Inhaul cable type top cover lifting appliance

Abstract

The utility model provides an inhaul cable type top cover lifting appliance which comprises a main beam, a plurality of power devices, a plurality of fixed pulleys, a movable pulley and a lifting beam, the main beam is used for bearing the power devices and the fixed pulleys which are evenly distributed and combined in a complete set mode, and each power device comprises a servo motor with a brake, a roller and a steel wire rope. The servo motor is fixedly installed on the main beam, a rotary shaft of the servo motor is fixedly connected with a roller, the roller, the fixed pulley and the movable pulley are sequentially sleeved with the steel wire rope, the movable pulley is fixedly installed at the top end of the hanging beam, and the bottom end of the hanging beam is provided with a connecting hole and fixedly connected with the top cover through a bolt. Compared with the adjustment of a sling, the operation of adjusting the balance of the top cover by using the steel wire rope is more convenient and simpler, and the whole top cover hoisting process is more convenient to operate, high in reliability and higher in safety.

Description

Technical Field

[0001] The utility model relates to the technical field of generator set top cover hoisting tools, in particular to a cable-type top cover hoisting device. Background Art

[0002] During the overhaul of the generator set of a hydropower station, the top cover of the unit needs to be lifted out so as to perform overhaul operations on the unit components. At present, four slings are used to lift the top cover. When the slings are tied to the top cover, wooden strips need to be placed at the connection between the slings and the top cover, and ensure that the wooden strips do not slide during the lifting process. In order to ensure that the top cover is level, the length of the slings needs to be constantly corrected so that the top cover can be smoothly detached. Therefore, the protection and adjustment operations of the rigging during the lifting process are relatively complicated, the lifting reliability is poor, and there are certain safety risks. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a cable-type top cover hanger. In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0004] A cable-type top cover hanger comprises a main beam, a plurality of power devices, a plurality of fixed pulleys, a movable pulley and a hanging beam, wherein the main beam is used to carry the power devices and fixed pulleys which are evenly distributed and combined in a set, the power device comprises a servo motor with a brake, a drum and a steel wire rope, the servo motor is fixedly mounted on the main beam, a drum is fixedly connected to the rotating shaft of the servo motor, the steel wire rope is sequentially sleeved on the drum, the fixed pulley and the movable pulley, the movable pulley is fixedly mounted on the top end of the hanging beam, a connecting hole is opened at the bottom end of the hanging beam and is fixedly connected to the top cover by bolts.

[0005] Furthermore, the fixed pulley and the movable pulley are provided with a plurality of pulley discs.

[0006] Furthermore, the number of the power units is not less than three.

[0007] Furthermore, a tension sensor is fixedly connected to the end of the steel wire rope to detect the load-bearing range of a single steel wire rope.

[0008] Furthermore, a plurality of evenly distributed support frames are fixedly connected to the bottom surface of the main beam.

[0009] Compared with the prior art, the utility model has the following beneficial effects:

[0010] The servo motor with a brake drives the drum to rotate to pull the wire rope to adjust the distance between the movable pulleys, so that the length of the top cover suspended in all directions on the main beam is consistent, making the top cover lifting process smoother. The hanging beam and the top cover are fixedly connected with bolts, which makes the operation simpler. The entire top cover lifting process is relatively convenient, reliable and safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0012] Figure 1 This is a schematic diagram of the main structure of an embodiment of the utility model;

[0013] Figure 2 It is a schematic diagram of the top view of the structure of an embodiment of the utility model.

[0014] In the above drawings: main beam 1, servo motor 2, drum 3, wire rope 4, fixed pulley 5, movable pulley 6, hanging beam 7, tension sensor 8, support frame 9. DETAILED DESCRIPTION

[0015] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0016] like Figure 1~2 As shown, the embodiment of the utility model proposes a cable-type top cover hanger, including a main beam 1, a plurality of power devices, a plurality of fixed pulleys 5, a movable pulley 6 and a hanging beam 7, the main beam 1 is used to carry the power devices and fixed pulleys 5 that are evenly distributed and combined in a set, the power device includes a servo motor 2 with a brake, a drum 3 and a wire rope 4, the servo motor 2 is fixedly installed on the main beam 1, the rotating shaft of the servo motor 2 is fixedly connected with the drum 3, the wire rope 4 is sequentially sleeved on the drum 3, the fixed pulley 5 and the movable pulley 6, the movable pulley 6 is fixedly installed on the top end of the hanging beam 7, and the bottom end of the hanging beam 7 is provided with a connecting hole and fixedly connected to the top cover by bolts.

[0017] The working principle is to use bolts to fix each hanging beam 7 and the top cover, start the servo motor 2 with a brake to drive the wire rope 4 to be reeled in the flow tube to adjust the distance between the fixed pulley 5 and the movable pulley 6, thereby tightening each hanging beam 7 and keeping the top cover roughly horizontal, and tighten the wire rope 4 on each servo motor 2 through the brake before lifting. Compared with the adjustment of the sling, the use of the wire rope 4 to adjust the balance of the top cover is more convenient and simpler to operate. The entire top cover lifting process is relatively convenient to operate, with strong reliability and higher safety.

[0018] More specifically, Figure 1 , Figure 2As shown, the fixed pulley 5 and the movable pulley 6 are provided with a plurality of pulley plates. The hanging beam 7 is connected in the form of a pulley block to reduce the weight borne by the steel wire rope 4, so as to facilitate the lifting of larger articles.

[0019] More specifically, Figure 1 As shown, the number of the power devices is not less than three, preferably four, to save costs. The power devices can be three, four, six, etc., and the fixed pulleys 5 corresponding to the power devices are evenly distributed on the main beam 1 to average the weight of the top cover, making the top cover hoisting more stable and safe.

[0020] More specifically, Figure 2 As shown, a tension sensor 8 is fixedly connected to the end of the steel wire rope 4 to detect the load-bearing range of a single steel wire rope 4. The tension of each steel wire rope 4 is controlled according to the data of the tension sensor 8, so as to facilitate the adjustment of the tension of each steel wire rope 4 to make the hoisting of the top cover more stable.

[0021] More specifically, Figure 2 As shown, a plurality of evenly distributed support frames 9 are fixedly connected to the bottom surface of the main beam 1. When installing the hanging beam 7, the main beam 1 is placed on the top cover through the support frames 9, so that the hanging beam 7 is fixedly connected to the top cover.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A cable-type top cover hanger, characterized in that: It includes a main beam, several power devices, several fixed pulleys, a movable pulley and a hanging beam. The main beam is used to carry the power devices and fixed pulleys that are evenly distributed and combined in a set. The power device includes a servo motor with a brake, a drum and a steel wire rope. The servo motor is fixedly installed on the main beam. The rotating shaft of the servo motor is fixedly connected with a drum. The steel wire rope is sequentially sleeved on the drum, the fixed pulley and the movable pulley. The movable pulley is fixedly installed on the top end of the hanging beam. The bottom end of the hanging beam is provided with a connecting hole and is fixedly connected to the top cover by bolts.

2. A cable-type top cover hanger as claimed in claim 1, characterized in that: The fixed pulley and the movable pulley are provided with a plurality of pulley discs.

3. A cable-type top cover hanger as claimed in claim 1, characterized in that: The number of the power units is not less than three.

4. A cable-type top cover hanger as claimed in claim 1, characterized in that: A tension sensor is fixedly connected to the end of the steel wire rope to detect the load-bearing range of a single steel wire rope.

5. The cable-type top cover hanger according to claim 1, characterized in that: A plurality of evenly distributed support frames are fixedly connected to the bottom surface of the main beam.

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