Guide vane shaft sleeve dismounting device

Abstract

The utility model provides a guide vane shaft sleeve dismantling device which comprises a guide vane shaft sleeve body, electric push rods arranged in an annular mode are arranged above the guide vane shaft sleeve body, a pull-out assembly is installed at the top ends of the electric push rods together, and the pull-out assembly comprises a cross plate arranged above the guide vane shaft sleeve body. The telescopic end of each electric push rod is connected with the bottom face of a cross plate, and the upper surface of the cross plate is rotationally connected with a threaded rod. According to the device, a threaded rod, a threaded cylinder, a push rod, a push frame, a supporting plate and a connecting plate are arranged, the supporting frame is matched with an electric push rod, the threaded rod is rotated, the threaded cylinder can drive the push rod and the push frame to descend, the supporting plate can deflect downwards to lie flat, and meanwhile the connecting plate can deflect to lie flat into the supporting plate; when the guide vane shaft sleeve body is detached, the supporting plates are opened and evenly distributed below the guide vane shaft sleeve body, the electric push rod exerts upward thrust on the guide vane shaft sleeve body to pull out the guide vane shaft sleeve body when stretching, operation is convenient and fast, and the detaching efficiency can be improved.

Description

Technical Field

[0001] This utility model relates to the technical field of guide vane bushing installation and removal equipment, and in particular to a guide vane bushing removal device. Background Technology

[0002] Guide vane bushings are a type of key component commonly used in mechanical equipment, especially in turbines, pumps, and fans. They are used to reduce friction, improve working efficiency, and ensure stable operation of the equipment. After long-term use, they are prone to wear, corrosion, or deformation. When the guide vane bushing is worn to a certain extent, it needs to be removed and replaced.

[0003] Application number 202323333764.6 relates to a guide vane bushing removal device, including a mounting plate, a connecting rod, a hydraulic push rod, and a pad. The pad is located at the bottom of the guide vane bushing; the hydraulic push rod is located on the upper part of the pad, with its end abutting against the mounting plate; multiple connecting rods are provided, one end connected to the mounting plate and the other end connected to the guide vane bushing. This invention uses the hydraulic push rod to drive the mounting plate upwards, which in turn pulls the guide vane bushing upwards to disengage it from the shaft hole via the connecting rod. The vertical upward push of the hydraulic push rod ensures the vertical movement of the guide vane bushing, preventing scratches on the inner wall of the shaft hole and guaranteeing the subsequent installation of a new bushing.

[0004] The above solution has shortcomings in use. First, the screw and the guide vane bushing must be connected to fix the mounting plate. Only after this fixation is completed can the hydraulic push rod push the mounting plate normally, thereby driving the screw to pull the guide vane bushing out. This process involves multiple steps, which is time-consuming and labor-intensive, and the dismantling efficiency is relatively low. Therefore, we propose a guide vane bushing dismantling device to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a guide vane bushing removal device, which solves the problem that the screw must first be connected to the guide vane bushing in order to fix the mounting plate. Only after this fixing is completed can the hydraulic push rod push the mounting plate normally, thereby driving the screw to pull the guide vane bushing out. This process involves multiple steps, is time-consuming and labor-intensive, and has low removal efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A guide vane bushing removal device includes a guide vane bushing body. A ring of electric push rods is arranged above the guide vane bushing body. A pull-out assembly is installed at the top of a group of electric push rods. The pull-out assembly includes a cross plate disposed above the guide vane bushing body. The telescopic end of each electric push rod is connected to the bottom surface of the cross plate. A threaded rod is rotatably connected to the upper surface of the cross plate. The bottom end of the threaded rod extends to the bottom of the cross plate and is rotatably connected to a square column.

[0008] In a further embodiment, the outer surface of the threaded rod is threadedly connected to a threaded cylinder, and the outer surface of the threaded cylinder is fixedly connected to a ring-shaped push rod. The bottom ends of the two sets of push rods are fixedly connected to a push frame, and the push frame is slidably connected to the outer surface of the square column.

[0009] In a further embodiment, a throttle is fixedly connected to the top end of the threaded rod, and an anti-slip sleeve is fitted on the outer surface of the throttle.

[0010] In a further embodiment, the outer surface of the square column is fixedly connected with a ring of supporting frames, the inner wall of each supporting frame is hinged with a connecting plate, the end of each connecting plate away from the square column is hinged with a supporting plate, and the bottom end of each supporting plate near the square column is hinged to the bottom surface of the push frame.

