Portal crane for overhauling spillway radial gate servomotor

Abstract

The utility model discloses a gantry crane for overhauling a spillway radial gate servomotor, which comprises a gantry, a steel wire winding mechanism and a hoisting mechanism, and the hoisting mechanism comprises a fixing piece, a connecting rod piece, a steel wire winding mechanism and a hoisting mechanism, the top of the hoisting piece is rotationally connected to the connecting rod piece in a sleeving mode, and a fixed shaft piece is transversely and rotationally installed at the bottom of the hoisting piece; the limiting mechanism comprises an annular limiting groove formed in the upper side of the hemispherical clamping part of the connecting rod piece, a limiting spiral spring is installed in the annular limiting groove, and the top of the limiting spiral spring is fixedly installed in the limiting hole of the hoisting piece; the hoisting iron chain is transversely arranged on the fixed shaft piece, and the two sides of the hoisting iron chain are downwards connected to the two sides of the spillway radial gate servomotor in an inverted V shape; and after the hoisting piece is clamped to the semispherical clamping part, an electromagnet of the adsorption fixing assembly is powered on to adsorb and fix the hoisting piece and the fixing shaft piece. According to the utility model, the convenience of hoisting operation can be improved, and potential safety hazards are reduced.

Description

Technical Field

[0001] The utility model relates to a gantry crane, in particular to a gantry crane for repairing a spillway arc gate servomotor. Background Art

[0002] The relay hydraulic gate hoist is a new type of machine designed to solve the problem of opening and closing the arc gate with a particularly large height on the spillway of a hydropower station. The basic principle of this type of machine is to use two sets of short-stroke hydraulic cylinders to hold the two rows of hanging shafts on the arc gate panel to open and close the gate. The spillway arc gate relay is one of the most important components of the relay hydraulic gate hoist equipment. During its use, it needs to be regularly inspected and maintained. Due to the extremely heavy weight of the spillway arc gate relay, the corresponding gantry crane needs to be used during its inspection and maintenance to lift it to the corresponding position for inspection and maintenance.

[0003] A big problem in the process of hoisting the spillway arc gate relay with the existing gantry crane for maintenance is that the hoisting mechanism adopted by the existing gantry crane is mostly conventional hooks, which cannot adaptively form angle adjustment in the process of hoisting the spillway arc gate relay. Therefore, it is necessary to find the hoisting force balance point as much as possible through manual adjustment before hoisting, which is very troublesome; in addition, if the hoisting balance point of the workpiece is not accurate, it will easily lead to problems such as shaking of the workpiece during the lifting process, resulting in a large safety hazard in the maintenance hoisting of the spillway arc gate relay.

[0004] Therefore, the research purpose of the utility model is to design a gantry crane for the maintenance of spillway arc gate relays that can adaptively adjust the angle during the hoisting process of the spillway arc gate relay, so as to effectively and automatically find the hoisting balance point accurately, so as to improve the convenience of hoisting operations and reduce safety hazards. Summary of the invention

[0005] In view of the technical problems existing in the above-mentioned prior art, the utility model provides a gantry crane for repairing a spillway arc gate relay, which can effectively solve the technical problems existing in the above-mentioned prior art.

[0006] The technical solution of the utility model is:

[0007] A gantry crane for maintenance of a spillway arc gate relay comprises a gantry and a wire winding mechanism arranged on the gantry. The gantry crane also comprises a hoisting mechanism, and the hoisting mechanism comprises:

[0008] A fixing member, wherein the upper portion of the fixing member is fixedly connected to a pulley connected to the wire rope of the wire winding mechanism, and the lower portion of the fixing member is fixedly connected to a connecting rod member with a hemispherical clamping portion at the bottom;

[0009] The hanging piece is arranged in an inverted U shape, a positioning hole penetrating and sleeved on the connecting rod is arranged in the middle of the top of the hanging piece, the top of the hanging piece can be rotatably sleeved on the connecting rod on the upper side of the hemispherical clamping part through the cooperation of the positioning hole and the connecting rod, and a corresponding fixed shaft is rotatably installed between the bottoms of the hanging piece;

