Adjustment device with adjustable gear meshing clearance

Abstract

The present invention relates to the technical field of gear transmission, and in particular to an adjustment device with adjustable gear meshing clearance; the device comprises a support plate, a driving shaft, a driving gear, a driven gear, an eccentric shaft sleeve, an adjustment disk and an adjustment assembly, the support plate is provided with a first through hole, the eccentric shaft sleeve comprises a shaft sleeve body and a second through hole; the adjustment disk is provided with a sector tooth portion and a third through hole; the central axes of the first through hole, the third through hole and the shaft sleeve body coincide with each other; the second through hole is arranged parallel to the central axis of the shaft sleeve body at a spacing, and the driving shaft is rotatably arranged in the second through hole; the shaft sleeve body is fixedly connected to the adjustment disk, and the adjustment disk is detachably connected to the support plate; the adjustment assembly comprises a connecting portion and a gear portion, and the gear portion is meshed with the sector tooth portion; the adjustment assembly is arranged to drive the adjustment disk to rotate, so as to realize the synchronous rotation of the driving shaft, thereby realizing the adjustment of the tooth profile clearance between the driving gear and the driven gear, and realizing the controllability of adjusting the tooth profile clearance and the convenience of operation.

Description

Technical Field

[0001] The invention relates to the technical field of gear transmission, and in particular to an adjusting device with adjustable gear meshing clearance. Background Art

[0002] The transmission between gears in mechanical movement is one of the methods to achieve speed change. The driving shaft drives the driving gear to rotate, and the driving gear meshes with the driven gear, and further realizes the purpose of power transmission and speed change through the output shaft. When the driving gear meshes with the driven gear, there needs to be a gap between the tooth profiles, and the gap between the gears should be as small as possible to reduce the possibility of collision during the alternating process of starting and braking, that is, instantaneous speed change. Although the gap between the tooth profiles is designed in microns, when the tooth profile gap is appropriate, a large impact force is still generated during the instantaneous speed change process, causing damage to the gears, especially in an environment with poor lubrication conditions, the damage to the gears is more serious. The traditional way to adjust the tooth profile gap is based on long-term production experience. The adjustment method is uncontrollable and consumes a lot of time, which is not conducive to the precise use and maintenance of production equipment. Summary of the invention

[0003] In order to overcome the shortcomings of the prior art in adjusting the clearance between tooth profiles, the purpose of the present invention is to provide an adjustment device with adjustable gear meshing clearance to achieve controllability and effectiveness of tooth profile clearance adjustment.

[0004] To achieve the above object, the technical solution of the present invention is:

[0005] A gear meshing clearance adjustable adjustment device, comprising a support plate, an input assembly and an output assembly, wherein the input assembly comprises a driving shaft and a driving gear, the output assembly comprises a driven gear and an output shaft, the support plate is provided with a first through hole, the driving gear meshes with the driven gear; further comprising an eccentric sleeve, an adjustment disk and an adjustment assembly;

[0006] The eccentric sleeve comprises a sleeve body and a second through hole, wherein the second through hole is arranged along the length direction of the sleeve body;

[0007] The adjusting disk is provided with a sector tooth portion and a third through hole;

[0008] The central axis of the first through hole, the central axis of the third through hole and the central axis of the sleeve body coincide with each other;

[0009] The central axis of the second through hole is parallel to the central axis of the sleeve body and is spaced apart from each other, and the drive shaft is rotatably accommodated in the second through hole;

[0010] The sleeve body passes through the third through hole and the first through hole in sequence;

[0011] The shaft sleeve body is fixedly connected to the adjustment disk, and the adjustment disk is detachably connected to the support plate;

[0012] The adjustment assembly includes a connecting portion and a gear portion, one end of the connecting portion is fixedly connected to the support plate, the gear portion is rotatably connected to the connecting portion, and the gear portion is meshed with the sector tooth portion.

[0013] Furthermore, the adjustment disk is provided with a plurality of waist-shaped holes, which are arranged in a circular array around the central axis of the adjustment disk. An external screw passes through one of the waist-shaped holes and is screwed to the support plate to fix the adjustment disk on the support plate.

[0014] Furthermore, the eccentric sleeve also includes a flange, the central axis of the flange coincides with the central axis of the sleeve body, the second through hole passes through the flange, and the adjustment plate is detachably connected to the flange.

[0015] Furthermore, a positioning groove is provided on a side of the adjustment plate away from the support plate, and the flange is embedded in the positioning groove.

[0016] Furthermore, the input component also includes a first bearing, a spacer ring and a second bearing which are sequentially sleeved on the drive shaft, and the first bearing, the spacer ring and the second bearing are arranged in the second through hole.

