Water pump bearing dismounting device

Abstract

The utility model discloses a water pump bearing dismounting device, which relates to the field of bearing dismounting tools, and comprises two jacks, a disc, a connecting rod and a pull rod, a bearing body is arranged between the two jacks, two sides of the disc are welded with connecting plates, the pull rod is arranged below the connecting rod, and the connecting plate is connected with the disc. A pull head is arranged at the bottom end of the pull rod, and the bearing body comprises an inner ring and an outer ring. The jack, the disc, the connecting rod, the pull rods and the pull head are arranged, the jack and the water pump are fixed to the ground or a workbench, and the three pull rods are sequentially plugged between the first groove and the second groove and then rotate by 90 degrees clockwise or anticlockwise; the disc penetrates through the connecting rod through the through hole, the jack is started at the moment, the jack jacks the connecting plate, the disc, the pull rod, the pull head and the bearing body to integrally ascend, and finally the bearing body is separated from the shaft body.

Description

TECHNICAL FIELD

[0001] The utility model relates to bearing dismounting tool technical field especially relates to a water pump bearing dismounting device. BACKGROUND

[0002] The bearing is an important spare part in contemporary mechanical equipment, its main function is supporting mechanical rotating body, reducing its friction coefficient in the movement process, and ensuring its rotation precision, the bearing is also used in water pump, since the water pump outlet end bearing wears more seriously, needs regularly replacing the bearing, however, the water pump shaft and the bearing are for interference fit, and the manual dismounting is difficult, and the bearing is damaged easily.

[0003] In mine operation, water pump is needed to discharge underground water, the conventional knock dismounting method is simple in operation and simple in tool, but is easy to damage the bearing, and the knocking can influence the service tenacity of the bearing or shaft rod, the temperature difference method and the baking method are not suitable for underground work, and are easy to cause explosion danger. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in the prior art and provides a water pump bearing dismounting device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A water pump bearing dismounting device, including a jack, a disc, a connecting rod, a pull rod,

[0007] Two jacks are arranged between the two jacks, and a bearing body is arranged between the two jacks.

[0008] The connecting plate is welded on both sides of the disc, and the connecting plate is located on the upper surface of the jack output end, three through holes are arranged in the annular array on the disc, and the connecting rod is arranged in the through hole.

[0009] The pull rod is arranged below the connecting rod, the pull rod bottom end is provided with a pull head, the pull head can move towards the disc center direction, so as to adapt to different sizes of bearing body.

[0010] The bearing body includes an inner ring and an outer ring, the inner ring is provided with a first groove on the outer side, the outer ring is provided with a second groove on the inner side, and the bearing body is provided with a shaft body inside; the jack and the water pump are fixed on the ground or the workbench, then the pull rod is screwed with the connecting rod, then the three pull rods are sequentially inserted between the first groove and the second groove, and then the clockwise or counterclockwise rotation is ninety degrees, at this time, the pull head below the pull rod is limited between the first groove and the second groove and cannot be separated.

[0011] Further, the pull rod top end is provided with a first thread, the connecting rod bottom end is provided with a thread hole matched with the first thread, the connecting rod top end is provided with a second thread, and the connecting rod top end is provided with a nut matched with the second thread, and the nut is used for locking the position of the disc.

[0012] Further, the jack is fixed on the ground or the workbench, the pull rod is slightly moved to the disc center direction, the pull head is only limited in the first groove, the two fixing sleeves are installed on the outer side of the jack, the pressing rod is slid on the fixing rod, the pressing rod is stopped when being located above the outer ring, and the nut is tightened.

[0013] Further, the pull head is in a cylindrical shape and can be clamped in the first groove and the second groove.

[0014] Further, the bottom end of the pressing rod is in an inverted isosceles trapezoidal shape, the trapezoidal slope makes the contact pressure be distributed in a gradient mode, and the outer ring is prevented from being pressed and damaged.

[0015] Further, the pressing rod is slidably installed on the outer side of the fixing rod through the sliding groove, the pressing rod can be fixed at any position on the fixing rod by the knob, and thus the bearing body of various sizes can be adapted.

[0016] Further, the connecting rod is provided with a key groove on the outer side, so that the connecting rod and the pull rod can be disassembled later.

[0017] Further, the lower surface of the connecting plate is provided with a limiting groove, so that the connecting plate can be aligned with the output end of the jack.

