CN118090279B - Fault diagnosis experimental device for simulating cutting motion of cantilever type heading machine - Google Patents
Fault diagnosis experimental device for simulating cutting motion of cantilever type heading machine Download PDFInfo
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- CN118090279B CN118090279B CN202410458004.8A CN202410458004A CN118090279B CN 118090279 B CN118090279 B CN 118090279B CN 202410458004 A CN202410458004 A CN 202410458004A CN 118090279 B CN118090279 B CN 118090279B
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- 238000005520 cutting process Methods 0.000 title claims abstract description 159
- 230000033001 locomotion Effects 0.000 title claims abstract description 76
- 238000003745 diagnosis Methods 0.000 title claims abstract description 30
- 230000009347 mechanical transmission Effects 0.000 claims abstract description 41
- 238000012544 monitoring process Methods 0.000 claims abstract description 33
- 238000004088 simulation Methods 0.000 claims abstract description 8
- 239000003921 oil Substances 0.000 claims description 276
- 230000008878 coupling Effects 0.000 claims description 27
- 238000010168 coupling process Methods 0.000 claims description 27
- 238000005859 coupling reaction Methods 0.000 claims description 27
- 239000002184 metal Substances 0.000 claims description 21
- 239000012208 gear oil Substances 0.000 claims description 19
- 230000001133 acceleration Effects 0.000 claims description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 238000007599 discharging Methods 0.000 claims 1
- 230000005641 tunneling Effects 0.000 abstract description 9
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000003466 welding Methods 0.000 description 17
- 239000010720 hydraulic oil Substances 0.000 description 10
- 239000003245 coal Substances 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Abstract
The invention relates to a fault diagnosis experimental device for simulating cutting movement of a cantilever type heading machine, and belongs to the technical field of fault diagnosis equipment of the heading machine. Comprising a cutting assembly, a moving assembly and a hydraulic power assembly. By arranging the cutting assembly, the moving assembly and the hydraulic power assembly, when fault diagnosis simulation experiments of the cantilever type tunneling machine cutting part are carried out, the hydraulic power assembly provides power for the moving assembly and the power part in the cutting assembly, and the power part drives the mechanical transmission part in the cutting assembly to move in different directions up and down and left and right, so that the mechanical transmission part simulates the cutting motion state of the cantilever type tunneling cutting part for up and down cutting and left and right cutting; the state monitoring part in the cutting assembly monitors the running state of the mechanical transmission part in real time to obtain the related data of the mechanical transmission part, so that the fault diagnosis and prediction of the cutting part of the cantilever type heading machine are supported conveniently, and the service life of the cutting part of the cantilever type heading machine can be prolonged.
Description
Technical Field
The invention relates to the technical field of fault diagnosis equipment of a development machine, in particular to a fault diagnosis experimental device for simulating cutting movement of a cantilever development machine.
Background
The cantilever type heading machine is a key of coal mine safety production, high yield and high efficiency, and once faults occur, the production efficiency is directly affected, and even serious safety production accidents are caused. Therefore, the development of the tunneling work of the cantilever type tunneling machine is ensured to be fast, stable and effective in the tunneling process of the coal roadway, and the tunneling machine is an important task for ensuring the safe production of the coal mine.
The cutting part is one of key mechanical structures of the cantilever type heading machine, and the running state of the cutting part influences the production efficiency and the safety management of a coal mine. The cutting part can directly cut the coal seam from the working face of the coal mine to finish the tunnel tunneling, but because the coal exploitation environment is complex, the cutting part is often influenced by various factors in the working process to cause faults, so that the production efficiency of the coal is reduced, and even casualties of coal exploitation personnel are caused. Therefore, it is necessary to monitor the state of the cutting motion of the boom cutter and to diagnose and predict its failure effectively.
Disclosure of Invention
In order to solve the technical problems, the invention provides a fault diagnosis experimental device for simulating cutting movement of a cutting part of a cantilever type heading machine. The technical scheme of the invention is as follows:
The fault diagnosis experiment device for simulating the cutting movement of the cantilever type heading machine comprises a cutting assembly, a moving assembly and a hydraulic power assembly, wherein one end of the cutting assembly is fixed on the moving assembly, and the hydraulic power assembly is respectively connected with the cutting assembly and the moving assembly through a plurality of oil inlet pipes and a plurality of oil outlet pipes; the cutting assembly comprises a frame, a power part, a mechanical transmission part and a state monitoring part, wherein the power part is connected with the frame, the state monitoring part is connected with the power part, the mechanical transmission part is connected with the state monitoring part, and the frame is connected with the motion assembly; the cutting assembly is used for simulating the cutting motion of a cutting part of the cantilever type heading machine and collecting motion data, the motion assembly is used for controlling the cutting motion track of the cutting assembly, and the hydraulic power assembly is used for providing power for the cutting assembly and the motion assembly; the machine frame is used for providing support for a power part, a mechanical transmission part and a state monitoring part, the power part is used for providing power for the mechanical transmission part, the mechanical transmission part is used for simulating the cutting movement of a cutting part of the cantilever type heading machine, and the state monitoring part is used for collecting movement data of the mechanical transmission part.
Optionally, the frame includes two splint, two splint curb plates, a plurality of splint gusset and cutting end connect dull and stereotyped, two parallel and perpendicular fixing about the splint the cutting end connects dull and stereotyped leading flank, two the left and right sides limit of splint is fixed connection respectively one the splint curb plate, a plurality of splint gusset's bottom surface is connected respectively two the top surface and the bottom surface of splint, a plurality of splint gusset's trailing flank is connected respectively the cutting end connects dull and stereotyped leading flank.
Optionally, the power part includes hydraulic motor, hydraulic motor bottom plate, hydraulic motor roof, hydraulic motor riser, hydraulic motor curb plate and hydraulic motor foraminiferous curb plate, the first half of hydraulic motor bottom plate is used for installing mechanical transmission part and state monitoring part, the one end of hydraulic motor bottom plate is fixed in be located cut end hookup flat downside the splint top surface, the one end of hydraulic motor roof is fixed in be located cut end hookup flat upside the splint bottom surface, the top surface and the bottom surface of hydraulic Ma Dali board are fixed respectively in the bottom surface of hydraulic motor roof other end and the top surface of hydraulic motor bottom plate latter half, the hydraulic motor curb plate is fixed in the right flank of hydraulic motor roof and hydraulic motor bottom plate, the hydraulic motor foraminiferous curb plate is fixed in the left surface of hydraulic motor roof and hydraulic motor bottom plate, the hydraulic motor is located between hydraulic motor roof and the hydraulic motor bottom plate, and hydraulic motor riser fixed connection, and the output shaft of hydraulic motor runs through Ma Dali board extends to outside and connects with mechanical transmission part after.
