CN113800202B

CN113800202B - Rolling element

Info

Publication number: CN113800202B
Application number: CN202110997059.2A
Authority: CN
Inventors: 张晓峰; 马兰英; 亓鹏
Original assignee: Shandong Lingxiyuan Technology Development Co ltd
Current assignee: Shandong Lingxiyuan Technology Development Co ltd
Priority date: 2021-08-27
Filing date: 2021-08-27
Publication date: 2023-07-21
Anticipated expiration: 2041-08-27
Also published as: CN113800202A

Abstract

The invention belongs to the technical field of material conveying devices, and particularly relates to a rolling body, which comprises a shell, a ball and a plurality of auxiliary balls, wherein a mounting cavity is formed in the shell; the shell inner wall has the holding surface, has vice pearl between holding surface and the ball, and the shell is formed with the trapway with installation cavity intercommunication in the edge of holding surface, and vice pearl can move to the trapway. According to the rolling body, impurities in the rolling body can be discharged from the sewage disposal channel, so that the rolling resistance of the impurities to the balls and the auxiliary beads is reduced, and the abrasion of the impurities to the balls and the auxiliary beads is reduced.

Description

Rolling element

Technical Field

The invention relates to the technical field of material conveying devices, in particular to a rolling body.

Background

Currently, existing rolling bodies generally comprise a housing, a ball mounted inside the housing, and a plurality of secondary balls, the ball extending partially beyond the underside of the housing and being capable of rolling relative to the housing. The rolling bodies can be used for a material conveying device to reduce the running resistance of the material conveying device, for example, the rolling bodies can be applied to a scraper conveyor, and the scraper conveyor is a conveying device for conveying coal and materials and generally comprises a chain and a scraper arranged on the chain, wherein the chain can drive the scraper to slide on a conveying surface of the scraper conveyor. However, the scraper conveyor is usually used in a scene of poor environmental cleanliness such as a coal mine, and the conveying surface is usually provided with impurities such as coal dust and sludge. In the operation process of the scraping plate, impurities easily enter the shell, the impurities accumulated in the shell are gradually compacted, the balls and the auxiliary beads are difficult to rotate in the shell, and the balls and the auxiliary beads are easily worn by some impurities with larger hardness.

Disclosure of Invention

In order to solve the technical problems, the invention provides the rolling body, impurities in the rolling body can be discharged from a sewage disposal channel, so that the resistance of the impurities to rolling of the balls and the auxiliary beads is reduced, the abrasion of the impurities to the balls and the auxiliary beads is reduced, and the problems in the prior art are effectively solved.

In order to solve the above problems, the present invention provides a rolling element comprising a housing, a ball and a plurality of sub-balls, wherein a mounting cavity is formed in the housing, the ball and the plurality of sub-balls are provided in the mounting cavity, and a part of the ball protrudes out of the lower side of the housing; the shell inner wall has the holding surface, has vice pearl between holding surface and the ball, and the shell be formed with in the edge of holding surface with the blowdown passageway of installation cavity intercommunication, vice pearl can move to the blowdown passageway.

Further, the edge of the support surface has a trapway which accommodates at least one secondary bead separate from the ball on any cross section of the ball.

Further, the top wall of the shell is provided with a drain hole which forms a part of the drain channel.

Further, the shell comprises a shell body and a supporting seat arranged on the shell body, an installation cavity is formed in the shell body, a part of the supporting seat extends into the installation cavity, and the supporting seat is provided with a supporting surface.

Further, the edge of the supporting seat is provided with an annular supporting rib extending towards the inner wall of the shell body, and the annular supporting rib shields part of the space of the sewage draining hole.

Further, a dirt guiding gap is arranged between the upper surface of the annular supporting rib and the inner surface of the shell, and the dirt guiding gap forms a part of the sewage channel.

Further, the radial dimension of the dirt guiding gap is smaller than the outer diameter of the auxiliary bead.

Further, the side wall of the shell is provided with a drain hole, and the drain hole forms a part of the drain channel.

