CN211315041U - Belt pulley capable of saving replacement cost - Google Patents

Abstract

The utility model relates to a can save belt pulley of replacement cost relates to the technical field of belt pulley, and it includes the belt pulley main part, and the belt pulley main part is located the outline on the outline outer wall including the interior outline that is the ring form setting and cover, is provided with the axis circumference setting of a plurality of intra-annular outlines on the interior outline and just with the spring catch mechanism of the inner wall joint of outline. The utility model discloses have the effect that can save the replacement cost.

Description

Belt pulley capable of saving replacement cost

Technical Field

The utility model belongs to the technical field of the technique of belt pulley and specifically relates to a can save replacement cost's belt pulley is related to.

Background

The belt pulley belongs to a hub part, generally has a relatively large size, and is mainly cast and forged in the manufacturing process. The belt pulley is mainly used for the occasions of transmitting power in a long distance, such as the output of small diesel engine power, agricultural vehicles, tractors, automobiles, mining machinery, machining equipment, textile machinery, packaging machinery, lathes, forging beds, the transmission of power of small horsepower motorcycles, the transmission of power of agricultural machinery, air compressors, speed reducers, generators, cotton ginning machines and the like.

In the prior art, a belt pulley disclosed in chinese patent No. CN205047781U includes a pulley body, a shaft hole is provided in the middle of the pulley body, a groove is provided on an outer cylindrical surface of the pulley body along an axial direction of the pulley, and the groove penetrates through the outer cylindrical surface in the axial direction.

The above prior art solutions have the following drawbacks: belt pulley integrated into one piece, and the belt pulley often takes place the friction with the belt when using to, most belt pulleys belong to high dust operational environment, lead to the tooth groove part of belt pulley to take place wearing and tearing very fast, phenomenon such as overheated, when belt pulley wearing and tearing too big or because overheated lead to the belt pulley to take place to burst and split will lead to whole belt pulley to scrap, just need change a brand-new belt pulley this moment, therefore the replacement cost is great, needs improve.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can save the belt pulley of replacement cost to the not enough of prior art existence.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a can save belt pulley of replacement cost, includes the belt pulley main part, the belt pulley main part is located the outline on the outline outer wall with the cover including the interior outline that is the ring form setting, be provided with the axis circumference setting of a plurality of intra-annular outlines on the interior outline and with the spring catch mechanism of the inner wall joint of outline.

By adopting the technical scheme, when the tooth-shaped groove of the belt pulley is seriously abraded and needs to be replaced, the clamping relation between each spring pin mechanism arranged on the inner contour and the inner wall of the outer contour is only needed to be released, then the outer contour is directly taken out of the inner contour, finally, a new outer contour is re-arranged on the inner contour, and the outer contour is clamped and fixed on the outer wall of the inner contour by utilizing the elastic pin mechanism, so that the outer contour and the inner contour can be fixed.

The present invention may be further configured in a preferred embodiment as: the spring pin mechanism comprises a spring and a bolt, wherein the spring and the bolt are installed in the installation grooves, two ends of the spring are respectively abutted against the bottom of the bolt and the bottom of the installation groove, a plurality of annular outer contours are arranged on the inner wall of the outer contour in the circumferential direction, and the inner diameter of each annular outer contour is equal to the outer diameter of the bolt so as to form a slot for inserting the bolt.

Through adopting above-mentioned technical scheme, can keep away from the bolt outside the ejecting mounting groove of one end of interior profile axis through the spring of installing in the mounting groove to make the bolt keep away from in the one end of interior profile can peg graft and set up the slot on the outline inner wall, thereby realize the joint fixed relation between spring catch mechanism and the outline.

The present invention may be further configured in a preferred embodiment as: the part that the spring was kept away from to each bolt and the bolt outer wall meets all rounds the angle setting.

Through adopting above-mentioned technical scheme, the chamfer that sets up on the bolt all has the effect of direction, is convenient for the bolt to peg graft into setting up in the slot of outline.

The present invention may be further configured in a preferred embodiment as: and when the bolt is jacked to a position far away from the axis of the inner profile by the spring, the through hole is positioned at the position of the waist-shaped hole far away from the axis of the inner profile.

