CN204127568U - A kind of wet shotcreting machine delivery pipe expansion cracking proof safety protection device - Google Patents
A kind of wet shotcreting machine delivery pipe expansion cracking proof safety protection device Download PDFInfo
- Publication number
- CN204127568U CN204127568U CN201420534971.XU CN201420534971U CN204127568U CN 204127568 U CN204127568 U CN 204127568U CN 201420534971 U CN201420534971 U CN 201420534971U CN 204127568 U CN204127568 U CN 204127568U
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- Prior art keywords
- hydraulic cylinder
- pipe
- delivery pipe
- oil
- hydraulic
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Abstract
The utility model discloses a kind of wet shotcreting machine delivery pipe expansion cracking proof safety protection device, it is arranged between wet-spraying machine and delivery pipe, comprises an all flanged (FLGD) connecting tube in two ends and an oil hydraulic cylinder; Connecting tube tube wall upward orientation offers a through hole and upwards extends to form the mouth of pipe opened wide at a top along the wall of described through hole, and hydraulic cylinder body is welded on this mouth of pipe.Above-mentioned hydraulic cylinder body inwall is on the elongation line of described mouth of pipe madial wall; The side of hydraulic cylinder body offers a dumping hole; The top of hydraulic cylinder body is flanged surface, and flanged surface is also provided with top cover; Top cover is provided with a hydraulic oil oil hole, is communicated with outside hydraulic station by hydraulic oil pipe; The piston rod operative orientation of oil hydraulic cylinder is downward, and the rated insulation voltage value of delivery pipe is more than or equal to hydraulic fluid pressure during hydraulic cylinder works.The utility model is pure mechanical structure, and its structure is simple, stable, safe and reliable, and maintenance and repair workload is little and cost is low.
Description
Technical field
The utility model relates to a kind of delivery pipe expansion cracking proof safety protection device, particularly relates to a kind of wet shotcreting machine delivery pipe expansion cracking proof safety protection device.
Background technique
Sprayed concrete is by spraying machinery; utilize pressurized air or other power; by the mix coordinated by a certain percentage; by Cemented filling and with high velocity jet to being subject to spray plane; by continuous shock, the densification of cement and aggregate in course of injection, setting and harden and playing strengthen and protection by a kind of concrete of spray plane.Sprayed concrete has many features in construction process, material and structure etc. compared with normal concrete, and compared with normal concrete, as fast in speed of application, technique is simple, cost is lower; Especially little, the construction operation mode of construction area area is flexible, can in high-altitude, dell or narrow and small operation interval operate to arbitrary orientation; Use in the engineering of template at irregular element and inconvenience, its superiority is particularly evident, and therefore concrete spraying support operation is widely adopted at underground coal mine.
In underground coal mine, tunnel support construction, concrete-spraying technology is widely used, and along with the raising of concrete pump technology, sprayed concrete can realize concrete long distance, large discrepancy in elevation conveying.
If operation and prepare burden improper, delivery pipe can be caused block, even also there will be delivery pipe and burst.Its consequence not only incurs loss through delay support time and supporting quality, but also may cause casualties.The blocking booster of concrete pump affects the accident that pumpdown normally carries out, and is the problem of generality in concrete pump operation.Due to it frequent generation and be difficult to control, affect development and the popularization of pumping construction.
Model utility content
The purpose of this utility model is, what provide simple, reliable, the pure mechanical structure of a kind of structure can self-relieving wet shotcreting machine delivery pipe expansion cracking proof safety protection device.
The technological scheme that the utility model is adopted for achieving the above object is, a kind of wet shotcreting machine delivery pipe expansion cracking proof safety protection device, be arranged between wet-spraying machine and delivery pipe, it is characterized in that, comprise an all flanged (FLGD) connecting tube in two ends and an oil hydraulic cylinder;
Described connecting tube tube wall upward orientation offers a through hole; Described connecting tube tube wall upwards extends to form along the wall of described through hole the connection mouth of pipe opened wide at a top, described hydraulic cylinder body is welded on the described mouth of pipe, described spout diameter equals described hydraulic cylinder body internal diameter, and described hydraulic cylinder body inwall is on the elongation line of described mouth of pipe madial wall;
The side of described hydraulic cylinder body offers a dumping hole;
The top of described hydraulic cylinder body is flanged surface, and described flanged surface is also provided with top cover, and described top cover and described flanged surface are bolted to connection;
Described top cover is provided with a hydraulic oil oil hole, described oil hole is connected with hydraulic oil pipe, described hydraulic oil pipe is communicated with, by hydraulic station fuel feeding with outside hydraulic station;
The piston rod operative orientation of described oil hydraulic cylinder is downward;
One end of described connecting tube is connected with described wet-spraying machine, and the other end is connected with the delivery pipe of described wet-spraying machine;
The rated insulation voltage value of described delivery pipe is more than or equal to hydraulic fluid pressure during described hydraulic cylinder works.
