An assembly measuring tool for blower

Abstract

The present invention discloses an assembly and measurement tool for a blower, including a base, an impeller fixing mechanism and a gap measuring mechanism. The impeller fixing mechanism is used to fix the impeller of the blower and make one side end face of the impeller fit with the end face of the fan wall panel. The gap measuring mechanism includes an axial adjustment component and an end of a sleeve component, which respectively contact the end face of the blower housing and the end face of the impeller to measure the gap. In the process of assembling the blower, the present invention sets an assembly and measurement tool, including an impeller fixing mechanism for fixing the impeller to prevent shaking and a gap measuring mechanism for measuring the gap between the impeller and the fan wall panel. The impeller fixing mechanism is mainly used to fix the impeller during the measurement and assembly process to stabilize it and prevent shaking; the gap measuring mechanism is mainly used to measure the total gap, and directly measure to replace the complex steps of multiple measurements and calculations, thereby improving efficiency and convenience.

Description

Technical Field

[0001] The invention relates to the technical field of blower measuring instruments, and in particular to an assembly measuring tool for a blower. Background Art

[0002] Roots blower is a type of positive displacement blower, generally used in gas delivery and pressurization systems in low-pressure situations. Roots blower has the main components of blower housing, impeller, fan wall panel, oil tank and muffler. Due to its simple structure, it has the advantage of easy manufacturing. However, during the assembly process of Roots blower, the gap between the impeller end face and the fan wall panel, as well as the meshing gap between the impellers are the main factors affecting the performance of the blower. During use, the impeller expands due to heat due to mutual friction. If the gap between the impeller end face and the fan wall panel is too small or there is no gap, the impeller will cause greater friction with the fan wall panel during rotation, which will cause the blower housing to overheat in a short time and cause the equipment to generate a fault alarm; long-term wear will cause metal debris between the impeller end face and the fan wall panel, and the metal debris will adhere to the surface of the impeller, causing the gap between the impellers to increase until it fails. Therefore, the gap adjustment between the impeller end face and the fan wall panel is the most important step in the entire assembly process.

[0003] In the prior art, the total gap between the impeller and the fan wall panel is usually obtained by measuring multiple data of the blower, and then the total gap is evenly distributed to the two ends of the impeller to complete the assembly. The specific operation process is to first measure the distance A between the two end surfaces of the blower housing, and then measure the distance B between the two end surfaces of the impeller. The difference between A and B is the total gap, and then the total gap is evenly divided to determine the gap size on each side, so as to determine the thickness of the gasket that needs to be increased. In addition, during the assembly process, due to the shaking of the impeller, the workers need to use a feeler gauge to repeatedly measure the gap during the assembly process to correct the error caused by the shaking of the impeller. The above operation process not only makes the measurement process more complicated, but also causes shaking during the assembly process, which is not convenient for assembly. Summary of the invention

[0004] The purpose of the present invention is to provide an assembly measuring tool for a blower to solve the technical problems in the prior art that not only the measurement process is relatively complicated, but also shaking occurs during the assembly process, making assembly inconvenient.

[0005] In order to solve the above technical problems, the present invention specifically provides the following technical solutions:

[0006] An assembly measuring tool for a blower, comprising a base for placing the blower housing, an impeller fixing mechanism is arranged at both ends of the base, and a gap measuring mechanism is arranged at one end of the base, the impeller fixing mechanism is used to fix the impeller of the blower and make one end face of the impeller fit with the end face of the fan wallboard, the gap measuring mechanism is arranged perpendicular to the end face of the blower housing, and the total gap between the impeller end face and the blower housing end face is measured to calculate the required gasket thickness on one side of the impeller;

[0007] Among them, the gap measuring mechanism includes an axial adjustment component with adjustable spacing and a sleeve assembly arranged on the axial adjustment component, the axial adjustment component is used to adjust the spacing between the sleeve assembly and the end face of the blower housing, the sleeve assembly is arranged perpendicular to the end face of the blower housing, and the end of the sleeve assembly respectively contacts the end face of the blower housing and the end face of the impeller to measure the gap.

