Mining belt conveyor roller bearing dismounting device

Abstract

The utility model relates to the technical field of bearing dismounting devices, in particular to a mining belt conveyor roller bearing dismounting device which comprises a round roller, two bearing seats are fixedly connected to the round roller, a self-aligning roller bearing outer ring is installed in one bearing seat in an interference fit mode, and a self-aligning roller bearing outer ring is installed in the other bearing seat in an interference fit mode. A self-aligning roller bearing inner ring is installed in the self-aligning roller bearing outer ring, two supporting plates are placed on one bearing seat, the top ends of the two supporting plates are clamped with the same first pressing plate, two first through grooves are formed in the first pressing plate, a hydraulic jack is placed on the first pressing plate, and a second pressing plate is placed at the top end of the hydraulic jack. Two second through grooves are formed in the second pressing plate, two pulling plates are arranged between the two supporting plates, pin holes are formed in the top ends of the pulling plates, and pin shafts are arranged in the pin holes in a penetrating mode; the dismounting method is easy and convenient to operate, safe and reliable, the production efficiency is greatly improved, and the whole-series belt conveyor roller bearing dismounting requirements can be met.

Description

TECHNICAL FIELD

[0001] The utility model relates to bearing dismounting device, concretely to a mine belt conveyor drum bearing dismounting device belongs to bearing dismounting device technical field. BACKGROUND

[0002] The belt conveyor is used for the quick transition and lap joint of the coal mine fully mechanized working face transfer machine, and the main function of the tail drum is belt reversing, and the working condition environment is poor, high speed, heavy load, long axle distance, if lubrication is not timely or oil leakage occurs, bearing heating discoloration will be caused, and then burning and seizure will be caused, how to quickly and conveniently replace the bearing during dismounting is particularly important.

[0003] However, the dismounting method currently adopted during maintenance is that the end cover and nut sleeve are first dismounted, the shaft and a disc of bearing are dismounted and taken out by using a hydraulic jack or copper bar (with the shaft shoulder as the force point), and the other disc of bearing is dismounted by using a copper bar or a big hammer to knock the outer ring of the bearing from the other side of the drum with a long strip of wood. The main disadvantage of this dismounting method is that the drum uses a self-aligning roller bearing, the outer ring and the drum bearing seat are in interference fit, the rolling element can be turned over, the inner ring is movable, and ordinary dismounting tool cannot be used. The operator supports the long strip of wood on the outer ring of the bearing as the force point, frequently knocks with the copper bar or the big hammer, the force point is unbalanced, the position must be frequently changed to make the force uniform, the labor intensity of the operator is great, several people are needed to rotate and exchange the hammering, and the bearing is easily damaged due to frequent impact force. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at solving the above problems and provides a mine belt conveyor drum bearing dismounting device, which is simple and convenient to operate, safe and reliable, greatly improves the production efficiency, and can meet the dismounting requirements of the drum bearing of the whole series of belt conveyors.

[0005] The utility model realizes the above-mentioned purpose through the following technical scheme, a mine belt conveyor drum bearing dismounting device, including round roll, two bearing seats are fixedly connected on the round roll, the inside of one bearing seat is installed with the outer ring of self-aligning roller bearing in interference fit, the inside of the outer ring of self-aligning roller bearing is installed with the inner ring of self-aligning roller bearing, the dismounting structure is equipped on one bearing seat, the dismounting structure includes support plate, two support plates are placed on one bearing seat, the top of two support plates is clamped with same first pressing plate, two first through grooves are equipped on the first pressing plate, the hydraulic jack is placed on the first pressing plate, the top of the hydraulic jack is placed with second pressing plate, two second through grooves are equipped on the second pressing plate, two pull plates are equipped between two support plates, the pull plate penetrates second through groove and first through groove, the bottom of pull plate is in contact with the outer ring of self-aligning roller bearing, the top of pull plate is equipped with pin hole, the inside of pin hole is penetrated with pin shaft.

[0006] Preferably, the bottom end of the pull plate is in L-shaped structure, and the top end of the pull plate is in "convex" shaped structure.

[0007] Preferably, the length of the first through slot and the second through slot is equal, and the length of the first through slot is greater than the width of the left and right of the pull plate.

[0008] Preferably, two insertion slots are arranged on the first pressing plate, and the top end of the support plate is clamped with the adjacent insertion slot.

[0009] Preferably, the cross section of the bottom end of the support plate is in T-shaped structure, and the cross section of the bottom end of the insertion slot is in trapezoidal structure.

[0010] Preferably, a groove is arranged on the second pressing plate, and the top end of the hydraulic jack is located in the groove.

[0011] Preferably, the cross section of the end of the pin shaft is in trapezoidal structure, and two ring grooves are arranged on the pin shaft.

[0012] Preferably, the top end of the pull plate is rotationally connected with a connecting shaft, both ends of the connecting shaft are fixedly connected with two limiting blocks, the limiting blocks are located in the adjacent ring grooves and abut against the pin shaft.

[0013] The beneficial effects of the utility model are as follows: according to the features that the structure of the belt conveyor roller and the inner ring of the self-aligning roller bearing used can be turned over, the lower edge of the outer ring of the self-aligning roller bearing is hooked by two pull plates, the movement space of the pull plate for pulling the self-aligning roller bearing is increased by using two support plates, and the support points for the hydraulic jack are provided, because the cross section of the bottom end of the support plate is in T-shaped structure, the stability during supporting can be improved, the second pressing plate can be lifted by the hydraulic jack during disassembly, the pushing force of the hydraulic jack is converted into the pulling force of the two pull plates by the two pin shafts of the second pressing plate, the outer ring of the self-aligning roller bearing is pulled out from the inside of the bearing seat under the action of the pulling force of the two pull plates, and thus the disassembly of the belt conveyor roller bearing is completed, so that the use of the big hammer for knocking is avoided, the labor intensity is reduced, the safety risk is reduced, the most important thing is that the bearing after disassembly using the tool is intact, can be used again after cleaning, the economic benefit is very significant, the first pressing plate, the second pressing plate and the pull plate are designed according to the size of the belt conveyor roller used at present, and the use for the maintenance of the whole series of products can be met. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the whole structure schematic view of the utility model;

[0015] Figure 2 It is Figure 1 The enlarged schematic view of A part shown in the figure;

[0016] Figure 3The connecting structure schematic diagram of the support plate and the first pressing plate of the utility model is shown in the figure.

[0017] Figure 4 The connecting structure schematic diagram of the connecting shaft and the limiting block of the utility model is shown in the figure.

[0018] Figure 5 The connecting structure schematic diagram of the second pressing plate and the recess of the utility model is shown in the figure.

[0019] Figure 6 The connecting structure schematic diagram of the first pressing plate and the insertion slot of the utility model is shown in the figure.

[0020] In the figure: 1, round roll; 2, bearing seat; 3, aligning roller bearing outer ring; 4, aligning roller bearing inner ring; 5, dismounting structure; 501, support plate; 502, first pressing plate; 503, insertion slot; 504, first through slot; 505, hydraulic jack; 506, second pressing plate; 507, recess; 508, second through slot; 509, pull plate; 510, pin hole; 511, pin shaft; 512, ring groove; 6, connecting shaft; 7, limiting block. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown in the figure, a kind of mine belt conveyor drum bearing dismounting device, including round roll 1, two bearing housings 2 are fixedly connected on the round roll 1, the inside of one of the bearing housings 2 is installed with the outer ring 3 of self-aligning roller bearing by interference fit, the inside of the outer ring 3 of self-aligning roller bearing is installed with the inner ring 4 of self-aligning roller bearing, dismounting structure 5 is equipped on one of the bearing housings 2, the dismounting structure 5 includes support plate 501, two support plates 501 are placed on one of the bearing housings 2, the top of two support plates 501 is clamped between same first pressing plate 502, two first through slots 504 are equipped on the first pressing plate 502, hydraulic jack 505 is placed on the first pressing plate 502, the top of the hydraulic jack 505 is placed with second pressing plate 506, two second through slots 508 are equipped on the second pressing plate 506, two pull plates 509 are equipped between two support plates 501, the pull plate 509 is penetrated in second through slot 508 and first through slot 504, the bottom of the pull plate 509 is in contact with the outer ring 3 of self-aligning roller bearing, the top of the pull plate 509 is equipped with pin hole 510, the inside of the pin hole 510 is penetrated with pin shaft 511.

