CN219734120U - Low-noise low-load arc tooth and back V-shaped angle rack assembly - Google Patents
Low-noise low-load arc tooth and back V-shaped angle rack assembly Download PDFInfo
- Publication number
- CN219734120U CN219734120U CN202321094552.4U CN202321094552U CN219734120U CN 219734120 U CN219734120 U CN 219734120U CN 202321094552 U CN202321094552 U CN 202321094552U CN 219734120 U CN219734120 U CN 219734120U
- Authority
- CN
- China
- Prior art keywords
- roller
- low
- rack
- arc tooth
- rotating shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005096 rolling process Methods 0.000 claims abstract description 24
- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 238000009434 installation Methods 0.000 claims description 13
- 230000013011 mating Effects 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 abstract description 7
- 239000000428 dust Substances 0.000 abstract description 4
- 244000309464 bull Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
Landscapes
- Transmission Devices (AREA)
Abstract
The utility model relates to a low-noise low-load arc tooth and back V-shaped angle rack assembly, which comprises a rack and a driving mechanism matched with the rack, wherein the driving mechanism comprises a base, a rotating shaft and a driving motor, and a roller gear matched with the rack is arranged on the rotating shaft; the roller gear comprises a roller shaft, two roller main bodies and a plurality of rollers, wherein the end parts of the roller shaft are rotatably arranged on a rotating shaft, the two roller main bodies are fixed at the two ends of the roller shaft, the two ends of the plurality of rollers are rotatably arranged on the two roller main bodies respectively, and the plurality of rollers are circumferentially and equidistantly distributed by taking the roller shaft as the center; the front face of the rack is provided with a meshing tooth part, and the meshing tooth part is used for forming rolling meshing with a plurality of rollers of the roller main body. According to the utility model, the roller gear and the rack are in rolling engagement, 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.
Description
Technical Field
The utility model relates to the field of mechanical transmission, in particular to a low-noise low-load arc tooth and back V-shaped angle rack assembly.
Background
The rack is a special gear with teeth distributed on the strip-shaped body, and the rack is also divided into a straight-tooth rack and an oblique-tooth rack which are respectively matched with the straight-tooth cylindrical gear and the oblique-tooth cylindrical gear for use. Along with the continuous improvement of the automation degree of industrial production and the requirement of capacity, the requirement of material transfer among devices on truss framework is also continuously improved, and the linear transmission mode mainly applied in truss mechanisms is a gear rack at present.
At present, chinese patent with publication number CN216279236U discloses a precision grinding V-shaped guide rail rack, which comprises a base plate, the top fixedly connected with V-shaped rack of bottom plate, the top of V-shaped rack is equipped with slide mechanism, slide mechanism includes the base, the box and set up the motor in the box, main gear is installed through first bull stick and second bull stick on the output shaft of motor, main gear meshes with the rack mutually, first pulley and second pulley are installed in the rotation on the base, first slip cooperatees with the back of rack, be provided with on the bottom plate with second pulley complex draw runner.
As is clear from the above-mentioned related art, the sliding of the sliding mechanism can be achieved by the engagement of the main gear with the rack, but when the main gear is engaged with the rack, the engaged gear teeth always have gaps or contact with each other to slide, so that the tooth surfaces are easily worn out, and the noise is loud, and therefore, there is a certain improvement.
Disclosure of Invention
In order to reduce abrasion and solve the problem of loud noise, the utility model provides a low-noise low-load arc tooth and back V-shaped angle rack assembly.
The utility model provides a low-noise low-load arc tooth and a back V-shaped angle rack assembly, which adopts the following technical scheme: the low-noise low-load arc tooth and back V-shaped angle rack assembly comprises a rack and a driving mechanism matched with the rack, wherein the driving mechanism comprises a base, a rotating shaft rotatably installed on the base and a driving motor arranged on the base and used for driving the rotating shaft to rotate, and a roller gear matched with the rack is installed on the rotating shaft;
the roller gear comprises a roller shaft, two roller bodies and a plurality of rollers, wherein the end parts of the roller shaft are rotatably arranged on the rotating shaft, the two roller bodies are fixed at the two ends of the roller shaft, the two ends of the plurality of rollers are rotatably arranged on the two roller bodies respectively, and the plurality of rollers are circumferentially and equidistantly distributed by taking the roller shaft as the center;
the front face of the rack is provided with a meshing tooth part, and the meshing tooth part is used for forming rolling meshing with a plurality of rollers of the roller main body.
