A multi-stage centrifugal fan disc turning labor-saving tool

Abstract

This utility model discloses a labor-saving tooling for turning a multi-stage centrifugal fan, belonging to the technical field of turning tooling. It includes a lever, a movable handle, a turning structure, and an adjusting structure. The turning structure is located on the top of the lever's outer surface, and the adjusting structure is located on the side of the lever's outer surface away from the turning structure. The turning structure includes a coupling sleeve, a claw, and a reinforcing support block. The adjusting structure includes a telescopic structure and a fixed structure. The adjusting structure is located on the opposite side of the lever and the movable handle, and the fixed structure is located inside the lever and the movable handle. This labor-saving tooling for turning a multi-stage centrifugal fan utilizes the spacing of the coupling pin bolts combined with the tooling claw to firmly grip the coupling. A gentle press of the movable handle easily completes the turning operation. It can be operated by a single person, improving work efficiency and saving time and effort. The overall length can be adjusted according to usage needs, making operation more convenient, and adjustments can be made as needed during use without removing the tooling for adjustment.

Description

Technical Field

[0001] This utility model relates to the field of turning gear tooling technology, and in particular to a labor-saving turning gear tooling for multi-stage centrifugal fans. Background Technology

[0002] Multistage centrifugal fans are equipment used for blowing air. They are widely used in various smelting boilers, coal washing plants, mine flotation, sewage treatment, chemical gasification and other occasions that require air transportation. They can also be used to transport other non-corrosive gases, such as blast furnace air supply, sewage treatment aeration air supply, coke oven gas, vertical furnace sintering air supply, etc. Turning the motor around refers to manually rotating the motor a few times before starting it to determine whether the load driven by the motor is stuck and the resistance is increased, so as not to increase the starting load of the motor and damage it.

[0003] Before starting a multi-stage centrifugal fan, it must be confirmed that the cranking mechanism is easy to operate. Because multi-stage centrifugal fans are large in size and have multiple impellers, existing cranking tools generally require multiple people to operate, making the overall operation laborious and inefficient. Utility Model Content

[0004] To address the problems of laborious operation and low work efficiency, this utility model provides a labor-saving tooling for rotating multi-stage centrifugal fans. The technical solution is as follows:

[0005] A multi-stage centrifugal fan turning tool for labor saving includes a lever, a movable handle, a turning structure and an adjusting structure. The turning structure is located on the top of the outer surface of the lever, and the adjusting structure is located on the side of the outer surface of the lever away from the turning structure.

[0006] The turning gear structure includes a coupling sleeve, a pawl, and a reinforcing support block. The coupling sleeve is located on the top of the outer surface of the lever, the pawl is located on the top of the coupling sleeve, and the reinforcing support block is located between the coupling sleeve and the opposite side of the lever.

[0007] The adjustment structure includes a telescopic structure and a fixed structure. The adjustment structure is located on the opposite side of the lever and the movable grip, and the fixed structure is located inside the lever and the movable grip.

[0008] By utilizing the spacing of the coupling pin bolts and the tooling claws to firmly grip the coupling, the turning operation can be easily completed by gently pressing the movable handle. This can be operated by a single person, improving work efficiency and saving time and effort.

[0009] Preferably, the coupling sleeve is arc-shaped, and the number of the pawls is three and they are evenly distributed on the top of the coupling sleeve.

[0010] Preferably, the outer surface of the reinforcing support block is in contact with the coupling sleeve and the lever, respectively.

[0011] Preferably, the telescopic structure includes an adjustment groove and a movable rod. The adjustment groove is located on the side of the lever near the movable handle, and the movable rod is located on the side of the movable handle near the lever. One end of the movable rod extends into the interior of the adjustment groove.

[0012] Preferably, the outer surface of the movable rod is provided with locking rods on all four sides, and the inner wall of the adjusting groove is provided with locking holes of the same size as the locking rods on all four sides.

[0013] Preferably, the fixing structure includes a movable spring, a movable plate, and a locking block. The movable spring is disposed on the left and right sides inside the movable rod. There are two movable plates, which are respectively disposed on the top and bottom of the movable spring. The locking block is disposed on the side of the movable plate away from the movable spring.

[0014] Preferably, the length of the movable rod is equal to the depth of the adjusting groove, and the number of movable springs is several and they are symmetrically and equidistantly distributed.

[0015] Preferably, the number of the locking blocks is several and they are symmetrically and equidistantly distributed on the left and right sides of the movable plate away from the movable spring. The top and bottom of the inner wall of the adjustment groove are provided with locking slots, and the locking blocks are engaged with the locking slots.

[0016] Preferably, the movable rod is provided with limiting rods that penetrate and extend to the outside of the two movable plates around its interior, and the movable plates are provided with limiting holes that are adapted to the size of the limiting rods around their interior.

