Roller assembly with bearings easy to disassemble

Abstract

The utility model relates to the field of bearing disassembly, in particular to a roller assembly with a bearing easy to disassemble. The roller is installed on a rack and comprises a roller, a roller shaft and a rotary supporting assembly. The roller shaft is used for mounting a roller and penetrates through a dismounting channel formed in the rack; the two rotary supporting assemblies are symmetrically distributed in the axial direction relative to the roller shaft, each rotary supporting assembly comprises a connecting base detachably arranged on the rack, a bearing seat assembly detachably connected to the connecting base and a bearing detachably installed on the bearing seat assembly, the two transverse sides of the connecting base are each provided with an outwards-extending side plate part, and a prying operation space is formed between the side plate parts and the rack; and the inner ring of the bearing is sleeved on the roller shaft. When the bearing is dismounted, the bearing is not easy to damage, and the replacement cost is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bearing dismounting field, in particular to a kind of roller assembly of easy dismounting bearing. BACKGROUND

[0002] In material roll processing aspect, generally through multiple groups of roller cooperation to carry out roll, roller is installed on roll shaft, and roll shaft is installed on rack through bearing at both ends.

[0003] When roller is rolled material, it is subjected to reaction force, and after long time use, roller and roll shaft can be damaged. At this time, new roll shaft and roller need to be replaced. Current bearing is generally directly installed on roll shaft and rack, needs to use brute force to knock out bearing, and it is easy to cause damage to bearing, and when replacing new roll shaft and roller, new bearing also needs to be replaced, and replacement cost is high. UTILITY MODEL CONTENTS

[0004] The utility model aims at the problems in the background art, and proposes a kind of roller assembly of easy dismounting bearing, which is not easy to cause damage to bearing when dismounting bearing.

[0005] The technical scheme of the utility model, a kind of roller assembly of easy dismounting bearing, is installed on rack, and includes roller, roll shaft and rotating support assembly;Roll shaft is used to install roller, and roll shaft is penetrated through dismounting passage of rack;Rotating support assembly is symmetrically distributed two groups about roll shaft along axial direction, and includes detachably set on the connecting seat of rack, the bearing seat assembly of detachably connected on the connecting seat and the bearing of detachably installed on bearing seat assembly, the lateral plate part of connecting seat is formed with pry operation space between lateral plate part and rack, and the inner ring of bearing is sleeved on roll shaft.

[0006] Preferably, bearing seat assembly includes bearing seat detachably connected with connecting seat and positioning disc detachably connected with bearing seat, bearing seat has clamping passage capable of clamping bearing outer ring, positioning disc has anti-disengagement passage coaxially distributed with clamping passage, anti-disengagement passage and clamping passage are circular passages, and the diameter of anti-disengagement passage is less than the diameter of clamping passage, the diameter of anti-disengagement passage is greater than the inner diameter of bearing inner ring and less than the outer diameter of bearing inner ring.

[0007] Preferably, bearing seat includes two symmetrically distributed mounting seats, and clamping passage includes two semicircular clamping surfaces respectively located on two mounting seats.

[0008] Preferably, positioning disc periphery uniformly distributes three outer convex boss parts, mounting seat has limiting slot for positioning disc to be clamped into and first outer convex groove and second outer convex groove matched with boss part, and the size of first outer convex groove is twice that of second outer convex groove.

[0009] Preferably, the first outer convex groove is coaxially provided with a first threaded hole, the second outer convex groove is coaxially provided with a clamping hole, the boss portion at the first outer convex groove is provided with a stepped light hole coaxially communicated with the first threaded hole, the boss portion at the second outer convex groove is provided with a stepped threaded hole coaxially communicated with the clamping hole, the stepped light hole is provided with a first bolt threadedly connected with the first threaded hole, and the stepped threaded hole is threadedly connected with a second bolt extending into the clamping hole.

[0010] Preferably, the connecting seat is provided with a positioning hole and a positioning platform extending towards the center axis of the positioning hole, the mounting seat is clamped in the positioning hole, the connecting seat is provided with a connecting hole, the rack is provided with a through hole coaxially communicated with the connecting hole, a nut is mounted in the through hole, the nut is threadedly connected with a third bolt penetrating through the connecting hole and the through hole, the mounting seat is provided with a second positioning groove for clamping the positioning platform, and the positioning disc is provided with a first positioning groove for clamping the positioning platform.

