CN113511605A - Novel pulley bearing and mounting mode thereof, pulley assembly and pulley assembly - Google Patents
Novel pulley bearing and mounting mode thereof, pulley assembly and pulley assembly Download PDFInfo
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- CN113511605A CN113511605A CN202110583349.2A CN202110583349A CN113511605A CN 113511605 A CN113511605 A CN 113511605A CN 202110583349 A CN202110583349 A CN 202110583349A CN 113511605 A CN113511605 A CN 113511605A
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- inner ring
- flange
- pulley
- main body
- bearing
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- 238000005096 rolling process Methods 0.000 claims abstract description 38
- 238000000034 method Methods 0.000 claims abstract description 21
- 238000009434 installation Methods 0.000 claims description 22
- 238000007789 sealing Methods 0.000 claims description 17
- 239000003292 glue Substances 0.000 claims description 9
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 abstract description 10
- 238000004080 punching Methods 0.000 abstract description 5
- 230000008093 supporting effect Effects 0.000 description 9
- 230000002457 bidirectional effect Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 5
- 238000003754 machining Methods 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 238000005034 decoration Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D3/00—Portable or mobile lifting or hauling appliances
- B66D3/04—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
- F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
- F16C33/583—Details of specific parts of races
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7816—Details of the sealing or parts thereof, e.g. geometry, material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
The invention discloses a novel pulley bearing, a mounting mode of the novel pulley bearing, a pulley component and a pulley assembly. The novel pulley bearing comprises an inner ring, an outer ring and a rolling body. The inner ring comprises an inner ring main body, a fixed flange and a detachable flange, the inner ring main body is of an integral and non-split structure and is free of a middle flange, and the detachable flange is detachably connected with the inner ring main body. On one hand, the inner ring main body is of an integral and non-split structure and is free of a middle flange, so that processes such as slotting, punching, clamping and the like related to a splitting process are reduced, and a plurality of processing surfaces of the middle flange are reduced; on the other hand, the inner ring has no middle flange, and the width adjusting space of the middle flange of the outer ring is large, so that the length of the rolling body of the pulley bearing can be properly increased under the condition that the pulley bearing has the same external dimension as the existing bearing, and the bearing capacity of the bearing is increased. In conclusion, the pulley bearing achieves the purposes of simple process and strong bearing capacity.
Description
Technical Field
The invention relates to the technical field of pulley bearings, in particular to a novel pulley bearing and an installation mode thereof, a pulley component and a pulley assembly.
Background
In the prior art, pulleys are widely applied to various hoisting machines, and are generally arranged in the form of a single pulley or a pulley block, wherein the single pulley is arranged as shown in fig. 1, and the pulley block is arranged as shown in fig. 2.
The pulley bearing is a self-lubricating double-row full-complement cylindrical roller bearing with an outer ring provided with a stopping groove, and is also a positioning bearing. The bearing has very good rigidity and can bear high radial force and medium-sized bidirectional axial force. The pulley bearing outer ring is provided with a middle flange, and both sides of the pulley bearing outer ring are not provided with flanges. And the grooves are formed on the two sides of the mounting surface of the outer ring, so that the clamping ring is convenient to mount, and the pulley and the bearing which are in close fit form a reliable whole after being mounted. The pulley bearing inner ring is provided with a middle flange and flanges at two sides, and the inner ring is integrally processed to ensure the coaxiality of the two rows of raceways and the mounting surface. In order to facilitate the installation of the rolling bodies, the inner ring needs to be axially split in the assembling stage, and after the rolling bodies are installed in place, the rolling bodies are connected together through a hoop. The inner ring of the pulley bearing is slightly wider than the outer ring, and when the pulley bearing is used for pulley block arrangement, the outer ring of the adjacent bearing is prevented from generating operation interference. As a self-lubricating sealing bearing, the flanges at the two sides of the inner ring are respectively provided with a sealing ring.
In a single pulley arrangement, as shown in FIG. 3, the pulley is rotatably secured to the pulley shaft by a bearing and the inner race of the bearing is supported by a retaining ring and a shoulder to provide axial support.
In the arrangement of a plurality of pulleys, as shown in fig. 4, the inner rings of adjacent pulley bearings are axially supported by each other two by two, and both sides of the pulley bearing set are respectively supported by the retainer ring and/or the shaft shoulder to form axial supporting and positioning.