[0011] In a further embodiment, a reinforcing plate is fixedly connected to the bottom surface of each of the support frames, and the other end of each reinforcing plate is connected to the outer surface of the square column.

[0012] In a further embodiment, a baffle is fixedly connected to the outer surface of the square column, and the baffle is located at the top of the square column.

[0013] In a further embodiment, a ring-shaped pad is mounted on the bottom end of a group of electric push rods, and the bottom surface of the ring-shaped pad is provided with anti-slip texture.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This application utilizes a threaded rod, threaded cylinder, push rod, push frame, support plate, connecting plate, and electric push rod in coordination. By rotating the threaded rod, the threaded cylinder causes the push rod and push frame to descend, causing the support plate to tilt downwards and lie flat. Simultaneously, the connecting plate also tilts and lies flat inside the support plate, resulting in the support plates opening up and evenly distributing themselves below the guide vane bushing body. When the electric push rod extends, it applies an upward thrust to the guide vane bushing body, pulling it out. This method is convenient to operate and improves dismantling efficiency.

[0016] 2. The annular pad provided in this application can stably support the electric push rod, preventing the electric push rod from causing the cross plate to shift. This further ensures that the square column is in the center position of the guide vane bushing body. The support plate will then apply a uniform upward thrust to the guide vane bushing body to prevent the guide vane bushing body from tilting and scratching the shaft hole. The baffle frame can prevent the push frame from separating from the square column when it moves upward, ensuring the smooth lifting and lowering of the push frame. Attached Figure Description

[0017] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0018] Figure 1 A schematic diagram of the overall three-dimensional structure of the guide vane bushing removal device;

[0019] Figure 2 A three-dimensional structural diagram of the annular pad for the guide vane bushing removal device;

[0020] Figure 3 A three-dimensional structural diagram of the pull-out assembly of the guide vane bushing removal device;

[0021] Figure 4 A three-dimensional structural schematic diagram of a square column top view of a guide vane bushing removal device;

[0022] Figure 5 A three-dimensional structural diagram of the push frame for the guide vane bushing removal device.

[0023] In the diagram: 1. Guide vane bushing body; 2. Electric push rod; 3. Pull-out assembly; 301. Cross plate; 302. Threaded rod; 303. Square column; 304. Threaded cylinder; 305. Push rod; 306. Push frame; 307. Rotary handle; 308. Support frame; 309. Connecting plate; 310. Support plate; 311. Reinforcing plate; 312. Stop frame; 4. Annular pad. Detailed Implementation

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-5 In this utility model, a guide vane bushing removal device includes a guide vane bushing body 1. An electric push rod 2 arranged in a ring is provided above the guide vane bushing body 1. An annular pad 4 is installed at the bottom end of a group of electric push rods 2. The bottom surface of the annular pad 4 is provided with anti-slip texture. The annular pad 4 can stabilize the electric push rod 2 and prevent the electric push rod 2 from deviating, ensuring that the electric push rod 2 is evenly distributed above the guide vane bushing body 1.

[0027] like Figure 2 As shown: A set of electric push rods 2 are all equipped with a pull-out assembly 3 at their top ends. The pull-out assembly 3 includes a cross plate 301 set above the guide vane bushing body 1. The telescopic end of each electric push rod 2 is connected to the bottom surface of the cross plate 301. When the electric push rod 2 extends, it can apply a balanced upward thrust to the four corners of the cross plate 301.

[0028] like Figure 3 As shown: A threaded rod 302 is rotatably connected to the upper surface of the cross plate 301. A handle 307 is fixedly connected to the top of the threaded rod 302. An anti-slip sleeve is fitted on the outer surface of the handle 307. The handle 307 facilitates the rotation of the threaded rod 302 by the operator to prevent slippage when rotating the threaded rod 302.

[0029] like Figure 3 As shown: The bottom end of the threaded rod 302 extends to the bottom of the cross plate 301 and is rotatably connected to a square column 303. The outer surface of the threaded rod 302 is threadedly connected to a threaded cylinder 304. The outer surface of the threaded cylinder 304 is fixedly connected to a ring of push rods 305. The bottom ends of the two sets of push rods 305 are fixedly connected to a push frame 306, and the push frame 306 is slidably connected to the outer surface of the square column 303. When the threaded rod 302 is rotated, the operator can stabilize the square column 303 to prevent the threaded rod 302 from causing the square column 303 to rotate. At the same time, the threaded cylinder 304 will descend on the threaded rod 302, and the push rods 305 will push the push frame 306 to descend on the square column 303.

[0030] like Figure 4As shown: A ring of support frames 308 is fixedly connected to the outer surface of the square column 303. Each support frame 308 has a connecting plate 309 hinged to its inner wall. Each connecting plate 309 has a support plate 310 hinged to its end away from the square column 303. The bottom end of each support plate 310 near the square column 303 is hinged to the bottom surface of the push frame 306. When the push frame 306 descends, it will push the support plate 310 to deflect. At the same time, the connecting plate 309 will also deflect. The connecting plate 309 will lie flat inside the support frame 308, and the support plate 310 will lie flat on the connecting plate 309. When the electric push rod 2 extends, the support plate 310 will contact the bottom end of the guide vane bushing body 1 and apply a balanced upward thrust to it, which can easily complete the removal of the guide vane bushing body 1 and further ensure the efficiency of removal.

[0031] like Figure 4 As shown: Each support frame 308 has a reinforcing plate 311 fixedly connected to its bottom surface. The other end of each reinforcing plate 311 is connected to the outer surface of the square column 303. The reinforcing plate 311 can support the support frame 308, and further support the connecting plate 309 and the support plate 310, thereby ensuring the stability of the guide vane bushing body 1 when the support plate 310 moves upward.

[0032] like Figure 5 As shown: A baffle 312 is fixedly connected to the outer surface of the square column 303. The baffle 312 is located at the top of the square column 303. The baffle 312 can limit the push frame 306 and prevent the push frame 306 from separating from the square column 303.

[0033] The working principle of this specific embodiment is as follows: When in use, the square column 303 is inserted into the center of the guide vane bushing body 1, and then the threaded rod 302 is rotated to stabilize the square column 303 and prevent it from rotating. The threaded cylinder 304 will descend on the threaded rod 302, and at the same time, the push rod 305 will push the push frame 306 downward. The push frame 306 will push one end of the support plate 310 downward, and the support plate 310 will gradually deflect and lie flat. At the same time, the connecting plate 309 will also deflect and lie flat inside the support frame 308. Then, the electric push rod 2 is activated to extend, and the support plate 310 will contact the bottom of the guide vane bushing body 1 and apply a uniform upward thrust to it, so that the guide vane bushing body 1 can be gradually pulled out. The operation is convenient and further ensures the removal efficiency.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A guide vane bushing removal device, characterized in that: The device includes a guide vane bushing body (1), above which are arranged a ring of electric push rods (2). A pull-out assembly (3) is installed at the top of a group of electric push rods (2). The pull-out assembly (3) includes a cross plate (301) disposed above the guide vane bushing body (1). The telescopic end of each electric push rod (2) is connected to the bottom surface of the cross plate (301). A threaded rod (302) is rotatably connected to the upper surface of the cross plate (301). The bottom end of the threaded rod (302) extends to the bottom of the cross plate (301) and is rotatably connected to a square column (303).

2. The guide vane bushing removal device according to claim 1, characterized in that: The outer surface of the threaded rod (302) is threadedly connected to a threaded cylinder (304), and the outer surface of the threaded cylinder (304) is fixedly connected to a ring-shaped push rod (305). The bottom ends of the two sets of push rods (305) are fixedly connected to a push frame (306), and the push frame (306) is slidably connected to the outer surface of the square column (303).

3. The guide vane bushing removal device according to claim 1, characterized in that: The top end of the threaded rod (302) is fixedly connected to a throttle (307), and the outer surface of the throttle (307) is covered with an anti-slip sleeve.

4. The guide vane bushing removal device according to claim 1, characterized in that: The outer surface of the square column (303) is fixedly connected with a ring of supporting frames (308). Each supporting frame (308) has a connecting plate (309) hinged to its inner wall. Each connecting plate (309) has a supporting plate (310) hinged to its end away from the square column (303). The bottom end of each supporting plate (310) near the square column (303) is hinged to the bottom surface of the push frame (306).

5. The guide vane bushing removal device according to claim 4, characterized in that: Each of the support frames (308) has a reinforcing plate (311) fixedly connected to its bottom surface, and the other end of each of the reinforcing plates (311) is connected to the outer surface of the square column (303).

6. The guide vane bushing removal device according to claim 1, characterized in that: A baffle (312) is fixedly connected to the outer surface of the square column (303), and the baffle (312) is located at the top of the square column (303).

7. The guide vane bushing removal device according to claim 1, characterized in that: A ring-shaped pad (4) is installed at the bottom of a group of electric push rods (2), and the bottom surface of the ring-shaped pad (4) is provided with anti-slip texture.

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