CN220809602U - Track shoe - Google Patents

Abstract

The utility model relates to the technical field of crawler engineering machinery, in particular to a crawler plate, which comprises a crawler plate upper plate body and a crawler plate lower plate body which is arranged below the crawler plate upper plate body in parallel, wherein end plate bodies are arranged at two ends of the crawler plate upper plate body and the crawler plate lower plate body, side plate bodies are arranged at two sides of the crawler plate upper plate body and the crawler plate lower plate body, the crawler plate upper plate body, the crawler plate lower plate body, the two end plate bodies and the two side plate bodies jointly enclose an integrally formed box body structure, first plate teeth and second plate teeth which are vertically and downwards protruded are arranged at two sides of the lower part of the box body structure, the first plate teeth and the second plate teeth are plate teeth with a curved belt radian, and two inner plate bodies are arranged in a cavity of the box body structure at intervals along the end direction of the box body structure. The utility model has the following beneficial effects: the method can be applied to ultra-large crawler-type engineering machinery with the weight of more than 300 tons, and can meet the strength requirement and the ground specific pressure requirement and simultaneously realize the feasibility of process realization.

Description

Track shoe

Technical Field

The utility model relates to the technical field of crawler-type engineering machinery, in particular to a track shoe.

Background

Crawler-type traveling systems are one type of traveling systems widely used in construction machines, and common crawler-type construction machines include tractors, bulldozers, loaders, pipe spreaders, single-bucket multi-bucket excavators, drills, and rock rigs. The crawler-type running system is mostly composed of driving wheels, crawler belts, supporting wheels, crawler belt tensioning devices, guide wheels, supporting chain wheels, suspensions connecting the supporting wheels with a machine body and the like, and the working principle of the crawler-type running system is that the running movement of engineering machinery on the ground is driven by driving torque transmitted to the driving wheels through an engine (the torque is changed into driving force, and the rotating speed is changed into vehicle moving speed). The crawler belt is a flexible chain link formed by connecting the crawler belt plates through crawler belt pins and crawler belt sections, and the driving wheel of the crawler belt running system only winds the crawler belt and does not roll on the ground, so that the whole weight of the machine is finally pressed on a plurality of the crawler belt plates through the supporting wheels.

Compared with the wheel type machine with the same horsepower, the crawler belt has large supporting surface and small grounding pressure, thus having small rolling resistance and being beneficial to exerting larger traction force. The existing track shoes are various, have different shapes and manufacturing processes, and can be generally divided into single-tooth track shoes, double-tooth track shoes, three-tooth track shoes, snow track shoes, rock track shoes, smooth track shoes, wet track shoes, rubber block track shoes and the like in order to realize the purpose of coping with different working environments (muddy water, uneven ground and stone soil), overcoming various bad working conditions (bad conditions, bad stress conditions and extremely easy abrasion) and meeting different working requirements (good adhesion performance, enough strength, rigidity and abrasion resistance and light weight as far as possible).

For example, patent document CN209814138U discloses a three-tooth track shoe, which comprises a track shoe main body, wherein the front edge of the track shoe main body is tilted upwards to form a tilted part, the rear edge of the track shoe main body is tilted downwards to form a tilted part, the front edge of the track shoe is provided with two U-shaped notches, the track shoe is provided with a first track tooth near the front edge, the rear edge of the track shoe is provided with a second track tooth, the middle part of the track shoe is provided with a third track tooth, and the track shoe main body is provided with a first mounting hole, a second mounting hole, a first mud hole and a second mud hole. Although the three-tooth track shoe can ensure that the track shoe has better stability and can improve the maneuverability of the machine during operation, the defect is that the track shoe teeth adopt a straight tooth form, are only suitable for medium and small machines from the aspect of stress conditions, and are not suitable for being applied to ultra-large track type engineering machines of 300 tons or more.

In addition, compared with the traditional track shoe, the track shoe of the oversized crawler engineering machinery is longer in width and heavier in weight in order to meet the strength requirement and the ground contact pressure requirement, so that the ordinary rolled steel track shoe cannot meet the strength requirement of the whole machine above 300 tons, and the forging process cannot realize the manufacturing of the oversized track shoe.

