CN110952428A - Tool bit for heavy machinery tool drum and wear state alarm system thereof - Google Patents
Tool bit for heavy machinery tool drum and wear state alarm system thereof Download PDFInfo
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- CN110952428A CN110952428A CN201911214563.XA CN201911214563A CN110952428A CN 110952428 A CN110952428 A CN 110952428A CN 201911214563 A CN201911214563 A CN 201911214563A CN 110952428 A CN110952428 A CN 110952428A
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- cutter head
- tool bit
- bit body
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
- E01C23/08—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades
- E01C23/085—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades using power-driven tools, e.g. vibratory tools
- E01C23/088—Rotary tools, e.g. milling drums
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention provides a cutter head for a heavy-duty machine tool drum and a wear state alarm system thereof, wherein the cutter head for the heavy-duty machine tool drum comprises: the tool bit body is made of metal materials and is in a bullet head shape, the bottom surface of the tool bit body is provided with an opening, the conducting medium extends to the inside of the upper end of the tool bit body from the opening of the bottom surface of the tool bit body, the conducting medium is exposed outside and used for being connected with an external circuit at the opening of the bottom surface of the tool bit body, and when the upper end of the tool bit body is worn, the conducting medium is exposed outside at the upper end of the tool bit body. The wear state alarm system produces alarm signals and display signals according to the wear condition of the cutter head, and reminds through alarming and displaying, so that a user can know that the cutter head is damaged and timely replace the cutter head at the first time.
Description
Technical Field
The invention relates to the field of machinery, in particular to a cutter head for a heavy machinery cutter drum and a wear state alarm system thereof.
Background
Currently, a cutter drum is commonly used in heavy machinery such as milling equipment, crushing equipment, cutting equipment, and the like. Be provided with numerous tool bits on the cutter drum, the tool bit can wear out the inefficacy gradually in daily work, needs in time to change. At present, aiming at the condition that the cutter head is damaged, the common treatment mode is as follows: and the mechanical equipment is overhauled by manual observation after working is finished. However, such manual inspection and repair methods cannot detect the damaged tool bit in the first time, and if the damaged tool bit cannot be detected and replaced in time to continue working, the subsequent working of the mechanical equipment may be seriously affected.
Disclosure of Invention
The present invention is made to solve the above problems, and an object of the present invention is to provide a cutter head for a heavy machinery cutter drum and a wear state alarm system thereof, so as to know a damage condition of the cutter head in a working state at a first time.
The invention provides a cutter head for a heavy machinery cutter drum, which is characterized by comprising: the tool bit body is made of metal materials and is in a bullet head shape, the bottom surface of the tool bit body is provided with an opening, the conducting medium extends to the inside of the upper end of the tool bit body from the opening of the bottom surface of the tool bit body, the conducting medium is exposed outside the opening of the bottom surface of the tool bit body and is used for being connected with an external circuit, and when the upper end of the tool bit body is worn, the conducting medium is exposed outside the upper end of the tool bit body.
In the cutter head for the heavy machinery cutter drum provided by the invention, the cutter head also has the following characteristics: the tool bit comprises a tool bit body and a conductive medium, wherein a cavity is formed in the tool bit body from a bottom opening to the upper end of the tool bit body, the conductive medium is a metal wire, the metal wire enters the cavity, two ends of the metal wire extend out from the bottom opening, and an insulating layer is arranged between the metal wire and the cavity.
In the cutter head for the heavy machinery cutter drum provided by the invention, the cutter head also has the following characteristics: wherein, the insulating layer is any one of rubber, insulating varnish and polyester fiber which are filled between the outer wall of the metal wire and the inner wall of the cavity.
In the cutter head for the heavy machinery cutter drum provided by the invention, the cutter head also has the following characteristics: wherein, the insulating layer is an insulating rubber coating coated on the metal wire.
In the cutter head for the heavy machinery cutter drum provided by the invention, the cutter head also has the following characteristics: the conductive medium comprises conductive liquid filled in the cavity and a positive electrode and a negative electrode which extend into the conductive liquid from the bottom surface opening position.
In the cutter head for the heavy machinery cutter drum provided by the invention, the cutter head also has the following characteristics: wherein the conductive liquid is an ionic solution.
