CN111473010A - Hydraulic limiting device of roadheader - Google Patents
Hydraulic limiting device of roadheader Download PDFInfo
- Publication number
- CN111473010A CN111473010A CN202010306848.2A CN202010306848A CN111473010A CN 111473010 A CN111473010 A CN 111473010A CN 202010306848 A CN202010306848 A CN 202010306848A CN 111473010 A CN111473010 A CN 111473010A
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- China
- Prior art keywords
- hydraulic
- fully
- limiting device
- excavating machine
- roadheader
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005641 tunneling Effects 0.000 abstract description 12
- 239000011435 rock Substances 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 2
- 238000006073 displacement reaction Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 4
- 239000003245 coal Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C29/00—Propulsion of machines for slitting or completely freeing the mineral from the seam
- E21C29/22—Propulsion of machines for slitting or completely freeing the mineral from the seam by wheels, endless tracks or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/26—Locking mechanisms
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Component Parts Of Construction Machinery (AREA)
Abstract
The invention relates to the technical field of comprehensive tunneling machine equipment, and discloses a hydraulic limiting device of a comprehensive tunneling machine, which comprises a comprehensive tunneling machine body, wherein a hydraulic pump station is arranged on a rear supporting frame of the comprehensive tunneling machine body, a group of seven-link valve groups are arranged at an operating handle of the comprehensive tunneling machine body, the seven-link valve groups are connected with upper limiting oil cylinders through balance valves, and the upper limiting oil cylinders are respectively fixed at the front and rear positions of a walking crawler frame of the comprehensive tunneling machine body. According to the invention, the limit work of the fully-mechanized excavating machine can be realized, and accidents such as displacement, side turning and the like of the fully-mechanized excavating machine when rock burst is displayed can be avoided; the installation is simple, the operation is simple, and the device can be popularized and applied in the same field; the full-automatic operation reduces the labor intensity of personnel, reduces the safety risk of operating personnel, and accords with the regulations of green mine construction.
Description
Technical Field
The invention relates to the technical field of fully-mechanized excavating machine equipment, in particular to a hydraulic limiting device of a fully-mechanized excavating machine.
Background
The comprehensive mechanical tunneling machine is a comprehensive mechanical device integrating multiple functions of tunneling, rock loading, coal transporting, even supporting and nailing. Due to the restriction of cutting tooth steel, the comprehensive mechanical tunneling is only suitable for all-coal roadways. After comprehensive mechanical tunneling is generally used, compared with a tunneling process of drilling and blasting, the tunneling progress can be increased by more than 30 times.
When the roadheader lacks the limiting device, the roadheader is limited by the mode that sleepers are placed on two sides of the roadheader body, and small wood stacks are piled on the top of the roadheader body, so that the roadheader is limited. When the limiting work of the comprehensive excavating machine for rock burst mines is realized by adopting a mode of placing sleepers on two sides of the machine body and stacking small wood piles on the top, the limiting steps are complicated, the manual operation speed is low, and the rock burst appearing during limiting cannot ensure the safety of personnel.
Therefore, there is a need for improvements to existing roadheaders.
Disclosure of Invention
The invention aims to provide a hydraulic limiting device of a fully-mechanized excavating machine, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the hydraulic limiting device of the fully-mechanized excavating machine comprises a fully-mechanized excavating machine body, wherein a hydraulic pump station is installed on a rear supporting frame of the fully-mechanized excavating machine body, a group of seven-link valve group is installed at an operation handle of the fully-mechanized excavating machine body, the seven-link valve group is connected with a side limiting oil cylinder through a balance valve, and the side limiting oil cylinder is respectively fixed at the front position and the rear position of a walking crawler frame of the fully-mechanized excavating machine body.
As a further scheme of the invention: the seven-way valve bank is communicated with a cooler and forms a loop with an oil tank of the fully-mechanized excavating machine body.
As a further scheme of the invention: and the hydraulic pump station is communicated with a seven-way valve bank.
As a further scheme of the invention: a base is installed on the top of a main body frame of the roadheader body, and a top limiting oil cylinder is installed on the base.
As a further scheme of the invention: and a main valve handle and each branch operating handle are arranged on the seven-way valve group.
As a still further scheme of the invention: and a stop pin is detachably arranged on the side part limiting oil cylinder.