Through adopting above-mentioned technical scheme, when the joint fixed relation between bolt and the outline needs to be relieved, only need wear to establish waist shape hole with the pole material and insert in the through-hole, then stir the bolt towards the direction that is close to interior outline axis can.

The present invention may be further configured in a preferred embodiment as: and a plurality of positioning holes which are respectively communicated with one end of each mounting groove close to the axis of the inner contour are also formed in one side surface of the inner contour, which is far away from the waist-shaped hole.

Through adopting above-mentioned technical scheme, after stirring the bolt to the position department that is close to interior profile axis, waist shape hole, perforating hole and locating hole communicate in proper order, at this moment, only need to peg graft into the pole material of perforating hole and peg graft into in the locating hole can reach stable with the bolt spacing in the recess is close to the position department of interior profile axis, the staff of being convenient for stirs other bolts.

The present invention may be further configured in a preferred embodiment as: the inner wall of the outer contour is provided with a plurality of positioning grooves, and the outer wall of the inner contour is provided with a plurality of positioning bulges which are respectively matched with the positioning grooves.

Through adopting above-mentioned technical scheme, can play the effect of control outline and interior profile location installation through constant head tank and location arch, each mounting groove of being convenient for aligns with each slot respectively.

The present invention may be further configured in a preferred embodiment as: and the parts of the positioning grooves, which are connected with the two side surfaces of the outer contour, are rounded, and the parts of the positioning bulges, which are connected with the two side surfaces of the inner contour, are rounded.

Through adopting above-mentioned technical scheme, set up in the fillet portion of constant head tank and outline handing-over position department and set up in the fillet portion of location arch and interior outline handing-over position department and all can play the effect of direction, the staff of being convenient for overlaps the outline box on interior outline when changing the outline.

The present invention may be further configured in a preferred embodiment as: the outer wall of the outer contour is provided with a plurality of first semicircular grooves, two ends of each first semicircular groove are respectively communicated with the left side surface and the right side surface of the outer contour, the inner contour is provided with a plurality of second semicircular grooves, two ends of each second semicircular groove are respectively communicated with the left side surface and the right side surface of the inner contour, the first semicircular grooves and the second semicircular grooves are in one-to-one correspondence in position quantity, the first semicircular grooves and the second semicircular grooves are matched to form mounting holes, and high-temperature-resistant elastic rubber columns are mounted in the mounting holes.

Through adopting above-mentioned technical scheme, for the convenience of the installation, generally adopt clearance fit between outline and the interior outline, lead to the whole easy emergence vibration when using of belt pulley after the combination is accomplished, utilize the high temperature resistant elastic rubber post of installing in the mounting hole that closes formation by first semicircular groove and second semicircular groove to play the effect of filling the clearance between outline and the interior outline for the connection between outline and the interior outline is more stable.

The present invention may be further configured in a preferred embodiment as: the heat dissipation structure is characterized in that a plurality of first inner grooves which are arranged in a circular shape and communicated with the left side surface and the right side surface of the inner contour are formed in the outer wall of the inner contour, a plurality of second inner grooves which are arranged in a circular shape and communicated with the left side surface and the right side surface of the outer contour are formed in the inner wall of the outer contour, the positions of the first inner grooves and the positions of the second inner grooves correspond to each other one by one, and the first inner grooves and the second inner grooves are matched to form heat dissipation holes.

Through adopting above-mentioned technical scheme, can play the ability that improves the belt pulley radiating effect through enclosing the louvre that closes formation by the first inner groovy that sets up on interior profile and the second inner groovy that sets up on the profile, effectively reduce the speed of scrapping of profile.

The present invention may be further configured in a preferred embodiment as: the outer wall of the outer contour is provided with a plurality of radiating grooves, two ends of each radiating groove are respectively communicated with the left side surface and the right side surface of the outer contour, and all parts of the radiating grooves connected with the outer wall of the outer contour are arranged in a rounded manner.

Through adopting above-mentioned technical scheme, can further improve the radiating efficiency of outline through the radiating groove, reduce the speed of scrapping of outline.

