CN216951085U

CN216951085U - Multipurpose hydraulic mechanical buffer device for steel rolling mill

Info

Publication number: CN216951085U
Application number: CN202123319759.0U
Authority: CN
Inventors: 朱永新
Original assignee: Shandong Iron and Steel Co Ltd
Current assignee: Shandong Iron and Steel Co Ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-07-12
Anticipated expiration: 2031-12-28

Abstract

The utility model relates to a multi-purpose hydraulic mechanical buffer device for a steel rolling mill, which comprises a hydraulic cylinder, a hydraulic rod extending into the hydraulic cylinder and a fixed plate fixedly connected at the outer end of the hydraulic rod, wherein a piston block I and a piston block II are arranged in the hydraulic cylinder; the hydraulic buffer device effectively solves the problem that most hydraulic buffer devices rely on hydraulic pressure for buffering and have poor buffering effect.

Description

Multipurpose hydraulic mechanical buffer device for steel rolling mill

Technical Field

The utility model relates to the field of buffer devices, in particular to a multi-purpose hydraulic mechanical buffer device for a steel rolling mill.

Background

A rolling mill is a place where steel rolling production is performed. The steel rolling production is a production link for rolling steel ingots or steel billets into steel products. The section shapes of steel products produced in a steel rolling workshop are mainly divided into three major categories, namely steel plates, steel pipes and section steel (including wire rods). The mechanical equipment adopted by the steel rolling mill comprises a plurality of units consisting of a rolling mill and a series of auxiliary equipment. Machines that plastically deform the product are commonly referred to as rolling mills. Rolling mills can be classified into cogging mills, section mills, strip mills, tube mills, and the like according to their uses.

At present, the device of steel mill production steel need use hydraulic buffer to cushion when producing, but current hydraulic buffer mostly all is the simple hydraulic pressure that relies on and cushions for buffering effect is not good.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the multi-purpose hydraulic mechanical buffer device for the steel rolling mill, which realizes the buffer effect through multi-stage buffering.

The utility model is realized by the following technical scheme, and provides a multi-purpose hydraulic mechanical buffer device for a steel rolling mill, which comprises a hydraulic cylinder, a hydraulic rod extending into the hydraulic cylinder and a fixed plate fixedly connected at the outer end of the hydraulic rod, wherein a piston block I and a piston block II are arranged in the hydraulic cylinder, one side of the piston block I, which is far away from the piston block II, is fixedly connected with the inner end of the hydraulic rod, one side of the piston block II, which is far away from the piston block I, forms a closed buffer cavity with the hydraulic cylinder, a spring is arranged between the fixed plate and the hydraulic cylinder, and a secondary buffer mechanism is arranged between the piston block I and the piston block II.

This scheme intermediate fixed plate is installed on equipment, and the pneumatic cylinder plays the effect of buffering, is equipped with the spring between fixed plate and the pneumatic cylinder, and the spring plays the effect of one-level buffering, is equipped with second grade buffer gear between piston piece one and the piston piece two, plays the effect of second grade buffering, and piston piece two keep away from one side of piston piece one and pneumatic cylinder constitution inclosed cushion chamber, can fill liquid or gas in the cushion chamber, plays the effect of tertiary buffering.

As optimizing, second grade buffer gear includes that the rigid coupling is at two locating piece of piston piece two and the fixed block of rigid coupling on piston piece one, still includes two at least connecting blocks of arranging between fixed block and locating piece two along pneumatic cylinder circumference, the connecting block passes through connecting rod one to be connected with the fixed block, the connecting block passes through connecting rod two to be connected with locating piece two, the one end of connecting rod one is articulated with the connecting block, and the other end of connecting rod one is articulated with the fixed block, the one end of connecting rod two is articulated with the connecting block, and the other end of connecting rod two is articulated with locating piece two, one side rigid coupling that the connecting block is close to the pneumatic cylinder inner wall has the rubber arc board. When the piston block in this scheme moved to two directions of piston block, the two distance diminishes to outwards promote the connecting block, compress tightly on the inner wall of pneumatic cylinder through the rubber arc board, the compression of rubber arc board plays the cushioning effect, and the rubber arc board removes simultaneously and can play the cushioning effect through frictional force on the inner wall.

