Portable hoisting device for overhauling soot blower on site of boiler

Abstract

The utility model discloses a portable boiler field soot blower overhauling and hoisting device, and belongs to the technical field of boiler equipment. A portable boiler field soot blower overhauling and hoisting device comprises a supporting frame A and a supporting frame B. Two hinged limiting rods are arranged between the end of the supporting frame A and the end of the supporting frame B. One end of each limiting rod is in sliding fit with the supporting frame A, and the other end of each limiting rod is in transmission connection with a two-way lead screw rotationally connected to the supporting frame B. A transverse rod is arranged between the supporting frame A and the supporting frame B. Two sliding seats are connected to the transverse rod in a sliding mode, and lifting tools are fixedly connected to the sliding seats. Two sliding blocks B are driven to get close by rotating a connecting shaft and a bidirectional lead screw, a limiting rod drives a supporting frame A and a supporting frame B to get away from each other, a supporting rod drives a transverse rod to descend to be flush with the end of the supporting frame A, the connecting shaft is reversely rotated, the supporting frame A and the supporting frame B get close to each other, and the supporting rod drives the transverse rod to descend to the position between the supporting frame A and the supporting frame B, so that the occupied space can be effectively reduced; and the device is convenient to move and carry when not in use.

Description

Technical Field

[0001] The present application relates to the technical field of boiler equipment, and more specifically, to a portable boiler on-site sootblower maintenance hoisting device. Background Art

[0002] At present, the sootblowing equipment installed in power station boilers are mainly steam sootblower, sonic sootblower and shock wave sootblower. Steam sootblower is currently the most widely used and most effective one. However, due to the characteristics of the structure and medium, as well as the influence of the high temperature environment, the sootblowing gun barrel is prone to jamming, failure, steam leakage and other phenomena, and the equipment failure rate is relatively high. Therefore, when a failure occurs, it needs to be hoisted and repaired. The prior art patent document with the publication number CN219670043U provides a portable boiler on-site sootblower maintenance hoisting device, which can be directly placed on the sootblower fixed bridge through a card slot limit device, and the card slot limit device is used to prevent the hoisting device from shifting. The hoisting hook can be directly hung on the hook hole for hoisting. When it needs to be moved for hoisting, it only needs to be moved above the required hoisting position.

[0003] In view of the above-mentioned related technologies, the inventor believes that since the load-bearing plate is composed of two welded iron plates, it cannot be folded to reduce the space. Due to its heavy weight and large space occupied, it is not convenient to take, use and place. Therefore, we propose a portable boiler on-site sootblower maintenance hoisting device. Utility Model Content

[0004] In order to improve the problems raised in the above background technology, the present application provides a portable boiler on-site sootblower maintenance hoisting device, which adopts the following technical solutions:

[0005] A portable boiler on-site sootblower maintenance hoisting device comprises a support frame A and a support frame B in a C-shaped structure, two mutually hinged limit rods are arranged between the ends of the support frame A and the support frame B, one end of the limit rod is slidably matched with the support frame A, and the other end is connected to the bidirectional screw transmission connected to the support frame B for rotation, a cross bar is arranged between the support frame A and the support frame B, and both ends of the support frame A and the support frame B are hinged with a strut, the strut is rotatably connected to the cross bar, two slide seats are slidably connected to the cross bar, and a hoist is fixedly connected to the slide seat.

[0006] By adopting the above technical solution, when in use, after the hanger is connected to the soot blower, the two-way screw rod is rotated to rotate the two connected limit rods, and the distance between the two limit rods increases, so that the distance between the support frame A and the support frame B is reduced, and the cross bar is driven up by the support rod, so that the soot blower can be lifted for easy maintenance. When the two-way screw rod is rotated in the opposite direction, the distance between the support frame A and the support frame B can be expanded. When the cross bar is flush with the upper end of the support frame A, the two-way screw rod can be rotated in the opposite direction again, so that the support rod drives the cross bar to shrink to between the support frame A and the support frame B, thereby reducing the occupied space and facilitating movement and carrying.

[0007] Optionally, a slider A is hingedly connected to one end of the limit rod, and the slider A slidably cooperates with a slide rail A fixedly connected to the support frame A. A slider B is hingedly connected to the other end of the limit rod, and the slider B slidably cooperates with the bidirectional screw rod.

[0008] By adopting the above technical solution, the two-way screw rotates to cause the two sliders B to move in opposite directions, the two limit rods rotate, and the slider A cooperates with the slide rail A to change the distance between the support frame A and the support frame B.

[0009] Optionally, both ends of the support frame A and both ends of the support frame B are fixedly connected with universal wheels.