[0018] The utility model discloses the beneficial effects are:

[0019] 1. The utility model discloses a jack, a disc, a connecting rod, a pull rod and a pull head are arranged, two jacks are placed on the two sides of the water pump, the jack and the water pump are fixed on the ground or the workbench, three pull rods are sequentially inserted between the first groove and the second groove, and then the pull rod is rotated clockwise or counterclockwise by ninety degrees, the pull head below the pull rod is limited between the first groove and the second groove and cannot be separated, the disc passes through the connecting rod through the through hole, the jack is started, the connecting plate, the disc, the pull rod, the pull head and the bearing body are lifted as a whole, the bearing body is separated from the shaft body, and the dismounting work of the bearing body is completed.

[0020] 2. The utility model discloses a fixed sleeve, fixed rod, press bar are set to, the pull rod is moved slightly to the disc center direction, the pull head is only limited in the first recess at this moment, install two fixed sleeves in the outside of the jack, the press bar is stopped to move when being located the upper portion of the outer ring, tighten the knob, the press bar position is fixed, start the jack again, the outer ring does not rise under the restriction of the press bar, and the jack drives the connecting plate, disc, pull rod, pull head, the whole outer ring rises, thereby complete the nondestructive separation work of the outer ring. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 The utility model proposes a whole structure schematic diagram of water pump bearing dismounting device;

[0022] Figure 2 The utility model proposes a front view schematic diagram of water pump bearing dismounting device;

[0023] Figure 3 The utility model proposes the installation schematic diagram of connecting rod on disc of water pump bearing dismounting device;

[0024] Figure 4 The utility model proposes the connecting rod and pull rod explosion schematic diagram of water pump bearing dismounting device;

[0025] Figure 5 The utility model proposes the bearing body section view schematic diagram of water pump bearing dismounting device;

[0026] Figure 6 The utility model proposes the inner ring and outer ring separation schematic diagram of water pump bearing dismounting device;

[0027] Figure 7 The utility model proposes the fixed sleeve and press bar explosion schematic diagram of water pump bearing dismounting device.

[0028] In the drawing: 1, jack;2, disc;3, connecting rod;4, pull rod;5, bearing body;6, connecting plate;7, through -hole;8, pull head;9, inner ring;10, outer ring;11, first recess;12, second recess;13, shaft;14, first thread;15, threaded hole;16, second thread;17, nut;18, fixed sleeve;19, fixed rod;20, press bar;21, knob;22, sliding slot;23, key groove;24, limit slot. DETAILED DESCRIPTION

[0029] The technical scheme in the embodiments of the utility model will be apparently and completely described in conjunction with the drawings of the embodiments of the utility model, and obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments.

[0030] Referring to Figures 1-5 A water pump bearing dismounting device, comprising a jack 1, a disc 2, a connecting rod 3, a pull rod 4;

[0031] The jack 1 is provided in two, and a bearing body 5 is arranged between the two jacks 1;

[0032] The connecting plate 6 is welded on both sides of the disc 2, the connecting plate 6 is located on the upper surface of the output end of the jack 1, three through holes 7 are arranged in an annular array on the disc 2, and one end of the connecting rod 3 is arranged in the through hole 7;

[0033] The pull rod 4 is arranged below the connecting rod 3, and the pull rod 4 is provided with a pull head 8 at the bottom end, and the pull head 8 can move towards the center of the disc 2, so as to adapt to bearings of different sizes;

[0034] The bearing body 5 comprises an inner ring 9 and an outer ring 10, the outer side of the inner ring 9 is provided with a first groove 11, the inner side of the outer ring 10 is provided with a second groove 12, and the inside of the bearing body 5 is provided with a shaft body 13;

[0035] Two jacks 1 are placed on both sides of the water pump, the jacks 1 and the water pump are fixed on the ground or the workbench, then the pull rod 4 is threadedly connected with the connecting rod 3, then the three pull rods 4 are sequentially inserted between the first groove 11 and the second groove 12, and then the pull rod 4 is rotated clockwise or counterclockwise by 90 degrees, at this time, the pull head 8 below the pull rod 4 is limited between the first groove 11 and the second groove 12 and cannot be separated, the disc 2 passes through the connecting rod 3 through the through hole 7, at this time, the jack 1 is started, the connecting plate 6, the disc 2, the pull rod 4, the pull head 8 and the bearing body 5 are lifted as a whole, and finally the bearing body 5 is separated from the shaft body 13, and the non-destructive dismounting work of the bearing body 5 is completed.

