Directional rope outlet device of single-layer winding drum

Abstract

The utility model discloses a directional rope outlet device of a single-layer winding drum. The directional rope outlet device comprises a driving mechanism, the winding drum, a transmission mechanism and a pulley mechanism. The driving mechanism is connected with the winding drum; a steel wire rope is wound on the winding drum; the winding drum is connected with the pulley mechanism through the transmission mechanism; the rope outlet end of the steel wire rope penetrates through the pulley mechanism. The directional rope outlet device of the single-layer winding drum is simple and compact in structure, convenient to install, good in flexibility and low in cost, an additional power device is not needed, the requirement that the rope outlet angle approaches 0 degree is met, meanwhile, the vertical distance between the winding drum and the guide pulley is shortened, and space occupation is avoided.

Description

Technical Field

[0001] The utility model relates to a quay crane hoisting technology, and more specifically to a directional rope-discharging device of a single-layer winding drum. Background Art

[0002] The reel is an important mechanical device, widely used in engineering, construction, aerospace and other fields. It plays a very important role, not only can it realize the transmission and conversion of force, but also can play a variety of functions such as support, lifting, and traction. Especially in the field of lifting technology, the hoisting operations of various medium and large projects require the reel to complete.

[0003] like Figure 1 As shown, in order to avoid the phenomenon of disordered ropes and cause operation failure, the arrangement of the wire rope 2 on the drum 1 needs to meet the requirement that the rope angle α is less than 1.5°, that is, the angle between the ropes at the starting and ending positions of the drum wire rope is less than 1.5°. At present, in order to ensure that the rope angle is less than 1.5°, the minimum vertical distance H between the center line of the drum 1 and the guide pulley 3 is specified when the drum 1 is designed. According to the general working conditions of the crane, for the grooved drum, the minimum distance is 15 times the drum diameter; for the grooveless drum, the minimum distance is 20 times the drum diameter. The diameter of the wire rope is generally 18mm to 99mm, and the drum diameter is 20 times the diameter of the wire rope. If the grooved drum uses an 18mm wire rope, the minimum value of H is 18×20×15=5400mm, that is, 5.4m; if the grooved drum uses a 99mm wire rope, the minimum value of H is 99×20×15=29700mm, that is, 29.7m. If the grooved drum uses 18mm wire rope, the minimum value of H is 18×20×20=7200mm, i.e. 7.2m; if the grooved drum uses 99mm wire rope, the minimum value of H is 99×20×20=39600mm, i.e. 39.6m. As the diameter of the wire rope increases, the minimum value of H doubles. In order to avoid spatial interference with the shaking wire rope, no other mechanisms or equipment can be arranged between the drum and the guide pulley, resulting in a waste of overall layout space. Utility Model Content

[0004] In view of the above-mentioned defects existing in the prior art, the purpose of the utility model is to provide a directional rope-discharging device for a single-layer winding drum, and to provide a directional rope-discharging device for a single-layer winding drum which has a simple and compact structure, is easy to install, has good flexibility and is low in cost. It does not require an additional power device, and while meeting the requirement that the rope-discharging angle is close to 0°, it shortens the vertical distance between the drum and the guide pulley to avoid space occupation.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A directional rope discharging device for a single-layer winding drum comprises a driving mechanism, a drum, a transmission mechanism and a pulley mechanism;

[0007] The driving mechanism is connected to the reel;

[0008] A steel wire rope is wound around the drum;

[0009] The reel is connected to the pulley mechanism through the transmission mechanism;

[0010] The outgoing end of the steel wire rope passes through the pulley mechanism.

[0011] Preferably, the driving mechanism includes a motor, a high-speed coupling, a first reducer and a reel coupling;

[0012] The output shaft of the motor is connected to the input shaft of the first reducer through the high-speed coupling;

[0013] The output shaft of the first reducer is connected to the reel coupling;

[0014] The reel coupling is connected to one end of the reel through a flange.

