CN201437259U - Work-platform elevation system protection device - Google Patents
Work-platform elevation system protection device Download PDFInfo
- Publication number
- CN201437259U CN201437259U CN2009201093879U CN200920109387U CN201437259U CN 201437259 U CN201437259 U CN 201437259U CN 2009201093879 U CN2009201093879 U CN 2009201093879U CN 200920109387 U CN200920109387 U CN 200920109387U CN 201437259 U CN201437259 U CN 201437259U
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- nut
- workbench
- screw mandrel
- protection
- lifting system
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Abstract
The utility model relates to a work-platform elevation system protection device, which comprises a neck which is fixed on a work platform and prevents the rotation of a transmission piece and a protection bolt which can be automatically broken when in overload, wherein the protection bolt fixes the transmission piece onto the work platform. The transmissions piece can be of a nut which is connected with a lead screw in a threading way and also can be of a guide screw which is connected with the nut in a threading way. A fit clearance is further arranged between the neck and the nut, between the nut and the work platform and between the protection bolt and an installation hole, so the concentricity of the guide screw and the nut can be ensured. Through the protection bolt which can be automatically broken when in overload, the protection bolt fixes the guide screw or the nut onto the work platform, so the guide screw, the nut, the transmission reducer and other parts can be protected against the accident damage when in overload, and the production stop can be prevented; at the same time by ensuring the concentricity of the guide screw and the nut, the abrasion of the nut and the guide screw can be reduced, and the service life can be prolonged.
Description
Technical field
The utility model relates to a kind of worktable lifting system that natural stone is processed, particularly a kind of worktable lifting system protection device.
Background technology
In natural stone cutting processing mechanical field, the worktable lifting system is used for mobile building stones and cuts feeding, common version is that power drives screw mandrel and rotates and drive the movable workbench that is connected with nut, or power drive nut rotates and drives the movable workbench that is connected with screw mandrel.
In the worktable lifting system of traditional structure, between workbench and the nut or workbench be mandatory fixedlying connected with syndeton between the screw mandrel.Because often pile up the workbench bottom rubble or other foreign material that drop down are arranged, when rubble or other foreign material withstand workbench, frequent generation rubble blocks workbench and causes drive disk assemblies overload such as screw mandrel or nut, and then causes nut, screw mandrel and transmission speed reducer to damage, and causes damp production.In addition,, need a plurality of screw mandrels participate in work, but the concentricity of a plurality of screw mandrels and nut is difficult to guarantee in the existing structure, has the defective of eccentric gearing clamping stagnation, causes nut and screw mandrel to wear and tear greatly with nut because the Working table structure size is big.
The utility model content
The purpose of this utility model provides a kind of worktable lifting system protection device, has the advantage that can effectively protect parts such as screw mandrel, nut and transmission speed reducer not to be damaged when overload, can avoid the eccentric gearing clamping stagnation defective of existing structure further.
To achieve these goals; the utility model provides a kind of worktable lifting system protection device; comprise the protection bolt that is fixed on automatic breaking when preventing draw-in groove that driving member rotates and overload on the workbench, described protection bolt is fixed on described driving member on the described workbench.
Described driving member can be the nut that is spirally connected with screw mandrel, offers the installing hole of protection bolt on described workbench and the nut.
Described driving member also can be the screw mandrel that is spirally connected with nut, offers the installing hole of protection bolt on described workbench and the screw mandrel.
Further, has fit clearance between described protection bolt and the installing hole more than or equal to 0.1 millimeter.
On the technique scheme basis, described protection bolt is 1～4.All the protection bolts pull apart the stress sum be driving member can bear axial force 50%～80%.
On the technique scheme basis, has fit clearance between described draw-in groove and the driving member more than or equal to 0.1 millimeter.Has fit clearance between described driving member and protection bolt and the workbench more than or equal to 0.1 millimeter.
