CN2693410Y - Device for displaying non-stage transmission curved saw rotary speed - Google Patents
Device for displaying non-stage transmission curved saw rotary speed Download PDFInfo
- Publication number
- CN2693410Y CN2693410Y CN 03270825 CN03270825U CN2693410Y CN 2693410 Y CN2693410 Y CN 2693410Y CN 03270825 CN03270825 CN 03270825 CN 03270825 U CN03270825 U CN 03270825U CN 2693410 Y CN2693410 Y CN 2693410Y
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- Prior art keywords
- saw
- motor
- circuit
- sweep
- display
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- Expired - Lifetime
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Abstract
The utility model relates to a device for displaying the non-stage transmission curved saw rotary speed, belonging to the technical field of curved saws. The device is arranged in the curved saw, and the device at least comprises a four-figure digital displayer installed on the front face of a base and displaying the rotary speed of an electric motor, a detection display circuit of the rotary speed of the electric motor connected with the four-figure digital displayer and a photoelectric sensing disk with a notch or a hole in the edge and installed on the shaft of the electric motor. The detection display circuit at least comprises photoelectric sensors installed on the two sides of the notch or the hole of the photoelectric sensing disk, a single chip computer connected with the photoelectric sensors, a drive circuit connected with the single chip computer and a power circuit for the power supply of the circuits, and the single chip computer and the drive circuit are connected with the four-figure digital displayer. The digital displayer is a four-figure nixie display indicator or a four-figure liquid crystal display device. The device can clearly, accurately and timely display the rotary speed of the electric motor, and the device is favorable to the improvement of the manufacturing precision and the production efficiency. The utility model can be widely used in the non-stage transmission curved saw.
Description
Technical field
The utility model belongs to the sweep-saw technical field, more specifically to the design of the numeric display unit of infinitely variable speeds sweep-saw rotating speed.
Background technology
The motor of traditional sweep-saw has only single speed, can not speed change.Also just there is no need to install the mensuration display unit of rotating speed.Not long ago, the applicant had released a kind of infinitely variable speeds sweep-saw, and the operator can be according to the free speed governing of desired rotating speed.But it does not install the mensuration display unit of rotating speed, and the operator can not know clearly current rotating speed when work.
The motor speed of infinitely variable speeds sweep-saw is the important parameter that the operator should know, is convenient to the operator and is selected according to the difference of part material.Rotating speed is not as showing intuitively, and the operator can only estimate by rule of thumb.This estimation varies with each individual, and is very inaccurate.This just processes particularly to sweep-saw saw that the saw processing of the degree of precision of strength member has brought difficulty, will inevitably reduce its production efficiency simultaneously.
Summary of the invention
The purpose of this utility model, just be to overcome above-mentioned shortcoming and defect, a kind of numeric display unit of infinitely variable speeds sweep-saw rotating speed is provided, and it can clear, accurately, immediately show motor speed, and then can improve the machining accuracy and the production efficiency of the processing of sweep-saw saw.
In order to achieve the above object, the utility model be installed in comprise base, be fixed on casing on the base, be installed in lower shake-changing arm on the casing and upper rocker arm, connection lower shake-changing arm and upper rocker arm rear end connecting rod, be fixed on workbench and motor on the base, be installed in eccentric wheel on the axle of motor, be installed in little axle on the sweep-saw of control circuit of the rocking bar between eccentric wheel and the lower shake-changing arm, the saw blade clamper that is installed in lower shake-changing arm and upper rocker arm front end, the saw blade stretcher that is installed in the upper rocker arm front end and motor.The detection display circuit of the motor speed which comprises at least 4-digit number display that the front that is installed in base can show rotating speed of motor, is connected and the photoelectric sensing dish that is installed in the jagged or hole of marginal belt on the axle of motor with the 4-digit number display.
The detection display circuit of motor speed comprises the breach that is installed in the photoelectric sensing dish or the photoelectric sensor of both sides, hole, the single-chip microcomputer that is connected with photoelectric sensor, the drive circuit that is connected with single-chip microcomputer at least and to the power circuit of above-mentioned circuit supply, single-chip microcomputer is connected with the 4-digit number display with drive circuit.
Photoelectric sensor straddles on the outer rim of photoelectric sensing dish.The one side emits beam, and opposite side receives light.During sweep-saw work, the axle of motor drives the photoelectric sensing dish and constantly rotates.The photoelectric sensing dish whenever rotates a circle, and its counting is just passed certain number of times (being hole or the breach number on the photoelectric sensing dish) by light with hole or breach, forms the light pulse of some.This light pulse number is the signal of telecommunication by conversion of photoelectric sensor and sends single-chip microcomputer to, finally is displayed on the 4-digit number display through single-chip microcomputer and drive circuit.Counting can be one with hole or breach, and photoelectric sensor whenever detects a light pulse and is a commentaries on classics; Counting also can be N (N is a positive integer) that is uniformly distributed along the circumference with hole or breach, and photoelectric sensor whenever detects N light pulse and is a commentaries on classics.
The 4-digit number display can be group of four figures tube display or four LCDs.Charactron display and LCD show clear, low price, and effect is fine.The rotating speed of general curve saw mostly is thousands of commentaries on classics most, and four demonstrations are enough, and are very reasonable.
Task of the present utility model comes to this and finishes.
