the interior of the bucket elevator, so that the damage to components inside the elevator caused by the foreign matters is avoided.

Preferably, a material collecting pit is arranged below the driven wheel, the bottom of the material collecting pit is arranged to be an inclined plane, a screw conveyor is arranged at the lowest position of the inclined plane, a feeding end of the screw conveyor is flush with the lowest position of the material collecting pit, and a discharging end of the screw conveyor is located above the feeding hole.

After the preferable scheme is adopted, the materials leaked from the hopper can be collected in the material collecting pit, and the collected materials can be conveyed to the feeding hole through the spiral conveyor to enter the bucket conveyor again for conveying.

Further preferably, a pressure sensor is arranged at the bottom of the collecting pit close to the feeding end of the screw conveyor, the pressure sensor is connected with a controller, and the controller is connected with the screw conveyor.

After the preferred scheme is adopted, the pressure sensor can detect the quantity of the materials stacked in the material collecting pit, when the pressure sensor detects that the pressure is greater than a set upper limit value, a signal is transmitted to the controller, and the controller controls the spiral conveyor to start and conveys the materials to the feeding hole again; when the pressure sensor detects that the pressure is smaller than the set lower limit value, the signal is transmitted to the controller, and the controller controls the screw conveyer to be closed, so that the screw conveyer is prevented from idling and wasting energy.

Further preferably, the screw conveyor is fixedly connected with the side wall of the collecting pit through a connecting piece.

After adopting this preferred scheme, screw conveyer's installation is more stable.

In summary, due to the adoption of the technical scheme, the utility model has the beneficial effects that:

1. this device passes through speed sensor real-time detection action wheel and the rotational speed of following the driving wheel and compares, when detecting the action wheel and being greater than the setting value from the rotational speed error of driving wheel, then judge that the belt skids, the controller gives belt overspeed device tensioner with the signal transmission, belt overspeed device tensioner makes the belt tensioning, when detecting the action wheel and being the same from the rotational speed of driving wheel, then judge that the belt tensioning has put in place, controller control belt overspeed device tensioner stops, thereby solve the problem that the belt skidded, do not need the manual work to maintain, practice thrift manpower and materials, reduce the potential safety hazard, and the maintenance cost is reduced.

2. The hydraulic cylinder can extend and retract to enable the driven wheel to slide along the length direction of the bucket elevator, so that the distance between the driven wheel and the driving wheel is adjusted, and the purpose of controlling the belt tensioning degree is achieved.

3. Set up two belt tighteners and can carry out better support to following the driving wheel, can adjust the tensioning degree of belt through controlling two belt tighteners synchronous motion, when the belt off tracking, also can control one of them belt tightener and stretch out and draw back to correct the belt off tracking.

4. The screen cloth is arranged at the joint of the feed inlet and the shell, so that foreign matters can be prevented from entering the bucket elevator, and the damage to components inside the elevator caused by the foreign matters is avoided.

5. The below from the driving wheel is provided with the collecting pit, and the material that leaks from the hopper can be collected in the collecting pit, and the material accessible screw conveyer of collecting is carried the feed inlet and is carried in getting into bucket conveyor once more, prevents that the material from piling up.

6. The pressure sensor can detect the quantity of the materials stacked in the material collecting pit, when the pressure sensor detects that the pressure is greater than a set upper limit value, a signal is transmitted to the controller, and the controller controls the spiral conveyor to start and re-convey the materials to the feeding hole; when the pressure sensor detects that the pressure is smaller than the set lower limit value, the signal is transmitted to the controller, and the controller controls the screw conveyer to be closed, so that the screw conveyer is prevented from idling and wasting energy.

Drawings

The utility model will now be described, by way of example, with reference to the accompanying drawings, in which:

fig. 1 is a schematic cross-sectional structure of the present invention.

Reference numerals: 1-shell, 2-driven wheel, 3-driving wheel, 4-belt, 5-hopper, 6-feeding port, 7-discharging port, 8-driven wheel mounting shaft, 9-belt tensioning device, 10-collecting pit, 11-screw conveyor and 12-screen.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.

In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are usually placed in when used, and are only used for convenience of description and simplification of the description, but do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

The present invention will be described in detail with reference to fig. 1.

