CN204402515U - Hydraulic support and bottom lifting device thereof - Google Patents
Hydraulic support and bottom lifting device thereof Download PDFInfo
- Publication number
- CN204402515U CN204402515U CN201420824240.9U CN201420824240U CN204402515U CN 204402515 U CN204402515 U CN 204402515U CN 201420824240 U CN201420824240 U CN 201420824240U CN 204402515 U CN204402515 U CN 204402515U
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- China
- Prior art keywords
- cylinder
- pushing tow
- hydraulic support
- lifting device
- mounting cylinder
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- Expired - Fee Related
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Abstract
The utility model relates to hydraulic support and bottom lifting device thereof, bottom lifting device comprises the mounting cylinder that the axis for being arranged in use on corresponding hydraulic support extends along the vertical direction, arrange pushing tow cylinder in mounting cylinder, pushing tow cylinder has the piston rod that is connected with mounting cylinder and to lead the cylinder body of the push rod for pushing tow hydraulic support be slidably matched with mounting cylinder.The piston rod of pushing tow cylinder is connected on mounting cylinder, and the cylinder body of propulsion arm then leads with mounting cylinder and is slidably matched, and realizes normally trying to stop people from fighting each other to make the front end of rack body lift by the cylinder body pushing tow push rod of pushing tow cylinder.Installation sleeve and install carrier for pushing tow cylinder provides one, again for cylinder body provides guiding, ensure the pushing tow position of propulsion arm, the structure of whole bottom lifting device is simple, and cost of manufacture is lower.
Description
Technical field
The utility model relates to hydraulic support and bottom lifting device thereof.
Background technology
In process of coal mining; need to use hydraulic support to support coal seam; along with the increase of the coal mining degree of depth; hydraulic support is needed to move forward; to adapt to the change of the coal mining degree of depth; but due to most down-holes complex geologic conditions; base plate is that the mud stone of soft easy argillization or argillaceous sandstone are comparatively general; during hydraulic support underground running job; often there will be the phenomenon at the bottom of the bundle of front end, namely the front end of hydraulic support sinks, and hydraulic support can not normally be tried to stop people from fighting each other; affect normal working face, even occur security incident problem.In actual production process, when hydraulic support front end sinks, the front end of hydraulic support is lifted by the general bottom lifting device that adopts, and process is: bottom lifting device promotes to be arranged on the push rod in hydraulic support in gear, due to rear end and the hydraulic support frame hinging of push rod, so the front end of hydraulic support can be lifted.Existing bottom lifting device and hydraulic support disclosed in Chinese patent CN104196552A " bottom lifting device and hydraulic support ", hydraulic rack structure in the disclosure file is complicated, cost of manufacture and fault rate high.
Summary of the invention
The purpose of this utility model is to provide a kind of structure simple bottom lifting device; The purpose of this utility model is also to provide a kind of hydraulic support using this bottom lifting device.
In order to solve the problem, in the utility model, the technical scheme of bottom lifting device is:
The bottom lifting device of hydraulic support, comprise the mounting cylinder that the axis for being arranged in use on corresponding hydraulic support extends along the vertical direction, arrange pushing tow cylinder in mounting cylinder, pushing tow cylinder has the piston rod that is connected with described mounting cylinder and to lead the cylinder body of the push rod for hydraulic support described in pushing tow be slidably matched with described mounting cylinder.
Mounting cylinder is arranged on hydraulic support by mount pad, mount pad is provided with for realizing the bolt fastening structure be fixed on by mount pad on described hydraulic support.
Described bolt fastening structure comprises the connecting bolt or bolt penetration hole that axis extends along the longitudinal direction.
In the utility model, the technical scheme of hydraulic support is:
Hydraulic support, comprise the push rod that rack body, bottom lifting device and rear end and rack body are hinged and connected, bottom lifting device comprises the mounting cylinder being arranged at the axis on described rack body and extending along the vertical direction, arrange pushing tow cylinder in mounting cylinder, pushing tow cylinder has the piston rod that is connected with described mounting cylinder and to lead the cylinder body for push rod described in pushing tow be slidably matched with described mounting cylinder.
Mounting cylinder is arranged on rack body by mount pad, mount pad is provided with for realizing the bolt fastening structure be fixed on by mount pad on described rack body.
Described bolt fastening structure comprises the connecting bolt or bolt penetration hole that axis extends along the longitudinal direction.
The beneficial effects of the utility model are: the piston rod of pushing tow cylinder is connected on mounting cylinder, and the cylinder body of propulsion arm then leads with mounting cylinder and is slidably matched, and realizes normally trying to stop people from fighting each other to make the front end of rack body lift by the cylinder body pushing tow push rod of pushing tow cylinder.Installation sleeve and install carrier for pushing tow cylinder provides one, again for cylinder body provides guiding, ensure the pushing tow position of propulsion arm, the structure of whole bottom lifting device is simple, and cost of manufacture is lower.
