CN203585093U - Embedded type composite sliding bearing - Google Patents
Embedded type composite sliding bearing Download PDFInfo
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- CN203585093U CN203585093U CN201320641857.2U CN201320641857U CN203585093U CN 203585093 U CN203585093 U CN 203585093U CN 201320641857 U CN201320641857 U CN 201320641857U CN 203585093 U CN203585093 U CN 203585093U
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- hard alloy
- alloy blocks
- mating groove
- sliding bearing
- axle sleeve
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Abstract
The utility model discloses an embedded type composite sliding bearing. The embedded type composite sliding bearing comprises a shaft sleeve, a bearing bush, a first hard alloy block and a second hard alloy block, wherein the shaft sleeve is internally provided with a first through hole; the bearing bush can be in sliding fit with the first through hole; the second bearing bush is internally provided with a second through hole; the first hard alloy block is arranged on the inner wall of the shaft sleeve and the second hard alloy block is arranged on the outer wall of the bearing bush; and the first hard alloy block is matched with the second hard alloy block. The embedded type composite sliding bearing is applicable to a usage occasion where a common sliding bearing cannot meet the special requirements; the embedded type composite sliding bearing is convenient to mount, detach and transport, and can be used in the occasion with high wear-resisting requirements; a lubricant is not needed and the sliding bearing is not influenced by the environment temperature in the working process; the sliding bearing can work continuously for a long time in a severe environment and is hardly limited by a space volume.
Description
Technical field
The purpose of this utility model is to be turbogenerator sliding bearing, simultaneously can for petroleum industry, Aero-Space industry and limited, the high rotating speed high request of spatial volume etc. must be used sliding bearing, plain bearing cannot meet the occasion of use.
Background technique
Along with the development of petroleum industry While drilling system, traditional use lithium cell cannot meet the requirement of each equipment for logging system provides the method for power supply, in down-hole, the equipment of high-power, the long work in While drilling system is more and more, thus high-power slurry generator utilize mud kinetic energy wash away turbine drive generator generating for providing of power technology is provided While drilling system may.
But, drive the embedded composite sliding bearing technology of turbine rotation to become a large bottleneck of generator, due to turbine utilization is that the kinetic energy of mud washes away vane rotary, the rotation of impeller drives its rotation by embedded composite sliding bearing, therefore, the design of embedded composite sliding bearing becomes its main bugbear, during design, must consider high temperature, corrosion-resistant, wear-resisting, be easy to install, the factor such as lubricated, installing space, make the embedded composite sliding bearing of common material and method design cannot meet usage requirement.
Model utility content
The utility model is intended to solve at least to a certain extent one of above-mentioned technical problem of the prior art.For this reason, an object of the present utility model is to propose a kind of embedded composite sliding bearing, and described sliding bearing structure and assembling are simple, and long service life.Embedded sliding bearing of the present utility model can be turbogenerator sliding bearing, can be applied to that petroleum industry, Aero-Space industry and limited, the high rotating speed high request of spatial volume etc. must be used sliding bearing and plain bearing cannot meet the occasion of use simultaneously.
According to embedded composite sliding bearing of the present utility model, comprising: axle sleeve, bearing shell, the first hard alloy blocks and the second hard alloy blocks.In described axle sleeve, there is the first through hole; Described bearing shell is engaged in described the first through hole slidably, has the second through hole in described bearing shell; Described the first hard alloy blocks is located on the inwall of described axle sleeve, and described the second hard alloy blocks is located on the outer wall of described bearing shell, and described the first hard alloy blocks and described the second hard alloy blocks are suitable.
According to embedded composite sliding bearing of the present utility model, by the first hard alloy blocks being located on the inwall of axle sleeve, the second hard alloy blocks is located on bearing shell outer wall, quality of product and the working life of embedded composite sliding bearing have been improved, and sliding bearing is applicable to the use occasion of the specific (special) requirements that plain bearing cannot be satisfied, installation, dismounting, convenient transportation, wear resistance requires high occasion, oiling agent need not be provided, not influenced by ambient temperature during work, can, at long time continuous working under rugged environment, be subject to hardly the restriction of spatial volume.
