Detection workbench of planetary reducer for thin seam mining machine

Abstract

According to the detection workbench of the planetary reducer for the thin seam mining machine, an air pump is fixed in a detection chamber, an air outlet of the air pump is fixedly communicated with an exhaust pipe, the exhaust pipe is fixedly communicated with a blowing box, the blowing box is connected with a feeding assembly, and the feeding assembly conveys dust into the blowing box; two hoses are further fixedly communicated with the blowing box, the tail ends of the hoses are connected with spray head assemblies, a working panel is arranged between the two spray head assemblies, a planetary reducer is placed on the working panel, and an air pump is started to finally blow dust in the blowing box to the position of an input shaft / output shaft of the planetary reducer through the hoses and the spray head assemblies. Therefore, efficient dustproof detection can be carried out on key parts of the planetary reducer.

Description

Technical Field

[0001] The present invention relates to the field of speed reducers, and particularly to a detection workbench for a planetary speed reducer used in a thin coal seam shearer. Background Art

[0002] A thin coal seam refers to a coal mining face with a relatively small coal seam thickness, and the mining operation space is relatively small. Therefore, the use of relevant coal mining equipment is crucial. The shearer is a very important piece of equipment among them, and it can be said to be the most front-line equipment for the entire coal mining work. Multiple planetary speed reducers are used in the shearer. The working environment of the planetary speed reducer on the shearer is harsh, and it has to be in contact with flying coal dust and dust for a long time. Therefore, the dust-proof detection of the planetary speed reducer on the shearer is a very important step before its operation.

[0003] Most of the existing dust-proof detection equipment creates dust in a closed space for testing. However, for the planetary speed reducer of the shearer, the parts where coal and ash enter are only likely to be the connection parts between the input shaft / output shaft and the bearings. Using common dust-proof detection equipment for detection is too inefficient. Summary of the Invention

[0004] The purpose of the present invention is to provide a detection workbench for a planetary speed reducer used in a thin coal seam shearer to solve the above problems.

[0005] The above technical purpose of the present invention is achieved through the following technical solutions: A detection workbench for a planetary speed reducer used in a thin coal seam shearer, including a machine body, and a detection chamber is arranged inside the machine body;

[0006] An air pump is fixed inside the detection chamber. The air inlet of the air pump is fixedly connected and extends out to the outside through an air inlet pipe, and the air outlet of the air pump is fixedly connected to an exhaust pipe. The exhaust pipe is fixedly connected to a blowing box, and the blowing box is connected to a feeding component;

[0007] Two hoses are also fixedly connected to the blowing box. The ends of the hoses are connected to a nozzle assembly, and a lifting table is arranged between the two nozzle assemblies;

[0008] The two nozzle assemblies are symmetrically arranged with respect to the lifting table.

[0009] Preferably, the nozzle assembly includes a first ring and a second ring. The first ring and the second ring are rotatably installed between each other. The second ring is closer to the working panel than the first ring. A first communication groove is formed in the first ring. The hose is fixedly communicated with the first communication groove. A second communication groove communicating with the first communication groove is formed in the second ring. Dust spraying ports facing the working panel are formed in the second communication groove. A first gear is fixed on the second ring. An annular groove is formed in the first ring. A sliding ring fixed to the second ring is slidably installed in the annular groove.

[0010] Preferably, the nozzle assembly further includes a moving component for adjusting the position of the first ring. The sliding component includes a slider fixed to the bottom of the first ring. The slider is slidably installed in an orbit. A lead screw is rotatably installed in the orbit. Both the lead screw and the slider have threads to enable threaded connection between the two. The end of the lead screw extends into the detection chamber and is fixedly connected with a knob.