Further, the position of the blowdown hole is higher than the position of the auxiliary bead positioned in the blowdown space, and the radial dimension of the blowdown space close to the blowdown hole is smaller than the outer diameter of the auxiliary bead.

Further, the top wall of the shell body is provided with a threaded hole, a threaded column is formed above the supporting seat, and the threaded column is screwed in the threaded hole.

The invention has the beneficial effects that the sewage draining channel is arranged at the edge of the supporting surface of the shell, so that the efficiency of discharging impurities out of the mounting cavity can be improved, most impurities can be discharged before the impurities move to the middle part of the supporting surface, the space for blocking the ball and the auxiliary ball by the impurities is reduced, and the rolling resistance of the ball and the auxiliary ball is reduced. In addition, since impurities containing substances with high hardness can be discharged from the sewage channel at the edge of the supporting surface, the amount of movement of the impurities between the ball and the sub-ball is reduced, and abrasion of the sub-ball and the ball by the impurities with high hardness can be reduced. The rolling element effectively solves the problems existing in the prior art.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:

fig. 1 is a schematic front view of a rolling element according to an embodiment of the present invention.

Fig. 2 is a schematic cross-sectional view of a rolling element according to an embodiment of the present invention.

Fig. 3 is a schematic cross-sectional view of a rolling element according to another embodiment of the present invention.

Wherein: 1. a housing; 11. a mounting cavity; 12. a sewage disposal space; 13. a blow-down hole; 14. a housing body; 15. a support base; 151. annular supporting ribs; 152. a threaded column; 16. a dirt guiding gap; 2. a ball; 3. and (5) auxiliary beads.

Detailed Description

In order to more clearly illustrate the general inventive concept, reference will be made in the following detailed description, by way of example, to the accompanying drawings.

It should be noted that in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than as described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

In addition, in the description of the present invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. However, it is noted that a direct connection indicates that two bodies connected together do not form a connection relationship by an excessive structure, but are connected to form a whole by a connection structure. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In the present invention, as shown in fig. 1 to 3, there is provided a rolling body comprising a housing 1, a ball 2 and a plurality of sub-beads 3, a mounting chamber 11 is formed inside the housing 1, the ball 2 and the plurality of sub-beads 3 are provided in the mounting chamber 11, and the ball 2 partially protrudes from the lower side of the housing 1; the inner wall of the shell 1 is provided with a supporting surface, an auxiliary bead 3 is arranged between the supporting surface and the ball 2, a sewage disposal channel communicated with the installation cavity 11 is formed at the edge of the supporting surface of the shell 1, and the auxiliary bead 3 can move to the sewage disposal channel.

When the rolling bodies are used, impurities easily enter the mounting cavity 11 from a gap between the surface of the ball 2 and the inner wall of the housing 1, so that most of the impurities can enter the space of the edge of the supporting surface. The sewage disposal channel is arranged at the edge of the shell 1 on the supporting surface, on one hand, impurities entering the installation cavity 11 can generate thrust to impurities already positioned in the installation cavity 11, and part of impurities can be discharged out of the installation cavity 11 from the sewage disposal channel under the action of the thrust; on the other hand, when the impurities entering the installation cavity 11 move to the edge of the supporting surface, the auxiliary beads 3 moving to the sewage disposal channel can drive the impurities to move to the sewage disposal channel through the rolling of the auxiliary beads, so that the impurities are promoted to be discharged out of the installation cavity 11 from the sewage disposal channel, and the impurities are prevented from being compacted in the installation cavity 11; on the other hand, the rolling bodies vibrate during operation, so that impurities can have certain loose fluidity in the installation cavity 11, and the easiness in discharging the impurities from the sewage drainage channel can be improved.

The blowdown passageway locates shell 1 at the edge of holding surface, can improve the efficiency of impurity discharge installation cavity 11 to can remove most impurity before the middle part of holding surface is removed to the impurity, reduce impurity and block up ball 2 and the space of vice pearl 3 activity, reduce ball 2 and vice pearl 3 rolling resistance. In addition, after part of impurities with lubricating effect enter the middle part of the supporting surface, the balls 2 and the auxiliary balls 3 can be lubricated, for example, in a coal mine, the coal slime entering the mounting cavity 11 can lubricate the balls 2, and the rolling performance of the balls 2 is improved. In addition, since impurities containing substances having a large hardness can be discharged from the drain passage at the edge of the support surface, the amount of movement of impurities between the ball 2 and the sub-ball 3 is reduced, and abrasion of the sub-ball 3 and the ball 2 by the impurities having a large hardness can be reduced.

