Lifting mechanism for installation of steam turbine generator

Abstract

The utility model relates to the technical field of machinery, and discloses a lifting mechanism for installation of a steam turbine generator, which comprises an installation plate, a conveying frame is arranged on the right side of the top of the installation plate, a plurality of conveying rollers are rotatably connected in the conveying frame, and a supporting plate is arranged on the tops of the conveying rollers. A vertical lifting frame is fixedly connected to the left end of the top of the mounting plate, rotating rods are rotationally connected to the upper ends and the lower ends of the front side and the rear side in the vertical lifting frame, rotating gears are fixedly connected to the left sides and the right sides of the outer walls of the multiple rotating rods, and chains are arranged on the outer walls of the multiple rotating gears. According to the utility model, horizontal movement of the steam turbine generator is realized through rotation of the conveying rollers in the conveying frame, and then the steam turbine generator is stably lifted in the vertical direction through the rotating rod, the rotating gear, the chain and the L-shaped supporting steel plate, so that the mounting efficiency and the safety are improved, and the labor intensity and the mounting difficulty are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical technical field especially relates to a lifting mechanism for steam turbine generator installation. BACKGROUND

[0002] Steam turbine generator as the equipment of electric power production field is the device of other forms of energy conversion electric energy, is widely used in thermal power generation, nuclear power generation etc.

[0003] However, in the traditional installation mode, the steam turbine generator is lifted by pulley block through manual, in this process, since steam turbine generator is heavy, the operator needs to consume great physical strength when manual handling, not only easy to cause physical fatigue, and under long time high intensity work, will cause operation error due to fatigue, thereby the safety of equipment and personnel itself is threatened, manual operation is difficult to guarantee the stability and precision of lifting process, easy to appear generator shaking and deviation, thereby influence installation progress and quality, lead to unable to meet the modern industry for efficient, safe steam turbine generator installation demand. UTILITARY MODEL CONTENTS

[0004] In order to make up for the above insufficient, the utility model provides a lifting mechanism for steam turbine generator installation, aims at improving the prior art through pulley block steam turbine generator is lifted, under long time high intensity work, will cause operation error due to fatigue, thereby the safety of equipment and personnel itself is threatened.

[0005] In order to realize the above purpose, the utility model adopts the following technical scheme: a lifting mechanism for steam turbine generator installation, including the installation board, the top right side of installation board is provided with conveying frame, the inside rotation is connected with a plurality of conveying rollers of conveying frame, the top of a plurality of conveying rollers is provided with the supporting plate, the top left end of installation board is fixedly connected with vertical lifting frame, the inside front and back side upper and lower ends of vertical lifting frame are rotationally connected with rotating rods, the outer wall left and right sides of a plurality of rotating rods are fixedly connected with rotating gears, the outer wall of a plurality of rotating gears is provided with chain, a plurality of L-shaped support steel plates are fixedly connected on the outer wall of a plurality of chains at equal intervals, the rear bottom of vertical lifting frame is provided with bidirectional drive mechanism.

[0006] As a further description of the above technical scheme:

[0007] The bidirectional driving mechanism comprises a driving motor, a transmission rod is rotationally connected to the inner left bottom end of the vertical lifting frame, a worm one is fixedly connected to the rear outer wall of the transmission rod, a worm two is fixedly connected to the front outer wall of the transmission rod, the screw directions of the worm one and the worm two are opposite, a worm wheel is fixed to the left end of each of the two rotating rods at the bottom, a conical gear one is fixedly connected to the rear end of the transmission rod and penetrates through the rear side of the vertical lifting frame, a conical gear two is fixedly connected to the output end of the driving motor, and the conical gear one and the conical gear two are meshed with each other.

[0008] As a further description of the above technical solution:

[0009] The front right end of the conveying frame is fixedly connected with a control console, and the control console is electrically connected with the driving motor.

[0010] As a further description of the above technical solution:

[0011] The bottom right end of the conveying frame is provided with a plurality of storage drawers, and the plurality of storage drawers are arranged in an up-down manner.

[0012] As a further description of the above technical solution:

[0013] The bottom of the conveying frame is provided with a plurality of inclined struts, and the bottom ends of the plurality of inclined struts are fixedly connected with the top of the mounting plate.

