CN219139435U

CN219139435U - Speed measuring device for fan

Info

Publication number: CN219139435U
Application number: CN202223531144.9U
Authority: CN
Inventors: 张希良
Original assignee: Nantong Divat Energy Saving Blower Co ltd
Current assignee: Nantong Divat Energy Saving Blower Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-06-06
Anticipated expiration: 2032-12-29

Abstract

The utility model discloses a speed measuring device for a fan, which relates to the technical field of fan equipment and comprises a detection box, wherein the detection box is internally provided with a speed measuring box, the bottom of the detection box is provided with a sliding groove, the inside of the sliding groove is rotatably provided with a threaded rod, the bottom of the speed measuring box is fixedly provided with a sliding block, the sliding block is in threaded connection with the threaded rod, one end of the threaded rod extends to the outer side of the detection box and is provided with a turntable, both sides of the speed measuring box are fixedly provided with guide blocks, the insides of both sides of the detection box are provided with guide grooves, the guide blocks are in sliding connection with the guide grooves, the inside of the speed measuring box is provided with a bearing, the middle part of the bearing is provided with a rotating shaft, and one end of the rotating shaft is fixedly provided with a clamping joint, and the speed measuring device has the following advantages: through spout, threaded rod, slider, carousel, guide block and guide slot cooperation, can make the box that tests the speed more stable when testing the speed to the fan, avoid appearing rocking the condition that leads to the speed measurement result inaccurate in the speed measurement process and appear.

Description

Speed measuring device for fan

Technical Field

The utility model relates to the technical field of fan equipment, in particular to a speed measuring device for a fan.

Background

The fan is a machine which relies on input mechanical energy to raise the pressure of gas and discharge the gas, and is a driven fluid machine. Centrifugal fans are widely used for ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and induced draft of boilers and industrial kilns; cooling and ventilation in air-conditioning devices and household appliances; drying and selecting grains; inflation and propulsion of wind tunnel wind source and air cushion ship, etc.

According to the speed measuring device of a fan of application number 202022267034.0, wherein fix through setting up the fixed jaw, rotate the axis of rotation with the fan and drive the rotation of connecting the platform through the rotation of fan, drive the rotation of bearing through the horizontal pole, speed sensor through setting up on the fixed bench tests the speed, the speed measurement result is comparatively accurate, through setting up spout, pulley and connecting rod, can make speed measuring device remove in the box, can be comparatively convenient carry the use, simple structure easily dismantles and changes.

However, the above-mentioned speed sensor has certain defect, drive horizontal pole and bearing and can produce certain vibrations when the fan rotates the in-process, and the device only supports the box body that tests the speed through spout and pulley, thereby can lead to the box body that tests the speed to rock between the box body that tests the speed in-process, thereby lead to the axle center dislocation, influence the rotational speed that tests the speed, thereby can't effectively test the speed, in addition, the device is fixed through fixed claw and fan pivot, if the displacement can cause certain fish tail to the fan axle appears in the fixed in-process, and in the fixed in-process with the pivot can not be accurate make fan pivot and horizontal pole axle center synchronous, also can influence the degree of accuracy that tests the speed, for this reason, we have proposed a speed sensor for the fan.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a speed measuring device for a fan, which solves the problems in the background art.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a speed sensor for fan, includes the detection box, the internally mounted of detection box has the box that tests the speed, the spout has been seted up to the bottom of detection box, the threaded rod is installed to the internal rotation of spout, the bottom fixed mounting of box that tests the speed has the slider, slider and threaded rod threaded connection, the carousel is installed to the outside that the one end of threaded rod extends to the detection box, the equal fixed mounting in both sides of box that tests the speed has the guide block, the guide slot has all been seted up to the inside of detection box both sides, guide block and guide slot sliding connection, the inside of box that tests the speed is provided with the bearing, the mid-mounting of bearing has the pivot, the one end fixed mounting of pivot has the joint.