To sum up, the utility model discloses a following at least one useful technological effect:

when the tooth-shaped groove of the outer contour is abraded, a worker can only replace the outer contour of the belt pulley with the tooth-shaped groove and continue to keep the inner contour, so that the effect of saving cost is achieved;

when the outer contour is replaced, the inner contour does not need to be moved, so that the problem of repositioning or installing the inner contour does not exist when the outer contour is replaced, the outer contour is more convenient to replace, and the labor cost is effectively saved.

Drawings

FIG. 1 is a schematic structural view of the present solution;

FIG. 2 is a schematic cross-sectional view of the present solution along the inner contour axis;

FIG. 3 is a schematic diagram of the outer contour structure of the present solution;

FIG. 4 is a schematic view of the spring pin assembly of the present embodiment;

FIG. 5 is a cross-sectional view of the spring pin of the present embodiment taken along the radial line of the outer contour;

fig. 6 is a partially enlarged schematic view of a in fig. 2 according to the present embodiment.

Reference numerals: 1. an inner contour; 11. mounting grooves; 12. a waist-shaped hole; 13. positioning holes; 14. positioning the projection; 141. a second semi-circular slot; 15. a first inner groove; 2. an outer contour; 21. a toothed groove; 22. a heat sink; 23. a slot; 24. positioning a groove; 241. a first semicircular groove; 25. a second inner groove; 3. a spring pin mechanism; 31. a spring; 32. a bolt; 321. a through hole; 4. a high temperature resistant elastic rubber column; 5. mounting holes; 6. and (4) heat dissipation holes.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, a belt pulley capable of saving replacement cost disclosed by the present invention includes an inner profile 1 for fixing with an output shaft of a power output device and an outer profile 2 detachably fixed on an outer wall of the inner profile 1 for cooperating with a belt; wherein, be provided with the spring catch mechanism 3 that a plurality of intra-annular outline 1's axis circumference equidistance was arranged on interior outline 1, each spring catch mechanism 3 all cooperates with the inner wall joint of outline 2.

Referring to fig. 2 and 3, the outer contour 2 is arranged in a ring shape, a plurality of tooth-shaped grooves 21 are arranged on the outer contour 2 along the length direction of the axis of the outer contour 2 and circumferentially surround the axis of the outer contour 2, a plurality of slots 23 are arranged on the inner wall of the outer contour 2 at equal intervals in the circumferential direction of the axis of the outer contour 2 and are respectively in one-to-one correspondence with the number and the position of each spring pin mechanism 3 for respectively clamping and fixing each spring pin mechanism 3, and the axis of each slot 23 is coincided with the radial line of the outer contour 2; wherein, the outer wall of the outer contour 2 is provided with a plurality of heat dissipation grooves 22, the two ends of which are respectively communicated with the left side surface and the right side surface of the outer contour 2, and the parts of the heat dissipation grooves 22 connected with the outer wall of the outer contour 2 are all arranged in a rounding way.

Referring to fig. 4 and 5, a plurality of mounting grooves 11 are formed in the outer wall of the inner contour 1, the mounting grooves 11 are circumferentially arranged at equal intervals around the axis of the inner contour 1, the axis of each mounting groove 11 is overlapped with the radial line of the inner contour 1, the positions and the number of the mounting grooves 11 correspond to the positions and the number of the slots 23, respectively, and when the outer contour 2 is mounted on the inner contour 1, the slots 23 are respectively communicated with the mounting grooves 11; wherein, each spring catch mechanism 3 is installed respectively in each mounting groove 11, and each spring catch mechanism 3 all includes spring 31 and bolt 32 of placing in mounting groove 11, the equal fillet setting in the position that the one end that bolt 32 kept away from spring 31 meets with bolt 32 outer wall, the both ends of spring 31 set up with mounting groove 11 bottom and bolt 32 one end butt that is close to interior profile 1 axis respectively, when bolt 32 was ejecting towards the one end of keeping away from interior profile 1 axis by spring 31, the both ends of bolt 32 can be pegged graft respectively in slot 23 and mounting groove 11, thereby interior profile 1 and the stable connection between the outline 2.