[0023] As a kind of technical optimization scheme of the utility model, as shown in Figure 2 And Figure 3 As shown in the figure, the bottom of the pull plate 509 is L-shaped structure, the top of the pull plate 509 is "convex" character structure, so that the bottom of the pull plate 509 can hook the edge of the outer ring 3 of self-aligning roller bearing.

[0024] As a kind of technical optimization scheme of the utility model, as shown in Figure 1 And Figure 3 As shown in the figure, the length of the first through slot 504 and the second through slot 508 is equal, the length of the first through slot 504 is greater than the width of the left and right of pull plate 509, so when pull plate 509 passes through first through slot 504 and second through slot 508, its position can be adjusted, so that its bottom can smoothly hook the edge of the outer ring 3 of self-aligning roller bearing.

[0025] As a kind of technical optimization scheme of the utility model, as shown in Figure 3 And Figure 6 As shown in the figure, two insertion grooves 503 are equipped on the first pressing plate 502, the top of the support plate 501 is clamped between adjacent insertion groove 503, so that the positioning between two support plates 501 and first pressing plate 502 can be realized.

[0026] As a kind of technical optimization scheme of the utility model, as shown in Figure 1 And Figure 6 As shown in the figure, the cross section of the bottom of the support plate 501 is T-shaped structure, the cross section of the bottom of the insertion groove 503 is trapezoidal structure, so that the guiding effect can be played when the support plate 501 is clamped between first pressing plate 502.

[0027] As a technical optimization scheme of the utility model, as shown in Figure 3 and Figure 6 , the second pressing plate 506 is provided with a groove 507, and the top end of the hydraulic jack 505 is located inside the groove 507, so that the second pressing plate 506 can be positioned when placed on the top end of the hydraulic jack 505.

[0028] As a technical optimization scheme of the utility model, as shown in Figure 2 and Figure 4 , the cross section of the end of the pin shaft 511 is trapezoidal structure, and the pin shaft 511 is provided with two ring grooves 512, so that the pin shaft 511 can be guided during insertion into the pin hole 510.

[0029] As a technical optimization scheme of the utility model, as shown in Figure 2 and Figure 4 , the top end of the pull plate 509 is rotatably connected with a connecting shaft 6, both ends of the connecting shaft 6 are fixedly connected with two limiting blocks 7, the limiting blocks 7 are located inside the adjacent ring grooves 512 and abut against the pin shaft 511, so that the pin shaft 511 can be limited by the two limiting blocks 7.

[0030] The utility model discloses a first pressing plate 502 and two support plates 501 between positioning can be realized, then the hydraulic jack 505 is placed to the first pressing plate 502, then the second pressing plate 506 is placed to the top of hydraulic jack 505, then two pull plate 509 are in turn passed through the second pressing plate 506 and the first pressing plate 502, then the pin shaft 511 is inserted into the inside of the pin hole 510, when the pin shaft 511 is inserted into the inside of the pin hole 510, two limit stops 7 can be located inside two ring grooves 512 simultaneously, thereby realizing the location of pin shaft 511, for the belt conveyor drum structure and the used self-aligning roller bearing inner ring 4 can overturn the characteristics, can move two pull plate 509 and make its bottom end hook the outer ring lower edge of self-aligning roller bearing, uses two support plates 501 to increase pull plate 509 and draws self-aligning roller bearing movement space, and provides support point for hydraulic jack 505, because the section of support plate 501 bottom end is T-shaped structure, can improve the stability when supporting, when disassembling, can make hydraulic jack 505 lift the second pressing plate 506, and the second pressing plate 506 will respectively through two pin shafts 511 convert the thrust of hydraulic jack 505 into the tension of two pull plate 509, under the action of two pull plate 509 tension, the self-aligning roller bearing outer ring 3 will be pulled out from the inside of bearing seat 2, thereby completing the disassembly of belt conveyor drum bearing, can avoid using big hammer to knock, reduce labor intensity, reduce the security risk, the most important thing is that the bearing is intact after using the tool disassembly, can be used again after cleaning, the economic benefit is very remarkable, the first pressing plate 502, the second pressing plate 506 and pull plate 509 are all designed according to the size of the belt conveyor drum used at present, can satisfy the overhaul of full series product, when not needing to use the dismounting device, can place each component after dismounting and parallel, thereby can reduce the occupation of space, more convenient for the transportation and preservation of device.

