CN110143507B - Hub, roller and roller cage shoe - Google Patents
Hub, roller and roller cage shoe Download PDFInfo
- Publication number
- CN110143507B CN110143507B CN201910537318.6A CN201910537318A CN110143507B CN 110143507 B CN110143507 B CN 110143507B CN 201910537318 A CN201910537318 A CN 201910537318A CN 110143507 B CN110143507 B CN 110143507B
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- hub
- annular cavity
- bearing seat
- main
- roller
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- 239000007788 liquid Substances 0.000 claims abstract description 16
- 239000007787 solid Substances 0.000 claims abstract description 8
- 239000011805 ball Substances 0.000 claims abstract description 4
- 239000002245 particle Substances 0.000 claims description 12
- 210000001503 joint Anatomy 0.000 claims description 6
- 239000004519 grease Substances 0.000 claims description 3
- 230000001050 lubricating effect Effects 0.000 claims description 3
- 239000010687 lubricating oil Substances 0.000 claims description 3
- 239000003921 oil Substances 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 2
- 239000013618 particulate matter Substances 0.000 abstract description 5
- 238000005266 casting Methods 0.000 description 12
- 239000000945 filler Substances 0.000 description 9
- 230000007547 defect Effects 0.000 description 8
- 239000003245 coal Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 5
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- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229910001208 Crucible steel Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B15/00—Main component parts of mining-hoist winding devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/02—Guideways; Guides
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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
- F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a hub, a roller and a roller cage shoe, wherein an annular cavity is formed in the centrifugal end part or the radial middle part of the hub, the axis of the annular cavity is collinear with the axis of the hub, and the annular cavity is axially and centrally arranged in the hub; the annular cavity is partially filled with solid particulate matter, balls, liquid or an arcuate body. The wheel hub and the roller cage shoe which are adapted according to the invention have relatively good dynamic balance.
Description
Technical Field
The invention relates to a hub, a roller with the hub and a roller cage shoe with the roller.
Background
The roller cage shoe is a cage guide device for a vertical shaft lifting container (such as a skip, a cage, a counterweight and the like) and is widely applied to industrial production departments of mines, coal and the like. The roller hub of the existing roller cage shoe is mainly a casting piece, and the material is mainly cast steel or cast aluminum. The casting defects are unavoidable due to the limitation of the casting process, and casting defects such as air holes, sand holes and the like appear more or less in the cast hub.
Along with the increasing scale of the mine, the diameter of the roller of the matched roller cage shoe is increased, the lifting speed is higher and higher, and the rotating speed of the matched roller is higher. When the cage shoe rotates at a high speed, casting defects such as hidden air holes, sand holes and the like in the hub can cause rotation unbalance of the cage shoe roller, and an effect similar to an eccentric wheel is generated, so that the roller shoe vibrates, the bearing load is increased, the abrasion of the rubber wheel is accelerated, and the service life of the buffer device is reduced; moreover, the lifting container can swing severely, the service life of equipment is shortened, and safety accidents are easy to occur.
For cast parts, excessive or excessive detail increases the probability of occurrence of casting defects. For the roller cage shoe, see a coal standard MT/T236-2011 'rectangular steel cage shoe roller cage shoe', three single wheels are combined into a group, the weight of each group is 111kg (model L25) at the minimum, 259kg (model LS 35) at the maximum, the weight of each single wheel is tens of kg, and the matched hub is large in individual, and casting defects can occur to a greater extent or a lesser extent. In addition, for larger castings, due to expansion and contraction, the solidified hub has a certain shrinkage, and the outline size often has some difference relative to the design size.
In addition, the roller cage shoe is mainly applied to the occasion that working environments such as mines and coal are severe, and therefore, as in the coal standard, the roller cage shoe is required to be provided with a buffer, specifically, the roller cage shoe comprises a base, a swing arm is arranged on the base through a rotating shaft, the roller is arranged on the swing arm, and the swing arm is mostly L-shaped, so that the tail end of the swing arm is generally connected with one end of the buffer through the rotating shaft, and the other end of the buffer is hinged to the base. Therefore, in the running process of the roller cage shoe, the swing arm and the buffer form a supporting assembly, and a certain amplitude of buffer can be generated. However, even if buffering is present, it is explicitly stated in the aforementioned coal standard that the buffer has a limit of maximum travel, and the dynamic balance of the rollers necessarily requires higher demands on the buffering of the buffer.
