CN210738591U

CN210738591U - Coal mine tunnel strutting arrangement

Info

Publication number: CN210738591U
Application number: CN201920798936.1U
Authority: CN
Inventors: 不公告发明人
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-30
Filing date: 2019-05-30
Publication date: 2020-06-12
Anticipated expiration: 2029-05-30

Abstract

The utility model discloses a coal mine tunnel strutting arrangement, including the base, correspond on the base both ends and be equipped with the one-level support, and all weld on two one-level supports has the second grade support, on two one-level supports with be connected with cylinder and bearing bar on two second grade supports respectively, and the cylinder output shaft is connected with the bearing bar, all is connected with lift platform on two bearing bar free ends. The utility model has the advantages that the cylinder and the bearing rod are respectively arranged on the primary bracket and the secondary bracket, and the lifting platform is connected on the bearing rod, so that the cylinder connected with the bearing rod drives the bearing rod and the lifting platform to realize height adjustment in the telescopic process; utilize the cylinder to lift platform's traction simultaneously, make the telescopic link realize length adjustment between two lift platforms to the tension that utilizes the spring provides the supporting role for sliding sleeve and branch, thereby makes branch jack-up bearing plate, utilizes the bearing plate to provide the supporting role for coal mine tunnel upper end inner wall, avoids the tunnel to collapse.

Description

Coal mine tunnel strutting arrangement

Technical Field

The utility model relates to a coal mining safety maintains technical field, especially relates to a coal mine tunnel strutting arrangement.

Background

Coal is used as an important energy source in life and production, and particularly has an irreplaceable effect on the coal mine of China. Coal mine reserves are abundant in China, coal mining is an important industry in China, open pit coal mines only occupy a small part of coal mine resources, so that the coal mines need to be excavated underground, a large number of roadways are generated when the coal mines are excavated, and the roadways are excavated due to bottom layer supports.

Under traditional exploitation technique and the environment, the tunnel lacks necessary support, under the huge pressure of ground self and the strong vibrations that the exploitation leads to, the coal mine tunnel incident of collapsing takes place easily, traditional support equipment mainly adopts the plank to support, because the compressive capacity of plank is limited, and the plank of fixed length is difficult to satisfy the tunnel support requirement of the different degree of depth, then need carry out the multistage formula concatenation, but influenced by the active structure, its bearing capacity is limited, not only can make tunnel support work cause complicated loaded down with trivial details operation, also very easily addiction heavy collapse incident simultaneously, personal and property safety to coal mining workman has very big threat.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the tunnel easily collapses because of lacking adjustable support among the prior art when the coal mine is mined, and a coal mine tunnel strutting arrangement who provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a coal mine tunnel strutting arrangement, the on-line screen storage device comprises a base, it is equipped with the one-level support to correspond on the base both ends, and all welds on two one-level supports has the second grade support, two be connected with cylinder and bearing bar on the one-level support with two second grade supports respectively, and the cylinder output shaft is connected with the bearing bar, two all be connected with lift platform on the bearing bar free end, and be connected with the telescopic link between two lift platforms, and serve fixed cover in the telescopic link and be equipped with two springs, all overlap on the telescopic link both ends and be equipped with the sliding sleeve, and two sliding sleeves weld with two spring free ends mutually, two all be connected with branch, two on the sliding sleeve all the round pin hub connection has the bearing plate on the lift platform, and two branch.

Preferably, two of the primary supports are vertically arranged, and two of the secondary supports are obliquely arranged.

Preferably, the cylinder pin shaft is connected to the upper end of the first-stage support, the cylinder output shaft is connected with one end of the bearing rod close to the lifting platform through the pin shaft, and two ends of the bearing rod are respectively connected with the top end of the second-stage support and the lower end of the lifting platform through the pin shaft.

Preferably, two the lift platform is provided with logical chamber in the one end that is close to mutually correspondingly, and telescopic link both ends slip cap respectively locate two logical intracavity.

Preferably, the two sliding sleeves are respectively sleeved at two ends of the telescopic rod in a sliding manner, and the two sliding sleeves are respectively movably abutted against the two lifting platforms.

