High-strength excavator lower frame

Abstract

The utility model provides a high-strength lower frame of an excavator, which comprises a frame main body, two sides of the frame main body are respectively provided with a mud guard assembly, the mud guard assembly comprises a front wheel mud guard and a rear wheel mud guard, the front wheel mud guard and the rear wheel mud guard are arranged on the frame main body, a pedal frame is connected between the front wheel mud guard and the rear wheel mud guard, and the front wheel mud guard and the rear wheel mud guard are arranged on the frame main body. A front connecting frame and a rear connecting frame are arranged on the sides, facing the frame body, of the two ends of the pedal frame respectively, the cross section of the front connecting frame and the cross section of the rear connecting frame are of a U-shaped structure, and connecting pieces are arranged at the positions, corresponding to the front connecting frame and the rear connecting frame, of the frame body. By means of the structure, the lower frame of the excavator is divided into the frame body and the mud blocking assembly, the occupied space of the lower frame of the excavator can be reduced, the lower frame of the excavator can be conveniently disassembled and independently replaced when being partially damaged, and the maintenance cost is reduced; and the front connecting frame and the rear connecting frame are matched with the connecting pieces correspondingly, so that the supporting capacity of the pedal frame can be improved, and the supporting strength is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to excavator frame technical field especially relates to a high strength's excavator lower frame. BACKGROUND

[0002] The excavator is also called excavating machine, uses the shovel to excavate the material higher or lower than the machine surface and is loaded into the transport vehicle or unloads to the earthwork machine of material yard.

[0003] The excavator lower frame is used for connecting the upper frame of the excavator and the support part of movement, and is the platform foundation of the whole vehicle for movement.

[0004] At present, the lower frame of most excavators is generally made in one piece or welded. UTILITY MODEL CONTENT

[0005] The utility model discloses a high strength's excavator lower frame mainly solves the problem that the traditional excavator lower frame is made in one piece or welded, and the manufacturing and maintenance cost is high, easy to damage and inconvenient to maintain.

[0006] To achieve the purpose, the technical scheme of the utility model is as follows:

[0007] The utility model provides a high strength's excavator lower frame, including the frame main part, the both sides of frame main part are provided with mudguard assembly, the mudguard assembly includes front wheel mudguard and rear wheel mudguard, the front wheel mudguard is installed on the frame main part with rear wheel mudguard, the front wheel mudguard is connected with rear wheel mudguard and has the pedal frame between, the both ends of pedal frame are respectively equipped with front connecting frame and rear connecting frame to the side of frame main part, the cross section of front connecting frame and rear connecting frame is U type structure, the position of frame main part corresponding front connecting frame and rear connecting frame all is provided with connecting piece.

[0008] The connecting piece includes lower connecting frame and upper support, and the lower connecting frame and the upper support are arranged at intervals to form a mounting groove, the mounting groove is matched with the front connecting frame and the rear connecting frame, and the positions corresponding to the lower connecting frame of the front connecting frame and the rear connecting frame are all penetrated with mounting holes for adapting bolts.

[0009] In an embodiment, the cross section of the lower connecting frame is in U type structure.

[0010] In one embodiment, the upper support frame comprises a horizontal support plate and an inclined support plate, one end of the horizontal support plate is connected to an end of the inclined support plate to form an L-shaped structure.

[0011] In one embodiment, the pedal frame is provided with a horizontal pedal, the vehicle frame body is provided with a support member corresponding to the position of the horizontal pedal, the support member comprises a lower support frame and an upper support frame, the lower support frame and the upper support frame are spaced apart to form a support groove, the support groove is matched with the horizontal pedal, and the lower support frame, the upper support frame and the horizontal pedal are all provided with mounting holes for adapting bolts at corresponding positions.

[0012] In one embodiment, the lower support frame and the upper support frame are in L-shaped structure in cross section, and the lower support frame and the upper support frame are symmetrically arranged.

[0013] In one embodiment, a support connecting member is arranged between the front wheel mudguard and the vehicle frame body, the support connecting member comprises a bent frame, one end of the bent frame is provided with a wrapping frame towards the front wheel mudguard, the bent frame and the wrapping frame are integrally formed, the wrapping frame wraps one side surface of the front wheel mudguard, the front wheel mudguard is installed on the wrapping frame through bolts, and the bent frame is installed on the vehicle frame body through bolts.