In addition, the embedded composite sliding bearing above-mentioned according to the utility model, can also have following additional technical characteristics:
The internal face of described axle sleeve is provided with the first mating groove extending along the bearing of trend of described the first through hole, described the first hard alloy blocks is engaged in described the first mating groove, the outer wall of described bearing shell is provided with the second mating groove extending along the bearing of trend of described the second through hole, and described the second hard alloy blocks is engaged in described the second mating groove.Thus, be convenient to the cooperation of the first hard alloy blocks and axle sleeve, and be convenient to the cooperation of the second hard alloy blocks and bearing shell, improved the efficiency of assembling of this bearing, and, also improve the intensity that coordinates of the first hard alloy blocks and the first mating groove, and improve the intensity that coordinates of the second hard alloy blocks and the second mating groove.
Described the first mating groove is the shape that opening size is little and Inner Dimension is large, the shape of the shape of described the first hard alloy blocks and described the first mating groove is suitable, described the second mating groove is the shape that opening size is little and Inner Dimension is large, and the shape of the shape of described the second hard alloy blocks and described the second mating groove is suitable.Thus, the first hard alloy blocks can not come off from the first mating groove opening easily, and the second hard alloy layer can not come off from the second mating groove opening easily.Improve the first hard alloy blocks and be engaged in the stability in the first mating groove, and the second hard alloy blocks is engaged in the stability in the second mating groove, thereby improved this antiwhip, avoid damaging, increase its working life.
The cross section of described the first mating groove is wedge-type shape, the cross section of described the first hard alloy blocks is the wedge-type shape suitable with the cross section of described the first mating groove, the cross section of described the second mating groove is wedge-type shape, and the cross section of described the second hard alloy blocks is the wedge-type shape suitable with the cross section of described the second mating groove.Thus, improve the manufacturing efficiency of this bearing, and further increased the structure stability of embedded composite sliding bearing.
The cross section of described the first mating groove is isosceles trapezoid, and the cross section of described the second mating groove is isosceles trapezoid.Thus, can make axle sleeve and bearing bush structure simple, easily manufactured.
Described the first mating groove is circumferential spaced apart multiple along the internal face of described axle sleeve, and every two adjacent identical distances in described mating groove interval.Thus, be convenient to contact and cooperation between the first hard alloy blocks and the second hard alloy blocks, improved the performance of this bearing, make the first hard alloy blocks and the second hard alloy blocks layout more reasonable.
Described axle sleeve is drum, and described bearing shell is the suitable drum of internal surface of outer surface and described axle sleeve.Thus, be convenient to the moulding of axle sleeve and bearing shell, and be that stress distribution on axle sleeve and bearing shell is even, improved manufacturing efficiency and the performance of this bearing.
Described the first mating groove and described the first hard alloy blocks be by Spielpassung or transition fit, described the second mating groove with described the second hard alloy blocks by Spielpassung or excessively coordinate.Thus, make the first hard alloy blocks and the second hard alloy blocks not fragile, the working life of having improved this bearing.
Described the first hard alloy blocks is welded on described axle sleeve by weld-aiding cream, and described the second hard alloy blocks is welded on described bearing shell by weld-aiding cream.Thus, the first hard alloy blocks is coordinated firmly with the first mating groove, and the second hard alloy blocks is coordinated firmly with the second mating groove, this antiwhip and working life have been improved, but also make the first hard alloy blocks and the second hard alloy blocks easy for installation, make the manufacturing process of this bearing simple, feasibility is strong.
The end of at least one in described axle sleeve and described the first hard alloy blocks is provided with the first stop member for the first hard alloy blocks described in backstop, and the end end face of at least one in described bearing shell and described the second hard alloy blocks is provided with the second stop member for the second hard alloy blocks described in backstop.Thus, further improved the stability of the first hard alloy blocks and the second hard alloy blocks, made this axle sleeve not fragile, the working life of further improving sliding bearing.