Therefore, the utility model is researched and designed for solving the problem of the running requirement of the ultra-large crawler-type engineering machinery in the prior art, so that the novel crawler plate can meet the strength requirement and the ground specific pressure requirement and simultaneously realize the feasibility of the process, and the novel crawler plate is used for better solving the problems in the prior art.

Disclosure of utility model

The utility model aims to solve one of the technical problems, and adopts the following technical scheme: the utility model provides a track shoe, is in including track shoe upper plate body and parallel arrangement the track shoe lower plate body of track shoe upper plate body with the both ends of track shoe lower plate body all are provided with the tip plate body track shoe upper plate body with the both sides of track shoe lower plate body all are provided with the lateral part plate body, track shoe upper plate body the track shoe lower plate body, two tip plate body and two the lateral part plate body encloses into integrated into one piece's box structure jointly, be provided with on one side of box structure upper portion to the outside guide tooth that extends and upwarp of lateral part plate body is equipped with the overlap joint lip of indent on the opposite side of box structure upper portion, be equipped with vertical downward arch and be used for first plate tooth and the second plate tooth in the ground connection under the operating condition in the both sides of box structure lower part, first plate tooth with the second plate tooth is the plate tooth of crooked area radian, is provided with two in the cavity inside of box structure along its tip direction interval, guide tooth, second plate body, two integral type plate tooth and box structure and two-shaped inner plate tooth.

In any of the above-mentioned schemes, it is preferable that the middle section of the first plate tooth near one side of the guide tooth and the middle section of the second plate tooth near one side of the lap lip are curved towards the inner side of the lower plate body of the track shoe and are arc-shaped, both ends of the first plate tooth are straight teeth parallel to the guide tooth, both ends of the second plate tooth are straight teeth inclined relative to the guide tooth, and the second plate tooth is wholly a W-shaped tooth.

In any of the above schemes, it is preferable that a bolt counterbore is provided at a lower end of each inner plate body, and a threaded through hole penetrating the inner plate body is provided at a top of the bolt counterbore.

In any of the above solutions, preferably, an end cavity is formed between each of the inner side plate bodies and the end plate body on the corresponding side, a first process hole is formed in the lower plate body of the track shoe corresponding to the end cavity, the end cavity is divided into a plurality of sub-cavities by an inner rib which is arranged in the end cavity and integrally formed with the box body structure, and a second process hole is formed in the side wall of the inner rib corresponding to each sub-cavity.

In any of the above schemes, preferably, the inner ribs are cross-shaped inner ribs, the end cavities at two ends are changed into square cavities by the cross-shaped inner ribs, the first process holes are formed in the lower plate body of the track shoe corresponding to the subcavities of the square cavities, and the second process holes are formed in the side walls of the end parts of the cross-shaped inner ribs.

In any of the above aspects, preferably, a plurality of square holes are provided on the track shoe upper plate body at positions outside the threaded through holes.

In any of the above aspects, it is preferable that a mud leakage hole is provided at a position on the track shoe upper plate body located inside the threaded through hole, and the mud leakage hole is provided at a position on the track shoe lower plate body opposite to the track shoe lower plate body.

In any of the above schemes, preferably, the bolt counterbore is of an oval-shaped structure.

In any of the above aspects, preferably, a track section mounting platform is protruded on the track shoe upper plate body at a position of the threaded through hole.

In any of the above schemes, preferably, two U-shaped notches are provided on the guide teeth, and chamfer angles are provided at both ends of the guide teeth.

Compared with the prior art, the utility model has the following beneficial effects:

1. The track shoe provided by the utility model can be applied to ultra-large track type engineering machinery with the weight of more than 300 tons, not only meets the requirement of specific pressure for grounding, but also meets the actual requirement of strength parameters such as adhesive force, bending strength, wear resistance and the like, and can be integrally formed in a casting mode, so that the track shoe has feasibility in process.

