CN201183244Y - Oil cylinder piston ring assembling auxiliary device - Google Patents

Abstract

The utility model relates to the assembly field of mechanical parts, in particular to an assembly auxiliary device for an oil-cylinder piston ring, which is designed aiming at the condition that the assembly of the oil-cylinder piston ring is inconvenient. The designing essential point is as follows: the auxiliary device is arranged between a piston and an oil cylinder and is provided with a cone-shaped guiding surface and a transition hole, and the guiding surface guides the piston to position in the oil cylinder. The piston ring on the piston gradually furls under the cone-directional extrusion action of the guiding surface of the auxiliary device and further slips into the transition hole with the same inside diameter with the oil cylinder, and under the guidance of the transition hole, the piston sleeved with the piston ring is easily arranged in the oil cylinder. Due to the auxiliary device, the assembly efficiency is improved, the labor intensity of the work is reduced, and the occurrence of accidents at work is also reduced. The assembly auxiliary device has the advantages of convenient installation and easy operation, and is especially suitable for the quick assembly for large-batch pistons, piston rings and oil cylinders.

Description

Oil cylinder piston ring assembling servicing unit

Technical field

The utility model relates to component of machine assembling field, is a kind of oil cylinder piston ring assembling servicing unit.

Background technology

At present, the assembling specific purpose tool of market upper cylinder piston ring is less, and most of assembling modes are based on hand assembled.When the hand assembled of oil cylinder piston ring, because piston and piston rod often are difficult for remaking the adjusting of assembly station after assembling, and piston ring has factors such as elasticity, makes hand assembled cause certain degree of difficulty, has directly influenced production efficiency.Moreover because auxiliary equipments such as piston rod, piston surperficial " sharp ", one of normal security incident that takes place is that the workman will point scuffing easily in assembling process.

Summary of the invention

The utility model is the deficiency that overcomes above-mentioned existence, and purpose is to provide a kind of oil cylinder piston ring assembling servicing unit to this area, makes it solve the technical problem that the assembling of oil cylinder piston ring is inconvenient, operating efficiency is lower.The purpose of this utility model realizes by the following technical solutions.

A kind of oil cylinder piston ring assembling servicing unit, its design main points are that servicing unit is arranged between piston and the cylinder tube, and described servicing unit is provided with the guide surface and the excessive hole of taper, and described guide surface guiding piston is inserted cylinder tube.When the piston ring on the piston at the guiding face cone of servicing unit under the effect of extruding, draw in gradually, slip into one section the excessive hole identical then with the cylinder tube internal diameter, under the guiding in excessive hole, the piston that is with piston ring is easily packed in the cylinder tube.

The utility model has solved the technical problem of oil cylinder piston ring assembling inconvenience, has improved efficiency of assembling, reduces labor intensity, injury suffered on the job accident.Have characteristics easy for installation, easy-operating, be particularly useful for the quick assembling of more large batch of piston, piston ring and cylinder tube.

Description of drawings

Fig. 1 is a structure exploded perspective view of the present utility model.

Fig. 2 is the A portion enlarged drawing of Fig. 1.

Fig. 3 is a piston ring schematic diagram of the present utility model.

Fig. 4 is a servicing unit schematic diagram of the present utility model.

Fig. 5 is the schematic diagram that piston of the present utility model will be inserted cylinder tube.

Fig. 6 is the schematic diagram that piston of the present utility model is inserted servicing unit.

Fig. 7 is the schematic diagram that piston of the present utility model, piston ring are inserted one section of cylinder tube.

Fig. 8 is the schematic diagram that piston of the present utility model, piston ring are inserted cylinder tube fully.

The direction of arrow of Fig. 5 to Fig. 8 mark is the placing direction of piston.

The sequence number of above accompanying drawing and title: 1, piston, 2, piston ring, 3, servicing unit, 4, cylinder tube, 31, guide surface, 32, excessive hole.

The specific embodiment

Embodiment is an example with practical operation of the present utility model.As shown in Figure 3, three piston rings 2 are inserted respectively in the groove of piston 1; As shown in Figure 5, the servicing unit 3 with corresponding diameter is enclosed within on the cylinder tube 4; Piston is inserted in the cylinder tube along the cylinder tube axis direction.Shown in Fig. 6,7, the piston that is with piston ring is under the effect of the guide surface 31 of servicing unit, and article one piston ring draws in, enters the excessive hole 32 of servicing unit; Along with article one piston ring of piston is inserted cylinder tube, the second piston ring draws in, enters excessive hole; According to identical mode, three piston rings of piston are inserted in the cylinder tube successively.As shown in Figure 8, the piston that is with piston ring is the most at last all packed in the cylinder tube.

Claims (1)

1, a kind of oil cylinder piston ring assembling servicing unit, it is characterized in that servicing unit (3) is arranged between piston (1) and the cylinder tube (4), described servicing unit is provided with the guide surface (31) and the excessive hole (32) of taper, and described guide surface guiding piston (1) is inserted cylinder tube (4).

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