Chain plate type non-blind area power cutting device for mining ore with incomplete joint development

Abstract

The invention belongs to the technical field of mine mining, and particularly relates to a chain plate type non-blind area power cutting device for mining ores with incomplete joint development. Comprising a driving source, a gear transmission unit and a cutting roller, the gear transmission unit comprises an input gear, an input shaft rolling bearing seat, a second-stage gear set, a second-stage pin shaft, a second-stage output gear, a third-stage input gear, a third-stage pin shaft, a sun gear set, a middle rolling bearing seat, a fourth-stage planetary gear, a fourth-stage planetary carrier, an output shaft, an output gear ring, an output rolling bearing seat and an output constraint shaft. The whole gear transmission system is transversely arranged, the space is more compact, the force transmission direction is not changed, the problem of the strength of a triangular profile shaft caused by previous vertical arrangement is solved, straight gear or bevel gear transmission is stable and reliable, and large loads and impact can be borne.

Description

Technical Field

[0001] The invention belongs to the technical field of mining, and in particular is a chain plate type power cutting device without blind spots for mining ores with incomplete joint development. Background Art

[0002] At present, for the mining of ores with incomplete joint development, the transmission form of the power cutting device adopted is that the left and right high-speed input ends are arranged horizontally, and then the power is converted longitudinally through bevel gears and triangular equidistant profile shafts, and then restored to the horizontal direction through bevel gears. Since the cutting roller needs to be arranged outside the reducer, and the roller cannot be arranged in the middle position of the triangular equidistant profile shaft, the size of the triangular equidistant profile shaft cannot be too large, which causes the problem that the strength of the triangular equidistant profile shaft is limited. At the same time, since the triangular equidistant profile shaft is in an oil-free dry grinding state during operation, the triangular equidistant profile shaft is easily damaged; in addition, the outer side of the power cutting device where the triangular equidistant profile shaft is located currently adopts the method of welding wear-resistant plates or cutting rings to extrude and crush rocks. In the mining of ores with incomplete joint development, it is difficult to extrude and peel off the rocks, which seriously affects the excavation and mining efficiency. Summary of the invention

[0003] In order to solve the problem in the prior art that the triangular equidistant profile shaft is easily damaged and the rock is difficult to be squeezed and peeled off, the present invention provides a chain plate type blind-zone-free power cutting device for mining ores with incomplete joint development, comprising a driving source, a gear transmission unit and a cutting drum;

[0004] The gear transmission unit includes an input gear, an input shaft rolling bearing seat, a second-stage gear set, a second-stage pin shaft, a second-stage output gear, a third-stage input gear, a third-stage pin shaft, a sun gear set, an intermediate rolling bearing seat, a fourth-stage planetary gear, a fourth-stage planetary carrier, an inner gear ring, an output shaft, an output gear ring, an output rolling bearing seat, and an output constraint shaft;

[0005] Among them, the input gear is connected to the output end of the driving source as the first-stage input, and the input gear is rotatably constrained on the input shaft rolling bearing seat; the input gear is meshed with the second-stage gear set for transmission, and the second-stage gear set is rotatably constrained on the second-stage pin shaft; the second-stage gear set is meshed with the second-stage output gear for transmission, and the inner ring of the second-stage output gear is key-connected with the third-stage input gear for transmission, and the third-stage input gear is rotatably constrained on the third-stage pin shaft;

[0006] The third-stage input gear meshes with the sun gear set for transmission, and the sun gear set is rotatably constrained on the intermediate rolling bearing seat; the sun gear set meshes with the fourth-stage planetary gear for transmission, and the fourth-stage planetary gear meshes with the inner gear ring, and the fourth-stage planetary gear is constrained on the fourth-stage planetary carrier through the planetary shaft, and the fourth-stage planetary carrier is key-connected with the output shaft for transmission; the output shaft is key-connected with the output gear ring for transmission, and the output gear ring is key-connected with the output rolling bearing seat for transmission, and the output rolling bearing seat is rotatably constrained on the output constraint shaft;

[0007] The output constraint shaft, the second-stage pin shaft and the third-stage pin shaft are all fixedly connected to the housing, and the outer end of the output rolling bearing seat is connected to the output end gland for axially limiting the output shaft and the output gear ring; the sun gear set, the output gear ring and the output shaft are coaxially arranged, and the axes of the input gear, the second-stage gear set, the second-stage output gear and the third-stage input gear are arranged parallel to the direction of the output shaft, and the above axes are arranged in the same plane; the output rolling bearing seat is key-connected with the cutting drum, and the sprocket is arranged on the cutting drum and is connected to a chain plate with cutting teeth.

