Differential driving type rolling bearing dismounting device for AGV (Automatic Guided Vehicle)

Abstract

The utility model discloses a differential drive type AGV rolling bearing dismounting device, belongs to the field of AGVs, and solves the problem that a differential drive unit rolling bearing of a whole differential drive type AGV is time-consuming and labor-consuming to dismount so as to quickly and simply dismount the differential drive unit rolling bearing. The device mainly comprises a gas circuit hydraulic pump and an oil cylinder, the gas circuit hydraulic pump is connected with the oil cylinder through an oil cylinder pipeline, a supporting sleeve is arranged on a cylinder body of the oil cylinder, a piston rod of the oil cylinder is connected with a thrust pressing plate, the thrust pressing plate is located in the supporting sleeve, a bearing clamping ring mounting groove is formed in the front end of the supporting sleeve, and a bearing clamping ring is clamped in the bearing clamping ring mounting groove. A round nut is arranged at the front end of the supporting sleeve through a locking external thread, and the round nut locks the bearing clamping ring. The dismounting device is mainly used for dismounting the rolling bearing of the differential driving type AGV.

Description

Technical Field

[0001] The utility model relates to the field of AGV, in particular to a rolling bearing disassembly device for a differential drive AGV. Background Art

[0002] In the AGV industry, when the road surface is bumpy, the whole machine generally adopts a differential drive unit as the driving system of the whole machine. The differential drive unit is mainly composed of a drive frame, sprockets and chains, a motor and a reducer, and rolling bearings. The rolling bearings are assembled on the main shaft of the drive frame, and the bearings are fitted with an interference fit.

[0003] During the driving process of AGV, in addition to bearing the weight of the entire AGV, the rolling bearing also has to bear the impact from the bumpy road surface. After a period of use, the inner ring of the rolling bearing is prone to deformation, and the interference between the rolling bearing and the main shaft of the drive frame increases. If the bearing is damaged and needs to be replaced, it is difficult to remove it using traditional bearing pulling tools. For example, the bearing removal device with publication number CN106584350A mostly uses knocking and vibrating to remove the rolling bearing. At the same time, the structure of the differential drive unit is very compact, and the working space for knocking and vibrating is very limited. It takes multiple knocks to remove the rolling bearing, which is very time-consuming and labor-intensive, and there are also certain safety hazards. Summary of the invention

[0004] The purpose of the utility model is to provide a rolling bearing disassembly device for a differential drive AGV, so as to solve the problem that the disassembly of the rolling bearing of the differential drive unit of the differential drive AGV is time-consuming and labor-intensive, thereby quickly and simply disassembling the rolling bearing of the differential drive unit.

[0005] The utility model is realized by the following technical solutions:

[0006] A rolling bearing disassembly device for a differential drive AGV comprises an air circuit hydraulic pump and an oil cylinder, wherein the air circuit hydraulic pump is connected to the oil cylinder through an oil cylinder pipeline, a supporting sleeve is provided on the cylinder body of the oil cylinder, a piston rod of the oil cylinder is connected to a thrust pressure plate, the thrust pressure plate is located in the supporting sleeve, a bearing retaining ring mounting groove is provided at the front end of the supporting sleeve, a bearing retaining ring is clamped in the bearing retaining ring mounting groove, a round nut is provided at the front end of the supporting sleeve through a locking external thread, and the round nut locks the bearing retaining ring.

[0007] Furthermore, the oil cylinder and the supporting sleeve are assembled through an oil cylinder assembly seat.

[0008] Furthermore, the oil cylinder assembly seat is welded in the supporting sleeve, the oil cylinder assembly seat is provided with an internal thread, and the oil cylinder assembly seat is threadedly connected to the cylinder body of the oil cylinder.

[0009] Furthermore, the supporting sleeve is provided with an observation hole.

[0010] Furthermore, the observation hole is a long hole.

[0011] Furthermore, the bearing retaining ring is a U-shaped retaining ring, which is provided with a horn clamp, and the bearing retaining ring is clamped on the support sleeve through the horn clamp; a stepped groove is opened in the round nut, and the bearing retaining ring part outside the support sleeve is located in the stepped groove.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model is used to dismantle the rolling bearing of the driving frame, and the operation is simple and reliable, the rolling bearing can be quickly dismantled, and the production efficiency is significantly improved.

[0014] 2. Using an air circuit hydraulic pump as the power greatly reduces the operator's labor intensity and also solves the potential safety hazards in the knocking process.

[0015] 3. The bearing retaining ring is clamped and locked with a round nut, which is easy and quick to install and has a stable structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 The utility model Figure 1 Sectional view along AA direction;

[0018] Figure 3 It is a partial exploded view of the utility model;

[0019] Figure 4 It is a use schematic diagram of the utility model.

[0020] In the figure: 1, air circuit hydraulic pump; 2, cylinder pipeline; 3, cylinder; 4, support sleeve; 5, thrust pressure plate; 6, bearing retaining ring; 7, round nut; 41, cylinder assembly seat; 42, observation hole; 43, locking external thread; 44, bearing retaining ring installation groove; 61, horn clamp; 71, stepped groove. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings.