Preferably, two ends of the two support rods are respectively connected with the sliding sleeve and the bearing plate through pin shafts.

Compared with the prior art, the utility model discloses possess following advantage:

1. the utility model discloses a pin hub connection cylinder and bearing bar respectively on one-level support and second grade support, simultaneously connect lift platform at the bearing bar, utilize the flexible bearing bar deflection motion that drives of cylinder output shaft to adjust lift platform's altitude mixture control provides the supporting role of maintaining balance for lift platform simultaneously.

2. The utility model drives the two lifting platforms to move up and down through the cylinder, and simultaneously, also pulls the two lifting platforms in the horizontal direction, so that the two ends of the telescopic rod respectively slide horizontally in the two through cavities; simultaneously, the telescopic rod is supported by the sliding sleeve through the tension of the spring, and the support rod connected with the sliding sleeve provides a supporting effect for the bearing plate connected with the pin shaft, so that the bearing plate performs limiting support on the inner wall of the upper end of the roadway in the deflection moving process, and the roadway is prevented from collapsing.

To sum up, the utility model respectively installs the cylinder and the bearing rod on the primary support and the secondary support, and connects the lifting platform on the bearing rod, so that the cylinder connected with the bearing rod drives the bearing rod and the lifting platform to realize height adjustment in the expansion process; utilize the cylinder to lift platform's traction simultaneously, make the telescopic link realize length adjustment between two lift platforms to the tension that utilizes the spring provides the supporting role for sliding sleeve and branch, thereby makes branch jack-up bearing plate, utilizes the bearing plate to provide the supporting role for coal mine tunnel upper end inner wall, avoids the tunnel to collapse.

Drawings

Fig. 1 is a schematic structural view of a coal mine roadway support device provided by the utility model;

fig. 2 is the utility model provides a coal mine tunnel strutting arrangement's a partial structure enlargements.

In the figure: the device comprises a base 1, a primary support 2, a secondary support 3, a cylinder 4, a bearing rod 5, a lifting platform 6, a through cavity 7, an expansion rod 8, a spring 9, a sliding sleeve 10, a supporting rod 11 and a bearing plate 12.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, a coal mine roadway support device comprises a base 1, wherein primary supports 2 are correspondingly arranged at two ends of the base 1, secondary supports 3 are welded on the two primary supports 2, air cylinders 4 and bearing rods 5 are respectively connected on the two primary supports 2 and the two secondary supports 3, an electromagnetic relay is arranged on the support device and is electrically connected with the air cylinders 4 so as to control the opening and closing of the air cylinders 4, the output shafts of the air cylinders 4 are connected with the bearing rods 5, the free ends of the two bearing rods 5 are respectively connected with lifting platforms 6, the lifting platforms 6 are horizontally arranged, a telescopic rod 8 is connected between the two lifting platforms 6, two springs 9 are fixedly sleeved at the middle end of the telescopic rod 8, sliding sleeves 10 are respectively sleeved at two ends of the telescopic rod 8, the sliding sleeves 10 can horizontally slide between the springs 9 and the lifting platforms 6, and the two sliding sleeves 10 are respectively welded with the free ends of the two springs, the two sliding sleeves 10 are connected with supporting rods 11, the two lifting platforms 6 are connected with bearing plates 12 through pin shafts, the bearing plates 12 deflect within an acute angle range by taking pin shaft connecting ends as supporting points to abut against the inner wall of the upper end of a roadway, and the free ends of the two supporting rods 11 are connected with the two bearing plates 12 respectively.

Two one-level supports 2 set up perpendicularly, and the 3 slope settings of two second grade supports, and 4 pin hub connections in one-level support 2 upper ends in the cylinder, and 4 output shafts in the cylinder and bearing bar 5 are close to the one end pin hub connection of lift platform 6 to 4 deflection movements in the cylinder, 5 both ends in the bearing bar respectively with 3 tops of second grade support and 6 lower extreme pin hub connections of lift platform, so that 5 deflection movements in the bearing bar.

