CN112227438A

CN112227438A - Quick change device and excavator

Info

Publication number: CN112227438A
Application number: CN202011081323.XA
Authority: CN
Inventors: 陈斌斌
Original assignee: Sany Heavy Machinery Ltd
Current assignee: Sany Heavy Machinery Ltd
Priority date: 2020-10-09
Filing date: 2020-10-09
Publication date: 2021-01-15

Abstract

The invention provides a quick-change device and an excavator, belongs to the technical field of excavators, and is used for connecting machines and accessories. The body is provided with a hooking component, the body is connected with the machine tool, and the hooking component is hooked with the accessory so as to connect the machine tool with the accessory. The accessory is hooked on the hooking component in the installation process, the accessory is taken down from the hooking component in the disassembly process, and the accessory is separated from the hooking component, so that the replacement efficiency of the accessory can be improved, and the aim of quickly replacing the accessory is fulfilled. When the quick-change device is applied to an excavator, the hooking component of the quick-change device is hooked on the accessory, so that the accessory is hooked with the quick-change device. When the hanger is replaced, the hanger is separated from the accessory, and the disassembly and the assembly are convenient.

Description

Quick change device and excavator

Technical Field

The invention relates to the technical field of excavators, in particular to a quick-change device and an excavator.

Background

An excavator is a common construction machine, and the excavator needs to frequently replace accessories according to different operation contents. At present, when the excavator is connected with accessories, the structure is complex, the replacement is not easy, and the replacement of the accessories is time-consuming and labor-consuming.

Disclosure of Invention

The invention aims to provide a quick-change device and an excavator, which can quickly change accessories.

The embodiment of the invention is realized by the following steps:

one aspect of an embodiment of the present invention provides a quick-change device for connecting an implement and an accessory, including a body and a hooking component provided on the body, wherein the body is used for connecting to the implement, and the hooking component is used for hooking to the accessory.

When the accessory is assembled, the accessory is hooked on the hooking component, and when the accessory is disassembled, the accessory is taken down from the hooking component, so that the accessory is separated from the hooking component. The mode of hooking the accessory is adopted, so that the connection is simple, the replacement is convenient, the replacement efficiency of the accessory can be improved, and the purpose of quickly replacing the accessory is achieved.

Optionally, the hooking component comprises a sliding hook and a fixed hook, the sliding hook and the fixed hook both extend out of the body, the sliding hook and the fixed hook respectively face the extending direction of the body, and the sliding hook and the fixed hook are opposite in hook direction and are used for hooking the accessory.

The accessory is hooked on the quick-change device through the fixed hook and the sliding hook, and the hook directions of the fixed hook and the sliding hook are opposite, so that the accessory is hooked by being opened under the hooking force in the opposite direction, and the connection is stable. And the sliding hook can slide, so that the connecting position of the sliding hook and the accessory is convenient to adjust.

Optionally, the sliding hook comprises at least one hook, a strip-shaped through hole matched with the hook is formed in the body, and the hook penetrates through the strip-shaped through hole. The sliding hook is provided with a strip-shaped through hole, and the sliding hook can slide in the strip-shaped through hole. The hook is connected with the accessory through the hook, so that the disassembly is convenient.

Optionally, the fixing hook is fixedly arranged on the body. Is used for fixing and supporting the accessory.

Optionally, a pull rod assembly is arranged on the body and connected with the sliding hook so as to pull the sliding hook to slide in the strip-shaped through hole.

Optionally, the pull rod assembly includes a driving member disposed on the body and a push-pull rod connected to the driving member, and the push-pull rod is connected to the sliding hook. The sliding hook is driven to move by the extension of the push-pull rod, and can slide in the strip-shaped through hole through the hook.

Optionally, the pull rod assembly comprises a fixing portion and a screw rod, the fixing portion is arranged on the body, the screw rod is provided with a threaded hole and penetrates through the threaded hole, and the end portion of the screw rod is connected with the sliding hook. The sliding hook slides in the strip-shaped through hole through the hook by screwing the screw rod.

