CN110950274B - Lead screw back taper connection structure - Google Patents
Lead screw back taper connection structure Download PDFInfo
- Publication number
- CN110950274B CN110950274B CN201911306229.7A CN201911306229A CN110950274B CN 110950274 B CN110950274 B CN 110950274B CN 201911306229 A CN201911306229 A CN 201911306229A CN 110950274 B CN110950274 B CN 110950274B
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- lead screw
- lifting platform
- inverted
- truncated cone
- circular truncated
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
- B66F7/12—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by mechanical jacks
- B66F7/14—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by mechanical jacks screw operated
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Types And Forms Of Lifts (AREA)
Abstract
The invention is suitable for the technical field of multi-axis synchronous lifting, and provides a lead screw inverted cone connecting structure, which comprises a lifting platform, an inverted cone platform and a lead screw, wherein the upper part of the lifting platform is provided with a first round hole, and the lead screw penetrates through the first round hole and is connected with the inverted cone platform; the lower part of the lifting platform is provided with a first circular truncated cone cavity, the inner diameter of the first circular truncated cone cavity is in arrangement with a small upper part and a large lower part, the inverted circular truncated cone is accommodated in the first circular truncated cone cavity, and a certain gap is formed between the outer peripheral surface of the inverted circular truncated cone and the inner peripheral surface of the first circular truncated cone cavity. Because a certain gap is formed between the outer peripheral surface of the inverted cone frustum and the inner peripheral surface of the first cone frustum cavity of the lifting platform, and the verticality of each lead screw has a certain adjustment amount, the lead screws can be easily ensured to synchronously drive the lifting platform to vertically ascend.
Description
Technical Field
The invention belongs to the technical field of multi-axis synchronous lifting, and particularly relates to a lead screw inverted cone connecting structure.
Background
The lifting platform has wide application in industrial production, and the lifting platform in the prior art mainly has the following two structures: one mode is that a flexible connection design is adopted, a plurality of hanging chains are used for hanging the platform, and then the platform is integrally hoisted; in another mode, a rigid connection design is partially adopted, the platform is supported on a folding arm consisting of a plurality of parallelograms, and the folding arm is driven by electric power or hydraulic pressure to lift the platform. Among the above lift platform, owing to adopted many chains to hang or a plurality of support arm to support, its lift platform has following defect: poor flatness of the table surface, unstable pressure, small load capacity and the like.
At present, a multi-shaft synchronous lifting platform adopting a spiral lifter is widely applied to various industries, and the multi-shaft synchronous lifting platform adopting the spiral lifter has good stability and large load capacity. The lifting platform is hung at the lower end of a screw rod of a spiral lifter, one mode is that the screw rod is spirally connected with the lifting platform, the screw rods of a plurality of spiral lifters are driven to synchronously rotate through a motor or a hydraulic mechanism, so that the platform is driven to ascend or descend, however, in part application places, the requirement on the positioning precision of the lifting platform is higher, and therefore, a plurality of screw rods connected with the lifting platform are required to have higher verticality, so that the situation that the plurality of screw rods cannot be forcefully forced in the lifting process of the lifting platform can be ensured; the other mode is that lifting platform and many lead screws rigid connection, through motor or hydraulic pressure mechanism drive and lead screw complex nut synchronous revolution, and then drive the platform and rise or descend, consequently need guarantee the straightness that hangs down of many lead screws, its mechanical adjustment degree of difficulty is very big, and the operation degree of difficulty is higher, and the efficiency of going up and down is lower, even less mechanical deformation all probably leads to lifting platform to transship, has great potential safety hazard.
In order to solve the problems, the invention provides a lead screw inverted cone connecting structure which can be used for a high-precision multi-shaft synchronous lifting platform.
Disclosure of Invention
The invention aims to provide a lead screw inverted cone connecting structure, and aims to solve the technical problem that a plurality of lead screws in a multi-shaft synchronous lifting platform in the prior art are mutually weak.
The invention is realized in such a way that a lead screw inverted cone connecting structure comprises a lifting platform, an inverted cone platform and a lead screw, wherein the upper part of the lifting platform is provided with a first round hole, and the lead screw passes through the first round hole and then is connected with the inverted cone platform; the lower part of the lifting platform is provided with a first circular truncated cone cavity, the inner diameter of the first circular truncated cone cavity is in arrangement with a small upper part and a large lower part, the inverted circular truncated cone is accommodated in the first circular truncated cone cavity, and a certain gap is formed between the outer peripheral surface of the inverted circular truncated cone and the inner peripheral surface of the first circular truncated cone cavity. Because a certain gap is formed between the outer peripheral surface of the inverted cone frustum and the inner peripheral surface of the first cone frustum cavity of the lifting platform, and the verticality of each lead screw has a certain adjustment amount, the lead screws can be easily ensured to synchronously drive the lifting platform to vertically ascend.
