CN220869451U - Extension device of mining pushing rod - Google Patents

Abstract

The utility model provides a mining extension fixture who passes pole, includes the extension pole, and the extension pole includes first body of rod and second body of rod to be connected through telescopic machanism between first body of rod and the second body of rod, first body of rod still fixedly connected with at least one tongue board that is used for connecting the joint of passing the pole, second body of rod still fixedly connected with connect. According to the extension device, the length of the extension rod can be adjusted by arranging the telescopic mechanism between the first rod body and the second rod body, so that the extension device is suitable for the cutting lengths of different fully-mechanized mining working faces.

Description

Extension device of mining pushing rod

Technical Field

The utility model relates to the technical field of underground coal mine supporting equipment, in particular to an extension device of a mining pushing rod.

Background

The whole frame moving process of the coal mine hydraulic support comprises the following steps: the pushing jack stretches, the pushing rod stretches out to push the scraper conveyor to move forward one step distance, then the pushing jack is retracted, the pushing rod is retracted, the scraper conveyor is reacted on the support to drive the support to move forward one step distance, and the hydraulic support frame moving is completed. As shown in fig. 2, one end of the pushing rod is connected with the conveyor through a joint, and the other end of the pushing rod is connected with the pushing jack. Because the length of the cutting hole of the fully mechanized mining face of the company is prolonged, the length of the pushing rod is insufficient, the transition head frame of the fully mechanized mining face is required to be additionally arranged, but the length of the additionally arranged transition head frame is fixed, when the primary pushing slide footage does not reach one cycle, the secondary frame moving and sliding slide are required to be carried out, and the production cycle of the face is influenced.

Because the requirements for the length of the pushing rod are different in different working conditions, the pushing rod is required to be customized, but the customized pushing rod has the advantages of high cost, long manufacturing period and high installation difficulty.

Disclosure of utility model

In order to solve the problem that the length of a pushing rod cannot be adjusted in the prior art, the utility model provides the extension device of the mining pushing rod, and the length of the extension rod can be adjusted by arranging the telescopic mechanism between the first rod body and the second rod body, so that the extension device is suitable for different working conditions.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the utility model provides a mining extension fixture who passes pole, includes the extension pole, and the extension pole includes first body of rod and second body of rod to be connected through telescopic machanism between first body of rod and the second body of rod, first body of rod still fixedly connected with at least one tongue board that is used for connecting the joint of passing the pole, second body of rod still fixedly connected with connect.

Further optimizing as the extension device of the mining pushing rod: all the tongue plates are fixedly connected with a connecting screw rod together, and screw holes matched with the connecting screw rod are formed in the first rod body.

Further optimizing as the extension device of the mining pushing rod: the number of the tongue plates is two, the two tongue plates are fixedly connected through the connecting block, and a gap for accommodating the joint is formed between the two tongue plates.

Further optimizing as the extension device of the mining pushing rod: the telescopic mechanism comprises a threaded column coaxially and fixedly connected with the first rod body and a threaded sleeve coaxially and fixedly connected with the second rod body, and the threaded column is matched with the threaded sleeve.

Further optimizing as the extension device of the mining pushing rod: the telescopic mechanism comprises a connecting pipe, the first rod body and the second rod body are respectively inserted into the connecting pipe from two ends of the connecting pipe, and the connecting pipe is connected with the first rod body or the second rod body through a locating pin.

Further optimizing as the extension device of the mining pushing rod: the first rod body and the second rod body are provided with a plurality of pin holes extending along the axial direction.

Further optimizing as the extension device of the mining pushing rod: the extension rod and the tongue plate are made of steel.

Further optimizing as the extension device of the mining pushing rod: the outer wall of extension rod is equipped with a plurality of handles.

Further optimizing as the extension device of the mining pushing rod: the handle is wound with a binding band.

Compared with the prior art, the utility model has the following beneficial effects: according to the extension device, the length of the extension rod can be adjusted by arranging the telescopic mechanism between the first rod body and the second rod body, so that the extension device is suitable for the cutting lengths of different fully-mechanized mining working faces.

