CN217674864U - Belt retracting and releasing system for continuous conveyor - Google Patents

Abstract

The utility model discloses a belt retracting and releasing system for a continuous conveyor, which comprises a belt retracting and releasing assembly and a measuring assembly, wherein the belt retracting and releasing assembly comprises a control mechanism, a driving mechanism and a winding drum mechanism, the driving mechanism drives the winding drum mechanism to perform belt retracting or releasing actions, and the control mechanism controls the working state of the driving mechanism; when the control mechanism measures the winding drum in the winding drum mechanism to wind or unwind the tape through the measuring component in real time, the speed of the conveying belt on the outmost layer of the winding drum and the diameter of the whole winding drum are positioned, and the control mechanism adjusts the working state of the driving mechanism in real time according to the measured speed of the conveying belt on the outmost layer of the winding drum and the diameter of the winding drum so as to control the conveying belt to keep constant speed running in the process of winding or unwinding the tape. The utility model provides a scheme can be applicable to continuous belt conveyor and receive and release area work, can realize the constant tape speed operation of control receipts area work in the conveyer belt, realizes receiving and releasing the reliable operation of area work especially receiving and taking work, effectively overcomes the problem that prior art exists.

Description

Belt retracting and releasing system for continuous conveyor

Technical Field

The utility model relates to a continuous belt conveyor, concretely relates to continuous belt conveyor's supporting technique.

Background

With the high-speed development of Chinese economy, the construction of successive works of projects such as electric power, colliery, metallurgy, city pipe network, water conservancy also more and more adopt TBM's tunnel construction, and in tunnel construction process, the application of continuous belt conveyor in its mucking system can realize continuous mucking.

In the rear matching technology of the continuous belt conveyor, the belt retracting and releasing device is used for supplementing a conveying belt into a belt storage bin of the continuous belt conveyor to perform belt releasing work along with the propulsion of a driving face in the construction process; after the end of the project, the conveyor belt is drawn out from the belt storage bin to perform the belt collection operation, and therefore plays an important role in the continuous belt conveyor.

Because the belt storage length of the continuous belt conveyor is generally 400-600 m, the requirement on the belt storage length is higher compared with the 100-200 m of the gate-down belt conveyor; moreover, the belt retracting and releasing capacity of the hydraulic belt winding device used in the gate-and-gate belt conveyor is too small to meet the requirements of the continuous belt conveyor.

Accordingly, the belt retracting device used on the continuous belt conveyor mainly has two types of motor-driven speed-regulating-free functional types or manual speed-regulating functional types.

The speed of the belt retracting device without the speed regulating function is constant, and when the belt retracting device runs, the load is very large particularly in the belt retracting work, so that the phenomena that the diameter of a conveying belt on a reel is very large, the linear speed of the conveying belt is very high, and the rotational inertia and the torque are very large exist, and the problems that the load of a motor is too high and a mechanical structure is difficult to bear are easily caused.

For the belt retracting and releasing device with the manual speed regulating function, the belt retracting and releasing device can manually control the rotating speed of the motor in the using process so as to reduce the linear speed of the conveying belt in the belt retracting and releasing working process. However, such operation is likely to cause unstable linear velocity of the conveying belt in belt collection, poor control precision and large impact on the system.

In addition, most of the conventional belt retracting devices for conveyors are hydraulic belt retracting devices applied to a gate belt conveyor. The hydraulic belt retracting device adopts a hydraulic motor as a power mechanism, the rotating speed of the motor is controlled manually or through an electric signal to determine the rotating speed of a winding and retracting belt reel, the rotating speed control of the hydraulic motor is not accurate, and no measure for measuring the linear speed of a conveying belt is provided, so that the rough rotating speed control is difficult to meet the requirement of a continuous conveyor on longer belt retracting and retracting length, the tension of the conveying belt cannot be controlled in the belt retracting process, and the tension which generates impact in the belt retracting process causes unsafe work.

Meanwhile, the patent application with the publication number of CN109384071A specifically discloses a steel wire rope core adhesive tape winding device for a continuous conveyor, the scheme adopts a stepless speed regulating mechanism to realize the speed-adjustable belt winding and unwinding work of a conveyor belt by utilizing the driving of an electromagnetic speed regulating motor, the speed regulating technology is old, the working efficiency is low, the speed regulating reaction time is long, and the requirement of intelligent speed regulation is difficult to meet.

SUMMERY OF THE UTILITY MODEL

To the problem that the supporting receipts and releases belting that uses of current continuous belt conveyor exists, the utility model aims to provide a receive and release belting system for continuous conveyor, it can be joined in marriage in continuous belt conveyor, and the reliability is high.

In order to achieve the purpose, the belt retracting and releasing system for the continuous conveyor comprises a belt retracting and releasing assembly, wherein the belt retracting and releasing assembly comprises a control mechanism, a driving mechanism and a winding drum mechanism, the driving mechanism drives the winding drum mechanism to perform belt retracting or releasing actions, and the control mechanism controls the working state of the driving mechanism; the winding and unwinding device further comprises a measuring assembly, the control mechanism measures the belt speed of the conveying belt on the outermost layer of the winding drum and the diameter of the coiled conveying belt when the winding drum in the winding drum mechanism carries out winding or unwinding actions in real time through the measuring assembly, and the control mechanism controls and is connected with the driving mechanism.

Furthermore, the measuring component can synchronously measure the belt speed of the conveying belt on the outermost layer of the winding drum in the winding drum mechanism and the belt winding and unwinding angle of the conveying belt.

Furthermore, the measuring assembly comprises an elastic measuring frame, a speed measuring sensor and an inclination angle sensor, the speed measuring sensor and the inclination angle sensor are arranged on the elastic measuring frame, one end of the elastic measuring frame is pre-pressed on a conveying belt on the outermost layer of a winding drum in the winding drum mechanism through elastic pressure and can synchronously form corresponding inclination angle change along with the change of the diameter of a winding conveying belt in the winding drum mechanism, and the speed measuring sensor abuts against the conveying belt on the outermost layer of the winding drum in the winding drum mechanism along with the elastic measuring frame; the inclination angle sensor can measure the inclination angle of the elastic measuring frame in real time.

Furthermore, the belt retracting device further comprises a direction changing assembly, and the direction changing assembly is matched with the winding drum mechanism to form constraint on the running direction of the conveying belt.

Furthermore, the direction-changing assembly is formed by matching a plurality of groups of direction-changing rollers.

Further, the driving mechanism is composed of at least one variable-frequency speed reducing motor.

Further, the winding drum mechanism comprises a rack, a winding drum and a bearing seat, wherein the bearing seat is arranged on the rack, and the winding drum is arranged on the rack through the bearing seat.

Furthermore, wheels matched with the rails are arranged on the rack.

The utility model provides a scheme can be applicable to continuous belt conveyor and receive and release area work, abandons conventional mode, and the automatic acquisition reel diameter signal and the fast signal of conveyer belt area of innovation to adjust motor speed in real time in view of the above, the constant fast operation of taking of conveyer belt among the control receiving and releasing area work realizes receiving and releasing the reliable operation of taking work especially receiving and taking work, effectively overcomes the problem that prior art exists.

Further, the utility model provides a scheme is concrete through increasing driven pulley, adopts multiple control signal, has improved the speed governing precision of device, realizes taking the fast function of stable constant area in the work of large capacity receipts and releases. The belt winding and unwinding device solves the impact influence on a mechanical structure under the condition of large load such as belt winding due to no speed regulation or poor speed regulation performance in the belt winding and unwinding work, improves the efficiency of the belt winding and unwinding work of the continuous belt conveyor, shortens the work period, effectively realizes the purposes of reducing labor and increasing efficiency by an intelligent control mode, reduces the construction cost, and creates favorable conditions for civilized construction and safe production.

Furthermore, the utility model provides a scheme overall structure is reliable and stable, when implementing, applicable in the winding and unwinding devices of current continuous belt conveyor, and whole practicality is strong.

Drawings

The invention is further described with reference to the following drawings and detailed description.

