CN111424742A - Anti-impact damping device of bucket door of excavator bucket - Google Patents
Anti-impact damping device of bucket door of excavator bucket Download PDFInfo
- Publication number
- CN111424742A CN111424742A CN202010266647.4A CN202010266647A CN111424742A CN 111424742 A CN111424742 A CN 111424742A CN 202010266647 A CN202010266647 A CN 202010266647A CN 111424742 A CN111424742 A CN 111424742A
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- bucket
- shaft sleeve
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- 238000013016 damping Methods 0.000 title claims abstract description 46
- 238000005192 partition Methods 0.000 claims abstract description 40
- 230000000903 blocking effect Effects 0.000 claims abstract description 20
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000035939 shock Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract 1
- 230000005484 gravity Effects 0.000 description 4
- 230000007774 longterm Effects 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 208000033999 Device damage Diseases 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
- E02F3/401—Buckets or forks comprising, for example, shock absorbers, supports or load striking scrapers to prevent overload
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
- E02F3/407—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with ejecting or other unloading device
- E02F3/4075—Dump doors; Control thereof
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/46—Dredgers; Soil-shifting machines mechanically-driven with reciprocating digging or scraping elements moved by cables or hoisting ropes ; Drives or control devices therefor
- E02F3/58—Component parts
- E02F3/60—Buckets, scrapers, or other digging elements
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Shovels (AREA)
Abstract
The invention discloses an anti-impact damping device of a bucket gate of an excavator, which comprises a bucket gate pin, a bucket body pin, a base and a damping component, wherein the base is arranged on a bucket body on one side of a pin shaft; the damping assembly comprises a shaft sleeve, a first partition plate, a second partition plate, a friction plate, a thick bolt shaft, a spring and a blocking sleeve, wherein one end of the shaft sleeve is arranged in an installation hole of the base; the first separator plate, the second separator plate and the friction plate are sleeved on the shaft sleeve, and the friction plate is arranged between the first separator plate and the second separator plate; one ends of the first partition plate and the second partition plate, which are far away from the shaft sleeve, are fixedly connected with the bucket door pin and the bucket body pin respectively; one end of the thick bolt shaft extends into the shaft sleeve to form a gap with the base; the thick bolt shaft is sleeved with a spring which is in a compressed state; the first separator, the second separator and the friction plate are tightly pressed between the base and the retaining sleeve, and the retaining sleeve is locked by the nut. The impact force of the hopper door on the hopper body is relieved by the device; it has small volume and is not easy to damage; when the friction plate is worn, the spring can eliminate the gap between the friction plate and the partition plate, so that the friction plate and the partition plate keep normal pressure.
Description
Technical Field
The invention relates to the field of excavators, in particular to an anti-impact damping device for a bucket door of an excavator.
Background
Rope shovels typically utilize a bucket, having a dipper door rotatably connected to a dipper body by a door shaft, disposed on a bottom surface of the bucket for digging into a pile of material. After filling full bucket, the operator is fixed a position the bucket in loading vehicle top (the position of unloading), and the back is opened to the bolt mechanism of bucket bottom, and the material falls because of self gravity in the fill, makes the dipper door along the door-hinge downwards, keeps away from the direction swing of the dipper body promptly, and then opens, unloads. After the material is unloaded, the operator moves the bucket to an initial position (the material shoveling position), and the bucket door closes the latch mechanism under the action of the self gravity and automatically resets. One or more link-driven or hydraulically-driven damping devices are typically mounted between the dipper door and the dipper body to dampen the impact of the rotating motion on the door.
The damping device of above-mentioned structure is bulky, and when the dipper door was opened, the damping device was pounded easily to the material of fighting interior or fighting along the whereabouts, made damping device damage, and the door-hinge received the impact when the dipper door was opened simultaneously, and the door-hinge damaged easily. Similarly, when the hopper door is closed, the hopper door and the hopper body are impacted under the action of gravity, and the door shaft is impacted. Under long-term high frequency impact load, the hopper door is easy to crack, and the connecting rod mechanism has the possibility of failure due to bending by a smashing mode, so that the potential safety hazard exists, the normal use is influenced, and the maintenance is inconvenient.
Disclosure of Invention
The invention aims to provide an anti-impact damping device of a bucket door of an excavator, which has small volume, reliable operation and convenient maintenance.
