CN202516989U - Pneumatic hammer - Google Patents

Pneumatic hammer Download PDF

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Publication number
CN202516989U
CN202516989U CN2011205571716U CN201120557171U CN202516989U CN 202516989 U CN202516989 U CN 202516989U CN 2011205571716 U CN2011205571716 U CN 2011205571716U CN 201120557171 U CN201120557171 U CN 201120557171U CN 202516989 U CN202516989 U CN 202516989U
Authority
CN
China
Prior art keywords
hole
cylinder
centre
valve
pneumatic hammer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2011205571716U
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Chinese (zh)
Inventor
丁成进
杨仁广
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HAI'AN WEISHI HEAVY MACHINERY CO Ltd
Original Assignee
HAI'AN WEISHI HEAVY MACHINERY CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HAI'AN WEISHI HEAVY MACHINERY CO Ltd filed Critical HAI'AN WEISHI HEAVY MACHINERY CO Ltd
Priority to CN2011205571716U priority Critical patent/CN202516989U/en
Application granted granted Critical
Publication of CN202516989U publication Critical patent/CN202516989U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Percussive Tools And Related Accessories (AREA)
  • Forging (AREA)

Abstract

The utility model provides a pneumatic hammer which comprises a motor, a compression cylinder, a working cylinder, a hammer rod, a cock, a crank link, a piston, air make-up holes, a large anvil block, upper and lower air passages, a gear shaft and a crank shaft, wherein the working cylinder comprises a guide sleeve, a front cylinder and a rear cylinder, the cock comprises an upper valve, a middle valve and a lower valve, the air make-up holes are an upper air make-up hole and a lower make-up hole, and a through hole, a stud bolt used for connecting, and nuts at two ends are arranged on the guide sleeve of the working cylinder. The pneumatic hammer provided by the utility model has the technical effects as follows: 1, a screw thread blind hole on the pipe sleeve of the working cylinder is improved to be a through hole, the form of the stud bolt and the nuts at the two ends for tightening is used for connection, since the nuts are arranged at the two ends, and the nuts are made of structural steel generally, the tensile strength and the tenacity are higher than that of the material of the working cylinder; the bolt and the nuts are all standard components, excellent quality and reasonable price is achieved, even the bolt gets loose, only the replacement is required, and the repairing is very simple; and 2, the maximal weight of a part falling down is 1750 kg, so that the pneumatic hammer is suitable for the forging of large workpieces.

Description

A kind of pneumatic hammer
Technical field
The utility model relates to a kind of pneumatic hammer, belongs to mechanical technical field of forging.
Background technology
The conventional air hammer is introduced technology from the former Soviet Union for China's the fifties and is made, as a kind of flat-die forging equipment, because its model precision; Advantage such as fault rate is low, easy to maintenance, maintenance cost is low, energy consumption is low, flexible operation, method of operating are easy to learn is forged the favor of enterprise always deeply.Existing pneumatic hammer has following weak point: 1) maximum specification is: C41-1000 1000Kg pneumatic hammer, dropping weight is 1000Kg to the maximum.Therefore, be not suitable for the forging of bigger workpiece; 2) working cylinder guide pin bushing type of attachment is unreasonable, and is as shown in Figure 1, because bolt 15 directly is connected with screwed hole on the working cylinder matrix; And the working cylinder matrix material is generally grey cast-iron, and under the effect of the bigger shock loading of hammer stem, working cylinder matrix screwed hole is easy to wearing and tearing, plucking; Bolt is loosening easily; Simultaneously, in case working cylinder matrix screwed hole weares and teares, bolt looseness, repair very difficulty.
Summary of the invention
The purpose of the utility model is the weak point that overcomes prior art, and a kind of pneumatic hammer is provided.
The pneumatic hammer of the utility model; Comprise motor, compression cylinder, working cylinder, hammer stem, stopcock, crank connecting link, piston, tonifying Qi hole, big anvil block, go up downtake, gear shaft and bent axle; Described working cylinder comprises guide pin bushing, preceding cylinder and back cylinder; Described stopcock comprises valve, middle valve and following valve, and described tonifying Qi hole comprises tonifying Qi hole and following tonifying Qi hole, and described working cylinder guide pin bushing is provided with through hole, stud and two end nuts.
Described cylinder total height is 1800mm, and described preceding cylinder diameter is 750 mm, and described back cylinder diameter is 775mm, and described front and back cylinder centre-to-centre spacing is 1225mm; Last valve center to the pneumatic hammer end face distance of described stopcock is 180mm, and last valve and middle valve centre-to-centre spacing are 710mm, and described middle valve is 335mm with following valve centre-to-centre spacing; Described upward tonifying Qi hole to pneumatic hammer end face distance is 240mm, and described tonifying Qi hole centre-to-centre spacing up and down is 650mm; Described base total height is 2160mm, and described tooth axis hole is 670mm apart from faying face centre-to-centre spacing, and described tooth axis hole and crankshaft hole centre-to-centre spacing are 560mm.
The pneumatic hammer of the utility model has following technique effect:
1, the tapped blind hole on the working cylinder guide pin bushing is improved to through hole, and the form of utilizing stud to add the two ends nut screwing clamping connects, because two ends are nut, and the material of nut is generally structural steel, and its tensile strength, toughness are higher than the working cylinder material far away; And bolt, nut are standard component, and be good and cheap, even if bolt looseness, replacing gets final product, and repairs very simple;
2, dropping weight is 1750Kg to the maximum, therefore applicable to the forging of workpiece greatly.
Description of drawings
Fig. 1 is a cylinder guide pin bushing connected mode in the pneumatic hammer of prior art.
Fig. 2 is a cylinder guide pin bushing connected mode in the pneumatic hammer of the utility model.
Fig. 3 is the overall structure sketch map of the pneumatic hammer of the utility model.
Wherein, 1 is motor, and 2 is bent axle, and 3 is gear shaft, and 4-2 is a downtake, and 5 is crank connecting link; 6 are the tonifying Qi hole, and 7 is compression cylinder, and 8 is piston, and 4-1 is last air flue, and 9 is working cylinder, and 10 is stopcock; 11 is hammer stem, and 12 is stud, and 13 is nut, and 14 is big anvil block, and 15 is bolt.
The specific embodiment
Like Fig. 2, shown in 3; The pneumatic hammer of the utility model; Comprise motor 1, compression cylinder 7, working cylinder 9, hammer stem 11, stopcock 10, crank connecting link 5, piston 8, tonifying Qi hole 6, big anvil block 14, go up downtake 4-1,4-2, gear shaft 3 and bent axle 2; Described working cylinder comprises guide pin bushing, preceding cylinder and back cylinder; Described stopcock comprises valve, middle valve and following valve, and described tonifying Qi hole comprises tonifying Qi hole and following tonifying Qi hole, and described working cylinder guide pin bushing is provided with through hole, stud 12 and two end nuts 13.Described cylinder total height is 1800mm, and described preceding cylinder diameter is 750 mm, and described back cylinder diameter is 775mm, and described front and back cylinder centre-to-centre spacing is 1225mm; Last valve center to the pneumatic hammer end face distance of described stopcock is 180mm, and last valve and middle valve centre-to-centre spacing are 710mm, and described middle valve is 335mm with following valve centre-to-centre spacing; Described upward tonifying Qi hole to pneumatic hammer end face distance is 240mm, and described tonifying Qi hole centre-to-centre spacing up and down is 650mm; Described base total height is 2160mm, and described tooth axis hole is 670mm apart from faying face centre-to-centre spacing, and described tooth axis hole and crankshaft hole centre-to-centre spacing are 560mm.
The pneumatic hammer of the utility model is when work; Drag through belt pulley, the deceleration of gear double reduction mechanism by motor; Drive piston 8 through crank connecting rod 5 and in compression cylinder 7, do straight reciprocating motion up and down, form pressure air respectively in compression cylinder 7 upper and lower cavities, in last downtake is input to the working cylinder upper and lower cavity; Order about hammer stem 11 and do the up and down straight reciprocating motion opposite, hit thereby realize forging with piston 8 directions of motion.

Claims (2)

1. pneumatic hammer; Comprise motor, compression cylinder, working cylinder, hammer stem, stopcock, crank connecting link, piston, tonifying Qi hole, big anvil block, go up downtake, gear shaft and bent axle; Described working cylinder comprises guide pin bushing, preceding cylinder and back cylinder, and described stopcock comprises valve, middle valve and following valve, and described tonifying Qi hole comprises tonifying Qi hole and following tonifying Qi hole; It is characterized in that described working cylinder guide pin bushing is provided with through hole, stud and two end nuts.
2. pneumatic hammer according to claim 1 is characterized in that, described cylinder total height is 1800mm, and described preceding cylinder diameter is 750 mm, and described back cylinder diameter is 775mm, and described front and back cylinder centre-to-centre spacing is 1225mm; Last valve center to the pneumatic hammer end face distance of described stopcock is 180mm, and last valve and middle valve centre-to-centre spacing are 710mm, and described middle valve is 335mm with following valve centre-to-centre spacing; Described upward tonifying Qi hole to pneumatic hammer end face distance is 240mm, and described tonifying Qi hole centre-to-centre spacing up and down is 650mm; Described base total height is 2160mm, and described tooth axis hole is 670mm apart from faying face centre-to-centre spacing, and described tooth axis hole and crankshaft hole centre-to-centre spacing are 560mm.
CN2011205571716U 2011-12-28 2011-12-28 Pneumatic hammer Expired - Fee Related CN202516989U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011205571716U CN202516989U (en) 2011-12-28 2011-12-28 Pneumatic hammer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011205571716U CN202516989U (en) 2011-12-28 2011-12-28 Pneumatic hammer

Publications (1)

Publication Number Publication Date
CN202516989U true CN202516989U (en) 2012-11-07

Family

ID=47099959

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011205571716U Expired - Fee Related CN202516989U (en) 2011-12-28 2011-12-28 Pneumatic hammer

Country Status (1)

Country Link
CN (1) CN202516989U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103264130A (en) * 2013-06-05 2013-08-28 海安县威仕重型机械有限公司 Air hammer with air replenished continuously
CN106001367A (en) * 2016-06-21 2016-10-12 太仓市顺昌锻造有限公司 Air hammer device for forging
CN106925702A (en) * 2017-04-18 2017-07-07 苏州蓝王机床工具科技有限公司 A kind of pneumatic hammer structure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103264130A (en) * 2013-06-05 2013-08-28 海安县威仕重型机械有限公司 Air hammer with air replenished continuously
CN106001367A (en) * 2016-06-21 2016-10-12 太仓市顺昌锻造有限公司 Air hammer device for forging
CN106925702A (en) * 2017-04-18 2017-07-07 苏州蓝王机床工具科技有限公司 A kind of pneumatic hammer structure

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20121107

Termination date: 20151228

EXPY Termination of patent right or utility model