CN211693335U

CN211693335U - Buffer for coal injection equipment

Info

Publication number: CN211693335U
Application number: CN201922284355.9U
Authority: CN
Inventors: 彭渝建; 卢乾亮
Original assignee: Chengyu Vanadium Titanium Science and Technology Co Ltd
Current assignee: Chengyu Vanadium Titanium Science and Technology Co Ltd
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-10-16
Anticipated expiration: 2029-12-18

Abstract

The utility model relates to a coal injection equipment technical field just discloses a buffer for coal injection equipment, comprising a cylinder body, the outside fixed mounting of cylinder body has the position sleeve, the inside bottom fixed mounting of cylinder body has the block, the inner wall top fixed mounting of cylinder body has the oil blanket, the inside fixed mounting of cylinder body has the inner cylinder that is located the relative one side of block and oil blanket, the oilhole has been seted up to the outside of inner cylinder, the outside fixed mounting of inner cylinder has the outside that is located the oilhole and is located the inside accumulator of cylinder body, the top cartridge of oil blanket has the movable rod that extends to the inner cylinder inside, the inside packing in top of oil blanket has the outside gland packing that is located the movable rod. This buffer for coal injection equipment uses more stably, has stronger shock-absorbing capacity, can carry out the during operation at coal injection equipment, effectively cushions the vibration of its production, avoids the operation noise great, reduces inside mechanical collision to improve the life of coal injection driving.

Description

Buffer for coal injection equipment

Technical Field

The utility model relates to a coal injection equipment technical field specifically is a buffer for coal injection equipment.

Background

The blast furnace coal injection auxiliary fuel is a new technology widely adopted in modern blast furnace ironmaking production, and is one of the indispensable important means for modern blast furnace condition adjustment, the injected fuel can be heavy oil, coal powder, granular coal or natural gas, wherein the injected coal powder is increasingly highly regarded by various countries or regions, the technology makes obvious progress in recent decades, and in the related ironmaking new process, the technology is continuously popularized and applied, and a coal injection travelling crane belongs to one kind of coal injection equipment.

Traditional coal injection driving buffer is relatively poor in the use, and when the coal injection driving carries out the coal injection operation, the shake of its production is difficult to cushion, leads to the noise great, and inside mechanical collision is violent, influences the life of coal injection driving, so has proposed a buffer for coal injection equipment and has solved the above-mentioned problem that proposes.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a buffer for coal injection equipment possesses advantages such as buffer performance is strong, and it is relatively poor to have solved traditional coal injection driving buffer in the use cushioning nature, and when the coal injection driving carries out the coal injection operation, the shake of its production is difficult to cushion, leads to the noise great, and inside mechanical collision is violent, influences the problem of the life of coal injection driving.

(II) technical scheme

For the purpose that realizes above-mentioned shock-absorbing capacity is strong, the utility model provides a following technical scheme: a buffer for coal injection equipment comprises a cylinder body, wherein a positioning sleeve is fixedly mounted on the outer portion of the cylinder body, a sealing block is fixedly mounted at the bottom end of the inner portion of the cylinder body, an oil seal is fixedly mounted at the top of the inner wall of the cylinder body, an inner cylinder located on one side, opposite to the oil seal, of the sealing block is fixedly mounted in the cylinder body, an oil hole is formed in the outer portion of the inner cylinder, a pressure accumulator located outside the oil hole and inside the cylinder body is fixedly mounted on the outer portion of the inner cylinder, a movable rod extending into the inner cylinder is inserted into the top of the oil seal, sealing filler located outside the movable rod is filled into the top of the oil seal, a sealing cover located outside the movable rod is fixedly mounted at the top of the oil seal, a collision head is fixedly mounted at the top of the movable rod, a fixing ring is fixedly mounted on the outer portion of the collision head, a first spring extending to the bottom of, the bottom fixed mounting of movable rod has the piston head that is located the inside of inner casing, the top fixed mounting of piston head has the check valve that is located the outside of movable rod and runs through the piston head, the top fixed mounting of sealing block has the inside that is located the inner casing and extends to the second spring of piston head bottom.

Preferably, the outside of cylinder body is provided with the screw thread, cylinder body and position sleeve threaded connection movable rod and oil blanket sliding connection.

Preferably, the oil holes are annularly arranged in an equiangular and vertically equidistant array, and the inlet end of the check valve faces downwards and the outlet end of the check valve faces upwards.

Preferably, the bottom end of the impact head is arranged in an arc shape, and the top end of the first spring slightly expands outwards to deform and is internally contacted with the impact head.

Preferably, a first bolt in threaded connection with the top of the movable rod is inserted into the top end of the impact head, and a second bolt in threaded connection with the bottom of the movable rod is inserted into the bottom of the piston head.

Preferably, the outer part of the piston head is matched with the inner wall of the inner cylinder, and a sealing groove is formed in the outer part of the piston head.