In the present invention, the auxiliary bead 3 can be moved to the trapway, and it is understood that the auxiliary bead 3 can be moved to a part of the space of the trapway, and it is also understood that the auxiliary bead 3 can be moved to the edge of the trapway and not enter the space of the trapway.

It should be noted that, in the present invention, the condition in which the balls 2 partially protrude from the lower side of the housing 1 is based on the condition in which the balls 2 face down with respect to the ground, it is understood that when the balls 2 face up with respect to the ground, the balls 2 partially protrude from the upper side of the housing 1.

In a preferred embodiment, further specifically, the edge of the support surface has a trapway 12, which trapway 12 accommodates at least one sub-bead 3 separate from the ball 2 in any cross section of the ball 2. As shown in fig. 2, the auxiliary bead 3 in the sewage disposal space 12 is separated from the ball 2, the ball 2 does not directly generate pressure on the auxiliary bead 3, so that the pressure generated by the auxiliary bead 3 on impurities when the sewage disposal space 12 rolls is small, the rolling of the auxiliary bead 3 at the position is more flexible, the impurities in the sewage disposal space 12 are not easy to compact, the impurities are favorable for keeping the impurities in a loose state in the sewage disposal space 12, and the impurities are easier to move in the sewage disposal channel under the rolling action of the auxiliary bead 3. The auxiliary beads 3 separated from the balls 2 can transversely roll along the edge of the supporting surface, and impurities in the sewage disposal space are subjected to small pressure and are loose, and the auxiliary beads 3 can drive the impurities to be discharged outwards from the sewage disposal channel.

In a preferred embodiment, further specifically, the top wall of the housing 1 is provided with a drain opening 13, the drain opening 13 forming part of a drain channel. In the embodiment shown in fig. 2, during operation, the impurities enter the installation cavity 11 from the bottom side of the housing 1, on one hand, as the impurities in the installation cavity 11 are increased, the impurities gradually accumulate upwards, and on the other hand, when the auxiliary beads 3 roll, the impurities are easier to drive upwards. Therefore, impurities can be more easily discharged from the drain hole 13 arranged on the top wall of the shell 1, and the drain hole 13 is arranged on the top wall of the shell 1, so that the easiness of entering the drain channel can be improved.

In addition, in the case that some impurities contain liquid such as moisture (mainly the moisture generated by spraying dust fall), when the ball 2 faces downwards relative to the ground, the liquid in the impurities is not easy to enter the drain hole 13 on the top wall of the housing 1 along with the solid because of the high mobility of the liquid, and part of the liquid entering the drain hole 13 along with the solid is easy to flow back into the mounting cavity 11, so that the liquid can dilute the impurities in the mounting cavity 211, increase the mobility of the impurities and prevent the impurities from compacting. Especially for impurities at the edges of the support surface, the liquid increases the mobility of the impurities in the space.

In this embodiment, the top wall of the housing 1 is understood to be the top wall of the housing 1 where the drain hole 13 is provided when the ball 2 faces downward with respect to the ground.

In a preferred embodiment, further specifically, the housing 1 includes a housing body 14 and a support base 15 mounted on the housing body 14, the housing body 14 has a mounting cavity 11 therein, the support base 15 extends into the mounting cavity 11, and the support base 15 has a support surface. In the embodiment shown in fig. 2, the edge of the portion of the support seat 15 extending into the mounting cavity 11 is provided with a drain space 12, and the drain space 12 can be provided with a sub-bead 3 to promote the movement of impurities to the drain hole 13. In addition, shell body 14 and supporting seat 15 are split type, and according to the design demand, supporting seat 15 and shell body 14 can select suitable material to process respectively, and supporting seat 15 can process into corresponding structure alone according to the blowdown demand moreover, can reduce the processing degree of difficulty.