[0008] Optionally, the input shaft rolling bearing seat includes a small input shaft rolling bearing seat and a large input shaft rolling bearing seat, wherein the input gear is constrained to the small input shaft rolling bearing seat through a seventh rolling bearing, the small input shaft rolling bearing seat is connected to the large input shaft rolling bearing seat through screws, and an eighth rolling bearing is arranged between the input gear and the large input shaft rolling bearing seat for support.

[0009] Optionally, the second-stage gear set is constrained on the second-stage pin shaft by two sixth rolling bearings, a second-stage rolling bearing spacer ring is arranged between the two sixth rolling bearings, and the second-stage pin shaft is connected to the housing by screws; the third-stage input gear is constrained on the third-stage pin shaft by two fourth rolling bearings, and a third-stage rolling bearing spacer ring is arranged between the two fourth rolling bearings; the sun gear set is constrained on the intermediate rolling bearing seat by the third rolling bearing.

[0010] Optionally, an internal spline is provided on the inner surface of the output gear ring, and an external spline matching the internal spline is provided on the outer surface of the output shaft; an external spline is provided on the outer surface of the output gear ring, and an internal spline matching the external spline is provided on the inner circle surface of the output rolling bearing seat.

[0011] Optionally, the output rolling bearing seat is constrained on the output rolling bearing cover and the output constraint shaft through a first rolling bearing, and an output rolling bearing cover is arranged between the tooth surface of the output ring gear close to the fourth-stage planetary gear and the end surface of the output constraint shaft close to the output ring gear; the output rolling bearing cover is constrained on the output constraint shaft through screws, a seal is installed between the output constraint shaft and the output ring gear, the output constraint shaft is constrained on the output shaft through a second rolling bearing, and the output constraint shaft is connected to the inner ring gear and the housing through screws.

[0012] Optionally, a floating seal is used between the output constraint shaft and the output rolling bearing seat, supplemented by a labyrinth form, a sealing ring is provided at the top of the output shaft, and the output end gland is constrained at the outer end of the output rolling bearing seat by screws.

[0013] Optionally, the input gear, the second-stage gear set, the second-stage output gear, the third-stage input gear, the sun gear set, the fourth-stage planetary gear and the output ring gear are all symmetrically arranged along an axial direction perpendicular to the output shaft.

[0014] Optionally, the cutting drum is connected to the output rolling bearing seat by a flat key, the sprocket is fixedly connected to the cutting drum by a screw, and a plurality of slots matching the teeth of the sprocket are provided at the connection between the chain plate and the sprocket, and the teeth of the sprocket are snapped into the slots.

[0015] Beneficial effects of the present invention:

[0016] 1. The overall gear transmission system is arranged horizontally, the space is more compact, the force transmission direction will not change, and the strength problem of the triangular surface shaft caused by the previous vertical arrangement is solved;

[0017] 2. Spur gear or helical gear transmission is stable and reliable and can withstand large loads and impacts.

[0018] 3. The first-stage input gear and the output roller are arranged symmetrically on the left and right, so the forces are more balanced during the cutting process and are independent of each other. Failure on one side will not damage the other side, which further improves the reliability of the reducer.

[0019] 4. A sprocket and a chain plate are arranged in the middle of the cutting device, and the sprocket and the chain plate are driven to rotate by the roller, so that the cutting and breaking of industrial minerals such as ores with incomplete joint development in the middle of the cutting device can be achieved, blind-spot cutting can be achieved, and the cutting and mining efficiency can be further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of a chain plate type power cutting device without blind spots;

[0021] Figure 2 It is a schematic diagram of the structure of the cutting drum, chain plate and sprocket.

