CN202141445U - Measuring device for luffing range of cantilever support - Google Patents
Measuring device for luffing range of cantilever support Download PDFInfo
- Publication number
- CN202141445U CN202141445U CN201120234091U CN201120234091U CN202141445U CN 202141445 U CN202141445 U CN 202141445U CN 201120234091 U CN201120234091 U CN 201120234091U CN 201120234091 U CN201120234091 U CN 201120234091U CN 202141445 U CN202141445 U CN 202141445U
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- China
- Prior art keywords
- jib
- measurement mechanism
- turning axle
- sensor
- web joint
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Abstract
The utility model discloses a measuring device for luffing range of a cantilever support. The measuring device includes a rotary shaft (11) fixed on the cantilever support (10), a sensor (20) and a connecting plate (30). The sensor (20) includes a spindle (21) and a sensor body (22) connecting with the spindle (21). The spindle (21) connects with the rotary shaft (11). The sensor body (22) is installed on one end of the connecting plate (30). The other end of the connecting plate (30) is fixed on a cantilever support (10) next to the cantilever support (10) or on a rotary table supporting the cantilever support (10). In the utility model, the spindle of the sensor is connected to a central position of an end part of the rotary shaft of the cantilever support. Thus, good coaxiality can be guaranteed, so as to measure angles accurately. Moreover, the utility model also includes a connecting piece. With the connecting piece, the assembling requirements of the measuring device for the luffing range of the cantilever support is lowered, the installation period is shortened. No onsite assembling and soldering is needed, and no repeated adjustment is needed for final positioning.
Description
Technical field
The utility model relates to the engineering truck field, relates in particular to a kind of jib luffing measurement mechanism of engineering truck.
Background technology
In the design of fire truck and high-altitude operation vehicle, when work was got on the bus in the car load leveling, the PLC control program was according to empty leg signal, the angle of revolution of turntable and the change angle of jib or ladder of feedback supporting leg come car load is carried out safeguard protection in real time.Thereby the change angle of ladder or jib is the key parameter of car load security performance protection.When the change angle of ladder or jib exceeded secure setting, whole-control system can not tumble the restriction action of getting on the bus or collide to guarantee car load.
The mensuration of the change angle of existing fire truck jib or ladder all is to adopt the Weight type obliquity sensor; The disclosed folding arm-type high-altitude operation vehicle job platform anti-tilting apparatus of Chinese patent CN 201619998 U adopts obliquity sensor to carry out measurement of angle exactly.This patent is to utilize gravity to draw the angle of sensor and ground level.For example to measure the angle between the second joint jib and the first segment jib; Need on the first segment jib and the second joint jib, a Weight type sensor be installed respectively; Draw the angle of first segment jib and the second joint jib and ground level respectively, computing draws angle in PLC then.But common this obliquity sensor volume is big, and receives the jib motional effects when using, and measurement result is inaccurate.
In order to measure accurately, to disclose a kind of use scrambler (being sensor) among another part Chinese patent CN 200950051Y and replaced obliquity sensor to measure the technical scheme of angle between the jib.In this patent; Scrambler body (sensor body) is installed on the turning axle of a joint jib through outer cover; And coder shaft (sensor axis) is fixedly connected with another joint jib, measures the angle between the jib with this by relatively rotating of scrambler body and coder shaft.
But in this patent, the scrambler body is connected with the turning axle of jib through outer cover, can not guarantee good right alignment, thereby can not accurately measure; In addition, this connected mode makes outer cover and jib turning axle difficult installation, because outer cover and jib turning axle are interference fit; Need beat outer cover during installation; The boss of outer cover is got in the jib turning axle fully, thereby, the high and length consuming time of matching requirements; And outer cover and jib turning axle will fuse after installation, influence the dismounting of jib turning axle; In addition, the installation site of connecting link, stationary shaft, installing plate need be carried out the scene and gesticulated and join weldering in this patent, when jib moves, debugs repeatedly with final location.
Therefore, in order to overcome various defectives in the above-mentioned patent, need a kind of improved jib luffing measurement mechanism that can accurately measure the jib not care about one's appearance.