[0008] As a preferred solution of the present invention, the sleeve assembly comprises an outer cylinder which is perpendicular to the blower housing and has one end which is open, the outer cylinder is arranged on the axial adjustment assembly, the outer cylinder passes through the axial adjustment assembly to abut against the end surface of the blower housing, a through hole is opened at the closed end of the outer cylinder, and a dial indicator is fixedly arranged in the through hole;

[0009] Wherein, a sliding inner cylinder is also arranged inside the outer cylinder, and when the inner cylinder is in the initial position, the distance between the end of the inner cylinder and the open end of the outer cylinder is set to be fixed, the dial indicator contacts the end of the inner cylinder, the outer cylinder moves toward the end face of the blower housing to make the inner cylinder contact the end face of the impeller, the inner cylinder is squeezed and contracts toward the inside of the outer cylinder and pushes the end of the dial indicator, and the gap width is measured by reading the reading of the dial indicator.

[0010] As a preferred solution of the present invention, the impeller fixing mechanism comprises a tooling base disposed at both ends of the base and detachably connected, the upper end surface of the tooling base is horizontally disposed and provided with a slide rail arranged along the axial direction, and a movable rotating shaft fixing frame is provided on the slide rails at both ends;

[0011] Among them, two rotating shaft fixing frames are provided at each end to match the number of impellers, and the rotating shaft fixing frame includes a rotating shaft sleeve part located at the upper end of the rotating shaft fixing frame and flush with the rotating shaft of the impeller, and the rotating shaft sleeve part is used to install and lock the rotating shaft of the impeller to prevent the impeller from shaking.

[0012] As a preferred solution of the present invention, the rotating shaft sleeve comprises a locking sleeve which is placed horizontally and coincides with the central axis of the impeller, one end of the locking sleeve is open and the other end is closed, a thread is provided on the outer wall of the locking sleeve close to the opening end, and a locking ring with matching threads is sleeved on the outer wall of the locking sleeve, one side of the locking sleeve opening faces the rotating shaft of the impeller, the locking sleeve is sleeved on the rotating shaft and the impeller is pushed so that the end of the rotating shaft contacts the closed end of the locking sleeve, and the locking ring is rotated to lock the rotating shaft.

[0013] As a preferred solution of the present invention, the rotating shaft fixing frame also includes a support frame connecting the locking sleeve and the slide rail, and a slide groove is provided at the lower end of the support frame to connect the slide rail. The cross-sections of the slide groove and the slide rail are both set to T-shape to prevent falling off, and the two support frames located on the same side are fixedly connected to maintain synchronous movement.

[0014] As a preferred solution of the present invention, the impeller fixing mechanism also includes a propulsion assembly arranged on the tooling base on one side, and the propulsion assembly and the sleeve assembly are arranged on the same side. The propulsion assembly pushes the impeller to one side so that the end face of the impeller contacts the fan wall panel, and the total gap between the end face of the impeller and the end face of the blower casing is measured by adjusting the sleeve assembly.

[0015] As a preferred solution of the present invention, the propulsion assembly includes a threaded rod placed parallel to the slide rail and one end of which is in contact with the side wall of the support frame. The threaded rod is installed on the tooling base through a bracket, and a through threaded hole is provided on the bracket to match the threaded rod. A crank is installed at the other end of the threaded rod, and the crank is rotated to move the threaded rod and press the support frame.

[0016] As a preferred solution of the present invention, a compression spring is arranged inside the outer cylinder, and the compression spring is located inside the outer cylinder, and two ends of the compression spring respectively contact the ends of the outer cylinder and the inner cylinder, so that the inner cylinder obtains potential energy to move toward the initial position, and a flange portion is arranged on the outer circumferential wall of the inner cylinder, and the diameter of the flange portion matches the inner diameter of the outer cylinder to avoid shaking of the inner cylinder, and an end cover is arranged at the end of the outer cylinder, and a circular hole is opened on the end cover to allow the inner cylinder to pass through.

[0017] As a preferred solution of the present invention, the axial adjustment assembly is arranged on the side wall of the support frame and is located on a side close to the blower housing. The axial adjustment assembly includes a guide rod vertically arranged on the side wall of the support frame, and a sliding fixing clamp is arranged on the guide rod. The fixing clamp is used to clamp the outer cylinder, and the fixing clamp moves along the guide rod so that the outer cylinder contacts the end face of the blower housing.