Compared with the prior art, the invention has the beneficial effects that:
1. the limit work of the fully-mechanized excavating machine can be realized, and accidents such as displacement, side turning and the like of the fully-mechanized excavating machine when rock burst is displayed can be avoided.
2. The installation is simple, the operation is simple and the popularization and the application in the same field can be realized.
3. The full-automatic operation reduces the labor intensity of personnel, reduces the safety risk of operating personnel, and accords with the regulations of green mine construction.
Drawings
Fig. 1 is a hydraulic system diagram of a hydraulic limiting device of a roadheader.
Fig. 2 is a schematic top view of a hydraulic limiting device of the roadheader.
Fig. 3 is a partial side view structural schematic diagram of a hydraulic limiting device of the roadheader.
In the figure: the method comprises the following steps of 1-fully-mechanized excavating machine body, 2-upper part limiting oil cylinder, 3-top part limiting oil cylinder, 4-hydraulic pump station, 5-cooler, 6-seven-link valve group, 7-balancer, 8-stop pin and 9-oil tank.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. 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," "second," etc. 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 otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1 to 3, in an embodiment of the present invention, a hydraulic limiting device of a roadheader includes a roadheader body 1, a base is arranged on the top of a main body frame of the roadheader body 1, a top limit oil cylinder 3 is arranged on the base, a hydraulic pump station 4 is arranged on a rear support frame of the roadheader body 1, the hydraulic pump station 4 is communicated with a seven-way valve bank 6, the seven-way valve group 6 is provided with a main valve handle and branch operating handles, a group of seven-way valve group 6 is arranged at the operating handle of the roadheader body 1, the seven-way valve group 6 is communicated with a cooler 5, and forms a loop with an oil tank 9 of the roadheader body 1, the seven-way valve group 6 is connected with the upper part limiting oil cylinder 2 through a balance valve 7, the side part limiting oil cylinders 2 are detachably provided with stop pins 8, and the side part limiting oil cylinders 2 are respectively fixed at the front and rear positions of the walking crawler frame of the roadheader body 1.
The working principle of the invention is as follows:
1. the hydraulic system of the fully-mechanized excavating machine is improved: a hydraulic pump station 4 is additionally arranged on a rear support frame of the comprehensive excavator, a group of seven-way valve banks 6 is additionally arranged at an operation handle of the comprehensive excavator, the hydraulic pump station 4 is connected with an oil tank 9 of the comprehensive excavator, and a group of coolers 5 are installed to form a liquid supply system and an operation system of a limiting device of the comprehensive excavator. During installation, liquid supplied by the limiting oil cylinder is led out from a hydraulic pump station 4 of the fully mechanized excavating machine, the working pressure is adjusted to 7 MPa through an overflow valve, and the liquid enters an oil tank 9 from a cooler 5 of a rotary oil cylinder.
2. Installing a fully-mechanized excavating machine limiting oil cylinder: 2 oil cylinders (the length of which can be selected according to the width of a roadway) are respectively arranged at the front and the back of the walking crawler frame, a base of a top limit oil cylinder 3 is arranged on a main frame of the fully-mechanized excavating machine, and the top limit oil cylinder 3 is arranged on the base.
3. Hydraulic pipeline connection: when the hydraulic pipelines are connected, the hydraulic pipelines are led out from the seven-way valve group 6 to the limiting oil cylinders through the balance valve 7.
4. The operation of the position limiting device of the roadheader comprises the following steps: when the comprehensive excavator is operated, the oil pump is started firstly, the liquid supply main valve handle of the limiting seven-way valve group 6 is opened, then the sub-operation handles corresponding to the oil cylinders are operated, the stretching and the back-stretching actions of the limiting oil cylinders are completed, and therefore the limiting of the comprehensive excavator is completed.
5. Operation considerations: when the fully-mechanized excavating machine is stopped and limited, 4 oil cylinders at the crawler are propped against the side part of the roadway, and an oil cylinder at the installation part of a main frame of the fully-mechanized excavating machine is propped against the top of the roadway, so that the limiting of the fully-mechanized excavating machine is completed. When the fully-mechanized excavating machine needs to cut coal or move, the top oil cylinder is retracted, the oil cylinders at the crawler are retracted to the two sides of the crawler, and the stop pins 8 are additionally arranged to prevent the oil cylinders from being unfolded accidentally. 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, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. The utility model provides a combine and dig quick-witted hydraulic pressure stop device, includes to combine and dig quick-witted body (1), its characterized in that, combine and dig a rear support frame of quick-witted body (1) and install a hydraulic power unit (4), combine the operation hand (hold) department of digging quick-witted body (1) and install a set of seven and ally oneself with valves (6), seven ally oneself with valves (6) and be connected with group portion spacing hydro-cylinder (2) through balanced valve (7), group portion spacing hydro-cylinder (2) are fixed respectively on the walking track frame front and back position of digging quick-witted body (1).