The utility model content
The purpose of the utility model provides a kind of jib luffing measurement mechanism, and this jib luffing measurement mechanism can guarantee good right alignment, thereby takes measurement of an angle exactly.
Another purpose of the utility model provides a kind of jib luffing measurement mechanism, and this jib luffing measurement mechanism need not carry out the scene to be gesticulated and join weldering, also need when jib moves, not debug repeatedly with final location.
In order to realize the purpose of the utility model; A kind of this jib luffing measurement mechanism is provided; The measurement of jib luffing comprises turning axle, sensor and the web joint that is fixed on the jib, and wherein this sensor comprises rotating shaft and the body that is connected with this rotating shaft, and said rotating shaft is connected with said turning axle; Said body is installed in an end of said web joint, and the other end of said web joint is fixed on another joint jib adjacent with said jib or is fixed on the turntable that supports said jib.
Preferably, said web joint is bending, and the two ends of said web joint are positioned at Different Plane, and said body is installed in an end of said web joint through securing member.
In order to realize another purpose of the utility model, the jib luffing measurement mechanism that provides also comprises web member, and an end of this web member is connected with said turning axle, and the other end is connected in said rotating shaft.
Preferably, said web joint is provided with opening, and this opening sleeve is on an end of said web member.
As a kind of embodiment, said web member is a locating piece, and this locating piece comprises bottom and the boss that one side is extended from the bottom; Said bottom is fixed on the said turning axle; Said boss is provided with pilot hole, and said rotating shaft is fixed in this pilot hole, and said opening sleeve is on said boss.
As another kind of embodiment; Said web member is a coupling shaft; This coupling shaft is the stage axle, and an end of said coupling shaft is fixed on the said turning axle, and the other end of said coupling shaft is provided with connecting hole; Said rotating shaft is fixed in this connecting hole, and said opening sleeve is contained on the other end of said coupling shaft.
Preferably, said turning axle and an end of said coupling shaft are for being threaded.
More preferably, said coupling shaft is provided with nut and pad, and this nut is positioned at a side of said web joint, and relative with said body, in the draw-in groove of the said coupling shaft of said pad between said nut and said web joint.
In addition, said jib luffing measurement mechanism also comprises the outer cover in the body outside that is positioned at said sensor, and this outer cover is installed on the said web joint.
In the jib luffing measurement mechanism of the utility model, the rotating shaft of sensor is connected to the center of jib turning axle end, can guarantee good right alignment, thereby take measurement of an angle exactly.And use web member to connect rotating shaft and turning axle; Installing plate is enclosed within on the said web member; Make the matching requirements of jib luffing measurement mechanism low, weak point consuming time is installed; After installation, do not influence the dismounting of jib turning axle, and jib luffing measurement mechanism need not carry out the scene and gesticulate and join weldering, need when jib moves, not debug repeatedly yet with final location.
Other feature and advantage of the utility model will partly specify in embodiment subsequently.
Description of drawings
Accompanying drawing is the further understanding that is used to provide the utility model, and constitutes the part of instructions, is used to explain the utility model with following embodiment, but does not constitute the restriction to the utility model.In the accompanying drawings:
Fig. 1 is the enlarged diagram of first kind of embodiment of the utility model;
Fig. 2 is the enlarged diagram of second kind of embodiment of the utility model;
Fig. 3 is the synoptic diagram of the middle installing plate of the utility model;
Fig. 4 is the synoptic diagram of locating piece in first kind of embodiment of the utility model;
Fig. 5 is the synoptic diagram of middle coupling shaft of second kind of embodiment of the utility model.
Reference numeral
10 jibs, 11 turning axles
21 rotating shafts of 20 sensors
22 bodies, 30 web joints
31 openings, 41 locating pieces
41c pilot hole 42 coupling shafts
42a connecting hole 43 nuts
44 pads, 45 spring washers
50 outer covers
Embodiment
Be elaborated below in conjunction with the embodiment of accompanying drawing to the utility model.Should be understood that embodiment described herein only is used for explanation and explains the utility model, is not limited to the utility model.
