Cutting head of heading machine and heading machine

Abstract

The invention discloses a heading machine cutting head and a heading machine, the heading machine cutting head comprises a cutting head body and a plurality of cutting pick holders arranged on the cutting head body, any cutting pick holder is provided with cutting picks, the cutting head of any cutting pick is provided with a temperature detection device, and the temperature detection device is used for monitoring the temperature of the cutting head in real time. Any temperature detection device is in communication connection with the data processing module. The characteristic that the alloy tool bit in the cutting pick is damaged and heated is fully utilized, the temperature detection device is installed on each cutting pick to monitor the temperature change of the tool bit in real time so as to judge the damage degree of the tool bit of each cutting pick, and compared with manual abrasion observation, the accuracy rate is relatively higher, the working efficiency is higher, and the working efficiency is higher. The purposes of timely finding out abrasion of the cutting pick and timely replacing and maintaining the cutting pick can be achieved, the tunneling efficiency can be improved, and meanwhile the service life of related parts is prolonged. The heading machine comprises the cutting head of the heading machine, and has all the characteristics of the cutting head of the heading machine, which are not repeated here.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel boring machines, and in particular to a tunnel boring machine cutting head with a cutter head wear detection function and a tunnel boring machine. Background Art

[0002] A roadheader is a machine used to dig tunnels underground. The head of a roadheader consists of two parts: a pick seat and a pick. During the excavation process of the roadheader, the alloy cutter head of the pick continuously breaks rocks and is subjected to repeated impacts. Eventually, the alloy on the outside of the cutter head breaks, the temperature of the cutter head rises, the excavation efficiency decreases, the service life of related parts is affected, and even the safety of the excavation work is endangered. At this stage, the only way to determine whether the surface of the alloy cutter head needs to be replaced is to observe with the naked eye whether there is abnormal wear. This method is inefficient and is not convenient for timely replacement of the cutter head. It is very easy to cause damage to the equipment and affect the progress of the project.

[0003] In order to solve the above problems, the present invention proposes a roadheader pick wear detection technology. Summary of the invention

[0004] The object of the present invention is to provide a cutting head and a tunnel boring machine with a cutter head wear detection function. The cutting head of the tunnel boring machine makes full use of the characteristic of the alloy cutter head heating up due to damage, and based on the temperature measurement principle, can timely and sensitively detect the wear condition of the cutter head, thereby solving the problem of the inconvenience in observing the wear of the cutter head in the above-mentioned prior art, which leads to the inconvenience in replacing the cutter head in time, aggravating the damage to the equipment and affecting the progress of the project.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] The present invention provides a cutting head for a roadheader, comprising a cutting head body and a plurality of pick seats arranged on the cutting head body, any of the pick seats being provided with picks, and further comprising a data processing module and a temperature detection device, the cutter head of any of the picks being provided with the temperature detection device, the temperature detection device being used to monitor the temperature of the cutter head in real time, any of the temperature detection devices being communicatively connected with the data processing module, and the data processing module being used to perform at least:

[0007] Step 1: receiving a temperature detection signal from any one of the temperature detection devices in real time, and determining whether the temperature detection signal is higher than a threshold value; if the determination result is yes, executing step 2; if the determination result is no, continuing to execute step 1;

[0008] Step 2: Remind to replace the corresponding cutter head.

[0009] Preferably, any one of the temperature detection devices is embedded in the corresponding cutter head.

[0010] Preferably, a temperature detection device is embedded in the cutter head of any pick.

[0011] Preferably, some or all of the temperature detection devices are infrared temperature sensors.

[0012] Preferably, part or all of the temperature detection devices are connected to the corresponding picks via positioning screws.

[0013] Preferably, the measurement range of part or all of the temperature detection devices is 0°C to 2400°C, and the measurement value error is ±0.5°C.

[0014] Preferably, the response time of some or all of the temperature detection devices is 90 ms to 110 ms.

[0015] Preferably, the data processing module is a recorder.

[0016] Preferably, the recorder is used to be installed on a tunnel boring machine, and the recorder has a dashboard capable of displaying temperature.

[0017] The present invention also provides a roadheader, comprising the roadheader cutting head described in any one of the above items.

