CN215669756U - Front supporting device of bucket rod, bucket rod and excavator - Google Patents
Front supporting device of bucket rod, bucket rod and excavator Download PDFInfo
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- CN215669756U CN215669756U CN202121176792.XU CN202121176792U CN215669756U CN 215669756 U CN215669756 U CN 215669756U CN 202121176792 U CN202121176792 U CN 202121176792U CN 215669756 U CN215669756 U CN 215669756U
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- bucket
- raceway
- front support
- shaft sleeve
- bucket rod
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Abstract
The utility model provides a bucket rod front support device, a bucket rod and an excavator. The front support device of the bucket rod comprises a shaft sleeve used for being connected with the front support end of the bucket rod, rotating pieces used for being connected with a bucket are arranged at two ends of the shaft sleeve respectively, the rotating pieces and the shaft sleeve are coaxial, a roller is arranged between the rotating pieces and the shaft sleeve, and the rotating pieces can rotate relative to the shaft sleeve through the roller. The utility model realizes that the sliding friction between the bucket rod and the bucket is converted into the rolling friction between the roller, the shaft sleeve and the rotating piece, reduces the motion abrasion between the bucket rod and the bucket, prolongs the service life of the bucket rod and the bucket, and ensures the operation safety.
Description
Technical Field
The utility model relates to the technical field of engineering machinery, in particular to a bucket rod front supporting device, a bucket rod and an excavator.
Background
The excavator often works in adverse environments such as water, gravel, mines and the like, and the requirements on the wear resistance and the pressure resistance of the hinged part of a bucket rod and a bucket of the excavator are high.
At present, a bucket rod front supporting structure of an excavator adopts a pipe workpiece, and the end surface of the front supporting structure is in contact with the matching end surface of a bucket. When the scraper bowl pivoting, two terminal surfaces produce sliding friction for the continuous wearing and tearing of the contact surface between scraper bowl and the dipper lead to the clearance between preceding bearing structure's terminal surface and the scraper bowl cooperation terminal surface to increase gradually, reduce preceding bearing structure's life, simultaneously, reduce work efficiency, and there is the potential safety hazard.
SUMMERY OF THE UTILITY MODEL
The utility model provides a bucket rod front support device, a bucket rod and an excavator, which are used for solving the defect of poor wear resistance between a bucket and a bucket rod front support structure in the prior art, reducing the motion wear between the bucket and the bucket rod front support and prolonging the service life.
The utility model provides a bucket rod front support device which comprises a shaft sleeve used for being connected with the front support end of a bucket rod, wherein two ends of the shaft sleeve are respectively provided with a rotating piece used for being connected with a bucket, the rotating piece and the shaft sleeve are coaxial, a roller is arranged between the rotating piece and the shaft sleeve, and the rotating piece can rotate relative to the shaft sleeve through the roller.
According to the bucket rod front supporting device provided by the utility model, the inner wall of the shaft sleeve is provided with the first rolling way arranged along the circumferential direction of the shaft sleeve, the rotating piece is provided with the second rolling way matched with the first rolling way, and the roller can be arranged between the first rolling way and the second rolling way in a rolling manner.
According to the bucket rod front supporting device provided by the utility model, the shaft sleeve is provided with a filling hole, and the filling hole is communicated with the first roller path.
According to the bucket rod front supporting device provided by the utility model, a plug is arranged in the filling hole.
According to the bucket rod front support device provided by the utility model, the two ends of the shaft sleeve are respectively provided with the groove, the rotating piece is provided with the boss matched with the groove, the first rolling way is arranged on the inner peripheral side wall of the groove, and the second rolling way is arranged on the circumferential side wall of the boss.
According to the bucket rod front supporting device provided by the utility model, the rotating piece is provided with the connecting seat for connecting the bucket, and the diameter of the connecting seat is the same as the outer diameter of the shaft sleeve.
According to the bucket rod front supporting device provided by the utility model, the sealing ring is arranged between the connecting seat and the shaft sleeve.
According to the bucket rod front supporting device provided by the utility model, the first roller path and the second roller path are both quenching roller paths, and the rollers are steel balls subjected to quenching treatment.
The utility model also provides a bucket rod, which comprises a rod body and the bucket rod front support device, wherein the shaft sleeve is arranged at the front support end of the rod body.
The utility model also provides an excavator, which comprises a bucket and the bucket rod front supporting device or the bucket rod, wherein the bucket is connected with the rotating piece and is connected with the shaft sleeve through a pin shaft.
According to the bucket rod front support device, the bucket rod and the excavator, the shaft sleeve used for being connected with the front support end of the bucket rod is arranged, the rotating piece used for being connected with the bucket is arranged at each of the two ends of the shaft sleeve, the rotating piece and the shaft sleeve are coaxial, the roller is arranged between the rotating piece and the shaft sleeve, and the rotating piece can rotate relative to the shaft sleeve through the roller, so that sliding friction between the bucket rod and the bucket is converted into rolling friction between the roller and the rotating piece, the motion abrasion between the bucket rod and the bucket is reduced, the service life of the bucket rod and the bucket is prolonged, and the operation safety is guaranteed.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural view of a front support device for a stick of the present invention;
FIG. 2 is a schematic view of the assembly of the front support device of the present invention with the stick;
FIG. 3 is a schematic structural view of the front support device for a dipper to assemble the dipper with a bucket;
reference numerals:
100: a shaft sleeve; 110: a first raceway; 120: a fill aperture;
130: blocking; 200: a rotating member; 210: a second raceway;
220: a seal ring; 230: a roller; 300: a rod body;
400: a bucket; 500: and (7) a pin shaft.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The bucket rod front supporting device of the present invention is described with reference to fig. 1 to 3, and includes a shaft sleeve 100 for connecting a front supporting end of a bucket rod, wherein two ends of the shaft sleeve 100 are respectively provided with a rotating member 200 for connecting with a bucket 400, the rotating member 200 is coaxial with the shaft sleeve 100, a roller 230 is arranged between the rotating member 200 and the shaft sleeve 100, and the rotating member 200 can rotate relative to the shaft sleeve 100 through the roller 230. It can be understood that the front support apparatus of the arm includes a shaft sleeve 100 and two rotation members 200, and the two rotation members 200 are respectively inserted into both ends of the shaft sleeve 100. The side wall of the shaft sleeve 100 is fixedly connected with the front support end of the bucket rod by welding, the rotating piece 200 and the shaft sleeve 100 are coaxially arranged, the first end of the rotating piece 200 is inserted into the shaft sleeve 100, and the second end of the rotating piece 200 is fixedly connected with the end face of the lug plate of the bucket 400.
Wherein, be equipped with roller 230 between rotating member 200 and the axle sleeve 100, rotating member 200 can be rotatory for axle sleeve 100 through roller 230, the upset motion of scraper bowl 400 drives rotating member 200 and rotates relative to axle sleeve 100, that is to say, convert the sliding friction between the otic placode terminal surface of scraper bowl 400 and the preceding support terminal surface of dipper into roller 230, the rolling friction of rotating member 200 and axle sleeve 100, and then reduce the motion wearing and tearing between the otic placode terminal surface of scraper bowl 400 and the preceding support terminal surface of dipper, and then improve life, guarantee the security of operation.
It is noted that the rollers 230 may be spherical balls or cylindrical rollers.
According to the bucket rod front supporting device provided by the utility model, the inner wall of the shaft sleeve 100 is provided with the first raceway 110 arranged along the circumferential direction of the shaft sleeve 100, the rotating member 200 is provided with the second raceway 210 matched with the first raceway 110, and the rollers 230 are arranged between the first raceway 110 and the second raceway 210 in a rolling manner. It is understood that the inner walls of both ends of the sleeve 100 are respectively provided with first raceways 110, and the first raceways 110 are circularly arranged along the circumferential direction of the sleeve 100. The outer side wall of the first end of the rotating member 200 is provided with a second raceway 210, the second raceway 210 is circularly arranged along the circumferential direction of the rotating member 200, and the second raceway 210 is matched with the first raceway 110. That is, when the rotary member 200 is correspondingly installed in the sleeve 100, the first raceway 110 and the second raceway 210 are aligned and matched to form a complete raceway. The rollers 230 are disposed between the first raceway 110 and the second raceway 210, and the rollers 230 can freely roll in the complete raceway formed by the first raceway 110 and the second raceway 210, so as to realize the relative rotation of the rotary member 200 with respect to the sleeve 100. Specifically, the sliding friction between the lug end surface of the bucket 400 and the front support end surface of the arm can be converted into the rolling friction between the roller 230 and the first and second raceways 110 and 210 by the roller 230, and at the same time, the axial and radial movement of the rotary member 200 can be restricted.