2. The track shoe provided by the utility model adopts the curved plate teeth with radian instead of the traditional straight teeth, the plate teeth in the form are better in stress condition when dealing with the running of the ultra-large track type engineering machinery of 300 tons and more, can bear higher bending stress, prevent the damage and bending of the track shoe, and adopts a box type structure, so that the strength of the track shoe is greatly increased, and the service life of the track shoe is prolonged.

3. According to the track shoe provided by the utility model, the bolt counter bores are designed into an oval shape, the track shoes with different hole pitches can be considered, the function of completing multiple purposes of the track shoe is realized, and the two ends of the guide teeth are designed into chamfer angles, so that the situation that the edges and corners of the track shoe are lack of materials after the track shoe is formed due to the fact that liquid metal does not reach the two ends of the guide teeth and is cooled because the plate body is too wide and the guide teeth are thinner in the casting process can be avoided.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or features are generally identified by like reference numerals throughout the drawings. In the drawings, the elements or components are not necessarily drawn to scale.

Fig. 1 is a perspective view of the upper plate body of the track shoe of the present utility model.

Fig. 2 is a perspective view of the lower plate body of the track shoe of the present utility model.

Fig. 3 is a top view of the track shoe upper plate body according to the present utility model.

Fig. 4 is a cross-sectional view taken along line B-B of fig. 3.

Fig. 5 is a cross-sectional view taken along line C-C of fig. 3.

Fig. 6 is a sectional view taken along line E-E of fig. 3.

In the figure, 1, a track shoe upper plate body; 2. a track shoe lower plate body; 3.1, end plate body; 3.2, side plate bodies; 4. an inner panel body; 5. guide teeth; 6. a lap lip; 7. a first plate tooth; 8. a second plate tooth; 9. a bolt countersink; 10. a threaded through hole; 11. cross-shaped inner ribs; 12. a mud leakage hole; 13. a first process hole; 14. a second process hole; 15. square holes; 16. track section mounting platform.

Detailed Description

Embodiments of the technical scheme of the present utility model will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and thus are merely examples, and are not intended to limit the scope of the present utility model. The specific structure of the utility model is shown in fig. 1-6.

The utility model provides a track shoe, is in including track shoe upper plate body 1 and parallel arrangement track shoe lower plate body 2 of track shoe upper plate body 1 below track shoe upper plate body 1 with the both ends of track shoe lower plate body 2 all are provided with tip plate body 3.1 track shoe upper plate body 1 with both sides of track shoe lower plate body 2 all are provided with lateral plate body 3.2, track shoe upper plate body 1 track shoe lower plate body 2, two tip plate body 3.1 and two lateral plate body 3.2 enclose integrated into one piece's box structure jointly, be provided with on one side on box structure upper portion to lateral plate body 3.2 outside extends and upwarp guide tooth 5, be equipped with recessed overlap lip 6 on the opposite side on box structure upper portion, be equipped with vertical downward arch and be used for under the operating condition first plate tooth 7 and the second plate tooth 8 of ground, first plate tooth 7 with second plate tooth 8 is crooked plate tooth body 4 and two inner diameter of the same, and the equal tooth profile of side plate body 4 in the equal tooth profile of side plate body 4, the equal tooth profile of tooth profile 4.

The novel track shoe adopts a box type structure, the structure is provided with an upper layer plate body and a lower layer plate body, the upper layer plate body and the lower layer plate body are supported together through a peripheral end plate body 3.1, a side plate body 3.2 and an inner side plate body 4, an upper layer track shoe plate body 1 is positioned at the inner side of an annular track, a lower layer track shoe plate body 2 is positioned at the outer side of the annular track, one side of the upper layer track plate body 1 extends out of the side plate body 3.2 and warps upwards to form guide teeth 5, the other side of the upper layer track plate body 1 is concaved downwards to form a lap joint lip 6, when a plurality of track shoes are connected in sequence in the same direction through track joints arranged on the upper layer track plate body 1, the guide teeth 5 and the lap lips 6 of the two adjacent track shoes can be in lap joint fit, so that the track shoes are mutually abutted to form a head-to-tail connected belt shape, the fact that excessive stress is generated due to the fact that stone is not clamped between the two adjacent track shoes when a track chain is at any position (including grounding, rotation around a driving wheel and a guide wheel and upper hanging positions) is avoided, then the track is driven to rotate through a driving system positioned on the inner side of an annular track, and as the two curved plate teeth on the lower plate body 2 of the track shoe are in actual contact with a working surface, adhesion and traction can be provided, and therefore the engineering machinery can walk.

Compared with the traditional track shoe, the track shoe provided by the utility model adopts a box type structure in order to meet the strength requirement and the ground specific pressure requirement, besides the support of the end plate body 3.1 and the side plate body 3.2 are arranged on the periphery, the support of the inner plate body 4 is arranged in the box type structure, so that the strength of the track shoe can be greatly increased, the running requirement of the ultra-large track type engineering machinery of 300 tons and above is met, the track shoe adopts the plate teeth with the radian of a bending belt instead of the traditional straight teeth, the plate teeth in the form are better stressed, and can bear higher bending stress, and the damage and bending of the track shoe are prevented, so that the service life of the track shoe is prolonged. Meanwhile, the track shoe can be integrally formed in a casting mode, and the track shoe has feasibility in process, so that the running requirement of the ultra-large track type engineering machinery with the weight of 300 tons or more is met.

In any of the above solutions, it is preferable that the middle section of the first plate tooth 7 near the guide tooth 5 and the middle section of the second plate tooth 8 near the lap lip 6 are curved towards the inner side of the track shoe lower plate body 2 and are arc-shaped, both ends of the first plate tooth 7 are straight teeth parallel to the guide tooth 5, both ends of the second plate tooth 8 are straight teeth inclined relative to the guide tooth 5, and the whole second plate tooth 8 is a W-shaped tooth.

The track shoe of the utility model adopts two curved plate teeth with radian, the two plate teeth are positioned on the lower plate body 2 of the track shoe, the first plate tooth 7 is close to one side of the guide tooth 5, the second plate tooth 8 is close to one side of the lap joint lip 6, the first plate tooth 7 and the second plate tooth 8 are in the form of circular arc teeth at the middle section between the two inner plate bodies 4 and are both curved towards the inner side of the lower plate body 2 of the track shoe, and the parts of the two plate teeth between each inner plate body 4 and the end plate body 3.1 at the corresponding side are in the form of straight teeth, but the two end angles of the first plate tooth 7 are parallel to the guide tooth 5, the two end angles of the second plate tooth 8 are non-parallel to the guide tooth 5, and the distance between the two plate teeth at the position of the end plate body 3.1 is smaller than the distance between the two plate teeth at the position of the inner plate body 4, so that the second plate tooth 8 is in the W-shaped plate tooth as a whole.

In any of the above solutions, it is preferable that a bolt counterbore 9 is provided at the lower end of each inner plate body 4, and a threaded through hole 10 penetrating the inner plate body 4 is provided at the top of the bolt counterbore 9.

The track shoe inner plate body 4 has not only a supporting function, but also another important function of providing a passage for the connecting bolt. Because the front and back adjacent track shoes are connected through the track sections, two threaded through holes 10 are reserved on each track shoe inner side plate body 4, connecting bolts penetrate through the track shoe inner side plate bodies 4 through the threaded through holes 10 to be connected to the track sections, and finally the track sections are fixed on the track shoe upper plate body 1 through four bolts. However, since the lower plate body 2 of the track shoe needs to contact with the working surface, if the bolt head protrudes out of the lower plate body 2 of the track shoe, under the action of load, the specific ground pressure of the track shoe can be changed, and the fastener is extremely easy to damage, therefore, a bolt counter bore 9 with larger aperture is reserved on the lower plate body 2 of the track shoe and at the position of the threaded through hole 10, and the counter bore can effectively improve the surface pressure distribution and the orifice deformation.

