High-efficiency caterpillar scraper for coal mine

Abstract

The utility model relates to the technical field of coal mine transportation equipment, and the utility model provides a high -efficient caterpillar scraper truck for coal mine, including transport car, caterpillar mechanism and auxiliary mechanism, and the caterpillar mechanism's caterpillar band outer wall fixedly connected with the tooth groove and connecting block, and the driving gear on the transport car is driven with the tooth groove cooperation, and the auxiliary mechanism fixed on the transport car has the support frame, and the main roller and the auxiliary roller are rotatably installed on the support frame, and the outer peripheral surface of main roller and auxiliary roller and the surface of connecting block are rolling contact to provide support. The utility model has the advantages of accurate and reliable driving, stable support, effective reduction of friction loss and high reliability by separating the structure of driving and support and rolling contact, solving the problem of easy slippage of the existing technology caterpillar drive, complex support structure and fast wear.

Description

Technical Field

[0001] This utility model relates to the field of coal mine transportation equipment technology, and in particular to a high-efficiency tracked loader for coal mines. Background Technology

[0002] Tracked loaders are key equipment in coal mining and are widely used for loading and transporting coal and gangue underground. The performance of the running gear directly determines the overall operating efficiency and reliability of the vehicle. Existing tracked running gear typically includes a drive unit and a support unit. The drive unit provides traction by engaging the drive wheels with the tracks, while the support unit supports the weight of the vehicle body and guides the movement of the tracks through multiple support rollers. In the harsh working conditions of underground coal mines, which are filled with coal dust, water vapor, and uneven road surfaces, extremely high requirements are placed on the driving efficiency and structural stability of the tracked running gear.

[0003] However, some existing tracked loaders have design shortcomings. For example, the way the drive wheels and tracks are matched may not be direct or precise enough, which can lead to slippage under heavy load or wet conditions, resulting in power loss and reduced driving efficiency. At the same time, the track support structure may be relatively dispersed or complex, and the roller layout may not be reasonable. This not only increases rolling resistance during movement but may also cause uneven stress on the tracks, accelerate component wear, and reduce the reliability and service life of the entire walking mechanism, making it difficult to meet the needs of coal mine operations for high efficiency and long-term stable operation.

[0004] Therefore, this utility model proposes a high-efficiency tracked loader for coal mines to overcome the shortcomings of the prior art. Utility Model Content

[0005] In view of the problems existing in the prior art, such as the low reliability of the drive device and track cooperation in a high-efficiency tracked shovel for coal mines, easy slippage leading to power loss, and complex track support structure causing high walking resistance, rapid wear and low reliability, this utility model aims to provide a high-efficiency tracked shovel for coal mines with an improved structure that can effectively solve the above problems.

[0006] This utility model provides a high-efficiency tracked shovel for coal mines, including: a transport vehicle, a bucket, a track mechanism, and an auxiliary mechanism; the track mechanism includes a rotating shaft, a drive gear, a track plate, a connecting block, and a tooth groove; the auxiliary mechanism includes a support frame, a main roller, a secondary roller, and a connecting block.

[0007] The drive gear is fixed to a rotating shaft driven by the transport vehicle, and the tooth groove is fixedly connected to the outer wall of the track plate; the support frame is fixedly connected to the transport vehicle through the connecting block, and the main roller and the auxiliary roller are rotatably mounted on the support frame; the connecting block is fixedly connected to the outer wall of the track plate.

[0008] Furthermore, the drive gear engages with the tooth groove to drive the track mechanism. Meanwhile, the surface of the connecting block one serves as a rolling track, and the outer peripheral surfaces of the main roller and the auxiliary roller contact and roll to support the connecting block one. This is achieved through a combination of driving and support that are separated yet in rolling contact.

[0009] Preferably, the track mechanism further includes a rotating plate and a rotating rod. The two sides of the connecting block one are rotatably connected to the rotating plate and the connecting block one through the rotating rod. Multiple track plates are connected in series through multiple sets of the rotating rod, the rotating plate and the connecting block one.

[0010] Preferably, a protruding plate is fixedly connected to the grounding side of the track plate.

[0011] Preferably, the auxiliary mechanism further includes a second rotating shaft, and the middle part of the main roller is rotatably connected to the support frame through the second rotating shaft.

[0012] Preferably, the auxiliary mechanism further includes multiple rotating shafts, and the outer wall of the support frame is fixedly connected to the multiple rotating shafts, with the auxiliary roller rotatably mounted on the rotating shafts.

[0013] Preferably, the auxiliary mechanism further includes a connecting block three, and the rotating shaft three is fixedly connected to the outer wall of the support frame through the connecting block three.

[0014] Preferably, the main rollers are located at both ends of the support frame along its length.

