Caterpillar track assembly of engineering machinery

Abstract

The utility model discloses a caterpillar track assembly of engineering machinery, which relates to the technical field of engineering machinery parts, and comprises four caterpillar track sections and pin shafts, and every two caterpillar track sections are respectively positioned at the upper end and the lower end; after the outer shaft rods at the two ends of the inner shaft rod penetrate through the sleeve holes in the end and are inserted into the pin holes of the two track link sections at the other end, the end face rubber sleeves arranged at the ends of the outer shaft rods in a sleeving mode can abut against the outer end rings, close to the outer sides, in the pin holes, and the outer end faces of the outer shaft rods can be subjected to dustproof protection. The inner shaft rod is arranged between the sleeve holes of the two caterpillar track sections at one end, and a metal gasket is embedded in the inner side, located in the position of the end face ring groove, of the inner shaft rod. And the end face rubber ring is embedded in the position close to the outer side and can be in contact with the side wall, located in the sleeve hole, of the sleeve end, dust prevention protection is achieved for gaps between the inner shaft rod and the sleeve end, and the situation that dust particles enter from the positions to cause abrasion is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery components, in particular to a chain track assembly of engineering machinery. Background Art

[0002] The crawler track assembly plays a vital role in construction machinery. It is a core component for its movement and operation, providing stable support and powerful driving force in complex and changing terrain, ensuring efficient operation in a variety of harsh environments. Specifically, the crawler track assembly, through its unique structural design and material selection, effectively increases the contact area between the construction machinery and the ground, thereby reducing ground pressure and improving the construction machinery's passability and off-road capabilities. At the same time, the crawler track assembly also possesses excellent wear resistance and strength, capable of withstanding the tremendous impact and friction generated by construction machinery during operation, ensuring the stability and reliability of the construction machinery. Furthermore, the crawler track assembly also has flexible steering and climbing capabilities, allowing construction machinery to operate freely on narrow and rugged construction sites, greatly improving construction efficiency and work quality.

[0003] In the process of implementing this solution, the inventor found that the following problems in the prior art have not been well solved: gaps are easily formed between the pin end and the pin shaft, the inner shaft rod and the sleeve end when the chain link rotates, and dust particles are easily entered into the gaps, causing the inner end face of the friction hole. Long-term friction causes the gaps to become larger and larger, and finally the connection between the shaft pin and the pin hole and the sleeve hole shakes, which requires disassembly and replacement. If it is not replaced in time, it is easy to cause the track to be disjointed due to vibration when running on bumpy roads, but since disassembly and assembly are troublesome, it will greatly affect the progress of the project. Utility Model Content

[0004] The main purpose of the utility model is to provide a chain track assembly for engineering machinery, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] The linking mechanism is a pair of lockhole that is formed on a pair of locking plate, and the locking plate is connected along the linking mechanism, and the locking plate is connected along the locking plate to form a lockhole, and the locking plate is connected along the locking plate to form a lockhole.

[0007] Preferably, the outer shaft rods are respectively connected to the sleeve holes at matching positions, and one end passing through the sleeve holes is respectively inserted into the pin holes at matching positions.

[0008] Preferably, the end face rubber sleeve is provided with a chamfered groove at one end close to the outer shaft rod, and an end hole is provided at the center of the end face rubber sleeve. The outer side of the end face rubber sleeve close to the end hole is in contact with the side close to the inner and outer end rings of the pin hole respectively.

[0009] Preferably, a chamfer is provided at one end of the outer shaft rod close to the end face rubber sleeve, and the end face rubber sleeve is respectively sleeved on the outer wall of the chamfer through the chamfer groove.

[0010] Preferably, an annular groove is bored on the outer wall of the outer shaft rod near one end of the end face rubber sleeve, and an annular rubber sleeve is sleeved inside the annular groove.

[0011] Preferably, the end face rubber ring is in contact with the side close to the metal washer, the side of the end face rubber ring away from the metal washer is located on the outside of the end face ring groove, and its end located on the outside of the end face ring groove is in contact with the outside of the sleeve end close to the sleeve hole.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. After the outer shaft rods at both ends of the inner shaft rod respectively pass through the sleeve hole at one end and are inserted into the pin holes of the two chain track links at the other end, the end face rubber sleeves sleeved on the ends of the outer shaft rods will rest on the outer end rings on the outside of the pin holes, so that the outer end faces can be protected from dust, preventing dust from entering the pin holes from the outer ends and causing damage due to friction between the inner wall and the outer shaft rod.

[0014] 2. The inner shaft is located between the sleeve holes of the two chain track links at one end. A metal washer is embedded on the inner side of the end face ring groove, and an end face rubber ring is embedded on the outer side to contact the side wall of the sleeve end at the sleeve hole position, thereby protecting the gap between the inner shaft and the sleeve end from dust particles entering here and causing wear.

[0015] In summary, the present application can protect the two positions of the assembly, avoiding the tedious problem of disassembling the track and replacing corresponding parts after wear caused by friction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural diagram of a chain track assembly of an engineering machinery according to the present utility model;

[0017] Figure 2 This is a schematic cross-sectional view of a chain track segment of a chain track assembly for engineering machinery according to the present invention;

[0018] Figure 3 This is a schematic diagram of a partially separated structure of a pin shaft of a chain track assembly of an engineering machinery according to the present invention;

[0019] Figure 4 This is a structural diagram of a partial pin installation of a chain track assembly of an engineering machinery according to the present invention;

[0020] Figure 5 This is an enlarged structural diagram of point A of a chain track assembly of an engineering machinery according to the present invention.

[0021] In the figure: 1, track link; 11, pin end; 1101, pin hole; 1102, outer end ring; 12, tread end; 13, sleeve end; 1301, sleeve hole;

[0022] 2. Pin; 21. Inner shaft; 2101. End face ring groove; 2102. Metal washer; 2103. End face rubber ring; 22. Outer shaft; 2201. Ring groove; 2202. Chamfer; 23. End face rubber sleeve; 2301. Chamfer groove; 2302. End face hole; 24. Ring rubber sleeve. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] like Figure 1-5As shown, a chain track assembly of an engineering machinery includes a chain track segment 1 and a pin shaft 2. There are four chain track segments 1, two of which are located at the upper and lower ends. The chain track segment 1 includes a pin end 11, a tread end 12, and a sleeve end 13. The sleeve ends 13 of the chain track segments 1 on one side of the upper and lower ends are respectively fitted with the pin ends 11 of the chain track segments 1 on the other side. A pin shaft 2 is provided between the sleeve ends 13 of the adjacent chain track segments 1. The end of the sleeve end 13 is bored with a sleeve hole 1301, and the end of the pin end 11 is bored with a pin hole 1101 An outer end ring 1102 is fixed to the end of the pin hole 1101 away from the pin shaft 2. The pin shaft 2 includes an inner shaft rod 21. Outer shaft rods 22 are provided at both ends of the inner shaft rod 21. An end face ring groove 2101 is chiseled at the end of the inner shaft rod 21 close to the outer shaft rod 22. A metal washer 2102 is embedded in the inner side of the end face ring groove 2101, and an end face rubber ring 2103 is embedded in the outer side of the end face ring groove 2101. An end face rubber sleeve 23 is sleeved on the outer side of the end of the outer shaft rod 22 away from the inner shaft rod 21.

[0025] Specifically, the outer shaft rod 22 is respectively connected to the sleeve holes 1301 at matching positions, and one end passing through the sleeve holes 1301 is respectively inserted into the pin holes 1101 at matching positions.

[0026] Specifically, a chamfered groove 2301 is chiseled on one end of the end face rubber sleeve 23 close to the outer shaft rod 22, an end hole 2302 is chiseled on the center of the end face rubber sleeve 23, and the outer side of one end of the end face rubber sleeve 23 close to the end hole 2302 is in contact with the side close to the inner and outer end rings 1102 of the pin hole 1101 respectively, and a chamfer 2202 is provided on the end of the outer shaft rod 22 close to the end face rubber sleeve 23. The end face rubber sleeve 23 is respectively sleeved on the outer wall of the chamfer 2202 through the chamfered groove 2301 to achieve better dustproof effect.

[0027] Specifically, an annular groove 2201 is carved on the outer wall of the outer shaft 22 near the end rubber sleeve 23, and an annular rubber sleeve 24 is sleeved inside the annular groove 2201 to increase the sealing effect of the end position and achieve secondary dustproof protection.

[0028] Specifically, the end face rubber ring 2103 is in contact with the side close to the metal gasket 2102, and the side of the end face rubber ring 2103 away from the metal gasket 2102 is located on the outside of the end face ring groove 2101, and its end located on the outside of the end face ring groove 2101 is in contact with the outside of the side of the sleeve end 13 close to the sleeve hole 1301, thereby increasing the sealing performance at this location.

[0029] Working principle: After the outer shaft rods 22 at both ends of the inner shaft rod 21 respectively pass through the sleeve hole 1301 at one end and are inserted into the pin holes 1101 of the two chain track links 1 at the other end, the end face rubber sleeve 23 sleeved on the end of the outer shaft rod 22 will rest on the outer end ring 1102 at the outer side of the pin hole 1101, so that its outer end face can be protected from dust, preventing dust from entering the interior of the pin hole 1101 from the outer end and causing damage from friction between its inner wall and the outer shaft rod 22. Between the sleeve holes 1301 of the two chain track links 1 at one end of the inner shaft rod 21, a metal washer 2102 is embedded on the inner side of the end face ring groove 2101, and an end face rubber ring 2103 is embedded on the outer side, which can contact the side wall of the sleeve end 13 at the sleeve hole 1301, thereby playing a role in dust-proof protection of the gap between the inner shaft rod 21 and the sleeve end 13, preventing dust particles from entering here and causing wear.

[0030] The circuits, electronic components and control modules involved are all existing technologies and can be fully implemented by those skilled in the art. Needless to say, the content protected by this utility model does not involve improvements to software and methods.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A chain track assembly for engineering machinery, comprising a chain track section (1) and a pin (2), characterized in that: There are four chain track segments (1), which are located at the upper and lower ends in pairs. The chain track segments (1) include a pin end (11), a tread end (12) and a sleeve end (13). The sleeve ends (13) of the chain track segments (1) on one side of the upper and lower ends are respectively fitted with the pin ends (11) of the chain track segments (1) on the other side. A pin shaft (2) is provided between the sleeve ends (13) of the adjacent chain track segments (1). A sleeve hole (1301) is bored at the end of the sleeve end (13), and a pin hole (1101) is bored at the end of the pin end (1101). The interior of the pin hole (1101) is away from the pin shaft. An outer end ring (1102) is fixed at one end of (2), the pin shaft (2) includes an inner shaft rod (21), and outer shaft rods (22) are provided at both ends of the inner shaft rod (21), and an end face ring groove (2101) is cut at one end of the inner shaft rod (21) close to the outer shaft rod (22), a metal washer (2102) is embedded in the inner side of the end face ring groove (2101), an end face rubber ring (2103) is embedded in the outer side of the end face ring groove (2101), and an end face rubber sleeve (23) is sleeved on the outer side of the end of the outer shaft rod (22) away from the inner shaft rod (21).

2. The chain track assembly of engineering machinery according to claim 1, characterized in that: The outer shaft (22) is connected to the sleeve holes (1301) at matching positions, and one end passing through the sleeve holes (1301) is inserted into the pin holes (1101) at matching positions.

3. The chain track assembly of engineering machinery according to claim 1, characterized in that: The end face rubber sleeve (23) is provided with a chamfered groove (2301) at one end close to the outer shaft (22), and an end hole (2302) is provided at the center of the end face rubber sleeve (23). The outer side of one end of the end face rubber sleeve (23) close to the end hole (2302) is in contact with the side close to the inner and outer end rings (1102) of the pin hole (1101).

4. The chain track assembly of engineering machinery according to claim 3, characterized in that: A chamfer (2202) is provided at one end of the outer shaft (22) close to the end face rubber sleeve (23), and the end face rubber sleeve (23) is sleeved on the outer wall at the chamfer (2202) through the chamfer groove (2301).

5. The chain track assembly of engineering machinery according to claim 1, characterized in that: An annular groove (2201) is formed on the outer wall of the outer shaft (22) near one end of the end face rubber sleeve (23), and an annular rubber sleeve (24) is sleeved inside the annular groove (2201).

6. The chain track assembly of engineering machinery according to claim 1, characterized in that: The end face rubber ring (2103) is in contact with the side close to the metal washer (2102), and the side of the end face rubber ring (2103) away from the metal washer (2102) is located on the outside of the end face ring groove (2101), and the end thereof located on the outside of the end face ring groove (2101) is in contact with the outside of the sleeve end (13) located on the side close to the sleeve hole (1301).

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