Precise and fast adjusting device for axial clearance of conical double-gear-box bearing

Abstract

The utility model relates to a conical double gearbox bearing axial clearance accurate fast adjusting device which comprises a bearing baffle ring, a cover plate and an adjusting screw, a bearing with an axial clearance to be adjusted is arranged in a bearing seat on one side of a gearbox body, the bearing baffle ring and the cover plate are sequentially arranged outside the bearing, the bearing baffle ring arranged on the outer side of the bearing presses an outer ring of the bearing, and the cover plate is arranged on the outer ring of the bearing. The cover plate is installed on the gear box body, a gap is reserved between the bearing baffle ring and the cover plate, and a plurality of adjusting screws penetrate through the cover plate to abut against the outer end face of the bearing baffle ring. According to the utility model, on-site measurement and matching are not needed, and batch rapid assembly can be realized. The gap size can be accurately controlled by calculating the angle of the adjusting screw, and the product quality is improved. If the axial clearance needs to be adjusted in the later period, the axial clearance can be rapidly adjusted by adjusting the screwing depth of the screw, oil drainage and cover opening are not needed, and normal operation of the cone double-gear box is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to gear box assembly technical field, concretely relates to a kind of conical double gear box bearing axial gap precision fast adjusting device. BACKGROUND

[0002] Conical double gear box is important component widely used in plastic extrusion industry, and main function is to reduce speed, increase torque.

[0003] When conical double gear box is assembled and bearing axial play is adjusted, first, entire shafting is placed into machine body bearing seat, the distance size of two bearing end faces is measured using vernier caliper or depth gauge, then compared with the length size required, and the axial play of bearing is adjusted by adjusting ring outside bearing, the method has the following defects:

[0004] Actual operation experience requirement of assembly worker is high, the accuracy of size guarantee depends on the level of worker measurement, adjusting ring is adjusted, and it is time-consuming and laborious, when batch products are assembled, assembly efficiency is low;

[0005] To ensure normal operation of equipment, if bearing axial gap needs to be adjusted in later period, gear box needs to be drained, then cover is opened, axial size is measured again, adjusting ring is made again, it is time-consuming and laborious. INVENTION CONTENTS

[0006] The utility model aims at overcoming above-mentioned insufficient, provides a kind of conical double gear box bearing axial gap precision fast adjusting device, in view of the structure of traditional adjustment axial gap low efficiency, accuracy cannot be guaranteed, and later maintenance adjustment is difficult, the utility model application focuses on improving the structure of gear box adjusting axial gap, so that the axial gap of bearing can be quickly and accurately adjusted when gear box is assembled, and axial gap can also be adjusted at any time when it needs to be adjusted in later period.

[0007] The utility model aims at overcoming above-mentioned insufficient, provides a kind of conical double gear box bearing axial gap precision fast adjusting device, in view of the structure of traditional adjustment axial gap low efficiency, accuracy cannot be guaranteed, and later maintenance adjustment is difficult, the utility model application focuses on improving the structure of gear box adjusting axial gap, so that the axial gap of bearing can be quickly and accurately adjusted when gear box is assembled, and axial gap can also be adjusted at any time when it needs to be adjusted in later period.

[0008] A kind of conical double gear box bearing axial gap precision fast adjusting device, including bearing baffle ring, cover plate and adjusting screw, the bearing to be adjusted of axial gap is arranged in the bearing seat of gear box body side, bearing baffle ring and cover plate are sequentially arranged outside bearing, bearing baffle ring presses the outer ring of bearing, the cover plate is installed on gear box body, gap is left between bearing baffle ring and cover plate, multiple adjusting screws pass through the outer end surface of bearing baffle ring and resist cover plate.

[0009] Preferably, the bearing baffle ring is arranged in the bearing seat, and a plurality of sealing rings are axially spaced apart between the bearing baffle ring and the bearing seat.

[0010] Preferably, the adjusting screw is provided with two, and the cover plate is provided with threaded holes corresponding to the adjusting screw, and the two threaded holes are symmetrically distributed up and down.

[0011] Preferably, the threaded holes of the cover plate are circumferentially distributed with angle reference lines, and the angle reference lines are laser engraved lines.

[0012] Preferably, the adjusting screw is further sleeved with a locking nut, and the locking nut is arranged outside the cover plate.

[0013] Preferably, a gap of 1-2mm is reserved between the bearing retainer ring and the cover plate.

[0014] The beneficial effects of the utility model are:

[0015] Without on-site measurement, batch rapid assembly can be realized. By calculating the angle of the adjusting screw, the size of the gap can be accurately controlled, and the product quality is improved. In the later period, if the axial gap needs to be adjusted, the depth of the adjusting screw can be quickly adjusted without oiling and opening the cover, so as to ensure the normal operation of the tapered double gear box. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structure schematic view of the utility model of a tapered double gear box bearing axial gap precise quick adjusting device.