As shown in fig. 5, a schematic diagram of an installation process of a conventional pulley bearing includes the steps of: a. machining and forming the inner ring, wherein the machining and forming comprises turning/grinding of a plurality of surfaces of the middle flange and grooving of the inner side and the outer side of the middle flange; b. punching the inner ring into two parts which are symmetrical left and right by adopting a special cutter and a tool; c. respectively loading the rolling bodies into a left inner raceway and a right inner raceway, respectively installing the rolling bodies in place from two sides, and installing sealing rings; d. after the two rows of inner rings and the rolling element assemblies are installed in place, the two rows of inner rings are hooped tightly through the hoops.
In summary, the pulley bearing is used as a double-row fully-assembled positioning bearing, and in order to facilitate the assembly of the rolling elements, the inner ring adopts a split structure, so that the process is complex. Firstly, slotting and punching off the inner ring, and locking by using a hoop after two rows of rolling bodies are respectively arranged. The process has the advantages of multiple processing surfaces, complex process flow and high cost. Meanwhile, due to the existence of the clamp groove and the flanges in the inner ring, the length of the rolling body is limited, and further the radial bearing capacity of the bearing is limited.
Therefore, whether a pulley bearing can be designed is a problem to be solved by the patent, and the pulley bearing is simple in machining process and strong in radial bearing capacity.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a novel pulley bearing and an installation mode thereof, a pulley component and a pulley assembly, and the aims of simple processing technology and strong bearing capacity of the pulley bearing are fulfilled.
The technical scheme provided by the invention is as follows: a novel pulley bearing comprises an inner ring and an outer ring which are positioned on the same central line, wherein a gap is formed between the inner ring and the outer ring, a plurality of rolling bodies are arranged between the inner ring and the outer ring, the inner ring comprises an inner ring main body, a first flange and a second flange, and the first flange and the second flange are respectively positioned at two ends of the inner ring main body; a plurality of fixed middle flanges are arranged on the inner side of the outer ring to isolate adjacent rolling bodies; the first rib and/or the second rib are detachably connected with the inner ring main body. Due to the detachable connecting flange, the inner ring of the integrated non-split structure becomes possible.
Further, the inner ring main body is of an integrated non-split structure.
The technical scheme discloses a novel pulley bearing with a non-split inner ring, which reduces the processes of slotting, punching, clamping and the like related to a splitting process, and reduces the processing difficulty and the processing cost of the pulley bearing. In addition, an inner ring hoop and a hoop groove are eliminated, the inner ring hoop and the hoop groove occupy larger axial size, the length of the rolling body is limited, and the limiting factor is eliminated in the non-split design of the inner ring.
Furthermore, the inner ring has no middle flange structure, the inner ring main body and the first flange are of an integral structure and are detachably connected with the second flange, and the second flange is of a circular structure.
The technical scheme discloses a concrete structure of an inner ring, and on one hand, the inner ring has no middle flange structure, and the through type design of a raceway reduces a plurality of processing surfaces of the middle flange. On the other hand, under the condition of eliminating the middle rib of the inner ring, the rolling bodies are separated only by the middle rib of the outer ring, and the width adjusting space of the middle rib of the outer ring is large, so that the length of the rolling bodies can be properly increased under the condition that the pulley bearing has the same external dimension as the existing bearing, and the radial bearing capacity of the bearing is increased. Through the structural characteristics of the two aspects, the purposes of simple processing technology and strong bearing capacity of the pulley bearing are achieved.
The technical scheme further discloses a specific structure of the inner ring, and the technical effect that the product is convenient to assemble is achieved through the structure that the inner ring main body and the first flange are designed into an integrated structure, and the second flange and the inner ring main body are detachably connected. Specifically, in the actual assembly process, the rolling elements may be mounted to the outer ring, the inner ring may be mounted to the outer ring in the direction of the second flange, and then the second flange and the seal ring may be mounted. Compared with the assembly process of the existing bearing, the bearing is easier to install the inner ring, and the working procedure of fixing the inner ring by using the hoop in the assembly process of the existing bearing is reduced.
Furthermore, one side, close to the outer ring, of one end of the inner ring main body is step-shaped, a flange mounting spigot is formed, the diameter of an inner hole of the second flange is equal to that of a step surface of the inner ring, the inner hole of the second flange is matched and connected with the step surface of the inner ring main body, and the second flange axially abuts against the end surface of the flange mounting spigot; the second flange is connected with the stepped surface of the flange mounting spigot in an interference fit manner, or in a screw connection manner, or in a threaded connection manner, or in a locking connection manner, or in a glue connection manner, or in a common connection manner of any two connection manners.