The technique effect that technique scheme is directly brought is, its structure of wet shotcreting machine delivery pipe expansion cracking proof safety protection device is simple, reliable, can releasing pressure automatically.
Its pressure release working principle is: when the generation plugging of wet shotcreting machine delivery pipe, overpressure rises to certain value (being less than or equal to delivery pipe rated insulation voltage value) and is moved up, exposes dumping hole by promotion piston rod, ducted concrete is discharged from dumping hole, thus to the timely pressure release of delivery pipe.
Owing to adopting pure mechanical structure, this pressure release working method does not need to get final product safe and stable operation by any automation control appliance.Owing to eliminating the required Automated condtrol components and parts of prior art and control gear, on the one hand, simplify the structure of device, decrease fault origination point, improve stability and the reliability of plant running; On the other hand, decrease maintenance and repair cost and operating cost, reduce equipment manufacturing cost.
As preferably, hydraulic fluid pressure during above-mentioned hydraulic cylinder works is more than 90% of the rated insulation voltage value of described delivery pipe.
The technique effect that this optimal technical scheme is directly brought is, the maximum service pressure of delivery pipe inner concrete can be controlled more than 90% of the rated insulation voltage value at delivery pipe, main it is considered that, under the prerequisite guaranteeing safe and stable operation, reduce the amount of redundancy of the rated insulation voltage value of delivery pipe as far as possible, the investment of concrete conveyance pipeline can be saved.
Further preferably, the sidewall of dumping hole described above stretches out formation one mouth of pipe; The described mouth of pipe is connected with discharge pipe.
This optimal technical scheme directly brings technique effect to be on the one hand, be convenient to the concrete slurry released is fed to relevant position, to keep cleaner production; On the other hand, time necessary, also can connect the concrete delivery pipe of another band nozzle, proceeding should acute concrete ejection operation.
Further preferably, above-mentioned hydraulic oil pipe is also provided with pressure gauge.
This optimal technical scheme directly brings technique effect to be, the generation of this mainly convenient operation personnel Timeliness coverage or prevention concrete pipeline jam accident.
In sum, the utility model, relative to prior art, has structure simple, stable, safe and reliable, and maintenance and repair workload is little, and beneficial effect such as cost low grade.
Accompanying drawing explanation
Fig. 1 is that the utility model can the structural representation of self-relieving wet shotcreting machine delivery pipe expansion cracking proof safety protection device.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
As shown in Figure 1, wet shotcreting machine delivery pipe expansion cracking proof safety protection device of the present utility model, is arranged between wet-spraying machine and delivery pipe, and it comprises an all flanged (FLGD) connecting tube 6 in two ends and an oil hydraulic cylinder 8;
Above-mentioned connecting tube tube wall upward orientation offers a through hole;
Above-mentioned connecting tube tube wall upwards extends to form along the wall of described through hole the connection mouth of pipe opened wide at a top, hydraulic cylinder body is welded on this mouth of pipe, the internal diameter of this mouth of pipe equals the internal diameter of hydraulic cylinder body, and hydraulic cylinder body inwall is on the elongation line of this mouth of pipe madial wall;
The side of above-mentioned hydraulic cylinder body offers a dumping hole 7;
The top of above-mentioned hydraulic cylinder body is flanged surface, and this flanged surface is also provided with top cover 3, and above-mentioned top cover and flanged surface are bolted to connection;
Above-mentioned top cover is provided with a hydraulic oil oil hole, oil hole is connected with hydraulic oil pipe 1, this hydraulic oil pipe is connected, by hydraulic station fuel feeding with outside hydraulic station;
The piston rod operative orientation of above-mentioned oil hydraulic cylinder is downward;
One end of above-mentioned connecting tube is connected with wet-spraying machine, and the other end is connected with the concrete delivery pipe of wet-spraying machine;
The rated insulation voltage value of above-mentioned concrete delivery pipe is more than or equal to hydraulic fluid pressure during hydraulic cylinder works.