[0014] As a further description of the above technical solution:

[0015] The top wall of each of the plurality of L-shaped support steel plates is fixedly connected with a plurality of anti-skid strips, and the outer walls of the plurality of anti-skid strips are designed in an arc shape.

[0016] As a further description of the above technical solution:

[0017] The bottom of the mounting plate is fixedly connected with anti-skid pads at four corners, and the bottom walls of the plurality of anti-skid pads are designed in an anti-skid manner.

[0018] As a further description of the above technical solution:

[0019] The left and right ends of each of the plurality of L-shaped support steel plates are designed in an inclination angle, and the inclination angles are designed to expand outward.

[0020] The utility model has the advantages of:

[0021] 1. In this utility model, by placing the generator on the pallet, the horizontal movement is achieved by the rotation of the conveyor rollers in the conveyor frame, and then the rotating rod, rotating gear, chain and L-shaped support steel plate in the vertical lifting frame are driven by the bidirectional drive mechanism to stably lift and accurately position the steam turbine generator in the horizontal and vertical directions, which improves the installation efficiency and safety, and reduces the intensity of manual labor and the difficulty of installation.

[0022] 2. In this utility model, the drive motor drives the second bevel gear to rotate, and through meshing transmission, the transmission rod and the first and second worms on it rotate, driving the worm wheel to drive the rotating rod. With the help of the rotating gear and chain linkage, the L-shaped support steel plate achieves vertical movement, realizing stable power transmission for vertical lifting of the steam turbine generator, ensuring smooth and safe lifting, improving installation efficiency and quality, and meeting installation requirements. Attached Figure Description

[0023] Figure 1 This is a perspective view of a lifting mechanism for installing a steam turbine generator according to the present invention.

[0024] Figure 2 This is a front view of a lifting mechanism for installing a steam turbine generator according to the present invention.

[0025] Figure 3 This is a partial structural diagram of a lifting mechanism for installing a steam turbine generator according to the present invention;

[0026] Figure 4 This is a schematic diagram of the bidirectional drive mechanism in a lifting mechanism for installing a steam turbine generator according to the present invention.

[0027] Figure 5 This is a schematic diagram of the L-shaped support steel plate in a turbine generator mounting support mechanism proposed in this utility model.

[0028] Legend:

[0029] 1. Mounting plate; 2. Conveyor frame; 3. Conveyor rollers; 4. Pallet; 5. Vertical lifting frame; 6. Rotating rod; 7. Rotating gear; 8. Chain; 9. L-shaped support steel plate; 10. Bidirectional drive mechanism; 1001. Drive motor; 1002. Transmission rod; 1003. Worm gear one; 1004. Worm gear two; 1005. Worm wheel; 1006. Bevel gear one; 1007. Bevel gear two; 11. Control console; 12. Storage drawer; 13. Diagonal brace; 14. Anti-slip strip; 15. Anti-slip mat. Detailed Implementation

[0030] With reference to the accompanying drawings, the technical solutions in the embodiments of the present application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work are within the scope of the present application.

[0031] With reference to Figure 1 , Figure 2 and Figure 3 , the present application provides an embodiment: a lifting mechanism for installing a steam turbine generator, comprising a mounting plate 1, a conveying frame 2 is arranged at the top right side of the mounting plate 1, for carrying and installing conveying rollers 3, which can provide a stable support foundation for subsequent components, a plurality of conveying rollers 3 are rotatably connected inside the conveying frame 2, so that the supporting plate 4 placed thereon can be flexibly moved in the horizontal direction, facilitating preliminary position adjustment of the steam turbine generator, a supporting plate 4 is arranged at the top of the plurality of conveying rollers 3, for placing the steam turbine generator, effectively dispersing the weight of the generator, and ensuring its stability during horizontal movement, a vertical lifting frame 5 is fixedly connected to the top left end of the mounting plate 1, which plays a role in fixing and supporting the internal rotating components, and provides a structural frame for vertical lifting action, a rotating rod 6 is rotatably connected to the inside of the front and rear sides of the vertical lifting frame 5, a rotating gear 7 is fixedly connected to the left and right sides of the outer wall of the plurality of rotating rods 6, which can realize stable transmission and conversion of power through cooperation with the chain 8, and ensure synchronous operation of the entire vertical lifting system, the outer wall of the plurality of rotating gears 7 is provided with a chain 8, which drives the L-shaped supporting steel plate 9 to move vertically under the drive of the rotating gear 7, realizing vertical lifting of the steam turbine generator, a plurality of L-shaped supporting steel plates 9 are fixedly connected to the outer wall of the plurality of chains 8 at equal intervals, directly contacting and lifting the supporting plate 4 and the steam turbine generator, providing reliable vertical support for the generator, and ensuring the stability during lifting, a bidirectional driving mechanism 10 is arranged at the bottom of the rear side of the vertical lifting frame 5, which provides power for the rotating rod 6, drives the entire vertical lifting system to work, and makes the lifting operation of the steam turbine generator more efficient and convenient.

[0032] With reference to Figure 3 and Figure 4, the bidirectional driving mechanism 10 comprises a driving motor 1001, the inner left bottom end of the vertical lifting frame 5 is rotationally connected with a transmission rod 1002, which can transmit the power generated by the driving motor 1001 to subsequent related components, ensure the power transmission of the whole vertical lifting system, the outer wall rear side of the transmission rod 1002 is fixedly connected with a worm one 1003, the worm one 1003 cooperates with a worm wheel 1005, through the worm transmission characteristics, the rotary motion is converted into a suitable power output form, to drive the rotation of the rotating rod 6, so as to drive the vertical lifting mechanism to work, the outer wall front side of the transmission rod 1002 is fixedly connected with a worm two 1004, the worm two 1004 and the worm one 1003 jointly act, at the same time, because the thread directions are opposite, the two worm wheels 1005 meshed with them can produce opposite rotation in the transmission process, further ensure the stable lifting of the chain 8 and the L-shaped support steel plate 9, improve the stability of the lifting process, the thread directions of the worm one 1003 and the worm two 1004 are opposite, so that the bottom two rotating rods 6 can realize synchronous but opposite rotation, effectively avoid the equipment jamming or failure caused by uneven single-sided stress, ensure the smooth operation of the vertical lifting action, the left ends of the bottom two rotating rods 6 are fixedly connected with the worm wheels 1005, the worm wheels 1005, the worm one 1003 and the worm two 1004 constitute transmission parts, by using the self-locking characteristics of the worm wheels 1005, the worm one 1003 and the worm two 1004, the transmission efficiency is improved, and the rotating rod 6 can keep stable state when stopping rotating, prevent the steam turbine generator from accidentally falling, the rear end of the transmission rod 1002 penetrates through the rear side of the vertical lifting frame 5 and is fixedly connected with a bevel gear one 1006, the bevel gear one 1006 serves as a direction changing device in the transmission link, can change the transmission direction of the power, so that it is meshed and driven with a bevel gear two 1007 at the output end of the driving motor 1001, thereby effectively transmitting the rotary power of the motor to the transmission rod 1002, the output end of the driving motor 1001 is fixedly connected with the bevel gear two 1007, the bevel gear two 1007 is meshed with the bevel gear one 1006, through the gear meshing mode, the high-speed rotary motion of the driving motor 1001 is transmitted to the transmission rod 1002, a stable and reliable power source is provided for the whole vertical lifting system, and it is ensured that the steam turbine generator can be efficiently and safely lifted to the specified position.

[0033] With reference to Figure 1 , Figure 2 and Figure 5The right end of the front side of the conveying frame 2 is fixedly connected with a control console 11, which serves as the control center of the whole mechanism and is convenient for the operator to centrally control the operation of the driving motor 1001, so as to accurately control the lifting process of the steam turbine generator and improve the convenience and accuracy of operation. The control console 11 is electrically connected with the driving motor 1001, so as to realize remote control of the driving motor 1001. The operator can flexibly adjust the operation state of the motor according to actual needs, so as to ensure stable operation of the lifting mechanism. The bottom right end of the conveying frame 2 is provided with a plurality of storage drawers 12 arranged in an up-down manner, which provides a convenient space for storing small parts and tools during installation of the steam turbine generator, helps to improve work efficiency, avoids loss of parts, and makes the installation site more tidy and orderly. The bottom of the conveying frame 2 is provided with a plurality of inclined braces 13, the bottom ends of which are fixedly connected with the top of the mounting plate 1. The inclined braces 13 effectively enhance the structural stability of the conveying frame 2, can bear greater weight, and ensure the stability and reliability of the whole device during lifting of the steam turbine generator. The top wall of the plurality of L-shaped support steel plates 9 is fixedly connected with a plurality of anti-skid strips 14, the outer walls of which are designed in an arc shape. The arc-shaped anti-skid strips 14 increase the friction with the bottom of the steam turbine generator, prevent the generator from slipping during lifting, and further ensure the safety of the lifting operation. The bottom of the mounting plate 1 is fixedly connected with anti-skid pads 15 at the four corners. The bottom walls of the plurality of anti-skid pads 15 are designed to be anti-skid. The anti-skid pads 15 can make the whole device more stable when placed on the work plane, avoid accidents caused by sliding of the device, and provide stable foundation support for installation of the steam turbine generator. The left and right ends of the plurality of L-shaped support steel plates 9 are designed in an inclination angle, which expands outward. The inclination angle design makes the L-shaped support steel plates 9 better adapt to the shape of the generator during lifting, facilitates accurate positioning and stable support, and also facilitates installation operation of the operator, improving the convenience and efficiency of work.

