CN212052925U

CN212052925U - Digging machine

Info

Publication number: CN212052925U
Application number: CN202020699975.9U
Authority: CN
Inventors: 徐瑾; 姚祥; 刘军杰
Original assignee: Sany Heavy Machinery Ltd
Current assignee: Sany Heavy Machinery Ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2020-12-01
Anticipated expiration: 2030-04-30

Abstract

The utility model provides an excavator relates to engineering machine tool technical field. The excavator includes a platform, a cab body, a link mechanism and a drive member. The cab main body is connected to the platform in a sliding mode, and the driving piece is connected to the connecting rod mechanism to drive the connecting rod mechanism to extend or shorten, so that the cab main body is driven to move relative to the platform. This excavator uses driving piece drive link mechanism to drive the relative platform of driver's cabin main part and removes for the operating personnel of excavator can observe the operation condition in the driver's cabin better, is favorable to the improvement of operating efficiency.

Description

Digging machine

Technical Field

The utility model relates to an engineering machine tool technical field particularly, relates to an excavator.

Background

When the excavator digs deep, especially deep well operation, along with the excavation depth increases, operating personnel receives the driver's cabin position influence, and it is more and more difficult to observe the pit from the driver's cabin inside, brings adverse effect for normal operation, is unfavorable for the improvement of operating efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an excavator, its driver's cabin main part can the relative platform remove for the operating personnel of excavator can observe the operation condition better in the driver's cabin, is favorable to the improvement of operating efficiency.

The embodiment of the utility model discloses a can realize like this:

the embodiment of the utility model provides an excavator, including platform, driver's cabin main part, link mechanism and driving piece, driver's cabin main part sliding connection is in the platform, and the driving piece is connected in link mechanism with drive link mechanism extension or shorten, and then the relative platform of drive driver's cabin main part removes.

In an alternative embodiment, the link mechanism includes a first link and a second link, both ends of the first link are respectively rotatably connected to the platform and one end of the second link, and the other end of the second link is rotatably connected to the cab body; the driving part is rotatably connected to the first connecting rod or the second connecting rod to drive the first connecting rod or the second connecting rod to rotate, so that the connecting rod mechanism is driven to extend or shorten.

In an alternative embodiment, the driving member is disposed on the platform and connected to the first link, and the driving member is configured to drive the first link to rotate relative to the platform.

In an alternative embodiment, the driving member is disposed on the cab body and connected to the second link, and the driving member is configured to drive the second link to rotate relative to the cab body.

In an alternative embodiment, the linkage mechanism includes a third link and a fourth link, both ends of the third link are respectively rotatably connected to the platform and one end of the fourth link, and the other end of the fourth link is rotatably connected to the cab body.

In an alternative embodiment, the first link and the fourth link are equal in length and the second link and the third link are equal in length, such that the first link, the second link, the third link, and the fourth link collectively form a parallelogram structure.

In an alternative embodiment, the first, second, third and fourth links are equal in length such that the first, second, third and fourth links collectively form a diamond-shaped structure.

In an optional embodiment, the cab body comprises a base and a cab, the base is slidably connected to the platform and is arranged on the base, the base is provided with a supporting seat, the supporting seat is located on one side, close to the platform, of the cab, and the second connecting rod and the fourth connecting rod are rotatably connected to the supporting seat.

In an alternative embodiment, the platform is provided with a slide rail, and the base is in sliding fit with the slide rail.

In an alternative embodiment, the drive member comprises a cylinder, which is rotationally connected to the linkage.

The utility model discloses beneficial effect includes:

the excavator includes a platform, a cab body, a link mechanism and a drive member. The cab main body is connected to the platform in a sliding mode, and the driving piece is connected to the connecting rod mechanism to drive the connecting rod mechanism to extend or shorten, so that the cab main body is driven to move relative to the platform. This excavator uses driving piece drive link mechanism to drive the relative platform of driver's cabin main part and removes for the operating personnel of excavator can observe the operation condition in the driver's cabin better, is favorable to the improvement of operating efficiency.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required 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 structural diagram of an excavator in the embodiment of the present invention;

fig. 2 is a schematic structural view of the link mechanism with a diamond structure when shortened according to the embodiment of the present invention;

fig. 3 is a schematic structural view of the link mechanism with a diamond structure according to the embodiment of the present invention during extension;

fig. 4 is a schematic structural view of the linkage mechanism of the parallelogram structure according to the embodiment of the present invention when shortened;

fig. 5 is a schematic structural view of the linkage mechanism with parallelogram structure in the embodiment of the present invention when it is extended.