Optionally, the mechanical transmission part includes pivot, first shaft coupling, second shaft coupling, two bearings, two bearing frames, cutting head and cutting head flange, the one end of first shaft coupling with hydraulic motor's output shaft, pass through between the other end of first shaft coupling with the one end of second shaft coupling is connected through state monitoring part, two the bearing frames are fixed with the interval around the top surface of hydraulic motor bottom plate first half, two the bearing is installed respectively in two the bearing frames, two are run through respectively at the both ends of pivot two the bearing, the tip of pivot one end is connected with the other end of second shaft coupling, the tip of the pivot other end with the trailing flank of cutting head flange is connected, the leading flank of cutting head flange with the cutting head is connected.
Optionally, the state monitoring part comprises a torque sensor, a torque sensor seat, a hydraulic flow sensor, two acceleration sensors, a data acquisition card, a constant current source and a controller, wherein the torque sensor comprises a shell and a rotating shaft, the shell is sleeved outside the rotating shaft, two ends of the rotating shaft are respectively connected with the other end of the first coupling and one end of the second coupling, the torque sensor seat is fixed on the top surface of the front half part of the bottom plate of the hydraulic motor, the shell is fixed on the torque sensor seat, the hydraulic flow sensor is installed on the hydraulic motor through a through hole on a side plate with a hole of the hydraulic motor, one acceleration sensor is installed on the top surface of a bearing seat positioned in front, the other acceleration sensor is installed on one side surface of the bearing seat positioned in front, and the data acquisition card and the constant current source are both installed on the top surface of the other end of the top plate of the hydraulic motor; the torque sensor, the hydraulic flow sensor and the two acceleration sensors are electrically connected with the data acquisition card, and the controller is electrically connected with the data acquisition card; the controller is used for collecting the data transmitted by the data acquisition card and analyzing the data.
Optionally, the motion assembly comprises a base, left and right rocker arms, upper and lower rocker arms, left and right oil cylinders, upper and lower oil cylinders and a motion end connecting flat plate, the base comprises a bottom plate, an oil cylinder support, a rocker arm support, a rotary seat and an oil cylinder support ear seat, the oil cylinder support is fixed at one side edge of one end of the base, the rocker arm support is fixed at the other side edge of the other end of the base, the rotary seat is fixed on the front side surface of the rocker arm support, and the oil cylinder support ear seat is fixed on the front side surface of the oil cylinder support; the rear sides of the left rocker arm and the right rocker arm are rotatably connected with the rotary seat, one ends of the upper rocker arm and the lower rocker arm are rotatably connected with the top of the front sides of the left rocker arm and the right rocker arm, the cylinder bodies of the left and the right oil cylinders are rotatably connected with the ear seats of the oil cylinder support seats, the piston rods of the left and the right oil cylinders are rotatably connected with the right side surfaces of the left and the right rocker arms, the cylinder bodies of the upper and the lower oil cylinders are rotatably connected with the bottom of the front sides of the left and the right rocker arms, the piston rods of the upper and the lower oil cylinders are rotatably connected with the bottom surfaces of the upper and the lower rocker arms, and the rear side surfaces of the moving end connecting flat plates are fixedly connected with the other ends of the upper and the lower rocker arms; the front side surface of the moving end connecting flat plate is fixedly connected with the rear side surface of the cutting end connecting flat plate.
Optionally, the left and right rocker arms include a front baffle, a rear baffle, a left and right rocker arm bottom plate, two rotary seat side plates, two rotary ear plates, a left and right rocker arm ear seat and two pin shaft sleeves, the two rotary ear plates are respectively and rotatably connected to the top and bottom of the rotary seat, the two rotary seat side plates are respectively and fixedly connected to the left and right sides of the two rotary ear plates, the left and right rocker arm bottom plate is fixedly connected between the bottoms of the two rotary seat side plates, the front baffle is fixedly connected between the front sides of the two rotary seat side plates, the rear baffle is fixedly connected between the rear sides of the two rotary seat side plates, the rear baffle is fixedly connected between the two rotary ear plates, and the left and right rocker arm ear seat is fixedly connected with one of the rotary seat side plates; one end of the upper rocker arm and one end of the lower rocker arm are rotatably connected to the top between the two side plates of the rotary seat, piston rods of the left and right oil cylinders are rotatably connected to the ear seats of the left and right rocker arms, and two sides of a cylinder body of the upper and lower oil cylinders are rotatably connected to the bottom between the two side plates of the rotary seat through two pin shaft sleeves respectively.
Optionally, the upper and lower rocker arms include two upper and lower rocker arm side plates, a U-shaped steel plate and upper and lower rocker arm ear seats, one ends of the two upper and lower rocker arm side plates are respectively connected to the tops of the inner side surfaces of the two rotary seat side plates, two sides of one end of the U-shaped steel plate with an arc structure are respectively connected between the left and right sides of the two upper and lower rocker arm side plates, and the upper and lower rocker arm ear seats are fixed in the middle of the bottom surface of the U-shaped steel plate; the piston rods of the upper and lower oil cylinders are connected with the upper and lower rocker arm lug seats, and the other end of the U-shaped steel plate is connected with the rear side surface of the motion end connecting flat plate.
Optionally, the hydraulic power assembly comprises an oil filling port, an oil tank, a driving motor, a gear oil pump, an oil outlet filter, an overflow valve, an oil return filter, a pressure gauge, an oil path block, a plurality of metal hydraulic pipes, three oil inlet pipes and three oil outlet pipes, wherein the oil filling port is connected with the top of the oil tank, the driving motor, the gear oil pump, the oil outlet filter, the overflow valve, the oil return filter, the pressure gauge, the oil path block and the plurality of metal hydraulic pipes are all installed at the top of the oil tank, the driving motor is electrically connected with the gear oil pump, an oil inlet of the gear oil pump is connected with an oil outlet of the oil tank through the metal hydraulic pipes, an oil outlet of the gear oil pump is connected with an oil inlet of the oil outlet filter through the metal hydraulic pipes, an oil outlet of the oil outlet filter is connected with an oil inlet of the oil path block through the metal hydraulic pipes, a pressure control port of the oil path block is connected with the overflow valve in parallel, and an oil outlet port of the oil path block is connected with an oil inlet of the oil tank through the metal hydraulic pipe, and the oil return port of the oil path block is communicated with an oil outlet of the oil tank; the oil way blocks are respectively connected with the hydraulic motor, the left and right oil cylinders and the upper and lower oil cylinders through three oil inlet pipes and three oil outlet pipes, one ends of the three oil inlet pipes are respectively connected with oil outlets of the oil way blocks, the other ends of the three oil inlet pipes are respectively connected with oil inlets of the hydraulic motor, the left and right oil cylinders and the upper and lower oil cylinders, one ends of the three oil outlet pipes are respectively connected with oil outlets of the hydraulic motor, the left and right oil cylinders and the upper and lower oil cylinders, and the other ends of the three oil outlet pipes are respectively connected with oil return ports of the oil way blocks; the oil inlet and the oil outlet of the oil way block are communicated in the oil way block, and the oil return port and the oil discharge port of the oil way block are communicated in the oil way block.
Optionally, the oil tank further comprises a handle and four rollers, wherein two ends of the handle are fixedly connected to two side faces of the oil tank, and the four rollers are respectively installed at four corners of the bottom face of the oil tank.