[0011] Preferably, the feeding assembly includes a mixing barrel arranged on the top of the blowing box. A feeding port is fixedly communicated with the top of the mixing barrel. A rotating shaft is rotatably installed in the mixing barrel. The top of the rotating shaft extends to the outside and is fixedly connected with the motor shaft of a mixing motor. The mixing motor is fixed on the top of the mixing barrel. The mixing barrel and the blowing box are fixedly communicated through a conveying pipe. Stirring blades are uniformly fixed on the rotating shaft in the mixing barrel. The bottom of the rotating shaft is inserted into the conveying pipe and is fixed with a spiral conveying blade.

[0012] Preferably, the lifting platform includes a working panel. A base fixed to the bottom wall of the detection chamber is arranged at the bottom of the working panel. A telescopic mechanism and at least one guiding mechanism are arranged between the base and the working panel.

[0013] Preferably, the first gears are all meshed with second gears. The two second gears are both fixed on a connecting shaft. The connecting shaft is fixedly connected with the motor shaft of a power motor.

[0014] Preferably, the width of the second gear is greater than the width of the first gear.

[0015] Preferably, the nozzle assembly further includes an adjusting component installed on the second ring. The adjusting component includes a pair of fixed heads fixed to the second ring. An adjusting plate is rotatably installed between the fixed heads. The adjusting plate is located at the position of the dust spraying port. A torsion spring is installed between the adjusting plate and the fixed heads. A pressing strip is attached to the top of the adjusting plate. A guide rod fixed to the second ring is slidably penetrated through the pressing strip. A threaded rod rotatably connected with the second ring is also penetrated through the pressing strip in a threaded manner. The dust sprayed out from the dust spraying port will be sprayed onto the adjusting plate and move along the surface of the adjusting plate.

[0016] Preferably, there are openings in the middle between the second ring and the first ring.

[0017] Preferably, a control terminal is integrated in the machine body.

[0018] In summary, the present invention has the following beneficial effects:

[0019] 1. A fixed air pump is provided in the detection chamber of the present application. The air outlet of the air pump is fixedly connected to the exhaust duct, the exhaust duct is fixedly connected to the blowing box, the blowing box is connected to the feeding component, and the feeding component transports dust into the blowing box.

[0020] Two hoses are also fixedly connected to the blowing box. The ends of the hoses are connected to the nozzle assemblies. A working panel is arranged between the two nozzle assemblies. The planetary reducer is placed on the working panel. When the air pump starts, the dust in the blowing box is finally blown to the input shaft / output shaft position of the planetary reducer through the hoses and the nozzle assemblies, so as to efficiently perform dust-proof detection on the key parts of the planetary reducer.

[0021] 2. The nozzle assembly includes a first ring and a second ring. The first ring and the second ring are rotatably installed between them. A first communication groove is opened in the first ring, and the hose is fixedly connected to the first communication groove. A second communication groove communicating with the first communication groove is opened in the second ring, and a dust spraying port facing the working panel is opened on the second communication groove.

[0022] After the rotation of the second ring, the dust spraying port is driven to rotate, so as to realize the circumferential dust spraying detection on the planetary reducer, and the detection is more comprehensive.

[0023] 3. The nozzle assembly further includes an adjusting component installed on the second ring. The adjusting component includes a pair of fixed heads fixed to the second ring. An adjusting plate is rotatably installed between the fixed heads. The adjusting plate is located at the dust spraying port position. A torsion spring is installed between the adjusting plate and the fixed heads. A pressing strip is attached to the top of the adjusting plate. A guide rod fixed to the second ring is slidably penetrated through the pressing strip, and a threaded rod rotatably connected to the second ring is also penetrated through the pressing strip. The dust sprayed from the dust spraying port will be sprayed onto the adjusting plate and move along the surface of the adjusting plate. Adjust the angle of the adjusting plate so that the dust sprayed from the dust spraying port can accurately be sprayed onto the connection position between the bearing and the shaft of the planetary reducer. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0025] Figure 1It is the first external view schematic diagram of the embodiment of the present invention;

[0026] Figure 2 It is the second external view schematic diagram of the embodiment of the present invention;

[0027] Figure 3 It is Figure 2 The enlarged schematic diagram at position A in

[0028] Figure 4 It is the first sectional structure display diagram of the embodiment of the present invention;

