A V-type combined sealing structure for oil seal at the end of a parallel heavy-duty hydraulic cylinder tie rod

Abstract

This utility model discloses a V-shaped combined sealing structure for the oil seal of the connecting rod end of a parallel heavy-duty hydraulic cylinder, including a cylinder end cover (1), a first copper sleeve (2), a sealing element (3), a cylinder pressure cover (4), a second copper sleeve (5), a lip seal (6), and a conical lubricating nozzle (7). The first copper sleeve (2), the second copper sleeve (5), and the sealing element (3) are installed inside the cylinder end cover (1), and the lip seal (6) and the conical lubricating nozzle (7) are installed on the cylinder pressure cover (4). This utility model uses a V-shaped combined oil seal, which solves the technical problems of easy oil leakage and complicated replacement procedures of the oil seal at the connecting rod end of the hydraulic cylinder under heavy load and swing conditions. It can reduce the equipment failure (oil leakage) rate, reduce the physical exertion of employees, reduce the time consumed during disassembly, and improve production efficiency.

Description

Technical Field

[0001] This utility model relates to a hydraulic cylinder sealing structure, and more particularly to a V-type combined sealing structure for the oil seal at the end of a parallel heavy-duty hydraulic cylinder tie rod, belonging to the field of metallurgical equipment technology. Background Technology

[0002] The existing 5-ton manipulator clamping cylinder pull rod end Y-type oil seal groove is a closed groove. The Y-type oil seal does not have a significant advantage for parallel heavy load and swinging conditions, and frequent oil leakage occurs in actual use, making the replacement process complicated. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a V-shaped combined sealing structure for the oil seal at the end of the parallel heavy-duty hydraulic cylinder tie rod, thereby reducing the oil leakage rate of the hydraulic cylinder and improving production efficiency.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A V-shaped combined sealing structure for the oil seal of a parallel heavy-duty hydraulic cylinder tie rod end includes a cylinder end cover, a first copper sleeve, a sealing element, a cylinder pressure cover, a second copper sleeve, a lip seal, and a conical lubricating nozzle. The first copper sleeve, the second copper sleeve, and the sealing element are installed inside the cylinder end cover, and the lip seal and the conical lubricating nozzle are installed on the cylinder pressure cover.

[0006] As a preferred embodiment, an oil storage groove and a transverse groove are provided on the inner wall of the first copper sleeve, and the transverse groove is connected to the oil storage groove.

[0007] Beneficial Effects: Compared with existing technologies, this utility model uses a V-type combined oil seal, solving the technical problems of easy oil leakage and complex replacement procedures of the oil seal at the cylinder rod end under heavy load and swing conditions. It has greater adaptability to heavy load and swing conditions. The groove applied to the V-type oil seal of the rod should be an open groove, which needs to be changed to a gland type, and a sleeve should be installed on the gland to provide support when the rod is in parallel action, thereby reducing the wear of the V-type oil seal and extending its service life. Considering the convenience of installation and subsequent maintenance, the V-type oil seal can be split, and the hydraulic cylinder can be replaced without disassembling the seal. This utility model has a simple structure, which can reduce the equipment failure (oil leakage) rate, reduce the physical exertion of employees, reduce the time spent in the disassembly process, and improve production efficiency. Attached Figure Description

[0008] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0009] Figure 2 This is a front structural diagram of the present invention;

[0010] Figure 3 yes Figure 2 AA section view;

[0011] Figure 4 This is a three-dimensional structural diagram of the cylinder end cap of this utility model;

[0012] Figure 5 This is a schematic diagram of the front structure of the cylinder end cap of this utility model;

[0013] Figure 6 yes Figure 5 AA section view;

[0014] Figure 7 This is a three-dimensional structural diagram of the first copper sleeve of this utility model;

[0015] Figure 8 yes Figure 7 Enlarged view of Part III.

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Detailed Implementation

[0017] Example 1: As Figure 1 As shown, a V-shaped combined sealing structure for the oil seal of a parallel heavy-duty hydraulic cylinder tie rod end includes a cylinder end cap 1, a first copper sleeve 2, a sealing element 3, a cylinder pressure cap 4, a second copper sleeve 5, a lip seal 6, and a conical lubricating nozzle 7. The first copper sleeve 2, the second copper sleeve 5, and the sealing element 3 are installed inside the cylinder end cap 1, and the lip seal 6 and the conical lubricating nozzle 7 are installed on the cylinder pressure cap 4. Three oil storage grooves 8 and a transverse groove 9 are provided on the inner wall of the first copper sleeve 2, and the transverse groove 9 communicates with the three oil storage grooves 8.

[0018] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A V-type combined sealing structure for the oil seal at the end of a parallel heavy-duty hydraulic cylinder tie rod, characterized in that: It includes a cylinder end cap (1), a first copper sleeve (2), a seal (3), a cylinder pressure cap (4), a second copper sleeve (5), a lip seal (6), and a conical lubricating nozzle (7). The first copper sleeve (2), the second copper sleeve (5), and the seal (3) are installed inside the cylinder end cap (1), and the lip seal (6) and the conical lubricating nozzle (7) are installed on the cylinder pressure cap (4).

2. The V-type combined sealing structure for the oil seal at the end of the parallel heavy-duty hydraulic cylinder tie rod according to claim 1, characterized in that: An oil storage groove (8) and a transverse groove (9) are provided on the inner wall of the first copper sleeve (2), and the transverse groove (9) is connected to the oil storage groove (8).

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