CN219295550U

CN219295550U - Crawler chassis structure

Info

Publication number: CN219295550U
Application number: CN202223519969.9U
Authority: CN
Inventors: 籍伟; 史建忠
Original assignee: Jiangyin Kaida Electrial & Mechanical Manufacturing Co ltd; Zhejiang Fuxing Shipping Co ltd
Current assignee: Jiangyin Kaida Electrial & Mechanical Manufacturing Co ltd; Zhejiang Fuxing Shipping Co ltd
Priority date: 2022-12-28
Filing date: 2022-12-28
Publication date: 2023-07-04
Anticipated expiration: 2032-12-28

Abstract

The utility model discloses a crawler chassis structure, which comprises a chassis, wherein the chassis comprises a crawler and a driving wheel meshed with the crawler; the support assembly is connected with the chassis and is provided with a support surface; the motor is fixed on the supporting surface, and the ground clearance of the motor is larger than or equal to the minimum ground clearance of the supporting component; and the motor is in transmission connection with the driving wheel through the transmission assembly. According to the utility model, the motor is arranged on the supporting component, the height of the crawler belt is not required to be adjusted, the passing height of the whole chassis structure is not influenced, and the problem of installation of the driving motor is solved.

Description

Crawler chassis structure

Technical Field

The utility model relates to the technical field of crawler-type mechanical equipment, in particular to a crawler chassis structure for mounting a lifting motor.

Background

Modern open-pit mines and earthwork construction sites are relatively muddy in roads and difficult to pass, and in order to cope with severe road environments, crawler chassis type self-walking equipment (such as electric shovels, diggers and the like) is generally used for carrying out mining, soil digging, road filling and the like. The commonly used crawler chassis is generally driven by hydraulic pressure, but in a northern large open-air mine, the winter is cold and long, and the hydraulic pressure is used for driving more trouble. For example, oil is required to be changed during season changing; in addition, in extremely cold weather, even the best hydraulic oil can freeze, so that a motor driving mode is generally adopted for the crawler chassis on the mines. However, the dead weight of the large-sized equipment is relatively large, the required crawler chassis bearing capacity is large in order to ensure a certain running speed, and the larger the required driving motor power is, the larger the motor outline size is. If a common installation mode is used, the passing height of the chassis is affected by oversized motor, and if a large hard obstacle is encountered, the motor can be crashed. Accordingly, there is a need in the art for an electrically driven track pan structure that does not affect the ride height.

The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.

Disclosure of Invention

The utility model aims to provide a crawler chassis structure which solves the problem of motor installation on the premise of not increasing the original chassis height and not influencing the original passing height.

To achieve the above object, the present utility model provides a crawler chassis structure including a chassis including a crawler and a driving wheel engaged with the crawler; the support assembly is connected with the chassis and is provided with a support surface; the motor is fixed on the supporting surface, and the ground clearance of the motor is larger than or equal to the minimum ground clearance of the supporting component; and the motor is in transmission connection with the driving wheel through the transmission assembly.

In one or more embodiments, the support assembly includes a carrier having a distal end connected to the track by a load bearing wheel and a mounting platform supported on the carrier, the support surface being formed on top of the mounting platform.

In one or more embodiments, the mounting platform and the bearing frame are arranged at intervals up and down through a cushion block.

In one or more embodiments, the carrier and/or mounting platform are formed from square steel bent or welded.

In one or more embodiments, the load carrier includes a horizontally disposed cross beam and a support beam extending obliquely downward from an end of the cross beam, the load carrier wheel being rotatably disposed at an end of the support beam.

In one or more embodiments, the transmission assembly includes a first gear and a second gear that are meshed with each other, the first gear being coaxially connected to the driving wheel, the second gear being coaxially connected to a driving wheel, the driving wheel being connected to the output end of the motor via a driving member.

In one or more embodiments, the transmission is a belt.

In one or more embodiments, the mounting platform is provided with a channel through which the driving element passes. The motor also comprises a first protective cover for covering the output end of the motor, and/or a second protective cover for covering the driving wheel, and/or a third protective cover for covering the first gear and the second gear.

In one or more embodiments, a backing plate is disposed between the motor and the mounting platform.

Compared with the prior art, the crawler chassis structure has the advantages that the supporting component is additionally arranged on the chassis, the motor is arranged on the supporting component, the bottom of the motor is higher than the lowest ground clearance height of the crawler chassis, the passing height is not affected, and therefore the chassis is not required to be increased to meet the passing requirements.

