CN212110212U - Oil level detection device for cutting arm bearing of cantilever heading machine - Google Patents
Oil level detection device for cutting arm bearing of cantilever heading machine Download PDFInfo
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- CN212110212U CN212110212U CN202020636517.0U CN202020636517U CN212110212U CN 212110212 U CN212110212 U CN 212110212U CN 202020636517 U CN202020636517 U CN 202020636517U CN 212110212 U CN212110212 U CN 212110212U
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Abstract
The utility model relates to a development machine maintains the technical field, concretely relates to cantilever development machine cutting arm bearing oil level detection device, including oil level inductive switch and protection component, set up on the connecting tube of cutting arm and draw the oilhole, draw the inner of oilhole and the bearing chamber intercommunication in the connecting tube, oil level inductive switch connects in the oil hole that draws of connecting tube, and the one end that inserts on the oil level inductive switch and draw the oilhole is equipped with the inductive switch detecting head, draws the oilhole the position and is less than bearing chamber lubricating oil liquid level height when cutting arm level attitude, and oil level inductive switch is connected with development machine main control ware electricity; the protection component is fixedly connected to the outer side of the connecting cylinder. The utility model discloses can realize the automated inspection to the big bearing oil level of cutting arm, can not only improve detection work efficiency, reduce the incident probability, good reliability, convenient in time discover the oil leak and change floating seal moreover.
Description
Technical Field
The utility model relates to a maintenance technical field is maintained to the entry driving machine, concretely relates to cantilever entry driving machine cutting arm bearing oil level detection device.
Background
The cutting arm is a core component of the cantilever excavator, and the reliability of the cutting arm directly influences the performance and the working efficiency of the whole excavator. The big bearing is positioned at the front end of the cutting arm and bears most of axial force and radial force generated by tunneling, so that the normal operation of the big bearing is very important. In the actual application process of the cutting arm on site, most of the large bearings are damaged in advance due to oil shortage and muddy water pollution caused by damage of floating seals. If the oil leakage can be found in time and the floating seal can be replaced, the bearing can be prevented from being damaged in advance, so that the oil level condition of the bearing needs to be checked frequently.
At present, the oil level of a cutting arm is mainly checked manually, a cutting part lifting oil cylinder is adjusted to enable the cutting part to be in a position approximately horizontal to the ground during checking, then a screw plug of an oil spilling port on a connecting cylinder is unscrewed, and the liquid level height of lubricating oil in a bearing cavity is observed. Since the oil spilling opening is more than 2 meters away from the ground when the cutting arm is in a horizontal state, the cutting arm can be checked only by using a tool to be lifted or using an escalator. Therefore, the manual inspection is not only poor in reliability and low in working efficiency, but also unsafe.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the problem that above-mentioned exists and not enough, provide a cantilever entry driving machine cutting arm bearing oil level detection device, can realize the automated inspection to the big bearing oil level of cutting arm, can not only improve detection work efficiency, reduce field work personnel and take place the incident probability, good reliability, convenient in time discover the oil leak and change floating seal moreover, avoid the bearing to damage in advance.
In order to realize the purpose of the utility model, the technical proposal of the utility model is that:
a cantilever roadheader cutting arm bearing oil level detection device comprises an oil level induction switch and a protection assembly, wherein an oil guide hole is formed in a connecting barrel of a cutting arm, the inner end of the oil guide hole is communicated with a bearing cavity in the connecting barrel, the oil level induction switch is connected into the oil guide hole of the connecting barrel, an induction switch detecting head is arranged at one end, inserted into the oil guide hole, of the oil level induction switch, and the position of the oil guide hole is lower than the lubricating oil level of the bearing cavity when the cutting arm is in a horizontal state; the protection assembly is fixedly connected to the outer side of the connecting cylinder and used for protecting the oil level inductive switch and the inductive switch cable.
Further, in the oil level detection device for the cutting arm bearing of the cantilever excavator, the oil level sensing switch is electrically connected with a main controller of the excavator, and the main controller of the excavator is also electrically connected with a display device and/or a voice warning device.