Icon: 100-an excavator; 110-a platform; 112-a slide rail; 114-a connecting seat; 130-cab body; 132-a base; 134-cab; 135-a support seat; 150-a linkage mechanism; 151-first link; 152-a first pin; 153-a second link; 154-a second pin; 155-third link; 157-a fourth link; 170-driving member.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying 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, as 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 accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to 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, if the terms "upper", "lower", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the products of the present invention are used, the description is only for convenience of description and simplification, but the indication or suggestion that the indicated device or element must have a specific position, be constructed and operated in a specific orientation, and thus, should not be interpreted as a limitation of the present invention.

Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.

Referring to fig. 1 and 2, the present embodiment provides an excavator 100, which includes a platform 110, a cab body 130, a link mechanism 150, and a driving member 170. The cab body 130 is slidably connected to the platform 110, and the driving member 170 is connected to the link mechanism 150 to drive the link mechanism 150 to extend or retract, thereby driving the cab body 130 to move relative to the platform 110.

Referring to fig. 2 and 3, the platform 110 is a frame platform of the excavator 100. In the present embodiment, the platform 110 is provided with the slide rails 112, the slide rails 112 extend in the front-rear direction of the platform 110, and the cab body 130 is slidably engaged with the slide rails 112 so as to be able to move forward or backward. The platform 110 is provided with a connecting seat 114 connected to the link mechanism 150. The connecting base 114 is perpendicular to the platform 110, the connecting base 114 has a certain height, and the link mechanism 150 is supported by a certain height when connected to the connecting base 114, so as to avoid interference of the platform 110 when the link mechanism 150 extends or contracts. In the present embodiment, the surface of the platform 110 is a horizontal surface by default.

The cab body 130 is located entirely on the front side of the platform 110. The cab body 130 includes a base 132 slidably coupled to the platform 110 and a cab 134 disposed on the base 132. The base 132 is provided with a support base 135, and the support base 135 is located on one side of the cab 134 close to the platform 110. Specifically, the base 132 is slidably engaged with the sliding rail 112, and the cab 134 is disposed on the base 132, and when the base 132 slides relative to the sliding rail 112 of the platform 110, the cab 134 is driven to move together. In order to conveniently fix the link mechanism 150, a supporting seat 135 is fixed on one side of the cab 134 close to the platform 110, the supporting seat 135 is spaced apart from the cab 134, the link mechanism 150 is connected to the supporting seat 135, and the link mechanism 150 can push the supporting seat 135, so as to push the whole cab body 130 to move. The supporting base 135 is disposed perpendicular to the base 132, and the supporting base 135 has a certain height to facilitate the extension or contraction of the link mechanism 150, so as to prevent the link mechanism 150 from being interfered by the base 132. In other embodiments, the supporting seat 135 can be disposed at other positions, such as directly and fixedly connected to the cab 134, only to ensure the connection stability of the link mechanism 150.

In other embodiments, the sliding rail 112 may be disposed on the base 132, and the platform 110 is slidably engaged with the sliding rail 112, or the base 132 may be slidable relative to the platform 110.

In the present embodiment, the link mechanism 150 includes a first link 151 and a second link 153. Both ends of the first link 151 are rotatably connected to the platform 110 and one end of the second link 153, respectively, and the other end of the second link 153 is rotatably connected to the cab body 130. The driving member 170 is rotatably connected to the first link 151 or the second link 153 to drive the first link 151 or the second link 153 to rotate, thereby driving the link mechanism 150 to extend or contract. The driving member 170 is rotatably connected to the first link 151 to drive the first link 151 to rotate, and the driving member 170 is rotatably connected to the second link 153 to drive the second link 153 to rotate.

In this embodiment, the link mechanism 150 is a four-bar link structure, the link mechanism 150 further includes a third link 155 and a fourth link 157, two ends of the third link 155 are respectively rotatably connected to one ends of the platform 110 and the fourth link 157, and the other end of the fourth link 157 is rotatably connected to the cab body 130. Specifically, the first link 151 and the third link 155 are rotatably connected to the first pin 152 of the connection base 114, respectively. The second link 153 and the fourth link 157 are both rotatably connected to the supporting seat 135, and the second link 153 and the fourth link 157 are respectively rotatably connected to the second pin 154 of the supporting seat 135. The first link 151, the second link 153, the third link 155, and the fourth link 157 can collectively form a quadrangular structure. In the present embodiment, the first link 151, the second link 153, the third link 155, and the fourth link 157 are equal in length, so that the first link 151, the second link 153, the third link 155, and the fourth link 157 collectively form a diamond structure. The diamond structure is easily deformed, so that the link mechanism 150 can be made to be horizontally long or short. At this time, the heights of the first position and the second position are equal, that is, the four-bar linkage structure can drive the cab body 130 to move in the horizontal direction.

