CN109384159A - A kind of traction device of vertical lift system - Google Patents

Abstract

The invention belongs to mechanical traction technical fields, and in particular to a kind of traction device of vertical lift system.Including driving motor, multi-stage speed reducer, cord winder, support base, reel stand and travel switch；Cord winder is fixed on reel stand, and reel stand is arranged on support base, transverse shifting, travel switch can be fixed on support base, and the maximum stroke of reel stand is arranged on support base, reel stand transverse movement can be made to stop in time；Driving motor is connect with multi-stage speed reducer, and multi-stage speed reducer is connect with cord winder.The present invention uses multi-stage speed-reducing, and hauling speed is slowly steady, and system stability is higher, reduces personnel depaly, reduces the complexity of equipment；The environment that the present invention can be used for having similar vertical lift to require, practicability is stronger, easy to spread, has great economic benefit.

Description

A traction device for a vertical lift system

technical field

The invention belongs to the technical field of mechanical traction, and in particular relates to a traction device of a vertical lifting system.

Background technique

With the continuous development of science and technology, the working conditions of modern machinery and equipment are complex, and the safety requirements in the field of vertical lifting are constantly rising. At present, various vertical lifting and lowering traction devices have been produced on the market. Most of these products are very bulky and have narrow application occasions; the working environment is harsh and the reliability is poor; the traction speed of the vertical device is fast, which makes the lifting process of the traction object extremely unstable. , usually requires a separate staff or other devices to stabilize. Therefore, a more reliable, stable and practical vertical traction device has become the direction of demand in the field of vertical lifting.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a traction device for a vertical lift system to overcome the shortcomings of various existing traction devices.

To achieve the above object, the technical scheme adopted in the present invention is:

A traction device for a vertical lifting system includes a drive motor, a multi-stage reducer, a rope winding device, a support seat, a reel frame and a travel switch; the rope winding device is fixed on the reel frame, and the reel frame is arranged on the support seat , can move laterally on the support seat, the travel switch is fixed on the support seat, and is set at the maximum stroke of the reel frame, so that the lateral movement of the reel frame can be stopped in time; the drive motor is connected with the multi-stage reducer, and the multi-stage deceleration The device is connected to the rope winding device.

A sliding block is fixed on the reel frame, a guide rail is fixed on the support seat, and the sliding block can move laterally on the guide rail.

The multi-stage reducer is composed of a gear reducer, a worm gear reducer and a planetary reducer in series, and the drive motor includes two parallel DC servo motors one and two. The input shaft gears of the gear reducer are connected in parallel.

The rope winding device includes a reel, a wire rope, a rope clamp, a synchronous belt housing, a ball screw, a nut, a nut fixing seat, a pulley, a synchronous belt and a second pulley; the ball screw, the nut and the nut fixing seat A screw-nut mechanism is formed, the nut is fixed on the nut fixing seat, the nut fixing seat is fixed on the supporting seat, the ball screw passes through the nut, and both ends of the ball screw are supported by the bearings on the reel frame; The belt and the second pulley constitute a synchronous pulley mechanism. The first pulley is connected to the output end cover of the reel. The second belt pulley is connected to one end of the ball screw. The output shaft of the planetary reducer is connected to the input end cover of the reel. The output shaft of the reducer drives the reel to rotate, the output end cover of the reel drives the pulley to rotate, the first pulley transmits the power to the second pulley through the synchronous belt, and the second pulley transmits the power to the lead screw; On the drum stand, the drum is provided with a rope clamp, and the beginning end of the wire rope is clamped on the drum through the rope clamp.

The reel frame is provided with a synchronous belt casing, and the first pulley, the synchronous belt and the second pulley are located inside the synchronous belt casing.

The pulley one is connected to the output end cover of the reel through a key.

The second pulley is connected to one end of the ball screw through a key.

The lower end of the rope clip is in the shape of an arc, and the rope clip and the reel are provided with threaded holes to fasten the wire rope; the rope clip simultaneously clamps two strands of wire rope, and there are 5 ropes in one circumferential direction of the reel. folder.

By setting the number of teeth of the first pulley and the second pulley, the ball screw drives the reel frame to cooperate with the lateral movement of the reel winding rope, so that the steel wire ropes are compactly arranged on the reel.

The reel receives the forward and reverse rotation of the output shaft of the planetary reducer to carry out the process of taking up and paying off the line, and at the same time makes the ball screw forward and reverse, so that the rotation of the ball screw is converted into the lateral movement of the reel frame.

The beneficial effects obtained by the present invention are:

(1) The traction device of the vertical lift system is connected to two servo motors at the same time, and each motor can be used as a separate motor to ensure that at least one motor is connected to the system, which has high reliability.

(2) The traction device of the vertical lift system is provided with a worm gear reducer, which can ensure that the system can realize self-locking in the case of power failure, and the safety can be greatly increased.