Drawings

FIG. 1 is a schematic view of the structure of an extension device of a mining push rod of the present utility model;

FIG. 2 is a schematic view of the structure of the pusher bar;

FIG. 3 is a schematic view of the structure of the tongue plate in the extension device of the mining pushing rod;

FIG. 4 is a schematic view of the telescopic mechanism of an embodiment of an extension apparatus for a mining push rod according to the present utility model;

FIG. 5 is a schematic view of a telescopic mechanism in a second embodiment of an extension apparatus for a mining push rod according to the present utility model;

Reference numerals: 1. the pushing rod, 2, the joint, 3, the locating pin, 4, the extension rod, 5, the tongue plate, 6, the connecting screw, 7, the handle, 8, the first rod body, 9, the second rod body, 10, the screw thread post, 11, the screw thread sleeve, 12, the pin hole, 13, the connecting pipe, 14 and the connecting block.

Detailed Description

The technical solutions of the present utility model are further described in detail below with reference to specific embodiments, and the portions of the present utility model that are not specifically described and disclosed in the following embodiments should be understood as the prior art that is or should be known to those skilled in the art.

Example 1

As shown in fig. 1, 2 and 4, the extension device of the mining pushing rod comprises an extension rod 4, wherein the extension rod 4 comprises a first rod body 8 and a second rod body 9, the first rod body 8 and the second rod body 9 are connected through a telescopic mechanism, and the length of the extension rod 4 can be prolonged by adjusting the telescopic mechanism, so that the extension device is suitable for cutting lengths of different fully-mechanized mining working surfaces. The first rod body 8 is also fixedly connected with at least one tongue plate 5 for connecting the joint 2 of the pushing rod 1, and the second rod body 9 is also fixedly connected with the joint 2.

As shown in fig. 3, all the tongue plates 5 are fixedly connected with the connecting screw rod 6, the screw holes matched with the connecting screw rod 6 are formed in the first rod body 8, the tongue plates 5 are in threaded connection with the first rod body 8, and the threaded connection has the advantages of simple structure, reliable connection, convenience in assembly and disassembly and the like, so that the connection between the tongue plates 5 and the first rod body 8 is firmer, and when the tongue plates 5 are damaged, the tongue plates 5 are convenient to replace.

The number of the tongue plates 5 is two, the two tongue plates 5 are fixedly connected through the connecting block 14, a gap for accommodating the joint 2 is formed between the two tongue plates 5, the joint 2 of the pushing rod 1 is inserted into the gap between the two tongue plates 5, through holes in the joint 2 of the pushing rod 1 are aligned with the through holes in the two tongue plates 5, the pin is used for fixing, the joint 2 of the pushing rod 1 is connected with the tongue plates 5, the pushing rod 1 is ensured not to be inclined when being pushed, the pushing force of the pushing rod 1 is always kept in the middle axis direction, the through holes in the joint 2 of the pushing rod 1 are the same as the through hole diameter in the tongue plates 5, the joint 2 and the tongue plates 5 are assembled by adopting a taper pin, and the taper pin is easy to install, has reliable self-locking performance and high positioning precision and can not influence positioning precision and connection reliability after being assembled and disassembled for many times in the same pin hole.

The telescopic mechanism comprises a threaded column 10 which is coaxially and fixedly connected with the first rod body 8 and a threaded sleeve 11 which is coaxially and fixedly connected with the second rod body 9, the threaded column 10 is matched with the threaded sleeve 11, the threaded column 10 is welded at the end part of the first rod body 8, the threaded sleeve 11 is welded at the end part of the second rod body 9, the first rod body 8 and the second rod body 9 are connected through the threaded column 10 and the threaded sleeve 11, and the length of the extension rod 4 is adjusted by adjusting the length of the threaded column 10 in the threaded sleeve 11.

The extension rod 4 and the tongue plate 5 are made of steel, and the steel has the advantages of high strength, good plasticity and toughness, so that the working reliability of the extension rod 4 and the tongue plate 5 is ensured, and the service lives of the extension rod 4 and the tongue plate 5 are prolonged.