Hydraulic fluid pressure during above-mentioned hydraulic cylinder works is preferably more than 90% of the rated insulation voltage value of delivery pipe.
Be preferably, stretch out the sidewall of above-mentioned dumping hole formation one mouth of pipe, and be connected with discharge pipe on this mouth of pipe.Like this, on the one hand, be convenient to the concrete slurry released is fed to relevant position, to keep cleaner production; On the other hand, time necessary, also can connect the concrete delivery pipe of another band nozzle, proceeding should acute concrete ejection operation.
Above-mentioned hydraulic oil pipe is also arranged and also has pressure gauge 2.
Claims (4)
1. a wet shotcreting machine delivery pipe expansion cracking proof safety protection device, is arranged between wet-spraying machine and delivery pipe, it is characterized in that, comprises an all flanged (FLGD) connecting tube in two ends and an oil hydraulic cylinder;
Described connecting tube tube wall upward orientation offers a through hole; Described connecting tube tube wall upwards extends to form along the wall of described through hole the mouth of pipe opened wide at a top, described hydraulic cylinder body is welded on the described mouth of pipe, described spout diameter equals described hydraulic cylinder body internal diameter, and described hydraulic cylinder body inwall is on the elongation line of described mouth of pipe madial wall;
The side of described hydraulic cylinder body offers a dumping hole;
The top of described hydraulic cylinder body is flanged surface, and described flanged surface is also provided with top cover, and described top cover and described flanged surface are bolted to connection;
Described top cover is provided with a hydraulic oil oil hole, described oil hole is connected with hydraulic oil pipe, described hydraulic oil pipe is connected, by hydraulic station fuel feeding with outside hydraulic station;
The piston rod operative orientation of described oil hydraulic cylinder is downward;
One end of described connecting tube is connected with described wet-spraying machine, and the other end is connected with the delivery pipe of described wet-spraying machine;
The rated insulation voltage value of described delivery pipe is more than or equal to hydraulic fluid pressure during described hydraulic cylinder works.
2. wet shotcreting machine delivery pipe expansion cracking proof safety protection device according to claim 1, is characterized in that, hydraulic fluid pressure during described hydraulic cylinder works is more than 90% of the rated insulation voltage value of described delivery pipe.
3. wet shotcreting machine delivery pipe expansion cracking proof safety protection device according to claim 1, is characterized in that, the sidewall of described dumping hole stretches out formation one mouth of pipe;
The described mouth of pipe is connected with discharge pipe.
4. wet shotcreting machine delivery pipe expansion cracking proof safety protection device according to claim 1, is characterized in that, described hydraulic oil pipe is also provided with pressure gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420534971.XU CN204127568U (en) | 2014-09-17 | 2014-09-17 | A kind of wet shotcreting machine delivery pipe expansion cracking proof safety protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420534971.XU CN204127568U (en) | 2014-09-17 | 2014-09-17 | A kind of wet shotcreting machine delivery pipe expansion cracking proof safety protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204127568U true CN204127568U (en) | 2015-01-28 |
Family
ID=52383924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420534971.XU Withdrawn - After Issue CN204127568U (en) | 2014-09-17 | 2014-09-17 | A kind of wet shotcreting machine delivery pipe expansion cracking proof safety protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204127568U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104279397A (en) * | 2014-09-17 | 2015-01-14 | 山东科技大学 | Anti-expansion crack protecting device of concrete wet spraying machine conveying pipe |
| CN108609394A (en) * | 2016-08-16 | 2018-10-02 | 林桂花 | A kind of method of mining mortar conveying |
-
2014
- 2014-09-17 CN CN201420534971.XU patent/CN204127568U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104279397A (en) * | 2014-09-17 | 2015-01-14 | 山东科技大学 | Anti-expansion crack protecting device of concrete wet spraying machine conveying pipe |
| CN104279397B (en) * | 2014-09-17 | 2016-01-20 | 山东科技大学 | A kind of wet shotcreting machine delivery pipe expansion cracking proof safety protection device |
| CN108609394A (en) * | 2016-08-16 | 2018-10-02 | 林桂花 | A kind of method of mining mortar conveying |
| CN108609394B (en) * | 2016-08-16 | 2020-09-25 | 泉州台商投资区连进信息技术有限公司 | Method for conveying mine mortar |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150128 Effective date of abandoning: 20160120 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |