CN209683849U - Novel track plate and new type mining heavy crawler assembly - Google Patents

Abstract

The utility model relates to a kind of Novel track plate, the creeper tread includes creeper tread ontology, and setting offers a mud leakage hole and crawler belt mounting hole there are two grouser on creeper tread ontology between the creeper tread ontology between two grousers, and the mud leakage hole is circular hole.The utility model also provides a kind of new type mining heavy crawler assembly.The utility model has the following beneficial effects: passing through Novel track plate described in the utility model and new type mining heavy crawler assembly, common track rail assembly is solved the problems such as the bending of mine operating condition lower track plate, the locking of pin shaft guide, Chain Link crack, improve crawler belt takes off ground ability, extend the service life of track rail assembly, with good economic efficiency and social benefit.

Description

Novel track plate and new type mining heavy crawler assembly

Technical field

The utility model relates to a kind of Novel track plates and new type mining heavy crawler assembly, belong to engineering machinery technology neck Domain.

Background technique

For excavator when mine building site carries out operation, condition is relatively more severe, and the requirement to chassis member is higher, creeper tread It is weak to take off ground ability, walking tractive force is insufficient.Simultaneously as mine operating condition, sandstone is more and volume is larger, can not be from common crawler belt The discharge of plate mud leakage hole, creeper tread bending deformation, initial failure are more.Heavy duty causes the locking of pin shaft guide, Chain Link chip off-falling, commonly Track rail assembly be unable to satisfy requirement.

Utility model content

According to the above-mentioned deficiencies in the prior art, technical problem to be solved by the utility model is: in order to solve the above problem One of, a kind of Novel track plate is provided, in order to solve the above problem two, a kind of new type mining heavy crawler assembly is provided.

One of in order to solve the above problem, Novel track plate described in the utility model, the creeper tread includes creeper tread sheet Body, on creeper tread ontology setting there are two grouser, offered between the creeper tread ontology between two grousers a mud leakage hole and Crawler belt mounting hole, the mud leakage hole is circular hole, in the case where not increasing cost, two tooth creeper tread maximum stresses and maximum distortion Amount becomes smaller, and intensity is higher, and the diameter of mud leakage hole is φ 80mm, and big mud leakage hole is improved compared to long strip type mud leakage hole effective area It 3 times, is easier to that stone is allowed therefrom to leak out, reduces the inordinate wear of creeper tread, improve the service life of creeper tread.

The high settings such as described two grousers are highly 45 ~ 50mm, and the high A2 of tooth is higher than A1, and it is stronger to take off ground ability.

In order to solve the above problem two, new type mining heavy crawler assembly described in the utility model, including left Chain Link, Right Chain Link, guide, pin shaft, sealing ring, creeper tread, nuts and bolt further include above-mentioned creeper tread.

The middle part of the guide is wear-resistant section, and the both ends of wear-resistant section have been wholely set extended segment, and the outer diameter of wear-resistant section is greater than The outer diameter of extended segment.

The guide center offers the sets of holes that bus is circular arc line.

The sets of holes bus is made of EFG sections of circular arcs, EFG sections of arc radius about 10000-20000mm, is pressed at guide After Chain Link sets of holes, since the two is interference fit, cause to be compressed at extended segment, EFG sections of circular arcs become straight line, pin shaft and pin The contact site of set is not in the case where both ends E, G diameter is less than middle F, prevents shearing and stress from concentrating.

The side of the left Chain Link has set end reinforcing rib Y2, and the upper end of set end reinforcing rib Y2 is improved to center line MN Place, dangerouse cross-section area increase, and improve bearing capacity, can effectively prevent cracking phenomena occur.

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

By Novel track plate described in the utility model and new type mining heavy crawler assembly, it is total to solve common crawler belt At the problems such as the bending of mine operating condition lower track plate, the locking of pin shaft guide, Chain Link crack, improve crawler belt takes off ground ability, Extend the service life of track rail assembly, with good economic efficiency and social benefit.