[0029] Figure 5 It is the second sectional structure display diagram of the embodiment of the present invention;

[0030] Figure 6 It is Figure 5 The enlarged schematic diagram at position B in

[0031] Figure 7 It is Figure 5 The enlarged schematic diagram at position B in

[0032] In the figure: 11, the machine body; 12, the detection chamber; 13, the power motor; 14, the air inlet pipe; 15, the air pump; 16, the mixing barrel; 17, the feed inlet; 18, the mixing motor; 19, the conveying pipe; 20, the blowing box; 21, the second gear; 22, the hose; 23, the knob; 24, the track; 25, the working panel; 26, the base; 27, the first ring; 28, the first gear; 29, the second ring; 31, the connecting shaft; 32, the telescopic mechanism; 33, the guiding mechanism; 35, the fixed head; 36, the dust spraying port; 37, the adjusting plate; 38, the torsion spring; 39, the threaded rod; 40, the guide rod; 41, the exhaust pipe; 42, the spiral conveyor blade; 43, the stirring blade; 44, the rotating shaft; 45, the lead screw; 46, the slider; 47, the first communication groove; 48, the second communication groove; 50, the pressing strip; 51, the annular groove; 52, the sliding ring; 60, the nozzle assembly; 70, the adjusting assembly; 80, the feeding assembly. Detailed implementation manners

[0033] Combined with the attached Figures 1 - 7 The detection workbench for a planetary reducer used in a thin coal seam shearer described above includes a machine body 11. A detection chamber 12 is arranged inside the machine body 11, and a door is installed on the machine body 11 to seal the detection chamber 12 (not shown in the figure, which can effectively prevent dust from overflowing);

[0034] A gas pump 15 is fixed inside the detection chamber 12. The air inlet of the gas pump 15 is fixedly connected and extends to the outside through an air inlet pipe 14. The air outlet of the gas pump 15 is fixedly connected to an exhaust pipe 41. The exhaust pipe 41 is fixedly connected to a blowing box 20. The blowing box 20 is connected to a feeding assembly 80. The feeding assembly 80 conveys dust into the blowing box 20. The feeding assembly 80 includes a mixing barrel 16 arranged on the top of the blowing box 20. The top of the mixing barrel 16 is fixedly connected to a feeding port 17. A rotating shaft 44 is rotatably installed inside the mixing barrel 16. The top of the rotating shaft 44 extends to the outside and is fixedly connected to the motor shaft of a mixing motor 18. The mixing motor 18 is fixed on the top of the mixing barrel 16. The mixing barrel 16 and the blowing box 20 are fixedly connected and communicated through a conveying pipe 19. Stirring blades 43 are evenly fixed on the rotating shaft 44 inside the mixing barrel 16. The bottom of the rotating shaft 44 is inserted into the conveying pipe 19 and is fixed with a spiral conveying blade 42;

[0035] Dust is added from the feeding port 17 and stored in the mixing barrel 16. After the mixing motor 18 is started, it will drive the rotating shaft 44 to rotate, driving the stirring blades 43 and the spiral conveying blade 42 to rotate simultaneously. The stirring blades 43 prevent the dust in the mixing barrel 16 from caking. The spiral conveying blade 42 rotates to convey the dust into the blowing box 20. After the gas pump 15 is started, the dust in the blowing box 20 is blown out;

[0036] Two hoses 22 are also fixedly connected to the blowing box 20. The ends of the hoses 22 are connected to a nozzle assembly 60. A working panel 25 is arranged between the two nozzle assemblies 60. The working panel 25 is used to place a planetary reducer. A base 26 fixed to the bottom wall of the detection chamber 12 is arranged at the bottom of the working panel 25. A telescopic mechanism 32 and at least one guiding mechanism 33 are arranged between the base 26 and the working panel 25. The telescopic mechanism 32 is used to control the lifting of the working panel 25 relative to the base 26, so that the position of the input shaft / output shaft of the planetary reducer on the working panel 25 can be aligned with the nozzle assembly 60. The guiding mechanism 33 is used for guiding;

[0037] After alignment, the gas pump 15 is started to blow the dust in the blowing box 20 to the position of the input shaft / output shaft of the planetary reducer through the hoses 22 and the nozzle assembly 60, so as to perform efficient dust-proof detection on the key parts of the planetary reducer.

