CN209491285U - A kind of pneumatic hammer - Google Patents
A kind of pneumatic hammer Download PDFInfo
- Publication number
- CN209491285U CN209491285U CN201822056206.2U CN201822056206U CN209491285U CN 209491285 U CN209491285 U CN 209491285U CN 201822056206 U CN201822056206 U CN 201822056206U CN 209491285 U CN209491285 U CN 209491285U
- Authority
- CN
- China
- Prior art keywords
- tup
- pneumatic hammer
- hammer
- chopping block
- working cylinder
- 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
Links
- 238000013016 damping Methods 0.000 claims abstract description 34
- 229910000639 Spring steel Inorganic materials 0.000 claims description 13
- 239000011324 bead Substances 0.000 claims description 6
- 230000014759 maintenance of location Effects 0.000 claims description 6
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 2
- 238000005299 abrasion Methods 0.000 abstract description 5
- 238000005242 forging Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 7
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 230000005489 elastic deformation Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- 229910000617 Mangalloy Inorganic materials 0.000 description 2
- 241000233855 Orchidaceae Species 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010285 flame spraying Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000011195 cermet Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Percussive Tools And Related Accessories (AREA)
Abstract
The utility model discloses a kind of pneumatic hammers, belong to technical field of forging.The pneumatic hammer includes pneumatic hammer rack, is located at the working cylinder of pneumatic hammer frame top, and the first chopping block being fixed in pneumatic hammer gantry base；It is equipped with piston in the working cylinder, the inner wall of the piston and working cylinder fits closely and is connected with tup by hammer stem；Guide pipe is also arranged on the hammer stem, one end of the guide pipe is connect with piston, and the other end is connect with tup；The annular convex platform being fixed in inside working cylinder is equipped with inside the working cylinder；The annular convex platform is connected by one end of the first damping spring and tup；The other end of the tup is also connected with the second chopping block.Pneumatic hammer described in the utility model can alleviate the abrasion of hammer stem and tup, extend the service life of pneumatic hammer.
Description
Technical field
The utility model relates to technical field of forging more particularly to a kind of pneumatic hammers.
Background technique
Pneumatic hammer is one kind of flat-die forging equipment at present.There are two cylinder, compression cylinder and working cylinder, compressions for pneumatic hammer
Cylinder compresses air, is sent into working cylinder by distributing valve, pushes piston to move up and down together with tup in working cylinder
Hammer action is played, impact metalwork reaches molding purpose.Since metalwork intensity is big, hardness is high, molding difficulty is big, so empty
Pneumatic hammer will can realize molding purpose by high-frequency reciprocal impact, which results in the working frequency of tup is very high,
Hammer stem in general pneumatic hammer equipment is consistent with the frequency of tup, and about per minute at 80 times or so, each shift is moved up and down
It will reach more than 3,000 times, and vibration and impact force are larger when pneumatic hammer work, and if things go on like this will lead to tup and occur seriously
Abrasion, shorten the service life of pneumatic hammer.
Summary of the invention
In order to solve the problems in the existing technology, the utility model provides a kind of pneumatic hammer, can alleviate hammer stem
With the abrasion of tup, extend the service life of pneumatic hammer.
In order to achieve the above object, the technical solution that the utility model is taken is as follows:
A kind of pneumatic hammer, including pneumatic hammer rack, are located at the working cylinder of pneumatic hammer frame top, and are fixed in air
Hammer the first chopping block in gantry base into shape；It is equipped with piston in the working cylinder, the inner wall of the piston and working cylinder closely pastes
It closes and tup is connected with by hammer stem；Guide pipe is also arranged on the hammer stem, one end of the guide pipe is connect with piston, separately
One end is connect with tup；The annular convex platform being fixed in inside working cylinder is equipped with inside the working cylinder；The guide pipe
The other end is connected through one end of annular convex platform and tup；The annular convex platform is connected by one end of the first damping spring and tup
It connects；The other end of the tup is also connected with the second chopping block, and second chopping block is located at the surface of the first chopping block.
Further, the inside of the guide pipe is equipped with hammer stem sliding channel, the inner wall edge of the hammer stem sliding channel
Multiple strip projected parts contacted with hammer stem surface are uniformly provided with along center position, on the guiding inside pipe wall and strip projected parts
Coated with wearing layer.