Accompanying drawing explanation
Fig. 1 is the generalized section of an embodiment's of the present utility model embedded composite sliding bearing.
Fig. 2 be an embodiment's of the present utility model axle sleeve of embedded composite sliding bearing and the first hard alloy blocks coordinate generalized section.
Fig. 3 is an embodiment's of the present utility model bearing shell of embedded composite sliding bearing and the generalized section of the second hard alloy blocks cooperation.
Reference character:
Embedded composite sliding bearing 100;
The first hard alloy blocks 31; The second hard alloy blocks 32.
Embodiment
Describe embodiment of the present utility model below in detail, described embodiment's example is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the embodiment who is described with reference to the drawings, be exemplary, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", orientation or the position relationship of indications such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " be only for describing object, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characteristics.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the present utility model, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the utility model, unless otherwise clearly defined and limited, the terms such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or integral; Can be mechanical connection, can be also electrical connection; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term in the utility model.
In the utility model, unless otherwise clearly defined and limited, First Characteristic Second Characteristic it " on " or D score can comprise that the first and second features directly contact, also can comprise that the first and second features are not directly contacts but by the other feature contact between them.And, First Characteristic Second Characteristic " on ", " top " and " above " comprise First Characteristic directly over Second Characteristic and oblique upper, or only represent that First Characteristic level height is higher than Second Characteristic.First Characteristic Second Characteristic " under ", " below " and " below " comprise First Characteristic under Second Characteristic and tiltedly, or only represent that First Characteristic level height is less than Second Characteristic.
Describe with reference to the accompanying drawings the utility model embodiment's embedded composite sliding bearing 100 in detail.
As shown in Figure 1 to Figure 3, according to the utility model embodiment's embedded composite sliding bearing, comprising: axle sleeve 1, bearing shell 2, the first hard alloy blocks 31 and the second hard alloy blocks 32.
Particularly, in axle sleeve 1, there is the first through hole 101.Bearing shell 2 is engaged in the first through hole 101 slidably, has the second through hole 201 in bearing shell 2.In other words, bearing shell 2 is set in axle sleeve 1 slidably.The first hard alloy blocks 31 is located on the inwall of axle sleeve 1, and the second hard alloy blocks 32 is located on the outer wall of bearing shell 2, and the first hard alloy blocks 31 and the second hard alloy blocks 32 are suitable.Because hard alloy blocks has more crisp characteristic, therefore the first hard alloy blocks 31 is embedded on the inwall of axle sleeve 1, axle sleeve 1 can slow down the impact force of outer bound pair the first hard alloy blocks 31, reduces the possibility that the first hard alloy blocks 31 damages in transportation, installation and using process at embedded composite sliding bearing 100.Similarly, the second hard alloy blocks 32 is embedded on the outer wall of bearing shell 2, also can reduce the possibility that the second hard alloy blocks 32 damages in transportation, installation and using process at embedded composite sliding bearing 100.Thus, improve quality of product and the working life of embedded composite sliding bearing 100.
In addition, the premium properties such as it is high temperature resistant, corrosion-resistant, wear-resisting that cemented carbide has, therefore, by arranging on the inwall at axle sleeve 1 on the outer wall of the first hard alloy blocks 31 and bearing shell 2, the second hard alloy blocks 32 is set, can effectively improve high temperature resistant, the corrosion-resistant and wear-resisting performance of axle sleeve 1 and bearing shell 2, and then improve high temperature resistant, the corrosion-resistant and wear-resisting performance of embedded composite sliding bearing 100.
In brief, according to the utility model embodiment's embedded composite sliding bearing, by the first hard alloy blocks 31 is located on the inwall of axle sleeve 1, the second hard alloy blocks 32 is located on bearing shell 2 outer walls, has improved quality of product and the working life of embedded composite sliding bearing 100.And sliding bearing 100 is applicable to the use occasion of the specific (special) requirements that plain bearing cannot be satisfied, installation, dismounting, convenient transportation, wear resistance requires high occasion, oiling agent need not be provided, not influenced by ambient temperature during work, can, at long time continuous working under rugged environment, be subject to hardly the restriction of spatial volume.
