CN213805538U

CN213805538U - Dozer blade mounting structure, lower frame of excavator and excavator

Info

Publication number: CN213805538U
Application number: CN202022425798.8U
Authority: CN
Inventors: 高�浩; 王昕�; 李岳华; 陈涛; 寇煜
Original assignee: Zoomlion Heavy Industry Science and Technology Co Ltd; Shaanxi Zoomlion West Earthmoving Machinery Co Ltd
Current assignee: Zoomlion Heavy Industry Science and Technology Co Ltd; Shaanxi Zoomlion West Earthmoving Machinery Co Ltd
Priority date: 2020-10-27
Filing date: 2020-10-27
Publication date: 2021-07-27
Anticipated expiration: 2030-10-27

Abstract

The utility model relates to an engineering machine tool technical field specifically relates to a frame and excavator under dozer blade mounting structure, excavator. Wherein, this dozer blade mounting structure includes the connecting seat and sets up the dozer blade support that is used for installing the dozer blade on the connecting seat and the hydro-cylinder support that is used for installing the hydro-cylinder of drive dozer blade action, the connecting seat is including bending the connecting plate, first support piece and second support piece, one side of the connecting plate of bending is formed with the cavity, dozer blade support and hydro-cylinder support set up in the one side that the connecting plate of bending deviates from the cavity, first support piece and second support piece set up respectively in the cavity, and first support piece corresponds with the dozer blade support. This dozer blade mounting structure, frame and excavator under excavator structural strength is better, bearing capacity is strong, long service life, otic placode warp for a short time.

Description

Dozer blade mounting structure, lower frame of excavator and excavator

Technical Field

The utility model relates to an engineering machine tool technical field specifically relates to a frame and excavator under dozer blade mounting structure, excavator.

Background

The hydraulic excavator mainly comprises an upper frame, a lower frame, a working device, a slewing bearing and the like, wherein the upper frame and the lower frame are connected through the slewing bearing, a slewing motor is arranged on the upper frame, and the upper frame is driven to rotate through the rotation of the slewing motor. For a small-tonnage excavator, a dozer support and an oil cylinder support are usually arranged in front of a lower frame and are used for mounting a dozer blade and a dozer cylinder, and the dozer blade is used for leveling sundries such as ground soil when the excavator moves forward, so that the excavator can move forward stably. The upper cover plate and the lower cover plate of the lower frame are welded between the upper cover plate and the lower cover plate respectively, the dozer connecting rod is connected to the upper cover plate of the dozer support through a pin shaft, the dozer connecting rod is connected to the dozer through a welding connection, one end of the dozer oil cylinder is connected to the dozer oil cylinder, and the other end of the dozer oil cylinder is connected to the dozer. The mounting mode of the dozer blade support and the oil cylinder support has the following problems: the ear plates are easy to deform during welding, and form and position tolerances such as verticality among the ear plates are not well controlled; the coaxiality of the pin shaft holes of the left and right groups of the dozer blade ear plates is inconvenient to control, and the two groups of the dozer blade ear plates and the lower frame are required to be integrally installed with a hole machine, so that the cost is high; the ear plates are independently arranged between the upper cover plate and the lower cover plate, the structural strength is weak, and the bearing capacity is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a frame and excavator under dozer blade mounting structure, excavator, this frame and excavator under dozer blade mounting structure, the excavator structural strength better, bearing capacity is strong, long service life, otic placode warp for a short time.

In order to realize the above-mentioned purpose, the utility model provides a dozer blade mounting structure, dozer blade mounting structure include the connecting seat and set up in the dozer blade support that is used for installing the dozer blade on the connecting seat with be used for the installation drive the hydro-cylinder support of the hydro-cylinder of dozer blade action, the connecting seat is including bending connecting plate, first support piece and second support piece, one side of the connecting plate of bending is formed with the cavity, the dozer blade support with the hydro-cylinder support set up in the connecting plate of bending deviates from one side of cavity, first support piece with second support piece set up respectively in the cavity, just first support piece with the dozer blade support corresponds.

Preferably, the second supporting member corresponds to the cylinder support, and the top end and the bottom end of the first supporting member and the second supporting member are respectively connected with the top wall and the bottom wall forming the cavity.

Preferably, the dozer blade support and the first support member are respectively provided as a pair, the oil cylinder support and the second support member are respectively provided as one, and the oil cylinder support is located between the pair of dozer blade support; and/or the bending connecting plate is a U-shaped bending plate.

Preferably, the blade mount includes a pair of first lugs disposed in opposition to each other and a first reinforcing rib connected between the pair of first lugs.