[0022] in:

[0023] 1. Output end gland; 2. Output gear ring; 3. Output rolling bearing seat; 4. First rolling bearing; 5. Output rolling bearing gland; 6. Skeleton seal 1; 7. Output shaft; 8. Output constraint shaft; 9. Floating seal; 10. Second rolling bearing; 11. Spacer ring 1; 12. Inner gear ring; 13. Spacer ring 2; 14. Intermediate rolling bearing seat; 15. Sun gear set; 16. Third rolling bearing; 17. Adjusting gasket; 18. Sealing ring; 19. Screw plug; 20. Second stage output gear; 21. Third stage input gear; 22. Third stage pin shaft; 23. Fourth rolling bearing; 24 Third stage rolling bearing spacer; 25. Fifth rolling bearing; 26. The third-stage intermediate sleeve; 27, the second-stage gear set; 28, the sixth rolling bearing; 29, the second-stage rolling bearing spacer ring; 30, the second-stage pin shaft; 31, the second-stage intermediate sleeve; 32, the input shaft; 33, the housing; 34, the large rolling bearing seat of the input shaft; 35, the small rolling bearing seat of the input shaft; 36, the skeleton seal 2; 37, the input gear; 38, the seventh rolling bearing; 39, the eighth rolling bearing; 40, the fourth-stage planetary carrier; 41, the fourth-stage planetary adjustment ring; 42, the ninth rolling bearing; 43, the fourth-stage planetary inner spacer ring; 44, the fourth-stage planetary gear; 45, the planetary shaft; 46, the roller; 47, the sprocket; 48, the chain plate; 49, the pick. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] like Figure 1 , Figure 2As shown, a chain plate type blind-zone-free power cutting device for mining ores with incomplete joint development includes a gear transmission unit and a cutting drum 46. The gear transmission unit includes a driving source, an input gear 37, an input shaft rolling bearing seat, a second-stage gear set 27, a second-stage pin 30, a second-stage output gear 20, a third-stage input gear 21, a third-stage pin 22, a sun gear set 15, an intermediate rolling bearing seat 14, a fourth-stage planetary gear 44, a fourth-stage planetary carrier 40, an inner gear ring 12, an output shaft 7, an output gear ring 2, an output rolling bearing seat 3, and an output constraint shaft 8. Among them, the input gear 37 is connected to the output end of the driving source as the first-stage input, and the input gear 37 is rotatably constrained on the input shaft rolling bearing seat; the input gear 37 is meshed with the second-stage gear set 27 for transmission, and the second-stage gear set 27 is rotatably constrained on the second-stage pin 30; the second-stage gear set 27 is meshed with the second-stage output gear 20 for transmission, and the inner ring of the second-stage output gear 20 is key-connected with the third-stage input gear 21 for transmission, and the third-stage input gear 21 is rotatably constrained on the third-stage pin 22; the third-stage input gear 21 is meshed with the sun gear set 15 for transmission, and the sun gear set 15 is rotatably constrained on the intermediate rolling bearing seat 14; the sun gear set 15 is meshed with the fourth-stage planetary gear 44 for transmission, and the fourth-stage planetary gear 44 is meshed with the inner gear ring 12 The fourth-stage planetary gear 44 is constrained on the fourth-stage planetary carrier 40 through the planetary shaft 45, and the fourth-stage planetary carrier 40 is key-connected with the output shaft 7 for transmission; the output shaft 7 is key-connected with the output gear ring 2 for transmission, the output gear ring 2 is key-connected with the output rolling bearing seat 3 for transmission, and the output rolling bearing seat 3 is rotatably constrained on the output constraint shaft 8, a skeleton seal 16 is arranged between the output constraint shaft 8 and the output gear ring 2, a spacer ring 11 is arranged between the output shaft 7 and the output constraint shaft 8, and a spacer ring 2 13 is arranged between the fourth-stage planetary gear 44 and the sun gear set 15; the output constraint shaft 8, the second-stage pin shaft 30, and the third-stage pin shaft 22 are all fixedly connected to the housing 33, and the outer end of the output rolling bearing seat 3 is connected with an output end pressure cover 1 for axially limiting the output shaft 7 and the output gear ring 2.

