Centrifugal fan detection device

Abstract

The utility model relates to the related technical field of fan detection, in particular to a centrifugal fan detection device, which comprises a base, a driving part mounted in the center of the top end of the base, a first rotating rod mounted at the top end of the driving part, a second rotating rod mounted at the top end of the first rotating rod, and a transmission connection between the top end of the second rotating rod and the center of an impeller body. Movable blocks are arranged on the two sides of the top end of the base through movable grooves, frame plates are installed at the top ends of the movable blocks, pressure sensors are installed at the tops of the frame plates, clamping frames are installed at the ends of the pressure sensors through installation plates, and shells of different impeller bodies are clamped by replacing different clamping frames. The driving piece, the first rotating rod and the second rotating rod are matched to drive the impeller body to operate, the use stability of the impeller body is detected through the value of the pressure sensor, and operation is convenient and fast.

Description

TECHNICAL FIELD

[0001] The utility model relates to fan detection related technical field, concretely is centrifugal fan detection device. BACKGROUND

[0002] Centrifugal fan is relied on inputted mechanical energy, improves gas pressure and sends away gas, and it is a kind of driven fluid machinery.

[0003] Centrifugal fan in production or long-term use, its impeller can exist the problem of wear and tear and lead to imbalance, and then it is easy to produce larger noise in use, or produce jitter, influence use effect, so it needs to detect and calibrate impeller balance, but the majority of impeller balance detection calibration device on the market has the problem of poor installation detection convenience, is not convenient for quick detection the working condition of impeller, and the fixing effect of impeller body is poor, influence detection accuracy, for this, the technical personnel in the art propose a centrifugal fan detection device to solve the problems raised in the above background. CONTENT OF UTILITY MODEL

[0004] The utility model aims at providing a centrifugal fan detection device to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A centrifugal fan detection device, including base, the top central of base is installed with driving piece, the top output end of driving piece is installed with first rotating rod, the top end of first rotating rod is connected with installation sleeve, the bottom end of second rotating rod is installed in installation sleeve, the top end of second rotating rod is connected with the central transmission of impeller body, the both sides of top end of base are provided with movable slot, movable block is arranged in movable slot, the position of movable block in movable slot is adjustable, the top end of movable block is installed with frame plate, the top of two frame plates is installed with pressure sensor close to each other one end, the close to each other one end of two pressure sensors is connected with mounting plate, the close to each other one end of two mounting plates is detachably installed with clamping frame, the inner circumferential shape size of clamping frame corresponds with the outer circumferential shape size of impeller body, and clamping frame is used to clamping and fixing the side of impeller body.

[0007] As a further scheme of the utility model: movable slot is rotatably connected with threaded rod, the end outer wall of base is installed with steering wheel, the one end of steering wheel is connected with threaded rod, the middle part of movable block is connected with threaded rod with screw thread cooperation, and the outer wall of movable block is slidably attached with the inner wall of movable slot.

[0008] As a further scheme of the utility model: the lateral portion of the frame plate is provided with a reinforcing plate, the top end of the reinforcing plate is installed on the upper outer wall of the frame plate through first fixing bolts, and the bottom end of the reinforcing plate is installed on the top end of the movable block through first fixing bolts.

[0009] As a further scheme of the utility model: the top end of the base is centrally provided with a damping seat, and the driving member is installed in the damping seat.

[0010] As a further scheme of the utility model: the two sides of the mounting sleeve are laterally provided with first cylindrical holes, the bottom of the second rotating rod is laterally provided with a second cylindrical hole, and the first cylindrical hole and the second cylindrical hole are jointly provided with third fixing bolts.

[0011] As a further scheme of the utility model: the inner periphery of the clamping frame is provided with an antiskid pad made of rubber material.

[0012] The utility model has the advantages that: the device drives the first rotating rod and the second rotating rod to rotate through the driving member, and then drives the blades in the impeller body to rotate, the two clamping frames clamp the two side shells of the impeller body, when the impeller body works, the pressure sensors detect the pressure on the two sides of the impeller body, when the difference between the values in the two pressure sensors is large, it indicates that the working stability of the impeller body is poor, the clamping frame can quickly clamp and disassemble the impeller body, is convenient and fast to use, has high clamping stability for the impeller body, can clamp and fix different impeller bodies by replacing the clamping frame, has high use flexibility, and has stronger practicability. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the overall internal structure front view of the utility model embodiment.

[0014] Figure 2 It is the structure schematic view of the reinforcing plate in the utility model embodiment.

[0015] Figure 3 It is Figure 1 The enlarged schematic view of A part in

[0016] Figure 4 It is Figure 1 The enlarged schematic view of B part in

[0017] In the figure: 1, base; 2, shock pad; 3, driving part; 4, first rotating rod; 5, mounting sleeve; 6, second rotating rod; 7, impeller body; 8, movable slot; 9, threaded rod; 10, movable block; 11, handlebar; 12, shelf plate; 13, reinforcing plate; 14, first fixing bolt; 15, mounting hole; 16, pressure sensor; 17, mounting plate; 18, clamping frame; 19, second fixing bolt; 20, non-slip pad; 21, first cylindrical hole; 22, second cylindrical hole; 23, third fixing bolt. DETAILED DESCRIPTION

[0018] The technical scheme of the utility model will be described in further detail in connection with the specific embodiments.

[0019] Embodiment one: please refer to Figures 1 to 4 A centrifugal fan detection device, including base 1, the top end central mounting of base 1 has driving part 3, the top output end of driving part 3 is installed with first rotating rod 4, the top end of first rotating rod 4 is connected with the mounting sleeve 5 of installation, the bottom end of second rotating rod 6 is installed in the mounting sleeve 5, the top end of second rotating rod 6 is connected with the central transmission of impeller body 7, the top end both sides of base 1 are provided with movable slot 8, movable block 10 is arranged in movable slot 8, the position of movable block 10 in movable slot 8 is adjustable, the top end of movable block 10 is installed with shelf plate 12, two shelf plates 12 are installed with pressure sensor 16 on the top of the mutually close one end, the mutually close one end of two pressure sensors 16 is connected with mounting plate 17, the mutually close one end of two mounting plates 17 is detachably installed with clamping frame 18, the inner circumferential shape size of clamping frame 18 corresponds with the outer circumferential shape size of impeller body 7, clamping frame 18 is used for clamping and fixing the shell side of impeller body 7, driving part 3 and pressure sensor 16 are connected with external control circuit.

[0020] Please refer to Figure 1 , Figure 2The threaded rod 9 is rotatably connected in the movable slot 8, the end outer wall of the base 1 is provided with a rotating handle 11, the rotating handle 11 is connected with one end of the threaded rod 9, the middle part of the movable block 10 is threadedly connected with the threaded rod 9, the outer wall of the movable block 10 is slidably attached to the inner wall of the movable slot 8, the side part of the shelf plate 12 is provided with a reinforcing plate 13, the top end of the reinforcing plate 13 is installed on the upper outer side wall of the shelf plate 12 through the first fixing bolt 14, the bottom end of the reinforcing plate 13 is installed on the top end of the movable block 10 through the first fixing bolt 14, the reinforcing plate 13 forms a triangular stable structure to improve the use stability of the shelf plate 12, the end part of the reinforcing plate 13 is provided with the mounting hole 15 matched with the first fixing bolt 14, the top end of the base 1 is provided with the damping seat 2, the driving part 3 is installed in the damping seat 2, the damping seat 2 is used for damping treatment of the driving part 3, and the driving part 3 is selected as a driving motor to reduce the influence of vibration of the driving part 3 on the detection result.

[0021] Embodiment two: refer to Figure 1 、 Figure 3 On the basis of embodiment one, the two sides of the mounting sleeve 5 are transversely provided with the first cylindrical hole 21, the bottom of the second rotating rod 6 is transversely provided with the second cylindrical hole 22, and the first cylindrical hole 21 and the second cylindrical hole 22 are jointly provided with the third fixing bolt 23, after the bottom end of the first rotating rod 4 is inserted into the mounting sleeve 5, the third fixing bolt 23 is installed to fix the bottom end of the second rotating rod 6 into the mounting sleeve 5.

[0022] Please refer to Figure 1 、 Figure 4 The clamping frame 18 is in a circular arc shape, the inner periphery of the clamping frame 18 is provided with the anti-skid pad 20, the anti-skid pad 20 is made of rubber material, and the mounting plate 17 is installed on the outer wall of the clamping frame 18 through the second fixing bolt 19.

[0023] Working principle: in use, the top end of the second rotating rod 6 is inserted into the center of the impeller body 7 to serve as the transmission shaft of the impeller body 7, the connection between the second rotating rod 6 and the fan blades in the impeller body 7 can be achieved by pin connection or other connection methods, then the bottom end of the second rotating rod 6 is installed into the mounting sleeve 5 and fixed, rotating the handle 11 drives the threaded rod 9 to rotate, and then drives the movable block 10 to move, and then drives the frame plate 12 to move, and then drives the two clamping frames 18 to move close to each other to clamp the shell side of the impeller body 7, then start the driving piece 3 to drive the first rotating rod 4 and the second rotating rod 6 to rotate, and then drive the fan blades in the impeller body 7 to rotate, the force borne by the two clamping frames 18 is detected by the pressure sensor 16, if the values of the two pressure sensors 16 are very small, it shows that the use stability of the detected impeller body 7 is high, if the values of the two pressure sensors 16 are very large, it shows that the use stability of the detected impeller body 7 is poor, and if the values of the two pressure sensors 16 differ greatly, it shows that the structural center symmetry effect in the detected impeller body 7 is poor.

Claims

1. A centrifugal fan testing device, comprising a base, characterized in that, A driving component is installed at the center of the top of the base. A first rotating rod is installed at the top output end of the driving component. A mounting sleeve is connected to the top of the first rotating rod. The bottom end of a second rotating rod is installed inside the mounting sleeve. The top of the second rotating rod is connected to the center of the impeller body. Movable grooves are provided on both sides of the top of the base. Movable blocks are provided in the movable grooves. The position of the movable blocks in the movable grooves is adjustable. A frame plate is installed on the top of the movable blocks. Pressure sensors are installed at the top of the two frame plates that are close to each other. Mounting plates are connected to the top of the two pressure sensors that are close to each other. A clamping frame is detachably installed at the top of the two mounting plates that are close to each other. The inner shape and size of the clamping frame correspond to the outer shape and size of the impeller body. The clamping frame is used to clamp and fix the side of the impeller body.

2. The centrifugal fan testing device according to claim 1, characterized in that, A threaded rod is rotatably connected inside the movable groove. A handle is installed on the outer wall of the base. The handle is connected to one end of the threaded rod. The middle part of the movable block is threadedly connected to the threaded rod. The outer wall of the movable block slides against the inner wall of the movable groove.

3. The centrifugal fan testing device according to claim 2, characterized in that, The side of the frame is provided with a reinforcing plate. The top end of the reinforcing plate is installed on the upper outer wall of the frame by a first fixing bolt, and the bottom end of the reinforcing plate is installed on the top end of the movable block by a first fixing bolt.

4. The centrifugal fan testing device according to claim 1, characterized in that, A shock-absorbing seat is installed at the top center of the base, and the driving component is installed inside the shock-absorbing seat.

5. A centrifugal fan testing device according to claim 1, characterized in that, The mounting sleeve has a first cylindrical hole on each side, and the bottom of the second rotating rod has a second cylindrical hole on the side. A third fixing bolt is installed in both the first cylindrical hole and the second cylindrical hole.

6. The centrifugal fan testing device according to claim 1, characterized in that, The inner circumference of the clamping frame is provided with an anti-slip pad, which is made of rubber.

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