As optimization, one side of the connecting block, which is close to the inner wall of the hydraulic cylinder, is fixedly connected with a top plate, and the rubber arc plate is fixedly connected on the top plate. The top plate arranged in the scheme is convenient for mounting the rubber arc plate.

As optimization, the connecting blocks are provided with two, a telescopic mechanism is connected between the two connecting blocks, the telescopic mechanism comprises a first telescopic rod and a second telescopic rod, a telescopic cavity for accommodating the second telescopic rod is formed in the first telescopic rod, and a bottom plate which is slidably connected in the telescopic cavity is fixedly connected to the end portion of the second telescopic rod. Telescopic machanism in this scheme includes telescopic link one and telescopic link two to play limiting displacement to the connecting block, prevent that the connecting block from rotating.

Preferably, a plurality of limiting rods are fixedly connected between the fixing plate and the first piston block, and limiting rod sliding holes matched with the limiting rods are formed in the hydraulic cylinder. The limiting rod in the scheme plays a guiding role.

Preferably, the spring is sleeved on the hydraulic rod. The spring housing in this scheme plays the guide effect to the spring through the hydraulic stem on the hydraulic stem, prevents the spring bending.

Preferably, the buffer cavity is filled with hydraulic oil. The buffer chamber in this scheme is equipped with hydraulic oil, because the buffer chamber is as tertiary buffering, although the decrement of hydraulic oil is very little, but also can play certain cushioning effect, prevents that the metal from bumping hard.

The utility model has the beneficial effects that: according to the multipurpose hydraulic mechanical buffer device for the steel rolling mill, a spring plays a primary buffering role, a secondary buffering mechanism plays a secondary buffering role, and a buffering cavity plays a tertiary buffering role; the hydraulic buffer device effectively solves the problem that most hydraulic buffer devices rely on hydraulic pressure for buffering and have poor buffering effect.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an external schematic view of the present invention;

FIG. 3 is a structural view of a secondary cushion mechanism of the present invention;

FIG. 4 is a view showing the construction of the telescopic mechanism of the present invention;

shown in the figure:

1. a hydraulic cylinder; 2. a fixing plate; 3. a hydraulic lever; 4. a spring; 5. a limiting rod; 6. a first piston block; 7. a fixed block; 8. a first positioning block; 9. a second positioning block; 10. a piston block II; 11. a secondary buffer mechanism; 1101. a first connecting rod; 1102. connecting blocks; 1103. a second connecting rod; 1104. positioning pins; 1105. a top plate; 1106. a rubber arc plate; 12. a telescoping mechanism; 1201. a first telescopic rod; 1202. a second telescopic rod; 1203. a base plate.

Detailed Description

In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.

As shown in fig. 1 to 4, the multi-purpose hydraulic mechanical buffer device for a steel rolling mill of the present invention includes a hydraulic cylinder 1, a hydraulic rod 3 extending into the hydraulic cylinder 1, and a fixing plate 2 fixedly connected to an outer end of the hydraulic rod 3, wherein the hydraulic cylinder 1 is a cylindrical sealed cylinder body, one end of the hydraulic rod 3 extends from one end of the hydraulic cylinder 1, and the fixing plate 2 is fixedly connected to an end of the hydraulic rod 3 located outside the hydraulic cylinder 1 for connecting with a device.

A first piston block 6 and a second piston block 10 are arranged in the hydraulic cylinder 1, the first piston block 6 is arranged on one side close to the fixing plate 2, one side, far away from the second piston block 10, of the first piston block 6 is fixedly connected with the inner end of the hydraulic rod 3, and the hydraulic rod 3 penetrates through the hydraulic cylinder 1 without being arranged in a sealing mode, so that air pressure balance on the right side of the first piston block 6 in the drawing 1 is facilitated.

A spring 4 is arranged between the fixed plate 2 and the hydraulic cylinder 1, the spring 4 is sleeved on the hydraulic rod 3, one end of the spring 4 is propped against the fixed plate 2, and the other end of the spring 4 is propped against the hydraulic cylinder 1.

