Universal joint assembly of agricultural machinery

Abstract

The utility model relates to the technical field of mechanical universal joint assemblies, and discloses an agricultural mechanical universal joint assembly which comprises a cross, connecting shafts are fixedly installed at the four ends of the cross, and sleeves are arranged on the outer surfaces of the connecting shafts in a sleeved mode. The oil injection nozzle is arranged on the outer surface of the front end of the cross, an oil injection pipe is fixedly installed on the outer surface of the front end of the oil injection nozzle, a piston is inserted into an opening of the oil injection pipe, a limiting assembly is arranged on the outer surface of the oil injection nozzle, and the piston is limited and fixed through the limiting assembly. The piston is arranged at one end of the oil filling pipe to close the oil filling pipe, one end of the piston is embedded in the opening of the oil filling pipe to close the oil filling pipe, the sealing effect of one end of the oil filling pipe is improved, the limiting structure is arranged on the surface to fix the piston, the piston is prevented from moving due to external pressure, and external particles are prevented from entering the cross.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical universal joint assembly technical field, concretely is a kind of agricultural machinery universal joint assembly. BACKGROUND

[0002] For example, a kind of oil seal is provided with metal framework's cross axle universal joint in Chinese patent CN202360620U.The cross axle universal joint, including cross axle, the axle head of the cross axle is provided with outer ring, the outer ring is provided with needle roller between the axle head of the cross axle, oil seal is provided on the inner end surface of the axle head of the cross axle, the outer ring, the oil seal is embedded with framework.The beneficial effects of the utility model are: framework is provided in oil seal, reduces the deformation of oil seal, to solve the deformation of oil seal, short service life, improve its sealing performance, suitable for use, but the inside of traditional mechanical universal joint setting oil nozzle is mostly set using ball and spring structure, first, the surface of ball cannot be perfectly combined with the surface of oil nozzle, second, ball is easily pushed inwards under extrusion of outside, some soil is easily entered into the inside of universal joint, to affect the transmission effect between transmission structure, so a kind of agricultural machinery universal joint assembly is proposed to solve the above problems. SUMMARY

[0003] (I) the technical problem solved

[0004] In view of the deficiencies in the prior art, the utility model provides an agricultural machinery universal joint assembly, which has the advantages of increasing the sealing effect of the oil nozzle and solving the problem of poor sealing effect of the traditional oil nozzle.

[0005] (II) technical scheme

[0006] To achieve the above-mentioned purpose of increasing the sealing effect of the oil nozzle, the utility model provides the following technical scheme: an agricultural machinery universal joint assembly, comprising a cross, four ends of the cross are fixedly installed with connecting shafts, the outer surfaces of the connecting shafts are sleeved with sleeves;

[0007] An oil nozzle is arranged on the outer surface of the front end of the cross, the front end of the oil nozzle is fixedly installed with an oil injection pipe, a piston is inserted into the opening of the oil injection pipe, and a limiting assembly is arranged on the outer surface of the oil nozzle to limit and fix the piston.

[0008] Preferably, the bottom end of the sleeve is sleeved with an oil seal, which seals the connection between the sleeve and the connecting shaft to prevent lubricating oil from leaking out.

[0009] Preferably, the other end of the oil nozzle is fixedly installed with a mounting pipe, and the oil nozzle is threadedly connected with the cross through the mounting pipe.

[0010] Preferably, the limiting assembly comprises a connecting ring arranged at one end of the piston, and the inner wall of the connecting ring is fixedly connected with the outer surface of one end of the piston.

[0011] Preferably, the outer surface of the oil injection pipe is sleeved with a sleeve, the outer surface of the oil injection pipe is provided with a sliding groove at the inner side of the sleeve, the inner wall of the sleeve is fixedly provided with a sliding rod at one end, and the one end of the sliding rod is fixedly connected with the outer surface of the connecting ring through the sliding groove. The sleeve slides along the sliding groove, drives the connecting ring through the sliding rod, and thus drives the piston to open the opening at one end of the oil injection pipe, facilitating the injection of lubricating oil.

[0012] Preferably, the outer surface of the top end of the sleeve is provided with a limiting rod, and the limiting rod is threadedly connected with the sleeve. The top end of the oil injection pipe is provided with a limiting groove matched with the bottom end of the limiting rod. The limiting rod on the sleeve is rotated, and the one end of the limiting rod is moved upwards to be separated from the limiting groove on the surface of the oil injection pipe, so that the limiting of the sleeve is released.

[0013] (Three) beneficial effects

[0014] Compared with the prior art, the utility model provides a kind of agricultural machinery universal joint assembly, with the following beneficial effects:

[0015] By being provided with piston at one end of oil injection pipe and being closed, piston one end is embedded in the opening of oil injection pipe, and the oil injection pipe is closed, the sealing effect of the one end of the oil injection pipe is increased, and the surface is provided with a limiting structure, the piston is fixed, the piston is prevented from moving under external pressure, and external particles are prevented from entering the cross inside. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the structure schematic diagram of the utility model;

[0017] Figure 2 It is the overall structure explosion drawing of the utility model;

[0018] Figure 3 It is the structure schematic diagram of the oil injection nozzle of the utility model;

[0019] Figure 4 It is the structure schematic diagram of the oil injection nozzle of the utility model;

[0020] Figure 5 It is the structure schematic diagram of the oil injection nozzle of the utility model.

[0021] In the drawing: 1, cross; 11, connecting shaft; 12, sleeve; 13, oil seal; 2, oil injection nozzle; 21, mounting pipe; 22, oil injection pipe; 23, sleeve; 24, limiting rod; 25, sliding groove; 26, piston; 27, connecting ring; 28, sliding rod. DETAILED DESCRIPTION

[0022] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0023] Please refer to Figures 1-5 The utility model provides the following technical scheme: A kind of agricultural machinery universal joint assembly, including cross 1, the four ends of the cross 1 are fixedly installed with connecting shaft 11, the outer surface of the connecting shaft 11 is equipped with sleeve 12;

[0024] In the present example, the bottom end outer surface of the sleeve 12 is equipped with oil seal 13, which seals the connection between the sleeve 12 and the connecting shaft 11, preventing the leakage of lubricating oil.

[0025] In the present example, the oil injection nozzle 2 is provided on the outer surface of the front end of the cross 1, and the oil injection nozzle 2 is fixedly installed with an oil injection pipe 22 on the outer surface of the front end, the opening of the oil injection pipe 22 is inserted with a piston 26, and the outer surface of the oil injection nozzle 2 is provided with a limiting assembly, which limits and fixes the piston 26, and the other end of the oil injection nozzle 2 is fixedly installed with a mounting pipe 21, and the oil injection nozzle 2 is threadedly connected with the cross 1 through the mounting pipe 21.

[0026] The limiting assembly includes a connecting ring 27 provided on one end of the piston 26, and the inner wall of the connecting ring 27 is fixedly connected with the outer surface of one end of the piston 26, the outer surface of the oil injection pipe 22 is equipped with a sleeve 23, and the inner side of the outer surface of the oil injection pipe 22 is provided with a sliding groove 25, the inner wall of one end of the sleeve 23 is fixedly installed with a sliding rod 28, and one end of the sliding rod 28 is fixedly connected with the outer surface of the connecting ring 27 through the sliding groove 25, the sleeve 23 slides along the sliding groove 25, and the connecting ring 27 is driven by the sliding rod 28, thereby driving the piston 26 to open the opening at one end of the oil injection pipe 22, facilitating the injection of lubricating oil.

[0027] It is also necessary to explain in the present example that the top end outer surface of the sleeve 23 is provided with a limiting rod 24, and the limiting rod 24 is threadedly connected with the sleeve 23, and the top end outer surface of the oil injection pipe 22 is provided with a limiting groove matched with the bottom end of the limiting rod 24, the limiting rod 24 on the sleeve 23 is rotated, the limiting rod 24 is moved upward, the one end of the limiting rod 24 is separated from the limiting groove on the surface of the oil injection pipe 22, and the limiting of the sleeve 23 is released.

[0028] The working principle of the present embodiment is as follows:

[0029] When it is needed to inject lubricating oil into the cross 1, the limiting rod 24 on the sleeve 23 is rotated to move the limiting rod 24 upward, so that the one end of the limiting rod 24 is separated from the limiting groove on the surface of the oil injection pipe 22, the sleeve 23 is released, the sleeve 23 is slid along the sliding groove 25, the connecting ring 27 is driven by the sliding rod 28, so that the piston 26 is opened from the opening at one end of the oil injection pipe 22, the lubricating oil is conveniently injected, after the injection is completed, the piston 26 is reset by the sleeve 23, the one end of the oil injection pipe 22 is closed, then the limiting rod 24 is rotated to reset and fix, so that the piston 26 is limited and fixed, the length of the sleeve 23 is greater than the length of the sliding groove 25, in the process of pulling back and forth, the sliding groove 25 is in the state of being covered by the sleeve 23.

[0030] It should be noted that, in this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0031] Although the embodiments of the present application have been shown and described, it is to be understood that for the purpose of the present application, the embodiments change, modify, replace, and vary in many ways without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An agricultural machine universal joint assembly, characterized by, Include: The cross (1), the four ends of the cross (1) are fixedly installed with connecting shaft (11), the outer surface of the connecting shaft (11) is sleeved with sleeve (12); The oil nozzle (2) is arranged on the outer surface of the front end of the cross (1), the front end of the outer surface of the oil nozzle (2) is fixedly installed with the oil nozzle (22), the opening of the oil nozzle (22) is inserted with the piston (26), the outer surface of the oil nozzle (2) is provided with a limiting assembly, and the piston (26) is limited and fixed by the limiting assembly.

2. The agricultural machine universal joint assembly of claim 1, wherein: The bottom end of the outer surface of the sleeve (12) is sleeved with the oil seal (13).

3. The agricultural machine universal joint assembly of claim 1, wherein: The other end of the oil nozzle (2) is fixedly installed with the mounting pipe (21), and the oil nozzle (2) is screwed with the cross (1) through the mounting pipe (21).

4. The agricultural machine universal joint assembly of claim 1, wherein: The limiting assembly includes a connecting ring (27) arranged at one end of the piston (26), and the inner wall of the connecting ring (27) is fixedly connected with the outer surface of one end of the piston (26).

5. The agricultural machine universal joint assembly of claim 4, wherein: The outer surface of the oil nozzle (22) is sleeved with the sleeve (23), the inner side of the outer surface of the oil nozzle (22) is provided with a sliding groove (25), one end of the inner wall of the sleeve (23) is fixedly installed with a sliding rod (28), and one end of the sliding rod (28) is fixedly connected with the outer surface of the connecting ring (27) through the sliding groove (25).

6. An agricultural machine universal joint assembly as claimed in claim 5, characterized in that: The top end of the outer surface of the sleeve (23) is installed with a limiting rod (24), and the limiting rod (24) is screwed with the sleeve (23), and the top end of the outer surface of the oil nozzle (22) is provided with a limiting groove matched with the bottom end of the limiting rod (24).

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