Optionally, the end of the pull rod assembly connected with the sliding hook is provided with a buckle head, the sliding hook is provided with a buckle groove, and the buckle head is clamped with the buckle groove, so that the sliding hook is detachably connected with the body. Through the block of discount and catching groove, make slip hook and body can dismantle, reach the purpose of being convenient for change.

Optionally, a connecting hole is formed in the body, and the body is fixedly connected with the machine tool through the connecting hole.

In one aspect, the embodiment of the invention provides an excavator, which comprises an excavator body, an accessory and the quick-change device, wherein a bucket rod of the excavator body is connected with a body of the quick-change device, and the accessory is hooked on a hooking component of the quick-change device.

And hooking a sliding hook and a fixed hook on a hooking component of the quick-change device on the accessory so as to hook the accessory and the quick-change device. When the accessory is replaced, the sliding hook is separated from the fixed hook and the accessory, so that the accessory can be replaced quickly and conveniently.

The embodiment of the invention has the beneficial effects that:

according to the quick-change device and the excavator provided by the embodiment of the invention, the hooking component is arranged on the body, the body is connected with the tool, and the hooking component is hooked with the accessory so as to connect the tool with the accessory. The accessory is hooked on the hooking component in the installation process, the accessory is taken down from the hooking component in the disassembly process, and the accessory is separated from the hooking component, so that the replacement efficiency of the accessory can be improved, and the aim of quickly replacing the accessory is fulfilled. When the quick-change device is applied to an excavator, the hooking component of the quick-change device is hooked on the accessory, so that the accessory is hooked with the quick-change device. When the hanger is replaced, the hanger is separated from the accessory, and the disassembly and the assembly are convenient.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic connection diagram of a quick-change device, an excavator body and accessories provided by an embodiment of the invention;

fig. 2 is a schematic structural diagram of a quick-change device according to an embodiment of the present invention;

fig. 3 is a second schematic structural diagram of a quick-change device according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a body of a quick-change device provided in an embodiment of the present invention;

fig. 5 is a schematic structural view of a sliding hook of the quick-change device provided in the embodiment of the present invention;

fig. 6 is a schematic structural view of a screw of the quick-change device provided in the embodiment of the present invention;

fig. 7 is a schematic view of an accessory structure according to an embodiment of the present invention.

Icon: 10-an excavator body; 20-quick change device; 21-body; 211-a base plate; 212-side plate; 213-strip-shaped through holes; 214-a fixation section; 22-sliding hook; 221-connecting plates; 222-a hook; 223-catching grooves; 23-a gasket; 24-a screw; 241-fastening head; 25-fixed hook; 30-an accessory; 31-hook connection.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the 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.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 2, the present embodiment provides a quick-change device 20, which includes a body 21 and a hooking component disposed on the body 21, wherein the body 21 is used for being connected to an implement, and the hooking component is used for being hooked with an accessory 30.

As shown in fig. 3, the body 21 is coupled to the implement and the hooking unit is hooked to the accessory 30, so that the body 21 is hooked to the accessory 30 by the hooking unit to couple the implement to the accessory 30.

The hooking mode is adopted, the structure is simple, the accessory 30 can be replaced quickly, and the replacement efficiency of the accessory 30 is improved.

And, in order to guarantee the connection strength, the body 21 and the hooking member are made of high-strength steel and heat-treated to make the connection stable.

In the quick-change device 20 provided by the embodiment of the invention, the body 21 is provided with the hooking component, the body 21 is connected with the implement, and the hooking component is hooked with the accessory 30 so as to connect the implement with the accessory 30. Adopt the mode of hooking accessory 30 for connect simply, it is convenient to change, during the installation, only need with accessory 30 hook on the hooking component, when dismantling, take off accessory 30 from the hooking component, make accessory 30 and hooking component break away from can, can improve accessory 30's change efficiency, reach the purpose of quick replacement accessory 30.

