Disclosure of Invention
The invention aims to solve the technical problems of overcoming the defects of the prior art and providing the rotary joint assembly and the centrifugal container mounting device which have simple structure and small volume and can prevent abrasion impurities from entering a product and friction heat from affecting the product.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a rotary joint assembly, includes roating seat and rotation axis, the center of rotation axis is equipped with the runner, all be equipped with the butt joint mouth on roating seat and the rotation axis, be equipped with the mounting hole on the roating seat, be equipped with bearing, sealing washer and distribution ring in proper order from outside to inside in the mounting hole, the rotation axis is inserted and is located in bearing, sealing washer and the distribution ring, distribution ring and rotation axis clearance fit, just be equipped with the ring channel in the distribution ring, the runner communicates with the butt joint mouth of rotation axis to communicate with the butt joint mouth of roating seat through the ring channel.
As a further improvement of the above technical scheme:
the gap between the distribution ring and the rotating shaft is 0.1-0.2mm.
The center of the rotating shaft is provided with a connecting pipe, the flow channel is formed in the connecting pipe, the connecting pipe is inserted into the sealing ring and the distribution ring, and the distribution ring is in clearance fit with the connecting pipe of the rotating shaft.
The inner side of the distribution ring in the mounting hole is provided with a sealing ring, the inner side of the sealing ring is provided with a tapping ring, an inner pipe penetrates through the connecting pipe, the inner pipe is inserted into the sealing ring and the tapping ring, the tapping ring is in clearance fit with the inner pipe, a flow passage is formed between the connecting pipe and the inner pipe, an annular groove is formed in the tapping ring, outer interfaces are arranged on the rotating seat and the rotating shaft, and the inner pipe is communicated with the outer interfaces of the rotating shaft and is communicated with the outer interfaces of the rotating seat through the annular groove.
The gap between the tapping ring and the inner pipe is 0.1-0.2mm.
And joints are arranged at the opposite interfaces and the outer interfaces.
The mounting hole is internally provided with a step, the rotating shaft is positioned at one side of the step outwards, and the sealing ring and the distribution ring are positioned at one side of the step inwards.
The utility model provides a centrifugation container installation device, includes rotating base, is used for installing the mounting bracket and foretell rotary joint subassembly of centrifugation container, the mounting bracket sets up on the rotating base, rotating base detachably sets up on the mounting bracket.
As a further improvement of the above technical scheme:
the center of the mounting frame is provided with a trepanning, and the rotating seat is inserted in the trepanning.
The rotary seat is provided with a positioning block, and the inner wall of the trepanning is provided with a positioning groove matched with the positioning block.
Compared with the prior art, the invention has the advantages that:
in the assembly process of the rotary joint assembly, firstly, the bearing, the sealing ring and the distribution ring are sequentially inserted into the mounting hole from outside to inside, and then the rotary shaft is inserted into the bearing, the sealing ring and the distribution ring, so that the assembly of the rotary seat and the rotary shaft can be completed. And otherwise, the rotary seat and the rotary shaft are detached. The rotary joint assembly is simple in structure, and the connecting structure between the rotary seat and the rotary shaft is arranged in the mounting hole, so that the rotary joint assembly does not occupy external space, and the whole volume is small. And the sealing ring is arranged between the bearing and the distribution ring, so that the bearing abrasion impurities are prevented from entering the annular groove on the distribution ring, and pollution to products is avoided. Meanwhile, the distribution ring is in clearance fit with the rotating shaft, so that heat generated by friction between the distribution ring and the rotating shaft is avoided, and the quality of a product is influenced. The rotary joint assembly is simple in structure, small in size and capable of avoiding the abrasion impurities from entering the product and the influence of friction heat on the product.
The centrifugal container mounting device of the invention, which comprises all technical features of the rotary joint assembly, has all advantages of the rotary joint assembly.
Detailed Description
The invention will be described in further detail with reference to the drawings and the specific examples.
As used in this disclosure and in the claims, the terms "a," "an," "the," and/or "the" are not specific to a singular, but may include a plurality, unless the context clearly dictates otherwise. The terms "first," "second," and the like, as used in this disclosure, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Likewise, the word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.
Embodiment one:
fig. 1 to 3 show an embodiment of the rotary joint assembly according to the present invention, which comprises a rotary seat 1 and a rotary shaft 2, wherein a flow channel 3 is arranged in the center of the rotary shaft 2, opposite interfaces 4 are arranged on the rotary seat 1 and the rotary shaft 2, a mounting hole 11 is arranged on the rotary seat 1, a bearing 5, a sealing ring 6 and a distribution ring 7 are sequentially arranged in the mounting hole 11 from outside to inside, the rotary shaft 2 is inserted into the bearing 5, the sealing ring 6 and the distribution ring 7, the distribution ring 7 is in clearance fit with the rotary shaft 2, an annular groove 71 is arranged in the distribution ring 7, the flow channel 3 is communicated with the opposite interfaces 4 of the rotary shaft 2, and is communicated with the opposite interfaces 4 of the rotary seat 1 through the annular groove 71.