[0018] As a preferred solution of the present invention, the guide rod is detachably mounted on the side wall of the support frame via a guide rod seat, wherein the inner wall profile of the fixing clamp matches the outer wall profile of the outer cylinder to stably clamp the outer cylinder.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] In the process of assembling the blower, the present invention sets an assembly measurement tool, including an impeller fixing mechanism for fixing the impeller to prevent shaking and a gap measuring mechanism for measuring the gap between the impeller and the fan wall panel. The impeller fixing mechanism is mainly used to fix the impeller during the measurement and assembly process to stabilize it and prevent shaking; the gap measuring mechanism is mainly used to measure the total gap, and directly measure to replace the complex steps of multiple measurements and calculations, thereby improving efficiency and convenience.

[0021] The clearance measuring mechanism includes an axial adjustment assembly and a sleeve assembly. The sleeve assembly is provided with an inner cylinder and an outer cylinder to respectively contact the end face of the impeller and the end face of the blower housing. The distance difference between the inner cylinder and the outer cylinder is measured by a dial indicator to calculate the clearance between the end face of the impeller and the end face of the blower. It should be pointed out that during the measurement process, one side of the impeller needs to contact the fan wall panel, so that the sleeve assembly can measure the total clearance.

[0022] The axial adjustment assembly is used to adjust the distance between the sleeve assembly and the end face of the blower housing, and includes a guide rod and a fixing clamp. The fixing clamp clamps and fixes the outer cylinder, and then pushes the fixing frame to slide on the guide rod, so that the end of the outer cylinder finally contacts the end face of the blower housing.

[0023] The impeller fixing mechanism includes a detachable tooling base, on which a shaft fixing frame and a propulsion assembly are respectively mounted. The shaft fixing frame is used to fix the shaft of the impeller to avoid shaking, so as to facilitate fixing the impeller during assembly.

[0024] The propulsion component is suitable for both the measurement process and the assembly process. Through the propulsion component, the end face of one side of the impeller is in contact with the fan wall panel, which is convenient for measuring the total gap and adding shaft sleeves, washers and other parts to the impeller. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0026] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention.

[0027] Figure 2 It is an overall top view of an embodiment of the present invention.

[0028] Figure 3 For the embodiment of the present invention Figure 1 Enlarged view of I.

[0029] Figure 4 It is a cross-sectional view of embodiment AA of the present invention.

[0030] Figure 5 It is a schematic structural diagram of a sleeve assembly according to an embodiment of the present invention.

[0031] The numbers in the figure represent the following:

[0032] 1. Base; 2. Impeller fixing mechanism; 3. Gap measuring mechanism;

[0033] 110. Placement groove; 210. Tool base; 211. Slide rail; 220. Rotating shaft fixing frame; 230. Rotating shaft sleeve; 240. Locking sleeve; 241. Locking ring; 250. Support frame; 251. Slide groove; 260. Propulsion assembly; 261. Threaded rod; 262. Crank handle; 263. Bracket; 310. Axial adjustment assembly; 311. Guide rod; 312. Fixing clamp; 320. Sleeve assembly; 321. Outer cylinder; 322. Through hole; 323. Inner cylinder; 324. End cover; 325. Flange; 326. Compression spring; 327. Dial indicator. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] like Figures 1 to 5As shown, the present invention provides an assembly measuring tool for a blower, comprising a base 1 for placing the blower housing, an impeller fixing mechanism 2 is arranged at both ends of the base 1, and a gap measuring mechanism 3 is arranged at one end of the base 1, the impeller fixing mechanism 2 is used to fix the impeller of the blower and make one side end face of the impeller fit with the end face of the fan wall plate, the gap measuring mechanism 3 is arranged perpendicular to the end face of the blower housing, and the total gap between the end face of the impeller and the end face of the blower housing is measured to calculate the gap. The required gasket thickness on one side of the impeller, wherein the gap measuring mechanism 3 includes an axial adjustment component 310 with adjustable spacing and a sleeve component 320 arranged on the axial adjustment component 310, the axial adjustment component 310 is used to adjust the spacing between the sleeve component 320 and the end face of the blower housing, the sleeve component 320 is arranged perpendicular to the end face of the blower housing, when the ends of the sleeve component 320 respectively contact the end face of the blower housing and the end face of the impeller to measure the gap.

[0036] A placement groove 110 is provided on the upper surface of the base 1 for placing the blower housing, and bolts are provided in the placement groove 110 for fixing. There are certain requirements for the horizontality of the placement groove 110, and the blower housing should be kept level as a whole after being placed on the base 1.

[0037] The impeller fixing mechanism 2 is arranged at both ends of the base 1, so as to support the rotating shaft part of the impeller, so that the rotating axis of the impeller remains horizontal, avoiding deflection during the assembly process and affecting the final assembly effect.