According to the bucket rod front support device provided by the utility model, the shaft sleeve 100 is provided with a filling hole 120, and the filling hole 120 is communicated with the first rolling path 110. It will be appreciated that the sleeve 100 is provided with a filling aperture 120, the filling aperture 120 being disposed radially of the sleeve 100 and communicating with the first race track 110 to enable filling of the rollers 230 into the race track formed by the combination of the first race track 110 and the second race track 210. It is worth noting that the diameter of the filling hole 120 is slightly larger than or the same as the diameter of the roller 230.
According to the front support device of the bucket rod of the present invention, a plug 130 is provided in the filling hole 120. It can be understood that the plug 130 is arranged in the filling hole 120, so as to block the filling hole 120, effectively prevent the roller 230 from falling off, and ensure the roller 230 to normally roll in the raceway.
According to the bucket rod front support device provided by the utility model, two ends of the shaft sleeve 100 are respectively provided with a groove, the rotating piece 200 is provided with a boss matched with the grooves, the first rolling way 110 is arranged on the inner peripheral side wall of the groove, and the second rolling way 210 is arranged on the peripheral side wall of the boss. It can be understood that, the two ends of the shaft sleeve 100 are respectively provided with a groove arranged along the axial direction of the shaft sleeve 100, the first end of the rotating member 200 is provided with a boss arranged along the axial direction of the rotating member 200, and the boss is inserted into the groove, so that the rotating member 200 can be rotatably mounted with the shaft sleeve 100. The first raceway 110 is arranged on the inner peripheral side wall of the groove, the second raceway 210 is arranged on the outer peripheral side wall of the boss, and the groove is matched with the boss in size.
According to the bucket rod front supporting device provided by the utility model, the rotating member 200 is provided with a connecting seat for connecting the bucket 400, and the diameter of the connecting seat is the same as the outer diameter of the shaft sleeve 100. It is understood that the second end of the rotary member 200 is provided with a coupling seat for fixedly coupling the end surface of the lug plate of the bucket 400. The boss is arranged on the connecting seat, the boss and the connecting seat are coaxially arranged, and the diameter of the connecting seat is the same as the outer diameter of the shaft sleeve 100.
According to the bucket rod front supporting device provided by the utility model, a sealing ring 220 is arranged between the connecting seat and the shaft sleeve 100. It can be understood that a sealing ring 220 is disposed between the connecting seat and the shaft sleeve 100, so as to ensure the sealing performance between the rotary member 200 and the shaft sleeve 100, and prevent dust in the environment from entering the raceway and affecting the rolling of the roller 230.
According to the bucket rod front supporting device provided by the utility model, the first raceway 110 and the second raceway 210 are both quenched raceways, and the roller 230 is a quenched steel ball. It will be appreciated that the first and second raceways 110 and 210 are hardened and the roller 230 is a hardened steel ball, which improves the wear resistance of the roller 230 and raceways.
The utility model also provides a bucket rod, which comprises a rod body 300 and the bucket rod front support device, wherein the shaft sleeve 100 is arranged at the front support end of the rod body 300. It will be appreciated that the front support end face of the rod body 300 is welded to the side wall of the bushing 100 to achieve a fixed connection.