[0038] The two spray head assemblies 60 are symmetrically arranged with respect to the working panel 25. The spray head assembly 60 includes a first ring 27 and a second ring 29. The first ring 27 and the second ring 29 are rotatably installed between them. The second ring 29 is closer to the working panel 25 than the first ring 27. A first communication groove 47 is formed in the first ring 27. The hose 22 is fixedly communicated with the first communication groove 47. A second communication groove 48 communicating with the first communication groove 47 is formed in the second ring 29. A dust spraying port 36 facing the working panel 25 is formed in the second communication groove 48. A first gear 28 is fixed on the second ring 29. A ring groove 51 is formed in the first ring 27. A sliding ring 52 fixed to the second ring 29 is slidably installed in the ring groove 51;

[0039] The spray head assembly 60 further includes a moving assembly for adjusting the position of the first ring 27. The sliding assembly includes a slider 46 fixed to the bottom of the first ring 27. The slider 46 is slidably installed in the track 24. A lead screw 45 is rotatably installed in the track 24. Both the lead screw 45 and the slider 46 have threads so that the two are threadedly connected. The end of the lead screw 45 extends into the detection chamber 12 and is fixedly connected with a knob 23. Manually rotate the knob 23 to drive the lead screw 45 to rotate. Through the threaded connection between the lead screw 45 and the slider 46, the slider 46 is driven to move, thereby driving the first ring 27 to move, so as to adjust the position of the spray head assembly 60.

[0040] The first gear 28 is engaged with a second gear 21. The two second gears 21 are both fixed on a connecting shaft 31. The connecting shaft 31 is fixedly connected with the motor shaft of the power motor 13. After the power motor 13 is started, it will drive the connecting shaft 31 to rotate, thereby driving the two second gears 21 on the connecting shaft 31 to rotate. Through the engagement between the second gear 21 and the first gear 28, the first gear 28 is driven to rotate. The first gear 28 drives the second ring 29 to rotate. The dust in the hose 22 enters the first communication groove 47, then enters the second communication groove 48, and finally is discharged from the dust spraying port 36. Due to the rotation of the second ring 29, the dust spraying port 36 is driven to rotate, so as to realize the circumferential dust spraying detection of the planetary reducer, and the detection is more comprehensive.

[0041] It should be particularly noted that the width of the second gear 21 is greater than the width of the first gear 28. When the moving assembly drives the first gear 28 to move, the first gear 28 can always be engaged with the second gear 21.

[0042] The nozzle assembly 60 further includes an adjustment assembly 70 installed on the second ring 29. The adjustment assembly 70 includes a pair of fixed heads 35 fixed to the second ring 29. An adjustment plate 37 is rotatably installed between the fixed heads 35. The adjustment plate 37 is located at the dust spraying port 36. A torsion spring 38 is installed between the adjustment plate 37 and the fixed heads 35. A pressing strip 50 is attached to the top of the adjustment plate 37. A guide rod 40 fixed to the second ring 29 is slidably penetrated through the pressing strip 50. A threaded rod 39 rotatably connected to the second ring 29 is also penetrated through the pressing strip 50. The dust ejected from the dust spraying port 36 will be sprayed onto the adjustment plate 37 and move along the surface of the adjustment plate 37 to adjust the angle of the adjustment plate 37 so that the dust ejected from the dust spraying port 36 can accurately be sprayed onto the connection position between the planetary reducer bearing and the shaft. Manually rotating the threaded rod 39 can drive the pressing strip 50 to move up and down to drive the rotation of the adjustment plate 37, causing the angle of the adjustment plate 37 to change.

