CN217084065U - Roller type braking device with flexible elastic sheet for balancing machine - Google Patents
Roller type braking device with flexible elastic sheet for balancing machine Download PDFInfo
- Publication number
- CN217084065U CN217084065U CN202122895915.1U CN202122895915U CN217084065U CN 217084065 U CN217084065 U CN 217084065U CN 202122895915 U CN202122895915 U CN 202122895915U CN 217084065 U CN217084065 U CN 217084065U
- Authority
- CN
- China
- Prior art keywords
- fan
- roller
- guide rail
- brake
- connecting rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Testing Of Balance (AREA)
Abstract
The utility model relates to a roller type braking device with flexible elastic sheets for a balancing machine, which comprises a brake bracket fixed on the balancing machine, wherein a guide rail is laid on a platform at the top of the brake bracket, the extension direction of the guide rail is parallel to the axial direction of a fan to be tested, a connecting rod extending towards the fan to be tested is arranged on the guide rail in a sliding way, and the connecting rod is provided with a positioning mechanism fixed with the guide rail in a positioning way; the tail end of the connecting rod is provided with a roller mechanism, the rolling shaft of the roller mechanism is perpendicular to the axial direction of the fan to be tested, and the roller mechanism is provided with a roller surface which is used for rolling friction with the end surface of the fan impeller hub of the fan to be tested; the flexible elastic sheet is used for providing braking force, and the surface of the flexible elastic sheet abuts against the roller surface. The beneficial effects of the utility model are that to the brushless motor fan in fan levelling balance process, use the roller type brake equipment who has flexible shell fragment to brake, effectively shorten the brake time, improve the efficiency of fan school balance.
Description
Technical Field
The utility model relates to a fan balancing machine test instrument specifically is a roller type arresting gear that has flexible shell fragment that balancing machine was used.
Background
In the current balancing procedure of the brushless motor fan, when the rotating speed of the fan reaches 2000 rpm and an unbalanced point is recorded by a sensor, the brushless motor fan enters a power-off state, the fan cannot brake in time in the state and can only naturally stop by means of inertia, and the time required by the braking process is 30-40 s. In the whole leveling and balancing procedure, the braking process is generally repeated for 1-2 times, so that the time of a single procedure is seriously prolonged, and the working beat is influenced. In order to meet the CT time of the whole assembly line, the beat of the fan for correcting balance is set at 15 s/time, and the braking time is seriously overtime under the current state, so that the efficiency of correcting balance of the fan is influenced.
The current solution of choice for those skilled in the art in the process of motor fan leveling is to use either a disc type mechanical brake or a galvanic reverse brake. The disc type mechanical brake device has the following defects: in the installation process, the circle center of the brake disc and the circle center of the fan are required to be basically concentric, and the device is only suitable for the assembly line to produce a single fan and cannot frequently replace fans of different models. Since the same assembly line can produce fans of various models under normal conditions and the fans of different models are frequently replaced, the disc brake device is not suitable for the fan balancing procedure under the conditions. However, since the brushless motor is controlled to rotate by PWN waves, the brushless motor cannot be braked by the current reversal braking.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the not enough of prior art, solve the fan school balance braking difficult problem of brushless motor fan.
In order to achieve the purpose, the invention provides a roller type braking device with a flexible elastic sheet for a balancing machine, which comprises a brake support fixed on the balancing machine, wherein a guide rail is laid on a platform at the top of the brake support, the extension direction of the guide rail is parallel to the axial direction of a fan to be tested, a connecting rod extending towards the fan to be tested is arranged on the guide rail in a sliding manner, and the connecting rod is provided with a positioning mechanism fixedly positioned with the guide rail; the tail end of the connecting rod is provided with a roller mechanism, the rolling shaft of the roller mechanism is perpendicular to the axial direction of the fan to be tested, and the roller mechanism is provided with a roller surface which is used for rolling friction with the end surface of the fan impeller hub of the fan to be tested; the flexible elastic sheet is used for providing braking force, one end of the flexible elastic sheet is fixed to the shell of the roller mechanism, and the surface of the flexible elastic sheet abuts against the surface of the roller.