All the above optional technical solutions can be arbitrarily combined, and the detailed description of the structures after one-to-one combination is omitted.
By means of the scheme, the beneficial effects of the invention are as follows:
The cutting assembly is used for simulating the cutting motion of a cutting part of the cantilever type heading machine and collecting motion data, the moving assembly is used for controlling the cutting motion track of the cutting assembly, the hydraulic power assembly is used for providing power for the cutting assembly and the moving assembly, and the cutting assembly comprises a frame, a power part, a mechanical transmission part and a state monitoring part, so that when a fault diagnosis simulation experiment of the cutting part of the cantilever type heading machine is carried out, the hydraulic power assembly provides power for the moving assembly and the power part in the cutting assembly, and the power part drives the mechanical transmission part in the cutting assembly to move in different directions up and down and left and right, and the mechanical transmission part is used for simulating the cutting motion state of the cantilever type heading cutting part to cut up and down and cut left and right; through setting up the state monitoring part, can carry out real-time supervision to the running state of mechanical transmission part to this can obtain the relevant motion data of mechanical transmission part, thereby the staff of being convenient for further study to the fault diagnosis of cantilever type entry driving machine cutting part, be convenient for provide support to the diagnosis and the prediction of cantilever type entry driving machine cutting part fault, and then can improve the life of cantilever type entry driving machine cutting part.
The foregoing description is only an overview of the present invention, and is intended to provide a better understanding of the present invention, as it is embodied in the following description, with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a perspective view of a cutting assembly of the present invention at a first viewing angle;
FIG. 3 is a perspective view of the cutting assembly of the present invention at a second view angle;
FIG. 4 is a perspective view of the cutting assembly of the present invention at a third view angle;
FIG. 5 is a cross-sectional view of a cutting assembly of the present invention;
FIG. 6 is a perspective view of the motion assembly of the present invention at a first view angle;
FIG. 7 is a perspective view of the motion assembly of the present invention at a second view angle;
FIG. 8 is a left side view of the motion assembly of the present invention;
FIG. 9 is a top view of the motion assembly of the present invention;
FIG. 10 is a front view of the motion assembly of the present invention;
FIG. 11 is a perspective view of the left and right rocker arms of the present invention at a first view angle;
FIG. 12 is a perspective view of the left and right rocker arms of the present invention at a second view angle;
FIG. 13 is a perspective view of the left and right rocker arms of the present invention at a third view angle;
fig. 14 is a schematic view of a hydraulic power module according to the present invention.
Reference numerals illustrate:
1. A cutting assembly; 11. a frame; 111. a clamping plate; 112. a clamping plate side plate; 113. a splint rib plate; 114. the cutting end is connected with a flat plate; 12. a power section; 121. a hydraulic motor; 122. a hydraulic motor base plate; 123. a hydraulic motor top plate; 124. a hydraulic Ma Dali plate; 125. a hydraulic motor side plate; 126. a hydraulic motor belt Kong Ceban; 13. a mechanical transmission part; 131. a rotating shaft; 132. a first coupling; 133. a second coupling; 134. a bearing; 135. a bearing seat; 136. a cutting head; 137. a cutter head flange; 14. a state monitoring section; 141. a torque sensor; 142. a torque sensor mount; 143. a hydraulic flow sensor; 144. an acceleration sensor; 145. a data acquisition card; 146. a constant current source; 2. a motion assembly; 21. a base; 211. a bottom plate; 212. an oil cylinder support; 213. a rocker arm support; 214. a rotary base; 215. an oil cylinder support ear seat; 22. left and right rocker arms; 221. a front baffle; 222. a rear baffle; 223. left and right rocker arm base plates; 224. a rotary seat side plate; 225. a rotary ear plate; 226. left and right rocker ear seats; 227. a pin sleeve; 23. an upper and lower rocker arm; 231. upper and lower rocker arm side plates; 232. u-shaped steel plates; 233. an upper rocker arm ear seat and a lower rocker arm ear seat; 24. left and right cylinders; 25. an upper cylinder and a lower cylinder; 26. the motion end is connected with a flat plate; 3. a hydraulic power assembly; 31. an oil filling port; 32. an oil tank; 321. a handle; 322. a roller; 33. a driving motor; 34. a gear oil pump; 35. an oil outlet filter; 36. an overflow valve; 37. an oil return filter; 38. a pressure gauge; 39. an oil path block; 310. a metal hydraulic pipe.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
As shown in fig. 1 to 14, the fault diagnosis experiment device for simulating the cutting motion of the cantilever type heading machine provided by the invention comprises a cutting assembly 1, a moving assembly 2 and a hydraulic power assembly 3, wherein one end of the cutting assembly 1 is fixed on the moving assembly 2, and the hydraulic power assembly 3 is respectively connected with the cutting assembly 1 and the moving assembly 2 through a plurality of oil inlet pipes and a plurality of oil outlet pipes; the cutting assembly 1 comprises a frame 11, a power part 12, a mechanical transmission part 13 and a state monitoring part 14, wherein the power part 12 is connected with the frame 11, the state monitoring part 14 is connected with the power part 12, the mechanical transmission part 13 is connected with the state monitoring part 14, and the frame 11 is connected with the motion assembly 2;
The cutting assembly 1 is used for simulating the cutting motion of a cutting part of the cantilever tunneling machine and collecting motion data, the motion assembly 2 is used for controlling the cutting motion track of the cutting assembly 1, and the hydraulic power assembly 3 is used for providing power for the cutting assembly 1 and the motion assembly 2; the frame 11 is used for providing support for a power part 12, a mechanical transmission part 13 and a state monitoring part 14, wherein the power part 12 is used for providing power for the mechanical transmission part 13, the mechanical transmission part 13 is used for simulating the cutting movement of a cantilever heading machine cutting part, and the state monitoring part 14 is used for collecting movement data of the mechanical transmission part 13.
According to the invention, by arranging the cutting assembly 1, the moving assembly 2 and the hydraulic power assembly 3, when a fault diagnosis simulation experiment of the cutting part of the cantilever type heading machine is carried out, the hydraulic power assembly 3 provides power for the moving assembly 2 and the power part 12 in the cutting assembly 1, and the power part 12 drives the mechanical transmission part 13 in the cutting assembly 1 to move in different directions up and down and left and right, so that the mechanical transmission part 13 simulates the cutting motion state of the cantilever type heading cutting part for carrying out up and down cutting and left and right cutting; by arranging the state monitoring part 14, the running state of the mechanical transmission part 13 can be monitored in real time, so that the related motion data of the mechanical transmission part 13 can be obtained, further research on fault diagnosis of the cutting part of the cantilever type heading machine is facilitated for staff, support is facilitated for diagnosis and prediction of the fault of the cutting part of the cantilever type heading machine, and the service life of the cutting part of the cantilever type heading machine can be prolonged.