As shown in fig. 5, a plurality of waist-shaped holes 12 are further provided on one side of the inner profile 1, wherein the waist-shaped holes 12 are circumferentially arranged on the axis of the inner profile 1 and have a length along the radial line direction of the inner profile 1, each waist-shaped hole 12 is respectively communicated with each mounting groove 11, a plurality of positioning holes 13 are further provided on the other side of the inner profile 1, wherein the positioning holes 13 are circumferentially arranged on the axis of the inner profile 1 and are respectively communicated with one end of each mounting groove 11, which is close to the circumferential line of the inner profile 1, one through hole 321 is provided at one end of each bolt 32, which is close to the axis of the inner profile 1, and the width of each waist-shaped hole and the inner diameter of each through hole; when the bolt 32 is pushed into the slot 23 by the spring 31, the through hole 321 is located at one end of the mounting groove 11 far from the axis of the inner profile 1 and is communicated with the kidney-shaped hole 12, and when the bolt 32 is pushed to one end near the axis of the inner profile 1, two ends of the through hole 321 are respectively communicated with the kidney-shaped hole 12 and the positioning hole 13.

As shown in fig. 2 and fig. 6, a plurality of positioning grooves 24 circumferentially arranged around the axis of the outer contour 2 are disposed on the inner wall of the outer contour 2, a plurality of positioning protrusions 14 respectively matched with the positioning grooves 24 are disposed on the outer wall of the inner contour 1, and when the outer contour 2 is tightly sleeved on the outer wall of the inner contour 1, the positioning protrusions 14 are respectively clamped in the positioning grooves 24; wherein, all the parts of the positioning grooves 24 connected with the two side surfaces of the outer contour 2 are rounded, and all the parts of the positioning bulges 14 connected with the two side surfaces of the inner contour 1 are rounded.

Wherein, the outer wall of the outer contour 2 is provided with a plurality of first semicircular grooves 241, the two ends of each first semicircular groove are respectively communicated with the left side surface and the right side surface of the outer contour 2 and are uniformly distributed in each positioning groove 24, the inner contour 1 is provided with a plurality of second semicircular grooves 141, the two ends of each second semicircular groove are respectively communicated with the left side surface and the right side surface of the inner contour 1 and are uniformly distributed on the outer wall of each positioning bulge 14, and the positions of the first semicircular grooves 241 and the second semicircular grooves 141 are in one-to-one correspondence; when the outer contour 2 is tightly sleeved on the outer wall of the inner contour 1, each first semicircular groove 241 is matched with each second semicircular groove 141 to form a mounting hole 5, and a high-temperature-resistant elastic rubber column 4 with an actual outer diameter slightly larger than the inner diameter of the mounting hole 5 is mounted in each mounting hole 5.

The outer wall of the inner contour 1 is provided with a plurality of first inner grooves 15 which are circularly arranged and communicated with the left side surface and the right side surface of the inner contour 1, the inner wall of the outer contour 2 is provided with a plurality of second inner grooves 25 which are circularly arranged and communicated with the left side surface and the right side surface of the outer contour 2, and the positions of the first inner grooves 15 and the second inner grooves 25 are in one-to-one correspondence; when the outer contour 2 is sleeved on the outer wall of the inner contour 1, the first inner grooves 15 and the second inner grooves 25 are matched to form the heat dissipation holes 6 which are arranged in a hollowed-out manner.

The implementation principle of the embodiment is as follows:

when the clamping relation between the spring pin mechanism 3 and the outer contour 2 needs to be removed, firstly, a rod is inserted into the through hole 321 through the waist-shaped hole 12, then the rod is shifted towards the direction close to the axis of the inner contour 1, so that the bolt 32 can be driven to the position close to the axis of the inner contour 1, finally, the rod penetrates through the through hole 321 and is inserted into the positioning hole 13, the effect of temporarily limiting the bolt 32 can be achieved, the steps are repeated, and then each bolt 32 can be separated from the outer contour 2, so that the outer contour 2 can be conveniently taken down;

when a new outer contour 2 needs to be replaced, the outer contour 2 is sleeved on the outer wall of the inner contour 1, then all the rod materials are drawn out, all the springs 31 are reset to respectively jack all the bolts 32 into the outer contour 2, and finally all the high-temperature-resistant elastic rubber columns 4 are respectively plugged into all the mounting holes 5 formed by the enclosing of the first semicircular groove 241 and the second semicircular groove 141.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (10)

1. The utility model provides a can save belt pulley of replacement cost, includes the belt pulley main part, its characterized in that: the belt pulley main body comprises an inner contour (1) and an outer contour (2), wherein the inner contour (1) is arranged in a circular ring shape, the outer wall of the inner contour (1) is sleeved with the outer contour (2), and a plurality of spring pin mechanisms (3) which are circumferentially arranged on the inner contour (1) and clamped with the inner wall of the outer contour (2) are arranged on the inner contour (1).

