Electric hoist running along annular track

Abstract

The utility model belongs to the technical field of electric hoists, and relates to an electric hoist running along an annular track, which comprises an electric hoist and a sports car, the electric hoist comprises a hoist support, the sports car comprises a sports car shaft and a roller assembly, a support shaft is rotatably arranged in the hoist support, and the upper end of the support shaft extends out of the electric hoist. The axis of the supporting shaft is distributed in the vertical direction, the sliding-down shaft is perpendicularly connected to the upper end of the supporting shaft and synchronously rotates along with the supporting shaft, and the roller assemblies are arranged at the two ends of the sliding-down shaft and are in clearance fit with the electric hoist, and the roller assemblies are driven by the sliding-down motor to run on the annular track. According to the electric hoist running along the annular track, the electric hoist can flexibly run on the annular track, and the electric hoist is simple in structure, small in size and low in cost.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric hoists and relates to an electric hoist running along a circular track. Background Art

[0002] Electric hoists are increasingly used in various industries that require lifting due to their small size, simple structure, and accurate positioning. Existing electric hoists generally run in a straight line. For some special needs, electric hoists need to run on circular tracks, but because electric hoists have difficulty turning when lifting heavy objects, they are very easy to derail. The common way to deal with this is to use multiple electric hoists to run at the same time, which undoubtedly greatly increases the cost of use.

[0003] Chinese utility model patent CN 219751694 U (publication date: 2023.09.26) discloses an electric hoist for non-linear track operation, including a hoist bracket, a ring track and an electric running trolley, the lower part of the electric running trolley is fixedly connected to the hoist bracket, the upper part of the electric running trolley is hung on the ring track through rollers, and the left and right sides of the electric running trolley are provided with anti-roller devices, the anti-roller device includes an anti-roll bracket and an anti-roller, the anti-roll bracket is fixed on the hoist bracket, the anti-roller is arranged on the anti-roll bracket, the outer surface of the anti-roller is provided with a rubber layer, the rubber layer of the anti-roller is in contact with the lower surface of the ring track, and a safety hook is fixed on the hoist bracket, the safety hook is an inverted L-shaped structure, the safety hook cooperates with the lower flange of the ring track, and a gap is left between the safety hook and the lower flange of the ring track; the structural design is safe and reliable, avoids the electric hoist from tilting at both ends, ensures smooth operation, prevents derailment, and the hook is completely consistent with the running track and the operating line during hoisting.

[0004] The above electric hoist can run on a non-linear track by adding a reverse roller device to prevent derailment. However, the above electric hoist not only needs to add an additional device, but also increases the size of the electric hoist and increases the cost. In addition, the operation of the above electric hoist is still not flexible enough. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides an electric hoist running along a circular track, which can enable the electric hoist to run flexibly on the circular track, and has a simple structure, a small size and a low cost.

[0006] In order to solve the above technical problems, the purpose of the utility model is achieved through the following technical solutions:

[0007] An electric hoist running along a circular track comprises an electric hoist and a sports car, wherein the electric hoist comprises a hoist bracket, and the sports car comprises a sports car shaft and a roller assembly, wherein a support shaft with an upper end extending outside the electric hoist is rotatably arranged inside the hoist bracket, and the axis of the support shaft is distributed in a vertical direction, the sports car shaft is vertically connected to the upper end of the support shaft and rotates synchronously with the support shaft, the roller assembly is arranged at both ends of the sports car shaft and is gap-matched with the electric hoist, and the roller assembly is driven by the sports car motor to run on the circular track.

[0008] In the above-mentioned electric hoist running along the circular track, a rotating seat is arranged in the hoist bracket, the supporting shaft includes a rotating end and a connecting end, the rotating end is rotatably connected to the rotating seat, and the running shaft is passed through the connecting end. Preferably, the rotating end is a round shaft, and the connecting end is a square shaft.

[0009] In the above-mentioned electric hoist running along the circular track, a shoulder structure is formed between the connection end and the rotating end to cooperate with the rotating seat for limiting the position, a bearing installation groove is provided at the bottom of the rotating seat, a locking nut is screwed at the bottom of the rotating end, and a thrust bearing is provided between the bearing installation groove and the locking nut. The above-mentioned structure can also be replaced by other rotating structures, for example, a shaft sleeve is provided in the rotating seat, and the rotating end is rotatably connected in the shaft sleeve.

[0010] In the above-mentioned electric hoist running along the circular track, two support shafts are provided, and the two support shafts are distributed front and back and are respectively connected to the running axle and the roller assembly.