As depicted in figs. 1 and 2, the jib luffing measurement mechanism of the utility model comprises turning axle 11, sensor 20 and the web joint 30 that is fixed on the jib 10.Wherein, This sensor 20 comprises rotating shaft 21 and the body 22 that is connected with this rotating shaft 21; Said rotating shaft 21 is connected with said turning axle 11; Said body 22 is installed in an end of said web joint 30, and the other end of said web joint 30 is fixed on another joint jib 10 adjacent with said jib 10 or is fixed on the turntable that supports said jib 10.
Wherein, said sensor 20 can be a various angular transducer well known in the prior art, and its principle of work also well known to a person skilled in the art, repeats no more here.Said turning axle 11 is fixedly connected with said jib 10, and when jib 10 rotated, turning axle 11 rotated thereupon, and promptly the anglec of rotation of turning axle 11 is the angle that jib 10 rotates.The rotating shaft 21 of said sensor 20 is connected with said turning axle 11, like this rotation of turning axle 11 is passed to the rotation of rotating shaft 21; The body 22 of said sensor 20 is installed in an end of said web joint 30, can relatively rotate with rotating shaft 21.
Preferably, as shown in Figure 3, web joint 30 is bending, and the two ends of web joint 30 are positioned at Different Plane, and the sensor 20 that is installed on the web joint 30 is positioned on the turning axle 11 that stretches out jib 10, disturbs jib 10 to rotate to prevent sensor 20.As depicted in figs. 1 and 2, the other end of web joint 30 is fixed on another joint jib 10 adjacent with said jib 10 through securing member (screw).In addition, the other end of web joint 30 can also be fixed on (not shown) on the turntable that supports said jib 10.
For example; Be fixed under the situation on another joint jib 10 adjacent at the other end of web joint 30 with said jib 10; When jib 10 rotates with respect to another joint jib 10; The anglec of rotation of rotating shaft 21 is the rotational angle of jib 10, and the body 22 that is fixed on web joint 30 is connected with another joint jib 10 and relative fixed is motionless.Thus, sensor 20 records the angle that jib 10 rotates with respect to another joint jib 10.
And sensor 20 is with this relative rotation angle signal feedback to whole-control system (not shown), and whole-control system confirms with this whether jib 10 can be rotated further.When the rotational angle of jib 10 exceeds secure setting, whole-control system sends the signal that jib 10 stops operating, and can not tumble to guarantee car load.In like manner, if the other end of web joint 30 is fixed on the turntable, then be used to measure between jib 10 and the turntable angle in relative rotation.Because in the technique scheme, turning axle 11 directly is connected the center of rotating shaft 21 ends, thereby has guaranteed good right alignment, makes the anglec of rotation that records more accurate.
Preferably, jib luffing measurement mechanism can also comprise web member, is used to connect said rotating shaft 21 and said turning axle 11, and said installing plate is enclosed within on the said web member.
Specifically, an end of said web member is connected with said turning axle 11, and the other end is connected with said rotating shaft 21.And said web joint 30 is provided with opening 31, is used for this opening 31 is enclosed within an end of said web member.Because the body 22 of sensor 20 is fixedly mounted on the web joint 30, so be clearance fit between said opening 31 and the said web member, makes said web member in said opening 31, to rotate.
This connected mode make the matching requirements of jib luffing measurement mechanism low, weak point consuming time is installed; After installation, do not influence the dismounting of jib turning axle; And jib luffing measurement mechanism need not carry out the scene to be gesticulated and joins weldering, also need when jib moves, not debug repeatedly with final location.
As shown in Figure 1, the jib luffing measurement mechanism for first kind of embodiment of the utility model comprises turning axle 11, sensor 20 and web joint 30, and wherein, connecting the rotating shaft 21 of said sensor 20 and the web member of said turning axle 11 is locating piece 41.
