Self-rotating cantilever carrier roller

Abstract

The utility model belongs to the technical field of belt conveyors. The self-rotating cantilever carrier roller is characterized by comprising a carrier roller shaft; the carrier roller assembly is arranged on the carrier roller shaft through a bearing assembly, the bearing assembly is located in the carrier roller assembly, and the bearing assembly comprises a deep groove ball bearing arranged on the carrier roller shaft, and the deep groove ball bearing can axially slide on the carrier roller shaft; and the double-row self-aligning roller bearing is arranged on the carrier roller shaft. The self-rotating cantilever carrier roller is used for solving the technical problem that an existing self-rotating cantilever carrier roller adopts a tapered roller bearing and is prone to being stuck.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of belt conveyor, concretely relates to a self-rotating cantilever carrier roller for belt conveyor. BACKGROUND

[0002] The self-rotating cantilever carrier roller for the existing belt conveyor adopts the bearing built-in mode, the bearing is placed in the inclined carrier roller, the bearing adopts the tapered roller bearing, the bearing has higher assembly play requirement, when the locking torque is too large or the bearing play is too small due to thermal expansion and cold shrinkage, the bearing generates serious heat, even is locked, and the whole has higher manufacturing requirement. CONTENT OF THE UTILITY MODEL

[0003] The utility model discloses a self-rotating cantilever carrier roller, which aims to solve the technical problem that the existing self-rotating cantilever carrier roller adopts the tapered roller bearing and is easy to be locked.

[0004] To solve the above technical problem, the utility model adopts the following technical scheme, a self-rotating cantilever carrier roller, characterized by comprising:

[0005] A carrier roller shaft;

[0006] A carrier roller assembly is arranged on the carrier roller shaft through a bearing assembly, the bearing assembly is located in the interior of the carrier roller assembly, and the bearing assembly comprises:

[0007] A deep groove ball bearing is arranged on the carrier roller shaft, and the deep groove ball bearing can axially slide on the carrier roller shaft;

[0008] A double-row self-aligning roller bearing is arranged on the carrier roller shaft.

[0009] The utility model discloses a cantilever carrier roller bottom that adopts the double-row self-aligning roller bearing, completely satisfies the axial force requirement, and is easy to manufacture with loose installation locking torque requirement; the upper part adopts the deep groove ball bearing, rotation resistance is small, and a small amount of axial sliding is allowed, so that bearing lock caused by size change is avoided.

[0010] To solve the technical problem of how the carrier roller assembly is realized, the utility model adopts the following technical scheme, and the carrier roller assembly comprises:

[0011] A carrier roller shell, two ends of the carrier roller shell are respectively provided with a front sealing plate and a tail sealing plate;

[0012] A carrier roller inner shell is coaxially arranged in the carrier roller shell through radial rib plates; and the carrier roller inner shell is arranged on the carrier roller shaft through the bearing assembly.

[0013] In order to solve the technical problem that dust easily enters the inner shell of the carrier roller and causes the bearing to be stuck, the utility model adopts the following technical scheme, the dustproof sleeve is arranged coaxially on the first sealing plate, the first sealing piece is arranged on the carrier roller shaft outside the first sealing plate, which is used for preventing dust from entering the carrier roller shell.

[0014] In order to solve the technical problem that dust easily enters the inner shell of the carrier roller and causes the bearing to be stuck, the utility model adopts the following technical scheme, the dustproof sleeve is arranged coaxially on the first sealing plate, the first sealing piece is arranged on the carrier roller shaft outside the first sealing plate, which is used for preventing dust from entering the carrier roller shell.

[0015] In order to solve the technical problem that dust easily enters the inner shell of the carrier roller and causes the bearing to be stuck, the utility model adopts the following technical scheme, the dustproof sleeve is arranged coaxially on the first sealing plate, the first sealing piece is arranged on the carrier roller shaft outside the first sealing plate, which is used for preventing dust from entering the carrier roller shell.

[0016] The other end of the carrier roller inner shell is provided with a third stepped hole for installing the double-row self-aligning roller bearing, a second mounting hole is arranged on the third stepped hole for installing a second retainer, and the second retainer is used for limiting the outer side of the outer ring of the double-row self-aligning roller bearing.

[0017] In order to solve the technical problem that dust easily enters the inner shell of the carrier roller and causes the bearing to be stuck, the utility model adopts the following technical scheme, the dustproof sleeve is arranged coaxially on the first sealing plate, the first sealing piece is arranged on the carrier roller shaft outside the first sealing plate, which is used for preventing dust from entering the carrier roller shell.

