A tension machine anti-line emergency system

Abstract

The present invention relates to an emergency system for preventing a tension machine from running away, comprising a control module, an energy storage module, a braking module and a hydraulic circuit, wherein the braking module is arranged on the driving wheel of the tension machine and is used to brake the tension machine; the first input end of the energy storage module is electrically connected to the output end of the control module, and the output end of the energy storage module is electrically connected to the input end of the braking module, and is used to store energy when the tension machine is in a passive working condition, and to release energy when the tension machine is in a faulty state; the output end of the hydraulic circuit is connected to the second input end of the energy storage module, and is used to supply energy to the energy storage module; the control module is used to brake the driving wheel of the tension machine by controlling the braking module, and to supply energy to the braking module by controlling the energy storage module. The emergency system for preventing a tension machine from running away provided by the present invention can recover energy wasted in the tension release working condition, perform emergency braking and abnormal protection on the tension machine, and meet the actual application requirements.

Description

Technical Field

[0001] The invention relates to the technical field of brake systems, in particular to an emergency system for preventing a tension machine from running away. Background Art

[0002] With the continuous development of my country's economy, the power transmission industry plays an increasingly important role in the development of the national economy. As an important part of the power transmission industry, the tension machine plays a vital role in practical applications. The tension machine is usually equipped with a wire storage plate, a spring and a wire storage groove. When the bearing drives the spring to rotate, the wire is wound in the wire storage groove on the wire storage plate. During the orderly arrangement and winding process through the wire storage groove, the reaction force of the spring will help the wire to remain in a taut state through the wire storage plate, preventing the wire from running out of the wire storage plate, thereby preventing the wire from running.

[0003] However, the phenomenon of wire running exists to a greater or lesser extent in the entire tension machine industry, because each original device has leakage to a certain extent, and when a pressure difference occurs, wire running will occur. Therefore, how to eliminate the phenomenon of wire running is a common goal of the tension equipment industry. Among them, wire running of the tension machine refers to the process in which the wire being released quickly slides forward after the corresponding brake is opened after the machine is temporarily stopped during the tension release. If the wire is running seriously, it will bring great safety hazards.

[0004] However, most of the tension machines currently used at home and abroad achieve tension release through pressure regulation of the relief valve. However, the hydraulic oil is easily contaminated during field use, which may cause the hydraulic components to fail. In particular, the relief valve may malfunction and lose its function, which may directly cause the motor to lose its loading torque, resulting in a line runaway accident. Summary of the invention

[0005] In order to solve the above problems, the purpose of the present invention is to provide a tension machine anti-line running emergency system that can recover energy wasted in tension pay-off conditions and perform emergency braking and abnormal protection on the tension machine.

[0006] A tension machine anti-runaway emergency system includes a control module, an energy storage module, a brake module and a hydraulic circuit.

[0007] The brake module is arranged on the driving wheel of the tension machine and is used to brake the tension machine;

[0008] The first input end of the energy storage module is electrically connected to the output end of the control module, and the output end of the energy storage module is electrically connected to the input end of the brake module, for storing energy when the tension machine is in a passive working condition, and releasing energy when the tension machine is in a fault state;

[0009] The output end of the hydraulic circuit is connected to the second input end of the energy storage module, so as to supply energy to the energy storage module;

[0010] The control module is used to brake the driving wheel of the tension machine by controlling the braking module, and to supply energy to the braking module by controlling the energy storage module.

[0011] In addition, the tension machine anti-runaway emergency system provided by the present invention may also have the following additional technical features:

[0012] Furthermore, the brake module includes a large gear coaxially arranged with the tension machine driving wheel through a bearing, a small gear meshing with the large gear, and a magnetic powder damper connected to the small gear through a coupling.

[0013] Furthermore, the energy storage module includes an energy storage hydraulic motor and a generator, the output end of the energy storage hydraulic motor is connected to the input end of the generator through a coupling, and the output end of the generator is connected to the battery through a rectifier module.

