A ventilation fan impeller mounting bracket and its mounting method

Abstract

The present application discloses a mounting bracket for a ventilator impeller and its mounting method, which relates to the field of impeller tooling equipment; the mounting bracket for the ventilator impeller includes a mounting frame body, and the mounting frame body includes a mounting base and a mounting support arm; a mounting support arm is fixedly arranged on the mounting base, and a roller device is slidably arranged on the mounting base; a clamping device is arranged on the mounting support arm; through the cooperation of the roller device and the clamping device, the present application realizes the vertical support and fixation of the impeller, so as to facilitate the cooperative installation of the impeller and the main shaft of the fan. Moreover, the adjustable distance setting of the roller device can adjust the center of gravity according to different impellers, prevent the impeller from tipping over, avoid safety accidents. At the same time, the existence of the roller device can adjust the rotating impeller, which makes it more convenient for the bolt connection between the impeller and the main shaft, and avoids the installation difficulty caused by the misalignment of the bolt holes.

Description

Technical Field

[0001] This application relates to the field of impeller tooling equipment, and particularly to an installation bracket for a ventilator impeller and an installation method thereof. Background Art

[0002] The fan rotor is an important component of the ventilator, which is assembled by an impeller and a main shaft. The installation accuracy of the impeller and the main shaft will directly affect the operation quality of the fan. There are two installation methods for the fan rotor: vertical installation and horizontal installation. Vertical installation means laying the impeller flat and lifting the main shaft vertically. A suitable pit and workshop height are required to meet the lifting requirements. Since the lengths of the main shafts of large fans are different, the required lifting height is limited, which does not meet the installation requirements, and it is inconvenient to bolt and fix during vertical installation.

[0003] Therefore, the installation of large fan rotors generally adopts the horizontal installation method, that is, the impeller is placed vertically, the main shaft is hoisted horizontally, inserted into the inner hole of the impeller, and then the bolts are installed and tightened. Moreover, the impeller placed vertically is prone to rolling, causing trouble to the installation. At the same time, the center of gravity of the large impeller is relatively high, and it is easy to overturn during the installation process, posing a safety hazard.

[0004] Application Content

[0005] In order to solve the above technical problems of limited lifting height in vertical installation, easy rolling and tipping of the impeller in horizontal installation, and potential safety hazards, this application provides an installation bracket for a ventilator impeller and an installation method thereof.

[0006] On the one hand, the technical problems of this application are realized through the following technical solutions:

[0007] An installation bracket for a ventilator impeller, including an installation frame body, the installation frame body includes an installation base and an installation support arm; an installation support arm is fixedly arranged on the installation base, and a roller device is slidably arranged on the installation base; a clamping device is arranged on the installation support arm.

[0008] Preferably, a plurality of roller groove plates are arranged at intervals on the installation base, and the roller groove plates are symmetrically arranged on both sides of the installation base; the ends of the roller device are arranged between the adjacent roller groove plates on one side.

[0009] Preferably, the roller device includes a roller and a fixing seat; fixing seats are arranged at both ends of the roller, and the roller is rotatably connected with the fixing seat; a wear-resistant bushing is also arranged between the roller and the fixing seat.

[0010] Preferably, the clamping device includes a clamping fixing seat and an adjusting rod; a plurality of installation holes are arranged at intervals at the top end of the installation support arm; the installation support arm is bolted to the clamping fixing seat through the installation holes, and the adjusting rod is rotatably installed on the clamping fixing seat.

[0011] Preferably, the adjusting rod includes a threaded rod, a tightening rod and an adjusting handwheel; the threaded rod is threadedly connected to the clamping and fixing seat; one end of the threaded rod is provided with a tightening rod, and the other end is provided with an adjusting handwheel.

[0012] Preferably, the clamping and fixing seat includes a clamping bottom plate and a threaded cylinder; the clamping bottom plate and the threaded cylinder are an integral structure, an arc-shaped connection hole is provided on the clamping bottom plate, and the clamping bottom plate is bolted to the mounting support arm through the arc-shaped connection hole and the mounting hole.

[0013] Preferably, a roller device is further provided on the mounting frame body, and the roller device can move up and down relative to the mounting frame body.

[0014] Preferably, the roller device includes a lifting jack rod, a limiting frame, a roller assembly and a top block; the lifting jack rod is threadedly connected to the mounting frame body, the limiting frame is fixedly connected to the mounting frame body, and the roller assembly penetrates and connects the limiting frame and the top block; the lower end of the lifting jack rod abuts against the top block.