[0038] It should be noted that the two ends of the Roots blower are the gear side and the power input side, and the two shafts on the gear side are of the same length; the two shafts on the power input side are the active shaft and the driven shaft, and the active shaft requires an external motor or other drive device, so the length is longer than the driven shaft. Among them, the gap measurement mechanism 3 is located at one end of the gear side.

[0039] After the blower housing is installed on the base 1, the fan wall panel on the power input side needs to be installed first, and then the impeller shaft is fixed. The fan wall panel on the gear side needs to be installed after the total gap is measured.

[0040] In short, in the process of assembling the blower, the present invention sets an assembly measurement tool, including an impeller fixing mechanism 2 for fixing the impeller to prevent shaking and a gap measuring mechanism 3 for measuring the gap between the impeller and the fan wall panel. The impeller fixing mechanism 2 is mainly used to fix the impeller during the measurement and assembly process to stabilize it and prevent shaking; the gap measuring mechanism 3 is mainly used to measure the total gap, and directly measure to replace the complex steps of multiple measurements and calculations, thereby improving efficiency and convenience.

[0041] Further, the sleeve assembly 320 includes an outer cylinder 321 which is perpendicular to the blower housing and has one end set to be open, the outer cylinder 321 is set on the axial adjustment assembly 310, the outer cylinder 321 passes through the axial adjustment assembly 310 to abut against the end surface of the blower housing, a through hole 322 is opened at the closed end of the outer cylinder 321, a dial indicator 327 is fixedly set in the through hole 322, wherein a sliding inner cylinder 323 is also set inside the outer cylinder 321, and When the inner cylinder 323 is in the initial position, the distance between the end of the inner cylinder 323 and the open end of the outer cylinder 321 is set to be fixed, the dial indicator 327 contacts the end of the inner cylinder 323, and the outer cylinder 321 moves toward the end face of the blower housing to make the inner cylinder 323 contact the end face of the impeller. The inner cylinder 323 is squeezed and contracts toward the inside of the outer cylinder 321 and pushes the end of the dial indicator 327. The gap width is measured by reading the reading of the dial indicator 327.

[0042] Furthermore, a compression spring 326 is provided inside the outer cylinder 321, and the compression spring 326 is located inside the outer cylinder 321, and the two ends of the compression spring 326 respectively contact the ends of the outer cylinder 321 and the inner cylinder 323, so that the inner cylinder 323 obtains the potential energy to move toward the initial position, and a flange portion 325 is provided on the outer peripheral wall of the inner cylinder 323, and the diameter of the flange portion 325 matches the inner diameter of the outer cylinder 321 to prevent the inner cylinder 323 from shaking, and an end cover 324 is provided at the end of the outer cylinder 321, and a circular hole is opened on the end cover 324 to allow the inner cylinder 323 to pass through. The flatness of the end face of the end cover 324 on the side facing the blower housing is 0.005 mm, so as to ensure that the end cover 324 is flush with the end face of the housing. The end cover 324 is configured to be in the shape of a flange, which can increase the contact area with the end surface of the shell; the end cover 324 closes the open end of the outer cylinder 321, which can prevent dust and impurities from entering the inner cavity of the outer cylinder 321, thereby avoiding affecting the measurement accuracy.

[0043] In the design, when the inner cylinder 323 is located at the initial position, the distance between the end of the inner cylinder 323 and the end cover 324 is 4 mm.

[0044] Furthermore, the impeller fixing mechanism 2 includes a tooling base 210 which is arranged at both ends of the base 1 and is detachably connected. The upper end surface of the tooling base 210 is horizontally arranged and is provided with a slide rail 211 arranged along the axial direction. A movable shaft fixing frame 220 is provided on the slide rail 211 at both ends, wherein two shaft fixing frames 220 are provided at each end to match the number of impellers. The shaft fixing frame 220 includes a shaft sleeve 230 located at the upper end of the shaft fixing frame 220 and flush with the shaft of the impeller. The shaft sleeve 230 is used to install and lock the shaft of the impeller to prevent the impeller from shaking.

