Single-point crane for stage

Abstract

The utility model discloses a single-point crane for a stage, which relates to the technical field of stage cranes and comprises a frame body, a groove is arranged above the frame body, a first motor is fixedly connected to one side of the frame body, a screw rod is fixedly connected to one end, penetrating through the groove, of the first motor, a sliding seat is sleeved on the outer side surface of the screw rod, and the sliding seat is fixedly connected to the other end of the frame body. A supporting frame is fixedly connected to the upper portion of the sliding seat, a wire guide wheel is rotationally connected to the inner wall of the supporting frame, a lubricating device is arranged on one side of the sliding seat, a support is fixedly connected to the front side face of the frame body, a second motor is fixedly connected to one side of the support, and a rotating shaft is fixedly connected to the output end of the second motor; the outer side face of the rotating shaft is sleeved with a take-up roller. And by arranging the wire guide wheel, the lubricating device and the take-up roller, the steel wire rope can be coated with oil conveniently, the friction force between the steel wire rope and the wire guide wheel is reduced, wire rising of the steel wire rope is avoided, and the safety of the device is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of stage cranes, in particular to a single-point crane for stages. Background Art

[0002] Single-point crane is an important stage lifting equipment.

[0003] For example, the Chinese patent with application number "CN201921448417.9" ​​is named "a stage single-point crane", which includes a bracket, a frame is provided on one side outer wall of the bracket, a rotating shaft is provided on the inner wall on the opposite side of the bracket, and a drum is sleeved on the side outer wall of the rotating shaft, a wire rope is wound on the side outer wall of the drum, a first reduction box is provided on one side outer wall of the bracket, and the output end of the first reduction box is connected to one end of the rotating shaft through a coupling, and the input end of the first reduction box is connected to a first motor, and a guide mechanism is provided on the top outer wall of the bracket on one side of the drum, and the guide mechanism includes a slide groove opened on one side of the top outer wall of the bracket, and a slider is slidably connected to the side inner wall of the slide groove, and a screw rod is provided on the inner wall on the opposite side of the bracket. The utility model enables the wire rope to be evenly and orderly arranged on the drum, prevents the wire rope from being misplaced on the drum and causing the wire rope to wear, improves the safety of the crane when in use, and can adjust the maximum speed of the wheel when it is in safe rotation.

[0004] When the device is in use, the wire rope is arranged on the drum through the guide rope wheel, but the wire rope will rust over a long period of time and has no lubricating effect, which increases the friction between the wire rope and the pulley, easily causing the wire to wire up, resulting in poor safety. Utility Model Content

[0006] In view of the shortcomings of the prior art, the utility model provides a single-point hoist for stage, which is convenient for oiling the wire rope by arranging a wire pulley, a lubrication device and a take-up roller, thereby reducing the friction between the wire rope and the wire pulley, avoiding the wire rope from being tangled, and greatly improving the safety of the device. Utility Model Content

[0007] The utility model also provides a single-point hoist for a stage as described above, comprising: a frame, a groove is provided on the top of the frame, a first motor is fixedly connected to one side of the frame, a lead screw is fixedly connected to one end of the first motor that passes through the groove, a sliding seat is sleeved on the outer side of the lead screw, a support frame is fixedly connected to the top of the sliding seat, a guide wheel is rotatably connected to the inner wall of the support frame, a lubrication device is provided on one side of the sliding seat, a support is fixedly connected to the front side of the frame, a second motor is fixedly connected to one side of the support, a rotating shaft is fixedly connected to the output end of the second motor, and a take-up roller is sleeved on the outer side of the rotating shaft. By providing the guide wheel, the lubrication device and the take-up roller, it is convenient to oil the wire rope, reduce the friction between the wire rope and the guide wheel, avoid wire rope pulling, and greatly improve the safety of the device.

[0008] According to the single-point hoist for stage, the lubrication device includes a fixed seat fixedly connected to one side above the sliding seat, an oil tank fixedly connected to the top of the fixed seat, a connecting frame fixedly connected to one side of the oil tank, a receiving cavity is arranged on both sides of the inner wall of the connecting frame, a slide plate is slidably connected in the receiving cavity, a spring is fixedly connected to one end of the slide plate located inside the receiving cavity, and an oil pad is fixedly connected to the end of the slide plate away from the spring. The oil pad on one side of the slide plate is pushed by the action force of the spring to apply oil to the outer side of the wire rope.

[0009] According to the single-point hoist for stage, an oil rope is arranged above the oil tank, and one end of the oil rope is fixedly connected to one side of the oil pad. The oil in the oil tank can be easily introduced into the oil pad through the oil rope.

[0010] According to the single-point hoist for stage, the inner side of the oil pad is in an arc shape, which is more conducive to oiling the outer side of the steel wire rope.

[0011] According to the single-point hoist for stage, the sliding seat is slidably connected with the groove, and the sliding seat is located on one side below the take-up roller. The steel wire rope is evenly wound on the take-up roller by moving the sliding seat.

[0012] According to the single-point hoist for stage, there are two wire wheels, and the two wire wheels correspond to each other up and down. The wire wheels are used to guide the wire rope, so as to avoid friction between the wire rope and the frame.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0015] Figure 1 This is a schematic diagram of the overall structure of a single-point hoist for stage use according to the utility model;

[0016] Figure 2 This is a schematic diagram of the oil tank structure of a single-point hoist for stage use in the utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of a connecting frame of a single-point hoist for stage use according to the utility model;

[0018] Figure 4 The utility model is a schematic diagram of the structure of a take-up roller of a single-point hoist for stage.

