CN219136823U

CN219136823U - Mosaic type feeding trolley bottom plate for fixed rock drill

Info

Publication number: CN219136823U
Application number: CN202320287133.6U
Authority: CN
Inventors: 王凤瓖; 程鹏; 韩武达; 李洪洲
Original assignee: Gansu Jiu Steel Group Hongxing Iron and Steel Co Ltd
Current assignee: Gansu Jiu Steel Group Hongxing Iron and Steel Co Ltd
Priority date: 2023-02-22
Filing date: 2023-02-22
Publication date: 2023-06-06
Anticipated expiration: 2033-02-22

Abstract

The utility model discloses an embedded feeding trolley bottom plate for a fixed rock drill, which comprises a bottom plate main body, wherein a square groove is formed in the bottom plate main body, and a rock drill mounting block is embedded in the square groove; one surface of the rock drill mounting block, which is in contact with the rock drill, is provided with a key slot, the other surface of the rock drill mounting block is provided with a bolt counter bore for mounting the rock drill, and a bolt hole corresponding to the position of the bolt counter bore is arranged in the square slot; the bottom plate main body, the rock drill mounting block and the rock drill are connected through bolts penetrating through the bolt holes and the bolt counter bores. The embedded feeding trolley bottom plate solves the problem that the feeding trolley is required to be replaced integrally when a rock drill fails; the bolt counter bore is adopted, so that the bolt is conveniently and quickly replaced after the fastening bolt of the rock drill is damaged, and the purpose that the feeding trolley of the rock drill runs on line for a long time is achieved; the embedded type feeding trolley bottom plate is close to the field use and overhaul practice, is convenient to detach and install, can prolong the service life of the feeding trolley, reduces overhaul time and reduces the loss of spare parts of the feeding trolley of the rock drill.

Description

Mosaic type feeding trolley bottom plate for fixed rock drill

Technical Field

The utility model belongs to the field of metallurgical equipment, and particularly relates to an embedded feeding trolley bottom plate for a fixed rock drill.

Background

The tapping machine is one of the very critical equipment in the production of the iron-making blast furnace, and has the function of opening a tapping channel at a certain angle according to the specified time so that molten iron smoothly flows out of the tapping channel and the purpose of tapping and deslagging is achieved. Therefore, the stability and tapping capacity of tapping machine equipment directly influence the yield and the process flow of the ironmaking blast furnace, and are important for the stable operation of the blast furnace.

The structure of the iron notch drill mainly comprises a rotation part and a drilling part, wherein the drilling part is used for feeding and punching a drill rod, the feeding is realized by a hydraulic motor through a chain transmission to a feeding trolley, and the punching is realized by a rock drill, so the rock drill is a key precise component of the iron notch drill. In the process of opening the iron notch, the rock drill is fixed on a bottom plate of the feeding trolley through six bolts, a wheel assembly of the feeding trolley is hung on a girder of the iron notch, the rock drill is used for punching and drilling in an environment with the height of Wen Fu and the piston seal and the rotary motor seal of the rock drill are damaged, so that the rock drill has no impact and rotates, a channel of the iron notch cannot be opened according to the specified time, and the single-field iron connection accident of the blast furnace directly affects the yield and the process flow of the iron-making blast furnace; in addition, when the iron notch is opened, the rock drill is in drilling action to generate vibration, so that a screw hole of the rock drill and a bolt are screwed and screwed to form sliding wires, the rock drill is loose, the coaxiality between the rock drill and a drill rod can not be ensured during drilling, and parts in the rock drill are damaged; under normal conditions, the online operation life of the rock drill is 6 to 9 months, and the feeding trolley is required to be replaced at the same time when the rock drill is in fault replacement, so that the spare part cost and the personnel labor cost are increased.

Disclosure of Invention

The utility model aims to solve the technical problem that the cost of spare parts and the labor cost of personnel are high as a whole because the whole feeding trolley needs to be replaced when the rock drill is in fault replacement, and provides an embedded feeding trolley bottom plate for a fixed rock drill.

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

the embedded feeding trolley bottom plate for the fixed rock drill comprises a bottom plate main body, wherein a square groove is formed in the bottom plate main body, and a rock drill mounting block is embedded in the square groove; one surface of the rock drill mounting block, which is in contact with the rock drill, is provided with a key slot, and the other surface of the rock drill mounting block is provided with a bolt counter bore matched with the mounting size of the rock drill; a bolt hole corresponding to the position of the bolt counter bore is formed in the groove above the bottom plate main body; the bottom plate main body, the rock drill mounting block and the rock drill are connected through bolts penetrating through the bolt holes and the bolt counter bores; the rock drill mounting block is also connected with the rock drill through a key penetrating into the key groove.

Further, the rock drill mounting block is provided with a protruding block, and the square groove is internally provided with a groove matched with the protruding block.

Further, the number of the convex blocks and the grooves is 4.

Further, the number of the bolt counter bores and the number of the bolt holes are 6.

Compared with the existing feeding trolley bottom plate, the embedded feeding trolley bottom plate has the following beneficial effects:

after the embedded type feeding trolley bottom plate is adopted, the problem that the feeding trolley is required to be replaced integrally due to the fault of the rock drill is solved; the original M24 bolt hole is changed into an M24 bolt counter bore, vibration in the running process of the rock drill can be relieved through the bolt counter bore, and the rock drill fastening bolt is convenient and quick to replace after being damaged, so that the purpose that the feeding trolley of the rock drill runs on line for a long time is realized; the shearing force generated by vibration of the rock drill during operation is reduced through the matching of the key and the key groove, and the reliable and effective bolt pretightening force is ensured; the embedded type feeding trolley bottom plate is close to the field use and overhaul practice, is convenient to detach and install, can prolong the service life of the feeding trolley, reduces overhaul time and reduces the loss of spare parts of the feeding trolley of the rock drill.

Drawings

FIG. 1 is a schematic diagram of an assembled structure of a bottom plate of a mosaic feed cart according to the present utility model;

FIG. 2 is a top view of FIG. 1;

fig. 3 is a schematic view of the construction of the rock drill mounting block of the present utility model;

FIG. 4 is a top view of FIG. 3;

fig. 5 is a schematic structural view of the main body 1 of the base plate according to the present utility model;

FIG. 6 is a top view of FIG. 5;

reference numerals: 1. A base plate main body; 2. a square groove; 3. A rock drill mounting block; 4. a bolt countersink; 5. a key slot; 6. bolt holes; 7. a bump; 8. a groove.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

Referring to fig. 1-6, the embedded feeding trolley base plate for the fixed rock drill provided by the utility model comprises a base plate main body 1, wherein a square groove 2 is arranged on the base plate main body 1, and a rock drill mounting block 3 is embedded in the square groove 2; one surface of the rock drill mounting block 3, which is in contact with the rock drill, is provided with a key slot 5, and the other surface of the rock drill mounting block is provided with 6 bolt counter bores 4 matched with the mounting size of the rock drill; a bolt hole 6 corresponding to the position of the bolt counter bore 4 is formed in the groove 2 above the bottom plate main body 1, and the bottom plate main body 1, the rock drill mounting block 3 and the rock drill are connected through bolts penetrating through the bolt hole 6 and the bolt counter bore 4; the rock drill mounting block 3 is also connected with the rock drill by means of a key penetrating into the key slot 5.

The four sides of the rock drill mounting block 3 are also provided with 4 convex blocks 7 which are symmetrical in pairs, and grooves 8 corresponding to the convex blocks 7 are arranged in the square groove 2.

In the concrete implementation, a 45# steel is adopted to process 575mm multiplied by 320mm multiplied by 30mm rock drill mounting blocks 3, bumps 7 are processed on the periphery, 6M 24 bolt counter bores 4 are processed on the rock drill mounting blocks 3 according to the installation size of the rock drill, key grooves 5 with the length of 250mm, the width of 40mm and the depth of 12mm are processed on the reverse side according to the key groove positions of a rock drill body, the key grooves 2 with the length of 575mm multiplied by 320mm multiplied by 30mm are processed on the bottom plate main body 1 according to the installation positions after the processing of the rock drill mounting blocks 3 is completed, 6 bolt holes 6 corresponding to the positions of the bolt counter bores 4 and grooves 8 corresponding to the positions of the bumps 7 are formed in the square grooves 2, then the processed rock drill mounting blocks 3 are inlaid in the square grooves 2, after the alignment, the M24 multiplied by 160 bolts penetrate the bolt holes 6 and the bolts 4, the rock drill mounting blocks 3 and the bottom plate main body 1 are connected, the key grooves are installed in the key grooves 5, and then the rock drill is fastened to a large-size girder through the M24 nuts, and the opening of the rock drill is fed back to the large-bridge. When the rock drill is required to be replaced, the M24 nut and the M24 multiplied by 160 bolt are loosened, the rock drill is taken down, and the bolt is replaced after the M24 multiplied by 160 bolt is damaged.

The embedded type feeding trolley bottom plate is close to the field use and overhaul practice, is convenient to detach and install, can prolong the service life of the feeding trolley, reduces overhaul time and reduces the loss of spare parts of the feeding trolley of the rock drill.

Claims

1. The embedded feeding trolley bottom plate for the fixed rock drill comprises a bottom plate main body (1) and is characterized in that a square groove (2) is formed in the bottom plate main body (1), and a rock drill mounting block (3) is embedded in the square groove (2); one surface of the rock drill mounting block (3) which is in contact with the rock drill is provided with a key slot (5), and the other surface is provided with a bolt counter bore (4) which is matched with the mounting size of the rock drill; a bolt hole (6) corresponding to the position of the bolt counter bore (4) is arranged in the groove (2) above the bottom plate main body (1); the bottom plate main body (1), the rock drill mounting block (3) and the rock drill are connected through bolts penetrating through the bolt holes (6) and the bolt counter bores (4); the rock drill mounting block (3) is connected with the rock drill through a key penetrating into the key groove (5).

2. The embedded feeding trolley bottom plate for the fixed rock drill according to claim 1, wherein the rock drill mounting block (3) is provided with a convex block (7), and the square groove (2) is internally provided with a groove (8) matched with the convex block.

3. A pan feeding trolley floor for a fixed rock drill according to claim 2, characterized in that the number of projections (7) and recesses (8) is 4.

4. A fixed rock drill mosaic feed trolley floor according to any one of claims 1-3, c h a r a c t e r i z e d in that the number of bolt countersinks (4) and bolt holes (6) is 6.