Furthermore, one side of the second flange, which is close to the inner ring main body and the bearing rotation axis, is provided with an installation gap, the diameter of the inner hole of the second flange is equal to that of the inner hole of the inner ring, and the diameter of the step surface of the inner ring main body is consistent with that of the inner hole of the second flange installation gap; the inner hole of the mounting notch is matched and connected with the step surface of the inner ring, and the end surface of the mounting notch is axially abutted against the end surface of the inner ring; the inner hole of the notch of the second flange is connected with the step surface of the inner ring through interference fit, or screw connection, or threaded connection, or lock catch connection, or glue connection, or any two connection modes.
Furthermore, one side of the second flange, which is close to the inner ring main body and the bearing rotation axis, is provided with an installation gap, the diameter of an inner hole of the second flange is equal to that of an inner hole of the inner ring, and the diameter of the inner hole of the installation gap is equal to that of a raceway surface of the inner ring; the inner hole of the mounting notch is matched and connected with the raceway surface of the inner ring, and the end surface of the mounting notch is axially abutted against the end surface of the inner ring; the second flange is connected with the raceway surface of the inner ring through the inner hole of the notch in an interference fit manner, or in a screw connection manner, or in a threaded connection manner, or in a locking connection manner, or in a glue connection manner, or in a common connection manner of any two connection manners.
The technical scheme further discloses detachable flanges and structural forms corresponding to the inner ring main body, and particularly, the first structural form enables the second flanges, namely the detachable flanges, to be in close fit connection with the step surfaces of the inner ring through the step structures arranged on the inner ring main body, and forms axial support for the second flanges through the mounting rabbets of the inner ring. In the second structure form, the inner ring main body is provided with a step structure, the second flange is provided with an installation notch, the inner hole of the second flange notch can be matched with the step surface of the inner ring, and axial support is formed on the end surface of the second flange notch through the end surface of the inner ring. In a third structural form, the inner ring main body is not provided with a step structure, the second flange is provided with an installation notch, an inner hole of the installation notch can be matched and connected with the raceway surface of the inner ring, and axial support is formed on the end surface of the second flange notch through the end surface of the inner ring.
In practical application, the second flange, namely the detachable flange, can reliably bear axial load no matter the pulley bearing is used for arranging a single pulley or a plurality of pulleys. In particular, when the pulley bearing is used for a single pulley arrangement, the detachable flanges of the three types of pulley bearings can be reliably axially supported due to the axial supporting action of the shaft shoulder and the washer. When the pulley bearing is used for a plurality of pulley-sliding arrangements and the second flanges can be arranged in the same direction as the detachable flanges, when the axial force of the bearing points to the detachable flanges, the detachable flanges are axially supported by the fixed flanges of the adjacent bearings, and finally the axial force is transmitted to a shaft shoulder or a gasket by the inner rings of the adjacent bearings. When the pulley bearing is used for a plurality of pulley arrangements, and the second flanges can be split flanges which are arranged in opposite directions, when the axial force of the bearing points to the split flanges, the split flanges are axially supported by the split flanges of adjacent bearings, the split flanges of adjacent bearings are axially supported by flanges mounting spigots or inner ring end faces arranged on the inner rings of the bearings, and finally the axial force is transmitted to a shaft shoulder or a gasket by the inner rings of the adjacent bearings.
Furthermore, a sealing groove is formed in one side, facing the outer ring, of the first retaining edge and/or the second retaining edge, and the sealing groove is used for installing a sealing ring.
A novel pulley bearing's mounting means for installing above-mentioned arbitrary novel pulley bearing, includes following steps: the method comprises the following steps: a plurality of rolling bodies are arranged in the outer ring, and the rolling bodies are divided into a plurality of rows by the middle baffle edge; step two: the inner ring main body is arranged in the outer ring, and when the inner ring main body and the first flange are of an integrated structure, the inner ring main body is arranged in the outer ring from the first flange to the second flange; step three: the second flange is arranged on one side, far away from the first flange, of the inner ring main body; step four: the sealing rings are respectively arranged at the first retaining edge and the second retaining edge.