[0010] The limiting mechanism comprises an annular limiting groove arranged on the upper side of the hemispherical clamping portion of the connecting rod, a corresponding limiting coil spring is fixedly installed in the annular limiting groove, and the top of the limiting coil spring abuts against the inner side surface of the hanging member;

[0011] A hoisting iron chain is transversely arranged on the fixed shaft, and two sides of the hoisting iron chain are arranged downward in an inverted V shape and connected to two sides of the corresponding spillway arc gate relay;

[0012] The adsorption and fixing component includes an electromagnet arranged on the hemispherical clamping part and the hanging part. After the limiting coil spring is compressed until the hanging part is clamped to the hemispherical clamping part, the electromagnet is energized to adsorb and fix the hanging part and the fixed shaft.

[0013] The top of the limiting spiral spring is fixedly sleeved with a corresponding guide sleeve, and the guide sleeve is made of engineering plastics.

[0014] Corresponding socket holes are respectively arranged on both sides of the bottom of the hanging part, and both sides of the fixed shaft part can be rotatably inserted into the socket holes of the hanging part, and the two ends of the fixed shaft part are respectively fixed with stoppers with a diameter larger than the socket holes.

[0015] The stopper is fixedly mounted to the end of the fixed shaft by welding or threaded connection.

[0016] The inner end surfaces of the shifting members are respectively fixedly connected with plane bearings whose inner ends abut against the hanging members.

[0017] The fixing piece is arranged in a columnar shape, and the hemispherical clamping portion is integrally formed and arranged at the bottom of the connecting rod.

[0018] The upper end of the connecting rod is fixedly mounted on the fixing member by means of a threaded connection, and the connecting rod and the fixing member are welded into a whole by corresponding welds.

[0019] 1) The utility model fixes and installs the connecting rod at the lower part of the fixing part, and a hemispherical clamping part is provided at the bottom of the connecting rod, and the hanging part is installed on the connecting rod by a rotatable sleeve method; the most important thing is that the hemispherical clamping part and the hanging part are pre-connected by a limiting spiral spring of a limiting mechanism.

[0020] During the hoisting process, the hoisting chain is horizontally arranged on the fixed shaft of the hoisting part. As the wire rope of the wire winding mechanism is tightened and the hoisting mechanism moves upward, the two sides of the hoisting chain are connected downward to the two sides of the spillway arc gate relay in an inverted V shape. During this process, the hanging position of the hoisting chain can be adjusted adaptively by rotating the fixed shaft. As the hoisting mechanism moves upward, the limiting spiral spring of the limiting mechanism will be gradually compressed. During this process, the hoisting part is subjected to force and forms an adaptive rotation, thereby adaptively adjusting the relative angle and relative position of the hoisting part, the fixed shaft and the hoisting chain. In this way, it is possible to effectively form an adaptive angle adjustment during the hoisting process of the spillway arc gate relay, so as to automatically and accurately find the hoisting balance point, thereby effectively improving the convenience of the hoisting operation and reducing safety hazards.

[0021] 2) The utility model is also provided with an adsorption and fixing component. After the limiting coil spring is compressed to the point where the hanging part is clamped into the hemispherical clamping portion, the electromagnet of the adsorption and fixing component is energized to adsorb and fix the hanging part and the fixed shaft, thereby effectively ensuring the position stability of the hanging part and the fixed shaft after the angle adjustment is completed, thereby ensuring the practical effect of the utility model.

[0022] 3) The top of the limit coil spring of the present invention is fixedly sleeved with a corresponding guide sleeve, which is made of engineering plastic. In this way, the wear of the hanging parts during the adaptive angle adjustment process can be significantly reduced, thereby reducing the mechanical damage of the parts, so as to further ensure the practical effect of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the utility model.

[0024] Figure 2 It is a structural diagram of the lifting mechanism.

[0025] Figure 3 This is a cross-sectional view of the lifting mechanism.