[0026] The sun gear set 15, the output gear ring 2, and the output shaft 7 are coaxially arranged, and the axes of the input gear 37, the second-stage gear set 27, the second-stage output gear 20, and the third-stage input gear 21 are arranged parallel to the direction of the output shaft 7, and the above axes are arranged in the same plane. Specifically, the input gear 37, the second-stage gear set 27, the second-stage output gear 20, the third-stage input gear 21, the sun gear set 15, the fourth-stage planetary gear 44, and the output gear ring 2 are all symmetrically arranged along the axis direction perpendicular to the output shaft 7. In this way, the force during the cutting process is more balanced and independent of each other, and the other side will not be damaged due to a failure on one side, further improving the reliability of this embodiment. The cutting drum 46 is connected to the output rolling bearing seat 3 by a flat key, and the sprocket 47 is fixedly connected to the cutting drum 46 by screws. The connection between the chain plate 48 and the sprocket 47 is provided with a plurality of slots that match the teeth of the sprocket 47, and the teeth of the sprocket 47 are engaged in the slots.

[0027] On the basis of the above-mentioned embodiment, in a preferred embodiment, the input shaft rolling bearing seat includes a small input shaft rolling bearing seat 35 and a large input shaft rolling bearing seat 34, wherein the input gear 37 is constrained on the small input shaft rolling bearing seat 35 by a seventh rolling bearing 38, the small input shaft rolling bearing seat 35 is connected to the large input shaft rolling bearing seat 34 by screws, an eighth rolling bearing 39 is arranged between the input gear 37 and the large input shaft rolling bearing seat 34 for supporting, and a skeleton seal 2 36 is also arranged between the input gear 37 and the small input shaft rolling bearing seat 35.

[0028] On the basis of the above embodiments, in a preferred embodiment, the second-stage gear set 27 is constrained on the second-stage pin 30 by two sixth rolling bearings 28, a second-stage rolling bearing spacer 29 is arranged between the two sixth rolling bearings 28, the second-stage pin 30 is connected to the housing 33 by screws, and the outer side of the second-stage pin 30 is sleeved with a second-stage intermediate sleeve 31; the third-stage input gear 21 is constrained on the third-stage pin 22 by two fourth rolling bearings 23 and two fifth rolling bearings 25, a third-stage rolling bearing spacer 24 is arranged between the two fourth rolling bearings 23, and a third-stage intermediate sleeve 26 is sleeved on the outer side of the third-stage pin 22; the sun gear set 15 is constrained on the intermediate rolling bearing seat 14 by the third rolling bearing 16. Two ninth rolling bearings 42 are arranged between the fourth-stage planetary gear 44 and the planetary shaft 45, a fourth-stage planetary inner spacer 43 is arranged between the two ninth rolling bearings 42, and a fourth-stage planetary adjustment ring 41 is arranged between the fourth-stage planetary gear 44 and the fourth-stage planetary carrier 40.

[0029] Specifically, an internal spline is provided on the inner surface of the output gear ring 2, and an external spline matching the spline is provided on the outer surface of the output shaft 7; an external spline is provided on the outer surface of the output gear ring 2, and an internal spline matching the external spline is provided on the inner circle surface of the output rolling bearing seat 3.

[0030] On the basis of the above-mentioned embodiments, in a preferred embodiment, the output rolling bearing seat 3 is constrained on the output rolling bearing cover 5 and the output constraint shaft 8 through the first rolling bearing 4, and an output rolling bearing cover 5 is arranged between the tooth surface of the output ring gear 2 close to the fourth-stage planetary gear 44 and the end surface of the output constraint shaft 8 close to the output ring gear 2; the output rolling bearing cover 5 is constrained on the output constraint shaft 8 through screws, an adjustment gasket 17 is arranged between the output rolling bearing cover 5 and the output constraint shaft 8, a seal is installed between the output constraint shaft 8 and the output ring gear 2, the output constraint shaft 8 is constrained on the output shaft 7 through the second rolling bearing 10, and the output constraint shaft 8 is connected to the inner ring gear 12 and the housing 33 through screws.