The form of the connection rod and the guide rail can be various, such as the most common form of the slide block and guide rail.
Preferably, the roller mechanism is fixedly clamped beside the connecting rod through a clamping structure arranged beside the roller mechanism.
Through the setting of pressing from both sides the structure, be convenient for whole dismouting, replacement.
Preferably, at least two screws extend beside the roller mechanism; the clamp structure is arranged on the screw rod in a penetrating mode, and the screw rod part penetrating out of the clamp structure is in threaded connection with a nut used for fixing the clamp structure in a positioning mode.
The nut mounting mode that this pointed to can be on pressing from both sides the structure both sides with the root screw rod on the spiro union nut respectively to make the position of pressing from both sides the structure on the screw rod fixed, further fixed the relative position of gyro wheel mechanism and connecting rod.
The clamp structure and the screw and nut arrangement thereof can realize the precise fine adjustment of the roller mechanism in the direction towards the fan to be measured, thereby adjusting the rolling friction force.
Preferably, the positioning mechanism is a cylinder fixed on the brake support, the moving piston running direction of the cylinder is parallel to the extending direction of the guide rail, and the moving piston of the cylinder is fixed with the connecting rod.
Preferably, the cylinder is externally connected to the air flow input device through an air flow regulating valve.
The air flow regulating valve on the air cylinder is used for regulating the speed of the air cylinder, and the regulation can be used for regulating the force of the wheel impacting the fan hub.
Preferably, the air flow regulating valve is a two-position four-way electromagnetic valve.
The two-position four-way electromagnetic valve can realize multi-gear control of reasonable division of the cylinder.
Preferably, both ends of the guide rail are fixed with stoppers for preventing the connecting rod from coming off.
Roller type arresting gear with flexible shell fragment, its advantage lies in: the brake wheel is controlled by the flexible elastic sheet, so that no hard brake trace or hard impact is generated on the contact surface of the brake wheel and the hub, and the corrected balance state of the fan is not damaged. Compared with a disc type mechanical brake, the roller type brake has the characteristics of simplicity and convenience in installation, short debugging time and the like.
The beneficial effects of the utility model are that to the brushless motor fan in fan levelling balance process, use the roller type brake equipment who has flexible shell fragment to brake, effectively shorten the brake time, improve the efficiency of fan school balance. The fan type brake device is suitable for being used on a balancing machine for frequently switching fan types, and the fan is quickly braked under the condition of not influencing the balance quantity of the fan, so that the process beat is ensured, and the production efficiency is improved.
Drawings
Fig. 1 is a top view of a roller type braking device with a flexible elastic sheet for a balancing machine according to the present invention;
fig. 2 is a schematic side view of a roller type braking device with a flexible elastic sheet for a balancing machine according to the present invention;
wherein:
1-brake support 2-guide rail 21-stop block
3-4-connecting rod 5-roller mechanism of fan to be tested
51-roller surface 6-flexible elastic sheet 7-clamp structure
8-screw 81-nut 9-cylinder
91-air flow regulating valve
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
The roller type braking device with the flexible elastic sheet for the balancing machine shown in fig. 1 to 2 comprises a brake support 1 fixed on the balancing machine, wherein a guide rail 2 is laid on a platform at the top of the brake support 1, the extending direction of the guide rail 2 is parallel to the axial direction of a fan 3 to be tested, a connecting rod 4 extending towards the fan 3 to be tested is arranged on the guide rail 2 in a sliding mode, and the connecting rod 4 is provided with a positioning mechanism fixedly positioned with the guide rail 2; the tail end of the connecting rod 4 is provided with a roller mechanism 5, the rolling shaft of the roller mechanism 5 is perpendicular to the axial direction of the fan 3 to be tested, and the roller mechanism 5 is provided with a roller surface 51 which is used for rolling friction with the end surface of the fan impeller hub of the fan 3 to be tested; a flexible elastic sheet 6 for providing a braking force is further provided, one end of the flexible elastic sheet 6 is fixed to the shell of the roller mechanism 5, and the surface of the flexible elastic sheet 6 abuts against the roller surface 51. And two ends of the guide rail 2 are fixed with stoppers 21 for preventing the connecting rod 4 from coming off.
