CN213393483U

CN213393483U - Rolling mill gear box pressure regulating device

Info

Publication number: CN213393483U
Application number: CN202022413581.5U
Authority: CN
Inventors: 尹宣武
Original assignee: Nanjing Huida Machinery Equipment Co ltd
Current assignee: Nanjing Huida Machinery Equipment Co ltd
Priority date: 2020-10-26
Filing date: 2020-10-26
Publication date: 2021-06-08
Anticipated expiration: 2030-10-26

Abstract

The utility model provides a rolling mill gear box pressure adjusting device, which comprises an adjusting mechanism, a sleeve and a piston rod, wherein the adjusting mechanism is arranged on a gear box, the adjusting mechanism comprises a shell and a piston rod, a first baffle is arranged in the shell, hydraulic oil is stored above the first baffle, two oil pipes are arranged on the first baffle, the sleeve is arranged at the bottom end of the first baffle and is positioned between the two oil pipes, a second baffle is arranged on the outer wall of the sleeve, the other ends of the oil pipes are arranged on the second baffle, the piston rod is arranged in the sleeve, a first spring is arranged at the top end of the piston rod, the other end of the first spring is arranged in an inner cavity of the sleeve, a convex block is arranged at the bottom end of the piston rod, second springs are arranged at two sides of the convex block, and the other end of the second spring is, the shell bottom is equipped with the oil-out, oil outlet pipe is installed to oil-out one side.

Description

Rolling mill gear box pressure regulating device

Technical Field

The utility model belongs to the technical field of the rolling mill gear box, concretely relates to rolling mill gear box pressure regulating device.

Background

The rolling mill is a device for realizing the metal rolling process, the rolling mill gear box is an important device in the transmission device of the rolling mill, and the functions of the rolling mill gear box are mainly two: firstly, the low torque of the motor is increased to the high rolling torque required by the rolling mill during steel rolling according to a certain proportion, and the other is that the rotating speed of the motor is converted into the rolling speed required by the rolling mill during steel rolling through a certain rotating speed ratio so as to meet the requirements of a steel rolling process, so whether the rolling mill can normally run or not is directly influenced by the running state of a gear box of the rolling mill; the oil pressure in the gear box of the rolling mill is abnormal, and the bearings of the gear box are abraded to cause the noise vibration when the rolling mill vibrates, so that an oil pressure adjusting device is arranged in the gear box to keep a lubricating oil path smooth, lubricating oil is filled in a sufficient amount at regular intervals, and the rolling surface of the roller and the sliding surface of the roller and the flange are ensured; the sealing performance of the bearing is ensured, so that water and iron oxide scales are prevented from entering the bearing, and the lubricant of the rolling mill is prevented from leaking.

In the prior art, lubricating oil needs manual work to add regularly, and the manual work adds the in-process, has water or dust to get into the bearing, reduces life, and manual work is changed or is added lubricating oil, waste time and inefficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems existing in the prior art, the utility model provides a rolling mill gear box pressure regulating device improves efficiency, saves the cost, improves life.

The utility model provides a following technical scheme:

a pressure adjusting device for a rolling mill gearbox comprises an adjusting mechanism, a sleeve and a piston rod, wherein the adjusting mechanism is installed on the gearbox and comprises a shell and a piston rod, a first baffle is installed in the shell, hydraulic oil is stored above the first baffle, two oil pipes are installed on the first baffle, the sleeve is installed at the bottom end of the first baffle and is positioned between the two oil pipes, a second baffle is installed on the outer wall of the sleeve, the other ends of the oil pipes are installed on the second baffle, the piston rod is installed in the sleeve, a first spring is installed at the top end of the piston rod, the other end of the first spring is installed in an inner cavity of the sleeve, a protruding block is installed at the bottom end of the piston rod, second springs are installed on two sides of the protruding block, the other end of the second spring is installed in the inner cavity of the shell, an oil outlet, an oil outlet pipe is installed on one side of the oil outlet.

Further, an oil inlet hole is formed in the shell, and a sleeve cap is installed on the oil inlet hole.

Furthermore, install the oil pointer on the hydraulic oil, the one end of oil pointer passes the shell top surface, just be equipped with the scale mark on the oil pointer.

Further, the diameter of the bottom end of the piston rod is larger than that of the top end of the piston rod, the diameter of the convex block on the piston rod is smaller than that of the oil outlet, and the convex block is provided with a rubber pad.

Further, the oil outlet pipe penetrates through the shell, one end, close to the oil outlet, of the oil outlet pipe is open, and a plurality of small oil ports are formed in the oil outlet pipe.