Example 1

The utility model provides a can prevent bucket elevator that belt skidded, as shown in figure 1, includes casing 1, and casing 1 is inside to be provided with action wheel 3, drive action wheel 3 pivoted drive arrangement (not shown in the figure), from driving wheel 2 and belt 4, action wheel 3 with pass through the transmission of belt 4 from driving wheel 2, the equidistant several hopper 5 that is fixed with in the outside of belt 4, action wheel 3 all is provided with speed sensor from driving wheel 2, speed sensor is connected with the controller, the controller is connected with belt tightener 9. The rotation speed sensor detects the driving wheel 3 and the driven wheel 2 and compares the two, and the controller judges whether the belt 4 slips or not according to the comparison and controls the belt tensioning device 9 to move. The controller described in this embodiment is a PLC controller.

In this embodiment, the center of following wheel 2 rotates and is connected with from driving wheel installation axle 8, from sliding connection in vertical direction of the both ends of driving wheel installation axle 8 and casing 1. The inside of casing 1 is provided with the slide rail, from the both ends of driving wheel installation axle 8 with slide rail sliding connection. In this embodiment, belt tightener 9 is the pneumatic cylinder, the cylinder body and the 1 fixed connection of casing of pneumatic cylinder, the expansion end and the driven wheel installation axle 8 fixed connection of pneumatic cylinder. The pneumatic cylinder can promote from the slip of driving wheel installation axle 8 on the slide rail to change from the distance of driving wheel 3 with 2, realize the tensioning of belt.

In this embodiment, the quantity of pneumatic cylinder is two, and two pneumatic cylinders set up respectively at the both ends of following wheel installation axle 8. Can carry out better support to following driving wheel 2 through two pneumatic cylinders, the tensioning degree of belt can be adjusted through the synchronous concertina movement of two pneumatic cylinders of control to the controller. When the belt is off tracking, the controller can also control one of the hydraulic cylinders to stretch and retract, and the angle of the driven wheel 2 is adjusted, so that the belt is prevented from off tracking.

The lower part of casing 1 is provided with feed inlet 6, and the upper portion of casing 1 is provided with discharge gate 7, the junction of feed inlet 6 and casing 1 is provided with screen cloth 12. The screen 12 can prevent foreign matters from entering the interior of the bucket elevator, thereby preventing the foreign matters from damaging the internal components of the elevator.

The material collecting pit is arranged below the driven wheel 2, the bottom of the material collecting pit 10 is arranged to be an inclined plane, the lowest part of the inclined plane is provided with a spiral conveyor 11, the feeding end of the spiral conveyor 11 is flush with the lowest part of the material collecting pit 10, and the discharging end of the spiral conveyor 11 is located above the feeding hole 6.

The bottom of the material collecting pit 10 is provided with a pressure sensor at the feeding end close to the screw conveyor 11, the pressure sensor is connected with a controller, and the controller is connected with the screw conveyor 11.

The spiral conveyor 11 is fixedly connected with the side wall of the collecting pit 10 through a connecting piece.

The working principle of the utility model is as follows:

the rotating speed sensor detects the rotating speeds of the driving wheel 3 and the driven wheel 2 in real time and compares the rotating speeds, when the rotating speed error of the driving wheel 3 and the rotating speed error of the driven wheel 2 are detected to be larger than a set value, the belt is judged to slip, the controller transmits a signal to the hydraulic cylinder, the hydraulic cylinder extends to enable the driven wheel 2 to slide towards the direction far away from the driving wheel 3, the distance between the driven wheel and the driving wheel is increased, and the purpose of tensioning the belt is achieved. When speed sensor detected action wheel 3 with from the rotational speed of driving wheel 2 the same, then the controller judged that belt 4 tensioning targets in place, the controller control pneumatic cylinder stops the extension to solve the problem that the belt skidded, do not need the manual work to maintain, practice thrift manpower and materials, reduce the potential safety hazard, reduce the cost of overhaul.

The pressure sensor can detect the quantity of the materials stacked in the material collecting pit 10, when the pressure sensor detects that the pressure is greater than a set upper limit value, a signal is transmitted to the controller, the controller controls the spiral conveyor 11 to start, and the materials are conveyed into the feeding hole 6 again; when the pressure sensor detects that the pressure is smaller than the set lower limit value, the signal is transmitted to the controller, the controller controls the spiral conveyor 11 to be closed, and the spiral conveyor 11 is prevented from idling and wasting energy.