[0014] In one embodiment, a mud pushing frame is arranged on the vehicle frame body, a mud pushing rotating seat is arranged on the vehicle frame body, the mud pushing frame comprises a mud pushing plate, the two side edges of the mud pushing plate are respectively provided with baffle plates, one side of the mud pushing plate towards the vehicle frame body is provided with a connecting seat, the two ends of the connecting seat are respectively rotatably connected with an upper connecting arm and a lower connecting arm, and the other ends of the upper connecting arm and the lower connecting arm are rotatably connected to the mud pushing rotating seat.

[0015] The advantages or beneficial effects of the above technical solutions at least include: the lower vehicle frame of the excavator is divided into a vehicle frame body and a mud protection assembly, the mud protection assembly is divided into a front wheel mudguard, a rear wheel mudguard and a pedal frame, the occupied space during production of the lower vehicle frame of the excavator can be reduced, when local damage occurs, the mud protection assembly can be easily disassembled and replaced separately, and the maintenance cost is reduced; the installation groove formed between the lower connecting frame and the upper support frame is capable of quickly positioning the front connecting frame and the rear connecting frame before installation, so that the installation of the pedal frame is facilitated, the support capacity of the pedal frame is improved, and the support strength is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings illustrate exemplary embodiments of the present application and, together with the general description of the application given above, and the detailed description of the embodiments given below, serve to explain the principles of the present application. These drawings are included herewith and constitute a part of this specification. In the drawings:

[0017] Figure 1 A schematic view of a lower vehicle frame of an excavator is shown according to an exemplary embodiment of the present application;

[0018] Figure 2 A schematic view of a vehicle frame body is shown according to an exemplary embodiment of the present application;

[0019] Figure 3 An enlarged schematic view of the middle A is shown according to an exemplary embodiment of the present application; Figure 2

[0020] Figure 4 A schematic view of a mud blocking assembly is shown according to an exemplary embodiment of the present application;

[0021] Figure 5 A schematic view of a support connecting piece is shown according to an exemplary embodiment of the present application;

[0022] Figure 6 A schematic view of a mud pushing frame is shown according to an exemplary embodiment of the present application.

[0023] BRIEF DESCRIPTION OF DRAWINGS

[0024] 1, vehicle frame body;

[0025] 11, mud pushing rotating seat;

[0026] 2, mud blocking assembly;

[0027] 21, front wheel mudguard; 22, rear wheel mudguard; 23, pedal frame; 231, front connecting frame; 232, rear connecting frame; 233, horizontal pedal;

[0028] 3, connecting piece;

[0029] 31, lower connecting frame; 32, upper support; 321, horizontal support plate; 322, inclined support plate; 33, mounting groove;

[0030] 4, support piece;

[0031] 41, lower support frame; 42, upper support frame; 43, support groove;

[0032] 5, support connecting piece;

[0033] 51, bending frame; 52, wrapping frame;

[0034] 6, mud pushing frame;

[0035] 61, mud pushing plate; 611, baffle; 62, connecting seat; 63, upper connecting arm; 64, lower connecting arm. DETAILED DESCRIPTION

[0036] ​Embodiments of the present application will be described in more detail below with reference to the drawings. Although some embodiments of the present application are shown in the drawings, it is understood that the present application can be implemented in various forms and should not be interpreted as being limited to the embodiments set forth herein, but rather these embodiments are provided so as to more completely and thoroughly understand the present application. It is understood that the drawings and embodiments of the present application are for illustrative purposes only and are not intended to limit the scope of protection of the present application.

[0037] It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0038] The term "comprising" and variations thereof as used herein are open-ended, that is "including but not limited to". The term "based on" is "based, at least in part, on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Related definitions will be given in the description below. It should be noted that the concepts of "first", "second", etc. mentioned in the present application are only used to distinguish different devices, modules or units, and are not intended to limit the order or interdependence of the functions performed by these devices, modules or units.

[0039] It should be noted that the modification of "one" or "multiple" mentioned in the present application is illustrative and not restrictive, and those skilled in the art should understand that unless otherwise explicitly stated in the context, it should be understood as "one or more".

[0040] The names of the messages or information exchanged between the plurality of devices in the embodiments of the present application are only for illustrative purposes, and are not intended to limit the scope of these messages or information.

