CN204434220U - A kind of bidirectional speed governing sensor - Google Patents
A kind of bidirectional speed governing sensor Download PDFInfo
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- CN204434220U CN204434220U CN201420804166.4U CN201420804166U CN204434220U CN 204434220 U CN204434220 U CN 204434220U CN 201420804166 U CN201420804166 U CN 201420804166U CN 204434220 U CN204434220 U CN 204434220U
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- photoelectric switch
- photoconductive cell
- tensile axis
- baffle
- mouth
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Abstract
The utility model belongs to pallet fork speed adjusting technique field, be specifically related to a kind of bidirectional speed governing sensor, comprise the through hole that Gong tensile axis (02) that tensile axis (02), camera bellows (01) and casing are offered passes, the upper end of described tensile axis (02) is connected with vehicle operating bar, lower end mounting block tabula rasa (06) of described tensile axis (02), be furnished with photoconductive cell (S2) near baffle (06), the opposite side direction of baffle (06) be furnished with light source (07); The upper and lower of described photoconductive cell (S2) is upwards furnished with the first photoelectric switch (S1) and the second photoelectric switch (S3) respectively, the mouth of photoconductive cell (S2) is connected with the input end of voltage gain circuit (08), and the mouth of the first photoelectric switch (S1) that described photoconductive cell (S2) upper and lower is provided with, the second photoelectric switch (S3) and voltage gain circuit (08) is all connected with the input end of vehicle control device (04).The utility model solves the frequent replacing of existing sensor existence, the problem of debugging, and volume is little, and cost is lower, relatively good with the compatibility of fork truck.
Description
Technical field
The utility model belongs to pallet fork speed adjusting technique field, is specifically related to a kind of bidirectional speed governing sensor.
Background technology
The realization of pallet fork landing speed-regulating function is still at the sensor using adjustable potentiometer formula, and potential device easily loses adjustable function because multiple rotary weares and teares, and therefore exists and needs the frequent problem changed, debug sensor.So both delay the use of user, turn increase cost.In prior art, also there is the bidirectional speed governing sensor being changed to principle of the height ordinary telegram pressure utilizing hall sensor to coordinate with magnet to produce, although solve the problem of frequent replacing, debugging, but along with the enhancing of fork truck precise treatment degree, the mutual interference between magnetic field also becomes a very important problem.Need to develop a speed governing sensor that can overcome the above problems for this reason.
Utility model content
The utility model is in order to solve the problems of the technologies described above, provide a kind of bidirectional speed governing sensor, eliminate the interference of magnetic field to peripheral equipment, also the frequent replacing of potentiometric transducer existence, the problem of debugging is solved, and structure simple, be easy to processing, easy to use, be applicable to most fork truck.For achieving the above object, the utility model have employed following technical scheme: a kind of bidirectional speed governing sensor, comprise the through hole that Gong tensile axis 02 that tensile axis 02, camera bellows 01 and casing are offered passes, the upper end of described tensile axis 02 is connected with vehicle operating bar, the lower end mounting block tabula rasa 06 of described tensile axis 02, be furnished with photoconductive cell S2 near baffle 06, the opposite side direction of baffle 06 is furnished with light source 07; The upper and lower of described photoconductive cell S2 is upwards furnished with the first photoelectric switch S1 and the second photoelectric switch S3 respectively, the mouth of photoconductive cell S2 is connected with the input end of voltage gain circuit 08, and the mouth of the first photoelectric switch S1 that described photoconductive cell S2 upper and lower is provided with, the second photoelectric switch S3 and voltage gain circuit 08 is all connected with the input end of vehicle control device 04.
Be provided with opaque baffle plate between described light source 07 and baffle 06, light source 07 is encapsulated in one end of casing by baffle plate, described baffle plate has light tank 03.
Further, described light tank 03 is bar shaped, and described baffle 06, photoconductive cell S2, the first photoelectric switch S1, the second photoelectric switch S3 and light source 07 are oppositely disposed in the both sides of light tank 03.
3 pin of described first photoelectric switch S1 and the second photoelectric switch S3 are mouth, and the first photoelectric switch S1 output hoists voltage signal to vehicle control device 04, and the second photoelectric switch S3 exports reduced voltage signal to vehicle control device 04; 1 pin of the first photoelectric switch S1 and the second photoelectric switch S3 is input end, is all connected to the mouth of power supply 05.