Further, the annular convex platform includes inverted T shaped annular convex platform；One end of first damping spring and type ring shape
Boss is affixed, and one end that the other end is set on tup and with tup is affixed.
Further, second chopping block is set in the other end of tup and is detachably connected with tup, second anvil
The top of plate is equipped with retention bead, and the other end of the tup is equipped with limiting groove, and second chopping block passes through limit convex card lifting
Connect the other end in tup.
Further, groove compatible with the second cutting boards structure is offered on first chopping block.
Further, the working cylinder is connect with tup by connecting flange close to one end of tup, the connection method
The through-hole passed through for accommodating tup is offered on orchid, is coated with wearing layer in institute's through-hole.
Further, the pneumatic hammer bottom of the frame is additionally provided with damping device.
Further, the damping device includes rigid hollow frame structure, the top of the rigid hollow frame structure
Using spring steel plate, the bottom of the spring steel plate is connected with U-shaped flexible cushion, offers receiving in the U-shaped flexible cushion
Chamber is fixed with the second damping spring in the accommodating chamber, and there are gaps between second damping spring and spring steel plate.
The utility model has the advantages that compared with prior art, pneumatic hammer described in the utility model on tup first by being arranged second
Chopping block drives tup that can play preferably to tup when carrying out reciprocating impact movement in piston in working cylinder by hammer stem
Protective effect, reduces the abrasion of tup, to achieve the purpose that the service life for extending pneumatic hammer；Secondly by setting in annular
The first damping spring between boss and tup, when tup carries out one-shot, elastic deformation occurs for the first damping spring,
When tup completes one-shot movement, reinstatement is needed to drive tup, hammer since elastically-deformable first damping spring occurs
Bar and piston reset；Preferably to hammer while capable of playing the role of guiding and support to hammer stem by the setting of guide pipe
Bar plays the role of protection, is improved and is led while reducing guide pipe with hammer stem contact area by strip projected parts and wearing layer
To the wear-resisting property of pipe, and then achieve the purpose that the service life for extending pneumatic hammer.
Detailed description of the invention
It, below will be to attached needed in embodiment in order to illustrate more clearly of the technical solution of the utility model
Figure is briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the utility model, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is a kind of partial sectional view of pneumatic hammer provided in this embodiment；
Fig. 2 is the partial enlarged view in the portion A in Fig. 1.
In figure: 1- pneumatic hammer rack, 2- working cylinder, the first chopping block of 3-, 4- piston, 5- hammer stem, 6- tup, the second anvil of 7-
Plate, 8- guide pipe, 9- annular convex platform, the first damping spring of 10-, 11- connecting flange, 12- groove, 13- frame structure, 14- bullet
Property steel plate, 15-U type flexibility cushion, the second damping spring of 16-, 17- strip projected parts, 18- wearing layer, 19- retention bead.
Specific embodiment
In the description of the present invention, it should be understood that term " center ", "upper", "lower", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion is signified
Device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this is practical
Novel limitation.
Term " first ", " second " be used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or
Implicitly indicate the quantity of indicated technical characteristic." first " is defined as a result, the feature of " second " can be expressed or imply
Ground includes one or more of the features.In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two
It is a or more than two.
The utility model is further elaborated with reference to the accompanying drawings and examples.
Embodiment
With reference to Fig. 1, a kind of pneumatic hammer, including pneumatic hammer rack 1, it is located at the working cylinder 2 at 1 top of pneumatic hammer rack, with
And it is fixed in the first chopping block 3 on 1 pedestal of pneumatic hammer rack；Piston 4, the piston 4 and work are equipped in the working cylinder 2
The inner wall of cylinder 2 fits closely and is connected with tup 6 by hammer stem 5；It is also arranged with guide pipe 8 on the hammer stem 5, for hammer
Bar plays the role of guiding and support, and one end of the guide pipe 8 is connect with piston 4, and the other end is connect with tup 6；The work
Make to be equipped with the annular convex platform 9 being fixed in inside working cylinder 2 inside cylinder 2；The other end of the guide pipe 8 runs through annular convex platform
9 connect with one end of tup 6；The annular convex platform 9 is connect by the first damping spring 10 with one end of tup 6；The tup 6
The other end be also connected with the second chopping block 7, second chopping block 7 is located at the surface of the first chopping block 3.