The roller mechanism 5 is fixedly clamped beside the connecting rod 4 through a clamping structure 7 arranged beside. At least two screw rods 8 extend out of the side of the roller mechanism 5; the clamp structure 7 penetrates through the screw rods 8, and nuts 81 are respectively screwed on the same screw rods 8 on two sides of the clamp structure 7, so that the position of the clamp structure 7 on the screw rods 8 is fixed, and the relative positions of the roller mechanism 7 and the connecting rod 4 are further fixed.
The positioning mechanism is a cylinder 9 fixed on the brake support 2, the running direction of a moving piston of the cylinder 9 is parallel to the extending direction of the guide rail 2, and the moving piston of the cylinder 9 is fixed with the connecting rod 4. The cylinder 9 is connected to an air flow input device through an air flow regulating valve 91 to the outside. The air flow regulating valve 91 is a two-position four-way solenoid valve.
From another perspective, in the embodiment, the brake bracket 1 is installed on a cross beam of equipment inside the balancing machine, the air cylinder 9, the front and rear stoppers 21 and the guide rail 2 are directly installed on the brake bracket 1, and the slide block is installed on the guide rail 2. One end of the connecting rod 4 is installed on the sliding block, and the other end is installed with the clamp structure 7. A roller mechanism 5 with flexible spring blades 6 is mounted on the clamp structure 7.
The air pipe on the cylinder 9 is externally connected with a two-position four-way electromagnetic valve, and the electromagnetic valve signal is connected with a PLC standby signal port in the electrical appliance box of the balancing machine. The adjusting interface on the air cylinder 9 is used for adjusting the speed of the air cylinder, and the adjustment is used for adjusting the force of the wheel impacting the fan hub.
The front stop 21 is a movable stop, and can be rapidly moved according to the position of the fan and the size of the hub by matching with the adjustment of the clamp structure 7, so that the roller mechanism 5 is adjusted to the optimal position.
The flexible elastic sheet 6 is used for pressing the roller surface 51, so that the roller surface 51 always keeps proper force in the contact process with the wind impeller hub rotating at high speed, the wind impeller hub can be quickly stopped, and larger pressure cannot be generated to destroy the balance of the fan.
When the brushless motor fan balancing device is used, the roller type brake device with the flexible elastic sheet 6 is installed on the balancing machine, and after the brushless motor fan is in power failure after the balancing test is finished, the roller surface 51 is in contact with the impeller hub, so that rolling friction is generated, and the fan is rapidly stopped in a high-speed rotating state.
The equipment personnel install the roller type brake device with the flexible elastic sheet 6 on the balancing machine and connect the valve of the air cylinder 9. After an operator normally operates the balancing machine to test the fan, the fan loses power and enters inertial rotation. The two-position four-way electromagnetic valve can be controlled by the PLC, a time relay of the PLC starts to work, a signal is sent to the electromagnetic valve after timing is carried out for 10S, the electromagnetic valve supplies air to the air cylinder 9, the air cylinder 9 pulls the roller mechanism 5 to be slightly contacted with the fan impeller hub, and the roller surface 51 starts to rotate and keeps rolling friction with the fan impeller hub under the action of the flexible elastic sheet 6. And under the condition of ensuring that the balance of the fan is not changed, the mechanical braking time of the fan is 2-3 s. The PLC controls to send out a pulse signal, the electromagnetic valve is reversed, the air cylinder 9 enables the roller surface 51 to be separated from the fan impeller hub, and meanwhile, the balancing machine opens the door. An operator can take down the fan blade to carry out subsequent process machining. The beat of the whole brushless motor fan leveling process is controlled within 15 s.
While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the embodiments disclosed, and that various changes and modifications may be made, which are within the scope of the appended claims.
