CN210637345U

CN210637345U - Screw rod structure of mining machinery

Info

Publication number: CN210637345U
Application number: CN201920731900.1U
Authority: CN
Inventors: 王艳宜
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-21
Filing date: 2019-05-21
Publication date: 2020-05-29
Anticipated expiration: 2029-05-21

Abstract

The utility model discloses a mining machinery's screw rod structure relates to mining machinery part technical field, specifically is a mining machinery's screw rod structure, including the screw rod, the surface of screw rod is provided with the screw thread section, the screw rod has fixed hex bolts through screw thread section threaded connection, one side threaded connection that the screw rod surface is located fixed hex bolts has fixed casing. This screw rod structure of mining machinery, through the design of fixed casing and expansion link, make fixed hex bolts can not become flexible because of mining machinery's vibrations, prop the screw rod from inside through the expansion link and enlarge, it can not become flexible to have guaranteed that fixed hex bolts can not be guaranteed, and, effort is applyed to fixed hex bolts to first barrel, fixed effect of fixed hex bolts has further been promoted, and simultaneously, when the bolt produced vibrations, fixed casing and expansion link and screw rod direction of connection's difference have guaranteed that fixed casing can not become flexible because of vibrations with the expansion link.

Description

Screw rod structure of mining machinery

Technical Field

The utility model relates to a mining machinery part technical field specifically is a mining machinery's screw rod structure.

Background

The mining machine is a machine directly used for operations such as mineral mining and beneficiation, and comprises a mining machine and a beneficiation machine, the working principle and structure of the prospecting machine are mostly the same as or similar to those of the mining machine used for mining similar minerals, in a broad sense, the prospecting machine also belongs to the mining machine, in addition, a large number of cranes, conveyors, ventilators, drainage machines and the like are also applied in the mining operation, and the mining machine is divided into a crushing device, the mining machine, an excavating machine, a drilling machine, a tunneling machine, a coal mining machine, an oil drilling machine, a beneficiation machine and a drying machine.

Because of the particularity of the working environment of the mining machine, the strong earthquake environment and the serious vibration of the mining machine, a fixing bolt and a screw of the mining machine are easy to loosen, so that great potential safety hazards exist, and a screw structure of the mining machine is provided at present.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a mining machinery's screw rod structure has solved the problem of proposing in the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a mining machinery's screw rod structure, includes the screw rod, the surface of screw rod is provided with the screw thread section, the screw rod has fixed hex bolts through screw thread section threaded connection, one side threaded connection that the screw rod surface is located fixed hex bolts has fixed casing, the inside threaded connection of screw rod has the expansion link.

Optionally, the fixed shell is composed of a first cylinder and a connecting hexagon bolt, the first cylinder is fixedly connected with the connecting hexagon bolt, reverse threads are arranged on the inner wall of the first cylinder, and the first cylinder is in threaded connection with the screw rod through the reverse threads.

Optionally, an insertion hole is formed in the axis of the screw, and a cross groove is formed in the screw.

Optionally, a first positive thread is arranged inside the insertion hole, and the screw rod is in threaded connection with the expansion rod through the positive thread.

Optionally, one end of the expansion rod is fixedly connected with a connecting block, and a second positive thread is arranged on the outer surface of the connecting block.

Optionally, the connecting block is in threaded connection with a connecting hexagon bolt through a second positive thread, and a hexagon screwing block is fixedly connected to one side of the connecting block, which is far away from the expansion rod.

(III) advantageous effects

The utility model provides a mining machinery's screw rod structure possesses following beneficial effect:

1. the screw structure of the mining machine ensures that the fixed hexagonal bolt cannot be loosened due to the vibration of the mining machine through the design of the fixed shell and the expansion rod, when in use, after the screw is connected with relevant parts of the mining machine, the fixed hexagonal bolt is connected and screwed with the screw, the fixed shell is connected with the screw, one end of the first cylinder is contacted with the fixed hexagonal bolt, finally, the expansion rod is connected with the screw through the first positive thread in the jack, meanwhile, the connecting block is connected with the connecting hexagonal bolt through the second positive thread, the screw is expanded from the inside through the expansion rod, the fixed hexagonal bolt cannot be loosened, in addition, the first cylinder exerts acting force on the fixed hexagonal bolt, the fixing effect of the fixed hexagonal bolt is further improved, meanwhile, when the bolt generates vibration, the connecting directions of the fixed shell and the expansion rod are different from the screw, the fixed shell and the expansion rod are ensured not to be loosened due to vibration.

Drawings

FIG. 1 is a schematic view of the cross-sectional structure of the present invention;

FIG. 2 is a schematic side view of the screw of the present invention;

FIG. 3 is a schematic view of the screw rod of the present invention;

fig. 4 is a schematic view of the structure of the present invention.

In the figure: 1. a screw; 2. a threaded segment; 3. fixing a hexagon bolt; 4. a stationary housing; 5. an expansion rod; 6. a first cylinder; 7. connecting a hexagon bolt; 8. reverse threads; 9. a jack; 10. a cross groove; 11. A first positive thread; 12. connecting blocks; 13. a second positive thread; 14. and a hexagonal screwing block.

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 to 4, the present invention provides a technical solution: a screw structure of mining machinery comprises a screw 1, a jack 9 is arranged at the axis of the screw 1, a cross groove 10 is arranged inside the screw 1, the design of the cross groove 10 evenly divides the screw 1 into four parts, which is beneficial to the expansion of the screw 1, a first forward thread 11 is arranged inside the jack 9, the screw 1 is in threaded connection with an expansion rod 5 through the forward thread 11, a thread section 2 is arranged on the outer surface of the screw 1, the screw 1 is in threaded connection with a fixed hexagonal bolt 3 through the thread section 2, a fixed shell 4 is in threaded connection with one side of the outer surface of the screw 1, which is positioned on the fixed hexagonal bolt 3, the fixed shell 4 consists of a first cylinder 6 and a connecting hexagonal bolt 7, the first cylinder 6 is fixedly connected with the connecting hexagonal bolt 7, a reverse thread 8 is arranged on the inner wall of the first cylinder 6, and the first cylinder 6 is in threaded connection with the screw 1 through the reverse thread, the inside threaded connection of screw rod 1 has expansion link 5, expansion link 5's diameter slightly is greater than the internal diameter of jack 9 for when expansion link 5 is located jack 9 inside, prop screw rod 1 big, expansion link 5's one end fixedly connected with connecting block 12, and the surface of connecting block 12 is provided with second forward screw thread 13, connecting block 12 through second forward screw thread 13 with be connected hexagon bolt 7 threaded connection, and connecting block 12 keeps away from one side fixedly connected with hexagonal of expansion link 5 and twists piece 14.

In the first embodiment, in use, after the screw rod 1 is connected with the relevant part of the mining machine, the fixing hexagon bolt 3 is connected with the screw rod 1 and screwed, and then the fixing shell 4 is connected with the screw rod 1, so that one end of the first cylinder 6 is in contact with the fixing hexagon bolt 3, and finally the expansion rod 5 is in threaded connection with the screw rod 1 through the first forward thread 11 in the insertion hole 9, and meanwhile, the connecting block 12 is in threaded connection with the connecting hexagon bolt 7 through the second forward thread.

In summary, in the screw structure of the mining machine, the fixed hexagon bolt 3 is not loosened by the vibration of the mining machine due to the design of the fixed casing 4 and the expansion rod 5, when in use, after the screw 1 is connected with the relevant part of the mining machine, the fixed hexagon bolt 3 is connected with the screw 1 and screwed down, the fixed casing 4 is connected with the screw 1, one end of the first cylinder 6 is contacted with the fixed hexagon bolt 3, finally, the expansion rod 5 is in threaded connection with the screw 1 through the first forward thread 11 in the insertion hole 9, meanwhile, the connecting block 12 is in threaded connection with the connecting hexagon bolt 7 through the second forward thread, the screw 1 is expanded from the inside through the expansion rod 5, so that the fixed hexagon bolt 3 is not loosened, and the first cylinder 6 exerts an acting force on the fixed hexagon bolt 3, so as to further improve the fixing effect of the fixed hexagon bolt 3, meanwhile, when the bolt 1 vibrates, the connection directions of the fixed shell 4 and the expansion rod 5 and the screw rod 1 are different, so that the fixed shell 4 and the expansion rod 5 are prevented from loosening due to vibration.

Claims

1. The utility model provides a mining machinery's screw rod structure, includes screw rod (1), its characterized in that: the surface of screw rod (1) is provided with screw thread section (2), screw rod (1) has fixed hex bolts (3) through screw thread section (2) threaded connection, one side threaded connection that screw rod (1) surface is located fixed hex bolts (3) has fixed casing (4), the inside threaded connection of screw rod (1) has expansion link (5).

2. The screw structure of a mining machine according to claim 1, wherein: fixed casing (4) comprise first barrel (6) and connection hex bolts (7), first barrel (6) and connection hex bolts (7) fixed connection, the inner wall of first barrel (6) is provided with reverse screw thread (8), just first barrel (6) are through reverse screw thread (8) and screw rod (1) threaded connection.

3. The screw structure of a mining machine according to claim 1, wherein: the axial center of the screw (1) is provided with a jack (9), and a cross groove (10) is arranged in the screw (1).

4. The screw structure of a mining machine according to claim 3, wherein: the screw rod is characterized in that a first forward thread (11) is arranged inside the insertion hole (9), and the screw rod (1) is in threaded connection with the expansion rod (5) through the forward thread (11).

5. The screw structure of a mining machine according to claim 1, wherein: one end fixedly connected with connecting block (12) of expansion link (5), just the surface of connecting block (12) is provided with second forward screw thread (13).

6. The screw structure of a mining machine according to claim 5, wherein: connecting block (12) are through second forward screw thread (13) and connection hex bolts (7) threaded connection, just one side fixedly connected with hexagonal that expansion link (5) were kept away from in connecting block (12) is twisted piece (14).