A detection device and method for bucket wheel excavator material flow

Abstract

The present invention relates to the technical field of bucket wheel excavators, and in particular to a device and method for detecting material flow of bucket wheel excavators, an early warning component, comprising a machine body, a prompting member and a first detecting member, wherein the prompting member is arranged on the machine body, and the first detecting member is arranged on the prompting member; and a protection component, comprising a transporting member, a second detecting member and a mitigation member, wherein the transporting member is arranged on the machine body, the second detecting member is arranged on the transporting member, and the mitigation member is arranged on the transporting member. Through the close cooperation between the early warning component and the protection component, not only the real-time and effective detection of the larger material flow of the cantilever belt is realized, but also the reliability and safety of the entire material conveying system are significantly enhanced. This multi-level protection mechanism can timely identify potential risk points and take corresponding preventive measures, thereby greatly reducing the risk of equipment damage and production interruption caused by abnormal working conditions.

Description

Technical Field

[0001] The present invention relates to the technical field of bucket wheel machines, and in particular to a detection device and method for a material flow of a bucket wheel machine. Background Art

[0002] In modern industrial production, bucket wheel excavators are widely used in ports, mines and other places as a highly efficient bulk material handling equipment. However, in actual operation, bucket wheel excavator reclaiming systems face a series of challenges, especially the problem of material flow control.

[0003] Specifically, due to the influence of various factors (such as changes in the properties of raw materials, equipment wear, etc.), bucket wheel excavators often find it difficult to maintain a constant and uniform discharge rate when performing material-retrieving tasks. This fluctuation not only affects the stability of subsequent process flows, but may also lead to a decline in product quality. When the instantaneous discharge volume exceeds the design value, it is easy to cause the downstream conveyor belt to be overloaded due to excessive pressure, which in turn triggers the safety protection mechanism and causes shutdown or tripping accidents. Such emergencies not only interrupt the production process, but may also cause damage to the equipment, increasing maintenance costs and time losses. Summary of the invention

[0004] In view of the above-mentioned difficulty in maintaining a constant and uniform discharge rate, such fluctuation not only affects the stability of the subsequent process flow, but may also lead to a decline in product quality; when the instantaneous discharge volume exceeds the design value, it is easy to cause the downstream conveyor belt to be subjected to excessive pressure and overload, thereby triggering the safety protection mechanism to cause shutdown or tripping accidents. Such emergencies not only interrupt the production process, but may also cause damage to the equipment, increase maintenance costs and time losses, and thus the present invention is proposed.

[0005] Therefore, an object of the present invention is to provide a device for detecting material flow of a bucket wheel machine.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a detection device for bucket wheel excavator material flow, comprising:

[0007] An early warning component comprises a body, a prompting member and a first detecting member, wherein the prompting member is arranged on the body, and the first detecting member is arranged on the prompting member; and,

[0008] The protection component comprises a transport member, a second detection member and a relief member, wherein the transport member is arranged on the machine body, the second detection member is arranged on the transport member, and the relief member is arranged on the transport member.

[0009] As a preferred solution of the detection device for bucket wheel excavator material flow of the present invention, the machine body includes a rotatably connected large arm, and the large arm enables the transportation of coal for transshipment.

[0010] As a preferred solution of the detection device for bucket wheel excavator material flow of the present invention, the prompting member includes a cantilever belt fixedly connected to the upper arm, an alarm sensor fixedly connected on one side of the cantilever belt, and an audible and visual alarm fixedly connected on the other side of the cantilever belt.

[0011] As a preferred solution of the detection device for bucket wheel excavator material flow of the present invention, the first detection member includes a first vertical chain fixedly connected to the upper side of the cantilever belt, and a first universal switch fixedly connected to the first vertical chain.

[0012] As a preferred solution of the detection device for bucket wheel excavator material flow of the present invention, the transport member includes a No. 3 coal conveyor belt arranged on the other side of the machine body, and the No. 3 coal conveyor belt is used for the transportation and circulation of coal.

[0013] As a preferred solution of the detection device for bucket wheel excavator material flow of the present invention, the second detection member includes a second vertical chain fixedly connected to the No. 3 coal conveyor belt, and a second universal switch fixedly connected to the second vertical chain.

[0014] As a preferred solution of the detection device for bucket wheel excavator material flow of the present invention, the relief member includes a No. 4 coal conveyor belt arranged on the other side of the No. 3 coal conveyor belt, and the No. 4 coal conveyor belt is provided with an A belt and a B belt.

