Novel rotating joint special for servo power loading arm

Abstract

The utility model discloses a novel rotating joint special for a servo power crane pipe, which belongs to the technical field of crane pipe rotating joints, and comprises an outer sleeve, an inner sleeve, a rotary support and a servo driving mechanism, the rotary support comprises a first connecting part and a second connecting part, the first connecting part is fixedly connected with the outer sleeve, and the second connecting part is fixedly connected with the inner sleeve. The second connecting part is fixedly connected with the inner sleeve, the servo driving mechanism comprises a servo motor, a worm, a worm gear, a bevel gear and a helical gear ring, the servo motor is fixedly installed on the side wall of the first connecting part, the worm is fixedly installed on an output shaft of the servo motor, the worm gear is meshed with the worm, and the bevel gear is meshed with the bevel gear ring. The bevel gear is rotationally mounted in the first connecting part and is coaxially fixed with the worm gear; the helical gear ring is fixedly connected to the second connecting part and is meshed with the bevel gear; and by arranging the rotary support and the servo driving mechanism, automatic rotation of the rotary joint can be realized, manual operation is avoided, the labor intensity is reduced, and the safety coefficient is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of swivel joints for loading arms, and particularly relates to a new type of swivel joint for a servo-powered loading arm. Background Art

[0002] A loading arm is a telescopic pipe, which is mostly used for liquid loading and unloading at oil and chemical terminals, and the media in the pipe are such as oil, water, etc. It is divided into various types and has the advantages of high safety and flexibility compared with the old-fashioned hose.

[0003] The rotation of the loading arm requires the use of a special swivel joint for the loading arm. The existing special swivel joint for the loading arm needs to be rotated manually, which is time-consuming and laborious and increases the labor intensity. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a new type of swivel joint for a servo-powered loading arm to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A new type of swivel joint for a servo-powered loading arm, including an outer sleeve, an inner sleeve, a slewing bearing and a servo drive mechanism. The outer sleeve is rotatably sleeved outside the inner sleeve. The servo drive mechanism is arranged on the slewing bearing. The slewing bearing includes a first connecting portion and a second connecting portion. The first connecting portion is fixedly connected with the outer sleeve, and the second connecting portion is fixedly connected with the inner sleeve;

[0006] The servo drive mechanism includes a servo motor, a worm, a worm gear, a bevel gear and a helical gear ring. The servo motor is fixedly installed on the side wall of the first connecting portion. The worm is fixedly installed on the output shaft of the servo motor. The worm gear is rotatably installed in the first connecting portion and meshes with the worm. The bevel gear is rotatably installed in the first connecting portion and is coaxially fixed with the worm gear. The helical gear ring is fixedly connected to the second connecting portion and meshes with the bevel gear.

[0007] As a preferred embodiment, a first flange is provided on the outer sleeve, and the first flange is fixedly installed with the first connecting portion through bolts.

[0008] As a preferred embodiment, a second flange is provided on the inner sleeve, and the second flange is fixedly installed with the second connecting portion through bolts.

[0009] As a preferred embodiment, a sealing ring is abutted between the inner wall of the outer sleeve and the outer wall of the inner sleeve, and the sealing ring is a fluororubber ring.

[0010] As a preferred embodiment, steel balls are rotatably connected between the inner wall of the outer sleeve and the outer wall of the inner sleeve.

[0011] As a preferred embodiment, a T-shaped sliding ring is provided on the side of the helical gear ring away from the bevel gear, and the T-shaped sliding ring is embedded and slides in the first connecting portion.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] For this new type of special rotary joint for servo-powered loading arm, by setting the slewing bearing and the servo drive mechanism, during rotation, the servo motor can be started to drive the worm to rotate, the worm drives the worm gear to rotate, the worm gear drives the bevel gear to rotate, the bevel gear drives the helical gear ring to rotate, the helical gear ring drives the second connecting portion to rotate, and the second connecting portion drives the inner sleeve to rotate, so that the automatic rotation of the rotary joint can be realized, manual operation is eliminated, the labor intensity is reduced, and the safety factor is improved;

[0014] For this new type of special rotary joint for servo-powered loading arm, by setting the sealing ring, the sealing performance between the inner wall of the outer sleeve and the outer wall of the inner sleeve can be improved. By setting the steel balls, the rotational friction between the inner wall of the outer sleeve and the outer wall of the inner sleeve can be reduced, making the rotation more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is a schematic diagram of the side sectional structure of the present utility model;

[0017] Figure 3 For the present utility model Figure 2 is an enlarged view of the structure at A in

[0018] In the figure: 1. Outer sleeve; 11. First flange; 2. Inner sleeve; 21. Second flange; 3. Slewing bearing; 31. First connecting portion; 32. Second connecting portion; 4. Servo drive mechanism; 41. Servo motor; 42. Worm; 43. Worm gear; 44. Bevel gear; 45. Helical gear ring; 46. T-shaped sliding ring; 5. Sealing ring; 6. Steel balls. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following describes the present utility model in further detail with reference to the embodiments.

[0020] The following embodiments are used to illustrate the present utility model, but cannot be used to limit the protection scope of the present utility model. The conditions in the embodiments can be further adjusted according to specific conditions. Any simple improvement of the method of the present utility model under the premise of the concept of the present utility model belongs to the protection scope required by the present utility model.