[0034] Working principle: when the steam turbine generator needs to be lifted, first place the generator on the supporting plate 4, the bottom of the supporting plate 4 is in contact with the plurality of conveying rollers 3, the conveying rollers 3 can rotate freely in the conveying frame 2, so that the generator placed on the supporting plate 4 can be moved and adjusted in the horizontal direction more easily, and the subsequent vertical lifting is convenient, the preliminary positioning and support of the generator in the horizontal dimension is realized, then the vertical lifting frame 5 located at the top left end of the mounting plate 1 is used as the vertical moving frame, the rotating rods 6 rotatingly connected on the front and back sides and upper and lower ends in the vertical lifting frame 5 are driven to rotate by the bidirectional driving mechanism 10, since the outer walls of the plurality of rotating rods 6 are fixedly connected with the rotating gears 7 on the left and right sides, and the plurality of rotating gears 7 are connected by the chain 8, when the rotating rod 6 rotates, the rotating gear 7 rotates synchronously and realizes synchronous transmission through the chain 8, ensuring the coordinated operation of the whole vertical lifting system, with the rotation of the chain 8, the plurality of L-shaped supporting steel plates 9 fixedly distributed on the outer wall of the chain 8 start to move upward, the L-shaped supporting steel plates 9 will gradually contact the steam turbine generator placed on the supporting plate 4 and support the bottom of the generator, since the L-shaped supporting steel plates 9 are fixedly distributed on the chain 8, and the chain 8 can stably realize the circular motion in the vertical direction under the drive of the rotating gear 7 and the rotating rod 6, therefore, the adjacent two L-shaped supporting steel plates 9 can stably and uniformly lift the supporting plate 4 and the generator upward, not only can realize the accurate lifting of the steam turbine generator in the vertical direction, but also can make the L-shaped supporting steel plates 9 provide stable and reliable supporting force, ensure the safety and stability of the generator during the lifting process, ensure that the whole installation process can be carried out efficiently and safely, realize the lifting demand of the steam turbine generator during the installation process, and improve the convenience and reliability of the installation work;

[0035] And, when the vertical lifting action needs to be started, the driving motor 1001 is started, the output end of which is fixedly connected with the conical gear two 1007, and the conical gear two 1007 starts to rotate, since the conical gear one 1006 and the conical gear two 1007 are in mesh with each other, so the conical gear one 1006 will rotate with the conical gear two 1007, and further drive the transmission rod 1002 fixedly connected therewith to rotate, and when the transmission rod 1002 rotates, the worm one 1003 fixedly connected to the outer wall rear side and the worm two 1004 fixedly connected to the outer wall front side rotate synchronously, importantly, the screw thread directions of the worm one 1003 and the worm two 1004 are opposite, and the left ends of the two rotating rods 6 at the bottom are both fixedly provided with the worm gears 1005, and the worm gears 1005 are matched with the worm one 1003 and the worm two 1004, according to the transmission principle of the worm gears 1005, the worm one 1003 and the worm two 1004, when the worm one 1003 and the worm two 1004 rotate, the two worm gears 1005 will be driven to rotate in opposite directions, since the two worm gears 1005 are respectively fixedly connected to the two rotating rods 6 at the bottom, so the two rotating rods 6 will also rotate in opposite directions, as mentioned above, the rotating gears 7 are fixedly connected to the outer wall left and right sides of the rotating rod 6, and the plurality of rotating gears 7 are connected through the chain 8, when the two rotating rods 6 at the bottom rotate in opposite directions, through the transmission of the rotating gears 7 and the chain 8, the whole chain 8 system can be ensured to stably and synchronously operate, so that the plurality of L-shaped supporting steel plates 9 fixed to the outer wall of the chain 8 realize stable rising or falling in the vertical direction, so that the power transmission of the bidirectional driving mechanism 10 in the vertical direction is more stable and uniform, and the problems of uneven stress and jamming caused by single-side driving can be effectively avoided, thereby ensuring the stability and safety of the steam turbine generator in the lifting process, greatly improving the efficiency and quality of the installation work, and meeting the requirements of the lifting mechanism for efficient and stable operation in the steam turbine generator installation process.