Referring to Fig. 1 and Fig. 4, this locating piece 41 comprises bottom 41a and the boss 41b that 41a one side is extended from the bottom.Center at turning axle 11 end faces offers groove, and said bottom 41a is co-axially mounted in this groove, through securing member (like screw) bottom 41a is fixed on the said turning axle 11 then.Compared with prior art, this connection need not locating piece 41 is beaten into turning axle 11, can either guarantee right alignment, can not damage locating piece 41 again, promptly the assembling require low, weak point consuming time is installed, after installation, do not influence the dismounting of turning axle 11.
In addition, said boss 41b is provided with pilot hole 41c, is used for fixing rotating shaft 21.Visible by Fig. 1, the said opening 31 of said web joint 30 is enclosed within on the said boss 41b.Between said boss 41b and the said opening 31 is clearance fit, thereby boss 41b can be rotated in said opening 31, and this clearance fit can also offset installation deviation, need not when jib 10 motions, to debug repeatedly.
As shown in Figure 2, the jib luffing measurement mechanism for second kind of embodiment of the utility model comprises turning axle 11, sensor 20 and web joint 30 equally, and wherein, connecting the rotating shaft 21 of said sensor 20 and the web member of said turning axle 11 is coupling shaft 42.
Referring to Fig. 2 and Fig. 5, said coupling shaft 42 is the stage axle, offers threaded hole in the center of turning axle 11 end faces, and an end of said coupling shaft 42 is connected in the threaded hole coaxially.Like this, through being threaded, can install easily or removal sensor 20.Being threaded equally to guarantee the right alignment of turning axle 11 and coupling shaft 42, and during installation and removal, can not cause damage to coupling shaft 42.Preferably, between turning axle 11 end faces and coupling shaft 42, also be provided with spring washer 45, be used for fastening turning axle 11 and coupling shaft 42, prevent to become flexible.
The other end at said coupling shaft 42 is provided with connecting hole 42a, and said rotating shaft 21 can be stuck among this connecting hole 42a, and the said opening 31 of said web joint 30 is enclosed within on the other end of said coupling shaft 42.Similar with first kind of embodiment, said opening 31 is a clearance fit with said coupling shaft 42, and said coupling shaft 42 is rotated in said opening 31, can offset installation deviation, need not when jib 10 motions, to debug repeatedly.
Preferably, on said coupling shaft 42, also be provided with nut 43 and pad 44.In a side of said web joint 30, the periphery that is positioned at coupling shaft 42 is provided with screw thread, and said nut 43 is threaded with coupling shaft 42.Coupling shaft 42 between said nut 43 and the said web joint 30 is provided with draw-in groove, and said pad 44 is stuck in the said draw-in groove.The setting of said pad 44 is used for when jib 10 rotates, preventing the axial displacement of installing plate 30.43 on said nut is used for locating shim 44.More preferably, between pad 44 and web joint 30, leave the gap, to reduce the friction between installing plate 30 and the pad 44.
Preferably, can also be at the arranged outside outer cover 50 of said sensor 20.As shown in Figure 2, can on an end of installing plate 30, weld a baffle plate (unmarked), this outer cover 50 is installed on the said baffle plate through securing member, thereby links together with web joint 30.Outer cover 50 is set, can makes sensor 20 dustproof and crashproof.
More than combine accompanying drawing to describe the preferred implementation of the utility model in detail; But; The utility model is not limited to the detail in the above-mentioned embodiment, in the technical conceive scope of the utility model, can carry out multiple simple variant to the technical scheme of the utility model; For example, can change web member into any member that existing shaft coupling etc. can be realized same effect.For another example, can also said outer cover 50 be directly installed on the body 22 of said sensor 20, can reach dustproof, crashproof effect equally.As long as its thought without prejudice to the utility model, these simple variant all belong to the protection domain of the utility model.
Claims (9)
1. jib luffing measurement mechanism; This jib luffing measurement mechanism comprises turning axle (11), sensor (20) and the web joint (30) that is fixed on the jib (10); It is characterized in that; This sensor (20) comprises rotating shaft (21) and the body (22) that is connected with this rotating shaft (21); Said rotating shaft (21) is connected with said turning axle (11), and said body (22) is installed in an end of said web joint (30), and the other end of said web joint (30) is fixed on another joint jib (10) adjacent with said jib (10) and goes up or be fixed on the turntable that supports said jib (10).