It should be noted that the driving lower piston 4 in the present embodiment working cylinder 2 in compressed gas passes through hammer with reference to Fig. 1
Bar 5 drives tup 6 to move downward to the metalwork one-shot to be processed on the first chopping block 3, the process that tup 6 moves downward
In the first damping spring 10 elastic deformation occurs, after the completion of 6 one-shot of tup, since elastically-deformable first damping occurs
Spring needs elasticity recovery deformation, therefore moves upwards again in the drive lower ram 6, hammer stem 5 and piston 4 of the first damping spring 10
Position, waits next Secondary Shocks, so carries out the progress reciprocating impact movement of tup 6 and processes to metalwork to be processed.This implementation
The example annular convex platform 9 is welded on the inside of the lower end of working cylinder 2, for hammer stem 5, guide pipe 8 and the first damping spring
10 play the role of fixed support.
Further, with reference to Fig. 1 and Fig. 2, the inside of the guide pipe 8 is equipped with hammer stem sliding channel, the hammer stem sliding
The inner wall edge in channel is uniformly provided with multiple strip projected parts 17 contacted with 5 surface of hammer stem, the guide pipe 8 along center position
Wearing layer 18 is coated on inner wall and strip projected parts 17.With reference to Fig. 1 and Fig. 2, strip projected parts 17 described in the present embodiment and guiding
Pipe 8 is integrated, and the strip projected parts 17 are arc-shaped recess shape structure with the contact surface of hammer stem 5, and arc-shaped recess shape
Structure is adapted with the radian of hammer stem 15.The wearing layer 18 is nickel-base alloy, ferrous alloy, tungsten carbide, WC ceramics or gold
Belong to ceramic one such, wherein including 10 carbide, wearing layer is coated using the mode of supersonic flame spraying
On 8 inner wall of strip projected parts 17 and guide pipe, wearing layer makes guide pipe 8 rub with hammer stem more than 5 times without grinding easily
Damage is contacted in reduction guide pipe with hammer stem to guarantee the long-term effectiveness of guide pipe 8 by strip projected parts 17 and wearing layer 18
The wear-resisting property of guide pipe is improved while area, and then achievees the purpose that the service life for extending pneumatic hammer.
Further, with reference to Fig. 1, the annular convex platform 9 includes inverted T shaped annular convex platform, for the first damping spring 10
Play the role of preferably fixed support；One end of first damping spring 10 is set in the boss with inverted T shaped annular convex platform
It is welded as a whole in structure and with the boss structure of inverted T shaped annular convex platform, the other end is set in one on tup 6 and with tup 6
End is welded as a whole.
Further, with reference to Fig. 1, since tup 6 is prone to wear in reciprocating impact motion process, second chopping block 7
Be set in the other end of tup 6 and be detachably connected with tup 6, by the second chopping block 7 make tup 6 impact end obtain compared with
Good protection enhances the wear-resisting property of tup 6, and then extends the service life of pneumatic hammer, and when the second chopping block 7 is worn
When, convenient for the timely dismounting and change of the second chopping block 7, the top of second chopping block 7 is equipped with retention bead 19, the tup 6
The other end is equipped with limiting groove, and second chopping block 7 is connected to the other end of tup 6 by retention bead 19, is convenient for the second anvil
The fast quick-detach of plate 7, replacement.
It should be noted that the present embodiment the first chopping block 3 and the second chopping block 7 are made using manganese steel material, manganese steel material
For ZGMn13A material, by it from room temperature under the conditions of 1050 DEG C, 40 to 50 minutes is kept the temperature, then continues to heat up,
Heat preservation heat preservation 40 to 50 minutes at 1100 DEG C, then the first chopping block 3 and the second chopping block 7 is made in quick water cooling, is able to bear punching
Hit, squeeze, etc. bad working environments condition, the excessive wear when hammering workpiece of the first chopping block 3 and the second chopping block 7 can be prevented, improve
The service life of first chopping block 3 and the second chopping block 7.
Further, with reference to Fig. 1, groove 12 compatible with 7 structure of the second chopping block is offered on first chopping block 3,
For placing metalwork to be processed, metalwork to be processed is positioned.
Further, with reference to Fig. 1, the working cylinder 2 is removably equipped with connecting flange 11 close to one end of tup 6,
The connecting flange 11 is connect by fastener with the end of working cylinder 2, and is offered on connecting flange 11 for accommodating hammer
First 6 through-holes passed through, institute's through-hole is interior to be coated with wearing layer, and the tup 6 is connect with 11 clearance fit of connecting flange, when tup 6
When carrying out reciprocating impact movement in working cylinder 2, end thereof contacts of the tup 6 with working cylinder 2 close to tup 6 more frequently hold
It is also easy to produce abrasion, and when impact force is larger, collision dynamics when tup 6 is contacted with working cylinder 2 is larger, is easy to cause work
Cylinder 2 is damaged close to one end of tup 6, can extend working cylinder to a certain extent by the setting of connecting flange 11
2, with the contact area of tup 6, enable connecting flange 11 to undertake local collision dynamics, and then reduce working cylinder 2 close to hammer
The collision dynamics at first end, and then extend the service life of working cylinder 2, achieve the purpose that extend pneumatic hammer service life.It needs
It is noted that the present embodiment described in wearing layer be nickel-base alloy, ferrous alloy, tungsten carbide, WC ceramics or cermet its
One of, wherein including 10 carbide, wearing layer is coated in connection method using the mode of supersonic flame spraying
On the through-hole wall of orchid 11, the wearability of connecting flange 11 is enhanced, and then enhance the use of connecting flange 11 and working cylinder
Service life.
Further, with reference to Fig. 1,1 bottom of pneumatic hammer rack is additionally provided with damping device, the damping device and air
The bottom for hammering rack 1 into shape is connected by fastener threads, can play the role of damping, buffering.
Further, with reference to Fig. 1, the damping device includes rigid hollow frame structure 13, the rigid hollow frame
The top of structure 13 uses spring steel plate 14, and the spring steel plate 14 and the bottom of pneumatic hammer rack 1 are connected by fastener threads
It connects, and the bottom of spring steel plate 14 is connected with U-shaped flexible cushion 15, offers accommodating chamber in the U-shaped flexible cushion 15, it is described
The second damping spring 16 is fixed in accommodating chamber, there are gaps between second damping spring 16 and spring steel plate 14, work as hammer
First 6 pairs of metalworks to be processed carry out in the effect of ballistic motion, since the frequency and impact dynamics of impact are larger, so that pneumatic hammer
Rack 1 is also relatively large to the impact force on ground, moves downward and the one the first when tup 6 is impacted along working cylinder 2
When metalwork to be processed in chopping block 3 impacts, spring steel plate 14 is towards U-shaped flexible cushion 15 under the influence of the impact force
Direction moves, and the bottom of spring steel plate 14 is contacted with the top of the second damping spring 16 in motion process, the second damping spring 16
Elastic deformation occurs, plays the role of buffering to impact force, completes one-shot when tup 6 and is resetted along working cylinder 2
When moving upwards, the second damping spring 16 and spring steel plate 14 also occur to reset to be separated simultaneously, wait tup 6 next time
Ballistic motion can not only play the role of buffering repeatedly to impact force of the pneumatic hammer rack 1 to ground, and due to
Damping device is connect with 1 bottom thread of pneumatic hammer rack so that the firm performance of pneumatic hammer rack 1 is more preferable.
It is preferred embodiments of the present invention above, it is noted that for those skilled in the art
For, without departing from the principle of this utility model, several improvements and modifications can also be made, these improvements and modifications
It is considered as the protection scope of the utility model.
Claims (8)
1. a kind of pneumatic hammer, it is characterised in that: including pneumatic hammer rack (1), the working cylinder being located at the top of pneumatic hammer rack (1)
And the first chopping block (3) for being fixed on pneumatic hammer rack (1) pedestal (2),；Piston (4) are equipped in the working cylinder (2),
The inner wall of the piston (4) and working cylinder (2) fits closely and is connected with tup (6) by hammer stem (5)；The hammer stem (5)
On be also arranged with guide pipe (8), one end of the guide pipe (8) is connect with piston (4), and the other end is connect with tup (6)；It is described
It is equipped with inside working cylinder (2) and is fixed in the internal annular convex platform (9) of working cylinder (2)；The other end of the guide pipe (8) passes through
Annular convex platform (9) is worn to connect with one end of tup (6)；The annular convex platform (9) passes through the first damping spring (10) and tup (6)
One end connection；The other end of the tup (6) is also connected with the second chopping block (7), and second chopping block (7) is located at the first chopping block
(3) surface.
2. a kind of pneumatic hammer according to claim 1, it is characterised in that: the inside of the guide pipe (8) is sliding equipped with hammer stem
Dynamic channel, the inner wall edge of the hammer stem sliding channel are uniformly provided with along center position and multiple contact with hammer stem (5) surface
Strip projected parts (17) are coated with wearing layer (18) on guide pipe (8) inner wall and strip projected parts (17).
3. a kind of pneumatic hammer according to claim 1, it is characterised in that: the annular convex platform (9) includes inverted T shaped convex annular
Platform；One end of first damping spring (10) and inverted T shaped annular convex platform are affixed, the other end be set on tup (6) and with hammer
One end of head (6) is affixed.
4. a kind of pneumatic hammer according to claim 1 or 3, it is characterised in that: second chopping block (7) is set in tup
(6) it the other end and is detachably connected with tup (6), the top of second chopping block (7) is equipped with retention bead (19), the hammer
The other end of head (6) is equipped with limiting groove, and second chopping block (7) is connected to the another of tup (6) by retention bead (19)
End.
5. a kind of pneumatic hammer according to claim 1, it is characterised in that: offered on first chopping block (3) and second
The compatible groove (12) of chopping block (7) structure.
6. a kind of pneumatic hammer according to claim 1 or 2, it is characterised in that: the working cylinder (2) is close to tup (6)
One end and tup (6) connect by connecting flange (11), offer on the connecting flange (11) and lead to for accommodating tup (6)
The through-hole crossed, institute's through-hole is interior to be coated with wearing layer.
7. a kind of pneumatic hammer according to claim 1, it is characterised in that: pneumatic hammer rack (1) bottom, which is additionally provided with, to be subtracted
Shake device.
8. a kind of pneumatic hammer according to claim 7, it is characterised in that: the damping device includes rigid hollow frame knot
The top of structure (13), the rigid hollow frame structure (13) uses spring steel plate (14), the bottom of the spring steel plate (14)
It is connected with U-shaped flexible cushion (15), offers accommodating chamber in the U-shaped flexible cushion (15), the is fixed in the accommodating chamber
Two damping springs (16), there are gaps between second damping spring (16) and spring steel plate (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822056206.2U CN209491285U (en) | 2018-12-09 | 2018-12-09 | A kind of pneumatic hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822056206.2U CN209491285U (en) | 2018-12-09 | 2018-12-09 | A kind of pneumatic hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209491285U true CN209491285U (en) | 2019-10-15 |
Family
ID=68152626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822056206.2U Expired - Fee Related CN209491285U (en) | 2018-12-09 | 2018-12-09 | A kind of pneumatic hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209491285U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112872266A (en) * | 2021-02-26 | 2021-06-01 | 深圳柏树莱科技有限公司 | Air hammer equipment capable of replacing wearing part and processing common faults of piston |
| CN113618001A (en) * | 2021-03-02 | 2021-11-09 | 天津重型装备工程研究有限公司 | External forging elastic box and external forging auxiliary tool |
-
2018
- 2018-12-09 CN CN201822056206.2U patent/CN209491285U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112872266A (en) * | 2021-02-26 | 2021-06-01 | 深圳柏树莱科技有限公司 | Air hammer equipment capable of replacing wearing part and processing common faults of piston |
| CN112872266B (en) * | 2021-02-26 | 2022-10-28 | 徐州新大隆化工泵业制造有限公司 | Air hammer equipment with function of replacing wearing part and capable of processing common faults of piston |
| CN113618001A (en) * | 2021-03-02 | 2021-11-09 | 天津重型装备工程研究有限公司 | External forging elastic box and external forging auxiliary tool |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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| CF01 | Termination of patent right due to non-payment of annual fee |