CN216689517U - Excavator accessory quick-change device, excavator working device and excavator - Google Patents
Excavator accessory quick-change device, excavator working device and excavator Download PDFInfo
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- CN216689517U CN216689517U CN202220016136.1U CN202220016136U CN216689517U CN 216689517 U CN216689517 U CN 216689517U CN 202220016136 U CN202220016136 U CN 202220016136U CN 216689517 U CN216689517 U CN 216689517U
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Abstract
The utility model provides an excavator accessory quick-change device, an excavator working device and an excavator, wherein the excavator accessory quick-change device comprises a fixing piece, a sliding piece, a screw rod and a fixing nut, the fixing piece is used for connecting a bucket rod and the accessory, and the fixing piece is provided with a shaft hole for mounting a connecting shaft; the axis of the screw is perpendicular to the axis of the shaft hole of the fixing piece, and one end of the screw is rotatably connected with the fixing piece; the sliding part is in threaded connection with the screw rod, and moves along the axial direction of the screw rod under the rotating action of the screw rod. The quick change device is simple in structure, convenient to install and capable of improving stability of the excavator accessory in the working process.
Description
Technical Field
The utility model relates to the technical field of excavator equipment, in particular to an excavator accessory quick-changing device, an excavator working device and an excavator.
Background
Fig. 1 is a schematic structural diagram of an excavator working device in the prior art, in which at least four shaft holes for connecting with a bucket rod 10, an accessory 20 and a push rod 30 are provided on an accessory quick-change device commonly used in an excavator at present, a first shaft hole on the quick-change device 50 is generally connected with an end of the bucket rod through a connecting shaft, a second shaft hole is also connected with an end of the push rod through a connecting shaft, and a third shaft hole and a fourth shaft hole on the quick-change device are both fixed with two mounting holes on the accessory through connecting shafts; the bucket rod, the push rod and the accessory of the working device are in transition connection through the quick-change device, so that the distance between the accessory and the bucket rod and the distance between the accessory and the push rod are increased, and the stability of the excavator accessory in the working process is reduced; in addition, the existing quick-change device also has the defects of complex structure and inconvenient installation. Therefore, it is an urgent technical problem to provide a quick-change device for excavator accessories, which has a simple structure, is convenient to install, and can improve the stability of the excavator accessories in the working process.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides a quick-change device for excavator accessories, an excavator working device and an excavator, so as to solve one or more technical problems in the prior art.
According to one aspect of the utility model, a quick-change device for an excavator accessory is disclosed, the quick-change device comprises a fixing piece, a sliding piece, a screw rod and a fixing nut,
the fixing piece is used for connecting the bucket rod and the accessory, and is provided with a shaft hole for mounting a connecting shaft;
the axis of the screw is perpendicular to the axis of the shaft hole of the fixing piece, and one end of the screw is rotatably connected with the fixing piece;
the sliding part is in threaded connection with the screw rod, and moves along the axial direction of the screw rod under the rotating action of the screw rod.
In some embodiments of the present invention, the quick-change device further includes a limiting plate, and the limiting plate is used for achieving axial limiting of the screw rod.
In some embodiments of the present invention, a circumferential groove is formed at an end of the screw rod close to the fixing member, a slot is formed in the fixing member, an end of the screw rod located outside the circumferential groove is located in the slot, and the limit plate is fixedly connected to the fixing member and limits the end in the slot.
In some embodiments of the utility model, the fixing nut is located outside the slider, and the fixing nut is threadedly connected with the screw.
In some embodiments of the utility model, the fixture has an oil fill port thereon.
According to another aspect of the utility model, the utility model further discloses an excavator working device which comprises an arm, a connecting rod, a push rod, an accessory and the excavator accessory quick-change device in any one of the embodiments.
In some embodiments of the utility model, the accessory is provided with two groups of connecting shaft mounting holes which are oppositely opened, and the two groups of connecting shaft mounting holes which are oppositely opened are respectively and fixedly connected with the fixed piece and the sliding piece; or
The accessory is a bucket.
In some embodiments of the utility model, the push rod and the end of the bucket rod are provided with connecting shaft mounting holes which are opened.
In some embodiments of the present invention, the working device further includes a connecting shaft, the accessory, the bucket rod, and the fixing member are connected by the connecting shaft, and the connecting shaft is axially positioned by the shaft end baffle.
According to another aspect of the utility model, an excavator is further disclosed, and the excavator comprises the excavator accessory quick-change device in any one of the embodiments.
