CN203069171U - Rotation angle measurement device and engineering machinery - Google Patents
Rotation angle measurement device and engineering machinery Download PDFInfo
- Publication number
- CN203069171U CN203069171U CN 201220739435 CN201220739435U CN203069171U CN 203069171 U CN203069171 U CN 203069171U CN 201220739435 CN201220739435 CN 201220739435 CN 201220739435 U CN201220739435 U CN 201220739435U CN 203069171 U CN203069171 U CN 203069171U
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- input shaft
- angle measurement
- scrambler
- connecting key
- shaft coupling
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Abstract
The utility model discloses a rotation angle measurement device and engineering machinery. The rotation angle measurement device comprises an encoder, a measured rotation shaft, a coupler and a connecting key, wherein the encoder comprises an encoder input shaft; a gap is arranged between the measured rotation shaft and the encoder input shaft, and the measured rotation shaft and the encoder input shaft are connected via the coupler; and the measured rotation shaft and/or the encoder input shaft is connected with the coupler in an axial sliding mode via the connecting key. According to the rotation angle measurement device, as a gap is arranged between the encoder input shaft and the measured rotation shaft, and at least one of the two is connected with the coupler in an axial sliding mode via the connecting key, in the measurement process of the rotation angle measurement device, if the measured rotation shaft vibrates, especially axially vibrates, mutual sliding can also happens between the encoder input shaft and the measured rotation shaft, vibration generated by the measured input shaft can be buffered by the encoder, damage of the encoder can be avoided due to impact, and the service life can be prolonged.
Description
Technical field
The utility model relates to the mechanical measurement field, particularly a kind of rotating angle measurement apparatus and have the engineering machinery of this rotating angle measurement apparatus.
Background technology
At present, in the engineering machinery field, often need to monitor between machine two parts angle in relative rotation, be a kind of construction machinery of soil taking hole forming as rotary drilling rig, by continuous cutting ground, be promoted to then and unload soil outside the hole, same hole is crept in operation through periodic cycle, need measure accurately the angle of revolution of upper body, adopt between its upper body and the underframe be the swinging mechanism of widespread use to realize the revolution operation of upper body, the angle of revolution of upper body is to extract rotary angle signal by rotary encoder to obtain.When rotary encoder takes measurement of an angle, by the gear ring that is fixed in underframe pivoting support lower end, be passed to outer rotor and gear shaft by engagement, gear shaft links to each other with the scrambler input shaft by shaft coupling as tested turning axle, drives the scrambler input shaft and rotates.
The shaft coupling of available technology adopting is generally flexible clutch; allow shaft coupling to produce distortion; when vibration takes place power output shaft, scrambler is carried out to a certain degree protection; yet; the deformable amount of shaft coupling is very little, and engineering machinery is vibrated very big when work; cause that correspondingly gear shaft produces violent vibration or rocks, the vibration side-play amount is usually much larger than the deformable amount of shaft coupling.Therefore, engineering machinery complete machine oscillation or rock the impact that causes rotary encoder and break causes that scrambler is malfunctioning, causes turning round fault, influences operating efficiency and promotes construction cost.
The utility model content
In view of this, the utility model proposes a kind of rotating angle measurement apparatus and have the engineering machinery of this rotating angle measurement apparatus, it has improved the connected mode between scrambler input shaft and the tested turning axle, shaft coupling fixedlyed connected to change into the screw between scrambler input shaft and/or the tested turning axle be slidingly connected, make scrambler can cushion bigger vibration, avoid scrambler to be impacted and damage, extender serviceable life.
On the one hand, the utility model provides a kind of rotating angle measurement apparatus, comprises scrambler, tested turning axle, shaft coupling and connecting key, and described scrambler comprises the scrambler input shaft; Be provided with the gap between described tested turning axle and the described scrambler input shaft, and connect by described shaft coupling; Described tested turning axle and/or described scrambler input shaft can be connected with described shaft coupling axially slidably by described connecting key.
Further, described connecting key is flat key.
Further, described shaft coupling is flexible clutch.
Further, described scrambler input shaft can be connected with described shaft coupling axially slidably by described connecting key, and described tested turning axle is fixedlyed connected with described shaft coupling by screw.
Further, be provided with keyway with described connecting key clearance fit on described scrambler input shaft and the described shaft coupling; Perhaps,
Described connecting key is fixedly installed on the described scrambler input shaft, and the correspondence position on the described shaft coupling offers the keyway with described connecting key clearance fit.
Further, the gap between described connecting key and the described keyway is 0.01mm.
On the other hand, the utility model also provides a kind of engineering machinery, is provided with aforesaid rotating angle measurement apparatus.
Further, described engineering machinery is rotary drilling rig, and the upper body of described rotary drilling rig is connected by pivoting support with underframe;
Described tested turning axle is connected with the pivoting support lower end of described rotary drilling rig, and described scrambler is arranged on the pivoting support lower end of described rotary drilling rig.
