CN218908686U

CN218908686U - Machine head telescoping device of reversed loader

Info

Publication number: CN218908686U
Application number: CN202222810990.8U
Authority: CN
Inventors: 缪亚峰; 袁文飞
Original assignee: Gansu Ronghe Group Of Coal Mine Machinery Co ltd
Current assignee: Gansu Ronghe Group Of Coal Mine Machinery Co ltd
Priority date: 2022-10-25
Filing date: 2022-10-25
Publication date: 2023-04-25
Anticipated expiration: 2032-10-25

Abstract

The utility model relates to a reversed loader head telescoping device, which is characterized in that: the connector (3) is fixed on the side face of the side plate (2) of the headstock (1), the front end of the jack (5) is fixed with the connector (3) through a pin shaft B (7), and the rear end of the jack (5) is fixed on the lug plate of the telescopic groove (9) through a pin shaft A (6). The connector replaces the assembly of the support and the bracket, the connector is arranged on the side surface and is not limited by space, the strength and the precision are ensured by key positioning, and the service life is long; the operation is simple, time-saving and labor-saving.

Description

Machine head telescoping device of reversed loader

Technical Field

The utility model belongs to the technical field of coal mine mechanical equipment, and particularly relates to a reversed loader head telescoping device.

Background

In the prior art, a machine head telescoping device of a reversed loader is mainly characterized in that a positioning pin hole and a bolt hole are machined in the side plate of a machine head frame along the length direction, a round nut mounting hole is machined in the thickness direction, when the reversed loader is installed, the pin hole on a support is aligned with the pin hole on the side plate of the machine head frame and then is installed into a positioning pin for positioning, and then the support is fastened on the side plate of the machine head frame by a bolt component; one end of the bracket is connected with the support by a bolt component, and the other end of the bracket is connected with the jack by a pin shaft; because the scraper chain of the transfer conveyor is lengthened due to stretching and abrasion of the chain wheel after running for a period of time, the telescopic device is required to be frequently adjusted, and the pin holes and the bolt holes on the side plates are deformed due to unbalanced stress in the running process; meanwhile, the support and the support are assembly welding pieces, and are limited by space, so that the support and the support cannot be too large and are easy to damage. The underground replacement is time-consuming and labor-consuming, the production efficiency is seriously affected, and the production cost is increased.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides a scraper conveyor head telescopic device, so that the problems in the prior art are effectively solved.

The technical scheme adopted by the utility model is as follows: the utility model provides a reversed loader aircraft nose telescoping device which characterized in that: the connector is fixed on the side face of the side plate of the headstock, the front end of the jack is fixed with the connector through a pin shaft B, and the rear end of the jack is fixed on the lug plate of the expansion groove through a pin shaft A.

The connector is a one-step processing forming piece, a protruding key is arranged on the upper edge of the connector, a groove is formed in one side of the connector, threaded holes are formed in four corners of the connector, and a pin hole is formed in the middle of the connector; the side plate is provided with key grooves, threaded holes and pin holes corresponding to the protruding keys, the threaded holes and the pin holes; the convex key is arranged on the key groove of the side plate, and the connector is fixed on the headstock through the threaded hole by using the bolt component; and a piston rod of the jack is installed in the groove and is fixedly connected through a pin shaft B through a pin hole.

And one end of the pin shaft B is provided with a slot along the shaft diameter direction, and the clamping plate is inserted into the slot to fixedly connect the jack with the pin shaft B, so that the pin shaft B is prevented from falling out, and is fixed on the connecting head by bolts.

The beneficial effects of the utility model are as follows: the connector replaces the assembly of the support and the bracket, the connector is arranged on the side surface and is not limited by space, the strength and the precision are ensured by key positioning, and the service life is long; the operation is simple, time-saving and labor-saving.