Optionally, the frame 11 includes two clamping plates 111, two clamping plate side plates 112, a plurality of clamping plate rib plates 113 and a cutting end connecting flat plate 114, the two clamping plates 111 are vertically fixed on the front side surface of the cutting end connecting flat plate 114 in parallel, the left side edge and the right side edge of the two clamping plates 111 are respectively and fixedly connected with one clamping plate side plate 112, the bottom surfaces of the plurality of clamping plate rib plates 113 are respectively connected with the top surface and the bottom surface of the two clamping plates 111, and the rear side surfaces of the plurality of clamping plate rib plates 113 are respectively connected with the front side surface of the cutting end connecting flat plate 114.
Specifically, in the present invention, the number of the clamping plate rib plates 113 is four, and the clamping plate rib plates 113 are connected to the top surfaces and the bottom surfaces of the two clamping plates 111 in pairs, so that the number of the clamping plate rib plates 113 can be changed according to specific situations, and the number of the clamping plate rib plates 113 connected to the two clamping plates 111 is ensured to be consistent.
In a specific embodiment, the two clamping plates 111 and the plurality of clamping plate rib plates 113 are connected in a welding mode; the two clamping plates 111 and the two clamping plate side plates 112 are connected in a welding mode; the front side of the cutting end connecting flat plate 114 is connected with the two clamping plates 111, the four clamping plate rib plates 113 and the two clamping plate side plates 112 in a welding mode.
In the invention, the two clamping plates 111 and the cutting end connecting flat plate 114 are connected in a welding mode through the four clamping plate rib plates 113, so that the stability and the firmness of the whole frame 11 are effectively improved.
Optionally, the power part 12 includes a hydraulic motor 121, a hydraulic motor bottom plate 122, a hydraulic motor top plate 123, a hydraulic Ma Dali plate 124, a hydraulic motor side plate 125, and a hydraulic motor belt Kong Ceban 126, a front half portion of the hydraulic motor bottom plate 122 is used for mounting the mechanical transmission part 13 and the state monitoring part 14, one end of the hydraulic motor bottom plate 122 is fixed on a top surface of the clamping plate 111 located at a lower side of the cutting end coupling plate 114, one end of the hydraulic motor top plate 123 is fixed on a bottom surface of the clamping plate 111 located at an upper side of the cutting end coupling plate 114, a top surface and a bottom surface of the hydraulic Ma Dali plate 124 are respectively fixed on a bottom surface of the other end of the hydraulic motor top plate 123 and a top surface of a rear half portion of the hydraulic motor bottom plate 122, the hydraulic motor side plate 125 is fixed on a right side surface of the hydraulic motor top plate 123 and the hydraulic motor bottom plate 122, the hydraulic motor belt Kong Ceban is fixed on a left side surface of the hydraulic motor top plate 123 and the hydraulic motor bottom plate 122, the hydraulic motor 121 is located between the hydraulic motor top plate 123 and the hydraulic motor bottom plate 122, and the motor top plate 121 is connected with the hydraulic transmission part 3525 and the hydraulic transmission part 124 extends through the hydraulic transmission part 121 to the hydraulic transmission part 13.
In the specific embodiment, the two clamping plates 111 are connected with the hydraulic motor bottom plate 122 and the hydraulic motor top plate 123 through bolt connection; the hydraulic motor side plate 125 is connected with the right side surfaces of the hydraulic motor bottom plate 122 and the hydraulic Ma Dali plate 124 in a welding mode; the hydraulic motor perforated side plate 126 is connected with the left side surfaces of the hydraulic motor bottom plate 122 and the hydraulic Ma Dali plate 124 in a welding mode; the hydraulic Ma Dali plate 124 is connected with the hydraulic motor top plate 123 and the hydraulic motor bottom plate 122 in a welding mode; the hydraulic motor 121 and the hydraulic motor vertical plate 124 are connected by a bolt connection.
Optionally, the mechanical transmission portion 13 includes a rotating shaft 131, a first coupling 132, a second coupling 133, two bearings 134, two bearing blocks 135, a cutting head 136 and a cutting head flange 137, one end of the first coupling 132 is connected with an output shaft of the hydraulic motor 121, the other end of the first coupling 132 is connected with one end of the second coupling 133 through the state monitoring portion 14, the two bearing blocks 135 are fixed on a top surface of a front half portion of the bottom plate 122 of the hydraulic motor at intervals, the two bearings 134 are respectively installed in the two bearing blocks 135, two ends of the rotating shaft 131 respectively penetrate the two bearings 134, an end of one end of the rotating shaft 131 is connected with the other end of the second coupling 133, an end of the other end of the rotating shaft 131 is connected with a rear side surface of the cutting head flange 137, and a front side surface of the cutting head flange 137 is connected with the cutting head 136.
In a specific embodiment, the two bearing blocks 135 are connected to the front half of the hydraulic motor base plate 122 by bolting; the cutting head flange 137 is connected with the rotating shaft 131 through a bolt connection mode; the cutting head 136 is connected with the cutting head flange 137 by welding.
Alternatively, the state monitoring part 14 includes a torque sensor 141, a torque sensor seat 142, a hydraulic flow sensor 143, two acceleration sensors 144, a data acquisition card 145, a constant current source 146, and a controller, the torque sensor 141 includes a housing and a rotating shaft, the housing is sleeved outside the rotating shaft, both ends of the rotating shaft are respectively connected with the other end of the first coupling 132 and one end of the second coupling 133, the torque sensor seat 142 is fixed on the top surface of the front half of the hydraulic motor bottom plate 122, the housing is fixed on the torque sensor seat 142, the hydraulic flow sensor 143 is mounted on the hydraulic motor 121 through a through hole on the hydraulic motor perforated side plate 126, one of the acceleration sensors 144 is mounted on the top surface of the bearing seat 135 located in front, the other acceleration sensor 144 is mounted on one side surface of the bearing seat 135 located in front, and the data acquisition card 145 and 146 are both mounted on the top surface of the other end of the hydraulic motor 123; the torque sensor 141, the hydraulic flow sensor 143 and the two acceleration sensors 144 are all electrically connected with the data acquisition card 145, and the controller is electrically connected with the data acquisition card 145; the controller is used for collecting data transmitted by the data acquisition card 145 and analyzing the data.
Specifically, the constant current source 146 in the present invention is a 24V constant current source.
In a specific embodiment, the torque sensor seat 142 is connected with the front half part of the hydraulic motor bottom plate 122 by a bolt connection manner; the outer wall of the housing of the torque sensor 141 is connected with the torque sensor seat 142 by means of a bolt connection.
In a specific implementation, the hydraulic motor 121 is started, power is transmitted to the first coupler 132 through an output shaft of the hydraulic motor 121, the rotating shaft of the torque sensor 141 is driven to rotate, and the rotating shaft 131 is driven to rotate by the rotating shaft and the second coupler 133, so that the cutting head 136 is driven to rotate, and the rotation simulation of the cutting head 136 of the cantilever tunneling machine is completed.
