CN217108107U - Spinning cone pulley assembly - Google Patents
Spinning cone pulley assembly Download PDFInfo
- Publication number
- CN217108107U CN217108107U CN202221004594.XU CN202221004594U CN217108107U CN 217108107 U CN217108107 U CN 217108107U CN 202221004594 U CN202221004594 U CN 202221004594U CN 217108107 U CN217108107 U CN 217108107U
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- groove
- dabber
- pulley
- welding
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Abstract
The utility model discloses a spinning formula cone pulley assembly, including the big band pulley in V groove, the little band pulley in V groove, dabber and axle sleeve, the axle sleeve cup joints the setting at the spindle, and the one end and the big band pulley welding in V groove of dabber, the other end of dabber pass behind the little band pulley in V groove rather than the welding, and the axial of dabber is provided with the hole, and the hole broaching has the keyway, and the middle part rigidity of dabber has the sprue, and the keyway is used for being connected fixedly with the main shaft with the sprue. The utility model discloses an adopt spinning and punching press to make spinning-type cone pulley assembly, structural design is novel, the machining precision is high, the structure is light, and the cost of formation is low, production efficiency is high for supporting for internal lawn mower producer product, application prospect is very wide.
Description
Technical Field
The utility model belongs to the technical field of transmission, concretely relates to spinning cone pulley assembly for on lawn mower.
Background
The step pulley is a pulley with various diameters and is a transmission member for changing the rotating speed. Usually two cone pulleys are used in combination. The power and motion are input by a driving shaft and output by a driven shaft through a belt and cone pulley device. When the diameters of the driving wheel and the driven wheel where the belt is located are equal, constant-speed transmission is achieved. The position of the belt is changed, and when the belt is positioned at the position where the diameter of the driving wheel is smaller than that of the driven wheel, speed reduction transmission is realized; when the diameter of the driving wheel is larger than that of the driven wheel, speed-increasing transmission is realized, the cone pulley structure used on the mower at present is usually formed by casting or stamping, two belt pulleys are separately processed and then assembled together, and the cone pulley with the structure has the problems of low production efficiency, high processing cost and low product precision.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the prior art, the utility model aims to provide a xuan asia teacher's cone pulley assembly for on the lawn mower.
The utility model discloses a following technical scheme realizes:
spinning formula cone pulley assembly, including the big band pulley in V groove, the little band pulley in V groove, dabber and axle sleeve, the axle sleeve cup joints and sets up in the dabber, the one end and the big band pulley in V groove welding of dabber, the other end of dabber pass behind the little band pulley in V groove rather than the welding, the axial of dabber is provided with the hole, and the hole broach has the keyway, the middle part rigidity of dabber has the sprue, the keyway is used for being connected fixedly with the main shaft with the sprue.
Furthermore, the plug is circular, and its central point puts and is provided with the mounting hole, be provided with the welding hole on the perisporium that the dabber corresponds the plug, realize the welding of plug and dabber through the welding hole.
Furthermore, the welding hole is provided with three, and sets up along dabber annular wall equipartition, and the welding hole is the circular through-hole of diameter 7 mm.
Further, the inner hole of the mandrel and the mounting hole are coaxially arranged.
Furthermore, the opening angle of the rims of the V-groove large belt wheel and the V-groove small belt wheel is 32 degrees +/-1 degree, the fillet R3.5mm at the bottom of the rim of the V-groove large belt wheel and the fillet R3mm at the bottom of the rim of the V-groove small belt wheel.
Furthermore, the outer diameter of the V-groove large belt wheel is 147.6 +/-1 mm, and the outer diameter of the V-groove small belt wheel is 127 +/-1 mm.
Furthermore, the spoke corresponding positions of the V-groove large belt wheel and the V-groove small belt wheel are provided with water leakage holes.
The utility model discloses an adopt spinning and punching press to make spinning-type cone pulley assembly, structural design is novel, the machining precision is high, the structure is light, and the cost of formation is low, production efficiency is high for supporting for internal lawn mower producer product, application prospect is very wide.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a view of the relationship of the block to the mandrel;
in the figure, 1-V groove large belt wheel, 2-V groove small belt wheel, 3-mandrel, 4-shaft sleeve, 5-inner hole, 6-block, 7-mounting hole and 8-water leakage hole.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings for better understanding of the technical solution.