This technical scheme further discloses above-mentioned novel pulley bearing's mounting means, compares in the mounting means of current bearing, the integral type structural design of inner circle main part, and the inner circle no longer carries out the subdivision processing, and then has also saved the process of inner circle subdivision and the fixed two inner circles of clamp among the prior art. Compared with the installation mode of the existing bearing, the installation mode is easier to implement, the production period is short, and the production cost is low.
This technical scheme further discloses a loose pulley assembly, include the wheel body and install in the snap ring of loose pulley bearing outer lane draw-in groove, still include above-mentioned novel loose pulley bearing.
This technical scheme further discloses a pulley assembly. Including a plurality of loose pulley assembly, pulley shaft and axial packing ring. A plurality of loose pulley assembly, pulley shaft and axial retaining ring are located same central line, a plurality of loose pulley assembly pass through novel pulley bearing is rotatable to be fixed on the pulley shaft, the pulley shaft can set up the shaft shoulder, a plurality of novel pulley bearing install between the axial packing ring or between axial packing ring and the shaft shoulder. Different the second retaining edges of the novel pulley bearings are arranged towards the same direction, or are adjacent to each other.
The pulley assembly of the present invention can bear bidirectional axial load reliably no matter a single pulley assembly or a plurality of pulley assemblies are arranged in any direction.
The invention has the technical effects that:
1. the integral non-split design of the main structure of the inner ring reduces the processes of slotting, punching, machining of a clamp groove, clamping of a clamp and the like, which are involved in the splitting process, simplifies the machining process and optimizes the cost.
2. The inner ring roller path is designed in a through mode, a plurality of processing surfaces of the middle flange are reduced, the processing technology is simplified, and the cost is optimized.
3. The inner ring structure does not limit the length of the rolling body, and the width adjusting space of the flange in the outer ring is large, so that the length of the rolling body of the pulley bearing can be properly increased under the condition that the pulley bearing has the same external dimension as the existing bearing, and the radial bearing capacity of the bearing is increased.
4. The main structure of the inner ring is integral, and the design of no middle flange simplifies the installation process of the bearing.
5. The novel pulley bearing with the detachable flanges in any form is used for reliably bearing bidirectional axial force when a single pulley is arranged or a pulley block is arranged.
Drawings
The invention is described in further detail below with reference to the following figures and detailed description:
FIG. 1 is a schematic representation of a prior art single pulley arrangement of the present invention;
FIG. 2 is a schematic view of a prior art pulley block arrangement of the present invention;
FIG. 3 illustrates the internal structure and the peripheral structure of a single pulley bearing according to the background art of the present invention;
FIG. 4 illustrates a block diagram of a pulley assembly and its peripheral structure according to the background art of the present invention;
fig. 5 is a schematic view of a pulley bearing according to the background art of the present invention;
FIG. 6 is a schematic view of a novel pulley bearing (type A) and its peripheral structure according to an embodiment of the present invention;
fig. 7 is a schematic view of the installation of the novel pulley bearing according to an embodiment of the invention;
fig. 8 is a schematic structural diagram of the two novel pulley bearings (type a) arranged in the same direction according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of two novel pulley bearings (type a) arranged in opposite directions according to an embodiment of the present invention;
FIG. 10 is a schematic view of a novel pulley bearing (type B) and its peripheral structure according to an embodiment of the present invention;
fig. 11 is a schematic view of a novel pulley bearing (C-shaped) and its peripheral structure according to an embodiment of the present invention.
The reference numbers illustrate:
100. the novel pulley bearing comprises a novel pulley bearing body, an inner ring 110, an inner ring 111, an inner ring main body 111-a flange mounting spigot 112, a first flange 113, a second flange 113, an installation notch 113-a, a sealing groove 114, an outer ring 120, a middle flange 121, a rolling body 130;
200. pulley assembly, 210. wheel body;
300. pulley assembly, 310 pulley shaft.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will be made with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.
For the sake of simplicity, only the parts relevant to the invention are schematically shown in the drawings, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
In this context, it is to be understood that, unless otherwise specifically stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not intended to indicate or imply relative importance.
As a specific example, as shown in fig. 6 to 11, this embodiment is a novel pulley bearing 100. The prior pulley bearing structure and the installation method are shown in the background art and fig. 1 to 5. In the present technical solution, the novel pulley bearing 100 includes an inner ring 110 and an outer ring 120 located on the same central line, the inner ring 110 and the outer ring 120 are arranged in a gap, and a plurality of rolling elements 130 are installed between the inner ring 110 and the outer ring 120, the inner ring 110 includes an inner ring main body 111, a first rib 112 and a second rib 113, and the first rib 112 and the second rib 113 are respectively located at two ends of the inner ring main body 111. A plurality of fixed middle ribs 121 are arranged on the inner side of the outer ring 120 to isolate the adjacent rolling bodies 130. The first rib 112 and/or the second rib 113 are detachably connected to the inner ring body 111. In other words, the first rib 112 is detachably connected with the inner ring main body 111, and the second rib 113 and the inner ring main body 111 are of an integrated structure; or the second rib 113 and the inner ring main body 111 are detachably connected, and the first rib 112 and the inner ring main body 111 are of an integrated structure; or, the first rib 112 is detachably connected with the inner ring main body 111, and the second rib 113 is also detachably connected with the inner ring main body 111.
Further preferably, the inner ring main body 111 is of an integral non-split structure. In a preferred embodiment, a sealing groove 114 is formed on a side of the first rib 112 and/or the second rib 113 facing the outer ring 120, and the sealing groove 114 is used for installing a sealing ring. In other words, the sealing groove 114 may be opened on the first rib 112 or the second rib 113, or both the first rib 112 and the second rib 113.
Preferably, as shown in fig. 6 to 11, the inner ring main body 111 has no middle rib structure, the inner ring main body 111 and the first rib 112 are of an integral structure, and are detachably connected to the second rib 113, and the second rib 113 is of a circular ring structure. It should be noted that the second rib 113 is only schematically illustrated as the detachable rib in the present embodiment, and therefore, it should be understood by those skilled in the art that both the first rib 112 and the second rib 113 can be regarded as the detachable rib.
The detachable flanges at least comprise the following three specific technical schemes:
the first scheme is as follows: as shown in fig. 6 to 9, one end of the inner ring main body 111 close to the outer ring 120 is stepped to form a flange mounting spigot 111-a. The diameter of the inner hole of the second flange 113 is equal to the diameter of the step surface of the inner ring 110. The inner hole of the second flange 113 is connected with the step surface of the inner ring 110 in a matching manner, and the second flange 113 axially abuts against the end surface of the flange mounting spigot 111-a. As shown in fig. 6, the stepped surface of the inner ring 110 is a cylindrical surface of the flange installation slit 111-a, which is coaxial with the raceway surface of the inner ring 110. That is, the rib mounting seam allowance 111-a is radially connected with the inner hole surface of the second rib 113. The end surface of the flange mounting spigot 111-a refers to the side surface of the flange mounting spigot 111-a, and the normal direction of the surface is axially consistent with the inner ring 110, namely the end surface of the flange mounting spigot 111-a axially close to the second flange 113. The second rib 113 is connected with the rib step surface of the inner ring main body 111 in an interference fit manner, or in a screw connection manner, or in a threaded connection manner, or in a locking connection manner, or in a glue connection manner, or in a common connection manner of any two connection manners. For the purpose of subsequent analysis, the novel pulley bearing 100 of embodiment one is defined as a novel pulley bearing 100 with a type a detachable rib.
Scheme II: as shown in fig. 10, a mounting notch 113-a is formed at a side of the second rib 113 close to the inner ring main body 111 and the bearing rotation axis, and an inner hole diameter of the second rib 113 is equal to an inner hole diameter of the inner ring 110. Preferably, the diameter of the step surface of the inner ring main body 111 is consistent with the diameter of the inner hole of the mounting notch 113-a of the second flange 113. The inner hole of the mounting notch 113-a is matched and connected with the step surface of the inner ring 110, and the end surface of the mounting notch 113-a is axially abutted against the end surface of the inner ring 110. The inner hole of the notch of the second retaining edge 113 and the step surface of the inner ring 110 can be connected in an interference fit manner, or in a screw connection manner, or in a threaded connection manner, or in a locking connection manner, or in a glue connection manner, or in a combination of any two connection manners. For the convenience of subsequent analysis, the novel pulley bearing 100 of the second embodiment is defined as a novel pulley bearing 100 with B-type detachable ribs.