The invention also provides another lead screw inverted cone connecting structure which comprises a lifting platform, a connecting block, an inverted cone platform and a lead screw, wherein the upper part of the lifting platform is provided with a first round hole; the lower part of the connecting block is provided with a second circular truncated cone cavity, the inner diameter of the second circular truncated cone cavity is in an arrangement of small top and large bottom, the inverted circular truncated cone is accommodated in the second circular truncated cone cavity, and a certain gap is formed between the outer peripheral surface of the inverted circular truncated cone and the inner peripheral surface of the second circular truncated cone cavity. The connecting block is additionally arranged, so that the connecting block can be conveniently replaced, and the sizes of the cavities of the second round tables in different connecting blocks can be set to be different, so that the requirements of the inverted round tables with different sizes can be conveniently met.
Furthermore, the upper part of the inverted cone round table is provided with a mounting hole, and the end part of the lead screw is mounted in the mounting hole.
Furthermore, a fixing nut is sleeved on the lead screw above the lifting platform.
Further, the fixing nut is fixed on the screw rod in a welding mode.
Furthermore, the lower part of the inverted cone frustum is also provided with a force application part.
Further, the force application component is a force application nut. Therefore, when the screw rod is connected with the inverted cone round table, the fixing nut is clamped through one wrench, the force application nut below is screwed through the other wrench, an up-down screwing mode is formed, the screw rod can be screwed into the mounting hole of the inverted cone round table, and therefore the screw rod and the inverted cone round table cannot be loosened.
Furthermore, the connecting block is step-shaped in appearance, and a step hole is formed in the lower portion of the lifting platform and used for containing the connecting block.
Furthermore, the upper top surface of the inverted cone round table is also provided with a guide sleeve, and the mounting hole penetrates through the guide sleeve.
Further, the guide sleeve only extends into the first round hole, or the guide sleeve extends into the first round hole and the second round hole simultaneously. Because the guide sleeve is arranged on the upper top surface of the inverted cone, a better positioning effect can be realized when the inverted cone is installed.
Compared with the prior art, the invention has the technical effects that:
(1) because a certain gap is formed between the outer peripheral surface of the inverted cone frustum and the inner peripheral surface of the first frustum cavity of the lifting platform, and the verticality of each lead screw has a certain adjustment amount, the lead screws can be easily ensured to synchronously drive the lifting platform to vertically lift;
(2) the connecting block is additionally arranged, so that the connecting block can be conveniently replaced, and the sizes of the cavities of the second round tables in different connecting blocks can be set to be different, so that the requirements of the inverted round tables with different sizes can be conveniently met;
(3) in the lead screw inverted cone connecting structure, the fixing nut is clamped by one wrench, the lower force application nut is screwed by the other wrench to form a vertically opposite screwing mode, and the lead screw can be screwed into the mounting hole of the inverted cone, so that the lead screw and the inverted cone are prevented from loosening. Therefore, the installation of the screw rod and the inverted cone can be conveniently realized;
(4) the inverted cone connecting structure of the lead screw can be used for a high-precision multi-shaft synchronous lifting platform, the lead screw and the lifting platform are connected with each other in a flexible and rigid combined mode, and the problem that a plurality of lead screws are not strong is solved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention or in the description of the prior art will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is an overall schematic view of a multi-axis synchronous lifting platform provided in an embodiment of the present invention;
FIG. 2 is a schematic overall structure diagram of a reverse taper connecting structure of a lead screw according to a first embodiment;
fig. 3 is a schematic structural view of an inverted cone frustum in the first embodiment and the second embodiment;
fig. 4 is an overall structural schematic view of a reverse taper connecting structure of a lead screw in the second embodiment;
fig. 5 is a schematic structural view of an inverted cone table according to a third embodiment.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it should be noted that when an element is referred to as being "fixed" or "disposed" to another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments.
As shown in fig. 1, which is an overall schematic view of a multi-axis synchronous lifting platform, a lifting platform 1 is suspended at a lower end of a screw rod 2 of a screw elevator (not shown), and is driven by a motor or a hydraulic mechanism, so as to drive the lifting platform 1 to ascend or descend.
The screw 2 is connected with the lifting platform 1 through a screw inverted cone connecting structure 3.
The first embodiment is as follows:
fig. 2 is a schematic view of an overall structure of a lead screw reverse taper connecting structure 3 in the first embodiment, and fig. 3 is a schematic view of a reverse taper truncated cone 4.
