CN203877798U - Slider adjustment device, telescopic arm and engineering machinery - Google Patents
Slider adjustment device, telescopic arm and engineering machinery Download PDFInfo
- Publication number
- CN203877798U CN203877798U CN201420182399.5U CN201420182399U CN203877798U CN 203877798 U CN203877798 U CN 203877798U CN 201420182399 U CN201420182399 U CN 201420182399U CN 203877798 U CN203877798 U CN 203877798U
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- China
- Prior art keywords
- slide
- hole
- rotating shaft
- slide block
- slide opening
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Abstract
The utility model provides a slider adjustment device, a telescopic arm and engineering machinery. The slider adjustment device comprises a slider, a base and a rotation shaft, wherein a sliding hole is formed in the base, and an end cover is arranged at one end of the sliding hole; the slider is slidingly arranged in the sliding hole in a sleeving manner and in check fit with the sliding hole; the first end of the rotation shaft is in threaded connection with the slider, the middle of the rotation shaft is positioned in the sliding hole, and the second end of the rotation shaft penetrates out of the end cover; a first limit step part butted against the inner end face of the end cover is arranged on the rotation shaft. According to the slider adjustment device, the labor intensity of workers in the process of adjusting the slider mounting height can be reduced, and the assembly efficiency of a telescopic arm rest can be improved.
Description
Technical field
The utility model relates to engineering machinery field, more specifically, relates to a kind of slide adjustment, telescopic boom and construction machinery and equipment.
Background technology
On a joint arm in the adjacent two joint arms of crane telescopic jib, slide block is installed, on another joint arm, is formed with slide rail, slide block and slide rail bearing fit, to lead and to support inner side joint the flexible of arm.And be the stability that ensures adjacent two joint arm relative motions, between slide block and slide rail, must ensure higher free-running fit precision.Because the sectional dimension of adjacent two joint arms is larger, be difficult to ensure dimensioned precision from technique, need to ensure the tolerance clearance between slide block and slide rail by the setting height(from bottom) of adjusting slide block in assembling link.In prior art, the common practices of adjusting slider setting height(from bottom) is first by acromere arm and internal segment arm pre-assy, measures the gap between the two, according to gap, installs certain thickness adjustment pad on slide block additional.Conventionally, in order to reach desirable tolerance clearance, need repeated disassembled and assembled slide block to coordinate with the pad of different-thickness in assembling process, cause the labor strength of slide block setting height(from bottom) control process large, telescopic boom jib efficiency of assembling is low.
Utility model content
The utility model aims to provide a kind of slide adjustment, can reduce the labor strength of slide block setting height(from bottom) control process, simplifies the control process of slide block setting height(from bottom).
A kind of slide adjustment that the utility model provides, comprises slide block and matrix, and matrix has slide opening, and one end of slide opening is provided with end cap; Slide block is set in slidably in slide opening and with slide opening spline and coordinates; Rotating shaft, first end and the slide block of rotating shaft are spirally connected, and middle part is positioned at slide opening, and the second end is passed by end cap; In rotating shaft, have with the inner end surface of end cap and compress the first limited step portion contacting.
Further, slide block comprises orienting lug and threaded block; Orienting lug is set in slidably in slide opening and with slide opening spline and coordinates; The end that orienting lug is positioned at slide opening offers the first hole and the second hole that are connected, and the first hole is positioned at the outside in the second hole, and the first aperture, hole is greater than the second aperture, hole; Between the first hole and the second hole, form the second limited step portion; Threaded block is set in the first hole and with the first hole spline and coordinates, and a side end face of threaded block compresses and contacts with the second limited step portion; The middle part of threaded block is provided with the tapped through hole for being spirally connected with rotating shaft.
Further, threaded block and the first hole are interference fit.
Further, slide opening is surrounded by the sheet material being welded on matrix, and/or the cross-sectional plane of slide opening is rectangle.
Further, end cap and matrix removably connect.
Further, the first limited step portion is formed by the annular flange in rotating shaft.
Further, the second end of rotating shaft be provided with for spanner coordinate tangent plane.
The utility model also provides a kind of telescopic boom, on the jib of at least one joint arm of this telescopic boom, is provided with above-mentioned slide adjustment.
The utility model also provides a kind of construction machinery and equipment, and this project machinery is provided with above-mentioned slide adjustment.