Disclosure of Invention
In order to improve dynamic balance of the roller, the invention aims to provide a wheel hub with relatively good dynamic balance, the invention also provides the roller with the wheel hub, and the roller cage shoe with the roller.
According to the embodiment of the invention, a hub is provided, which is a hub of a roller on a roller cage shoe, an annular cavity is formed in the centrifugal end part or the radial middle part of the hub, the axis of the annular cavity is collinear with the axis of the hub, and the annular cavity is axially and centrally arranged in the hub;
the annular cavity is partially filled with solid particulate matter, balls, liquid or an arcuate body.
The hub described above, optionally, has:
a first structure: the hub is formed by involution of two identical hub bodies;
and a second structure: the hub comprises a main hub and an auxiliary hub, wherein the main hub comprises a bearing seat and a main support body formed by radially extending from one side of the axial centering bias, and the auxiliary hub is sleeved on the bearing seat from the other side and is in butt joint with the main support body;
and a third structure: the hub comprises a main hub and two auxiliary hubs, wherein the main hub comprises a bearing seat and a middle supporting body formed by radial extension in the axial direction, and two ends of the two auxiliary hubs are respectively sleeved on the bearing seat and are in butt joint with the middle supporting body;
fourth structure: the hub is provided with an inner ring and a left outer ring and a right outer ring, wherein the inner ring is provided with a bearing seat and spokes or a spoke plate taking the bearing seat as a matrix, and the left outer ring and the right outer ring are sleeved and oppositely arranged on the inner ring from the two axial ends of the inner ring and are fixedly connected with the tail ends of the spokes or the spoke plate;
fifth structure: the hub is provided with a bearing seat with a pipe sleeve structure, a radial connecting body radially connected to the bearing seat, a supporting sleeve sleeved on the radial connecting body and coaxial with the bearing seat, and a pair of taper sleeves sleeved on the supporting sleeve and used for constructing rubber wheel grooves;
sixth structure: the hub is provided with a bearing seat with a sleeve structure, the bearing seat is provided with a first end and a second end opposite to the first end, the first end is connected with an annular plate forming a rim of the first end, and the second end is directly or indirectly connected with a baffle forming a rim of the second end; providing a supporting sleeve, wherein two ends of the supporting sleeve are respectively connected with the supporting sleeve or the baffle plate at the end of the supporting sleeve, and a conical bushing forming a rubber wheel groove is sleeved on the supporting sleeve;
seventh structure: the hub is provided with a main hub and an auxiliary hub, wherein the main hub is provided with a bearing seat, a main spoke plate or a main spoke extending radially from the bearing seat, and a supporting rim or a supporting fan ring formed at the centrifugal end of the main spoke plate or the main spoke plate; the auxiliary hub is provided with a hub sleeve sleeved and supported on the bearing seat, an auxiliary spoke plate or auxiliary spoke extending radially from the hub sleeve, and a base rim formed at the centrifugal end of the auxiliary spoke plate or auxiliary spoke plate, wherein the base rim is provided with a second part sleeved and supported on the supporting rim or the supporting fan ring;
in the first to third structures, the annular cavity is constructed on each joint surface of the involution to form a semi-annular cavity or a groove is formed on the side surface of the involuted centrifugal side;
in the fourth structure, the annular cavity is provided with a groove formed on the centrifugal side surface of the inner ring, and the groove shields the left outer ring and the right outer ring to form the annular cavity; or the annular cavity forms a semi-annular cavity on each joint surface of the left outer ring and the right outer ring which are in butt joint;
in the fifth and sixth configurations, the annular space has a recess axially centrally formed in the outer surface of the support sleeve;
in a seventh configuration, the annular space has a recess axially centrally formed in the outer surface of the base rim.
A hub according to claim 1 or 2, wherein in the radial direction of the hub the balls are adapted to an annular cavity with an arc-shaped centrifugal side of the cross section;
the diameter of the balls is smaller than the length of the cross section of the annular cavity in the radial direction of the hub.
Optionally, the diameter of the ball is one half to four fifth of the length.
