CN-224225178-U - Track frame of mining development machine

Abstract

The utility model provides a track frame of a mining heading machine, which relates to the technical field of track frames and comprises a frame body and a track body, wherein driving wheels are rotatably connected inside two ends of the frame body, supporting wheels are uniformly rotatably connected on two sides of the frame body, an empty slot is formed in the top of the frame body in a penetrating manner, a tensioning mechanism is arranged inside the empty slot, the tensioning mechanism comprises a U-shaped frame, and a tensioning roller is rotatably connected inside the U-shaped frame. According to the utility model, the automatic tensioning adjustment of the crawler body is realized through the tensioning mechanism, when the crawler body is loose, the elastic restoring force of the tensioning spring pushes the connecting plate, the U-shaped frame and the tensioning roller to act, so that the tension of the crawler body is increased, when the crawler body is too tight, the tensioning spring is stressed, contracted and absorbed to act force, the overtightening state is relieved, the dynamic adjustment can enable the crawler body to always maintain proper tension, vibration and noise during walking are greatly reduced, and the running stability of the heading machine is improved.

Inventors

• ZHANG WEI

Assignees

• 平遥县恒华机电有限公司

Dates

Publication Date

20260512

Application Date

20250730

Claims (5)

1. 1. The track frame of the mining heading machine comprises a frame body (1) and a track body (2) and is characterized in that driving wheels (3) are rotatably connected inside two ends of the frame body (1), supporting wheels (4) are uniformly rotatably connected to two sides of the frame body (1), a hollow groove (5) is formed in the top of the frame body (1) in a penetrating mode, and a tensioning mechanism (6) is installed inside the hollow groove (5); the tensioning mechanism (6) comprises a U-shaped frame (601), tensioning rollers (602) are rotatably connected in the U-shaped frame (601), connecting plates (603) are fixedly arranged on two sides of the U-shaped frame (601), round rods (604) are symmetrically and slidingly connected in the connecting plates (603), fixing plates (605) are fixedly arranged at the top ends and the bottom ends of the round rods (604), and tensioning springs (606) are sleeved on the outer walls of the round rods (604).
2. 2. The track frame for a mining tunneling machine according to claim 1, wherein the driving wheel (3) is meshed with the track body (2), and the supporting wheel (4) is rotatably connected with the track body (2).
3. 3. The track frame for the mining development machine, as set forth in claim 1, characterized in that the number of the fixing plates (605) is four, the four fixing plates (605) are positioned at two sides of the interior of the empty slot (5), and the four fixing plates (605) are fixedly connected with the frame body (1).
4. 4. The track frame for a mining tunneller as set forth in claim 1, wherein said tension roller (602) is rotatably connected to said track body (2).
5. 5. The track frame for a mining tunneling machine according to claim 1, wherein one end of said tension spring (606) is fixedly connected to a fixing plate (605), and the other end of said tension spring (606) is fixedly connected to a connecting plate (603).

Description

Track frame of mining development machine Technical Field The utility model relates to the technical field of track frames, in particular to a track frame of a mining heading machine. Background In the field of mining resource exploitation, a mining heading machine is used as key equipment for realizing tunnel excavation and propulsion, the working environment is extremely severe, challenges of high dust and high humidity are faced, and continuous operation is required on uneven tunnel bottom plates even with larger gradients. The crawler-type travelling structure has the advantages of small ground specific pressure, large traction force, strong climbing capacity and the like, and becomes the main stream selection of the travelling system of the mining development machine. The track frame is used as a core bearing and connecting part of a track type running structure, and the performance of the track frame directly influences the running stability, the working efficiency and the service life of equipment of the heading machine. In the long-term use process of the track frame of the traditional mining development machine, as the track body continuously runs under the drive of the driving wheel and frequently rubs and extrudes with the supporting wheel, the phenomenon of loosening of the track is easy to occur, once the track loosens, the track can not only generate severe vibration and noise when the development machine walks, the stable operation of equipment is affected, the abrasion between the track and the driving wheel and the supporting wheel can be aggravated, the service life of the track is shortened, even safety accidents are caused due to the falling of the track, the normal operation of the development machine is seriously restricted, and therefore, the development is needed. Disclosure of utility model The utility model aims to solve the problems in the background art, and provides a track frame of a mining heading machine. In order to achieve the purpose, the track frame of the mining heading machine comprises a frame body and a track body, wherein driving wheels are rotatably connected inside two ends of the frame body, supporting wheels are uniformly rotatably connected to two sides of the frame body, empty slots are formed in the tops of the frame body in a penetrating mode, tensioning mechanisms are installed inside the empty slots and comprise U-shaped frames, tensioning rollers are rotatably connected inside the U-shaped frames, connecting plates are fixedly installed on two sides of the U-shaped frames, round rods are symmetrically and slidably connected inside the connecting plates, fixing plates are fixedly installed at the top ends and the bottom ends of the round rods, and tensioning springs are sleeved on the outer walls of the round rods. Preferably, the driving wheel is meshed with the crawler body, and the supporting wheel is rotationally connected with the crawler body. Preferably, the number of the fixing plates is four, the four fixing plates are located at two sides of the interior of the empty slot, and the four fixing plates are fixedly connected with the frame body. Preferably, the tensioning roller is rotationally connected with the crawler body. Preferably, one end of the tensioning spring is fixedly connected with the fixing plate, and the other end of the tensioning spring is fixedly connected with the connecting plate. Compared with the prior art, the utility model has the advantages and positive effects that, According to the utility model, automatic tensioning adjustment of the crawler body is realized through the tensioning mechanism, when the crawler body is loose, the elastic restoring force of the tensioning spring pushes the connecting plate, the U-shaped frame and the tensioning roller to act, so that the tension degree of the crawler body is increased, when the crawler body is overtightened, the tensioning spring is stressed and contracted to absorb acting force, the overtightening state is relieved, the dynamic adjustment can enable the crawler body to always keep proper tension degree, vibration and noise during walking are greatly reduced, the running stability of the development machine is improved, meanwhile, the situation that the service life is shortened due to the fact that the traditional crawler is seriously worn out by the transmission wheel and the supporting wheel due to loosening is solved, the transmission wheel and the tensioning roller are rotationally connected with the crawler body in the machine frame, and the stable tensioning action of the tensioning mechanism is matched, so that the contact between the crawler body and each part is more uniform in the running process, the stress is more reasonable, the unnecessary friction and extrusion are reduced, and the wear speed of the crawler body and the related parts is reduced, and the service life of the crawler body is effectively prolonged. Drawings FIG. 1 is a schematic diagram of the ov