CN221072805U - Locking structure of hydraulic breaking hammer bushing - Google Patents
Locking structure of hydraulic breaking hammer bushing Download PDFInfo
- Publication number
- CN221072805U CN221072805U CN202322649200.7U CN202322649200U CN221072805U CN 221072805 U CN221072805 U CN 221072805U CN 202322649200 U CN202322649200 U CN 202322649200U CN 221072805 U CN221072805 U CN 221072805U
- Authority
- CN
- China
- Prior art keywords
- pin
- drill rod
- retaining
- bushing
- shell
- 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
- 208000017740 grade III prostatic intraepithelial neoplasia Diseases 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model relates to a locking structure of a hydraulic breaking hammer bushing, which comprises a shell, a front end bushing, a drill rod, a retaining pin III, a rubber plug III and an elastic cylindrical pin, wherein the drill rod is installed on the shell through the front end bushing, the lower end of the drill rod extends out of the lower end of the shell, the side wall of the front end bushing is provided with the pit, the retaining pin III is inserted into the shell, the retaining pin III is clamped on the pit of the front end bushing, the end part of the retaining pin III is provided with the rubber plug III, the elastic cylindrical pin is inserted on the shell, and the side wall of the elastic cylindrical pin abuts against the end part of the rubber plug III. The side wall of the elastic cylindrical pin is abutted against the end part of the rubber plug III, so that the rubber plug III and the retaining pin are locked in the triaxial direction, the locking reliability is greatly improved, special tools such as clamp spring pliers are not needed in the dismounting process, and the dismounting convenience is improved.
Description
Technical Field
The utility model relates to the technical field of bushing locking, in particular to a locking structure of a hydraulic breaking hammer bushing.
Background
The hydraulic breaking hammer is an important working tool of the hydraulic excavator, the hydraulic breaking hammer is arranged on the excavating loader or the wheel loader and comprises a piston and a drill rod positioned below the piston, and when the piston moves downwards, the drill rod is driven to move downwards to carry out breaking operation.
Chinese patent CN202020706996.9 discloses a bushing for a drill rod of a hydraulic breaking hammer and a breaking hammer, the breaking hammer further comprises a rear housing, a cylinder, a piston and a housing, the rear housing, the cylinder and the housing are sequentially arranged from top to bottom and are connected through a through bolt, the piston is arranged in the cylinder and is positioned at the upper end of the drill rod to drive the drill rod to move downwards, the drill rod is arranged in the housing through the circular bushing and/or the front bushing, and the lower end of the drill rod extends out of the lower end of the housing; also included is a backstop pin that is capable of passing through a groove on the circular bushing and/or front end bushing. In order to avoid the back-off pin from falling out, a rubber plug and an elastic check ring are generally arranged at the end part of the back-off pin, and the back-off pin is locked through the elastic check ring. When the breaking hammer works, the impact force is larger, the elastic retainer ring is damaged, so that the locking failure is caused, the retaining pin falls off, the locking effect on the front end bushing cannot be realized, in addition, when the front end bushing is replaced, a special tool, namely a clamp spring clamp, is required to detach the elastic retainer ring, and the retaining pin is inconvenient to detach.
Disclosure of utility model
The utility model provides a locking structure of a hydraulic breaking hammer bushing aiming at the prior art.
The technical scheme for solving the technical problems is as follows: the utility model provides a locking structure of hydraulic breaking hammer bush, includes casing, front end bush and drill rod, the drill rod passes through front end bush is installed on the casing, the lower extreme of drill rod stretches out the lower extreme of casing, be equipped with the pit on the lateral wall of front end bush, still include stopping round pin three, rubber buffer three and elasticity cylindric lock, stopping round pin three cartridge is in just stopping round pin three joint is in on the pit of front end bush, stopping round pin three's tip is equipped with the rubber buffer three, elasticity cylindric lock cartridge is in on the casing, the lateral wall of elasticity cylindric lock with the tip of rubber buffer three offsets.
