Winding drum transmission device of winch

Abstract

The utility model discloses a winch winding drum transmission device which comprises a winch machine frame, a driving motor, a reduction gearbox and a winding drum are fixed on the top face of the winch machine frame, the driving motor drives the reduction gearbox to operate, a driving gear is fixed on an output shaft of the reduction gearbox, and the driving gear is meshed with a connecting gear disc installed on one side of the winding drum. A main rotating shaft is movably connected to the middle of the winding drum, and the two ends of the main rotating shaft extend out of the two ends of the winding drum and are fixed to supporting bases fixed to the left portion and the right portion of the top face of the winch rack. An annular part is formed on the left side wall of the outer side edge of a left end plate of the winding drum, the inner side wall of the annular part is a conical wall face, and the inner diameter of the left end of the annular part is larger than that of the right end. The winding drum can be driven to rotate through the steel wire rope or connected with the winding drum through the connecting gear disc, the winding drum is driven to rotate through the connecting gear disc, the steel wire rope is wound through rotation of the winding drum, and operation and use of the rock drilling hammerhead are met.

Description

Technical Field:

[0001] The utility model relates to the technical field of lifting equipment, and more specifically to a hoist drum transmission device. Background Art:

[0002] In some existing rock drilling devices, a steel wire rope is fixed to the top of the hammer head, which is wound around a winding drum. It is necessary to rotate the drum to wind the steel wire rope. When the hammer head hangs naturally, it is necessary to output the steel wire rope from the drum as the hammer head falls. At this time, the drum does not require a driving structure, but is driven to rotate by the steel wire rope. In the existing hoist, the winding and unwinding of the steel wire rope are both realized by the rotation of the drum, which makes it inapplicable to the free-fall rock drilling operation of the hammer head. Summary of the Utility Model:

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a hoist drum transmission device, which can drive the drum to rotate through the steel wire rope, or can be connected to the drum through a connecting gear disk, drive the drum to rotate through the connecting gear disk, and wind the steel wire rope through the rotation of the drum to meet the operation requirements of the rock drilling hammer head.

[0004] The solution of the utility model to solve the above technical problems is:

[0005] A hoist drum transmission device includes a hoist frame. A driving motor, a speed reducer, and a drum are fixed on the top surface of the hoist frame. The driving motor drives the speed reducer to operate. A driving gear is fixed on the output shaft of the speed reducer. The driving gear meshes with a connecting gear disk installed on one side of the drum. The middle of the drum is movably connected with a main rotating shaft. Both ends of the main rotating shaft extend out of both ends of the drum. Both ends of the main rotating shaft are fixed on support seats fixed on the left and right parts of the top surface of the hoist frame.

[0006] On the outer side edge of the left end plate of the drum, a circular ring portion is formed on the left side wall. The inner side wall of the circular ring portion is a conical wall surface, and its inner diameter at the left end is larger than that at the right end.

[0007] A connecting gear disk is arranged on the left side of the left end plate of the drum. The connecting gear disk is movably connected to the main rotating shaft through a bearing. A connecting disk is fixed on the right side of the connecting gear disk. The outer side wall of the connecting disk is a conical wall surface, and its outer diameter at the left end is larger than that at the right end. The right part of the connecting disk is inserted into the circular ring portion, and the outer side wall of the connecting disk is matched with the inner side wall of the circular ring portion.

[0008] An anti-slip elastic layer is fixed on the outer side wall of the connecting disk. The outer side wall of the anti-slip elastic layer is pressed against the inner side wall of the circular ring portion. Through the pressing of the anti-slip elastic layer, the connection is realized, ensuring a firm connection, so as to ensure that the connecting gear disk can drive the drum to rotate.

[0009] The drum includes a main cylinder body in the middle. Left and right end plates are welded and fixed to the left and right ends of the main cylinder body. Guide sleeve bodies are fixed in both the left and right parts of the main cylinder body. A moving sleeve is inserted into the guide sleeve body. A self-lubricating sleeve is fixed on the outer side wall of the moving sleeve, and the outer side wall of the self-lubricating sleeve is pressed against the inner side wall of the guide sleeve body. The main rotating shaft is movably connected to the inner side wall of the moving sleeve through a bearing. An external thread is formed on the outer side wall of the right rotating shaft part of the main rotating shaft that extends out of the middle through hole of the right end plate. An adjusting nut is screwed onto the external thread. A sleeve part is formed on the right side wall around the middle through hole of the right end plate. A thrust bearing is installed in the sleeve part. The left end face of the thrust bearing is pressed against the right side wall of the right end plate. The right rotating shaft part of the main rotating shaft is inserted into the thrust bearing. A spacer sleeve is inserted onto the right rotating shaft part of the main rotating shaft. The spacer sleeve is clamped between the right end plate of the thrust bearing and the left end face of the adjusting nut. The left parts of the spacer sleeve and the adjusting nut are inserted into the sleeve part.

[0010] A handle part is formed or welded and fixed on the outer side wall of the adjusting nut. The connecting part of the pushing oil cylinder is movably connected to a connecting seat on the top surface of the right side of the hoist frame through a hinge shaft. The end of the push rod of the pushing oil cylinder is movably connected to the handle part through a hinge shaft.

[0011] A connecting shaft is fixed to the end of the push rod of the pushing oil cylinder. The connecting shaft is inserted into the middle through hole of the handle part. The end of the connecting shaft extends out of the middle through hole of the handle part and two mutually pressing locking nuts are screwed onto it. There is a spacing between the end of the connecting shaft and the handle part. Having this spacing can ensure that when the push rod of the pushing oil cylinder pushes the adjusting nut to rotate, the adjusting nut can move left and right. Its left and right movement amplitude is small, but it already meets the movement requirements.

[0012] The prominent effect of the present utility model is:

[0013] Compared with the prior art, it can drive the drum to rotate through a steel wire rope, or it can be connected to the drum through a connecting gear disk and drive the drum to rotate through the connecting gear disk, and wind the steel wire rope through the rotation of the drum to meet the operation and use of the rock drilling hammer head. Brief description of the drawings:

[0014] Figure 1 is a partial top view of the present utility model;

[0015] Figure 2 is a partial side view of the present utility model;

[0016] Figure 3 is a partial cross-sectional view of the present utility model;

[0017] Figure 4 is Figure 3 a partial enlarged view of;

[0018] Figure 5 isFigure 3 Partial enlarged view of another part. Specific implementation manner:

[0019] In the embodiment, as shown in Figures 1 to 5 As shown, a winch drum transmission device includes a winch frame 10. A driving motor 20, a speed reducer 30, and a drum 40 are fixed on the top surface of the winch frame 10. The output shaft of the driving motor 20 is fixed to the input shaft of the speed reducer 30 and drives the speed reducer 30 to operate. A driving gear 31 is fixed on the output shaft of the speed reducer 30. The driving gear 31 meshes with a connecting gear disc 50 installed at one side of the drum 40. A main rotating shaft 60 is movably connected to the middle of the drum 40. Both ends of the main rotating shaft 60 extend out of both ends of the drum 40. Both ends of the main rotating shaft 60 are fixed on support seats 11 fixed on the left and right parts of the top surface of the winch frame 10.

[0020] On the left side wall at the outer edge of the left end plate of the drum 40, an annular portion 41 is formed. The inner side wall of the annular portion 41 is a conical wall surface, and its inner diameter at the left end is larger than that at the right end.

[0021] A connecting gear disc 50 is arranged on the left side of the left end plate of the drum 40. The connecting gear disc 50 is movably connected to the main rotating shaft 60 through a bearing. A connecting disc 51 is fixed on the right side of the connecting gear disc 50. The outer side wall of the connecting disc 51 is a conical wall surface, and its outer diameter at the left end is larger than that at the right end. The right part of the connecting disc 51 is inserted into the annular portion 41, and the outer side wall of the connecting disc 51 cooperates with the inner side wall of the annular portion 41.

[0022] Furthermore, an anti-slip elastic layer 52 is fixed on the outer side wall of the connecting disc 51, and the outer side wall of the anti-slip elastic layer 52 is pressed against the inner side wall of the annular portion 41.

[0023] Furthermore, the drum 40 includes a main cylinder body 42 in the middle. Left end plates and right end plates are welded and fixed to both the left and right ends of the main cylinder body 42. Guide sleeve bodies 43 are fixed in both the left and right parts of the main cylinder body 42. A moving sleeve 44 is inserted into the guide sleeve body 43. A self-lubricating sleeve 45 is fixed on the outer side wall of the moving sleeve 44. The outer side wall of the self-lubricating sleeve 45 is pressed against the inner side wall of the guide sleeve body 43. The main rotating shaft 60 is movably connected to the inner side wall of the moving sleeve 44 through a bearing. An intermediate spacer sleeve 70 is inserted on the main rotating shaft 60 between the two moving sleeves 44. Annular support plates 71 are fixed at both ends of the intermediate spacer sleeve 70. The main rotating shaft 60 is inserted on the two annular support plates 71. The outer end faces of the two annular support plates 71 are pressed against the corresponding end faces of the inner rings of the corresponding bearings. With this structure, the main cylinder body 42 can move left and right along the moving sleeve 44.

[0024] An external thread is formed on the outer sidewall of the right shaft portion of the main rotating shaft 60 extending out of the middle through hole of the right end plate. The adjusting nut 61 is screwed onto the external thread. A sleeve portion 46 is formed on the right sidewall around the middle through hole of the right end plate. A thrust bearing 461 is installed in the sleeve portion 46. The left end face of the thrust bearing 461 abuts against the right sidewall of the right end plate. The right shaft portion of the main rotating shaft 60 is inserted into the thrust bearing 461. A spacer sleeve 462 is inserted onto the right shaft portion of the main rotating shaft 60. The spacer sleeve 462 is clamped between the right end plate of the thrust bearing 461 and the left end face of the adjusting nut 61. The spacer sleeve 462 and the left portion of the adjusting nut 61 are inserted into the sleeve portion 46.

[0025] Furthermore, a handle portion 62 is formed or welded and fixed on the outer sidewall of the adjusting nut 61. The connecting portion of the pushing oil cylinder 63 is movably connected to the connecting seat on the top surface of the right side of the hoist frame 10 through a hinge shaft. The end of the push rod of the pushing oil cylinder 63 is movably connected to the handle portion 62 through a hinge shaft.

[0026] Furthermore, a connecting shaft is fixed to the end of the push rod of the pushing oil cylinder 63. The connecting shaft is inserted into the middle through hole of the handle portion. The end of the connecting shaft extends out of the middle through hole of the handle portion and is screwed with two mutually abutting locking nuts 631. There is a gap between the end of the connecting shaft and the handle portion 62.

[0027] Furthermore, the left portion of the main rotating shaft 60 extends out of the middle through hole of the left end plate. A left sleeve portion 47 is formed on the left sidewall around the middle through hole of the left end plate. A second thrust bearing 471 and a second spacer sleeve 472 are installed in the left sleeve portion 47. The second spacer sleeve 472 is on the left side of the second thrust bearing 471. A compression spring 48 is provided on the left side of the second spacer sleeve 472. The left portion of the main rotating shaft 60 is inserted onto the second thrust bearing 471, the second spacer sleeve 472 and the compression spring 48. A support sleeve 49 is inserted onto the main rotating shaft 60 at the right side of the connecting gear disc 50. The left sidewall of the left end plate of the support sleeve 49 abuts against the right end face of the inner ring of the corresponding bearing. The left portion of the compression spring 48 is inserted into the support sleeve 49. The right end of the compression spring 48 abuts against the left end face of the second spacer sleeve 472. The left end of the compression spring 48 bears on the right sidewall of the left end plate of the support sleeve 49. The right sidewall of the second spacer sleeve 472 abuts against the left end face of the second thrust bearing 471. The right sidewall of the second thrust bearing 471 abuts against the left sidewall of the left end plate.

[0028] When in use in this embodiment, when the steel wire rope wound on the drum 40 performs a free-fall action along with the hammer head connected to its end, it separates the anti-slip elastic layer 52 on the outer sidewall of the connecting disc 51 of the connecting gear disc 50 from the inner sidewall of the annular portion 41 through the compression spring 48. At this time, the drum 40 rotates along with the steel wire rope.

[0029] When it is necessary to wind the wire rope back, it is pushed by the push rod of the oil cylinder 63, so that the adjusting nut 61 rotates. At this time, the adjusting nut 61 moves a small distance to the left, driving the drum 40 to move a certain distance to the left along the main rotating shaft 60, so that the anti-slip elastic layer 52 on the outer side wall of the connecting disk 51 is pressed against the inner side wall of the annular part 41 to achieve connection. The connecting gear disk 50 is driven by the driving motor 20 to drive the reduction box 30 to operate, and the reduction box 30 drives the connecting gear disk 50 to operate. At this time, the drum 40 is driven to rotate, so as to wind the wire rope and realize winding. It can drive the drum 40 to rotate through the wire rope, or the connecting gear disk 50 is connected to the drum 40, and the drum 40 is driven to rotate through the connecting gear disk 50, and the wire rope is wound by the rotation of the drum 40 to meet the operation requirements of the rock drilling hammer head.

[0030] Finally, it should be pointed out that the above embodiments are only relatively representative examples of the present invention. Obviously, the present invention is not limited to the above embodiments and can have many variations. Any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention should be considered to fall within the protection scope of the present invention.

Claims

1. A winch drum drive device, comprising a winch frame (10), a drive motor (20), a reduction gearbox (30), and a drum (40) fixed to the top surface of the winch frame (10). The drive motor (20) drives the reduction gearbox (30) to operate. A drive gear (31) is fixed to the output shaft of the reduction gearbox (30), and the drive gear (31) meshes with a connecting gear disc (50) installed at one side of the drum (40). It is characterized in that: The middle part of the drum (40) is movably connected with a main rotating shaft (60). Both ends of the main rotating shaft (60) extend out of both ends of the drum (40), and both ends of the main rotating shaft (60) are fixed on the left and right support seats (11) fixed on the top surface of the winch frame (10). On the left side wall at the outer side edge of the left end plate of the drum (40), an annular part (41) is formed. The inner side wall of the annular part (41) is a conical wall surface, and its inner diameter at the left end is larger than that at the right end. On the left side of the left end plate of the drum (40), a connecting gear disc (50) is provided. The connecting gear disc (50) is movably connected to the main rotating shaft (60) through a bearing. A connecting disc (51) is fixed on the right side of the connecting gear disc (50). The outer side wall of the connecting disc (51) is a conical wall surface, and its outer diameter at the left end is larger than that at the right end. The right part of the connecting disc (51) is inserted into the annular part (41), and the outer side wall of the connecting disc (51) is matched with the inner side wall of the annular part (41).

2. The drum drive device of a winch according to claim 1, characterized in that: A non-slip elastic layer (52) is fixed on the outer side wall of the connecting disc (51), and the outer side wall of the non-slip elastic layer (52) is pressed against the inner side wall of the annular part (41).

3. A hoist drum drive device according to claim 1, characterized in that: The drum (40) includes a main cylinder body (42) in the middle. Left and right end plates are welded and fixed to both ends of the main cylinder body (42). Guide sleeve bodies (43) are fixed in both the left and right parts of the main cylinder body (42). A moving sleeve (44) is inserted into the guide sleeve body (43). A self-lubricating sleeve (45) is fixed on the outer side wall of the moving sleeve (44), and the outer side wall of the self-lubricating sleeve (45) is pressed against the inner side wall of the guide sleeve body (43). The main rotating shaft (60) is movably connected to the inner side wall of the moving sleeve (44) through a bearing. An external thread is formed on the outer side wall of the right rotating shaft part of the main rotating shaft (60) extending out of the middle through hole of the right end plate. An adjusting nut (61) is screwed on the external thread. A sleeve part (46) is formed on the right side wall around the middle through hole of the right end plate. A thrust bearing (461) is installed in the sleeve part (46). The left end face of the thrust bearing (461) is pressed against the right side wall of the right end plate. The right rotating shaft part of the main rotating shaft (60) is inserted into the thrust bearing (461). A spacer sleeve (462) is inserted on the right rotating shaft part of the main rotating shaft (60). The spacer sleeve (462) is clamped between the right end plate of the thrust bearing (461) and the left end face of the adjusting nut (61). The left parts of the spacer sleeve (462) and the adjusting nut (61) are inserted into the sleeve part (46).

4. A hoist drum drive device according to claim 3, characterized in that: A handle part (62) is formed or welded and fixed on the outer side wall of the adjusting nut (61). The connecting part of the pushing oil cylinder (63) is movably connected to the connecting seat on the top surface of the right side of the winch frame (10) through a hinge shaft. The end of the push rod of the pushing oil cylinder (63) is movably connected to the handle part (62) through a hinge shaft.

5. A hoist drum drive device according to claim 4, characterized in that: A connecting shaft is fixed at the end of the push rod of the pushing oil cylinder (63). The connecting shaft is inserted into the middle through hole of the handle part (62). The end of the connecting shaft extends out of the middle through hole of the handle part (62) and two mutually pressed locking nuts (631) are screwed on it. There is a distance between the end of the connecting shaft and the handle part (62).

6. A hoist drum drive device according to claim 1, characterized in that: The left part of the main rotating shaft (60) extends out of the middle through hole of the left end plate. A left sleeve part (47) is formed on the left side wall around the middle through hole of the left end plate. A second thrust bearing (471) and a second spacer sleeve (472) are installed in the left sleeve part (47). The second spacer sleeve (472) is on the left side of the second thrust bearing (471). A compression spring (48) is provided on the left side of the second spacer sleeve (472). The left part of the main rotating shaft (60) is inserted and sleeved on the second thrust bearing (471), the second spacer sleeve (472) and the compression spring (48). A support sleeve (49) is installed on the main rotating shaft (60) at the right side of the connecting gear disc (50). The left part of the compression spring (48) is inserted and sleeved in the support sleeve (49). The right end of the compression spring (48) presses against the left end face of the second spacer sleeve (472). The left end of the compression spring (48) acts on the right side wall of the left end plate of the support sleeve (49). The right side wall of the second spacer sleeve (472) presses against the left end face of the second thrust bearing (471). The right side wall of the second thrust bearing (471) presses against the left side wall of the left end plate.

7. A hoist drum drive device according to claim 3, characterized in that: An intermediate spacer sleeve (70) is inserted and sleeved on the main rotating shaft (60) between the two moving sleeves (44). Annular support plates (71) are fixed at both ends of the intermediate spacer sleeve (70). The main rotating shaft (60) is inserted and sleeved on the two annular support plates (71). The outer end faces of the two annular support plates (71) press against the corresponding end faces of the inner rings of the corresponding bearings.

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