[0015] A method for detecting a material flow of a bucket wheel excavator, comprising the above-mentioned device for detecting a material flow of a bucket wheel excavator, comprises the following steps:

[0016] Using the early warning component and the protection component to detect the material flow of the bucket wheel machine;

[0017] When a large material flow is detected, the early warning component is triggered;

[0018] When it is detected that the material flow is too high, the protection component is triggered;

[0019] The material flow can be adjusted differently through different triggering mechanisms.

[0020] As a preferred solution of the method for detecting material flow of a bucket wheel excavator of the present invention, the protection component is triggered when the material flow is too high, and the interlocking protection action is performed, the forward movement of the trolley is prohibited, the rotation and pitching of the boom are prohibited, and the bucket wheel equipment stops working.

[0021] As a preferred solution of the method for detecting material flow of a bucket wheel excavator of the present invention, the internal contacts and external contacts of the switch of the trigger mechanism are disconnected under normal conditions, and when impacted by the high material flow at the bottom, the contact circuits of the internal and external contacts are connected.

[0022] Beneficial effects of the present invention: through the close cooperation between the early warning component and the protection component, not only the real-time and effective detection of the large material flow of the cantilever belt is realized, but also the reliability and safety of the entire material conveying system are significantly enhanced. This multi-level protection mechanism can timely identify potential risk points and take corresponding preventive measures, thereby greatly reducing the risk of equipment damage and production interruption caused by abnormal working conditions;

[0023] Optimize production efficiency: The application of multi-stage screening material flow detection method makes the judgment of ultra-high material flow status more accurate and reliable, which not only helps to avoid unnecessary downtime maintenance, but also provides operators with more information support about the current working status, so that they can adjust the production plan or parameter settings according to the actual situation, thereby achieving the purpose of improving overall work efficiency;

[0024] Reduced operation and maintenance costs: Due to the use of advanced monitoring technology and intelligent control strategies, this solution can detect and deal with problems at an early stage, reducing the manpower and material investment required for subsequent maintenance. In addition, by implementing more effective protection measures for key components, their service life can be extended, further saving the cost of replacing parts and related services. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 The present invention is a schematic diagram of the overall structure of a device for detecting material flow of a bucket wheel excavator.

[0027] Figure 2 The present invention is a partial structural schematic diagram of a detection device for bucket wheel excavator material flow.

[0028] Figure 3 The present invention is a schematic diagram of the process operation of a device and method for detecting material flow of a bucket wheel excavator. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, 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.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0032] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0033] Example 1

[0034] Reference Figure 1 - Figure 2 , which is the first embodiment of the present invention, provides a detection device for bucket wheel excavator material flow, the device includes an early warning component 100, including a body 101, a prompting member 102 and a first detection member 103, the prompting member 102 is arranged on the body 101, and the first detection member 103 is arranged on the prompting member 102.

[0035] Specifically, the body 101 includes a rotatably connected arm 101a, and the arm 101a enables the coal to be transported for transshipment.

[0036] Furthermore, the prompting member 102 includes a cantilever belt 102a fixedly connected to the upper arm 101a, an alarm sensor 102b fixedly connected to one side of the cantilever belt 102a, and an audible and visual alarm 102c fixedly connected to the other side of the cantilever belt 102a.

[0037] Furthermore, the first detection member 103 includes a first vertical chain 103a fixedly connected to the upper side of the cantilever belt 102a, and a first universal switch 103b fixedly connected to the first vertical chain 103a.

[0038] During operation, when the bucket wheel machine starts working, the arm 101a will rotate with the transportation of materials. At this time, the cantilever belt 102a will also move, driving the alarm sensor 102b and the sound and light alarm 102c thereon to work; during the material transportation process, the first detection member 103 (i.e., the first universal switch 103b on the first vertical chain 103a) will monitor the material flow on the cantilever belt 102a in real time. If it is detected that the material flow rate increases abnormally and exceeds the preset safety threshold, the corresponding early warning mechanism is triggered; once it is detected that the material flow rate is too large, the alarm sensor 102b will immediately send an alarm signal to the control system. system, and the sound and light alarm 102c will also issue obvious visual and auditory warnings to remind the operator to pay attention to the current abnormal situation; after receiving the early warning signal, the control system will determine whether it is necessary to start the interlock protection program according to the preset logic. If it is confirmed that intervention is required, it will adjust the operating status of related equipment through control instructions, such as reducing the material taking speed of the bucket wheel machine or suspending the operation of some conveyor belts to prevent equipment damage or production interruption accidents caused by overload; when the problem is properly handled and the system confirms that everything is normal, the alarm state can be manually or automatically released, and gradually return to the normal production process.