[0018] Compared with the prior art, the present invention has achieved the following technical effects:

[0019] The tunnel boring machine cutting head proposed in the present invention has a cutter head wear detection function, which fully utilizes the characteristics of the damaged and heated alloy cutter heads in the cutting teeth, and determines the degree of damage to each cutter head by installing a temperature detection device on each cutting tooth to monitor the temperature change of the cutter head in real time. Compared with manual observation of wear, the accuracy is relatively higher and the work efficiency is higher. The purpose of timely detecting the wear of the cutting teeth and replacing and repairing them in time can be achieved, which helps to improve the tunneling efficiency and extend the service life of related parts.

[0020] The tunnel boring machine of the present invention includes the above-mentioned tunnel boring machine cutting head and has all the characteristics of the above-mentioned tunnel boring machine cutting head, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. 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 paying creative work.

[0022] Figure 1 It is a schematic structural diagram of a cutting part of a roadheader disclosed in an embodiment of the present invention;

[0023] Figure 2A schematic diagram of the structure of a cutting head of a roadheader disclosed in an embodiment of the present invention;

[0024] Figure 3 It is a schematic structural diagram of a cutting tooth in a cutting head of a roadheader disclosed in an embodiment of the present invention;

[0025] Figure 4 A schematic diagram of the structure and installation of a temperature detection device disclosed in an embodiment of the present invention;

[0026] Figure 5 A schematic diagram of the structure of a recorder disclosed in an embodiment of the present invention;

[0027] Figure 6 The present invention is a schematic diagram of the installation of a recorder disclosed in an embodiment of the present invention.

[0028] In the figure, the reference numerals are:

[0029] 100. Roadheader;

[0030] 1. Cutting head of the tunnel boring machine; 11. Cutting head body; 12. Cutting tooth seat; 13. Cutting teeth; 14. Cutting head; 15. Temperature detection device; 16. Positioning screws; 17. Lead wire; 18. Recorder; 19. Front panel; 110. Instrument panel; 111. Mounting bracket; 112. Mounting screws;

[0031] 2. Telescopic part;

[0032] 3. Telescopic cylinder;

[0033] 4. Cutting reducer;

[0034] 5. Cutting motor;

[0035] 6. Cover plate;

[0036] 7. Cutting arm. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] One of the objects of the present invention is to provide a cutting head for a roadheader with a cutter head wear detection function. The cutting head for a roadheader makes full use of the characteristic of the alloy cutter head heating up due to damage, and based on the temperature measurement principle, can timely and sensitively detect the wear condition of the cutter head, thereby solving the problem in the prior art that the wear of the cutter head is inconvenient to observe, resulting in the inability to replace the cutter head in time, aggravating the damage to the equipment and affecting the progress of the project.

[0039] Another object of the present invention is to provide a roadheader comprising the above-mentioned roadheader cutting head.

[0040] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0041] Example 1

[0042] The present embodiment provides a cutting head 1 for a roadheader, comprising a cutting head body 11 and a plurality of cutting tooth seats 12 arranged on the cutting head body 11, and also comprising a data processing module and a temperature detection device 15. A cutting tooth 13 is arranged on any cutting tooth seat 12, and a temperature detection device 15 is arranged on the cutter head 14 of any cutting tooth 13. The temperature detection device 15 is used to monitor the temperature of the cutter head 14 in real time. Any temperature detection device 15 is connected to the data processing module for communication, and the data processing module is used to perform at least: Step 1, receiving the temperature detection signal of any temperature detection device 15 in real time, and judging whether the temperature detection signal is higher than the threshold value, if the judgment result is yes, then executing step 2, if the judgment result is no, then continuing to execute step 1; Step 2, reminding to replace the corresponding cutter head 14. It should be noted that the temperature detection signal in step 1 is generally characterized by a temperature value, and the temperature value and the threshold value are judged as common processor functions; the reminder method in step 2 can be a display reminder (requires personnel to check and obtain in time), or it can be configured by an alarm system alarm reminder. The above-mentioned cutting head 1 of the roadheader has a novel and reasonable structure. It makes full use of the characteristics of the damaged alloy cutter head heating up. Based on the temperature measurement principle, the temperature of the cutter head 14 of each pick 13 is monitored in real time. When the temperature measurement value of the temperature detection device 15 is higher than the threshold value, it means that the corresponding cutter head carbide is broken and the corresponding pick 13 is worn, and the pick 13 should be replaced. This solution can accurately measure the temperature of the pick and measure the degree of wear of the pick according to the temperature. Compared with manual observation to judge the degree of wear, this solution has higher working efficiency and higher accuracy, and can achieve the purpose of timely detection of pick wear and timely replacement and maintenance, thereby improving the tunneling efficiency of the roadheader and ensuring the safety of the excavation work.