Specifically, the hooking component comprises a sliding hook 22 and a fixing hook 25, the sliding hook 22 and the fixing hook 25 both extend out of the body 21, the hook directions of the sliding hook 22 and the fixing hook 25 are respectively towards the extending direction of the body 21, and the hook directions of the sliding hook 22 and the fixing hook 25 are opposite to each other for hooking the accessory.

The fixing hook 25 is fixed on the body 21 for fixing and supporting the accessory. The accessory is hooked on the quick-change device through the fixed hook 25 and the sliding hook 22, the hook directions of the fixed hook 25 and the sliding hook 22 are opposite, so that the accessory is hooked by being opened under the hooking force in the opposite direction, and the connection is stable. And the sliding hook 22 can slide, so that the connecting position of the sliding hook 22 and the accessory is convenient to adjust.

The sliding hook 22 includes at least one hook 222, and the hook 222 extends out of the body 21 for hooking the accessory 30. The body 21 is provided with a strip-shaped through hole 213 matched with the hook 222, and the hook 222 penetrates through the strip-shaped through hole 213. A bar-shaped through hole 213 is provided, and the sliding hook 22 is slidable in the bar-shaped through hole 213. The accessory is hooked through the hook 222, so that the disassembly is convenient.

As shown in fig. 5, the slide hook 22 of the present embodiment includes a link plate 221 and two hooks 222 provided on the link plate 221, the two hooks 222 being provided on a face of the link plate 221 in an opposing and parallel manner. When the sliding hook 22 is connected with the body 21, the hook 222 extends out of the body 21, and the two hooks 222 are hooked with the accessory 30 together in the same hooking direction.

As shown in fig. 4, the body 21 includes a bottom plate 211 and side plates 212 oppositely disposed at two ends of the bottom plate 211 to form a U-shaped structure, and the body 21 is provided with connecting holes, illustratively, two connecting holes are respectively disposed on two side plates 212 of the body 21, and the body 21 and the implement are fixedly connected through the connecting holes.

The body 21 is further provided with a strip-shaped through hole 213 matched with the hook 222, the strip-shaped through hole 213 is formed in the bottom plate 211, the two strip-shaped through holes 213 are formed in the embodiment, and the two hooks 222 penetrate through the corresponding strip-shaped through holes 213 respectively.

Because the strip-shaped through hole 213 is provided, the hook 222 can slide in the strip-shaped through hole 213, so that the sliding hook 22 and the body 21 are slidably connected, which facilitates adjustment of the connection position of the sliding hook 22 and the accessory 30.

Specifically, the body 21 is provided with a pull rod assembly, and the pull rod assembly is connected with the sliding hook 22 to pull the sliding hook 22 to slide in the strip-shaped through hole 213.

The pull rod assembly includes a driving member provided on the body 21 and a push-pull rod connected to the driving member, the push-pull rod being connected to the sliding hook 22. The drive member may be a pneumatic or hydraulic cylinder, for example. The driving member drives the push-pull rod to extend and retract, the push-pull rod is connected with the sliding hook 22, the sliding hook 22 is driven to move through the extension and retraction of the push-pull rod, and the sliding hook 22 can slide in the strip-shaped through hole 213 through the hook 222.

It is also possible that the pulling rod assembly includes a fixing portion 214 and a screw 24, the fixing portion 214 is provided with a threaded hole, the screw 24 is sleeved with a gasket 23 and passes through the threaded hole, and an end of the screw 24 is connected with the sliding hook 22. The screw 24 is made to move telescopically by screwing the screw 24, the end of the screw 24 is connected to the slide hook 22, and the slide hook 22 is made to slide in the strip-shaped through hole 213 through the hook 222 by screwing the screw 24.

Also, the body 21 and the sliding hook 22 are detachably coupled for easy detachment. Specifically, the end of the pull rod assembly connected to the sliding hook 22 is provided with a fastening head 241, the sliding hook 22 is provided with a fastening groove 223, and the fastening head 241 is fastened with the fastening groove 223.