Further, in the oil level detection device for the cutting arm bearing of the cantilever excavator, the oil level detection device for the cutting arm bearing of the cantilever excavator further comprises a linear displacement sensor, the linear displacement sensor is mounted on the cutting arm lifting oil cylinder and used for detecting the position of the cutting arm relative to the ground, and the linear displacement sensor is electrically connected with a main controller of the excavator.
Further, in foretell cantilever entry driving machine cutting arm bearing oil level detection device, the protection subassembly includes protection piece, guard plate, preceding protective cover, protective cylinder and back protective cover down, go up protection piece and protection piece down and set up respectively on inductive switch and below to on the outer disc of coupling cylinder, go up the one side welding that is close to the cutterhead between protection piece and the lower protection piece and have the guard plate, preceding protective cover is fixed on last protection piece and lower protection piece, and the back protective cover is fixed on coupling cylinder rear portion flange, and the protective cylinder is located between preceding protective cover and the back protective cover, and welds on the outer disc of coupling cylinder along the axis direction of coupling cylinder.
Further, in the oil level detection device for the bearing of the cutting arm of the cantilever excavator, the upper protection block and the lower protection block are provided with threaded holes, and the front protection cover is fixed on the upper protection block and the lower protection block through bolts; the rear protective cover is fixed on the flange at the rear part of the connecting barrel through bolts.
Further, in the oil level detection device for the bearing of the cutting arm of the cantilever excavator, the front protective cover comprises an arc-shaped cover plate and a side plate connected to one side of the arc-shaped cover plate, the outer side edge of the side plate is set to be an arc matched with the radian of the arc-shaped cover plate, the inner side edge of the side plate is set to be an arc matched with the outer circular surface of the connecting cylinder, the side plate is provided with a connecting hole and a cable passing groove, and the front protective cover is fixed to the upper protective block and the lower protective block through the side plate.
Further, in the oil level detection device for the bearing of the cutting arm of the cantilever excavator, the rear protective cover comprises a connecting plate and a cable protective cover, the inner side edge and the outer side edge of the connecting plate are both provided with arc lines, the connecting plate is provided with a connecting hole, the rear protective cover is fixed on a flange at the rear part of the connecting cylinder through the connecting plate, one end of the cable protective cover is welded on the plate surface of the connecting plate, and the other end of the cable protective cover covers the outer side of the end part of the protective cylinder.
Further, in the oil level detection device for the bearing of the cutting arm of the cantilever excavator, the inner wall of one end, close to the outer circular surface of the connecting cylinder, of the oil guide hole is provided with threads, and the induction switch is screwed on the connecting cylinder through the oil guide hole.
The utility model discloses a cantilever entry driving machine cutting arm bearing oil level detection device's beneficial effect:
the oil level detection device for the bearing of the cutting arm of the cantilever excavator can realize the automatic detection of the oil level of the large bearing of the cutting arm by arranging the oil level inductive switch for detecting whether the horizontal position of the cutting arm is lack of oil on the connecting cylinder, can improve the detection working efficiency and reduce the probability of safety accidents of field workers, the main controller of the excavator is electrically connected with the oil level inductive switch, the display equipment and/or the voice warning equipment, can facilitate a driver to directly observe a detection result in a cab, and conveniently and accurately control the angle of the cutting arm by arranging the linear displacement sensor for detecting the position of the cutting arm relative to the ground on the lifting oil cylinder of the cutting arm, so that the automatic detection reliability of the oil level of the large bearing of the cutting arm is good, the oil leakage can be conveniently found in time and the floating seal can be replaced, the bearing is prevented from being damaged in advance, and the protective component is arranged, the oil level inductive switch can be arranged in a complex environment at the position of the connecting cylinder.
Drawings
Fig. 1 is a schematic structural diagram of a cantilever excavator cutting arm bearing oil level detection device according to the utility model discloses an embodiment.
FIG. 2 is a schematic sectional view A-A of FIG. 1.