In the assembly process, the bearing 5, the sealing ring 6 and the distribution ring 7 are sequentially inserted into the mounting hole 11 from outside to inside, and then the rotating shaft 2 is inserted into the bearing 5, the sealing ring 6 and the distribution ring 7, so that the rotating seat 1 and the rotating shaft 2 can be assembled. And conversely, the rotary seat 1 and the rotary shaft 2 are split. The rotary joint assembly has simple structure, and the connecting structure between the rotary seat 1 and the rotary shaft 2 is arranged in the mounting hole 11, so that the rotary joint assembly does not occupy external space and has small whole volume. And, sealing washer 6 sets up between bearing 5 and distribution ring 7, prevents bearing 5 wearing and tearing impurity to get into the ring channel 71 on the distribution ring 7, avoids causing the pollution to the product. Meanwhile, the distribution ring 7 is in clearance fit with the rotating shaft 2, so that heat generated by friction between the distribution ring and the rotating shaft is prevented, and the quality of a product is influenced. The rotary joint assembly is simple in structure, small in size and capable of avoiding the abrasion impurities from entering the product and the influence of friction heat on the product.
In this embodiment, the gap between the distribution ring 7 and the rotation shaft 2 is 0.1-0.2mm. The distribution ring 7 and the rotating shaft 2 are in the gap range, so that the impurity blocking effect is good, and the impurity can be well prevented from entering the annular groove 71 through the gap.
In this embodiment, the center of the rotating shaft 2 is provided with a connecting pipe 21, the flow channel 3 is formed in the connecting pipe 21, the connecting pipe 21 is inserted into the sealing ring 6 and the distribution ring 7, and the distribution ring 7 is in clearance fit with the connecting pipe 21 of the rotating shaft 2. The rotating shaft 2 is inserted into the bearing 5 and is inserted into the sealing ring 6 and the distribution ring 7 through the connecting pipe 21, so that the connection strength of the rotating seat 1 and the rotating shaft 2 can be ensured, and the connectivity of the rotating seat and the rotating shaft can be maintained.
In this embodiment, a sealing ring 8 is disposed inside the distribution ring 7 in the mounting hole 11, a tapping ring 9 is disposed inside the sealing ring 8, an inner tube 211 is inserted into the connecting tube 21, the inner tube 211 is inserted into the sealing ring 8 and the tapping ring 9, the tapping ring 9 is in clearance fit with the inner tube 211, a flow channel 3 is formed between the connecting tube 21 and the inner tube 211, an annular groove 91 is disposed in the tapping ring 9, outer interfaces 41 are disposed on the rotating base 1 and the rotating shaft 2, and the inner tube 211 is communicated with the outer interfaces 41 of the rotating shaft 2 and is communicated with the outer interfaces 41 of the rotating base 1 through the annular groove 91.
The bearing 5, the sealing ring 6, the distribution ring 7, the sealing ring 8 and the tapping ring 9 are sequentially arranged in the mounting hole 11 from outside to inside, one end of the connecting pipe 21 extending out of the rotating shaft 2 is inserted into the sealing ring 6 and the distribution ring 7, and one end of the inner pipe 211 extending out of the connecting pipe 21 is inserted into the sealing ring 8 and the tapping ring 9. The interface 4, the runner 3 and the distribution ring 7 are communicated to form a circulation channel, the outer interface 41, the inner tube 211 and the tapping ring 9 are communicated to form another circulation channel, and the two circulation channels can meet the connection requirement of multiple channels.
In this embodiment, the gap between the tapping ring 9 and the inner tube 211 is 0.1-0.2mm. The tapping ring 9 and the inner tube 211 are in the gap range, so that the blocking effect on impurities is good, and the impurities can be well prevented from entering the annular groove 71 through the gap.
In this embodiment, the joint 42 is provided at both the interface 4 and the external interface 41. Facilitating interfacing with external related components.
In this embodiment, the mounting hole 11 has a step 111 therein, the rotary shaft 2 is located on the outward side of the step 111, and the seal ring 6 and the distribution ring 7 are located on the inward side of the step 111.
Embodiment two:
fig. 4 and 5 show an embodiment of the centrifuge vessel mounting device of the present invention, which includes a swivel base 92, a mounting bracket 93 for mounting the centrifuge vessel, and the swivel joint assembly of the first embodiment, the mounting bracket 93 being provided on the swivel base 92, and the swivel base 1 being detachably provided on the mounting bracket 93. The swivel base 1, the mounting frame 93 and the swivel base 92 rotate synchronously. The centrifugal container mounting apparatus includes all the technical features of the rotary joint assembly, and has all the advantages of the rotary joint assembly.
In this embodiment, a sleeve hole 931 is formed in the center of the mounting frame 93, and the rotary base 1 is inserted into the sleeve hole 931.
In this embodiment, the positioning block 12 is disposed outside the rotary seat 1, and a positioning groove 932 matching with the positioning block 12 is disposed on the inner wall of the sleeve hole 931. The rotating seat 1 and the mounting frame 93 are ensured to be circumferentially fixed, and synchronous rotation is realized. Meanwhile, the disassembly and assembly are convenient.
While the invention has been described in terms of preferred embodiments, it is not intended to be limiting. Many possible variations and modifications of the disclosed technology can be made by anyone skilled in the art, or equivalent embodiments with equivalent variations can be made, without departing from the scope of the invention. Therefore, any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present invention shall fall within the scope of the technical solution of the present invention.