CN211312643U

CN211312643U - Bulldozer

Info

Publication number: CN211312643U
Application number: CN201921637335.9U
Authority: CN
Inventors: 郁飞鹏
Original assignee: Weichai Power Co Ltd
Current assignee: Weichai Power Co Ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-08-21
Anticipated expiration: 2029-09-27

Abstract

The utility model belongs to the technical field of the bull-dozer, concretely relates to bull-dozer. The bulldozer includes: a cab floor; a seat disposed on the cab floor; the operation table is arranged on the floor of the cab and is positioned on one side of the seat; the steering control device comprises a rotating mechanism and a connecting rod mechanism connected with the rotating mechanism, the rotating mechanism penetrates through the operating platform, and the connecting rod mechanism is arranged in the operating platform and below the floor of the cab. According to the bulldozer of the utility model, the rotating mechanism is arranged on the operating platform in a penetrating way, and the connecting rod mechanism is arranged inside the operating platform and below the bottom plate of the cab, so that the occupied space of the instrument desk is reduced, the arrangement of other instruments is convenient, and the weight of the instrument desk is reduced; in addition, the rotating mechanism is arranged on one side of the seat, so that the operation is convenient, and the ergonomics is met.

Description

Bulldozer

Technical Field

The utility model belongs to the technical field of the bull-dozer, concretely relates to bull-dozer.

Background

The steering control device of the existing bulldozer, particularly the mechanical transmission crawler bulldozer, is mostly arranged at an instrument desk, two operating handles and a rod system of the steering control device are usually arranged on the instrument desk, occupy most of the space of the instrument desk, are inconvenient for arrangement of other display instruments, and influence the attractiveness; meanwhile, the installation of the steering handle and the rod system thereof has certain requirements on the structural strength of the instrument desk, so that the instrument desk is heavy in design; in addition, the driver's effort to operate the steering handle on the instrument desk is not ergonomic.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the steering control device of the bulldozer occupies too much space of the instrument desk. The purpose is realized by the following technical scheme:

the utility model provides a bulldozer, include: a cab floor; a seat disposed on the cab floor; the operation table is arranged on the floor of the cab and is positioned on one side of the seat; the steering control device comprises a rotating mechanism and a connecting rod mechanism connected with the rotating mechanism, the rotating mechanism penetrates through the operating platform, and the connecting rod mechanism is arranged in the operating platform and below the floor of the cab.

According to the utility model discloses bull-dozer through wearing to locate slewing mechanism in the operation panel, sets up link mechanism in the inside of operation panel and the below of driver's cabin bottom plate to reduce the occupation space of instrument desk, the arrangement of other instruments of being convenient for alleviates the weight of instrument desk simultaneously, and in addition, slewing mechanism sets up the operation of being convenient for in one side of seat, accords with ergonomics.

In addition, according to the utility model discloses bull-dozer, can also have following technical characterstic:

in some embodiments of the present invention, the rotation mechanism includes: the single handle is arranged on the operating platform in a penetrating way; the rotating shaft is arranged inside the operating platform, and one end of the rotating shaft is connected with the single handle; the bidirectional rocker arm is arranged inside the operating platform, and the other end of the rotating shaft is connected to the middle of the bidirectional rocker arm.

In some embodiments of the present invention, the link mechanism is two sets, the two sets of link mechanisms are connected on two sides of the rotating mechanism, each set of the link mechanism includes: the connecting piece is arranged inside the operating platform and is in sliding connection with one of the two ends of the bidirectional rocker arm; the first rod body is arranged inside the operating platform and fixedly connected with the connecting piece; the second rod body is arranged below the cab floor, and the second rod body is rotatably connected with the first rod body.

In some embodiments of the present invention, an elongated slot is provided on the connecting member, and the one end of the bidirectional rocker arm can move up and down along the elongated slot.

In some embodiments of the invention, the first rod is a retractable rod.

The utility model discloses an in some embodiments, turn to the device and still include and turn to clutch, turn to clutch and set up the below on driver's cabin floor, it is two, two to turn to clutch and two sets of to turn to clutch and link mechanism is corresponding, link mechanism can drive rather than corresponding turn to clutch and separate.

In some embodiments of the present invention, the steering control device further includes a power-assisted mechanism, the power-assisted mechanism is disposed below the cab floor, the power-assisted mechanism is two, and the power-assisted mechanism is disposed between the link mechanism and the steering clutch mechanism.

In some embodiments of the present invention, the power assisting mechanism is a hydraulic power cylinder.