Therefore, the technical scheme of the invention is as follows:
an anti-impact damping device of a bucket door of an excavator bucket, wherein the excavator bucket comprises a bucket body and a bucket door, the bucket door is hinged with a pin shaft on the bucket body through a bent beam, the anti-impact damping device is at least installed on one side of the pin shaft, the anti-impact damping device comprises a bucket door pin, a bucket body pin, a base and a damping component, the bucket door pin is fixedly installed on the bent beam through a support, the bucket body pin is fixedly installed on the bucket body, and the bucket door pin, the bucket body pin and the pin shaft are parallel to each other; the base is arranged on the bucket body on one side of the pin shaft and used for mounting the damping assembly, and a mounting hole is formed in the base; the damping subassembly includes axle sleeve, first baffle, second baffle, friction disc, thick bolt axle, spring and spacer sleeve, wherein: the shaft sleeve is in a circular tube shape, one end of the shaft sleeve extends into the mounting hole of the base, and the shaft sleeve is fixedly installed on the base and coaxial with the pin shaft; the first partition plate, the second partition plate and the friction plate are sleeved on the shaft sleeve and can rotate relative to the shaft sleeve, and the friction plate is arranged between the first partition plate and the second partition plate; one end of the first partition board, which is far away from the shaft sleeve, is fixedly connected with the bucket door pin; one end, far away from the shaft sleeve, of the second partition plate is fixedly connected with the bucket body pin; the thick bolt shaft and the pin shaft are coaxially arranged, one end of the thick bolt shaft extends into the shaft sleeve, and a gap is formed between the thick bolt shaft and the base; the spring is sleeved on the thick bolt shaft, one end of the spring, which is close to the base, is restrained by a fixing pin, and the other end of the spring is restrained by a stopper and is in a compressed state; the blocking piece is fixedly connected with the shaft sleeve, and when a gap is formed between the first separator plate, the second separator plate and the friction plate, the thick bolt shaft can move towards the direction close to the base relative to the blocking piece; the blocking sleeve is provided with a cylindrical cover body, a through hole is formed in the center of the cover body and is sleeved on the thick bolt shaft, the cylindrical cover body is sleeved on the shaft sleeve, and the cylindrical cover body and the shaft sleeve can slide relatively; the outer peripheral surface of the cylindrical cover body extends along the radial direction to form a pressing plate, and the outer side of the blocking sleeve is locked by a nut; the first separator plate, the friction plate and the second separator plate are compressed between the base and the pressure plate.
Preferably, the first separator plate and the second separator plate are overlapped to form a plurality of separator plates, and a friction plate is arranged between each adjacent first separator plate and each adjacent second separator plate. In one embodiment of the present invention, the first partition is provided in two, and the second partition is provided in three.
According to an embodiment of the present invention, the stopper is a ring, the thick bolt shaft passes through the ring, and an outer edge of the ring is fixedly connected with the shaft sleeve.
According to another embodiment of the present invention, the stopper is a stop pin, the thick bolt shaft is formed with a long and narrow through hole, the stop pin passes through the long and narrow through hole, and both ends of the stop pin are fixedly connected with the shaft sleeve.
The base includes annular bottom plate, bedplate and mounting panel, wherein: the bottom plate is sleeved on the pin shaft and fixedly mounted with the bucket body, and the inner diameter of the bottom plate is larger than the outer diameter of the pin shaft; the inner diameter of the seat plate is larger than the outer diameter of the shaft sleeve, and the seat plate is fixedly arranged on the bottom plate; the inner diameter of the mounting plate is matched with the outer diameter of the shaft sleeve, and the shaft sleeve is fixedly connected with the seat plate.
Preferably, the base further comprises a flat key, the flat key is mounted on the seat plate, a gap is formed between the flat key and the end of the thick bolt shaft, and the flat key is used for separating the pin shaft and the thick bolt shaft.
Preferably, U-shaped gaps are formed in the ends, far away from the thick bolt shaft, of the first partition plate and the second partition plate, and are respectively sleeved on the bucket door pin and the bucket body pin and fixedly connected with the bucket door pin and the bucket body pin.
In one embodiment of the invention, the bucket body pin is fixed on the bucket body through a fixing bolt and a locking nut, the fixing bolt is used for fixing one side of a mounting plate of the bucket body, a screw rod of the fixing bolt extends out of the other side of the mounting plate, and the bucket body pin is in threaded connection with the screw rod and is locked by the locking nut.
