CN211423638U

CN211423638U - Fire engine hydraulic system center swivel joint

Info

Publication number: CN211423638U
Application number: CN201921828318.3U
Authority: CN
Inventors: 左学俊
Original assignee: Jianhu Tejia Hydraulic Pipe Fittings Co ltd
Current assignee: Jianhu Tejia Hydraulic Pipe Fittings Co ltd
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-09-04
Anticipated expiration: 2029-10-29

Abstract

The utility model discloses a fire engine hydraulic system center swivel joint, including the installation shell, the inside bottom fixed mounting of installation shell has the takeover, defeated oil pipe's bottom internal weld has the baffle, the inboard of takeover ring dish is connected with the connecting rod, the upper surface and the lower surface of baffle are all pasted and are connected with the closing plate, the ring rail has been seted up to the inner of installation shell, defeated oil pipe's top lateral surface is pasted and is had the dust guard, the top integral type of outer bushing is connected with the cavity rotation axis, and the top of cavity rotation axis has seted up out oil pipe to the lateral surface fixedly connected with flange of cavity rotation axis. This fire engine hydraulic system center swivel joint, stable in structure prevents the oil leak, utilizes the temperature that utilizes copper radiating ring and hourglass board to reduce oil, avoids the too high injury machinery of oil temperature, avoids the dust to fall into the inside of installation shell through the sealed effect of dust guard.

Description

Fire engine hydraulic system center swivel joint

Technical Field

The utility model relates to a central swivel joint technical field specifically is a fire engine hydraulic system center swivel joint.

Background

The center rotary joint of the hydraulic system connects a hydraulic fixed part of the hydraulic machine with an oil way corresponding to a hydraulic rotating part, and conveys hydraulic oil to the rotating part, is mainly used in high-altitude operation machines such as excavators, cranes, fire trucks and the like, and provides various center rotary joints in the market for transferring various media.

Chinese utility model patent that the bulletin number is CN206786203U discloses a many agents ally oneself with uses rotary joint, can regard as the important part that the class of elevating fire engine gets on or off the bus and connect, when 360 gyrations are realized to the revolving stage, can transmit multiple media such as hydraulic oil, fire prevention liquid, dry powder, but the structure is unstable, be not convenient for reduce oily temperature, too high oil temperature can harm machinery, the dust easily gets into in the installation shell, consequently, we propose a fire engine hydraulic system center rotary joint, in order to solve the problem that proposes in the aforesaid.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fire engine hydraulic system center swivel joint to current unstable structure who proposes in solving above-mentioned background art, the temperature of the reduction oil of being not convenient for, too high oil temperature can injure machinery, and the dust easily gets into the problem in the installation shell.

In order to achieve the above object, the utility model provides a following technical scheme: a center swivel joint of a fire engine hydraulic system comprises an installation shell, wherein a receiving pipe is fixedly installed at the bottom end inside the installation shell, an oil delivery pipe is arranged above the receiving pipe, a partition plate is welded inside the bottom end of the oil delivery pipe, a receiving ring disc is fixedly arranged on the outer side surface of the bottom end of the oil delivery pipe and the outer side surface of the top end of the receiving pipe, a connecting rod is connected to the inner side of the receiving ring disc, a delivery pipe is fixedly arranged on the inner side of the connecting rod, sealing plates are pasted and connected to the upper surface and the lower surface of the partition plate, a ring rail is arranged at the inner end of the installation shell, connecting beads are embedded and installed on the inner side of the ring rail, a dustproof plate is pasted on the outer side surface of the top end of the oil delivery pipe, an outer leakage plate is integrally connected to the top end of the oil delivery pipe, and the top end of the hollow rotating shaft is provided with an oil outlet pipe, and the outer side surface of the hollow rotating shaft is fixedly connected with a flange.

Preferably, the diameter size of the adapting pipe is smaller than the inner diameter size of the mounting shell, and the outer side surface of the adapting pipe is flush with the outer side surface of the oil delivery pipe.

Preferably, the longitudinal section of the conveying pipe is of an L-shaped structure, and the top end of the conveying pipe penetrates through the partition plate.

Preferably, the connecting beads are arranged on the outer side surface of the oil delivery pipe at equal angles, and the oil delivery pipe and the mounting shell form a rotating structure through the connecting beads.

Preferably, the thickness of the outer leakage plate is smaller than that of the oil conveying pipe, and the inner side face of the copper heat dissipation ring is tightly attached to the outer side face of the outer leakage plate.

Preferably, the connection mode of the dust guard and the installation shell is clamping connection, and the longitudinal section of the dust guard is in a convex structure.

