Adjustable high-precision gear aligning device

Abstract

An adjustable high-precision gear aligning device is used for high-precision gear aligning assembly between a disc gear and a shaft gear, the gear aligning device comprises a base, a positioning assembly and a gear aligning assembly, and the positioning assembly and the gear aligning assembly are arranged on the base in a left-right opposite mode. After the two gears are assembled, the requirement for the technological symmetry degree can be completely met, one-time successful assembly is guaranteed, when tooth alignment deviation occurs due to the fact that tooth alignment grooves of the adjustable tooth alignment units in the device are abraded, compensation can be achieved through fine adjustment, the practicability of the device for guaranteeing the assembly quality is improved, and the service life of the device is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to gear pair tooth equipment technical field, specifically is a kind of adjustable high-precision gear pair tooth device. BACKGROUND

[0002] Heavy-duty truck gearbox is generally all big modulus gear, can bear high load transmission, the corresponding gear of big modulus gear itself appearance size is also larger, like this assembly, the space of gearbox is large, it is not conducive to the overall space scheme design of automobile.To avoid this situation, while also not affect gear high load capacity, from the gear processing technology angle, two gears are designed as press-fit after welding structure, to realize both can bear high load and can reduce the purpose of space.

[0003] But the two gears of press-fit after welding structure because two gear parts need high-precision tooth part symmetry after assembly, generally error requirement is not more than 0.04mm.To ensure high torsional strength, all interference fit, adopt heating mode assembly, need to complete tooth action in short time, and ensure one-time tooth assembly precision.Therefore, it faces great difficulty in tooth process.

[0004] The gear pair tooth device in prior art mostly exists tooth precision, tooth device structure is single, fixed, and poor adjustability, when tooth groove appears wear after long-term use, there is larger tooth error, and the service life is short. SUMMARY

[0005] The technical purpose of the utility model is to provide a kind of adjustable high-precision gear pair tooth device, its structure is reasonable, design is ingenious, and operability is strong, two gears can fully meet the process symmetry requirement after assembly, ensure one-time assembly success.The adjustable tooth unit in device can be compensated by fine adjustment when tooth deviation appears when tooth groove wears, increase the practicability of the device to ensure assembly quality, and prolong its service life.

[0006] To achieve the above technical purpose, the technical scheme adopted by the utility model is as follows: a kind of adjustable high-precision gear pair tooth device is used for the high-precision tooth assembly between disc gear and shaft gear, and the tooth device includes base and positioning assembly and tooth assembly oppositely arranged on the base, the positioning assembly is used for the axial positioning of the lower end of shaft gear and the radial positioning of the non-tooth part of the axial side of shaft gear, and the tooth assembly includes vertically arranged support and locking tooth unit and adjustable tooth unit mounted on the support, the locking tooth unit is arranged corresponding to the tooth part of shaft gear, including tooth piece, transmission module and operating handle, the tooth piece is horizontally arranged on the support, and the operating handle can drive the tooth piece to move forward and backward via transmission module to realize the compression positioning or loosening of the tooth part of shaft gear.

[0007] The adjustable tooth matching unit corresponds to the tooth part of the disc gear and is composed of an adjustable tooth matching block, a stud and a positioning buckle. The adjustable tooth matching block includes a tooth matching shaft, a tooth matching groove and a fine adjustment screw. The tooth matching shaft is horizontally arranged in the support and connected with the positioning buckle through the stud at one end. The positioning buckle can drive the tooth matching shaft to move forward and backward through the stud to realize the compression or release of the tooth part of the disc gear. The other end of the tooth matching shaft is fixed with an assembly disc. The tooth matching groove is fixed on the assembly disc through a plurality of connecting screws. A gap is provided between the screw holes on the tooth matching groove and the connecting screws. Two fine adjustment screws are installed on the upper part of the tooth matching groove through a fixed support. The bottom of each fine adjustment screw is fixed with a wedge-shaped block. The two wedge-shaped blocks are symmetrically arranged on the left and right sides of the tooth matching groove and in contact with the tooth matching groove. When the connecting screw on the tooth matching groove is in the released state, the wedge-shaped block can be moved up and down by rotating the fine adjustment screw to realize the left and right extrusion displacement of the tooth matching groove, thereby realizing the fine adjustment of the tooth.