The present invention also provides an excavator, which comprises a bucket 400 and a front arm support device as described above or an arm as described above, wherein the bucket 400 is connected with the rotary member 200 and is connected with the shaft sleeve 100 through a pin 500. It can be understood that the end face of the ear plate of the bucket 400 is fixedly connected with the connecting seat of the rotating member 200, the rotating member 200 is provided with a first pin hole, the shaft sleeve 100 is provided with a second pin hole, the first pin hole and the second pin hole are coaxial, and the pin 500 passes through the ear plate, the first pin hole and the second pin hole of the bucket 400 to strengthen the connection.
According to the bucket rod front support device, the bucket rod and the excavator, the shaft sleeve is arranged and used for being connected with the front support end of the bucket rod, the rotating piece used for being connected with the bucket is arranged at each of the two ends of the shaft sleeve, the rotating piece and the shaft sleeve are coaxial, the roller is arranged between the rotating piece and the shaft sleeve, and the rotating piece can rotate relative to the shaft sleeve through the roller, so that sliding friction between the bucket rod and the bucket is converted into rolling friction between the roller and the shaft sleeve and the rotating piece, movement abrasion between the bucket rod and the bucket is reduced, the service life of the bucket rod and the bucket is prolonged, and operation safety is guaranteed.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a strutting arrangement before dipper, its characterized in that includes the axle sleeve that is used for connecting dipper front support end, the both ends of axle sleeve are equipped with respectively and are used for the rotating member of being connected with the scraper bowl, the rotating member with the axle sleeve coaxial line, the rotating member with be equipped with the roller between the axle sleeve, the rotating member passes through the roller can for the axle sleeve is rotatory.
2. The front support device for the arm of the bucket of claim 1, wherein the inner wall of the shaft sleeve is provided with a first raceway arranged along the circumferential direction of the shaft sleeve, the rotating member is provided with a second raceway matched with the first raceway, and the roller is arranged between the first raceway and the second raceway in a rolling manner.
3. The front stick support of claim 2, wherein the boss is provided with a fill aperture that communicates with the first raceway.
4. The stick front support of claim 3, wherein a plug is provided in the fill hole.
5. The front support device of the bucket rod of claim 2, wherein two ends of the shaft sleeve are respectively provided with a groove, the rotating member is provided with a boss matched with the grooves, the first raceway is arranged on the inner peripheral side wall of the groove, and the second raceway is arranged on the peripheral side wall of the boss.
6. The boom front support apparatus of claim 1, wherein the swivel is provided with a coupling seat for coupling a bucket, the coupling seat having a diameter identical to an outer diameter of the boss.
7. The boom front support apparatus of claim 6, wherein a seal is disposed between the connecting seat and the bushing.
8. The front support device of the bucket rod of any one of claims 2 to 7, wherein the first raceway and the second raceway are quenched raceways and the rollers are quenched steel balls.
9. A stick comprising a stick body and a front stick support according to any of claims 1 to 8, the boss being provided at a front support end of the stick body.
10. An excavator comprising a bucket and a stick front support as claimed in any one of claims 1 to 8 or a stick as claimed in claim 9, the bucket being connected to the rotatable member and being connected to the boss by a pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121176792.XU CN215669756U (en) | 2021-05-28 | 2021-05-28 | Front supporting device of bucket rod, bucket rod and excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121176792.XU CN215669756U (en) | 2021-05-28 | 2021-05-28 | Front supporting device of bucket rod, bucket rod and excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215669756U true CN215669756U (en) | 2022-01-28 |
Family
ID=79974265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121176792.XU Active CN215669756U (en) | 2021-05-28 | 2021-05-28 | Front supporting device of bucket rod, bucket rod and excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215669756U (en) |
-
2021
- 2021-05-28 CN CN202121176792.XU patent/CN215669756U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230118 Address after: 401135 No. 618 Liangjiang Avenue, Longxing Town, Liangjiang New Area, Yubei District, Chongqing Patentee after: Sany Heavy Machinery (Chongqing) Co.,Ltd. Address before: 215000 Huancheng East Road, Kunshan Development Zone, Suzhou City, Jiangsu Province Patentee before: SANY HEAVY MACHINERY Ltd. |
|
| TR01 | Transfer of patent right |