Detailed description of the invention

Fig. 1 is the structural schematic diagram one of existing mining heavy crawler assembly；

Fig. 2 is the structural schematic diagram two of existing mining heavy crawler assembly；

Fig. 3 is the structural schematic diagram one of existing creeper tread；

Fig. 4 is the structural schematic diagram two of existing creeper tread；

Fig. 5 is the structural schematic diagram one of the utility model embodiment creeper tread；

Fig. 6 is the structural schematic diagram two of the utility model embodiment creeper tread；

Fig. 7 is the structure enlargement diagram of existing guide；

Fig. 8 is the structure enlargement diagram of the utility model embodiment guide；

Fig. 9 is the structure enlargement diagram of existing left Chain Link；

Figure 10 is the structure enlargement diagram of the left Chain Link of the utility model embodiment；

Figure 11 is existing three teeth creeper tread stress envelope；

Figure 12 is existing three teeth creeper tread Displacements Distribution figure；

Figure 13 is the utility model embodiment creeper tread stress envelope；

Figure 14 is the utility model embodiment creeper tread Displacements Distribution figure；

Figure 15 is the utility model embodiment guide and Chain Link, pin shaft assembling structure schematic diagram；

Figure 16 is the utility model embodiment guide stress envelope；

Figure 17 is that the left Chain Link dangerouse cross-section of the utility model embodiment changes structural schematic diagram；

In figure: 1, left Chain Link 2, right Chain Link 3, guide 4, pin shaft 5, sealing ring 6, creeper tread B2, Grouser C2, mud leakage hole 7, nut 8, bolt Y2, reinforcing rib C, extended segment D, wear-resistant section.

Specific embodiment

The utility model is described further with reference to the accompanying drawing:

Below by way of specific embodiment, the utility model is described in further detail, but not to limit the utility model, all Within spirit of that invention and principle, any modification, equivalent replacement, improvement and so on should be included in the utility model Within protection scope.

As shown in Fig. 4, Fig. 5, Fig. 6, Fig. 8 and Figure 10, the Novel track plate, the creeper tread 6 includes creeper tread ontology, Setting offers a mud leakage hole C2 between the creeper tread ontology between two grouser B2 there are two grouser B2 on creeper tread ontology With crawler belt mounting hole, the mud leakage hole C2 is circular hole, in the case where not increasing cost, two tooth creeper tread maximum stresses and maximum Deflection becomes smaller, and intensity is higher, and big mud leakage hole improves 3 times compared to long strip type mud leakage hole effective area, be easier to allow stone from Middle leakage reduces the inordinate wear of creeper tread, improves the service life of creeper tread.

In the present embodiment, the high settings such as described two grouser B2, are highly 45 ~ 50mm, and the high A2 of tooth is higher than A1, take off ground ability It is stronger.

The new type mining heavy crawler assembly, including left Chain Link 1, right Chain Link 2, guide 3, pin shaft 4, sealing ring 5, Creeper tread 6, nut 7 and bolt 8 further include above-mentioned creeper tread 6；The middle part of the guide 3 be wear-resistant section D, the two of wear-resistant section D End has been wholely set extended segment C, and the outer diameter of wear-resistant section D is greater than the outer diameter of extended segment C, can significantly improve the abrasion body outside guide Product extends wear-out life；3 center of guide offers the sets of holes that bus is circular arc line；The sets of holes bus is by EFG sections of circular arcs Composition, EFG sections of arc radius about 10000-20000mm, after Chain Link sets of holes are pressed at guide 3, since the two is matched for interference It closes, causes to be compressed at the C of extended segment, EFG sections of circular arcs become straight line, and the contact site of pin shaft 4 and guide 3 is not in E, G two The case where holding diameter to be less than middle F prevents shearing and stress from concentrating；The side of the left Chain Link 1 has set end reinforcing rib The upper end of Y2, set end reinforcing rib Y2 are improved to center line MN, and dangerouse cross-section area increases, and are improved bearing capacity, can be effectively prevent There is cracking phenomena.

The working principle of this specific embodiment:: three tooth plates, maximum stress and maximum distortion are replaced using bidentate creeper tread Amount becomes smaller, and intensity is higher, while higher than three tooth plate grousers, and ground ability is taken off in raising, and lower than single-tooth track plate tooth, operation is opposite Steadily, creeper tread uses the big mud leakage hole of monomer, is easier to that stone and soil is discharged, adapts to the severe duties such as large-scale mine；Guide Inner hole is designed using circular hole, and orifice deformation reduces after making up press fitting, prevents from shearing；Chain Link dangerouse cross-section area increases 20%- 30%, bearing capacity is improved, while increasing designed arc-shaped appearance, reduces stress and concentrate, prevent chip off-falling.

One, in the case where not increasing cost, two tooth creeper tread maximum stresses and maximum deformation quantity become smaller, and intensity is more High explanation:

1, finite element analysis process

Step A, threedimensional model: Chain Link, pin shaft, guide etc. are added in model, as close possible to actual conditions.

Step B, contact pair: in the analysis process, according to the actual situation, addition is bound about between Chain Link and creeper tread Beam.