[0039] It can be seen from the above steps that the present invention can not only effectively monitor the problems that may occur in the bucket wheel excavator's material reclaiming process, but also take timely measures to avoid potential safety hazards, thereby greatly improving the safety and stability of the production line.

[0040] Example 2

[0041] Reference Figure 1 - Figure 2 , which is the first embodiment of the present invention, provides a detection device for bucket wheel excavator material flow, the device includes a protection component 200, including a transport member 201, a second detection member 202 and a relief member 203, the transport member 201 is arranged on the body 101, the second detection member 202 is arranged on the transport member 201, and the relief member 203 is arranged on the transport member 201.

[0042] Specifically, the transport member 201 includes a No. 3 coal conveyor belt 201a disposed on the other side of the machine body 101, and the No. 3 coal conveyor belt 201a is used for transporting and circulating coal.

[0043] Furthermore, the second detection member 202 includes a second vertical chain 202a fixedly connected to the No. 3 coal conveyor belt 201a, and a second universal switch 202b fixedly connected to the second vertical chain 202a.

[0044] Furthermore, the relief member 203 includes a No. 4 coal conveyor belt 203a disposed on the other side of the No. 3 coal conveyor belt 201a, and the No. 4 coal conveyor belt 203a is provided with an A belt 203b and a B belt 203c.

[0045] During operation, when the bucket wheel machine starts to work, the coal is transferred to the No. 3 coal conveyor belt 201a through the arm 101a. At this time, the No. 3 coal conveyor belt 201a starts to operate, driving the second detection member 202 (i.e., the second universal switch 202b on the second vertical chain 202a) on it to work; during the coal transportation process, the second detection member 202 will monitor the material flow on the No. 3 coal conveyor belt 201a in real time. If it is detected that the material flow rate increases abnormally and exceeds the preset safety threshold, the corresponding early warning mechanism will be triggered; once it is detected that the material flow rate is too large, the second universal switch 202b will immediately send an alarm signal to the control system to remind the operator to pay attention to the current abnormal situation; after receiving the early warning signal, the control system will determine whether it is necessary to start the interlock protection program according to the preset logic. If it is confirmed that intervention is required, the operating status of the relevant equipment will be adjusted through control instructions, such as reducing the material taking speed of the bucket wheel machine or suspending the operation of some conveyor belts to prevent equipment damage or production interruption accidents caused by overload; at the same time, in order to further reduce the No. 3 coal conveyor belt When the load on No. 201a is reduced, relief component 203 (i.e., belt A 203b and belt B 203c on No. 4 coal conveyor belt 203a) will be activated, and belt A 203b and belt B 203c can work in parallel to share the coal transportation task on No. 3 coal conveyor belt 201a, thereby reducing the load pressure on a single belt; when the problem is properly handled and the system confirms that everything is normal, the alarm state can be manually or automatically lifted, and the normal production process can be gradually restored. During this period, belt A 203b and belt B 203c will continue to assist No. 3 coal conveyor belt 201a in coal transportation until all equipment resumes normal operation.

[0046] From the above, it can be seen that the present invention can not only effectively monitor the problems that may occur in the bucket wheel excavator's material feeding process, but also take timely measures to avoid potential safety hazards, thereby greatly improving the safety and stability of the production line. In addition, by introducing the relief component 203 (i.e., the A belt 203b and the B belt 203c on the No. 4 coal conveyor belt 203a), the flexibility of the system and its ability to cope with emergencies are further enhanced.

[0047] Example 3

[0048] Reference Figure 1 - Figure 3 , which is the third embodiment of the present invention, provides a device and method for detecting material flow of a bucket wheel excavator, the contents of which are as follows:

[0049] S1: Using the early warning component 100 and the protection component 200 to detect the material flow of the bucket wheel machine;

[0050] Start the bucket wheel excavator and begin the material transfer operation. At this time, the warning component 100 (such as the first universal switch 103b) and the protection component 200 (such as the second universal switch 202b) are both in standby mode; as the material passes through the bucket wheel excavator and enters the cantilever belt 102a or the No. 3 coal conveyor belt 201a, the sensors on these components begin to monitor the material flow.

[0051] S2: When a large material flow is detected, the early warning component 100 is triggered;

[0052] If the early warning component 100 detects that the material flow exceeds the preset safety threshold but has not yet reached the emergency stop standard, it will send a warning signal to the control system; after receiving this signal, the control system can use the sound and light alarm 102c to remind on-site staff to pay attention to the current situation and consider taking appropriate measures to reduce the material flow.