Optionally, the number of the balls is 8-20.
Optionally, the filling amount of the particulate matters or the liquid in the annular cavity is one fifth to one half of the volume of the annular space.
Optionally, the eccentric side surface of the arcuate body is the same curvature as the eccentric side surface of the annular cavity;
the arc length of the arc body is more than or equal to 1.5 times of the radial length of the annular cavity cross section on the hub, and less than or equal to 3 times of the radial length.
Optionally, if the annular cavity is provided with the balls or the arc body, lubricating oil or lubricating grease is preset in the annular cavity, or an oil filling hole is arranged in the annular cavity.
According to an embodiment of the present invention, there is provided a roller having the hub.
According to an embodiment of the invention, a roller cage shoe with the roller is provided.
The hub provided by the embodiment of the invention is provided with the annular cavity at the axial end or the middle part of the axial center of the hub, and solid particles, balls, liquid or arc-shaped bodies are filled in the annular cavity and are collectively called as a filler. It will be appreciated that when the rotational speed of the hub is relatively low, the relative movement between the filler and the annular cavity is relatively small, and when the rotational speed of the hub is relatively high, the relative movement between the filler and the annular cavity is relatively large, the speed of the filler is gradually increased during the continuous movement of the hub, but the hysteresis corresponds to the rotational speed of the hub, so that the mass redistribution of the hub lags behind the excitation force generated by the imbalance of the original mass distribution, thereby effectively reducing the vibration of the hub due to casting defects. Along with the gradual increase of the speed of the filler, the mass distribution generated by centrifugation and the mass distribution of the hub have a balance effect, so that the dynamic balance of the hub is relatively good.
Drawings
Fig. 1 is a schematic illustration of a main section of a hub (including a rubber wheel) according to an embodiment.
Fig. 2 is a schematic diagram of a left-hand structure corresponding to fig. 1.
FIG. 3 is a schematic illustration of a main section of a secondary hub in an embodiment.
FIG. 4 is a schematic illustration of a main hub main section structure in an embodiment.
Fig. 5 is a schematic diagram of a main sectional structure of a roller in an embodiment.
Fig. 6 is a schematic diagram of a left-hand structure corresponding to fig. 5.
FIG. 7 is a schematic illustration of a main cross-section of a hub half in an embodiment.
Fig. 8 is a schematic diagram of a main sectional structure of a roller in an embodiment.
In the figure: 1. rubber wheel, 2, annular cavity, 3, secondary hub, 4, screw hole, 5, primary hub, 6, bearing housing bore, 7, bolt, 8, resilient washer, 9, nut, 10, balance piece, 11, weight reducing cavity, 12, semi-annular cavity, 13, semi-annular cavity, 14, relief hole, 15, circumferential hole, 16, bearing, 17, end cap, 18, screw, 19, resilient washer, 20, rim, 21, bearing cap, 22, wheel axle, 23, spoke hole, 24, spoke, 25, bearing housing, 26, annular plate, 27, tapered bushing, 28, support sleeve, 29, support ring.
Detailed Description
In the mechanical field, it is known that about half of the faults for rotating equipment originate from the rotation dynamic balance problem of the rotating equipment itself. In the mechanical field, there is a special mechanism for evaluating the balance state of a rotating rigid body, for example, international organization for standardization recommended standard ISO1940 "balance quality of a rotor rigid body", which uses VDI-20260 "evaluation of the balance state of a rotating rigid body" formulated by the german society of engineers.
Regarding dynamic balancing, there is currently much attention in the field of rotor technology, such as crankshafts of engines, rotors of electric machines, etc., whereas there is generally a lack of attention to other rotating equipment. In contrast, other types of rotating equipment have relatively low rotational speeds and the excitation forces generated by the rotational imbalance are relatively weak. After a long time of investigation, the inventor considers that the rotation unbalance of the roller on the roller cage shoe has higher requirements on the lifting speed of the cage and the like along with the occurrence of ultra-deep mines, and more attention is paid to the dynamic balance of the roller matched with the roller cage shoe for guiding the cage and the like.
In the mechanical field, dynamic balancing is generally understood to mean a process, for example rotor dynamic balancing, which means a process in which the mass distribution of the rotor itself is changed so as to achieve a coincidence of its main axis of inertia with the axis of rotation.