[0019] Legend:

[0020] 1. Frame; 2. Groove; 3. First motor; 4. Screw rod; 5. Sliding seat; 6. Support frame; 7. Wire guide wheel; 8. Lubricating device; 9. Support; 10. Second motor; 11. Rotating shaft; 12. Take-up roller; 801. Fixed seat; 802. Oil tank; 803. Connecting frame; 804. Accommodating chamber; 805. Slide plate; 806. Spring; 807. Oil pad; 8021. Oil rope. DETAILED DESCRIPTION

[0021] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0022] Reference Figure 1-4 The utility model embodiment is a single-point hoist for stage, which includes: a frame 1, a groove 2 is arranged on the top of the frame 1, a first motor 3 is fixedly connected to one side of the frame 1, and a screw rod 4 is fixedly connected to one end of the first motor 3 passing through the groove 2, and a sliding seat 5 is sleeved on the outer side of the screw rod 4, and the first motor 3 outputs the screw rod 4 to drive the sliding seat 5 to slide inside the groove 2, and a through hole is arranged above the sliding seat 5 for the wire rope to pass through the sliding seat 5, a support frame 6 is fixedly connected to the top of the sliding seat 5, and a guide wheel 7 is rotatably connected to the inner wall of the support frame 6, and the position of the wire rope is conveniently guided by the guide wheel 7, and a lubrication device 8 is arranged on one side of the sliding seat 5, a support 9 is fixedly connected to the front side of the frame 1, and a second motor 10 is fixedly connected to one side of the support 9, and a rotating shaft 11 is fixedly connected to the output end of the second motor 10, and a wire roller 12 is sleeved on the outer side of the rotating shaft 11, and the wire roller 12 is driven by the second motor 10 to output the rotating shaft 11 to reel and lower the wire rope.

[0023] The lubrication device 8 includes a fixed seat 801 fixedly connected to one side above the sliding seat 5, an oil tank 802 is fixedly connected to the top of the fixed seat 801, a connecting frame 803 is fixedly connected to one side of the oil tank 802, and a receiving cavity 804 is arranged on both sides of the inner wall of the connecting frame 803, a slide plate 805 is slidably connected in the receiving cavity 804, and a spring 806 is fixedly connected to one end of the slide plate 805 located inside the receiving cavity 804, and the slide plate 805 is driven to retract and retract in the receiving cavity 804 by the spring 806, and an oil pad 807 is fixedly connected to the end of the slide plate 805 away from the spring 806.

[0024] Working principle: When using it for the first time, one end of the wire rope is wound around the outer side of the take-up roller 12, and the wire rope is passed between the connecting frame 803 and the wire wheel 7. When the second motor 10 outputs the rotating shaft 11 to drive the take-up roller 12 to reel and lower the wire rope, the first motor 3 outputs the lead screw 4 to drive the sliding seat 5 to slide inside the groove 2, so that the wire wheel 7 guides the wire rope to prevent the wire rope from deviating. At the same time, during the process of reeling or lowering, the slide plate 805 at one end of the oil pad 807 approaches the two sides of the wire rope under the action of the spring 806, and oils the outer side of the wire rope, thereby reducing the friction between the wire rope and the wire wheel 7, thereby avoiding damage to the wire rope.

[0025] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A single-point hoist for stage, comprising: The frame (1) is characterized in that a groove (2) is provided on the top of the frame (1), a first motor (3) is fixedly connected to one side of the frame (1), one end of the first motor (3) passing through the groove (2) is fixedly connected to a screw rod (4), the outer side surface of the screw rod (4) is sleeved with a sliding seat (5), the top of the sliding seat (5) is fixedly connected to a support frame (6), the inner wall of the support frame (6) is rotatably connected to a guide wheel (7), a lubrication device (8) is provided on one side of the sliding seat (5), the front side of the frame (1) is fixedly connected to a support (9), one side of the support (9) is fixedly connected to a second motor (10), the output end of the second motor (10) is fixedly connected to a rotating shaft (11), and the outer side surface of the rotating shaft (11) is sleeved with a take-up roller (12).

2. A single-point hoist for stage according to claim 1, characterized in that: The lubricating device (8) comprises a fixed seat (801) fixedly connected to one side above the sliding seat (5); an oil tank (802) is fixedly connected to the top of the fixed seat (801); a connecting frame (803) is fixedly connected to one side of the oil tank (802); a receiving cavity (804) is provided on both sides of the inner wall of the connecting frame (803); a slide plate (805) is slidably connected in the receiving cavity (804); one end of the slide plate (805) located inside the receiving cavity (804) is fixedly connected to a spring (806); and one end of the slide plate (805) away from the spring (806) is fixedly connected to an oil pad (807).

3. A single-point hoist for stage according to claim 2, characterized in that: An oil rope (8021) is arranged above the oil tank (802), and one end of the oil rope (8021) is fixedly connected to one side of the oil pad (807).

4. A single-point hoist for stage according to claim 2, characterized in that: The inner side surface of the oil pad (807) is in an arc shape.

5. A single-point hoist for stage according to claim 1, characterized in that: The sliding seat (5) is slidably connected to the groove (2), and the sliding seat (5) is located on one side below the take-up roller (12).

6. A single-point hoist for stage according to claim 1, characterized in that: There are two wire wheels (7), and the two wire wheels (7) correspond to each other.

Images