Drawings

Fig. 1 is a schematic view of a track pan structure according to an embodiment of the utility model.

Fig. 2 is a schematic diagram of a driving structure according to an embodiment of the present utility model.

FIG. 3 is a schematic view of one of the angles according to an embodiment of the present utility model.

The main reference numerals illustrate:

100-crawler chassis structure, 10-chassis, 11-crawler, 12-driving wheel, 20-supporting component, 21-bearing frame, 211-crossbeam, 212-supporting beam, 22-mounting platform, 221-channel, 23-bearing wheel, 24-cushion, 25-first protection cover, 26-second protection cover, 27-third protection cover, 30-motor, 40-transmission component, 41-first gear, 42-second gear, 43-driven wheel, 44-transmission piece, 50-backing plate.

Detailed Description

The following detailed description of embodiments of the utility model is, therefore, to be taken in conjunction with the accompanying drawings, and it is to be understood that the scope of the utility model is not limited to the specific embodiments.

Throughout the specification and claims, unless explicitly stated otherwise, the term "comprise" or variations thereof such as "comprises" or "comprising", etc. will be understood to include the stated element or component without excluding other elements or components.

As shown in fig. 1 and 2, a crawler chassis structure 100 in accordance with an embodiment of the present utility model includes a chassis 10, a support assembly 20, a motor 30, and a transmission assembly 40. Wherein the chassis 10 comprises a track 11 and a driving wheel 12 meshed with the track 11, the supporting assembly 20 is connected with the chassis 10 and provides a supporting surface for fixing the motor 30, and the motor 30 drives the driving wheel 12 to rotate through the transmission assembly 40.

As shown in fig. 1, since the motor 30 is supported on the support assembly 20 with a ground clearance not less than the minimum ground clearance of the support assembly 20, the overall passing height is not affected without changing the structure of the chassis 10.

The support assembly 20 comprises a carriage 21, wherein the end of the carriage 21 is supported on the tracks 11 by means of load-bearing wheels 23, and a mounting platform 22, which is supported on the carriage 21. In this embodiment, the bearing frame 21 is a bottom supporting structure, and is used for bearing the mounting platform 22 and other devices above, the two-section supporting structure can ensure the height of the motor 30 and the overall passing height, and meanwhile, the mounting platform 22 expands the space above the bearing frame 21, so that other devices except the motor 30 can be fixed. The number of load-bearing wheels 23 may provide support for the carriage 21 against deformation, and the particular number of load-bearing wheels 23 may be set based on the length of the track 21 and the length of the carriage 22 within the track 21, and the present embodiment is not limited to a particular number.

Preferably, in order to improve the supporting effect, a cushion block 24 is arranged between the mounting platform 22 and the bearing frame 21, so as to improve the contact area, prevent the bearing frame 21 from deforming or even breaking due to the overweight weight above, and provide a certain damping effect.

In this embodiment, the carrier 21 and the mounting platform 22 are formed by bending or welding square steel. As shown in fig. 1, the mounting platform 22 is composed of a plurality of square steels and flat steel plates, and the motor 30 is fixed above one of the square steels to improve the supporting effect, and similarly, the part of the bearing frame 21 connected with the mounting platform 22 is also made of the square steels. Hollow square steel can provide rigidity while minimizing weight to improve flexibility. It should be understood that the carrier 21 and the mounting platform 22 in this embodiment may be made of other materials, and this embodiment is not limited thereto.

As shown in fig. 1, the carrier 21 includes a horizontally disposed beam 211 portion, and a support beam 212 portion extending obliquely downward at the end of the beam 211, and the load-bearing wheels 23 are disposed at the end of the support beam 212. The height of the bottom of the cross beam 211 is the passing height of the entire crawler chassis structure, and thus the support beam 212 is inclined to increase the passing height.

The transmission assembly 40 comprises a first gear 41 and a second gear 42 which are meshed with each other, the first gear 41 is coaxially connected with the driving wheel 12, the second gear 42 is coaxially connected with a driven wheel 43, and the driven wheel 43 is connected with the output end of the motor 30 through a transmission member 44.