FIG. 1 is a side view of a belt retraction system for a continuous conveyor in accordance with an embodiment of the present invention;

FIG. 2 is a perspective view of a belt retraction system for a continuous conveyor in accordance with an embodiment of the present invention;

fig. 3 is a diagram illustrating a structure of a measuring assembly according to an embodiment of the present invention.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand and understand, the present invention is further explained by combining with the specific drawings.

The belt retracting device is used as an important link in the rear matching technology of the continuous belt conveyor and is used for the extension work of the conveying belt and the subsequent recovery work of the conveying belt in work. In the working process of belt winding or unwinding, the diameter of the conveying belt wound on the reel (or winding drum) is constantly changed, so that the linear speed of the conveying belt is constantly changed, and great problems are brought to the speed regulation control of the belt winding and unwinding device.

For those skilled in the art, the belt retracting and releasing device realizes constant belt speed control, the winding diameter of the conveying belt needs to be determined, the belt retracting and releasing process of the constant belt speed can be accurately controlled, and the slight belt speed difference can cause great tension impact of the conveying belt. If the rotating speed of the reel is controlled only by the open loop, great belt speed fluctuation can be caused, so that the tension of a winding and unwinding belt is influenced, the tension of a conveying belt fluctuates, and the winding and unwinding process is influenced; if only increasing the tape speed sensor, at the conveyer belt receive and release in-process, the conveyer belt is the dynamic operation process, and the tape speed signal is unstable, and can only obtain the theoretical value of diameter of curling at this moment, will cause the rotational speed value difference of control spool too big, cause the impact easily. In addition, the diameter of the coiled belt is in a dynamic change state in the whole working process of the coiling and uncoiling belt, and the existing scheme is difficult to accurately measure.

The utility model discloses the scheme is abandoned conventional complete set and is regulated and control the mode of receiving and releasing the belting in continuous belt conveyor's receipts and release belting based on indirect monitoring, the direct monitoring of innovation receives and releases the belting and is receiving the area or releasing the change state of taking the course conveyer belt, the change of the linear velocity of the conveyer belt winding diameter of coiling and conveyer belt on spool (or reel) promptly, and the real-time data according to this monitoring comes real-time regulation and control to receive and release belting operating condition, effectively realize receiving and releasing the fast invariant of area of in-service conveyer belt, adjust and receive and release the tension of taking, thereby the reliable area work of receiving and releasing.

In addition, the diameter of the conveying belt wound on the reel (or a winding drum) and the linear speed of the conveying belt during the belt winding or unwinding work of the collecting and unwinding device are directly monitored, so that the effectiveness and the precision of collected data are effectively guaranteed, and the subsequent regulation and control of the belt speed of the conveying belt and the precision of the tension of the collecting and unwinding belt can be guaranteed.

Referring to fig. 1 and fig. 2, there is shown an example of a structure of a retractable belt system for a continuous conveyor according to the solution of the present invention.

As can be seen from the figure, the retractable belt system for the continuous conveyor in the present example mainly includes three parts, namely a retractable belt assembly 100, a measuring assembly 200 and a redirecting assembly 300.

The belt retracting assembly 100 constitutes a main structure of the belt retracting assembly, and is used for winding the corresponding conveying belt 400 and matching with the continuous belt conveyor to perform the belt retracting or releasing operation of the conveying belt 400.

The measuring assembly 200 is arranged corresponding to the winding and unwinding assembly 100 and can be matched with the winding and unwinding assembly 100 to monitor the working state of the winding and unwinding assembly 100 for winding and unwinding the wound conveying belt 400, and simultaneously directly measure the speed of the conveying belt and the winding diameter of the conveying belt in the winding and unwinding operation process. Meanwhile, the belt retracting and releasing assembly 100 can adjust the working state of the belt retracting or releasing operation of the wound conveying belt 400 in real time according to the conveying belt speed and the winding diameter of the conveying belt, which are directly measured by the measuring assembly 200 in real time, so as to control the conveying belt 400 to keep running at a constant belt speed in the process of retracting or releasing the conveying belt.