The slide adjustment that the utility model provides, by slide opening is set on matrix, is provided with end cap in one end of slide opening; Slide block is set in slidably in slide opening and with slide opening spline and coordinates; First end and the slide block of rotating shaft are spirally connected, and middle part is positioned at slide opening, and the second end is passed by end cap; In rotating shaft, there is the technical scheme that compresses the first limited step portion contacting with the inner end surface of end cap, in the time need regulating slide block setting height(from bottom), turn rotating shaft the second end and make rotating shaft rotation, spline between slide block and slide opening coordinates the rotational freedom of slide block is limited, the rotation of rotating shaft is just converted into the feed motion of slide block, distance between slide block and the first limited step portion is changed, and then realized the adjusting of slide block setting height(from bottom).Adopt the technical solution of the utility model, because the process of adjusting slider setting height(from bottom) only need to turn rotating shaft, do not need repeated disassembled and assembled slide block, pad for thickening need to be installed on slide block yet, thereby reduce staff's labour intensity, simplified the control process of slide block setting height(from bottom).
Brief description of the drawings
The accompanying drawing that forms a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
The master that Fig. 1 has schematically shown the slide adjustment that the utility model the first embodiment provides looks cross-section structure;
Fig. 2 has schematically shown the right elevation of Fig. 1 shaft;
The master that Fig. 3 has schematically shown the slide adjustment that the utility model the second embodiment provides looks cross-section structure.
Detailed description of the invention
It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the application can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
The master that Fig. 1 shows the slide adjustment that the utility model the first embodiment provides looks cross-section structure.In the present embodiment, this slide adjustment describes as an example of the telescopic boom that is applied to weight-lifting equipment example, and as shown in the figure, this slide adjustment comprises slide block 1, matrix 2, end cap 3 and rotating shaft 4.
Matrix 2 can be the jib of arbitrary joint arm of telescopic jib, and matrix 2 has slide opening 20, and end cap 3 is arranged on one end of slide opening 20.Slide block 1 is set in slide opening 20 slidably, and slide block 1 coordinates with slide opening 20 splines, so that relatively rotating between slide block 1 and slide opening 20 is limited (rotational freedom that is slide block 1 is limited).Realize spline between slide block 1 and slide opening 20 and coordinate and can have various ways, such as slide block 1 can adopt the non-cylindrical configurations such as rectangular column, and the shape of cross section of slide opening 20 and the outer contour shape of slide block 1 are matched.It will be understood by those skilled in the art that slide block 1 stretches out from the other end of slide opening 20, slide block 1 is positioned in the part outside slide opening 20 other ends and is formed with bearing fit face 10, and slide block 1 coordinates with slide rail 5 moving contacts on adjacent segments arm by bearing fit face 10.The first end (left end in Fig. 1) of rotating shaft 4 is spirally connected with slide block 1, and middle part is positioned at slide opening 20, the second ends (right-hand member in Fig. 1) and is passed by end cap 3.In rotating shaft 4, have with the inner end surface of end cap 3 and compress the first limited step portion 41 contacting, the inner end surface of end cap 3 refers to the end face of end cap 3 towards slide opening 20 1 sides.
The slide adjustment that the present embodiment provides, in the time need regulating the setting height(from bottom) D of slide block 1, the second end that turns rotating shaft 4 rotates rotating shaft 4, spline between slide block 1 and slide opening 20 coordinates the rotational freedom of slide block 1 is limited, the process control rotating shaft 4 of rotating shaft 4 does not move axially, the rotation of rotating shaft 4 is just converted into the feed motion of slide block 1, slide block 1 moves linearly and makes distance between slide block 1 and the first limited step portion 41 change (corresponding to the variation of slide block setting height(from bottom) D) along rotating shaft 4, thereby realize the adjusting of slide block setting height(from bottom), so that the tolerance clearance between slide block 1 and slide rail 5 can reach perfect condition.Adopt the technical scheme of the present embodiment, because the process of adjusting slider setting height(from bottom) D only need to turn rotating shaft 4, do not need repeated disassembled and assembled slide block 1, pad for thickening need to be installed on slide block 1 yet, the height adjustment operation of slide block is easily implemented, thereby reduce staff's labour intensity, simplified the control process of slide block setting height(from bottom), improved the efficiency of assembling of telescopic jib.In addition, the tolerance clearance between all right fine adjustment slide block 1 of the technical scheme of employing the present embodiment and slide rail 5.In addition the negative thread length that, those skilled in the art will appreciate that slide block 1 can be determined according to the height adjustment range of slide block 1.