Two elevating platform 6 correspond in the one end that is close to mutually and have seted up

logical chamber

7, and 8 both ends of telescopic link slip cap respectively locate two logical chambeies 7 in, two sliding sleeves 10 slip cap respectively locate on 8 both ends of telescopic link, and two sliding sleeves 10 respectively with two elevating platform 6 activity counterbalance.

Two ends of the two support rods 11 are respectively connected with the sliding sleeve 10 and the bearing plate 12 through pin shafts, so that the bearing plate 12 is provided with a limiting and supporting function in the inclined direction.

The utility model discloses its functional principle is explained to following mode of operation of accessible:

under initial condition, two bearing bars 5 are all in and tend to the level, and two lift platform 6 are close to mutually, and two logical chambeies 7 are located to the cover of 8 both ends great length respectively.

Control is opened to two cylinders 4 through electromagnetic relay, makes two cylinders 4's output shaft constantly outwards prolong to jack-up the free end of bearing bar 5, make two bearing bar 5 constantly tend to perpendicularly, two elevating platform 6 constantly rise.

The two lifting platforms 6 are continuously far away under the traction action of the bearing rod 5, so that two ends of the telescopic rod 8 respectively slide in the two through cavities 7, and the exposed length of the telescopic rod 8 is continuously increased; meanwhile, the two lifting platforms 6 respectively reduce the extrusion on the sliding sleeves 10 and the springs 9, so that the two sliding sleeves 10 are continuously far away, and meanwhile, under the tension action of the two springs 9, the supporting rod 11 connected with the sliding sleeves 10 continuously tends to be vertical to jack the bearing plate 12, so that the two bearing plates 12 are supported, and the bearing plate 12 is abutted to the inner wall of the upper end of the roadway to realize limiting support.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A coal mine roadway supporting device comprises a base (1) and is characterized in that primary supports (2) are correspondingly arranged at two ends of the base (1), secondary supports (3) are welded on the two primary supports (2), a cylinder (4) and a bearing rod (5) are respectively connected onto the two primary supports (2) and the two secondary supports (3), an output shaft of the cylinder (4) is connected with the bearing rod (5), the free ends of the two bearing rods (5) are respectively connected with a lifting platform (6), a telescopic rod (8) is connected between the two lifting platforms (6), two springs (9) are fixedly sleeved on the middle end of the telescopic rod (8), sliding sleeves (10) are respectively sleeved on two ends of the telescopic rod (8), the two sliding sleeves (10) are respectively welded with the free ends of the two springs (9), and a support rod (11) is respectively connected onto the two sliding sleeves (10), two all round pin hub connection has bearing plate (12) on lift platform (6), and two spinal branch poles (11) free end are connected with two bearing plates (12) respectively.

2. A coal mine tunnel supporting device according to claim 1, characterized in that two primary supports (2) are vertically arranged and two secondary supports (3) are obliquely arranged.

3. The coal mine roadway supporting device according to claim 2, wherein the cylinder (4) is connected to the upper end of the primary support (2) through a pin shaft, an output shaft of the cylinder (4) is connected with one end, close to the lifting platform (6), of the bearing rod (5) through a pin shaft, and two ends of the bearing rod (5) are respectively connected with the top end of the secondary support (3) and the lower end of the lifting platform (6) through pin shafts.

4. The coal mine roadway supporting device according to claim 3, wherein a through cavity (7) is correspondingly formed in one end, close to each other, of the two lifting platforms (6), and two ends of the telescopic rod (8) are respectively sleeved in the two through cavities (7) in a sliding mode.

5. The coal mine roadway supporting device according to claim 4, wherein the two sliding sleeves (10) are respectively sleeved on two ends of the telescopic rod (8) in a sliding manner, and the two sliding sleeves (10) are respectively movably abutted against the two lifting platforms (6).

6. A coal mine tunnel supporting device according to claim 5, characterized in that two ends of the two supporting rods (11) are respectively connected with the sliding sleeve (10) and the bearing plate (12) through pin shafts.