[0043] In some embodiments, the pick 13 is a conventional finished product, and preferably any temperature detection device 15 is embedded in the corresponding cutter head 14 and close to the root of the cutter head 14 to ensure that the temperature detection device 15 does not affect the normal cutting function of the cutter head 14 on the pick 13. Preferably, one temperature detection device 15 is installed in each cutter head 14 to avoid installing too many and affecting the structural strength of the cutter head 14.

[0044] In some embodiments, the temperature detection device 15 may be a temperature detection element such as a thermocouple or a temperature sensor. In this solution, it is preferred that some or all of the temperature detection devices 15 are infrared temperature sensors.

[0045] In some embodiments, part or all of the temperature detection devices 15 are connected to the corresponding picks 13 via positioning screws 16 .

[0046] In some embodiments, the measurement range of some or all temperature detection devices 15 is 0°C to 2400°C, the measurement error is ±0.5°C, and the response time is 90ms to 110ms. As a preferred solution, the response time of all temperature detection devices 15 is 100ms.

[0047] In some implementations, the aforementioned data processing module is preferably a recorder 18. The recorder 18 is used to be installed on the tunneling machine, and the recorder 18 has a dashboard 110 capable of displaying temperature.

[0048] In some embodiments, Figure 5 and Figure 6 As shown, the recorder 18 further includes a front panel 19, and the instrument panel 110 is fixed through the front panel 19. A mounting bracket 111 is provided on the side of the recorder 18, and can be fixed on the operating table of the tunnel boring machine 100 by mounting screws 112.

[0049] The cutting head 1 of the tunnel boring machine is installed in the cutting part of the tunnel boring machine 100 for use. When in use, the cutting motor 5 drives the telescopic part 2 to rotate through the cutting reducer 4, and at the same time, the telescopic cylinder 3 of the telescopic part 2 drives the cutting arm 7 to extend and retract to push the cutting head 1 to cut. The cutting head 1 directly rotates and cuts the broken coal and rock at the face to dig out the tunnel. The cutting teeth 13 are repeatedly impacted by strong impact loads during the tunneling process, and the carbide cutter head 14 will be brittle and the temperature will rise. Based on this, the present scheme installs a temperature detection device 15 on each cutting tooth 13. The temperature detection device 15 can measure the cutting tooth temperature in real time during the tunnel excavation process and transmit it to the recorder 18. In practical applications, an alarm system can be configured in the recorder 18, and an alarm can be issued when the recorder 18 determines that the measured temperature value is higher than the threshold value, reminding the operator to replace the corresponding cutting teeth 13; the operator can also directly observe the temperature measurement values ​​of each temperature detection device 15 in real time through the instrument panel 110 of the recorder 18 at the operating table of the tunnel boring machine 100, so as to promptly and accurately find the damaged cutting teeth, facilitate their replacement and maintenance in time, improve the tunneling efficiency, and avoid damage to other parts of the equipment. It should be noted that the cutting function of the above-mentioned tunnel boring machine cutting head 1 has not been changed, and its installation form and working principle in the tunnel boring machine are conventional operations in the field, which will not be repeated here.

[0050] It can be seen that this solution makes full use of the characteristics of the damaged and heated alloy cutter head in the pick 13. By installing a temperature detection device on each pick to monitor the temperature change of the cutter head in real time, the degree of damage to each pick cutter head can be determined. Compared with manual observation of wear, the accuracy is relatively higher and the work efficiency is higher. The purpose of timely detection of pick wear and timely replacement and maintenance can be achieved, which helps to improve excavation efficiency and extend the service life of related components.