[0015] On the other hand, the present application also provides an installation method for a ventilation fan impeller mounting bracket, including the following operation steps:

[0016] 1) Adjust the installation position of the idler device, hoist the fan impeller and place it on the idler device;

[0017] 2) Adjust the position of the clamping device and clamp and fix the fan impeller on the idler device;

[0018] 3) Horizontally hoist the main shaft and install and connect the fan impeller and the main shaft.

[0019] Preferably, when the idler device bears the fan impeller, the lowest end of the fan impeller is in a suspended state.

[0020] In summary, the present application has the following beneficial effects:

[0021] 1. The ventilation fan impeller mounting bracket of the present application replaces the simple fixed support method, realizes the vertical support and fixation of the impeller through the cooperation of the idler device and the clamping device, thereby facilitating the installation of the impeller and the fan main shaft. Moreover, the adjustable spacing of the idler device can adjust the center of gravity according to different impellers, prevent the impeller from tipping over, avoid safety accidents. At the same time, the presence of the idler device can adjust the rotating impeller, making it more convenient for the bolt connection between the impeller and the main shaft, and avoiding installation problems caused by misalignment of bolt holes.

[0022] 2. The clamping device in this application adopts a multi-segment structural design. An arc-shaped connection hole is designed on the clamping fixed seat, and multiple mounting holes are provided above the mounting arm, which can adjust the overall angle and position of the clamping device to meet the clamping and fixing requirements of blower impellers of different sizes. At the same time, the multiple structural settings of the adjustment rod make it more convenient for clamping and fixing the impeller and adjusting the distance, meeting the actual installation requirements.

[0023] 3. To cope with the necessary movement of the device, a roller device with a telescopic structure is adopted in this application. Through the cooperation of the lifting jack rod and the roller assembly, when the installation bracket is in the working state, the roller device is not stressed and will not cause the movement of the installation bracket. When movement is required, the roller assembly is pushed out to meet the movement requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is the front view of the overall structure of this application;

[0025] Figure 2 is the top view of the overall structure of this application;

[0026] Figure 3 is the left view of the overall structure of this application;

[0027] Figure 4 is the schematic diagram of the idler device structure;

[0028] Figure 5 is the left view of the idler device structure;

[0029] Figure 6 is the schematic diagram of the clamping device structure;

[0030] Figure 7 is the enlarged sectional view of the structure at A;

[0031] Figure 8 is the enlarged sectional view of the part at B;

[0032] Figure 9 is the enlarged sectional view of the part at C;

[0033] Figure 10 is the schematic diagram of the impeller installation structure.

[0034] 1. Installation frame body; 101. Installation base; 102. Installation arm;

[0035] 2. Idler device; 201. Idler; 202. Fixed seat; 203. Wear-resistant bushing;

[0036] 3. Clamping device; 301. Clamping fixed seat; 3011. Clamping bottom plate; 3012. Threaded barrel;

[0037] 302. Adjusting rod; 3021. Threaded rod; 3022. Tightening rod; 3023. Distance adjusting handwheel;

[0038] 4. Idler trough plate; 5. Mounting hole; 6. Roller device; 601. Lifting jack rod; 602. Limit frame; 603. Roller assembly; 604. Top block. Detailed implementation manners

[0039] In order to be able to more clearly understand the above-mentioned objects, features and advantages of the present application, the following further describes the present application with reference to the accompanying drawings and embodiments.

[0040] Many specific details are set forth in the following description in order to fully understand the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the present application is not limited by the limitations of the specific embodiments disclosed in the following specification.

[0041] A mounting bracket for a ventilator impeller, as Figure 1 、 Figure 2 、 Figure 3 and Figure 10 shown, includes a mounting frame body 1, and the mounting frame body 1 includes a mounting base 101 and mounting arms 102; both the mounting base 101 and the mounting arms 102 are welded by heavy channel steel parts, so as to ensure the overall strength and stiffness of the mounting frame body. Four groups of mounting arms 102 are symmetrically and fixedly welded on the end surface of the mounting base 101. At the same time, a roller device 2 is slidably arranged on the end surface of the mounting base 101; a clamping device 3 is arranged on the mounting arms 102.

[0042] As Figure 3 、 Figure 4 and Figure 5 shown, the mounting base 101 is designed with a common rectangular structure; several idler trough plates 4 are welded on the mounting base 101. To ensure the welding strength, a rib plate is welded on each idler trough plate 4 for reinforcement and support; the idler trough plates 4 are symmetrically arranged on two channel steel parts in the middle of the mounting base 101. The groove formed by two adjacent idler trough plates 4 can accommodate the end of the roller device 2; thus enabling the roller device to be horizontally placed on the mounting base 101; two groups of roller devices 2 are symmetrically arranged in the placing direction of the fan to form a support for the impeller to be installed. The two groups of roller assemblies 2 are adjusted to the appropriate working positions of the idler trough plates 4, thereby reasonably reducing the center of gravity of the fan impeller and avoiding the stability of the impeller placed vertically.