In the mechanical field, the dynamic balancing currently in common use mainly consists of passive automatic balancing with freely moving compensation masses, and active automatic balancing with forced movement, synthesis and removal of compensation masses. The dynamic balancing mechanism adopted by the invention belongs to the former.
Fig. 5 and 8 show two complete roller configurations in which the axle 22 is used for mounting the roller on the rocker arm of the roller cage, and in most applications the axle 22 is fixedly connected to the rocker arm, and the rotational freedom of the roller is defined by the rotational freedom of the roller and the axle 22 via the bearing 16. In other implementations, the axle 22 is fixedly connected to the hub, and the axle 22 is mounted to the swing arm by bearings, so that the roller may also be provided with rotational capability. Rotation can cause vibration in the presence of manufacturing accuracy and casting defects.
The wheel hub is a supporting part on the roller for determining the size of the roller, as shown in fig. 1, the wheel hub is formed by removing the rubber wheel 1 in fig. 1, the V-shaped rubber wheel groove formed on the periphery of the wheel hub is used for installing the rubber wheel 1, and the bearing seat hole 6 is used for installing the bearing 16 and is further arranged on the wheel axle 22.
Since the rubber wheel 1 needs to be positioned by using the V-shaped rubber wheel groove, the hub is generally in a left-right structure or a left-middle-right structure in most applications, and the outer circumferential surface of the hub is a cylindrical surface in fewer applications, and the rubber wheel groove is not needed, so that the hub is not necessarily configured in a left-right structure or a left-middle-right structure. The core of the hub of either construction is the construction of the annular cavity 2 and the need to meet the basic requirements of ease of construction.
The wheel hub of the roller on the roller cage shoe is related in the background technology, the individual weight of the wheel hub is relatively large, and cast parts are commonly adopted, so that casting defects are easy to generate. As a necessary condition, an annular cavity 2 is provided at the centrifugal end or radial middle of the hub, the axis of the annular cavity 2 is collinear with the axis of the hub, and the annular cavity 2 is axially centered in the hub.
In terms of the molding conditions, as shown in fig. 1, the annular cavity 2 is molded at the interface where the main hub 5 and the auxiliary hub 3 are joined, and is offset to the centrifugal side of the hub in the radial direction of the hub, and the larger the diameter of the annular cavity 2, the stronger the centrifugal effect at the same angular velocity.
In the construction shown in fig. 7, the annular cavity 2 is formed in the outer cylindrical surface of the support sleeve 28, and a closed cavity is formed by cooperation with the rubber wheel 1.
In the configuration shown in fig. 7, the annular cavity 2 can also be formed on the support ring 29.
In the embodiment of the present invention, the annular cavity 2 is biased toward the centrifugal side as much as the conditions permit.
The materials to be filled in the annular cavity 2 are collectively referred to as fillers, and the fillers should be capable of freely moving in the annular cavity 2, so that the aggregate state of the fillers can be liquid or solid, and the solid is not too large to be clamped by the annular cavity 2, so that the solid can be particulate on one hand and rolling bodies on the other hand.
For the rolling elements, they should have a low friction in the annular space 2, so that rolling elements of spherical structure, such as steel balls, are preferred. With respect to the fixation, it is also possible to use an arc-shaped body, which may be geometrically similar or identical to the partial arc-section of the annular cavity 2, or the mere surface that engages with the annular cavity 2 during the rotation of the roller.
Regarding the filling, as shown in fig. 1, the filling is a balancing piece denoted by reference numeral 10, in particular, a ball, and in fig. 2, it can be seen that 10 balancing pieces 10 are provided, before two hub bodies are assembled, one of them is put flat, then 10 balancing pieces 10 are placed in a semi-annular cavity 13 on the main hub 5 as shown in fig. 4, then the auxiliary hub 3 is fastened, and then the main hub 5 and the auxiliary hub 3 are fastened by bolts 7.
Regarding the liquid, in addition to satisfying the assembly conditions mentioned in the above paragraph, it is also necessary to consider sealing, and it is also necessary to clamp a sealing gasket on the assembly joint surface of the main hub 3 and the sub-hub 5 to ensure good liquid sealing performance. Because of the static seal, it is relatively easy to implement.