A plurality of limiting rods 5 are fixedly connected between the fixing plate 2 and the piston block I6, the limiting rods 5 are arranged along the 3 circumferential directions of the hydraulic rods, limiting rod sliding holes matched with the limiting rods 5 are formed in the hydraulic cylinder 1, and the limiting rods 5 slide along the length direction of the hydraulic cylinder 1 to guide the fixing plate 2.

And a secondary buffer mechanism is arranged between the first piston block 6 and the second piston block 10. The secondary buffer mechanism comprises a second positioning block 9 fixedly connected to a second piston block 10 and a first fixing block 7 fixedly connected to a first piston block 6, and the second positioning block 9 and the first fixing block 7 are both located between the first piston block 6 and the second piston block 10.

The positioning device further comprises at least two connecting blocks 1102 arranged between the fixing block 7 and the second positioning block 9 along the circumferential direction of the hydraulic cylinder 1, and the number of the connecting blocks 1102 is two in the embodiment.

The connecting block 1102 is connected with the fixing block 7 through a first connecting rod 1101, a first positioning block 8 is fixedly connected to the side face of the fixing block 7, the connecting block 1102 is connected with a second positioning block 9 through a second connecting rod 1103, one end of the first connecting rod 1101 is hinged to the connecting block 1102, the other end of the first connecting rod 1101 is hinged to the first positioning block 8 on the fixing block 7, one end of the second connecting rod 1103 is hinged to the connecting block 1102, the other end of the second connecting rod 1103 is hinged to the second positioning block 9, and a rubber arc plate 1106 is fixedly connected to one side, close to the inner wall of the hydraulic cylinder 1, of the connecting block 1102.

One side of the connecting block 1102 close to the inner wall of the hydraulic cylinder 1 is fixedly connected with a top plate 1105, the rubber arc plate 1106 is fixedly connected on the top plate 1105, and one side of the rubber arc plate 1106 close to the inner wall of the hydraulic cylinder 1 is set to be arc-shaped, so as to be attached to the inner wall.

As shown in fig. 4, a telescopic mechanism 12 is connected between the two connecting blocks 1102, the telescopic mechanism 12 includes a first telescopic rod 1201 and a second telescopic rod 1202, and the first telescopic rod 1201 and the second telescopic rod 1202 are respectively fixedly connected to the two connecting blocks 1102. The first telescopic rod 1201 is provided with a telescopic cavity into which the second telescopic rod 1202 is inserted, and the end part of the second telescopic rod 1202 is fixedly connected with a bottom plate 1203 in sliding connection with the telescopic cavity.

One side of the piston block II 10, which is far away from the piston block I6, and the hydraulic cylinder 1 form a closed buffer cavity, hydraulic oil is filled in the buffer cavity, a certain amount of air can be mixed in the hydraulic oil in order to improve the compression deformation of the buffer cavity, and at least 3 layers of sealing rings are arranged on the piston block II 10 in order to improve the tightness of the buffer cavity.

The use method of the utility model comprises the following steps: during the use, carry out fixed connection with fixed plate 2 and the apparatus for producing that needs cushion, when apparatus for producing produced the impact to buffer, fixed plate 2 removed to 1 direction of pneumatic cylinder, extrudeed hydraulic stem 3 simultaneously for hydraulic stem 3 together removes toward 1 direction of pneumatic cylinder, and fixed plate 2 extrudees spring 4, makes spring 4 shrink, carries out the one-level buffering.

When the hydraulic rod 3 moves towards the hydraulic cylinder 1, the first piston block 6 is pushed to move, the first piston block 6 pushes the first connecting rod 1101 to move towards the second connecting rod 1103 through the fixing block 7, meanwhile, the second connecting rod 1103 pushes the second piston block 10 to move together, liquid is arranged in the hydraulic cylinder for buffering, the liquid in the hydraulic cylinder is further buffered, the liquid generates resistance to the moving second piston block 10, the first piston block has force towards the second piston block, the first connecting rod and the second connecting rod are positioned between the first piston block and the second piston block, so that the first connecting rod and the second connecting rod are hinged to rotate towards the outer sides of two sides, the connecting block and the top plate are driven to move together, the moving block respectively drives the second telescopic rod and the first telescopic rod to move towards the two sides, the second-stage buffer mechanism is limited through the second telescopic rod and the second telescopic rod, and subsequent resetting of the second-stage buffer mechanism is facilitated, the moving block pushes the rubber arc plate on the top plate to be in close contact with the interior of the hydraulic rod, so that resistance is generated, the force of the hydraulic rod moving towards the direction of the hydraulic cylinder is relieved, and the relieving capacity is improved; the utility model effectively solves the problem that most of hydraulic buffer devices only rely on hydraulic pressure for buffering, and the buffering effect is poor.

Of course, the above description is not limited to the above examples, and the undescribed technical features of the present invention can be implemented by or using the prior art, and will not be described herein again; while the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes, modifications, additions and substitutions may be made without departing from the spirit of the utility model and the scope of the utility model as defined in the accompanying claims.

Claims

1. A multi-purpose hydraulic mechanical buffer device for steel rolling mill, its characterized in that: including pneumatic cylinder (1), stretch into hydraulic stem (3) of pneumatic cylinder (1) and fixed plate (2) of rigid coupling in hydraulic stem (3) outer end, piston block (6) and piston block two (10) are equipped with in pneumatic cylinder (1), one side that piston block two (10) were kept away from in piston block (6) and the inner rigid coupling of hydraulic stem (3), one side that piston block (6) were kept away from in piston block two (10) constitutes inclosed cushion chamber with pneumatic cylinder (1), spring (4) are equipped with between fixed plate (2) and pneumatic cylinder (1), be equipped with secondary buffer gear between piston block (6) and piston block two (10).

2. A multi-purpose hydromechanical damping device for steel mills according to claim 1, characterized in that: the secondary buffer mechanism comprises a second positioning block (9) fixedly connected to the second piston block (10), a first fixing block (7) fixedly connected to the first piston block (6), and at least two connecting blocks (1102) arranged between the second positioning block (9) and the second fixing block (7) along the circumferential direction of the hydraulic cylinder (1), the connecting block (1102) is connected with the fixed block (7) through a connecting rod I (1101), the connecting block (1102) is connected with the second positioning block (9) through a second connecting rod (1103), one end of the first connecting rod (1101) is hinged with the connecting block (1102), the other end of the first connecting rod (1101) is hinged with the fixed block (7), one end of the second connecting rod (1103) is hinged with the connecting block (1102), the other end of the second connecting rod (1103) is hinged with the second positioning block (9), one side of the connecting block (1102) close to the inner wall of the hydraulic cylinder (1) is fixedly connected with a rubber arc plate (1106).

3. A multi-purpose hydromechanical damping device for steel mills according to claim 2, characterized in that: a top plate (1105) is fixedly connected to one side, close to the inner wall of the hydraulic cylinder (1), of the connecting block (1102), and the rubber arc plate (1106) is fixedly connected to the top plate (1105).

4. A multi-purpose hydromechanical damping device for steel mills according to claim 2, characterized in that: the connecting blocks (1102) are provided with two, a telescopic mechanism (12) is connected between the two connecting blocks (1102), the telescopic mechanism (12) comprises a first telescopic rod (1201) and a second telescopic rod (1202), a telescopic cavity for inserting the second telescopic rod (1202) is formed in the first telescopic rod (1201), and a bottom plate (1203) which is connected in the telescopic cavity in a sliding mode is fixedly connected to the end portion of the second telescopic rod (1202).

5. A multi-purpose hydromechanical damping device for steel mills according to claim 1, characterized in that: a plurality of limiting rods (5) are fixedly connected between the fixing plate (2) and the piston block I (6), and limiting rod sliding holes matched with the limiting rods (5) are formed in the hydraulic cylinder (1).

6. A multi-purpose hydromechanical damping device for steel mills according to claim 1, characterized in that: the spring (4) is sleeved on the hydraulic rod (3).

7. A multi-purpose hydromechanical damping device for steel mills according to claim 1, characterized in that: and hydraulic oil is filled in the buffer cavity.