High-precision gear phase assembling device

Abstract

The invention belongs to the technical field of rubber plastic machinery, and discloses a high-precision gear phase assembling device. Comprising a gear phase centering device and a gear shaft phase hoisting device. The gear is mounted on the gear phase centering device, and the gear shaft is mounted on the gear shaft phase hoisting device; and the gear and the gear shaft are positioned and aligned through the gear phase centering device and the gear shaft phase hoisting device. All the components are assembled on the gear and the gear shaft in advance, the gear and the gear shaft can be correctly assembled within the extremely short cooling window period, the high-precision phase requirement of the gear and the gear shaft is smaller than or equal to 1 '11' + / -0.05 mm, and the method is actually applied to production and actual inspection and completely meets the technical requirements of customers.

Description

Technical Field

[0001] The invention relates to the technical field of rubber and plastic machinery, and in particular to a high-precision gear phase assembly device. Background Art

[0002] like Figure 1 As shown, due to the large interference fit between gear 1 and gear shaft 2 (the diameter of the hole between the two is 127mm, and the interference fit is 0.2mm-0.27mm), gear 1 needs to be heated to 120°C, and gear shaft 2 needs to be frozen with liquid nitrogen for 30-40 minutes. After installation, the phase cannot be adjusted again because it cools too quickly. Figure 2 The arrows in the figure indicate the deviation of the gear tooth centerline and the gear shaft tooth centerline, which is caused by the insufficient precision of the assembly phase device. Based on the above reasons, it is difficult for traditional marking and tooling to ensure that the technical requirements of the gear and gear shaft size centerline are ≤1′11″(±0.05mm). It is necessary to develop a high-precision gear phase assembly device as soon as possible to solve the above problems. Summary of the invention

[0003] The purpose of the present invention is to provide a high-precision gear phase assembly device, which can solve the problem of phase deviation after the original gear and the gear shaft are assembled, and has the advantages of compact structure, low cost, high precision, etc.

[0004] The technical solution of the present invention is as follows: a high-precision gear phase assembly device, comprising a gear phase centering device and a gear shaft phase lifting device; gear 1 is installed on the gear phase centering device, and gear shaft 4 is installed on the gear shaft phase lifting device; the gear 1 and gear shaft 4 are positioned and aligned by the gear phase centering device and the gear shaft phase lifting device.

[0005] The gear phase centering device includes a device body 2 and two 3.5-taper guide rods 3; the spacing between the two 3.5-taper guide rods is 100±0.01mm; the device body 2 is a hollow frustum; the 3.5-taper guide rods 3 are installed on the upper surface of the device body 2; the gear 1 is installed on the lower surface of the device body 2, and is centered by a cylindrical pin 9 and a gear hemispherical head centering screw 8, and is locked and fixed by a locking nut 10.

[0006] The gear hemispherical head centering screw 8 is in a plane perpendicular to the center lines of the two 3.5-taper guide rods 3, with an error of ±0.01mm.

[0007] The gear shaft phase lifting device includes a gear shaft fixing sleeve 5 and a gear shaft hemispherical head centering screw 7; the gear shaft fixing sleeve 5 is a hollow cylindrical shape, and a cylindrical guide column 6 is provided on the side; the gear shaft fixing sleeve 5 is installed on the gear shaft 4 tooth portion in a centered manner through the gear shaft hemispherical head centering screw 7.

[0008] The center line of the gear shaft hemispherical head centering screw 7 is parallel to the center line of the two 3.5-taper guide rods 3.

[0009] During assembly, the gear shaft 4 installed on the gear shaft phase hoisting device is hoisted, the gear shaft 4 is placed into the inner hole of the gear 1, and is quickly lowered; the guide column 6 is located between the two 3.5-taper guide rods 3; the phase centering function is completed.

[0010] The beneficial effects of the present invention are as follows: a high-precision gear phase assembly device is provided, by assembling various components on the gears and gear shafts in advance, the high-precision phase requirements of the gears and gear shafts can be correctly assembled within a very short cooling window period ≤1′11″±0.05mm. The present invention has been applied in actual production and has been actually tested, fully meeting the technical requirements of customers. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 Schematic diagram of gears and gear shafts; (a) is a front view; (b) is a side view;

[0012] Figure 2 This is a schematic diagram of the accuracy requirements for gears and gear shafts;

[0013] Figure 3 It is an overall schematic diagram of a high-precision gear phase assembly device;

[0014] Figure 4 It is a schematic diagram of another perspective of the high-precision gear phase assembly device;

[0015] Figure 5 It is a schematic diagram of the gear shaft phase hoisting device;

[0016] Figure 6 This is an installation diagram.

