Novel intelligent crane pipe rotating joint

Abstract

The invention relates to the technical field of crane pipes, and particularly discloses a novel intelligent crane pipe rotating joint which comprises an outer ring, a worm shell and an inner ring, the worm shell is arranged on the peripheral side of the outer ring, the worm shell and the outer ring are integrated, the inner ring is installed in the outer ring, the inner ring and the outer ring are concentrically arranged, one end of the outer ring is connected with a second flange plate, and the other end of the outer ring is connected with a second flange plate. One end of the inner ring is connected with a first flange plate, a worm gear is machined on the peripheral side of the middle of the inner ring, a worm is installed in the worm shell, and the worm is connected with the worm gear in a meshed mode. The novel rotary joint adopts an integral structure which is integrated with the worm gear and the worm, so that the traditional mounting mode of fixing the worm gear and welding the bracket and the worm by screws is cancelled, the assembly steps are reduced, and the production efficiency is improved by about 15-20%; as the assembly tolerance and the number of parts are reduced, the product quality is more stable, the rotating precision is higher, meanwhile, the structure is compact, portable and small, and the intelligent crane pipe is more attractive when used.

Description

Technical Field

[0001] The invention relates to the technical field of crane pipes, and in particular to a novel intelligent crane pipe rotary joint. Background Art

[0002] In liquid loading and unloading operations, the intelligent crane pipe rotary joint is one of the key components and is widely used in the fields of chemical, petroleum and liquid transportation. The device not only undertakes the connection and support functions of fluid transportation, but also needs to have high precision, stability and intelligent control capabilities. However, the existing intelligent crane pipe rotary joints still have many technical problems and shortcomings in practical applications.

[0003] In the prior art, the traditional structure of the crane pipe rotary joint usually adopts the method of installing an integral worm gear on the outer diameter of the rotary joint flange cover and fixing it with screws, while welding a bracket to install the worm gear next to the rotary joint to achieve the matching of the worm gear and worm gear. This design has the following problems and shortcomings:

[0004] ① Complex structure: The traditional installation method requires the combination of multiple parts, and the assembly and maintenance are relatively cumbersome.

[0005] ②Heavy weight: Due to the use of multiple components, the overall weight is heavy, which is not conducive to lightweight design.

[0006] ③ Limited precision: The screw connection method may cause slight displacement at the connection point, thus affecting the rotation accuracy.

[0007] ④ Limited applicability: The existing structure has poor adaptability in automation applications and is difficult to meet intelligent requirements.

[0008] In order to solve the above problems, the present invention provides a novel intelligent crane pipe rotary joint. Summary of the invention

[0009] The purpose of the present invention is to provide a novel intelligent crane pipe rotary joint to solve the problems raised by the above-mentioned background technology in view of the defects of the prior art.

[0010] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a novel intelligent crane pipe rotary joint, comprising an outer ring, a worm housing and an inner ring, wherein the worm housing is arranged on the peripheral side of the outer ring, the worm housing and the outer ring are integrated, the inner ring is arranged inside the outer ring, the inner ring and the outer ring are arranged concentrically, one end of the outer ring is connected to a second flange, one end of the inner ring is connected to a first flange, a worm wheel is processed on the outer peripheral side of the middle part of the inner ring, a worm is arranged inside the worm housing, the worm is meshed with the worm wheel, and two semi-arc steel ball grooves A and an O-ring are arranged on the inner ring;

[0011] Two semi-arc steel ball grooves B are arranged on the inner wall of the outer ring. When the outer ring is sleeved on the inner ring, the two semi-arc steel ball grooves B fit with the two semi-arc steel ball grooves A to form two steel ball raceways for storing steel balls. The inner ring rotates relative to the outer ring through the steel balls.

[0012] A motor for driving the worm to rotate is installed at one end of the worm housing, and a bearing is installed at the other end of the worm housing.

[0013] As a preferred technical solution of the present invention, the output shaft of the motor is connected to the worm through a coupling, and one end of the worm is connected to a bearing.

[0014] As a preferred technical solution of the present invention, a sealing gasket is provided between the second flange at the top of the outer ring and the third flange welded to the pipeline, and the second flange and the third flange are fixedly connected by bolts.

[0015] As a preferred technical solution of the present invention, the O-ring arranged on the inner ring is fitted with the inner wall of the outer ring, and the O-ring is arranged on both sides of the semi-arc steel ball groove A to prevent dust from entering the steel ball raceway.

[0016] As a preferred technical solution of the present invention, two steel ball insertion holes are arranged on the outer wall of the outer ring, and the steel ball insertion holes are connected with the steel ball raceway, and are used for inserting the steel balls into the steel ball raceway through the steel ball insertion holes. The steel ball insertion holes are threaded holes, and bolts are threadedly connected to the steel ball insertion holes, which are used to prevent the steel balls in the steel ball raceway from being discharged from the steel ball insertion holes.

[0017] As a preferred technical solution of the present invention, the motor is electrically connected to the PLC control box, and the outer ring and the worm housing are integrally formed by mold casting.

[0018] As a preferred technical solution of the present invention, the outer ring is integrated with the second flange, and the inner ring is integrated with the first flange, and both are integrally formed by die forging.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] ① Improved production efficiency and quality, simplified assembly process: This rotary joint adopts an integral structure, cancels the traditional installation method of screw-fixed worm gear and welded bracket worm, reduces assembly steps, and improves production efficiency by about 15%-20%;

[0021] Improve product consistency: Due to the reduction of assembly tolerances and the number of parts, the product quality is more stable and the rotation accuracy is higher.

[0022] ② Improved rotation accuracy and operation stability, higher rotation accuracy: By optimizing the internal structure of the rotary joint, the worm gear and worm gear have a higher matching accuracy, which improves its rotation accuracy and can meet the needs of high-precision operations;

[0023] ③ Weight reduction, saving energy and raw materials, overall design weight reduction: the screws and external bracket worm are eliminated; the structure is compact, light and small, and it is more beautiful when used on the intelligent crane pipe.

[0024] ④ Suitable for intelligent systems to improve the degree of automation; strong compatibility: This rotary joint can achieve automatic control without additional modification, thereby improving the level of industrial automation.

[0025] ⑤Easy maintenance and reduced operation and maintenance costs: The intelligent rotating joint has flange connections at both ends, which is easy to disassemble and replace, reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is one of the structural schematic diagrams of the present invention;

[0027] Figure 2 This is the second structural schematic diagram of the present invention;

[0028] Figure 3 This is the third structural schematic diagram of the present invention;

[0029] Figure 4 This is one of the schematic diagrams of the inner tube structure of the present invention;

[0030] Figure 5 This is the second schematic diagram of the inner tube structure of the present invention;

[0031] Figure 6 It is a schematic diagram of the cross-sectional structure of the outer ring of the present invention.

[0032] In the figure: 1. outer ring; 2. worm housing; 3. inner ring; 4. first flange; 5. second flange; 6. sealing gasket; 7. bearing; 8. third flange; 9. motor; 10. steel ball insertion hole; 11. steel ball; 31. worm; 32. worm wheel; 33. O-ring; 34. semi-arc steel ball groove A; 35. semi-arc steel ball groove B. DETAILED DESCRIPTION

[0033] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0034] Example: See Figure 1-5The present invention provides a technical solution: a novel intelligent crane pipe rotary joint, comprising an outer ring 1, a worm housing 2 and an inner ring 3, the worm housing 2 is arranged on the peripheral side of the outer ring 1, the worm housing 2 and the outer ring 1 are integrated, the inner ring 3 is arranged inside the outer ring 1, the inner ring 3 and the outer ring 1 are arranged concentrically, one end of the outer ring 1 is connected to a second flange 5, one end of the inner ring 3 is connected to a first flange 4, a worm wheel 32 is processed on the outer peripheral side of the middle part of the inner ring 3, a worm 31 is arranged inside the worm housing 2, the worm 31 is meshed and connected with the worm wheel 32, and two semi-arc steel ball grooves A34 and an O-ring 33 are arranged on the inner ring 3;

[0035] like Figure 6 As shown, two semi-arc steel ball grooves B35 are provided on the inner wall of the outer ring 1. When the outer ring 1 is sleeved on the inner ring 3, the two semi-arc steel ball grooves B35 and the two semi-arc steel ball grooves A34 fit together to form two steel ball raceways for storing steel balls 11. The inner ring 3 rotates relative to the outer ring 1 through the steel balls 11.

[0036] like Figure 1-3 As shown, a motor 9 for driving the worm 31 to rotate is installed at one end of the worm housing 2, and a bearing 7 is installed at the other end of the worm housing 2.

[0037] The output shaft of the motor 9 is connected to the worm 31 via a coupling, and one end of the worm 31 is connected to the bearing 7 .

[0038] like Figure 1-3 As shown, a sealing gasket 6 is arranged between the second flange 5 at the top of the outer ring 1 and the third flange 8 welded to the pipeline, and the second flange 5 and the third flange 8 are fixedly connected by bolts.

[0039] like Figure 4-6 As shown, the O-ring 33 arranged on the inner ring 3 is in contact with the inner wall of the outer ring 1, and the O-ring 33 is arranged on both sides of the semi-arc steel ball groove A34 to prevent dust from entering the steel ball raceway.