Preferably, the first support member includes a first plate and a second plate, which are respectively disposed corresponding to the pair of first ear plates, one edge of the second plate facing the outside of the cavity is recessed into the second plate to form a notch, the other edges of the second plate are respectively connected to the inner wall forming the cavity, and the first plate is disposed at an end of the bending connection plate along the length direction to close the opening of the cavity in the length direction.

Preferably, the cylinder support includes a pair of second lug plates disposed opposite to each other and a second reinforcing rib connected between the pair of second lug plates.

Preferably, the second supporting member includes a pair of third plate members respectively corresponding to the pair of second ear plates, an edge of the third plate member facing the outside of the cavity is recessed into the inside of the third plate member to form a notch, and the remaining edges of the third plate member are respectively connected to the inner wall forming the cavity.

Preferably, the first reinforcing bead and the second reinforcing bead are respectively formed of bent plates.

The utility model discloses the second aspect provides a frame under excavator, the frame under excavator includes the frame main part of getting off and as above the dozer blade mounting structure, the frame main part includes upper cover plate and lower apron down, the connecting seat connect in the upper cover plate with between the apron down.

The utility model discloses the third aspect provides an excavator, the excavator include dozer blade, hydro-cylinder and as above the excavator under the frame, the dozer blade with the dozer blade support is connected, the both ends of hydro-cylinder respectively with the hydro-cylinder support with the dozer blade is connected.

According to the technical scheme, the dozer blade support and the oil cylinder support are connected into a whole through the bending connecting plate, the first support piece and the second support piece are adopted for supporting and reinforcing, and the position where the dozer blade support and the oil cylinder support are located is stressed greatly, so that the first support piece corresponds to the dozer blade support, the second support piece corresponds to the oil cylinder support, and the strength of the connecting seat can be improved better on the premise that fewer support parts are used; simultaneously, the dozer blade support and the oil cylinder support are connected to the connecting seat, and when machining is carried out, the whole weight and the size are smaller, so that the machining is more convenient, the coaxiality of the mounting holes is more conveniently controlled, and the dozer blade is convenient to mount.

Other features and advantages of the present invention will be described in detail in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of a portion of one embodiment of a lower frame of a dozer blade according to the present invention;

FIG. 2 is a schematic structural view of one embodiment of a blade mounting structure of the present invention;

FIG. 3 is another angular configuration of the blade mounting structure shown in FIG. 2;

FIG. 4 is a schematic structural view of one embodiment of a first reinforcing rib of the blade mounting structure shown in FIG. 2;

FIG. 5 is a schematic view of a second reinforcing bead of the blade mounting structure shown in FIG. 2;

fig. 6 is a schematic structural view of a bent connecting plate of the blade mounting structure shown in fig. 2.

Description of the reference numerals

1. An upper cover plate; 2. a lower cover plate; 3. bending the connecting plate; 4. a second ear panel; 5. a second reinforcing rib; 6. a first ear plate; 7. a first reinforcing rib; 8. a third plate member; 9. a first plate member; 10. a second plate.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

In the present invention, unless otherwise indicated, the directional terms used herein generally refer to the orientation as shown in the accompanying drawings.

The utility model provides a dozer blade mounting structure, dozer blade mounting structure is applicable to and installs under between the upper cover plate of frame main part and the apron down. The dozer blade mounting structure comprises a connecting seat, a dozer blade support and an oil cylinder support, wherein the dozer blade support is used for mounting a dozer blade on the connecting seat, the oil cylinder support is used for mounting and driving the oil cylinder of the dozer blade to move, the connecting seat comprises a bending connecting plate 3, a first supporting piece and a second supporting piece, a cavity is formed in one side of the bending connecting plate 3, the dozer blade support and the oil cylinder support are arranged on one side, deviating from the cavity, of the bending connecting plate 3, the first supporting piece and the second supporting piece are respectively arranged in the cavity, and the first supporting piece corresponds to the dozer blade support. .

According to the technical scheme, the dozer blade support and the oil cylinder support are connected into a whole through the bending connecting plate 3, and the first support piece and the second support piece are adopted for supporting and reinforcing, and the positions of the dozer blade support and the oil cylinder support are subjected to large stress, so that the first support piece corresponds to the dozer blade support, the second support piece corresponds to the oil cylinder support, and the strength of the connecting seat can be better improved on the premise of using fewer support parts; simultaneously, the dozer blade support and the oil cylinder support are connected to the connecting seat, and when machining is carried out, the whole weight and the size are smaller, so that the machining is more convenient, the coaxiality of the mounting holes is more conveniently controlled, and the dozer blade is convenient to mount.

