CN217299104U

CN217299104U - Traveling device of development machine

Info

Publication number: CN217299104U
Application number: CN202221273294.1U
Authority: CN
Inventors: 胡明亮; 徐子良; 方华
Original assignee: Changzhou Huagu Machinery Technology Co ltd
Current assignee: Changzhou Huagu Machinery Technology Co ltd
Priority date: 2022-05-25
Filing date: 2022-05-25
Publication date: 2022-08-26
Anticipated expiration: 2032-05-25

Abstract

The utility model discloses a heading machine running gear, the track subassembly respectively with drive wheel, leading wheel, the cooperation of thrust wheel, still include two at least first tensioning subassemblies, the one end of first tensioning subassembly is cooperated with the up end of walking frame and is fixed with the walking frame, the other end and the track subassembly cooperation of first tensioning subassembly, first tensioning subassembly includes base, guide rail, slide, take-up pulley, sharp adjusting part, the one end and the walking frame of base are fixed, are equipped with the through-hole on the base, the one end of guide rail is fixed with the other end of base, the guide rail is two, and be equipped with the guide part on two guide rail lateral wall faces in opposite directions, slide and guide part cooperation, the tip of take-up pulley is rotationally installed on the slide, sharp adjusting part passes through-hole and slide cooperation on the base. The utility model discloses can not lead to the tensioning assembly to warp or damage, make the tensioning state of tensioning wheel to crawler belt assembly keep effective.

Description

Traveling device of development machine

Technical Field

The utility model relates to a entry driving machine technical field, concretely relates to entry driving machine running gear.

Background

The materials excavated by the excavator mainly comprise soil, coal, silt, soil subjected to pre-loosening and rocks. With the development of engineering machinery in various fields, the development of excavators is relatively fast, and the excavator becomes one of the most important engineering machinery in engineering construction.

CN201148871Y discloses a heading machine walking part, which comprises a driving wheel, a walking frame, a supporting wheel, a track assembly, a tensioning wheel, etc., wherein the driving wheel and the tensioning wheel are installed at two ends of the walking frame, the tensioning wheel adopts a chain wheel structure, the supporting wheel is installed below the walking frame, the driving wheel, the tensioning wheel and the supporting wheel are wrapped with the track assembly, two rows of stud bolts are installed on the walking frame, and the walking part is connected with the body part by the two rows of stud bolts.

The walking part drives the track assembly by the driving wheel, the tensioning wheel tensions the track assembly, the thrust wheel supports the walking frame, and the track assembly rotates to drive the walking part to move forward or backward.

In the above-described configuration, the tension pulley is attached to the end portion of the traveling frame, and in the traveling unit having such a configuration, since a force generated at the end portion of the traveling frame when the traveling unit operates is large, the tension state of the tension pulley is likely to fail due to the impact of the end portion urging force of the tension pulley. Therefore, the heading machine traveling part of the above structure is to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model provides a tunneller running gear, the utility model discloses can not lead to the tensioning assembly to warp or damage, make the tensioning state of tensioning wheel to crawler belt assembly keep effective.

The technical scheme for solving the problems is as follows:

a heading machine walking device comprises a walking frame, a driving wheel, a guide wheel, a supporting wheel and a track assembly, wherein the driving wheel is rotatably arranged at one end of the walking frame, the guide wheel is rotatably arranged at the other end of the walking frame, the supporting wheel is arranged on the lower surface of the walking frame, the track assembly is respectively matched with the driving wheel, the guide wheel and the supporting wheel, the heading machine walking device also comprises at least two first tensioning assemblies, one end of each first tensioning assembly is matched with the upper end surface of the walking frame and is fixed with the walking frame, the other end of each first tensioning assembly is matched with the track assembly, each first tensioning assembly comprises a base, a guide rail, a sliding seat, a tensioning wheel and a linear adjusting assembly, one end of each base is fixed with the walking frame, a through hole is formed in each base, one end of each guide rail is fixed with the other end of each base, the two guide rails are arranged, guide parts are arranged on opposite side wall surfaces of the two guide rails, and the sliding seats are matched with the guide parts, the end part of the tension wheel is rotatably arranged on the sliding seat, and the linear adjusting assembly penetrates through a through hole in the base to be matched with the sliding seat.