In any of the above solutions, it is preferable that an end cavity is formed between each inner side plate body 4 and the end plate body 3.1 on the corresponding side, a first process hole 13 is provided on the track shoe lower plate body 2 corresponding to the end cavity, the end cavity is divided into a plurality of sub-cavities by an inner rib which is provided inside the end cavity and is integrally formed with the box body structure, and a second process hole 14 is provided on the inner rib side wall corresponding to each sub-cavity.

In any of the above schemes, it is preferable that the inner rib is a cross-shaped inner rib 11, the end cavities at two ends are changed into a field-shaped cavity by the cross-shaped inner rib 11, the first process holes 13 are respectively formed in the track shoe lower plate body 2 corresponding to the sub-cavity positions of each field-shaped cavity, and the second process holes 14 are respectively formed in the side walls of the ends of the cross-shaped inner rib 11.

The track shoe with the box type structure is integrally formed in a casting mode, and the track shoe is internally provided with the two inner side plate bodies 4, so that the box type structure of the track shoe is divided into three cavities in sequence along the direction of the plate teeth. The middle cavity is a cavity, the cavities at two ends are internally provided with cross-shaped inner ribs 11, four ends of the cross-shaped inner ribs 11 are respectively connected with four side walls of the cavity, the original square cavity is changed into a square cavity, a first process hole 13 is further formed in the track shoe lower plate body 2 corresponding to the position of the sub-cavity of each square cavity, four first process holes 13 (eight first process holes 13 in total) are formed in the track shoe lower plate bodies 2 at two ends in a2 x 2 arrangement mode, and meanwhile, a second process hole 14 (eight second process holes 14 in total) is formed in the four ends of the cross-shaped inner ribs 11.

The integral strength of the box type track shoe can be improved by adding the inner ribs, the bending strength of the box type track shoe is improved, and the service life of the track shoe is effectively prolonged. Secondly, only reserve first technology hole 13 on the grip-pad lower plate body 2 and make the sand core position inaccurately in the pouring process easily, lead to the shaping foundry goods internal rib thickness to be different, casting precision is not good, consequently on having eight first technology holes 13 the basis on the internal rib of cross 11 continue to increase eight second technology holes 14, alright make the sand core of casting field font cavity into the sand core of integral type, solve the inaccurate problem of sand core position, very big improvement the precision of casting.

In any of the above embodiments, it is preferable that a plurality of square holes 15 are provided on the track shoe upper plate body 1 at positions outside the threaded through holes 10. The primary purpose of the reserved square holes 15 is to achieve weight reduction and production cost reduction under the requirement of meeting the strength.

In any of the above embodiments, it is preferable that a mud leakage hole 12 is provided at a position of the track shoe upper plate body 1 located inside the threaded through hole 10, and the mud leakage hole 12 is provided at a position of the track shoe lower plate body 2 opposite to each other.

The track sections are connected to the track plate upper plate body 1 of the track plate through the bolt counter bores 9 and the threaded through holes 10, the wheel trains of the track type engineering machinery are driven through the tracks between the track sections, and the middle cavity of the track plate (namely the cavity under the corresponding wheel trains) is a cavity, so that the mud leakage holes 12 are reserved in the upper plate body and the lower plate body of the middle cavity of the track plate, and mud on the track section can be automatically removed by means of the gear teeth when the track plate rotates around the driving wheel, and the mud is discharged through the mud leakage holes 12.

In any of the above embodiments, it is preferable that the bolt counterbore 9 has an elliptical structure. The bolt counter bore 9 is designed into an oval shape, so that the track shoe with different hole pitches can be considered, and the multifunctional function of the track shoe is realized.

In any of the above embodiments, it is preferable that a track section mounting platform 16 is protruded on the track shoe upper plate body 1 at the position of the threaded through hole 10.

In any of the above schemes, it is preferable that two U-shaped notches are provided on the guide teeth 5, and chamfer angles are provided at both ends of the guide teeth 5. According to the utility model, the two ends of the guide teeth 5 are designed into chamfer angles, so that the situation that the edges and the corners of the track shoe are lack of materials after the follow-up liquid metal cannot flow to the guide teeth 5 because the liquid metal does not reach the two ends of the guide teeth 5 and is cooled in the casting process due to the fact that the plate body is too wide and the guide teeth are thinner can be avoided.

The foregoing has shown and described the basic principles, main features and advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

The present utility model is not described in detail in the present application, and is well known to those skilled in the art.

Claims (10)

1. A track shoe, characterized in that: including track shoe upper plate body (1) and parallel arrangement be in track shoe lower plate body (2) of track shoe upper plate body (1) below track shoe upper plate body (1) with both ends of track shoe lower plate body (2) all are provided with tip plate body (3.1) track shoe upper plate body (1) with both sides of track shoe lower plate body (2) all are provided with lateral part plate body (3.2), track shoe upper plate body (1) track shoe upper plate body (2), both tip plate body (3.1) and both sides lateral part plate body (3.2) enclose integrated into one piece's box body structure jointly, be provided with the orientation on one side on box body structure upper portion lateral part plate body (3.2) outside extension and upwarp guide tooth (5), be equipped with concave overlap lip (6) down on the opposite side on box body structure upper portion, be equipped with vertical downward arch and be used for under the operating condition first plate tooth (7) and second tooth (8) that connect, the second tooth (7) and second tooth (8) are arranged in the box body structure upper portion, the inner diameter of tooth (7) is the same, the inner diameter of tooth (8) is the box body, the inner diameter of tooth (7) is the same, the inner diameter of tooth (7) is equal to the inner diameter of the guide tooth (7) is provided with, the inner diameter of the guide tooth (8) is equal to the inner diameter of the guide tooth (4) The second plate teeth (8) and the two inner plate bodies (4) are integrally formed with the box body type structure.

2. A track shoe according to claim 1, wherein: the middle section of the first plate tooth (7) near one side of the guide tooth (5) and the middle section of the second plate tooth (8) near one side of the lap lip (6) are both curved towards the inner side of the lower plate body (2) of the track shoe and are arc-shaped, two ends of the first plate tooth (7) are straight teeth parallel to the guide tooth (5), and two ends of the second plate tooth (8) are straight teeth inclined relative to the guide tooth (5) and are wholly W-shaped teeth.

3. A track shoe according to claim 2, wherein: the lower end of each inner side plate body (4) is provided with a bolt counter bore (9), and the top of the bolt counter bore (9) is provided with a threaded through hole (10) penetrating through the inner side plate body (4).

4. A track shoe according to claim 3, wherein: an end cavity is formed between each inner side plate body (4) and the corresponding side end plate body (3.1), a first process hole (13) is formed in the corresponding track shoe lower plate body (2) of the end cavity, the end cavity is divided into a plurality of subchambers by an inner rib which is arranged in the end cavity and integrally formed with the box body type structure, and a second process hole (14) is formed in the corresponding inner rib side wall of each subchamber.

5. A track shoe as claimed in claim 4, wherein: the inner ribs are cross-shaped inner ribs (11), end cavities at two ends are changed into field-shaped cavities through the cross-shaped inner ribs (11), first process holes (13) are formed in the track shoe lower plate body (2) corresponding to the subcavity positions of the field-shaped cavities, and second process holes (14) are formed in the side walls of the end portions of the cross-shaped inner ribs (11).

6. A track shoe as claimed in claim 5, wherein: a plurality of square holes (15) are arranged on the track shoe upper plate body (1) and positioned at the outer side of the threaded through hole (10).

7. A track shoe as claimed in claim 6, wherein: the track shoe upper plate body (1) is provided with a mud leakage hole (12) at the inner side of the threaded through hole (10), and the track shoe lower plate body (2) is provided with the mud leakage hole (12) at the opposite position.

8. A track shoe as claimed in claim 7, wherein: the bolt counter bore (9) is of an oval structure.

9. A track shoe as claimed in claim 8, wherein: a track section mounting platform (16) protrudes from the track plate upper plate body (1) and is positioned at the position of the threaded through hole (10).

10. A track shoe as claimed in claim 9, wherein: two U-shaped notches are formed in the guide teeth (5), and chamfer angles are formed in the two ends of the guide teeth (5).