The slide hook 22 and the body 21 are detachable by engagement of the locking head 241 and the locking groove 223. Specifically, the end of the push-pull rod is provided with a button head 241, or as shown in fig. 6, the end of the screw rod 24 is provided with a button head 241, and the sliding hook 22 is provided with a button groove 223. When the sliding hook is installed, the fastening head 241 is fastened in the fastening groove 223, so that the sliding hook 22 and the body 21 are detachably connected. When the buckle is disassembled, the buckle head 241 is taken out of the buckle groove 223.

As shown in fig. 1, an embodiment of the present invention further discloses an excavator, which includes an excavator body 10, an accessory 30 and the quick-change device 20 of the above embodiment, where the excavator body 10 corresponds to the implement of the above embodiment, a bucket rod of the excavator body 10 is connected to the body 21 of the quick-change device 20, and the accessory 30 is hooked on a hooking component of the quick-change device 20.

The body 21 of the quick-change device 20 is fixedly connected with the arm of the excavator body 10 through a connecting hole on the body 21, as shown in fig. 7, taking the accessory 30 as a bucket as an example, the accessory 30 is provided with a hooking part 31 matched with the hooking component, the end part of the accessory 30 of the embodiment is provided with two cylindrical hooking parts 31, and the hook 222 and the fixed hook 25 on the sliding hook 22 of the quick-change device 20 are respectively hooked on the two hooking parts 31 of the accessory 30, so that the accessory 30 and the quick-change device 20 are hooked. When the accessory 30 is replaced, the hook 222 and the fixed hook 25 are separated from the hooking part 31 respectively, so that the accessory is convenient to disassemble and assemble, and the purpose of replacing the accessory 30 quickly can be achieved. Of course, the accessory 30 may take other forms.

The excavator comprises the same structure and beneficial effects as the quick-change device 20 in the previous embodiment. The structure and advantages of the quick-change device 20 have been described in detail in the foregoing embodiments, and are not described in detail herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A quick-change device is used for connecting an implement and an accessory and is characterized by comprising a body and a hooking component arranged on the body, wherein the body is used for being connected to the implement, and the hooking component is used for being hooked with the accessory.

2. The quick-change device according to claim 1, wherein the hooking component comprises a sliding hook and a fixed hook, the sliding hook and the fixed hook both extend out of the body, the hooks of the sliding hook and the fixed hook respectively face the extension direction of the body, and the hooks of the sliding hook and the fixed hook are opposite in direction for hooking the accessory.

3. The quick-change device according to claim 2, characterized in that the sliding hook comprises at least one hook, the body is provided with a strip-shaped through hole matching with the hook, and the hook is arranged through the strip-shaped through hole.

4. The quick-change device according to claim 2, characterized in that the fixing hook is fixedly arranged on the body.

5. The quick-change device according to claim 3, wherein a pull rod assembly is arranged on the body, and the pull rod assembly is connected with the sliding hook so as to pull the sliding hook to slide in the strip-shaped through hole.

6. The quick-change device according to claim 5, wherein the pull rod assembly comprises a driving member provided on the body and a push-pull rod connected to the driving member, the push-pull rod being connected to the sliding hook.

7. The quick-change device according to claim 5, wherein the pull rod assembly comprises a fixing portion provided on the body and a threaded rod, the fixing portion is provided with a threaded hole, the threaded rod passes through the threaded hole, and an end of the threaded rod is connected with the sliding hook.

8. The quick-change device according to claim 5, wherein the end of the pull rod assembly connected with the slide hook is provided with a buckle head, the slide hook is provided with a buckle groove, and the buckle head is clamped with the buckle groove, so that the slide hook is detachably connected with the body.

9. The quick-change device according to claim 1, wherein the body is provided with a connecting hole, and the body is fixedly connected with the implement through the connecting hole.

10. An excavator, which is characterized by comprising an excavator body, accessories and the quick-change device as claimed in any one of claims 1 to 9, wherein a bucket rod of the excavator body is connected with a body of the quick-change device, and the accessories are hooked on a hooking component of the quick-change device.