[0017] In the figure: 1-gear; 2-device body; 3-3.5 taper guide rod; 4-gear shaft; 5-gear shaft fixing sleeve; 6-guide column; 7-gear shaft hemispherical head centering screw; 8-gear hemispherical head centering screw; 9-cylindrical pin; 10-locking nut. DETAILED DESCRIPTION

[0018] The high-precision gear phase assembly device of the present invention is as follows: Figure 3 and Figure 4 As shown, it includes a gear phase centering device and a gear shaft phase hoisting device; gear 1 is installed on the gear phase centering device, and gear shaft 4 is installed on the gear shaft phase hoisting device; the gear 1 and gear shaft 4 are positioned and aligned by the gear phase centering device and the gear shaft phase hoisting device.

[0019] The gear phase centering device includes a device body 2 and two 3.5-taper guide rods 3; the spacing between the two 3.5-taper guide rods is 100±0.01mm; the device body 2 is a hollow frustum; the 3.5-taper guide rods 3 are installed on the upper surface of the device body 2; the gear 1 is installed on the lower surface of the device body 2, and is centered by a cylindrical pin 9 and a gear hemispherical head centering screw 8, and is locked and fixed by a locking nut 10.

[0020] The gear hemispherical head centering screw 8 is in a plane perpendicular to the center lines of the two 3.5-taper guide rods 3, with an error of ±0.01mm.

[0021] The gear shaft phase lifting device includes a gear shaft fixing sleeve 5 and a gear shaft hemispherical head centering screw 7; the gear shaft fixing sleeve 5 is a hollow cylindrical shape, and a cylindrical guide column 6 is provided on the side; the gear shaft fixing sleeve 5 is installed on the gear shaft 4 tooth portion in a centered manner through the gear shaft hemispherical head centering screw 7.

[0022] The center line of the gear shaft hemispherical head centering screw 7 is parallel to the center line of the two 3.5-taper guide rods 3.

[0023] 1. When the device is used, the device body 2, the guide rod 3, the gear clamping screw 8, the positioning pin 9, and the locking nut 10 are first installed on the gear 1.

[0024] 2. The gear shaft fixing sleeve 5, the guide column 6, and the gear shaft clamping screw 7 are installed on the gear shaft 4. The specific implementation is as follows: Figure 5 shown.

[0025] 3. During assembly, lift the gear shaft, put it into the inner hole of the gear, and quickly put it down, so that the guide column 6 can slide along the guide rod 3 and complete the phase adjustment. The specific implementation is as follows: Figure 6 shown.

Claims

1. A high-precision gear phase assembly device, characterized in that: The high-precision gear phase assembly device comprises a gear phase centering device and a gear shaft phase hoisting device; the gear (1) is mounted on the gear phase centering device, and the gear shaft (4) is mounted on the gear shaft phase hoisting device; the gear (1) and the gear shaft (4) are positioned and aligned by the gear phase centering device and the gear shaft phase hoisting device.

2. The high-precision gear phase assembly device according to claim 1, characterized in that: The gear phase centering device comprises a device body (2) and two 3.5 taper guide rods (3); the distance between the two 3.5 taper guide rods is 100±0.01mm; the device body (2) is a hollow truncated cone; the 3.5 taper guide rod (3) is installed on the upper surface of the device body (2); the gear (1) is installed on the lower surface of the device body (2), centered by a cylindrical pin (9) and a gear hemispherical head centering screw (8), and locked and fixed by a locking nut (10).

3. The high-precision gear phase assembly device according to claim 2, characterized in that: The gear hemispherical head centering screw (8) is within a plane perpendicular to the center lines of the two 3.5-taper guide rods (3), with an error of ±0.01 mm.

4. The high-precision gear phase assembly device according to claim 1, characterized in that: The gear shaft phase hoisting device comprises a gear shaft fixing sleeve (5) and a gear shaft hemispherical head centering screw (7); the gear shaft fixing sleeve (5) is in the shape of a hollow cylinder, and a cylindrical guide column (6) is provided on the side; the gear shaft fixing sleeve (5) is installed on the gear shaft (4) through the gear shaft hemispherical head centering screw (7) in a centered manner.

5. The high-precision gear phase assembly device according to claim 4, characterized in that: The center line of the gear shaft hemispherical head centering screw (7) is parallel to the center line of the two 3.5-taper guide rods (3).

6. The high-precision gear phase assembly device according to claim 2, 3 or 5, characterized in that: During assembly, the gear shaft (4) installed on the gear shaft phase hoisting device is lifted, the gear shaft (4) is placed into the inner hole of the gear (1), and quickly lowered; the guide column (6) is located between the two 3.5-taper guide rods (3); and the phase centering function is completed.

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