Compared with the prior art, the beneficial effects of the utility model are that: the central rotary joint of the fire fighting truck hydraulic system has a stable structure, prevents oil leakage, reduces the temperature of oil by using the copper heat dissipation ring and the outer leakage plate, avoids damaging machinery due to overhigh oil temperature, and avoids dust from falling into the mounting shell under the sealing action of the dust guard;

1. the oil conveying pipe is provided with an installation shell, an oil conveying pipe, a receiving ring disc, a connecting rod, a conveying pipe and a connecting ball, when the oil conveying pipe rotates in the installation shell, the connecting ball rotates in a ring rail, the receiving ring disc on the outer side of the conveying pipe rotates relative to the connecting rod, the connecting ball and the connecting rod are utilized to improve the rotation stability of the oil conveying pipe, so that the structure is stable, the conveying pipe is utilized to directly convey oil to the inside of the oil conveying pipe, and the oil conveying efficiency is improved;

2. the oil pipe, the outer leakage plate and the copper heat dissipation ring are arranged, when oil flows on the inner side of the oil pipe, the inner side face of the copper heat dissipation ring is tightly attached to the outer side face of the outer leakage plate, the thickness of the outer leakage plate is smaller than that of the outer leakage plate, heat conduction efficiency is improved, heat dissipation is facilitated by the copper heat dissipation ring and the outer leakage plate, and the temperature of the oil is reduced;

3. be provided with installation shell, defeated oil pipe and dust guard, defeated oil pipe is when the inboard of installation shell is rotatory, and the dust guard is rotatory on the top of installation shell, utilizes the dust guard to cover the gap department of installation shell and defeated oil pipe, avoids the dust to fall into the inside of installation shell.

Drawings

FIG. 1 is a front view of the cutting structure of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A of FIG. 1 according to the present invention;

FIG. 3 is a schematic view of the connection structure between the outer bushing and the copper heat dissipation ring of the present invention;

FIG. 4 is a schematic view of the connection structure of the oil pipe and the connecting bead according to the present invention;

fig. 5 is a schematic view of the front view structure of the dust guard of the present invention.

In the figure: 1. installing a shell; 2. a bearing pipe; 3. an oil delivery pipe; 4. a partition plate; 5. a receiving ring plate; 6. A connecting rod; 7. a delivery pipe; 8. a sealing plate; 9. a connecting bead; 10. a circular rail; 11. an outer bushing; 12. A dust-proof plate; 13. a copper heat dissipation ring; 14. a hollow rotating shaft; 15. an oil outlet pipe; 16. and (4) a flange.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a fire engine hydraulic system center swivel joint comprises an installation shell 1, a bearing pipe 2, an oil delivery pipe 3, a partition plate 4, a bearing ring disc 5, a connecting rod 6, a delivery pipe 7, a sealing plate 8, a connecting bead 9, a ring rail 10, an outer bushing 11, a dust guard 12, a copper heat dissipation ring 13, a hollow rotating shaft 14, an oil outlet pipe 15 and a flange 16, wherein the bearing pipe 2 is fixedly installed at the bottom end inside the installation shell 1, the oil delivery pipe 3 is arranged above the bearing pipe 2, the partition plate 4 is welded inside the bottom end of the oil delivery pipe 3, the bearing ring disc 5 is fixed on the outer side surface of the bottom end of the oil delivery pipe 3 and the outer side surface of the top end of the bearing pipe 2, the connecting rod 6 is connected to the inner side of the bearing ring disc 5, the delivery pipe 7 is fixed to the inner side of the connecting rod 6, the sealing plate 8 is adhered to the upper surface and the lower surface of the partition plate 4, the ring rail, a dust guard 12 is adhered to the outer side surface of the top end of the oil delivery pipe 3, the top end of the oil delivery pipe 3 is integrally connected with an outer bushing 11, a copper radiating ring 13 is arranged on the outer side of the outer bushing 11, the top end of the outer bushing 11 is integrally connected with a hollow rotating shaft 14, an oil outlet pipe 15 is arranged at the top end of the hollow rotating shaft 14, and a flange 16 is fixedly connected to the outer side surface of the hollow rotating shaft 14;

as shown in fig. 1, 2 and 4, the diameter of the receiving pipe 2 is smaller than the inner diameter of the mounting housing 1, and the outer side surface of the receiving pipe 2 is flush with the outer side surface of the oil delivery pipe 3, so that the receiving pipe 2 is aligned with the oil delivery pipe 3, and the receiving ring disc 5 on the receiving pipe 2 is aligned with the receiving ring disc 5 on the oil delivery pipe 3, so that the receiving ring disc 5 stably rotates outside the connecting rod 6, the longitudinal section of the delivery pipe 7 is in an L-shaped structure, the top end of the delivery pipe 7 penetrates through the inside of the partition plate 4, oil is directly delivered to the oil delivery pipe 3 by the delivery pipe 7, oil leakage is avoided, the connecting beads 9 are arranged on the outer side surface of the oil delivery pipe 3 at equal angles, the oil delivery pipe 3 and the mounting housing 1 form a rotating structure by the connecting beads 9, and the oil delivery pipe 3 is supported;

as in fig. 1, 3 and 5, the thickness of the outer bushing 11 is smaller than that of the oil delivery pipe 3, the inner side surface of the copper heat dissipation ring 13 is tightly attached to the outer side surface of the outer bushing 11, so that heat dissipation is facilitated, the temperature of oil is reduced, the connection mode of the dust guard 12 and the installation shell 1 is clamping connection, the longitudinal section of the dust guard 12 is in a convex structure, and dust is prevented from entering the installation shell 1 by the dust guard 12.