Fig. 3 is a schematic structural view of a guard welded to an outer circumferential surface of a coupling cylinder according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a protection assembly connected to an outer circular surface of a coupling cylinder according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a front protective cover according to an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a rear protective cover according to an embodiment of the present invention.
Figure 7 is a schematic diagram of the cutting arm position angle calculation according to an embodiment of the present invention.
Fig. 8 is a working principle block diagram of the oil level detection device for the bearing of the cantilever excavator according to the embodiment of the present invention.
In the figure: the cutting arm lifting oil cylinder is 1, the linear displacement sensor is 2, the connecting barrel is 3, the oil level sensing switch is 4, the upper protective block is 5, the lower protective block is 6, the protective plate is 7, the protective barrel is 8, the front protective cover is 9, the arc-shaped cover plate is 91, the side plate is 92, the rear protective cover is 10, the connecting plate is 101, the cable protective cover is 102, the oil guiding hole is 11, the oil guiding hole thread is 12, the detection switch detection head is 13, the bolt is 14, the rear flange of the connecting barrel is 15, the bearing cavity is 16, the rotary table is 17, and the cutting frame body is 18.
Detailed Description
The oil level detection device for the cutting arm bearing of the cantilever excavator of the present invention is described in more detail below with reference to the accompanying drawings and by specific embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1-8, the embodiment discloses a bearing oil level detection device for a cutting arm of a cantilever excavator, which comprises an oil level sensing switch and a protection component, wherein an oil guide hole is arranged on a connecting barrel of the cutting arm, the inner end of the oil guide hole is communicated with a bearing cavity in the connecting barrel, the bearing cavity is an oil storage cavity between a front sealing piece and a rear sealing piece of a large bearing of the cutting arm, the oil level sensing switch is connected in the oil guide hole of the connecting barrel, an inductive switch probe is arranged at one end of the oil level sensing switch, which is inserted into the oil guide hole, and used for automatically detecting whether the cutting arm is in oil shortage or not when in the horizontal position, the oil guide hole is lower than the lubricating oil level of the bearing cavity when the cutting arm is in the horizontal state, the inductive switch probe is immersed in the lubricating oil, when oil leakage occurs, the oil guide hole is higher than the lubricating oil level, the switch, The probability of safety accidents of field workers is reduced; the protective component is fixedly connected to the outer side of the connecting barrel, the connecting barrel is close to the cutting head of the cutting arm, and the external environment of the connecting barrel is severe, so that the protective component is required to be arranged to protect the oil level inductive switch and the inductive switch cable, and the arrangement of the oil level inductive switch in the complex environment of the position of the connecting barrel is feasible.
In this embodiment, preferably, the oil level sensing switch is electrically connected with a main controller of the heading machine, and the main controller of the heading machine is further electrically connected with a display device and/or a voice warning device, so that a driver can conveniently and directly observe a detection result in a cab. On the basis of the above scheme, more preferably, the oil level detection device for the cutting arm bearing of the cantilever excavator further comprises a linear displacement sensor, the linear displacement sensor is installed on the cutting arm lifting oil cylinder and used for detecting the position of the cutting arm relative to the ground, the linear displacement sensor is electrically connected with a main controller of the excavator, and the linear displacement sensor is arranged to conveniently and accurately control the angle of the cutting arm, so that the automatic detection reliability for the oil level of the large bearing of the cutting arm is good. The main controller of the heading machine reads the displacement sensor and the data or signals of the inductive switch, processes the data or signals and then outputs information such as the position angle of the cutting arm and whether the cutting arm is lack of oil to a display device or a voice warning device which is electrically connected with the main controller, so that oil leakage can be conveniently found in time and floating seal can be replaced, and the bearing is prevented from being damaged in advance.
In this embodiment, preferably, the protection component includes an upper protection block, a lower protection block, a protection plate, a front protection cover, a protection cylinder and a rear protection cover, the upper protection block and the lower protection block are respectively disposed on and under the inductive switch and welded on the outer circular surface of the coupling cylinder, the inductive switch is prevented from being extruded in the cutting process, the protection plate is welded between the upper protection block and the lower protection block on one side close to the cutting head, the inductive switch is prevented from being worn by a material block rotated by the cutting head, the front protection cover is fixed on the upper protection block and the lower protection block, the rear protection cover is fixed on a flange at the rear part of the coupling cylinder, the protection cylinder is located between the front protection cover and the rear protection cover, and is welded on the outer circular surface of the coupling cylinder along the axis direction of the coupling cylinder for protecting.