The invention has the following beneficial effects:
1. compared with the existing connecting rod or hydraulic driving damping device, the damping device has smaller volume, and the end cover also plays a role in protection, so the damping device is not easy to damage and can reliably operate for a long time.
2. After the material was unloaded, the scraper bowl removed initial position, and the dipper door is at the dead weight effect whereabouts to the dipper body, because baffle and ring type friction disc have frictional force to slowed down the impact force of dipper door to the dipper body, the dipper door can steadily be closed.
3. The damping device can compensate the clearance generated by the abrasion of the friction plate by the tension of the spring when the friction plate is abraded after long-term use, thereby maintaining the normal pressure between the friction plate and the clapboard and ensuring that the bucket door is prevented from being impacted when being opened and closed.
4. The damping device provided by the invention is more reliable in operation, is not easy to break down and is convenient to maintain.
Drawings
FIG. 1 is a schematic structural view of a mining excavator bucket with the damping apparatus of the present invention;
FIG. 2 is a partially enlarged schematic view of a damper device according to an embodiment of the present invention;
fig. 3 is a schematic sectional view a-a of the damper device of fig. 2.
In the figure:
1. seat board 2, mounting plate 3, fixing pin 4, shaft sleeve 5, inner hexagon bolt 6, thick bolt shaft
7. Spring 8a, first separator plate 8b, second separator plate 9, friction plate 10, blocking sleeve 11 and blocking piece
12. Nut 13, end cover 14, bucket body pin 15, locking nut 16 and bucket door pin
17. Bracket 18, flat key 19, hopper door 20, annular plate 21 and pin shaft
22. Camber beam 23, bucket body 24, anti-impact damping device
Detailed Description
The structure of the impact damper device for the door of the excavator bucket according to the present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 1 to 3, a bucket of an excavator includes a body 23 and a gate 19. The front end of the bucket body forms a material receiving opening, and the rear end forms a material discharge opening. The hopper door 19 is used for closing a material discharge port of the hopper body and is hinged with a pin shaft 21 on the hopper body through a bent beam 22. The impact damper 24 of the present invention is installed between the body 23 and the curved beam 22, and may be installed only on one side, preferably one on each side.
Referring to fig. 2 and 3, the impact prevention damping device 24 includes: a bucket pin 16, a bucket pin 14, a base, and a damping assembly. The bucket door pin 16 is fixedly arranged on the curved beam 22 through a bracket 17; the bucket body pin 14 is fixedly arranged on the bucket body 23; the bucket door pin 16, the bucket body pin 14 and the bucket door pin 21 are parallel to each other. The base is installed on the bucket body on one side of the pin shaft 21 and used for installing the damping assembly, and a mounting hole is formed in the base. The damping assembly comprises a thick bolt shaft 6, a spring 7, a shaft sleeve 4, a first partition plate 8a, a second partition plate 8b, a circular ring type friction plate 9 and a blocking sleeve 10.
Specifically, the shaft sleeve 4 is in a circular tube shape, one end of the shaft sleeve extends into the mounting hole of the base, and the shaft sleeve is fixedly mounted with the base and coaxial with the pin shaft 21; the first partition plate 8a, the second partition plate 8b and the annular friction plate 9 are sleeved outside the shaft sleeve 4, and one end, far away from the shaft sleeve 4, of the first partition plate 8a is fixedly connected with a bucket door pin 16; one end of the second partition plate 8b, far away from the shaft sleeve 4, is fixedly connected with a bucket body pin 14; the friction plate 9 is located between the first separator plate 8a and the second separator plate 8b.
Preferably, the first separator plate 8a and the second separator plate 8b may be respectively provided in plural, for example, referring to the embodiment of fig. 3, two first separator plates 8a and 3 second separator plates 8b are provided at intervals, and friction plates 9 are provided between the separator plates.
The thick bolt shaft 6 is coaxially arranged with the pin shaft 21, one end of the thick bolt shaft 6 extends into the shaft sleeve 4, and a gap is formed between the thick bolt shaft and the base; the spring 7 is sleeved on the thick bolt shaft 6, one end of the spring 7, which is close to the base, is restrained by a fixing pin 3, and the other end of the spring 7 is restrained by a stopper 11 and is in a compressed state; the stop piece 11 is fixedly connected with the shaft sleeve 4, and when a gap is formed between the first separator plate (8a) and the second separator plate (8b) and the friction plate 9, the thick bolt shaft 6 can move towards the base relative to the stop piece 11.