[0011] Preferably, the mounting seat is provided with a communication hole and an incomplete through hole, the two incomplete through holes are combined into a complete through hole when the two mounting seats are folded, the connecting seat is provided with a plurality of second threaded holes coaxially communicated with the communication hole and the incomplete through hole respectively, and the second threaded holes are threadedly connected with fourth bolts.

[0012] Preferably, the mounting seat is provided with an insertion hole extending transversely, and the insertion hole is inserted with a limiting column.

[0013] Compared with the prior art, the utility model has the advantages of the following beneficial technical effects:

[0014] The utility model discloses when disassembling the bearing, the damage of bearing is not easy to cause, and the cost is saved. When needing to remove the damaged roller shaft, the connecting seat of one side is removed from the rack first, then the tool such as crowbar or other tool that can extend into the prying operation space is used, and the connecting seat is prying out from the side plate portion of both sides. The connecting seat drives the bearing seat assembly and bearing to move outward, the bearing falls off from one end of the roller shaft, then the parts of the bearing seat assembly are disassembled, and the bearing is removed. Then the connecting seat of the other side is removed from the rack, and the parts of the bearing seat assembly are disassembled, and the bearing is removed. The damage of the bearing of both ends is not easy to cause, and the removed bearing can be used again. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the utility model embodiment;

[0016] Figure 2 It is a structural sectional view of the connecting seat;

[0017] Figure 3 It is a connecting schematic view of the positioning disc, the mounting seat, the bearing and the limiting column;

[0018] Figure 4It is an exploded view of the structure of the positioning disc, the mounting seat, the bearing and the limiting column;

[0019] Figure 5 It is a structural schematic view of the roll assembly of the embodiment of the utility model mounted on the rack.

[0020] The figure mark: 1, roll cylinder;2, roll shaft;3, positioning disc;31, anti-off channel;301, first positioning groove;302, boss part;3021, stepped light hole;3022, stepped thread hole;4, mounting seat;41, second positioning groove;401, clamping surface;402, communication hole;403, incomplete through hole;404, insertion hole;405, limiting groove;406, first outer convex groove;407, second outer convex groove;408, first thread hole;409, clamping hole;5, bearing;6, connecting seat;61, side plate part;62, positioning platform part;601, positioning hole;602, connecting hole;603, second thread hole;7, limiting column;8, rack. Specific implementation

[0021] As Figures 1-5 shown, the roll assembly of the embodiment of the utility model is mounted on the rack 8, and comprises a roll cylinder 1, a roll shaft 2 and a rotating support assembly. The roll shaft 2 is used for mounting the roll cylinder 1, and the roll shaft 2 penetrates a dismounting channel of the rack 8. The rotating support assembly provides support for the roll shaft 2, so that the roll shaft 2 rotates smoothly.

[0022] The rotating support assembly is symmetrically distributed in two groups about the roll shaft 2 in the axial direction, and comprises a connecting seat 6 which is detachably arranged on the rack 8, a bearing seat assembly which is detachably connected to the connecting seat 6, and a bearing 5 which is detachably mounted on the bearing seat assembly. The connecting seat 6 has outwardly extending side plate parts 61 on both lateral sides, and a prying operation space is formed between the side plate parts 61 and the rack 8. The inner ring of the bearing 5 is sleeved on the roll shaft 2. When the roll shaft 2 is dismounted, the two groups of rotating support assemblies on both sides need to be dismounted, and then the two bearings 5 are removed.

[0023] As Figures 2-4 shown, the bearing seat assembly comprises a bearing seat which is detachably connected to the connecting seat 6, and a positioning disc 3 which is detachably connected to the bearing seat. The positioning disc 3 is used for positioning the mounting position of the bearing 5. The bearing seat has a clamping channel capable of clamping the outer ring of the bearing 5. The positioning disc 3 has an anti-off channel 31 which is coaxially distributed with the clamping channel. The anti-off channel 31 and the clamping channel are both circular channels, and the diameter of the anti-off channel 31 is smaller than the diameter of the clamping channel. The diameter of the anti-off channel 31 is greater than the inner diameter of the inner ring of the bearing 5 and smaller than the outer diameter of the inner ring of the bearing 5. The anti-off channel 31 can limit the bearing 5, but will not hinder the smooth rotation of the bearing 5.

[0024] As Figure 4As shown, the bearing seat comprises two symmetrically distributed mounting seats 4, the clamping channel comprises two semicircular clamping surfaces 401 respectively located on the two mounting seats 4, and when the two mounting seats 4 are folded, the bearing 5 can be clamped on the inner side to ensure smooth rotation support of the bearing 5. When disassembling the bearing 5, the two mounting seats 4 are separated, and the bearing 5 is exposed, which facilitates the removal of the bearing 5 from the roller shaft 2.

[0025] The positioning disc 3 is uniformly distributed with three outer convex boss parts 302 on the periphery, the mounting seat 4 is provided with a limiting groove 405 for clamping the positioning disc 3 and a first outer convex groove 406 and a second outer convex groove 407 matched with the boss part 302, and the size of the first outer convex groove 406 is twice that of the second outer convex groove 407. The boss part 302 is clamped in the first outer convex groove 406 and the second outer convex groove 407 to position the mounting of the positioning disc 3.

[0026] The first outer convex groove 406 is coaxially provided with a first threaded hole 408, the second outer convex groove 407 is coaxially provided with a clamping hole 409, the boss part 302 at the first outer convex groove 406 is provided with a stepped light hole 3021 coaxially communicated with the first threaded hole 408, and the boss part 302 at the second outer convex groove 407 is provided with a stepped threaded hole 3022 coaxially communicated with the clamping hole 409. A first bolt is threadedly connected with the first threaded hole 408 at the stepped light hole 3021, and a second bolt is threadedly connected with the stepped threaded hole 3022 and extends into the clamping hole 409. The first bolt and the second bolt can be smoothly tightened to firmly connect the positioning disc 3 and the mounting seat 4, and the two mounting seats 4 are not easy to be separated.

[0027] The connecting seat 6 is provided with a positioning hole 601 and a positioning platform 62 extending towards the center axis of the positioning hole 601, and the mounting seat 4 is clamped at the positioning hole 601 to abut and clamp the two mounting seats 4. The connecting seat 6 is provided with a connecting hole 602, the rack 8 is provided with a through hole coaxially communicated with the connecting hole 602, a nut is installed at the through hole, and a third bolt is threadedly connected with the nut and passes through the connecting hole 602 and the through hole, so that the connecting seat 6 and the rack 8 can be firmly connected. The mounting seat 4 is provided with a second positioning groove 41 for clamping the positioning platform 62, and the positioning disc 3 is provided with a first positioning groove 301 for clamping the positioning platform 62, so that the installation orientation of the mounting seat 4 and the positioning disc 3 can be determined according to the positioning platform 62, facilitating accurate installation. The positioning and installation of the positioning disc 3, the mounting seat 4 and the connecting seat 6 can align the hole positions and groove positions.

[0028] The mounting seat 4 is provided with a through hole 402 and an incomplete through hole 403, when the two mounting seats 4 are folded, the two incomplete through holes 403 are spliced into a complete through hole, the connecting seat 6 is provided with a plurality of second threaded holes 603 coaxially communicated with the through hole 402 and the incomplete through hole 403, fourth bolts are screwed at the second threaded holes 603, and the fourth bolts can firmly connect the connecting seat 6 and the mounting seat 4.

[0029] In order to further improve the firmness of the two mounting seats 4, a plug hole 404 is horizontally arranged on the mounting seat 4, a limiting column 7 is inserted into the plug hole 404, the limiting column 7 is inserted into the plug hole 404 of the two mounting seats 4 in advance, and after the positioning disc 3, the mounting seat 4, the bearing 5, the connecting seat 6 and the rack 8 are connected, the limiting column 7 can simultaneously limit the two mounting seats 4, and further prevents the mounting seat 4 from being deflected and loosened.

[0030] The embodiment can prevent the bearing 5 from being damaged when the bearing 5 is disassembled, and cost is saved. When the damaged roller shaft 2 needs to be disassembled, the connecting seat 6 on one side is first disassembled from the rack 8, then a crowbar or other tool capable of extending into a prying operation space is used to pry the connecting seat 6 outward from the side plate part 61 on both sides, the tool extends into the prying operation space for a short distance, and the exposed distance is long, and the connecting seat 6 can be pried more easily by using the lever principle. The connecting seat 6 drives the bearing seat assembly and the bearing 5 to move outward, the bearing 5 falls off from one end of the roller shaft 2, then the parts of the bearing seat assembly are disassembled, and the bearing 5 is removed. Then the connecting seat 6 on the other side is disassembled from the rack 8, then the roller 1, the roller shaft 2 and the rotating support assembly on the other side are removed, finally the bearing 5 in the rotating support assembly on the other side is pried off from the roller shaft 2, and the parts of the bearing seat assembly are disassembled, and the bearing 5 is removed, so that the bearings 5 at both ends are not easily damaged, the disassembled bearing 5 can be reused, the disassembly process is smooth, and the roller shaft 2 can be effectively disassembled.

[0031] The embodiment of the utility model is described in detail in combination with the drawings, but the utility model is not limited to this, various changes can be made within the knowledge range of the technical personnel in the technical field without departing from the purpose of the utility model.

Claims

1. A roller assembly of a demountable bearing mounted on a frame (8), characterized in that, The utility model relates to a kind of roll mounting structure, including: Roller (1); Roller shaft (2) for installing roller (1), roller shaft (2) has dismounting passage through frame (8); Rotary support assembly, it is distributed two groups about roller shaft (2) along axial symmetry, including detachably arranged on frame (8) connecting seat (6), bearing seat assembly detachably connected in connecting seat (6) and bearing (5) detachably installed on bearing seat assembly, connecting seat (6) both sides have lateral plate portion (61) extending outside, lateral plate portion (61) and frame (8) form pry operating space between, the inner ring of bearing (5) is sleeved on roller shaft (2).

2. A roll assembly of claim 1, wherein, Bearing seat assembly includes bearing seat detachably connected with connecting seat (6) and positioning disc (3) detachably connected with bearing seat, bearing seat has the clamping channel that can be clamped bearing (5) outer ring, positioning disc (3) has with the coaxial distribution of clamping channel anti-off channel (31), anti-off channel (31) and clamping channel are circular channel and anti-off channel (31) diameter is less than the diameter of clamping channel, anti-off channel (31) diameter is greater than the inner diameter of bearing (5) inner ring and less than the outer diameter of bearing (5) inner ring.

3. A roll assembly of claim 2, wherein, Bearing seat includes two symmetrically distributed mounting seats (4), clamping channel includes two semicircular clamping surfaces (401) on two mounting seats (4) respectively.

4. A roll assembly of claim 3, wherein, Positioning disc (3) periphery evenly distributes three outer convex boss portion (302), mounting seat (4) has the limiting slot (405) for positioning disc (3) clamping and the first outer convex groove (406) and second outer convex groove (407) adapted with boss portion (302), the size of first outer convex groove (406) is two times of second outer convex groove (407).

5. A roll assembly of claim 4, wherein, First outer convex groove (406) is provided with first threaded hole (408) at coaxial, second outer convex groove (407) is provided with clamping hole (409) at coaxial, the boss portion (302) on first outer convex groove (406) is provided with the stepped light hole (3021) coaxially communicated with first threaded hole (408), the boss portion (302) on second outer convex groove (407) is provided with the stepped threaded hole (3022) coaxially communicated with clamping hole (409), first bolt is threadedly connected with first threaded hole (408) and is arranged at stepped light hole (3021), second bolt is threadedly connected in stepped threaded hole (3022) and is arranged into clamping hole (409).

6. A roll assembly of claim 3, wherein, Connecting seat (6) has positioning hole (601) and positioning platform portion (62) extending to the center axis direction of positioning hole (601), mounting seat (4) is clamped in positioning hole (601), connecting seat (6) is provided with connecting hole (602), frame (8) is provided with through hole coaxially communicated with connecting hole (602), nut is installed at through hole, third bolt is threadedly connected with the through connecting hole (602) and through hole, mounting seat (4) has the second limiting slot (41) for positioning platform portion (62) clamping, positioning disc (3) has the first limiting slot (301) for positioning platform portion (62) clamping.

7. A roll assembly of claim 6, wherein, The mounting seat (4) is provided with a communication hole (402) and an incomplete through hole (403), when the two mounting seats (4) are closed, the two incomplete through holes (403) are spliced into a complete through hole, the connecting seat (6) is provided with a plurality of second threaded holes (603) coaxially communicated with the communication hole (402) and the incomplete through hole (403) respectively, and fourth bolts are threadedly connected at the second threaded holes (603).

8. A roll assembly of releasably mounted bearings according to claim 7, wherein, The mounting seat (4) is provided with a transversely arranged insertion hole (404), and the insertion hole (404) is provided with a limiting column (7).

Images