Further, in embodiments more of the present utility model, the internal face of axle sleeve 1 is provided with the first mating groove (not shown) extending along the bearing of trend of the first through hole 101 (i.e. the direction of vertical paper as shown in Figure 1), the first hard alloy blocks 31 is engaged in the first mating groove, the outer wall of bearing shell 2 is provided with the second mating groove (not shown) extending along the bearing of trend of the first through hole 101, and the second hard alloy blocks 32 is engaged in the second mating groove.That is to say, the first mating groove and the second mating groove extend along the length direction of axle sleeve 1, and the first mating groove is parallel in vertical paper direction with the second mating groove.Thus, be convenient to the cooperation of the first hard alloy blocks 31 and axle sleeve 1, and be convenient to the cooperation of the second hard alloy blocks 32 and bearing shell 2, improved the efficiency of assembling of this bearing, and, also improve the intensity that coordinates of the first hard alloy blocks 31 and the first mating groove, and improve the intensity that coordinates of the second hard alloy blocks 32 and the second mating groove.
Further, length and the shape of the first mating groove and the first hard alloy blocks 31 are suitable.Length and the shape of the second mating groove and the second hard alloy blocks 32 are suitable.
Advantageously, the first mating groove is the shape that opening size is little and Inner Dimension is large, the shape of the shape of the first hard alloy blocks 31 and the first mating groove is suitable, the second mating groove is the shape that opening size is little and Inner Dimension is large, and the shape of the shape of the second hard alloy blocks 32 and described the second mating groove is suitable.Thus, the first hard alloy blocks 31 can not come off from the first mating groove opening easily, and the second hard alloy layer 32 can not come off from the second mating groove opening easily.Improve the first hard alloy blocks 31 and be engaged in the stability in the first mating groove, and the second hard alloy blocks 32 is engaged in the stability in the second mating groove, thereby improved this antiwhip, avoid damaging, increase its working life.
Alternatively, the cross section of the first mating groove is wedge-type shape, the cross section of the first hard alloy blocks 31 is the wedge-type shape suitable with the cross section of the first mating groove, the cross section of the second mating groove is wedge-type shape, and the cross section of the second hard alloy blocks 32 is the wedge-type shape suitable with the cross section of described the second mating groove.The first mating groove and second mating groove of wedge-type shape are easy to machine shaping, are convenient to the moulding of the first mating groove and the second mating groove and the first hard alloy blocks 31 and the second hard alloy blocks 32.Thus, improve the manufacturing efficiency of this bearing, and further increased the structure stability of embedded composite sliding bearing 100.
Alternatively, the cross section of the first mating groove is isosceles trapezoid, and the cross section of the second mating groove is isosceles trapezoid.Thus, can make axle sleeve 1 and bearing shell 2 simple in structure, easily manufactured.
Further, the first mating groove is circumferential spaced apart multiple along the internal face of axle sleeve 1, and every two the first adjacent identical distances in mating groove interval.And in each the first mating groove, be equipped with the first hard alloy blocks 31,, in other words, the first hard alloy blocks 31 is also circumferential spaced apart multiple along the internal face of axle sleeve 1, and multiple the first hard alloy blocks 31 are suitable with multiple the first mating grooves.Advantageously, the second mating groove can be also circumferential spaced apart multiple along the outer wall of bearing shell 2, and every two the second adjacent identical distances in mating groove interval.And in each the second mating groove, be equipped with the second hard alloy blocks 32, also circumferential spaced apart multiple along the outer wall of bearing shell 2 of the second hard alloy blocks 32, thus, be convenient to contact and cooperation between the first hard alloy blocks 31 and the second hard alloy blocks 32, improved the performance of this bearing, make the first hard alloy blocks 31 and the second hard alloy blocks 32 layout more reasonable.
Advantageously, axle sleeve 1 is drum, and bearing shell 2 is the suitable drum of internal surface of outer surface and axle sleeve 1.Thus, be convenient to the moulding of axle sleeve 1 and bearing shell 2, and be that stress distribution on axle sleeve 1 and bearing shell 2 is even, improved manufacturing efficiency and the performance of this bearing.
Because hard alloy blocks is very crisp, therefore, axle sleeve 1 and the first hard alloy blocks 31 be by Spielpassung or transition fit, bearing shell 2 with the second hard alloy blocks 32 by Spielpassung or excessively coordinate.Like this, can avoid the first hard alloy blocks 31 and the second hard alloy blocks 32 to damage.Thus, make the first hard alloy blocks 31 and the second hard alloy blocks 32 not fragile, the working life of having improved this bearing.
Further, the first hard alloy blocks 31 is welded on axle sleeve 1 by weld-aiding cream, and the second hard alloy blocks 32 is welded on bearing shell 2 by weld-aiding cream.Thus, the first hard alloy blocks 31 is coordinated firmly with the first mating groove, and the second hard alloy blocks 32 is coordinated firmly with the second mating groove, this antiwhip and working life have been improved, but also make the first hard alloy blocks 31 and the second hard alloy blocks 32 easy for installation, make the manufacturing process of this bearing simple, feasibility is strong.
Particularly, the first hard alloy blocks 31 was coated weld-aiding cream before putting into the first mating groove, the second hard alloy blocks 32 was coated weld-aiding cream before putting into the second mating groove, then putting into High Temperature Furnaces heats, the first hard hard alloy blocks 31 will firmly be welded on the first mating groove, and the second hard alloy blocks 32 will be welded in the second mating groove securely.
Further, the end of at least one in axle sleeve 1 and the first hard alloy blocks 31 is provided with the first stop member (not shown), described the first stop member is for backstop the first hard alloy blocks 31, to avoid the first hard alloy blocks 31 to skid off from the two ends of the first mating groove.Particularly, the two ends of axle sleeve 1 (as shown in Figure 1 two ends on the vertical paper outward direction of axle sleeve 1) are respectively equipped with described the first stop member, or the two ends of the first hard alloy blocks 31 (as shown in Figure 1 two ends on the vertical paper outward direction of the first hard alloy blocks 31) is respectively equipped with described the first stop member, or the two ends of the two ends of axle sleeve 1 and the first hard alloy blocks 31 are equipped with described the first stop member.The end of at least one in bearing shell 2 and the second hard alloy blocks 32 is provided with the second stop member (not shown), and described the second stop member is for backstop the second hard alloy blocks 321, to avoid the second hard alloy blocks 31 to skid off from the two ends of the second mating groove.Particularly, the two ends of bearing shell 2 (as shown in Figure 2 two ends on the vertical paper outward direction of bearing shell 2) are respectively equipped with described the second stop member, or the two ends of the second hard alloy blocks 32 (as shown in Figure 2 two ends on the vertical paper outward direction of the second hard alloy blocks 31) is respectively equipped with described the second stop member, or the two ends of the two ends of bearing shell 2 and the second hard alloy blocks 32 are equipped with described the second stop member.Thus, further improved the stability of the first hard alloy blocks 31 and the second hard alloy blocks 32, made this axle sleeve not fragile, the working life of further improving sliding bearing 100.
In addition, according to the utility model embodiment's embedded composite sliding bearing, because the gap of selecting is less, even if the soldering flux having heated has a little defect, can not affect normal use yet, more can not cause coming off of hard alloy blocks, weld rear hard alloy blocks both ends of the surface and added upper baffle ring and prevent from coming off because weld defects causes hard alloy blocks.
In the description of this specification, the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, to the schematic statement of above-mentioned term not must for be identical embodiment or example.And specific features, structure, material or the feature of description can be with suitable mode combination in any one or more embodiments or example.In addition, those skilled in the art can engage the different embodiments that describe in this specification or example and combine.
Although illustrated and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment in scope of the present utility model, modification, replacement and modification.