The direction change assembly 300 in the device is arranged corresponding to the belt retracting assembly 100 and the measuring assembly 200, and forms restraint on the running direction of the conveying belt 400 wound in the belt retracting assembly 100, and fixes the starting position and the conveying direction of the belt retracting or releasing action of the conveying belt 400, so that the measuring assembly 200 can realize fixed-point measurement on the state of the conveying belt 400.

As shown in fig. 1 and 2, the retractable belt assembly 100 in this example mainly includes a variable-frequency speed-reducing motor 101, a bearing seat 102, a winding drum 103, a frame 104, and a retaining roller 105.

Here, the bearing housing 102, the reel 103, the frame 104, and the edge rollers 105 constitute respective reel mechanisms as winding bodies of the conveyor belt 400.

Wherein the frame 104 constitutes a support body of the assembly 100 for carrying the other components of the assembly while forming a winding operation space in cooperation with the drum 103.

By way of example, the rack 104 includes a base and two support frames symmetrically distributed on the base, where the base adopts a square frame structure, the structure is stable and reliable, and the overall weight can be reduced; the two support frames are of isosceles triangle structures respectively, and the isosceles triangle structures are high in structural strength and capable of reducing the overall weight. In the rack 104 thus constructed, an installation operation space is formed between the two support frames.

The bearing housing 102 is mounted to a frame 104 for mounting and supporting a reel 103. Two sets of bearing blocks 102 are symmetrically arranged on the top of the frame 104, so that the winding drum 103 can be rotatably arranged in a winding operation area formed by the frame 104.

For example, in the deployment setting of the bearing housing 102, two bearing housings 102 are connected to a winding core, the winding core is threaded into a winding drum 103, and a working conveyor belt is fixed on the winding drum 103 by the winding drum 103 to perform a winding work. Meanwhile, one end of one bearing seat is connected with a motor through a rotating shaft, the motor drives a winding core to rotate, and the winding core rotates a winding drum to pull a conveying belt to carry out belt winding and unwinding work.

The reels 103 are rotatably mounted in the bearing housings 102 by respective rotating shafts to constitute a body member for winding the conveyor belt 400. The winding drum 103 can effectively wind the conveying belt 400, and the conveying belt 400 can be unwound or wound by rotating in different directions in the bearing seat 102.

For example, the reel 103 drives the reel by rotation of the winding core and receives and conveys the conveyor belt, and the specific configuration thereof is not limited herein and may be determined according to actual needs.

This reel flange bearing roller 105 sets up in frame 104 to with the cooperation of the reel 103 of settling on frame 104, can put the area or receive the area operation when the reel 103 is to the conveyer belt, restrict the conveyer belt limit distance, prevent the conveyer belt off tracking.

For example, the roll edge roller 105 is specifically fixed to the frame 104, and is telescopically adjustable in the radial direction and the axial direction facing the roll 103, that is, has a function of adjusting the extension length in both directions, so that the roll edge roller can be kept in contact with the end surface of the roll 103, and thus the conveyor belt 400 wound around the roll 103 can be limited during the tape winding and unwinding operation, and the deflection which may occur when the conveyor belt is wound into a roll can be controlled, so that the conveyor belt can be fixed within a certain range. On the basis of the above, the present embodiment further arranges corresponding wheels 106 on the ground of the frame 104, which are matched with corresponding rails, so that the whole device can run on the rails through the wheels, and the high mobility of the whole device is realized.

By way of example, the wheels 106 can support the entire device and can travel along a predetermined track, thereby reducing the work intensity of the device during movement.

The variable frequency speed reduction motor 101 in the present take-up and pay-off assembly 100 constitutes the drive mechanism of the entire take-up and pay-off assembly for driving the winding drum mechanism to take-up or pay-off tape.

The variable frequency speed reducing motor 101 is disposed on one side or both sides of the frame 104 corresponding to the winding drum 103, and drives a rotating shaft on the winding drum 103 penetrating through the bearing seat 102 to drive the winding drum 103 to rotate.

For example, the inverter/reducer motor 101 is mainly composed of an inverter 101a, an inverter motor 101b, and a reducer 101 c. The frequency converter 101a is connected with the frequency conversion motor 101b in a control mode, the power output end of the frequency conversion motor 101b is connected with the speed reducer 101c, and the power output end of the speed reducer 101c is connected with the rotating shaft of the winding drum 103 in a driving mode.