Because the weight of the pushing rod 1 is relatively large, for example, the weight of the pushing rod 1 adopted by my company at present reaches 46kg, the extending rod 4 needs to have enough strength, in the embodiment, the extending rod 4 adopts a thick steel plate with 20-30mm, so that the extending rod 4 can bear the pushing force transmitted by the pushing rod 1, and the service life of the whole device is prolonged.

In this embodiment, since the extension rod 4 has a heavy weight, a plurality of people are required to lift the extension rod 4, and thus, a plurality of handles 7 are provided on the outer wall of the extension rod 4, so that the extension rod 4 is conveniently mounted on the pushing rod 1, and after the mounting is completed, the extension rod 4 is conveniently lifted.

The handle 7 is wound with a binding band, so that the friction force between the handle 7 and the hands of a worker is improved in the lifting and transporting process, and the stability of the lifting and transporting process is ensured.

Example two

As shown in fig. 5, the main structure of the present embodiment is the same as that of the first embodiment, except that: the telescopic machanism includes connecting pipe 13, and first body of rod 8 and second body of rod 9 insert in connecting pipe 13 respectively from the both ends of connecting pipe 13, through adjusting the length of first body of rod 8 and second body of rod 9 in connecting pipe 13, adjust the length of extension rod 4, connecting pipe 13 is connected with first body of rod 8 or second body of rod 9 through locating pin 3, and locating pin 3 adopts the taper pin, and the taper pin easily installs, has reliable self-locking performance, positioning accuracy height to install and remove many times in same pinhole can not influence positioning accuracy and the reliability of connection.

The first rod body 8 and the second rod body 9 are provided with a plurality of pin holes 12 extending along the axial direction, the diameter of the pin holes 12 is reduced, the number of the pin holes 12 is increased, and the precision of the extension device is improved.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (9)

1. An extension fixture of mining pushing rod, its characterized in that: including extension rod (4), extension rod (4) include first body of rod (8) and second body of rod (9) to be connected through telescopic machanism between first body of rod (8) and the second body of rod (9), first body of rod (8) still fixedly connected with at least one tongue (5) that are used for connecting joint (2) of pushing rod (1), second body of rod (9) still fixedly connected with joint (2).

2. The extension device for a mining pusher bar according to claim 1, wherein: all the tongue plates (5) are fixedly connected with a connecting screw rod (6) together, and screw holes matched with the connecting screw rod (6) are formed in the first rod body (8).

3. A mining push rod extension apparatus as claimed in claim 2, wherein: the number of the tongue plates (5) is two, the two tongue plates (5) are fixedly connected through the connecting block (14), and a gap for accommodating the joint (2) is formed between the two tongue plates (5).

4. The extension device for a mining pusher bar according to claim 1, wherein: the telescopic mechanism comprises a threaded column (10) which is coaxially and fixedly connected with the first rod body (8) and a threaded sleeve (11) which is coaxially and fixedly connected with the second rod body (9), and the threaded column (10) is matched with the threaded sleeve (11).

5. The extension device for a mining pusher bar according to claim 1, wherein: the telescopic mechanism comprises a connecting pipe (13), the first rod body (8) and the second rod body (9) are respectively inserted into the connecting pipe (13) from two ends of the connecting pipe (13), and the connecting pipe (13) is connected with the first rod body (8) or the second rod body (9) through a locating pin (3).

6. The extension device for a mining push rod as claimed in claim 5, wherein: the first rod body (8) and the second rod body (9) are provided with a plurality of pin holes (12) extending along the axial direction.

7. The extension device for a mining pusher bar according to claim 1, wherein: the extension rod (4) and the tongue plate (5) are made of steel.

8. The extension device for a mining pusher bar according to claim 1, wherein: the outer wall of the extension rod (4) is provided with a plurality of handles (7).

9. The extension device for a mining pusher bar according to claim 8, wherein: the handle (7) is wound with a binding band.