[0043] The second ring 29 and the first ring 27 are provided with openings in the middle to facilitate the insertion of the input shaft / output shaft of the planetary reducer and also to better perform central positioning.

[0044] A control terminal is integrated in the machine body 11 to control the operation of the electrical components in this application. A control panel is installed on the outer surface of the machine body 11.

[0045] Usage method:

[0046] Place the planetary reducer that needs to be dust-detected on the working panel 25. The output shaft and the input shaft of the planetary reducer are respectively oriented towards one of the nozzle assemblies 60. Control the telescopic mechanism 32 through the control panel to adjust the height of the working panel 25. Manually rotate the two knobs 23 to drive the lead screw 45 to rotate. Drive the slider 46 to move through the threaded connection between the lead screw 45 and the slider 46, thereby driving the first ring 27 to move, so as to adjust the position of the nozzle assembly 60, so that the output shaft and the input shaft of the planetary reducer are respectively located at the center positions of the holes of one of the first rings 27;

[0047] After completion, manually rotate the threaded rod 39 to drive the pressing strip 50 to move up and down. With the cooperation of the torsion spring 38, the lower surface of the adjustment plate 37 faces the connection positions between the output shaft and the input shaft of the planetary reducer and the bearing;

[0048] After completion, close the door and conduct a dust detection experiment. Press the start button on the control panel. The control terminal first controls the start of the power motor 13. The power motor 13 drives the connection shaft 31 to rotate, thereby driving the rotation of the two second gears 21. Through the meshing of the second gears 21 and the first gear 28, the first gear 28 is driven to rotate. The first gear 28 drives the second ring 29 to rotate, and the second ring 29 drives the adjustment assembly 70 and the adjustment plate 37 inside the adjustment assembly 70 to rotate;

[0049] The control terminal then controls the simultaneous operation of the mixing motor 18 and the air pump 15. The mixing motor 18 drives the rotation of the rotating shaft 44. The rotating shaft 44 drives the stirring blade 43 and the spiral conveyor blade 42 to rotate simultaneously. The stirring blade 43 prevents the dust in the mixing barrel 16 from caking. The spiral conveyor blade 42 rotates to convey the dust into the blowing box 20. After the exhaust pipe 41 is started, the dust in the blowing box 20 is blown out. The dust in the blowing box 20 enters the two first communication grooves 47 on both sides through the two hoses 22 respectively, then enters the second communication groove 48 and finally is discharged from the dust spraying port 36. Most of the dust sprayed from the dust spraying port 36 will be sprayed to the connection positions of the output shaft, input shaft and bearings of the planetary reducer under the guiding action of the adjustment plate 37. Due to the rotation of the second ring 29, the dust spraying port 36 is driven to rotate, thereby realizing the circumferential dust spraying detection of the planetary reducer.

[0050] The above embodiments are only for explaining the technical concept and features of the present invention. The purpose is to enable those skilled in this field to understand the content of the present invention and implement it, and it cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. A detection workbench for a planetary reducer for a thin coal seam mining machine, comprising a machine body (11), wherein a detection chamber (12) is arranged in the machine body (11), characterized in that: An air pump (15) is fixed in the detection chamber (12); an air inlet of the air pump (15) is fixedly connected to an air inlet pipe (14) extending to the outside; an air outlet of the air pump (15) is fixedly connected to an exhaust pipe (41); the exhaust pipe (41) is fixedly connected to a blow box (20); and the blow box (20) is connected to a feeding assembly (80); Two hoses (22) are fixedly connected to the blowing box (20), the ends of the hoses (22) are connected to the spray head assemblies (60), and a lifting platform is arranged between the two spray head assemblies (60); The two spray head assemblies (60) are symmetrically arranged with respect to the lifting platform.