The working principle is as follows: when the central swivel joint of the hydraulic system of the fire fighting truck is used, firstly, a pipe inside the hydraulic system on the fire fighting truck is in threaded connection with a delivery pipe 7 in a figure 1, then a mounting plate fixed at the outer end of a mounting shell 1 is fixed on the fire fighting truck through screws, then a flange 16 is connected with a workpiece needing to rotate inside the fire fighting truck, when oil needs to be delivered, oil inside the hydraulic system is delivered to the inside of an oil delivery pipe 3 through the delivery pipe 7 with an L-shaped longitudinal section, the whole formed by combining the oil delivery pipe 3, an outer leakage plate 11 and a hollow rotating shaft 14 rotates on the inner side of the mounting shell 1, a connecting bead 9 on the outer side of the oil delivery pipe 3 rotates on the inner side of a ring rail 10, a bearing ring disc 5 on the outer side face of the bottom end of the oil delivery pipe 3 in a figure 2 rotates relative to a connecting rod 6, and the;

in the flowing process of oil, the heat inside the oil is dissipated to the outside through the outer leakage plate 11 and the copper heat dissipation ring 13 to reduce the temperature of the oil, the cross section of the bottom end of the dust guard 12 is of an annular structure, the bottom end of the dust guard 12 is clamped into the top end of the installation shell 1, when the oil delivery pipe 3 rotates, the dust guard 12 rotates at the top end of the installation shell 1 to prevent external dust from entering a gap between the oil delivery pipe 3 and the installation shell 1, so that a series of operations of the center swivel joint of the hydraulic system of the fire fighting truck are completed, and the content which is not described in detail in the description belongs to the prior art which is well known by professionals in the field.

The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt prior art, and conventional model, including circuit connection adopts conventional connection mode among the prior art, does not detailed here again.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a fire engine hydraulic system center swivel joint, includes installation shell (1), its characterized in that: the mounting structure is characterized in that a bearing pipe (2) is fixedly mounted at the bottom end inside the mounting shell (1), an oil delivery pipe (3) is arranged above the bearing pipe (2), a partition plate (4) is welded inside the bottom end of the oil delivery pipe (3), a bearing ring disc (5) is fixed on the outer side surface of the bottom end of the oil delivery pipe (3) and the outer side surface of the top end of the bearing pipe (2), a connecting rod (6) is connected to the inner side of the bearing ring disc (5), a conveying pipe (7) is fixed on the inner side of the connecting rod (6), sealing plates (8) are pasted and connected to the upper surface and the lower surface of the partition plate (4), a ring rail (10) is arranged at the inner end of the mounting shell (1), connecting beads (9) are embedded in the inner side of the ring rail (10), a dust-proof plate (12) is pasted on the outer side surface of the top end of the oil, and the outside of outer bushing (11) is provided with copper heat dissipation circle (13), the top integral type of outer bushing (11) is connected with cavity rotation axis (14), and the top of cavity rotation axis (14) has seted up oil pipe (15) to the lateral surface fixedly connected with flange (16) of cavity rotation axis (14).

2. The fire fighting truck hydraulic system center swivel joint of claim 1, wherein: the diameter size of the adapting pipe (2) is smaller than the inner diameter size of the mounting shell (1), and the outer side surface of the adapting pipe (2) is flush with the outer side surface of the oil delivery pipe (3).

3. The fire fighting truck hydraulic system center swivel joint of claim 1, wherein: the longitudinal section of the conveying pipe (7) is of an L-shaped structure, and the top end of the conveying pipe (7) penetrates through the inside of the partition plate (4).

4. The fire fighting truck hydraulic system center swivel joint of claim 1, wherein: the connecting beads (9) are arranged on the outer side surface of the oil delivery pipe (3) at equal angles, and the oil delivery pipe (3) and the mounting shell (1) form a rotating structure through the connecting beads (9).

5. The fire fighting truck hydraulic system center swivel joint of claim 1, wherein: the thickness of the outer leakage plate (11) is smaller than that of the oil conveying pipe (3), and the inner side face of the copper heat dissipation ring (13) is tightly attached to the outer side face of the outer leakage plate (11).

6. The fire fighting truck hydraulic system center swivel joint of claim 1, wherein: the connection mode of the dust guard (12) and the installation shell (1) is clamping connection, and the longitudinal section of the dust guard (12) is of a convex structure.