The third scheme is as follows: as shown in fig. 11, a mounting notch 113-a is formed on a side of the second rib 113 close to the inner ring main body 111 and the bearing rotation axis, an inner hole diameter of the second rib 113 is equal to an inner hole diameter of the inner ring 110, and an inner hole diameter of the mounting notch 113-a is equal to a raceway surface diameter of the inner ring 110. The inner hole of the installation notch 113-a is matched and connected with the raceway surface of the inner ring 110, and the end surface of the installation notch 113-a is axially abutted against the end surface of the inner ring 110. The second rib 113 is connected with the raceway surface of the inner ring 110 through an inner hole of the notch in an interference fit manner, or in a screw connection manner, or in a threaded connection manner, or in a locking connection manner, or in a glue connection manner, or in a joint connection manner of any two connection manners. For the convenience of subsequent analysis, the novel pulley bearing 100 of the third embodiment is defined as the novel pulley bearing 100 with C-type detachable ribs.
In conclusion, the technical scheme further discloses three specific structures of the detachable flanges and connection modes thereof. When the second flange 113 of the pulley bearing 100 is a detachable flange, the detachable flange has no axial force bearing capability when receiving an axial force from the bearing rolling element 130, and needs to be supported by the shoulder, the retainer ring or the adjacent inner race 110 to support the axial force. The connection ensures that the new pulley bearing 100 according to the present solution becomes an integral bearing during packaging, transportation, and installation of the bearing and surrounding structures when supplied as a component. The novel pulley bearing 100 related to the technical scheme can be used for supporting a single pulley and can also be used for supporting a pulley block as an integral bidirectional positioning bearing.
Specifically, when the novel pulley bearing 100 according to the present disclosure is used for supporting a single pulley, when the pulley bears an axial force, the axial force is transmitted to the bearing outer ring 120 through the pulley, then transmitted to one of the rows of rolling elements 130 through the middle rib 121 of the outer ring 120, and then transmitted to the fixed rib or the detachable rib through the rolling elements 130, and the outer end faces of the fixed rib and the detachable rib are axially supported by the shaft shoulder or the retainer ring, and the axial force is directly transmitted to the shaft shoulders or the retainer rings on both sides through the rib.
Further, when the novel pulley bearing 100 according to the present disclosure is used for supporting a pulley set, the second rib 113 can be detached from the novel pulley bearing 100, and both can reliably support a bidirectional axial load.
Specifically, when the novel pulley bearing 100 according to the present disclosure is used for supporting a pulley assembly, taking the detachable rib of the a-type as an example, when the detachable rib is arranged in the same direction, that is, the fixed rib and the detachable rib of the adjacent bearing are axially supported by each other. The axial force applied to the pulley is transmitted to the bearing outer ring 120 through the pulley, then transmitted to one row of rolling elements 130 through the middle rib 121 of the outer ring 120, and then transmitted to the fixed rib or the detachable rib through the rolling elements 130. The axial force experienced by the retaining lip is supported by the shoulder or washer, or by the inner race 110 of the adjacent pulley bearing, and is ultimately transmitted to the shoulder or washer. The axial force experienced by the detachable ribs is supported by the shoulder or washer or by the fixed ribs of the adjacent pulley bearing and is ultimately transmitted to the shoulder or washer through the inner race 110 of the adjacent bearing.
Further, when the novel pulley bearing 100 according to the present disclosure is used for supporting a pulley assembly, taking the detachable flanges of a type as an example, when the detachable flanges are arranged in the same direction, that is, the fixed flanges of adjacent pulley bearings are axially supported by each other, or the detachable flanges of adjacent pulley bearings are axially supported by each other. The axial force applied to the pulley is transmitted to the bearing outer ring 120 through the pulley, then transmitted to one row of rolling bodies 130 through the middle rib 121 of the outer ring 120, and then transmitted to the fixed rib or the detachable rib through the rolling bodies 130. The axial force experienced by the retaining ribs is supported by the shoulder or washer, or the retaining ribs of adjacent pulley bearings, and is ultimately transmitted to the shoulder or washer through the inner race 110 of the adjacent pulley bearing. The axial force borne by the detachable flanges is transmitted to the detachable flanges of the adjacent pulley bearings, supported by the end faces of the installing rabbets 111-a of the flanges of the inner rings of the adjacent pulley bearings, transmitted to the structure of the main bodies 111 of the inner rings of the adjacent bearings, and finally transmitted to a shaft shoulder or a gasket through the inner rings 110 of the adjacent pulley bearings.