The stop member 11 may be a ring through which the thick bolt shaft 6 passes, and the outer edge of the ring is fixedly connected with the shaft sleeve. The stop member 11 may also be a stop pin, and the thick bolt shaft 6 is formed with a long and narrow through hole, through which the stop pin 11 passes and both ends of which are fixedly connected with the shaft sleeve 4.
The blocking sleeve 10 is provided with a cylindrical cover body, a through hole is formed in the center of the cover body and is sleeved on the thick bolt shaft 6, the cylindrical cover body is sleeved on the shaft sleeve 4, and the cylindrical cover body and the shaft sleeve can slide relatively; the outer peripheral surface of the cylindrical cover body extends along the radial direction to form a pressure plate, and the outer side of the blocking sleeve 10 is locked by a nut 12; the first separator plate 8a, the friction plate 9 and the second separator plate 8b are compressed between the base and the pressure plate.
In the embodiment shown in fig. 3, the base comprises a ring-shaped base plate 20, a seat plate 1 and a mounting plate 2, wherein: the bottom plate 20 is sleeved on the pin shaft 21 and fixedly mounted with the bucket body 23, and the inner diameter of the bottom plate 20 is larger than the outer diameter of the pin shaft 21; the inner diameter of the seat plate 1 is larger than the outer diameter of the shaft sleeve 4, and the seat plate 1 is fixedly arranged on the bottom plate 20; the inner diameter of the mounting plate 2 is adapted to the outer diameter of the shaft sleeve 4, and the shaft sleeve 4 is fixedly connected with the seat plate 1. The base further comprises a flat key 18, wherein the flat key 18 is installed on the seat plate 1, and a gap is formed between the flat key 18 and the end part of the thick bolt shaft 6 and used for separating the pin shaft 21 and the thick bolt shaft 6.
Referring to fig. 2, U-shaped notches are formed at ends of the first partition plate 8a and the second partition plate 8b, which are far away from the thick bolt shaft 6, and are respectively sleeved on the gate pin 16 and the bucket body pin 14 and fixedly connected with the gate pin 16 and the bucket body pin 14.
Referring to fig. 3, the bucket body pin 14 is fixed on the bucket body through a fixing bolt and a locking nut 15, the fixing bolt fixes one side of the mounting plate of the bucket body, a screw rod of the fixing bolt extends out of the other side of the mounting plate, and the bucket body pin 14 is in threaded connection with the screw rod and is locked by the locking nut 15.
The retaining sleeve 10 and, therefore, the separating plates 8a, 8b and the friction plates 9 can be pressed tightly by tightening the nut 12, so that the friction force between the separating plates 8a, 8b and the friction plates 9 is ensured. When the separator 8 and the annular friction plate 9 have a gap due to long-time operation, under the action of the spring 7 in a compressed state, the thick bolt shaft 6 is pulled towards the base and moves towards the base relative to the stop pin 11, so that the stop sleeve 10 is driven to press the separator 8 and the annular friction plate 9, the pressure between the separator 8 and the friction plate 9 is kept constant, and the friction force can be kept stable.
The nut 12 presses the baffle sleeve 10, the baffle sleeve 10 and the mounting plate 2 tightly press the partition plates 8a and 8b and the friction plate 9, and a gap formed between the end part of the thick bolt shaft 6 and the base is used for compensating the gap formed by long-term abrasion of the friction plate 9.
The pressure on the friction plate 9 can be adjusted by adjusting the nut 12 according to different working conditions. The end cover 13 is in threaded fit with the thick bolt shaft 6 and plays a role in locking the nut 12 and protecting.
The working process of the excavator provided with the damping device of the invention is as follows:
after the material fills the bucket, the operator positions the bucket over the loading vehicle, opening the latch mechanism at the bottom of the bucket, and under the weight of the material in the bucket, the bucket door opens, swinging downward away from the bucket body about pin 21. The violent downward swinging of the hopper door around the pin shaft 21 is slowed down due to the friction force between the partition plate 8 and the circular ring type friction plate 9. Meanwhile, large materials overflowing from the edge of the bucket or the interior of the bucket can fall off and hit the damping device, and the damping device is smaller in size than the damping device driven by the connecting rod, and the end cover 13 also plays a role in protection, so that the damage possibility is lower, and the long-term reliable operation of the damping device is ensured.
After the material is unloaded, the operator can make the scraper bowl remove to initial position, and at this moment, the scraper bowl has rotated 90 degrees clockwise by the position of unloading, and under the effect of self gravity, the dipper door falls to the dipper body, and bolt mechanism resets. In the process, due to the fact that friction force exists between the partition plates 8a and 8b and the friction plate 9, the falling speed of the hopper door is reduced, the hopper door can be closed stably, and impact of the hopper door on the hopper body is reduced.
The excavator in the present invention may be a mining excavator or other excavator of similar construction.
Claims (9)
1. The utility model provides an protecting against shock damping device of excavator bucket sluice gate, the excavator bucket includes bucket body and sluice gate, the sluice gate is articulated through the round pin axle on camber beam and the bucket body, its characterized in that: the anti-impact damping device is at least arranged on one side of the pin shaft (21), and comprises a bucket door pin (16), a bucket body pin (14), a base and a damping component,
the bucket door pin (16) is fixedly arranged on the curved beam (22) through a support (17), the bucket body pin (14) is fixedly arranged on the bucket body (23), and the bucket door pin (16), the bucket body pin (14) and the pin shaft (21) are parallel to each other;
the base is arranged on the bucket body on one side of the pin shaft (21) and used for mounting the damping assembly, and a mounting hole is formed in the base;
the damping assembly comprises a shaft sleeve (4), a first partition plate (8a), a second partition plate (8b), a friction plate (9), a thick bolt shaft (6), a spring (7) and a blocking sleeve (10), wherein:
the shaft sleeve (4) is in a circular tube shape, one end of the shaft sleeve extends into the mounting hole of the base, and the shaft sleeve is fixedly installed on the base and is coaxial with the pin shaft (21);
the first partition plate (8a), the second partition plate (8b) and the friction plate (9) are sleeved on the shaft sleeve (4) and can rotate relative to the shaft sleeve (4), and the friction plate (9) is arranged between the first partition plate (8a) and the second partition plate (8 b); one end of the first clapboard (8a) far away from the shaft sleeve (4) is fixedly connected with a bucket door pin (16); one end, far away from the shaft sleeve (4), of the second partition plate (8b) is fixedly connected with a bucket body pin (14);
the thick bolt shaft (6) and the pin shaft (21) are coaxially arranged, one end of the thick bolt shaft (6) extends into the shaft sleeve (4), and a gap is formed between the thick bolt shaft and the base; the spring (7) is sleeved on the thick bolt shaft (6), one end of the spring (7) close to the base is restrained by a fixing pin (3), and the other end of the spring (7) is restrained by a stopper (11) and is in a compressed state; the blocking piece (11) is fixedly connected with the shaft sleeve (4), and when a gap is formed between the first partition plate (8a) and the friction plate (9) and between the second partition plate (8b) and the friction plate (9), the thick bolt shaft (6) can move towards the direction close to the base relative to the blocking piece (11);
the blocking sleeve (10) is provided with a cylindrical cover body, a through hole is formed in the center of the cover body and is sleeved on the thick bolt shaft (6), the cylindrical cover body is sleeved on the shaft sleeve (4), and the cylindrical cover body and the shaft sleeve can slide relatively; the outer peripheral surface of the cylindrical cover body extends along the radial direction to form a pressure plate, and the outer side of the blocking sleeve (10) is locked by a nut (12); the first separator plate (8a), the friction plate (9) and the second separator plate (8b) are compressed between the base and the pressure plate.
2. An impact-resistant damping device as defined in claim 1, further comprising: the first separator plate (8a) and the second separator plate (8b) are arranged in an overlapped mode, and a friction plate (9) is arranged between every two adjacent first separator plates (8a) and second separator plates (8 b).
3. An impact-resistant damping device as defined in claim 2, wherein: the number of the first partition plates (8a) is two, and the number of the second partition plates (8b) is three.
4. An impact-resistant damping device as defined in claim 1, further comprising: the blocking piece (11) is a circular ring, the thick bolt shaft (6) penetrates through the circular ring, and the outer edge of the circular ring is fixedly connected with the shaft sleeve.