[0015] Preferably, the pulley mechanism comprises a track, a pulley bracket and a guide pulley;

[0016] The guide pulley is arranged on the pulley bracket;

[0017] The pulley bracket moves along the track through the running wheels;

[0018] The outgoing end of the steel wire rope passes through the guide pulley for directional outgoing rope.

[0019] Preferably, the transmission mechanism includes a first sprocket, a second sprocket, a third sprocket, a fourth sprocket and a second reducer;

[0020] The first sprocket is arranged on the other end of the reel;

[0021] The second sprocket is connected to the input shaft of the second reducer;

[0022] The output shaft of the second reducer is connected to the third sprocket;

[0023] The third sprocket is arranged at one end of the track, and the fourth sprocket is arranged at the other end of the track;

[0024] The first sprocket is connected to the second sprocket via a chain, and the third sprocket is connected to the fourth sprocket via a chain.

[0025] Preferably, a first support and a second support are respectively provided at both ends of the track;

[0026] The third sprocket is arranged on the first support;

[0027] The fourth sprocket is arranged on the second support.

[0028] Preferably, a built-in shaft is provided in the reel;

[0029] The reel coupling is connected to one end of the built-in shaft through the flange;

[0030] The first sprocket is arranged on the other end of the built-in shaft.

[0031] Preferably, a bearing seat is further provided on the other end of the built-in shaft.

[0032] The utility model provides a directional rope-discharging device for a single-layer winding drum, which has a compact structure and can ensure safe and effective rope discharging of the wire rope without rope climbing or rope tangling when the rope discharging angle approaches 0°. It can also avoid space occupation and does not affect the arrangement of other mechanisms or equipment, making the entire space layout reasonable and effective, which has important practical significance. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the arrangement of the existing drum and guide pulley;

[0034] Figure 2 It is a structural schematic diagram of a directional rope-discharging device of the utility model. DETAILED DESCRIPTION

[0035] In order to better understand the above technical solution of the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0036] Combination Figure 2 As shown, the utility model provides a directional rope-discharging device for a single-layer winding drum, which comprises a driving mechanism, a drum 8, a transmission mechanism and a pulley mechanism.

[0037] The driving mechanism is connected with the reel.

[0038] A single-layer steel wire rope 20 is wound around the drum 8, and the outgoing end of the steel wire rope 20 passes through the pulley mechanism.

[0039] The reel 8 is connected to the pulley mechanism through a transmission mechanism.

[0040] The driving mechanism includes a motor 4 , a high-speed coupling 5 , a first reducer 6 and a reel coupling 7 .

[0041] The output shaft of the motor 4 is connected to the input shaft of the first reducer 6 through a high-speed coupling 5 .

[0042] The output shaft of the first reducer 6 is connected to the reel coupling 7 .

[0043] The drum coupling 7 is then connected to one end of the drum 8 via a flange, thereby driving the drum 8 to rotate.

[0044] The pulley mechanism includes a track 15 , a pulley bracket 17 and a guide pulley 18 .

[0045] The guide pulley 18 is fixed on the pulley bracket 17 .

[0046] The pulley bracket 17 reciprocates horizontally on the track 15 via the running wheels 16, thereby driving the guide pulley 18 to reciprocate horizontally.

[0047] The outgoing end of the steel wire rope 20 passes through the guide pulley 18 and is directed out.

[0048] The transmission mechanism includes a first sprocket 10 , a second sprocket 11 , a third sprocket 13 , a fourth sprocket 19 and a second reducer 12 .

[0049] The first sprocket 10 is mounted on the other end of the drum 8 .

[0050] The second sprocket 11 is connected to the input shaft of the second reducer 12 .

[0051] The output shaft of the second reducer 12 is connected to the third sprocket 13 .

[0052] The third sprocket 13 is mounted on one end of the track 15 , and the fourth sprocket 19 is mounted on the other end of the track 15 .

[0053] The first sprocket 10 is connected to the second sprocket 11 via a chain, and the third sprocket 13 is connected to the fourth sprocket 19 via a chain.

[0054] A first support 14 and a second support 21 are respectively provided at both ends of the track 15 .