In the cutter head for the heavy machinery cutter drum provided by the invention, the cutter head also has the following characteristics: the cavity comprises a first cavity area extending from the bottom surface opening hole along the axial direction of the cutter head body and a second cavity area vertically communicated with the first cavity area in the upper end of the cutter head body.
In the cutter head for the heavy machinery cutter drum provided by the invention, the cutter head also has the following characteristics: the conductive medium is a metal wire, one end of the metal wire is exposed outside the opening of the bottom surface, the other end of the metal wire extends into the upper end of the tool bit body, the metal wire comprises an exposed section and a cladding section, the exposed section is correspondingly positioned inside the upper end of the tool bit body and is in direct contact with the tool bit body, and the cladding section is coated with an insulating rubber sheet.
The invention also provides a wear state alarm system for the cutter head of the heavy machinery cutter drum, which is characterized by comprising the following components: the tool bit system consists of a plurality of tool bits arranged on the heavy machinery tool drum and a plurality of circuits correspondingly connected with the tool bits; the signal conversion module is connected with the cutter head system, comprises an analog-to-digital converter and a concentrator and is used for performing analog-to-digital conversion and regeneration, shaping and amplification on the electric signal; the memory stores the corresponding relation between the tool bit and the circuit in the tool bit system; the central processing module is connected with the memory and the signal conversion module and used for analyzing and processing data and signals of the memory and the signal conversion module and generating corresponding alarm signals and display signals according to the corresponding relation between the tool bit and the circuit when the tool bit is worn to a certain degree; the display is in data connection with the central processing module and displays the wear condition of the cutter head according to a display signal output by the central processing module; the alarm is connected with the central processing module in a data mode, and alarms and reminds the abrasion condition of the cutter head according to an alarm signal output by the central processing module, wherein the cutter head is the cutter head for the heavy machinery cutter drum.
In the wear state alarm system of the cutter head of the heavy machinery cutter drum provided by the invention, the wear state alarm system also has the following characteristics: the data connection form of the alarm and the central processing module is through signal transmission lines or wireless connection, and the data connection form of the display and the central processing module is through signal transmission lines or wireless connection.
The invention has the following functions and effects:
in the cutter head for the heavy machinery cutter drum and the wear state alarm system thereof, when the cutter head in the shape of a bullet head is excessively worn, so that an internal conductive medium cannot form a closed loop with an external circuit (namely, the external circuit is open), and further in the wear state alarm system, a signal conversion module converts an electric signal of the circuit of the cutter head system into a digital signal in real time, performs regeneration, shaping, amplification and processing on the digital signal, and transmits the digital signal to a central processing module for analysis and processing, therefore, when the cutter head in the heavy machinery cutter drum is excessively worn to cause the circuit to be open, the central processing module generates a corresponding alarm signal and a corresponding display signal, the cutter head wear condition is reminded through an alarm, the wear condition of the cutter head is displayed through a display, and a user can know that the cutter head is damaged and know which specific cutter head or heads are damaged at first time, so that the replacement can be carried out in time at the first time.
Drawings
Fig. 1 is an external schematic view of a cutter head for a heavy machinery cutter drum in embodiment 1 of the present invention;
fig. 2 is a sectional view of a cutter head for a heavy machinery cutter drum in embodiment 1 of the present invention;
FIG. 3 is an enlarged view at A in FIG. 2;
FIG. 4 is a schematic view showing the cutter head mounted on the cutter drum in embodiment 1 of the present invention;
fig. 5 is a block diagram of a wear state warning system for a cutter head of a heavy machinery cutter drum in embodiment 1 of the present invention;
fig. 6 is a sectional view of a cutter head for a heavy machinery cutter drum in embodiment 2 of the present invention;
FIG. 7 is an enlarged view at B in FIG. 6;
fig. 8 is a sectional view of a cutter head for a heavy machinery cutter drum in embodiment 3 of the invention;
FIG. 9 is an enlarged view at C in FIG. 8;
fig. 10 is a sectional view of a cutter head for a heavy machinery cutter drum in embodiment 4 of the invention;
fig. 11 is an enlarged view at D in fig. 10.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the following embodiments are combined with the accompanying drawings to specifically describe the cutter head for the heavy machinery cutter drum and the wear state alarm system thereof.