[0014] Furthermore, the hydraulic circuit includes an oil replenishment circuit, a one-way valve, a power hydraulic motor, a pressure reducing valve and a two-position two-way electromagnetic reversing valve connected in sequence. The oil replenishment circuit supplies energy to the power hydraulic motor through the one-way valve, and supplies energy to the energy storage hydraulic motor after reducing the pressure and limiting the flow of the hydraulic oil passing through the power hydraulic motor, wherein the power hydraulic motor is used to supply energy to the tension machine.

[0015] Furthermore, the control module includes a relay switch, a Hall sensor and a relay coil electrically connected to the controller. The controller receives the sensing signal of the Hall sensor, converts it into speed information, and compares it with a set value. If the speed is less than the set value, the relay coil is energized and the relay switch is disconnected. If the speed is greater than the set value, the relay coil is de-energized and the relay switch is closed.

[0016] Furthermore, the tension machine anti-runaway emergency system also includes a braking circuit, and the braking circuit includes a loading overflow valve, an overflow valve and an oil tank which are sequentially connected to the outlet of the power hydraulic motor.

[0017] Furthermore, the displacement of the energy storage hydraulic motor is 10cc.

[0018] Furthermore, the speed ratio between the large gear and the small gear is 1:7.5.

[0019] Furthermore, the braking torque of the magnetic powder damper is 5000 NM.

[0020] Furthermore, the control module also includes an alarm unit, which includes a buzzer, an alarm indicator light and a communicator respectively connected to the controller.

[0021] According to the tension machine anti-runaway emergency system provided by the present invention, the tension machine is braked by a brake module arranged on the active wheel of the tension machine; the first input end of the energy storage module is electrically connected to the output end of the control module, and the output end of the energy storage module is electrically connected to the input end of the brake module, so as to store energy when the tension machine is in a passive working condition, and release energy when the tension machine is in a faulty state; the output end of the hydraulic circuit is connected to the second input end of the energy storage module, so as to supply energy to the energy storage module; through the setting of the control module, the active wheel of the tension machine is braked by controlling the brake module, and the brake module is supplied with energy by controlling the energy storage module. The present invention can recover the energy wasted in the tension release working condition through the energy storage hydraulic motor and generator in the energy storage module, perform emergency braking on the tension machine through the magnetic powder damper, and protect and warn the abnormality of the system, meeting the actual application needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall system structure of the tension machine anti-line running emergency system in the first embodiment of the present invention;

[0023] Figure 2 for Figure 1 The structural diagram of the energy storage module;

[0024] Figure 3 for Figure 1 The structural diagram of the brake module;

[0025] Figure 4 for Figure 1 The structural diagram of the control module;

[0026] Figure 5 for Figure 1 Schematic diagram of the hydraulic circuit.

[0027] Description of main component symbols:

[0028] Braking module 10 Big gear 11 Small gear 12 Magnetic Powder Damper 13 Energy storage module 20 Energy storage hydraulic motor 21 dynamo 22 Rectifier module 23 Battery 24 Hydraulic circuit 30 Oil replenishment circuit 31 Check valve 32 Power hydraulic motor 33 Pressure reducing valve 34 Two-position two-way solenoid valve 35 Loading relief valve 36 Relief valve 37 tank 38 Control Module 40 Controller 41 Relay switch 42 Hall sensor 43 Relay coil 44

[0029] The following specific implementation manner will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0030] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings. Several embodiments of the present invention are shown in the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0031] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right", "upper", "lower" and similar expressions used herein are for illustrative purposes only and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0033] See also Figures 1 to 5 The tension machine anti-runaway emergency system proposed in the embodiment of the present invention includes a braking module 10, an energy storage module 20, a hydraulic circuit 30 and a control module 40.

[0034] Furthermore, the braking module 10 is arranged on the driving wheel of the tension machine, and is used to brake the tension machine.