2. jib luffing measurement mechanism according to claim 1 is characterized in that said web joint (30) is bending, and the two ends of said web joint (30) are positioned at Different Plane, and said body (22) is installed in an end of said web joint (30) through securing member.
3. jib luffing measurement mechanism according to claim 1 is characterized in that, said jib luffing measurement mechanism also comprises web member, and an end of this web member is connected with said turning axle (11), and the other end is connected in said rotating shaft (21).
4. jib luffing measurement mechanism according to claim 3 is characterized in that said web joint (30) is provided with opening (31), and this opening (31) is enclosed within on the end of said web member.
5. jib luffing measurement mechanism according to claim 3; It is characterized in that said web member is locating piece (41), this locating piece (41) comprises bottom (41a) and the boss (41b) that (41a) side is extended from the bottom; Said bottom (41a) is fixed on the said turning axle (11); Said boss (41b) is provided with pilot hole (41c), and said rotating shaft (21) is fixed in this pilot hole (41c), and said opening (31) is enclosed within on the said boss (41b).
6. jib luffing measurement mechanism according to claim 3; It is characterized in that said web member is coupling shaft (42), this coupling shaft (42) is the stage axle; One end of said coupling shaft (42) is fixed on the said turning axle (11); The other end of said coupling shaft (42) is provided with connecting hole (42a), and said rotating shaft (21) is fixed in this connecting hole (42a), and said opening (31) is sleeved on the other end of said coupling shaft (42).
7. jib luffing measurement mechanism according to claim 6 is characterized in that, an end of said turning axle (11) and said coupling shaft (42) is for being threaded.
8. jib luffing measurement mechanism according to claim 7; It is characterized in that; Said coupling shaft (42) is provided with nut (43) and pad (44); This nut (43) is positioned at a side of said web joint (30), and relative with said body (22), and said pad (44) is arranged in the draw-in groove of the said coupling shaft (42) between said nut (43) and the said web joint (30).
9. jib luffing measurement mechanism according to claim 1 is characterized in that, said jib luffing measurement mechanism also comprises the outer cover (50) in body (22) outside that is positioned at said sensor (20), and this outer cover (50) is installed on the said web joint (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120234091U CN202141445U (en) | 2011-07-05 | 2011-07-05 | Measuring device for luffing range of cantilever support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120234091U CN202141445U (en) | 2011-07-05 | 2011-07-05 | Measuring device for luffing range of cantilever support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202141445U true CN202141445U (en) | 2012-02-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120234091U Expired - Lifetime CN202141445U (en) | 2011-07-05 | 2011-07-05 | Measuring device for luffing range of cantilever support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202141445U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104215211A (en) * | 2014-09-30 | 2014-12-17 | 徐州重型机械有限公司 | Arm support variable-amplitude angle detection device and method |
| CN112033319A (en) * | 2020-09-03 | 2020-12-04 | 山西天地煤机装备有限公司 | Device and method for detecting cutting height of mining excavation equipment |
| CN114199179A (en) * | 2021-12-02 | 2022-03-18 | 中船黄埔文冲船舶有限公司 | Three-dimensional angle sensor mounting device and using method thereof |
-
2011
- 2011-07-05 CN CN201120234091U patent/CN202141445U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104215211A (en) * | 2014-09-30 | 2014-12-17 | 徐州重型机械有限公司 | Arm support variable-amplitude angle detection device and method |
| CN112033319A (en) * | 2020-09-03 | 2020-12-04 | 山西天地煤机装备有限公司 | Device and method for detecting cutting height of mining excavation equipment |
| CN114199179A (en) * | 2021-12-02 | 2022-03-18 | 中船黄埔文冲船舶有限公司 | Three-dimensional angle sensor mounting device and using method thereof |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120208 |