Rotating angle measurement apparatus of the present utility model, scrambler input shaft and tested turning axle are gapped, and the two at least one can be in axial sliding connection by connecting key and shaft coupling, therefore, rotating angle measurement apparatus of the present utility model is when surveying work, when if tested turning axle produces vibration, when especially producing axial vibration, can slide mutually between scrambler input shaft and the tested turning axle, make scrambler can cushion the vibration that tested input shaft causes, avoid scrambler to be impacted and damage, extender serviceable life.
Description of drawings
The accompanying drawing that constitutes a part of the present utility model is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not constitute improper restriction of the present utility model.In the accompanying drawings:
A kind of rotating angle measurement apparatus structural representation that Fig. 1 provides for the utility model embodiment.
Embodiment
Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment in the utility model can make up mutually.Describe the utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Be illustrated in figure 1 as the rotating angle measurement apparatus that the utility model embodiment provides, comprise scrambler 9, tested turning axle (being gear shaft 3), shaft coupling 6 and connecting key 7, scrambler 9 comprises scrambler input shaft 8; Be provided with the gap between tested turning axle and the scrambler input shaft 8, and connect by shaft coupling 6; Tested turning axle and/or scrambler input shaft 8 can be connected with shaft coupling 6 axially slidably by connecting key 7.
In the rotating angle measurement apparatus of the utility model embodiment, scrambler input shaft 9 is gapped with tested turning axle (as gear shaft 3), and the two at least one can be in axial sliding connection by connecting key and shaft coupling 6, therefore, the rotating angle measurement apparatus of the utility model embodiment is when surveying work, when if tested turning axle produces vibration, when especially producing axial vibration, can slide mutually between scrambler input shaft and the tested turning axle, make scrambler can cushion the vibration that tested input shaft causes, avoid scrambler to be impacted and damage, prolong its serviceable life.
Need to prove the described axial direction that axially refers to scrambler input shaft or tested turning axle (the two is coaxial setting) of the utility model embodiment.
Be example with the rotary drilling rig, as shown in Figure 1, the rotating angle measurement apparatus in above-described embodiment is arranged on the rotary drilling rig.Particularly, rotary encoder 9 is arranged on the pivoting support upper end of rotary drilling rig by support 5, be on the upper body 4 of rotary drilling rig, scrambler input shaft 8 is connected with gear shaft 3 by shaft coupling 6, and leaves certain clearance between scrambler input shaft 8 and the gear shaft 3; This shaft coupling 6 is preferably flexible clutch, and flexible clutch can relax the vibration that gear shaft 3 causes to a certain extent.Be provided with keyway on scrambler input shaft 8 and the shaft coupling 6, connecting key 7 is arranged in the keyway of scrambler input shaft 8 and shaft coupling 6, and scrambler input shaft 8 can be along the axial relative slip of scrambler input shaft 8 with shaft coupling 6.This connecting key 7 is preferably flat key.Fixedly connected by screw 10 with gear shaft 3 in shaft coupling 6 lower ends, the bottom of gear shaft 3 is by the engagement of the gear ring on the underframe 1 of outer rotor 2 and rotary drilling rig.
In above-described embodiment; except flexible clutch can play the effect of certain mitigation vibratory impulse; be connected by connecting key 7 between scrambler input shaft 8 and the shaft coupling 6; can realize relative slip; increased the axial permission displacement of scrambler input shaft 8; make scrambler input shaft 8 and scrambler 9 not be vulnerable to gear shaft 3 and produce vibratory impulse, thereby protection scrambler 9 prolongs its serviceable life.In addition, connecting key 7 herein is preferably flat key, compares existing screw and connects, and connecting key 7 has increased the area that is connected between scrambler input shaft 8 and the shaft coupling 6, has increased reliable transmission, has improved the revolution measuring accuracy.
Adopt clearance fit between connecting key 7 and the keyway among this embodiment, the gap between the two is preferably 0.01mm.Should be understood that the utility model does not limit the gap between connecting key and the keyway, this gap can make realizes between connecting key and the keyway that slip gets final product; Different values can be selected according to the concrete structure of the tested machinery of reality in this gap.
In other embodiments, connecting key 7 can also be fixedly installed on scrambler input shaft 8 or the shaft coupling 6; In addition, gear shaft 3(is tested turning axle) and shaft coupling 6 between also connecting key can be set, adopt key to connect, realize axial relative slip.
Correspondingly, embodiment of the present utility model also provides a kind of engineering machinery, and it is provided with aforesaid rotating angle measurement apparatus.This project machinery is preferably rotary drilling rig, as mentioned above, the upper body of rotary drilling rig is connected by pivoting support with underframe, tested turning axle is connected with pivoting support lower end (being the underframe 1 of rotary drilling rig), scrambler is arranged on the pivoting support upper end (being the upper body 4 of rotary drilling rig) of rotary drilling rig, and concrete connection can be referring to record and Fig. 1 of above-described embodiment.