Described voltage gain circuit 08 comprises voltage follower U1,1 pin of described photoconductive cell S2 connects the normal phase input end of voltage follower U1 and the input end of power supply 05, the inverting input of voltage follower U1 is connected with its mouth by resistance R1, the inverting input of voltage follower U1 is also connected with 3 pin of photoconductive cell S2 by resistance R2, and voltage follower U1 output speed voltage signal is to vehicle control device 04.
Described tensile axis 02 is arranged with Compress Spring 09.
Compared with prior art, the utility model has following beneficial effect:
(1) in the utility model, baffle, photoconductive cell, photoelectric switch and light source are oppositely disposed in the both sides of light tank, by baffle to photoconductive cell, the blocking of photoelectric switch, change light intensity, and then the change of high and low level voltage in change loop, control the bidirectional speed governing of pallet fork, eliminate the interference of magnetic field to peripheral equipment, also solve the frequent replacing of potentiometric transducer existence, the problem of debugging;
(2) the utility model small volume, cost is lower, long service life, is applicable to most of forklift lifting decline speed governing sensor, and structure simple, be easy to processing, easy to use;
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is schematic circuit diagram of the present utility model;
In figure: 01-camera bellows, 02-tensile axis, 03-light tank, 04-vehicle control device, 05-power supply, 06-baffle, 07-light source, 08-voltage gain circuit, 09-Compress Spring, S1-first photoelectric switch, S2-photoconductive cell, S3-second photoelectric switch, U1-voltage follower.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further described:
As shown in Figure 1, a kind of bidirectional speed governing sensor, comprise the through hole that Gong tensile axis 02 that tensile axis 02, camera bellows 01 and casing are offered passes, the upper end of described tensile axis 02 is connected with vehicle operating bar, the lower end mounting block tabula rasa 06 of described tensile axis 02, described tensile axis 02 is arranged with Compress Spring 09.Be furnished with photoconductive cell S2 near baffle 06, the opposite side direction of baffle 06 is furnished with light source 07; The upper and lower of described photoconductive cell S2 is upwards furnished with the first photoelectric switch S1 and the second photoelectric switch S3 respectively, the mouth of photoconductive cell S2 is connected with the input end of voltage gain circuit 08, and the mouth of the first photoelectric switch S1 that described photoconductive cell S2 upper and lower is provided with, the second photoelectric switch S3 and voltage gain circuit 08 is all connected with the input end of vehicle control device 04.Opaque baffle plate is provided with between described light source 07 and baffle 06, light source 07 is encapsulated in one end of casing by baffle plate, described baffle plate has the light tank 03 of bar shaped, described baffle 06, photoconductive cell S2, the first photoelectric switch S1, the second photoelectric switch S3 and light source 07 are oppositely disposed in the both sides of light tank 03.
As shown in Figure 2,3 pin of described first photoelectric switch S1 and the second photoelectric switch S3 are mouth, and the first photoelectric switch S1 output hoists voltage signal to vehicle control device 04, and the second photoelectric switch S3 exports reduced voltage signal to vehicle control device 04; 1 pin of the first photoelectric switch S1 and the second photoelectric switch S3 is input end, is all connected to the mouth of power supply 05.Described voltage gain circuit 08 comprises voltage follower U1,1 pin of described photoconductive cell S2 connects the normal phase input end of voltage follower U1 and the input end of power supply 05, the inverting input of voltage follower U1 is connected with its mouth by resistance R1, the inverting input of voltage follower U1 is also connected with 3 pin of photoconductive cell S2 by resistance R2, and voltage follower U1 output speed voltage signal is to vehicle control device 04.
During use, when tensile axis 02 upward movement handled by control lever, tensile axis 02 drives baffle 06 to move up, the light of light source 07 is radiated on photoconductive cell S2 by light tank 03, and move light intensity by increasing along with on baffle 06, photoconductive cell S2 resistance, by subtracting, adjusts through resistance R1, R2, R3 and voltage follower U1, the velocity voltage signal Uo of output linearity.Meanwhile, the light intensity on the first photoelectric switch S1 surface weakens to switch closed, and output low level hoists voltage signal to vehicle control device 04, and vehicle control device comprehensive speed voltage signal Uo and the voltage signal that hoists control hoisting and lifting velocity of pallet fork.
On the contrary, when control lever manipulation tensile axis 02 moves downward, tensile axis 02 drives baffle 06 to move down, the light of light source 07 is radiated on photoconductive cell S2 by light tank 03, and successively decrease along with the light intensity that moves down of baffle 06, photoconductive cell S2 resistance, by increasing, adjusts through resistance R1, R2, R3 and voltage follower U1, the velocity voltage signal Uo of output linearity.Meanwhile, the light intensity on the first photoelectric switch S1 surface weakens to switch and closes, output low level reduced voltage signal to vehicle control device 04, the decline of vehicle control device comprehensive speed voltage signal Uo and reduced voltage signal control pallet fork and descending speed.
Above embodiment is not limited only to protection domain of the present utility model, and all amendments of carrying out based on basic thought of the present utility model or variation all belong to protection domain of the present utility model.
Claims (6)
1. a bidirectional speed governing sensor, comprise the through hole that Gong tensile axis (02) that tensile axis (02), camera bellows (01) and casing are offered passes, the upper end of described tensile axis (02) is connected with vehicle operating bar, it is characterized in that: lower end mounting block tabula rasa (06) of described tensile axis (02), be furnished with photoconductive cell (S2) near baffle (06), the opposite side direction of baffle (06) be furnished with light source (07); The upper and lower of described photoconductive cell (S2) is upwards furnished with the first photoelectric switch (S1) and the second photoelectric switch (S3) respectively, the mouth of photoconductive cell (S2) is connected with the input end of voltage gain circuit (08), and the mouth of the first photoelectric switch (S1) that described photoconductive cell (S2) upper and lower is provided with, the second photoelectric switch (S3) and voltage gain circuit (08) is all connected with the input end of vehicle control device (04).
2. a kind of bidirectional speed governing sensor according to claim 1, it is characterized in that: between described light source (07) and baffle (06), be provided with opaque baffle plate, light source (07) is encapsulated in one end of casing by baffle plate, described baffle plate has light tank (03).
3. a kind of bidirectional speed governing sensor according to claim 2, it is characterized in that: described light tank (03) is bar shaped, described baffle (06), photoconductive cell (S2), the first photoelectric switch (S1), the second photoelectric switch (S3) and light source (07) are oppositely disposed in the both sides of light tank (03).
4. a kind of bidirectional speed governing sensor according to claim 1, it is characterized in that: 3 pin of described first photoelectric switch (S1) and the second photoelectric switch (S3) are mouth, and the first photoelectric switch (S1) output hoists voltage signal to vehicle control device (04), the second photoelectric switch (S3) exports reduced voltage signal to vehicle control device (04); 1 pin of the first photoelectric switch (S1) and the second photoelectric switch (S3) is input end, is all connected to the mouth of power supply (05).
5. a kind of bidirectional speed governing sensor according to claim 1, it is characterized in that: described voltage gain circuit (08) comprises voltage follower (U1), 1 pin of described photoconductive cell (S2) connects the normal phase input end of voltage follower (U1) and the input end of power supply (05), the inverting input of voltage follower (U1) is connected with its mouth by resistance R1, the inverting input of voltage follower (U1) is also connected with 3 pin of photoconductive cell (S2) by resistance R2, and voltage follower (U1) output speed voltage signal is to vehicle control device (04).
6. a kind of bidirectional speed governing sensor according to claim 1, is characterized in that: described tensile axis (02) is arranged with Compress Spring (09).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420804166.4U CN204434220U (en) | 2014-12-18 | 2014-12-18 | A kind of bidirectional speed governing sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420804166.4U CN204434220U (en) | 2014-12-18 | 2014-12-18 | A kind of bidirectional speed governing sensor |
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| Publication Number | Publication Date |
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| CN204434220U true CN204434220U (en) | 2015-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420804166.4U Active CN204434220U (en) | 2014-12-18 | 2014-12-18 | A kind of bidirectional speed governing sensor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110844841A (en) * | 2019-12-17 | 2020-02-28 | 合肥钦力电子有限公司 | Novel fork plays to rise speed governing potentiometre device |
| CN110986376A (en) * | 2019-12-09 | 2020-04-10 | 珠海格力电器股份有限公司 | Condensate detection device and method |
-
2014
- 2014-12-18 CN CN201420804166.4U patent/CN204434220U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110986376A (en) * | 2019-12-09 | 2020-04-10 | 珠海格力电器股份有限公司 | Condensate detection device and method |
| CN110844841A (en) * | 2019-12-17 | 2020-02-28 | 合肥钦力电子有限公司 | Novel fork plays to rise speed governing potentiometre device |
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