[0031] Among them, a floating seal 9 is used to seal between the output constraint shaft 8 and the output rolling bearing seat 3, and a labyrinth form is used as an auxiliary. A sealing ring 18 is provided at the top of the output shaft 7, and the output end gland 1 is constrained at the outer end of the output rolling bearing seat 3 by a screw plug 19.

[0032] Furthermore, the cutting drum 46 is connected to the output rolling bearing seat 3 via a flat key, and the sprocket 47 is fixedly connected to the cutting drum 46 via screws. The connection between the chain plate 48 and the sprocket 47 is provided with a plurality of slots matching the teeth of the sprocket 47, and the teeth of the sprocket 47 are engaged in the slots.

[0033] The working principle of this embodiment is as follows: the driving source drives the input gear 37 to rotate, and drives the second-stage gear set 27 to rotate through the meshing of spur or helical gears, thereby driving the second-stage output gear 20 to rotate, the second-stage output gear 20 rotates and drives the third-stage input gear 21 to rotate through the spline, the third-stage input gear 21 drives the sun gear set 15 to rotate through the meshing of spur or helical gears, the sun gear set 15 drives the fourth-stage planetary gear 44 to rotate, the fourth-stage planetary gear 44 drives the fourth-stage planetary carrier 40 to rotate, the fourth-stage planetary carrier 40 drives the output shaft 7 to rotate through the spline, the output shaft 7 drives the output gear ring 2 to rotate through the spline, the output gear ring 2 drives the output rolling bearing seat 3 to rotate through the spline, the output rolling bearing seat drives the cutting drum 46 to rotate through the flat key to cut and break the rock, the drum 46 drives the sprocket 47 to rotate, the sprocket 47 drives the chain plate 48 to rotate, so as to realize the cutting and breaking of the rock in the middle of the cutting device.

Claims

1. A chain plate type power cutting device without blind spots for mining ores with incomplete joint development. It is characterized in that It includes a driving source, a gear transmission unit and a cutting drum (46); The gear transmission unit comprises an input gear (37), an input shaft rolling bearing seat, a second-stage gear set (27), a second-stage pin shaft (30), a second-stage output gear (20), a third-stage input gear (21), a third-stage pin shaft (22), a sun gear set (15), an intermediate rolling bearing seat (14), a fourth-stage planetary gear (44), a fourth-stage planetary carrier (40), an inner gear ring (12), an output shaft (7), an output gear ring (2), an output rolling bearing seat (3), and an output constraint shaft (8); The input gear (37) is connected to the output end of the driving source as the first-stage input, and the input gear (37) is rotatably constrained on the input shaft rolling bearing seat; the input gear (37) is meshed with the second-stage gear set (27) for transmission, and the second-stage gear set (27) is rotatably constrained on the second-stage pin shaft (30); the second-stage gear set (27) is meshed with the second-stage output gear (20) for transmission, and the inner ring of the second-stage output gear (20) is key-connected with the third-stage input gear (21) for transmission, and the third-stage input gear (21) is rotatably constrained on the third-stage pin shaft (22); The third-stage input gear (21) is meshed with the sun gear set (15) for transmission, and the sun gear set (15) is rotatably constrained on the intermediate rolling bearing seat (14); the sun gear set (15) is meshed with the fourth-stage planetary gear (44) for transmission, the fourth-stage planetary gear (44) is meshed with the inner gear ring (12), the fourth-stage planetary gear (44) is constrained on the fourth-stage planetary carrier (40) through the planetary shaft (45), and the fourth-stage planetary carrier (40) is key-connected with the output shaft (7) for transmission; the output shaft (7) is key-connected with the output ring gear (2) for transmission, the output ring gear (2) is key-connected with the output rolling bearing seat (3) for transmission, and the output rolling bearing seat (3) is rotatably constrained on the output constraint shaft (8); The output constraint shaft (8), the second-stage pin shaft (30) and the third-stage pin shaft (22) are all fixedly connected to the housing (33); the outer end of the output rolling bearing seat (3) is connected to an output end pressure cover (1) for axially limiting the output shaft (7) and the output gear ring (2); the sun gear set (15), the output gear ring (2) and the output shaft (7) are coaxially arranged; the axes of the input gear (37), the second-stage gear set (27), the second-stage output gear (20) and the third-stage input gear (21) are arranged parallel to the direction of the output shaft (7), and the above axes are arranged in the same plane; the output rolling bearing seat (3) is key-connected to the cutting drum (46); the sprocket (47) is arranged on the cutting drum (46) and is connected to a chain plate (48) with cutting teeth (49).

2. A chain plate type power cutting device without blind spots for mining ores with incomplete joint development according to claim 1, Features: The input shaft rolling bearing seat comprises a small input shaft rolling bearing seat (35) and a large input shaft rolling bearing seat (34), wherein the input gear (37) is constrained on the small input shaft rolling bearing seat (35) through a seventh rolling bearing (38), the small input shaft rolling bearing seat (35) is connected to the large input shaft rolling bearing seat (34) through screws, an eighth rolling bearing (39) is arranged between the input gear (37) and the large input shaft rolling bearing seat (34) for supporting, and the large input shaft rolling bearing seat (34) is fixed to the housing (33) through screws.

3. A chain plate type power cutting device without blind spots for mining ores with incomplete joint development according to claim 1, Features: The second-stage gear set (27) is constrained on the second-stage pin shaft (30) through two sixth rolling bearings (28), a second-stage rolling bearing spacer ring (29) is arranged between the two sixth rolling bearings (28), and the second-stage pin shaft (30) is connected to the housing (33) through screws; the third-stage input gear (21) is constrained on the third-stage pin shaft (22) through two fourth rolling bearings (23), a third-stage rolling bearing spacer ring (24) is arranged between the two fourth rolling bearings (23); the sun gear set (15) is constrained on the intermediate rolling bearing seat (14) through the third rolling bearing (16).

4. A chain plate type non-blind-zone powered cutting device for mining ores with incomplete joint development according to claim 1, It is characterized in that The inner surface of the output gear ring (2) is provided with an internal spline, and the outer surface of the output shaft (7) is provided with an external spline that matches the internal spline; the outer surface of the output gear ring (2) is provided with an external spline, and the inner surface of the output rolling bearing seat (3) is provided with an internal spline that matches the external spline.

5. A chain plate type power cutting device without blind spots for mining ores with incomplete joint development according to claim 1, It is characterized in that The output rolling bearing seat (3) is constrained on the output rolling bearing cover (5) and the output constraining shaft (8) through the first rolling bearing (4); an output rolling bearing cover (5) is arranged between the tooth surface of the output gear ring (2) close to the fourth-stage planetary gear (44) and the end surface of the output constraining shaft (8) close to the output gear ring (2); the output rolling bearing cover (5) is constrained on the output constraining shaft (8) through screws, a seal is arranged between the output constraining shaft (8) and the output gear ring (2); the output constraining shaft (8) is constrained on the output shaft (7) through the second rolling bearing (10), and the output constraining shaft (8) is connected to the inner gear ring (12) and the housing (33) through screws.

6. A chain plate type power cutting device without blind spots for mining ores with incomplete joint development according to claim 1, It is characterized in that A floating seal (9) is used to seal the output constraint shaft (8) and the output rolling bearing seat (3), and a labyrinth is used as an auxiliary. A sealing ring (18) is provided at the top of the output shaft (7), and the output end gland (1) is constrained at the outer end of the output rolling bearing seat (3) through a screw plug (19).

7. A chain plate type power cutting device without blind spots for mining ores with incomplete joint development according to claim 1, It is characterized in that The input gear (37), the second-stage gear set (27), the second-stage output gear (20), the third-stage input gear (21), the sun gear set (15), the fourth-stage planetary gear (44) and the output ring gear (2) are all symmetrically arranged along an axial direction perpendicular to the output shaft (7).

8. A chain plate type power cutting device without blind spots for mining ores with incomplete joint development according to claim 1, It is characterized in that The cutting drum (46) is connected to the output rolling bearing seat (3) via a flat key, and the sprocket (47) is fixedly connected to the cutting drum (46) via screws. A plurality of slots matching the teeth of the sprocket (47) are provided at the connection between the chain plate (48) and the sprocket (47), and the teeth of the sprocket (47) are engaged in the slots.

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