[0045] The rotating shaft sleeve 230 includes a locking sleeve 240 which is placed horizontally and coincides with the central axis of the impeller. One end of the locking sleeve 240 is open and the other end is closed. A thread is provided on the outer wall of the locking sleeve 240 close to the open end, and a locking ring 241 with matching threads is sleeved on the outer wall of the locking sleeve 240. The open side of the locking sleeve 240 faces the rotating shaft of the impeller. The locking sleeve 240 is sleeved on the rotating shaft and the impeller is pushed so that the end of the rotating shaft contacts the closed end of the locking sleeve 240. The locking ring 241 is rotated to lock the rotating shaft.

[0046] It should be noted that the two rotating shafts on the power input side are of different lengths, so both ends of the locking sleeve 240 used to fix the driving rotating shaft are set to be open to allow the driving rotating shaft to pass through.

[0047] Furthermore, the shaft fixing frame 220 also includes a support frame 250 connecting the locking sleeve 240 and the slide rail 211, and a slide groove 251 is provided at the lower end of the support frame 250 to connect the slide rail 211. The cross-sections of the slide groove 251 and the slide rail 211 are both set to T-shaped to prevent falling off, wherein the two support frames 250 located on the same side are fixedly connected to maintain synchronous movement. Ensuring the synchronous movement of the two impellers can keep the gap between the end faces of the two impellers and the fan wall panel consistent, and in the process of adjusting the gap, the efficiency can be improved and the cumbersome process caused by individual adjustment can be avoided.

[0048] Furthermore, the impeller fixing mechanism 2 also includes a propulsion assembly 260 arranged on the tooling base 210 on one side, and the propulsion assembly 260 and the sleeve assembly 320 are arranged on the same side. The propulsion assembly 260 pushes the impeller to move to one side so that the end face of the impeller contacts the fan wall panel, and the total gap between the end face of the impeller and the end face of the blower casing is measured by adjusting the sleeve assembly 320.

[0049] The propulsion assembly 260 includes a threaded rod 261 placed parallel to the slide rail 211 and one end of which is in contact with the side wall of the support frame 250. The threaded rod 261 is installed on the tooling base 210 through a bracket 263. A through threaded hole is provided on the bracket 263 to match the threaded rod 261. A crank 262 is installed at the other end of the threaded rod 261. The crank 262 is rotated to move the threaded rod 261 and press the support frame 250.

[0050] The propulsion assembly 260 has multiple functions:

[0051] First, the pushing assembly 260 is used to push the support frame 250 directly so that one side of the impeller is close to the end surface of the fan wall panel, thereby facilitating the measurement of the total gap.

[0052] Second, during the assembly process, a feeler gauge of the same thickness as the reserved gap is inserted between the fan wall panel and the impeller end face, and then the threaded rod 261 is rotated to make the impeller close to the feeler gauge; at this time, the position of the fixed threaded rod 261 can serve as a distance calibration in the subsequent tooling process. When the support frame 250 is close to the end of the threaded rod 261, it means that the actual gap of the impeller in the casing is approximately equal to the reserved gap required by the technical requirements.

[0053] Furthermore, the axial adjustment assembly 310 is arranged on the side wall of the support frame 250 and is located on a side close to the blower housing. The axial adjustment assembly 310 includes a guide rod 311 vertically arranged on the side wall of the support frame 250, and a sliding fixing clamp 312 is arranged on the guide rod 311. The fixing clamp 312 is used to clamp the outer cylinder 321. The fixing clamp 312 moves along the guide rod 311 to make the outer cylinder 321 contact with the end face of the blower housing.

[0054] The guide rod 311 is detachably mounted on the side wall of the support frame 250 through the guide rod 311 seat, the guide rod 311 seat is fixedly arranged on the side wall of the support frame 250, and the guide rod 311 is connected to the guide rod 311 seat by threads. The inner wall profile of the fixing clamp 312 matches the outer wall profile of the outer cylinder 321 to stably clamp the outer cylinder 321.