Example 2

The utility model provides a can prevent bucket elevator that belt skidded, as shown in figure 1, including casing 1, casing 1 is inside to be provided with action wheel 3, drive action wheel 3 pivoted drive arrangement (not shown in the figure), from driving wheel 2 and belt 4, action wheel 3 with pass through the transmission of belt 4 from driving wheel 2, the outside of belt 4 is equidistant to be fixed with several hopper 5, action wheel 3 all is provided with speed sensor (not shown in the figure) from driving wheel 2, speed sensor is connected with the controller (not shown in the figure), the controller is connected with belt tightener 9. The rotation speed sensor detects the driving wheel 3 and the driven wheel 2 in real time and compares the two, and the controller judges whether the belt 4 slips or not according to the comparison result and controls the belt tensioning device 9 to move. The controller described in this embodiment is a PLC controller.

In this embodiment, the controller still with to 6 mouthful devices of transported substance material of feeding be connected, when detecting the belt and skid, the controller control is closed to 6 mouthful devices of transported substance material of feeding, prevents that the material from further piling up.

The center of driven wheel 2 rotates and is connected with driven wheel installation axle 8, driven wheel installation axle 8's both ends and casing 1 sliding connection in the vertical direction. In this embodiment, the belt tensioning device 9 is an electric telescopic rod or other device capable of relatively moving the driving wheel 3 and the driven wheel 2, and is not limited herein.

The lower part of casing 1 is provided with feed inlet 6, and the upper portion of casing 1 is provided with discharge gate 7, the junction of feed inlet 6 and casing 1 is provided with screen cloth 12. The screen 12 is used to prevent foreign matters from entering the interior of the bucket elevator, thereby preventing the foreign matters from damaging the internal components of the elevator.

The material collecting pit is arranged below the driven wheel 2, the bottom of the shell 1 is communicated with the material collecting pit 10, the bottom of the material collecting pit 10 is arranged to be an inclined plane, the lowest part of the inclined plane is provided with a spiral conveyer 11, the feeding end of the spiral conveyer 11 is flush with the lowest part of the material collecting pit 10, and the discharging end of the spiral conveyer 11 is located above the feeding hole 6. The materials leaked from the hopper can be collected in the material collecting pit, and the collected materials can be conveyed to the feeding hole through the spiral conveyor to enter the bucket conveyor again to be conveyed, so that the materials are prevented from being accumulated.

The above embodiments only express specific embodiments of the present application, and the description is specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, without departing from the technical idea of the present application, several changes and modifications can be made, which are all within the protection scope of the present application.

Claims

1. The utility model provides a can prevent bucket elevator that belt skidded, includes casing (1), and casing (1) is inside to be provided with action wheel (3), follows driving wheel (2) and belt (4), and action wheel (3) and follow driving wheel (2) through belt (4) transmission, the outside of belt (4) is equidistant to be fixed with several hopper (5), its characterized in that, action wheel (3) all are provided with speed sensor with follow driving wheel (2), speed sensor is connected with the controller, the controller is connected with belt overspeed device tensioner (9).

2. The bucket elevator capable of preventing a belt from slipping as claimed in claim 1, wherein a driven wheel mounting shaft (8) is rotatably connected to the center of the driven wheel (2), both ends of the driven wheel mounting shaft (8) are slidably connected to the housing (1) in the vertical direction, the belt tensioning device (9) is a hydraulic cylinder, the cylinder body of the hydraulic cylinder is fixedly connected to the housing (1), and the movable end of the hydraulic cylinder is fixedly connected to the driven wheel mounting shaft (8).

3. The bucket elevator as claimed in claim 1, wherein the number of the belt tensioners (9) is two, and two belt tensioners (9) are respectively provided at both ends of the driven wheel mounting shaft (8).

4. The bucket elevator capable of preventing belt slippage as claimed in claim 1, wherein a feed inlet (6) is formed in the lower portion of the housing (1), a discharge outlet (7) is formed in the upper portion of the housing (1), and a screen (12) is formed at the connection between the feed inlet (6) and the housing (1).

5. The bucket elevator capable of preventing a belt from slipping as claimed in claim 1, wherein a collection pit (10) is arranged below the driven wheel (2), the bottom of the collection pit (10) is provided with an inclined plane, a screw conveyor (11) is arranged at the lowest part of the inclined plane, the feeding end of the screw conveyor (11) is flush with the lowest part of the collection pit (10), and the discharging end of the screw conveyor (11) is positioned above the feeding hole (6).

6. The bucket elevator of claim 5, wherein the bottom of the collecting pit (10) is provided with a pressure sensor near the feeding end of the screw conveyor (11), and the pressure sensor is connected with a controller, and the controller is connected with the screw conveyor (11).

7. The bucket elevator for preventing belt slippage as set forth in claim 5, wherein said screw conveyor (11) is fixedly connected to the side wall of the catch pit (10) by a connecting member.