Drawings

FIG. 1 is a schematic diagram of the present utility model;

FIG. 2 is a schematic view of the present utility model in use;

FIG. 3 is a diagram of the structure of the connector of the present utility model;

in the figure: the device comprises a 1-headstock, a 2-side plate, a 3-connector, a 31-protruding key, a 32-groove, a 33-threaded hole, a 34-pin hole, a 4-clamping plate, a 5-jack, a 6-pin A, a 7-pin B, an 8-bolt assembly, a 9-expansion groove, a 10-guide plate and a 11-guide groove.

Detailed Description

See fig. 1, 3, a reversed loader head telescoping device, its characterized in that: the connector 3 is fixed on the side face of the side plate 2 of the headstock 1, the front end of the jack 5 is fixed with the connector 3 through a pin shaft B7, and the rear end of the jack 5 is fixed on an ear plate of the expansion groove 9 through a pin shaft A6.

The connector 3 is a one-step processing forming piece, a protruding key 31 is arranged on the connector 3, a groove 32 is formed in one side of the connector, threaded holes 33 are formed in four corners of the connector, and a pin hole 34 is formed in the middle of the connector; the side plate 2 is provided with key grooves, threaded holes and pin holes corresponding to the protruding keys 31, the threaded holes 33 and the pin holes 34; the protruding key 31 is arranged on the key groove of the side plate 2, and the connector 3 is fixed on the headstock 1 through the threaded hole 33 by the bolt assembly 8; the piston rod of the jack 5 is installed in the groove 32 and is fixedly connected through the pin hole 34 by the pin shaft B7.

One end of the pin shaft B7 is provided with a slot along the shaft diameter direction, the clamping plate 4 is inserted into the slot to fixedly connect the jack 5 with the pin shaft B7, the pin shaft B7 is prevented from falling out, and the clamping plate 4 is fixed on the connector 3 by bolts.

The working process comprises the following steps: the utility model is symmetrically arranged at two sides of the reversed loader head, as shown in fig. 1, the machine head 1 and the telescopic groove 9 can move relatively because the guide plates 10 at two sides of the machine head 1 are arranged in the guide grooves 11 at two sides of the telescopic groove 9. When the scraper chain of the transfer conveyor runs for a period of time, the chain becomes loose and needs to be re-tightened due to the fact that the stretching becomes long and the chain wheel is worn. At this time, the piston rods of the jacks 5 on the two sides of the machine head transmission part synchronously extend, and after the machine head frame 1 and the telescopic groove 9 are pulled out by a proper distance, the chain is fastened, as shown in fig. 2.

Claims

1. The utility model provides a reversed loader aircraft nose telescoping device which characterized in that: the connector (3) is fixed on the side face of the side plate (2) of the headstock (1), the front end of the jack (5) is fixed with the connector (3) through a pin shaft B (7), and the rear end of the jack (5) is fixed on the lug plate of the telescopic groove (9) through a pin shaft A (6).

2. A reversed loader head telescoping device as defined in claim 1, wherein: the connector (3) is a one-step processing forming piece, a protruding key (31) is arranged on the connector (3), a groove (32) is formed in one side of the connector, threaded holes (33) are formed in four corners of the connector, and a pin hole (34) is formed in the middle of the connector; the side plate (2) is provided with a key groove, a threaded hole and a pin hole which correspond to the protruding key (31), the threaded hole (33) and the pin hole (34); the protruding key (31) is arranged on a key groove of the side plate (2), and the connector (3) is fixed on the machine head frame (1) through a threaded hole (33) by using the bolt component (8); the piston rod of the jack (5) is installed in the groove (32) and is fixedly connected through the pin shaft B (7) through the pin hole (34).

3. A reversed loader head retraction device according to claim 1 or 2, wherein: one end of the pin shaft B (7) is provided with a slot along the shaft diameter direction, the clamping plate (4) is inserted into the slot to fixedly connect the jack (5) with the pin shaft B (7), and the clamping plate (4) is fixed on the connector (3) by bolts.