Furthermore, when the novel pulley bearing 100 according to the present disclosure is used for supporting a pulley set, the novel pulley bearing 100 with B and C type detachable flanges is similar to the novel pulley bearing 100 with a type a detachable flanges, and will not be described herein again. The novel pulley bearing 100 with the A, B and C-shaped splittable ribs reliably supports bi-directional axial loads when the splittable ribs are arranged in either a co-directional or a counter-directional arrangement. When the detachable flanges are subjected to the axial force transmitted by the pulleys, the middle flange 121 of the outer ring 120 and the rolling body 130, the detachable flanges can be axially supported by the shaft shoulder, the retainer ring or the inner ring of the adjacent pulley bearing.
As another embodiment of the present invention, an installation method of a novel pulley bearing 100 is provided, which is used for installing the novel pulley bearing 100 according to any of the above embodiments, and includes the following steps:
the method comprises the following steps: a plurality of rolling bodies 130 are arranged in the outer ring 120, and the plurality of rolling bodies 130 are divided into a plurality of rows by the middle ribs 121;
step two: the inner ring main body 111 is installed into the outer ring 120, and when the inner ring main body 111 and the first rib 112 are of an integrated structure, the inner ring main body 111 is installed into the outer ring 120 from the first rib 112 to the direction of the second rib 113;
step three: the second flange 113 is arranged on one side of the inner ring main body 111 far away from the first flange 112;
step four: the sealing rings are respectively installed at the first rib 112 and the second rib 113.
As another embodiment of the present invention, a pulley assembly 200 includes a pulley body 210 and a snap ring installed on a snap groove of a pulley bearing outer ring 120, and further includes the novel pulley bearing 100 according to any of the embodiments. The structure of the novel pulley bearing 100 is similar to that of the previous embodiment, and will not be described herein.
As another embodiment of the present invention, a pulley assembly 300 includes a pulley shaft 310, an axial retaining ring, and a pulley assembly 200 according to the previous embodiment.
Specifically, pulley assembly 200, pulley shaft 310 and retaining ring are located same central line, a plurality of pulley assembly 200 pass through novel pulley bearing 100 is rotatable to be fixed on pulley shaft 310, novel pulley bearing 100 is installed between the retaining ring or between retaining ring and the shaft shoulder. Different second flanges 113 of the novel pulley bearing 100 are all arranged towards the same direction, or two adjacent second flanges 113 of the novel pulley bearing 100 are arranged oppositely. The stress of the novel pulley bearing 100 with A, B and the type C detachable flanges in the pulley assembly 300 with the detachable flanges arranged in the same direction or opposite directions is similar to that in the above embodiment, and will not be described again.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A novel pulley bearing comprises an inner ring and an outer ring which are positioned on the same central line, wherein a gap is formed between the inner ring and the outer ring, a plurality of rolling bodies are arranged between the inner ring and the outer ring, the inner ring comprises an inner ring main body, a first flange and a second flange, and the first flange and the second flange are respectively positioned at two ends of the inner ring main body; the inner side of the outer ring is provided with a plurality of fixed middle flanges to isolate adjacent rolling bodies,
the first rib and/or the second rib are detachably connected with the inner ring main body.
2. The new pulley bearing according to claim 1,
the inner ring main body is of an integrated non-split structure.
3. The new pulley bearing according to claim 2,
the inner ring is of a structure without a middle flange, the inner ring main body and the first flange are of an integral structure and are detachably connected with the second flange, and the second flange is of a circular structure.
4. A new pulley bearing according to claim 3, characterized in that,
one side, close to the outer ring, of one end of the inner ring main body is step-shaped, a flange mounting spigot is formed, and the diameter of an inner hole of the second flange is equal to that of a step surface of the inner ring;
an inner hole of the second flange is matched and connected with the step surface of the inner ring, and the second flange axially abuts against the end surface of the flange mounting spigot;
the second retaining edge is connected with the step surface of the inner ring main body in an interference fit mode, or in a screw connection mode, or in a threaded connection mode, or in a locking connection mode, or in a glue connection mode, or in a combined connection mode of any two connection modes.
5. A new pulley bearing according to claim 3, characterized in that,
mounting notches are formed in one side, close to the inner ring main body and the bearing rotation axis, of the second retaining edge, the diameter of an inner hole of the second retaining edge is equal to that of the inner hole of the inner ring, and the diameter of the step surface of the inner ring main body is consistent with that of the inner hole of the second retaining edge mounting notch;
the inner hole of the mounting notch is matched and connected with the step surface of the inner ring, and the end surface of the mounting notch is axially abutted against the end surface of the inner ring;
the inner hole of the notch of the second flange is connected with the step surface of the inner ring through interference fit, or screw connection, or threaded connection, or lock catch connection, or glue connection, or any two connection modes.