[0053] S3: When it is detected that the material flow is too high, the protection component 200 is triggered;

[0054] If the material flow rate continues to increase until it exceeds a higher level of safety limit, the protection component 200 will be activated; the actions of the protection component 200 include but are not limited to: immediately stopping the operation of all related equipment; locking the trolley so that it cannot move; preventing the arm 101a from rotating or tilting in any way, etc.; at the same time, additional safety functions may be activated, such as automatically cutting off the power supply to prevent further damage from occurring.

[0055] S4: different adjustments to the material flow are made through different triggering mechanisms;

[0056] According to the needs of specific application scenarios, various types of trigger mechanisms can be set to implement more flexible and effective control strategies.

[0057] For example, in some cases a quick response may be required to avoid potential danger, while in other cases a certain time window may be desired to allow the system to smoothly transition to a safe mode.

[0058] Each trigger mechanism should be carefully designed to ensure its reliability and accuracy, while also taking into account factors such as ease of maintenance; in short, the present invention provides an efficient and reliable method to manage and control the operation of bucket wheel machines, especially to be able to respond quickly when faced with abnormally high material flow rates, thereby ensuring the safety and continuity of the entire production process.

[0059] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, as well as parameter values, mounting arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, improvements, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to several modifications still falling within the scope of the appended claims.

[0060] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment may not be described (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention).

[0061] It should be understood that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but for those of ordinary skill having the benefit of this disclosure, without undue experimentation, the development effort will be a routine task of design, fabrication, and production.

[0062] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A device for detecting material flow of a bucket wheel excavator, characterized in that: include, An early warning component (100) comprises a body (101), a prompting member (102) and a first detecting member (103), wherein the prompting member (102) is arranged on the body (101), and the first detecting member (103) is arranged on the prompting member (102); as well as, The protection component (200) comprises a transport member (201), a second detection member (202) and a relief member (203), wherein the transport member (201) is arranged on the machine body (101), the second detection member (202) is arranged on the transport member (201), and the relief member (203) is arranged on the transport member (201).

2. The device for detecting material flow of a bucket wheel excavator according to claim 1, characterized in that: The machine body (101) includes a rotatably connected arm (101a), and the arm (101a) enables the transport of coal for transshipment.

3. The device for detecting material flow of a bucket wheel excavator according to claim 2, characterized in that: The prompting member (102) comprises a cantilever belt (102a) fixedly connected to the upper arm (101a), an alarm sensor (102b) fixedly connected to one side of the cantilever belt (102a), and an audible and visual alarm (102c) fixedly connected to the other side of the cantilever belt (102a).

4. The device for detecting material flow of a bucket wheel excavator according to claim 3, characterized in that: The first detection member (103) comprises a first vertical chain (103a) fixedly connected to the upper side of the cantilever belt (102a), and a first universal switch (103b) fixedly connected to the first vertical chain (103a).

5. The device for detecting material flow of a bucket wheel excavator according to claim 3 or 4, characterized in that: The transport member (201) comprises a No. 3 coal conveying belt (201a) arranged on the other side of the machine body (101), and the No. 3 coal conveying belt (201a) is used for transporting and circulating coal.

6. The device for detecting material flow of a bucket wheel excavator according to claim 5, characterized in that: The second detection member (202) comprises a second vertical chain (202a) fixedly connected to the No. 3 coal conveyor belt (201a), and a second universal switch (202b) fixedly connected to the second vertical chain (202a).

7. The device for detecting material flow of a bucket wheel excavator according to claim 6, characterized in that: The relief member (203) comprises a No. 4 coal conveying belt (203a) arranged on the other side of the No. 3 coal conveying belt (201a), and the No. 4 coal conveying belt (203a) is provided with an A belt (203b) and a B belt (203c).

8. A method for detecting material flow of a bucket wheel excavator, characterized in that: The device for detecting the flow of a bucket wheel machine as claimed in any one of claims 1 to 7 comprises the following steps: Using the early warning component (100) and the protection component (200) to detect the material flow of a bucket wheel machine; When a large material flow is detected, the early warning component (100) is triggered; When it is detected that the material flow is too high, the protection component (200) is triggered; The material flow can be adjusted differently through different triggering mechanisms.

9. The method for detecting material flow of a bucket wheel excavator according to claim 8, characterized in that: The protection component (200) is triggered when the material flow is too high, and a chain protection action is initiated to prohibit the truck from moving forward, prohibit the boom (101a) from rotating and pitching, and stop the bucket wheel equipment from working.

10. The method for detecting material flow of a bucket wheel excavator according to claim 9, characterized in that: The internal contacts and external contacts of the switch of the trigger mechanism are disconnected under normal conditions. When impacted by the high material flow at the bottom, the contact circuits between the internal and external contacts are turned on.

Images