< example 1>
A cutter head 100 for a heavy machinery cutter drum comprises a cutter head body 10, and the cutter head body 10 is made of a metal material and is in a bullet head shape (as shown in figure 1). As shown in fig. 2 to 3, the bottom surface of the cutting head body 10 is provided with an opening, the opening extends towards the inside of the upper end of the cutting head body to form a cavity 11, the cavity 11 includes a first cavity area 111 extending from the opening of the bottom surface along the axial direction of the cutting head body and a second cavity area 112 vertically communicating with the first cavity area 111 inside the upper end of the cutting head body, that is, the cavity 11 is in a "T" shape. A metal wire 12 is arranged in the cavity 11, the arrangement of the metal wire 12 in the cavity also forms a T shape, two ends of the metal wire 12 extend out from the opening of the bottom surface and are exposed outside, and the metal wire is used as a connecting wire for conducting a circuit and is used for connecting an external circuit (not shown). In this embodiment, an insulating layer 13 is provided between the metal wire 12 and the cavity 11. The insulating layer 13 is any one of rubber, insulating varnish and polyester fiber filled between the outer wall of the metal wire 12 and the inner wall of the cavity 11. The metal wire 12 makes conduction to an external circuit, and the metal wire 12 is insulated from the bit body 10 made of a metal material due to the presence of the insulating layer 13.
The state in which the cutter head 100 of the present embodiment is mounted on the cutter drum 500 is shown in fig. 4. The cutter drum 500 drives the cutter head 100 to rotate, so as to perform milling, crushing or cutting, the cutter head 100 will be gradually worn during operation, the insulating layer 13 will be exposed outside after the upper end portion of the cutter head 100 is gradually worn, the metal wire 12 located in the first cavity region 111 will be exposed outside due to continuous wear (for example, points e and f shown in fig. 2 may be exposed in this state), and the metal wire 12 will be broken due to continuous wear, and when the metal wire 12 is broken, the external circuit will be in an open circuit state.
As shown in fig. 5, the present embodiment also provides a tool bit wear state warning system 1, which includes: the tool bit system 2, the signal conversion module 3, the memory 4, the central processing module 5, the display 6 and the alarm 7.
The cutter head system 2 is composed of a plurality of cutter heads 100 mounted on a heavy machinery cutter drum and a plurality of circuits (not shown) correspondingly connected with the cutter heads.
The signal conversion module 3 is connected with the cutter head system 2, the signal conversion module 3 comprises an analog-digital converter and a concentrator, the analog-digital converter is used for converting the electric signal into a digital signal, loss exists in signal transmission, and attenuated signals can be shaped, amplified and sent out through the concentrator. The digital signal which is high in quality and convenient to analyze can be obtained through the processing of the signal conversion module 3.
The memory 5 stores the correspondence between the tool bit 100 and the circuit in the tool bit system 2.
The central processing module 4 is a computer system which can adopt an upper computer, a singlechip and the like and has data processing capability. The central processing module 4 is connected to the memory 5 and the signal conversion module 3, and is configured to analyze and process data and signals of the memory 5 and the signal conversion module 3, and when a circuit open condition occurs in the tool bit system 2 (according to the above, that is, when the tool bit 100 is worn to be damaged), the central processing module 4 generates a corresponding alarm signal and a corresponding display signal according to a corresponding relationship between the tool bit and the circuit.
The display 6 is in data connection with the central processing module and displays the wear condition of the tool bit according to the corresponding relation between the tool bit and the circuit according to the display signal output by the central processing module 4. The alarm 7 is in data connection with the central processing module 4 and alarms and reminds the abrasion condition of the cutter head according to an alarm signal output by the central processing module 4. The data connection form of the alarm 7, the display 6 and the central processing module 4 can adopt connection through signal transmission lines or wireless connection according to actual conditions.
When the cutter head damage condition appears in the drum under operating condition, the user can know that the cutter head is damaged through display 6 and alarm 7 the very first time to can know which specific cutter head is damaged through display 6, thereby carry out the pertinence change at the very first time.
< example 2>
In the present embodiment, the same structures as those of embodiment 1 are denoted by the same reference numerals therein, and the corresponding description is omitted.