[0008] Further, the positioning assembly includes a column and an axial positioning block. The axial positioning block is fixed on the middle part of the upper surface of the base for axial positioning of the shaft gear. The column and the tooth matching assembly are respectively installed on the left and right sides of the axial positioning block. At least one V-shaped block is arranged on the side of the column facing the axial positioning block for radial positioning of the non-tooth part of one side of the shaft gear.

[0009] Further, the number of V-shaped blocks on the column is two, and the two V-shaped blocks are arranged in parallel on the side of the column facing the axial positioning block.

[0010] Further, the column, the axial positioning block and the support are fixed on the base by bolts.

[0011] Further, the tooth matching piece is in a cylindrical structure. One end of the cylindrical tooth matching piece is connected with the transmission module, and the other end is provided with a V-shaped groove for limiting the tooth part of the shaft gear.

[0012] Further, the tooth matching piece is arranged in the support through a transition sleeve. A guide groove is formed on the outer wall of the tooth matching piece along the axial direction. A pin hole is formed on the transition sleeve and the support. A positioning pin is arranged in the pin hole and the guide groove to effectively prevent the radial rotation of the tooth matching piece during the axial movement.

[0013] Further, the tooth matching connecting shaft is arranged in the support through a transition sleeve. A guide groove is formed on the outer wall of the tooth matching connecting shaft along the axial direction. A pin hole is formed on the transition sleeve and the support. A positioning pin is arranged in the pin hole and the guide groove to effectively prevent the radial rotation of the tooth matching connecting shaft during the axial movement.

[0014] Further, a lifting ring is installed on the diagonal part of the upper surface of the base to facilitate the transportation of the base.

[0015] Further, the pair of teeth is fixed on the assembling disc through four connecting screws arranged at four corners thereof.

[0016] Further, the fixing support is installed on the support through a screw.

[0017] The utility model discloses the beneficial effect:

[0018] 1, the utility model discloses a novel structure adjustable high-precision gear pair of teeth device for the pair of teeth process requirement, and the device is ingenious in conception, novel in design, simple in structure, convenient to operate, and the skill level requirement of operator is not high, and the two gear assemblies can fully satisfy the process symmetry requirement, guarantees one -time assembly success. Compared with the traditional method, the adjustable pair of teeth unit is designed, when the pair of teeth deviation appears when the pair of teeth groove wears, can be compensated through fine adjustment, increase the practicality of the device guarantee assembly quality, and prolong its service life.

[0019] 2, a kind of adjustable high-precision gear pair of teeth device of the utility model, structure unique adjustable pair of teeth unit is arranged in device structure, the adjustable pair of teeth unit can better realize the high-precision pair of teeth press-fit between two gears, can control the symmetry of the tooth of two gears within 0.04mm, even higher, to better meet the process requirement, improve product quality. DRAWINGS

[0020] Figure 1 It is the structural schematic diagram of the utility model;

[0021] Figure 2 It is the structural schematic front view when the utility model is used;

[0022] Figure 3 It is the B-B section view of Figure 2 ; It is the A-A section view of

[0023] Figure 4 It is the structural schematic diagram of adjustable pair of teeth block in the utility model;

[0024] Figure 5 It is the B-B section view of Figure 4 ; It is the A-A section view of

[0025] Figure 6 The structural schematic diagram of pair of teeth connecting shaft and assembling disc;

[0026] Figure 7 It is the structural schematic diagram of pair of teeth groove;

[0027] Mark No. : 1, base, 2, V-shaped block, 3, stand, 4, disc gear, 5, axial positioning block, 6, adjustable tooth matching block, 601, wedge-shaped block, 602, assembly disc, 603, fixed support, 604, fine adjustment screw, 605, tooth matching groove, 606, connecting screw, 607, tooth matching connecting shaft, 7, stud, 8, positioning buckle, 9, shaft gear, 10, support, 11, tooth matching piece, 12, transition sleeve, 13, operating handle, 14, positioning pin, 15, lifting ring. DETAILED DESCRIPTION

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the present application will be further described in detail below with reference to the drawings and embodiments. However, it should be understood that the elements, structures and features in one embodiment can also be beneficially combined into other embodiments without further description. And the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creating creative labor.

[0029] It should be noted that: unless otherwise defined, the technical terms or scientific terms used in this paper should be understood by those skilled in the art as the usual meaning. The "one", "a" or "the" and similar words used in the patent application description and claims of the present application do not mean quantity limitation, but mean that there is at least one. The words such as "include" or "contain" indicate that the elements or objects appearing before "include" or "contain" cover the elements or objects listed after "include" or "contain" and their equivalents, but do not exclude other elements or objects with the same function.

[0030] As shown in the figure, the adjustable high-precision gear tooth matching device of the present application is used for high-precision tooth matching assembly between disc gear 4 and shaft gear 9. The tooth matching device comprises base 1 and positioning assembly and tooth matching assembly oppositely arranged on the base 1. The positioning assembly is used for axial positioning of the lower end of the shaft gear 9 and radial positioning of the non-tooth part on one side of the shaft gear 9. The positioning assembly comprises stand 3 and axial positioning block 5. The axial positioning block 5 is fixed on the middle part of the upper surface of the base 1 and is used for axial positioning of the shaft gear 9. The stand 3 and the tooth matching assembly are respectively installed on the left and right sides of the axial positioning block 5. The stand 3, the axial positioning block 5 and the support 10 are all fixed on the base 1 by bolts. At least one V-shaped block 2 for radial positioning of the non-tooth part on one side of the shaft gear 9 is arranged on the side of the stand 3 facing the axial positioning block 5.

[0031] The gear assembly includes a vertically arranged support 10 and a locking gear unit and an adjustable gear unit installed on the support 10. The locking gear unit corresponds to the tooth portion of the shaft gear 9, and includes a gear piece 11, a transmission module and an operating handle 13. The gear piece 11 is horizontally penetrated on the support 10, and the operating handle 13 can drive the gear piece 11 to move back and forth through the transmission module to realize the compression positioning or loosening of the tooth portion of the shaft gear 9; the gear piece 11 is a cylindrical structure, and one axial end of the cylindrical gear piece 11 is connected to the transmission module, and the other end is provided with a V-shaped groove for limiting the tooth portion of the shaft gear 9. The gear piece 11 is penetrated in the support 10 through a transition sleeve 12, and a guide groove is provided on the outer wall surface of the gear piece 11 along its axial direction. Pin holes are correspondingly provided on the transition sleeve 12 and the support 10, and positioning pins 14 are fitted in the pin holes and the guide grooves to effectively prevent radial rotation of the gear piece 11 during axial movement.