The two acceleration sensors 144 and the torque sensor 141 in the state monitoring section 14 may be used to monitor movement data of the whole of the mechanical transmission section 13, the hydraulic flow sensor 143 is used to monitor the flow of hydraulic oil into the hydraulic motor 121, and the constant current source 146 is used to provide electrical support for the torque sensor 141, the hydraulic flow sensor 143 and the two acceleration sensors 144. The torque signal collected by the torque sensor 141, the flow signal collected by the hydraulic flow sensor 143, and the vibration signal collected by the two acceleration sensors 144 are transmitted to the controller, and the data is analyzed by the controller, thereby performing state monitoring and fault diagnosis on the cutting head 136.
Optionally, the motion assembly 2 includes a base 21, left and right rocker arms 22, upper and lower rocker arms 23, left and right cylinders 24, upper and lower cylinders 25, and a motion end connecting plate 26, the base 21 includes a bottom plate 211, a cylinder support 212, a rocker arm support 213, a rotary base 214, and a cylinder support ear base 215, the cylinder support 212 is fixed at one side edge of one end of the base 21, the rocker arm support 213 is fixed at the other side edge of the other end of the base 21, the rotary base 214 is fixed on a front side surface of the rocker arm support 213, and the cylinder support ear base 215 is fixed on a front side surface of the cylinder support 212; the rear sides of the left and right rocker arms 22 are rotatably connected with the rotary seat 214, one ends of the upper and lower rocker arms 23 are rotatably connected with the top of the front sides of the left and right rocker arms 22, the cylinder bodies of the left and right cylinders 24 are rotatably connected with the cylinder support lug seats 215, the piston rods of the left and right cylinders 24 are rotatably connected with the right side surfaces of the left and right rocker arms 22, the cylinder bodies of the upper and lower cylinders 25 are rotatably connected with the bottom of the front sides of the left and right rocker arms 22, the piston rods of the upper and lower cylinders 25 are rotatably connected with the bottom surfaces of the upper and lower rocker arms 23, and the rear side surfaces of the moving end connecting flat plates 26 are fixedly connected with the other ends of the upper and lower rocker arms 23; the front side of the moving end coupling plate 26 is fixedly connected to the rear side of the cutting end coupling plate 114.
In a specific embodiment, the cylinder support 212 and the bottom plate 211 are connected in a welding way; the rocker arm support 213 is connected with the bottom plate 211 by welding; the rotary seat 214 is connected with the rocker arm support 213 in a welding mode; the cylinder support lug 215 is connected with the cylinder support 212 in a welding way; the cylinder bodies of the left and right cylinders 24 are connected with the cylinder support lug 215 through pin shafts; the moving end coupling plate 26 is bolted to the cutting end coupling plate 114.
Optionally, the left and right rocker arms 22 include a front baffle 221, a rear baffle 222, left and right rocker arm bottom plates 223, two rotary seat side plates 224, two rotary ear plates 225, left and right rocker arm ear seats 226, and two pin sleeves 227, the two rotary ear plates 225 are rotatably connected to the top and bottom of the rotary seat 214, the two rotary seat side plates 224 are fixedly connected to the left and right sides of the two rotary ear plates 225, the left and right rocker arm bottom plates 223 are fixedly connected between the bottoms of the two rotary seat side plates 224, the front baffle 221 is fixedly connected between the front sides of the two rotary seat side plates 224, the rear baffle 222 is fixedly connected between the rear sides of the two rotary seat side plates 224, the rear baffle 222 is fixedly connected between the two rotary ear plates 225, and the left and right rocker arm ear seats 226 are fixedly connected to one of the rotary seat side plates 224; one end of the upper and lower rocker arms 23 is rotatably connected to the top between the two side plates 224 of the rotary base, piston rods of the left and right cylinders 24 are rotatably connected to the ear seats 226 of the left and right rocker arms, and two sides of the cylinder body of the upper and lower cylinders 25 are rotatably connected to the bottom between the two side plates 224 of the rotary base through two pin sleeves 227, respectively.
In a specific embodiment, the front baffle 221, the rear baffle 222, the left rocker arm bottom plate 223 and the right rocker arm bottom plate 223 are all connected with the two rotary seat side plates 224 in a welding mode; the two rotary lug plates 225 are connected with the rotary seat 214 through pin shafts; the two rotary ear plates 225 are connected with the two rotary seat side plates 224 in a welding mode; the left and right rocker ear seats 226 are connected with the side plate 224 of the rotary seat positioned on the right side in a welding manner; the piston rods of the left and right oil cylinders 24 are connected with the left and right rocker arm ear seats 226 through pin shafts; the cylinder body of the upper and lower cylinders 25 is connected with the two rotary seat side plates 224 through pin shafts, and two pin shaft sleeves 227 are respectively sleeved at two ends of the pin shafts.
The two pin sleeves 227 are respectively sleeved at the two ends of the pin, so that the cylinder body of the upper and lower oil cylinders 25 is not easy to move between the two rotary seat side plates 224, the stability of telescopic movement of the upper and lower oil cylinders 25 is ensured, and the stability of movement of the upper and lower rocker arms 23 is further ensured.
Optionally, the upper and lower rocker arms 23 include two upper and lower rocker arm side plates 231, a U-shaped steel plate 232, and an upper and lower rocker arm ear seat 233, one ends of the two upper and lower rocker arm side plates 231 are respectively connected to the top of the inner side surfaces of the two rotating seat side plates 224, two sides of one end of the U-shaped steel plate 232 with an arc structure are respectively connected between the left and right sides of the two upper and lower rocker arm side plates 231, and the upper and lower rocker arm ear seat 233 is fixed in the middle of the bottom surface of the U-shaped steel plate 232; the piston rod of the upper and lower oil cylinders 25 is connected with the upper and lower rocker arm ear seats 233, and the other end of the U-shaped steel plate 232 is connected with the rear side surface of the moving end connecting flat plate 26.
In a specific embodiment, the two upper and lower rocker arm side plates 231 and the U-shaped steel plate 232 are connected in a welding mode; the tops of the two upper and lower rocker arm side plates 231, the U-shaped steel plate 232 and the two rotary seat side plates 224 are connected in a pin shaft connection mode; the piston rods of the upper and lower oil cylinders 25 are connected with the upper and lower rocker arm ear seats 233 through pin shafts; the other end of the U-shaped steel plate 232 is connected with the moving end coupling plate 26 by welding.
In a specific implementation, the left and right cylinders 24 are started, and when the piston rods of the left and right cylinders 24 extend, the side plates 224 of the rotary seat can be driven to rotate leftwards along the rotary seat 214, and meanwhile, the upper and lower rocker arms 23 are driven to rotate leftwards together; when the piston rods of the left and right cylinders 24 are retracted, the side plate 224 of the rotary base is driven to rotate rightward along the rotary base 214, and the upper and lower rocker arms 23 are driven to rotate rightward together, so as to drive the cutting head 136 to perform left and right cutting motion.
The upper and lower oil cylinders 25 are started, and when the piston rods of the upper and lower oil cylinders 25 extend, the upper and lower rocker arms 23 can be driven to move upwards; when the piston rod of the upper and lower cylinders 25 is retracted, the upper and lower rocker arms 23 are driven to move downwards, so that the cutting head 136 is driven to perform up and down cutting movement.