[0055] The third sprocket 13 is correspondingly fixed on the first support 14 .

[0056] The fourth sprocket 21 is correspondingly fixed on the second support 21 .

[0057] A built-in shaft is installed in the reel 8.

[0058] The drum coupling 7 is connected to one end of the built-in shaft through a flange, and the first sprocket 10 is connected to the other end of the built-in shaft.

[0059] A bearing seat 9 is also installed on the other end of the built-in shaft.

[0060] The built-in shaft of the drum 8 is connected to the bearing seat 9 and the first sprocket 10, and the torque is transmitted to the first sprocket 10. The first sprocket 10 and the second sprocket 11 are connected by a chain and move in the same direction. The second sprocket 11 is connected to the input shaft of the second reducer 12, and the output shaft of the second reducer 12 is connected to the third sprocket 13. The third sprocket 13 is connected to the fourth sprocket 19 through a chain. By changing the transmission ratio of the first sprocket 10 and the second sprocket 11 and the transmission ratio of the second reducer 12, the movement speed of the chain connecting the third sprocket 13 and the fourth sprocket 19 is matched with the pitch of the wire rope 20 on the drum 8.

[0061] The directional rope-discharging device of the utility model does not require an additional power device, and can ensure that the rope-discharging direction of the wire rope 20 on the drum 8 and the center of the guide pulley 18 are always kept parallel in the vertical direction. It does not need to meet the minimum requirement of the vertical distance between the drum 8 and the guide pulley 18, and can ensure that the rope-discharging angle of the wire rope 20 approaches 0°, and the directional rope-discharging can be completed without occupying the space swept by the wire rope 20 when it is discharged.

[0062] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and are not intended to limit the present invention. As long as they are within the spirit of the present invention, any changes or modifications to the above embodiments will fall within the scope of the claims of the present invention.

Claims

1. A directional rope discharging device for a single-layer winding drum, characterized in that: It includes a driving mechanism, a reel, a transmission mechanism and a pulley mechanism; The driving mechanism is connected to the reel; A steel wire rope is wound around the drum; The reel is connected to the pulley mechanism through the transmission mechanism; The outgoing end of the steel wire rope passes through the pulley mechanism. The pulley mechanism comprises a track, a pulley bracket and a guide pulley; The guide pulley is arranged on the pulley bracket; The pulley bracket moves along the track through the running wheels; The outgoing end of the steel wire rope passes through the guide pulley for directional outgoing rope.

2. The directional rope discharging device of the single-layer winding drum according to claim 1 is characterized in that: The driving mechanism includes a motor, a high-speed coupling, a first speed reducer and a reel coupling; The output shaft of the motor is connected to the input shaft of the first reducer through the high-speed coupling; The output shaft of the first reducer is connected to the reel coupling; The reel coupling is connected to one end of the reel through a flange.

3. The directional rope discharging device of the single-layer winding drum according to claim 1 is characterized in that: The transmission mechanism includes a first sprocket, a second sprocket, a third sprocket, a fourth sprocket and a second reducer; The first sprocket is arranged on the other end of the reel; The second sprocket is connected to the input shaft of the second reducer; The output shaft of the second reducer is connected to the third sprocket; The third sprocket is arranged at one end of the track, and the fourth sprocket is arranged at the other end of the track; The first sprocket is connected to the second sprocket via a chain, and the third sprocket is connected to the fourth sprocket via a chain.

4. The directional rope discharging device of the single-layer winding drum according to claim 3 is characterized in that: The two ends of the track are respectively provided with a first support and a second support; The third sprocket is arranged on the first support; The fourth sprocket is arranged on the second support.

5. The directional rope discharging device of the single-layer winding drum according to claim 3 is characterized in that: The reel is provided with a built-in shaft; The reel coupling is connected to one end of the built-in shaft via a flange; The first sprocket is arranged on the other end of the built-in shaft.

6. The directional rope discharging device of the single-layer winding drum according to claim 5, characterized in that: A bearing seat is also arranged on the other end of the built-in shaft.

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