As shown in fig. 6 to 7, the present embodiment provides a cutter head 200 for a heavy machinery cutter drum, which is different from the cutter head 100 for a heavy machinery cutter drum of embodiment 1 in that:
the outer wall of the metal wire 12 is coated with a layer of insulating rubber 13', that is, a wire with insulating rubber is adopted. The two ends of the conducting wire of the insulating rubber sheet extend out from the opening of the bottom surface and are exposed outside, the metal conducting wire 12 is partially connected with an external circuit, and the insulating rubber sheet 13 plays a role of insulation with the cutter head body 10.
In this embodiment, the insulating rubber sheet 13' is directly covered on the outer wall of the metal wire 12 to serve as an insulating layer, and the same insulating effect as that of embodiment 1 can be achieved. Embodiment 1 adopts the insulating layer 13 to fill between the outer wall of the metal wire 12 and the inner wall of the cavity 11, which can prevent the position of the metal wire from being stable and difficult to move. And adopt insulating rubber 13 'directly to cover in this embodiment and regard as the insulating layer at 12 outer walls of metal conductor, can make wire and insulating material installation more convenient, directly adopt take insulating rubber's wire can. The arrangement of the insulating layer in this embodiment and embodiment 1 therefore plays a different role.
The tool bit 200 of the present embodiment is mounted on the cutter drum in the same manner as the tool bit 100 of embodiment 1, and the tool bit is worn similarly to embodiment 1, and in the process of gradual wear, the tool bit 200 of the present embodiment first wears to the position of the cavity 111, then wears the insulating rubber 13', and then wears the metal wire 12 to break, so that the external circuit is in an open state.
The present embodiment also provides a cutter head wear state alarm system, which is different from the cutter head wear state alarm system 1 in embodiment 1 in that: the cutter head 200 is adopted in the cutter head of the embodiment, the rest of the arrangement in the system is the same as that of the embodiment 1, and the working principle is also the same as that of the embodiment 1, so that the description is omitted.
< example 3>
In the present embodiment, the same structures as those of embodiment 1 are denoted by the same reference numerals therein, and the corresponding description is omitted.
As shown in fig. 8 to 9, the present embodiment provides a cutter head 300 for a heavy machinery tool drum, which is different from the cutter head 100 for a heavy machinery tool drum of embodiment 1 in that:
the bottom surface of the tool bit body 10 is provided with an opening, and the opening extends towards the inside of the upper end of the tool bit body 10 to form a cavity 11 ". The cavity 11 "comprises a first cavity area 113 extending in the axial direction of the head body at the bottom surface opening and a second cavity area 114 communicating perpendicularly with the first cavity area 113 inside the upper end of the head body. As shown in fig. 9, the second cavity region 114 includes a transverse region and an upper longitudinal region communicating with the transverse region, and a plurality of transverse regions 114a and a plurality of longitudinal regions 114b are provided in this embodiment. The cavity 11' is filled with a conductive liquid 15, and is provided with a positive electrode 16 and a negative electrode 17, the positive electrode 16 and the negative electrode 17 extend into the conductive liquid 15 from the bottom surface opening, and the bottom surface opening is sealed to prevent liquid leakage. The positive electrode 16 and the negative electrode 17 extend out of the opening of the bottom surface and are exposed outside, the positive electrode 16 and the negative electrode are conducted through the conductive liquid 15, and the positive electrode 16 and the negative electrode 17 are communicated with the conductive liquid 15 to be connected into an external circuit together as a lead structure. The conductive liquid 15 is preferably any one of salt strong electrolyte ion solutions such as sodium chloride solution and copper sulfate solution, and has the characteristics of good conductivity and weak corrosivity.
The tool bit 300 of the present embodiment is mounted on the tool drum in the same manner as the tool bit 100 of embodiment 1, and the tool bit is worn similarly to embodiment 1, and in the process of gradual wear, when the tool bit 300 of the present embodiment is worn to the first cavity area 113, the conductive liquid 15 inside will be leaked, and when the conductive liquid 15 is leaked, the positive electrode 16 and the negative electrode 17 are no longer conducted, so that the external circuit is in an open state.
The present embodiment also provides a cutter head wear state alarm system, which is different from the cutter head wear state alarm system 1 in embodiment 1 in that: in this embodiment, the cutter head is the cutter head 300, and the rest of the arrangement in the system is the same as that in embodiment 1, and the working principle is also the same as that in embodiment 1, which is not described herein again.