In this embodiment, preferably, the upper protection block and the lower protection block are provided with threaded holes, and the front protection cover is fixed on the upper protection block and the lower protection block through bolts; the rear protective cover is fixed on the flange at the rear part of the connecting barrel through bolts. And the oil level inductive switch and the inductive switch cable are conveniently maintained by adopting threaded connection.
In this embodiment, preferably, preceding protective cover includes the arc apron and connects the curb plate in arc apron one side, the outside limit of curb plate sets up to the radian assorted pitch arc with the arc apron, the inboard limit sets up to the outer disc assorted pitch arc with the hookup cylinder, the shape of arc apron and curb plate makes preceding protective cover more laminate with the surface of hookup cylinder, should not be damaged, be equipped with connecting hole and cable on the curb plate and pass through the groove, preceding protective cover passes through the connecting hole on the curb plate, bolt and last protective block and the screw hole on the protective block down are fixed on last protective block and protective block down, the position that the bolt set up makes it should not be pounded, should not be harmed, preceding protective cover plays the effect of protection oil level inductive switch and inductive switch cable.
In this embodiment, preferably, the back protective cover includes connecting plate and cable protection casing, the inboard edge and the outside limit of connecting plate all set up to the pitch arc, make it convenient fixed with the rear portion flange of connecting cylinder, be equipped with the connecting hole on the connecting plate, the back protective cover passes through the connecting plate to be fixed on connecting cylinder rear portion flange, the one end of cable protection casing is connected on the face of arc connecting plate, the other end covers in the tip outside of protecting cylinder, can protect the inductive switch cable of protecting cylinder tip, the back protective cover can prevent that the material piece that the cutting in-process dropped from pounding on the inductive switch cable.
In this embodiment, preferably, the oil guiding hole is provided with a thread on an inner wall of one end close to the outer circular surface of the coupling cylinder, and the sensing switch is screwed on the coupling cylinder through the oil guiding hole, so that the oil level sensing switch is convenient to connect and detach.
The use method of the oil level detection device for the cutting arm bearing of the cantilever excavator comprises the following steps:
firstly, a display device is seen in a cab of the heading machine, a handle is operated to enable the position angle alpha of a cutting arm relative to the ground to reach 0 +/-1 degree, the position angle alpha of the cutting arm relative to the ground is obtained by reading data of a linear displacement sensor arranged on a lifting oil cylinder of the cutting arm through a main controller of the heading machine, the data are calculated and displayed on the display device, then information whether a bearing leaks oil is obtained through the display device and/or a voice warning device, and the oil leakage information is obtained by reading data of an oil level induction switch through the main controller of the heading machine and controlling the display device and/or the voice warning device to output the oil leakage information. The detection method is simple and reliable in operation, good in safety and high in detection efficiency, and oil leakage can be conveniently found and replaced in time.
The calculation formula of the main controller of the heading machine for calculating the angle alpha of the cutting arm relative to the ground position according to the data of the linear displacement sensor is as follows:
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.
The exemplary embodiments of the present invention have been described in detail with reference to the preferred embodiments, however, it will be understood by those skilled in the art that various modifications and changes may be made to the specific embodiments without departing from the concept of the present invention, and various combinations of the technical features and structures of the present invention may be implemented without departing from the scope of the present invention.
Claims (8)
1. A cantilever roadheader cutting arm bearing oil level detection device is characterized by comprising an oil level induction switch and a protection assembly, wherein an oil guide hole is formed in a connecting barrel of a cutting arm, the inner end of the oil guide hole is communicated with a bearing cavity in the connecting barrel, the oil level induction switch is connected in the oil guide hole of the connecting barrel, an induction switch detecting head is arranged at one end, inserted into the oil guide hole, of the oil level induction switch, and the position of the oil guide hole is lower than the lubricating oil level of the bearing cavity when the cutting arm is in a horizontal state; the protection assembly is fixedly connected to the outer side of the connecting cylinder and used for protecting the oil level inductive switch and the inductive switch cable.
