CN202140044U - Tensioning and early warning mechanism of drilling machine feeding plate type chain - Google Patents
Tensioning and early warning mechanism of drilling machine feeding plate type chain Download PDFInfo
- Publication number
- CN202140044U CN202140044U CN201120242754U CN201120242754U CN202140044U CN 202140044 U CN202140044 U CN 202140044U CN 201120242754 U CN201120242754 U CN 201120242754U CN 201120242754 U CN201120242754 U CN 201120242754U CN 202140044 U CN202140044 U CN 202140044U
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- chain
- tensioning
- early warning
- ratchet
- screw mandrel
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Abstract
The utility model relates to a chain tensioning mechanism, in particular to a tensioning and early warning mechanism of a drilling machine feeding plate type chain. According to the technical scheme, the tensioning and early warning mechanism of the drilling machine feeding plate type chain comprises an installation seat fixed at the end of a mast body. A chain wheel shaft is rotatably installed on the installation seat, and a chain wheel is fixed on the chain wheel shaft. The head end of a feeding chain is connected with a feeding mechanism, and the middle section of the chain is meshed with the chain wheel. An adjusting lead screw is in threaded connection with the end of the mast body, and the inner end of the adjusting lead screw is connected with the tail end of the feeding chain. An adjusting nut is in threaded connection with the outer end of the adjusting lead screw, and a compressed spring is sleeved on the adjusting lead screw arranged between the adjusting nut and the end of the mast body. The tensioning and early warning mechanism of the drilling machine feeding plate type chain can not enable the feeding chain to form an obvious loose side or an obvious tight side so as to reduce factors which cause faults and can perform early warning in a forcing mode when the feeding chain is prolonged to a limit.
Description
Technical field
The utility model relates to a kind of chain tensioning mechanism, and especially a kind of rig feeds the tensioning and the early warning mechanism of board-like chain.
Background technology
The widely used chain tension form that feeds all is to regulate the screw mandrel pre-tightening mechanism basically in construction now.The screw mandrel of certain-length is all installed feeding the chain two ends by this mechanism, regulates through nut during assembling that chain is formed certain pretightning force.Though this mechanism is simple in structure, be widely used; But screw mandrel can only the pretension chain in real work;, chain can not compensate automatically after elongating; And, cause mechanical breakdown in roller groove because slack list and pilled-in selvedge phenomenon can appear in the different chains of duty, so very easily come off after the chain elongation.Spring is not set in mechanism in addition, can not absorbs and impact and the influence of vibration drill rig components.
Increased spring assembly at the minority feed mechanism,, failed to solve the problems such as when the chain elongation limit reaches, how to give warning in advance that feed though this mechanism has solved problems such as chain pretension, compensation, absorption impact.
Summary of the invention
The purpose of the utility model is to overcome the deficiency that exists in the prior art, provides a kind of can not making to feed chain and form tangible slack list or pilled-in selvedge, minimizing fault formative factor, feed tensioning and early warning mechanism that the rig that can force early warning when chain elongates the limit feeds board-like chain.
According to the technical scheme that the utility model provides, said rig feeds the tensioning and the early warning mechanism of board-like chain, is included in the fixing mount pad in end of mast body, on mount pad, is rotatablely equipped with sprocket shaft, on sprocket shaft, is fixed with sprocket wheel; The head end that feeds chain links to each other with feed mechanism; Feed the stage casing and the sprocket engagement of chain; Be bolted with the adjusting screw mandrel in the end of mast body; The inner end of regulating screw mandrel is connected with the tail end that feeds chain, and the outer end of regulating screw mandrel is bolted with adjusting nut, on the adjusting screw mandrel between the end of adjusting nut and mast body, is socketed with stage clip.
On sprocket shaft, be installed with ratchet.Ratchet is installed on the mount pad, and an end of ratchet cooperates with described ratchet, and an end of ratchet cooperates with the outer end of described adjusting screw mandrel; On mount pad, be fixed with limited post, near the mount pad the outer end of regulating screw mandrel, extension spring be installed, an end of extension spring is connected on the ratchet, and the other end of extension spring is connected on the mount pad, and extension spring strains ratchet and lean against on the limited post.
The utility model makes the rig can long time continuous working, and can give warning in advance and prevent mechanical breakdown, improves drilling efficiency and quality.
Description of drawings
Fig. 1 is the overall structure sketch map of the utility model.
The specific embodiment
Below in conjunction with concrete accompanying drawing and embodiment the utility model is described further.
As shown in the figure, this rig feeds the tensioning and the early warning mechanism of board-like chain, is included in the fixing mount pad 9 in end of mast body 1, on mount pad 9, is rotatablely equipped with sprocket shaft 10, on sprocket shaft 10, is fixed with sprocket wheel 11; The head end that feeds chain 2 links to each other with feed mechanism; Feed the stage casing and sprocket wheel 11 engagements of chain 2; Be bolted with adjusting screw mandrel 8 in the end of mast body 1; The inner end of regulating screw mandrel 8 is connected with the tail end that feeds chain 2, and the outer end of regulating screw mandrel 8 is bolted with adjusting nut 6, on the adjusting screw mandrel 8 between the end of adjusting nut 8 and mast body 1, is socketed with stage clip 7.
On sprocket shaft 10, be installed with ratchet 3.Ratchet 4 is installed on the mount pad 9, and an end of ratchet 4 cooperates with described ratchet 3, and an end of ratchet 4 cooperates with the outer end of described adjusting screw mandrel 8; On mount pad 9, be fixed with limited post 12; On near the mount pad 9 the outer end of regulating screw mandrel 8, extension spring 5 is installed; One end of extension spring 5 is connected on the ratchet 4, and the other end of extension spring 5 is connected on the mount pad 9, and extension spring 5 strains ratchet 4 and lean against on the limited post 12.
During normal condition, the other end of extension spring 5 is connected on the mount pad 9, and extension spring 5 strains ratchet 4 and lean against on the limited post 12, and ratchet 4 does not mesh with ratchet 3; The outer end of regulating screw mandrel 8 does not contact with ratchet 4.Regulate spring force that screw mandrel 8 relies on stage clips 7 and will feed chain 2 and be in all the time under the proper state, promptly can not make to feed chain and form tangible slack list or pilled-in selvedge, reduce the fault formative factor.
Position when adjusting screw mandrel 8 compensates to the limit; At this moment, feed chain 2 and elongate the limit, the outer end of regulating screw mandrel 8 can promote ratchet 4 and rotate; Make ratchet 4 and ratchet 3 engagements; With ratchet 3 braking, force the caution operator to feeding chain 2 and safeguard or changing, the contingency that reduces rig takes place.
Stage clip 7 can absorb rig in drilling process to feeding vibration and the impact that chain 2 produces, protect the rig workpiece better and creep into quality.Adjusting nut 6 satisfies the length compensation demand that feeds when being elongated after chain 2 is using certain hour in the position on the adjusting screw mandrel 8, satisfy the requirement of the continuous no-failure operation of rig.
Claims (3)
1. a rig feeds the tensioning and the early warning mechanism of board-like chain, is included in the fixing mount pad (9) in end of mast body (1), on mount pad (9), is rotatablely equipped with sprocket shaft (10), on sprocket shaft (10), is fixed with sprocket wheel (11); The head end that feeds chain (2) links to each other with feed mechanism; Feed the stage casing and sprocket wheel (11) engagement of chain (2); Be bolted with adjusting screw mandrel (8) in the end of mast body (1); The inner end of regulating screw mandrel (8) is connected with the tail end that feeds chain (2), and the outer end of regulating screw mandrel (8) is bolted with adjusting nut (6), it is characterized in that: on the adjusting screw mandrel (8) between the end of adjusting nut (8) and mast body (1), be socketed with stage clip (7).
2. rig as claimed in claim 1 feeds the tensioning and the early warning mechanism of board-like chain, it is characterized in that: on sprocket shaft (10), be installed with ratchet (3).
3. rig as claimed in claim 1 feeds the tensioning and the early warning mechanism of board-like chain; It is characterized in that: ratchet (4) is installed on the mount pad (9); One end of ratchet (4) cooperates with described ratchet (3), and an end of ratchet (4) cooperates with the outer end of described adjusting screw mandrel (8); On mount pad (9), be fixed with limited post (12); On near the mount pad (9) the outer end of regulating screw mandrel (8), extension spring (5) is installed; One end of extension spring (5) is connected on the ratchet (4); The other end of extension spring (5) is connected on the mount pad (9), and extension spring (5) is strained ratchet (4) and lean against on the limited post (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120242754U CN202140044U (en) | 2011-07-11 | 2011-07-11 | Tensioning and early warning mechanism of drilling machine feeding plate type chain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120242754U CN202140044U (en) | 2011-07-11 | 2011-07-11 | Tensioning and early warning mechanism of drilling machine feeding plate type chain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202140044U true CN202140044U (en) | 2012-02-08 |
Family
ID=45551105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120242754U Expired - Fee Related CN202140044U (en) | 2011-07-11 | 2011-07-11 | Tensioning and early warning mechanism of drilling machine feeding plate type chain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202140044U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278081A (en) * | 2011-07-11 | 2011-12-14 | 无锡金帆钻凿设备有限公司 | Tensioning and early warning mechanism of feeding plate-type chain in drilling machine |
-
2011
- 2011-07-11 CN CN201120242754U patent/CN202140044U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278081A (en) * | 2011-07-11 | 2011-12-14 | 无锡金帆钻凿设备有限公司 | Tensioning and early warning mechanism of feeding plate-type chain in drilling machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 214112 Jiangsu New District of Wuxi City Meicun Industrial Zone Tin Road No. 221 Patentee after: Wuxi Jinfan Drilling Equipment Co., Ltd. Address before: 214112 Jiangsu New District of Wuxi City Meicun Industrial Zone Tin Road No. 221 Patentee before: Wuxi Jinfan Drilling Equipment Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120208 Termination date: 20170711 |