[0040] like Figure 1 and Figure 3 As shown, two steel ball insertion holes 10 are arranged on the outer wall of the outer ring 1, and the steel ball insertion holes 10 are connected with the steel ball raceway, and are used for inserting the steel balls into the steel ball raceway through the steel ball insertion holes 10. The steel ball insertion holes 10 are threaded holes, and bolts are threadedly connected on the steel ball insertion holes 10, which are used to prevent the steel balls in the steel ball raceway from being discharged from the steel ball insertion holes 10.

[0041] The motor 9 is electrically connected to the PLC control box. The outer ring 1 and the worm housing 2 are integrally formed by mold casting. The PLC control box is used to control the motor 9 to power on and work.

[0042] The outer ring 1 and the second flange 5 are integrated, and the inner ring 3 and the first flange 4 are integrated, and both are integrally formed by die forging.

[0043] Working principle: A new type of intelligent crane pipe rotary joint. When in use, the motor 9 works to drive the worm 31 to rotate, and the rotation of the worm 31 drives the worm wheel 32 to rotate. The rotation of the worm wheel 32 drives the inner ring 3 and the outer ring 1 to rotate relative to each other. The outer ring 1 and the inner ring 3 are connected by the steel balls in the steel ball raceway. When the inner ring 3 rotates, the steel balls play a rolling role, which makes the inner ring 3 rotate more stably. An O-ring 33 is provided on the inner ring 3 to prevent dust from entering the steel ball raceway. The second flange 5 on the top of the outer ring 1 is sealed and connected to the third flange 8 through the sealing gasket 6. When the inner ring 3 rotates, the liquid will not leak.

[0044] The above embodiments only express the implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

Claims

1. A novel intelligent crane pipe rotary joint, comprising an outer ring (1), a worm housing (2) and an inner ring (3), characterized in that: The worm housing (2) is arranged on the circumferential side of the outer ring (1), the worm housing (2) and the outer ring (1) are integrated, the inner ring (3) is arranged inside the outer ring (1), the inner ring (3) and the outer ring (1) are arranged concentrically, one end of the outer ring (1) is connected to a second flange (5), one end of the inner ring (3) is connected to a first flange (4), a worm wheel (32) is processed on the middle outer circumference of the inner ring (3), a worm (31) is arranged inside the worm housing (2), the worm (31) is meshed with the worm wheel (32), and two semi-arc steel ball grooves A (34) and an O-ring (33) are arranged on the inner ring (3); Two semi-arc-shaped steel ball grooves B (35) are arranged on the inner wall of the outer ring (1). When the outer ring (1) is sleeved on the inner ring (3), the two semi-arc-shaped steel ball grooves B (35) and the two semi-arc-shaped steel ball grooves A (34) fit together to form two steel ball raceways for storing the steel balls (11). The inner ring (3) rotates relative to the outer ring (1) through the steel balls (11). A motor (9) for driving the worm (31) to rotate is installed at one end of the worm housing (2), and a bearing (7) is installed at the other end of the worm housing (2).

2. The novel intelligent crane pipe rotary joint according to claim 1 is characterized in that: The output shaft of the motor (9) is connected to the worm (31) via a coupling, and one end of the worm (31) is connected to the bearing (7).

3. The novel intelligent crane pipe rotary joint according to claim 1 is characterized in that: A sealing gasket (6) is provided between the second flange (5) at the top of the outer ring (1) and the third flange (8) welded to the pipeline, and the second flange (5) and the third flange (8) are fixedly connected by bolts.

4. The novel intelligent crane pipe rotary joint according to claim 1 is characterized in that: The O-ring (33) arranged on the inner ring (3) is in contact with the inner wall of the outer ring (1). The O-ring (33) is arranged on both sides of the semi-arc-shaped steel ball groove A (34) to prevent dust from entering the steel ball raceway.

5. The novel intelligent crane pipe rotary joint according to claim 1 is characterized in that: Two steel ball insertion holes (10) are arranged on the outer wall of the outer ring (1), and the steel ball insertion holes (10) are connected with the steel ball raceway and are used to insert the steel balls into the steel ball raceway through the steel ball insertion holes (10). The steel ball (11) insertion holes (10) are threaded holes, and bolts are threadedly connected to the steel ball insertion holes (10) to prevent the steel balls in the steel ball raceway from being discharged from the steel ball insertion holes (10).

6. The novel intelligent crane pipe rotary joint according to claim 1 is characterized in that: The motor (9) is electrically connected to a PLC control box, and the outer ring (1) and the worm housing (2) are integrally formed by die casting.

7. The novel intelligent crane pipe rotary joint according to claim 1 is characterized in that: The outer ring (1) and the second flange (5) are integrated, and the inner ring (3) and the first flange (4) are integrated, and are all integrally formed by die forging.

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