[0036] Finally, it should be noted that: the above only for preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can be modified to the technical solutions recorded in the foregoing embodiments, or equivalent replacement of some technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A lifting mechanism for installation of a turbo-generator, comprising a mounting plate (1), characterized in that: The top right side of the mounting plate (1) is provided with a conveying frame (2), a plurality of conveying rollers (3) are rotatably connected in the conveying frame (2), a plurality of the top of the conveying roller (3) is provided with a supporting plate (4), the top left end of the mounting plate (1) is fixedly connected with a vertical lifting frame (5), the inside of the vertical lifting frame (5) is rotatably connected with a rotating rod (6) on the front and back sides, a plurality of the outer wall of the rotating rod (6) is fixedly connected with a rotating gear (7) on the left and right sides, a plurality of the outer wall of the rotating gear (7) is provided with a chain (8), a plurality of the outer wall of the chain (8) is fixedly connected with a plurality of L-shaped supporting steel plates (9) at equal intervals, and the rear bottom of the vertical lifting frame (5) is provided with a bidirectional driving mechanism (10).

2. A lifting mechanism for mounting a turbogenerator according to claim 1, characterized in that: The bidirectional driving mechanism (10) comprises a driving motor (1001), the inside left bottom end of the vertical lifting frame (5) is rotatably connected with a transmission rod (1002), the outer wall rear side of the transmission rod (1002) is fixedly connected with a worm one (1003), the outer wall front side of the transmission rod (1002) is fixedly connected with a worm two (1004), the screw directions of the worm one (1003) and the worm two (1004) are opposite, the left end of the bottom two rotating rods (6) is fixedly connected with a worm wheel (1005), the rear end of the transmission rod (1002) penetrates through the rear side of the vertical lifting frame (5) and is fixedly connected with a bevel gear one (1006), the output end of the driving motor (1001) is fixedly connected with a bevel gear two (1007), and the bevel gear one (1006) and the bevel gear two (1007) are meshed with each other.

3. A lifting mechanism for mounting a turbogenerator according to claim 1, characterized in that: The front right end of the conveying frame (2) is fixedly connected with a control console (11), and the control console (11) is electrically connected with the driving motor (1001).

4. A lifting mechanism for mounting a turbogenerator according to claim 1, characterized in that: The bottom right end of the conveying frame (2) is provided with a plurality of storage drawers (12), and the plurality of storage drawers (12) are arranged in up-down arrangement.

5. A lifting mechanism for a turbogenerator installation according to claim 1, characterized in that: The bottom of the conveying frame (2) is provided with a plurality of inclined struts (13), and the bottom ends of the plurality of inclined struts (13) are fixedly connected with the top of the mounting plate (1).

6. A lifting mechanism for a turbogenerator installation according to claim 1, characterized in that: The top wall of the plurality of L-shaped supporting steel plates (9) is fixedly connected with a plurality of anti-skid strips (14), and the outer wall of the plurality of anti-skid strips (14) is designed in an arc shape.

7. A lifting mechanism for a turbogenerator installation according to claim 1, characterized in that: The bottom wall of the plurality of anti-skid pads (15) is designed in an anti-skid design.

8. A lifting mechanism for a turbogenerator installation according to claim 1, characterized in that: The left and right ends of the plurality of L-shaped supporting steel plates (9) are designed in an inclination, and the inclination is designed to expand outward. The bottom wall of the plurality of anti-skid pads (15) is designed in an anti-skid design.

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