By utilizing the quick-change device for the excavator accessory in the embodiment of the utility model, the beneficial effects at least obtained by the following steps:
through the embodiment, the quick-change device for the excavator accessory is provided with the two connecting pieces, the fixing piece is used for connecting the bucket rod and the accessory, and the sliding piece is used for connecting the push rod and the accessory, so that the accessory is directly connected with the bucket rod and the push rod, a transition connecting part is avoided, the distance between the accessory and the connecting rod and the push rod is reduced, and the stability of the excavator accessory in the working process is improved. In addition, the quick-change device is simple in structure, and the number of positions needing to be fixed between the quick-change device and other parts is small, so that the installation is convenient.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model. The objectives and other advantages of the utility model will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
It will be appreciated by those skilled in the art that the objects and advantages that can be achieved with the present invention are not limited to the specific details set forth above, and that these and other objects that can be achieved with the present invention will be more clearly understood from the detailed description that follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the utility model and together with the description serve to explain the principles of the utility model. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the utility model. For purposes of illustrating and describing some portions of the present invention, corresponding parts of the drawings may be exaggerated, i.e., may be larger, relative to other components in an exemplary apparatus actually manufactured according to the present invention. In the drawings:
fig. 1 is a schematic structural view of a working device of an excavator in the related art.
Fig. 2 is a schematic structural view of a quick-change device for an excavator accessory according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of an excavator work apparatus according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.
It should be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and/or processing steps closely related to the scheme according to the present invention are shown in the drawings, and other details not closely related to the present invention are omitted.
It should be emphasized that the term "comprises/comprising/comprises/having" when used herein, is taken to specify the presence of stated features, elements, steps or components, but does not preclude the presence or addition of one or more other features, elements, steps or components.
It should be noted that the terms of orientation and orientation used in the present specification are relative to the position and orientation shown in the drawings; the term "coupled" herein may mean not only directly coupled, but also indirectly coupled, in which case intermediates may be present, if not specifically stated. A direct connection is one in which two elements are connected without the aid of intermediate elements, and an indirect connection is one in which two elements are connected with the aid of other elements.
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the drawings, like reference characters designate the same or similar parts throughout the several views.
Fig. 2 is a schematic structural diagram of a quick-change device for an excavator accessory according to an embodiment of the present invention, and as shown in fig. 2, the quick-change device for an excavator accessory includes a fixing member 51, a sliding member 52, a screw 53, and a fixing nut 54.
The fixing piece 51 is used for connecting the bucket rod 10 and the accessory 20, and the fixing piece 51 is provided with a shaft hole for mounting a connecting shaft; for example, the fixing member 51 may have a cylindrical barrel structure, and a central through hole of the cylindrical barrel may serve as an axial hole of the fixing member 51, so that when the fixing member 51, the accessory 20, and the arm 10 are installed in place, the fixing member 51, the accessory 20, and the arm 10 are fixed by the connecting shaft. The axis of the screw 53 is perpendicular to the axis of the shaft hole of the fixed part 51, and one end of the screw 53 is rotatably connected with the fixed part 51; the one end of the screw 53 is rotatably connected to the fixing member 51 means that one end of the screw 53 is connected to the fixing member 51, and the screw 53 can rotate relative to the fixing member 51. The two ends of the sliding part 52 are respectively provided with a pin shaft 55 for connecting with the push rod 30 and the fixing hole of the accessory 20, the axis of the pin shaft 55 is perpendicular to the axis of the screw 53, the sliding part 52 is in threaded connection with the screw 53, and under the rotation action of the screw 53, the sliding part 52 moves along the axial direction of the screw 53.
Specifically, the sliding member 52 includes a middle cylindrical structure and two pins 55 symmetrically disposed at two ends of the cylindrical structure, and the two pins 55 are used as a connecting shaft for connecting the push rod 30 and the accessory 20. In addition, when the slider 52 moves in the axial direction of the screw 53 by the rotation of the screw 53, the distance between the slider 52 and the stator 51 can be adjusted by rotating the screw 53, thereby facilitating the attachment and detachment. In order to realize the threaded connection between the screw 53 and the sliding member 52, a threaded hole is formed in the cylindrical structure in the middle of the sliding member 52, the axis of the threaded hole is perpendicular to the axis of the pin 55 at the two ends of the sliding member 52, and the screw 53 passes through the threaded hole in the sliding member 52. The fixing nut 54 is also in threaded connection with the screw 53, the fixing nut 54 is located outside the sliding part 52, and during the operation of the accessory 20, the fixing nut 54 is in close contact with the sliding part 52 to prevent the distance between the fixing part 51 and the sliding part 52 from changing.
In an embodiment of the present invention, the quick-change device further includes a limiting plate 56, and the limiting plate 56 is used for realizing axial limiting of the screw 53. In order to enable the limit plate 56 to axially limit the screw 53, for example, a circumferential groove is formed at the end of the screw 53 close to the fixing member 51, a slot is formed in the fixing member 51, the end of the screw 53 located outside the circumferential groove is located in the slot, and the limit plate 56 is fixedly connected with the fixing member 51 and limits the end in the slot. In addition to the above, the end of the screw 53 for connecting with the fixing member 51 may be provided with a protrusion, and the protrusion may be further provided in the slot of the fixing member 51. In addition, in order to allow the screw 53 to freely rotate in the slot of the fixture 51, the size of the aperture of the slot of the fixture 51 should be at least slightly larger than the diameter of the screw 53.
Further, in order to facilitate the filling of lubricating oil into the shaft hole of the fixing member 51, an oil injection port is further formed in the fixing member 51. The oil filler hole may be a circular hole, and the diameter of the oil filler hole may be perpendicular to the diameter of the shaft hole of the fixing member 51.
Fig. 3 is a schematic structural diagram of an excavator working apparatus according to an embodiment of the present invention, and as shown in fig. 3, the working apparatus includes an arm 10, a link 40, a push rod 30, an accessory 20, and an excavator accessory quick-change device according to any one of the embodiments. The fastener 51 of the quick-change device is used to connect the stick 10 to the accessory 20, and the slider 52 is used to connect the accessory 20 to the push rod 30. Illustratively, accessory 20 is a bucket; it should be understood that in other embodiments, accessory 20 may be other than a bucket.
Illustratively, the bucket is provided with two sets of connecting shaft mounting holes which are oppositely opened, and the two sets of connecting shaft mounting holes which are oppositely opened are fixedly connected with the fixed piece 51 and the sliding piece 52 respectively. Each group of connecting shaft mounting holes on the bucket comprise two ear plates, and a certain distance is arranged between the two ear plates of each group at intervals. At this time, a certain distance is also arranged between the axes of the two groups of connecting shaft mounting holes on the bucket, so that the fixing piece 51 of the quick-change device is mounted between the two lug plates of the first group of connecting shaft mounting holes, and the left pin shaft 55 and the right pin shaft 55 of the sliding piece 52 are respectively mounted in the two lug plates of the second group of connecting shaft mounting holes. In addition, the end of the arm 10 is similarly provided with an open connecting shaft mounting hole, and the connecting shaft mounting holes at the end of the arm 10 are also provided on the ear plates at two intervals at the end of the arm 10.
During installation, the sliding part 52 can be close to the fixing part 51 by rotating the screw 53, after the quick-change device is installed between the two sets of connecting shaft installation holes, the sliding part 52 is further away from the fixing part 51 by further rotating the screw 53, the fixing part 51 is located between the two lug plates of the first set of connecting shaft installation holes, and the two pin shafts 55 of the sliding part 52 are respectively located in the two opening installation holes of the second set of connecting shaft installation holes; therefore, the connecting shaft further passes through the shaft holes at the two ends of the fixing piece 51, the first group of connecting shaft mounting holes of the accessory 20 and the connecting shaft mounting hole of the arm 10, that is, the fixing piece 51 is integrally connected with the two lug plates at the two ends of the fixing piece 51 and the two lug plates at the end part of the arm 10 by the connecting shaft, and the fixing piece 51, the arm 10 and the accessory 20 can only rotate relative to the connecting shaft.
Similarly, the end of the push rod 30 also has an open coupling shaft hole, and the coupling shaft hole on the push rod 30 is used for connecting with the slide piece 52 of the quick-change device. For example, the connecting shaft hole of the push rod 30 may also include two ear plates, and each ear plate has a through hole with an opening at one side, when the push rod 30 and the sliding member 52 are in a connected state, the two ear plates of the push rod 30 are respectively sleeved on two pin shafts 55 of the sliding member 52, and in the connected state, the pin shafts 55 at each end of the sliding member 52 of the quick-change device are respectively sleeved with an ear plate of the second set of connecting shaft mounting holes of the bucket and an ear plate at the end of the push rod 30.
In the excavator working apparatus in the above embodiment, the first group of coupling shaft mounting holes of the attachment 20, the arm 10, and the fixing piece 51 are coupled by the coupling shaft, and the coupling shaft is axially positioned by the shaft end baffle. The push rod 30, the sliding member 52 and the second set of connecting shaft mounting holes of the accessory 20 are connected by the pin shafts 55 at both ends of the sliding member 52, and in addition, in order to further ensure the connection reliability of the working device, shaft end baffles can be respectively additionally arranged on the outer sides of the pin shafts 55 at both ends of the sliding member 52.
Correspondingly, the utility model also discloses an excavator, and the excavator comprises the excavator accessory quick-change device or the excavator working device in any embodiment.
Through the embodiment, the excavator accessory quick-change device is simple in overall structure and convenient to install; compared with the common quick-change device for the excavator accessories in the prior art, the quick-change device for the excavator accessories has the advantages that the number of mounting parts is small, the number of connecting shafts is small, the cost is saved, and the manufacturing cost of the quick-change device is about 50% lower than that of the conventional quick-change device with the same tonnage. In addition, by adopting the quick-change device disclosed by the utility model, the distance between the excavator accessory and the bucket rod is smaller, so that the stability of the excavator in the working process is improved, the damage probability of part of accessories is reduced, and the working efficiency is improved.
Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments and/or in combination with or instead of the features of the other embodiments in the present invention.
The above-mentioned embodiments illustrate and describe the basic principles and main features of the present invention, but the present invention is not limited to the above-mentioned embodiments, and those skilled in the art should make modifications, equivalent changes and modifications without creative efforts to the present invention within the protection scope of the technical solution of the present invention.
Claims (10)
1. A quick-change device for an excavator accessory is characterized by comprising a fixing piece, a sliding piece, a screw rod and a fixing nut,
the fixing piece is used for connecting the bucket rod and the accessory, and is provided with a shaft hole for mounting the connecting shaft;
the axis of the screw is perpendicular to the axis of the shaft hole of the fixing piece, and one end of the screw is rotatably connected with the fixing piece;
the sliding part is in threaded connection with the screw rod, and moves along the axial direction of the screw rod under the rotating action of the screw rod.
2. The excavator accessory quick-change device of claim 1, further comprising a limiting plate, wherein the limiting plate is used for realizing axial limiting of the screw.
3. The quick-change device for the excavator accessories of claim 2, wherein a circumferential groove is formed in the end portion, close to the fixing piece, of the screw rod, a slotted hole is formed in the fixing piece, the end portion, located on the outer side of the circumferential groove, of the screw rod is located in the slotted hole, and the limiting plate is fixedly connected with the fixing piece and limits the end portion in the slotted hole.
4. The quick-change device for excavator attachments according to claim 1, wherein the fixing nut is located on the outer side of the sliding member, and the fixing nut is in threaded connection with the screw rod.
5. The quick-change device for excavator attachments of claim 1 wherein the fixing member has an oil injection port.
6. An excavator working apparatus, wherein the working apparatus comprises a bucket rod, a connecting rod, a push rod, an accessory and the excavator accessory quick-change device as claimed in any one of claims 1 to 5.
7. The excavator working apparatus of claim 6 wherein the attachment is provided with two sets of oppositely open connecting shaft mounting holes, the two sets of oppositely open connecting shaft mounting holes being fixedly connected with the fixed member and the sliding member, respectively; or
The accessory is a bucket.
8. The excavator work apparatus of claim 6 wherein the push rod and the end of the stick each have an open connecting shaft mounting hole.
9. The excavator working apparatus of claim 7 further comprising a connecting shaft, wherein the attachment, the dipper, and the fixture are connected by the connecting shaft, and the connecting shaft is axially positioned by a shaft end baffle.
10. An excavator, characterized in that the excavator comprises the excavator accessory quick-change device as claimed in any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220016136.1U CN216689517U (en) | 2022-01-05 | 2022-01-05 | Excavator accessory quick-change device, excavator working device and excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220016136.1U CN216689517U (en) | 2022-01-05 | 2022-01-05 | Excavator accessory quick-change device, excavator working device and excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216689517U true CN216689517U (en) | 2022-06-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220016136.1U Active CN216689517U (en) | 2022-01-05 | 2022-01-05 | Excavator accessory quick-change device, excavator working device and excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216689517U (en) |
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2022
- 2022-01-05 CN CN202220016136.1U patent/CN216689517U/en active Active
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