[0010] By adopting the above technical solution, when the distance between the support frame A and the support frame B changes, the resistance can be reduced by the rolling contact between the universal wheels and the ground, and it is convenient to push the device to move.

[0011] Optionally, a coupling is rotatably connected to the support frame B, both ends of the coupling are fixedly connected to rotating wheels, and the coupling and the bidirectional screw are meshed and driven by bevel gears.

[0012] By adopting the above technical solution, the rotating wheel is rotated to make the connecting shaft drive the two bidirectional screw rods to rotate synchronously, so that the support frame A and the support frame B move parallel to each other.

[0013] Optionally, both sides of the support frame A and both sides of the support frame B are fixedly connected with slide rails B, and a reinforcement rod is slidably connected between two slide rails B arranged laterally.

[0014] By adopting the above technical solution, the reinforcement rod can slide upward through the slide rail B, so that one side of the support frame A or the support frame B is opened, which facilitates the movement of the device to the outside of the soot blower. When the reinforcement rod is located at the bottom of the slide rail B, it cooperates with the support frame A or the support frame B to form a rectangular frame, thereby increasing the structural stability.

[0015] In summary, the present application includes at least one of the following beneficial technical effects:

[0016] 1. When not in use, by rotating the connecting shaft, the two-way screw drives the two sliders B closer, the limit rod drives the support frame A and the support frame B away from each other, and the support rod drives the cross bar to drop to the same level as the end of the support frame A, and then the connecting shaft is rotated in the opposite direction, the support frame A and the support frame B are closer to each other, and the support rod drives the cross bar to drop to between the support frame A and the support frame B, thereby effectively reducing the occupied space and facilitating movement and carrying when not in use.

[0017] 2. When the reinforcement rod slides upward, one side of the support frame A or the support frame B is opened, so that the device can be moved to the outside of the soot blower. When the reinforcement rod is located at the bottom of the slide rail B, it cooperates with the support frame A or the support frame B to form a rectangular frame to increase the structural stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a portable boiler on-site sootblower maintenance hoisting device according to an embodiment of the present application;

[0019] Figure 2 This is a schematic structural diagram of a limit rod, a support frame A, and a support frame B of a portable boiler on-site sootblower maintenance hoisting device according to an embodiment of the present application;

[0020] Figure 3 This is a schematic diagram of the structure of a slide rail B and a reinforcement rod of a portable boiler on-site sootblower maintenance hoisting device according to an embodiment of the present application;

[0021] Explanation of the numbers in the figure: 1. Support frame A; 2. Support frame B; 3. Limit rod; 4. Slider A; 5. Slide rail A; 6. Bidirectional screw rod; 7. Slider B; 8. Universal wheel; 9. Coupling; 10. Rotating wheel; 11. Cross bar; 12. Strut; 13. Slide seat; 14. Lifting device; 15. Slide rail B; 16. Reinforcement rod. DETAILED DESCRIPTION

[0022] The present application is further described in detail below in conjunction with the accompanying drawings.

[0023] Reference Figure 1-3The present application includes a support frame A1 and a support frame B2 in a C-shaped structure. Two mutually hinged limit rods 3 are arranged between the ends of the support frame A1 and the support frame B2. One end of the limit rod 3 is slidably matched with the support frame A1, and the other end is transmission-connected with a bidirectional screw rod 6 rotatably connected to the support frame B2. A cross bar 11 is arranged between the support frame A1 and the support frame B2, and a support rod 12 is hinged at both ends of the support frame A1 and the support frame B2. The support rod 12 is rotatably connected to the cross bar 11. Two slide seats 13 are slidably connected to the cross bar 11, and a hanger 14 is fixedly connected to the slide seat 13. When in use, the hanger 14 is connected to the blower After the ash blower is connected, the two-way screw rod 6 is rotated to rotate the two connected limit rods 3, and the distance between the two limit rods 3 increases, so that the distance between the support frame A1 and the support frame B2 is reduced. The cross bar 11 is driven up by the support rod 12, so that the ash blower can be lifted for easy maintenance. When the two-way screw rod 6 is rotated in the opposite direction, the distance between the support frame A1 and the support frame B2 can be expanded. When the cross bar 11 is flush with the upper end of the support frame A1, the two-way screw rod 6 can be rotated in the opposite direction again, so that the support rod 12 drives the cross bar 11 to shrink between the support frame A1 and the support frame B2, thereby reducing the occupied space and facilitating movement and carrying.

[0024] Reference Figure 2 A slider A4 is hinged at one end of the limit rod 3, and the slider A4 slides with the slide rail A5 fixedly connected to the support frame A1. A slider B7 is hinged at the other end of the limit rod 3, and the slider B7 slides with the bidirectional screw rod 6. The rotation of the bidirectional screw rod 6 causes the two sliders B7 to move in opposite directions, and the two limit rods 3 rotate, and the slider A4 cooperates with the slide rail A5 to change the distance between the support frame A1 and the support frame B2.