The upper portion of lift platform 1 has first round hole 7, and the internal diameter of first round hole 7 is greater than the external diameter of lead screw 2, and lead screw 2 can pass first round hole 7.
The lower part of the lifting platform 1 is provided with a first circular truncated cone cavity 9, the inner diameter of the first circular truncated cone cavity 9 is in an arrangement of small top and large bottom, wherein the inner diameter of the uppermost part of the first circular truncated cone cavity 9 is larger than the inner diameter of the first circular hole 7, so that a first abutting surface 10 is formed on the uppermost part of the first circular truncated cone cavity 9.
The first circular truncated cone cavity 9 is internally provided with the inverted circular truncated cone 4, the upper top surface of the inverted circular truncated cone 4 can be abutted against the first abutting surface 10 of the first circular truncated cone cavity 9, and therefore the lifting platform 1 can be lifted or lowered through the inverted circular truncated cone 4 and the lead screw 2.
A certain gap d is formed between the outer peripheral surface of the inverted cone frustum 4 and the inner peripheral surface of the first cone frustum cavity 9, so that the inverted cone frustum 4 is ensured to have a certain movable redundant space.
The upper part of the inverted cone platform 4 is provided with a mounting hole 5, the end part of the lead screw 2 can be mounted in the mounting hole 5, preferably, the mounting hole 5 is a threaded hole, and the end part of the lead screw 2 can be screwed into the threaded hole.
Above the lifting platform 1, a fixing nut 8 is further sleeved on the screw rod 2, and preferably, the fixing nut 8 is fixed on the screw rod 2 in a welding manner.
Furthermore, the lower part of the inverted cone frustum 4 is provided with a force application part 6, preferably, the force application part 6 is a force application nut, when the screw rod 2 and the inverted cone frustum 4 are connected, the fixing nut 8 is clamped through a wrench, the force application nut below is screwed through another wrench, a vertical opposite screwing mode is formed, the screw rod 2 can be screwed into the mounting hole 5 of the inverted cone frustum 4, and therefore the screw rod 2 and the inverted cone frustum 4 are prevented from loosening.
When the lifting platform 1 needs to ascend, the spiral lifter is driven by a motor or a hydraulic mechanism, so that the plurality of lead screws drive the lifting platform 1 to ascend vertically, and a certain gap d is formed between the outer peripheral surface of the inverted cone frustum 4 and the inner peripheral surface of the first cone frustum cavity 9 of the lifting platform 1, and the verticality of each lead screw has a certain adjustment amount, so that the lead screws can be easily ensured to synchronously drive the lifting platform 1 to ascend vertically.
When the lifting platform 1 is required to descend, the lifting platform 1 is often required to be installed in other parts, in the embodiment, the lifting platform 1 is required to be installed in a supporting frame, therefore, when the lifting platform 1 is installed in the supporting frame, the lifting platform 1 is accurately positioned under the self gravity and the guide of the first circular truncated cone cavity 9, and after the lifting platform 1 is installed in place, the inverted circular truncated cone 4 is moved away from the first circular truncated cone cavity 9, so that the lead screw 2 is not additionally stressed, and the service life of the spiral elevator is prolonged.
In the embodiment, the screw rods are connected with the lifting platform in a flexible and rigid combination mode, so that the problem that the screw rods are not strong mutually is solved.
Example two:
fig. 4 is a schematic view of an overall structure of a lead screw reverse taper connecting structure 3 in the second embodiment, and fig. 3 is a schematic view of a reverse taper truncated cone 4.
The upper portion of lift platform 1 has first round hole 7, and the internal diameter of first round hole 7 is greater than the external diameter of lead screw 2, and lead screw 2 can pass first round hole 7.
The lower part of the lifting platform 1 is provided with a step hole 11 for accommodating a connecting block 12 with a step shape, and after the connecting block 12 is placed in the step hole 11, the lifting platform 1 and the connecting block 12 are connected together by a fastener such as a bolt (not shown).
The upper portion of connecting block 12 has second round hole 13, and the internal diameter of second round hole 13 is greater than the external diameter of lead screw 2, and lead screw 2 can pass second round hole 13. Preferably, the first circular hole 7 and the second circular hole 13 are the same size.
The lower portion of the connecting block 12 has a second circular truncated cone cavity 9 'with an inner diameter of the second circular truncated cone cavity 9' in an arrangement that is smaller at the top, wherein the inner diameter of the uppermost portion of the second circular truncated cone cavity 9 'is larger than the inner diameter of the second circular hole 13 to form a second abutment surface 14 at the uppermost portion of the second circular truncated cone cavity 9'.
