CN201088916Y

CN201088916Y - Air bruising hammer and hammerhead thereof

Info

Publication number: CN201088916Y
Application number: CNU2007200463649U
Authority: CN
Inventors: 尹明生; 王新华; 俞昌喜
Original assignee: NANJING YINMAO LEAD-ZINC MINE Co Ltd
Current assignee: NANJING YINMAO LEAD-ZINC MINE Co Ltd
Priority date: 2007-09-26
Filing date: 2007-09-26
Publication date: 2008-07-23
Anticipated expiration: 2017-09-26

Abstract

The utility model provides a hammer head device of an air breaking hammer, which comprises a cylinder body, a piston in the cylinder body, a tie plate, which has an opening in the middle, a center platen and an end cap. The upper part of the hammer head drills through the holes on the center platen and the end cap, and the cylinder body is coaxial with the holes on the center platen and the end cap. The end of the cylinder body, the tie plate, the center platen and the end cap are orderly connected, and the hole on the tie plate is larger than the diameter of the piston. By using the utility model, a cushion gas chamber is arranged between the cylinder and the center platen, so that the vulnerable problem of the hammer head device is effectively solved.

Description

Air quartering hammer and tup device thereof

Technical field

The utility model relates to the air disintegrating machine, specifically, is the tup device that has pooling feature on the air quartering hammer.

Background technology

The air quartering hammer is used widely at metallurgical mine, and in the crushing operation of ore, some mines use the air quartering hammer that the ore of bulk is carried out fragmentation, enter next work flow again through the ore after the fragmentation.The tup device of conventional air quartering hammer referring to Fig. 1, comprises cylinder block 2, is arranged on the piston 3 in the cylinder block, the center platen 4 of middle part perforate 12, the end cap 7 of middle part perforate 13;

Hole

12,13 is passed on tup top; Long bolt 6 links to each other cylinder block end, center platen 4, end cap 7 successively, and cylinder block 2 is coaxial with

hole

12,13; Have the air flue 11 that communicates with its inner chamber in the cylinder block 2; End cap 7 is provided with the limited step 15 that prevents that tup from moving down.

Its course of work is as follows: the quartering hammer propulsion cylinder advances downwards, when tup 1 withstands ore 5, tup 1 bottom-up mobile promotion piston 3, piston 3 is moved to cylinder top by the cylinder bottom, when piston 3 bottoms surpass air flue 11 with air inlet 14 that the cylinder block inner chamber communicates, piston 3 forms under compressed-air actuated powered and pumps, and piston 3 impacts tups 1, tup 1 impacts ore 5 thereby form, up to ore reduction.

The problem of its existence: after piston begins to move back and forth, when tup 1 is fallen end cap 7 bottom limited steps 15 places, this moment is if be not related to gas check valve, piston 3 still can continue to move downward impact tup 1, will damage center platen 4, end cap 7, long bolt 6 like this, cause center platen 4 to be crashed to pieces or be out of shape, end cap 7 is by avulsion, and long bolt 6 is broken.In addition, after piston began to move back and forth, even tup 1 does not contact with ore 5, when tup 1 did not withstand ore 5, piston 3 still moved back and forth, and formed empty the impact.Damage and vibration that empty impact is brought to a certain extent are far longer than the damage that is brought when impacting ore.So just make traditional quartering hammer often break down aborning, the workload of maintenance is big, and maintenance cost is big, influences the production time.

The utility model content

What the utility model solved is the problem that existing air quartering hammer tup device damages easily.

The tup device of air quartering hammer comprises cylinder block, is arranged on the piston in the cylinder block, the backing plate of middle part perforate, center platen, end cap; The hole on center platen and the end cap is passed on tup top, and cylinder block is coaxial with the hole on center platen, the end cap; Cylinder block end, backing plate, center platen, end cap link to each other successively, and the hole on the backing plate is greater than piston diameter.