[0055] The specific use process of the present invention is:

[0056] Step 1: Place the blower housing in the placement groove 110 of the base 1 and fix the blower housing with bolts, and install the tooling base 210 at both ends of the base 1;

[0057] Step 2: Place the two impellers into the blower housing and install the blower wall plate on the power input side onto the housing;

[0058] Step 3: Move the support frame 250, and respectively sleeve the locking sleeves 240 on both sides onto the ends of the rotating shaft, hold the shaft neck of the impeller, make the ends of the rotating shaft touch the bottom of the locking sleeve 240, and tighten the locking ring 241 to complete the fixation;

[0059] Step 4: After the guide rod 311 is rotated and installed into the guide rod 311 seat, the fixing frame is sleeved on the guide rod 311, and then the outer cylinder 321 is fixed by the fixing clamp 312, and the outer disk of the dial indicator 327 is adjusted to make the reading 0;

[0060] Step 5: Move the fixing clamp 312 to make the upper end cover 324 of the outer cylinder 321 fit tightly against the end surface of the shell, then read the reading of the dial indicator 327, and subtract the reading value from the initial spacing 4mm to obtain the final total gap, so as to calculate the thickness of the gasket;

[0061] Step 6: After the measurement is completed, remove the gap measuring mechanism 3, then loosen the locking sleeve 240, and install the fan wall panel on the gear side on the blower housing.

[0062] In summary, the gap measuring mechanism 3 includes an axial adjustment component 310 and a sleeve component 320. The sleeve component 320 is provided with an inner cylinder 323 and an outer cylinder 321 to respectively contact the end face of the impeller and the end face of the blower housing. The distance difference between the inner cylinder 323 and the outer cylinder 321 is measured by using a dial indicator 327 to calculate the gap between the end face of the impeller and the end face of the blower. It should be pointed out that during the measurement process, one side of the impeller needs to contact the fan wallboard, so that the sleeve component 320 can measure the total gap.

[0063] The axial adjustment assembly 310 is used to adjust the distance between the sleeve assembly 320 and the end face of the blower housing, and includes a guide rod 311 and a fixing clamp 312. The fixing clamp 312 clamps and fixes the outer cylinder 321, and then pushes the fixing frame to slide on the guide rod 311, so that the end of the outer cylinder 321 finally contacts the end face of the blower housing.

[0064] The impeller fixing mechanism 2 includes a detachable tooling base 210, on which a shaft fixing frame 220 and a propulsion assembly 260 are respectively mounted. The shaft fixing frame 220 is used to fix the shaft of the impeller to avoid shaking, so as to facilitate fixing the impeller during assembly.

[0065] The propulsion assembly 260 is suitable for both the measurement process and the assembly process. Through the propulsion assembly 260, the end face of one side of the impeller contacts the fan wall panel, which is convenient for measuring the total gap and for adding shaft sleeves, washers and other parts to the impeller.

[0066] The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and protection scope of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present application.

Claims

1. An assembly measuring tool for a blower, characterized in that: The invention comprises a base (1) for placing the blower housing, an impeller fixing mechanism (2) being arranged at both ends of the base (1), and a gap measuring mechanism (3) being arranged at one end of the base (1), the impeller fixing mechanism (2) being used to fix the impeller of the blower and to make one end face of the impeller fit with the end face of the fan wall panel, the gap measuring mechanism (3) being arranged perpendicular to the end face of the blower housing, and calculating the required gasket thickness of one side of the impeller by measuring the total gap between the end face of the impeller and the end face of the blower housing; The gap measuring mechanism (3) comprises an axial adjustment component (310) with adjustable spacing and a sleeve component (320) arranged on the axial adjustment component (310), the axial adjustment component (310) being used to adjust the spacing between the sleeve component (320) and the end surface of the blower housing, the sleeve component (320) being arranged perpendicular to the end surface of the blower housing, and the ends of the sleeve component (320) respectively contact the end surface of the blower housing and the end surface of the impeller to measure the gap; The impeller fixing mechanism (2) comprises a tooling base (210) arranged at both ends of the base (1) and detachably connected, the upper end surface of the tooling base (210) being arranged horizontally and provided with a slide rail (211) arranged along the axial direction, and a movable rotating shaft fixing frame (220) being provided on the slide rails (211) at both ends; Wherein, two rotating shaft fixing frames (220) are provided at each end to match the number of the impellers, and the rotating shaft fixing frame (220) comprises a rotating shaft sleeve fitting (230) located at the upper end of the rotating shaft fixing frame (220) and flush with the rotating shaft of the impeller, and the rotating shaft sleeve fitting (230) is used to install and lock the rotating shaft of the impeller to prevent the impeller from shaking; The rotating shaft sleeve (230) comprises a locking sleeve (240) placed horizontally and coinciding with the central axis of the impeller. One end of the locking sleeve (240) is open and the other end is closed. A thread is provided on the outer wall of the locking sleeve (240) near the open end, and a locking ring (241) with matching threads is sleeved on the outer wall of the locking sleeve (240). One side of the opening of the locking sleeve (240) faces the rotating shaft of the impeller. The locking sleeve (240) is sleeved on the rotating shaft and the end of the rotating shaft is abutted against the closed end of the locking sleeve (240) by pushing the impeller. The locking ring (241) is rotated to lock the rotating shaft.