As shown in fig. 2, in particular to the gear arrangement form, when the first gear 41 is larger and the second gear 42 is smaller, the second gear 42 rotates one turn and the first gear 41 rotates only by a certain angle, the load of the motor 30 is smaller and the overall travelling speed is slower, and the form is suitable for the case of heavy-load low-speed running; when the first gear 41 is smaller and the second gear 42 is larger, the second gear 42 can rotate the first gear 41 for several turns, and at this time, the load of the motor 30 is larger and the overall running speed is faster, so that the form is suitable for the condition of low-load high-speed running. It will be appreciated from the above description that gear sets of different sizes may be provided to accommodate different situations.

Further, the driven wheel 43 and the output end of the motor 30 may be pulleys, and the corresponding transmission member 44 may be a belt. The belt drive is of a lighter weight, and the number of teeth and the number of belts of the corresponding pulleys can be selected according to the actual situation, and the embodiment is not limited. It will be appreciated that the form of chain drive may also be selected in other embodiments to provide a more efficient drive effect.

As shown in fig. 3, the mounting platform 22 is provided with a channel 221 through which the transmission member 44 passes.

Because the environment where the crawler belt is required to be used is relatively harsh, muddy water, sand and stone are often used, and the transmission assembly 40 is of a relatively precise structure in the present disclosure, a corresponding protection device needs to be disposed outside the transmission assembly 40. Specifically, in the present embodiment, a first shield 25 for covering the output end of the motor 30, a second shield 26 for covering the driving wheel, and a third shield 27 for covering the first gear and the second gear are provided. As shown in fig. 1, the first protective cover 25 and the second protective cover 26 are respectively fixed at the upper end and the lower end of the mounting platform 22, and the third protective cover 27 is fixed on the bearing frame 21, and is preferably fixed by adopting a bolt fixing mode, so that the disassembly and maintenance are convenient. The protective cover can effectively prevent muddy water and sand from invading the transmission assembly 40, and avoid the transmission process from being influenced or even failing.

Preferably, in order to increase the contact area between the motor 30 and the mounting platform 22 and prevent the mounting platform 22 from being deformed due to excessive force applied by the motor 30, a backing plate 50 is disposed between the motor 30 and the mounting platform 22, and the motor 30, the backing plate 50 and the mounting platform 22 are preferably fastened by bolts.

The foregoing descriptions of specific exemplary embodiments of the present utility model are presented for purposes of illustration and description. It is not intended to limit the utility model to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain the specific principles of the utility model and its practical application to thereby enable one skilled in the art to make and utilize the utility model in various exemplary embodiments and with various modifications as are suited to the particular use contemplated. It is intended that the scope of the utility model be defined by the claims and their equivalents.

Claims

1. A crawler chassis structure, comprising:

a chassis including a track, and a drive wheel engaged with the track;

the support assembly is connected with the chassis and is provided with a support surface;

the motor is fixed on the supporting surface, and the ground clearance of the motor is larger than or equal to the minimum ground clearance of the supporting component;

and the motor is in transmission connection with the driving wheel through the transmission assembly.

2. The track chassis structure of claim 1, wherein the support assembly includes a carriage and a mounting platform, the carriage being connected at its ends to the tracks by load bearing wheels, the mounting platform being supported on the carriage, the support surface being formed on top of the mounting platform.

3. The crawler chassis structure as in claim 2 wherein said mounting platform and said carriage are spaced up and down by spacer blocks.

4. A crawler chassis structure as in claim 2 wherein said carriage and/or mounting platform are formed from square steel bent or welded.

5. The crawler chassis structure as in claim 2 wherein said carriage includes a horizontally disposed cross beam and a support beam extending obliquely downward from a distal end of the cross beam, said wheel being rotatably disposed at a distal end of said support beam.

6. The crawler chassis structure as in claim 2 wherein said transmission assembly includes a first gear and a second gear engaged with each other, said first gear being coaxially connected to said drive wheel, said second gear being coaxially connected to a transmission wheel, said transmission wheel being connected to an output end of said motor via a transmission member.

7. The track chassis structure of claim 6, wherein the transmission is a belt.

8. The track pan structure of claim 6, wherein the mounting platform defines a channel through which the driving member passes.

9. The crawler chassis structure as in claim 6 further comprising a first shield covering said motor output and/or a second shield covering said drive wheel and/or a third shield covering said first and second gears.

10. The crawler chassis structure as in claim 1 wherein a backing plate is disposed between the motor and the mounting platform.