Its operation principle.Referring to Fig. 2, owing between cylinder block 2 and center platen 4, increased backing plate 8, increased the axial distance between cylinder block and the center platen, make when piston moves down the air inlet of crossing on the cylinder block inwall 14, at the piston lower surface, hole on the backing plate, the center platen upper surface, formed buffering air chamber 16 between the tup upper surface, when this buffering air chamber makes piston 3 impact cylinder 2 bottoms, form an air cushion layer, disappointing speed is slowed down, thereby make the piston 3 can not be when sky impacts to center platen 4, end cap 7 directly impacts, make between tup 1 and the center platen 4 and remaining certain distance, so just can avoid the damage of quartering hammer.When withstanding ore 5, tup 1 moves up, piston 3 is above the just continuous accelerated motion of meeting behind the air inlet, form very big percussion power, when piston 3 moves downward, constantly impact tup 1, tup 1 moves down until ore 5 is smashed, and tup 1 is fallen the spacing position of end cap, has formed buffering air chamber 16 again between the hole on piston lower surface, the backing plate, center platen upper surface, the tup upper surface.No matter be empty the impact or tup 1 impact ore 5, remaining certain distance between piston 3 and the center platen 4, the damage that so just can protect center platen 4, end cap 7, long bolt 6 to bring effectively because of the direct impact that is subjected to piston 3.

The utility model is transformed its structure on the basis that does not change traditional quartering hammer operation principle.The buffering air chamber that increases between cylinder 2 and center platen 4 has solved the problems referred to above effectively, utilizes original equipment to solve the out of order difficult problem of puzzlement quartering hammer.

As further improvement, backing plate becomes to be tightly connected with cylinder block, the center platen of its both sides; And the hole on tup top and the center platen becomes sealing to contact.Buffering air chamber 16 has better sealing like this, and its buffering effect to tup is better.

The utility model also provides the air that comprises above-mentioned tup device quartering hammer, and it is compared with traditional air quartering hammer, has following advantage: 1, the saving maintenance cost is remarkable, has won the production time, has alleviated maintenance labour intensity.2, increase cushion gas chamber device workload is little, simple in structure, is convenient to install, and production cost is low.

Description of drawings

Fig. 1 is the tup apparatus structure schematic diagram of existing air quartering hammer.

Fig. 2 is a tup apparatus structure schematic diagram of the present utility model.

The specific embodiment

The tup device of the quartering hammer of air shown in Fig. 2, piston 3 are arranged on cylinder block 2 inner chambers, the perforate 10,12,13 respectively of the middle part of backing plate 8, center platen 4, end cap 7.

Hole

12,13 is passed on tup 1 top, and cylinder block is coaxial with

hole

10,12,13.Cylinder block end, backing plate, center platen, end cap link to each other successively by stay bolt 6.Hole 10 on the backing plate is a circular hole, and its diameter is greater than piston diameter.

Tup top contacts with 12 one-tenth sealings in hole on the center platen.The both sides of backing plate 8 respectively have seal groove, and sealing ring 9 is set in the seal groove, so that backing plate respectively and the sealing between cylinder block, center platen.Have the air flue 11 that communicates with its inner chamber in the cylinder block 2; End cap 7 is provided with the limited step 15 that prevents that tup from moving down.

When piston moves down the air inlet of crossing on the cylinder block inwall 14, between the hole on piston lower surface, the backing plate, center platen upper surface, tup upper surface, formed buffering air chamber 16, when this buffering air chamber makes piston 3 impact cylinder 2 bottoms, form an air cushion layer, disappointing speed is slowed down, thereby piston 3 can not directly be impacted center platen 4, end cap 7 when sky impacts, make between tup 1 and the center platen 4 and remaining certain distance.

Claims

1. the tup device of air quartering hammer comprises cylinder block, is arranged on the piston in the cylinder block, the center platen of middle part perforate and end cap; The hole on center platen and the end cap is passed on tup top, and cylinder block is coaxial with the hole on center platen, the end cap, it is characterized in that: further comprising the backing plate of middle part perforate, and cylinder block end, backing plate, center platen, end cap link to each other successively, and the hole on the backing plate is greater than piston diameter.

2. by the described tup device of claim 1, it is characterized in that: the hole on the backing plate is a circular hole, and its diameter is greater than piston diameter.

3. by claim 1 or 2 described tup devices, it is characterized in that: backing plate becomes to be tightly connected with cylinder block, the center platen of its both sides.

4. by claim 1 or 2 described tup devices, it is characterized in that: backing plate and center platen are an integral body.

5. by claim 1 or 2 described tup devices, it is characterized in that: tup top becomes to seal with hole on the center platen and contacts.

6. air quartering hammer, it is characterized in that: it comprises the described tup device of claim 1.