[0051] Example 2

[0052] This embodiment provides a tunnel boring machine 100, which has a cutting part, such as Figure 1 As shown, the cutting part includes the tunnel boring machine cutting head 1 disclosed in Example 1, the recorder 18 is installed on the tunnel boring machine operating table, and the lead wires 17 of each temperature detection device 15 extend to the tunnel boring machine operating table and are connected to the recorder 18 for communication. When in use, the cutting motor 5 drives the telescopic part 2 to rotate through the cutting reducer 4, and at the same time, the telescopic cylinder 3 of the telescopic part 2 drives the cutting arm 7 to extend and retract to push the cutting head 1 to cut, and the cutting head 1 directly rotates on the face to cut and crush the coal and rock to dig out the tunnel. The cutting teeth 13 are repeatedly impacted by strong impact loads during the tunneling process, and the carbide cutter head 14 will be brittle and the temperature will rise. At the same time, the temperature detection device 15 can measure the cutting tooth temperature in real time during the tunnel excavation process and transmit it to the recorder 18. In practical applications, an alarm system can be configured in the recorder 18, and an alarm can be issued when the recorder 18 determines that the measured temperature value is higher than the threshold value, reminding the operator to replace the corresponding cutting teeth 13; the operator can also directly observe the temperature measurement values ​​of each temperature detection device 15 in real time through the instrument panel 110 of the recorder 18 at the operating table of the tunnel boring machine 100, so as to promptly and accurately find the damaged cutting teeth, facilitate their replacement and maintenance in time, improve the tunneling efficiency, and avoid damage to other parts of the equipment. It should be noted that the cutting function of the above-mentioned tunnel boring machine cutting head 1 has not been changed, and its installation form and working principle in the tunnel boring machine are conventional operations in the field, which will not be repeated here.

[0053] It can be seen that this scheme makes full use of the characteristics of the damaged and heated alloy cutter head in the pick. By installing a temperature detection device on each pick to monitor the temperature change of the cutter head in real time, the degree of damage to each pick cutter head can be determined. Compared with manual observation of wear, the accuracy is relatively higher and the work efficiency is higher. The purpose of timely detection of pick wear and timely replacement and maintenance can be achieved, which helps to improve excavation efficiency and extend the service life of related parts.

[0054] It should be noted that the structures, proportions, sizes, etc. drawn in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0055] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A cutting head for a roadheader, comprising a cutting head body (11) and a plurality of pick seats (12) arranged on the cutting head body (11), wherein a pick (13) is arranged on any of the pick seats (12), and characterized in that: The invention also comprises a data processing module and a temperature detection device (15), wherein the temperature detection device (15) is provided on the cutter head (14) of any of the pick teeth (13), and the temperature detection device (15) is used to monitor the temperature of the cutter head (14) in real time, and any of the temperature detection devices (15) is communicatively connected with the data processing module, and the data processing module is used to execute at least: Step 1, receiving a temperature detection signal from any one of the temperature detection devices (15) in real time, and judging whether the temperature detection signal is higher than a threshold value, if the judgment result is yes, executing step 2, if the judgment result is no, continuing to execute step 1; Step 2: Remind to replace the corresponding cutter head (14).

2. The cutting head of the tunnel boring machine according to claim 1, characterized in that: Any one of the temperature detection devices (15) is embedded in the interior of the corresponding cutter head (14).

3. The cutting head of the tunnel boring machine according to claim 2, characterized in that: A temperature detection device (15) is embedded in the cutter head (14) of any pick (13).

4. The cutting head of a roadheader according to any one of claims 1 to 3, characterized in that: Part or all of the temperature detection devices (15) are infrared temperature sensors.

5. The cutting head of a roadheader according to any one of claims 1 to 3, characterized in that: Part or all of the temperature detection device (15) is connected to the corresponding pick (13) via a positioning screw (16).

6. The cutting head of a roadheader according to any one of claims 1 to 3, characterized in that: The measurement range of part or all of the temperature detection devices (15) is 0°C to 2400°C, and the measurement value error is ±0.5°C.

7. The cutting head of a roadheader according to any one of claims 1 to 3, characterized in that: The response time of part or all of the temperature detection devices (15) is 90 ms to 110 ms.

8. The cutting head of a roadheader according to any one of claims 1 to 3, characterized in that: The data processing module is a recorder (18).

9. The cutting head of the roadheader according to claim 8, characterized in that: The recorder (18) is used to be installed on a roadheader, and the recorder (18) has a dashboard capable of displaying temperature.

10. A tunnel boring machine, characterized in that: It comprises the cutting head (1) of a roadheader as claimed in any one of claims 1 to 9.

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