For the structure in the utility model, because the track subassembly is when removing along the upper portion of walking frame, from the atress angle, will be less than the both ends of walking frame lower part far away, consequently, the utility model discloses in, with first tensioning subassembly setting at the up end of walking frame, the track subassembly will be much less at the impact force that produces first tensioning subassembly, like this, can not lead to first tensioning subassembly to warp or damage, makes the tensioning state of tensioning wheel to track subassembly keep effective.

Drawings

FIG. 1 is a schematic view of a roadheader running gear;

FIG. 2 is a perspective view of a first tensioning assembly;

FIG. 3 is a schematic view of FIG. 2 with a portion of the parts hidden;

FIG. 4 is a diagram of another embodiment of the first tensioning assembly;

FIG. 5 is a schematic view of a scraping mechanism;

reference numbers in the drawings:

the device comprises a walking frame 1, a driving wheel 2, a guide wheel 3, a thrust wheel 4, a crawler assembly 5, a base 6, a bottom plate 6a, a ring wall 6b, a cover 6c, a guide rail 7, a guide part 7a, a sliding seat 8, a tension wheel 9, a bolt 10, a first clamping nut 11, a baffle plate 12, a support 13, a blocking component 14 and a cross beam A.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

In order to make the purpose, technical solution and advantages of the present invention clearer, the drawings in the embodiments of the present invention are combined below to carry out more detailed description on the technical solution in the embodiments of the present invention. The described embodiments are some, but not all embodiments of the invention. The embodiments described below by referring to the drawings are exemplary and intended to explain the present invention, but cannot be simply construed as a limitation of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention. The following detailed description of embodiments of the present invention is made with reference to the accompanying drawings:

in the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the scope of the invention.

As shown in fig. 1, the heading machine walking device comprises a walking frame 1, a driving wheel 2, a guide wheel 3, a thrust wheel 4 and a crawler belt assembly 5, wherein the driving wheel 2 is rotatably installed at one end of the walking frame 1, the guide wheel 3 is rotatably installed at the other end of the walking frame 1, the thrust wheel 4 is installed on the lower surface of the walking frame 1, and the crawler belt assembly 5 is respectively matched with the driving wheel 2, the guide wheel 3 and the thrust wheel 4. In this embodiment, the driving wheel 2 drives the track assembly 5 to move, the guiding wheel 3 guides the track assembly 5, a shaft (not shown) is fixed at the other end of the walking frame 1, the guiding wheel 3 is matched with the shaft, and the position of the shaft cannot be adjusted, so that the position of the guiding wheel 3 in this embodiment cannot be adjusted. A supporting seat is fixed on the lower surface of the walking frame 1, and a supporting wheel 4 is rotatably arranged on the supporting seat.

As shown in fig. 1, the roadheader walking device in this embodiment further includes at least two first tensioning assemblies, the first tensioning assemblies are engaged with the track assemblies 5, and the first tensioning assemblies jack up the track assemblies 5, so that a spacing space is formed between the track assemblies 5 and the walking frame 1, and the spacing space can accommodate an end of the cross beam a, so that the cross beam a is fixed with the walking frame 1 into a whole after the cross beam a is engaged with the upper surface of the walking frame 1.

As shown in fig. 2 and 3, one end of the first tensioning assembly is matched with the upper end face of the walking frame 1 and fixed with the walking frame 1, the other end of the first tensioning assembly is matched with the track assembly 5, the first tensioning assembly comprises a base 6, two guide rails 7, a sliding seat 8, a tensioning wheel 9 and a linear adjusting assembly, one end of the base 6 is fixed with the walking frame 1, a through hole is formed in the base 6, one end of each guide rail 7 is fixed with the other end of the base 6, the number of the guide rails 7 is two, guide portions 7a are arranged on the opposite side wall faces of the two guide rails 7, the sliding seat 8 is matched with the guide portions 7a, the end of the tensioning wheel 9 is rotatably mounted on the sliding seat 8, and the linear adjusting assembly passes through the through hole in the base 6 and is matched with the sliding seat 8.