In some embodiments of the present invention, the steering control device further includes two separation levers, and the separation levers are used for connecting the power-assisted mechanism and the steering clutch mechanism.

In some embodiments of the present invention, the steering device further includes a fixing member, the rotating mechanism is disposed through the fixing member, and the fixing member is connected to a side surface of the operating platform.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like parts are designated by like reference numerals throughout the drawings. In the drawings:

FIG. 1 is a schematic view of the overall structure of a bulldozer according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view showing the entire structure of the bulldozer shown in FIG. 1;

FIG. 3 is a schematic view of the steering control device shown in FIG. 2;

FIG. 4 is an enlarged view of a portion of FIG. 3;

FIG. 5 is an exploded view of the rotating mechanism shown in FIG. 3;

FIG. 6 is an exploded view of the linkage mechanism shown in FIG. 3;

fig. 7 is an exploded view of the first rod shown in fig. 3.

The reference symbols in the drawings denote the following:

10: a frame;

20: a seat;

30: an operation table;

40: steering device, 41: rotating mechanism, 411: single handle, 412: rotating shaft, 413: bidirectional rocker arm, 414: connection key, 415: bearing, 416: bolt, 417: pin shaft, 418: spacing piece, 419: cotter, 42: link mechanism, 421: connector, 4211: long groove, 422: first rod, 4221: weld nut, 4222: locknut, 4223: joint bearing, 423: second rod, 4231: rocker arm, 424: link assembly, 4241: rocker arm, 4242: first link, 4243: rocker, 4244: second link, 43: steering clutch mechanism, 44: assist mechanism, 45: release lever, 46: fixing member, 47: cab floor, 48: rear axle, 49: first fixing structure, 491: first mount, 492: bearing, 493: connection key, 494: second mount, 410: second fixing structure, 4101: and (7) a pin shaft.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

As shown in fig. 1 to 3, an embodiment of the present invention provides a bulldozer, including: a cab floor 47, a seat 20, an operation panel 30, and a steering operation device 40, the seat 20 being provided on the cab floor 47; the console 30 is provided on the cab floor 47, the console 30 being located on one side of the seat 20; the steering device 40 includes a rotating mechanism 41 and a link mechanism 42 connected to the rotating mechanism 41, the rotating mechanism 41 is disposed through the console 30, and the link mechanism 42 is disposed inside the console 30 and below a cab floor 47.

According to the utility model discloses bull-dozer through wearing to locate slewing mechanism 41 in operation panel 30, sets up link mechanism 42 in the inside of operation panel 30 and the below of driver's cabin bottom plate 47 to reduce the occupation space of instrument desk, the arrangement of other instruments of being convenient for alleviates the weight of instrument desk simultaneously, and in addition, slewing mechanism 41 sets up the operation of being convenient for in one side of seat 20, accords with ergonomics.

In some embodiments of the present invention, the bulldozer further comprises a frame 10 and a rear axle 48, wherein the cab floor 47 is disposed on the frame 10, and the rear axle 48 is fixedly connected to the frame 10 and located below the cab floor 47.

In some embodiments of the present invention, the rotating mechanism 41 includes: the single handle 411, the rotating shaft 412 and the bidirectional rocker arm 413, wherein the single handle 411 is arranged on the operating platform 30 in a penetrating way; the rotating shaft 412 and the bidirectional rocker 413 are both arranged inside the operating platform 30, and both ends of the rotating shaft 412 are respectively connected with the middle parts of the single handle 411 and the bidirectional rocker 413. The rotating shaft 412 is rotated by rotating the single handle 411, and the rotating shaft 412 drives the bidirectional rocker 413 to rotate, so that two ends of the bidirectional rocker 413 are in a shape of being high at one side and low at the other side.

Further, as shown in fig. 5, the rotating mechanism 41 further includes: the connecting key 414, the bearing 415, the bolt 416, the pin shaft 417, the limiting sheet 418 and the cotter 419, the rotating shaft 412 is arranged through the fixing member 46 and the bidirectional rocker arm 413, and the bearing 415 is arranged between the rotating shaft 412 and the fixing member 46. The bidirectional rocker arm 413 is connected with the rotating shaft 412 through a connecting key 414, the bidirectional rocker arm 413 is fixedly clamped on the rotating shaft 412 through a bolt 416, and two ends of the bidirectional rocker arm 413 are connected with the connecting piece 421 through a pin shaft 417, a limiting sheet 418 and a split pin 419 in a sliding mode.