The hub has various structures, most hubs can meet the conditions of the open-loop cavity 2, as shown in fig. 3 and 4, and the semi-loop cavity 12 and the semi-loop cavity 13 can be formed on the joint surface of the main hub 5 and the auxiliary hub 3, and the complete annular cavity 2 can be formed after the joint. In some embodiments, as shown in fig. 7, a semi-annular cavity may be formed directly in the support sleeve 27, and then shielded by the rubber wheel 1 to form a complete cavity, although such a semi-circular cavity is relatively less effective than a cavity of circular cross-section.
Regarding the first structure of the hub: the hub is formed by joining two identical hub bodies, which are later in appearance, and can be seen in chinese patent document CN204508500U and chinese patent document CN104895915A, the two assembled hub bodies are symmetrical in shape about the axial middle section except for the joint portion therebetween, and this structure can be identical to that of fig. 3 and 4 of the specification when the annular cavity 2 is manufactured, and direct joining is generated between the two hub bodies, thereby generating a joint surface.
Second structure about hub: i.e. the hub structure shown in fig. 1-4, comprising a main hub 5 and a secondary hub 3, wherein the main hub 5 comprises a bearing seat 25 and a main support extending radially from the right in the axially centered drawing, and the secondary hub is fitted over the bearing seat 25 from the other side and is in register with said main support, which structure is essentially identical to the first structure except that the bearing seat 25 is provided solely by the main hub 5, and therefore should be substantially identical with respect to the construction of the annular cavity 2.
The second structure is the most widely used hub structure.
Third structure regarding hub: as can be seen from chinese patent CN201043106Y, the hub is a wide hub, and comprises a main hub 5 and two auxiliary hubs 3, relative to a hub having only one main hub 5 and one auxiliary hub 3, wherein the main hub 5 comprises a bearing seat 25 and an intermediate support body extending radially in the axial direction, and two ends of the two auxiliary hubs 3 are respectively sleeved on the bearing seat 25 and are engaged with the intermediate support body.
In the third configuration, the annular cavity 2 is preferably an open-loop groove centered on the outer cylindrical surface of the intermediate main support, and then the complete annular cavity 2 is formed by cooperation with the rubber wheel 1.
Fourth structure regarding hub: see fig. 5 and 6, more specifically, chinese patent CN207111696U, in which the hub has an inner ring and left and right outer rings, the substructure is described in more detail in chinese patent CN207111696U, and fig. 5 and 6 are also incorporated herein by reference, and the structure thereof is not described in detail.
In the fourth structure, the annular cavity 2 can be constructed on the joint surface of the two outer rings, the structure of the annular cavity can be similar to that of the first structure, and the annular cavity 2 can also be arranged on the outer surface of the joint of the two outer rings and matched with the rubber wheel 1 to form a complete annular cavity 2.
With respect to the fifth structure of the hub: referring to fig. 7 of the drawings, and more particularly to chinese patent CN207161514U, the hub has a bearing housing 25 of a sleeve structure, a radial connector radially coupled to the bearing housing 25 and a support sleeve 28 fitted over the radial connector (support ring 29 shown in fig. 7) and coaxial with the bearing housing 25, and a pair of cone sleeves 28 fitted over the support sleeve 28 for forming a rubber wheel groove.
A more specific structural description of the fifth structure is presented in chinese patent document CN207161514U, and will not be described here.
In the fifth configuration, the annular cavity may be provided with a semi-annular cavity on the centrifugal side of the support ring 29, while a further semi-annular cavity is provided on the opposite part of the support sleeve to the support ring 29, which, when assembled, may form a complete annular cavity.
In some embodiments, the annular cavity 2 may also be formed with an annular groove directly on the outer cylindrical surface of the support sleeve 28, and then cooperate with the rubber wheel 1 to form the complete annular cavity 2. The support sleeve 28 structure also has a connection with other structural members, so that the strength of the middle part is weakened to have little influence on the support capacity.