Corresponding to the variable-frequency speed-reducing motor 101, the belt retracting assembly 100 is further provided with a corresponding electric control system 107 as a control mechanism for controlling the working state of the variable-frequency speed-reducing motor 101.

The electronic control system 107 controls the frequency converter 101a connected to the variable-frequency speed-reducing motor 101 to output a corresponding control signal to the frequency converter 101a, and the frequency converter 101a can form a corresponding variable-frequency motor working signal according to the control signal to output the corresponding variable-frequency motor working signal to the variable-frequency motor 101b, so that the frequency converter 101a adjusts a corresponding working state.

On the basis of the above-mentioned structure of the belt retracting and releasing assembly 100, the direction changing assembly 300 adopted in this example is set by a plurality of sets of direction changing rollers to limit the running direction of the conveyor belt 400 in the belt retracting and releasing assembly 100, so that not only can the running stability and reliability be ensured, but also the measurement assembly 200 can be matched to facilitate the orientation setting of the measurement assembly 200 to ensure the measurement accuracy.

By way of example, as shown in fig. 1, 2 sets of direction-changing drums are used in this example, and these 2 sets of direction-changing drums are mutually arranged on the base of the frame 104 and below the winding drum 103. The first direction-changing roller 310 is close to the winding side of the winding drum 103, and the starting position and the conveying direction of the belt winding or unwinding action of the conveyor belt 400 are fixed, so that the conveyor belt 400 which is off the winding drum 103 is unwound through the first direction-changing roller 310, or the conveyor belt 400 which is off the conveyor passes through the first direction-changing roller 310 and then is wound on the winding drum 103 to perform the belt winding action.

The angle range of the conveyor belt 400 entering the winding drum is effectively limited by the first direction-changing drum 310, so that the conveyor belt is guided to be wound into a circular roll correctly, and the size and the range of the angle of the conveyor belt between the curled conveyor belt and the direction-changing drum are effectively determined. Thus, the winding diameter of the conveyor belt currently wound into a log can be accurately determined subsequently by the layout position of the first direction-changing roller 310 and the winding angle of the conveyor belt at that time.

The second direction-changing rollers 320 are sequentially extended outwards relative to the first direction-changing rollers 310, and form a guide channel of the conveyor belt in a matching way, so that the upper side and the lower side of the conveyor belt 400 sequentially pass through the direction-changing rollers in a staggered way to perform directional transmission. By way of example, the upper surface of the conveyor belt 400 passes around the first direction-changing pulley 310, and the lower surface of the conveyor belt 400 passes around the second direction-changing pulley 320, and so on. Through the arrangement of the second direction-changing drum 320, an external conveying belt can be effectively guided into the belt retracting device, and the horizontal position of the conveying belt entering device is determined, so that the stability of the conveying belt 400 during high-speed operation is ensured.

In addition, more direction-changing drums can be added to the first direction-changing drum 310 and the second direction-changing drum 320 according to needs, and the details can be determined according to actual needs.

In conjunction with the redirecting assembly 300 of the foregoing construction, the measuring assembly 200 in this example is positioned at the bottom of the frame 104 in the pay-off and take-up assembly 100 and corresponds to the reel 103; the measuring assembly 200 is also connected and matched with an electric control system 107 in the winding and unwinding assembly 100, so that the belt speed of the conveying belt 400 at the outermost layer of the winding drum and the diameter of the whole winding drum are measured in real time when the winding drum 103 in the winding drum mechanism performs winding or unwinding actions; and the measured data is transmitted to the electronic control system 107 in real time, and the electronic control system 107 can adjust the working state of the driving mechanism in real time according to the measured belt speed of the conveying belt at the outermost layer of the winding drum and the diameter of the winding drum so as to control the conveying belt to keep running at a constant belt speed in the process of winding or unwinding the belt.