The spinning cone pulley assembly of the utility model is used for meeting the transmission requirement of the belt pulley of the grass cutter, the material is made by spinning 4mm steel plates and welding mandrels, the concrete structure is shown in figure 1-2, and comprises a V-groove big belt pulley 1 with the outer diameter of 147.6 +/-1 mm and a V-groove small belt pulley 2 with the outer diameter of 127 +/-1 mm, dabber 3 and axle sleeve 4, the opening angle of the wheel rim of the big band pulley of V groove 1 and the little band pulley of V groove 2 is 32 +/-1, the wheel rim bottom fillet R3.5mm of the big band pulley of V groove 1, the wheel rim bottom fillet R3mm of the little band pulley of V groove 2, axle sleeve 4 cup joints the setting on dabber 3, the one end and the big band pulley 1 welding of V groove of dabber 3, the other end of dabber 3 passes behind the little band pulley of V groove 2 rather than the welding, the axial of dabber 3 is provided with hole 5, hole 5 broaching has the keyway, the middle part position of dabber 3 is fixed with sprue 6, the keyway is used for being connected fixedly with the main shaft with sprue 6.
Wherein, sprue 6 is circular, and sprue 6's central point puts and is provided with mounting hole 7, and this mounting hole 7 sets up for with the axle center with dabber 3's hole 5, and the equipartition is provided with three diameter and is 7mm circular welding hole on dabber 3 corresponds sprue 6's the perisporium, realizes sprue 6 and dabber 3's welding through the welding hole. In order to avoid the rusting of the belt wheel, water leakage holes 8 are formed in the corresponding positions of the spokes of the V-groove large belt wheel 1 and the V-groove small belt wheel 2.
The utility model discloses cone pulley assembly adds man-hour, adopt spinning and stamping forming technology, V groove big band pulley 1 and V groove tabula rase 2 form through the spinning splitting technology, jump in order to guarantee the V groove, the hole 5 is reprocessed with dabber 3 welding back to the belt pulley, hole 5 broaching keyway, so that install on the main shaft through the key-type connection, can bear bigger moment of torsion, be connected for realizing the firm of main shaft, adopt 6 blockings of ring sprue in the middle of 3 dabbers, drop for avoiding 6 clashes of sprue, bore through the welding hole that three diameter is 7mm at 3 circumferences of dabber, and weld the increase firmness in addition. In order to ensure the concentricity and the jumping of the V-groove large belt wheel 1, the inner hole is used as a reference for clamping, and the outer circle and the end face of the other end of the mandrel are processed. And then welding the V-groove large belt 1, ensuring the concentricity requirement of the V-groove large belt wheel 1 and the V-groove small belt wheel 2, and the cone pulley assembly with the structure has the characteristics of high precision, low production cost, light structure, high assembly efficiency and the like.
Claims (7)
1. Spinning formula cone pulley assembly, including big band pulley in V groove (1), the little band pulley in V groove (2), dabber (3) and axle sleeve (4), axle sleeve (4) cup joint the setting on dabber (3), its characterized in that the one end and the big band pulley in V groove (1) welding of dabber (3), the other end of dabber (3) pass behind the little band pulley in V groove (2) rather than the welding, the axial of dabber (3) is provided with hole (5), and the hole broach has the keyway, the middle part position of dabber (3) is fixed with sprue (6), the keyway is used for being connected fixedly with the main shaft with sprue (6).
2. The spinning cone pulley assembly according to claim 1, characterized in that the plug (6) is circular, and a mounting hole (7) is formed in the center thereof, and a welding hole is formed in the circumferential wall of the mandrel (3) corresponding to the plug (6), and the welding of the plug (6) and the mandrel (3) is realized through the welding hole.
3. A spinning cone pulley assembly according to claim 2, characterized in that there are three welding holes, which are circular holes with a diameter of 7mm, and are uniformly distributed along the annular wall of the mandrel (3).
4. A spinning cone pulley assembly according to claim 2, characterized in that the inner bore of the mandrel (3) and the mounting hole (7) are arranged coaxially.
5. The spinning cone pulley assembly as claimed in claim 1, wherein the opening angle of the rims of the V-groove large pulley (1) and the V-groove small pulley (2) is 32 ° ± 1 °, the rim bottom fillet R3.5mm of the V-groove large pulley (1), and the rim bottom fillet R3mm of the V-groove small pulley (2).
6. The spinning cone pulley assembly according to claim 1, characterized in that the outer diameter of the V-groove large pulley (1) is 147.6 ± 1mm, and the outer diameter of the V-groove small pulley (2) is 127 ± 1 mm.
7. The spinning cone pulley assembly according to claim 1, wherein the spokes of the V-groove large pulley (1) and the V-groove small pulley (2) are provided with water leakage holes (8) at corresponding positions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221004594.XU CN217108107U (en) | 2022-04-28 | 2022-04-28 | Spinning cone pulley assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221004594.XU CN217108107U (en) | 2022-04-28 | 2022-04-28 | Spinning cone pulley assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217108107U true CN217108107U (en) | 2022-08-02 |
Family
ID=82583961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221004594.XU Active CN217108107U (en) | 2022-04-28 | 2022-04-28 | Spinning cone pulley assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217108107U (en) |
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2022
- 2022-04-28 CN CN202221004594.XU patent/CN217108107U/en active Active
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