2. The blower assembly measuring tool according to claim 1, characterized in that: The sleeve assembly (320) comprises an outer cylinder (321) which is perpendicular to the blower housing and has one end which is open; the outer cylinder (321) is arranged on the axial adjustment assembly (310); the outer cylinder (321) passes through the axial adjustment assembly (310) to contact the end surface of the blower housing; a through hole (322) is provided at the closed end of the outer cylinder (321); a dial indicator (327) is fixedly arranged in the through hole (322); A sliding inner cylinder (323) is also provided inside the outer cylinder (321), and when the inner cylinder (323) is located at an initial position, the distance between the end of the inner cylinder (323) and the open end of the outer cylinder (321) is set to be fixed, the dial indicator (327) is in contact with the end of the inner cylinder (323), the outer cylinder (321) moves toward the end surface of the blower housing so that the inner cylinder (323) contacts the end surface of the impeller, the inner cylinder (323) is squeezed and contracts toward the inside of the outer cylinder (321) and pushes the end of the dial indicator (327), and the gap width is measured by reading the reading of the dial indicator (327).

3. The blower assembly measuring tool according to claim 2, characterized in that: The rotating shaft fixing frame (220) further comprises a supporting frame (250) connecting the locking sleeve (240) and the slide rail (211); a slide groove (251) is provided at the lower end of the supporting frame (250) for connecting to the slide rail (211); the cross-sections of the slide groove (251) and the slide rail (211) are both T-shaped to prevent falling off; wherein two supporting frames (250) located on the same side are fixedly connected to maintain synchronous movement.

4. The blower assembly measuring tool according to claim 3, characterized in that: The impeller fixing mechanism (2) further comprises a propulsion assembly (260) arranged on the tooling base (210) on one side, the propulsion assembly (260) and the sleeve assembly (320) being arranged on the same side, the propulsion assembly (260) pushing the impeller to move to one side so that the end face of the impeller contacts the fan wall panel, and the total clearance between the end face of the impeller and the end face of the blower casing is measured by adjusting the sleeve assembly (320).

5. The blower assembly measuring tool according to claim 4, characterized in that: The propulsion assembly (260) comprises a threaded rod (261) placed parallel to the slide rail (211) and having one end abutting against a side wall of the support frame (250); the threaded rod (261) is mounted on the tooling base (210) via a bracket (263); a threaded hole is provided on the bracket (263) to match the threaded rod (261); a crank (262) is mounted on the other end of the threaded rod (261); the crank (262) is rotated to move the threaded rod (261) and press the support frame (250).

6. The blower assembly measuring tool according to claim 5, characterized in that: A compression spring (326) is arranged inside the outer cylinder (321). The compression spring (326) is located inside the outer cylinder (321), and its two ends respectively contact the ends of the outer cylinder (321) and the inner cylinder (323), so that the inner cylinder (323) obtains potential energy to move toward an initial position. A flange portion (325) is arranged on the outer peripheral wall of the inner cylinder (323). The diameter of the flange portion (325) matches the inner diameter of the outer cylinder (321) to prevent the inner cylinder (323) from shaking. An end cover (324) is arranged at the end of the outer cylinder (321), and a circular hole is opened on the end cover (324) to allow the inner cylinder (323) to pass through.

7. The blower assembly measuring tool according to claim 6, characterized in that: The axial adjustment assembly (310) is arranged on the side wall of the support frame (250) and is located on a side close to the blower housing. The axial adjustment assembly (310) comprises a guide rod (311) vertically arranged on the side wall of the support frame (250). A sliding fixing clamp (312) is arranged on the guide rod (311). The fixing clamp (312) is used to clamp the outer cylinder (321). The fixing clamp (312) moves along the guide rod (311) so that the outer cylinder (321) contacts the end surface of the blower housing.

8. The blower assembly measuring tool according to claim 7, characterized in that: The guide rod (311) is detachably mounted on the side wall of the support frame (250) via a guide rod seat, wherein the inner wall profile of the fixing clamp (312) matches the outer wall profile of the outer cylinder (321) to stably clamp the outer cylinder (321).

Images