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 installation through-hole one side drill way, the apron passes through a plurality of lock bolts to be fixed on the gyro wheel main part, and a plurality of lock bolts circumference equidistant setting, install sealed lid on the installation through-hole opposite side drill way, sealed lid's surface is less than the drill way of installation through-hole.
Optionally, the axial direction of roller shaft has seted up the installing port, the installing port is used for supplying the pivot to pass, be provided with in the installing port with the pivot forms complex fixed knot and constructs.
Optionally, the fixed knot constructs including setting up the tight cover that expands in the installing port department, the tight cover that expands cup joints in the pivot, be provided with first conical surface on the outer wall of tight cover that expands, be provided with on the installing port with first conical surface complex second conical surface, the tight cover that expands is fixed in the gyro wheel main part through a plurality of fixing bolt.
Optionally, the engagement tooth portion is an arc tooth.
Optionally, the back of rack is the rolling fit face, rotate on the base and install with the first pulley that the rolling fit face formed the cooperation.
Optionally, the rolling mating surface is V-shaped, and a V-shaped ring groove adapted to the rolling mating surface is provided on an outer surface of the first pulley.
Optionally, a sliding bar is arranged on one side of the rack, a second pulley is rotatably arranged on the base, and the second pulley is in rotary fit with the side face of the sliding bar.
In summary, the present utility model includes at least one of the following beneficial technical effects:
according to the utility model, the roller gear is driven by the driving motor to enable the roller gear and the rack to move relatively, so that the movement of the driving mechanism on the rack can be realized, wherein the roller gear and the rack are in rolling engagement, the sliding friction between the existing gear and the rack is changed into rolling friction, the noise, vibration, friction and dust in the transmission process are effectively reduced, and the transmission precision is improved.
Drawings
Fig. 1 is a schematic diagram of the cooperation of a drive mechanism and a rack.
Fig. 2 is a schematic structural view of the roller gear.
Fig. 3 is a schematic diagram of the cooperation of the roller gear and the meshing teeth.
Reference numerals illustrate: 1. a rack; 11. a meshing tooth portion; 12. a rolling mating surface; 2. a driving mechanism; 21. a base; 22. a rotating shaft; 23. a driving motor; 24. a roller gear; 241. a roller shaft; 242. a roller body; 243. a roller; 244. mounting through holes; 245. needle roller bearings; 246. sealing cover; 247. a mounting port; 248. a fixed structure; 249. an expansion sleeve; 250. a fixing bolt; 25. a first pulley; 26. v-shaped ring grooves; 27. a second pulley; 3. a slide bar; 4. a cover plate; 5. a locking bolt.
Detailed Description
The utility model is described in further detail below with reference to fig. 1-3.
A low-noise low-load arc tooth and back V-shaped angle rack assembly is shown by referring to FIG. 1, and comprises a rack 1 and a driving mechanism 2 matched with the rack 1, wherein equipment is borne on the driving mechanism 2, and the driving mechanism 2 is matched with the rack 1 so as to standardize the movement track of the equipment.
The driving mechanism 2 comprises a base 21, a rotating shaft 22 rotatably mounted on the base 21, and a driving motor 23 arranged on the base 21 and used for driving the rotating shaft 22 to rotate, wherein a roller gear 24 matched with the rack 1 is mounted on the rotating shaft 22. According to the utility model, the roller gear 24 is driven by the driving motor 23 to enable the roller gear 24 and the rack 1 to move relatively, so that the movement of the driving mechanism 2 on the rack 1 can be realized, wherein the roller gear 24 is in rolling engagement with the rack 1, the sliding friction between the existing gear and the rack 1 is changed into rolling friction, the noise, vibration, friction and dust generated in the transmission process are effectively reduced, and the transmission precision is improved.