[0032] The adjustable tooth unit corresponds to the tooth portion of the disc gear 4 and is composed of an adjustable tooth block 6, a stud 7 and a positioning buckle 8. The adjustable tooth block 6 includes a tooth connecting shaft 607, a tooth groove 605 and a fine-tuning screw 604. The tooth connecting shaft 607 is horizontally penetrated in the support 10, and one axial end thereof is connected to the positioning buckle 8 through the stud 7. The positioning buckle 8 can drive the tooth connecting shaft 607 to move back and forth through the stud 7 to realize the compression or loosening of the tooth portion of the disc gear 4 by the adjustable tooth block 6. The other axial end thereof is fixed with an assembly disk 602. The tooth groove 605 is fixed to the assembly disk 602 by four connecting screws 606 arranged at its four corners, and a margin gap is provided between the screw holes on the tooth groove 605 and the connecting screws 606. The tooth connecting shaft 607 is passed through a transition sleeve 12 and is arranged in the support 10. A guide groove is provided on the outer wall surface of the tooth connecting shaft 607 along its axial direction. Pin holes are correspondingly provided on the transition sleeve 12 and the support 10. Positioning pins 14 are fitted in the pin holes and the guide grooves to effectively prevent radial rotation of the tooth connecting shaft 607 during axial movement.

[0033] Two fine-tuning screws 604 are installed above the tooth groove 605 through a fixed bracket 603. The fixed bracket 603 is installed on the support 10 by screws. The fine-tuning screws 604 are vertically penetrated on the fixed bracket 603. A wedge block 601 is fixed to the bottom of each fine-tuning screw 604. The two wedge blocks 601 are symmetrically arranged on both sides of the tooth groove 605 and contact the tooth groove 605. When the connecting screws 606 on the tooth groove 605 are in a loose state, the wedge block 601 can be driven to move up and down by rotating the fine-tuning screw 604 to achieve extrusion-type displacement of the tooth groove 605 to the left and right, thereby achieving fine-tuning of the teeth.

[0034] Preferably, the number of V-shaped blocks 2 on the column 3 is two, and the two V-shaped blocks 2 are arranged in parallel on the column 3 on the side of the column 3 facing the axial positioning block 5.

[0035] Preferably, the surface of the base 1 is provided with a lifting ring 15 at the opposite corners for facilitating the transportation of the base 1.

[0036] The adjustable high-precision gear tooth assembly device of the utility model, in the specific operation and use, first installs the shaft gear 9 on the axial positioning block 5, and makes the left side of the shaft gear 9 be positioned in the radial direction by the positioning assembly, then, the hand-operated handle 13 is operated to press and position the tooth part of the shaft gear 9 by the tooth part 11. Then, the disc gear 4 to be assembled is heated to a certain temperature, the disc gear 4 is assembled on the top shaft of the shaft gear 9 with the heat-insulating gloves, then, the positioning buckle 8 is quickly pulled close, and the tooth part of the disc gear 4 is fixed by the adjustable tooth block 6 through the stud 7. Then, according to the measurement result of the first piece, the position of the adjustable tooth block 6 is adjusted, that is, four connecting screws 606 on the tooth groove 605 are loosened, the micro-adjusting screw 604 is rotated for micro-adjusting, one of the two wedge-shaped blocks 601 is extruded to move the tooth groove 605, the movement amount of the positioning surface of the tooth groove 605 is measured by the dial gauge, then, the connecting screw 606 is fixed, so that the tooth accuracy meets the process. After the measurement is qualified, batch processing can be carried out, and according to the process requirement, the measurement frequency is measured, and after a certain number of processing, due to wear or other external factors, the accuracy may be out of tolerance, and the adjustable tooth unit can be adjusted again to ensure the tooth accuracy requirement and realize mass production.

[0037] The adjustable high-precision gear tooth assembly device of the utility model controls the symmetry of the tooth parts of the two gears to be within 0.04mm or even higher, so that even if the tooth groove is worn during long-term use, the error can be compensated by the micro-adjusting device, the symmetry requirement of the two gears is ensured, and batch production is realized.

[0038] Example one

[0039] As shown in the figure, the adjustable high-precision gear tooth device of the embodiment comprises a base 1, a vertical column 3 is installed on the upper surface of the base 1, two V-shaped blocks 2 are installed on the vertical column 3 in parallel, the two V-shaped blocks 2 are used for radial positioning of the shaft gear 9, an axial positioning block 5 is installed in the middle of the base 1 and is used for axial positioning of the shaft gear 9, a support 10 is installed on the right side of the upper surface of the base 1, a tooth piece 11 and an adjustable tooth block 6 are installed on the support 10 according to the height of the parts, the tooth piece 11 is connected with an operating handle 13 through a transmission module, the shaft gear 9 can be compressed and positioned or disassembled by rotating the operating handle 13 by hand, the tooth piece 11 is used for tooth positioning of the shaft gear 9, the end of the adjustable tooth block 6 is connected with a positioning buckle 8 through a stud 7, one transition sleeve 12 is installed in the middle of the support 10 and the tooth connecting shaft 607 respectively, and one transition sleeve 12 is installed in the middle of the rod of the tooth piece 11, so as to improve the precision and wear resistance, the tooth connecting shaft 607 and the rod of the tooth piece 11 are provided with guide grooves, the transition sleeve 12 is provided with pin holes corresponding to the guide grooves, and the transition sleeve 12 is provided with positioning pins, so as to prevent the adjustable tooth block 6 and the tooth piece 11 from rotating radially and to prevent the axial movement from being limited and separated.

[0040] The adjustable tooth block 6 is composed of wedge-shaped blocks 601, a tooth groove 605 and a tooth connecting shaft 607, the tooth groove 605 is fixed on the assembly disc 602 at the end of the tooth connecting shaft 607 through four connecting screws 606, there is a small gap of about 0.5mm between the screw holes on the tooth groove 605 and the connecting screws 606, a fixed support 603 is installed on the support 10 above the adjustable tooth block 6, and one micro-adjusting screw 604 is installed on the left and right sides, the connecting screws 606 can be loosened during the tooth adjustment process, the micro-adjusting screw 604 is rotated for micro-adjusting, one of the two wedge-shaped blocks 601 is pressed to move in the tooth groove 605, the movement amount of the positioning surface of the tooth groove 605 is measured by using a dial gauge, then the connecting screws 606 are fixed, and the tooth accuracy is ensured to meet the process.

[0041] The vertical column 3 and the support 10 are positioned by the positioning pins and are fixed and connected by four screws respectively, and lifting rings 15 are installed at the opposite ends of the base, so as to provide transportation.

[0042] It should be noted that although the utility model has been described through the above embodiment, the utility model can also have other various embodiments. Those skilled in the art can obviously make various corresponding changes and modifications to the utility model without departing from the spirit and scope of the utility model, but these changes and modifications should belong to the scope protected by the claims and equivalents of the utility model.

Claims

1. An adjustable high-precision gear alignment device for high-precision gear alignment between a disk gear (4) and a shaft gear (9), the gear alignment device comprising a base (1) and a positioning assembly and a gear alignment assembly disposed on the base (1) on the left and right sides thereof, the positioning assembly being used for axial positioning of the lower end of the shaft gear (9) and radial positioning of the non-tooth portion on the axial side of the shaft gear (9), characterized in that: The tooth assembly comprises a vertical support (10) and a locking tooth unit and an adjustable tooth unit mounted on the support (10), the locking tooth unit is arranged corresponding to the tooth part of the shaft gear (9) and comprises a tooth piece (11), a transmission module and an operating handle (13), the tooth piece (11) is horizontally arranged on the support (10), the operating handle (13) can drive the tooth piece (11) to move forward and backward through the transmission module to realize the compression positioning or loosening of the tooth part of the shaft gear (9); The adjustable tooth unit is arranged corresponding to the tooth part of the disc gear (4) and comprises an adjustable tooth block (6), a stud (7) and a positioning buckle (8), the adjustable tooth block (6) comprises a tooth connecting shaft (607), a tooth groove (605) and a fine adjustment screw (604), the tooth connecting shaft (607) is horizontally arranged in the support (10), one end of the tooth connecting shaft (607) is connected with the positioning buckle (8) through the stud (7), the positioning buckle (8) can drive the tooth connecting shaft (607) to move forward and backward through the stud (7) to realize the compression tooth or loosening of the tooth part of the disc gear (4) by the adjustable tooth block (6), the other end of the tooth connecting shaft (607) is fixed with an assembly disc (602), the tooth groove (605) is fixed on the assembly disc (602) through a plurality of connecting screws (606), a gap is arranged between the screw holes on the tooth groove (605) and the connecting screws (606), two fine adjustment screws (604) are mounted on the upper part of the tooth groove (605) through a fixed support (603), the fine adjustment screws (604) are vertically arranged on the fixed support (603), the bottom of each fine adjustment screw (604) is fixed with a wedge-shaped block (601), the two wedge-shaped blocks (601) are symmetrically arranged on the two sides of the tooth groove (605) and are in contact with the tooth groove (605), when the connecting screws (606) on the tooth groove (605) are loosened, the wedge-shaped blocks (601) can be driven to move up and down by rotating the fine adjustment screws (604) to realize the left and right extrusion displacement of the tooth groove (605) and realize the fine adjustment of the tooth.