2. A pulley that saves replacement costs according to claim 1, wherein: be provided with a plurality of mounting grooves (11) on the outer wall of interior profile (1), each spring catch mechanism (3) all including installing spring (31) and bolt (32) in mounting groove (11), the both ends of spring (31) respectively with bolt (32) and mounting groove (11) bottom butt, set up axis circumference that a plurality of rings outline (2) were arranged and the internal diameter equals with the external diameter of bolt (32) and sets up slot (23) in order to supply each bolt (32) to peg graft on the inner wall of outline (2).

3. A pulley that saves replacement costs according to claim 2, wherein: the part of one end of each bolt (32) far away from the spring (31) and connected with the outer wall of the bolt (32) is rounded.

4. A pulley that saves replacement costs according to claim 2, wherein: a plurality of waist-shaped holes (12) respectively communicated with the mounting grooves (11) are formed in one side surface of the inner profile (1), through holes (321) communicated with the waist-shaped holes (12) are formed in the plug pins (32), and when the plug pins (32) are pushed to positions far away from the axis of the inner profile (1) by the springs (31), the through holes (321) are located on the positions, far away from the axis of the inner profile (1), of the waist-shaped holes (12).

5. A pulley that saves replacement costs according to claim 4, wherein: and a plurality of positioning holes (13) which are respectively communicated with one ends of the mounting grooves (11) close to the axis of the inner contour (1) are also formed in one side surface of the inner contour (1) far away from the waist-shaped hole (12).

6. A pulley that saves replacement costs according to claim 1, wherein: the inner wall of the outer contour (2) is provided with a plurality of positioning grooves (24), and the outer wall of the inner contour (1) is provided with a plurality of positioning protrusions (14) which are respectively matched with the positioning grooves (24).

7. A pulley that saves replacement costs according to claim 6, wherein: the parts of the positioning grooves (24) connected with the two side surfaces of the outer contour (2) are rounded, and the parts of the positioning protrusions (14) connected with the two side surfaces of the inner contour (1) are rounded.

8. A pulley that saves replacement costs according to claim 1, wherein: the outer wall of the outer contour (2) is provided with a plurality of first semicircular grooves (241) of which two ends are respectively communicated with the left side surface and the right side surface of the outer contour (2), the inner contour (1) is provided with a plurality of second semicircular grooves (141) of which two ends are respectively communicated with the left side surface and the right side surface of the inner contour (1), the positions of the first semicircular grooves (241) and the positions of the second semicircular grooves (141) are in one-to-one correspondence, the first semicircular grooves (241) and the second semicircular grooves (141) are matched to form mounting holes (5), and high-temperature-resistant elastic rubber columns (4) are installed in the mounting holes (5).

9. A pulley that saves replacement costs according to claim 1, wherein: be provided with on the outer wall of interior profile (1) a plurality of tracks and be circular form setting and with first inner groovy (15) of interior profile (1) left and right sides face intercommunication, be provided with a plurality of tracks on the inner wall of outline (2) and be circular form setting and with second inner groovy (25) of outline (2) left and right sides face intercommunication, each the position quantity one-to-one of first inner groovy (15) and second inner groovy (25), each first inner groovy (15) and second inner groovy (25) cooperation form louvre (6).

10. A pulley that saves replacement costs according to claim 1, wherein: the outer wall of the outer contour (2) is provided with a plurality of radiating grooves (22) with two ends respectively communicated with the left side surface and the right side surface of the outer contour (2), and all parts of the radiating grooves (22) connected with the outer wall of the outer contour (2) are arranged in a fillet mode.

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