CN212479665U - Stepless speed regulating device of ventilation fan - Google Patents
Stepless speed regulating device of ventilation fan Download PDFInfo
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- CN212479665U CN212479665U CN202021203140.6U CN202021203140U CN212479665U CN 212479665 U CN212479665 U CN 212479665U CN 202021203140 U CN202021203140 U CN 202021203140U CN 212479665 U CN212479665 U CN 212479665U
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Abstract
The utility model discloses a ventilation fan's stepless speed adjusting device, concretely relates to ventilation fan field, including the fan case, one side of fan incasement chamber is provided with the blade, one side of blade sets up the transmission shaft, the opposite side of fan incasement chamber is provided with the supporting disk, the top and the bottom symmetry fixedly connected with bracing piece of supporting disk, the top and the bottom symmetry fixedly connected with connecting rod of supporting disk one side, the bottom of fan case opposite side is provided with the cushion cap, the middle part fixedly connected with control panel of cushion cap, the top fixed mounting of cushion cap has direct current motor, direct current motor's one end fixedly connected with axis of rotation, control panel and direct current motor electric connection. The utility model discloses, through the direct current motor who sets up, need not external functional module and can realize stepless speed regulation, greatly reduced the incidence of fan trouble to the speed governing characteristic is linear, and the change of rotational speed is very steady, does not have the sudden change problem.
Description
Technical Field
The utility model relates to a ventilation fan technical field, more specifically says, the utility model relates to a ventilation fan's stepless speed adjusting device.
Background
In poultry fan trade, the speed governing of original fan divide into two kinds of modes of pressure regulating speed governing and variable frequency speed governing, the external voltage regulator of pressure regulating speed governing fan, the external converter of variable frequency speed governing fan, external voltage regulator or converter belong to the functional module, because the functional module is external on the fan, therefore the emergence probability of fan trouble has been increased, and simultaneously, to pressure regulating speed governing fan, its speed governing characteristic is not linear, in certain section voltage range, there is the problem of sudden change in the fan rotational speed, moreover, the efficiency of pressure regulating speed governing fan is very low, power consumption is very big, the energy consumption ratio reduces along with the reduction of rotational speed.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above-mentioned defect of prior art, the embodiment of the utility model provides a ventilation fan's stepless speed regulation device, through the direct current motor who sets up, need not external functional module and can realize stepless speed regulation, greatly reduced the incidence of fan trouble to the speed governing characteristic is linear, and the change of rotational speed is very steady, does not have the sudden change problem, with the problem of proposing in solving above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a ventilation fan's stepless speed adjusting device, includes the fan case, one side of fan case inner chamber is provided with the blade, one side of blade sets up the transmission shaft, the opposite side of fan case inner chamber is provided with the supporting disk, the top and the bottom symmetry fixedly connected with bracing piece of supporting disk, the top and the bottom symmetry fixedly connected with connecting rod of supporting disk one side, the bottom of fan case opposite side is provided with the cushion cap, the middle part fixedly connected with control panel of cushion cap, the top fixed mounting of cushion cap has direct current motor, direct current motor's one end fixedly connected with axis of rotation, control panel and direct current motor electric connection, two constant head tanks have been seted up to the one end of transmission shaft, two locating levers of inner wall fixedly connected with of axis of rotation one.
In a preferred embodiment, the other end of the transmission shaft is connected with the blade through two positioning pins arranged crosswise.
In a preferred embodiment, the support disc is sleeved outside the middle of the transmission shaft, and the transmission shaft is rotatably connected with the wall body of the support disc through the first deep groove ball bearing.
In a preferred embodiment, one end of the support rod penetrates through the outer wall of the support plate and extends to the inside of the wall body of the support plate, the other end of the support rod is bent ninety degrees towards the inner wall of the other side of the fan box, and the other end of the support rod is fixedly connected to the inner wall of the other side of the fan box.
In a preferred embodiment, one end of each connecting rod, which is far away from the supporting disk, is fixedly connected to the inner wall of the other side of the fan box, the number of the connecting rods is not less than four, and the connecting rods are annularly arranged on one side of the supporting disk at equal intervals.
In a preferred embodiment, one end of the transmission shaft penetrates through the inner wall of the other side of the fan box and extends to the outside of the fan box, and the transmission shaft is rotatably connected with the wall body of the fan box through a second deep groove ball bearing.
In a preferred embodiment, the bearing platform is fixedly mounted on the outer wall of the fan box through bolts, and one end of the direct current motor is an output shaft.
In a preferred embodiment, the inner cavity of the rotating shaft is communicated with the outside from the other side of the rotating shaft, one end of the transmission shaft extends into the rotating shaft from an opening of the rotating shaft, the two positioning rods are arranged corresponding to the two positioning grooves, and the positioning rods are matched with the positioning grooves.