[0022] like Figure 1 – Figure 3As shown, embodiment 1, a rolling bearing disassembly device for a differential drive AGV, includes an air circuit hydraulic pump 1 and an oil cylinder 3, the air circuit hydraulic pump 1 is connected to the oil cylinder 3 through an oil cylinder pipeline 2, a support sleeve 4 is provided on the cylinder body of the oil cylinder 3, the piston rod of the oil cylinder 3 is connected to a thrust plate 5, the thrust plate 5 is located in the support sleeve 4, a bearing retaining ring mounting groove 44 is provided at the front end of the support sleeve 4, a bearing retaining ring mounting groove 44 is provided with a bearing retaining ring 6, a round nut 7 is provided at the front end of the support sleeve 4 through a locking external thread 43, and the round nut 7 locks the bearing retaining ring 6; the diameter of the thrust plate 5 is slightly smaller than the inner cavity diameter of the support sleeve 4, and the thrust plate 5 moves axially in the inner cavity of the support sleeve 4 along with the oil cylinder 3.

[0023] Embodiment 2, a rolling bearing disassembly device for a differential drive AGV, wherein the oil cylinder 3 and the support sleeve 4 are assembled through an oil cylinder assembly seat 41; the oil cylinder assembly seat 41 is welded in the support sleeve 4, and the oil cylinder assembly seat 41 is provided with an internal thread, and the oil cylinder assembly seat 41 is threadedly connected to the cylinder body of the oil cylinder 3; the support sleeve 4 is provided with an observation hole 42; the observation hole 42 is a long hole; the bearing retaining ring 6 is a U-shaped retaining ring, and the U-shaped retaining ring is provided with a horn clamp 61, and the bearing retaining ring 6 is clamped on the support sleeve 4 through the horn clamp 61; a stepped groove 71 is opened in the round nut 7, and the part of the bearing retaining ring 6 outside the support sleeve 4 is located in the stepped groove 71, and the rest is the same as Embodiment 1.

[0024] like Figure 4 As shown, before disassembling the rolling bearing of the AGV differential drive unit, first operate the air circuit hydraulic pump 1 to shorten the stroke of the cylinder 3 to the shortest, and push the thrust plate 5 to reach the cylinder assembly seat 41 end of the support sleeve 4 as the cylinder stroke shortens, and then put the inner cavity of the support sleeve 4 on the differential drive main shaft of the rolling bearing to be disassembled, and at the back end of the rolling bearing to be disassembled, assemble the bearing retaining ring 6 to the bearing retaining ring installation groove 44 of the support sleeve 4, and then use the round nut 7 to tighten it on the locking external thread 43 of the support sleeve 4, and the extended part of the bearing retaining ring 6 outside the support sleeve 4 is locked by the stepped groove 71 of the round nut 7, and the bearing retaining ring 6 is connected to the support sleeve 4 as a whole.

[0025] Operate the air circuit hydraulic pump 1, the piston rod of the cylinder 3 extends, pushing the thrust plate 5 forward along the inner cavity of the support sleeve 4, contacting and receiving force from the end face of the differential drive unit main shaft, the cylinder rod of the cylinder 3 continues to extend, the support sleeve 4 moves in the opposite direction of the cylinder, and the bearing retaining ring 6 pulls the rolling bearing forward in the disassembly direction until the rolling bearing is removed.

Claims

1. A rolling bearing disassembly device for a differential drive AGV, comprising an air circuit hydraulic pump (1) and an oil cylinder (3), wherein the air circuit hydraulic pump (1) is connected to the oil cylinder (3), and is characterized in that: A support sleeve (4) is provided on the cylinder body of the oil cylinder (3); the piston rod of the oil cylinder (3) is connected to a thrust plate (5); the thrust plate (5) is located in the support sleeve (4); a bearing retaining ring installation groove (44) is provided at the front end of the support sleeve (4); a bearing retaining ring (6) is clamped in the bearing retaining ring installation groove (44); a round nut (7) is provided at the front end of the support sleeve (4); and the round nut (7) locks the bearing retaining ring (6).

2. The rolling bearing disassembly device for differential drive AGV according to claim 1, characterized in that: The oil cylinder (3) and the supporting sleeve (4) are assembled via an oil cylinder assembly seat (41).

3. The rolling bearing disassembly device for a differential drive AGV according to claim 2, characterized in that: The oil cylinder assembly seat (41) is welded inside the support sleeve (4), the oil cylinder assembly seat (41) is provided with an internal thread, and the oil cylinder assembly seat (41) is threadedly connected to the cylinder body of the oil cylinder (3).

4. The rolling bearing disassembly device for a differential drive AGV according to claim 1, characterized in that: The supporting sleeve (4) is provided with an observation hole (42).

5. The rolling bearing disassembly device for differential drive AGV according to claim 4, characterized in that: The observation hole (42) is a long hole.

6. The rolling bearing disassembly device for a differential drive AGV according to claim 1, characterized in that: The bearing snap ring (6) is a U-shaped snap ring, on which a horn clip (61) is provided, and the bearing snap ring (6) is clamped on the support sleeve (4) through the horn clip (61); a stepped groove (71) is provided in the round nut (7), and the portion of the bearing snap ring (6) outside the support sleeve (4) is located in the stepped groove (71).

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