[0017] Figure 2 It is a partial enlarged view. Figure 1

[0018] Figure 3 It is a P view. Figure 2

[0019] Among them: bearing retainer ring 1; cover plate 2; angle reference line 2.1; adjusting screw 3; bearing 4; gear box body 5; sealing ring 6; locking nut 7. DETAILED DESCRIPTION

[0020] Referring to Figures 1-3 ​​The utility model relates to a kind of taper double gear box bearing axial gap precision quick adjusting device, including bearing baffle ring 1, cover plate 2 and adjusting screw 3, the bearing 4 to be adjusted in axial gap is arranged in the bearing seat of gear box body 5 side, the inner ring of bearing 4 is resisted to the inner end surface of bearing seat, bearing 4 is sequentially provided with bearing baffle ring 1 and cover plate 2, bearing baffle ring 1 is pressed to the outer ring of bearing 4 and is set in bearing 4 outside, the cover plate 2 is installed on gear box body 5 by bolt, gap is left between bearing baffle ring 1 and cover plate 2, two adjusting screws 3 are symmetrically distributed on cover plate 2, the adjusting screw 3 passes through cover plate 2 and is resisted to the outer end surface of bearing baffle ring 1, the bearing baffle ring 1 is set in bearing seat, and sealing ring 6 is arranged between bearing baffle ring 1 and bearing seat, multiple sealing rings 6 are axially spaced distribution, prevent oil from the outer ring of bearing baffle ring 1 and flow out, bearing baffle ring 1 is provided with installation groove corresponding sealing ring 6.

[0021] The cover plate 2 is provided with threaded holes corresponding to the adjusting screws 3, and the two threaded holes are symmetrically distributed up and down.

[0022] The threaded holes of the cover plate 2 are circumferentially uniformly distributed with angle reference lines 2.1, and the angle reference lines 2.1 are laser engraved lines, which are used for reference for the loosening angle of the adjusting screws 3.

[0023] The adjusting screw 3 is further sleeved with a locking nut 7, and the locking nut 7 is arranged outside the cover plate 2. After the position of the adjusting screw 3 is determined, the locking nut 7 is tightened to prevent loosening and prevent the adjusting screw from moving due to vibration.

[0024] Gear box assembly:

[0025] A gap of 2 mm is reserved between the bearing baffle ring 1 and the cover plate 2, the adjusting screw 3 on the cover plate 2 is screwed to the head, and the bearing baffle ring 1 is pressed against the bearing 4, so that the axial gap is 0.

[0026] According to the actual axial gap value, the axial gap is adjusted, and the following examples are given: the assembly technical requirement of the bearing is that the axial gap is 0.2 mm, and the thread pitch of the adjusting screw is 2, which means that the screw rotates 360° for one revolution, and moves 2 mm axially. Therefore, according to the calculation, if the axial gap of the bearing needs to reach 0.2 mm, the adjusting screw needs to be loosened counterclockwise by 360° ÷ (2 ÷ 0.2) = 36°. The screw loosening angle can be referred to the angle reference line on the cover plate, and an angle ruler is not needed. After the screw is loosened to the predetermined angle, the locking nut on the cover plate is tightened to prevent the adjusting screw from loosening due to vibration.

[0027] If the axial gap needs to be adjusted due to bearing wear in the later stage, the locking nut can be loosened directly, and the adjusting screw can be adjusted.

[0028] In addition to the above embodiments, the utility model also includes other implementation manners, and the technical scheme formed by using equivalent transformation or equivalent replacement should fall within the protection scope of the utility model claims.

Claims

1. A device for precise and quick adjustment of axial clearance of a bevel gearbox bearing, characterized in that: The assembly includes a bearing retaining ring, a cover plate, and adjusting screws. The bearing with the axial clearance to be adjusted is installed in a bearing housing on one side of the gearbox. A bearing retaining ring and a cover plate are sequentially installed outside the bearing. The bearing retaining ring, located on the outside of the bearing, presses against the outer ring of the bearing. The cover plate is installed on the gearbox. A gap is left between the bearing retaining ring and the cover plate. Multiple adjusting screws pass through the cover plate and abut against the outer end face of the bearing retaining ring.

2. The device for precise and quick adjustment of axial clearance of a bevel gearbox bearing according to claim 1, characterized in that: The bearing retaining ring is disposed inside the bearing housing, and a sealing ring is provided between the bearing retaining ring and the bearing housing, with multiple sealing rings axially spaced apart.

3. The device for precise and quick adjustment of axial clearance of a bevel gearbox bearing according to claim 1, characterized in that: The adjustment screw is provided in two parts, and the cover plate is provided with threaded holes corresponding to the adjustment screws. The two threaded holes are symmetrically distributed vertically.

4. A device for precise and quick adjustment of axial clearance of a bevel gearbox bearing according to claim 1 or 3, characterized in that: The cover plate has circumferentially distributed angle reference lines for its threaded holes, and these angle reference lines are laser-etched.

5. A device for precise and quick adjustment of axial clearance of a bevel gearbox bearing according to claim 1 or 3, characterized in that: The adjusting screw is also fitted with a locking nut, which is located outside the cover plate.

6. The device for precise and quick adjustment of axial clearance of a bevel double gearbox bearing according to claim 1, characterized in that: A gap of 1-2mm is reserved between the bearing retaining ring and the cover plate.

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