[0017] Furthermore, the adjustment assembly also includes a driving portion fixedly connected to the gear portion, the driving portion protrudes out of the gear portion, and the cross-sectional shape of the driving portion is non-circular.

[0018] Furthermore, the support plate is provided with a plurality of connection holes for adjusting the position of the connection part, and the connection part is installed in the connection holes.

[0019] Furthermore, the connecting portion includes a threaded portion threadedly connected to the support plate and a connecting shaft fixedly connected to the threaded portion, and the gear portion is rotatably sleeved on the outside of the connecting shaft.

[0020] Furthermore, the adjustment assembly also includes a sleeve, which is sleeved on the connecting shaft, and the gear part is rotatably sleeved on the outside of the sleeve.

[0021] Furthermore, the shaft sleeve includes an oil groove arranged on the outer wall of the shaft sleeve.

[0022] The beneficial effects of the present invention are as follows: by providing an eccentric sleeve, an adjustment disk and an adjustment assembly, the adjustment assembly drives the adjustment disk to rotate, thereby realizing synchronous rotation of the drive shaft, and then realizing adjustment of the tooth profile clearance between the driving gear and the driven gear, thereby realizing controllability of adjusting the tooth profile clearance and convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the partial structure disassembly of the present invention;

[0025] Figure 3 It is a front view of the present invention;

[0026] Figure 4 It is a left side view of the present invention;

[0027] Figure 5 It is a schematic diagram of the assembly structure of the input component and the eccentric sleeve of the present invention;

[0028] Figure 6 It is a schematic diagram of the disassembled structure of the input assembly and the eccentric sleeve of the present invention;

[0029] Figure 7 It is a schematic diagram of the three-dimensional structure of the adjustment component of the present invention;

[0030] Figure 8 It is a schematic diagram of the split structure of the adjustment component of the present invention.

[0031] Reference numerals include:

[0032] 1—support plate 11—first through hole 12—connection hole

[0033] 2—Input assembly 21—Drive shaft 22—Drive gear

[0034] 23 - first bearing 24 - isolation ring 25 - second bearing

[0035] 3—output assembly 31—driven gear 32—output shaft

[0036] 4—eccentric sleeve 41—sleeve body 42—second through hole

[0037] 43 - flange 5 - adjustment plate 51 - sector tooth

[0038] 52—third through hole 53—waist-shaped hole 54—positioning groove

[0039] 6—adjustment assembly 61—connection portion 611—threaded portion

[0040] 612—connecting shaft 62—gear part 63—driving part

[0041] 64—shaft sleeve 641—oil groove. DETAILED DESCRIPTION

[0042] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with embodiments and drawings. The contents mentioned in the implementation modes are not intended to limit the present invention.

[0043] See also Figures 1 to 8 The present invention provides an adjustable gear meshing clearance adjustment device, comprising a support plate 1, an input assembly 2 and an output assembly 3, wherein the input assembly 2 comprises a driving shaft 21 and a driving gear 22, and the output assembly 3 comprises a driven gear 31 and an output shaft 32, wherein the support plate 1 is provided with a first through hole 11, and the driving gear 22 is meshed with the driven gear 31; the device is characterized in that it also comprises an eccentric sleeve 4, an adjustment disk 5 and an adjustment assembly 6;

[0044] The adjusting disk 5 is provided with a sector tooth portion 51 and a third through hole 52;

[0045] The central axis of the first through hole 11, the central axis of the third through hole 52 and the central axis of the sleeve body 41 coincide with each other;

[0046] The central axis of the second through hole 42 is parallel to the central axis of the sleeve body 41 and is spaced apart from each other, and the drive shaft 21 is rotatably accommodated in the second through hole 42;

[0047] The sleeve body 41 passes through the third through hole 52 and the first through hole 11 in sequence;

[0048] The sleeve body 41 is fixedly connected to the adjustment disk 5, and the adjustment disk 5 is detachably connected to the support plate 1;

[0049] The adjustment assembly 6 includes a connecting portion 61 and a gear portion 62 . One end of the connecting portion 61 is fixedly connected to the support plate 1 . The gear portion 62 is rotatably connected to the connecting portion 61 . The gear portion 62 is meshed with the sector tooth portion 51 .

[0050] Specifically, in the present embodiment, a first through hole 11 is processed on the support plate 1, a third through hole 52 is processed on the adjustment disk 5, the sleeve body 41 of the eccentric guide sleeve 4 passes through the third through hole 52 and the first through hole 11 in sequence, the center axis of the outer wall of the sleeve body 41, the center axis of the first through hole 11 and the center axis of the third through hole 52 coincide with each other, the sleeve body 41 of the eccentric guide sleeve 4 is fixedly connected to the adjustment disk 5, the adjustment disk 5 is detachably connected to the support plate 1, wherein the center axis of the outer wall of the sleeve body 41 and the center axis of the second through hole 42 deviate by 3 mm, the edge of the adjustment disk 5 is processed with a sector tooth portion 51, the arc length of the sector tooth portion 51 is one sixth of the circumference of the adjustment disk 5, the connecting portion 61 of the adjustment assembly 6 is fixedly connected to the support plate 1, the gear portion 62 is rotatably connected to the connecting portion 61, the teeth of the gear portion 62 are meshed with the sector tooth portion 51, and the gear portion The rotation of 62 drives the adjustment disk 5 to rotate, and the driving shaft 21 passes through the second through hole 42. The central axis of the driving shaft 21 coincides with the central axis of the second through hole 42, and the driving shaft 21 rotates in the second through hole 42. A driving gear 22 is installed at one end of the driving shaft 21, and the driving gear 22 is meshed with the driven gear 31. The driven gear 31 rotates by driving the output shaft 32 to achieve the purpose of speed change. The tooth profile clearance between the driving gear 22 and the driven gear 31 needs to reach a suitable size to achieve the purpose of stable rotation. When the tooth profile clearance needs to be adjusted, the gear portion 62 is driven to rotate by an external force, and the gear portion 62 drives the adjustment disk 5 to rotate. The adjustment disk 5 synchronously drives the eccentric guide sleeve 4 to rotate, thereby further realizing the rotation of the driving shaft 21, and realizing the adjustment of the tooth profile clearance between the driving gear 22 and the driven gear 31 to meet the requirements.

[0051] By setting the eccentric sleeve 4, the adjustment disk 5 and the adjustment assembly 6, the adjustment assembly 6 drives the adjustment disk 5 to rotate, thereby realizing the synchronous rotation of the drive shaft 21, and then realizing the adjustment of the tooth profile clearance between the driving gear 22 and the driven gear 31, realizing the controllability of the adjustment of the tooth profile clearance and the convenience of operation.

[0052] The adjustment disk 5 is provided with a plurality of waist-shaped holes 53, which are arranged in a circular array around the central axis of the adjustment disk 5. An external screw passes through one of the waist-shaped holes and is screwed to the support plate 1 to fix the adjustment disk 5 on the support plate 1. There are seven waist-shaped holes 53, which are arranged in a circular array around the central axis of the adjustment disk 5, and are further suitable for fixed connection with the support plate 1 after the adjustment disk 5 is rotated to a suitable position.

[0053] The eccentric sleeve 4 further includes a flange 43 , the central axis of the flange 43 coincides with the central axis of the sleeve body 41 , the second through hole 42 passes through the flange 43 , and the adjustment plate 5 is detachably connected to the flange 43 .

[0054] A positioning groove 54 is provided on the side of the adjustment disk 5 away from the support plate 1, and the flange 43 is embedded in the positioning groove 54. The positioning groove 54 is annular, and the central axis of the positioning groove 54 coincides with the central axis of the third through hole 52. The arrangement of the flange 43 has the effect of further stabilizing the connection between the eccentric sleeve 4 and the adjustment disk 5, thereby improving the safety of the equipment.

[0055] The input component 2 also includes a first bearing 23, a separation ring 24 and a second bearing 25 which are sequentially sleeved on the drive shaft 21. The first bearing 23, the separation ring 24 and the second bearing 25 are arranged in the second through hole 42. The arrangement of the first bearing 23, the separation ring 24 and the second bearing 25 improves the rotation stability of the drive shaft 21 and increases the service life of the equipment.

[0056] The adjustment assembly 6 also includes a driving portion 63 fixedly connected to the gear portion 62. The driving portion 63 protrudes out of the gear portion 62. The cross-sectional shape of the driving portion 63 is non-circular. Preferably, the driving portion 63 is in the shape of an outer hexagonal column. The driving portion 63 can be rotated using a wrench to achieve the purpose of driving the gear portion 62 to rotate. The structure is simple and easy to operate.

[0057] The support plate 1 is provided with a plurality of connection holes 12 for adjusting the position of the connection portion 61 , and the connection portion 61 is installed outside the connection hole 12 .

