CN220593012U - Pin shaft dismounting device for excavator - Google Patents
Pin shaft dismounting device for excavator Download PDFInfo
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- CN220593012U CN220593012U CN202322237966.4U CN202322237966U CN220593012U CN 220593012 U CN220593012 U CN 220593012U CN 202322237966 U CN202322237966 U CN 202322237966U CN 220593012 U CN220593012 U CN 220593012U
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- 230000005540 biological transmission Effects 0.000 claims description 21
- 238000004891 communication Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 14
- 230000008569 process Effects 0.000 abstract description 10
- 238000009434 installation Methods 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a pin shaft dismounting device for an excavator, which comprises a screw rod assembly, a connecting seat assembly, a fixed ring assembly and a supporting leg assembly, wherein the connecting seat assembly is sleeved on the periphery of the screw rod assembly, the fixed ring assembly is connected with the connecting seat assembly through the supporting leg assembly, the fixed ring assembly comprises three concentric arc sections which are arranged below the connecting seat assembly, three connecting pipes are hinged between the three arc sections, and an adjusting bolt is arranged on the connecting pipes along the radial direction; the landing leg assembly comprises three landing legs which are arranged at intervals along the circumferential direction, one end of each landing leg is connected with a magnet, the other end of each landing leg is hinged on the connecting seat assembly through a fastener, and the three landing legs respectively penetrate through the inside of the three connecting pipes. The device remarkably improves the safety in the disassembly process, greatly reduces the labor intensity, can adapt to the disassembly of the pin shafts with different sizes, has stronger universality, and is fixed in the relative position of the magnet and the installation surface in the disassembly process, so that the excavator body is not easy to damage.
Description
Technical Field
The utility model belongs to the technical field of overhauling of excavator equipment, and particularly relates to a pin shaft dismounting device for an excavator.
Background
The working device of the excavator generally comprises a movable arm, a bucket rod, a bucket, a movable arm oil cylinder, a bucket rod oil cylinder, a bucket oil cylinder and a connecting rod mechanism, wherein the mechanisms are connected with each other through a pin shaft, and the whole working device is connected to a rotary platform through the pin shaft. With the long-time work of the excavator, the pin shaft is worn and needs to be replaced in time so as not to influence the normal use of the excavator.
At present, a copper bar is propped against the mounting end of a pin shaft of an excavator in the industry, the copper bar is knocked by a large hammer to push the pin shaft out of a pin hole, and various tools such as a crowbar, a small hammer and the like are used for assisting in disassembly according to different conditions. The disassembly method has the advantages that the labor intensity of workers is high, the safety of the construction process is poor, and the excavator body is extremely easy to damage in the disassembly process.
Disclosure of Invention
In order to solve part or all of the technical problems in the prior art, the utility model provides a pin shaft dismounting device for an excavator, wherein a threaded inner hole is formed in a baffle end of a pin shaft along an axial direction, the pin shaft dismounting device for the excavator comprises a screw rod assembly, a connecting seat assembly, a fixed ring assembly and a supporting leg assembly, wherein:
the screw rod assembly comprises a prismatic handle, a first threaded section, a fixing nut and a transmission nut, wherein a second threaded section is arranged between the prismatic handle and the first threaded section, the inner hole of the fixing nut and the threaded inner hole on the pin shaft are both provided with internal threads matched with the first threaded section, the inner hole of the transmission nut is provided with internal threads matched with the second threaded section, the fixing nut is in threaded engagement connection with the first threaded section, and the transmission nut is in threaded engagement connection with the second threaded section;
the connecting seat assembly comprises a seat body with a through hole at the center, and three groups of support plates arranged on the seat body at intervals along the circumferential direction of the through hole, wherein the periphery of the second thread section is sleeved in the through hole, two support plates in each group are symmetrically arranged along the axial direction of the through hole, and the two support plates are respectively provided with a connecting hole with the axes coincident;
the fixed ring assembly comprises three concentric arc sections arranged below the connecting seat assembly, three connecting pipes are hinged between the three arc sections, the central angle of each arc section is 120 degrees, and the connecting pipes are radially provided with adjusting bolts;
the landing leg assembly comprises three landing legs which are arranged at intervals along the circumferential direction, one end of each landing leg is connected with a magnet, the other end of each landing leg is hinged between two connecting holes of each group of support plates through a fastener, and the three landing legs respectively penetrate through the inside of the three connecting pipes.
Further, in the pin shaft dismounting device for the excavator, the fastening piece hinged between the supporting leg and the supporting plate is a bolt and a nut, and the diameter of the bolt is matched with the inner diameter of the connecting hole.