[0015] Preferably, a plurality of the auxiliary rollers are provided, and the array of auxiliary rollers is distributed on the support frame and located between the main rollers.

[0016] This utility model has the following beneficial effects: 1. This utility model solves the problems of easy slippage, complex support structure, high running resistance or rapid wear in the prior art by setting a drive gear to cooperate with the tooth groove fixed on the outer wall of the track plate, and setting a main roller and a secondary roller fixed on the support frame of the transport vehicle, so that the main roller and the secondary roller roll and support on the connecting block of the track plate. This achieves the technical effects of precise and reliable driving, stable support and reduced friction loss.

[0017] 2. This utility model solves the problems of existing track support structures being scattered, easily damaged, and unsuitable for harsh working conditions in coal mines by rotatably mounting both the main roller and auxiliary roller on a support frame fixed to the transport vehicle, and by having the roller assembly roll into contact with the connecting blocks fixed to the track plate. This achieves the technical effect of a compact auxiliary support structure with stable load-bearing capacity, high reliability, and easy maintenance. Attached Figure Description To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0018] Figure 1 This is a front perspective view of a high-efficiency tracked loader for coal mines proposed in this utility model; Figure 2 This is a partial structural diagram of a high-efficiency tracked shovel for coal mines proposed in this utility model. Figure 3 This is a partial structural exploded view of the track plate of a high-efficiency tracked shovel for coal mines proposed in this utility model; Figure 4 This is a partial structural breakdown diagram of a support frame for a high-efficiency tracked loader for coal mines proposed in this utility model.

[0019] In the diagram: 1. Transport vehicle; 2. Track mechanism; 201. Rotating shaft one; 202. Drive gear; 203. Track plate; 204. Connecting block one; 205. Tooth groove; 206. Rotating plate; 207. Rotating rod; 208. Protruding plate; 3. Auxiliary mechanism; 301. Main roller; 302. Rotating shaft two; 303. Connecting block two; 304. Rotating shaft three; 305. Secondary roller; 306. Connecting block three; 307. Support frame; 4. Bucket. Detailed Implementation The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0020] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0021] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0022] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0023] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0024] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] Please refer to Figure 1As shown, a high-efficiency tracked shovel for coal mining includes a transport vehicle 1 and a bucket 4 located at the front end of the transport vehicle 1. Track mechanisms 2 are provided on both sides of the transport vehicle 1. An auxiliary mechanism 3 for supporting the track mechanisms 2 is also fixedly connected to the transport vehicle 1. The transport vehicle 1 serves as the main body of the device, connecting other components. The track mechanisms 2 drive the high-efficiency tracked shovel for coal mining to move. The track mechanism 2 includes a rotating shaft 201, a drive gear 202, track plates 203, a connecting block 204, and toothed grooves 205. The rotating shaft 201 is driven to rotate by the transport vehicle 1. The drive gear 202 is fixed to the rotating shaft 201, and the toothed grooves 205... Fixedly connected to the outer wall of the track plate 203, the drive gear 202 engages with the tooth groove 205. The auxiliary mechanism 3 is used to assist the movement of the track mechanism 2. The auxiliary mechanism 3 includes a support frame 307, a main roller 301, an auxiliary roller 305, and a connecting block 203. The support frame 307 is fixedly connected to the transport vehicle 1 through the connecting block 203. The main roller 301 and the auxiliary roller 305 are rotatably mounted on the support frame 307. The connecting block 204 is fixedly connected to the outer wall of the track plate 203. The surface of the connecting block 204 serves as a rolling track. The outer peripheral surfaces of the main roller 301 and the auxiliary roller 305 contact the connecting block 204 and provide rolling support.

[0026] Please refer to Figure 3 The track mechanism 2 also includes a rotating plate 206 and a rotating rod 207. A connecting block 204 is fixedly connected to the outer wall of the track plate 203. The two sides of the connecting block 204 are rotatably connected to the rotating plate 206 and the connecting block 207 through the rotating rod 207. Multiple track plates 203 are connected in series through multiple sets of rotating rods 207, rotating plates 206 and connecting blocks 204 to form a complete, cyclically moving track chain. A protruding plate 208 is fixedly connected to the ground side of the track plate 203. Please refer to Figure 4 The auxiliary mechanism 3 also includes a second rotating shaft 302, multiple third rotating shafts 304, and a third connecting block 306. The middle part of the main roller 301 is rotatably connected to the support frame 307 through the second rotating shaft 302. The main roller 301 is located at both ends of the support frame 307 in the length direction. Multiple auxiliary rollers 305 are provided. The multiple auxiliary rollers 305 are rotatably mounted on the corresponding third rotating shafts 304. The multiple third rotating shafts 304 are fixedly connected to the outer wall of the support frame 307 through the third connecting block 306. The multiple auxiliary rollers 305 are arrayed on the support frame 307 and located between the main rollers 301. In the assembled state, the surface of the first connecting block 204 on the track mechanism 2 serves as a rolling track, correspondingly rolling and contacting the outer peripheral surfaces of the main roller 301 and the auxiliary rollers 305 on the auxiliary mechanism 3, and providing rolling support.