On the basis of the technical scheme, the utility model can also make the following improvements for the technical scheme in order to achieve the convenience of use and the stability of equipment:
preferably, the shell is provided with a through hole and two blind holes, the through hole is vertically communicated with the two blind holes, the two blind holes are positioned at two sides of the front end bushing, the three retaining pins are inserted into the two blind holes, and the elastic cylindrical pins are inserted into two ends of the through hole.
Preferably, the drill rod further comprises a drill rod pin, a second retaining pin and a second rubber plug, wherein a groove is formed in the side wall of the drill rod, the drill rod pin is inserted into the shell, the drill rod pin is clamped on the groove, the second retaining pin is inserted into the shell, the side wall of the second retaining pin is vertically abutted to the end part of the drill rod pin, and the second rubber plug is located at the end part of the second retaining pin.
Preferably, the section of the drill rod pin is elliptical, two drill rod pins are arranged, one drill rod pin is positioned on one side of the drill rod, and the other drill rod pin is positioned on the other side of the drill rod.
Preferably, the anti-slip device further comprises a circular bushing, a first anti-slip pin and a first rubber plug, wherein the circular bushing and the front end bushing are coaxially arranged, the circular bushing is positioned above the front end bushing, the first anti-slip pin is inserted into the shell, the side wall of the first anti-slip pin abuts against the end part of the circular bushing, and the first rubber plug is arranged at the end part of the first anti-slip pin.
The beneficial effects of the utility model are as follows: the side wall of the elastic cylindrical pin is abutted against the end part of the rubber plug III, so that the rubber plug III and the retaining pin are locked in the triaxial direction, the locking reliability is greatly improved, special tools such as clamp spring pliers are not needed in the dismounting process, and the dismounting convenience is improved.
Drawings
FIG. 1 is a schematic view of a locking mechanism of the present utility model;
FIG. 2 is a schematic cross-sectional view of a locking structure of the present utility model;
fig. 3 is a schematic cross-sectional view of the elastic cylindrical pin and the stop pin III of the present utility model.
Reference numerals: 1. a housing; 2. a circular bushing; 3. a front end bushing; 4. a drill rod pin; 5. a first stop pin; 6. a first rubber plug; 7. a second stop pin; 8. a second rubber plug; 9. a stop pin III; 10. a third rubber plug; 11. an elastic cylindrical pin; 12. a drill rod; 13. and a nipple.
Detailed Description
In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or component to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.
As shown in fig. 1 to 3, the utility model discloses a locking structure of a hydraulic breaking hammer bushing, which comprises a shell 1, a front end bushing 3 and a drill rod 12, wherein the drill rod 12 is installed on the shell 1 through the front end bushing 3, the lower end of the drill rod 12 extends out of the lower end of the shell 1, a glib talker 13 for adding lubricating oil is arranged on the shell 1, a pit is arranged on the side wall of the front end bushing 3, the locking structure further comprises a three retaining pin 9, a three rubber plug 10 and an elastic cylindrical pin 11, the three retaining pin 9 is inserted in the shell 1, the three retaining pin 9 is clamped on the pit of the front end bushing 3, the three rubber plug 10 is arranged at the end of the three retaining pin 9, the elastic cylindrical pin 11 is inserted on the shell 1, the side wall of the elastic cylindrical pin 11 abuts against the end of the three rubber plug 10, namely, the axis of the elastic cylindrical pin 11 is perpendicular to the axis of the three retaining pin 9, the three retaining pins 9 are improved in a vertical manner, the three retaining pins 9 are prevented from directly contacting with the three retaining pins 9, and simultaneously, the three retaining pins are prevented from directly contacting with the three retaining pins 9, and the three retaining pins are prevented from being directly contacting with the three retaining pins 9, and the three retaining pins are prevented from directly contacting with the three retaining pins 9.
The novel anti-slip locking device is characterized in that a through hole and two blind holes are formed in the shell 1 and are vertically communicated with two blind holes, the two blind holes are formed in two sides of the front end bushing 3, two corresponding pits are formed in the front end bushing 3, the three anti-slip pins 9 are inserted into the blind holes, the three elastic cylindrical pins 11 are inserted into two ends of the through hole, one elastic cylindrical pin 11 locks the three anti-slip pins 9, and locking effect is guaranteed.
Further, the tip of elasticity cylindric lock 11 can stretch out casing 1 a section length, and when long-time use, elasticity cylindric lock 11 can outwards remove, and after observing that elasticity cylindric lock 11 pops out on the excavator, can in time reset it, guarantees the locking effect to stopping round pin three 9.
The locking structure further comprises a drill rod pin 4, a second retaining pin 7 and a second rubber plug 8, wherein a groove is formed in the side wall of the drill rod 12, the drill rod pin 4 is inserted into the shell 1, the drill rod pin 4 is clamped on the groove, the drill rod 12 is locked through the drill rod pin 4, the drill rod 12 can be guaranteed to be normally broken, the second retaining pin 7 is vertically inserted into the shell 1, the side wall of the second retaining pin 7 is vertically abutted to the end part of the drill rod pin 4, the drill rod pin 4 is locked through the second retaining pin 7, the drill rod pin 4 is prevented from being separated from the shell 1, the installation firmness of the drill rod pin 4 is guaranteed, the second rubber plug 8 is located at the end part of the second retaining pin 7, the second retaining pin 7 is prevented from being separated from the shell 1, and meanwhile the second rubber plug 8 has the function of absorbing vibration.
Further, the section of the drill rod pin 4 is elliptical, two drill rod pins 4 are arranged, one drill rod pin 4 is located on one side of the drill rod 12, the other drill rod pin 4 is located on the other side of the drill rod 12, two corresponding grooves are formed in the drill rod 12, and the contact area between the drill rod pin 4 and the drill rod 12 can be increased by the aid of the drill rod pin 4 with an elliptical structure, so that locking strength and locking effect are improved.
The locking structure further comprises a circular bushing 2, a first retaining pin 5 and a first rubber plug 6, wherein the circular bushing 2 and the front end bushing 3 are coaxially arranged, the circular bushing 2 is located above the front end bushing 3, the first retaining pin 5 is inserted into the shell 1, the side wall of the first retaining pin 5 abuts against the end part of the circular bushing 2, and the end part of the first retaining pin 5 is provided with the first rubber plug 6. Through setting up circular bush 2 and front end bush 3 between casing 1 and drill rod 12, can reduce drill rod 12 and cause the damage to casing 1 in the course of the work, improve casing 1's life, simultaneously, when circular bush 2 or front end bush 3 appear damaging, only need change circular bush 2 or front end bush 3 and need not to change casing 1, not only can prolong the life of quartering hammer, simultaneously, practice thrift after-market cost.
Further, the vibration of the circular bushing 2 is smaller relative to the front bushing 3, and the internal thread is arranged at the position of the shell 1 where the first rubber plug 6 is located, so that the friction force between the first rubber plug 6 and the shell 1 is increased, the possibility that the first rubber plug 6 is separated from the shell 1 is reduced, and the locking effect of the circular bushing 2 is ensured.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.
Claims (5)
1. The utility model provides a locking structure of hydraulic breaking hammer bush, includes casing (1), front end bush (3) and drill rod (12), drill rod (12) pass through front end bush (3) are installed on casing (1), the lower extreme of drill rod (12) stretches out the lower extreme of casing (1), be equipped with the pit on the lateral wall of front end bush (3), its characterized in that still includes retaining round pin three (9), rubber stopper three (10) and elasticity cylindric lock (11), retaining round pin three (9) cartridge is in casing (1) just retaining round pin three (9) joint is in on the pit of front end bush (3), the tip of retaining round pin three (9) is equipped with rubber stopper three (10), elasticity cylindric lock (11) cartridge is in on casing (1), the axis of elasticity cylindric lock (11) with the axis of retaining round pin three (9) is perpendicular, the lateral wall of elasticity cylindric lock (11) with the tip of rubber stopper three (10).
2. The locking structure according to claim 1, wherein the housing (1) is provided with a through hole and two blind holes, the through hole is vertically communicated with the two blind holes, the two blind holes are positioned at two sides of the front end bushing (3), the retaining pin three (9) is inserted into the two blind holes, and the elastic cylindrical pins (11) are inserted into two ends of the through hole.
3. The locking structure according to claim 1 or 2, further comprising a drill rod pin (4), a second retaining pin (7) and a second rubber plug (8), wherein a groove is formed in the side wall of the drill rod (12), the drill rod pin (4) is inserted into the shell (1) and the drill rod pin (4) is clamped on the groove, the second retaining pin (7) is inserted into the shell (1), the side wall of the second retaining pin (7) is vertically abutted with the end part of the drill rod pin (4), and the second rubber plug (8) is positioned at the end part of the second retaining pin (7).
4. A locking arrangement according to claim 3, characterized in that the drill rod pins (4) are oval in cross section, two drill rod pins (4) being provided, one drill rod pin (4) being located on one side of the drill rod (12) and the other drill rod pin (4) being located on the other side of the drill rod (12).
5. The locking structure according to claim 1, further comprising a circular bushing (2), a first retaining pin (5) and a first rubber stopper (6), wherein the circular bushing (2) and the front bushing (3) are coaxially arranged, the circular bushing (2) is located above the front bushing (3), the first retaining pin (5) is inserted into the housing (1), the side wall of the first retaining pin (5) abuts against the end of the circular bushing (2), and the first rubber stopper (6) is arranged at the end of the first retaining pin (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322649200.7U CN221072805U (en) | 2023-09-28 | 2023-09-28 | Locking structure of hydraulic breaking hammer bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322649200.7U CN221072805U (en) | 2023-09-28 | 2023-09-28 | Locking structure of hydraulic breaking hammer bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221072805U true CN221072805U (en) | 2024-06-04 |
Family
ID=91266599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322649200.7U Active CN221072805U (en) | 2023-09-28 | 2023-09-28 | Locking structure of hydraulic breaking hammer bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221072805U (en) |
-
2023
- 2023-09-28 CN CN202322649200.7U patent/CN221072805U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207144865U (en) | A kind of airborne hydraulic drilling rod for drilling machine clamper | |
| CN108655710B (en) | Pneumatic installation equipment with buffer device for assembling valve rubber | |
| CN221072805U (en) | Locking structure of hydraulic breaking hammer bushing | |
| CN102817567A (en) | Underground repetitive shock irritation device and shock irritation method for oil and gas well drilling | |
| CN106884626B (en) | Double-barrelled drilling tool positioning mechanism of dead formula of preventing top | |
| CN210977329U (en) | Safety joint | |
| CN211028195U (en) | Step borer | |
| CN115370295B (en) | PDC drill bit shocks resistance with buffering shock-absorbing function | |
| CN111450921B (en) | Hydraulic breaking hammer mechanism adopting bolt positioning block | |
| CN210528258U (en) | Highly reliable lifting device for maintaining diesel engine main engine piston | |
| CN212052958U (en) | Hydraulic breaking hammer is bush and quartering hammer for drill rod | |
| CN212337264U (en) | Five-claw positioning hanger for well logging | |
| CN210714556U (en) | Anchor is salvaged to slider formula | |
| CN211648053U (en) | Rope coring drilling tool suitable for large-caliber geological drilling | |
| CN214577326U (en) | Shock attenuation anti-disengaging mechanism of automobile exhaust monitoring facilities | |
| CN213898917U (en) | Drill bit catching device for mine drilling | |
| CN218912821U (en) | Flexible drilling tool | |
| CN113565153B (en) | Reamer head mechanism | |
| CN220179231U (en) | Device for pulling out expansion spring sleeve of rocker arm hinge pin of coal mining machine | |
| CN217106808U (en) | Impactor | |
| CN220261279U (en) | Positioning device for automotive interior water cutting die | |
| CN212898396U (en) | Hydraulic spring double-cylinder bidirectional jarring accelerator | |
| CN212898341U (en) | Mining rig adapter | |
| CN217602644U (en) | Simple joint for detecting inner wall of sleeve | |
| CN111853027B (en) | Anti-tripping bolt for while-drilling tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |