CN111470284A - a conical roller - Google Patents

Abstract

The invention relates to the technical field of equipment in the logistics industry, in particular to a conical roller, comprising an inner roller. The conical outer cylinder is composed of a tapered sleeve, wherein at least one segment of the tapered sleeve is fixed on the inner roller through a rigid connecting piece, which is more flexible in use and has a better fixing effect.

Description

a conical roller

technical field

The invention relates to the technical field of equipment in the logistics industry, in particular to a conical roller.

Background technique

The tapered roller is the core component of the curved conveyor. The different diameters of the large and small heads of the rollers generate different linear speeds during operation to realize the curved conveying of goods.

There are two main types of tapered rollers commonly used in the market. 1. Steel tapered rollers: This type of roller is made of steel as a whole, and the processing technology is complex. It is processed by die extrusion, forging, polishing and galvanizing. The time is long, the cost is high, and it is not environmentally friendly. The fault tolerance rate of this type of roller is low. If there is damage, the whole needs to be replaced, and the weight is very heavy, which is not conducive to installation and use; 2. Tapered sleeve type rollers, in conventional On the basis of the cylindrical inner roller, a peripheral tapered sleeve is fitted to meet the requirements of the tapered roller. Axial force causes the tapered sleeve roller to disengage and offset after a period of use, which cannot meet the normal use. b. Larger tapered sleeves, due to the long distance between the force position and the support position, the existing structural strength Not enough, it is very likely that the cone sleeve will collapse and deform after use. c. Some manufacturers will apply glue on the cone sleeve to improve the connection strength between the roller and the cone sleeve, but it is still easy to appear after long-term use. Different degrees of taper sleeve offset phenomenon.

Another example is the Chinese patent whose publication number is CN103895219B, which discloses a tapered roller for making Fresnel lenses, which includes a left fixed shaft 1, a roller body 2 and a right fixed shaft 3, 3 that are fixedly connected in turn. 2 is formed by stacking a plurality of annular belt microstructures 4 whose diameters decrease in turn from left to right. The annular belt microstructure 4 is a ring-shaped ridge arranged on the side of the roller body 2, which is cut through the section of the axis of the roller body 2. The profile of the surface of the roller body 2 and the profile of the Fresnel lens formed by the bidirectional extension of its radius along the direction parallel to the axis are cut.

Lines are matched; positioning holes 5 are provided on the outer end surfaces of the left fixed shaft 1 and the right fixed shaft 3, the structure is simple, and the rolling forming effect is good. The obtained Fresnel lens is an integral structure without splicing marks and has good optical performance , the diameter of the Fresnel lens is not limited by the machine tool, and meets the large-scale requirements of projection screens and solar concentrators. This combined cone-sleeve structure has already appeared, but the biggest problem with this structure in terms of logistics is long-term use. During the process, the instability is too large and it is easy to cause failure;

Another example is a PVC tapered sleeve roller for roller conveyors disclosed in Chinese Patent Publication No. CN209352110U, which relates to the technical field of roller conveyor parts, including a roller and a tapered sleeve, and the tapered sleeve includes an upper tapered sleeve and a lower tapered sleeve. A cone sleeve, a plurality of clamping devices are fixedly installed on the lower surface of one side of the upper cone sleeve, and the upper cone sleeve is connected with the upper surface of one side of the lower cone sleeve through the clamping device. A first opening is formed on the upper surface of the other side, and a fixing groove is formed inside the first opening. The roller conveyor uses PVC tapered sleeve rollers. On the one hand, the upper tapered sleeve and the lower tapered sleeve are fastened to the roller by the clamping device, and the friction force of the roller is increased by the upper tapered sleeve and the lower tapered sleeve. The upper and lower sides of the roller are fixed between the upper cone sleeve and the lower cone sleeve through the cooperation of the bump and the groove, and one end of the roller is connected to the conveyor belt. The conveyor belt drives the roller and the cone sleeve to roll, and the transportation This kind of overall structure composed of upper and lower cone sleeves is used in the logistics industry, the strength will not be enough, there is still a problem of stability, and it is easier to deform, and it cannot be well used in the process of turnover. The processing of turning the item on the line.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a conical roller with a more flexible and better fixing effect.

The above technical purpose of the present invention is achieved through the following technical solutions: a conical roller, including an inner roller, the outer periphery of the inner roller is sleeved with a plurality of sections along the axial direction of the inner roller. The conical outer cylinder is composed of the received sub-conical sleeves, wherein at least one sub-conical sleeve is fixed on the inner roller through a rigid connecting piece.

As a preference of the present invention, the sub-cone sleeve is a plastic sleeve or a plastic sleeve.

As a preference of the present invention, the rigid connecting member is a screw, a bolt, a pin or a rivet.

As a preferred option of the present invention, the inner roller is provided with a locking hole through which the rigid connecting piece can pass and be locked along its radial direction.

As a preference of the present invention, a mounting piece that can be abutted on the inner roller is integrally connected to the sub-cone sleeve, and the mounting piece is provided with a radial direction through the inner roller and is connected with the locking aperture. to the connected mounting locating holes.

Preferably, the positioning hole is a bar-shaped hole extending along the axial direction of the inner roller, and the length of the positioning hole extending axially of the inner roller is greater than the diameter of the locking hole.

As a preference of the present invention, among all the sub-cone sleeves, at least one group of adjacent sub-cone sleeves is clamped.

As a preference of the present invention, a snap-fit piece and a snap-fit groove are respectively provided on the two adjacent sub-cone sleeves.

As a preferred embodiment of the present invention, the inner roller includes a roller shaft and a steel tube body rolling around the roller shaft, and the inner wall of the sub-taper sleeve is integrally connected with a reinforcing rib that can abut against the outer wall of the steel tube tube.

As a preference of the present invention, an end sealing cover installed on the steel tube cylinder is provided on the large end side of the conical outer cylinder.

The beneficial effects of the present invention are as follows: 1. As different equipment requirements, the length of the entire roller is different, in order to meet the different equipment requirements, the taper sleeve is multi-section splicing method to achieve different size requirements;

2. Effectively prevent the problems of the existing tapered sleeve rollers after long-term use. The tapered sleeves and the tapered sleeves are connected one by one through splicing to realize all the tapered sleeves as a whole, and strengthen the connection between the tapered sleeve and the inner roller. connection strength.

3. Effectively solve the problem of the deviation of the taper sleeve on the side of the largest segment. Through the design of the end sealing cover, the taper sleeve will not be displaced to the side of the largest segment taper sleeve, escape and other undesirable phenomena can be effectively prevented.

4. The rigid mechanical fixing design of the taper sleeve prevents the taper sleeve from shifting and escaping to the side of the small section, and the taper sleeve is connected with the section, which can effectively prevent the radial rotation of the entire conical outer cylinder.

5. The Y-shaped structure of the reinforcing ribs of the large-section taper sleeve can greatly improve the load capacity of the taper sleeve.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the tapered roller in the embodiment of the present invention after removing two of the tapered sleeves a;

Fig. 2 is the enlarged view of I place in Fig. 1;

3 is a schematic three-dimensional structure diagram of a taper sleeve of one of the styles in the embodiment of the present invention;

4 is a schematic three-dimensional structural diagram of the segmented taper sleeve that is rigidly connected to the inner roller 1 in a disassembled state in the embodiment of the present invention;

Fig. 5 is the three-dimensional structure schematic diagram after wherein three continuous sub-cone sleeves are arranged in sequence;

FIG. 6 is a schematic three-dimensional structure diagram from another perspective of FIG. 5;

Fig. 7 is the three-dimensional schematic diagram of the smallest two adjacent sub-cone sleeves arranged in sequence;

8 is a schematic three-dimensional structure diagram of another style of the taper sleeve in the embodiment of the present invention;

FIG. 9 is a schematic three-dimensional structure diagram of the whole conical roller after assembly;

Fig. 10 is the three-dimensional structure schematic diagram of the largest pitch cone sleeve of the conical roller;

Figure 11 is a cross-sectional view of Figure 9 axially cut away;

Fig. 12 is the enlarged view of II in Fig. 11;

Fig. 13 is a schematic perspective view of the structure of the conical roller at the right end of the disassembled state.

Detailed ways

The following specific examples are only to explain the present invention, but not to limit the present invention. Those skilled in the art can make modifications without creative contribution to the present examples as needed after reading this specification, but as long as the rights of the present invention are used All claims are protected by patent law.

For example, as shown in Figures 1-13, a tapered roller includes an inner roller 1. The inner roller 1 can adopt the existing roller structure, generally including a left bearing assembly b1 and a right bearing assembly b2, which can be A conventional roller end bearing support assembly with bearings is used, and a roller shaft 11 is set on the bearing between the left bearing assembly b1 and the right bearing assembly b2, and the two ends are sleeved on the left and right bearing assemblies and surround the bearing assembly. The steel tube body 12 rolled by the roller shaft 11, the outer periphery of the inner roller 1 is sleeved with a conical outer cylinder composed of a number of sub-cone sleeves a that are connected end to end along the axial direction of the inner roller 1. 2. At least one sub-cone sleeve a is fixed on the inner roller 1 through a rigid connector x, and the outer side wall surface of the sub-cone sleeve here is a conical surface structure, and the outer wall of each sub-cone sleeve a is on the shaft. The cross section is a circular structure, so the radial diameter of the outer side wall of each sub-cone sleeve a in the axial direction gradually increases from small to large, and at the same time, the overall size of the adjacent sub-cone sleeve a gradually increases. , the scheme of this example is an example of a structure that gradually increases from left to right, that is, the leftmost taper sleeve a is the smallest taper sleeve, the rightmost taper sleeve a is the largest taper sleeve, and the middle is the largest taper sleeve. Gradually larger arrangement of sub-tapered sleeve queues. Among the two adjacent sub-cone sleeves a, the large end of the small-sized sub-cone sleeve a should be connected to the small end of the large-sized sub-cone sleeve, and try to keep the diameters of the outer side walls of these two ends consistent, and the same sub-cone The transition of the set will be more continuous. The focus of this application is on the rigid connector x, which can make the taper sleeve different from the previous technology and be better installed on the inner roller 1. The small-sized taper sleeve a is also called a section, and the large-size taper sleeve a is also called a section. a is also called a large section, of course, the size referred to here is relative.

Wherein, the sub-cone sleeve a is made of a plastic sleeve or a plastic sleeve, which can be realized by an injection molding process, and is processed by materials such as PP or PA, and has good physical properties. The rigid connecting element x is preferably a screw, a bolt, a pin or a rivet, and is preferably locked into the inner drum 1 in a radial direction. A preferred solution is that the inner roller 1 is provided with a locking hole k through which the rigid connecting member x is radially passed and locked. In addition, the steel tube body 12 in the inner roller 1 will be a cylindrical roller, and the locking hole k only needs to be opened in the steel tube body 12, and the openings are carried out along the radial direction. In order to cooperate with this installation structure, the sub-cone sleeve a is integrally connected with a mounting piece p that can abut on the inner roller 1, which can preferably be integrally connected to the small end of the sub-cone sleeve a. The mounting piece p It is an arc-shaped sheet-like structure extending along the axial direction, and there is a mounting and positioning hole p0 which penetrates radially through the inner roller 1 and can be communicated with the locking hole k radially. The mounting and positioning hole p0 can be designed A strip hole extending along the axial direction can increase the installation position margin and facilitate installation. Of course, the axial length of the installation positioning hole p0 should be greater than the diameter of the locking hole k, and the installation positioning hole p0 in the circumferential direction. The width should be as consistent as possible with the diameter of the locking hole k, so as to reduce the rotation of the mounting piece p on the radial surface, that is, the displacement in the circumferential direction, and further improve the stability. The axially extending strip hole of the inner roller 1, the length of the positioning hole p0 extending axially of the inner roller 1 is greater than the diameter of the locking hole k. In order to hide the installation piece p, it is further preferred that the end of the sub-cone sleeve a is integrally connected with a section s1 radially toward the axial direction, and then, the inner constriction section s1 is integrally connected with another sub-cone that can extend into the adjacent one. In the sleeve a, where the mounting piece p is preferably arranged at the small end, then the mounting piece p extends axially to the left into another point adjacent to the small head end of the sub-cone sleeve a with the mounting piece p. Inside the cone sleeve a. During assembly, the locking hole k and the installation positioning hole p0 are butted together, and the rigid connector x is used for radial locking, so that the taper sleeve a can be firmly locked on the steel pipe barrel 12 It can also ensure that the position of the other sub-taper sleeves a is more stable, reducing the axial and radial displacement.

In order to further optimize the structure of the entire roller, among all the sub-cone sleeves a, at least one group of adjacent sub-cone sleeves a is clamped. Before describing the snap-on structure, this embodiment also needs to introduce a structure, that is, the adjacent sub-cone sleeves a can be stacked by using a socket-joint structure. Therefore, at the left and right ends of the sub-cone sleeves a The part can be integrally connected with an inserting piece c that can be inserted into the adjacent sub-cone sleeves. The inserting piece c is preferably designed at the left end of the sub-conical sleeve a in this embodiment, that is, the small head side, and the inserting piece c is on the radially outer side. The surface should preferably be able to be inserted into the sleeve of the right end part of the adjacent front taper sleeve a on the left side and have a certain abutment force with the inner wall of the sleeve. The inner wall of the sub-cone sleeve a is preferably integrally connected with reinforcing ribs j distributed in a circular array and extending in the axial direction, and the circumferential distance between two adjacent reinforcing ribs j in the circumferential direction can be adjacent to the right side. The circumferential direction of the insertion piece c on the sub-cone sleeve is consistent, so that the insertion piece c can be inserted into the big end of the previous sub-conical sleeve, and can be inserted into the interval between two circumferentially adjacent reinforcing ribs j, to obtain the circumferential direction limit, reduce the circumferential rotation between the two taper sleeves.

The design of the above-mentioned snap connection is to make the insertion and socket connection between the adjacent sub-cone sleeves more stable. The solution is as follows: the two adjacent sub-cone sleeves a are respectively provided with an engaging piece h1 and a clamping slot h2. The snap connection is carried out by designing an inverted buckle structure. The engaging piece h1 also needs to be inserted into the previous taper sleeve. Therefore, the aforementioned inserting piece c can be used as the base of the engaging piece h1. For example, the inserting piece c is an arc-shaped piece extending axially and its radial The inner and outer surfaces are smooth surfaces, then the engaging piece h1 can be integrally connected with an axially extending clip h10 on the radially outer surface of the inserting piece c on the contact of the inserting piece c, and the clamping groove h2 can be directly formed in the The inner wall of the sub-cone sleeve can also be integrally connected with an arc-shaped convex strip h20 extending in the circumferential direction and protruding on the radial axis, and a stepped groove is formed between the arc-shaped convex strip h20 and the inner wall of the sub-conical sleeve to form a stepped groove. Used as card slot h2.

In addition, the structure of the reinforcing rib j is also mentioned above. Since the steel tube cylinder 12 is cylindrical, and the taper sleeve is a conical structure, the thickness of the sleeve is generally uniform, and the radial direction of the reinforcing rib j is The size is also gradually increased along the axial direction, so that the side of the reinforcing rib j close to the shaft can better abut the steel tube cylinder 12, that is, a number of reinforcing ribs j in a circular array in the same sub-cone sleeve are close to the shaft. One end is to surround and form an inner ring through which the steel pipe cylinder 12 passes through and is sheathed, and the diameter of the inner ring formed by each sub-taper sleeve reinforcing rib is controlled as much as possible to ensure that the degree of fit with the steel pipe cylinder 12 is uniform. force is better. In particular, the reinforcing rib on the large-section tapered sleeve is integrally connected to a part of the shaft with an axially extending and arc-shaped reinforcing rib j0, whose circumferential length is greater than the thickness of the reinforcing rib, and the reinforcing rib j0 and The connection point of the reinforcing rib j divides the reinforcing bonding rib j0 into two halves to form a Y-shaped structure.

In addition, the big end of the conical outer cylinder 2, that is, the big end of the right largest segmented taper sleeve, is provided with an end sealing cover 3 installed on the steel pipe cylinder 12, and the end cover can also be used injection model. The bearing seat of the right bearing assembly b2 can be integrally connected with an annular limit plate m, and the bearing seat can also be made of injection molded parts. , and the left side of the end seal cover 3 blocks the right end face of the largest segment taper sleeve for limiting, and the left part of the bearing seat of the right bearing assembly b2 needs to be tightly sleeved into the steel pipe cylinder 12. Well, the inner right side of the steel tube cylinder 12 can also abut against the left side surface of the end sealing cover 3, effectively reducing the movement of the taper sleeve by fixing the tail end assembly.

A method of assembling in this embodiment is recommended below:

1. The end seal cover 3 is a structure with left and right openings, which can be inserted into the bearing seat of the right bearing assembly b2 from left to right until it abuts on the left side of the limit plate m;

2. Insert the left part of the bearing seat of the right bearing assembly b2 into the right end part of the steel pipe barrel 12, the right end face of the steel pipe barrel 12 can abut the left side of the end seal cover 3 to the right, and the roller shaft 11 It can be pre-arranged on the bearing of the right bearing assembly b2 and inserted into the steel tube body 12 together with the bearing seat, or it can be inserted into the roller shaft 11 after the entire roller is assembled;

3. Then, insert the taper sleeve a of the largest segment on the steel tube cylinder 12 from left to right, and the right end face of the taper sleeve a also abuts against the left side of the end sealing cover 3;

4. Each taper sleeve a with gradually decreasing size inserted and received from left to right in turn, when encountering the taper sleeve a with the mounting piece p, it is locked by the aforementioned locking method through the rigid connector x , the sub-taper sleeve is still inserted into the socket until the smallest segment of the leftmost sub-taper sleeve;

5,. Insert the right part of the bearing seat of the left bearing assembly b1 into the left end part of the steel tube cylinder 12 and nest it tightly, and make the right end face of the bearing seat of the left bearing assembly b1 abut against On the left end face of the steel tube body 12, of course, there is a roller shaft 11. The roller shaft 11 passes through the bearing in the left bearing assembly b1, and the entire assembly process can be completed.

In order to further optimize the structure, the left end part of the steel pipe cylinder 12 has a section exposed to the outside, as shown in FIG. 9 , the smallest section, that is, the leftmost sub-conical sleeve, does not completely wrap the steel pipe cylinder 12, that is, the conical outer cylinder The body 2 preferably does not completely surround the steel tube body 12 in the outer peripheral area of the steel tube body 12, so that the steel tube body 12 has a section of exposed parts at multiple ends that can be in contact with the article. Of course, the control of the dimensional allowance can be improved. In addition, this The left bearing assembly b1 on the side usually adopts the assembly with the wedge belt teeth on the periphery of the bearing seat. As the wedge pulley assembly, the drive belt is connected. It will touch the belt and other parts, which will affect the rotation of the roller;

On the other hand, as shown in Figure 7, the three-dimensional schematic diagram of the smallest two adjacent sub-cone sleeves arranged in sequence, that is, the structure diagram of the two leftmost sub-cone sleeves, the insert piece c mentioned above Or the engaging piece h1 is preferably arranged at the small end of the sub-cone sleeve, more precisely, it is the end structure design of the third section of the sub-cone sleeve from the left including the third section of the sub-cone sleeve, which is a better choice. and the more optimal connection method of the first and second sub-taper sleeves from the left is that the large end side of the first section of the sub-taper sleeve forms the engaging piece h1 that is inserted into the second section of the sub-taper sleeve, because the first There is no connecting part on the front side of the first section of the taper sleeve, so it needs to use the second section of the taper sleeve to connect and maintain stability, and the inner side wall of the small end part of the second section of the taper sleeve is provided with a corresponding slot h2, And the big end side of the second segment taper sleeve can continue to be set at the inner side wall. Because the slot h2 matched with the third segment taper sleeve from the left, the second segment taper sleeve can be used as the first segment taper sleeve. The watershed of each sub-cone sleeve after the third section is divided into cone sleeves, as a connecting bridge, and each sub-cone sleeve after the third section sub-cone sleeve can be regarded as a small whole, and the third section can be divided into cones The sleeve is used as a fixed source. A mounting piece p is set on the third section of the sub-conical sleeve and is rigidly fixed on the steel tube cylinder 12 through a rigid connector. The installation piece p is set at the small end of the third section of the sub-conical sleeve, and It can extend into the second segment taper sleeve, and at the same time, the small end of the third segment taper sleeve should also be provided with a snap-on piece h1 to improve the connection strength of the third segment taper sleeve and the second segment taper sleeve. Of course, the engaging piece h1 can also be inserted between the two adjacent reinforcing ribs of the former sub-taper sleeve like the inserting piece c. From the fourth section from the left to the sub-cone sleeve to the rightmost sub-cone sleeve, their small end can simply be provided with the insertion piece c, and it does not necessarily need to be provided with the structure of the engaging piece h1, which can improve the installation efficiency. Because the use of the engaging piece h1 needs to be bent a little to engage with the groove body, which requires force, so there will always be a little hidden danger, so the rear taper sleeve can reduce the use of the snapping piece. In addition, the Y-shaped structure of the reinforcing rib can be applied to at least two sub-cone sleeves at the end of the right side, because the radial dimension of this position is the largest position, and the lateral area of the sub-cone sleeve at this position is large, which is affected by The force will be more, the direction will be more unstable, and it needs to have better bearing capacity.

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited to this. Any person skilled in the art can easily think of various equivalents within the technical scope disclosed by the present invention. Modifications or substitutions should be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims (10)

1. A tapered roller, characterized in that: the roller comprises an inner roller (1), wherein a conical outer barrel (2) consisting of a plurality of sections of taper sleeves (a) which are sequentially butted end to end along the axial direction of the inner roller (1) is sleeved on the periphery of the inner roller (1), and at least one section of taper sleeve (a) is fixed on the inner roller (1) through a rigid connecting piece (x).

2. A tapered roller according to claim 1, wherein: the taper sleeve (a) is a plastic sleeve or a plastic sleeve.

3. A tapered roller according to claim 1, wherein: the rigid connecting piece (x) is a screw, a bolt, a pin or a rivet.

4. A tapered roller according to claim 3, wherein: and the inner roller (1) is provided with a locking hole (k) for the rigid connecting piece (x) to pass through and lock along the radial direction.

5. A tapered roller according to claim 4, wherein: divide the taper sleeve (a) to go up an organic whole and be connected with and paste and lean on installation piece (p) on interior roller (1), set up on installation piece (p) along interior roller (1) radially link up and with the installation locating hole (p 0) of locking hole (k) radial intercommunication.

6. A tapered roller according to claim 5, wherein: the positioning hole (p 0) is a strip-shaped hole extending along the axial direction of the inner roller (1), and the length of the positioning hole (p 0) extending along the axial direction of the inner roller (1) is larger than the diameter of the locking hole (k).

7. A tapered roller according to claim 2, wherein: at least one group of adjacent sub taper sleeves (a) in all the sub taper sleeves (a) are clamped.

8. A tapered roller according to claim 7, wherein: and the two adjacent sub-taper sleeves (a) are respectively provided with a clamping sheet (h 1) and a clamping groove (h 2).

9. A tapered roller according to claim 2, wherein: the inner roller (1) comprises a roller shaft (11) and a steel pipe cylinder body (12) rolling around the roller shaft (11), and the inner wall of the sub-taper sleeve (a) is integrally connected with a reinforcing rib(s) capable of being attached to the outer wall of the steel pipe cylinder body (12).

10. A tapered roller according to claim 9, wherein: and one side of the large end of the conical outer cylinder body (2) is provided with an end sealing cover (3) arranged on the steel tube cylinder body (12).

Images