As shown in fig. 1 to 3, since the track assembly 5 is far smaller than the two end portions of the lower portion of the walking frame 1 from the stress point of view when moving along the upper portion of the walking frame 1, the first tensioning assembly is disposed on the upper end surface of the walking frame 1, the impact force generated by the track assembly 5 on the first tensioning assembly is much smaller, and thus, the first tensioning assembly is not deformed or damaged.

As shown in fig. 2 and 3, in the present embodiment, the linear adjustment assembly and the sliding base 8 can be directly engaged, for example, the linear adjustment assembly abuts against the sliding base 8, and since the linear adjustment assembly is engaged with the sliding base 8, during adjustment, the sliding base 8 is driven to move by the linear adjustment assembly, so as to move the tension wheel 9 mounted on the sliding base 8, thereby changing the tension force generated by the tension wheel 9 on the track assembly 5.

As shown in fig. 4, when the linear adjusting assembly is indirectly engaged with the sliding seat 8, the sliding seat 8 is not connected with the linear adjusting assembly, and the sliding seat 8 itself can move relative to the linear adjusting assembly, for example, a spring is sleeved on the linear adjusting assembly, one end of the spring abuts against the base 6, and the other end of the spring abuts against the sliding seat 8, so that the tensioning wheel 9 and the track assembly 5 are always kept in the engagement relationship by the tension of the spring, for example, when the track assembly 5 applies pressure to the tensioning wheel 9, the sliding seat 8 moves downwards and generates a compression force on the spring, or when the track assembly 5 generates a small amount of upward displacement, at this time, a gap is formed between the track assembly 5 and the tensioning wheel 9, and the sliding seat 8 moves upwards by the tension of the spring, thereby pushing the tensioning wheel 9 to move upwards, so that the tensioning wheel 9 and the track assembly 5 are kept in engagement.

As shown in fig. 2, in this embodiment, the base 6 includes a bottom plate 6a, a circular wall 6b, and a cover 6c, one end of the circular wall 6b is fixed to the walking frame 1, the other end of the circular wall 6b is fixed to the base 6, a part of the linear adjustment assembly is located in the circular wall 6b, an opening is formed in the circular wall 6b, and the cover 6c is matched with the opening. The annular wall 6b is arranged around the linear adjusting assembly in a surrounding mode, and the annular wall 6b protects the linear adjusting assembly and prevents muddy water or other substances from corroding the linear adjusting assembly. When the tension of the idler pulley 9 on the crawler belt assembly 5 needs to be adjusted by the linear adjustment assembly, the cover 6c may be opened and then the linear adjustment assembly may be operated.

As shown in fig. 2 and 3, in the present embodiment, the linear adjustment assembly includes a bolt 10 and two first clamping nuts 11, one end of the bolt 10 passes through a through hole on the base 6 and then is engaged with the slide carriage 8, the two first clamping nuts 11 are respectively located at two ends of the base 6, and the bolt 10 and the base 6 are fastened together after the two first clamping nuts 11 are connected with the bolt 10.

As shown in fig. 2 and 3, when adjustment is required, the cover 6c is opened, the first clamping nuts 11 are rotated to release the clamping of the base 6 by the two first clamping nuts 11, and after the bolt 10 is adjusted to a required position, the base 6 is re-clamped by the two first clamping nuts 11.

As shown in fig. 2 and 3, the linear adjustment assembly further includes baffles 12 disposed on both sides of the tension wheel 9, the arrangement direction of the baffles 12 is not parallel to the radial direction of the tension wheel 9, and the two baffles 12 are in a splayed shape, with a gap between the tension wheel 9 and the baffles 12. In this embodiment, if the end of the tensioning wheel 9 is worn to cause the tensioning wheel 9 to possibly displace along the axial direction thereof, the end of the tensioning wheel 9 is prevented from separating from the sliding seat 8, and the position of the tensioning wheel 9 is limited by the blocking action of the baffle 12, so as to ensure that the tensioning of the tensioning wheel 9 on the track assembly 5 is in an effective state.