The measuring assembly 200 in this example is disposed at the bottom of the frame 104 in the belt assembly 100, specifically corresponding to the redirecting assembly 300. Specifically, the measuring assembly 200 is preferably disposed relative to the first direction-changing roller 310 in the direction-changing assembly 300, so that the measuring assembly 200 can measure the state of the conveyor belt 400 passing through the first direction-changing roller 310 in the direction-changing assembly 300 or off the reel 103 into the first direction-changing roller 310 in a fixed-point manner in real time.

In this example, the measuring assembly 200 can synchronously measure the belt speed of the conveyor belt at the outermost layer of the winding drum in the winding drum mechanism and the winding and unwinding angle of the conveyor belt relative to the winding drum, where the winding and unwinding angle is the angle of the conveyor belt between the curled conveyor belt and the direction-changing assembly 300, that is, the angle of the conveyor belt wound into the winding drum after leaving the direction-changing assembly 300 or the angle of the conveyor belt leaving the winding drum and entering the direction-changing assembly 300; and the winding diameter of the conveying belt on the winding drum is accurately determined based on the angle value, so that the measured speed of the conveying belt and the winding diameter of the conveying belt on the winding drum are ensured to keep a corresponding relation in real time, and the accuracy of the subsequent electric control system 107 in controlling the winding and unwinding of the conveying belt can be ensured.

For example, the angle of the belt between the belt and the turnabout drum is typically about 20 ° to 85 °. The diameter of the conveyor belt curling at the moment is calculated according to the measured angle and the arrangement position data of the turnabout drums, and the theoretical value of the linear speed of the conveyor belt at the moment can be accurately determined according to the diameter of the conveyor belt curling at the moment and the rotating speed of the motor.

By way of further illustration, the diameter of the entire roll (i.e., including the diameter of the roll itself and the diameter of the belt wound on the roll) may be determined directly based on the measured belt angle value in addition to directly determining the diameter of the belt wound on the roll.

Specifically, in the present embodiment, the measuring assembly 200 directly contacts the outermost belt 400 of the winding drum 103 to synchronously and directly measure the belt speed of the outermost belt of the winding drum and the winding and unwinding angle of the belt relative to the winding drum in the winding drum mechanism, thereby ensuring the accuracy of the measured data.

When the conveying belt 400 on the drum 103 is used for winding or unwinding, the diameter of the conveying belt wound on the drum is constantly changed, so that the linear speed of the conveying belt is constantly changed, in this example, an elastic measuring frame, a speed measuring sensor and an inclination angle sensor are innovatively adopted to cooperate to form the measuring assembly 200 capable of synchronously and dynamically changing.

Referring to fig. 3, an exemplary embodiment of a measurement assembly 200 is shown in the present example. Referring to fig. 2 and 3, the measuring assembly 200 is formed by a tachometer sensor 210, a tilt sensor 220, and an elastic measuring frame 230.

The elastic measuring frame 230 is a follow-up structure, one end of the elastic measuring frame is pre-pressed on the conveying belt 400 at the outermost layer of the winding drum 103 in the winding drum mechanism through elastic pressure, and corresponding inclination angle changes can be synchronously formed along with the changes of the winding diameter of the conveying belt on the winding drum.

The speed measuring sensor 210 is correspondingly arranged on the elastic measuring frame 230 and can be directly abutted to the outermost conveying belt of the winding drum 103 under the driving of the elastic measuring frame 230 so as to measure the real-time belt speed of the conveying belt 400 during the belt winding and unwinding operation in real time.

The inclination sensors 220 are also disposed on the corresponding elastic measuring frames 230, and can measure the inclination angles of the elastic measuring frames 230 synchronously formed with the change of the winding diameter of the conveyer belt on the reel in real time.

By way of example, the elastic measuring mount 230 in this example mainly comprises a base plate 231, a measuring frame 232 and a connecting spring 233.

The bottom plate 231 here acts as a bearing assembly to carry and mount the measuring rack 232 and the connecting springs; the bottom plate 231 also serves as a connecting member for the entire elastic measuring frame 230, and is used for connecting and fixing the elastic measuring frame 230 to the frame 104.

The bottom plate 231 is not limited to a specific configuration as long as the structural performance can meet the above requirements.

The measuring rack 232 in this example constitutes the sensor carrying part and the action part of the whole elastic measuring rack 230, which is used to carry the speed sensor 210 and the angle sensor 220, and simultaneously can synchronously generate corresponding follow-up along with the change of the winding diameter of the conveyer belt on the winding drum.

The measuring frame 232 is rotatably mounted on the base plate 231 at one end, and the whole can swing with respect to the base plate 231 around a connection portion with the base plate 231. By way of example, the measuring stand 232 is preferably pivotally connected to the base plate 231 by a hinge structure, which facilitates installation and maintenance and also ensures reliability. The other end, i.e. the free end, of the measuring frame 232 is used for mounting the speed measuring sensor 210; the middle region of the measuring carriage 232 is used for accommodating the angle sensor 220.

Specifically, the specific structure of the measuring rack 232 is not limited herein as long as the structural performance can meet the above requirements.

The connecting spring 233 in this example, cooperating with the measuring frame 232 to set up, can form certain elastic driving force to the measuring frame 232, make the elastic measuring frame 230 when cooperating with the frame 104 to install, under the effect of this elastic driving force, the top of measuring frame 232 can pre-press on the outermost conveyer belt 400 of reel 103 in the reel mechanism, and can form the swing synchronously along with the change of the conveyer belt winding diameter on the reel, in order to keep the pre-pressing state to the outermost conveyer belt 400 of reel 103 in the reel mechanism.

Specifically, one end of the connecting spring 233 is connected to the measuring frame 232, and here, the middle area of the connecting spring 232 is preferably connected to the measuring frame 232, and may be determined according to actual requirements; the other end of the connection spring 233 is connected to the base plate 231; the thus provided coupling spring 233 can form an elastic tensile force to the measuring frame 232 facing the base plate 231 as a corresponding elastic driving force by its own elastic deformation.

In view of the above-mentioned elastic measuring frame 230, the speed measuring sensor 210 in this example is specifically disposed at the top end of the measuring frame 232 and serves as a contact portion that can be directly abutted against the surface of the conveyor belt under the driving of the measuring frame 232. The speed measuring sensor 210 is directly pressed on the conveying belt under the action of the connecting spring 233 and rotates along with the operation of the conveying belt, so that the speed of the conveying belt can be directly measured, and the accuracy of a measuring result is ensured.

In view of the above-mentioned construction of the elastic measuring frame 230, the tilt sensor 220 in this embodiment is preferably disposed at a middle position of the elastic measuring frame 230, thereby accurately measuring the tilt angle of the elastic measuring frame 230.

When the measuring assembly 200 provided in this example is arranged in cooperation with the retractable belt assembly 100, the measuring frame 232 can swing towards the conveying belt under the action of the connecting spring 233, and the speed measuring sensor 210 on the measuring frame is pressed on the conveying belt and rotates along with the operation of the conveying belt; meanwhile, with the change of the inclination angle of the conveyor belt, the measuring rack 232 will swing synchronously under the action of the connecting spring 233, and the inclination angle sensor 220 on the measuring rack 232 measures the inclination angle change of the measuring rack 232 in real time.

Specifically, in the measurement assembly 200 thus configured, the measurement frame 232 on the measurement assembly drives the tachometer wheel on the tachometer sensor 210 for measuring the belt speed at the top end of the measurement frame to abut against and press the conveyor belt 400 at the outermost layer of the winding drum 103 under the action of the elastic tension of the connecting spring 233; simultaneously based on the elastic tension of coupling spring 233 for speed sensor 210's velocity measurement wheel can remain certain pressure throughout and the outermost conveyer belt 400 of reel 103 compresses tightly the butt, can make the velocity measurement wheel remain throughout with the outermost conveyer belt 400 of reel 103 effective butt like this, the velocity measurement wheel can remain throughout with the outermost conveyer belt 400 synchronization action of reel 103, the realization is through the synchronous revolution that corresponds measuring conveyer belt 400's area speed parameter, and guarantee measuring result's real-time and accuracy.

Meanwhile, the measuring rack 232 is kept pressed and abutted with the conveying belt 400 at the outermost layer of the winding drum 103 under a certain pressure under the action of the elastic tension of the connecting spring 233, so that when the winding drum 103 changes the winding diameter of the conveying belt due to the belt winding or unwinding action, the measuring rack 232 synchronously swings under the action of the elastic tension of the connecting spring 233, the inclination angle of the measuring rack 232 changes at the moment, the inclination angle sensor 220 arranged on the measuring rack 232 synchronously measures the inclination angle parameter of the measuring rack 232, the change of the inclination angle is directly generated based on the change of the winding diameter of the conveying belt on the winding drum 103, and then the diameter parameter of the winding drum of the conveying belt at the moment can be directly and accurately determined based on the measured inclination angle.

When the measuring assembly 200 is matched with the winding and unwinding belt assembly 100 to be arranged, the measuring sensor is directly and reliably abutted to the conveying belt 400 on the winding drum 103 through a reliable transmission structure, and the change state of the conveying belt of the winding and unwinding belt assembly in the winding or unwinding working process, namely the change of the winding diameter of the conveying belt 400 on the winding drum and the linear speed of the conveying belt, can be directly and timely monitored. The diameter change of the conveying belt wound on the winding drum and the linear speed of the conveying belt can be directly monitored in real time in the working process of collecting and winding or unwinding the conveying belt, so that the effectiveness and the precision of data collection are effectively guaranteed, and the subsequent precision of regulating and controlling the belt speed of the conveying belt and the tension of the winding and unwinding belt can be guaranteed.

The belt retracting device provided by the embodiment can be matched with a continuous belt conveyor to retract or release a belt, the belt speed of the conveying belt is constant in the belt retracting work, the tension of the retracted belt is adjusted, and therefore the belt retracting work is reliably performed.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (8)

1. The belt retracting system for the continuous conveyor comprises a belt retracting assembly, wherein the belt retracting assembly comprises a control mechanism, a driving mechanism and a winding drum mechanism, the driving mechanism drives the winding drum mechanism to perform belt retracting or unwinding actions, and the control mechanism controls the working state of the driving mechanism; the winding and unwinding device is characterized by further comprising a measuring assembly, the control mechanism measures the speed of a conveying belt on the outermost layer of the winding drum and the diameter of a coiled conveying belt when the winding drum in the winding drum mechanism performs winding or unwinding actions in real time through the measuring assembly, and the control mechanism controls and is connected with the driving mechanism.

2. The belt retracting system of claim 1, wherein the measuring assembly is capable of measuring the belt speed of the outermost layer of the drum and the belt retracting angle of the belt in the drum mechanism synchronously.

3. The belt retracting system of claim 1, wherein the measuring assembly comprises an elastic measuring frame, a speed measuring sensor and an inclination angle sensor, the speed measuring sensor and the inclination angle sensor are arranged on the elastic measuring frame, one end of the elastic measuring frame is pre-pressed on the conveying belt on the outermost layer of the winding drum in the winding drum mechanism through elastic pressure and can synchronously form corresponding inclination angle change along with the diameter change of the winding conveying belt in the winding drum mechanism, and the speed measuring sensor abuts against the conveying belt on the outermost layer of the winding drum in the winding drum mechanism along with the elastic measuring frame; the inclination angle sensor can measure the inclination angle of the elastic measuring frame in real time.

4. The retractable belt system for a continuous conveyor of claim 1, wherein the retractable belt assembly further comprises a direction-changing assembly disposed in conjunction with the reel mechanism to constrain the direction of travel of the conveyor belt.

5. The belt retracting system of claim 4, wherein the direction changing assembly is formed by a plurality of groups of direction changing rollers.

6. The belt retracting system for a continuous conveyor of claim 1, wherein the drive mechanism is comprised of at least one variable frequency reduction motor.

7. The pay-off and take-up belt system for a continuous conveyor of claim 1, wherein the reel mechanism includes a frame, a reel and a bearing housing, the bearing housing being disposed on the frame, the reel being disposed on the frame through the bearing housing.

8. The belt retracting system of claim 7, wherein the frame has wheels that engage the track.

Images