[0058] The connecting portion 61 includes a threaded portion 611 screwed to the support plate 1 and a connecting shaft 612 fixedly connected to the threaded portion 611. The gear portion 62 is rotatably sleeved on the outside of the connecting shaft 612. The connecting portion 61 uses a common hexagon socket screw structure, which is easy to purchase and process with low cost.

[0059] The adjustment assembly 6 further includes a shaft sleeve 64 , which is sleeved on the connecting shaft 612 , and the gear portion 62 is rotatably sleeved on the outer side of the shaft sleeve 64 .

[0060] The sleeve 64 includes an oil groove 641 arranged on the outer wall of the sleeve 64. The sleeve 64 is a copper sleeve. The oil groove 641 is annular. The oil groove 641 is arranged around the central axis of the sleeve 64. The sleeve 64 is rotatably sleeved on the outer side of the connecting shaft 612. The gear part 62 is rotatably connected to the sleeve 64, so that the gear part 62 can rotate flexibly and is easy to operate.

[0061] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The content of this specification should not be understood as limiting the present invention.

Claims

1. A gear meshing clearance adjustment device, comprising a support plate (1), an input assembly (2) and an output assembly (3), wherein the input assembly (2) comprises a drive shaft (21) and a drive gear (22), and the output assembly (3) comprises a driven gear (31) and an output shaft (32), the support plate (1) is provided with a first through hole (11), and the drive gear (22) meshes with the driven gear (31); characterized in that: It also includes an eccentric shaft sleeve (4), an adjustment disk (5) and an adjustment assembly (6); The eccentric sleeve (4) comprises a sleeve body (41) and a second through hole (42), wherein the second through hole (42) is arranged along the length direction of the sleeve body (41); The adjustment disk (5) is provided with a sector tooth portion (51) and a third through hole (52); The central axis of the first through hole (11), the central axis of the third through hole (52) and the central axis of the sleeve body (41) coincide with each other; The central axis of the second through hole (42) is parallel to the central axis of the sleeve body (41) and is spaced apart from each other, and the drive shaft (21) is rotatably accommodated in the second through hole (42); The shaft sleeve body (41) passes through the third through hole (52) and the first through hole (11) in sequence; The shaft sleeve body (41) is fixedly connected to the adjustment disk (5), and the adjustment disk (5) is detachably connected to the support plate (1); The adjustment assembly (6) comprises a connecting portion (61) and a gear portion (62), one end of the connecting portion (61) is fixedly connected to the support plate (1), the gear portion (62) is rotatably connected to the connecting portion (61), and the gear portion (62) is meshed with the sector tooth portion (51); the adjustment disk (5) is provided with a plurality of waist-shaped holes (53), the plurality of waist-shaped holes (53) are arranged in a circular array around the central axis of the adjustment disk (5), an external screw passes through one of the waist-shaped holes (53) and is screwed to the support plate (1), thereby fixing the adjustment disk (5) on the support plate (1); The adjustment assembly (6) further comprises a driving portion (63) fixedly connected to the gear portion (62), the driving portion (63) protruding out of the gear portion (62), and the cross-sectional shape of the driving portion (63) is non-circular; the support plate (1) is provided with a plurality of connecting holes (12) for adjusting the position of the connecting portion (61), and the connecting portion (61) is installed in the connecting holes (12); the connecting portion (61) comprises a threaded portion (611) threadedly connected to the support plate (1) and a connecting shaft (612) fixedly connected to the threaded portion (611), and the gear portion (62) is rotatably sleeved on the outside of the connecting shaft (612); the adjustment assembly (6) further comprises a shaft sleeve (64), the shaft sleeve (64) is sleeved on the connecting shaft (612), and the gear portion (62) is rotatably sleeved on the outside of the shaft sleeve (64); the shaft sleeve (64) comprises an oil groove (641) provided on the outer wall of the shaft sleeve (64).

2. The gear meshing clearance adjustment device according to claim 1, characterized in that: The eccentric sleeve (4) further comprises a flange (43), the central axis of the flange (43) coincides with the central axis of the sleeve body (41), the second through hole (42) passes through the flange (43), and the adjustment plate (5) is detachably connected to the flange (43).

3. The gear meshing clearance adjustment device according to claim 2, characterized in that: A positioning groove (54) is provided on the side of the adjustment plate (5) away from the support plate (1), and the flange plate (43) is embedded in the positioning groove (54).

4. The gear meshing clearance adjustment device according to claim 1, characterized in that: The input component (2) further comprises a first bearing (23), a spacer ring (24) and a second bearing (25) which are sequentially sleeved on the drive shaft (21); the first bearing (23), the spacer ring (24) and the second bearing (25) are arranged in the second through hole (42).

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