[0036] Referring to Figure 1 , Figure 4 Specifically, a first thread 14 is formed at the top end of the pull rod 4, a threaded hole 15 matched with the first thread 14 is arranged at the bottom end of the connecting rod 3, a second thread 16 is formed at the top end of the connecting rod 3, and a nut 17 matched with the second thread 16 is arranged at the top end of the connecting rod 3; the position of the disc 2 is locked by the nut 17 after the through hole 7 passes through the connecting rod 3, and the disc 2 is held below by hand.

[0037] Referring to Figures 6-7, specific: the jack 1 outside symmetry is provided with fixed sleeve 18, the fixed sleeve 18 between through bolt fixed connection, one of the fixed sleeve 18 side welded with fixed rod 19, the fixed rod 19 outside is provided with pressure bar 20, the pressure bar 20 upper surface screw installation has knob 21, the knob 21 and fixed rod 19 movable contact, in view of bearing body 5 includes inner ring 9 and outer ring 10, for the abnormality of bearing body 5, it may be that the inner ring 9 is damaged, also may be outer ring 10 damage caused, therefore, the application can also separate the inner ring 9 and outer ring 10, still will jack 1 and water pump fixed on the ground or workbench, the pull rod 4 is moved to the center of disc 2 direction of small distance, the pull head 8 is only limited in the first groove 11 at this time, install two fixed sleeve 18 in the outside of jack 1, slide pressure bar 20 on fixed rod 19, stop moving when pressure bar 20 is above outer ring 10, tighten knob 21, the position of pressure bar 20 is fixed, start jack 1 again, outer ring 10 is no longer lifted under the restriction of pressure bar 20, jack 1 drives connecting plate 6, disc 2, pull rod 4, pull head 8, inner ring 9 whole body ascends, thereby complete the nondestructive separation work of inner ring 9 and outer ring 10.

[0038] Referring to Figure 5 , specific: the pull head 8 is provided as a cylindrical shape, and the pull head 8 can be clamped inside the first groove 11 and the second groove 12.

[0039] Referring to Figure 7 , specific: the bottom end of the pressure bar 20 is provided as an inverted isosceles trapezoidal shape, and the trapezoidal slope causes the contact pressure to be distributed in a gradient manner, thereby avoiding damage to the outer ring 10.

[0040] Referring to Figures 6-7 , specific: the pressure bar 20 is provided with a sliding groove 22, and the pressure bar 20 is slidably installed outside the fixed rod 19 through the sliding groove 22. The pressure bar 20 can be fixed at any position on the fixed rod 19 by the knob 21, so as to adapt to bearings of various sizes.

[0041] Referring to Figure 4 , specific: the connecting rod 3 is provided with a key groove 23 outside, which facilitates the disassembly of the connecting rod 3 and the pull rod 4.

[0042] Referring to Figure 3 , specific: the lower surface of the connecting plate 6 is provided with a limiting groove 24, so that the connecting plate 6 can be aligned with the output end of the jack 1.

[0043] Working principle: Place two jacks 1 on both sides of the water pump, fix the jacks 1 and the water pump on the ground or workbench, then thread the pull rod 4 with the connecting rod 3, then sequentially insert the three pull rods 4 between the first groove 11 and the second groove 12, and then rotate clockwise or counterclockwise by ninety degrees. At this time, the pull head 8 below the pull rod 4 is limited between the first groove 11 and the second groove 12 and cannot be separated. Pass the disc 2 through the connecting rod 3 through the through hole 7, and then lock the position of the disc 2 with the nut 17 and hold it below the disc 2 with your hand. At this time, start the jack 1, and the jack 1 drives the connecting plate 6, the disc 2, the pull rod 4, the pull head 8, and the bearing body 5 to rise as a whole, and finally the bearing body 5 is separated from the shaft body 13, completing the non-destructive disassembly of the bearing body 5;