Preferably, in the present embodiment, end cap 3 removably connects by bolt and matrix 2, like this, in the time of slide block 1 excessive wear, by removing end cap 3, rotating shaft 4 can be taken out together with slide block 1, with the slide block 1 more renewing easily, thereby improve the maintenance efficiency of slide block 1.Certainly, in other embodiments, end cap 3 can be integral type structure with matrix 2.
In addition, can find out in conjunction with Fig. 2, the second end of rotating shaft 4 be provided with further for spanner coordinate tangent plane 42, like this, when rotating shaft 4 by spanner can make operation more laborsaving.The first limited step portion 41 can be formed by the annular flange 43 in rotating shaft 4, be convenient to like this processing and manufacturing, and the weight of rotating shaft 4 is lighter.
Preferably, slide opening 20 can be surrounded by the sheet material 21 being welded on matrix 2, and in the time that slide block 1 adopts the non-cylindrical configurations such as rectangular column, the sheet material 21 being welded on matrix 2 can surround the slide opening 20 that cross-sectional plane is the shapes such as rectangle easily like this.
The master that Fig. 3 shows the slide adjustment that the utility model the second embodiment provides looks cross-section structure, is the structure of slide block 1 with the difference of above-mentioned the first embodiment, and in the present embodiment, slide block 1 comprises orienting lug 11 and threaded block 12 further.Wherein orienting lug 11 is set in slide opening 20 slidably, and orienting lug 11 coordinates so that relatively rotating between orienting lug 11 and slide opening 20 is limited with slide opening 20 splines.Bearing fit face 10 is correspondingly positioned on orienting lug 11.The end that orienting lug 11 is positioned at slide opening 20 offers the first hole 111 and the second hole 112 that are connected, the first hole 111 is positioned at the outside in the second hole 112, and the first 111 apertures, hole is greater than 112 apertures, the second hole, between the first hole 111 and the second hole 112, form the second limited step portion 110, the second holes 112 and be preferably blind hole.
Threaded block 12 is set in the first hole 111 and coordinates with the first hole 111 splines, so that relatively rotating between threaded block 12 and orienting lug 11 is limited.Spline between threaded block 12 and the first hole 111 coordinates can adopt various ways realization, for example, adopt the mode of interference fit to be assembled together threaded block 12 and the first hole 111, axial motion and circumferential movement between interference fit threaded block 12 and orienting lug 11 together are all limited; Or the first hole 111 can adopt rectangular opening, threaded block 12 is correspondingly rectangular block.
One side end face of threaded block 12 compresses and contacts with the second limited step portion 110, and the middle part of threaded block 12 is provided with the tapped through hole for being spirally connected with rotating shaft 4, and the first end of rotating shaft 4 and this tapped through hole are spirally connected.
The slide adjustment of the present embodiment is in the time need regulating the setting height(from bottom) of slide block 1, turning rotating shaft 4 second ends rotates rotating shaft 4, because of between threaded block 12 and orienting lug 11 for spline coordinates, spline between orienting lug 11 and slide opening 20 coordinates the rotational freedom of slide block 1 is limited, the process control rotating shaft 4 of rotating shaft 4 does not move axially, the rotation of rotating shaft 4 is just converted into the feed motion of threaded block 12, threaded block 12 moves linearly and the distance between threaded block 12 and the first limited step portion 41 is changed along rotating shaft 4, thereby setting height(from bottom) that can adjusting slider 1, make the tolerance clearance between slide block 1 and slide rail can reach perfect condition.
Particularly, in the time that threaded block 12 moves to the left side in Fig. 3, can promote orienting lug 11 and synchronously be moved to the left, increase the setting height(from bottom) of slide block 1; In the time that threaded block 12 moves right, because slide rail and orienting lug 11 compress the power applying mutually, the second limited step portion 110 of orienting lug 11 is still adjacent to threaded block 12, therefore orienting lug 11 also moves right and being adjacent to of maintenance and threaded block 12, and has so just reduced the setting height(from bottom) of slide block 1.
Adopt the technical scheme of the present embodiment, because the process of adjusting slider setting height(from bottom) only need to turn rotating shaft 4, do not need repeated disassembled and assembled slide block 1, pad for thickening need to be installed on slide block 1 yet, the height adjustment operation of slide block 1 is easily implemented, thereby reduce staff's labour intensity, simplified the control process of slide block setting height(from bottom), improved the efficiency of assembling of telescopic jib.In addition, the tolerance clearance between all right fine adjustment slide block 1 of the technical scheme of employing the present embodiment and slide rail.In addition the axial length that, those skilled in the art will appreciate that the second hole 112 can be determined according to the height adjustment range of slide block 1.
