CN201935667U - Turning signal sensing device for three-fulcrum type motor-driven fork truck - Google Patents
Turning signal sensing device for three-fulcrum type motor-driven fork truck Download PDFInfo
- Publication number
- CN201935667U CN201935667U CN2011200184469U CN201120018446U CN201935667U CN 201935667 U CN201935667 U CN 201935667U CN 2011200184469 U CN2011200184469 U CN 2011200184469U CN 201120018446 U CN201120018446 U CN 201120018446U CN 201935667 U CN201935667 U CN 201935667U
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- potentiometer
- sensing device
- signal sensing
- fulcrum type
- shaft coupling
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Abstract
The utility model relates to a turning signal sensing device for a three-fulcrum type motor-driven fork truck. The device comprises a potentiometer and a shaft coupling, wherein the potentiometer is arranged on a locating plate; an output shaft of the potentiometer is connected with one end of the shaft coupling; a U-shaped groove is arranged at one end of the locating plate; a limit pin is arranged in the U-shaped groove of the locating plate; a screw rod is arranged at the other end of the limit pin; and a screw rod end of the limit pin is connected with a screw nut. The positioning of the potentiometer provided by the utility model adopts the flexible connection method, thereby effectively avoiding the occurrences of rigid jamming and damage. The device has the advantages of reasonable design, simple structure, convenience in assembly and overhaul, improved operational efficiency, accurate and reliable transmission signals, and low manufacturing cost.
Description
Technical field
The utility model belongs to the electri forklift technical field, is specifically related to be used for the turn signal sensing device of three fulcrum type electri forklifts.
Background technology
Three fulcrum type electri forklifts adopt propons Dual-motors Driving mode, that is: two front-wheels are driven it by two cover reducer casinges by two drive motor respectively.The technological merit of this type of drive is: powerful makes that the climbable gradient of fork truck is big and travel speed is fast; Radius of turn is little.When fork truck was turned, two one of drive motor just changeed, a counter-rotating, by differential, made turning center between two-wheeled, can significantly reduce radius of turn like this.For realizing this function, need to install a cover turn signal sensing device, can feed back the wheel steering angle in real time to control system, controller to every rotating speed of motor or turn to and adjust, and then is realized electric differential control according to the angle signal that receives.
The turn signal sensing device that present three fulcrum type electri forklifts adopt is the mode that adopts " stationary installation+potentiometer+shaft coupling ", but because locator meams and shaft coupling connect the defective of form, cause locating device slip or stuck, cause transmission signals inaccurate, the drive motor rotating speed is out of control, thereby electri forklift travels undesiredly, perhaps do not work, even forms potential safety hazard.And this turn signal transmitting device complex structure causes installing and maintenance all has difficulties, and has seriously reduced the convenience of assembling and after-sales service work.Therefore, how accurately, reliably to control system transmission turn signal, simultaneously be convenient to keep in repair and be mounted for the technical bottleneck that limits this vehicle sales volume again, be badly in need of the new turn signal transmitting device of a cover and help controller and drive the motor coordination operation, realize differential control two.
Summary of the invention
For the fault of construction that the turn signal sensing device that solves existing three fulcrum type electri forklifts exists, the utility model provides a kind of new construction to be used for the turn signal sensing device of three fulcrum type electri forklifts.
Concrete architecture advances technical scheme is as follows:
The turn signal sensing device that is used for three fulcrum type electri forklifts, comprise potentiometer and shaft coupling, described potentiometer is located on the spacer, the output shaft of potentiometer is connecting an end of shaft coupling, one end of spacer is provided with U-lag, be provided with spacer pin in the U-lag of spacer, the other end of spacer pin is a screw rod, and the screw rod end of spacer pin is connecting nut.
Described potentiometer is the metal shaft multiturn potentiometer.
Described shaft coupling is fixed positive coupling.
Useful technique effect of the present utility model embodies in the following areas:
1, flexible connection mode is adopted in the location of the utility model potentiometer, has effectively avoided the appearance that rigidity is stuck, damage phenomenon.
2, the utility model is reasonable in design, and is simple in structure, and assembling and maintenance are convenient, improve operating efficiency.
3, this device transmission signals is accurate, reliable, low cost of manufacture.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the vertical view of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described by embodiment.
Embodiment:
Referring to Fig. 1, the turn signal sensing device that is used for three fulcrum type electri forklifts comprises potentiometer 1 and shaft coupling 2, and potentiometer 1 is the metal shaft multiturn potentiometer.Shaft coupling 2 is fixed positive coupling, adopts the semicircle telescoping structure.
During use, this device is installed on the steeraxle end cap.The other end that concrete installation connected mode is a shaft coupling 2 is connecting the steeraxle connecting pin 6 on the steeraxle end cap 7, and spacer pin 4 is connecting steeraxle end cap 7 by the screw rod end.
When fork-truck steering, the turn signal that potentiometer 1 transmits steeraxle connecting pin 6 changes into pulsed quantity or voltage signal sends to central control system---and controller, controller are handled the speed and the direction of left and right sidesing driving wheel according to this signal.
Corresponding with the control system respectively port of three ports of potentiometer links to each other.Wherein first end is high-end, and for potentiometer provides power supply signal, second end is a low side, and the 3rd end is the output test side.When car load is turned left, when steering angle 70～75 was spent, the left driving wheel rotating speed was zero, when continuing to turn to 76～90 to spend, and the left and right sidesing driving wheel backward rotation; When car load bends to right, otherwise.
Claims (3)
1. the turn signal sensing device that is used for three fulcrum type electri forklifts, it is characterized in that: comprise potentiometer and shaft coupling, described potentiometer is located on the spacer, the output shaft of potentiometer is connecting an end of shaft coupling, one end of spacer is provided with U-lag, be provided with spacer pin in the U-lag of spacer, the other end of spacer pin is a screw rod, and the screw rod end of spacer pin is connecting nut.
2. the turn signal sensing device that is used for three fulcrum type electri forklifts according to claim 1 is characterized in that: described potentiometer is the metal shaft multiturn potentiometer.
3. the turn signal sensing device that is used for three fulcrum type electri forklifts according to claim 1 is characterized in that: described shaft coupling is fixed positive coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200184469U CN201935667U (en) | 2011-01-21 | 2011-01-21 | Turning signal sensing device for three-fulcrum type motor-driven fork truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200184469U CN201935667U (en) | 2011-01-21 | 2011-01-21 | Turning signal sensing device for three-fulcrum type motor-driven fork truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201935667U true CN201935667U (en) | 2011-08-17 |
Family
ID=44447185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200184469U Expired - Lifetime CN201935667U (en) | 2011-01-21 | 2011-01-21 | Turning signal sensing device for three-fulcrum type motor-driven fork truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201935667U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106080775A (en) * | 2016-08-11 | 2016-11-09 | 合肥搬易通科技发展有限公司 | A kind of electri forklift electricity steering direction dish signal output and stopping means |
-
2011
- 2011-01-21 CN CN2011200184469U patent/CN201935667U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106080775A (en) * | 2016-08-11 | 2016-11-09 | 合肥搬易通科技发展有限公司 | A kind of electri forklift electricity steering direction dish signal output and stopping means |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110817 |
|
| CX01 | Expiry of patent term |