Further, in the pin shaft dismounting device for the excavator, the outer diameter of the second threaded section is matched with the inner diameter of the through hole formed in the center of the connecting seat and is larger than the outer diameters of the first threaded section and the prismatic handle.
Further, in the above-described pin removal device for an excavator, the inner diameter of the connecting pipe is matched with the outer diameter of the leg.
In one specific embodiment, in the pin shaft dismounting device for the excavator, the prismatic handle is a hexagonal prismatic handle.
The pin shaft dismounting device for the excavator has the following advantages and beneficial effects:
(1) The device adopts the first thread section 11 and the fixed nut 14 to match with the locking pin shaft 5, and the second thread section 12 is connected with the first thread section 11 and the pin shaft 5 by rotating the transmission nut 15 to perform reverse motion relative to the transmission nut 15 and provide moment to pull up the pin shaft 5, so that the safety in the working process is remarkably improved, and the labor intensity is greatly reduced.
(2) The device can adjust the relative position between the arc section 31 and the supporting leg 41 by rotating the adjusting bolt 33 so as to adapt to the disassembly of the pin shafts with different sizes, and has stronger universality.
(3) The magnet 42 is installed at the end of the supporting leg 41 of the device, the supporting leg assembly 4 can be adsorbed on the mounting surface 53 through the magnet 42, so that the supporting leg 41 can be moved and positioned more conveniently when the pin 5 is detached, the relative positions of the magnet and the mounting surface are fixed in the detaching process, and the excavator body is not easy to damage.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the solutions of the prior art, the drawings which are necessary for the description of the embodiments or the prior art are briefly described below, it being evident that the drawings which are presented below are only for a further understanding of the embodiments of the present utility model and form a part thereof, from which other drawings can be obtained without inventive effort for a person skilled in the art. In the drawings:
fig. 1 is a schematic perspective view of a pin removing apparatus for an excavator according to the present utility model;
FIG. 2 is a front view of a connector assembly of the pin removal device for an excavator of the present utility model;
FIG. 3 is a front view of a magnet in the pin removal device for an excavator according to the present utility model;
FIG. 4 is a front view of the leg of the pin removal device for an excavator of the present utility model;
fig. 5 is a schematic view showing a use state of the pin removing apparatus for an excavator according to the present utility model.
Reference numerals illustrate:
1-screw assembly, 11-first screw flight, 12-second screw flight, 13-prismatic handle, 14-fixation nut, 15-drive nut, 2-connection seat assembly, 21-through hole, 22-seat, 23-support plate, 24-connection hole, 3-fixation ring assembly, 31-arc section, 32-connection tube, 33-adjusting bolt, 4-support leg assembly, 41-support leg, 42-magnet, 43-ear plate, 44-mounting hole, 5-pin shaft, 51-threaded inner hole, 52-baffle, 53-mounting surface.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to specific embodiments of the present utility model and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.
As shown in fig. 1 to 5, a threaded inner hole 51 is formed in the end of a baffle plate 52 of a pin 5 in the pin shaft dismounting device for the excavator, which is provided by the utility model, along the axial direction, the pin shaft dismounting device for the excavator comprises a screw rod component 1, a connecting seat component 2, a fixed ring component 3 and a supporting leg component 4, wherein the screw rod component 1 comprises a prismatic handle 13, a first threaded section 11, a fixed nut 14 and a transmission nut 15, a second threaded section 12 is arranged between the prismatic handle 13 and the first threaded section 11, the inner hole of the fixed nut 14 and the threaded inner hole 51 on the pin shaft 5 are both provided with inner threads matched with the first threaded section 11, the inner hole of the transmission nut 15 is provided with inner threads matched with the second threaded section 12, the fixed nut 14 is in threaded meshed connection with the first threaded section 11, and the transmission nut 15 is in threaded meshed connection with the second threaded section 12;
the connecting seat assembly 2 comprises a seat body 22 with a through hole 21 at the center and three groups of support plates 23 arranged on the seat body 22 at intervals along the circumferential direction of the through hole 21, the periphery of the second thread section 12 is sleeved in the through hole 21, two support plates 23 in each group are symmetrically arranged along the axial direction of the through hole 21, and the two support plates 23 are respectively provided with a connecting hole 24, and the axes of the two connecting holes 24 are coincident;