When realizing that by pivoting support the upper body 4 of rotary drilling rig is when underframe 1 rotates, the centre of gyration that supporting is changeed in rotating angle measurement apparatus and upper body 4 wraparounds rotates synchronously, driving tested turning axle (being gear shaft 3) simultaneously rotates synchronously, the outer rotor 2 of gear shaft 3 bottoms and the ring gear engagement on the underframe 1, thereby outer rotor 2 is the rotation center rotation with self axle center, scrambler 9 further calculates the anglec of rotation of upper body 4 relative underframe 1 by the rotational angle of prototype gear axle 3.
Can make fuselage produce huge vibration during rotary drilling rig work, this rotating angle measurement apparatus is when carrying out surveying work, can be by the relative slip between scrambler input shaft and the shaft coupling, the vibration that the buffer gear cold axle causes, the impact that the protection scrambler is not brought by rotary drilling rig self vibration prolongs its serviceable life; Simultaneously, adopt connecting key to connect, the reliable transmission between shaft coupling and the scrambler input shaft gets a promotion, and then improves the revolution measuring accuracy of rotating angle measurement apparatus.In addition, shaft coupling preferably adopts flexible clutch, and it also can relax impact to a certain extent.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (8)
1. a rotating angle measurement apparatus is characterized in that, comprises scrambler (9), tested turning axle, shaft coupling (6) and connecting key (7), and described scrambler (9) comprises scrambler input shaft (8);
Be provided with the gap between described tested turning axle and the described scrambler input shaft (8), and connect by described shaft coupling (6);
Described tested turning axle and/or described scrambler input shaft (8) can be connected with described shaft coupling (6) axially slidably by described connecting key (7).
2. rotating angle measurement apparatus according to claim 1 is characterized in that, described connecting key (7) is flat key.
3. rotating angle measurement apparatus according to claim 2 is characterized in that, described shaft coupling (6) is flexible clutch.
4. according to any described rotating angle measurement apparatus among the claim 1-3, it is characterized in that, described scrambler input shaft (8) can be connected with described shaft coupling (6) axially slidably by described connecting key (7), and described tested turning axle is fixedlyed connected with described shaft coupling (6) by screw.
5. rotating angle measurement apparatus according to claim 4 is characterized in that,
Be provided with the keyway with described connecting key (7) clearance fit on described scrambler input shaft (8) and the described shaft coupling (6); Perhaps,
Described connecting key (7) is fixedly installed on the described scrambler input shaft (8), and the correspondence position on the described shaft coupling (6) offers the keyway with described connecting key (7) clearance fit.
6. rotating angle measurement apparatus according to claim 5 is characterized in that, the gap between described connecting key (7) and the described keyway is 0.01mm.
7. an engineering machinery is characterized in that, is provided with as any described rotating angle measurement apparatus among the claim 1-6.
8. engineering machinery according to claim 7 is characterized in that, described engineering machinery is rotary drilling rig, and the upper body of described rotary drilling rig (4) is connected by pivoting support with underframe (1);
Described tested turning axle is connected with the pivoting support lower end of described rotary drilling rig, and described scrambler (9) is arranged on the pivoting support upper end of described rotary drilling rig.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220739435 CN203069171U (en) | 2012-12-28 | 2012-12-28 | Rotation angle measurement device and engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220739435 CN203069171U (en) | 2012-12-28 | 2012-12-28 | Rotation angle measurement device and engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203069171U true CN203069171U (en) | 2013-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220739435 Expired - Fee Related CN203069171U (en) | 2012-12-28 | 2012-12-28 | Rotation angle measurement device and engineering machinery |
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|---|---|
| CN (1) | CN203069171U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105783848A (en) * | 2016-04-28 | 2016-07-20 | 同济大学 | Rail vehicle secondary rotation micro-angle measurement device |
| US9970789B2 (en) | 2015-10-23 | 2018-05-15 | Industrial Technology Research Institute | Automatic angle-measured apparatus and method using the same |
| CN115164015A (en) * | 2022-07-11 | 2022-10-11 | 徐州徐工矿业机械有限公司 | Engineering machine tool rotary platform gyration angle monitoring devices |
-
2012
- 2012-12-28 CN CN 201220739435 patent/CN203069171U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9970789B2 (en) | 2015-10-23 | 2018-05-15 | Industrial Technology Research Institute | Automatic angle-measured apparatus and method using the same |
| CN105783848A (en) * | 2016-04-28 | 2016-07-20 | 同济大学 | Rail vehicle secondary rotation micro-angle measurement device |
| CN105783848B (en) * | 2016-04-28 | 2018-11-02 | 同济大学 | A kind of micro- angle measurement unit of two system of rail vehicle revolution |
| CN115164015A (en) * | 2022-07-11 | 2022-10-11 | 徐州徐工矿业机械有限公司 | Engineering machine tool rotary platform gyration angle monitoring devices |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20130717 Termination date: 20201228 |
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| CF01 | Termination of patent right due to non-payment of annual fee |