Referring to fig. 2 and 3, the roller gear 24 includes a roller shaft 241, two roller bodies 242 and a plurality of rollers 243, the roller bodies 242 are integrally arranged in a disc shape, the centers of the two roller bodies 242 are fixed at two ends of the roller shaft 241, the space formed between the two roller bodies 242 is adapted to the width of the rack 1, two ends of the plurality of rollers 243 are respectively rotatably mounted on the two roller bodies 242, and the plurality of rollers 243 are circumferentially distributed at equal intervals with the roller shaft 241 as the center.
Specifically, a plurality of mounting through holes 244 are formed in the two roller bodies 242, the mounting through holes 244 penetrate through the roller bodies 242, the plurality of mounting through holes 244 are distributed at equal intervals in the circumferential direction of the center of the roller bodies 242, two ends of the roller 243 are respectively rotatably mounted in the two corresponding mounting through holes 244 of the two roller bodies 242, and a needle bearing 245 for forming fit with the end of the roller 243 is arranged in each mounting through hole 244.
The surface of the roller body 242 is provided with a cover plate 4 for covering the hole on one side of the mounting through hole 244, the cover plate 4 is disc-shaped, the cover plate 4 covers all the holes on one side of the mounting through hole 244, the cover plate 4 is fixed on the roller body 242 through a plurality of locking bolts 5, the locking bolts 5 are arranged at equal intervals in the circumferential direction of the center of the roller body 242, wherein a sealing cover 246 is arranged on the hole on the other side of the mounting through hole 244, and the surface of the sealing cover 246 is lower than the hole of the mounting through hole 244.
The present utility model is provided by the cover plate 4 and the sealing cover 244 for preventing external dust from entering into the mounting through hole 244.
The end of the roller shaft 241 is rotatably mounted on the rotating shaft 22, that is, a mounting opening 247 is formed in the axial direction of the roller shaft 241, the mounting opening 247 is used for allowing the rotating shaft 22 to pass through, and a fixing structure 248 matched with the rotating shaft 22 is arranged in the mounting opening 247.
The fixed structure 248 includes the expansion sleeve 249 that sets up in the installation mouth 247 department, expansion sleeve 249 cup joints on pivot 22, be provided with first conical surface on the outer wall of expansion sleeve 249, be provided with on the installation mouth 247 with first conical surface complex second conical surface, expansion sleeve 249 is fixed on gyro wheel main part 242 through a plurality of fixing bolts 250, a plurality of fixing bolts 250 are equidistant distributed with the central circumference of gyro wheel main part 242, wherein, the expansion joint that runs through along its circumference direction on the outer wall of expansion sleeve 249, the setting of expansion joint makes expansion sleeve 249 compress tightly pivot 22 when inwards contracting, loosen pivot 22 when outwards opening.
The depth of the expansion sleeve 249 at the mounting opening 247 can be adjusted by rotating the fixing bolt 250, and the expansion sleeve 249 can continuously compress the rotating shaft 22 by matching the first conical surface and the second conical surface, so that the fixation between the rotating shaft 22 and the roller shaft 241 is realized.
Wherein the expanding sleeve 249 is arranged on the side of the roller body 242 with the cover plate 4.
It should be noted that, the fixing structure 248 between the rotating shaft 22 and the mounting opening 247 may also be spline, flat key, etc., and the fixing structure 248 may be selected according to the specific situation, which is not limited in this embodiment.
Referring to fig. 2 and 3, the front surface of the rack 1 is provided with a meshing tooth 11, and the meshing tooth 11 is used for rolling engagement with a plurality of rollers 243 of the roller body 242, and in one embodiment, the meshing tooth 11 is an arc-shaped tooth.