[0027] As a preferred embodiment, please refer to Figure 2-3To ensure the flexible connection of the track plates 203, the track mechanism 2 also includes a rotating plate 206 and a rotating rod 207. The connecting block 204 is fixedly connected to the outer wall of the track plate 203. The two sides of the connecting block 204 are rotatably connected to the rotating plate 206 and the connecting block 204 through the rotating rod 207. Multiple track plates 203 are connected in series through multiple sets of rotating rods 207, rotating plates 206 and connecting blocks 204 to form a complete track chain that can circulate. As a preferred embodiment, please refer to Figure 3 In order to increase the friction with the ground, a protruding plate 208 is fixedly connected to the grounding side of the track plate 203. The protruding plate 208 is preferably a strip or block structure to ensure that the track mechanism 2 has good grip performance in the coal mine environment. As a preferred embodiment, please refer to Figure 4 In order to achieve stable rotation of the main roller 301, the auxiliary mechanism 3 also includes a second rotating shaft 302. The middle part of the main roller 301 is rotatably connected to the support frame 307 through the second rotating shaft 302, and the second rotating shaft 302 provides rotational support for the main roller 301. As a preferred embodiment, please refer to Figure 4 To clarify the layout of the main roller 301, the main roller 301 is located at both ends of the support frame 307 along its length. Preferably, the main roller 301 is configured as a guide wheel or tension wheel to guide the movement path of the track mechanism 2. As a preferred embodiment, please refer to Figure 4 In order to realize the installation of the auxiliary roller 305, the auxiliary mechanism 3 also includes multiple rotating shafts 304, and multiple auxiliary rollers 305 are provided. The multiple auxiliary rollers 305 are rotatably installed on the corresponding rotating shafts 304, and the rotating shafts 304 are fixedly connected to the outer wall of the support frame 307. As a preferred embodiment, please refer to Figure 4 In order to further define the mounting structure of the auxiliary roller 305, the auxiliary mechanism 3 also includes a connecting block 306. Multiple rotating shafts 304 are fixedly connected to the outer wall of the support frame 307 through the connecting block 306. The connecting block 306 provides a stable mounting base for the rotating shafts 304. As a preferred embodiment, please refer to Figure 4 In order to optimize the support layout of the auxiliary rollers 305, multiple auxiliary rollers 305 are provided. The multiple auxiliary rollers 305 are arrayed on the support frame 307 and located between the main rollers 301. This array layout helps to evenly transfer the weight of the transport vehicle 1 to the track mechanism 2.

[0028] Working principle: When the transport vehicle 1 starts, its power system outputs power, driving the rotating shaft 201 to rotate. The rotating shaft 201 acts as the drive shaft. Since the drive gear 202 is fixed to the rotating shaft 201 and rotates synchronously with it, the teeth of the drive gear 202 precisely mesh with the tooth groove 205. The tooth groove 205 is fixedly connected to the outer wall of the track plate 203. Through stable meshing with the tooth groove 205, the drive gear 202 converts the rotational motion into a linear traction force on the track mechanism 2. Under the traction of the drive gear 202, the track mechanism 2 begins to circulate. The track plates 203 located below the track mechanism 2 sequentially contact the ground. The protruding plate 208 on the ground side of the plate 203 will embed into the coal mine ground or generate strong friction with the ground, thereby driving the transport vehicle 1 and the bucket 4 installed at the front of the transport vehicle 1 to move forward, backward or turn. Multiple track plate 203 units are connected to each other by connecting block 1 204, rotating plate 206 and rotating rod 207. Specifically, the two sides of the connecting block 1 204 are rotatably connected to the rotating plate 206 and the connecting block 1 204 through the rotating rod 207. Multiple track plates 203 are connected in series by multiple sets of rotating rod 207, rotating plate 206 and connecting block 1 204, so that the entire track mechanism 2 forms a flexible chain that can rotate flexibly around the auxiliary mechanism 3 and the drive gear 202. The auxiliary mechanism 3 serves as a load-bearing and guiding element. The support frame 307 of the auxiliary mechanism 3 is fixedly connected to the vehicle body of the transport vehicle 1 via connecting block 303. The support frame 307 acts as a fixed bracket, with main rollers 301 and auxiliary rollers 305 rotatably mounted on it. The middle of the main roller 301 is rotatably connected to the support frame 307 via rotating shaft 302. The main rollers 301 are located at both ends of the support frame 307 along its length, guiding the track mechanism 2 to turn at both ends. Simultaneously, multiple auxiliary rollers 305 are provided, rotatably mounted on corresponding rotating shafts 304. Rotating shafts 304 are fixedly connected to the outer wall of the support frame 307 via connecting block 306. The multiple auxiliary rollers 305 are arrayed on the support frame 307, located between the main rollers 301, to bear the weight of the upper chain of the track mechanism 2. When the track mechanism 2 moves... The connecting block 204, fixed to the outer wall of the track plate 203, moves to the top of the transport vehicle 1 along with the track chain. At this time, the surface of the connecting block 204 serves as a rolling track. The connecting block 204 will sequentially contact the outer peripheral surfaces of the main roller 301 and the auxiliary roller 305 fixed on the support frame 307. The connecting block 204 rolls across the outer peripheral surfaces of the main roller 301 and the auxiliary roller 305. The main roller 301 and the auxiliary roller 305 support the connecting block 204 by rotating and rolling, thus smoothly transferring the weight of the transport vehicle 1 to the track mechanism 2. At the same time, it prevents the upper chain of the track mechanism 2 from sagging due to gravity. The driving gear 202 is driven by meshing with the tooth groove 205, and the main roller 301 and the auxiliary roller 305 on the auxiliary mechanism 3 provide rolling support for the connecting block 204 on the track mechanism 2, ensuring the efficient and stable operation of the loader in the coal mine environment.