It should be noted that, although in the utility model the various embodiments described above, slide adjustment all describes as example to be applied to telescopic boom, but it will be appreciated by those skilled in the art that, the field of application of this slide adjustment is not limited to telescopic boom, in office what is the need for will regulate slide block setting height(from bottom), so that slide block can adopt the technical solution of the utility model with the structure between parts with appropriate clearance that matches.
The utility model embodiment also provides a kind of telescopic boom, on the jib of at least one joint arm of this telescopic boom, is provided with above-mentioned slide adjustment.The slide adjustment providing because of the utility model embodiment has above-mentioned technique effect, and the telescopic boom that is provided with this slide adjustment also should possess corresponding technique effect, does not repeat them here.
The utility model embodiment also provides a kind of construction machinery and equipment, and this project machinery comprises hoisting crane, and this project machinery is provided with above-mentioned slide adjustment.The slide adjustment providing because of the utility model embodiment has above-mentioned technique effect, and the construction machinery and equipment that is provided with this slide adjustment also should possess corresponding technique effect, does not repeat them here.
These are only 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 amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (9)
1. a slide adjustment, comprises slide block (1) and matrix (2), it is characterized in that,
Described matrix (2) has slide opening (20), and one end of described slide opening (20) is provided with end cap (3);
Described slide block (1) is set in slidably in described slide opening (20) and with described slide opening (20) spline and coordinates;
Rotating shaft (4), the first end of described rotating shaft (4) and described slide block (1) are spirally connected, and middle part is positioned at described slide opening (20), and the second end is passed by described end cap (3); In described rotating shaft (4), have with the inner end surface of described end cap (3) and compress the first limited step portion (41) contacting.
2. slide adjustment according to claim 1, is characterized in that,
Described slide block (1) comprises orienting lug (11) and threaded block (12);
Described orienting lug (11) is set in slidably in described slide opening (20) and with described slide opening (20) spline and coordinates;
The end that described orienting lug (11) is positioned at described slide opening (20) offers the first hole (111) and the second hole (112) that are connected, described the first hole (111) is positioned at the outside in described the second hole (112), and aperture, described the first hole (111) is greater than aperture, described the second hole (112); Between described the first hole (111) and described the second hole (112), form the second limited step portion (110);
Described threaded block (12) is set in described the first hole (111) and coordinates with described the first hole (111) spline, and a side end face of described threaded block (12) compresses and contacts with described the second limited step portion (110);
The middle part of described threaded block (12) is provided with the tapped through hole for being spirally connected with described rotating shaft (4).
3. slide adjustment according to claim 2, is characterized in that, described threaded block (12) is interference fit with described the first hole (111).
4. according to the slide adjustment described in any one in claims 1 to 3, it is characterized in that, described slide opening (20) is surrounded by the sheet material (21) being welded on described matrix (2), and/or the cross-sectional plane of described slide opening (20) is rectangle.
5. according to the slide adjustment described in any one in claims 1 to 3, it is characterized in that, described end cap (3) removably connects with described matrix (2).
6. according to the slide adjustment described in any one in claims 1 to 3, it is characterized in that, described the first limited step portion (41) is formed by the annular flange (43) in described rotating shaft (4).
7. according to the slide adjustment described in any one in claims 1 to 3, it is characterized in that, the second end of described rotating shaft (4) be provided with for spanner coordinate tangent plane (42).
8. a telescopic boom, is characterized in that, is provided with the slide adjustment described in any one in claim 1 to 7 on the jib of at least one joint arm of described telescopic boom.
9. a construction machinery and equipment, is characterized in that, is provided with the slide adjustment described in any one in claim 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420182399.5U CN203877798U (en) | 2014-04-15 | 2014-04-15 | Slider adjustment device, telescopic arm and engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420182399.5U CN203877798U (en) | 2014-04-15 | 2014-04-15 | Slider adjustment device, telescopic arm and engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203877798U true CN203877798U (en) | 2014-10-15 |
Family
ID=51678323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420182399.5U Expired - Fee Related CN203877798U (en) | 2014-04-15 | 2014-04-15 | Slider adjustment device, telescopic arm and engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203877798U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109084920A (en) * | 2018-06-14 | 2018-12-25 | 天津大学 | A kind of high-precision torque sensor floating junction device |
-
2014
- 2014-04-15 CN CN201420182399.5U patent/CN203877798U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109084920A (en) * | 2018-06-14 | 2018-12-25 | 天津大学 | A kind of high-precision torque sensor floating junction device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141015 Termination date: 20210415 |