6. A new pulley bearing according to claim 3, characterized in that,
one side of the second flange, which is close to the inner ring main body and the bearing rotation axis, is provided with an installation gap, the diameter of an inner hole of the second flange is equal to that of an inner hole of the inner ring, and the diameter of the inner hole of the installation gap is equal to that of a raceway surface of the inner ring;
the inner hole of the mounting notch is matched and connected with the raceway surface of the inner ring, and the end surface of the mounting notch is axially abutted against the end surface of the inner ring;
the second flange is connected with the raceway surface of the inner ring through the inner hole of the notch in an interference fit manner, or in a screw connection manner, or in a threaded connection manner, or in a locking connection manner, or in a glue connection manner, or in a common connection manner of any two connection manners.
7. A new pulley bearing according to any one of claims 1-6,
the first flange and/or the second flange face one side of the outer ring and are/is provided with a sealing groove, and the sealing groove is used for installing a sealing ring.
8. A novel pulley bearing mounting method, for mounting the novel pulley bearing of claim 7, comprising the following steps:
the method comprises the following steps: a plurality of rolling bodies are arranged in the outer ring, and the rolling bodies are divided into a plurality of rows by middle flanges;
step two: the inner ring main body is arranged in the outer ring, and when the inner ring main body and the first flange are of an integrated structure, the inner ring main body is arranged in the outer ring from the first flange to the second flange;
step three: the second flange is arranged on one side, far away from the first flange, of the inner ring main body;
step four: the sealing rings are respectively arranged at the first retaining edge and the second retaining edge.
9. A pulley assembly comprising a pulley body and a snap ring mounted on a snap groove of an outer ring of a pulley bearing, further comprising the novel pulley bearing according to any one of claims 1 to 6.
10. A pulley assembly comprises a pulley shaft and an axial retainer ring, and is characterized in that,
further comprising the sheave assembly of claim 9,
the pulley assemblies, the pulley shafts and the check rings are positioned on the same central line, the pulley assemblies can be rotatably fixed on the pulley shafts through the novel pulley bearings, and the novel pulley bearings are arranged between the check rings or between the check rings and shaft shoulders;
different the second retaining edges of the novel pulley bearings are arranged towards the same direction, or are adjacent to each other.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110583349.2A CN113511605A (en) | 2021-05-27 | 2021-05-27 | Novel pulley bearing and mounting mode thereof, pulley assembly and pulley assembly |
| PCT/CN2022/077051 WO2022247361A1 (en) | 2021-05-27 | 2022-02-21 | New-type pulley bearing and mounting method therefor, pulley component, and pulley assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110583349.2A CN113511605A (en) | 2021-05-27 | 2021-05-27 | Novel pulley bearing and mounting mode thereof, pulley assembly and pulley assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113511605A true CN113511605A (en) | 2021-10-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110583349.2A Pending CN113511605A (en) | 2021-05-27 | 2021-05-27 | Novel pulley bearing and mounting mode thereof, pulley assembly and pulley assembly |
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| CN (1) | CN113511605A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022247361A1 (en) * | 2021-05-27 | 2022-12-01 | 李丹 | New-type pulley bearing and mounting method therefor, pulley component, and pulley assembly |
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| CN215558617U (en) * | 2021-05-27 | 2022-01-18 | 李丹 | Novel pulley bearing, pulley component and pulley assembly |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202118108U (en) * | 2011-06-08 | 2012-01-18 | 瓦房店阿科比轴承有限公司 | Double-row cylindrical sealed full roller track roller |
| CN202531644U (en) * | 2012-06-13 | 2012-11-14 | 瓦房店轴承集团有限责任公司 | Omniseal biserial cylindrical roller bearing with flange |
| CN215558617U (en) * | 2021-05-27 | 2022-01-18 | 李丹 | Novel pulley bearing, pulley component and pulley assembly |
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| WO2022247361A1 (en) * | 2021-05-27 | 2022-12-01 | 李丹 | New-type pulley bearing and mounting method therefor, pulley component, and pulley assembly |
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