The utility model discloses a technological effect and advantage:
1. through the arranged direct current motor, stepless speed regulation can be realized without an external functional module, the occurrence rate of fan faults is greatly reduced, the speed regulation characteristic is linear, the change of the rotating speed is very stable, and the problem of sudden change does not exist;
2. through locating lever and the constant head tank joint that sets up, make the axis of rotation drive the transmission shaft and rotate stably, make the separation of transmission shaft and axis of rotation convenient simultaneously, conveniently take off direct current motor and clean the fan case.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is an enlarged view of a portion a in fig. 1 according to the present invention.
Fig. 3 is an enlarged view of the point B in fig. 1 according to the present invention.
Fig. 4 is a schematic structural diagram of the support plate of the present invention.
The reference signs are: 1 fan box, 2 blades, 3 transmission shafts, 4 positioning grooves, 5 positioning pins, 6 supporting disks, 7 first deep groove ball bearings, 8 supporting rods, 9 connecting rods, 10 second deep groove ball bearings, 11 bearing platforms, 12 control panels, 13 direct current motors, 14 rotating shafts and 15 positioning rods.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The stepless speed regulating device of the ventilation fan shown in the attached figures 1-4 comprises a fan box 1, one side of the inner cavity of the fan box 1 is provided with a blade 2, one side of the blade 2 is provided with a transmission shaft 3, the other side of the inner cavity of the fan box 1 is provided with a supporting disk 6, the top and the bottom of the supporting disk 6 are symmetrically and fixedly connected with supporting rods 8, the top and the bottom of one side of the supporting disk 6 are symmetrically and fixedly connected with connecting rods 9, the bottom of the other side of the fan box 1 is provided with a bearing platform 11, the middle part of the bearing platform 11 is fixedly connected with a control panel 12, the top of the bearing platform 11 is fixedly provided with a direct current motor 13, one end of the direct current motor 13 is fixedly connected with a rotating shaft 14, the control panel 12 is electrically connected with the direct current motor 13, the other end of, the wall body of transmission shaft 3 and supporting disk 6 is connected through the rotation of first deep groove ball bearing 7, the one end of bracing piece 8 runs through the outer wall of supporting disk 6 and extends to the inside of the 6 wall bodies of supporting disk, the other end of bracing piece 8 is right degree to the inner wall bending of 1 opposite side of fan case, the other end fixed connection of bracing piece 8 is on the inner wall of 1 opposite side of fan case, the one end fixed connection that the connecting rod 9 kept away from supporting disk 6 is on the inner wall of 1 opposite side of fan case, four are no less than to the quantity of connecting rod 9, connecting rod 9 sets up at one side annular equidistance of supporting disk 6, the one end of transmission shaft 3 runs through the inner wall of 1 opposite side of fan case and extends to the outside of fan case 1, transmission shaft 3 rotates through second deep groove ball bearing 10 with the wall body of fan case 1 and is connected, cushion.
The implementation mode is specifically as follows: through the direct current motor 13 that sets up, need not external functional module and can realize stepless speed regulation, greatly reduced the incidence of fan trouble, and the speed governing characteristic is linear, the change of rotational speed is very steady, there is not the sudden change problem, direct current motor 13 simultaneously, axis of rotation 14 is detachable construction with transmission shaft 3, it facilitates for the separation washing of fan case 1, and cushion cap 11 is the mode of bolt fastening, convenient dismantlement, avoid direct current motor 13 to intake the water damage, through the supporting disk 6 that sets up, first deep groove ball bearing 7, bracing piece 8, connecting rod 9, provide stable support for transmission shaft 3, make transmission shaft 3 rotate smoothly simultaneously.
As shown in fig. 3, the stepless speed regulation device of the ventilation fan further comprises two positioning grooves 4 formed in one end of the transmission shaft 3, two positioning rods 15 are fixedly connected to the inner wall of one side of the rotation shaft 14, the inner cavity of the rotation shaft 14 is communicated with the outside through the other side of the inner cavity of the rotation shaft, one end of the transmission shaft 3 extends into the rotation shaft 14 through an opening of the rotation shaft 14, the two positioning rods 15 are arranged corresponding to the two positioning grooves 4, and the positioning rods 15 are matched with the positioning grooves 4.
The implementation mode is specifically as follows: through locating lever 15 and the joint of constant head tank 4 that sets up, make axis of rotation 14 drive transmission shaft 3 and rotate stably, make transmission shaft 3 and axis of rotation 14's separation simultaneously facilitate, conveniently take off direct current motor 13 and clean fan case 1.