The utility model provides a kind of can clear, accurately, immediately show infinitely variable speeds sweep-saw rotating speed, and then can improve the numeric display unit of the infinitely variable speeds sweep-saw rotating speed of machining accuracy and production efficiency.It can be widely used on the infinitely variable speeds sweep-saw.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the schematic diagram of the detection display circuit of motor speed.
The specific embodiment
The numeric display unit of 1. 1 kinds of infinitely variable speeds sweep-saws of embodiment rotating speed.As Fig. 1～shown in Figure 2.It is installed in comprise base 1, be fixed on casing 2 on the base 1, be installed in lower shake-changing arm and upper rocker arm 3 on the casing 2, connect lower shake-changing arm and upper rocker arm 3 rear ends connecting rod, be fixed on workbench 4 and motor on the base 1, be installed in eccentric wheel on the axle 5 of motor, be installed in little axle on the sweep-saw of control circuit of the rocking bar between eccentric wheel and the lower shake-changing arm, the saw blade clamper 6 that is installed in lower shake-changing arm and upper rocker arm 3 front ends, the saw blade stretcher that is installed in upper rocker arm 3 front ends and motor.The detection display circuit of the motor speed which comprises at least 4-digit number display 7 that the front that is installed in base 1 can show rotating speed of motor, is connected and the photoelectric sensing dish 8 that is installed in the jagged or hole of marginal belt on the axle 5 of motor with 4-digit number display 7.
Consult Fig. 2, the detection display circuit of motor speed comprises the breach that is installed in photoelectric sensing dish 8 or the photoelectric sensor 9 of both sides, hole, the single-chip microcomputer 10 that is connected with photoelectric sensor 9, the drive circuit 11 that is connected with single-chip microcomputer 10 and at least to the power circuit 12 of above-mentioned circuit supply.Single-chip microcomputer 10 is connected with 4-digit number display 7 with drive circuit 11.Single-chip microcomputer 10 also is connected with three buttons 13 and three light emitting diodes 14 thereof among Fig. 2, is respectively applied for the break-make of control, display power supply, the raising of rotating speed and the reduction of rotating speed.Circuit 15 is used for the speed governing of motor, and wherein 16 is motor, and 17 is FET, and 18 is photoelectrical coupler, 19 termination AC powers.4-digit number display 7 is a group of four figures tube display.
The numeric display unit of 2. 1 kinds of infinitely variable speeds sweep-saws of embodiment rotating speed.Its 4-digit number display 7 is four LCDs.Surplus with embodiment 1.
Embodiment 1～2 can clear, accurately, immediately show the motor speed of infinitely variable speeds sweep-saw, helps the raising of machining accuracy and production efficiency.It can be widely used on the infinitely variable speeds sweep-saw.
Claims (3)
1. the numeric display unit of an infinitely variable speeds sweep-saw rotating speed, it is installed in and comprises base, be fixed on the casing on the base, be installed in lower shake-changing arm and upper rocker arm on the casing, the connecting rod that connects lower shake-changing arm and upper rocker arm rear end, be fixed on workbench and motor on the base, be installed in motor the axle on eccentric wheel, with little rocking bar that is installed between eccentric wheel and the lower shake-changing arm, be installed in the saw blade clamper of lower shake-changing arm and upper rocker arm front end, be installed on the sweep-saw of control circuit of the saw blade stretcher of upper rocker arm front end and motor, it is characterized in which comprises at least the 4-digit number display that the front that is installed in base can show rotating speed of motor, the detection display circuit of the motor speed that is connected with the 4-digit number display and the photoelectric sensing dish that is installed in the jagged or hole of marginal belt on the axle of motor.
2. according to the numeric display unit of the described infinitely variable speeds sweep-saw of claim 1 rotating speed, the detection display circuit that it is characterized in that said motor speed comprises the breach that is installed in the photoelectric sensing dish or the photoelectric sensor of both sides, hole, the single-chip microcomputer that is connected with photoelectric sensor, the drive circuit that is connected with single-chip microcomputer at least and to the power circuit of above-mentioned circuit supply, single-chip microcomputer is connected with the 4-digit number display with drive circuit.
3. according to the numeric display unit of claim 1 or 2 described infinitely variable speeds sweep-saw rotating speeds, it is characterized in that said 4-digit number display is group of four figures tube display or four LCDs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03270825 CN2693410Y (en) | 2003-08-27 | 2003-08-27 | Device for displaying non-stage transmission curved saw rotary speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03270825 CN2693410Y (en) | 2003-08-27 | 2003-08-27 | Device for displaying non-stage transmission curved saw rotary speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2693410Y true CN2693410Y (en) | 2005-04-20 |
Family
ID=34755596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03270825 Expired - Lifetime CN2693410Y (en) | 2003-08-27 | 2003-08-27 | Device for displaying non-stage transmission curved saw rotary speed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2693410Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102026762A (en) * | 2008-05-14 | 2011-04-20 | 罗伯特.博世有限公司 | Power tool, especially hand-held power tool |
-
2003
- 2003-08-27 CN CN 03270825 patent/CN2693410Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102026762A (en) * | 2008-05-14 | 2011-04-20 | 罗伯特.博世有限公司 | Power tool, especially hand-held power tool |
| CN102026762B (en) * | 2008-05-14 | 2014-10-15 | 罗伯特.博世有限公司 | Hand-held power tool and method for operating the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130827 Granted publication date: 20050420 |