(3) The traction device of the vertical lift system adopts multi-stage deceleration, the traction speed is slow and stable, the system stability is high, the personnel allocation is reduced, and the complexity of the equipment is reduced.

(4) The traction device of the vertical lifting system adopts the synchronous pulley and the screw nut mechanism to cooperate with the rope winding device to perform lateral movement, which can better ensure the angle between the wire rope and the middle surface of the guide wheel on the subsequent parts when the wire rope is retracted and released.

(5) The traction device of the vertical lift system is small in size and can be used in environments with similar vertical lift requirements. It has strong practicability, is easy to popularize, and has great economic benefits.

Description of drawings

Fig. 1 is the overall structure diagram of the traction device of the vertical lift system;

Fig. 2 is the concrete structure diagram of the traction device of the vertical lift system;

Fig. 3 is the sectional view of the rope winding device of the traction device of the vertical lift system;

Figure 4 is a diagram showing the connection between the motor and the reducer of the traction device of the vertical lift system.

Fig. 5 is the wire rope fixing schematic diagram of the traction device of the vertical lift system;

In the figure: 1. Drive motor; 2. Multi-stage reducer; 3. Rope winding device; 4. Support seat; 5. Reel frame; 6. Travel switch; 7. Gear reducer; 8. Worm gear reducer; 9 , planetary reducer; 10, reel; 11, wire rope; 12, rope clamp; 13, slider; 14, guide rail; 15, timing belt housing; 16, ball screw; 17, nut; 18, nut holder ;19, output shaft of planetary reducer; 20, pulley one; 21, synchronous belt; 22, pulley two; 23, shaft gear of motor one; 24, input shaft gear of gear reducer; 25, shaft of motor two gear.

Detailed ways

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

As shown in Figures 1 to 5, the traction device of the vertical lifting system of the present invention includes a drive motor 1, a multi-stage reducer 2, a rope winding device 3, a support base 4, a reel frame 5 and a travel switch 6; The device 3 is fixed on the reel holder 5, the reel holder 5 is arranged on the support base 4, and can move laterally on the support base 4, the travel switch 6 is fixed on the support base 4, and is set at the maximum stroke of the reel holder 5 At this position, the lateral movement of the reel frame 5 can be stopped in time.

The multi-stage reducer 2 is composed of a gear reducer 7, a worm gear reducer 8 and a planetary reducer 9 in series. The drive motor 1 includes two parallel DC servo motors one and two, the shaft gear 23 of the motor one and the shaft of the second motor. The gear 25 is also connected in parallel with the input shaft gear 24 of the gear reducer.

The rope winding device 3 includes a reel 10, a wire rope 11, a rope clamp 12, a slider 13, a guide rail 14, a timing belt housing 15, a ball screw 16, a nut 17, a nut fixing seat 18, a pulley 1 20, and a timing belt 21 and pulley two 22; the ball screw 16, the nut 17 and the nut fixing seat 18 constitute a screw and nut mechanism, the nut 17 is fixed on the nut fixing seat 18, the nut fixing seat 18 is fixed on the supporting seat 4, and the ball screw 16 wears Through the nut 17, both ends of the ball screw 16 are supported by the bearings on the reel frame 5, the first pulley 20 is connected to the reel 10 through a key, and the second pulley 22 is connected to one end of the ball screw 16 through a key. The first wheel 20, the synchronous belt 21 and the second pulley 22 constitute a synchronous pulley mechanism. The output shaft 19 of the planetary reducer is connected with the input end cover of the reel 10 through bolts, and the output end cover of the reel 10 is connected by a key to drive the pulley 1. 20 rotates, the first pulley 20 transmits the power to the second pulley 22 through the synchronous belt 21, and the second pulley 22 also transmits the power to the lead screw 16 through the key connection. The lead screw nut mechanism and the synchronous pulley mechanism cooperate with the single-layer winding rope Lateral movement.

The reel 10 is arranged on the reel frame 5, and a rope clamp 12 is arranged on the reel 10. The beginning end of the wire rope 11 is clamped on the reel 10 through the rope clamp 12, and one end of the reel 10 is connected to the output shaft 19 of the planetary reducer. The output shaft 19 drives the reel 10 to rotate to perform the process of taking up and paying off the line; the reel frame 5 is provided with a synchronous belt casing 15, and the first pulley 20, the synchronous belt 21 and the second pulley 22 are located inside the synchronous belt casing 15. The block 13 is fixed on the reel frame 5 , the support base 4 is fixed with a guide rail 14 , and the slider 13 can move laterally on the guide rail 14 .

The lower end of the rope clip 12 is in the shape of a simulating circular arc to ensure that the wire rope 11 can be caught without slipping. The rope clips 12 hold two strands of wire ropes 11 at the same time, and five rope clips 12 are provided on one circumferential direction of the drum 10 to enhance reliability.