Step C, Y-direction constraint boundary condition: is added on Chain Link tyre tread.

Step D, load: creeper tread extreme operating condition list carries host machine weight half 25T.

Step E, result: maximum stress appears on creeper tread plate tooth.

Step F, result convergence uses convergence tool, stress variation only 0.3197%, finite element analysis after refinement As a result accurate, stable.

2, finite element analysis, Comparative result situation such as following table are carried out respectively according to above-mentioned setting to three tooth plates, two tooth plates Conclusion:

In the case where not increasing cost, two tooth creeper tread maximum stresses and maximum deformation quantity become smaller, and intensity is higher.

Two, arc is designed as to guide, reduces the explanation of shearing and stress concentration:

As shown in figs, after Chain Link sets of holes are pressed at guide 3, since the two is interference fit, amount really up to the mark exists 0.3mm or so, guide inner hole is shunk after assembly, is calculated by FEM Simulation and actual tests, is chosen bore circular arc and is set Radius is counted in 10000-20000mm or so, interference fit bring inner hole can be effectively offset and shrink, avoid guide inner hole and pin shaft Shearing.

Three, reduce to Chain Link dangerouse cross-section, the increased explanation of intensity: sectional area (830 → 916) increases 10.5%, material Yield strength is 784MPa, and bearing capacity can be improved 6.7 tons.

Relational language is explained:

Mining heavy crawler assembly: see Fig. 1 and 2, mining heavy crawler assembly is by left Chain Link 1, right Chain Link 2, guide 3, pin shaft 4, sealing ring 5, creeper tread 6, nut 7, bolt 8 form, and are driven around thrust wheel, guide wheel and support by sprocket wheel The flexible chain link of belt wheel plays walking and supporting role, is the main component for walking mechanism of caterpillar engineering machinery.It is carried out using two tooth plates Band plate, arc-shaped inner hole guide and reinforced Chain Link, effectively meet mine working condition requirement.

Creeper tread: being one of track rail assembly important part, see Figures 5 and 6, and creeper tread uses three tooth creeper tread forms at present, Grouser number B1 quantity is 3, and tooth a height of A1, mud leakage hole C1 use long strip type structure.

Guide: being one of track rail assembly important part, sees that Fig. 7, current guide outer circle bus A and inner hole bus B are straight line.

Chain Link: being one of track rail assembly important part, see Fig. 9, and Chain Link set end reinforcing rib structure is Y1 at present, existing In the case of at PQ cracking situation take place frequently.

The advantages of basic principles and main features and the utility model of the utility model have been shown and described above.This The technical staff of industry is retouched in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments That states merely illustrates the principles of the invention, and on the premise of not departing from the spirit and scope of the utility model, the utility model can also There are various changes and modifications, these various changes and improvements fall within the scope of the claimed invention.The utility model is wanted Protection scope is asked to be defined by the appending claims and its equivalent thereof.

Claims (7)

1. a kind of Novel track plate, it is characterised in that: the creeper tread (6) includes creeper tread ontology, is arranged on creeper tread ontology There are two grouser (B2), a mud leakage hole (C2) and crawler belt installation are offered between the creeper tread ontology between two grousers (B2) Hole, the mud leakage hole (C2) are circular hole.

2. Novel track plate according to claim 1, it is characterised in that: the high settings such as two grousers (B2), highly for 45 ~ 50mm。

3. a kind of new type mining heavy crawler assembly, including it is left Chain Link (1), right Chain Link (2), guide (3), pin shaft (4), close Seal (5), creeper tread (6), nut (7) and bolt (8), it is characterised in that: further include as claim 1-2 is described in any item Creeper tread (6).

4. new type mining heavy crawler assembly according to claim 3, it is characterised in that: the middle part of the guide (3) is Wear-resistant section (D), the both ends of wear-resistant section (D) have been wholely set extended segment (C), and the outer diameter of wear-resistant section (D) is outer greater than extended segment (C) Diameter.

5. new type mining heavy crawler assembly according to claim 3 or 4, it is characterised in that: open at guide (3) center It is the sets of holes of circular arc line equipped with bus.

6. new type mining heavy crawler assembly according to claim 5, it is characterised in that: the sets of holes bus is by EFG sections Circular arc composition, EFG sections of arc radius about 10000-20000mm.

7. new type mining heavy crawler assembly according to claim 6, it is characterised in that: the one of the left Chain Link (1) Side has set end reinforcing rib (Y2), and the upper end of set end reinforcing rib (Y2) is improved to center line MN.