< example 4>
In the present embodiment, the same structures as those of embodiment 1 are denoted by the same reference numerals therein, and the corresponding description is omitted.
As shown in fig. 10 to 11, the present embodiment provides a cutter head 400 for a heavy machinery tool drum, which is different from the cutter head 100 for a heavy machinery tool drum of embodiment 1 in that:
the bottom surface of the bit body 10 is provided with an opening through which a metal wire 18 extends into the upper end interior of the bit body 10. The metal wire 18 comprises an exposed section and a cladding section, the exposed section is correspondingly positioned inside the upper end of the tool bit body and is in direct contact with the tool bit body, and the cladding section is coated with an insulating rubber sheet 19. The lower extreme of wire 18 exposes in the outside of bottom surface trompil department for connect external circuit, and the upper end of wire 18 contacts with tool bit body 10, because wire 18 is the metal material with tool bit body 10, so wire 18 switches on with tool bit body 10, and the lower extreme cladding of wire 18 has insulating rubber 19 to appear insulating with tool bit body 10 in the lower extreme.
The installation manner of the cutter head 400 of the present embodiment on the cutter drum is the same as the installation manner of the cutter head 100 of the embodiment 1, and the condition that the cutter head is worn is also similar to the embodiment 1, in the process that the cutter head 400 of the present embodiment is gradually worn, the exposed part of the upper part of the metal wire 18 is worn firstly, and when the exposed part is gradually worn to the cladding section with the insulating rubber 19, because the metal wire 18 is insulated from the cutter head body 10, the wearing process is the process that the metal wire 18 and the cutter head body 10 are changed from the conducting state to the insulating state.
The present embodiment also provides a cutter head wear state alarm system, which is different from the cutter head wear state alarm system 1 in embodiment 1 in that: in this embodiment, the cutter head 400 is adopted, and the working principle is the same as that of embodiment 1, so that the detailed description is omitted. When the metal wire 18 and the tool bit body 10 are changed from a conducting state to an insulating state, the electric signal output by the corresponding circuit changes, the signal conversion module correspondingly converts the signal, and the central processing module generates a corresponding alarm signal and a corresponding display signal according to the digital signal obtained by processing and the corresponding relation between the tool bit and the circuit. Then remind the user in time to change the damage tool bit through display and alarm.
The above embodiments are preferred examples of the present invention, and are not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (10)
1. A cutter head for a heavy machinery cutter drum, comprising:
the cutter head body is made of metal materials and is in a bullet shape, the bottom surface of the cutter head body is provided with an opening,
a conductive medium extending from the bottom surface opening of the bit body to an inside of an upper end of the bit body, the conductive medium being exposed to an outside at the bottom surface opening of the bit body and used for connecting an external circuit,
wherein when the upper end portion of the bit body is worn, the conductive medium is exposed at the upper end portion of the bit body.
2. The cutter head for a heavy machinery cutter drum according to claim 1, wherein:
wherein a cavity is formed in the tool bit body from the bottom surface opening hole to the inner part of the upper end of the tool bit body,
the conductive medium is a metal wire, and the metal wire,
the metal wire enters the cavity and two ends of the metal wire extend out of the opening on the bottom surface,
an insulating layer is disposed between the metal wire and the cavity.
3. The cutter head for a heavy machinery cutter drum according to claim 2, wherein:
the insulating layer is made of any one of rubber, insulating paint and polyester fiber filled between the outer wall of the metal wire and the inner wall of the cavity.
4. The cutter head for a heavy machinery cutter drum according to claim 2, wherein:
the insulating layer is an insulating rubber coating coated on the metal wire.
5. The cutter head for a heavy machinery cutter drum according to claim 1, wherein:
wherein a cavity is formed in the tool bit body from the bottom surface opening hole to the inner part of the upper end of the tool bit body,
the conductive medium comprises conductive liquid filled in the cavity and a positive electrode and a negative electrode which extend into the conductive liquid from the opening of the bottom surface.
6. The cutter head for a heavy machinery cutter drum according to claim 5, wherein:
wherein the conductive liquid is an ionic solution.
7. The cutter head for a heavy machinery cutter drum according to claim 2 or 5, wherein:
wherein the cavity comprises a first cavity region extending from the bottom aperture in an axial direction of the bit body and a second cavity region vertically communicating with the first cavity region within the upper end of the bit body.
