CN212154660U - Front connector and outer sleeve end face soft phase isolation structure and impactor thereof - Google Patents
Front connector and outer sleeve end face soft phase isolation structure and impactor thereof Download PDFInfo
- Publication number
- CN212154660U CN212154660U CN202020616390.6U CN202020616390U CN212154660U CN 212154660 U CN212154660 U CN 212154660U CN 202020616390 U CN202020616390 U CN 202020616390U CN 212154660 U CN212154660 U CN 212154660U
- Authority
- CN
- China
- Prior art keywords
- outer sleeve
- gasket
- front joint
- isolation structure
- hardness
- 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.)
- Active
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model provides a preceding joint and outer tube terminal surface soft looks isolation structure and impacter thereof, this structure include the outer tube, and outer tube one end is passed through the screw thread pair and is connected with the preceding joint, and the preceding joint is connected with the drill bit, be equipped with the gasket between preceding joint and the outer tube, the hardness of gasket is less than the hardness of outer tube. By adopting the structure, the hardening of the end surface of the outer sleeve is avoided, the formation of the seamed edge is delayed, and the service life of the components of the impactor is prolonged.
Description
Technical Field
The utility model belongs to impacter equipment field, in particular to preceding joint and outer tube terminal surface soft looks isolation structure and impacter thereof.
Background
The outer sleeve of the impactor is a cylinder structural workpiece, and the inside of the outer sleeve is provided with an impact piston and other parts to form a valve mechanism. The piston is capable of reciprocating within the impactor as it operates. One end of the outer sleeve is connected with the front joint through a thread pair so as to drive the front joint and the drill bit to rotate; the other end is connected with the rear joint through a thread pair, and the rear joint is provided with a thread connected drill rod. Finally, the drill bit, the front joint, the outer sleeve and the rear joint can rotate together with the drill rod during working.
The outer sleeve mainly bears the downward axial pressure, the rotating torque, the bending moment, the axial impact load and the like of the drilling machine in the working process, and the stress is complex.
In the working process, the reciprocating motion of the impactor piston does work on the drill bit to generate downward impact force F1, so that the drill bit contacts with rocks to complete rock breaking, and in the process, certain axial impact load exists between the end face A1 of the neck of the drill bit and the end face A2 of the front joint, so that the end face A1 of the drill bit 1, the end face A2 of the front joint 2 and the end face A2 'of the outer sleeve 3 bear impact forces F1, F2 and F2' respectively, as shown in FIG. 1. End face impact loading can cause deformation of the impact end face to form edges and can also cause the end face to become hard-faced. The concentrated stress at the edges, in combination with the impact load, often results in cracking of the end face of the outer sleeve.
Disclosure of Invention
The utility model aims to solve the technical problem that a soft looks isolation structure of joint and outer tube terminal surface before dashing and impacter thereof are provided, the sclerosis of outer tube terminal surface has been avoided, the formation of edge has been delayed, improves impacter part life-span.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: a soft phase isolation structure of a front joint and the end face of an outer sleeve comprises the outer sleeve, one end of the outer sleeve is connected with the front joint, the front joint is connected with a drill bit, a gasket is arranged between the front joint and the outer sleeve, and the hardness of the gasket is lower than that of the outer sleeve.
Preferably, the gasket has a hardness lower than that of the front joint.
In a preferable scheme, the hardness of the gasket is 5-20 HRC less than that of the outer sleeve.
In a preferable scheme, the hardness of the gasket is 5-20 HRC lower than that of the front joint.
The utility model also provides an impacter, including above-mentioned arbitrary preceding joint and the soft looks isolation structure of outer tube terminal surface.
The utility model provides a pair of soft looks isolation structure of impacter front connector and outer tube terminal surface and impacter thereof adopts the gasket of relative soft looks to absorb the axial impact force, has effectively avoided the sclerosis of outer tube and front connector terminal surface, has delayed the formation of edge to reach the effect that increases the impacter part life-span.
Drawings
The invention will be further explained with reference to the following figures and examples:
FIG. 1 is a force diagram of the prior art;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic view of the structure at A in FIG. 2;
FIG. 4 is a schematic view of the configuration of the impactor;
in the figure: the drilling tool comprises a drilling head 1, a front joint 2, an outer sleeve 3, a gasket 4 and a rear joint 5.
Detailed Description
Example 1: as shown in fig. 2 to 3, a soft phase isolation structure for an end face of a front joint and an outer sleeve comprises an outer sleeve 3, one end of the outer sleeve 3 is connected with the front joint 2 through a thread pair, the front joint 2 is connected with a drill bit 1, a gasket 4 is arranged between the front joint 2 and the outer sleeve 3, and the hardness of the gasket 4 is lower than that of the outer sleeve 3.
Along with the screwing of the screw thread, the end surface of the outer sleeve 3 is jointed with the upper end surface of the gasket 4, and the lower end surface of the gasket 4 is jointed with the upper end surface of the front joint 2, thereby forming a whole. Because the hardness of the gasket 4 is lower than that of the outer sleeve 3, a relatively soft phase is formed, and the end face of the front joint 2 is prevented from directly impacting the end face of the outer sleeve 3, so that the end face of the outer sleeve 3 is prevented from being hardened after being impacted and the edge is prevented from generating.