The back of the rack 1 is a rolling matching surface 12, a first pulley 25 matched with the rolling matching surface 12 is rotatably installed on the base 21, a rotating rod is fixedly installed on the base 21 in a rotating installation mode between the first pulley 25 and the base 21, and the first pulley 25 is installed on the rotating rod through a bearing, so that the self-rotation of the first pulley 25 is realized.
In one embodiment, the rolling surface 12 is V-shaped, and the outer surface of the first pulley 25 is provided with a V-shaped ring groove 26 adapted to the rolling surface 12. The roller gear 24 and the first pulley 25 respectively clamp the front meshing tooth part 11 and the back rolling matching surface 12 of the rack 1, so that the sliding precision and the running stability of the driving mechanism 2 on the rack 1 can be effectively improved.
Referring to fig. 1, a slide bar 3 is disposed on one side of a rack 1, a second pulley 27 is rotatably mounted on a base 21, the second pulley 27 is rotatably matched with a side surface of the slide bar 3, a rotating rod is fixedly mounted on the base 21 in a manner of rotation mounting between the second pulley 27 and the base 21, and the second pulley 27 is mounted on the rotating rod through a bearing, so that the second pulley 27 rotates automatically.
In one embodiment, the side surface of the sliding strip 3 is a flat surface, the outer surface of the second pulley 27 is a flat surface matched with the side surface of the sliding strip 3, and the sliding precision of the driving mechanism 2 can be further improved through the arrangement of the sliding strip 3 and the second pulley 27.
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 (10)
1. The low-noise low-load arc tooth and back V-shaped angle rack assembly comprises a rack (1) and a driving mechanism (2) matched with the rack (1), and is characterized in that the driving mechanism (2) comprises a base (21), a rotating shaft (22) rotatably installed on the base (21) and a driving motor (23) arranged on the base (21) and used for driving the rotating shaft (22) to rotate, and a roller gear (24) matched with the rack (1) is installed on the rotating shaft (22);
the roller gear (24) comprises a roller shaft (241), two roller main bodies (242) and a plurality of rollers (243), wherein the end parts of the roller shaft (241) are rotatably arranged on the rotating shaft (22), the two roller main bodies (242) are fixed at the two ends of the roller shaft (241), the two ends of the plurality of rollers (243) are rotatably arranged on the two roller main bodies (242) respectively, and the plurality of rollers (243) are circumferentially and equidistantly distributed by taking the roller shaft (241) as the center;
the front surface of the rack (1) is provided with a meshing tooth part (11), and the meshing tooth part (11) is used for forming rolling meshing with a plurality of rollers (243) of the roller main body (242).
2. The low-noise low-load arc tooth and back V-shaped angle rack assembly according to claim 1, wherein a plurality of mounting through holes (244) are formed in two roller bodies (242), the mounting through holes (244) penetrate through the roller bodies (242), the plurality of mounting through holes (244) are distributed at equal intervals in the circumferential direction of the center of the roller bodies (242), and two ends of the roller (243) are rotatably mounted in the two corresponding mounting through holes (244) of the two roller bodies (242).
3. A low noise low load circular arc tooth and back V-angle rack assembly as in claim 2 wherein a needle bearing (245) is provided in each mounting through hole (244) for mating with the end of the roller (243).
4. The low-noise low-load circular arc tooth and back V-shaped angle rack assembly according to claim 2, wherein a cover plate (4) for covering one side hole of the installation through hole (244) is arranged on the surface of the roller body (242), the cover plate (4) is fixed on the roller body (242) through a plurality of locking bolts (5), the locking bolts (5) are circumferentially and equidistantly arranged, a sealing cover (246) is arranged on the other side hole of the installation through hole (244), and the surface of the sealing cover (246) is lower than the hole of the installation through hole (244).
5. The low-noise low-load circular arc tooth and back V-shaped angle rack assembly according to claim 1, wherein a mounting opening (247) is formed in the axial direction of the roller shaft (241), the mounting opening (247) is used for allowing a rotating shaft (22) to pass through, and a fixing structure (248) matched with the rotating shaft (22) is arranged in the mounting opening (247).
6. The low-noise low-load circular arc tooth and back V-shaped angle rack assembly according to claim 5, wherein the fixing structure (248) comprises an expansion sleeve (249) arranged at the mounting opening (247), the expansion sleeve (249) is sleeved on the rotating shaft (22), a first conical surface is arranged on the outer wall of the expansion sleeve (249), a second conical surface matched with the first conical surface is arranged on the mounting opening (247), and the expansion sleeve (249) is fixed on the roller body (242) through a plurality of fixing bolts (250).
7. The low noise low load circular arc tooth and back V angle rack assembly of claim 1, wherein said engagement teeth (11) are arcuate teeth.
8. The low-noise low-load circular arc tooth and back V-shaped angle rack assembly according to claim 1, wherein the back of the rack (1) is a rolling mating surface (12), and the base (21) is rotatably provided with a first pulley (25) which is mated with the rolling mating surface (12).
9. The low-noise low-load circular arc tooth and back V-shaped angle rack assembly according to claim 8, wherein the rolling mating surface (12) is V-shaped, and a V-shaped ring groove (26) adapted to the rolling mating surface (12) is provided on an outer surface of the first pulley (25).
10. The low noise low load circular arc tooth and back V-angle rack assembly of claim 1, wherein,
one side of the rack (1) is provided with a slide bar (3), a second pulley (27) is rotatably arranged on the base (21), and the second pulley (27) is in rotary fit with the side face of the slide bar (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321094552.4U CN219734120U (en) | 2023-05-06 | 2023-05-06 | Low-noise low-load arc tooth and back V-shaped angle rack assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321094552.4U CN219734120U (en) | 2023-05-06 | 2023-05-06 | Low-noise low-load arc tooth and back V-shaped angle rack assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219734120U true CN219734120U (en) | 2023-09-22 |
Family
ID=88064240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321094552.4U Active CN219734120U (en) | 2023-05-06 | 2023-05-06 | Low-noise low-load arc tooth and back V-shaped angle rack assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219734120U (en) |
-
2023
- 2023-05-06 CN CN202321094552.4U patent/CN219734120U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1327196C (en) | Rotary cutting tool | |
| US10105819B2 (en) | Support and coupling assembly for a screw auger having multiple coupled screws | |
| US11273989B2 (en) | Chain driving sprocket for trolley conveyors | |
| WO2020062647A1 (en) | Oldham ring, an oldham coupling, and a harmonic reducer | |
| CN219734120U (en) | Low-noise low-load arc tooth and back V-shaped angle rack assembly | |
| CN101639098A (en) | Short rzeppa synchronous universal coupling | |
| US6220760B1 (en) | Three-ring needle bearing | |
| US20210010565A1 (en) | Planetary gearbox and associated robot joint and robot | |
| CN218670197U (en) | Anti-reverse self-locking bearing assembly | |
| CN208845595U (en) | Cross slip ring, cross slide block coupling and harmonic reducer | |
| JP3564184B2 (en) | Planetary roller speed reducer with motor | |
| CN215763110U (en) | Zero-backlash roller and rack transmission device | |
| CN214367677U (en) | Walking driving device and engineering machinery | |
| CN211449546U (en) | Roller rack transmission mechanism | |
| CN220816429U (en) | Hub reduction gear of adjustable centre-to-centre spacing | |
| CN101254855A (en) | Roller delivery mechanism | |
| CN211598920U (en) | Durable gear motor transmission seat | |
| CN218640019U (en) | Guide wheel mechanism of rope saw | |
| CN212711140U (en) | Anti-deviation combined conveying belt | |
| CN221103101U (en) | Rotating shaft mechanism | |
| CN219062363U (en) | Main shaft uninstallation transmission polywedge bet wheel | |
| CN218935206U (en) | Single-bearing synchronous pulley | |
| CN216842982U (en) | Synchronizing wheel with different material structures | |
| CN216555253U (en) | Thrust structure for thrust needle roller bearing end face of walking speed reducer | |
| CN201232717Y (en) | Short ball cage type synchronous universal coupling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |