CN220100021U - Accessory quick-change mechanism, working device and loader - Google Patents
Accessory quick-change mechanism, working device and loader Download PDFInfo
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- CN220100021U CN220100021U CN202321644298.0U CN202321644298U CN220100021U CN 220100021 U CN220100021 U CN 220100021U CN 202321644298 U CN202321644298 U CN 202321644298U CN 220100021 U CN220100021 U CN 220100021U
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- 230000007246 mechanism Effects 0.000 title claims abstract description 25
- 230000000712 assembly Effects 0.000 claims abstract description 14
- 238000000429 assembly Methods 0.000 claims abstract description 14
- 230000009471 action Effects 0.000 claims abstract description 7
- 230000008859 change Effects 0.000 claims description 20
- 230000000670 limiting effect Effects 0.000 claims description 8
- 238000005452 bending Methods 0.000 claims description 6
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000002633 protecting effect Effects 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Abstract
The utility model discloses an accessory quick-change mechanism, a working device and a loader, which comprise a quick-change bracket, a quick-change oil cylinder and a quick-change pin; the quick-change bracket comprises a lower supporting seat, a first hinge assembly, a second hinge assembly and a front cross beam; the first hinge assembly is positioned in the middle area of the lower supporting seat and is used for being connected with the pull rod, the second hinge assembly is positioned in the two side areas of the lower supporting seat and is used for being connected with the movable arm, and the front cross beam penetrates through the first hinge assembly and is fixedly connected with the second hinge assemblies at the two sides; the pair of quick-change oil cylinders are symmetrically and vertically arranged above a lower supporting seat between the first hinge assembly and the second hinge assemblies at two sides; the quick-change pin hinged with the quick-change oil cylinder penetrates into the guide groove of the lower supporting seat, the quick-change oil cylinder is controlled to drive the quick-change pin to move along the guide groove, and the clamping action of the quick-change bracket and the accessory is completed through the quick-change pin. The utility model has high structural strength, convenient disassembly and maintenance, simple operation and high efficiency of replacement, and can meet the requirements of time and labor saving of customers.
Description
Technical Field
The utility model belongs to the technical field of loaders, and particularly relates to an accessory quick-change mechanism and a loader.
Background
The loader is widely applied to the engineering machinery of mines, ports, wharfs, construction sites, stations, goods yards and other sites, and is mainly used for shovel loading, transferring and other relevant working conditions. Along with the diversification of the requirements of the loader users, the types of the loader operation accessories are also continuously expanded, such as wood clamping pliers, pipe gripping machines, hoisting machines and the like. Aiming at the same place and different working conditions, different types of accessories need to be replaced, the manual replacement is time-consuming and labor-consuming, the labor cost is increased, and the working efficiency is greatly influenced; each loader manufacturer provides a loader quick change device to a customer, and regarding market feedback of the existing quick change device, the following problems are often presented:
1. structural strength problems such as deformation, cracking and the like of the quick-change bracket caused by different severe working conditions;
2. the quick-change device in the existing market mostly adopts a mode that a bidirectional quick-change oil cylinder is arranged in a semi-open cavity below a bracket to be connected with a quick-change pin, so that the coaxiality test of an accessory hinge hole and the quick-change pin is extremely high after long-time use and collision, and the phenomenon of unsmooth matching action usually occurs;
3. under the condition of the arrangement form, the quick-change oil cylinder is just fixed in a contact manner, and is impacted and vibrated by the accessory and the bracket for a long time, so that the service life of the quick-change oil cylinder is reduced, and meanwhile, the quick-change oil cylinder is embedded, so that the maintenance convenience is inferior to that of an external oil cylinder.
Disclosure of Invention
According to the defects of the prior art, the novel accessory quick-change mechanism is high in structural strength, convenient to assemble, disassemble and maintain, simple to operate, high in replacement efficiency and capable of meeting the requirements of time and labor saving of customers.
The utility model adopts the following technical scheme:
in a first aspect, the utility model discloses an accessory quick-change mechanism which comprises a quick-change bracket, a quick-change oil cylinder and a quick-change pin; the quick-change bracket comprises a lower supporting seat for bearing the rigid component, a first hinge assembly, a second hinge assembly and a front cross beam used as an accessory hanging point; the first hinge assembly is positioned in the middle area of the lower supporting seat and is used for being connected with a pull rod of the working device, the second hinge assembly is positioned in the two side areas of the lower supporting seat and is used for being connected with a movable arm of the working device, and the front cross beam penetrates through the first hinge assembly and is fixedly connected with the second hinge assemblies at the two sides; the pair of quick-change oil cylinders are symmetrically and vertically arranged above a lower supporting seat between the first hinge assembly and the second hinge assemblies at two sides; and a quick-change pin hinged with the quick-change oil cylinder penetrates into the guide groove of the lower supporting seat, the quick-change oil cylinder is controlled to drive the quick-change pin to move along the guide groove, and the clamping action of the quick-change bracket and the accessory is completed through the quick-change pin.
In some embodiments, the first hinge assembly is comprised of a pair of middle hinge brackets that are opposite each other; the top surfaces of the two middle hinge brackets are fixedly connected with the front cross beam, and the bottom surfaces of the two middle hinge brackets are fixedly connected with the top surface of the lower supporting seat; the two middle hinge brackets are respectively provided with a hinge hole which is coaxially arranged and is used for being matched and connected with the pull rod.
In some embodiments, the second hinge assembly is composed of a first side hinge bracket and a second side hinge bracket positioned outside the first side hinge bracket and fixedly connected with the first side hinge bracket; the bottom of the inner side surface of the first side hinge frame is fixedly connected with the outer side surface of the lower supporting seat, and the top of the inner side surface of the first side hinge frame is fixedly connected with the front cross beam; the first side hinge frame and the second side hinge frame are respectively provided with a hinge hole which is coaxially arranged and is used for being matched and connected with the movable arm.
In some embodiments, a limiting block which has a limiting protection function on the relative movement of the quick-change bracket and the working device is fixed between the first side hinge frame and the second side hinge frame.
In some embodiments, a symmetrically arranged rear cross beam is mounted at a top position between the first hinge assembly and the two side second hinge assemblies; and a hanging plate for hanging the quick-change oil cylinder is arranged on the rear cross beam.
In some embodiments, the quick-change pin is square or rectangular in structure, and the cross-sectional area of the bottom insertion end of the quick-change pin is smaller than the overall cross-sectional area.
In some embodiments, a connecting plate which is used for connecting and increasing structural strength is arranged between the front cross beam and the top surface of the first hinge assembly.
In some embodiments, two indication rods are arranged on the outer peripheral surface of the front cross beam, and the external gear opening distance of the two indication rods is slightly smaller than the internal gear opening distance of the two upper hanging points of the accessory.
In some embodiments, the lower supporting seat is a cavity structure formed by a bottom plate, a front side plate and a rear bending plate, the bottom plate and the rear bending plate between the first hinge assembly and the second hinge assemblies at two sides are respectively provided with a coaxial quick-change pin hole, and a guide groove surrounded by a plurality of vertical plates is arranged between the two corresponding quick-change pin holes.
In a second aspect, the utility model discloses a working device comprising a pull rod, a movable arm and an accessory, wherein the accessory quick-change mechanism is assembled between the accessory and the pull rod and the movable arm.
In a third aspect, the utility model discloses a loader equipped with the above-mentioned attachment quick-change mechanism; alternatively, the above-described working device is equipped.
The utility model has the beneficial effects that:
compared with the prior art, the technical scheme provided by the utility model has the advantages of high structural strength, convenience in disassembly and maintenance, simplicity in operation, good observation field of view, high replacement efficiency, and small influence on the smoothness of the action of clamping the quick-change pin inserting attachment after long-term collision and abrasion use.
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 specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. It is evident that the drawings in the following description are only examples, from which other drawings can be obtained by a person skilled in the art without the inventive effort.
In the drawings:
FIG. 1 is a schematic diagram of the back structure of an attachment quick change mechanism of the present utility model;
FIG. 2 is a schematic diagram of the front structure of the quick-change mechanism of the present utility model;
fig. 3 is a schematic side view of the quick-change mechanism of the present utility model.
The attached drawings are identified: 1. a quick-change bracket; 2. quick-change oil cylinders; 3. a quick-change pin; 4. an oil cylinder pin; 101. a front cross member; 102. a rear cross member; 103. a lower support base; 104. a first side hinge bracket; 105. a middle hinge bracket; 106. a hanger plate; 107. a connecting plate; 108. an indication rod; 109. a second side hinge bracket; 141. a first limit; 142. and (5) second limit.
It should be noted that these drawings and the written description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept to those skilled in the art by referring to the specific embodiments.
Description of the embodiments
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model, and the following embodiments are used to illustrate the present utility model, but are not intended to limit the scope of the present utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1, 2 and 3, the quick-change mechanism for the accessory comprises a quick-change bracket 1, a quick-change oil cylinder 2, a quick-change pin 3 and an oil cylinder pin 4. The quick-change oil cylinder 2, the quick-change pin 3 and the oil cylinder pin 4 are integrally arranged outside the quick-change bracket 1, so that the quick-change oil cylinder is convenient to disassemble, assemble, maintain and observe.
The quick-change bracket 1 comprises a front cross beam 101, a rear cross beam 102, a lower support seat 103, a first hinge assembly and a second hinge assembly; the lower supporting seat is of a cavity structure with a guide groove; the first hinge assembly is positioned in the middle area of the lower supporting seat and is used for being connected with a pull rod of the working device; the second hinge assemblies are positioned at the two side areas of the lower supporting seat and are used for being connected with the movable arm of the working device; the front cross member 101 is used as an attachment point, penetrating the first hinge assembly and fixedly connected to the second hinge assemblies on both sides. A pair of quick-change cylinders 2 are symmetrically and vertically arranged above a lower supporting seat 103 positioned between the first hinge assembly and the second hinge assemblies at two sides; the quick-change pin 3 is hinged with the quick-change oil cylinder 2 through the oil cylinder pin 4, the quick-change pin 3 penetrates into a guide groove of the lower supporting seat 103, the quick-change oil cylinder 2 is controlled to drive the quick-change pin 3 to move along the guide groove, and clamping actions of the quick-change bracket 1 and the accessory are completed through the quick-change pin 3.
With continued reference to FIG. 1, the first hinge assembly is comprised of a pair of opposed middle hinge brackets 105; the top surfaces of the two middle hinge frames 105 are fixedly connected with the front cross beam 101, and the bottom surfaces of the two middle hinge frames 105 are fixedly connected with the top surface of the lower supporting seat 103; the two middle hinge brackets 105 are provided with a hinge hole which is coaxially arranged and is used for being matched and connected with the pull rod.
With continued reference to FIG. 1, the second hinge assembly is comprised of a first side hinge bracket 104 and a second side hinge bracket 109 positioned outboard of and fixedly coupled to the first side hinge bracket 104; the bottom of the inner side surface of the first side hinge frame 104 is fixedly connected with the outer side surface of the lower supporting seat 103, and the top of the inner side surface of the first side hinge frame 104 is fixedly connected with the front cross beam 101; the first side hinge bracket 104 and the second side hinge bracket 109 are provided with a hinge hole coaxially arranged for being connected with the movable arm in a matching manner.
The further scheme is as follows: with continued reference to fig. 2, a first limit 141 and a second limit 142 for limiting and protecting the relative movement of the quick-change bracket 1 and the working device are fixed between the first side hinge bracket 104 and the second side hinge bracket 109. Meanwhile, the first limit 141 and the second limit 142 also play a role in reinforcing the structural strength of the quick-change bracket 1.
The further scheme is as follows: with continued reference to fig. 1, a rear cross beam 102 is installed at the top position between the middle hinge bracket 105 and the first side hinge brackets 104 at both sides, so that the strength of the integral frame structure of the quick-change bracket 1 is further enhanced, and a hanger plate 105 is arranged on the rear cross beam 102, and the hanger plate 105 is hinged with the quick-change cylinder 2 through a cylinder pin 4.
The preferable scheme is as follows: the front beam 101 and the rear beam 102 are seamless steel tube sections, so that the structural strength is enhanced, and the materials are easy to select and process because the front beam 101 and the rear beam 102 are standard sections.
The further scheme is as follows: with continued reference to fig. 1, 2 and 3, the front cross member 101 and the middle hinge bracket 105 are provided with a connecting plate 107 for connection and structural strength.
The further scheme is as follows: with continued reference to fig. 1, 2 and 3, the front beam 1 is used as a hanging point of a quick-change accessory of a loader, two indicating rods 108 are arranged on the upper edge of the front beam 101, the external gear opening distance of the two indicating rods 108 is set to be slightly smaller than the internal gear opening distance of the two upper hanging points of the quick-change accessory of the loader, the function is firstly to prevent the quick-change accessory from moving left and right, and to protect the quick-change pin 3 from slowing down or avoiding being damaged by transverse shearing force, and the function is secondly to limit the position for installing and clamping the quick-change accessory, so that the quick-change accessory and the quick-change bracket 1 are simpler and more convenient to install.
The preferable scheme is as follows: with continued reference to fig. 3, the quick-change pin 3 has a square or rectangular structure, so that the contact area between the quick-change pin 3 and the guide groove of the lower support 103 is increased, that is, the shearing force resistance of the quick-change pin 3 is maximized. Meanwhile, the cross section area of the bottom insertion end of the quick-change pin 3 is smaller than the whole cross section area, and the quick-change pin can be set to be of a trapezoid structure, so that the quick-change pin 3 moves smoothly along the guide groove of the lower supporting seat 103, and clamping is more accurate.
It should be noted that, the stroke of the quick-change cylinder 2 needs to ensure that the quick-change pin 3 is always located in the guide groove of the lower support base 103, and when the quick-change cylinder 2 is located at the minimum mounting distance, the bottom of the insertion end of the quick-change pin 3 does not leak out of the bottommost end of the lower support base 103.
With continued reference to fig. 3, since the entire lower portion of the quick-change bracket 1 is an impact point during use, the lower support base 103 is configured as a cavity structure with guide grooves to enhance the structural strength of the portion of the quick-change bracket 1. The lower supporting seat 103 is formed by welding a bottom plate, a front side plate and a rear bending plate, a coaxial quick-change pin hole is respectively arranged on the bottom plate and the rear bending plate between the middle hinge frame 105 and the first side hinge frames 104 on two sides, and a guide groove surrounded by a plurality of vertical plates is arranged between the two quick-change pin holes corresponding to the upper part and the lower part.
The utility model also discloses a working device which comprises a pull rod, a movable arm and an accessory, wherein the accessory quick-change mechanism is assembled between the accessory and the pull rod as well as between the accessory and the movable arm.
The utility model also discloses a loader provided with the accessory quick-change mechanism, wherein the quick-change oil cylinder 5 is connected with the hanging plate 107 on the quick-change bracket 1 through the oil cylinder pin 4, and the other end of the quick-change oil cylinder 2 is connected with the quick-change pin 3 through the oil cylinder pin 4. Through third link hydraulic system, control quick change hydro-cylinder 2 piston rod drive quick change round pin 3 along the guide way motion of lower supporting seat 103, accomplish the chucking action of quick change bracket 1 and loader quick change accessory through quick change round pin 3, realize the function of quick change different kinds of loader accessories. The utility model has high structural strength, convenient disassembly and maintenance, simple operation and high efficiency of replacement, and can meet the requirements of time and labor saving of customers.
In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the utility model may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features contained in other embodiments, but not others, combinations of features of different embodiments are equally meant to be within the scope of the utility model and form different embodiments. For example, in the above embodiments, those skilled in the art can use the above embodiments in combination according to known technical solutions and technical problems to be solved by the present utility model.
The foregoing description is only illustrative of the preferred embodiment of the present utility model, and is not to be construed as limiting the utility model, but is to be construed as limiting the utility model to any simple modification, equivalent variation and variation of the above embodiments according to the technical matter of the present utility model without departing from the scope of the utility model.
Claims (11)
1. An accessory quick change mechanism, comprising:
quick-change bracket includes:
a lower support for carrying the rigid member;
the first hinge assembly is positioned in the middle area of the lower supporting seat and is used for being connected with a pull rod of the working device;
the second hinge assemblies are positioned in the two side areas of the lower supporting seat and are used for being connected with the movable arms of the working device;
the front cross beam is used as an accessory hanging point, penetrates through the first hinge assembly and is fixedly connected with the second hinge assemblies at two sides;
the quick-change oil cylinders are symmetrically and vertically arranged above a lower supporting seat between the first hinge assembly and the second hinge assemblies at two sides;
and the quick-change pin hinged with the quick-change oil cylinder penetrates into the guide groove of the lower supporting seat, and the quick-change oil cylinder is controlled to drive the quick-change pin to move along the guide groove, so that the clamping action of the quick-change bracket and the accessory is completed through the quick-change pin.
2. An accessory quick change mechanism as claimed in claim 1, wherein:
the first hinge assembly is composed of a pair of middle hinge brackets which are opposite to each other;
the top surfaces of the two middle hinge brackets are fixedly connected with the front cross beam, and the bottom surfaces of the two middle hinge brackets are fixedly connected with the top surface of the lower supporting seat;
the two middle hinge brackets are respectively provided with a hinge hole which is coaxially arranged and is used for being matched and connected with the pull rod.
3. An accessory quick change mechanism as claimed in claim 1, wherein:
the second hinge assembly consists of a first side hinge frame and a second side hinge frame which is positioned outside the first side hinge frame and fixedly connected with the first side hinge frame;
the bottom of the inner side surface of the first side hinge frame is fixedly connected with the outer side surface of the lower supporting seat, and the top of the inner side surface of the first side hinge frame is fixedly connected with the front cross beam;
the first side hinge frame and the second side hinge frame are respectively provided with a hinge hole which is coaxially arranged and is used for being matched and connected with the movable arm.
4. An accessory quick change mechanism as claimed in claim 3, wherein:
and a limiting block which has a limiting and protecting effect on the relative movement of the quick-change bracket and the working device is fixed between the first side hinge frame and the second side hinge frame.
5. An accessory quick change mechanism as claimed in claim 1, wherein:
a rear cross beam which is symmetrically arranged is respectively arranged at the top position between the first hinge assembly and the second hinge assemblies at the two sides;
and a hanging plate for hanging the quick-change oil cylinder is arranged on the rear cross beam.
6. An accessory quick change mechanism as claimed in claim 1, wherein:
the quick-change pin is of a square or rectangular structure, and the cross-sectional area of the bottom insertion end of the quick-change pin is smaller than the whole cross-sectional area.
7. An accessory quick change mechanism as claimed in claim 1, wherein:
and a connecting plate which plays a role in connecting and increasing the structural strength is arranged between the front cross beam and the top surface of the first hinge assembly.
8. An accessory quick change mechanism as claimed in claim 1, wherein:
the outer peripheral surface of the front cross beam is provided with two indicating rods, and the external gear opening distance of the two indicating rods is slightly smaller than the internal gear opening distance of the two upper hanging points of the accessory.
9. An accessory quick change mechanism as claimed in claim 1, wherein:
the lower supporting seat is a cavity structure consisting of a bottom plate, a front side plate and a rear bending plate, a coaxial quick-change pin hole is respectively arranged on the bottom plate and the rear bending plate between the first hinge assembly and the second hinge assemblies at two sides, and a guide groove surrounded by a plurality of vertical plates is arranged between the two corresponding quick-change pin holes.
10. The utility model provides a working device, includes pull rod, movable arm and accessory, its characterized in that:
an accessory quick change mechanism according to any one of claims 1 to 9 is fitted between the accessory and the tie rod and boom.
11. A loader, characterized in that:
equipped with the attachment quick change mechanism of any one of claims 1 to 9; alternatively, a working device according to claim 10 is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321644298.0U CN220100021U (en) | 2023-06-27 | 2023-06-27 | Accessory quick-change mechanism, working device and loader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321644298.0U CN220100021U (en) | 2023-06-27 | 2023-06-27 | Accessory quick-change mechanism, working device and loader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220100021U true CN220100021U (en) | 2023-11-28 |
Family
ID=88864117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321644298.0U Active CN220100021U (en) | 2023-06-27 | 2023-06-27 | Accessory quick-change mechanism, working device and loader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220100021U (en) |
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2023
- 2023-06-27 CN CN202321644298.0U patent/CN220100021U/en active Active
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