The utility model provides a kind of worktable lifting system protection device; the protection bolt of automatic breaking when overloading by being provided with; the protection bolt is fixed on screw mandrel or nut on the workbench; therefore when overload, can effectively protect the damage that do not meet accident of parts such as screw mandrel, nut and transmission speed reducer, avoid damp production.Further, the utility model can guarantee the concentricity of screw mandrel and nut by the structure of automatic aligning is set, and has avoided the eccentric gearing clamping stagnation defective of existing structure, has reduced the wearing and tearing of nut and screw mandrel, has prolonged service life.
Description of drawings
Fig. 1 is the structural representation of the utility model worktable lifting system protection device first embodiment;
Fig. 2 is the upward view of Fig. 1 structure;
Fig. 3 is the structural representation of the utility model worktable lifting system protection device second embodiment;
Fig. 4 is the upward view of Fig. 3 structure.
Description of reference numerals:
The 1-draw-in groove; 2-protects bolt; The 3-workbench;
The 4-nut; The 5-screw mandrel.
The specific embodiment
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Fig. 1 is the structural representation of the utility model worktable lifting system protection device first embodiment, and Fig. 2 is the upward view of Fig. 1 structure.As depicted in figs. 1 and 2, the agent structure of present embodiment worktable lifting system protection device comprises draw-in groove 1 and protection bolt 2, the agent structure of worktable lifting system comprises workbench 3, nut 4 and screw mandrel 5, be that a kind of nut is fixed and the situation of screw mandrel rotation, nut 4 as driving member is spirally connected with screw mandrel 5, and power drive screw mandrel 5 rotates nut 4 drive workbench 3 are moved; Draw-in groove 1 is fixed on the workbench 3, is used for preventing that nut 4 from rotating, and protection bolt 2 is fixed on nut 4 on the workbench 3, is used for making workbench 3 stop motions by fracture mode when screw mandrel 5 stressed overstepping the extreme limit.Particularly, offer the installing hole of protection bolt 2 on workbench 3 and the nut 4, protection bolt 2 is used for nut 4 is fixed on workbench 3.The insurance connecting bolt of automatic breaking when present embodiment protection bolt 2 is a kind of the overload; be used for during operate as normal nut 4 is fixed on workbench 3; make nut 4 and workbench 3 become an overall structure; when nut 4 or screw mandrel 5 stressed overstepping the extreme limit; 2 fractures of protection bolt make nut 4 skid off draw-in groove 1, owing to the be connected disconnection of nut 4 with workbench 3; load on nut 4 or the screw mandrel 5 is kept to minimum at once, therefore the infringement of having avoided nut 4 or screw mandrel 5 to cause because of stressed overload.In the practical application, protect the quantity of bolt 2 and pull apart stress the stressed size in the time of can using according to reality to determine.For example, can adopt 1～4 protection bolt that nut 4 is connected with workbench 3, all protect the axial force that the stress sum can bear less than single driving member of pulling apart of bolts 2.Preferably, present embodiment be provided with all the protection bolts 2 pull apart the stress sum be single driving member can bear axial force 50%～80%.In addition, be used for preventing that draw-in groove 1 that nut 4 rotates from can adopt is fixed in welded or bolted way on the workbench 3, or adopt other can transmit the mechanical connecting structure of torsion.Compare with mandatory fixedly connected existing structure; the protection bolt of automatic breaking when present embodiment worktable lifting system protection device overloads by being provided with; can effectively protect parts such as nut, screw mandrel and transmission speed reducer not produce accidental damage during overload, avoid damp production.
On aforementioned techniques scheme basis; present embodiment is between draw-in groove 1 and nut 4; between nut 4 and the workbench 3; between the installing hole of protection bolt 2 and workbench 3; all be reserved with a fit clearance of setting between the installing hole of protection bolt 2 and nut 4; the processing of this fit clearance adequate remedy screw mandrel and nut and the concentricity of installation; but make nut 4 and screw mandrel 5 form the driving member of automatic aligning; guarantee that nut 4 has certain space that moves freely; by adjusting the concentricity that nut 4 can guarantee screw mandrel and nut; realize the concentric transmission of several feed screw nut pairs, therefore can effectively prevent the defective of eccentric gearing clamping stagnation.In actual the use; can be arranged to more than or equal to 0.1 millimeter in the fit clearance of horizontal direction shown in Figure 1 between draw-in groove 1 and the nut 4; can be arranged to more than or equal to 0.1 millimeter in the fit clearance of horizontal direction shown in Figure 1 between nut 4 and the workbench 3, can be arranged to more than or equal to 0.1 millimeter in the fit clearance of horizontal direction shown in Figure 1 between protection bolt 2 and the installing hole.Compare with the existing structure that has eccentric gearing clamping stagnation defective, but present embodiment has reduced the wearing and tearing of nut and screw mandrel by the structure that adopts automatic aligning, has prolonged service life.
Fig. 3 is the structural representation of the utility model worktable lifting system protection device second embodiment, and Fig. 4 is the upward view of Fig. 3 structure.Present embodiment is a kind of structure expansion of aforementioned first embodiment, is applicable to that screw mandrel is fixed and situation that nut rotates.As shown in Figure 3 and Figure 4, the agent structure of present embodiment worktable lifting system protection device comprises draw-in groove 1 and protection bolt 2, the agent structure of worktable lifting system comprises workbench 3, nut 4 and screw mandrel 5, screw mandrel 5 as driving member is spirally connected with nut 4, and power drive nut 4 rotates screw mandrel 5 drive workbench 3 are moved; Draw-in groove 1 is fixed on the workbench 3, is used for preventing that screw mandrel 5 from rotating, and protection bolt 2 is fixed on screw mandrel 5 on the workbench 3, is used for making workbench 3 stop motions by fracture mode when nut 4 stressed overstepping the extreme limit.Particularly, offer the installing hole of protection bolt 2 on workbench 3 and the screw mandrel 5, protection bolt 2 is used for screw mandrel 5 is fixed on workbench 3.The insurance connecting bolt of automatic breaking when present embodiment protection bolt 2 is a kind of the overload; during operate as normal screw mandrel 5 is fixed on the workbench 3; make screw mandrel 5 and workbench 3 become an overall structure; when nut 4 or screw mandrel 5 stressed overstepping the extreme limit; 2 fractures of protection bolt; make the disconnection that is connected of screw mandrel 5 and workbench 3, the load of nut 4 or screw mandrel 5 is kept to minimum at once, therefore the infringement of having avoided nut 4 or screw mandrel 5 to cause because of stressed overload.The quantity of present embodiment draw-in groove and workbench syndeton, protection bolt 2 and pull apart stress and parameter such as fit clearance identical with aforementioned first embodiment, repeat no more.Equally, the protection bolt of automatic breaking can effectively protect parts such as nut, screw mandrel and transmission speed reducer not produce accidental damage when present embodiment overloaded by being provided with during overload, had avoided damp production.
Further; present embodiment is between draw-in groove 1 and the screw mandrel 5, between screw mandrel 5 and the workbench 3, all be reserved with a gap of setting between protection bolt 2 and the installing hole; but make nut 4 and screw mandrel 5 form the driving member of automatic aligning; guarantee that screw mandrel 5 has certain space that moves freely; by adjusting the concentricity that screw mandrel 5 can guarantee screw mandrel and nut; realize the concentric transmission of several feed screw nut pairs, therefore can effectively prevent the defective of eccentric gearing clamping stagnation.In actual the use; can be arranged to more than or equal to 0.1 millimeter in the fit clearance of horizontal direction shown in Figure 3 between draw-in groove 1 and the screw mandrel 5; can be arranged to more than or equal to 0.1 millimeter in the fit clearance of horizontal direction shown in Figure 3 between screw mandrel 5 and the workbench 3, can be arranged to more than or equal to 0.1 millimeter in the fit clearance of horizontal direction shown in Figure 3 between protection bolt 2 and the installing hole.Compare with the existing structure that has eccentric gearing clamping stagnation defective, the present embodiment structure has reduced the wearing and tearing of nut and screw mandrel, has prolonged service life.
It should be noted that at last: above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not break away from the spirit and scope of technical solutions of the utility model.
Claims (8)
1. a worktable lifting system protection device is characterized in that, comprises the protection bolt that is fixed on automatic breaking when preventing draw-in groove that driving member rotates and overload on the workbench, and described protection bolt is fixed on described driving member on the described workbench.
2. worktable lifting system protection device according to claim 1 is characterized in that, described driving member is the nut that is spirally connected with screw mandrel, offers the installing hole of protection bolt on described workbench and the nut.
3. worktable lifting system protection device according to claim 1 is characterized in that, described driving member is the screw mandrel that is spirally connected with nut, offers the installing hole of protection bolt on described workbench and the screw mandrel.
4. according to claim 2 or 3 described worktable lifting system protection devices, it is characterized in that having fit clearance between described protection bolt and the installing hole more than or equal to 0.1 millimeter.
5. according to the described worktable lifting system protection device of arbitrary claim in the claim 1～3, it is characterized in that described protection bolt is 1～4.
6. worktable lifting system protection device according to claim 5 is characterized in that, all the protection bolts pull apart the stress sum be driving member can bear axial force 50%～80%.
7. according to the described worktable lifting system protection device of arbitrary claim in the claim 1～3, it is characterized in that having fit clearance between described draw-in groove and the driving member more than or equal to 0.1 millimeter.
8. according to the described worktable lifting system protection device of arbitrary claim in the claim 1～3, it is characterized in that having fit clearance between described driving member and protection bolt and the workbench more than or equal to 0.1 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201093879U CN201437259U (en) | 2009-06-23 | 2009-06-23 | Work-platform elevation system protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201093879U CN201437259U (en) | 2009-06-23 | 2009-06-23 | Work-platform elevation system protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201437259U true CN201437259U (en) | 2010-04-14 |
Family
ID=42399240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201093879U Expired - Fee Related CN201437259U (en) | 2009-06-23 | 2009-06-23 | Work-platform elevation system protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201437259U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103179610A (en) * | 2011-12-20 | 2013-06-26 | 中兴通讯股份有限公司 | Method and system for maintaining multi-mode base station |
| CN105417435A (en) * | 2015-12-17 | 2016-03-23 | 中国电子科技集团公司第二研究所 | Light-abrasion loading lead screw lifting mechanism |
| CN107053924A (en) * | 2017-06-05 | 2017-08-18 | 吴善旺 | A kind of screw rod transmission structure of engraving machine |
| CN107915170A (en) * | 2017-11-14 | 2018-04-17 | 中车长春轨道客车股份有限公司 | Lift the de- loading system of screw auxiliary of load-bearing for a long time for car lifting J-Horner |
-
2009
- 2009-06-23 CN CN2009201093879U patent/CN201437259U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103179610A (en) * | 2011-12-20 | 2013-06-26 | 中兴通讯股份有限公司 | Method and system for maintaining multi-mode base station |
| CN105417435A (en) * | 2015-12-17 | 2016-03-23 | 中国电子科技集团公司第二研究所 | Light-abrasion loading lead screw lifting mechanism |
| CN107053924A (en) * | 2017-06-05 | 2017-08-18 | 吴善旺 | A kind of screw rod transmission structure of engraving machine |
| CN107053924B (en) * | 2017-06-05 | 2023-01-06 | 玉环圣弘法数控雕刻设备有限公司 | Screw rod transmission structure of engraving machine |
| CN107915170A (en) * | 2017-11-14 | 2018-04-17 | 中车长春轨道客车股份有限公司 | Lift the de- loading system of screw auxiliary of load-bearing for a long time for car lifting J-Horner |
| CN107915170B (en) * | 2017-11-14 | 2019-09-10 | 中车长春轨道客车股份有限公司 | The screw for lifting load-bearing for a long time for car lifting J-Horner assists de- loading system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160325 Address after: 528313 Guangdong City, Shunde province Chencun Town, industrial park, long Ring Road West Town, No. 1 Patentee after: KEDA CLEAN ENERGY CO., LTD. Address before: 528313 Guangdong City, Shunde province Chencun Town, industrial park, long Ring Road West Town, No. 1 Patentee before: Foshan Keda Stone-Machine Co., Ltd. |
|
| 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: 20100414 Termination date: 20170623 |