2. The hydraulic limiting device of the fully-mechanized excavating machine is characterized in that the seven-way valve group (6) is communicated with a cooler (5) and forms a loop with an oil tank (9) of the fully-mechanized excavating machine body (1).
3. The hydraulic limiting device of the fully-mechanized excavating machine according to claim 1, wherein the hydraulic pump station (4) is communicated with a seven-way valve bank (6).
4. The hydraulic limiting device of the roadheader as claimed in claim 2, wherein a base is mounted on the top of the main body frame of the roadheader body (1), and a top limiting oil cylinder (3) is mounted on the base.
5. The hydraulic limiting device of the fully-mechanized excavating machine according to claim 1 or 3, wherein a main valve handle and branch operating handles are mounted on the seven-way valve group (6).
6. The hydraulic limiting device of the roadheader as claimed in claim 1, wherein the upper limiting cylinder (2) is detachably provided with a stop pin (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010306848.2A CN111473010A (en) | 2020-04-17 | 2020-04-17 | Hydraulic limiting device of roadheader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010306848.2A CN111473010A (en) | 2020-04-17 | 2020-04-17 | Hydraulic limiting device of roadheader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111473010A true CN111473010A (en) | 2020-07-31 |
Family
ID=71755399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010306848.2A Pending CN111473010A (en) | 2020-04-17 | 2020-04-17 | Hydraulic limiting device of roadheader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111473010A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080141669A1 (en) * | 2006-12-14 | 2008-06-19 | Wolfgang Voss | Device for increasing pressure in cylinders with control unit |
| CN202391427U (en) * | 2011-10-11 | 2012-08-22 | 马晓山 | Temporary support and top plate and bottom plate supporting device of rock-roadway tunneling machine |
| CN202690055U (en) * | 2012-06-15 | 2013-01-23 | 马晓山 | Joint support component for top plate and base plate of comprehensive mechanization stone drift heading machine group |
| CN104405388A (en) * | 2014-12-18 | 2015-03-11 | 河北工程大学 | Stabilizing device used for fully-mechanized excavating machine |
| CN204677218U (en) * | 2015-06-05 | 2015-09-30 | 四川川煤华荣能源股份有限公司小宝鼎煤矿 | Mining hydraulic roof-bolter drives and moving structure |
| CN109630177A (en) * | 2018-12-12 | 2019-04-16 | 邹城兖矿泰德工贸有限公司 | The all-hydraulic two-way locking system of piggyback temporary support device |
-
2020
- 2020-04-17 CN CN202010306848.2A patent/CN111473010A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080141669A1 (en) * | 2006-12-14 | 2008-06-19 | Wolfgang Voss | Device for increasing pressure in cylinders with control unit |
| CN202391427U (en) * | 2011-10-11 | 2012-08-22 | 马晓山 | Temporary support and top plate and bottom plate supporting device of rock-roadway tunneling machine |
| CN202690055U (en) * | 2012-06-15 | 2013-01-23 | 马晓山 | Joint support component for top plate and base plate of comprehensive mechanization stone drift heading machine group |
| CN104405388A (en) * | 2014-12-18 | 2015-03-11 | 河北工程大学 | Stabilizing device used for fully-mechanized excavating machine |
| CN204677218U (en) * | 2015-06-05 | 2015-09-30 | 四川川煤华荣能源股份有限公司小宝鼎煤矿 | Mining hydraulic roof-bolter drives and moving structure |
| CN109630177A (en) * | 2018-12-12 | 2019-04-16 | 邹城兖矿泰德工贸有限公司 | The all-hydraulic two-way locking system of piggyback temporary support device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200727 Address after: 744100 Huamei Avenue, Huating County, Pingliang City, Gansu Province Applicant after: HUATING COAL INDUSTRY GROUP Co.,Ltd. Address before: 744100 Huamei Avenue, Huating County, Pingliang City, Gansu Province Applicant before: Hao Rui |
|
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200731 |