Power plant hearth overhauling device

Abstract

The utility model relates to the technical field of hearth maintenance, and discloses a power plant hearth maintenance device which comprises a base station, a height adjusting mechanism is arranged on one side of the top of the base station, the height adjusting mechanism comprises a side plate fixedly connected to one side of the top of the base station, and a mounting groove is formed in the middle of the bottom of the side plate. Sliding grooves are symmetrically formed in the two sides of the side plate, a double-shaft motor is fixedly mounted at the position, located in the mounting groove, of the top of the side plate, worms are fixedly connected to the two output ends of the double-shaft motor, worm wheels are meshed with the outer walls of the ends, penetrating through the side plate and extending to the outside, of the two worms, and threaded rods are fixedly connected to the tops of the worm wheels; the height adjusting mechanism is arranged, so that when the device is used, a worker can conveniently conduct inspection, cleaning, welding and other operations at different heights in a hearth, operation is convenient and fast, and the maintenance efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of furnace maintenance, and more specifically to a furnace maintenance device for a power plant. Background Art

[0002] The furnace is a three-dimensional space surrounded by furnace walls for fuel combustion. The function of the furnace is to ensure that the fuel burns as much as possible and cool the flue gas temperature at the furnace outlet to a temperature allowed for safe operation of the convection heating surface. Furnaces are widely used in power generation in power plants. After the furnace has been used for a long time, staff are required to enter the furnace for maintenance to prevent accidents during operation.

[0003] When inspecting the furnace, scaffolding is currently built manually and then the workers stand on the scaffolding to inspect, which is time-consuming and labor-intensive, and also brings inconvenience to the inspection work. Secondly, the existing inspection platform is difficult to maintain stability during the work process and is prone to shaking, which affects the safety and work efficiency of the power plant furnace inspection. For this reason, we propose a power plant furnace inspection device to solve the above problems. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a furnace maintenance device for a power plant to solve the problems existing in the above-mentioned background technology.

[0005] The utility model provides the following technical scheme: a power plant furnace maintenance device, comprising a base, a height adjustment mechanism is provided on one side of the top of the base, the height adjustment mechanism comprises a side plate fixedly connected to one side of the top of the base, a mounting groove is provided in the middle of the bottom of the side plate, and sliding grooves are symmetrically provided on both sides of the side plate, and a double-axis motor is fixedly installed in the mounting groove on the top of the side plate, and both output ends of the double-axis motor are fixedly connected to a worm, and the outer wall of one end of the two worms extending through the side plates to the outside is meshed with a worm wheel, the top of the worm wheel is fixedly connected to a threaded rod, and the end of the threaded rod away from the worm wheel is threadedly connected to a sliding block, one side of the sliding block is fixedly connected to a support bar, the top of the support bar is fixedly connected to a maintenance platform plate, the top of the maintenance platform plate is fixedly connected to a surrounding plate, and shock-absorbing and buffering mechanisms are provided at four corners of the inner wall of the surrounding plate, a support plate is provided on the top of the shock-absorbing and buffering mechanism, and a stabilizing mechanism is symmetrically provided on both sides of the bottom of the base.

[0006] Preferably, mounting covers are symmetrically fixedly connected to both sides of the side panels, fixing blocks are symmetrically fixedly connected to the tops of both sides of the side panels, the tops of the threaded rods are connected to the bearings of the fixing blocks, and the sliders and the slide grooves form a sliding connection structure.

[0007] Preferably, the stabilizing mechanism comprises a threaded rotating rod threadedly connected to both sides of the top of the base, the threaded rotating rod passes through the base and extends to one end of the bottom and is provided with a bearing, and a counterweight is fixedly connected to the bottom of the bearing.

[0008] Preferably, two sides of the top of the counterweight block are symmetrically fixedly connected with limited telescopic rods, and the top of the limited telescopic rods is fixedly connected to the bottom of the base.