Sixth structure with respect to hub: referring to fig. 8 of the specification, and more specifically, to chinese patent CN207470603U, the hub has a bearing housing 25 having a sleeve structure, the bearing housing 25 having a first end and a second end opposite to the first end, an annular plate forming a rim of the first end being connected to the first end, and a baffle plate forming a rim of the second end being directly or indirectly connected to the second end; a supporting sleeve 28 is provided, two ends of the supporting sleeve 28 are respectively connected with the baffle plates at the ends, and a conical bushing 27 forming a rubber wheel groove is sleeved on the supporting sleeve 25.
In the sixth configuration, the annular cavity 2 may be formed on the mating surface of the two tapered bushings 27, or may be formed in cooperation with the support sleeve 28 in the same manner as in the fifth configuration.
The hub to which the sixth structure is adapted is described in more detail in chinese patent document CN207470603U, and will not be described here.
Seventh structure of hub: see chinese patent CN108773752a, which is a hub of the type having a main hub 5 and a secondary hub 3, wherein the main hub 5 has a bearing housing 25 and a main web or main spoke extending radially from the bearing housing 25, and a support rim or support fan ring formed at the centrifugal end of the main web or main spoke; the secondary hub 3 has a hub sleeve fitted over and supported on the bearing housing and a secondary web or secondary spoke extending radially from the hub sleeve, and a base rim formed at the centrifugal end of the secondary web or secondary spoke, the base rim having a second portion fitted over and supported on the support rim or support ring.
The seventh structure is described in very detail in chinese patent document CN108773752a, and will not be described here. In a seventh configuration, the annular cavity may be formed in the interface between the base rim and the support rim, each side being formed with half of the annular cavity.
The above seven structures cover the basic structure of most hubs, but are not all covered, and in principle cover substantially all hubs, and based on the same principle, a person skilled in the art can determine how to open the ring-shaped cavity 2, which is not shown here.
In the radial direction of the hub, the balls are adapted to an annular cavity 2 of circular cross section on the centrifugal side, preferably an annular cavity 2 of circular cross section.
Further, the diameter of the balls is smaller than the length of the cross section of the annular cavity 2 in the radial direction of the hub.
When the balance member 10 adopts balls, the diameter of the balls is one half to four fifths of the radial length of the cross section of the annular cavity 2 in the hub, so as to ensure the smoothness of the balls running in the annular cavity 2.
Further, the number of the balls is 8-20. When the number is small, the dispersibility of the balls is relatively weak, and in principle, a large number of balls is beneficial to the formation of a relatively good mass redistribution condition, but the overall cost of the large number of balls is high.
When the individual balls are small, they can be considered as particles to some extent, but under rational conditions, the balls should be a collection of balls having substantially the same particle size even if the amount of balls used is large. Further, in some embodiments, instead of balls, particulates are employed, which may be considered solid particulates having a size within a range, as opposed to balls, that do not have a relatively strict single particle size.
The particulate matter has certain fluid properties, so that its dispersibility is relatively better under the action of centrifugal force.
The particles are further replaced by liquid based on fluidity, and the filling amount of the particles or the liquid in the annular cavity 2 is one fifth to one half of the volume of the annular space. It is often difficult to achieve a filling level of more than one half, limited by the manufacturing process, and in some assembly processes, for example, the main hub 5 and the secondary hub 3 may be immersed in the liquid, which may result in a great waste of liquid, especially if it is not necessary to fill the annular cavity 2 at all, and the effect of mass re-balancing is lost.
The effect of the re-balancing of the mass distribution is relatively insignificant when the amount of liquid or particulate matter is too small, and therefore the filling amount is not less than one fifth of the volume of the annular cavity 2.
In some implementations, the density of the filled particles and the liquid need to be considered, the choice of the particles is wide, and the particles which are the same as the hub material are easier to find, and the particles can be made of steel grit provided that the hub body is made of cast steel. In contrast, the liquid density is generally less than that of castings, even cast aluminum, which is 2.7 times the water density. Thus, in a preferred embodiment, particulate matter is used as the filler.
In some embodiments, the balance member 10 adopts an arc-shaped body, the curvature of the centrifugal side surface of the arc-shaped body is the same as that of the centrifugal side surface of the annular cavity 2, and the arc-shaped body slides in fit with the centrifugal side surface of the annular cavity 2 under the action of centrifugal force, so that the damage to the surface of the annular cavity 2 is less.