(III) advantageous effects

Compared with the prior art, the utility model provides a buffer for coal injection equipment possesses following beneficial effect:

the buffer for the coal injection equipment is arranged on a coal injection travelling crane through a thread outside a cylinder body and a positioning sleeve, when the buffer works, an impact head moves downwards under the stress to drive a fixed ring and a movable rod to move downwards, the fixed ring pushes a first spring to generate compression deformation under the stress, the movable rod pushes a piston head to move downwards in an inner cylinder, hydraulic oil below the piston head is sent into a pressure accumulator through an oil hole in the moving process of the piston head, the hydraulic oil in the pressure accumulator enters the upper part of the piston head through the oil hole, a relatively upward acting force is applied to the piston head under the action of oil pressure to prevent the piston head from moving downwards, meanwhile, a second spring generates compression deformation to form secondary blocking of the piston head and the movable rod together with the first spring, the first spring and the second spring push the movable rod and the piston head upwards in the resetting process, the hydraulic oil in the inner cylinder directly flows from the upper part of the piston head, reduce its resistance that resets, this buffer simple structure is reasonable, uses more stably, has stronger shock-absorbing capacity, can carry out the during operation at coal injection equipment, effectively cushions the vibration of its production, avoids the operation noise great, reduces inside mechanical collision to improve the life of coal injection driving.

Drawings

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

fig. 2 is an enlarged schematic view of the structure at a position a of the present invention.

In the figure: the hydraulic cylinder comprises a cylinder body 1, a positioning sleeve 2, a sealing block 3, an oil seal 4, an inner cylinder 5, an oil hole 6, a pressure accumulator 7, a movable rod 8, sealing filler 9, a sealing cover 10, an impact head 11, a fixed ring 12, a first spring 13, a piston head 14, a check valve 15 and a second spring 16.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, a buffer for coal injection equipment comprises a cylinder body 1, a positioning sleeve 2 is fixedly installed on the outside of the cylinder body 1, a sealing block 3 is fixedly installed at the bottom end of the inside of the cylinder body 1, an oil seal 4 is fixedly installed at the top of the inner wall of the cylinder body 1, an inner cylinder 5 located on one side of the sealing block 3 opposite to the oil seal 4 is fixedly installed inside the cylinder body 1, an oil hole 6 is formed in the outside of the inner cylinder 5, a pressure accumulator 7 located outside the oil hole 6 and inside the cylinder body 1 is fixedly installed on the outside of the inner cylinder 5, a movable rod 8 extending into the inner cylinder 5 is inserted into the top of the oil seal 4, threads are arranged on the outside of the cylinder body 1, the cylinder body 1 is in threaded connection with the positioning sleeve 2, the movable rod 8 is in sliding connection with the oil seal 4, a sealing filler 9 located outside the movable rod 8 is filled into the top of the, the top of the movable rod 8 is fixedly provided with an impact head 11, the outside of the impact head 11 is fixedly provided with a fixed ring 12, the outside of the oil seal 4 is fixedly provided with a first spring 13 which extends to the bottom of the fixed ring 12 and is sleeved outside the impact head 11, the outside of the bottom end of the impact head 11 is arranged in an arc shape, the top end of the first spring 13 slightly expands outwards and deforms and the inside of the first spring is contacted with the impact head 11, the bottom end of the movable rod 8 is fixedly provided with a piston head 14 which is positioned inside the inner cylinder 5, the outside of the piston head 14 is matched with the inner wall of the inner cylinder 5, the outside of the piston head 14 is provided with a sealing groove, the top end of the impact head 11 is inserted with a first bolt which is in threaded connection with the top of the movable rod 8, the bottom of the piston head 14 is inserted with a second bolt which is in threaded connection with the bottom of the movable rod, the oil holes 6 are distributed in an annular equal-angle and vertical equal-distance array mode, the inlet end of the check valve 15 faces downwards and the outlet end faces upwards, the top of the sealing block 3 is fixedly provided with a second spring 16 which is positioned in the inner cylinder 5 and extends to the bottom of the piston head 14, the second spring and the positioning sleeve 2 are arranged on the coal injection travelling crane through the external threads of the cylinder body 1, when the coal injection travelling crane works, the impact head 11 is forced to move downwards to drive the fixed ring 12 and the movable rod 8 to move downwards, the fixed ring 12 pushes the first spring 13 to be stressed to generate compression deformation, meanwhile, the movable rod 8 pushes the piston head 14 to move downwards in the inner cylinder 5, in the moving process of the piston head 14, hydraulic oil below the piston head 14 is sent into the pressure accumulator 7 through the oil holes 6, the hydraulic oil in the pressure accumulator 7 enters the upper portion of the piston head 14 through the oil, meanwhile, the second spring 16 generates compression deformation and forms secondary blocking to the piston head 14 and the movable rod 8 with the first spring 13, in the resetting process, the first spring 13 and the second spring 16 push the movable rod 8 and the piston head 14 upwards, hydraulic oil in the inner cylinder 5 directly flows to the lower part of the inner cylinder from the upper part of the piston head 14 through the check valve 15, and the resetting resistance of the inner cylinder is reduced.

To sum up, the buffer for the coal injection equipment is arranged on a coal injection travelling crane through the external threads of a cylinder body 1 and a positioning sleeve 2, when the buffer works, an impact head 11 is forced to move downwards to drive a fixed ring 12 and a movable rod 8 to move downwards, the fixed ring 12 pushes a first spring 13 to be stressed to generate compression deformation, meanwhile, the movable rod 8 pushes a piston head 14 to move downwards in an inner cylinder 5, in the moving process of the piston head 14, hydraulic oil below the piston head 14 is sent into a pressure accumulator 7 through an oil hole 6, the hydraulic oil in the pressure accumulator 7 enters the upper part of the piston head 14 through the oil hole 6, a relatively upward acting force is applied to the piston head 14 under the action of the oil pressure to prevent the piston head 14 from moving downwards, meanwhile, a second spring 16 generates compression deformation and forms secondary blocking to the piston head 14 and the movable rod 8 with the first spring 13, and in the resetting process, the first spring 13 and the second spring 16 push the movable rod 8 and the, inside hydraulic oil of inner cylinder 5 directly flows to its below from piston head 14 top by check valve 15, reduce its resistance that resets, this buffer simple structure is reasonable, it is more stable to use, stronger shock-absorbing capacity has, can carry out the during operation at coal injection equipment, effectively cushion its vibration that produces, it is great to avoid the operation noise, reduce inside mechanical collision, thereby improve the life of coal injection driving, it is relatively poor to have solved traditional coal injection driving buffer in the use, when coal injection driving carries out the coal injection operation, the shake that its produced is difficult to cushion, lead to the noise great, inside mechanical collision is violent, influence the life's of coal injection driving problem.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a buffer for coal injection equipment, includes cylinder body (1), its characterized in that: the oil seal structure is characterized in that a positioning sleeve (2) is fixedly arranged at the outer part of the cylinder body (1), a sealing block (3) is fixedly arranged at the bottom end of the inner part of the cylinder body (1), an oil seal (4) is fixedly arranged at the top part of the inner wall of the cylinder body (1), an inner cylinder (5) which is positioned at one side, opposite to the oil seal (4), of the sealing block (3) is fixedly arranged at the inner part of the cylinder body (1), an oil hole (6) is formed in the outer part of the inner cylinder (5), an accumulator (7) which is positioned at the outer part of the oil hole (6) and positioned in the inner part of the cylinder body (1) is fixedly arranged at the outer part of the cylinder body (1), a movable rod (8) extending to the inner part of the inner cylinder (5) is inserted into the top part of the oil seal (4), a sealing filler (9) positioned at the outer part of the movable rod (8, the top fixed mounting of movable rod (8) has impact head (11), the outside fixed mounting of impact head (11) has solid fixed ring (12), the outside fixed mounting of oil blanket (4) has the bottom that extends to solid fixed ring (12) and overlaps and locate impact head (11) outside first spring (13), the bottom fixed mounting of movable rod (8) has piston head (14) that are located interior jar (5) inside, the top fixed mounting of piston head (14) has check valve (15) that are located the outside of movable rod (8) and run through piston head (14), the top fixed mounting of seal block (3) has the inside that is located interior jar (5) and extends to second spring (16) of piston head (14) bottom.

2. The buffer for a coal injection facility according to claim 1, wherein: the outside of cylinder body (1) is provided with the screw thread, cylinder body (1) and position sleeve (2) threaded connection movable rod (8) and oil blanket (4) sliding connection.

3. The buffer for a coal injection facility according to claim 1, wherein: the oil holes (6) are distributed in an annular equal-angle and vertical equidistant array mode, and the inlet end of the check valve (15) faces downwards and the outlet end faces upwards.

4. The buffer for a coal injection facility according to claim 1, wherein: the bottom end of the impact head (11) is arranged in an arc shape, the top end of the first spring (13) slightly expands outwards to deform, and the inside of the first spring is in contact with the impact head (11).

5. The buffer for a coal injection facility according to claim 1, wherein: the top end of the impact head (11) is inserted with a first bolt in threaded connection with the top of the movable rod (8), and the bottom of the piston head (14) is inserted with a second bolt in threaded connection with the bottom of the movable rod (8).

6. The buffer for a coal injection facility according to claim 1, wherein: the outer portion of the piston head (14) is matched with the inner wall of the inner cylinder (5), and a sealing groove is formed in the outer portion of the piston head (14).