[0044] Since the bearing body 5 includes the inner ring 9 and the outer ring 10, the abnormality of the bearing body 5 may be caused by damage to the inner ring 9 or the outer ring 10. Therefore, the inner ring 9 and the outer ring 10 can also be separated. The jacks 1 and the water pump are fixed on the ground or workbench, and the pull rod 4 is moved a small distance towards the center of the disc 2. At this time, the pull head 8 is only limited in the first groove 11. Two fixed sleeves 18 are installed outside the jacks 1, the pressure rod 20 is slid on the fixed rod 19, and the movement is stopped when the pressure rod 20 is above the outer ring 10. Tighten the knob 21, and the position of the pressure rod 20 is fixed. Start the jack 1 again, and the outer ring 10 does not rise under the limitation of the pressure rod 20. The jack 1 drives the connecting plate 6, the disc 2, the pull rod 4, the pull head 8, and the inner ring 9 to rise as a whole, thereby completing the non-destructive separation of the inner ring 9 and the outer ring 10.

[0045] It should be noted that the terms "one embodiment", "an embodiment", "example embodiment", "some embodiments" and the like in the specification are not necessarily referring to the same embodiment, but they can refer to different embodiments. In particular, these terms can refer to a particular system, method, article, manufacturing machine, composition of matter, material, apparatus and / or process being described in the specification.

[0046] In general, the terminology used can be understood at least partially from a context in which the terms are used. For example, the terminology "one or more" as used herein, depending at least in part upon a context in which the term is used, can be used to describe any feature, structure, or characteristic in a singular sense or can be used to describe combinations of features, structures or characteristics in a plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but instead can allow for existence of other factors not expressly described or shown. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but instead can allow for existence of other factors not expressly described or shown.

[0047] It will be understood that the terms "on," "over," and "above" in the disclosure should be interpreted in the broadest context possible so that "on" not only means "directly on" something but also includes the meaning of being "on" something with intervening features or layers therebetween, and "over" or "above" not only means the meaning of being "over" or "above" something but also can include the meaning of being "over" or "above" something with no intervening features or layers therebetween.

[0048] In addition, spatially relative terms, such as "beneath", "below", "lower", "on", "over", and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein can be interpreted accordingly.

Claims

1. A water pump bearing disassembly device, characterized in that, Including jack (1), disc (2), connecting rod (3), pull rod (4); The jack (1) is provided with a bearing body (5) between two jack (1). The connecting plate (6) is welded on both sides of the disc (2), and the connecting plate (6) is located on the upper surface of the output end of the jack (1). The disc (2) is provided with three through holes (7) in annular array, and the connecting rod (3) is arranged in the through hole (7); The pull rod (4) is arranged below the connecting rod (3), and the pull rod (4) is provided with a pull head (8) at the bottom end; The bearing body (5) comprises an inner ring (9) and an outer ring (10), the outer side of the inner ring (9) is provided with a first groove (11), the inner side of the outer ring (10) is provided with a second groove (12), and the inside of the bearing body (5) is provided with a shaft body (13).

2. A water pump bearing puller as set forth in claim 1, wherein, The top end of the pull rod (4) is provided with a first thread (14), the bottom end of the connecting rod (3) is provided with a threaded hole (15) matched with the first thread (14), the top end of the connecting rod (3) is provided with a second thread (16), and the top end of the connecting rod (3) is provided with a nut (17) matched with the second thread (16).

3. A water pump bearing puller as set forth in claim 1, wherein, The outer side of the jack (1) is provided with a fixed sleeve (18) symmetrically, the fixed sleeves (18) are connected by bolts, one side of one of the fixed sleeves (18) is welded with a fixed rod (19), the outer side of the fixed rod (19) is provided with a pressing rod (20), the upper surface of the pressing rod (20) is spirally installed with a knob (21), and the knob (21) is in movable contact with the fixed rod (19).

4. A water pump bearing puller as set forth in claim 1, wherein, The pull head (8) is provided in a cylindrical shape.

5. A water pump bearing puller as set forth in claim 3, wherein, The bottom end of the pressing rod (20) is provided in an inverted isosceles trapezoidal shape.

6. A water pump bearing puller as set forth in claim 3, wherein, The pressing rod (20) is provided with a sliding groove (22), and the pressing rod (20) is slidably installed on the outer side of the fixed rod (19) through the sliding groove (22).

7. A water pump bearing puller as set forth in claim 1, wherein, The outer side of the connecting rod (3) is provided with a key groove (23).

8. A water pump bearing puller as set forth in claim 1, wherein, The lower surface of the connecting plate (6) is provided with a limiting groove (24).

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