Further, the arc length of the arc body is more than or equal to 1.5 times of the radial length of the hub of the cross section of the annular cavity 2 and less than or equal to 3 times of the radial length of the hub, the arc body cannot roll or be blocked in the annular cavity 2, and the single body is relatively small, so that the realization of dynamic balance is facilitated.
Further, if the balls or the arc bodies are arranged in the annular cavity 2, lubricating oil or lubricating grease is preset in the annular cavity, or an oil injection hole is arranged in the annular cavity, so that the friction coefficient between the balance piece 10 and the annular cavity 2 is reduced.
Claims (7)
1. A hub is a hub of a roller on a roller cage shoe and is characterized in that an annular cavity is formed in the centrifugal end part or the radial middle part of the hub, the axis of the annular cavity is collinear with the axis of the hub, and the annular cavity is axially and centrally arranged in the hub;
the annular cavity is partially filled with solid particles, balls, liquid or arc-shaped bodies; the hub has:
a first structure: the hub is formed by involution of two identical hub bodies; or (b)
And a second structure: the hub comprises a main hub and an auxiliary hub, wherein the main hub comprises a bearing seat and a main support body formed by radially extending from one side of the axial centering bias, and the auxiliary hub is sleeved on the bearing seat from the other side and is in butt joint with the main support body; or (b)
And a third structure: the hub comprises a main hub and two auxiliary hubs, wherein the main hub comprises a bearing seat and a middle supporting body formed by radial extension in the axial direction, and two ends of the two auxiliary hubs are respectively sleeved on the bearing seat and are in butt joint with the middle supporting body; or (b)
Fourth structure: the hub is provided with an inner ring and a left outer ring and a right outer ring, wherein the inner ring is provided with a bearing seat and spokes or a spoke plate taking the bearing seat as a matrix, and the left outer ring and the right outer ring are sleeved and oppositely arranged on the inner ring from the two axial ends of the inner ring and are fixedly connected with the tail ends of the spokes or the spoke plate; or (b)
Fifth structure: the hub is provided with a bearing seat with a pipe sleeve structure, a radial connecting body radially connected to the bearing seat, a supporting sleeve sleeved on the radial connecting body and coaxial with the bearing seat, and a pair of taper sleeves sleeved on the supporting sleeve and used for constructing rubber wheel grooves; or (b)
Sixth structure: the hub is provided with a bearing seat with a sleeve structure, the bearing seat is provided with a first end and a second end opposite to the first end, the first end is connected with an annular plate forming a rim of the first end, and the second end is directly or indirectly connected with a baffle forming a rim of the second end; providing a supporting sleeve, wherein two ends of the supporting sleeve are respectively connected with the supporting sleeve or the baffle plate at the end of the supporting sleeve, and a conical bushing forming a rubber wheel groove is sleeved on the supporting sleeve; or (b)
Seventh structure: the hub is provided with a main hub and an auxiliary hub, wherein the main hub is provided with a bearing seat, a main spoke plate or a main spoke extending radially from the bearing seat, and a supporting rim or a supporting fan ring formed at the centrifugal end of the main spoke plate or the main spoke plate; the auxiliary hub is provided with a hub sleeve sleeved and supported on the bearing seat, an auxiliary spoke plate or auxiliary spoke extending radially from the hub sleeve, and a base rim formed at the centrifugal end of the auxiliary spoke plate or auxiliary spoke plate, wherein the base rim is provided with a second part sleeved and supported on the supporting rim or the supporting fan ring;
in the first to third structures, the annular cavity is constructed on each joint surface of the involution to form a semi-annular cavity or a groove is formed on the side surface of the involuted centrifugal side;
in the fourth structure, the annular cavity is provided with a groove formed on the centrifugal side surface of the inner ring, and the groove shields the left outer ring and the right outer ring to form the annular cavity; or the annular cavity forms a semi-annular cavity on each joint surface of the left outer ring and the right outer ring which are in butt joint;
in the fifth and sixth configurations, the annular space has a recess axially centrally formed in the outer surface of the support sleeve;
in a seventh configuration, the annular space has a recess axially centrally formed in the outer surface of the base rim;
the filling amount of the particles or the liquid in the annular cavity is one fifth to one half of the volume of the annular space;
if the ball or the arc body is arranged in the annular cavity, lubricating oil or lubricating grease is preset in the annular cavity, or an oil filling hole is arranged in the annular cavity.