[0009] Preferably, the shock-absorbing and buffering mechanism includes a movable groove opened around the inner wall of the enclosure, the enclosure is fixedly connected to a guide rod at the top of the movable groove, the bottom of the guide rod is fixedly connected to the top of the inspection platform, the top of the guide rod is movably sleeved with a movable plate, the bottom of the movable plate is fixedly connected to a damper, the bottom of the damper is fixedly connected to the top of the inspection platform, the outer wall of the damper is sleeved with a spring, and the top of the movable plate is fixedly connected to the bottom of the support plate.

[0010] Preferably, the four corners of the bottom of the base are fixedly connected with self-locking universal wheels.

[0011] Technical effects and advantages of the utility model:

[0012] 1. The utility model is provided with a height adjustment mechanism. When the device is used, the double-axis motor is started, the double-axis motor drives the two worms to rotate, the engagement between the worm and the worm wheel drives the threaded rod to rotate clockwise (or counterclockwise), and the threaded rod drives the support bar to move upward (or downward), thereby driving the support plate to move upward (or downward) stably, which is convenient for the staff to perform inspection, cleaning, welding and other operations at different heights in the furnace. The operation is convenient and is conducive to improving the maintenance efficiency.

[0013] 2. The utility model is provided with a shock-absorbing and buffering mechanism. When the device is used, the cooperation between the spring and the damper can make the support plate move down along the guide rod to squeeze the spring when the maintenance platform is lowered, so as to shock-absorbing and buffer the downward impact force, which can further improve the stability of the workbench, reduce the impact force on the staff, facilitate the maintenance work of the power plant furnace, and avoid dangerous situations when the staff are performing maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the height adjustment mechanism structure of the utility model.

[0016] Figure 3 for Figure 2 A is an enlarged structural diagram of FIG.

[0017] Figure 4 It is a schematic diagram of the structure of the stabilizing mechanism of the utility model.

[0018] Figure 5 It is a schematic diagram of the structure of the shock absorbing and buffering mechanism of the utility model.

[0019] The accompanying drawings are marked as follows: 1. base; 2. height adjustment mechanism; 21. side panel; 22. slide groove; 23. dual-axis motor; 24. worm; 25. worm wheel; 26. threaded rod; 27. slider; 28. support bar; 29. ​​fixed block; 210. installation cover; 3. maintenance table; 4. enclosure; 5. stabilizing mechanism; 51. threaded rotating rod; 52. bearing; 53. limit telescopic rod; 54. counterweight; 6. self-locking universal wheel; 7. support plate; 8. shock-absorbing and buffering mechanism; 81. movable groove; 82. spring; 83. guide rod; 84. damper; 85. movable plate. DETAILED DESCRIPTION

[0020] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative. The furnace maintenance device of a power plant involved in the present invention is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0021] The utility model provides a furnace maintenance device for a power plant. Figure 1-5 As shown, it includes a base 1, a height adjustment mechanism 2 is arranged on one side of the top of the base 1, and the height adjustment mechanism 2 includes a side plate 21 fixedly connected to one side of the top of the base 1, a mounting groove is provided in the middle of the bottom of the side plate 21, and sliding grooves 22 are symmetrically provided on both sides of the side plate 21, and a double-axis motor 23 is fixedly installed in the mounting groove at the top of the side plate 21, and both output ends of the double-axis motor 23 are fixedly connected to worms 24, and the two worms 24 extend through the side plate 21 to the outside. The outer wall of one end of the worm gear 25 is meshed, and a threaded rod 26 is fixedly connected to the top of the worm gear 25, and the end of the threaded rod 26 away from the worm gear 25 A slider 27 is threadedly connected, and mounting covers 210 are symmetrically fixedly connected on both sides of the side panel 21. Fixed blocks 29 are symmetrically fixedly connected to the tops of both sides of the side panel 21. The tops of the threaded rods 26 are bearing-connected to the fixed blocks 29. The slider 27 and the slide groove 22 form a sliding connection structure. A support bar 28 is fixedly connected to one side of the slider 27. The top of the support bar 28 is fixedly connected to the inspection platform 3. The top of the inspection platform 3 is fixedly connected to the enclosure 4. Shock-absorbing and buffering mechanisms 8 are arranged at the four corners of the inner wall of the enclosure 4. A support plate 7 is arranged on the top of the shock-absorbing and buffering mechanism 8. Stabilizing mechanisms 5 are symmetrically arranged on both sides of the bottom of the base 1.

[0022] In the embodiment of the present application, when in use, the self-locking universal wheel 6 is provided to facilitate moving the device to the desired position, thereby moving the device into the furnace. When the device is in use, the threaded rotating rod 51 is rotated, and the threaded rotating rod 51 drives the counterweight block 54 to move downward, thereby contacting the ground, which is convenient for stabilizing the device as a whole, thereby effectively preventing the device from tipping over. Then, the maintenance staff stands on the support plate 7 and starts the double-axis motor 23. The double-axis motor 23 is a forward and reverse servo motor, which is convenient for controlling its forward and reverse rotation. The double-axis motor 23 drives the two worms 24 clockwise (or counterclockwise) The meshing between the worm 24 and the worm wheel 25 drives the threaded rod 26 to rotate, and the threaded rod 26 drives the support bar 28 to move upward (or downward), thereby driving the support plate 7 to move upward (or downward) stably, so that the staff can perform inspection, cleaning, welding and other operations at different heights in the furnace. The operation is convenient and it is convenient to improve the maintenance efficiency. The cooperation between the spring 82 and the damper 84 can make the support plate 7 move down along the guide rod 83 to squeeze the spring 82 when the maintenance platform 3 is lowered, so as to buffer the impact force of the descent, reduce the impact force on the staff, and facilitate the maintenance work of the power plant furnace.

[0023] Furthermore, the stabilizing mechanism 5 includes a threaded rotating rod 51 threadedly connected to both sides of the top of the base 1, the threaded rotating rod 51 passes through the base 1 and extends to one end of the bottom and is provided with a bearing 52, a counterweight block 54 is fixedly connected to the bottom of the bearing 52, and limited telescopic rods 53 are symmetrically fixedly connected to both sides of the top of the counterweight block 54, and the top of the limited telescopic rod 53 is fixedly connected to the bottom of the base 1. When in use, by rotating the threaded rotating rod 51, the threaded rotating rod 51 drives the counterweight block 54 to move downward, thereby contacting the ground, thereby stabilizing the device as a whole.

[0024] Furthermore, the shock-absorbing and buffering mechanism 8 includes a movable groove 81 opened around the inner wall of the enclosure 4, the enclosure 4 is located at the top of the movable groove 81 and is fixedly connected with a guide rod 83, the bottom of the guide rod 83 is fixedly connected to the top of the maintenance platform 3, the top of the guide rod 83 is movably sleeved with a movable plate 85, the bottom of the movable plate 85 is fixedly connected with a damper 84, the bottom of the damper 84 is fixedly connected to the top of the maintenance platform 3, the outer wall of the damper 84 is sleeved with a spring 82, and the top of the movable plate 85 is fixedly connected to the bottom of the support plate 7. When in use, the cooperation between the spring 82 and the damper 84 can make the support plate 7 move down along the guide rod 83 to squeeze the spring 82 when the maintenance platform 3 is lowered, so as to buffer the downward impact force, reduce the impact force on the staff, and facilitate the maintenance work on the furnace of the power plant.

[0025] Furthermore, the four corners of the bottom of the base 1 are fixedly connected with self-locking universal wheels 6. When in use, the device can be easily moved to a desired position by means of the provided self-locking universal wheels 6.