By setting the number of teeth of the first pulley 20 and the second pulley 22, the ball screw 16 can drive the reel frame 5 to cooperate with the lateral movement of the reel 10, so that the wire ropes 11 are compactly arranged on the reel 10. The reel 10 receives the forward and reverse rotation of the output shaft of the multi-stage reducer 2 to carry out the process of taking up and paying off the line, and at the same time makes the ball screw 16 forward and reverse, so that the rotation of the ball screw 16 is converted into a sliding movement fixed on the reel frame 5 . The lateral movement of the block 13 on the guide rails 14 thereby realizes the lateral movement of the reel holder 5 .

Claims (10)

1. a kind of traction device of vertical lift system, it is characterised in that: including driving motor (1), multi-stage speed reducer (2), volume Rope device (3), support base (4), reel stand (5) and travel switch (6)；Cord winder (3) is fixed on reel stand (5), reel Frame (5) is arranged on support base (4), transverse shifting, travel switch (6) can be fixed on support base (4) on support base (4) On, and the maximum stroke in reel stand (5) is set, reel stand (5) transverse movement can be made to stop in time；Driving motor (1) with Multi-stage speed reducer (2) connection, multi-stage speed reducer (2) are connect with cord winder (3).

2. the traction device of vertical lift system according to claim 1, it is characterised in that: on the reel stand (5) It is fixed with sliding block (13), is fixed on support base (4) guide rail (14), sliding block (13) can the transverse movement on guide rail (14).

3. the traction device of vertical lift system according to claim 1, it is characterised in that: the multi-stage speed reducer (2) be composed in series by gear reduction unit (7), worm reducer (8) and planetary reduction gear (9), driving motor (1) include two simultaneously The DC servo motor one and motor two of connection, the shaft gear (23) of motor one and the shaft gear (25) of motor two subtract with gear simultaneously The input shaft gear (24) of fast device is in parallel.

4. the traction device of vertical lift system according to claim 3, it is characterised in that: the cord winder (3) It is solid including reel (10), wirerope (11), rope clamp (12), synchronous belt shell (15), ball-screw (16), nut (17), nut Reservation (18), belt wheel one (20), synchronous belt (21) and belt wheel two (22)；Ball-screw (16), nut (17) and nut fixing seat (18) leadscrew-nut mechanism is constituted, nut (17) is fixed on nut fixing seat (18), and nut fixing seat (18) is fixed on support On seat (4), ball-screw (16) passes through nut (17), and the bearing support on reel stand (5) is leaned at ball-screw (16) both ends；Band It takes turns one (20), synchronous belt (21) and belt wheel two (22) and constitutes synchronous pulley mechanism, belt wheel one (20) is connected to the defeated of reel (10) Outlet covers, and belt wheel two (22) is connected to one end of ball-screw (16), planetary reduction gear output shaft (19) and reel (10) End cap connection is inputted, planetary reduction gear output shaft (19) band movable reel (10) rotates, and the output end cap of reel (10) drives belt wheel Power is transmitted to belt wheel two (22) by synchronous belt (21) by one (20) rotation, belt wheel one (20), and power is transmitted to by belt wheel two (22) Lead screw (16)；Reel (10) is arranged on reel stand (5), is provided on reel (10) rope clamp (12), and wirerope (11) beginning is logical Rope clamp (12) is crossed to be clipped on reel (10).

5. the traction device of vertical lift system according to claim 4, it is characterised in that: on the reel stand (5) It is provided with synchronous belt shell (15), it is internal that belt wheel one (20), synchronous belt (21) and belt wheel two (22) are located at synchronous belt shell (15).

6. the traction device of vertical lift system according to claim 4, it is characterised in that: the belt wheel one (20) is logical The output end that key connection is crossed in reel (10) covers.

7. the traction device of vertical lift system according to claim 4, it is characterised in that: the belt wheel two (22) is logical Key connection is crossed in one end of ball-screw (16).

8. the traction device of vertical lift system according to claim 4, it is characterised in that: described rope clamp (12) lower end For profiling arc-shaped, it is provided with threaded hole on rope clamp (12) and reel (10), with fastening steel wire rope (11)；Rope clamp (12) blocks simultaneously Two strand steel wire ropes (11) are equipped with 5 rope clamps (12) on (10) circumferencial directions of reel.

9. the traction device of vertical lift system according to claim 4, it is characterised in that: by the way that belt wheel one (20) are arranged It realizes that ball-screw (16) drive the transverse movement of reel stand (5) cooperation reel (10) rope rolling with the number of teeth of belt wheel two (22), makes Wirerope (11) are compact is arranged on reel (10).

10. the traction device of vertical lift system according to claim 4, it is characterised in that: the reel (10) is logical The positive and negative rotation for crossing reception planetary reduction gear output shaft (19) carries out folding and unfolding line process, while making ball-screw (16) positive and negative rotation, So that the rotation of ball-screw (16) is converted into the transverse movement of reel stand (5).