2. The hub according to claim 1, wherein in the radial direction of the hub the balls are adapted to an annular cavity with an arc-shaped centrifugal side of the cross section;
the diameter of the balls is smaller than the length of the cross section of the annular cavity in the radial direction of the hub.
3. The hub of claim 2, wherein the balls have a diameter of one-half to four-fifths of the length.
4. The hub of claim 2, wherein the number of balls is 8-20.
5. The hub of claim 1, wherein the centrifugal side surface of the arcuate body has the same curvature as the centrifugal side surface of the annular cavity;
the arc length of the arc body is more than or equal to 1.5 times of the radial length of the annular cavity cross section on the hub, and less than or equal to 3 times of the radial length.
6. A roller having the hub of any one of claims 1 to 5.
7. A roller shoe having the roller of claim 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910537318.6A CN110143507B (en) | 2019-06-20 | 2019-06-20 | Hub, roller and roller cage shoe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910537318.6A CN110143507B (en) | 2019-06-20 | 2019-06-20 | Hub, roller and roller cage shoe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110143507A CN110143507A (en) | 2019-08-20 |
| CN110143507B true CN110143507B (en) | 2023-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910537318.6A Active CN110143507B (en) | 2019-06-20 | 2019-06-20 | Hub, roller and roller cage shoe |
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| Country | Link |
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| CN (1) | CN110143507B (en) |
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| US3799619A (en) * | 1972-05-18 | 1974-03-26 | Wagner K | Vibration dampening assembly |
| US5503464A (en) * | 1994-10-12 | 1996-04-02 | Collura; John A. | Self-balancing wheel for motorized vehicles |
| DE19814502A1 (en) * | 1997-05-09 | 1998-11-12 | Mannesmann Sachs Ag | Friction clutch for vehicle |
| CN102753856A (en) * | 2010-02-19 | 2012-10-24 | 山本博明 | Balancer |
| CN104145132A (en) * | 2012-01-23 | 2014-11-12 | Ntn株式会社 | Wheel driving apparatus |
| CN106080023A (en) * | 2016-06-30 | 2016-11-09 | 张全兴 | A kind of automotive wheel, tire automatic balancing arrangement |
| CN210340003U (en) * | 2019-06-20 | 2020-04-17 | 山东诺泰机电设备有限公司 | Wheel hub, roller and roller cage shoe |
-
2019
- 2019-06-20 CN CN201910537318.6A patent/CN110143507B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2737420A (en) * | 1951-12-10 | 1956-03-06 | John C Wilborn | Means for balancing wheels |
| US3316021A (en) * | 1965-01-04 | 1967-04-25 | Virgil H Salathiel | Wheel balancer |
| US3733923A (en) * | 1971-08-30 | 1973-05-22 | E Goodrich | Economical automatic balancer for rotating masses |
| US3799619A (en) * | 1972-05-18 | 1974-03-26 | Wagner K | Vibration dampening assembly |
| US5503464A (en) * | 1994-10-12 | 1996-04-02 | Collura; John A. | Self-balancing wheel for motorized vehicles |
| DE19814502A1 (en) * | 1997-05-09 | 1998-11-12 | Mannesmann Sachs Ag | Friction clutch for vehicle |
| CN102753856A (en) * | 2010-02-19 | 2012-10-24 | 山本博明 | Balancer |
| CN104145132A (en) * | 2012-01-23 | 2014-11-12 | Ntn株式会社 | Wheel driving apparatus |
| CN106080023A (en) * | 2016-06-30 | 2016-11-09 | 张全兴 | A kind of automotive wheel, tire automatic balancing arrangement |
| CN210340003U (en) * | 2019-06-20 | 2020-04-17 | 山东诺泰机电设备有限公司 | Wheel hub, roller and roller cage shoe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110143507A (en) | 2019-08-20 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Wheel hub, roller and roller can ear Granted publication date: 20231027 Pledgee: Shandong Weishan Rural Commercial Bank Co.,Ltd. Pledgor: SHANDONG NUOTAI ELECTRICAL EQUIPMENT CO.,LTD. Registration number: Y2024980002678 |
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