[0011] In the above-mentioned electric hoist running along the circular track, the roller assembly includes a main roller assembly and an auxiliary roller assembly, the main roller assembly and the auxiliary roller assembly are respectively connected to the two ends of the sports car axle, the main roller assembly is driven by the sports car motor, and the auxiliary roller assembly is driven by the main roller assembly. Further, the main roller assembly and the auxiliary roller assembly are respectively fixedly connected to the sports car axle through a locking device.

[0012] In the above-mentioned electric hoist running along the circular track, the main roller assembly includes a main mounting plate fixedly connected to the sports car shaft, a pair of main rollers distributed front and back are rotatably arranged on the main mounting plate, and circumferential roller teeth are respectively arranged on the main rollers. A sports car motor is arranged on one side of the main mounting plate, and a driving gear that meshes with two roller teeth at the same time is rotatably arranged on the main mounting plate, and the driving gear is connected to the motor shaft of the sports car motor; the auxiliary roller assembly includes an auxiliary mounting plate fixedly connected to the sports car shaft, and a pair of auxiliary rollers distributed front and back are rotatably arranged on the auxiliary mounting plate.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The utility model provides an electric hoist running along a circular track. By adding a rotatable support shaft, the sports car system can rotate freely relative to the electric hoist. When running on a non-linear track, the roller is mounted on the track. The roller will change its angle at any time with the direction of the track and always be consistent with the direction of the track. The electric hoist running on a circular track provided by the utility model can make the electric hoist run flexibly on the circular track, and has a simple structure, a small size and a low cost.

[0015] 2. The utility model further adopts a dual independent sports car system. When the sports car runs on a circular track, the front and rear sports car systems can rotate freely, and the front and rear sports car systems can run at different angles, so as to better fit the circular track and can turn more smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 It is a cross-sectional view of the utility model;

[0018] Figure 3 It is a three-dimensional diagram of a sports car (single) of the utility model;

[0019] Figure numerals: 1. electric hoist; 2. sports car; 3. hoist bracket; 4. sports car shaft; 5. roller assembly; 6. support shaft; 7. sports car motor; 8. rotating seat; 9. rotating end; 10. connecting end; 11. locking nut; 12. thrust bearing; 13. main mounting plate; 14. main roller; 15. roller teeth; 16. driving gear; 17. auxiliary mounting plate; 18. auxiliary roller. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings. Figure 1-3 :

[0021] An electric hoist running along a circular track comprises an electric hoist 1 and a sports car 2, wherein the electric hoist 1 comprises a hoist bracket 3, and the sports car 2 comprises a sports car shaft 4 and a roller assembly 5. A support shaft 6 is rotatably arranged inside the hoist bracket 3, and the upper end of the support shaft 6 extends outside the electric hoist 1. The axis of the support shaft 6 is distributed in the vertical direction. The sports car shaft 4 is vertically connected to the upper end of the support shaft 6 and rotates synchronously with the support shaft 6. The roller assembly 5 is arranged at both ends of the sports car shaft 4 and is gap-matched with the electric hoist 1. The roller assembly 5 is driven by a sports car motor 7 to run on the circular track.

[0022] Compare with Figure 1During operation, the sports car motor 7 drives the roller assembly 5 to rotate, and the roller assembly 5 drives the electric hoist 1 for hanging heavy objects to move forward along the circular track. When encountering a non-linear track, the support shaft 6, the sports car shaft 4 and the roller assembly 5 rotate along the direction of the track and relative to the electric hoist 1 at the same time. On the premise that the electric hoist 1 maintains the original direction, the sports car 2 system is driven by the support shaft 6 to complete the steering alone, and the electric hoist 1 can run smoothly along the track.

[0023] Compare with Figure 2 The rotation structure of the support shaft 6 of this embodiment is: a rotating seat 8 is arranged in the gourd bracket 3, the support shaft 6 includes a rotating end 9 and a connecting end 10, the rotating end 9 is rotatably connected to the rotating seat 8, and the sports car shaft 4 is inserted into the connecting end 10. Preferably, the rotating end 9 is a round shaft, and the connecting end 10 is a square shaft.

[0024] Furthermore, the rotating structure of the support shaft 6 and the rotating seat 8 is: a shoulder structure that cooperates with the rotating seat 8 to limit the position is formed between the connecting end 10 and the rotating end 9, a bearing mounting groove is provided at the bottom of the rotating seat 8, a locking nut 11 is threaded at the bottom of the rotating end 9, and a thrust bearing 12 is provided between the bearing mounting groove and the locking nut 11.

[0025] In order to make the electric hoist 1 further adapt to the circular track, especially to the situation of large turning angle, this embodiment further adopts a dual independent sports car system:

[0026] Compare with Figure 2 There are two support shafts 6, which are distributed front and back and are respectively connected to the sports car axle 4 and the roller assembly 5. The two support shafts 6 are independently arranged, and each support shaft 6 can drive the sports car axle 4 and the roller assembly 5 connected thereto to turn independently.

[0027] Compare with Figure 3 The driving structure of the roller assembly 5 is as follows: the roller assembly 5 includes a main roller assembly and a secondary roller assembly, the main roller assembly and the secondary roller assembly are respectively connected to the two ends of the sports car shaft 4, the main roller assembly is driven by the sports car motor 7, and the secondary roller assembly is driven by the main roller assembly. Further, the main roller assembly and the secondary roller assembly are respectively fixedly connected to the sports car shaft 4 through a locking device.

[0028] Furthermore, the main roller assembly includes a main mounting plate 13 fixedly connected to the sports car shaft 4, a pair of main rollers 14 distributed front and rear are rotatably provided on the main mounting plate 13, and circumferential roller teeth 15 are respectively provided on the main rollers 14, a sports car motor 7 is provided on one side of the main mounting plate 13, a driving gear 16 meshing with two roller teeth 15 for transmission is rotatably provided on the main mounting plate 13, and the driving gear 16 is connected to the motor shaft of the sports car motor 7 for transmission; the auxiliary roller assembly includes an auxiliary mounting plate 17 fixedly connected to the sports car shaft 4, and a pair of auxiliary rollers 18 distributed front and rear are rotatably provided on the auxiliary mounting plate 17.

[0029] During operation, the motor shaft of the sports car motor 7 drives the driving gear 16 to rotate, and the driving gear 16 simultaneously drives the two main rollers 14 to rotate through the roller teeth 15 meshing therewith, so that the sports car 2 moves forward on the track, and cooperates with the driven auxiliary roller 18 to make the sports car 2 run smoothly.

[0030] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric hoist running along a circular track, comprising an electric hoist (1) and a sports car (2), wherein the electric hoist (1) comprises a hoist bracket (3), and the sports car (2) comprises a sports car shaft (4) and a roller assembly (5), characterized in that: A support shaft (6) is rotatably arranged in the hoist bracket (3), the upper end of which extends to the outside of the electric hoist (1); the axis of the support shaft (6) is distributed in the vertical direction; the running shaft (4) is vertically connected to the upper end of the support shaft (6) and rotates synchronously with the support shaft (6); the roller assembly (5) is arranged at both ends of the running shaft (4) and is gap-matched with the electric hoist (1); and the roller assembly (5) is driven by the running motor (7) to run on a circular track.

2. The electric hoist running along a circular track according to claim 1, characterized in that: A rotating seat (8) is arranged inside the gourd support (3); the support shaft (6) comprises a rotating end (9) and a connecting end (10); the rotating end (9) is rotatably connected to the rotating seat (8); and the sports car shaft (4) is inserted into the connecting end (10).

3. The electric hoist running along a circular track according to claim 2, characterized in that: A shaft shoulder structure that cooperates with the rotating seat (8) to limit the position is formed between the connecting end (10) and the rotating end (9); a bearing installation groove is provided at the bottom of the rotating seat (8); a locking nut (11) is threadedly connected to the bottom of the rotating end (9); and a thrust bearing (12) is provided between the bearing installation groove and the locking nut (11).

4. The electric hoist running along a circular track according to claim 1, characterized in that: Two support shafts (6) are provided, and the two support shafts (6) are distributed front and back and are respectively connected to the sports car shaft (4) and the roller assembly (5).

5. The electric hoist running along a circular track according to claim 1, characterized in that: The roller assembly (5) comprises a main roller assembly and a secondary roller assembly, wherein the main roller assembly and the secondary roller assembly are respectively connected to two ends of a sports car shaft (4), the main roller assembly is driven by a sports car motor (7), and the secondary roller assembly is driven by the main roller assembly.

6. The electric hoist running along a circular track according to claim 5, characterized in that: The main roller assembly comprises a main mounting plate (13) fixedly connected to a sports car shaft (4); a pair of main rollers (14) distributed front and rear are rotatably arranged on the main mounting plate (13); the main rollers (14) are respectively provided with circumferential roller teeth (15); a sports car motor (7) is arranged on one side of the main mounting plate (13); a driving gear (16) meshing with two roller teeth (15) is rotatably arranged on the main mounting plate (13); the driving gear (16) is connected to the motor shaft of the sports car motor (7); the auxiliary roller assembly comprises an auxiliary mounting plate (17) fixedly connected to the sports car shaft (4); a pair of auxiliary rollers (18) distributed front and rear are rotatably arranged on the auxiliary mounting plate (17).

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