[0017] Preferably, each of the opposite sides of the movable plate is provided with a pressing block that extends through and out of the movable grip, and the outer surface of the movable grip is provided with an anti-slip sleeve.

[0018] By setting an adjustment structure, the overall length can be adjusted according to usage needs, making operation more convenient. It can also be adjusted as needed during use, making overall use more convenient.

[0019] Beneficial effects:

[0020] The beneficial effects of adopting the technical solution of this utility model are as follows:

[0021] 1. This multi-stage centrifugal fan turning tool is labor-saving. It utilizes the spacing of the coupling pin bolts and the tool's claws to firmly grip the coupling. The turning operation can be easily completed by gently pressing the movable handle. It can be operated by a single person, improving work efficiency and saving time and effort.

[0022] 2. This multi-stage centrifugal fan turning tool is designed to save labor. By setting an adjustment structure, the overall length can be adjusted according to the needs of use, making operation more convenient. It can also be adjusted as needed during use without having to be removed for adjustment, making it more convenient to use overall. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall structure of a multi-stage centrifugal fan turning wheel tool that saves effort.

[0025] Figure 2 This is a front sectional view of the multi-stage centrifugal fan turning tool of this utility model.

[0026] Figure 3 This utility model relates to a labor-saving tooling for rotating multi-stage centrifugal fans. Figure 2 Enlarged structural diagram at point A in the middle.

[0027] In the diagram, 1. Lever; 2. Movable handle; 3. Coupling sleeve; 4. Paw; 5. Reinforcing support block; 6. Adjustment groove; 7. Movable rod; 8. Locking rod; 9. Movable spring; 10. Movable plate; 11. Locking block; 12. Pressing block. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0029] like Figure 1 As shown, a multi-stage centrifugal fan turning tool includes a lever 1, a movable handle 2, a turning structure and an adjustment structure. The turning structure is located on the top of the outer surface of the lever 1, and the adjustment structure is located on the side of the outer surface of the lever 1 away from the turning structure.

[0030] The turning mechanism includes a coupling sleeve 3, a pawl 4, and a reinforcing support block 5. The coupling sleeve 3 is located on the top of the outer surface of the lever 1 and is arc-shaped. The pawl 4 is located on the top of the coupling sleeve 3, and there are three pawls 4 that are evenly distributed on the top of the coupling sleeve 3. The reinforcing support block 5 is located between the coupling sleeve 3 and the lever 1 on opposite sides.

[0031] Specifically, the outer surface of the reinforcing support block 5 is respectively attached to the coupling sleeve 3 and the lever 1, and the reinforcing support block 5 is used to strengthen the connection between the coupling sleeve 3 and the lever 1.

[0032] In this embodiment, the turning gear structure can easily complete the turning gear operation, which can be operated by a single person, improving work efficiency and saving time and effort.

[0033] like Figure 2 As shown, the adjustment structure includes a telescopic structure and a fixed structure. The adjustment structure is located on the opposite side of the lever 1 and the movable handle 2, and the fixed structure is located inside the lever 1 and the movable handle 2. The telescopic structure includes an adjustment groove 6 and a movable rod 7. The adjustment groove 6 is located on the side of the lever 1 near the movable handle 2, and the movable rod 7 is located on the side of the movable handle 2 near the lever 1. One end of the movable rod 7 extends into the interior of the adjustment groove 6, and the length of the movable rod 7 is equal to the depth of the adjustment groove 6.

[0034] In this embodiment, locking rods 8 are provided around the outer surface of the movable rod 7, and locking holes of the same size as the locking rods 8 are provided around the inner wall of the adjustment groove 6. The locking rods 8 and locking holes can prevent relative rotation between the lever 1 and the movable handle 2 as much as possible, thereby enhancing the stability of the structure.

[0035] like Figure 3 As shown, the fixed structure includes a movable spring 9, a movable plate 10, and a locking block 11. The movable spring 9 is located on the left and right sides inside the movable rod 7. There are two movable plates 10, which are respectively located at the top and bottom of the movable spring 9. The locking block 11 is located on the side of the movable plate 10 away from the movable spring 9. There are several movable springs 9, which are symmetrically and equidistantly distributed.

[0036] In this embodiment, there are several locking blocks 11, which are symmetrically and equidistantly distributed on the left and right sides of the movable plate 10 away from the movable spring 9. The top and bottom of the inner wall of the adjustment groove 6 are provided with locking slots, and the locking blocks 11 are engaged with the locking slots. The locking blocks 11 and the locking slots can prevent displacement between the lever 1 and the movable handle 2 when no adjustment is made, thus enhancing practicality.