2. The detection workbench of a planetary reducer for a thin coal seam shearer according to claim 1, characterized in that: The nozzle assembly (60) comprises a first ring (27) and a second ring (29), wherein the first ring (27) and the second ring (29) are rotatably mounted, the second ring (29) being closer to the working panel (25) than the first ring (27), a first connecting groove (47) being provided in the first ring (27), the hose (22) being fixedly connected to the first connecting groove (47), a second connecting groove (48) being provided in the second ring (29) and connected to the first connecting groove (47), a dust ejection port (36) being provided in the second connecting groove (48) and facing the working panel (25), a first gear (28) being fixed on the second ring (29), a ring groove (51) being provided in the first ring (27), a sliding ring (52) being fixed to the second ring (29) being slidably mounted in the ring groove (51).

3. The detection workbench of a planetary reducer for a thin coal seam shearer according to claim 2, characterized in that: The nozzle assembly (60) also includes a moving assembly for adjusting the position of the No. 1 ring (27), and the sliding assembly includes a slider (46) fixed to the bottom of the No. 1 ring (27), the slider (46) is slidably installed in the track (24), and a lead screw (45) is rotatably installed in the track (24), and the lead screw (45) and the slider (46) are both threaded to enable the two to be threadedly connected, and the end of the lead screw (45) extends into the detection chamber (12) and is fixedly connected to a knob (23).

4. The detection workbench of a planetary reducer for a thin coal seam shearer according to claim 1, characterized in that: The feeding assembly (80) includes a mixing barrel (16) arranged on the top of the blowing box (20), the top of the mixing barrel (16) is fixedly connected to the feeding port (17), a rotating shaft (44) is rotatably installed in the mixing barrel (16), the top of the rotating shaft (44) extends to the outside and is fixed to the motor shaft of the mixing motor (18), the mixing motor (18) is fixed to the top of the mixing barrel (16), and the mixing barrel (16) and the blowing box (20) are fixedly connected through a conveying pipe (19), stirring blades (43) are evenly fixed on the rotating shaft (44) in the mixing barrel (16), and the bottom of the rotating shaft (44) is inserted into the conveying pipe (19) and fixed with spiral conveying blades (42).

5. The detection workbench of a planetary reducer for a thin coal seam shearer according to claim 1, characterized in that: The lifting platform comprises a working panel (25), a base (26) fixed to the bottom wall of the detection chamber (12) is arranged at the bottom of the working panel (25), and a telescopic mechanism (32) and at least one guiding mechanism (33) are arranged between the base (26) and the working panel (25).

6. The detection workbench of a planetary reducer for a thin coal seam shearer according to claim 2, characterized in that: The first gear (28) is meshed with the second gear (21), and the two second gears (21) are fixed on a connecting shaft (31), and the connecting shaft (31) is fixed to the motor shaft of the power motor (13).

7. The detection workbench of the planetary reducer for the thin coal seam shearer according to claim 6, characterized in that: The width of the second gear (21) is greater than the width of the first gear (28).

8. The detection workbench of a planetary reducer for a thin coal seam shearer according to claim 1, characterized in that: The nozzle assembly (60) also includes an adjustment assembly (70) mounted on the second ring (29), the adjustment assembly (70) including a pair of fixed heads (35) fixed to the second ring (29), an adjustment plate (37) rotatably mounted between the fixed heads (35), the adjustment plate (37) being located at the position of the dust ejection port (36), a torsion spring (38) being mounted between the adjustment plate (37) and the fixed heads (35), a pressing strip (50) being attached to the top of the adjustment plate (37), a guide rod (40) being slidably provided on the pressing strip (50) and being fixed to the second ring (29), a threaded rod (39) being threadedly provided on the pressing strip (50) and being rotatably connected to the second ring (29), the dust ejected from the dust ejection port (36) will be sprayed onto the adjustment plate (37) and move along the surface of the adjustment plate (37).

9. The detection workbench of the planetary reducer for the thin coal seam shearer according to claim 8, characterized in that: A hole is opened between the second ring (29) and the first ring (27).

10. The detection workbench of a planetary reducer for a thin coal seam shearer according to claim 1, characterized in that: A control terminal is integrated in the machine body (11).

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