2. The oil level detection device for the bearing of the cutting arm of the cantilever excavator according to claim 1, wherein the oil level sensing switch is electrically connected with a main controller of the excavator, and the main controller of the excavator is further electrically connected with a display device and/or a voice warning device.
3. The oil level detection device for the bearing of the cutting arm of the cantilever excavator according to claim 2, wherein the oil level detection device for the bearing of the cutting arm of the cantilever excavator further comprises a linear displacement sensor mounted on the lifting cylinder of the cutting arm for detecting the position of the cutting arm relative to the ground, and the linear displacement sensor is electrically connected with the main controller of the excavator.
4. The oil level detection device for the bearing of the cutting arm of the cantilever excavator according to claim 1, wherein the protection component comprises an upper protection block, a lower protection block, a protection plate, a front protection cover, a protection cylinder and a rear protection cover, the upper protection block and the lower protection block are respectively arranged above and below the induction switch and are welded on the outer circular surface of the connecting cylinder, the protection plate is welded on one side, close to the cutting head, between the upper protection block and the lower protection block, the front protection cover is fixed on the upper protection block and the lower protection block, the rear protection cover is fixed on a flange at the rear part of the connecting cylinder, the protection cylinder is positioned between the front protection cover and the rear protection cover and is welded on the outer circular surface of the connecting cylinder along the axial direction of the connecting cylinder.
5. The oil level detection device for the bearing of the cutting arm of the cantilever excavator according to claim 4, wherein the upper protection block and the lower protection block are provided with threaded holes, and the front protection cover is fixed on the upper protection block and the lower protection block through bolts; the rear protective cover is fixed on the flange at the rear part of the connecting barrel through bolts.
6. The oil level detection device for the bearing of the cutting arm of the cantilever excavator according to claim 5, wherein the front protective cover comprises an arc-shaped cover plate and a side plate connected to one side of the arc-shaped cover plate, the outer side edge of the side plate is provided with an arc matched with the arc of the arc-shaped cover plate, the inner side edge of the side plate is provided with an arc matched with the outer circular surface of the connecting cylinder, the side plate is provided with a connecting hole and a cable passing groove, and the front protective cover is fixed on the upper protective block and the lower protective block through the side plate.
7. The oil level detection device for the bearing of the cutting arm of the cantilever excavator according to claim 5, wherein the rear protective cover comprises a connecting plate and a cable protective cover, the inner side edge and the outer side edge of the connecting plate are both provided with arc lines, the connecting plate is provided with a connecting hole, the rear protective cover is fixed on a flange at the rear part of the connecting cylinder through the connecting plate, one end of the cable protective cover is connected to the plate surface of the arc-shaped connecting plate, and the other end of the cable protective cover covers the outer side of the end part of the protective cylinder.
8. The oil level detection device for the bearing of the cutting arm of the cantilever excavator according to claim 1, wherein the oil guide hole is provided with a thread on the inner wall of one end close to the outer circumferential surface of the coupling cylinder, and the inductive switch is screwed on the coupling cylinder through the oil guide hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020636517.0U CN212110212U (en) | 2020-04-24 | 2020-04-24 | Oil level detection device for cutting arm bearing of cantilever heading machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020636517.0U CN212110212U (en) | 2020-04-24 | 2020-04-24 | Oil level detection device for cutting arm bearing of cantilever heading machine |
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| Publication Number | Publication Date |
|---|---|
| CN212110212U true CN212110212U (en) | 2020-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020636517.0U Active CN212110212U (en) | 2020-04-24 | 2020-04-24 | Oil level detection device for cutting arm bearing of cantilever heading machine |
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| Country | Link |
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| CN (1) | CN212110212U (en) |
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2020
- 2020-04-24 CN CN202020636517.0U patent/CN212110212U/en active Active
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