8. The cutter head for a heavy machinery cutter drum according to claim 1, wherein:
wherein the conductive medium is a metal wire,
one end of the metal lead is exposed outside the opening on the bottom surface, the other end of the metal lead extends into the upper end of the cutter head body,
the metal lead comprises an exposed section and a cladding section,
the exposed section is correspondingly positioned in the upper end of the tool bit body and is directly contacted with the tool bit body,
the cladding section is wrapped with an insulating rubber sheet.
9. A wear status warning system for a cutter head of a heavy machinery cutter drum, comprising:
the tool bit system consists of a plurality of tool bits arranged on the heavy machinery tool drum and a plurality of circuits correspondingly connected with the tool bits;
the signal conversion module is connected with the cutter head system, comprises an analog-to-digital converter and a concentrator and is used for performing analog-to-digital conversion and regeneration, shaping and amplification on the electric signal;
the memory stores the corresponding relation between the tool bit and the circuit in the tool bit system;
the central processing module is connected with the memory and the signal conversion module and used for analyzing and processing data and signals of the memory and the signal conversion module and generating corresponding alarm signals and display signals according to the corresponding relation between the tool bit and the circuit when the tool bit is worn to a certain degree;
the display is in data connection with the central processing module and displays the wear condition of the cutter head according to the display signal output by the central processing module;
the alarm is in data connection with the central processing module and is used for alarming and reminding the abrasion condition of the cutter head according to an alarm signal output by the central processing module;
the cutter head for the heavy machinery cutter drum is as claimed in any one of claims 1 to 8.
10. The wear state warning system of claim 9, wherein:
wherein the data connection form of the alarm and the central processing module is signal transmission line connection or wireless connection,
the data connection form of the display and the central processing module is connection through a signal transmission line or wireless connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911214563.XA CN110952428A (en) | 2019-12-02 | 2019-12-02 | Tool bit for heavy machinery tool drum and wear state alarm system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911214563.XA CN110952428A (en) | 2019-12-02 | 2019-12-02 | Tool bit for heavy machinery tool drum and wear state alarm system thereof |
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| CN110952428A true CN110952428A (en) | 2020-04-03 |
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| CN201911214563.XA Pending CN110952428A (en) | 2019-12-02 | 2019-12-02 | Tool bit for heavy machinery tool drum and wear state alarm system thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287199A (en) * | 2011-06-24 | 2011-12-21 | 北京市三一重机有限公司 | Current interruption inductive multistage abrasion detection tool for shield machine |
| CN102286913A (en) * | 2010-04-06 | 2011-12-21 | 宝马格有限公司 | Mill cylinder for a floor milling machine and floor milling machine |
| US20140239700A1 (en) * | 2013-02-22 | 2014-08-28 | Bomag Gmbh | Milling Drum Comprising A, More Particularly Replaceable, Material Guiding Device And Material Guiding Device For A Milling Drum |
| CN106050233A (en) * | 2015-04-09 | 2016-10-26 | 乔伊·姆·特拉华公司 | System and method of detecting dull and worn cutter bits |
| CN205778864U (en) * | 2016-06-20 | 2016-12-07 | 黄河科技学院 | The abrasion of pick matrix and the coal winning machine cutting bit device of rotating speed can be monitored |
-
2019
- 2019-12-02 CN CN201911214563.XA patent/CN110952428A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102286913A (en) * | 2010-04-06 | 2011-12-21 | 宝马格有限公司 | Mill cylinder for a floor milling machine and floor milling machine |
| CN102287199A (en) * | 2011-06-24 | 2011-12-21 | 北京市三一重机有限公司 | Current interruption inductive multistage abrasion detection tool for shield machine |
| US20140239700A1 (en) * | 2013-02-22 | 2014-08-28 | Bomag Gmbh | Milling Drum Comprising A, More Particularly Replaceable, Material Guiding Device And Material Guiding Device For A Milling Drum |
| CN106050233A (en) * | 2015-04-09 | 2016-10-26 | 乔伊·姆·特拉华公司 | System and method of detecting dull and worn cutter bits |
| CN205778864U (en) * | 2016-06-20 | 2016-12-07 | 黄河科技学院 | The abrasion of pick matrix and the coal winning machine cutting bit device of rotating speed can be monitored |
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