CN202755391U - Device for automatically recognizing wheel excavator traveling direction - Google Patents
Device for automatically recognizing wheel excavator traveling direction Download PDFInfo
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- CN202755391U CN202755391U CN 201220338177 CN201220338177U CN202755391U CN 202755391 U CN202755391 U CN 202755391U CN 201220338177 CN201220338177 CN 201220338177 CN 201220338177 U CN201220338177 U CN 201220338177U CN 202755391 U CN202755391 U CN 202755391U
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- switch
- electronic controller
- revolving dial
- excavator
- wheel excavator
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Abstract
The utility model discloses a device for automatically recognizing a wheel excavator traveling direction. Four proximity switches are respectively arranged on four equal diversion points on a circumference with the rotation center of a rotation platform as a circle center. The center arc of arc-shaped sheet metal and a circle are concentric and equal in radius, wherein the proximity switches are located on the circle. A forward control signal and a reverse control signal of a single-pole double-throw switch are respectively connected to an on-off input end DI1 and an on-off input end DI2 of an electronic controller. The four proximity switches are respectively connected to on-off input ends of the electronic controller. An on-off output end of the electronic controller is connected with a relay which is connected with an alerter. The device for automatically recognizing the wheel excavator traveling direction can automatically recognize a backup state and send out an alerting signal when an excavator is backed up, and manual operation on a backup switch is not needed. Therefore, workload of a driver is reduced, potential safety hazards properly existing in the process of backing up the excavator are reduced, and a wheel excavator can meet relative requirements of mandatory provisions on road vehicle lighting and signal lamps.
Description
Technical field
The utility model relates to a kind of automatic identification equipment of excavator traveling method, in particular a kind of wheel excavator direct of travel automatic identification equipment.
Background technology
Excavator is a kind of construction machinery commonly used in the engineering construction, is widely used in the engineering fields such as building, water conservancy, road, mine, and common excavator kind has crawler-mounted excavator, wheel excavator etc.Fig. 1 is the structural representation of common wheel excavator.As shown in Figure 1, because the centre of gyration of the revolving dial 101 of excavator is concentric with the center of circle of running gear 102 upper rotaries supporting 103, can detour walking apparatus 102 of revolving dial 101 is done 360 ° of any directions rotations, so direct of travel one timing when running gear 102, with respect to the driver in the drivers' cab, its direct of travel can be arbitrarily.For example, the direct of travel of supposing running gear 102 beginnings of excavator is direction of advance with respect to the driver, after the revolving dial 101 of excavator is done 180 ° of revolutions, the actual direction of travel of excavator does not change, but with respect to the driver, this moment, the direct of travel of excavator became astern direction.Based on security consideration, when excavator when advancing with respect to driver's astern direction, should have the reverse alarming signals such as light and sound to send to warn the personnel that the machine rear may exist.In addition in some countries and regions, wheel excavator is worked, is travelled at road and also should meet the requirement configuration back-up lamp of relevant road vehicle illumination and the mandatory provision of signal lamp.Because the above-mentioned characteristic of excavator, determined excavator can't as walking machine or vehicle equally with a certain fixedly direct of travel of running gear as astern signal, general implementation is to send alarm signal by manually opened reversing switch behind driver's artificial judgment machine direct of travel at present, this mode of operation not only increases driver's workload, when the driver when reversing not in accordance with regulations or human negligence forget the unlatching reversing switch, also can have serious potential safety hazard.On the other hand, because the gyroscopic characteristics of excavator, the driver goes to toward the direct of travel that can not determine machine fully in the walking of operating machines, and need to try out first with definite direct of travel, so also has potential safety hazard.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of wheel excavator direct of travel automatic identification equipment is provided, automatically identification and warning when reversing.
The utility model is achieved through the following technical solutions, and the utility model comprises four approach switchs being arranged on the revolving dial, is arranged at the arc metal plate on the running gear, single-pole double-throw switch (SPDT), electronic controller, relay and the alarm buzzer of control direction of travel; On four Along ents on described four approach switchs are arranged at respectively take the centre of gyration of revolving dial as the circumference in the center of circle, the center camber line of described arc metal plate is concentric with the circle at described approach switch place, etc. radius, switching value input DI1 and DI2 that the forward control signal of described single-pole double-throw switch (SPDT) and reverse control signal are connected respectively to electronic controller, the switching value input that is connected respectively to electronic controller of described four approach switchs, the switching value output of electronic controller links to each other with relay, and relay links to each other with alarm buzzer.