In more detail, as for the structure of the supporting seat 15, an annular supporting rib 151 extending toward the inner wall of the housing body 14 is formed at the edge of the supporting seat 15, and the annular supporting rib 151 shields a part of the space of the drain hole 13. As shown in fig. 2, the annular supporting rib 151 can prevent the sub bead 3 below from entering the drain hole 13, so that the aperture of the drain hole 13 can be increased on the premise that the sub bead 3 does not enter the drain hole 13, so as to improve the effect of discharging impurities out of the installation cavity 11. In addition, since the foreign matter has a tendency to return to the installation cavity 11 under the action of its own weight, the annular supporting rib 151 shields a part of the space of the drain hole 13, thereby being able to prevent the foreign matter from returning to the installation cavity 11.

A further optimization is that a dirt guiding gap 16 is arranged between the upper surface of the annular supporting rib 151 and the inner surface of the shell 1, and the dirt guiding gap 16 forms a part of the sewage channel. In the embodiment shown in fig. 2, under the rolling action of the auxiliary bead 3, a part of the impurities can directly enter the sewage drain hole 13, and a part of the impurities can firstly enter the sewage guide gap 16 and then enter the sewage drain hole 13.

The dirt guiding gap 16 provides a storage space for the impurities, and in case that the impurities are not discharged from the drain hole 13 in time, part of the impurities can be temporarily stored in the dirt guiding gap 16, thereby preventing the impurities from being extruded in the installation cavity 11. In addition, when the space of the blowdown space 12 corresponding to the blowdown hole 13 is blocked, the auxiliary bead 3 can drive impurities to move along the edge of the annular supporting rib 151, and as the space of the blowdown hole 13 is blocked by the annular supporting rib 151 and the upper part of the annular supporting rib 151 is provided with the dirt guiding gap 16, the impurities can enter the dirt guiding gap 16 from the unblocked position of the blowdown space 12. Since the rolling bodies vibrate during operation, impurities in the dirt guiding gap 16 can flow under the action of vibration, and when the impurities flow to the position where the dirt discharging hole 13 is blocked by the annular supporting ribs 151, the impurities can be discharged from the dirt discharging hole 13 and can be discharged from other dirt discharging holes 13.

Further, the radial dimension of the dirt guiding gap 16 is smaller than the outer diameter of the auxiliary bead 3, so that the movable range of the auxiliary bead 3 can be limited, the auxiliary bead 3 in the dirt discharging space 12 is prevented from entering the dirt guiding gap 16, and further, the auxiliary bead 3 is prevented from entering the dirt discharging hole 13 to block the discharge of impurities, and the dirt discharging process is smoother. And, since the sub-beads 3 cannot enter the drain hole 13, the inner diameter of the drain hole 13 can be increased to improve the drain efficiency.

In a preferred embodiment, further specifically, the side wall of the housing 1 is provided with a drain hole 13, the drain hole 13 constituting a part of the drain channel. As shown in fig. 3, under the rolling action of the sub-beads 3 and the vibration action of the rolling bodies, the foreign substances can be discharged from the drain hole 13 of the side wall of the housing 1, and the foreign substances are not easily returned into the installation cavity 11 from the drain hole 13 due to self gravity.

Further specifically, the position of the drain hole 13 is higher than the position of the auxiliary bead 3 positioned in the drain space 12, and the radial dimension of the drain space 12 near the drain hole 13 is smaller than the outer diameter of the auxiliary bead 3. As shown in fig. 3, the auxiliary bead 3 of the sewage disposal space 12 is located at the lower side of the sewage disposal hole 13, and can prevent the auxiliary bead 3 from shielding and blocking the sewage disposal hole 13, so that impurities can move to the position of the sewage disposal hole 13 under the rolling action of the auxiliary bead 3, and the impurities can be conveniently discharged from the sewage disposal hole 13. In addition, the movable range of the auxiliary bead 3 is limited, the auxiliary bead 3 of the sewage disposal space 12 is difficult to enter the sewage disposal hole 13, and the auxiliary bead 3 can be further prevented from blocking and blocking the sewage disposal hole 13.