[0041] Referring to Figures 1 to 4 The embodiments of the present application provide a high-strength excavator lower frame, which comprises a frame body 1, and a mud guard assembly 2 is arranged on each side of the frame body 1. The mud guard assembly 2 comprises a front wheel mud guard 21 and a rear wheel mud guard 22, the front wheel mud guard 21 and the rear wheel mud guard 22 are installed on the frame body 1, a pedal frame 23 is connected between the front wheel mud guard 21 and the rear wheel mud guard 22, a front connecting frame 231 and a rear connecting frame 232 are arranged on the side of the frame body 1 at both ends of the pedal frame 23, the cross section of the front connecting frame 231 and the rear connecting frame 232 is in U-shaped structure, and a connecting piece 3 is arranged at the positions corresponding to the front connecting frame 231 and the rear connecting frame 232 of the frame body 1.

[0042] The connecting piece 3 comprises a lower connecting frame 31 and an upper support 32, the lower connecting frame 31 is spaced apart from the upper support 32 to form a mounting groove 33, the mounting groove 33 is matched with the front connecting frame 231 and the rear connecting frame 232, and the front connecting frame 231 and the rear connecting frame 232 are penetrated by mounting holes for adapting bolts at positions corresponding to the lower connecting frame 31.

[0043] By adopting the above structure, the lower frame of the excavator is divided into the frame body 1 and the mud guard assembly 2, and the mud guard assembly 2 is divided into the front wheel mud guard 21, the rear wheel mud guard 22 and the pedal frame 23, so that the occupied space of the excavator lower frame production can be reduced, and when local damage occurs, the pedal frame 23 can be easily disassembled and replaced separately to reduce maintenance costs; the front connecting frame 231 and the rear connecting frame 232 of the pedal frame 23 are matched with the connecting piece 3 of the frame body 1 respectively, so that the mounting groove 33 formed between the lower connecting frame 31 and the upper support 32 can quickly position the front connecting frame 231 and the rear connecting frame 232 before installation, thereby facilitating the installation of the pedal frame 23 and improving the support capacity and support strength of the pedal frame 23.

[0044] In an embodiment, referring to Figure 2 and Figure 3 , the cross section of the lower connecting frame 31 is in a U-shaped structure.

[0045] The upper support 32 comprises a horizontal support plate 321 and an inclined support plate 322, one end of the horizontal support plate 321 is connected to the end of the inclined support plate 322 to form an L-shaped structure. In actual use, the opening of the U-shaped structure of the lower connecting frame 31 faces downward, and cooperates with the L-shaped structure of the horizontal support plate 321 and the inclined support plate 322 of the upper support 32 to form the mounting groove 33, so that the front connecting frame 231 and the rear connecting frame 232 can be limited in the mounting groove 33 to facilitate the installation of the front connecting frame 231 and the rear connecting frame 232.

[0046] In an embodiment, referring to Figure 2 , Figure 3 and Figure 4 , the pedal frame 23 is provided with a horizontal pedal 233, and the frame body 1 is provided with a support 4 at a position corresponding to the horizontal pedal 233, the support 4 comprises a lower support frame 41 and an upper support frame 42, the lower support frame 41 and the upper support frame 42 are spaced apart to form a support groove 43, the support groove 43 is matched with the horizontal pedal 233, and the lower support frame 41, the upper support frame 42 and the horizontal pedal 233 are penetrated by mounting holes for adapting bolts at positions corresponding to each other. In actual use, the support groove 43 formed between the lower support frame 41 and the upper support frame 42 can adapt to the horizontal pedal 233, so as to support the horizontal pedal 233 to facilitate the installation of the horizontal pedal 233.

[0047] The cross sections of the lower support frame 41 and the upper support frame 42 are L-shaped structures, and the lower support frame 41 and the upper support frame 42 are symmetrically arranged. In actual application, the cross sections of the lower support frame 41 and the upper support frame 42 are symmetrically arranged in the L-shaped structures, so that the support strength of the horizontal pedal 233 can be increased, and the support capacity of the horizontal pedal 233 can be improved.

[0048] In an embodiment, referring to Figure 1 、 Figure 4 and Figure 5 , the support connecting piece 5 is arranged between the front wheel mudguard 21 and the frame body 1, the support connecting piece 5 comprises a bent frame 51, one end of the bent frame 51 towards the front wheel mudguard 21 is provided with a wrapping frame 52, the bent frame 51 and the wrapping frame 52 are integrally formed, the wrapping frame 52 wraps one side surface of the front wheel mudguard 21, the front wheel mudguard 21 is bolted on the wrapping frame 52, and the bent frame 51 is bolted on the frame body 1. In actual application, the wrapping frame 52 of the support connecting piece 5 is used for wrapping one side surface of the front wheel mudguard 21, so that the contact surface of the connection between the front wheel mudguard 21 and the support connecting piece 5 is increased, and the bent frame 51 is connected to the frame body 1, so that the installation strength of the front wheel mudguard 21 installed on the frame body 1 can be ensured.