[0026] Figure 4 for Figure 3 A partial enlarged view of DETAILED DESCRIPTION

[0027] In order to facilitate understanding by those skilled in the art, the structure of the present invention is further described in detail with reference to the accompanying drawings:

[0028] refer to Figure 1-4 A gantry crane for maintenance of a spillway arc gate relay comprises a gantry 1 and a wire winding mechanism 2 arranged on the gantry 1. The gantry crane also comprises a hoisting mechanism 3, and the hoisting mechanism 3 comprises:

[0029] A fixing member 301, wherein the upper portion of the fixing member 301 is fixedly connected to a pulley 4 connected to the steel wire rope 201 of the steel wire winding mechanism 2, and the lower portion of the fixing member 301 is fixedly connected to a connecting rod 6 having a hemispherical clamping portion 5 at the bottom;

[0030] The hanging member 302 is arranged in an inverted U shape, and a positioning hole penetrating and sleeved on the connecting rod 6 is arranged in the middle of the top of the hanging member 302. The top of the hanging member 302 can be rotatably sleeved on the connecting rod 6 on the upper side of the hemispherical clamping portion 5 through the cooperation of the positioning hole and the connecting rod 6. A corresponding fixed shaft 7 is rotatably installed between the bottoms of the hanging member 302 in a transverse direction;

[0031] The limiting mechanism 303 comprises an annular limiting groove 3031 provided on the upper side of the hemispherical clamping portion 5 of the connecting rod 6, a corresponding limiting coil spring 3032 is fixedly installed in the annular limiting groove 3031, and the top of the limiting coil spring 3032 abuts against the inner side surface of the hanging member 302;

[0032] A hoisting chain 304 is transversely arranged on the fixed shaft 7, and both sides of the hoisting chain 304 are arranged downward in an inverted V shape and connected to both sides of the corresponding spillway arc gate relay 8;

[0033] The adsorption and fixing component 305 includes an electromagnet arranged on the hemispherical clamping part 5 and the hanging part 302. After the limiting coil spring 3032 is compressed until the hanging part 302 is clamped to the hemispherical clamping part 5, the electromagnet is energized to adsorb and fix the hanging part 302 and the fixed shaft 7.

[0034] During the hoisting process, the hoisting chain 304 is horizontally arranged on the fixed shaft 7 of the hoisting member 302. As the wire rope 201 of the wire winding mechanism 2 is tightened and the hoisting mechanism 3 moves upward, the two sides of the hoisting chain 304 are connected downward to the two sides of the spillway arc gate relay 8 in an inverted V shape. In this process, the hanging position of the hoisting chain 304 can be adjusted by the rotation of the fixed shaft 7. As the hoisting mechanism 3 moves upward, the limiting spiral spring 3032 of the limiting mechanism 303 will be gradually compressed. In this process, the hoisting member 302 is subjected to force to form an adaptive rotation, thereby adaptively adjusting the relative angle and relative position of the hoisting member 302, the fixed shaft 7 and the hoisting chain 7. In this way, it is effective to form an adaptive angle adjustment during the hoisting process of the spillway arc gate relay 8, so as to effectively and automatically find the hoisting balance point accurately, thereby effectively improving the convenience of the hoisting operation and reducing safety hazards.

[0035] After the limiting coil spring 3032 is compressed to the point where the hanging part 302 is clamped into the hemispherical clamping part 5, the electromagnet of the adsorption and fixing assembly 305 is energized to adsorb and fix the hanging part 302 and the fixed shaft part 7, thereby effectively ensuring the positional stability of the hanging part 302 and the fixed shaft part 7 after the angle adjustment is completed, thereby ensuring the practical effect of the utility model.

[0036] The top of the limiting spiral spring 3032 is fixedly sleeved with a corresponding guide sleeve 9, which is made of engineering plastic. In this way, the wear of the hanging part 302 during the adaptive angle adjustment process can be significantly reduced, thereby reducing the mechanical damage of the parts, so as to further ensure the practical effect of the utility model.

[0037] The bottom of the hanging member 302 is provided with corresponding socket holes on both sides, and the two sides of the fixed shaft member 7 can be rotatably inserted into the socket holes of the hanging member 302, and the two ends of the fixed shaft member 7 are respectively fixed with stoppers 10 having a diameter larger than the socket holes. The stoppers 10 are provided to ensure the stability of the installation of the fixed shaft member 7.

[0038] The stopper 10 is fixedly mounted to the end of the fixed shaft 7 by threaded connection. The inner end surfaces of the stopper 10 are respectively fixedly connected with plane bearings 11 whose inner ends abut against the hanging member 302. The fixing member 301 is arranged in a columnar shape, and the hemispherical clamping portion 5 is integrally formed and arranged at the bottom of the connecting rod 6.

[0039] The upper end of the connecting rod 6 is fixedly mounted on the fixing member 301 by means of a threaded connection, and the connecting rod 6 and the fixing member 301 are welded into a whole by corresponding welds.

[0040] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A gantry crane for overhauling a spillway arc gate relay, comprising a gantry (1), and a wire winding mechanism (2) arranged on the gantry (1), characterized in that: The gantry crane further comprises a hoisting mechanism (3), wherein the hoisting mechanism (3) comprises: A fixing member (301), the upper portion of which is fixedly connected to a pulley (4) on a steel wire rope (201) connected to the steel wire winding mechanism (2), and the lower portion of which is fixedly connected to a connecting rod (6) having a hemispherical clamping portion (5) at the bottom; The hanging member (302) is arranged in an inverted U shape, and a positioning hole is arranged in the middle of the top of the hanging member (302) and penetrates and is sleeved on the connecting rod (6). The top of the hanging member (302) is rotatably sleeved on the connecting rod (6) on the upper side of the hemispherical clamping portion (5) through the cooperation of the positioning hole and the connecting rod (6). A corresponding fixed shaft (7) is rotatably installed between the bottoms of the hanging member (302) in a transverse direction; The limiting mechanism (303) comprises an annular limiting groove (3031) arranged on the upper side of the hemispherical clamping portion (5) of the connecting rod (6), a corresponding limiting coil spring (3032) being fixedly installed in the annular limiting groove (3031), and the top of the limiting coil spring (3032) abuts against the inner side surface of the hanging member (302); A hoisting iron chain (304) is transversely arranged on the fixed shaft (7), and two sides of the hoisting iron chain (304) are arranged downward in an inverted V shape and connected to two sides of a corresponding spillway arc gate relay (8); The adsorption and fixing component (305) comprises an electromagnet arranged on the hemispherical clamping portion (5) and the hanging member (302); after the limiting coil spring (3032) is compressed until the hanging member (302) is clamped to the hemispherical clamping portion (5), the electromagnet is energized to form adsorption and fixing for the hanging member (302) and the fixed shaft member (7).

2. A gantry crane for maintenance of spillway arc gate relay according to claim 1, characterized in that: A corresponding guide sleeve (9) is fixedly sleeved on the top of the limiting coil spring (3032), and the guide sleeve (9) is made of engineering plastic.

3. A gantry crane for maintenance of spillway arc gate relay according to claim 1, characterized in that: Corresponding socket holes are respectively arranged on both sides of the bottom of the hanging member (302); both sides of the fixed shaft member (7) can be rotatably inserted into the socket holes of the hanging member (302); and both ends of the fixed shaft member (7) are respectively fixedly connected with stoppers (10) having a diameter larger than that of the socket holes.

4. A gantry crane for maintenance of spillway arc gate relay according to claim 3, characterized in that: The stopper (10) is fixedly mounted to the end of the fixed shaft (7) by welding or threaded connection.

5. A gantry crane for maintenance of spillway arc gate relay according to claim 4, characterized in that: The inner end surfaces of the stoppers (10) are respectively fixedly connected with plane bearings (11) whose inner ends abut against the hanging parts (302).

6. A gantry crane for maintenance of spillway arc gate relay according to claim 1, characterized in that: The fixing member (301) is arranged in a columnar shape, and the hemispherical clamping portion (5) is integrally formed and arranged at the bottom of the connecting rod (6).

7. A gantry crane for maintenance of spillway arc gate relay according to claim 1, characterized in that: The upper end of the connecting rod (6) is fixedly mounted on the fixing member (301) by means of a threaded connection, and the connecting rod (6) and the fixing member (301) are welded into a whole by corresponding welds.

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