[0026] The working principle of the utility model is as follows: when in use, the self-locking universal wheel 6 is provided, so that the device can be moved to the desired position, and then the threaded rotating rod 51 is rotated, and the threaded rotating rod 51 drives the counterweight 54 to move downward, thereby contacting the ground, which is convenient for stabilizing the device as a whole. Then, the maintenance staff stands on the support plate 7, and starts the double-axis motor 23. The double-axis motor 23 drives the two worms 24 to rotate clockwise (or counterclockwise), and the meshing between the worm 24 and the worm wheel 25 drives the threaded rod 26 to rotate, and the threaded rod 26 drives the support bar 28 to move upward (or downward), thereby driving the support plate 7 to move upward (or downward) stably, so that the staff can check, clean, weld and other operations at different heights in the furnace, and the operation is convenient, which is convenient for improving the maintenance efficiency. The cooperation between the spring 82 and the damper 84 can make the support plate 7 move downward along the guide rod 83 to squeeze the spring 82 when the maintenance platform 3 is put down, so as to buffer the impact force of the descent, reduce the impact force received by the staff, and facilitate the maintenance of the furnace of the power plant.

[0027] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0028] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0029] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A furnace maintenance device for a power plant, comprising a base (1), characterized in that: A height adjustment mechanism (2) is provided on one side of the top of the base (1), and the height adjustment mechanism (2) comprises a side plate (21) fixedly connected to one side of the top of the base (1), a mounting groove is provided in the middle of the bottom of the side plate (21), and sliding grooves (22) are symmetrically provided on both sides of the side plate (21), a double-axis motor (23) is fixedly installed in the mounting groove at the top of the side plate (21), and both output ends of the double-axis motor (23) are fixedly connected to worms (24), and the outer wall of one end of the two worms (24) extending through the side plate (21) to the outside is meshed with a worm wheel (25), The top of the worm gear (25) is fixedly connected to a threaded rod (26), one end of the threaded rod (26) away from the worm gear (25) is threadedly connected to a slider (27), one side of the slider (27) is fixedly connected to a support bar (28), the top of the support bar (28) is fixedly connected to an inspection platform (3), the top of the inspection platform (3) is fixedly connected to a surrounding plate (4), the four corners of the inner wall of the surrounding plate (4) are provided with shock absorbing and buffering mechanisms (8), the top of the shock absorbing and buffering mechanism (8) is provided with a support plate (7), and the bottom of the base (1) is symmetrically provided with stabilizing mechanisms (5) on both sides.

2. A power plant furnace maintenance device according to claim 1, characterized in that: The two sides of the side plate (21) are symmetrically fixedly connected with mounting covers (210), the tops of the two sides of the side plate (21) are symmetrically fixedly connected with fixing blocks (29), the tops of the threaded rods (26) are bearing-connected with the fixing blocks (29), and the sliders (27) and the slide grooves (22) form a sliding connection structure.

3. The power plant furnace maintenance device according to claim 1, characterized in that: The stabilizing mechanism (5) comprises a threaded rotating rod (51) threadedly connected to both sides of the top of the base (1); the threaded rotating rod (51) passes through the base (1) and extends to one end of the bottom, where a bearing (52) is provided; and a counterweight block (54) is fixedly connected to the bottom of the bearing (52).

4. A power plant furnace maintenance device according to claim 3, characterized in that: The top of the counterweight block (54) is symmetrically and fixedly connected to the limiting telescopic rods (53) on both sides, and the top of the limiting telescopic rods (53) is fixedly connected to the bottom of the base (1).

5. The power plant furnace maintenance device according to claim 1, characterized in that: The shock absorbing and buffering mechanism (8) comprises a movable groove (81) provided around the inner wall of the enclosure (4); the enclosure (4) is fixedly connected to a guide rod (83) at the top of the movable groove (81); the bottom of the guide rod (83) is fixedly connected to the top of the inspection platform (3); the top of the guide rod (83) is movably sleeved with a movable plate (85); the bottom of the movable plate (85) is fixedly connected to a damper (84); the bottom of the damper (84) is fixedly connected to the top of the inspection platform (3); the outer wall of the damper (84) is sleeved with a spring (82); and the top of the movable plate (85) is fixedly connected to the bottom of the support plate (7).

6. The power plant furnace maintenance device according to claim 1, characterized in that: The four corners of the bottom of the base (1) are fixedly connected with self-locking universal wheels (6).

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