Further, mount pad is bolted structure and is connected with rack body, this also just means when not needing mobile hydraulic support, bottom lifting device can be laid down by rack body, such bottom lifting device just need not take space, sidewalk, and this class formation is highly suitable for using in the lower coal mining environment of coal seam height.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of hydraulic support in the utility model;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the structural representation of bottom lifting device in Fig. 1, is also the structural representation of an embodiment of bottom lifting device in the utility model simultaneously;
Fig. 4 be Fig. 3 there is no a pushing tow cylinder time right view.
Detailed description of the invention
The embodiment of hydraulic support is as shown in Fig. 1 ~ 4: comprise the push rod 3 that rack body 2, bottom lifting device 1 and rear end and rack body are hinged and connected, and rack body 2 belongs to prior art with the matching relationship of push rod 3, is not described in detail in this.Bottom lifting device comprises and is bolted the mount pad 4 of anatomical connectivity on rack body 2, mount pad 4 is installed with the mounting cylinder 7 that axis extends along the vertical direction, bolt fastening structure comprises the mount pad bolt penetration hole that axis extends along the longitudinal direction, rack body is provided with rack body bolt penetration hole corresponding with mount pad bolt penetration hole, in mount pad bolt penetration hole, rack body bolt penetration hole, is coated with set bolt 8.Be provided with pushing tow cylinder in mounting cylinder, pushing tow cylinder has the piston rod 5 that is hinged and connected with mounting cylinder and to lead the cylinder body 6 for pushing tow push rod be slidably matched with mounting cylinder.
When not needing mobile hydraulic support, set bolt of dismantling, dismantles bottom lifting device by rack body, such bottom lifting device can not take space, sidewalk, when operating personnel come and go and walk about in sidewalk, need not bottom lifting device be crossed, be highly suitable for using in the colliery that coal seam height is lower.Before the needs during moving hydraulic support, be installed on rack body by set bolt by mount pad, the cylinder body of pushing tow cylinder stretches out pushing tow push rod and rack body front end is lifted, thus completes and normally try to stop people from fighting each other, and installation sleeve ensure that the pushing tow position of pushing tow cylinder.In other embodiment of this hydraulic support: mount pad bolt penetration hole also can not be established, now can be provided with connecting bolt on mount pad, now rack body arrange the bolt penetration hole corresponding with connecting bolt; The axis of mount pad bolt penetration hole can also extend in left-right direction; Certain mount pad also can not be established, and now installation sleeve can be directly fixedly arranged on rack body by welding or bolt type of attachment.
The embodiment of bottom lifting device is as shown in Fig. 3 ~ 4: the concrete structure of bottom lifting device is identical with the bottom lifting device described in above-mentioned each hydraulic support embodiment, is not described in detail in this.
Claims (6)
1. the bottom lifting device of hydraulic support, it is characterized in that: comprise the mounting cylinder that the axis for being arranged in use on corresponding hydraulic support extends along the vertical direction, arrange pushing tow cylinder in mounting cylinder, pushing tow cylinder has the piston rod that is connected with described mounting cylinder and to lead the cylinder body of the push rod for hydraulic support described in pushing tow be slidably matched with described mounting cylinder.
2. bottom lifting device according to claim 1, is characterized in that: mounting cylinder is arranged on hydraulic support by mount pad, mount pad is provided with for realizing the bolt fastening structure be fixed on by mount pad on described hydraulic support.
3. bottom lifting device according to claim 2, is characterized in that: described bolt fastening structure comprises the connecting bolt or bolt penetration hole that axis extends along the longitudinal direction.
4. hydraulic support, comprise the push rod that rack body, bottom lifting device and rear end and rack body are hinged and connected, it is characterized in that: bottom lifting device comprises the mounting cylinder being arranged at the axis on described rack body and extending along the vertical direction, arrange pushing tow cylinder in mounting cylinder, pushing tow cylinder has the piston rod that is connected with described mounting cylinder and to lead the cylinder body for push rod described in pushing tow be slidably matched with described mounting cylinder.
5. hydraulic support according to claim 4, is characterized in that: mounting cylinder is arranged on rack body by mount pad, mount pad is provided with for realizing the bolt fastening structure be fixed on by mount pad on described rack body.
6. hydraulic support according to claim 5, is characterized in that: described bolt fastening structure comprises the connecting bolt or bolt penetration hole that axis extends along the longitudinal direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420824240.9U CN204402515U (en) | 2014-12-24 | 2014-12-24 | Hydraulic support and bottom lifting device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420824240.9U CN204402515U (en) | 2014-12-24 | 2014-12-24 | Hydraulic support and bottom lifting device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204402515U true CN204402515U (en) | 2015-06-17 |
Family
ID=53426384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420824240.9U Expired - Fee Related CN204402515U (en) | 2014-12-24 | 2014-12-24 | Hydraulic support and bottom lifting device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204402515U (en) |
-
2014
- 2014-12-24 CN CN201420824240.9U patent/CN204402515U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 Termination date: 20161224 |