[0021] Please refer to Figures 1-3, the present utility model provides a novel rotary joint for a special servo-powered loading arm, which includes an outer sleeve 1, an inner sleeve 2, a slewing bearing 3 and a servo drive mechanism 4. The outer sleeve 1 is rotatably sleeved outside the inner sleeve 2. A sealing ring 5 is abutted between the inner wall of the outer sleeve 1 and the outer wall of the inner sleeve 2. The sealing ring 5 is a fluororubber ring. By setting the sealing ring 5, the sealing performance between the inner wall of the outer sleeve 1 and the outer wall of the inner sleeve 2 can be improved. Steel balls 6 are rotatably connected between the inner wall of the outer sleeve 1 and the outer wall of the inner sleeve 2. By setting the steel balls 6, the rotational friction between the inner wall of the outer sleeve 1 and the outer wall of the inner sleeve 2 can be reduced, making the rotation more stable.

[0022] Referring to Figure 2 and Figure 3 , the slewing bearing 3 includes a first connecting portion 31 and a second connecting portion 32. A first flange 11 is provided on the outer sleeve 1, and the first flange 11 is fixedly installed with the first connecting portion 31 through bolts. A second flange 21 is provided on the inner sleeve 2, and the second flange 21 is fixedly installed with the second connecting portion 32 through bolts. The servo drive mechanism 4 includes a servo motor 41, a worm 42, a worm gear 43, a bevel gear 44 and a helical ring 45. The servo motor 41 is fixedly installed on the side wall of the first connecting portion 31. The worm 42 is fixedly installed on the output shaft of the servo motor 41. The worm gear 43 is rotatably installed in the first connecting portion 31 and meshes with the worm 42. The bevel gear 44 is rotatably installed in the first connecting portion 31 and is coaxially fixed with the worm gear 43. A cavity is formed in the first connecting portion 31, and a rotating shaft is rotatably installed in the cavity. The worm gear 43 and the bevel gear 44 are jointly fixed on a rotating shaft. The helical ring 45 is fixedly connected to the second connecting portion 32 and meshes with the bevel gear 44. By setting the slewing bearing 3 and the servo drive mechanism 4, during rotation, the servo motor 41 can be started to drive the worm 42 to rotate, so that the worm 42 drives the worm gear 43 to rotate, the worm gear 43 drives the bevel gear 44 to rotate, the bevel gear 44 drives the helical ring 45 to rotate, the helical ring 45 drives the second connecting portion 32 to rotate, and the second connecting portion 32 drives the inner sleeve 2 to rotate, thereby realizing the automatic rotation of the rotary joint, eliminating manual operation, reducing labor intensity and improving safety factor.

[0023] Furthermore, referring to Figure 3 , a T-shaped sliding ring 46 is provided on the side of the helical ring 45 away from the bevel gear 44. The T-shaped sliding ring 46 is embedded and slid in the first connecting portion 31. By setting the T-shaped sliding ring 46, a guiding and limiting effect can be exerted on the helical ring 45, and the stability of the helical ring 45 during rotation can be improved.

[0024] Working principle and usage process of the utility model: First, by setting the slewing bearing 3 and the servo drive mechanism 4, when rotating, the servo motor 41 can be started to drive the worm 42 to rotate, the worm 42 drives the worm wheel 43 to rotate, the worm wheel 43 drives the bevel gear 44 to rotate, the bevel gear 44 drives the helical ring 45 to rotate, the helical ring 45 drives the second connecting part 32 to rotate, and the second connecting part 32 drives the inner sleeve 2 to rotate, thereby realizing the automatic rotation of the rotary joint, eliminating manual operation, reducing labor intensity, and increasing the safety factor.

[0025] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A special rotary joint for a new type of servo-powered loading arm, comprising an outer sleeve (1), an inner sleeve (2), a slewing bearing (3) and a servo drive mechanism (4), characterized in that: The outer sleeve (1) is rotatably sleeved outside the inner sleeve (2). The servo drive mechanism (4) is arranged on the slewing bearing (3). The slewing bearing (3) includes a first connecting portion (31) and a second connecting portion (32). The first connecting portion (31) is fixedly connected to the outer sleeve (1), and the second connecting portion (32) is fixedly connected to the inner sleeve (2). The servo drive mechanism (4) includes a servo motor (41), a worm (42), a worm gear (43), a bevel gear (44), and a helical gear ring (45). The servo motor (41) is fixedly installed on the side wall of the first connecting portion (31). The worm (42) is fixedly installed on the output shaft of the servo motor (41). The worm gear (43) is rotatably installed in the first connecting portion (31) and meshes with the worm (42). The bevel gear (44) is rotatably installed in the first connecting portion (31) and is coaxially fixed to the worm gear (43). The helical gear ring (45) is fixedly connected to the second connecting portion (32) and meshes with the bevel gear (44).

2. The special rotary joint for a new type of servo-powered articulated loading arm according to claim 1, characterized in that: A first flange (11) is provided on the outer sleeve (1). The first flange (11) is fixedly installed on the first connecting portion (31) by bolts.

3. A special rotary joint for a new type of servo-powered loading arm according to claim 1, characterized in that: A second flange (21) is provided on the inner sleeve (2). The second flange (21) is fixedly installed on the second connecting portion (32) by bolts.

4. A special rotary joint for a new type of servo-powered loading arm according to claim 1, characterized in that: A sealing ring (5), which is a fluororubber ring, is abutted between the inner wall of the outer sleeve (1) and the outer wall of the inner sleeve (2).

5. A special rotary joint for a new type of servo-powered loading arm according to claim 1, characterized in that: Steel balls (6) are rollingly connected between the inner wall of the outer sleeve (1) and the outer wall of the inner sleeve (2).

6. A special rotary joint for a new type of servo-powered loading arm according to claim 1, characterized in that: A T-shaped sliding ring (46) is provided on the side of the helical gear ring (45) away from the bevel gear (44). The T-shaped sliding ring (46) is embedded and slides in the first connecting portion (31).

Images