The arc length of described arc metal plate be the approach switch place circle girth 1/3rd.The excavator direct of travel have with respect to the driver advance, left, to the right, backward, left front, right front, left back, right back eight directions, wherein backward, left back, right back three directions are defined as the reversing state, 3/8 scope (135 °) that is circumference is the reversing state, for the scope that makes the reversing state is accurate, so the arc length of arc metal plate is got namely 120 ° of the circumferences 1/3 of approach switch place circle.
Described four approach switchs be respectively the centre of gyration dead ahead that is positioned at revolving dial Head switches, be positioned at the centre of gyration front-left of revolving dial the left end switch, be positioned at revolving dial centre of gyration dead astern Foot switches and be positioned at the right-hand member switch of the centre of gyration front-right of revolving dial, the switching value input that Head switches, left end switch, Foot switches and right-hand member switch are corresponding is respectively DI3, DI4, DI5 and DI6.
When described revolving dial is parallel with running gear, the center line of arc metal plate and the central lines of Head switches.
The utility model has the following advantages compared to existing technology: the utility model can automatically be identified the reversing state and send alarm signal when excavator is moveed backward, need not the manually-operated reversing switch, reduce driver's workload, the potential safety hazard that may exist when having reduced the excavator reversing, make wheel excavator can meet the requirement of the mandatory provision of relevant road vehicle illumination and signal lamp, show the excavator direct of travel at display, make the driver can know accurately that excavator is about to the direction of operation, need not trial run, reduce potential safety hazard.
Description of drawings
Fig. 1 is the structural representation of common wheel excavator;
Fig. 2 is the distribution schematic diagram of approach switch;
Fig. 3 is the structural representation of arc metal plate;
Fig. 4 is the electrical block diagram of the utility model recognition device;
Fig. 5 is the flow chart of the utility model recognition methods.
The specific embodiment
The below elaborates to embodiment of the present utility model; present embodiment is implemented under take technical solutions of the utility model as prerequisite; provided detailed embodiment and concrete operating process, but protection domain of the present utility model is not limited to following embodiment.
Such as Fig. 2, Fig. 3 and shown in Figure 4, present embodiment comprises four approach switchs being arranged on the revolving dial 101, is arranged at the arc metal plate 401 on the running gear 102, single-pole double-throw switch (SPDT) 502, electronic controller 501, relay 503 and the alarm buzzer of control direction of travel; On four Along ents on described four approach switchs are arranged at respectively take the centre of gyration of revolving dial 101 as the circumference in the center of circle, four approach switchs are respectively the Head switches 301 in the centre of gyration dead ahead that is positioned at revolving dial 101, be positioned at the left end switch 302 of the centre of gyration front-left of revolving dial 101, be positioned at the Foot switches 303 and the right-hand member switch 304 that is positioned at the centre of gyration front-right of revolving dial 101, Head switches 301 in the centre of gyration dead astern of revolving dial 101, left end switch 302, the switching value input of Foot switches 303 and right-hand member switch 304 correspondences is respectively DI3, DI4, DI5 and DI6.The center camber line of described arc metal plate 401 is concentric with the circle at described approach switch place, etc. radius, the forward control signal of described single-pole double-throw switch (SPDT) 502 and reverse control signal are connected respectively to switching value input DI1 and the DI2 of electronic controller 501, the switching value input that is connected respectively to electronic controller 501 of described four approach switchs, the switching value output of electronic controller 501 links to each other with relay 503, and the contact of relay 503 links to each other with alarm buzzer.
Described alarm buzzer comprises back-up lamp, voice guard even load.
The arc length of the arc metal plate 401 of present embodiment be the approach switch place circle girth 1/3rd.When revolving dial 101 and running gear 102 are parallel, the central lines of the center line of arc metal plate 401 and Head switches 301, the vertical distance that makes arc metal plate 401 and Head switches 301 in the range of signal of Head switches 301 and the two do not contact.
The forward control circuit of connecting single-pole double-throw switch (SPDT) 502 makes running gear 102 be in the forward direct of travel, switching value input DI1 port is input as 1 on the electronic controller 501 at this moment, Head switches 301 detects arc metal plate 401, switching value input DI3 port is input as 1 on the electronic controller 501, its excess-three approach switch all is output as 0 owing to do not detect arc metal plate 401.The logical combination of switching value input DI1 to the DI6 port of electronic controller 501 is 101000, and excavator is direction of advance with respect to the driver, and switching value output DO1 port is output as 0 on the control electronic controller 501 that is used for moveing backward.The relative direct of travel with excavator of all possible logical combination state and astern signal output relation such as table 1.
The relative direct of travel of table 1 excavator and astern signal output relation table.
As shown in Figure 5, practical work process is as follows:
(1) under the original state, switching value output D01 does not have signal output, D01=0 then,
(2) numerical value of read switch amount input DI1～DI6, wherein: during the control of single-pole double-throw switch (SPDT) 502 forwards, DI1=1, DI2=0; When single-pole double-throw switch (SPDT) 502 is oppositely controlled, DI1=0, DI2=1; Arc metal plate 401 and approach switch near the time, the switching value input that approach switch is corresponding is 1, the switching value output that other approach switchs that do not contact are corresponding is 0;
(3) table look-up 1, work as DI1=1, DI5 and DI6 are 1 simultaneously, and other are 0;
Perhaps DI1=1, DI4=0, other are 0;
Perhaps DI1=1, DI4 and DI5 are 1 simultaneously, other are 0;
Perhaps work as DI2=1, DI3 and DI4 are 1 simultaneously, and other are 0;
Perhaps DI2=1, DI3=1, other are 0;
Perhaps DI2=1, DI3 and DI6 are 1 simultaneously, other are 0 o'clock,
Judge that be astern signal=1 this moment, be the reversing walking, then switching value output D01=1 drives alarm buzzer work; Otherwise judging astern signal=0, is the forward walking, switching value output D01=0 then, and alarm buzzer is not worked.
Claims (4)
1. wheel excavator direct of travel automatic identification equipment, it is characterized in that, comprise four approach switchs being arranged on the revolving dial, be arranged at the arc metal plate on the running gear, single-pole double-throw switch (SPDT), electronic controller, relay and the alarm buzzer of control direction of travel; On four Along ents on described four approach switchs are arranged at respectively take the centre of gyration of revolving dial as the circumference in the center of circle, the center camber line of described arc metal plate is concentric with the circle at described approach switch place, etc. radius, switching value input DI1 and DI2 that the forward control signal of described single-pole double-throw switch (SPDT) and reverse control signal are connected respectively to electronic controller, the switching value input that is connected respectively to electronic controller of described four approach switchs, the switching value output of electronic controller links to each other with relay, and relay links to each other with alarm buzzer.
2. wheel excavator direct of travel automatic identification equipment according to claim 1 is characterized in that: the arc length of described arc metal plate be the approach switch place circle girth 1/3rd.
3. wheel excavator direct of travel automatic identification equipment according to claim 1, it is characterized in that: described four approach switchs be respectively the centre of gyration dead ahead that is positioned at revolving dial Head switches, be positioned at the centre of gyration front-left of revolving dial the left end switch, be positioned at revolving dial centre of gyration dead astern Foot switches and be positioned at the right-hand member switch of the centre of gyration front-right of revolving dial, the switching value input that Head switches, left end switch, Foot switches and right-hand member switch are corresponding is respectively DI3, DI4, DI5 and DI6.
4. wheel excavator direct of travel automatic identification equipment according to claim 3 is characterized in that: when described revolving dial is parallel with running gear, and the center line of arc metal plate and the central lines of Head switches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220338177 CN202755391U (en) | 2012-07-12 | 2012-07-12 | Device for automatically recognizing wheel excavator traveling direction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220338177 CN202755391U (en) | 2012-07-12 | 2012-07-12 | Device for automatically recognizing wheel excavator traveling direction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202755391U true CN202755391U (en) | 2013-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220338177 Expired - Fee Related CN202755391U (en) | 2012-07-12 | 2012-07-12 | Device for automatically recognizing wheel excavator traveling direction |
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| CN (1) | CN202755391U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102733435A (en) * | 2012-07-12 | 2012-10-17 | 熔盛机械有限公司 | Automatic identification device and method for heading direction of wheeled excavator |
| CN103552504A (en) * | 2013-11-06 | 2014-02-05 | 张力永 | Back-up safety system of loading machine |
-
2012
- 2012-07-12 CN CN 201220338177 patent/CN202755391U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102733435A (en) * | 2012-07-12 | 2012-10-17 | 熔盛机械有限公司 | Automatic identification device and method for heading direction of wheeled excavator |
| CN103552504A (en) * | 2013-11-06 | 2014-02-05 | 张力永 | Back-up safety system of loading machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130227 Termination date: 20160712 |
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| CF01 | Termination of patent right due to non-payment of annual fee |