Claims (7)
1. A roller type braking device with a flexible elastic sheet for a balancing machine is characterized by comprising a brake support fixed on the balancing machine, wherein a guide rail is laid on a platform at the top of the brake support, the extending direction of the guide rail is parallel to the axial direction of a fan to be tested, a connecting rod extending towards the fan to be tested is arranged on the guide rail in a sliding mode, and the connecting rod is provided with a positioning mechanism fixedly positioned with the guide rail; the tail end of the connecting rod is provided with a roller mechanism, the rolling shaft of the roller mechanism is perpendicular to the axial direction of the fan to be tested, and the roller mechanism is provided with a roller surface which is used for rolling friction with the end surface of the fan impeller hub of the fan to be tested; the flexible elastic sheet is used for providing braking force, one end of the flexible elastic sheet is fixed to the shell of the roller mechanism, and the surface of the flexible elastic sheet abuts against the surface of the roller.
2. The roller brake assembly of claim 1, wherein said roller mechanism is fixedly clamped to said connecting rod by a side clamp structure.
3. The roller brake assembly according to claim 2, wherein at least two threaded rods extend alongside said roller mechanism; the clamp structure is arranged on the screw rod in a penetrating mode, and the screw rod part penetrating out of the clamp structure is in threaded connection with a nut used for fixing the clamp structure in a positioning mode.
4. The roller brake assembly according to claim 1, wherein the positioning mechanism is a cylinder fixed to the brake bracket, the moving piston of the cylinder runs parallel to the extension direction of the guide rail, and the moving piston of the cylinder is fixed to the connecting rod.
5. The roller brake assembly of claim 4, wherein the cylinder is externally connected to an air flow input through an air flow regulator valve.
6. The roller brake of claim 5, wherein the air flow regulating valve is a two-position, four-way solenoid valve.
7. The roller type brake apparatus according to claim 1, wherein stoppers for preventing the connecting rod from coming off are fixed to both ends of the guide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122895915.1U CN217084065U (en) | 2021-11-24 | 2021-11-24 | Roller type braking device with flexible elastic sheet for balancing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122895915.1U CN217084065U (en) | 2021-11-24 | 2021-11-24 | Roller type braking device with flexible elastic sheet for balancing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217084065U true CN217084065U (en) | 2022-07-29 |
Family
ID=82538176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122895915.1U Active CN217084065U (en) | 2021-11-24 | 2021-11-24 | Roller type braking device with flexible elastic sheet for balancing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217084065U (en) |
-
2021
- 2021-11-24 CN CN202122895915.1U patent/CN217084065U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN217084065U (en) | Roller type braking device with flexible elastic sheet for balancing machine | |
| CN108398207B (en) | Double-sided balancing machine | |
| CN201183118Y (en) | Adjustable directive wheel same track gap apparatus | |
| CN202494569U (en) | Test bench for testing wind power generator | |
| CN205496716U (en) | Multistation hydraulic pressure tapping machine | |
| CN113125171B (en) | Brake hose suspension durability test system | |
| CN210551030U (en) | Transmission chain adjusting platform of wind driven generator | |
| CN209427909U (en) | A kind of adjustable limiter of speed of wind pressure type | |
| CN217155673U (en) | Braking torque testing device of air pressure disc type brake | |
| CN220673141U (en) | Monitoring unit installation component for multipoint auxiliary positioning installation | |
| CN110261035B (en) | Multistage self-priming pump impeller online balancing device | |
| CN216596018U (en) | Limiting device for solar photovoltaic panel | |
| CN205559623U (en) | Fan hand brake device | |
| CN219131017U (en) | Tapping tool with adjustable hardware processing is with | |
| CN216955908U (en) | Civil engineering construction is with measuring device who has bearing structure | |
| CN220819985U (en) | Integrated algae monitoring and treating equipment | |
| CN212526525U (en) | Circular tube rotating device for single-shaft laser cutting | |
| CN216608821U (en) | Straight arm adjusting wire device | |
| CN216298034U (en) | Boring equipment for boring motor base | |
| CN220161426U (en) | Mechanism is confirmed to saw blade tooth point processing grinding machine origin | |
| CN220338010U (en) | Network server overhauls platform | |
| CN219533340U (en) | Servo motor load applying device | |
| CN215217470U (en) | Concentricity measuring device for rotating shaft of power tool turret | |
| CN220870020U (en) | Power takeoff convenient to install | |
| CN213748852U (en) | Convenient accurate gear motor capability test tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |