CN219755263U

CN219755263U - Sectional gear ring roller gear structure

Info

Publication number: CN219755263U
Application number: CN202321105331.2U
Authority: CN
Inventors: 张绍明
Original assignee: Taizhou Lead Rack Co ltd
Current assignee: Taizhou Lead Rack Co ltd
Priority date: 2023-05-06
Filing date: 2023-05-06
Publication date: 2023-09-26
Anticipated expiration: 2033-05-06

Abstract

The utility model relates to a segmented gear ring roller gear structure which comprises a gear ring and a roller gear, wherein the gear ring is provided with meshing teeth meshed with the roller gear, the gear ring is divided into a plurality of tooth segments by taking the lowest part of the meshing teeth as a dividing line, a plurality of bolt mounting holes are formed in the side surface of each tooth segment at intervals, and an end surface pre-fixing part is arranged between two adjacent tooth segments. When a plurality of tooth segments are spliced to form the gear ring in a surrounding way, the end parts of the tooth segments are opposite to each other, and then the two adjacent tooth segments are butted together through the end surface pre-fixing part, so that the meshed tooth parts on the butted adjacent tooth segments are continuous and are not easy to shift during subsequent installation, and after the two adjacent tooth segments are pre-positioned, the tooth segments are installed on the corresponding installation rack through the bolt installation holes on the side surfaces of the tooth segments, and the installation efficiency of the gear ring is effectively improved.

Description

Sectional gear ring roller gear structure

Technical Field

The utility model relates to the field of mechanical transmission, in particular to a segmented gear ring roller gear structure.

Background

Very large gear rings are quite common in the mechanical industry, however, transportation and installation of the very large gear rings are difficult, and based on the fact, sectional designs are adopted for the very large gear rings in the industry at present. Namely, the whole gear ring is divided into a plurality of sections of single-section gear rings, the single-section gear rings are small in size and high in transportation convenience, and the whole gear rings are assembled by only assembling the sections of single-section gear rings in the later period, so that the gear ring is quite convenient.

The conventional assembly mode of the sectional gear ring at present is that the end part of the single-section gear ring is aligned with the end part, then the single-section gear ring is locked on the corresponding installation rack through bolts, and the end part are required to be aligned with each other with high precision when the single-section gear ring is spliced into a complete gear ring, so that the bolts are required to be continuously loosened to adjust the splicing position between the single-section gear rings in the installation process, the installation efficiency is low, and therefore, certain improvement exists.

Disclosure of Invention

In order to improve the installation efficiency, the utility model provides a segmented gear ring roller gear structure.

The utility model provides a segmented gear ring roller gear structure which adopts the following technical scheme:

the utility model provides a segmentation ring gear gyro wheel gear structure, includes ring gear and gyro wheel gear, have on the ring gear with gyro wheel gear meshing tooth portion, the ring gear uses the minimum of its meshing tooth portion to be the parting line in order to with the ring gear is cut apart into a plurality of tooth sections, and every tooth section's side interval is provided with a plurality of bolt mounting holes, adjacent two be provided with terminal surface pre-fixing portion between the tooth section.

Optionally, the terminal surface is fixed portion in advance including seting up at the mortise and tenon fourth of twelve earthly branches groove of two adjacent tooth section tip, and with mortise and tenon fourth of twelve earthly branches groove complex mortise and tenon fourth of twelve earthly branches piece.

Optionally, the mortise slot comprises a first mortise slot formed at one end of the tooth segment and a second mortise slot formed at the other end of the tooth segment to be matched with the first mortise slot, and the first mortise slot and the second mortise slot are combined to form the mortise slot.

Optionally, the first dovetail groove and the second dovetail groove are respectively arranged in a dovetail shape.

Optionally, the gyro wheel gear includes roller shaft, two gyro wheel main part and a plurality of roller, two the gyro wheel main part is fixed the both ends of roller shaft, a plurality of the both ends of roller are installed on two gyro wheel main parts respectively in the rotation, a plurality of the roller uses the roller shaft as central circumference equidistant distribution, the meshing tooth portion of ring gear is used for forming rolling engagement with a plurality of rollers.

Optionally, a plurality of installation through holes are formed in the two roller bodies, the installation through holes penetrate through the roller bodies, the installation through holes are distributed at equal intervals in the circumferential direction of the center of the roller bodies, and two ends of the roller are respectively and rotatably installed in the two corresponding installation through holes of the two roller bodies.

Optionally, a needle bearing is disposed in each mounting bore for mating with the roller end.

Optionally, the surface of gyro wheel main part is provided with the apron that is used for covering all installation through-hole one side drill way, the apron is fixed on the gyro wheel main part through a plurality of lock bolts, and a plurality of lock bolts set up with the equidistant in central circumference of gyro wheel main part.

Optionally, a sealing cover is installed on the orifice of the other side of the installation through hole, and the surface of the sealing cover is lower than the orifice of the installation through hole.

Optionally, the engagement tooth portion is an arc tooth.

In summary, the present utility model includes at least one of the following beneficial technical effects:

when a plurality of tooth segments are spliced to form the gear ring in a surrounding way, the end parts of the tooth segments are opposite to each other, and then the two adjacent tooth segments are butted together through the end surface pre-fixing part, so that the meshed tooth parts on the butted adjacent tooth segments are continuous and are not easy to shift during subsequent installation, and after the two adjacent tooth segments are pre-positioned, the tooth segments are installed on the corresponding installation rack through the bolt installation holes on the side surfaces of the tooth segments, and the installation efficiency of the gear ring is effectively improved.

Drawings

Fig. 1 is a schematic diagram of the cooperation of a ring gear and a roller gear.

Fig. 2 is a schematic diagram of a splicing state of tooth segments.

Fig. 3 is a schematic structural view of the end face pre-fixing portion.

Fig. 4 is a schematic structural view of the roller gear.

Reference numerals illustrate: 1. a gear ring; 101. tooth sections; 102. a meshing tooth portion; 103. a bolt mounting hole; 2. a roller gear; 21. a roller shaft; 22. a roller body; 23. a roller; 24. mounting through holes; 25. needle roller bearings; 26. a cover plate; 27. a locking bolt; 28. sealing cover; 29. a mounting port; 30. a fixed structure; 301. an expansion sleeve; 302. a fixing bolt; 3. a drive shaft; 4. an end face pre-fixing part; 41. mortise and tenon grooves; 411. a first dovetail slot; 412. a second dovetail slot; 42. mortise and tenon block.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-4.

The utility model provides a segmentation ring gear gyro wheel gear structure, referring to fig. 1, including ring gear 1 and gyro wheel gear 2, gyro wheel gear 2 is used for fixing on actuating mechanism's drive shaft 3, and ring gear 1 wholly takes the form of ring, has the meshing tooth portion 102 with gyro wheel gear 2 meshing on the ring gear 1, through gyro wheel gear 2 and ring gear 1 meshing, can realize that gyro wheel gear 2 drives ring gear 1 and rotates, also can realize that gyro wheel gear 2 moves along ring gear 1.

Referring to fig. 2 and 3, the gear ring 1 uses the lowest position of the meshing gear 102 as a dividing line to divide the gear ring 1 into a plurality of gear segments 101, the meshing gear 102 is an arc-shaped gear, so that the end of the tooth of the meshing gear 102 is the highest position, and the joint between adjacent teeth is the lowest position.

An end face pre-fixing part 4 is arranged between two adjacent tooth segments 101, a plurality of bolt mounting holes 103 are arranged on the side face of each tooth segment 101, and the bolt mounting holes 103 are distributed at equal intervals.

Specifically, the end face pre-fixing portion 4 includes a mortise slot 41 formed in the end of two adjacent tooth segments 101, and a mortise and tenon block 42 engaged with the mortise slot 41. Wherein, the mortise slot 41 includes a first mortise slot 411 formed at an end of one tooth segment 101, and a second mortise slot 412 formed at an end of the other tooth segment 101 to cooperate with the first mortise slot 411, and the first mortise slot 411 and the second mortise slot 412 are combined to form the mortise slot 41. In one embodiment, the first dovetail slot 411 and the second dovetail slot 412 are each provided in a dovetail shape.

Therefore, when the gear ring 1 is formed by surrounding and splicing the plurality of tooth segments 101, the end parts of the tooth segments 101 are opposite to each other, and then the two adjacent tooth segments 101 are butted together through the end surface pre-fixing part 4, so that the engaged tooth parts 102 on the butted adjacent tooth segments 101 are continuous and are not easy to shift during subsequent installation, and after the two adjacent tooth segments 101 are pre-positioned, the tooth segments 101 are installed on the corresponding installation frame through the bolt installation holes 103 on the side surfaces of the tooth segments 101, and the installation efficiency of the gear ring 1 is effectively improved.

And when the meshing teeth 102 on one of the tooth sections 101 are damaged, the tooth section 101 can be independently replaced without replacing the whole gear ring 1, so that the maintenance cost is reduced.

Referring to fig. 1 and 4, the roller gear 2 includes a roller shaft 21, two roller bodies 22 and a plurality of rollers 23, the roller bodies 22 are integrally arranged in a disc shape, the centers of the two roller bodies 22 are fixed at two ends of the roller shaft 21, a space formed between the two roller bodies 22 is matched with the width of the gear ring 1, two ends of the plurality of rollers 23 are respectively rotatably mounted on the two roller bodies 22, the plurality of rollers 23 are circumferentially and equidistantly distributed by taking the roller shaft 21 as the center, and the meshing teeth 102 of the gear ring 1 are used for forming rolling meshing with the plurality of rollers 23.

The two roller bodies 22 are provided with a plurality of mounting through holes 24, the mounting through holes 24 penetrate through the roller bodies 22, the plurality of mounting through holes 24 are distributed at equal intervals along the circumferential direction of the centers of the roller bodies 22, and two ends of the roller 23 are respectively rotatably mounted in the two corresponding mounting through holes 24 of the two roller bodies 22. Wherein each of the mounting through holes 24 is provided therein with a needle bearing 25 for forming a fit with the end of the roller 23.

The surface of the roller body 22 is provided with a cover plate 26 for covering all the holes on one side of the mounting through holes 24, the cover plate 26 is integrally arranged in a disc shape, the cover plate 26 covers all the holes on one side of the mounting through holes 24, the cover plate 26 is fixed on the roller body 22 through a plurality of locking bolts 27, and the locking bolts 27 are arranged at equal intervals in the circumferential direction of the center of the roller body 22. Wherein, the sealing cover 28 is arranged on the other side orifice of the mounting through hole 24, and the surface of the sealing cover 28 is lower than the orifice of the mounting through hole 24. The present utility model can prevent external dust from entering the installation through-hole 24 by providing the cover plate 26 and the sealing cover 28.

The end of the roller shaft 21 is rotatably mounted on the driving shaft 3 of the driving mechanism, i.e. the axial direction of the roller shaft 21 is provided with a mounting opening 29, the mounting opening 29 is used for the driving shaft 3 to pass through, and a fixing structure 30 which is matched with the driving shaft 3 is arranged in the mounting opening 29.

The fixed knot constructs 30 including setting up the tight cover 301 that expands in the erection joint 29 department, the tight cover 301 that expands cup joints on drive shaft 3, be provided with first conical surface on the outer wall of tight cover 301 that expands, be provided with on the erection joint 29 with first conical surface complex second conical surface, the tight cover 301 that expands is fixed on gyro wheel main part 22 through a plurality of fixing bolt 302, a plurality of fixing bolt 302 are equidistant distribution with the central circumference of gyro wheel main part 22, wherein, the tight seam that expands that runs through along its circumference direction on the outer wall of tight cover 301 that expands, the tight seam that expands sets up makes the tight cover 301 that expands can compress tightly drive shaft 3 when inwards shrink, loosen drive shaft 3 when outwards opening.

The depth of the expansion sleeve 301 at the mounting opening 29 can be adjusted by rotating the fixing bolt 302, and the expansion sleeve 301 can continuously compress the driving shaft 3 through the cooperation of the first conical surface and the second conical surface, so that the fixing between the driving shaft 3 and the roller shaft 21 is realized. Wherein the expansion sleeve 301 is disposed on the side of the roller body 22 having the cover 26.

It should be noted that, the fixing structure 30 between the driving shaft 3 and the mounting opening 29 may also be a spline, a flat key, or the like, and the fixing structure 30 may be selected according to the specific situation, which is not limited in this embodiment.

According to the utility model, the roller gear 2 is in rolling engagement with the meshing tooth part 102 of the gear ring 1, so that the sliding friction between the existing gear and the rack is changed into rolling friction, noise, vibration, friction and dust in the transmission process are effectively reduced, and the transmission precision is improved.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. The utility model provides a segmentation ring gear gyro wheel gear structure, includes ring gear (1) and gyro wheel gear (2), have on ring gear (1) with meshing tooth portion (102) of gyro wheel gear (2) meshing, a serial communication port, ring gear (1) use the minimum of its meshing tooth portion (102) to be the parting line in order to with ring gear (1) is cut apart into a plurality of tooth sections (101), and the side interval of every tooth section (101) is provided with a plurality of bolt mounting holes (103), and adjacent two be provided with terminal surface pre-fixing portion (4) between tooth section (101).

2. The segmented gear wheel and roller structure according to claim 1, wherein the end face pre-fixing portion (4) comprises mortise and tenon grooves (41) formed in the end portions of two adjacent tooth segments (101), and mortise and tenon blocks (42) matched with the mortise and tenon grooves (41).

3. The segmented ring gear roller gear structure according to claim 2, wherein the mortise slot (41) includes a first mortise slot (411) formed at an end of one of the tooth segments (101), and a second mortise slot (412) formed at an end of the other tooth segment (101) to be engaged with the first mortise slot (411), and the first mortise slot (411) and the second mortise slot (412) are joined to form the mortise slot (41).

4. A segmented ring gear roller gear arrangement according to claim 3, wherein the first dovetail groove (411) and the second dovetail groove (412) are each provided in a dovetail shape.

5. The segmented gear ring roller gear structure according to claim 1, wherein the roller gear (2) comprises a roller shaft (21), two roller bodies (22) and a plurality of rollers (23), the two roller bodies (22) are fixed at two ends of the roller shaft (21), the two ends of the plurality of rollers (23) are respectively rotatably mounted on the two roller bodies (22), the plurality of rollers (23) are circumferentially distributed at equal intervals with the roller shaft (21) as a center, and the meshing teeth (102) of the gear ring (1) are used for forming rolling meshing with the plurality of rollers (23).

6. The segmented gear ring roller gear structure according to claim 5, wherein a plurality of mounting through holes (24) are formed in the two roller bodies (22), the mounting through holes (24) penetrate through the roller bodies (22), the plurality of mounting through holes (24) are distributed at equal intervals in the circumferential direction of the center of the roller bodies (22), and two ends of the roller (23) are rotatably mounted in the two corresponding mounting through holes (24) of the two roller bodies (22) respectively.

7. A segmented ring gear roller gear arrangement according to claim 6, characterized in that a needle bearing (25) is provided in each mounting through hole (24) for forming a fit with the end of the roller (23).

8. A segmented ring gear roller gear structure according to claim 7, characterized in that the surface of the roller body (22) is provided with a cover plate (26) for covering all the openings on one side of the mounting through holes (24), the cover plate (26) is fixed on the roller body (22) by a plurality of locking bolts (27), and the plurality of locking bolts (27) are arranged at equal intervals in the circumferential direction of the center of the roller body (22).

9. A segmented ring gear roller gear structure according to claim 8, wherein a seal cover (28) is mounted on the other side aperture of the mounting through hole (24), and the surface of the seal cover (28) is lower than the aperture of the mounting through hole (24).

10. A segmented ring gear roller gear arrangement according to claim 1, wherein the engagement teeth (102) are arcuate teeth.