5. An impact-resistant damping device as defined in claim 1, further comprising: the blocking piece (11) is a blocking pin, a long and narrow through hole is formed in the thick bolt shaft (6), the blocking pin (11) penetrates through the long and narrow through hole, and two ends of the blocking pin are fixedly connected with the shaft sleeve (4).
6. An impact-resistant damping device as defined in any one of claims 1-5, wherein: the base includes annular bottom plate (20), bedplate (1) and mounting panel (2), wherein:
the bottom plate (20) is sleeved on the pin shaft (21) and fixedly mounted with the bucket body (23), and the inner diameter of the bottom plate (20) is larger than the outer diameter of the pin shaft (21);
the inner diameter of the seat plate (1) is larger than the outer diameter of the shaft sleeve (4), and the seat plate (1) is fixedly arranged on the bottom plate (20);
the inner diameter of the mounting plate (2) is adapted to the outer diameter of the shaft sleeve (4), and the shaft sleeve (4) is fixedly connected with the seat plate (1).
7. An impact-resistant damping device as defined in claim 6, wherein: the base further comprises a flat key (18), wherein the flat key (18) is installed on the seat plate (1) and forms a gap with the end part of the thick bolt shaft (6) to separate the pin shaft (21) and the thick bolt shaft (6).
8. An impact-resistant damping device as defined in claim 7, wherein: one ends, far away from the thick bolt shaft (6), of the first partition plate (8a) and the second partition plate (8b) are respectively provided with a U-shaped notch, and the U-shaped notches are respectively sleeved on the bucket door pin (16) and the bucket body pin (14) and are respectively fixedly connected with the bucket door pin (16) and the bucket body pin (14).
9. An impact-resistant damping device as defined in claim 8, wherein: bucket body round pin (14) are fixed through a fixing bolt and a lock nut (15) on the bucket body, mounting panel one side of the fixed bucket body of fixing bolt and its screw rod stretch out to the mounting panel opposite side, bucket body round pin (14) with screw rod threaded connection, and by lock nut (15) locking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010266647.4A CN111424742A (en) | 2020-04-07 | 2020-04-07 | Anti-impact damping device of bucket door of excavator bucket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010266647.4A CN111424742A (en) | 2020-04-07 | 2020-04-07 | Anti-impact damping device of bucket door of excavator bucket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111424742A true CN111424742A (en) | 2020-07-17 |
Family
ID=71552422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010266647.4A Pending CN111424742A (en) | 2020-04-07 | 2020-04-07 | Anti-impact damping device of bucket door of excavator bucket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111424742A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140165431A1 (en) * | 2012-12-19 | 2014-06-19 | Caterpillar Global Mining Llc | Hydraulic door snubber |
| CN204174652U (en) * | 2014-10-31 | 2015-02-25 | 沈阳露天采矿设备制造有限公司 | New type mining excavator bucket body damping mechanism |
| CN104401612A (en) * | 2014-11-17 | 2015-03-11 | 中国第一重型机械股份公司 | Buffering device for opening and closing open bucket |
| CN104755676A (en) * | 2012-09-05 | 2015-07-01 | 埃斯科公司 | Bucket for cable shovel |
| CN206928347U (en) * | 2016-09-28 | 2018-01-26 | 哈尼斯菲格技术公司 | Damper for mechanical shovel scraper bowl and the bucket assembly for mining shovel |
-
2020
- 2020-04-07 CN CN202010266647.4A patent/CN111424742A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104755676A (en) * | 2012-09-05 | 2015-07-01 | 埃斯科公司 | Bucket for cable shovel |
| US20140165431A1 (en) * | 2012-12-19 | 2014-06-19 | Caterpillar Global Mining Llc | Hydraulic door snubber |
| CN204174652U (en) * | 2014-10-31 | 2015-02-25 | 沈阳露天采矿设备制造有限公司 | New type mining excavator bucket body damping mechanism |
| CN104401612A (en) * | 2014-11-17 | 2015-03-11 | 中国第一重型机械股份公司 | Buffering device for opening and closing open bucket |
| CN206928347U (en) * | 2016-09-28 | 2018-01-26 | 哈尼斯菲格技术公司 | Damper for mechanical shovel scraper bowl and the bucket assembly for mining shovel |
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Application publication date: 20200717 |