The inverted cone-shaped truncated cone 4 is accommodated in the second truncated cone cavity 9', the upper top surface of the inverted cone-shaped truncated cone 4 can be abutted against the second abutting surface 14 of the second truncated cone cavity 9', and therefore the lifting platform 1 can be lifted or lowered through the inverted cone-shaped truncated cone 4, the lead screw 2 and the connecting block 12.
A certain gap is formed between the outer peripheral surface of the inverted cone frustum 4 and the inner peripheral surface of the second cone frustum cavity 9' to ensure that the inverted cone frustum 4 has a certain movable redundant space.
The upper part of the inverted cone platform 4 is provided with a mounting hole 5, the end part of the lead screw 2 can be mounted in the mounting hole 5, preferably, the mounting hole 5 is a threaded hole, and the end part of the lead screw 2 can be screwed into the threaded hole.
Above the lifting platform 1, a fixing nut 8 is further sleeved on the screw rod 2, and preferably, the fixing nut 8 is fixed on the screw rod 2 in a welding manner.
Furthermore, the lower part of the inverted cone frustum 4 is provided with a force application part 6, preferably, the force application part 6 is a force application nut, when the screw rod 2 and the inverted cone frustum 4 are connected, the fixing nut 8 is clamped through a wrench, the force application nut below is screwed through another wrench, a vertical opposite screwing mode is formed, the screw rod 2 can be screwed into the mounting hole 5 of the inverted cone frustum 4, and therefore the screw rod 2 and the inverted cone frustum 4 are prevented from loosening.
When the lifting platform 1 needs to ascend, the spiral lifter is driven by a motor or a hydraulic mechanism, so that the plurality of lead screws drive the lifting platform 1 to ascend vertically, and because a certain gap is formed between the outer peripheral surface of the inverted cone frustum 4 and the inner peripheral surface of the second cone frustum cavity 9' of the connecting block 12, the verticality of each lead screw has a certain adjustment amount, the lead screws can be ensured to synchronously drive the lifting platform 1 to ascend vertically easily.
When the lifting platform 1 is required to descend, the lifting platform 1 is often required to be installed in other components, in the embodiment, the lifting platform 1 is required to be installed in a supporting frame, therefore, when the lifting platform 1 is installed in the supporting frame, the lifting platform 1 is accurately positioned under the self gravity and the guide of the second circular truncated cone cavity 9', and after the lifting platform 1 is installed in place, the inverted circular truncated cone 4 is moved away from the second circular truncated cone cavity 9', so that the lead screw 2 is not additionally stressed, and the service life of the spiral lifter is prolonged.
Compared with the first embodiment, the second embodiment is additionally provided with the connecting block 12, so that the connecting block 12 can be conveniently replaced, and the size of the second circular truncated cone cavity 9' in different connecting blocks 12 can be set to be different, so that the requirements of the inverted circular truncated cones 4 with different sizes can be conveniently met. In the first embodiment, the first circular truncated cone cavity 9 is directly arranged on the lifting platform 1, so that after the lifting platform 1 is determined, the inverted circular truncated cone 4 matched with the lifting platform 1 is determined, and different inverted circular truncated cones 4 cannot be configured for different requirements of the same lifting platform 1.
Example three:
fig. 5 is another schematic structural diagram of the reverse taper frustum 4.
The inverted cone 4 has the same structure as that of the first embodiment and the second embodiment, and the upper top surface of the inverted cone 4 is also provided with a guide sleeve 15, the mounting hole 5 penetrates through the guide sleeve 15, when the inverted cone 4 is applied to the first embodiment, the guide sleeve 15 can extend into the first round hole 7, and when the inverted cone 4 is applied to the second embodiment, the guide sleeve 15 can extend into the first round hole 7 and the second round hole 13; that is, the guide sleeve extends only into the first circular hole 7, or the guide sleeve extends into both the first circular hole 7 and the second circular hole 13.
Because the guide sleeve 15 is arranged on the upper top surface of the inverted cone 4, a better positioning effect can be realized when the inverted cone 4 is installed.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. A lead screw inverted cone connecting structure is characterized by comprising a lifting platform, an inverted cone round table and a lead screw, wherein a first round hole is formed in the upper part of the lifting platform, and the lead screw penetrates through the first round hole and then is connected with the inverted cone round table; the lower part of the lifting platform is provided with a first circular truncated cone cavity, the inner diameter of the first circular truncated cone cavity is in large-end-up arrangement, the inverted circular truncated cone is accommodated in the first circular truncated cone cavity, a certain gap is formed between the outer peripheral surface of the inverted circular truncated cone and the inner peripheral surface of the first circular truncated cone cavity, the upper part of the inverted circular truncated cone is provided with a mounting hole, and the end part of a lead screw is mounted in the mounting hole.
2. A lead screw inverted cone connecting structure is characterized by comprising a lifting platform, a connecting block, an inverted cone round table and a lead screw, wherein a first round hole is formed in the upper portion of the lifting platform, the lifting platform and the connecting block are connected together through a fastener, a second round hole is formed in the upper portion of the connecting block, and the lead screw penetrates through the first round hole and the second round hole and then is connected with the inverted cone round table; the lower part of connecting block has the second round platform cavity, the internal diameter of second round platform cavity is big end down's arrangement, the back taper round platform holds in the second round platform cavity, has certain clearance between the outer peripheral face of back taper round platform and the inner peripheral face of second round platform cavity, the upper portion of back taper round platform has the mounting hole, and the tip of lead screw is installed in the mounting hole.
3. The lead screw inverted cone connecting structure as defined in claim 1 or 2, wherein a fixing nut is further sleeved on the lead screw above the lifting platform.
4. The reverse taper connecting structure of the lead screw as claimed in claim 3, wherein the fixing nut is fixed on the lead screw by welding.
5. The back taper connecting structure of a lead screw according to claim 1 or 2, wherein the back taper platform is further provided with a force application component at the lower part.
6. The reverse taper connection for a lead screw as claimed in claim 5, wherein the force applying member is a force applying nut.
7. The lead screw inverted cone connecting structure as set forth in claim 2, wherein the connecting block is stepped in shape, and the lower portion of the lifting platform has a stepped hole for receiving the connecting block.
8. The back taper connecting structure of a lead screw according to claim 1 or 2, wherein the top surface of the back taper truncated cone further has a guide sleeve, and the mounting hole passes through the guide sleeve.
9. The reverse taper connecting structure of the lead screw as claimed in claim 8, wherein the guide sleeve extends into only the first circular hole, or the guide sleeve extends into both the first circular hole and the second circular hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911306229.7A CN110950274B (en) | 2019-12-17 | 2019-12-17 | Lead screw back taper connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911306229.7A CN110950274B (en) | 2019-12-17 | 2019-12-17 | Lead screw back taper connection structure |
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| CN110950274A CN110950274A (en) | 2020-04-03 |
| CN110950274B true CN110950274B (en) | 2021-07-23 |
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| JPH07157291A (en) * | 1993-12-03 | 1995-06-20 | Shinko Electric Co Ltd | Positioning device for lift device |
| JP2003314658A (en) * | 2002-04-24 | 2003-11-06 | Toyoda Mach Works Ltd | Ball screw device and electric power steering device |
| US7874403B2 (en) * | 2005-03-08 | 2011-01-25 | Larry Rayner Russell | Lubrication system for pin connections |
| CN202048282U (en) * | 2011-03-30 | 2011-11-23 | 中国石油化工股份有限公司 | Flange theft-proof structure and theft-proof flange with flange theft-proof structure |
| CN103991820B (en) * | 2014-06-04 | 2016-09-07 | 吉林大学 | The level(l)ing device of heavy-duty screw synchronous lifting platform |
| CN104354232B (en) * | 2014-11-07 | 2016-04-20 | 山东大学 | A kind of method for improving for the feeding of buhl saw famine material and device |
| CN105178478B (en) * | 2015-05-25 | 2018-01-26 | 深圳市三鑫科技发展有限公司 | Cable Structure overlapping joint adjusting means |
| CN204625081U (en) * | 2015-05-25 | 2015-09-09 | 浙江海洋学院东海科学技术学院 | A kind of liftable experiment fermentation tank |
| CN205137036U (en) * | 2015-10-20 | 2016-04-06 | 安徽正飞机电设备有限公司 | Novel motor bearing room oil plug |
| CN205622438U (en) * | 2016-04-11 | 2016-10-05 | 株洲南方机电制造有限公司 | Medium -sized motor stator rotor assembling assembly base |
| CN206509717U (en) * | 2016-12-29 | 2017-09-22 | 沪东重机有限公司 | A kind of general stretcher |
| CN207278457U (en) * | 2017-09-26 | 2018-04-27 | 邵卫功 | A kind of vacuum pump piston rod of accurate positioning |
| CN207740411U (en) * | 2017-12-27 | 2018-08-17 | 毕节市工业学校 | A kind of leading screw axial clearance adjusting mechanism |
| CN208020127U (en) * | 2018-03-30 | 2018-10-30 | 马斯特模具（昆山）有限公司 | A kind of nut assembled fixture |
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