[0031] It is apparent for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any figure reference in the claims should not be regarded as limiting the involved claims.

[0032] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature or implementation described herein. The specification can include implicit combinations of explicitly mentioned features and / or implicit combinations of implicitly mentioned features. Such combinations are also expressly included within the scope of the specification and an embodiment.

Claims

1. A mine belt conveyor drum bearing dismounting device comprising a round roller (1), characterized in that: The round roller (1) is fixedly connected with two bearing seats (2), one of the bearing seats (2) is internally interference-fitted with a self-aligning roller bearing outer ring (3), the self-aligning roller bearing outer ring (3) is internally provided with a self-aligning roller bearing inner ring (4), one of the bearing seats (2) is provided with a dismounting structure (5), the dismounting structure (5) comprises a supporting plate (501), one of the bearing seats (2) is placed with two supporting plates (501), the top ends of the two supporting plates (501) are clamped with a same first pressing plate (502), the first pressing plate (502) is provided with two first through grooves (504), the first pressing plate (502) is placed with a hydraulic jack (505), the top end of the hydraulic jack (505) is placed with a second pressing plate (506), the second pressing plate (506) is provided with two second through grooves (508), the two supporting plates (501) are provided with two pull plates (509), the pull plates (509) penetrate through the second through grooves (508) and the first through grooves (504), the bottom ends of the pull plates (509) abut against the self-aligning roller bearing outer ring (3), the top ends of the pull plates (509) are provided with pin holes (510), the pin holes (510) are internally penetrated with pin shafts (511).

2. A mine belt conveyor drum bearing puller according to claim 1, characterised in that: The bottom end of the pull plate (509) is in L-shaped structure, and the top end of the pull plate (509) is in "convex" shaped structure.

3. A mine belt conveyor drum bearing puller as claimed in claim 1, characterised in that: The lengths of the first through grooves (504) and the second through grooves (508) are equal, and the length of the first through groove (504) is greater than the width of the pull plate (509) on the left and right.

4. A mine belt conveyor drum bearing puller according to claim 1, characterised in that: The first pressing plate (502) is provided with two insertion grooves (503), and the top end of the supporting plate (501) is clamped with the adjacent insertion groove (503).

5. A mine belt conveyor drum bearing puller as claimed in claim 4, characterised in that: The cross section of the bottom end of the supporting plate (501) is in T-shaped structure, and the cross section of the bottom end of the insertion groove (503) is in trapezoidal structure.

6. A mine belt conveyor drum bearing puller as claimed in claim 1, characterised in that: The second pressing plate (506) is provided with a recess (507), and the top end of the hydraulic jack (505) is located in the recess (507).

7. A mine belt conveyor drum bearing puller as claimed in claim 1, characterised in that: The cross section of the end of the pin shaft (511) is in trapezoidal structure, and the pin shaft (511) is provided with two ring grooves (512).

8. A mine belt conveyor drum bearing puller according to claim 7, characterised in that: The top end of the pull plate (509) is rotationally connected with a connecting shaft (6), the two ends of the connecting shaft (6) are fixedly connected with two limiting blocks (7), the limiting blocks (7) are located in the adjacent ring grooves (512) and abut against the pin shaft (511). The cross section of the end of the pin shaft (511) is in trapezoidal structure, and the pin shaft (511) is provided with two ring grooves (512). The top end of the pull plate (509) is rotationally connected with a connecting shaft (6), the two ends of the connecting shaft (6) are fixedly connected with two limiting blocks (7), the limiting blocks (7) are located in the adjacent ring grooves (512) and abut against the pin shaft (511).

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