The utility model discloses the theory of operation:
referring to the attached drawings 1-4 of the specification, through the arranged direct current motor 13, stepless speed regulation can be realized without an external functional module, the occurrence rate of fan faults is greatly reduced, the speed regulation characteristic is linear, the change of the rotating speed is very stable, and the sudden change problem does not exist, meanwhile, the direct current motor 13, the rotating shaft 14 and the transmission shaft 3 are of detachable structures, convenience is provided for the separation and washing of the fan box 1, the bearing platform 11 is in a bolt fixing mode, convenience is brought to detachment, the damage caused by water inflow of the direct current motor 13 is avoided, stable support is provided for the transmission shaft 3 through the arranged supporting plate 6, the first deep groove ball bearing 7, the supporting rod 8 and the connecting rod 9, and meanwhile, the transmission shaft 3 can rotate;
referring to the attached drawing 3 of the specification, the rotating shaft 14 drives the transmission shaft 3 to rotate stably by clamping the positioning rod 15 and the positioning groove 4, and meanwhile, the transmission shaft 3 and the rotating shaft 14 are separated conveniently, and the direct current motor 13 is conveniently taken down to clean the fan box 1.
And finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a ventilation fan's stepless speed adjusting device, includes fan case (1), its characterized in that: the fan box is characterized in that a blade (2) is arranged on one side of an inner cavity of the fan box (1), a transmission shaft (3) is arranged on one side of the blade (2), a supporting disc (6) is arranged on the other side of the inner cavity of the fan box (1), supporting rods (8) are symmetrically and fixedly connected to the top and the bottom of the supporting disc (6), connecting rods (9) are symmetrically and fixedly connected to the top and the bottom of one side of the supporting disc (6), a bearing platform (11) is arranged on the bottom of the other side of the fan box (1), a control panel (12) is fixedly connected to the middle of the bearing platform (11), a direct current motor (13) is fixedly installed on the top of the bearing platform (11), a rotating shaft (14) is fixedly connected to one end of the direct current motor (13), and the control;
two locating grooves (4) are formed in one end of the transmission shaft (3), and two locating rods (15) are fixedly connected to the inner wall of one side of the rotating shaft (14).
2. The stepless speed regulation device of a ventilation fan according to claim 1, characterized in that: the other end of the transmission shaft (3) is connected with the blades (2) through two positioning pins (5) which are arranged in a cross manner.
3. The stepless speed regulation device of a ventilation fan according to claim 1, characterized in that: the supporting disc (6) is sleeved on the outer side of the middle of the transmission shaft (3), and the transmission shaft (3) is rotatably connected with the wall body of the supporting disc (6) through a first deep groove ball bearing (7).
4. The stepless speed regulation device of a ventilation fan according to claim 1, characterized in that: one end of the supporting rod (8) penetrates through the outer wall of the supporting disk (6) and extends to the inner wall of the wall body of the supporting disk (6), the other end of the supporting rod (8) bends ninety degrees towards the inner wall of the other side of the fan case (1), and the other end of the supporting rod (8) is fixedly connected to the inner wall of the other side of the fan case (1).
5. The stepless speed regulation device of a ventilation fan according to claim 1, characterized in that: one end of the connecting rod (9) far away from the supporting disk (6) is fixedly connected to the inner wall of the other side of the fan box (1), the number of the connecting rods (9) is not less than four, and the connecting rods (9) are arranged on one side of the supporting disk (6) in an annular and equidistant mode.
6. The stepless speed regulation device of a ventilation fan according to claim 1, characterized in that: one end of the transmission shaft (3) penetrates through the inner wall of the other side of the fan box (1) and extends to the outside of the fan box (1), and the transmission shaft (3) is rotatably connected with the wall body of the fan box (1) through a second deep groove ball bearing (10).
7. The stepless speed regulation device of a ventilation fan according to claim 1, characterized in that: the bearing platform (11) is fixedly installed on the outer wall of the fan box (1) through bolts, and one end of the direct current motor (13) is an output shaft.
8. The stepless speed regulation device of a ventilation fan according to claim 1, characterized in that: the inner cavity of the rotating shaft (14) is communicated with the outside through the other side of the inner cavity, one end of the transmission shaft (3) extends to the inside of the rotating shaft (14) through the opening of the rotating shaft (14), the two positioning rods (15) are arranged corresponding to the two positioning grooves (4), and the positioning rods (15) are matched with the positioning grooves (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021203140.6U CN212479665U (en) | 2020-06-24 | 2020-06-24 | Stepless speed regulating device of ventilation fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021203140.6U CN212479665U (en) | 2020-06-24 | 2020-06-24 | Stepless speed regulating device of ventilation fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212479665U true CN212479665U (en) | 2021-02-05 |
Family
ID=74412821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021203140.6U Active CN212479665U (en) | 2020-06-24 | 2020-06-24 | Stepless speed regulating device of ventilation fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212479665U (en) |
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2020
- 2020-06-24 CN CN202021203140.6U patent/CN212479665U/en active Active
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