As an embodiment, the second supporting member corresponds to the cylinder support, and top ends and bottom ends of the first supporting member and the second supporting member are respectively connected to a top wall and a bottom wall forming the cavity. The upper end and the lower end of the first supporting piece and the second supporting piece are respectively connected with the top wall and the bottom wall of the formed cavity, so that the strength of the connecting seat can be further enhanced, the overall structure strength is better, the bearing capacity is strong, and the service life is long.

As an embodiment, the blade support and the first support member are respectively provided in a pair, the cylinder support and the second support member are respectively provided in a single pair, and the cylinder support is located between the pair of blade supports. The pair of dozer blade supports are respectively arranged at two ends of the bending connecting plate 3. Preferably, the ram supports are located intermediate a pair of the blade supports (i.e., a pair of blade supports are symmetrical with respect to the ram supports).

In one embodiment, as shown in fig. 6, the bending connecting plate 3 is a U-shaped bending plate. The arrangement and the number of the first plate 9, the second plate 10 and the third plate 8 in the cavity of the bending connecting plate 3 can be adjusted according to actual conditions. As other embodiments, the bending web 3 may also have an arc-shaped or other cross-section. The utility model discloses the second aspect provides a frame under excavator, as shown in fig. 1, the frame includes down the frame main part and as above dozer blade mounting structure under the excavator, the frame main part includes upper cover plate 1 and lower apron 2 down, the connecting seat connect in upper cover plate 1 with between the lower apron 2. Namely, the dozer blade mounting structure is mounted between the upper cover plate 1 and the lower cover plate 2 through the connecting seat. Alternatively, the connecting base is connected with the inner surfaces of the upper cover plate 1 and the lower cover plate 2 by welding.

In one embodiment, as shown in fig. 2, the blade mount includes a pair of first lug plates 6 disposed opposite to each other and a first reinforcing rib 7 connected between the pair of first lug plates 6. And through holes for connecting a dozer blade are respectively arranged on the first ear plates 6. The pair of first lug plates 6 and the bending connecting plate 3 as well as the first reinforcing rib 7 and the pair of first lug plates 6 are connected by welding. Two first otic placodes 6 and first strengthening rib 7 connect into a little seam piece through the welding, make a pair of first otic placode 6 and first strengthening rib 7 into little seam piece, the manufacturability is good, and it is little to warp during the otic placode welding, and form and position tolerances such as straightness that hangs down between the otic placode are easily guaranteed, the dozer blade installation of being convenient for. As an embodiment, as shown in fig. 3, the first supporting member includes a first plate 9 and a second plate 10 respectively disposed corresponding to a pair of the first ear plates 6, an edge of the second plate 10 facing the outside of the cavity is recessed into the second plate 10 to form a notch, the remaining edges of the second plate 10 are respectively connected to the inner walls forming the cavity, and the first plate 9 is disposed at an end of the bent connecting plate 3 along the length direction to close the opening of the cavity in the length direction. I.e. the top and bottom edges of the second plate member 10 and the inner edge of the cavity opposite the recess are connected to the inner walls forming said cavity, respectively. The two first plates 9 are respectively arranged at two ends of the bending connecting plate 3 along the length direction, and the two ends of the bending connecting plate 3 along the length direction are plugged. The first plates 9 are welded at two ends of the bending connecting plate 3, so that the first lug plates 6 at corresponding positions can be supported, the cross section of the bending connecting plate 3 can be closed, and the structural strength is increased. The first supporting piece adopts the design mode that the first plate 9 and the second plate 10 correspond to the first ear plate 6 one by one, the purpose of more effectively improving the structural strength by adopting fewer supporting parts can be realized, and meanwhile, the design of the notch on the second plate 10 can reduce the weight on the premise of meeting the supporting strength so as to reduce the cost. Optionally, the first plate 9 and the second plate 10 are connected with the bending connection plate 3 by welding. As an embodiment, as shown in fig. 2, the cylinder bracket includes a pair of second lug plates 4 disposed opposite to each other and a second reinforcing rib 5 connected between the pair of second lug plates 4. And through holes for connecting the oil cylinders are respectively arranged on the pair of second lug plates 4. Adopt welded connection between a pair of second otic placode 4 and the connecting plate 3 of bending, between second strengthening rib 5 and a pair of second otic placode 4, pass through welded connection with two second otic placodes 4 and second strengthening rib and become a little seam piece, the manufacturability is good, and the otic placode warp when welding for a short time, and form and position tolerances such as straightness that hangs down between the otic placode are easily guaranteed, the hydro-cylinder installation of being convenient for. As an embodiment, as shown in fig. 3, the second supporting member includes a pair of third plate members 8 respectively corresponding to the pair of second ear plates 4, an edge of the third plate member 8 facing the outside of the cavity is recessed into the inside of the third plate member 8 to form a recess, and the remaining edges of the third plate member 8 are respectively connected to the inner walls forming the cavity. I.e. the top and bottom edges of the third plate member 8 and the inner edge located in the cavity opposite the recess are connected to the inner walls forming said cavity, respectively. The second support piece adopts the design of

third plate

8 and 4 one-to-one of second otic placodes, can realize adopting less support component to reach more effectual improvement structural strength's purpose, and the design of notch can reduce weight, reduce cost under the prerequisite that satisfies support intensity on the third plate 8 simultaneously. Optionally, a welded connection is used between the third plate 8 and the bent connecting plate 3.