[0035] Specifically, the brake module 10 includes a large gear 11 coaxially arranged with the tension machine driving wheel through a bearing, a small gear 12 meshing with the large gear 11, and a magnetic powder damper 13 connected to the small gear through a coupling. It should also be noted that the base of the magnetic powder damper 13 is fixed to the frame, and the magnetic powder damper 13 is installed on the small gear shaft, and the rotation of the large gear 11 meshing with the small gear 12 is prevented by generating a certain damping, thereby braking the driving wheel of the tension machine for installing the large gear 11. Among them, the speed ratio of the large gear 11 to the small gear 12 is 1:7.5, and the braking torque of the magnetic powder damper 13 is 5000NM.

[0036] Furthermore, the first input end of the energy storage module 20 is electrically connected to the output end of the control module 40, and the output end of the energy storage module 20 is electrically connected to the input end of the braking module 10, for storing energy when the tension machine is in a passive working condition and releasing energy when the tension machine is in a faulty state.

[0037] Specifically, the energy storage module 20 includes an energy storage hydraulic motor 21 and a generator 22. The output end of the energy storage hydraulic motor 21 is connected to the input end of the generator 22 through a coupling, and the output end of the generator 22 is connected to the battery 24 through a rectifier module 23. The displacement of the energy storage hydraulic motor 21 is 10cc.

[0038] It can be understood that in this embodiment, when the tension machine is in a passive working condition, a portion of the hydraulic oil on the hydraulic circuit 30 enters the energy storage hydraulic motor 21 along the pipeline and drives it to rotate, thereby realizing that the energy storage hydraulic motor 21 drives the generator 22 to rotate to generate electricity, and the electricity generated by the rotation of the generator 22 is rectified by the rectifier module 23 and stored in the battery 24, thereby completing energy storage. When the tension machine runs out of line, that is, when an abnormality is detected in the tension wheel, the control module 40 controls the magnetic powder damper 13 to brake the tension wheel, and the electric energy of the magnetic powder damper 13 is provided by the battery 24.

[0039] Furthermore, the output end of the hydraulic circuit 30 is communicated with the second input end of the energy storage module 20 for supplying energy to the energy storage module 20 .

[0040] Specifically, the hydraulic circuit 30 includes an oil replenishment circuit 31, a one-way valve 32, a power hydraulic motor 33, a pressure reducing valve 34 and a two-position two-way electromagnetic reversing valve 35 which are connected in sequence, as well as a loading relief valve 36 provided at the output end of the power hydraulic motor 33, a relief valve 37 provided at the output end of the loading relief valve 36 and an oil tank 38 connected to the relief valve 37. The oil replenishment circuit 31 supplies energy to the power hydraulic motor 33 through the one-way valve 32, and supplies energy to the energy storage hydraulic motor 21 after reducing the pressure and limiting the flow of the hydraulic oil passing through the power hydraulic motor 33, wherein the power hydraulic motor 33 is used to supply energy to the tension machine.

[0041] It can be understood that in this embodiment, the output end of the oil replenishment circuit 31 is connected to the input end of the one-way valve 32, and the output end of the one-way valve 32 is connected to the input end of the power hydraulic motor 33, so that the power hydraulic motor 33 supplies energy to the driving wheel of the tension machine, that is, drives the driving wheel of the tension machine to rotate to perform the operation of retracting and releasing the wire; a part of the hydraulic oil at the output end of the power hydraulic motor 33 is sequentially loaded through the first brake circuit formed by the overflow valve 36, the overflow valve 37 and the oil tank 38 to brake the tension wheel, that is, by controlling the first output end of the power hydraulic pump that supplies energy to the driving wheel of the tension machine The flow rate and pressure of the hydraulic oil are used to form resistance to the rotation of the driving wheel in the tension machine, thereby realizing the first braking of the tension machine; the other part of the hydraulic oil at the output end of the power hydraulic motor 33 is filtered and connected to the input end of the energy storage hydraulic motor 21 through the pressure reducing valve 34 and the two-position two-way electromagnetic reversing valve 35 in sequence to supply energy to the energy storage module 20, that is, the energy storage hydraulic motor 21 drives the generator 22 at the other end of the coupling to generate electricity, and the current generated at the output end of the generator 22 is rectified and stored in the battery 24, so as to recover the energy wasted under the tension wire-releasing condition.

