Engineering machinery track shoe connecting structure

The combination of locking and self-locking structures solves the problem of loose track shoe connections, achieving stable connections under heavy loads and vibrations, simplifying installation and disassembly, and improving the safety and efficiency of construction machinery.

CN224256792UActive Publication Date: 2026-05-19JIANGSU LIHUI MASCH TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU LIHUI MASCH TECH CO LTD
Filing Date
2025-08-11
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Traditional track shoe connections are prone to loosening due to vibration, leading to connection failure, posing a safety hazard, and are cumbersome to install and disassemble.

Method used

The design employs a combination of locking and self-locking structures, including multiple engagements of locking blocks, locking blocks, locking slots, and locking lugs. Combined with the sliding self-locking of the self-locking block and the locking plate connecting block, a tight connection of the bracket is achieved, preventing loosening.

Benefits of technology

It maintains connection stability under harsh working conditions, simplifies installation and disassembly operations, improves work efficiency, reduces maintenance time, and is suitable for field engineering operations.

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Abstract

The utility model relates to the technical field of engineering machinery accessories, in particular to an engineering machinery track shoe connecting structure. According to the technical scheme, the device comprises two supports and a lock catch structure arranged on one sides of the two supports, the lock catch structure comprises connecting supports fixed to one sides of the two supports, clamping grooves are formed in the sides, away from the supports, of the two connecting supports, and lock block penetrating grooves are formed in the sides, located on the clamping grooves, of the inner walls of the two connecting supports; and locking lugs are fixedly connected to one sides of the inner walls of the two locking block penetrating grooves correspondingly, and self-locking structures are arranged at the upper ends and the lower ends of the two supports correspondingly. The track shoe connecting structure of the engineering machinery has the advantages of being capable of keeping connecting stability and guaranteeing safe operation of equipment under severe working conditions such as heavy load and vibration, simple and rapid to operate, capable of greatly shortening installation and maintenance time and capable of improving working efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of engineering machinery parts technology, and in particular to a connection structure for engineering machinery track plates. Background Technology

[0002] In road construction, milling machines and pavers are key equipment used to evenly lay various materials (such as crushed stone, asphalt mixture, etc.) on the subgrade or pavement base, and to perform preliminary compaction and leveling. They are also specialized equipment for the maintenance of asphalt concrete pavements. In the use of construction machinery, track plates are the core components of the track system. The reliability of their connection structure directly affects the driving performance and operational safety of the equipment. Traditional track plate connections mostly use bolt connections, which require tools for installation and disassembly, making the operation cumbersome. Moreover, during long-term use, the bolts are prone to loosening due to vibration, leading to track plate connection failure and posing a safety hazard. Therefore, this application proposes a track plate connection structure for construction machinery. Utility Model Content

[0003] The purpose of this utility model is to address the problem in the background technology that track plate connections are prone to loosening due to vibration, leading to failure and potential safety hazards, and to propose a track plate connection structure for engineering machinery.

[0004] The technical solution of this utility model is as follows: a track plate connection structure for engineering machinery, including two brackets and a locking structure disposed on one side of the two brackets. The locking structure includes a connecting bracket fixed to one side of the two brackets. Each of the two connecting brackets has a slot on the side away from the bracket, and a locking block through groove is formed on the inner wall of the two connecting brackets on the side of the slot. A locking lug is fixedly connected to one side of the inner wall of each of the two locking block through grooves.

[0005] Both of the brackets are equipped with self-locking structures at their upper and lower ends.

[0006] Optionally, the two lock block through slots correspond to each other, and a lock block passes through the center of the two lock block through slots, and the two lock lugs are located on one side of the outer wall of the lock block.

[0007] Optionally, both sides of the outer wall of the locking block are fixedly connected to a locking block, and both locking blocks are engaged in the locking slot.

[0008] Optionally, the self-locking structure includes placement plates fixed to the upper and lower ends of the two brackets. One side of each of the two placement plates on one side is fixedly connected with a fixing buckle 1, and one side of each of the two placement plates on the other side is fixedly connected with a fixing buckle 2.

[0009] Optionally, the two fixing buckles one and the two fixing buckles two correspond to each other, and the inner walls of the two fixing buckles one and the two fixing buckles two are slidably connected with a card plate connecting block.

[0010] Optionally, both ends of the two card plate connecting blocks are fixedly connected to empty slots, and the inner walls of the two empty slots are provided with self-locking blocks.

[0011] Optionally, the top ends of the two brackets are fixedly connected to a fixing plate on one side of the connecting bracket, and the inner walls of the two brackets are rotatably connected to a track connecting shaft.

[0012] Compared with the prior art, this application includes at least one of the following beneficial technical effects: This device achieves a tight connection between two connecting brackets through the multiple cooperation of locking blocks, card blocks, card slots and locking ears in the locking structure; the self-locking structure further reinforces from the top and bottom ends, effectively preventing the connection from loosening. Even under harsh working conditions such as heavy load and vibration, the connection can maintain stability and ensure the safe operation of the equipment. In addition, the device adopts a snap-on design, and the installation and disassembly of the locking blocks and card plate connecting blocks do not require tools. The operation is simple and quick. Compared with traditional bolt connections, it greatly shortens the installation and maintenance time and improves work efficiency. It is especially suitable for scenarios with limited maintenance conditions, such as field engineering operations. Attached Figure Description

[0013] Figure 1 A three-dimensional structural diagram of a track plate connection structure for engineering machinery;

[0014] Figure 2 A multi-angle three-dimensional structural diagram of a track plate connection structure for engineering machinery;

[0015] Figure 3 A schematic diagram of a locking block connection structure for a track plate connection structure of engineering machinery;

[0016] Figure 4 This utility model Figure 3 A magnified structural diagram of point A in the middle.

[0017] Reference numerals: 1. Bracket; 2. Track connecting shaft; 3. Fixing plate; 4. Connecting bracket; 41. Slot; 42. Locking block through slot; 43. Locking lug; 44. Locking block; 45. Locking block; 5. Placement plate; 51. Fixing buckle one; 52. Card plate connecting block; 53. Empty slot; 54. Self-locking block; 55. Fixing buckle two. Detailed Implementation

[0018] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0019] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0020] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Example 1

[0025] like Figures 1 to 4As shown, this utility model proposes a track plate connection structure for engineering machinery, including two brackets 1 and a locking structure disposed on one side of the two brackets 1. The locking structure includes connecting brackets 4 fixed to one side of the two brackets 1. Each of the two connecting brackets 4 has a slot 41 on the side away from the bracket 1, and a locking block through groove 42 is formed on the inner wall of the two connecting brackets 4 on the side of the slot 41. A locking lug 43 is fixedly connected to one side of the inner wall of each of the two locking block through grooves 42. The two locking block through grooves 42 correspond to each other, and a locking block 44 passes through the center of each of the two locking block through grooves 42. The two locking lugs 43 are located on one side of the outer wall of the locking block 44. A locking block 45 is fixedly connected to both sides of the outer wall of the locking block 44. Both locking blocks 45 are engaged in the slot 41. The connecting brackets 4 are made of high-strength alloy steel and are welded to the brackets 1 to provide an installation base for the locking structure. On the side away from the bracket 1, there is a slot 41. The slot 41 is used to cooperate with the locking block 45 to achieve initial positioning. On the inner wall of the connecting bracket 4, there is a locking block through slot 42 on one side of the slot 41. The locking block through slot 42 is a through hole. The two locking block through slots 42 correspond to each other and provide a channel for the installation of the locking block 44. The inner wall of the two locking block through slots 42 is fixedly connected to a locking lug 43. The locking lug 43 is a metal protrusion structure that limits the locking block 44. The locking block 44 is inserted through the center of the two locking block through slots 42. The locking block 44 is made of wear-resistant alloy material. The outer walls of the locking block 44 are fixedly connected to both sides. The shape of the locking block 45 matches the slot 41 and is locked in the slot 41. When the locking block 44 passes through the locking block through slot 42, the locking block 45 is embedded in the slot 41. At the same time, the locking lug 43 fits against the outer wall of the locking block 44 to form multiple locking and prevent the connecting bracket 4 from separating.

[0026] In addition, such as Figure 1 and Figure 2As shown, both ends of the two brackets 1 are equipped with self-locking structures. Each self-locking structure includes placement plates 5 fixed to the upper and lower ends of the two brackets 1. One side of each placement plate 5 on one side is fixedly connected to a first fixing buckle 51, and the other side of each placement plate 5 on the other side is fixedly connected to a second fixing buckle 55. The first fixing buckle 51 and the second fixing buckle 55 correspond to each other, and the inner walls of both the first fixing buckle 51 and the second fixing buckle 55 are slidably connected to a locking plate connecting block 52. Both ends of the locking plate connecting block 52 are fixedly connected to slots 53, and the inner walls of both slots 53 are equipped with self-locking blocks 54. The placement plates 5 are metal flat plates used to install the fixing buckle components. The first fixing buckle 51 on one side of each placement plate 5 and the second fixing buckle 55 on the other side of each placement plate 5 are fixedly connected to each other. Both the first fixing buckle 51 and the second fixing buckle 55 are U-shaped. The two metal parts are positioned opposite each other to form a snap-fit ​​structure. The inner walls of both the first and second fixed buckles 51 and 55 are slidably connected to a plate connecting block 52. The plate connecting block 52 is a metal plate that can slide along the inner wall of the fixed buckle to connect the two placement plates 5. Both ends of the plate connecting block 52 are fixedly connected to a slot 53. The slot 53 is a rectangular groove with a self-locking block 54 on its inner wall. The self-locking block 54 is made of an elastic metal sheet and has a certain elastic deformation capability. When the plate connecting block 52 slides into the first and second fixed buckles 51 and 55, the self-locking block 54 pops out under the action of elastic force, clamps the inner wall of the fixed buckle, realizes self-locking, and prevents the plate connecting block 52 from sliding accidentally.

[0027] And, as Figure 1 As shown, the top of the two supports 1 is fixedly connected to a fixing plate 3 on one side of the connecting support 4, and the inner wall of the two supports 1 is rotatably connected to a track connecting shaft 2. The fixing plate 3 is made of thick steel plate to enhance the overall rigidity of the support 1. The track connecting shaft 2 rotatably connected to the inner wall of the two supports 1 is a high-strength alloy shaft, which is used to connect adjacent track plates so that the track can rotate flexibly to adapt to different driving conditions.

[0028] The working principle of this embodiment is as follows: Align the two brackets 1 so that the connecting brackets 4 on both sides fit together, ensuring that the locking block through slots 42 are aligned. Insert the locking block 44 through the locking block through slot 42 on one side, passing through the two connecting brackets 4. At this time, the locking blocks 45 on both sides of the locking block 44 are embedded in the corresponding slots 41, achieving initial positioning. After the locking block 44 is installed in place, the locking lugs 43 fit tightly against the outer wall of the locking block 44, restricting the axial movement of the locking block 44, completing the locking of the latch structure, and making the two connecting brackets 4 firmly connected. At the same time as the latch structure is connected, slide the locking plate connecting block 52 into the corresponding fixing block. During the sliding process within buckle 51 and fixing buckle 55, the self-locking block 54 in the slot 53 deforms under the pressure of the inner wall of the fixing buckle. When the connecting block 52 is fully slid in, the self-locking block 54 returns to its original shape under the action of elasticity, locking the inner wall of the fixing buckle to achieve self-locking. The self-locking structures at both ends work simultaneously to reinforce the two supports 1 from multiple directions, preventing the connection from loosening. The track connecting shaft 2 connects the adjacent track plates, allowing the track to rotate flexibly. The fixing plate 3 enhances the rigidity of the support 1, ensuring that the connection structure will not deform due to excessive force under heavy loads or complex road conditions. The locking structure and the self-locking structure work together to form multiple locking mechanisms, ensuring the stability of the connection between the two supports 1, and effectively preventing connection failure even under severe vibration or impact.

[0029] The above specific embodiments are merely several optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A track plate connection structure for engineering machinery, comprising two brackets (1) and a locking structure disposed on one side of the two brackets (1), characterized in that: The locking structure includes a connecting bracket (4) fixed to one side of two brackets (1). Each of the two connecting brackets (4) has a slot (41) on the side away from the bracket (1). The inner wall of each of the two connecting brackets (4) has a locking block through slot (42) on the side of the slot (41). Each of the inner walls of the two locking block through slots (42) is fixedly connected to a lock lug (43). Both of the brackets (1) are equipped with self-locking structures at their upper and lower ends.

2. The track plate connection structure for engineering machinery according to claim 1, characterized in that, The two lock block through slots (42) correspond to each other, and the lock block (44) passes through the center of the two lock block through slots (42). The two lock lugs (43) are located on one side of the outer wall of the lock block (44).

3. The track plate connection structure for engineering machinery according to claim 2, characterized in that, Both sides of the outer wall of the locking block (44) are fixedly connected with a locking block (45), and both locking blocks (45) are engaged in the slot (41).

4. The track plate connection structure for engineering machinery according to claim 1, characterized in that, The self-locking structure includes placement plates (5) fixed to the upper and lower ends of two brackets (1). One side of each of the two placement plates (5) on one side is fixedly connected to a fixing buckle one (51), and one side of each of the two placement plates (5) on the other side is fixedly connected to a fixing buckle two (55).

5. The track plate connection structure for engineering machinery according to claim 4, characterized in that, The two fixed buckles one (51) and the two fixed buckles two (55) correspond to each other, and the inner walls of the two fixed buckles one (51) and the two fixed buckles two (55) are slidably connected with the card plate connecting block (52).

6. The track plate connection structure for engineering machinery according to claim 5, characterized in that, Both ends of the two card plate connecting blocks (52) are fixedly connected with slots (53), and the inner walls of the two slots (53) are provided with self-locking blocks (54).

7. The track plate connection structure for engineering machinery according to claim 1, characterized in that, The top of the two brackets (1) is fixedly connected to a fixing plate (3) on one side of the connecting bracket (4), and the inner walls of the two brackets (1) are rotatably connected to a track connecting shaft (2).