[0029] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A high-efficiency tracked loader for coal mines, comprising: The transport vehicle (1), the bucket (4) located at the front end of the transport vehicle (1), the track mechanism (2) located on both sides of the transport vehicle (1), and the auxiliary mechanism (3) for supporting the track mechanism (2). Its features are, The track mechanism (2) includes a rotating shaft (201), a drive gear (202), a track plate (203), a connecting block (204), and a tooth groove (205). The rotating shaft (201) is driven to rotate by the transport vehicle (1). The drive gear (202) is fixed to the rotating shaft (201). The tooth groove (205) is fixedly connected to the outer wall of the track plate (203). The drive gear (202) cooperates with the tooth groove (205). The auxiliary mechanism (3) includes a support frame (307), a main roller (301), a secondary roller (305), and a connecting block (303). The support frame (307) is fixedly connected to the transport vehicle (1) through the connecting block (303). The main roller (301) and the secondary roller (305) are rotatably mounted on the support frame (307). The connecting block 1 (204) is fixedly connected to the outer wall of the track plate (203). The surface of the connecting block 1 (204) serves as a rolling track. The outer peripheral surfaces of the main roller (301) and the auxiliary roller (305) contact the connecting block 1 (204) and provide rolling support.

2. The high-efficiency tracked loader for coal mines according to claim 1, characterized in that, The track mechanism (2) further includes a rotating plate (206) and a rotating rod (207). The two sides of the connecting block (204) are rotatably connected to the rotating plate (206) and the connecting block (204) through the rotating rod (207). Multiple track plates (203) are connected in series through multiple sets of the rotating rod (207), the rotating plate (206) and the connecting block (204).

3. The high-efficiency tracked loader for coal mines according to claim 1, characterized in that, A protruding plate (208) is fixedly connected to the grounding side of the track plate (203).

4. The high-efficiency tracked loader for coal mines according to claim 1, characterized in that, The auxiliary mechanism (3) also includes a second rotating shaft (302), and the middle part of the main roller (301) is rotatably connected to the support frame (307) through the second rotating shaft (302).

5. The high-efficiency tracked loader for coal mines according to claim 1, characterized in that, The auxiliary mechanism (3) also includes multiple rotating shafts (304), and the outer wall of the support frame (307) is fixedly connected to multiple rotating shafts (304), and the auxiliary roller (305) is rotatably mounted on the rotating shafts (304).

6. A high-efficiency tracked loader for coal mines according to claim 5, characterized in that, The auxiliary mechanism (3) also includes a connecting block three (306), and the rotating shaft three (304) is fixedly connected to the outer wall of the support frame (307) through the connecting block three (306).

7. A high-efficiency tracked loader for coal mines according to claim 1, characterized in that, The main rollers (301) are located at both ends of the support frame (307) along its length.

8. The high-efficiency tracked loader for coal mines according to claim 1, characterized in that, It is also provided with multiple auxiliary rollers (305).

9. A high-efficiency tracked loader for coal mines according to claim 1, characterized in that, The sub-rollers (305) are arranged in an array on the support frame (307).

10. A high-efficiency tracked loader for coal mines according to claim 1, characterized in that, The auxiliary roller (305) is located between the main rollers (301).

Images