the fixed ring assembly 3 comprises three concentric arc sections 31 arranged below the connecting seat assembly 2, three connecting pipes 32 are hinged among the three arc sections 31, the central angle of each arc section 31 is 120 degrees, each connecting pipe 32 is radially provided with an adjusting bolt 33, each adjusting bolt 33 is rotated, each adjusting bolt 33 is radially screwed into each connecting pipe 32, each adjusting bolt 33 is rotated in the opposite direction, and each adjusting bolt 33 is radially screwed out of each connecting pipe 32;
the support leg assembly 4 comprises three support legs 41 which are arranged at intervals along the circumferential direction, one end of each support leg 41 is connected with a magnet 42, the other end of each support leg 41 is hinged between two connecting holes 24 of each support plate 23 through a fastener, the three support legs 41 respectively penetrate through the inside of three connecting pipes 32, a mounting hole 44 is formed in the center of each magnet 42, two lug plates 43 which are symmetrically distributed along the axial direction are arranged at one end, far away from the connecting seat assembly 2, of each support leg 41, each magnet 42 is hinged between the two lug plates 43 through bolts and nuts, the support leg assembly 4 can be adsorbed on a mounting surface 53 attached by the baffle plate 52 through the magnet 42, and the support leg assembly is arranged in such a way that the relative position between the support leg 41 and the mounting surface 53 is more convenient when being adjusted;
along with adjusting bolt 33 screw in connecting pipe 32, adjusting bolt 33 butt is to the landing leg 41 periphery, can't continue the screw in, and arc section 31 and landing leg 41's position relatively fixed this moment, when screwing out adjusting bolt 33 from connecting pipe 32 in, adjusting bolt 33 breaks away from landing leg 41 periphery, and connecting pipe 32 can slide relatively between 41 and the landing leg, and when connecting pipe 32 slides to connecting seat subassembly 2 one end, the contained angle between landing leg 41 and screw rod subassembly 1 increases, and the distance between connecting seat subassembly 2 and arc section 31 reduces, and when connecting pipe 32 slides to magnet 42 one end, the contained angle between landing leg 41 and screw rod subassembly 1 reduces, and the distance between connecting seat subassembly 2 and the arc section 31 increases.
Further, in the pin shaft dismounting device for the excavator of the present utility model, the outer diameter of the second threaded section 12 is matched with the inner diameter of the through hole 21 formed in the center of the base 22 and is larger than the outer diameters of the first threaded section 11 and the prismatic handle 13, and the connection base assembly 2 can slide relatively between the through hole 21 and the second threaded section 12.
Further, in the pin removing apparatus for an excavator of the present utility model, the fasteners hinged between the legs 41 and the supporting plate 23 are bolts and nuts, and the diameters of the bolts are matched with the inner diameters of the connection holes 24.
Further, in the pin removing apparatus for an excavator of the present utility model, the inner diameter of the connection pipe 32 is matched with the outer diameter of the leg 41.
In a specific embodiment, in the pin removing apparatus for an excavator according to the present utility model, the prismatic handle 13 is a hexagonal prismatic handle.
The application method of the pin shaft dismounting device for the excavator comprises the following steps: during installation, the prismatic handle 13 is rotated by using tools such as a hydraulic wrench and an electric wrench to screw the first threaded section 11 into the threaded inner hole 51 on the pin shaft 5, the fixing nut 14 is rotated to be attached to the baffle plate 52 fixed on the pin shaft 5, then the relative position of the arc section 31 and the supporting leg 41 is adjusted through the adjusting bolt 33 according to the size of the pin shaft 5, the distance between the magnet 42 and the connecting seat group 2 is adjusted to meet the actual use requirement of the size of the pin shaft to be detached, the adjusting bolt 33 is screwed after adjustment, the relative position of the arc section 31 and the supporting leg 41 is fixed, then the connecting seat assembly 2 is sleeved on the periphery of the second threaded section 12 and slides along the second threaded section 2 until the magnet 42 at the end part of the supporting leg 41 can be adsorbed on the mounting surface 53, and then the transmission nut 15 is meshed with the second threaded section 12, so that the installation is completed; when the transmission nut 15 is disassembled, the transmission nut 15 is attached to the end face of the base 22, and as the transmission nut 15 continues to rotate, the transmission nut 15 cannot continue to move towards the direction of the pin shaft 5, at the moment, the second threaded section is connected with the first threaded section 11 and the pin shaft 5 to perform reverse movement relative to the transmission nut 15 under the action of the threaded engagement of the internal threads of the transmission nut 15 and the second threaded section 12 until the pin shaft 5 completely breaks away from the pin hole, the transmission nut 15 stops rotating, the pin shaft 5 rotates to break away from the first threaded section 11, and the disassembly of the pin shaft 5 is completed.