As shown in fig. 1 and 5, the walking device inevitably sticks soil and other substances on the crawler belt assembly 5 during walking, if the soil layers are too thick, a large obstacle is formed to the movement of the crawler belt assembly 5, therefore, the embodiment includes a scraping mechanism for scraping off the soil on the inner side surface of the crawler belt assembly 5, the scraping mechanism includes a support 13 and a blocking component 14, the support 13 is located on one side of the first tensioning assembly and is fixed with the walking frame 1, one end of the blocking component 14 is fixed with the support 13, and the other end of the blocking component 14 is in clearance fit with the crawler belt assembly 5.

As shown in fig. 1 and 5, when the soil on the track assembly 5 is too thick, and the track assembly 5 passes through the scraping mechanism, since the gap between the other end of the blocking member 14 and the track assembly 5 is small, a part of the soil layer is scraped by the blocking member 14 under the blocking action of the blocking member 14, so that the thickness of the soil layer on the track assembly 5 is not too thick, thereby reducing the obstruction of the track assembly 5.

As shown in fig. 1 and 5, the track assembly 5 is influenced by the terrain and the like during the moving process, the track assembly 5 is fluctuated in the height direction of the heading machine, in order to avoid the track assembly 5 from being caught by the blocking member 14 when fluctuated, the end surface of the end part of the blocking member 14 which is in clearance fit with the track assembly 5 is preferably spherical, and the structure enables the track assembly 5 to smoothly pass through the blocking member 14 even if the end surface of the end part of the blocking member 14 abuts against the blocking member 14 when the track assembly 5 fluctuates.

Claims

1. A heading machine walking device comprises a walking frame (1), a driving wheel (2), a guide wheel (3), a thrust wheel (4) and a track assembly (5), wherein the driving wheel (2) is rotatably arranged at one end of the walking frame (1), the guide wheel (3) is rotatably arranged at the other end of the walking frame (1), the thrust wheel (4) is arranged on the lower surface of the walking frame (1), the track assembly (5) is respectively matched with the driving wheel (2), the guide wheel (3) and the thrust wheel (4), the heading machine walking device is characterized by further comprising at least two first tensioning assemblies, one end of each first tensioning assembly is matched with the upper end face of the walking frame (1) and fixed with the walking frame (1), the other end of each first tensioning assembly is matched with the track assembly (5), each first tensioning assembly comprises a base (6), a guide rail (7), a sliding seat (8), a tensioning wheel (9) and a linear adjusting assembly, the one end of base (6) is fixed with walking frame (1), is equipped with the through-hole on base (6), and the one end of guide rail (7) is fixed with the other end of base (6), and guide rail (7) are two, and are equipped with guide part (7a) on two guide rail (7) lateral wall faces in opposite directions, slide (8) and guide part (7a) cooperation, the tip of take-up pulley (9) is rotationally installed on slide (8), straight line adjusting part passes through-hole and slide (8) cooperation on base (6).

2. The walking device of the heading machine according to claim 1, wherein the base (6) comprises a bottom plate (6a), a circular wall (6b) and a cover (6c), one end of the circular wall (6b) is fixed with the walking frame (1), the other end of the circular wall (6b) is fixed with the base (6), one part of the linear adjusting assembly is located in the circular wall (6b), an opening is formed in the circular wall (6b), and the cover (6c) is matched with the opening.

3. The walking device of the heading machine according to claim 1 or 2, wherein the linear adjusting assembly comprises a bolt (10) and two first clamping nuts (11), one end of the bolt (10) penetrates through a through hole in the base (6) and then is matched with the sliding seat (8), the two first clamping nuts (11) are respectively located at two ends of the base (6), and the two first clamping nuts (11) are connected with the bolt (10) so that the bolt (10) and the base (6) are fastened into a whole.

4. The traveling device of the heading machine according to claim 3, wherein the linear adjustment assembly further comprises baffles (12) arranged on both sides of the tension wheel (9), the arrangement direction of the baffles (12) is not parallel to the radial direction of the tension wheel (9), the two baffles (12) are splayed, and a gap is formed between the tension wheel (9) and the baffles (12).