In one embodiment, as shown in fig. 4 to 5, the first reinforcing beads 7 and the second reinforcing beads 5 are each formed of a bent plate. The bending plate can be designed in an integrated mode, and two plates can be welded in a splicing mode. Alternatively, the second reinforcing bead 5 may be bent to a higher degree than the first reinforcing bead 7.

The small welding parts formed by welding two groups of first lug plates 6 and first reinforcing ribs 7 and the small welding parts formed by welding one group of second lug plates 4 and second reinforcing ribs 5 are respectively welded on the bending connecting plate 3, and meanwhile, a first plate 9, a second plate 10 and a third plate 8 are added in the U-shaped section of the bending connecting plate 3; when the two groups of first lug plate 6 mounting holes are integrally machined, the whole weight and size are small, and the machining is convenient; the deformation of the lug plate is small, the form and position tolerance and the mounting hole precision of the lug plate are easily guaranteed, and the installation of the dozer blade is facilitated.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be within the scope of the present invention to perform various simple modifications to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations.

In addition, various embodiments of the present invention can be combined arbitrarily, and the disclosed content should be regarded as the present invention as long as it does not violate the idea of the present invention.

Claims

1. The utility model provides a dozer blade mounting structure, its characterized in that, dozer blade mounting structure include the connecting seat and set up in the connecting seat is used for installing the dozer blade's dozer blade support and is used for installing the drive the hydro-cylinder support of the hydro-cylinder of dozer blade action, the connecting seat is including bending connecting plate (3), first support piece and second support piece, one side of bending connecting plate (3) is formed with the cavity, the dozer blade support with the hydro-cylinder support set up in bend connecting plate (3) deviate from one side of cavity, first support piece with second support piece set up respectively in the cavity, just first support piece with the dozer blade support corresponds, second support piece with the hydro-cylinder support corresponds.

2. The blade mounting structure of claim 1 wherein the top and bottom ends of the first and second supports are connected to top and bottom walls, respectively, that form the cavity.

3. The blade mounting structure according to claim 1 or 2, wherein: the blade support and the first support member are respectively provided as a pair, the oil cylinder support and the second support member are respectively provided as one, and the oil cylinder support is positioned between the pair of blade support; and/or the presence of a gas in the gas,

the bending connecting plate (3) is a U-shaped bending plate.

4. A blade mounting structure according to claim 1 or 2, wherein the blade mount comprises a pair of first lugs (6) arranged opposite each other and a first reinforcing rib (7) connected between the pair of first lugs (6).

5. The blade mounting structure according to claim 4, wherein the first support member includes a first plate member (9) and a second plate member (10) which are respectively provided corresponding to the pair of first lug plates (6), one edge of the second plate member (10) facing the outside of the cavity is recessed into the inside of the second plate member (10) to form a notch, the other edge of the second plate member (10) is respectively connected to the inner wall forming the cavity, and the first plate member (9) is provided at an end portion of the bent connecting plate (3) in the length direction to close the opening of the cavity in the length direction.

6. The blade mounting structure of claim 4, wherein the cylinder mount includes a pair of second lug plates (4) disposed opposite to each other and a second reinforcing rib (5) connected between the pair of second lug plates (4).

7. The blade mounting structure according to claim 6, wherein the second support member includes a pair of third plate members (8) respectively provided corresponding to the pair of second lug plates (4), one edge of the third plate member (8) facing the outside of the cavity is recessed inward of the third plate member (8) to form a notch, and the remaining edges of the third plate member (8) are respectively connected to the inner walls forming the cavity.

8. The blade mounting structure according to claim 6, wherein the first reinforcing bead (7) and the second reinforcing bead (5) are each formed of a bent plate.

9. An excavator lower frame, characterized in that the excavator lower frame comprises a lower frame body and the blade mounting structure of any one of claims 1-8, the lower frame body comprises an upper cover plate (1) and a lower cover plate (2), and the connecting base is connected between the upper cover plate (1) and the lower cover plate (2).

10. An excavator, comprising a blade, an oil cylinder and the excavator lower frame of claim 9, wherein the blade is connected to the blade support, and both ends of the oil cylinder are connected to the oil cylinder support and the blade, respectively.