For the mounting of the support base 15, in a preferred embodiment, further specifically, the top wall of the housing body 14 is provided with a threaded hole, and a threaded post 152 is formed above the support base 15, the threaded post 152 being screwed into the threaded hole. As shown in fig. 2, the threaded column 152 of the support seat 15 can move up and down along the threaded hole, so that the pressure applied by the support seat 15 to the auxiliary ball 3 and the ball 2 can be adjusted, the excessive pressure of the support seat 15 to the auxiliary ball 3 and the ball 2 is prevented, and the rolling fluency of the auxiliary ball 3 and the ball 2 is improved. And further, on the premise of ensuring the rolling performance of the auxiliary beads 3 and the balls 2, the mobility of impurities under the rolling action of the auxiliary beads 3 can be improved. In addition, the support seat 15 is fixed in a simple and quick way by adopting a threaded connection mode, and is easy to install and detach.

In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for system embodiments, since they are substantially similar to method embodiments, the description is relatively simple, as relevant to see a section of the description of method embodiments.

The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and changes may be made to the present application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. which are within the spirit and principles of the present application are intended to be included within the scope of the claims of the present application.

Claims

1. The rolling body is characterized by comprising a shell, a ball and a plurality of auxiliary balls, wherein a mounting cavity is formed in the shell, the ball and the plurality of auxiliary balls are arranged in the mounting cavity, and part of the ball extends out of the lower side of the shell; the inner wall of the shell is provided with a supporting surface, the auxiliary beads are arranged between the supporting surface and the balls, a sewage disposal channel communicated with the mounting cavity is formed at the edge of the supporting surface of the shell, and the auxiliary beads can move to the sewage disposal channel;

the top wall of the shell is provided with a drain hole, and the drain hole forms a part of the drain channel;

the shell comprises a shell body and a supporting seat arranged in the shell body, wherein the installation cavity is formed in the shell body, a part of the supporting seat extends into the installation cavity, the supporting seat is provided with a supporting surface, a sewage draining space is formed at the edge of the part of the supporting seat extending into the installation cavity, on any section of the ball, at least one auxiliary bead separated from the ball is contained in the sewage draining space, an annular supporting rib extending towards the inner wall of the shell body is formed at the edge of the supporting seat, a sewage guiding gap is formed between the upper surface of the annular supporting rib and the inner surface of the shell, and the sewage guiding gap forms a part of the sewage draining channel.

2. The rolling element of claim 1 wherein the annular support bead obscures a portion of the space of the drain hole.

3. Rolling element according to claim 2, characterized in that the radial dimension of the dirt guiding gap is smaller than the outer diameter of the secondary bead.

4. Rolling element according to claim 1, characterized in that the top wall of the housing body is provided with a threaded hole, and that the support seat is formed with a threaded post which is screwed into the threaded hole.

5. The rolling body is characterized by comprising a shell, a ball and a plurality of auxiliary balls, wherein a mounting cavity is formed in the shell, the ball and the plurality of auxiliary balls are arranged in the mounting cavity, and part of the ball extends out of the lower side of the shell; the inner wall of the shell is provided with a supporting surface, the auxiliary beads are arranged between the supporting surface and the balls, a sewage disposal channel communicated with the mounting cavity is formed at the edge of the supporting surface of the shell, and the auxiliary beads can move to the sewage disposal channel;

the side wall of the shell is provided with a drain hole, and the drain hole forms a part of the drain channel;

6. The rolling element of claim 5 wherein the trapway is located higher than the secondary bead located in the trapway, and the radial dimension of the trapway adjacent the trapway is less than the outer diameter of the secondary bead.

7. The rolling element of claim 5 wherein the annular support bead obscures a portion of the space of the drain hole.

8. The rolling element of claim 7 wherein the dirt guiding gap has a radial dimension less than the outer diameter of the secondary bead.

9. The rolling element of claim 5 wherein the top wall of the housing body is provided with a threaded bore and the support seat is formed with a threaded post thereon which is threaded into the threaded bore.