2. The adjustable high precision gear tooth pairing device according to claim 1, wherein: The positioning assembly comprises a vertical column (3) and an axial positioning block (5), the axial positioning block (5) is fixed on the middle part of the upper surface of the base (1) and is used for the axial positioning of the shaft gear (9), the vertical column (3) and the tooth assembly are respectively arranged on the left and right sides of the axial positioning block (5), at least one V-shaped block (2) is arranged on the side of the vertical column (3) facing the axial positioning block (5) and is used for the non-tooth part radial positioning of one side of the shaft gear (9).

3. The adjustable high precision gear tooth pairing device of claim 2, wherein: The number of the V-shaped blocks (2) on the vertical column (3) is two, and the two V-shaped blocks (2) are arranged in parallel on the side of the vertical column (3) facing the axial positioning block (5).

4. The adjustable high precision gear tooth pairing device of claim 2, wherein: The vertical column (3), the axial positioning block (5) and the support (10) are fixed on the base (1) through bolts.

5. The adjustable high precision gear tooth pairing device of claim 1, wherein: The tooth piece (11) is in a cylindrical structure, one end of the cylindrical tooth piece (11) is connected with the transmission module, and the other end is provided with a V-shaped groove for limiting the tooth part of the shaft gear (9).

6. An adjustable high precision gear tooth pairing device as claimed in claim 5, wherein: The toothed part (11) is arranged in the support (10) through a transition sleeve (12), a guide slot is formed in the outer wall surface of the toothed part (11) along the axial direction, pin holes are formed in the transition sleeve (12) and the support (10) correspondingly, and a positioning pin (14) is arranged in the guide slot and the pin hole in a matched mode, so that the radial rotation of the toothed part (11) during the axial movement is effectively avoided.

7. The adjustable high precision gear tooth pairing device of claim 1, wherein: The toothed connecting shaft (607) is arranged in the support (10) through a transition sleeve (12), a guide slot is formed in the outer wall surface of the toothed connecting shaft (607) along the axial direction, pin holes are formed in the transition sleeve (12) and the support (10) correspondingly, and a positioning pin (14) is arranged in the guide slot and the pin hole in a matched mode, so that the radial rotation of the toothed connecting shaft (607) during the axial movement is effectively avoided.

8. The adjustable high precision gear tooth pairing device of claim 1, wherein: The lifting rings (15) are arranged on the opposite corners of the upper surface of the base (1) and are convenient for the transportation of the base (1).

9. The adjustable high precision gear tooth pairing device of claim 1, wherein: The toothed grooves (605) are fixed on the assembling disc (602) through the four connecting screws (606) arranged at the four corners of the toothed grooves (605).

10. The adjustable high precision gear tooth pairing device of claim 1, wherein: The fixing support (603) is arranged on the support (10) through a screw.

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