Claims (10)
1. an embedded composite sliding bearing, is characterized in that, comprising:
Axle sleeve, has the first through hole in described axle sleeve;
Bearing shell, described bearing shell is engaged in described the first through hole slidably, has the second through hole in described bearing shell; And
The first hard alloy blocks and the second hard alloy blocks, described the first hard alloy blocks is located on the inwall of described axle sleeve, and described the second hard alloy blocks is located on the outer wall of described bearing shell, and described the first hard alloy blocks and described the second hard alloy blocks are suitable.
2. embedded composite sliding bearing according to claim 1, it is characterized in that, the internal face of described axle sleeve is provided with the first mating groove extending along the bearing of trend of described the first through hole, described the first hard alloy blocks is engaged in described the first mating groove, the outer wall of described bearing shell is provided with the second mating groove extending along the bearing of trend of described the first through hole, and described the second hard alloy blocks is engaged in described the second mating groove.
3. embedded composite sliding bearing according to claim 2, it is characterized in that, described the first mating groove is the shape that opening size is little and Inner Dimension is large, the shape of the shape of described the first hard alloy blocks and described the first mating groove is suitable, described the second mating groove is the shape that opening size is little and Inner Dimension is large, and the shape of the shape of described the second hard alloy blocks and described the second mating groove is suitable.
4. embedded composite sliding bearing according to claim 3, it is characterized in that, the cross section of described the first mating groove is wedge-type shape, the cross section of described the first hard alloy blocks is the wedge-type shape suitable with the cross section of described the first mating groove, the cross section of described the second mating groove is wedge-type shape, and the cross section of described the second hard alloy blocks is the wedge-type shape suitable with the cross section of described the second mating groove.
5. embedded composite sliding bearing according to claim 3, is characterized in that, the cross section of described the first mating groove is isosceles trapezoid, and the cross section of described the second mating groove is isosceles trapezoid.
6. embedded composite sliding bearing according to claim 2, is characterized in that, described the first mating groove is circumferential spaced apart multiple along the internal face of described axle sleeve, and every two adjacent identical distances in described mating groove interval.
7. embedded composite sliding bearing according to claim 1, is characterized in that, described axle sleeve is drum, and described bearing shell is the suitable drum of internal surface of outer surface and described axle sleeve.
8. according to the embedded composite sliding bearing described in any one in claim 1-7, it is characterized in that, described the first mating groove and described the first hard alloy blocks be by Spielpassung or transition fit, described the second mating groove with described the second hard alloy blocks by Spielpassung or excessively coordinate.
9. according to the embedded composite sliding bearing described in any one in claim 1-7, it is characterized in that, described the first hard alloy blocks is welded on described axle sleeve by weld-aiding cream, and described the second hard alloy blocks is welded on described bearing shell by weld-aiding cream.
10. embedded composite sliding bearing according to claim 9, it is characterized in that, the end of at least one in described axle sleeve and described the first hard alloy blocks is provided with the first stop member for the first hard alloy blocks described in backstop, and the end end face of at least one in described bearing shell and described the second hard alloy blocks is provided with the second stop member for the second hard alloy blocks described in backstop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320641857.2U CN203585093U (en) | 2013-10-17 | 2013-10-17 | Embedded type composite sliding bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320641857.2U CN203585093U (en) | 2013-10-17 | 2013-10-17 | Embedded type composite sliding bearing |
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| Publication Number | Publication Date |
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| CN203585093U true CN203585093U (en) | 2014-05-07 |
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| CN201320641857.2U Expired - Fee Related CN203585093U (en) | 2013-10-17 | 2013-10-17 | Embedded type composite sliding bearing |
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| CN (1) | CN203585093U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107128652A (en) * | 2017-06-22 | 2017-09-05 | 高鹏 | A kind of coupling spindle and the conveying worm including the coupling spindle |
-
2013
- 2013-10-17 CN CN201320641857.2U patent/CN203585093U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107128652A (en) * | 2017-06-22 | 2017-09-05 | 高鹏 | A kind of coupling spindle and the conveying worm including the coupling spindle |
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