CN211501927U - Steel wire reinforced hydraulic rubber hose - Google Patents

Abstract

The utility model relates to the field of hydraulic hoses, and discloses a steel wire reinforced hydraulic rubber hose, which comprises a hose body, a sleeve and a connector, wherein the hose body is sleeved at the end part of the connector; still include metal collapsible tube and transition pipe, metal collapsible tube, transition pipe all overlap and establish on the body, and the one end and the metal collapsible tube of transition pipe are fixed, and the other end is fixed with the sleeve pipe, are equipped with first packing ring between metal collapsible tube and the body, all are equipped with the clamp on metal collapsible tube and the sleeve pipe. The metal collapsible tube cooperation body is crooked to reduce the body in the crooked degree of joint connection department, reduce the cracked possibility of body, first packing ring can prevent that impurity from getting into in the clearance between body and the sleeve pipe, plays the effect of protection body, guarantees the normal life of hose.

Description

Steel wire reinforced hydraulic rubber hose

Technical Field

The utility model relates to a hydraulic hose field especially relates to a steel wire reinforcing hydraulic pressure rubber hose.

Background

Hydraulic hose assemblies are commonly used in machinery to connect transitional hydraulic lines between mechanisms that produce relative motion, such as between an excavator implement and a turntable. In large-scale engineering machinery, especially ultra-large hydraulic excavator, the equipment can produce relative motion by a large margin, simultaneously, because hydraulic system pipeline latus rectum is big (being greater than DN50), and operating pressure is high (30MPa), in order to satisfy the user demand, the hydraulic hose just needs more than 5 layers of steel wire to weave, leads to the minimum bend radius of hose very big (being greater than 600mm), simultaneously in order to satisfy great working amplitude, often needs longer hose (being greater than 3 meters), causes the hose to produce local overbending easily in the use, and the actual bend radius is less than the minimum bend radius of recommended use promptly. Particularly, at the part where the buckling joint is engaged with the buckling sleeve, the steel wire wound in the hose can only deform towards one side direction, so that stress is concentrated, the steel wire is easy to break, and the service life of the hose is shortened.

Chinese published patent numbers: CN208074359U discloses a hydraulic hose joint, which comprises a crimping joint, a crimping sleeve, a hose, a supporting sleeve and a rubber sheath; the hose is sleeved at the end part of the buckling and pressing joint, then the hose is fixed at the joint of the buckling and pressing joint through buckling and pressing of the buckling and pressing sleeve, and after the buckling and pressing sleeve is buckled and pressed and formed, a supporting sleeve is arranged outside the buckling and pressing sleeve. The utility model discloses an adopt to withhold sleeve and support sleeve and reach restriction hose root deflection, prevent to withhold the bending radius that sleeve root hose is less than the minimum that the hose used and allows, still be rigid connection between hose and the support sleeve, take place the hose easily and drop the scheduling problem.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the easy fracture shortcoming of steel wire reinforcing hose nipple department among the prior art, provide a steel wire reinforcing hydraulic pressure rubber hose.

In order to solve the technical problem, the utility model discloses a following technical scheme can solve:

a steel wire reinforced hydraulic rubber hose comprises a hose body, a sleeve and a connector, wherein the hose body is sleeved at the end part of the connector, the hose body is fixed at the joint of the connector by the sleeve, the connector is fixed at the end part of the connector, the connector is clamped into the hose body, and the sleeve is sleeved at the end part of the hose body and presses the hose body on the connector; still include metal collapsible tube and transition pipe, metal collapsible tube, transition pipe all overlap and establish on the body, and the one end and the metal collapsible tube of transition pipe are fixed, and the other end is fixed with the sleeve pipe, are equipped with first packing ring between metal collapsible tube and the body, all are equipped with the clamp on metal collapsible tube and the sleeve pipe. Be equipped with metal collapsible tube and transition pipe between body and the connector, metal collapsible tube can cooperate the body to carry out the bending, can guarantee simultaneously that body bending radius can not the undersize, plays the effect of supporting with the protection hose, and rethread transition pipe guarantees that the body of connector department can not take place to buckle and arouse the body to drop or leak, has guaranteed steel wire reinforcing hydraulic rubber hose's practicality.