[0018] A first mounting hole is arranged on the second stepped hole for installing a first retainer, and the first retainer is used for limiting the second sealing piece. The second sealing piece is added to the end of the carrier roller, which further reduces the influence of dust on the center bearing and effectively prolongs the service life of the carrier roller.

[0019] In order to solve the technical problem that dust easily enters the inner shell of the carrier roller and causes the bearing to be stuck, the utility model adopts the following technical scheme, the dustproof sleeve is arranged coaxially on the first sealing plate, the first sealing piece is arranged on the carrier roller shaft outside the first sealing plate, which is used for preventing dust from entering the carrier roller shell.

[0020] The outer diameters of the first optical shaft, the second optical shaft, the third optical shaft and the threaded shaft are sequentially reduced.

[0021] A first step portion is formed between the first optical axis and the second optical axis. The first step portion cooperates with the first step hole to limit the deep groove ball bearing. A gap is left between the first step portion and the first step hole for the deep groove ball bearing to slide axially.

[0022] A second step portion is formed between the second optical axis and the third optical axis. The second step portion is flush with the end face of the third step hole, and is used to limit the inner side of the inner ring and the inner side of the outer ring of the double row self-aligning roller bearing, respectively.

[0023] A third step is formed between the third optical axis and the threaded shaft, and the third step is used to limit the spacer.

[0024] To solve the technical problem of inconvenient connection between the threaded shaft and the inner cap, the present invention adopts the following technical solution: the threaded shaft is tapered, making it easier for the inner cap to be threaded onto the threaded shaft.

[0025] To solve the technical problem of how to install a self-rotating cantilever idler on the conveyor housing, this utility model adopts the following technical solution: the end of the first optical shaft is provided with an idler shaft mounting hole, which facilitates the installation of the self-rotating cantilever idler on the conveyor housing.

[0026] To solve the technical problem of bearing disengagement and damage caused by the detachment of a single locking nut, this utility model adopts the following technical solution: Two locking nuts are used, sequentially fitted onto the threaded shaft from the inside out. The tail end employs a double locking nut design to prevent loosening, allowing for repeated disassembly, ensuring reliable anti-loosening, and preventing bearing disengagement and damage due to nut detachment.

[0027] To solve the technical problem of positioning and installing the stiffening plate, the present invention adopts the following technical solution: stepped portions are respectively provided at both ends of the outer side wall of the inner shell of the roller for positioning and installing the stiffening plate. Attached Figure Description

[0028] Figure 1 This is a perspective view of the self-rotating cantilever roller of this utility model;

[0029] Figure 2 This is a front view of the self-rotating cantilever roller of this utility model;

[0030] Figure 3 This is a left view of the self-rotating cantilever roller of this utility model;

[0031] Figure 4 This is a cross-sectional view of the self-rotating cantilever roller of this utility model;

[0032] Figure 5 yes Figure 4 Enlarged view of section A;

[0033] Figure 6 is Figure 4 is an enlarged view of B part in figure 1;

[0034] Figure 7 is Figure 4 is an enlarged view of C part in figure 1;

[0035] Figure 8 is a structure schematic view of the roller shaft of the self-rotating cantilevered carrier roller;

[0036] in the figure:

[0037] 10 self-rotating cantilevered carrier roller;

[0038] 100 roller shaft; 101 first optical shaft; 102 second optical shaft; 103 third optical shaft; 104 threaded shaft; 105 first step part; 106 second step part; 107 third step part; 108 roller shaft mounting hole; 150 spacer sleeve; 160 locking nut; 171 first blocking ring; 172 second blocking ring;

[0039] 200 carrier roller assembly; 210 carrier roller outer shell; 220 carrier roller inner shell; 221 first step hole; 222 second step hole; 223 third step hole; 224 first mounting hole; 225 second mounting hole;

[0040] 230 rib plate; 241 head sealing plate; 242 tail sealing plate; 250 dustproof sleeve; 260 inner sealing cap; 270 step part;

[0041] 300 bearing assembly;

[0042] 410 first sealing element; 420 second sealing element;

[0043] 500 lubricating grease. DETAILED DESCRIPTION

[0044] The utility model will be further explained in connection with the drawings.

[0045] As Figures 1-8 shown, the self-rotating cantilevered carrier roller 10, including the roller shaft 100, the carrier roller assembly 200, the bearing assembly 300.

[0046] As Figure 6 shown, the roller shaft 100 is a step shaft.The roller shaft 100 includes sequentially arranged first optical shaft 101, second optical shaft 102, third optical shaft 103, threaded shaft 104.

[0047] The outer diameters of the first optical axis 101, the second optical axis 102, the third optical axis 103 and the threaded shaft 104 are sequentially reduced. The first stepped portion 105 is formed between the first optical axis 101 and the second optical axis 102. The second stepped portion 106 is formed between the second optical axis 102 and the third optical axis 103. The third stepped portion 107 is formed between the third optical axis 103 and the threaded shaft 104.

[0048] As shown in Figure 1 , the end of the first optical axis 10 is provided with a carrier roller shaft mounting hole 108.

[0049] The threaded shaft 104 is preferably conical.

[0050] As shown in Figure 4 , the carrier roller assembly 200 includes a carrier roller outer shell 210 and a carrier roller inner shell 220.

[0051] The two ends of the carrier roller outer shell 210 are respectively provided with a head sealing plate 241 and a tail sealing plate 242. A dustproof sleeve 250 is coaxially arranged on the head sealing plate 241.

[0052] In one embodiment, as shown in Figure 5 , a first sealing member 410 is arranged on the carrier roller shaft 100 outside the head sealing plate 241, for preventing dust from entering the carrier roller outer shell. The first sealing member 410 is preferably a felt dustproof ring.

[0053] The carrier roller inner shell 220 is coaxially arranged in the carrier roller outer shell 210 via a radial rib plate 230. In one embodiment, the two ends of the outer sidewall of the carrier roller inner shell 220 are respectively provided with stepped portions 270 for positioning and mounting the rib plate 230.

[0054] An inner sealing cap 260 is arranged on the end of the carrier roller inner shell 220 where the tail sealing plate 242 is located. Specifically, an outer thread is machined on the outer circumferential surface of the end of the carrier roller inner shell 220. A thread is machined on the inner sidewall of the inner sealing cap 260. The inner sealing cap 260 is threadedly connected with the carrier roller inner shell 220.

[0055] One end of the carrier roller inner shell 220 is sequentially provided with a first stepped hole 221 and a second stepped hole 222 from inside to outside.

[0056] The first stepped hole 221 is used for mounting a bearing assembly 300.

[0057] The second stepped hole 222 is used for mounting a second sealing member 420. Preferably, the number of the second sealing member 420 is two, and the two second sealing members 420 are sequentially sleeved on the carrier roller shaft 100 from inside to outside.

[0058] A first mounting hole 224 is arranged on the second stepped hole 222, for mounting a first retainer ring 171, which is used for limiting the first sealing member 420.

[0059] The other end of the idler inner shell 220 is provided with a third stepped hole 223, which is used for mounting a bearing assembly 300.

[0060] The idler assembly 200 is arranged on the idler shaft 100 via the bearing assembly 300, and the bearing assembly 300 is located inside the idler assembly 200. Specifically, the idler inner shell 220 is arranged on the idler shaft 100 via the bearing assembly 300. The bearing assembly 300 comprises a deep groove ball bearing 310 and a double-row self-aligning roller bearing 320.

[0061] As shown in Figure 6 , the deep groove ball bearing 310 is mounted on the idler 100 and located at one end inside the idler inner shell 220. The deep groove ball bearing 310 can axially slide on the idler shaft 100. Specifically, the first stepped portion 105 cooperates with the first stepped hole 221 to limit the deep groove ball bearing 310, and a gap is left between the first stepped portion 105 and the first stepped hole 221 for the axial sliding of the deep groove ball bearing.

[0062] As shown in Figure 7 , the double-row self-aligning roller bearing 320 is mounted on the idler 100 and located at the other end of the idler inner shell 220. Specifically, the second stepped portion 106 is flush with the end face of the third stepped hole 223, and is respectively used for limiting the inner side of the inner ring and the outer side of the outer ring of the double-row self-aligning roller bearing 320.

[0063] The second mounting hole 225 is arranged on the third stepped hole 223 of the idler inner shell 220, and is used for mounting the second retainer 172. The second retainer is used for limiting the outer side of the outer ring of the double-row self-aligning roller bearing.

[0064] The spacer sleeve 150 is arranged on the threaded shaft 104 from inside to outside, and the locking nut 160 is arranged on the threaded shaft 104 from inside to outside. The spacer sleeve 150 is used for limiting the outer side of the inner ring of the double-row self-aligning roller bearing 320, and the left side of the spacer sleeve 150 is limited by the third stepped portion 107. The number of the locking nuts 160 is preferably two, and the two locking nuts 160 are sequentially sleeved on the threaded shaft 104 from inside to outside.

[0065] The space surrounded by the deep groove ball bearing 310, the double-row self-aligning roller bearing 320, the idler shaft 100 and the idler inner shell 220 is filled with lubricating grease 500.

[0066] The bottom part of the utility model adopts double-row self-aligning roller bearing, completely satisfies axial force requirement, and is loose to installation locking torque, and is easy to manufacture, the upper part adopts deep groove ball bearing, rotation resistance is small, and a small amount of axial slip is allowed, and bearing jamming caused by size change is avoided.

[0067] The tail part of the utility model adopts double locking nuts to prevent loosening, has the possibility of repeated disassembly, the loosening is reliable, and the bearing is prevented from being separated and damaged due to nut falling out.

[0068] The utility model discloses lower precision requirement, avoid the problem of jamming caused by thermal deformation, reduce the rotation power consumption, strengthen the sealing effect, prolong the service life.

[0069] The above embodiment is only for illustrating the technical features and concept of the utility model, and the purpose is to enable the person skilled in the art to understand the content of the utility model and implement it, and cannot limit the protection scope of the utility model, and any equivalent change or modification according to the spirit and implementation of the utility model should be covered in the protection scope of the utility model.

Claims

1. A self-rotating idler roll characterized in that, The application relates to a supporting roller shaft and a supporting roller assembly. The supporting roller assembly is arranged on the supporting roller shaft through a bearing assembly, and the bearing assembly is arranged inside the supporting roller assembly. The supporting roller assembly comprises: A supporting roller shell, two ends of the supporting roller shell are respectively provided with a front sealing plate and a tail sealing plate; A supporting roller inner shell is coaxially arranged in the supporting roller shell through a radial rib plate; and the supporting roller inner shell is arranged on the supporting roller shaft through the bearing assembly.

2. A self-rotating idler as set forth in claim 1, wherein, A dustproof sleeve is coaxially arranged on the front sealing plate, and a first sealing piece is arranged on the supporting roller shaft outside the front sealing plate to prevent dust from entering the supporting roller shell. An inner sealing cap is arranged on the end of the supporting roller inner shell corresponding to the tail sealing plate. A first stepped hole is arranged on one end of the supporting roller inner shell and used for mounting a deep groove ball bearing; 3. A self-rotating idler as set forth in claim 2 wherein, A third stepped hole is arranged on the other end of the supporting roller inner shell and used for mounting a double-row self-aligning roller bearing; a second mounting hole is arranged on the third stepped hole and used for mounting a second retainer ring; and the second retainer ring is used for limiting the outer side of an outer ring of the double-row self-aligning roller bearing.

4. The self-rotating idler roller of claim 2, wherein, A second stepped hole is arranged on the outer side of the first stepped hole and used for mounting a second sealing piece; the number of the second sealing pieces is two; and the two second sealing pieces are sequentially sleeved on the supporting roller shaft from inside to outside.

5. The self-rotating idler roller of claim 2, wherein, A first mounting hole is arranged on the second stepped hole and used for mounting a first retainer ring; and the first retainer ring is used for limiting the second sealing piece. The supporting roller shaft is a stepped shaft, and the supporting roller shaft comprises a first light shaft, a second light shaft, a third light shaft and a threaded shaft arranged in sequence; a spacer sleeve and a locking nut are sequentially arranged on the threaded shaft from inside to outside; and the spacer sleeve is used for limiting the outer side of an inner ring of the double-row self-aligning roller bearing.

6. A self-rotating idler roller as set forth in claim 5 wherein, The outer diameters of the first light shaft, the second light shaft, the third light shaft and the threaded shaft are sequentially reduced. A first stepped portion is formed between the first light shaft and the second light shaft, the first stepped portion is matched with the first stepped hole and used for limiting the deep groove ball bearing, and a gap is left between the first stepped portion and the first stepped hole for axial sliding of the deep groove ball bearing.

7. The self-rotating idler roller of claim 5, wherein, A second stepped portion is formed between the second light shaft and the third light shaft, the second stepped portion is flushly arranged on the end face of the third stepped hole and used for limiting the inner side of the inner ring and the inner side of the outer ring of the double-row self-aligning roller bearing. A third stepped portion is formed between the third light shaft and the threaded shaft, and the third stepped portion is used for limiting the spacer sleeve. The threaded shaft is conical. An end portion of the first light shaft is provided with a supporting roller shaft mounting hole. The number of the locking nuts is two, and the two locking nuts are sequentially sleeved on the threaded shaft from inside to outside.

8. A self-rotating idler roller as set forth in claim 7 wherein, Step portions are arranged on the two ends of the outer side wall of the supporting roller inner shell and used for positioning and mounting the rib plate. ​ 9. The self-rotating idler roller of claim 7, wherein, ​ 10. The self-rotating idler roller of claim 2, wherein, ​

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