Further, install the connecting block on the shell, the sealing washer is installed to connecting block and shell junction, be equipped with the mounting hole on the connecting block.

The utility model has the advantages that: the adjusting mechanism is arranged on the gear box, an oil outlet is formed in the bottom end of the shell, and the pressure in the gear box is used for controlling the piston rod so as to control the oil pressure; lubricating oil required by the operation of the gear box is automatically supplemented, manual regular inspection is not needed, and scale marks on the oil pointer are convenient for operators to clearly observe the oil quantity in the gear box; utilize the elastic force control oil pressure of spring, be equipped with the mounting hole on the connecting block, the adjustment mechanism's of being convenient for installation need not to open the gear box and trades oil, can avoid dust etc. to get into the gear box, further improves life.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic front view of the present invention;

fig. 2 is a schematic sectional structure diagram of the present invention.

Labeled as: 1. an oil outlet pipe; 2. a housing; 3. mounting holes; 4. connecting blocks; 5. an oil pipe; 6. a first baffle plate; 7. hydraulic oil; 8. sleeving a cap; 9. an oil inlet hole; 10. scale lines; 11. oil marks; 12. an adjustment mechanism; 13. a first spring; 14. a cavity; 15. a sleeve; 16. a seal ring; 17. a second baffle; 18. a second spring; 19. an oil outlet; 20. a raised block; 21. a piston rod; 22. a gear case; 23. and (7) a rubber pad.

Detailed Description

As shown in fig. 1 and 2, a rolling mill gearbox pressure adjusting device, including adjustment mechanism 12, sleeve 15 and piston rod 21, adjustment mechanism 12 installs on gear box 22, adjustment mechanism 12 includes shell 2 and piston rod 21, be equipped with inlet port 9 on the shell 2, install the cover cap 8 on the inlet port 9, when the oil content is not enough in gear box 22, open cover cap 8, supply lubricating oil through inlet port 9, avoid taking whole gear box 22 apart and change lubricating oil, effectively prevent dust or for other piece entering gear box 22 in, and then improved gear box 22's life.

A first baffle 6 is installed in the shell 2, hydraulic oil 7 is stored above the first baffle 6, two oil pipes 5 are installed on the first baffle 6, a sleeve 15 is installed at the bottom end of the first baffle 6, the sleeve 15 is located between the two oil pipes 5, a second baffle 17 is installed on the outer wall of the sleeve 15, the other end of each oil pipe 5 is installed on the second baffle 17, and the hydraulic oil 7 above the first baffle 6 enters the position below the second baffle 17 through the oil pipes 5, so that the structure of the pressure adjusting mechanism 12 is more compact; a piston rod 21 is arranged in the sleeve 15, a first spring 13 is arranged at the top end of the piston rod 21, the other end of the first spring 13 is arranged in the inner cavity of the sleeve 15, a cavity 14 is arranged above the piston rod 21, a convex block 20 is arranged at the bottom end of the piston rod 21, second springs 18 are arranged on two sides of the convex block 20, the other end of the second spring 18 is arranged in the inner cavity of the shell 2, an oil outlet 19 is arranged at the bottom end of the shell 2, an oil outlet pipe 1 is arranged on one side of the oil outlet 19, when the pressure in the gear box 22 is greater than the pressure in the pressure adjusting mechanism 12, the piston rod 21 is jacked up by the pressure in the gear box 22, the second springs 18 stretch and the first springs 13 retract, so that the convex block 20 is separated from the oil outlet 19, lubricating oil flows into the gear box 22, when the pressure in the adjusting mechanism 12 is high, the first springs 13 and, thereby regulating the pressure of the lubricating oil.

An oil pointer 11 is installed on the hydraulic oil 7, one end of the oil pointer 11 penetrates through the top surface of the shell 2, scale marks 10 are arranged on the oil pointer 11, the oil pointer 11 can float when lubricating oil in an adjusting mechanism 13 is sufficient, and the oil pointer 11 can descend if the lubricating oil in the adjusting mechanism 12 is insufficient, so that an operator can conveniently observe the oil amount of the lubricating oil in the adjusting mechanism 12 at any time; piston rod 21 bottom diameter is greater than piston rod 21 top diameter, and the diameter of protruding piece 20 on piston rod 21 is less than the diameter of oil-out 19, installs rubber pad 23 on the protruding piece 20, and big thing of gear box 22 internal pressure, pressure jack-up protruding piece 20, the lubricating oil of being convenient for flows out from oil-out 19, if gear box 22 internal pressure is little, oil-out 19 is then blockked up to protruding piece 20, and protruding piece department sets up rubber pad 23, prevents that lubricating oil from oil-out 19 from flowing out.

The oil outlet pipe 1 penetrates through the shell 2, one end, close to the oil outlet 19, of the oil outlet pipe 1 is opened, a plurality of small oil ports are formed in the oil outlet pipe 1, when the oil outlet 19 is opened, one part of lubricating oil directly flows into the gear box 22 from the oil outlet 19, and the other part of lubricating oil flows into the gear box 22 through the small oil ports in the oil outlet pipe 1; install connecting block 4 on the shell 2, sealing washer 16 is installed to connecting block 4 and shell 2 junction, prevents that the gas or the lubricating oil in the adjustment mechanism 12 from leaking, is equipped with mounting hole 3 on the connecting block 4, and the adjustment mechanism 12 of being convenient for is installed on gear box 22.

When the utility model is used, firstly, the adjusting mechanism 12 is installed on the gear box 22 through the installation hole 3 on the connecting block 4 on the adjusting mechanism 12, the sleeve cap 8 is opened, the lubricating oil is injected into the adjusting mechanism 12 until the lowest value of the scale mark 10 on the oil pointer 11 is exposed out of the shell 2, the sleeve cap 8 is covered, the hydraulic oil flows into the lower part of the second baffle plate 17 through the oil pipe 5, and the oil outlet 19 is in a blocking state at the moment; through the pressure in the gear box 22 and the change of the pressure in the adjustment mechanism 12, change the size of oil-out 19, thereby adjust the pressure of hydraulic oil in the gear box, after gear box 22 operation a period, the pressure increase in the gear box 22, with in piston rod 21 pressurized withdrawal sleeve 15, partly hydraulic oil flows into gear box 22 through oil-out 19, another part hydraulic oil flows into gear box 22 through the little hydraulic fluid port on the play oil pipe 1 in, thereby reach the even use of lubricating oil in the gear box 22, operating personnel carries out the replenishment of lubricating oil through observing scale mark 12 on the oil pointer 11, and then raise the efficiency.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a rolling mill gear box pressure adjusting device, includes adjustment mechanism (12), sleeve (15) and piston rod (21), its characterized in that, adjustment mechanism (12) are installed on gear box (22), adjustment mechanism (12) include shell (2) and piston rod (21), install first baffle (6) in shell (2), hydraulic oil (7) are stored to shown first baffle (6) top, install two oil pipe (5) on first baffle (6), sleeve (15) are installed to first baffle (6) bottom, just sleeve (15) are located between two oil pipe (5), second baffle (17) are installed to sleeve (15) outer wall, the other end of oil pipe (5) is installed on second baffle (17), install piston rod (21) in sleeve (15), first spring (13) are installed on the top of piston rod (21), the other end of first spring (13) is installed in sleeve (15) inner chamber, protruding piece (20) are installed to piston rod (21) bottom, second spring (18) are installed to the both sides of protruding piece (20), the other end of second spring (18) is installed in shell (2) inner chamber, shell (2) bottom is equipped with oil-out (19), oil pipe (1) are installed to oil-out (19) one side.

2. The rolling mill gearbox pressure regulating device according to claim 1, characterized in that the housing (2) is provided with an oil inlet hole (9), and a sleeve cap (8) is mounted on the oil inlet hole (9).

3. The rolling mill gearbox pressure regulating device according to claim 1, characterized in that an oil pointer (11) is installed on the hydraulic oil (7), one end of the oil pointer (11) penetrates through the top surface of the housing (2), and the oil pointer (11) is provided with scale marks (10).

4. The rolling mill gearbox pressure regulating device according to claim 1, characterized in that the diameter of the bottom end of the piston rod (21) is larger than the diameter of the top end of the piston rod (21), the diameter of the protruding block (20) on the piston rod (21) is smaller than the diameter of the oil outlet (19), and a rubber pad (23) is mounted on the protruding block (20).

5. The rolling mill gearbox pressure regulating device according to claim 1, characterized in that the oil outlet pipe (1) passes through the housing (2), one end of the oil outlet pipe (1) near the oil outlet (19) is open, and a plurality of small oil ports are arranged on the oil outlet pipe (1).

6. The rolling mill gearbox pressure regulating device according to claim 1, characterized in that a connecting block (4) is mounted on the housing (2), a sealing ring (16) is mounted at the joint of the connecting block (4) and the housing (2), and a mounting hole (3) is formed in the connecting block (4).