Preferably, the outer wall of the joint and the inner wall of the sleeve are both provided with a plurality of friction blocks. When the sleeve pipe blocks the pipe body on the joint, the friction block can extrude the pipe body, so that the reinforcing effect is achieved.

Preferably, the transition pipe is a flexible corrugated pipe. The transition pipe is used for reducing the influence of the metal hose on the connector due to the bending of the matching pipe body

Preferably, the connector is provided with a threaded hole for connecting other components, and the end of the threaded hole is provided with a second gasket. The connector is in threaded fit with other parts, and the second gasket at the end part can increase the tightness of connection.

Preferably, the pipe body comprises an inner glue layer, a first steel wire layer, a first glass fiber layer, a middle glue layer, a second steel wire layer, a second glass fiber layer and an outer glue layer from inside to outside in sequence. The inner rubber layer is made of oil-resistant and liquid-resistant rubber materials, the outer rubber layer is made of weather-resistant rubber materials, the first steel wire layer and the second steel wire layer are grid steel wire layers, the middle rubber layer plays a role in transition, and meanwhile, the pipe wall can be thickened, so that the pipe body has good anti-explosion performance and flexibility and is not easy to break.

The utility model discloses owing to adopted above technical scheme, have apparent technological effect: be equipped with metal collapsible tube and transition pipe between body and the connector, metal collapsible tube can cooperate the body to carry out the bending, can guarantee simultaneously that body bending radius can not the undersize, plays the effect of supporting with the protection hose, and rethread transition pipe guarantees that the body of connector department can not take place to buckle and arouse the body to drop or leak, has guaranteed steel wire reinforcing hydraulic rubber hose's practicality.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural view of the utility model when the whole body is bent.

Fig. 3 is a schematic cross-sectional view of the tube.

The names of the parts indicated by the numerical references in the above figures are as follows: 10-pipe body, 11-sleeve pipe, 12-connector, 13-metal hose, 14-transition pipe, 15-first packing ring, 16-clamp, 17-second packing ring, 18-inner glue layer, 19-first steel wire layer, 20-first glass fiber layer, 21-middle glue layer, 22-second steel wire layer, 23-second glass fiber layer, 24-outer glue layer, 25-screw hole, 26-friction block, 27-joint.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Example 1

A steel wire reinforced hydraulic rubber hose is shown in figures 1 and 2 and comprises a hose body 10, a sleeve 11 and a connector 12, wherein the hose body 10 is sleeved at the end part of the connector 12, the hose body 10 is fixed at the joint of the connector 12 by the sleeve 11, the connector 27 is fixed at the end part of the connector 12, the connector 27 is clamped in the hose body 10, the sleeve 11 is sleeved at the end part of the hose body 10, and the hose body 10 is pressed on the connector 27; still include metal collapsible tube 13 and transition pipe 14, metal collapsible tube 13, transition pipe 14 all overlap on body 10, and one end and metal collapsible tube 13 of transition pipe 14 are fixed, and the other end is fixed with sleeve pipe 11, are equipped with first packing ring 15 between metal collapsible tube 13 and the body 10, all are equipped with clamp 16 on metal collapsible tube 13 and the sleeve pipe 11. A metal hose 13 and a transition pipe 14 are arranged between the pipe body 10 and the sleeve 11, the metal hose 13 can be matched with the pipe body 10 to bend, the bending radius of the pipe body 10 cannot be too small, and the pipe body 10 is supported and protected. The transition pipe 14 is a flexible corrugated pipe, and the transition pipe 14 functions to reduce the influence of the bending of the fitting pipe body 10 on the coupling head 12 of the metal hose 13. The clamp can strengthen the fixing effect of the joint. The clamp is a common hydraulic rubber hose clamp on the market.

The outer wall of the joint 27 and the inner wall of the casing 11 are provided with a plurality of friction blocks 26.

The connector 12 is provided with a threaded hole 25 for connecting other components, and the end of the threaded hole 25 is provided with a second gasket 17.

The pipe body 10 sequentially comprises an inner glue layer 18, a first steel wire layer 19, a first glass fiber layer 20, a middle glue layer 21, a second steel wire layer 22, a second glass fiber layer 23 and an outer glue layer 24 from inside to outside, as shown in fig. 3. The inner rubber layer is made of nitrile rubber, and the nitrile rubber has good oil resistance and aging resistance; the material of the outer rubber layer is ethylene propylene diene monomer rubber which has good ozone resistance, heat resistance, weather resistance and other aging resistance; the middle rubber layer is made of butadiene rubber, and the butadiene rubber is low in price and high in viscosity; the first steel wire layer 19 and the second steel wire layer 22 are grid steel wire layers, the first glass fiber layer 20 is wrapped on the first steel wire layer 19, the second glass fiber layer 23 is wrapped on the second steel wire layer 22, and the adhesive between the rubber and the metal is JL-499 150-degree high-temperature-resistant instant glue with high-strength impact-resistant and peeling-resistant capabilities.

Example 2

The embodiment 2 has substantially the same characteristics as the embodiment 1, except that a transparent protective layer is sleeved on the outer wall of the pipe body 10 exposed outside, and the transparent protective layer is a common plastic pipe in the market.

Example 3

Example 3 has substantially the same characteristics as example 1 except that a woven cotton net is used instead of the first and second glass fiber layers 20 and 23, and the woven cotton net is wrapped around the first and second steel wire layers 19 and 22, respectively. The cotton woven mesh has better softness and anti-explosion pressure compared with glass fiber. In short, the above description is only a preferred embodiment of the present invention, and all the equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the scope of the present invention.

Claims (5)

1. A steel wire reinforced hydraulic rubber hose comprises a hose body (10), a sleeve (11) and a connector (12), wherein the hose body (10) is sleeved at the end part of the connector (12), the sleeve (11) fixes the hose body (10) at the joint of the connector (12), and the steel wire reinforced hydraulic rubber hose is characterized in that a connector (27) is fixed at the end part of the connector (12), the connector (27) is clamped into the hose body (10), the sleeve (11) is sleeved at the end part of the hose body (10) and presses the hose body (10) on the connector (27); still include metal collapsible tube (13) and transition pipe (14), metal collapsible tube (13), transition pipe (14) are all established on body (10), and the one end and metal collapsible tube (13) of transition pipe (14) are fixed, and the other end is fixed with sleeve pipe (11), are equipped with first packing ring (15) between metal collapsible tube (13) and body (10), all are equipped with clamp (16) on metal collapsible tube (13) and sleeve pipe (11).

2. The steel wire reinforced hydraulic rubber hose according to claim 1, wherein: the outer wall of the joint (27) and the inner wall of the sleeve (11) are provided with a plurality of friction blocks (26).

3. The steel wire reinforced hydraulic rubber hose according to claim 1, wherein: the transition pipe (14) is a flexible corrugated pipe.

4. The steel wire reinforced hydraulic rubber hose according to claim 1, wherein: a threaded hole (25) is formed in the connector (12), and a second gasket (17) is arranged at the end of the threaded hole (25).

5. The steel wire reinforced hydraulic rubber hose according to claim 1, wherein: the pipe body (10) sequentially comprises an inner rubber layer (18), a first steel wire layer (19), a first glass fiber layer (20), a middle rubber layer (21), a second steel wire layer (22), a second glass fiber layer (23) and an outer rubber layer (24) from inside to outside.

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