[0042] Furthermore, the control module 40 is used to brake the driving wheel of the tension machine by controlling the braking module 10 , and to supply energy to the braking module 10 by controlling the energy storage module 20 .

[0043] Specifically, the control module 40 includes a relay switch 42, a Hall sensor 43 and a relay coil 44 electrically connected to a controller 41. The controller 41 receives the sensing signal of the Hall sensor 43, converts it into speed information, and compares it with a set value. If the speed is less than the set value, the relay coil 44 is energized and the relay switch 42 is disconnected. If the speed is greater than the set value, the relay coil 44 is de-energized and the relay switch 42 is closed. The controller 41 is a PLC controller.

[0044] It can be understood that in this embodiment, the electrical control part is composed of a relay switch 42, a generator 22, a battery 24, a magnetic powder damper 13, a rectifier module 23, a Hall sensor 43, a controller 41 and a relay coil 44. The current output by the generator 22 enters the rectifier module 23, and is charged by the battery 24 after being output by the rectifier module 23. The output end of the battery 24 is connected to the magnetic powder damper 13, and a relay switch 42 is added to the positive line. The switch is in a normally closed state. At the same time, the battery 24 simultaneously supplies power to the controller 41 and the Hall sensor 43. The signal output end of the Hall sensor is connected to the controller 41, and the output end of the controller 41 is connected to the relay coil 44.

[0045] In specific implementation, the operation of the tension machine anti-runaway emergency system is divided into two processes, namely charging and braking.

[0046] Charging process: When the tension machine is in a passive working condition, the two-position two-way electromagnetic reversing valve 35 is opened, so that part of the hydraulic oil passes through the pressure reducing valve 34 and enters the energy storage hydraulic motor 21. The energy storage hydraulic motor 21 drives the generator 22 to work through the coupling. The current generated by the generator 22 passes through the rectifier module 23, and the rectified current is used to charge the battery 24.

[0047] Braking process: When the tension machine is in normal tension operation, the sensor signal of the Hall sensor 43 received by the controller 41 indicates that the speed of the active wheel of the tension machine is less than the set value. The controller 41 outputs a control signal, the relay coil 44 is energized, and the normally closed switch in the electrical circuit is disconnected. At this time, the magnetic powder damper 13 is in a non-working state. When the line is running, it is obtained that the speed of the active wheel of the tension machine increases, and the sensor signal of the Hall sensor 43 received by the controller 41 indicates that the speed of the active wheel of the tension machine is greater than the set value. The controller 41 does not output a signal, the relay coil 44 loses power, and the normally closed switch in the electrical circuit is in a closed state. The magnetic powder damper 13 forms a loop with the battery 24, the magnetic powder damper 13 is energized, and the active wheel of the tension machine is braked. When the controller 41 fails and the power is off, the relay coil 44 loses power, the normally closed switch is in a closed state, and the magnetic powder damper 13 is also braked to realize the abnormal protection function of the braking system.

[0048] It should also be noted that in other embodiments of the present invention, the control module 40 further includes an alarm unit, which includes a buzzer, an alarm indicator light and a communicator respectively connected to the controller 41. It is understandable that the setting of the alarm unit can make an on-site alarm or a remote alarm when the tension machine fails or is abnormal, so as to remind the management personnel to detect the failure or abnormality of the tension machine.

[0049] The tension machine anti-runaway emergency system proposed by the present invention brakes the tension machine through a brake module arranged on the active wheel of the tension machine; electrically connects the first input end of the energy storage module with the output end of the control module, and electrically connects the output end of the energy storage module with the input end of the brake module, so as to store energy when the tension machine is in a passive working condition, and release energy when the tension machine is in a faulty state; connects the output end of the hydraulic circuit with the second input end of the energy storage module, so as to supply energy to the energy storage module; through the setting of the control module, so as to control the brake module to brake the active wheel of the tension machine, and control the energy storage module to supply energy to the brake module. The present invention can recover the energy wasted in the tension wire release working condition through the energy storage hydraulic motor and generator in the energy storage module, perform emergency braking on the tension machine through the magnetic powder damper, and protect and warn the abnormality of the system, meeting the actual application needs.

[0050] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0051] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A tension machine anti-line emergency system, characterized in that: Including control module, energy storage module, brake module and hydraulic circuit, The brake module is arranged on the driving wheel of the tension machine and is used to brake the tension machine. The brake module includes a large gear coaxially arranged with the driving wheel of the tension machine through a bearing, a small gear meshing with the large gear, and a magnetic powder damper connected to the small gear through a coupling; The first input end of the energy storage module is electrically connected to the output end of the control module, and the output end of the energy storage module is electrically connected to the input end of the brake module, and is used to store energy when the tension machine is in a passive working condition, and to release energy when the tension machine is in a faulty state. The energy storage module includes an energy storage hydraulic motor and a generator. The output end of the energy storage hydraulic motor is connected to the input end of the generator through a coupling, and the output end of the generator is connected to the battery through a rectifier module; The output end of the hydraulic circuit is connected to the second input end of the energy storage module, and is used to supply energy to the energy storage module. The hydraulic circuit includes an oil replenishment circuit, a one-way valve, a power hydraulic motor, a pressure reducing valve, and a two-position two-way electromagnetic reversing valve that are connected in sequence. The oil replenishment circuit supplies energy to the power hydraulic motor through the one-way valve, and supplies energy to the energy storage hydraulic motor after reducing the pressure and limiting the flow of the hydraulic oil passing through the power hydraulic motor, wherein the power hydraulic motor is used to supply energy to the tension machine; The control module is used to brake the driving wheel of the tension machine by controlling the braking module, and to supply energy to the braking module by controlling the energy storage module. The control module includes a relay switch, a Hall sensor and a relay coil electrically connected to the controller. The controller receives the sensor signal of the Hall sensor, converts it into speed information, and compares it with the set value. If the speed is less than the set value, the relay coil is energized and the relay switch is disconnected. If the speed is greater than the set value, the relay coil is de-energized and the relay switch is closed. When the tension machine is in normal tension operation, the sensor signal of the Hall sensor received by the controller indicates that the speed of the driving wheel of the tension machine is less than the set value, the controller outputs a control signal, the relay coil is energized, and the normally closed switch in the electrical circuit is disconnected. At this time, the magnetic powder damper is in a non-working state; when a line run-off condition occurs, the sensor signal of the Hall sensor received by the controller indicates that the speed of the driving wheel of the tension machine is greater than the set value, the controller does not output a signal, the relay coil loses power, the normally closed switch in the electrical circuit is in a closed state, the magnetic powder damper forms a loop with the battery, the magnetic powder damper is energized, and the driving wheel of the tension machine is braked; when a fault occurs in the controller, the relay coil loses power, the normally closed switch in the electrical circuit is in a closed state, the magnetic powder damper brakes, and the abnormal protection function of the braking system is realized.

2. The tension machine anti-line running emergency system according to claim 1 is characterized in that: The tension machine anti-runaway emergency system also includes a brake circuit, which includes a loading overflow valve, an overflow valve and an oil tank that are sequentially connected to the outlet of the power hydraulic motor.

3. The tension machine anti-line running emergency system according to any one of claims 1 to 2, characterized in that: The displacement of the energy storage hydraulic motor is 10cc.

4. The tension machine anti-line running emergency system according to claim 3 is characterized in that: The speed ratio between the large gear and the small gear is 1:7.

5.

5. The tension machine anti-line running emergency system according to claim 3 is characterized in that: The braking torque of the magnetic powder damper is 5000NM.

6. The tension machine anti-line running emergency system according to claim 1, characterized in that: The control module also includes an alarm unit, which includes a buzzer, an alarm indicator light and a communicator respectively connected to the controller.

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