[0049] In an embodiment, referring to Figure 1 and Figure 6 , the mud pushing frame 6 is arranged on the frame body 1, the mud pushing rotating seat 11 is arranged on the frame body 1, the mud pushing frame 6 comprises a mud pushing plate 61, the two side edges of the mud pushing plate 61 are respectively provided with a baffle 611, one side of the mud pushing plate 61 towards the frame body 1 is provided with a connecting seat 62, the two ends of the connecting seat 62 are respectively rotatably connected with an upper connecting arm 63 and a lower connecting arm 64, and the other ends of the upper connecting arm 63 and the lower connecting arm 64 are rotatably connected to the mud pushing rotating seat 11. In actual application, the mud pushing plate 61 of the mud pushing frame 6 is swingably connected to the mud pushing rotating seat 11 of the frame body 1 through the arrangement of the upper connecting arm 63 and the lower connecting arm 64, and the swing of the mud pushing plate 61 can be driven by a hydraulic cylinder, so that the mud pushing plate 61 can play a role of pushing obstacles.

[0050] In the description of the present application, it should be explained that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and 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 therefore cannot be understood as a limitation of the present application.

[0051] Those skilled in the art should understand that the above embodiments are only for clearly illustrating the present application, and are not intended to limit the scope of the present application. For those skilled in the art, other changes or modifications can be made on the basis of the above application, and these changes or modifications are still within the scope of the present application.

Claims

1. A high-strength excavator underframe, characterized in that, The utility model relates to a vehicle frame, including frame body, both sides of frame body are provided with mud -guard assembly respectively, mud -guard assembly includes front wheel mudguard and rear wheel mudguard, front wheel mudguard and rear wheel mudguard are installed on frame body, and the connection of front wheel mudguard and rear wheel mudguard is equipped with pedal frame, and both ends of pedal frame are respectively equipped with front connecting frame and rear connecting frame to the side of frame body, the cross section of front connecting frame and rear connecting frame is U type structure, and the position of frame body corresponds front connecting frame and rear connecting frame all is provided with connecting piece, Connecting piece includes lower connecting frame and upper support, and lower connecting frame and upper support are spaced apart and form mounting groove, and mounting groove is matched with front connecting frame and rear connecting frame, and the position of front connecting frame and rear connecting frame corresponds lower connecting frame all is penetrated and is equipped with the mounting hole for adapting bolt.

2. The high-strength undercarriage of a backhoe as set forth in claim 1, wherein, The cross section of lower connecting frame is U type structure.

3. The high-strength undercarriage of a backhoe as defined in claim 1, wherein, The upper support includes horizontal support plate and inclined plane support plate, and one end of horizontal support plate is connected with the end of inclined plane support plate and forms L type structure.

4. The high-strength undercarriage of a backhoe as set forth in claim 1, wherein, The pedal frame is provided with horizontal pedal, and the position of frame body corresponds horizontal pedal and is provided with support piece, and the support piece includes lower support frame and upper support frame, and lower support frame and upper support frame are spaced apart and form support groove, and support groove is matched with horizontal pedal, and the position of lower support frame, upper support frame and horizontal pedal corresponds all is penetrated and is equipped with the mounting hole for adapting bolt.

5. The high-strength undercarriage of a backhoe as set forth in claim 4, wherein, The cross section of lower support frame and upper support frame is L type structure, and lower support frame and upper support frame are symmetrically arranged.

6. The high-strength undercarriage of a backhoe as defined in claim 1, wherein, Front wheel mudguard and frame body are provided with support connecting piece, and the support connecting piece includes bending frame, and one end of bending frame towards front wheel mudguard is provided with wrapping frame, and bending frame and wrapping frame are integrally made, and wrapping frame wraps one side of front wheel mudguard, and front wheel mudguard is installed on wrapping frame through bolt, and bending frame is installed on frame body through bolt.

7. The high-strength undercarriage of a backhoe as defined in claim 1, wherein, Frame body is provided with mud pushing frame, and frame body is provided with mud pushing rotating seat, and the mud pushing frame includes mud pushing plate, and both sides of mud pushing plate are respectively provided with baffle, and the side of mud pushing plate towards frame body is provided with connecting seat, and both ends of connecting seat are respectively rotatably connected with upper connecting arm and lower connecting arm, and the other end of upper connecting arm and lower connecting arm is rotatably connected on mud pushing rotating seat.

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