[0025] Reference Figure 2 Both ends of the support frame A1 and the support frame B2 are fixedly connected with universal wheels 8. When the distance between the support frame A1 and the support frame B2 changes, the universal wheels 8 can reduce resistance by rolling contact with the ground, and at the same time, it is convenient to push the device to move.

[0026] Reference Figure 3 A coupling shaft 9 is rotatably connected to the support frame B2, and both ends of the coupling shaft 9 are fixedly connected to a rotating wheel 10. The coupling shaft 9 and the bidirectional screw rod 6 are driven by bevel gear meshing. Rotating the rotating wheel 10 causes the coupling shaft 9 to drive the two bidirectional screw rods 6 to rotate synchronously, so that the support frame A1 and the support frame B2 move parallel to each other.

[0027] Reference Figure 3Slide rails B15 are fixedly connected on both sides of the support frame A1 and the support frame B2. A reinforcement rod 16 is slidably connected between the two transversely arranged slide rails B15. The reinforcement rod 16 can slide upward through the slide rail B15, so that one side of the support frame A1 or the support frame B2 is opened, which facilitates the movement of the device to the outside of the soot blower. When the reinforcement rod 16 is located at the bottom of the slide rail B15, it cooperates with the support frame A1 or the support frame B2 to form a rectangular frame to increase the structural stability.

[0028] The implementation principle of a portable boiler on-site sootblower maintenance hoisting device in the embodiment of the present application is as follows: Figure 1 In this state, the reinforcement rod 16 on one side can be slid upward to move the device and place the soot blower between the support frame A1 and the support frame B2 through this side. After sliding the slide 13 to connect the hanger 14 to the soot blower, the rotating wheel 10 drives the two bidirectional screws 6 to rotate, and the two sliders B7 move away from each other. The limit rod 3 drives the distance between the support frames A1 and B2 to decrease, and the support rod 12 drives the cross bar 11 to rise, thereby driving the soot blower to rise, so as to facilitate its maintenance.

[0029] Similarly, rotating the wheel 10 in the opposite direction can increase the distance between the support frames A1 and B2, and the strut 12 drives the cross bar 11 to descend. When the hanger 14 is disconnected from the soot blower and the cross bar 11 is flush with the upper end of the support frame A1, the wheel 10 is rotated in the opposite direction again, the distance between the support frames A1 and B2 is reduced, and the strut 12 drives the cross bar 11 to shrink between the support frames A1 and B2, thereby reducing the occupied space.

Claims

1. A portable boiler on-site sootblower maintenance hoisting device, characterized in that: It comprises a support frame A (1) and a support frame B (2) in a C-shaped structure, wherein two mutually hinged limit rods (3) are arranged between the ends of the support frame A (1) and the support frame B (2), one end of the limit rod (3) is slidably matched with the support frame A (1), and the other end is transmission-connected to a bidirectional screw rod (6) rotatably connected to the support frame B (2), a cross bar (11) is arranged between the support frame A (1) and the support frame B (2), and a support rod (12) is hinged at both ends of the support frame A (1) and the support frame B (2), the support rod (12) is rotatably connected to the cross bar (11), two slide seats (13) are slidably connected to the cross bar (11), and a sling (14) is fixedly connected to the slide seat (13).

2. A portable boiler on-site sootblower maintenance hoisting device according to claim 1, characterized in that: A slider A (4) is hingedly connected to one end of the limit rod (3), and the slider A (4) is slidably matched with a slide rail A (5) fixedly connected to the support frame A (1). A slider B (7) is hingedly connected to the other end of the limit rod (3), and the slider B (7) is slidably matched with the bidirectional screw rod (6).

3. A portable boiler on-site sootblower maintenance hoisting device according to claim 1, characterized in that: Universal wheels (8) are fixedly connected to both ends of the support frame A (1) and both ends of the support frame B (2).

4. A portable boiler on-site sootblower maintenance hoisting device according to claim 1, characterized in that: The support frame B (2) is rotatably connected to a connecting shaft (9), both ends of the connecting shaft (9) are fixedly connected to rotating wheels (10), and the connecting shaft (9) and the bidirectional screw rod (6) are meshed and driven by bevel gears.

5. A portable boiler on-site sootblower maintenance hoisting device according to claim 1, characterized in that: Both sides of the support frame A (1) and both sides of the support frame B (2) are fixedly connected with slide rails B (15), and a reinforcement rod (16) is slidably connected between two slide rails B (15) arranged transversely.

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