In some embodiments of the present invention, the linkage mechanisms 42 are two sets, two sets of linkage mechanisms 42 are connected on two sides of the rotating mechanism 41, and each set of linkage mechanisms 42 includes: a connector 421, a first rod 422 and a second rod 423. The connecting piece 421 and the first rod 422 are both arranged inside the operating platform 30, and the two connecting pieces 421 are respectively connected with two ends of the bidirectional rocker arm 413 in a sliding manner; the first rod 422 is fixedly connected with the corresponding connecting piece 421; when the bidirectional rocker arm 413 rotates, the high end of the bidirectional rocker arm 413 drives the corresponding connecting piece 421 to move upwards, so that the corresponding first rod 422 moves upwards, and the low end of the bidirectional rocker arm 413 slides in the corresponding connecting piece 421, so that the corresponding first rod 422 is kept at the original position. The second rod 423 is disposed below the cab bottom plate 47, the second rod 423 is rotatably connected to the first rod 422, and when the first rod 422 moves upward, the first rod 422 drives the second rod 423 to rotate.

Specifically, as shown in fig. 6, the first rod 422 is connected to the second rod 423 through a rocker arm 4231, one end of the second rod 423 is fixed to the first fixing frame 491 through a bearing 492, and when the first rod 422 moves up and down, the rocker arm 4231 drives the second rod 423 to rotate in the first fixing frame 491, so that the up and down movement of the first rod 422 is converted into the rotation of the second rod 423.

In some embodiments of the present invention, as shown in fig. 4, an elongated slot 4211 is provided on the connecting member 421, two ends of the bidirectional rocker arm 413 move up and down along the elongated slot 4211 corresponding thereto through the pin 417, the limiting piece 418 and the split pin 419, when the handle 411 is operated by one hand, one end of the bidirectional rocker arm 413 drives one connecting member 421 and the first rod 422 corresponding thereto to move up, and the other end of the bidirectional rocker arm 413 moves down along the elongated slot 4211 without moving down the first rod 422 corresponding thereto.

In some embodiments of the present invention, as shown in fig. 7, the first rod 422 is a telescopic rod, one end of the first rod 422 is connected to the connecting member 421, the other end of the first rod 422 is locked to the joint bearing 4223 by the locking nut 4222, a welding nut 4221 is disposed between two ends of the first rod 422, the first rod 422 is screwed into or out of the joint bearing 4223 and the connecting member 421 by adjusting the welding nut 4221, so as to adjust the length of the first rod 422, and the sensitivity of the rotation mechanism 41 can be adjusted by adjusting the length of the first rod 422.

In some embodiments of the present invention, the steering control device 40 further includes a steering clutch mechanism 43, the steering clutch mechanism 43 is disposed inside the rear axle 48, the steering clutch mechanism 43 is two, the two steering clutch mechanisms 43 are respectively connected with the two link mechanisms 42, and the steering clutch mechanism 43 is separated by the link mechanisms 42, so that the left and right wheels generate differential speed, and the steering is realized.

In some embodiments of the present invention, steering device 40 further includes a power assisting mechanism 44, power assisting mechanism 44 is disposed on the upper portion of rear axle 48, power assisting mechanism 44 is two, power assisting mechanism 44 is disposed between link mechanism 42 and steering clutch mechanism 43, a connecting rod assembly 424 is further disposed between power assisting mechanism 44 and link mechanism 42, connecting rod assembly 424 converts the rotation of second rod 423 into linear motion, drive power assisting mechanism 44 linear motion, power assisting mechanism 44 is used for amplifying the acting force of link mechanism 42, and the acting force can be driven to steer clutch mechanism 43 through separating lever 45. The assist mechanism 44 is a hydraulic cylinder.

Specifically, as shown in fig. 6, the link assembly 424 includes a rocker arm 4241, a first link 4242, a rocker 4243 and a second link 4244, the other end of the second link 423 is connected to the rocker arm 4241, the other end of the second link 423 is rotatably connected to the second fixing frame 494 through a bearing 492, the rocker arm 4241 is rotatably connected to one end of the first link 4242 through a pin, the other end of the first link 4242 is rotatably connected to one end of the rocker 4243, the other end of the rocker 4243 is connected to one end of the second link 4244, and the other end of the second link 4244 is rotatably connected to the assist mechanism 44. Wherein the middle portion of the rocking bar 4243 is rotatably connected with the second fixing structure 410 by a pin 4101. When the second rod 423 rotates, the rocker 4241 is driven to rotate, and the rocker 4241 drives the second connecting rod 4244 to move through the first connecting rod 4242 and the rocker 4243, so that the boosting mechanism 44 moves linearly.

In some embodiments of the present invention, the number of the separation levers 45 is two, the separation lever 45 is used for connecting the power assisting mechanism 44 and the steering clutch mechanism 43, and the separation lever 45 converts the linear motion of the power assisting mechanism 44 into the rotation of the separation lever 45, so that the steering clutch mechanism 43 acts.

In some embodiments of the present invention, the steering control device 40 further includes a fixing member 46, the rotating shaft 412 is disposed through the fixing member 46, and the fixing member 46 fixes the rotating mechanism 41 on the side of the inside of the operating platform 30, so as to ensure the stability of the rotating mechanism 41 during operation.

In some embodiments of the present invention, the steering device 40 further includes a first fixing structure 49 and a second fixing structure 410, the first fixing structure 49 is fixed on the cab floor 47, the first fixing structure 49 is disposed at two ends of the second rod 423, a bearing 492 is disposed in the first fixing structure 49 to enable the second rod 423 to rotate, the second fixing structure 410 is fixed on the rear axle 48, and the second fixing structure is used for fixing the power assisting mechanism 44.

The steering device 40 operates on the following principle: the single handle 411 is rotated to make the rotating shaft 412 drive the bidirectional rocker 413 to rotate, at this time, one end of the bidirectional rocker 413 slides downwards in the elongated slot 4211, the position of the connecting piece 421 connected with the end is unchanged, the other end of the bidirectional rocker 413 moves upwards and drives the connecting piece 421 and the first rod 422 at the end to move upwards, the first rod 421 drives the second rod 423 corresponding to the first rod to rotate, the connecting rod assembly 424 converts the rotation of the second rod 423 corresponding to the connecting rod assembly into linear motion, the second rod 423 drives the boosting mechanism 44 corresponding to the second rod to move linearly, and the steering clutch mechanism 43 corresponding to the second rod is separated by the boosting mechanism 44, so that the differential speed of the left wheel and the right wheel is formed, and the steering of the bulldozer is realized.

The above description is only for the preferred embodiment of the present invention, but the 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 present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A bulldozer, characterized by comprising:

a cab floor;

a seat disposed on the cab floor;

the operation table is arranged on the floor of the cab and is positioned on one side of the seat;

the steering control device comprises a rotating mechanism and a connecting rod mechanism connected with the rotating mechanism, the rotating mechanism penetrates through the operating platform, and the connecting rod mechanism is arranged in the operating platform and below the floor of the cab.

2. The bulldozer according to claim 1, wherein said turning mechanism comprises:

the single handle is arranged on the operating platform in a penetrating way;

the rotating shaft is arranged inside the operating platform, and one end of the rotating shaft is connected with the single handle;

the bidirectional rocker arm is arranged inside the operating platform, and the other end of the rotating shaft is connected to the middle of the bidirectional rocker arm.

3. The bulldozer according to claim 2, wherein said link mechanisms are two sets, two sets of said link mechanisms being connected on both sides of said turning mechanism, each set of said link mechanisms including:

the connecting piece is arranged inside the operating platform and is in sliding connection with one of the two ends of the bidirectional rocker arm;

the first rod body is arranged inside the operating platform and fixedly connected with the connecting piece;

the second rod body is arranged below the cab floor, and the second rod body is rotatably connected with the first rod body.

4. The bulldozer according to claim 3, wherein an elongated slot is provided in said connecting member, said one end of said bidirectional swing arm being movable up and down along said elongated slot.

5. A bulldozer according to claim 3, in which said first rod is a telescopic rod.

6. The bulldozer according to claim 1, wherein said steering control device further comprises two steering clutches disposed below a floor of the cab, two of said steering clutches corresponding to two sets of said link mechanisms capable of driving said steering clutches corresponding thereto to be disengaged.

7. The bulldozer according to claim 6, wherein said steering control device further comprises two power assist mechanisms disposed below said cab floor, said two power assist mechanisms being disposed between said link mechanism and said steering clutch mechanism.

8. A dozer as claimed in claim 7, wherein the power assist mechanism is a hydraulic power cylinder.

9. The bulldozer according to claim 7, wherein said steering control device further comprises two release levers for connecting said assist mechanism and said steering clutch mechanism.

10. The bulldozer according to claim 1, wherein said steering operation device further comprises a fixing member, said rotating mechanism being disposed through said fixing member, said fixing member being attached to a side surface of said console.