In summary, compared with the prior art, the pin shaft dismounting device for the excavator has the following advantages and beneficial effects:
(1) The device adopts the first thread section 11 and the fixed nut 14 to match with the locking pin shaft 5, and the second thread section 12 is connected with the first thread section 11 and the pin shaft 5 by rotating the transmission nut 15 to perform reverse motion relative to the transmission nut 15 and provide moment to pull up the pin shaft 5, so that the safety in the working process is remarkably improved, and the labor intensity is greatly reduced.
(2) The device can adjust the relative position between the arc section 31 and the supporting leg 41 by rotating the adjusting bolt 33 so as to adapt to the disassembly of the pin shafts with different sizes, and has stronger universality.
(3) The magnet 42 is installed at the end of the supporting leg 41 of the device, the supporting leg assembly 4 can be adsorbed on the mounting surface 53 through the magnet 42, so that the supporting leg 41 can be moved and positioned more conveniently when the pin 5 is detached, the relative positions of the magnet and the mounting surface are fixed in the detaching process, and the excavator body is not easy to damage.
It should be noted that, unless explicitly stated or limited otherwise, the term "connected" or its synonyms should be construed broadly herein, and for example, "connected" may be either a fixed connection or a removable connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate medium, and may be the communication between two elements or the interaction relationship between the two elements, so that those skilled in the art will understand the specific meaning of the terms in the present utility model according to the specific circumstances. Moreover, expressions such as "first" and "second" are merely used to distinguish one entity or action from another entity or action, and do not necessarily require or imply any such actual relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. In this context, "front", "rear", "left", "right", "upper", "lower", etc. are referred to the placed state shown in the drawings.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting thereof; although the utility model has been described in detail with reference to examples, those skilled in the art will appreciate that: the technical schemes described in the foregoing embodiments may be modified or some of the technical features may be replaced equivalently; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (5)
1. A round pin axle dismounting device for excavator, threaded hole has been seted up along the axis direction to the baffle end of round pin axle, a serial communication port, a round pin axle dismounting device for excavator includes screw rod subassembly, connecting seat subassembly, solid fixed ring subassembly, landing leg subassembly, wherein:
the screw rod assembly comprises a prismatic handle, a first threaded section, a fixing nut and a transmission nut, wherein a second threaded section is arranged between the prismatic handle and the first threaded section, the inner hole of the fixing nut and the threaded inner hole on the pin shaft are both provided with internal threads matched with the first threaded section, the inner hole of the transmission nut is provided with internal threads matched with the second threaded section, the fixing nut is in threaded engagement connection with the first threaded section, and the transmission nut is in threaded engagement connection with the second threaded section;
the connecting seat assembly comprises a seat body with a through hole at the center, and three groups of support plates arranged on the seat body at intervals along the circumferential direction of the through hole, wherein the periphery of the second thread section is sleeved in the through hole, two support plates in each group are symmetrically arranged along the axial direction of the through hole, and the two support plates are respectively provided with a connecting hole with the axes coincident;
the fixed ring assembly comprises three concentric arc sections arranged below the connecting seat assembly, three connecting pipes are hinged between the three arc sections, the central angle of each arc section is 120 degrees, and the connecting pipes are radially provided with adjusting bolts;
the landing leg assembly comprises three landing legs which are arranged at intervals along the circumferential direction, one end of each landing leg is connected with a magnet, the other end of each landing leg is hinged between two connecting holes of each group of support plates through a fastener, and the three landing legs respectively penetrate through the inside of the three connecting pipes.
2. The pin removal apparatus for an excavator of claim 1 wherein the fasteners hinged between the legs and the brackets are bolts and nuts, the bolt diameter matching the inside diameter of the attachment holes.
3. The pin removal apparatus for an excavator of claim 1 wherein the second thread segments have an outer diameter that matches the inner diameter of the through bore formed in the center of the connection block and is greater than the outer diameters of the first thread segments and the prismatic handle.
4. The pinshaft dismounting apparatus for an excavator of claim 1 wherein the connecting tube has an inner diameter which matches the outer diameter of the leg.
5. The pinshaft dismounting device for an excavator of claim 1 wherein the prismatic handle is a hexagonal prismatic handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322237966.4U CN220593012U (en) | 2023-08-21 | 2023-08-21 | Pin shaft dismounting device for excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322237966.4U CN220593012U (en) | 2023-08-21 | 2023-08-21 | Pin shaft dismounting device for excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220593012U true CN220593012U (en) | 2024-03-15 |
Family
ID=90169413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322237966.4U Active CN220593012U (en) | 2023-08-21 | 2023-08-21 | Pin shaft dismounting device for excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220593012U (en) |
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2023
- 2023-08-21 CN CN202322237966.4U patent/CN220593012U/en active Active
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