Optionally, the hydraulic power assembly 3 includes an oil filling port 31, an oil tank 32, a driving motor 33, a gear oil pump 34, an oil outlet filter 35, an overflow valve 36, an oil return filter 37, a pressure gauge 38, an oil path block 39, a plurality of metal hydraulic pipes 310, three oil inlet pipes and three oil outlet pipes, wherein the oil filling port 31 is connected with the top of the oil tank 32, the driving motor 33, the gear oil pump 34, the oil outlet filter 35, the overflow valve 36, the oil return filter 37, the pressure gauge 38, the oil path block 39 and the plurality of metal hydraulic pipes 310 are all installed at the top of the oil tank 32, the driving motor 33 is electrically connected with the gear oil pump 34, an oil inlet of the gear oil pump 34 is connected with an oil outlet of the oil tank 32 through the metal hydraulic pipes 310, an oil outlet of the gear oil pump 34 is connected with an oil inlet of the oil outlet filter 35 through the metal hydraulic pipes 310, a pressure control port of the oil path block 39 is connected with the overflow valve 36, the pressure gauge 38 is connected with the oil inlet of the metal hydraulic pipe 39 through the metal hydraulic pipes 39 in parallel, and the oil outlet of the oil path block 39 is connected with the oil inlet of the oil tank 37 through the metal hydraulic pipes 37; the oil way block 39 is connected with the hydraulic motor 121, the left and right oil cylinders 24 and the upper and lower oil cylinders 25 through three oil inlet pipes and three oil outlet pipes respectively, one ends of the three oil inlet pipes are connected with oil outlets of the oil way block 39, the other ends of the three oil inlet pipes are connected with oil inlets of the hydraulic motor 121, the left and right oil cylinders 24 and the upper and lower oil cylinders 25 respectively, one ends of the three oil outlet pipes are connected with oil outlets of the hydraulic motor 121, the left and right oil cylinders 24 and the upper and lower oil cylinders 25 respectively, and the other ends of the three oil outlet pipes are connected with oil return ports of the oil way block 39; the oil inlet and the oil outlet of the oil path block 39 are communicated in the oil path block 39, and the oil return port and the oil discharge port of the oil path block 39 are communicated in the oil path block 39.
Specifically, the driving motor 33 in the present invention is a three-phase asynchronous motor.
In a specific embodiment, the oil supply process is as follows: the hydraulic oil is added into the oil tank 32 through the oil filling port 31, the driving motor 33 is started, the gear oil pump 34 is driven to rotate by the driving motor 33, the hydraulic oil in the oil tank 32 enters the gear oil pump 34 through the metal hydraulic pipe 310, then enters the oil outlet filter 35 through the gear oil pump 34 for filtering, then enters the oil path block 39 through the oil inlet of the oil path block 39, and respectively enters the hydraulic motor 121, the left and right oil cylinders 24 and the upper and lower oil cylinders 25 through the oil outlet of the oil path block 39 and the three oil inlet pipes.
The oil unloading process is as follows: the driving motor 33 is turned off, hydraulic oil in the hydraulic motor 121, the left and right oil cylinders 24 and the upper and lower oil cylinders 25 respectively enters the oil path block 39 from oil return openings of the oil path block 39 through three oil outlet pipes, then enters the oil return filter 37 through oil discharge openings of the oil path block 39 for filtering, and finally enters the oil tank 32 through the oil return filter 37.
The oil outlet filter 35 can filter the hydraulic oil sent to the hydraulic motor 121, the left and right oil cylinders 24 and the upper and lower oil cylinders 25 from the oil tank 32, thereby protecting the use conditions of the hydraulic motor 121, the left and right oil cylinders 24 and the upper and lower oil cylinders 25 and prolonging the service lives of the hydraulic motor 121, the left and right oil cylinders 24 and the upper and lower oil cylinders 25; the oil return filter 37 can filter the hydraulic oil sent from the hydraulic motor 121, the left and right cylinders 24 and the up and down cylinders 25 to the oil tank 32, thereby ensuring the dryness of the hydraulic oil in the oil tank 32; relief valve 36 may control the pressure of hydraulic power assembly 3, protecting hydraulic motor 121, left and right cylinders 24, and up and down cylinders 25, and the relief pressure of relief valve 36 may be checked and adjusted by pressure gauge 38.
Optionally, the oil tank 32 further includes a handle 321 and four rollers 322, two ends of the handle 321 are fixedly connected to two sides of the oil tank 32, and the four rollers 322 are respectively installed at four corners of the bottom surface of the oil tank 32. By providing the handle 321 and the four rollers 322, it is possible to facilitate the movement of the hydraulic power unit 3 by the worker, improving the convenience of the present invention.
In the specific embodiment, after hydraulic oil is added into the oil tank 32, the driving motor 33 is started, and the driving motor 33 drives the gear oil pump 34 to move, so that the hydraulic oil respectively enters the hydraulic motor 121, the left and right oil cylinders 24 and the upper and lower oil cylinders 25 through three oil inlet pipes; starting the hydraulic motor 121, wherein an output shaft of the hydraulic motor 121 drives the rotating shaft 131 to rotate through the first coupler 132 and the second coupler 133, so that the cutting head 136 is driven to rotate, and the movement of the cutting part of the cantilever type heading machine is simulated; the left and right oil cylinders 24 and the up and down oil cylinders 25 are started, the angles of the left and right rocker arms 22 and the up and down rocker arms 23 are adjusted through the extension and retraction of the piston rods of the left and right oil cylinders 24 and the piston rods of the up and down oil cylinders 25, so that the cutting head 136 is driven to move left and right and up and down, the left and right cutting movement and the up and down cutting movement of the cutting part of the cantilever type heading machine are simulated, signals of the torque sensor 141, the hydraulic flow sensor 143 and the acceleration sensor 144 are acquired through the data acquisition card 145, the signals are transmitted to the controller, and the signals are analyzed by the controller, so that fault diagnosis and state monitoring of the cutting part of the cantilever type heading machine are further carried out.
The driving motor 33, the hydraulic motor 121, the left and right oil cylinders 24 and the upper and lower oil cylinders 25 are closed, hydraulic oil in the hydraulic motor 121, the left and right oil cylinders 24 and the upper and lower oil cylinders 25 respectively flows into the oil path block 39 through three oil outlet pipes, and the oil return filter 37 filters and then enters the oil tank 32, so that a fault diagnosis simulation experiment of the cutting part of the cantilever type heading machine is completed.
The invention realizes the simulation of the left and right cutting movement and the up and down cutting movement of the cutting part of the cantilever type heading machine through hydraulic driving, has more comprehensive simulation direction, and is more real and effective in collected related movement data through the real-time monitoring of the torque sensor 141, the hydraulic flow sensor 143 and the acceleration sensor 144, thereby being convenient for providing support for the diagnosis and prediction of the fault of the cutting part of the cantilever type heading machine and further improving the service life of the cutting part of the cantilever type heading machine.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and it should be noted that it is possible for those skilled in the art to make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.
Claims (9)
1. The utility model provides a fault diagnosis experimental apparatus of simulation cantilever type entry driving machine cutting motion which characterized in that includes:
The cutting device comprises a cutting assembly (1), a moving assembly (2) and a hydraulic power assembly (3), wherein one end of the cutting assembly (1) is fixed on the moving assembly (2), and the hydraulic power assembly (3) is respectively connected with the cutting assembly (1) and the moving assembly (2) through a plurality of oil inlet pipes and a plurality of oil outlet pipes;
The cutting assembly (1) comprises a frame (11), a power part (12), a mechanical transmission part (13) and a state monitoring part (14), wherein the power part (12) is connected with the frame (11), the state monitoring part (14) is connected with the power part (12), the mechanical transmission part (13) is connected with the state monitoring part (14), and the frame (11) is connected with the motion assembly (2);
The cutting assembly (1) is used for simulating the cutting motion of a cutting part of the cantilever type heading machine and collecting motion data, the motion assembly (2) is used for controlling the cutting motion track of the cutting assembly (1), and the hydraulic power assembly (3) is used for providing power for the cutting assembly (1) and the motion assembly (2);
The frame (11) is used for providing support for a power part (12), a mechanical transmission part (13) and a state monitoring part (14), the power part (12) is used for providing power for the mechanical transmission part (13), the mechanical transmission part (13) is used for simulating the cutting movement of a cantilever type heading machine cutting part, and the state monitoring part (14) is used for collecting movement data of the mechanical transmission part (13);
The state monitoring section (14) includes: the hydraulic motor comprises a torque sensor (141), a torque sensor seat (142), a hydraulic flow sensor (143), two acceleration sensors (144), a data acquisition card (145), a constant current source (146) and a controller, wherein the torque sensor (141) comprises a shell and a rotating shaft, the shell is sleeved outside the rotating shaft, two ends of the rotating shaft are respectively connected with the other end of a first coupler (132) and one end of a second coupler (133), the torque sensor seat (142) is fixed on the top surface of the front half part of a hydraulic motor bottom plate (122), the shell is fixed on the torque sensor seat (142), the hydraulic flow sensor (143) is installed on a hydraulic motor (121) through a through hole on a hydraulic motor belt Kong Ceban (126), one acceleration sensor (144) is installed on the top surface of a bearing seat (135) positioned in front, the other acceleration sensor (144) is installed on one side surface of the bearing seat (135) positioned in front, and the data acquisition card (144) and the constant current source (146) are both installed on the top surface of the hydraulic motor (123);
The torque sensor (141), the hydraulic flow sensor (143) and the two acceleration sensors (144) are electrically connected with the data acquisition card (145), and the controller is electrically connected with the data acquisition card (145); the controller is used for collecting data transmitted by the data acquisition card (145) and analyzing the data.
2. A fault diagnosis test apparatus for simulating cutting movement of a boom-type entry driving machine according to claim 1, wherein the frame (11) comprises:
Two splint (111), two splint curb plate (112), a plurality of splint gusset (113) and cutting end connect dull and stereotyped (114), two parallel and perpendicular fixation about splint (111) cut the leading flank that end connects dull and stereotyped (114), two the left and right sides limit of splint (111) is fixed connection respectively one splint curb plate (112), a plurality of the bottom surface of splint gusset (113) is connected respectively at two the top surface and the bottom surface of splint (111), a plurality of the trailing flank of splint gusset (113) is connected respectively cut the leading flank that end connects dull and stereotyped (114).
3. A fault diagnosis test apparatus for simulating cutting movement of a boom-type entry-driving machine according to claim 2, wherein the power section (12) comprises:
a hydraulic motor (121), a hydraulic motor bottom plate (122), a hydraulic motor top plate (123), a hydraulic Ma Dali plate (124), a hydraulic motor side plate (125) and a hydraulic motor belt Kong Ceban (126), a front half portion of the hydraulic motor bottom plate (122) is used for mounting the mechanical transmission portion (13) and the state monitoring portion (14), one end of the hydraulic motor bottom plate (122) is fixed on a top surface of the clamping plate (111) located at a lower side of the cutting end coupling plate (114), one end of the hydraulic motor top plate (123) is fixed on a bottom surface of the clamping plate (111) located at an upper side of the cutting end coupling plate (114), a top surface and a bottom surface of the hydraulic Ma Dali plate (124) are respectively fixed on a bottom surface of the other end of the hydraulic motor top plate (123) and a top surface of a rear half portion of the hydraulic motor bottom plate (122), the hydraulic motor side plate (125) is fixed on a right side surface of the hydraulic motor top plate (123) and the hydraulic motor bottom plate (122), one end of the hydraulic motor top plate Kong Ceban (126) is fixed on a side of the hydraulic motor top plate (123) and the motor bottom plate (122), the hydraulic motor top plate (122) is connected between the hydraulic motor top plate (121) and the hydraulic motor top plate (122) and the hydraulic motor top plate (121), and an output shaft of the hydraulic motor (121) penetrates through the hydraulic Ma Dali plate (124) to extend to the outside and then is connected with the mechanical transmission part (13).
4. A fault diagnosis test apparatus for simulating cutting movement of a boom-type entry driving machine according to claim 3, wherein the mechanical transmission portion (13) comprises:
the hydraulic motor comprises a rotating shaft (131), a first coupler (132), a second coupler (133), two bearings (134), two bearing seats (135), a cutting head (136) and a cutting head flange (137), wherein one end of the first coupler (132) is connected with an output shaft of the hydraulic motor (121), the other end of the first coupler (132) is connected with one end of the second coupler (133) through a state monitoring part (14), the two bearing seats (135) are fixed on the top surface of the front half part of a bottom plate (122) of the hydraulic motor at intervals, the two bearing seats (134) are respectively arranged in the two bearing seats (135), two ends of the rotating shaft (131) penetrate through the two bearing seats (134) respectively, one end of the rotating shaft (131) is connected with the other end of the second coupler (133), the other end of the rotating shaft (131) is connected with the rear side surface of the cutting head flange (137), and the front side surface of the cutting head flange (137) is connected with the cutting head (136).
5. A fault diagnosis test apparatus for simulating cutting movement of a boom-type entry-driving machine according to claim 3, wherein the movement assembly (2) comprises:
The hydraulic lifting device comprises a base (21), left and right rocker arms (22), an upper rocker arm (23), a lower rocker arm (23), left and right oil cylinders (24), an upper oil cylinder (25) and a lower oil cylinder (25) and a motion end connecting flat plate (26), wherein the base (21) comprises a bottom plate (211), an oil cylinder support (212), a rocker arm support (213), a rotary seat (214) and an oil cylinder support ear seat (215), the oil cylinder support (212) is fixed at one side edge of one end of the base (21), the rocker arm support (213) is fixed at the other side edge of the other end of the base (21), the rotary seat (214) is fixed on the front side surface of the rocker arm support (213), and the oil cylinder support ear seat (215) is fixed on the front side surface of the oil cylinder support (212);
The rear sides of the left rocker arm and the right rocker arm (22) are rotatably connected with the rotary seat (214), one ends of the upper rocker arm and the lower rocker arm (23) are rotatably connected with the top of the front sides of the left rocker arm and the right rocker arm (22), the cylinder bodies of the left and the right cylinder (24) are rotatably connected with the cylinder support lug seats (215), the piston rods of the left and the right cylinder (24) are rotatably connected with the right side surfaces of the left and the right rocker arms (22), the cylinder bodies of the upper and the lower cylinder (25) are rotatably connected with the bottoms of the front sides of the left and the right rocker arms (22), the piston rods of the upper and the lower cylinder (25) are rotatably connected with the bottom surfaces of the upper and the lower rocker arms (23), and the rear side surfaces of the moving end connecting flat plates (26) are fixedly connected with the other ends of the upper and the lower rocker arms (23);
The front side of the moving end connecting flat plate (26) is fixedly connected with the rear side of the cutting end connecting flat plate (114).
6. A fault diagnosis test apparatus for simulating cutting motion of a boom-type heading machine as defined in claim 5, wherein said left and right swing arms (22) include:
The device comprises a front baffle (221), a rear baffle (222), left and right rocker arm bottom plates (223), two rotary seat side plates (224), two rotary ear plates (225), left and right rocker arm ear seats (226) and two pin shaft sleeves (227), wherein the two rotary ear plates (225) are respectively and rotatably connected to the top and the bottom of the rotary seat (214), the two rotary seat side plates (224) are respectively and fixedly connected to the left and right sides of the two rotary ear plates (225), the left and right rocker arm bottom plates (223) are fixedly connected between the bottoms of the two rotary seat side plates (224), the front baffle (221) is fixedly connected between the front sides of the two rotary seat side plates (224), the rear baffle (222) is fixedly connected between the rear sides of the two rotary seat side plates (224), and the left and right rocker arm ear seats (226) are fixedly connected with one rotary seat side plate (224);
One end of the upper and lower rocker arms (23) is rotatably connected to the top between the two rotary seat side plates (224), piston rods of the left and right oil cylinders (24) are rotatably connected to the left and right rocker arm ear seats (226), and two sides of a cylinder body of the upper and lower oil cylinders (25) are rotatably connected to the bottom between the two rotary seat side plates (224) through two pin shaft sleeves (227) respectively.
7. A fault diagnosis test apparatus for simulating cutting motion of a cantilever type heading machine according to claim 6, wherein the upper and lower rocker arms (23) comprise:
The upper rocker arm ear seat and the lower rocker arm ear seat are characterized in that the upper rocker arm ear seat and the lower rocker arm ear seat are respectively connected with the upper rocker arm side plate (231), the lower rocker arm ear seat (233) and the lower rocker arm side plate (231), one end of each of the upper rocker arm side plate and the lower rocker arm side plate (231) is respectively connected to the tops of the inner side surfaces of the two rotary seat side plates (224), two sides of one end of each of the U-shaped steel plates (232) with an arc-shaped structure are respectively connected between the left side and the right side of each of the upper rocker arm side plate and the lower rocker arm side plate (231), and each of the upper rocker arm ear seat and the lower rocker arm ear seat (233) is fixed in the middle of the bottom surface of each of the U-shaped steel plates (232);
The piston rods of the upper and lower oil cylinders (25) are connected with the upper and lower rocker arm lug seats (233), and the other end of the U-shaped steel plate (232) is connected with the rear side surface of the motion end connecting flat plate (26).
8. A fault diagnosis test apparatus for simulating cutting movement of a boom-type entry driving machine according to claim 5, wherein the hydraulic power unit (3) comprises:
The oil filling device comprises an oil filling port (31), an oil tank (32), a driving motor (33), a gear oil pump (34), an oil outlet filter (35), an overflow valve (36), an oil return filter (37), a pressure gauge (38), an oil path block (39), a plurality of metal hydraulic pipes (310), three oil inlet pipes and three oil outlet pipes, wherein the oil filling port (31) is connected with the top of the oil tank (32), the driving motor (33), the gear oil pump (34), the oil outlet filter (35), the overflow valve (36), the oil return filter (37), the pressure gauge (38), the oil path block (39) and the plurality of metal hydraulic pipes (310) are all arranged at the top of the oil tank (32), the driving motor (33) is electrically connected with the gear oil pump (34), an oil inlet of the gear oil pump (34) is connected with an oil outlet of the oil tank (32) through the metal hydraulic pipes (310), the oil inlet of the oil outlet filter (35) is connected with the oil path block (39) through the oil inlet (36), the pressure gauge (38) is connected in parallel to the metal hydraulic pipe (310) connected with the oil outlet filter (35) and the oil path block (39) through the metal hydraulic pipe (310), an oil discharging port of the oil path block (39) is connected with an oil inlet of the oil return filter (37) through the metal hydraulic pipe (310), and an oil outlet of the oil return filter (37) is communicated with the inside of the oil tank (32);
The oil way blocks (39) are respectively connected with the hydraulic motor (121), the left and right oil cylinders (24) and the upper and lower oil cylinders (25) through three oil inlet pipes and three oil outlet pipes, one ends of the three oil inlet pipes are respectively connected with oil outlets of the oil way blocks (39), the other ends of the three oil inlet pipes are respectively connected with oil inlets of the hydraulic motor (121), the left and right oil cylinders (24) and the upper and lower oil cylinders (25), one ends of the three oil outlet pipes are respectively connected with oil outlets of the hydraulic motor (121), the left and right oil cylinders (24) and the upper and lower oil cylinders (25), and the other ends of the three oil outlet pipes are respectively connected with oil return ports of the oil way blocks (39);
The oil inlet and the oil outlet of the oil path block (39) are communicated in the oil path block (39), and the oil return port and the oil discharge port of the oil path block (39) are communicated in the oil path block (39).
9. A fault diagnosis test apparatus for simulating cutting movement of a boom-type entry-driving machine according to claim 8, wherein said oil tank (32) further comprises:
The oil tank comprises a handle (321) and four rollers (322), wherein two ends of the handle (321) are fixedly connected to two side surfaces of the oil tank (32), and the four rollers (322) are respectively arranged at four corners of the bottom surface of the oil tank (32).
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| CN105626067B (en) * | 2016-03-22 | 2018-09-18 | 辽宁工程技术大学 | A kind of the frequency conversion development machine and its application method of fast changeable cutting body |
| CN205977220U (en) * | 2016-08-30 | 2017-02-22 | 宋佰超 | Safe entry driving machine for coal mine |
| CN106932182B (en) * | 2017-01-24 | 2019-01-22 | 中国矿业大学 | Cutting part of heading machine cutting Work condition analogue fault diagnostic test platform |
| CN107063723A (en) * | 2017-03-20 | 2017-08-18 | 辽宁工程技术大学 | A kind of Vertical Axis Road-header cut simulation experiment system |
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| CN117686224A (en) * | 2024-02-02 | 2024-03-12 | 太原理工大学 | Fault diagnosis experiment platform for simulating cutting head bearing of heading machine |
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| 基于元件原理解析的掘进机液压系统故障诊断;李永安 等;《煤矿机械》;20240331;第45卷(第3期);全文 * |
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