A cast track shoe for a super large excavator of a mining machine

Abstract

The utility model discloses a cast track shoe for super large excavator of mine machinery relates to track shoe technical field, including track shoe main part, its characterized in that, both ends of track shoe main part are provided with chain track connecting boss, and two chain track connecting boss are the protruding block of symmetrical distribution, and the top center part of track shoe main part is provided with center reinforcing block, and the both ends of track shoe main part are all through the opening of two positioning pin holes, and positioning pin hole is with chain track connecting boss coaxial, and chain track connecting boss is provided with lateral limit boss, the inside of chain track connecting boss is provided with chain track adaptation recess, and chain track adaptation recess is with chain track connecting boss and is connected, this device strengthens the structural strength of track shoe main part center area through center reinforcing block, when excavator is in the mine topography operation, the vertical load, impact load of center area bearing is maximum, and the reinforcing block is through partial thickening and strengthens to effectively resist deformation, cracking, and guarantees overall bearing capacity.

Description

Technical Field

[0001] This utility model relates to the field of track plate technology, specifically a cast track plate for a super-large excavator used in mining machinery. Background Technology

[0002] Tracked locomotives are widely used in engineering machinery, mostly operating in harsh environments such as mining and construction excavation. Therefore, there are strict requirements for the components that make them up. Tracks are an indispensable part of tracked locomotives such as rotary drilling rigs and excavators, and the most important component of tracks is the track pads.

[0003] Ultra-large excavators have extremely high self-weight and operating loads. Therefore, large-tonnage excavators require very high load-bearing capacity for individual track shoes, and the ground contact area of ​​the track shoes must be large. However, the structural strength and material properties of conventional track shoes are not suitable, making them prone to breakage and deformation, leading to frequent equipment failures. Therefore, those skilled in the art have provided a cast track shoe for ultra-large mining machinery excavators to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this utility model is to provide a cast track plate for a super-large excavator in mining machinery, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A cast track plate for a super-large excavator in mining machinery includes a track plate body. The track plate body is characterized by having track connecting bosses at both ends, with the two track connecting bosses being symmetrically distributed protrusions. A central reinforcing block is provided at the top center of the track plate body. Two positioning pin holes are provided through both ends of the track plate body, and the positioning pin holes are coaxial with the track connecting bosses. Lateral limiting protrusions are provided on the track connecting bosses.

[0006] As a further embodiment of this utility model: a track adapter groove is provided on the inner side of the track connecting boss, and the track adapter groove is engaged with the track connecting boss.

[0007] As a further improvement of this utility model, the material used for the main body of the track plate is SCSiMn2H.

[0008] As a further improvement of this utility model, the hardness of the track plate body is HB255~336.

[0009] Compared with the prior art, the beneficial effects of this utility model are: In this device, the chain links, through their engagement with the track rail connecting bosses at both ends of the track plate, transmit power to the entire track plate body. The track rail adapter grooves on the inner side of the track rail connecting bosses form a tight interlock with the chain links, preventing relative slippage between the chain links and the bosses. This ensures that power can be stably transmitted from the chain links to the track plates. Multiple track plates are connected together by track pins passing through locating pin holes to form a complete track chain. Because the locating pin holes and the track rail connecting bosses are coaxial, the connected track plates maintain good consistency during movement and will not deviate from their designated path. This device strengthens the structural strength of the central area of ​​the track plate body by using a central reinforcing block. When the excavator is operating in mining terrain, the central area bears the greatest vertical load and impact load. The reinforcing block effectively resists deformation and cracking by locally thickening and strengthening, ensuring the overall load-bearing capacity. Attached Figure Description

[0010] Figure 1 This is a top view of a cast track plate used in a super-large excavator for mining machinery.

[0011] Figure 2 This is a top sectional view of a cast track plate used in a super-large mining excavator.

[0012] Figure 3 This is a side view of a cast track plate used in a super-large excavator for mining machinery.

[0013] Figure 4 This is a front view of a cast track plate for a super-large excavator used in mining machinery.

[0014] Figure 5 This is a cross-sectional view of BB in a cast track plate for a super-large excavator used in mining machinery.

[0015] In the diagram: 1. Track plate body; 101. Track connecting boss; 102. Center reinforcing block; 103. Track adapter groove; 104. Positioning pin hole; 105. Lateral limiting protrusion. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Reference Figure 1-5A cast track plate for a super-large excavator in mining machinery includes a track plate body 1. The track plate body 1 is characterized in that both ends of the track plate body 1 are provided with track connecting bosses 101, and the two track connecting bosses 101 are symmetrically distributed protrusions. The track connecting bosses 101 are symmetrically distributed at both ends of the body and are precisely matched with the excavator track links. During operation, the driving force of the excavator's traveling mechanism is transmitted to the bosses through the links, then distributed from the bosses to the track plate body, and finally transmitted to the ground to support the movement of the equipment and the operating load.

[0018] A central reinforcing block 102 is provided at the top center of the track plate body 1 to strengthen the structural strength of the central area of ​​the track plate body 1. When the excavator is operating in the mining terrain, the central area bears the largest vertical load and impact load. The reinforcing block effectively resists deformation and cracking by locally thickening and strengthening, ensuring the overall load-bearing capacity.

[0019] Two positioning pin holes 104 are provided at both ends of the track plate body 1. The positioning pin holes 104 are coaxial with the track connecting boss 101. Multiple track plates are connected in series to form a complete track chain by passing track pins through the pin holes. The track connecting boss 101 is provided with a lateral limiting protrusion 105. The inner side of the track connecting boss 101 is provided with a track adapter groove 103, and the track adapter groove 103 is engaged with the track connecting boss 101. The track connecting boss 101 and the track adapter groove 103 form a concave-convex interlocking structure, which increases the contact area and connection stability between the chain link and the boss. When operating in complex mining terrain, it prevents the chain link from sliding or falling off relative to the boss, ensuring the continuity of transmission. When the track is subjected to lateral force, such as when the excavator makes a sharp turn or crosses a pothole, the protrusion is embedded in the limiting groove of the chain link to limit the lateral displacement of the track plate, avoid the risk of derailment, and ensure the operational stability of the track system under harsh working conditions.

[0020] The track plate body 1 is made of SCSiMn2H material, which has high strength and high toughness. In the high-frequency impact and friction environment of mining, it can resist the deformation of the track plate and alleviate the risk of impact cracking. The hardness of the track plate body 1 is HB255~336, which ensures the long service life and reliability of the track plate under harsh working conditions.

[0021] In operation, the excavator's traveling power is first transmitted to the track links. The links, through their engagement with the track rail connecting bosses 101 at both ends of the track plates, transmit power to the entire track plate body 1. At this time, the track rail adapter grooves 103 inside the track rail connecting bosses 101 form a tight interlock with the links, preventing relative slippage between the links and the bosses and ensuring stable power transmission from the links to the track plates. Multiple track plates are connected in series by track pins passing through positioning pin holes 104, forming a complete track chain. Because the positioning pin holes 104 and the track rail connecting bosses 101 are coaxial, the connected track plates maintain good consistency during movement and do not deviate from their designated path. When the excavator operates in mining terrain, such as digging ore, climbing slopes, or moving on uneven ground, the track plates need to withstand enormous vertical and impact loads. In this case, the center of the top center of the track plate body 1... The reinforcing block 102 plays a crucial role by dispersing the force borne by the central area through its own structural reinforcement, effectively resisting the deformation and cracking of the track plate, and ensuring that the track plate as a whole can stably bear the load. When the excavator makes sharp turns or crosses potholes, the track will be subjected to lateral forces. At this time, the lateral limiting protrusion 105 on the track connecting boss 101 will be embedded in the limiting groove of the chain link, limiting the excessive movement of the track plate to both sides, preventing the track from falling off the drive wheel or idler wheel, and ensuring that the track system can operate continuously and stably under complex working conditions. At the same time, since the track plate body 1 is made of SCSiMn2H material with a hardness of HB255~336, the high strength and high toughness of this material enable the track plate to resist deformation and reduce the risk of cracking due to impact when facing high-frequency impact and friction in the mining environment, thereby ensuring that the track plate can work reliably for a long time under harsh mining conditions.

[0022] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0023] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A cast track plate for a super-large excavator used in mining machinery, comprising a track plate body (1), characterized in that, Both ends of the track plate body (1) are provided with track connecting bosses (101), and the two track connecting bosses (101) are symmetrically distributed protrusions. A central reinforcing block (102) is provided at the top center of the track plate body (1). Two positioning pin holes (104) are opened through both ends of the track plate body (1), and the positioning pin holes (104) are coaxial with the track connecting bosses (101). Lateral limiting protrusions (105) are provided on the track connecting bosses (101).

2. The cast track plate for a super-large excavator in mining machinery according to claim 1, characterized in that, The inner side of the track connecting boss (101) is provided with a track adapter groove (103), and the track adapter groove (103) is engaged with the track connecting boss (101).

3. The cast track plate for a super-large excavator in mining machinery according to claim 1, characterized in that, The material used for the main body of the track plate (1) is SCSiMn2H.

4. The cast track plate for a super-large excavator in mining machinery according to claim 1, characterized in that, The hardness of the track plate body (1) is HB255~336.

Images