[0037] like Figure 2-3As shown, the movable rod 7 has a limiting rod that extends through and to the outside of the two movable plates 10 around its interior. The movable plates 10 have limiting holes that are adapted to the size of the limiting rods around their interior. The opposite side of each movable plate 10 has a pressing block 12 that extends through and to the outside of the movable handle 2. The outer surface of the movable handle 2 is provided with an anti-slip sleeve, which makes the grip of the movable handle 2 more stable.

[0038] In this embodiment, the limiting rod can prevent the movable plate 10 from shifting as much as possible. Together with the pressing block 12, it can easily separate the locking block 11 from the locking slot, thereby facilitating adjustment.

[0039] The method of using this utility model is as follows:

[0040] By using the spacing of the coupling pin bolts and the tooling claw 4 to firmly grip the coupling, the turning operation can be easily completed by gently pressing the movable handle 2. When the length needs to be adjusted during use, press the two pressing blocks 12 on opposite sides until the locking block 11 separates from the locking groove. Pull or push the movable handle 2 to the desired length and then release the pressing blocks 12. The locking block 11 will engage with the nearest locking groove under the action of the movable spring 9, thus completing the adjustment and fixing of the overall length.

[0041] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A labor-saving tooling for rotating a multi-stage centrifugal fan, characterized in that, include: Lever (1), movable handle (2), turntable structure and adjustment structure, wherein the turntable structure is located on the top of the outer surface of the lever (1) and the adjustment structure is located on the side of the outer surface of the lever (1) away from the turntable structure; The turning gear structure includes a coupling sleeve (3), a pawl (4), and a reinforcing support block (5). The coupling sleeve (3) is located on the top of the outer surface of the lever (1), the pawl (4) is located on the top of the coupling sleeve (3), and the reinforcing support block (5) is located between the coupling sleeve (3) and the lever (1) on opposite sides. The adjustment structure includes a telescopic structure and a fixed structure. The adjustment structure is located on one side opposite to the lever (1) and the movable handle (2), and the fixed structure is located inside the lever (1) and the movable handle (2).

2. The multi-stage centrifugal fan turning tooling according to claim 1, characterized in that, The coupling sleeve (3) is arc-shaped, and the number of the claws (4) is three and they are evenly distributed on the top of the coupling sleeve (3).

3. The multi-stage centrifugal fan turning tooling according to claim 1, characterized in that, The outer surface of the reinforcing support block (5) is respectively attached to the coupling sleeve (3) and the lever (1).

4. The multi-stage centrifugal fan turning tooling according to claim 1, characterized in that, The telescopic structure includes an adjustment groove (6) and a movable rod (7). The adjustment groove (6) is located on the side of the lever (1) near the movable handle (2). The movable rod (7) is located on the side of the movable handle (2) near the lever (1). One end of the movable rod (7) extends into the interior of the adjustment groove (6).

5. The multi-stage centrifugal fan turning tooling according to claim 4, characterized in that, The movable rod (7) is provided with locking rods (8) around its outer surface, and the inner wall of the adjusting groove (6) is provided with locking holes of the same size as the locking rods (8) around its inner surface.

6. The multi-stage centrifugal fan turning tooling according to claim 4, characterized in that, The fixing structure includes a movable spring (9), a movable plate (10), and a locking block (11). The movable spring (9) is located on the left and right sides inside the movable rod (7). There are two movable plates (10), which are located at the top and bottom of the movable spring (9) respectively. The locking block (11) is located on the side of the movable plate (10) away from the movable spring (9).

7. The multi-stage centrifugal fan turning tooling according to claim 6, characterized in that, The length of the movable rod (7) is equal to the depth of the adjustment groove (6), and the number of movable springs (9) is several and they are symmetrically and equidistantly distributed.

8. The multi-stage centrifugal fan turning tooling according to claim 6, characterized in that, The number of the locking blocks (11) is several and they are symmetrically and equally distributed on the left and right sides of the movable plate (10) away from the movable spring (9). The top and bottom of the inner wall of the adjustment groove (6) are provided with locking slots, and the locking blocks (11) are engaged with the locking slots.

9. The multi-stage centrifugal fan turning tooling according to claim 6, characterized in that, The movable rod (7) is provided with limiting rods that penetrate and extend to the outside of the two movable plates (10) on all four sides inside. The movable plates (10) are provided with limiting holes that are adapted to the size of the limiting rods on all four sides inside.

10. The multi-stage centrifugal fan turning tooling according to claim 6, characterized in that, Each of the movable plates (10) has a pressing block (12) on the opposite side, with one end penetrating through and extending to the outside of the movable handle (2), and the outer surface of the movable handle (2) is provided with an anti-slip sleeve.

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