[0043] As Figure 4 and Figure 5As shown in the figure, the idler device 2 includes an idler 201 and a fixed seat 202; fixed seats 202 are arranged at both ends of the idler 201, and the fixed seats 202 are installed between the idler trough plates 4 on the installation base 101. A stop block is arranged on the outer side of the fixed seat 202, so that the fixed seat 202 will not move or deflect at the installation position; among them, the stop block and the reinforcing rib

[0044] The end of the idler 201 is rotatably connected to the fixed seat 202; the idler 201 can rotate flexibly, so as to ensure that the impeller rotates conveniently and facilitate the adjustment of the counterweight connection between the bolt holes in the circumferential direction and the main shaft; a wear-resistant bushing 203 is also arranged between the idler 201 and the fixed seat 202 to avoid direct contact wear between the idler 201 and the fixed seat 202.

[0045] As Figure 6 and Figure 8 shown in the figure, the clamping device 3 includes a clamping fixed seat 301 and an adjusting rod 302; a number of mounting holes 5 are arranged at intervals at the top of the mounting arm 102; the mounting arm 102 is bolted to the clamping fixed seat 301 through the mounting holes 5. The structural design of the multiple mounting holes 5 can adjust the clamping position of the clamping device 3 according to the size and model of the impeller to be installed, making the clamping and fixing position of the impeller more reasonable. The clamping fixed seat 301 and the adjusting rod 302 are connected in a rotational connection manner.

[0046] Among them, the clamping fixed seat 301 includes a clamping bottom plate 3011 and a threaded barrel 3012; the clamping bottom plate 3011 and the threaded barrel 3012 are of an integral structural design. The threaded barrel 3012 is arranged on the clamping bottom plate 3011, and an arc-shaped connection hole is arranged on the clamping bottom plate 3011. The clamping fixed seat 301 is fixed through the form of bolt connection between the arc-shaped connection hole and the mounting hole 5. At the same time, the arc-shaped connection hole can adjust the rotation angle of the entire clamping device 3 within a certain range to meet the problem that it is impossible to directly clamp and fix at the end when fixing a relatively small impeller.

[0047] Among them, the adjusting rod 302 includes a threaded rod 3021, a top pressing rod 3022 and an adjusting distance handwheel 3023; the adjustment range of the threaded rod 3021 is limited. If the clamping and fixing is directly carried out through the threaded rod 3021, the rotation distance required is relatively long. Therefore, the top pressing rod 3022 is designed. The top pressing rod 3022 is fixedly connected to the threaded rod 3021. The top pressing rod 3022 can be serially designed according to different models of the fan impeller, so as to save the adjustment and clamping distance and be more convenient; the threaded rod 3021 is threadedly connected to the clamping fixed seat 301; an adjusting distance handwheel 3023 is arranged at the other end of the threaded rod 3021 to facilitate the tightening operation.

[0048] As Figure 7 、 Figure 8As shown in FIGS. 9, a roller device 6 is further provided on the mounting frame 1. The roller device 6 is arranged at the four corner positions of the mounting base 101, and the roller device 6 can move up and down relative to the mounting frame 1; the roller device 6 includes a lifting ejector rod 601, a limiting frame 602, a roller assembly 603 and a top block 604. The lifting ejector rod 601 is threadedly connected to the mounting frame 1. The limiting frame 602 is fixedly installed on the mounting frame 1 through bolt members. The limiting frame 602 is composed of two limiting plates, and a long hole is formed in the limiting frame 602; the roller assembly 603 includes a connecting shaft rod and rollers. The connecting shaft rod passes through the long hole in the limiting frame 602, and a top block 604 is also arranged through the connecting shaft rod; the top block 604 is located between the two limiting plates, and rollers are arranged at both ends of the connecting shaft rod. The diameter of the roller is greater than the longitudinal length of the limiting frame 602. The lower end of the lifting ejector rod 601 abuts against the top block 604. Thus, when the lifting ejector rod 601 is rotated to press down the top block 604, the top block 604 drives the roller assembly 603 to move downward, and the mounting bracket is in a suspended state, so as to lift the entire mounting bracket; the movement of the mounting bracket is realized. On the contrary, when the device does not need to move, the lifting ejector rod 601 does not apply a force to the top block 604, so that the mounting frame 101 is stably placed on the ground.

[0049] The present application also provides an installation method for the installation bracket of the ventilator impeller, which mainly includes the following operation steps:

[0050] 1) Adjust the installation position of the idler device 2. According to the size and model of the impeller to be installed, adjust the placement position of the idler device 2 on the idler trough plate 4, so that the lowest end of the impeller to be installed does not contact the ground, reduce the distance between the support point and the center of gravity, reduce the center of gravity of the fan impeller, and avoid tilting; lift the fan impeller by a lifting device and place it between the two groups of idler devices 2.

[0051] 2) Adjust the installation position of the clamping device 3 on the installation hole 5, and adjust the rotation angle through the arc-shaped connection hole on the clamping bottom plate 3011. Select a suitable tightening rod 3022 to be connected to the threaded rod 3021, and rotate the distance-adjusting handwheel 3023 to realize the clamping and fixing of the fan impeller.

[0052] 3) After the fan impeller is clamped and fixed, horizontally hoist the fan main shaft, install and connect the fan impeller and the main shaft. When the impeller bolt holes in the circumferential direction are not aligned with the bolt holes of the main shaft, the impeller can be rotated for adjustment to facilitate the installation of the fastening bolts.

[0053] The above are only the preferred embodiments of the present application, and are not intended to limit the present application in other forms. Any person skilled in the art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present application, any simple modification or equivalent change made to the above embodiments based on the technical essence of the present application still belongs to the protection scope of the technical solution of the present application.

Claims

1. A mounting bracket for a ventilator impeller, characterized in that: It includes a mounting frame body (1), and the mounting frame body (1) includes a mounting base (101) and a mounting support arm (102); the mounting support arm (102) is fixedly arranged on the mounting base (101), and a roller device (2) is slidably arranged on the mounting base (101); a clamping device (3) is arranged on the mounting support arm (102). A plurality of roller groove plates (4) are arranged at intervals on the mounting base (101), and the roller groove plates (4) are symmetrically arranged on both sides of the mounting base (101); the ends of the roller device (2) are arranged between the adjacent roller groove plates (4) on one side. The roller device (2) includes a roller (201) and a fixing seat (202); fixing seats (202) are arranged at both ends of the roller (201), and the roller (201) is rotatably connected with the fixing seats (202); a wear-resistant bushing (203) is further arranged between the roller (201) and the fixing seats (202). The clamping device (3) includes a clamping fixing seat (301) and an adjusting rod (302); a plurality of mounting holes (5) are arranged at intervals at the top end of the mounting support arm (102); the mounting support arm (102) is bolted to the clamping fixing seat (301) through the mounting holes (5), and the adjusting rod (302) is rotatably mounted on the clamping fixing seat (301). The adjusting rod (302) includes a threaded rod (3021), a top pressing rod (3022) and a distance adjusting handwheel (3023); the threaded rod (3021) is threadedly connected with the clamping fixing seat (301); a top pressing rod (3022) is arranged at one end of the threaded rod (3021), and a distance adjusting handwheel (3023) is arranged at the other end. A roller device (6) is further arranged on the mounting frame body (1), and the roller device (6) can move up and down relative to the mounting frame body (1). The roller device (6) includes a lifting top rod (601), a limiting frame (602), a roller assembly (603) and a top block (604), the lifting top rod (601) is threadedly connected with the mounting frame body (1), the limiting frame (602) is fixedly connected to the mounting frame body (1), and the roller assembly (603) runs through and connects the limiting frame (602) and the top block (604); the lower end of the lifting top rod (601) pushes against the top block (604).

2. The installation bracket of a ventilator impeller according to claim 1, characterized in that: The clamping fixing seat (301) includes a clamping bottom plate (3011) and a threaded cylinder (3012); the clamping bottom plate (3011) and the threaded cylinder (3012) are of an integral structure, an arc-shaped connecting hole is arranged on the clamping bottom plate (3011), and the clamping bottom plate (3011) is bolted to the mounting support arm (102) through the arc-shaped connecting hole and the mounting hole (5).

3. A mounting method for a mounting bracket of a ventilator impeller as described in any one of claims 1-2, characterized in that, It includes the following operating steps: 1) Adjust the installation position of the roller device (2), hoist the fan impeller and place it on the roller device (2). 2) Adjust the position of the clamping device (3) and clamp and fix the fan impeller on the roller device (2). 3) Horizontally hoist the main shaft and install and connect the fan impeller with the main shaft.

4. The installation method of a fan impeller mounting bracket according to claim 3, characterized in that: When the roller device (2) bears the fan impeller, the lowest end of the fan impeller is in a suspended state.

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