In this embodiment, the first link 151 and the third link 155 are rotatably connected to the same position of the connecting seat 114, and the second link 153 and the fourth link 157 are rotatably connected to the same position of the supporting seat 135, respectively, it can be understood that in other embodiments, the first link 151 and the third link 155 may also be rotatably connected to different positions of the connecting seat 114, and the second link 153 and the fourth link 157 may also be rotatably connected to different positions of the supporting seat 135, respectively, only that the link mechanism 150 can be deformed normally so as to extend and retract.

In this embodiment, the driving member 170 is disposed on the platform 110 and connected to the first link 151, and the driving member 170 is used for driving the first link 151 to rotate relative to the platform 110. Specifically, the driving member 170 includes a cylinder rotatably connected to the link mechanism 150. The cylinder body of the oil cylinder is fixed on the platform 110, and the piston rod of the oil cylinder is rotatably connected to the first connecting rod 151 so as to drive the first connecting rod 151 to rotate around the first pin 152. In other embodiments, the driving member 170 may also include an electric push rod or a cylinder mechanism, and only needs to be able to drive the cab body 130 to move. In this embodiment, the link mechanism 150 is driven by the oil cylinder, and the first link 151 can rotate around the first pin 152, so as to drive the second link 153, the third link 155, and the fourth link 157 to rotate correspondingly. The diamond structure formed by the first link 151, the second link 153, the third link 155, and the fourth link 157 is deformed, and the length of the four-link structure in the horizontal direction is extended or shortened, so that the cab body 130 can be pushed to move forward or backward with respect to the platform 110. The driving member 170 is controlled by a controller.

By providing the link mechanism 150 having a four-bar linkage structure, the cab body 130 can be pushed forward or pulled backward, thereby driving the cab body 130 to move relative to the platform 110 to better meet the work requirement. At this time, the oil cylinder serving as the driving member 170 only needs to directly drive the link mechanism 150 to deform, the requirement on the power size of the oil cylinder is low, namely, the driving requirement can be met by adopting a small oil cylinder, and the oil cylinder with a large volume does not need to be adopted, so that the optimization of the structure of the whole excavator 100 is facilitated.

In addition, referring to fig. 4 and 5, in the present embodiment, the first link 151 and the fourth link 157 may have the same length, and the second link 153 and the third link 155 may have the same length, so that the first link 151, the second link 153, the third link 155, and the fourth link 157 form a parallelogram structure together, rather than a rhombus structure. At this time, if the lengths of the first link 151 and the fourth link 157 are smaller than the lengths of the second link 153 and the third link 155, the height of the supporting seat 135 is higher than that of the connecting seat 114 so that the second pin 154 is higher than the first pin 152 in the vertical direction, thereby allowing the link mechanism 150 to be horizontally lengthened or shortened to drive the cab body 130 to move forward or backward.

In addition, since the link mechanism 150 is a four-bar link structure, and the rotation of any one of the links can drive the other three links to rotate, the driving member 170 may be disposed on the cab body 130 and connected to the second link 153, and the driving member 170 is used to drive the second link 153 to rotate relative to the cab body 130, and may also deform a quadrilateral of the four-bar link structure, thereby extending or shortening the link mechanism 150, and may be specifically disposed according to actual needs.

In this embodiment, the driving member 170 is connected to the link rods at a short distance for easy driving and power saving in order to facilitate arrangement of the components. It is understood that in other embodiments, when the driving member 170 is disposed on the platform 110, the driving member 170 may also be connected to the second link 153 to drive the second link 153 to rotate; alternatively, when the driving member 170 is disposed on the cab body 130, the driving member 170 may be connected to the first link 151 to drive the first link 151 to rotate, and only the driving member 170 and the link mechanism 150 do not interfere with each other during movement.

In other embodiments, the link mechanism 150 may be configured only by the first link 151 and the second link 153 without including the third link 155 and the fourth link 157. However, the structural strength of the link mechanism 150 is low, and the structural strength of the two links needs to be enhanced to satisfy the requirement of stably driving the cab body 130 to move.