Preferably, the hardness of the gasket 4 is lower than that of the front joint 2. The function of simultaneously protecting the end faces of the front joint 2 and the outer sleeve 3 is achieved.
Preferably, the hardness of the gasket 4 is 5 to 20HRC less than the hardness of the outer sleeve 3 and the front joint 2.
The gasket with the hardness within the range can play a role in buffering, and can prevent the hardness of the end face from rising to cause failure after early impact fatigue caused by too low hardness, so that the aim of buffering cannot be fulfilled.
Example 2: the impactor adopting the soft phase isolation structure of the front joint and the end face of the outer sleeve comprises an outer sleeve 3, wherein one end of the outer sleeve 3 is connected with the front joint 2 through a thread pair, the front joint 2 is connected with a drill bit 1, the other end of the outer sleeve 3 is connected with a rear joint 5 through a thread pair, the rear joint 5 is used for being connected with a drill rod, a gas distribution mechanism is arranged in the outer sleeve 3, a gasket 4 is arranged between the front joint 2 and the outer sleeve 3, and the hardness of the gasket 4 is lower than that of the outer sleeve 3.
The axial impact force is absorbed by adopting the relatively soft-phase gasket, so that the end face of the outer sleeve (and the front joint) is effectively prevented from being hardened, and the formation of edges is delayed, thereby achieving the effect of prolonging the service life of the impactor.
Claims (5)
1. A soft phase isolation structure of a front joint and an end face of an outer sleeve comprises the outer sleeve (3), one end of the outer sleeve (3) is connected with the front joint (2), the front joint (2) is connected with a drill bit (1), and the soft phase isolation structure is characterized in that a gasket (4) is arranged between the front joint (2) and the outer sleeve (3), and the hardness of the gasket (4) is lower than that of the outer sleeve (3).
2. A soft phase isolation structure of the front joint and the end face of the outer sleeve according to claim 1, characterized in that the hardness of the gasket (4) is lower than that of the front joint (2).
3. The structure of claim 1, wherein the gasket (4) has a hardness 5-20 HRC less than that of the outer sleeve (3).
4. The soft phase isolation structure of the front joint and the end face of the outer sleeve according to claim 2, wherein the hardness of the gasket (4) is 5-20 HRC less than that of the front joint (2).
5. An impactor, characterized by comprising a soft phase isolation structure of the front joint and the end surface of the outer sleeve according to any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020616390.6U CN212154660U (en) | 2020-04-22 | 2020-04-22 | Front connector and outer sleeve end face soft phase isolation structure and impactor thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020616390.6U CN212154660U (en) | 2020-04-22 | 2020-04-22 | Front connector and outer sleeve end face soft phase isolation structure and impactor thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212154660U true CN212154660U (en) | 2020-12-15 |
Family
ID=73722971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020616390.6U Active CN212154660U (en) | 2020-04-22 | 2020-04-22 | Front connector and outer sleeve end face soft phase isolation structure and impactor thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212154660U (en) |
-
2020
- 2020-04-22 CN CN202020616390.6U patent/CN212154660U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212154660U (en) | Front connector and outer sleeve end face soft phase isolation structure and impactor thereof | |
| JP4636294B1 (en) | Crushing method and crushing device | |
| CN103410439B (en) | The hammer drill of rubber corselet shoulder type six side drill steel can be cooled | |
| CN218150762U (en) | Impactor | |
| CN201915856U (en) | Drill rod and drill bit structure for rock drilling machine | |
| CN213805579U (en) | Cylinder body supporting assembly of hydraulic breaking hammer | |
| CN216589387U (en) | Middle cylinder assembly of hydraulic breaking hammer | |
| CN210637048U (en) | Impacter outer sleeve | |
| CN201384964Y (en) | Hydraulic cylinder used for breaking hammer | |
| CN210147980U (en) | Connecting structure of electric pick front barrel and gear box | |
| CN203515312U (en) | Jackdrill with hexagonal drill rod with rubber coakeslet shank collar capable of being cooled | |
| CN219682706U (en) | Hammer rod and hammer body mechanism capable of preventing stress concentration | |
| CN219702167U (en) | Heavy breaking hammer with buffer gear | |
| CN2688815Y (en) | Hydraulic breaking hammer for engineering vehicle | |
| CN102493515B (en) | Structure of hydraulic breaker drill rod, and method for embedding alloy drill bit of hydraulic breaker drill rod | |
| CN218843222U (en) | Flat pin buffer device of lower cylinder of breaking hammer | |
| CN111980023A (en) | Self-locking structure of impact hammer for preventing impact tool from no-load impact | |
| CN204628538U (en) | Split type Wear-resisting piston rod | |
| CN219622627U (en) | Buffering system of hydraulic rock drill without one-way valve | |
| CN209440103U (en) | A kind of furred ceiling nailing device | |
| CN2207918Y (en) | Welding slag knocking hammer | |
| CN217439975U (en) | Drill rod protective sleeve, protective assembly and drill rod assembly applied to rock drill | |
| CN220686178U (en) | Novel fastening type breaking hammer through bolt assembly | |
| CN217095845U (en) | Furnace front opening drill rod with reusable tail rod | |
| CN220645865U (en) | Drilling buffer device for coal bed exploration |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |