RU210445U1 - RESERVOIR OF SHOCK ABSORBER HYDRAULIC TELESCOPIC TWO-PIPE - Google Patents

Abstract

The utility model relates to shock absorbers, namely to shock absorbers using liquid or gas as an absorbing medium for shock absorption, in particular to their structural elements, and can be used in the design of a hydraulic telescopic double-tube shock absorber for trucks and cars, buses, trolleybuses, trailers and semi-trailers designed to dampen vibrations of the body and wheels that occur during the movement of a vehicle. The technical result of the claimed utility model is to provide an increase in productivity and quality in the assembly of shock absorbers while realizing the possibility of saving on material and reducing weight during manufacture. Said technical result is achieved due to the fact that the shock absorber tank is made in the form of a hollow cylindrical body with open upper and lower parts, and said hollow cylindrical body is made of cold-worked electric-welded steel pipe.

Description

The utility model relates to shock absorbers, namely to shock absorbers using liquid or gas as an absorbing medium for shock absorption, in particular to their structural elements, and can be used in the design of a hydraulic telescopic double-tube shock absorber for trucks and cars, buses, trolleybuses, trailers and semi-trailers designed to dampen vibrations of the body and wheels that occur during the movement of a vehicle.

From the existing prior art, a vehicle shock absorber body is known (Patent RU 68625 U1, 11/27/2007, F16F 9/32, F16F 9/54), containing a pipe, a bottom and an eye, and the pipe on the side of the eye has a tapered part covering the bottom and welded to the eyelet.

The reservoir of a hydraulic shock absorber is also known from the prior art (Patent RU 176338 U1, 01/17/2018, F16F 9/32, F16F 5/00), containing a hollow body with an open upper and lower surface, moreover, the upper part of the body contains a reduced section, while the minimum height of the reduced section is equal to the combined height of the reservoir nut and the stem guide.

The closest technical solution is a shock absorber tank (Patent RU 196018 U1, 13.02.2020, F16F 9/32), containing a hollow body with a reduced section in the upper part, and a section with an increased diameter is made in the lower part of the body.

The main disadvantages of the above technical solutions are high material consumption, low productivity and quality in the assembly of shock absorbers.

The technical result of the claimed utility model is to provide an increase in productivity and quality in the assembly of shock absorbers while realizing the possibility of saving on material and reducing weight during manufacture.

Said technical result is achieved due to the fact that the reservoir of the hydraulic telescopic two-pipe shock absorber is made in the form of a hollow cylindrical body with open upper and lower parts, and said hollow cylindrical body is made of cold-worked electric-welded steel pipe.

In particular, the hollow cylindrical body does not contain reduced and/or bored and/or flared sections, and the shock absorber tank is made with the possibility of welding the lower part with the bottom of the tank and rolling the edge of the upper part with the sealing assembly of the rod guide. In this case, the hollow cylindrical body can be made without the use of machining of the bore diameter under the bottom of the tank, and the inner part of the pipe can be made with an increased class of surface roughness. In addition, the dimensions of the pipe (inner diameter and wall thickness) can be 66×1.6 mm, or 66×1.8 mm, or 66×1.9 mm, or 64×1.9 mm, or 56×2 mm , or 42×1.2 mm, or 42×1.5 mm, at the same time, the tank wall thickness can be 1.2-1.9 mm. Moreover, the pipe can be made with or without heat treatment of steel.

In particular, the tank can be made of cold-worked, cold-worked steel pipe for cardan shafts (GOST 5005-82).

The essence of the utility model is illustrated by a drawing, which shows a particular case of the execution of the proposed shock absorber tank:

in fig. 1 shows a hydraulic telescopic two-pipe shock absorber with the inventive reservoir in section, where:

1 - shock absorber reservoir;

2 - shock absorber;

3 - hollow cylindrical body;

4 - upper part of the tank;

5 - lower part of the tank;

6 - tank bottom;

7 - sealing unit;

8 - rod guide;

9 - stock;

10 - stem gland.

A special case of the implementation of the reservoir shock absorber hydraulic telescopic two-pipe can be made as follows: the tank 1 of the shock absorber 2 is made in the form of a hollow cylindrical body 3 with an open upper 4 and lower 5 parts, and the mentioned hollow cylindrical body 3 is made of a cold-worked electric-welded steel pipe in a cold-worked form for cardan shafts (GOST 5005-82). The hollow cylindrical body does not contain reduced and/or bored and/or flared sections, the reservoir 1 of the shock absorber 2 is connected by a weld in the lower part 5 with the bottom 6 of the reservoir 1 and is rolled by the edge of the upper part 4 with the sealing unit 7 of the guide 8 of the rod 9, with in this case, the edge of the upper part 4 of the tank 1 is rolled onto the end surface of the guide 8 of the rod 9 and the elastic end surface of the stuffing box 10 of the rod 9. In this case, the hollow cylindrical body 3 is made without the use of machining of the bore diameter under the bottom 6 of the tank 1, and the inner part of the pipe can be made with an increased class of cleanliness of surface roughness. In addition, pipe dimensions (pipe inner diameter and wall thickness) can be 66×1.6 mm, or 66×1.8 mm, or 66×1.9 mm, or 64×1.9 mm, or 56×2 mm, or 42×1.2 mm, or 42×1.5 mm. Moreover, the pipe can be made with or without heat treatment of steel.

The reservoir of the hydraulic telescopic double-pipe shock absorber is made and used as follows: first, the hollow cylindrical body 3 of the reservoir 1 of the shock absorber 2 is made of steel electric-welded cold-worked cold-worked pipe for cardan shafts (GOST5005-82) without the use of mechanical processing of the bore diameter under the bottom 6 of the reservoir 1. When In this case, the diameter and wall thickness of the pipe can be 66×1.6 mm, or 66×1.8 mm, or 66×1.9 mm, or 64×1.9 mm, or 56×2 mm, or 42×1, 2 mm, or 42×1.5 mm, at the same time, the wall thickness of the tank 1 can be 1.2-1.9 mm. Then, the tank 1 is welded by the bottom part 5 to the bottom 6 of the tank 1 and is rolled by the edge of the top part 4 with the sealing unit 7 of the guide 8 of the rod 9, while the edge of the top part 4 of the tank 1 is rolled onto the end surface of the guide 8 of the rod 9 and the elastic end surface of the stuffing box 10 stock 9.

The specified technical result is achieved due to the fact that the reservoir of the hydraulic telescopic two-pipe shock absorber is made without the use of machining of the bore diameter under the bottom of the reservoir, during its manufacture it is not required to reduce the diameters, and distribution or calibration is not required. Because of this, the time for processing tanks for mating parts during the assembly of shock absorbers is reduced, the assembly quality is increased by increasing the coaxiality of mating parts, and, as a result, the service life increases, the consumption of materials and the mass of the shock absorber decrease. And the ability to manufacture a tank, the inner surface of which is made with an increased class of surface roughness cleanliness, makes it possible to reduce the heating of the liquid by reducing friction against the tank walls, which also realizes the possibility of increasing the durability of the shock absorber as a whole.

Technical solutions coinciding with the totality of the essential features of the claimed utility model have not been identified, which allows us to conclude that the claimed utility model complies with such a patentability condition as "novelty".

Claims (7)

1. The tank shock absorber hydraulic telescopic two-pipe, made in the form of a hollow cylindrical body with an open upper and lower parts, characterized in that the said hollow cylindrical body is made of cold-worked electric-welded steel pipe. 2. Hydraulic telescopic double-pipe shock absorber tank according to claim 1, characterized in that the hollow cylindrical body does not contain reduced and/or bored and/or flared sections. 3. Hydraulic telescopic double-pipe shock absorber tank according to claim 1, characterized in that it is made with the possibility of welding the lower part with the bottom of the tank and rolling the edge of the upper part with the sealing assembly of the rod guide. 4. Hydraulic telescopic two-pipe shock absorber tank according to claim 1, characterized in that the hollow cylindrical body is made without the use of machining of the bore diameter under the bottom of the tank. 5. Hydraulic telescopic two-pipe shock absorber tank according to claim 1, characterized in that the inner part of the pipe is made with an increased class of surface roughness cleanliness. 6. Hydraulic telescopic double-pipe shock absorber tank according to claim 1, characterized in that the inner diameter of the pipe and the wall thickness of the pipe are 66 × 1.6 mm, or 66 × 1.8 mm, or 66 × 1.9 mm, or 64 × 1.9 mm, or 56×2 mm, or 42×1.2 mm, or 42×1.5 mm, at the same time, the tank wall thickness can be 1.2-1.9 mm. 7. Hydraulic telescopic two-pipe shock absorber tank according to claim 3, characterized in that the pipe is made with or without heat treatment of steel.

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