In the present embodiment, the link mechanism 150 is composed of 4 links. In other embodiments, the link mechanism 150 may further include more links, each four links are connected to form a diamond structure, and the plurality of links may correspondingly form a plurality of diamond structures, so as to lengthen the telescopic stroke of the link mechanism 150, thereby enlarging the moving range of the cab body 130.

In other embodiments, the driving member 170 may be a linear driving member such as a cylinder, and a driving wheel may be used instead. The driving wheel rotates around the first pin 152 to be connected to the connecting seat 114, so as to directly fix the first connecting rod 151 on the driving wheel, and the first connecting rod 151 is arranged along the radius direction of the driving wheel, so that when the driving wheel rotates, the first connecting rod 151 can be driven to rotate together relative to the first pin 152, and the effect of driving the link mechanism 150 to stretch can be achieved.

It will be appreciated that any other work machine having a cab 134 can use the linkage 150 and drive member 170 described above for cab translation.

The working principle and working process of the excavator 100 are as follows:

when the oil cylinder serving as the driving member 170 extends, the first connecting rod 151 is driven to rotate around the connecting seat 114, and then the second connecting rod 153, the third connecting rod 155 and the fourth connecting rod 157 are driven to rotate respectively, so that the total length of the four-bar linkage structure in the horizontal direction is increased, that is, the link mechanism 150 extends. Thus, the linkage 150 pushes the entire cab body 130 forward relative to the platform 110 through the support base 135 to accommodate the current operating needs of the excavator 100.

When the oil cylinder as the driving member 170 is shortened, the first link 151 is driven to rotate around the connection seat 114, and then the second link 153, the third link 155 and the fourth link 157 are driven to rotate, respectively, so that the total length of the four-link structure in the horizontal direction is shortened, that is, the link mechanism 150 is shortened. Thus, the linkage 150 pushes the entire cab body 130 through the support base 135 rearward relative to the platform 110 to accommodate the current operating needs of the excavator 100.

The excavator 100 drives the cab body 130 to move relative to the platform 110, that is, drives the cab 134 to move through the link mechanism 150 and the driving member 170 for driving the link mechanism 150 to extend and retract, so that an operator of the excavator 100 can better observe the operation condition in the cab 134, which is beneficial to improving the operation efficiency. Meanwhile, since the driving member 170 directly drives the link mechanism 150 to deform to extend and retract, the driving member 170 may employ an oil cylinder with a small power, and an oil cylinder with a large volume is not required, which is beneficial to the optimization of the structure of the entire excavator 100 and can reduce the manufacturing cost to a certain extent.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides an excavator, its characterized in that includes platform, driver's cabin main part, link mechanism and driving piece, driver's cabin main part sliding connection in the platform, the driving piece connect in link mechanism is with the drive link mechanism extension or shorten, and then the drive the driver's cabin main part is relative the platform removes.

2. The excavator of claim 1 wherein the linkage mechanism comprises a first link and a second link, the first link having both ends pivotally connected to the platform and one end of the second link, respectively, and the second link having the other end pivotally connected to the cab body; the driving piece is connected to the first connecting rod or the second connecting rod in a rotating mode so as to drive the first connecting rod or the second connecting rod to rotate, and further the connecting rod mechanism is driven to extend or shorten.

3. The excavator of claim 2 wherein the drive member is disposed on the platform and connected to the first link, the drive member being configured to drive the first link to rotate relative to the platform.

4. The excavator of claim 2 wherein the drive member is disposed on the cab body and is connected to the second link, the drive member being configured to drive the second link to rotate relative to the cab body.

5. The excavator of claim 2 wherein the linkage includes a third link and a fourth link, the third link having both ends pivotally connected to the platform and one end of the fourth link, respectively, and the other end of the fourth link pivotally connected to the cab body.

6. The excavator of claim 5 wherein the first link and the fourth link are equal in length and the second link and the third link are equal in length such that the first link, the second link, the third link and the fourth link collectively form a parallelogram structure.

7. The excavator of claim 5 wherein the first, second, third and fourth links are equal in length such that the first, second, third and fourth links collectively form a diamond-shaped structure.

8. The excavator of claim 5 wherein the cab body includes a base slidably coupled to the platform and a cab disposed on the base, the base having a support seat disposed on a side of the cab proximate the platform, the second link and the fourth link both being pivotally coupled to the support seat.

9. The excavator of claim 8 wherein the platform is provided with a slide rail and the base is in sliding engagement with the slide rail.

10. The excavator of claim 1 wherein the drive member comprises a cylinder, the cylinder being pivotally connected to the linkage.