Preferably, the inside rotation of joint installs two-way lead screw, two cover pieces are installed to the outside screw thread of two-way lead screw, one side fixed mounting of cover piece has the arc fixed plate, one side fixed mounting of arc fixed plate has the rubber slipmat, the inside of joint just is located one side fixed mounting of two-way lead screw has the guide arm, cover piece and guide arm sliding connection.

Preferably, the inside of measuring the speed box just is located one side of bearing and is provided with the subassembly that tests the speed, the inside at detecting box top is provided with the display screen, subassembly and the display screen electric connection test the speed.

Preferably, a rotary button is arranged at one end of the bidirectional screw rod extending to the outer side of the clamping connector.

Preferably, a hole matched with the threaded rod is formed in the slider.

Preferably, the speed measuring assembly is matched with a bearing.

The utility model provides a speed measuring device for a fan, which has the following beneficial effects:

1. this speed sensor for fan through spout, threaded rod, slider, carousel, guide block and guide slot cooperation, can make the box that tests the speed more stable when testing the speed to the fan, avoids appearing rocking the condition that leads to the speed measurement inaccurate in the speed measurement process to appear.

2. This speed sensor for fan, through joint, two-way lead screw, cover piece, arc fixed plate, rubber slipmat, guide arm and turn button cooperation, through rotating turn button and two-way lead screw with the fixed in-process of fan axle cooperation, drive two cover pieces simultaneously and remove to the middle part, alright be fixed with the fan axle through two arc fixed plates and rubber slipmat relative movement, the fan axle that makes that can be accurate aligns with the axle center of pivot and bearing to the effectual accuracy that has improved the speed measurement.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a top cross-sectional view of the present utility model;

FIG. 3 is a schematic view of a bayonet coupling according to the present utility model.

In the figure: 1. a detection box; 2. a speed measuring box; 3. a chute; 4. a threaded rod; 5. a slide block; 6. a turntable; 7. a guide block; 8. a guide groove; 9. a bearing; 10. a rotating shaft; 11. a clamping joint; 12. a two-way screw rod; 13. sleeving blocks; 14. an arc-shaped fixing plate; 15. a rubber anti-slip pad; 16. a guide rod; 17. a rotary knob; 18. a speed measuring component; 19. and a display screen.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1 to 3, the present utility model provides a technical solution: the utility model provides a speed sensor for fan, including detecting box 1, the internally mounted of detecting box 1 has the box 2 that tests the speed, the inside of box 2 and be located one side of bearing 9 and be provided with the subassembly 18 that tests the speed, the subassembly 18 that tests the speed cooperates with bearing 9, the inside at detecting box 1 top is provided with display screen 19, subassembly 18 that tests the speed is with display screen 19 electric connection, wherein the subassembly 18 that tests the speed is including the inductor that tests the speed, data collector, data analyzer and data transmitter, all mutually support, the main effect of inductor that tests the speed is used for the speed, the main effect of display screen 19 is used for showing the numerical value that tests the speed, but display screen 19 is the touch-sensitive screen.

The spout 3 has been seted up to the bottom of detecting box 1, the inside rotation of spout 3 is installed threaded rod 4, the bottom fixed mounting of box 2 that tests the speed has slider 5, slider 5 and threaded rod 4 threaded connection, the hole with threaded rod 4 complex is seted up in the inside of slider 5, carousel 6 is installed to the outside that the one end of threaded rod 4 extends to detecting box 1, guide block 7 is all fixed mounting in both sides of box 2 that tests the speed, guide slot 8 has all been seted up to the inside of detecting box 1 both sides, guide block 7 and guide slot 8 sliding connection, the inside of box 2 that tests the speed is provided with bearing 9, bearing 9's mid-mounting has pivot 10, the one end fixed mounting of pivot 10 has joint 11, wherein joint 11 one side seted up with fan axle complex fixed slot, through spout 3, threaded rod 4, slider 5, carousel 6, guide block 7 and guide slot 8 cooperate, can make box 2 tested the speed more stable when testing the fan, the speed the in-course appearance of testing the speed avoids appearing rocking and results inaccurate condition appears.

The inside rotation of joint 11 is installed two-way lead screw 12, two cover pieces 13 are installed to the outside screw thread of two-way lead screw 12, one side fixed mounting of cover piece 13 has arc fixed plate 14, one side fixed mounting of arc fixed plate 14 has rubber slipmat 15, the inside of joint 11 and the one side fixed mounting that is located two-way lead screw 12 have guide arm 16, cover piece 13 and guide arm 16 sliding connection, the turn button 17 is installed to the outside that one end of two-way lead screw 12 extends to joint 11, wherein joint 11, two-way lead screw 12, cover piece 13 not only can make fan axle and the axle center of pivot 10 align, can also cooperate fixedly with the fan axle of equidimension, the compatibility is high, convenient to use.

To sum up, when the speed measuring device for the fan is used, firstly, the threaded rod 4 is driven to rotate through the rotating turntable 6, the sliding block 5 is driven to move in the sliding groove 3 through the threaded rod 4, the speed measuring box 2 can be driven to move out of the detection box 1, then the fan shaft is inserted into the groove on one side of the clamping head 11, then the rotating knob 17 is rotated, the bidirectional screw rod 12 is driven to rotate through the rotating knob 17, the two sleeve blocks 13 can be moved relatively, the fan shaft is fixed through the arc-shaped fixing plate 14 and the rubber anti-slip pad 15, slipping and idling in the rotation process of the fan shaft can be effectively avoided through the rubber anti-slip pad 15, meanwhile, the fan shaft can be protected, damage to the fan shaft is avoided, the speed measuring can be started after the fan shaft is fixed, the fan is started, the clamping head 11 and the rotating shaft 10 are driven to rotate through the fan shaft, then the bearing 9 is driven to rotate, and then the speed measuring assembly 18 can be used for measuring the speed and the measured rotating speed is conveyed to the display screen 19 for displaying, and the speed measuring is completed.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a speed sensor for fan, includes detection box (1), its characterized in that: the utility model discloses a speed measuring box, including measuring box (1), spout (3) have been seted up to the internally mounted of measuring box (1), threaded rod (4) have been installed in the internal rotation of spout (3), the bottom fixed mounting of measuring box (2) has slider (5), slider (5) and threaded rod (4) threaded connection, carousel (6) are installed in the outside that one end of threaded rod (4) extends to measuring box (1), guide block (7) are all fixed mounting in the both sides of measuring box (2), guide slot (8) have all been seted up to the inside of measuring box (1) both sides, guide block (7) and guide slot (8) sliding connection, the inside of measuring box (2) is provided with bearing (9), mid-mounting of bearing (9) has pivot (10), the one end fixed mounting of pivot (10) has joint (11).

2. The speed measuring device for a fan according to claim 1, wherein: the inside rotation of joint (11) is installed two-way lead screw (12), two cover piece (13) are installed to the outside screw thread of two-way lead screw (12), one side fixed mounting of cover piece (13) has arc fixed plate (14), one side fixed mounting of arc fixed plate (14) has rubber slipmat (15), the inside of joint (11) and one side fixed mounting that is located two-way lead screw (12) have guide arm (16), cover piece (13) and guide arm (16) sliding connection.

3. The speed measuring device for a fan according to claim 1, wherein: the novel speed measuring box is characterized in that a speed measuring assembly (18) is arranged in the speed measuring box (2) and located on one side of the bearing (9), a display screen (19) is arranged in the top of the detecting box (1), and the speed measuring assembly (18) is electrically connected with the display screen (19).

4. The speed measuring device for a fan according to claim 2, wherein: one end of the bidirectional screw rod (12) extends to the outer side of the clamping connector (11) and is provided with a rotary knob (17).

5. The speed measuring device for a fan according to claim 1, wherein: the inside of the sliding block (5) is provided with a hole matched with the threaded rod (4).

6. A speed measuring device for a fan according to claim 3, wherein: the speed measuring assembly (18) is matched with the bearing (9).