CN212928711U - Novel belt pulley and casting mould thereof - Google Patents

Abstract

The utility model discloses a novel belt pulley and casting mould thereof, its technical scheme main points are including the belt pulley main part with coaxial the wheel seat that sets up in the belt pulley main part, the wheel seat includes primary shaft spare and the coaxial second shaft spare that sets up in primary shaft spare, the belt pulley main part includes the wheel body and connects the load coupling assembling of wheel body and primary shaft spare, the wheel body includes that the coaxial first wheel body that sets up side by side and diameter are greater than the second wheel body of first wheel body, the load coupling assembling is including setting up first connecting piece in the first wheel body, setting up the second connecting piece in the second wheel body and setting up the third connecting piece between first connecting piece and second connecting piece. The utility model discloses can not only use the belt of two different width to convey, can reduce the heat that produces between the belt moreover, prolong life.

Description

Novel belt pulley and casting mould thereof

Technical Field

The utility model relates to a belt pulley equipment field, concrete field be a novel belt pulley and casting mould thereof.

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 design with larger size is designed to be a casting method, the material is generally cast iron (with better casting performance), and the cast steel is rarely used (with poor casting performance); generally, the steel is small in size and can be designed to be forged, and the material is steel. The belt pulley is mainly used in the occasion of transmitting power at 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 some small horsepower motorcycles, the transmission of power of agricultural machinery, air compressors, speed reducers, generators, cotton gins and the like.

At present, the condition after the tradition improves generally adopts one set or several sets of general examination machine platforms to match the installation of different models and places, but driving motor then often adopts the examination machine of different models installation different specifications to solve with motor pulley, often need change motor pulley when changing the examination machine product, leads to inefficiency, and is very inconvenient. When the belt is used, as the contact surface between the belt pulley and the belt is large, a large amount of heat can be generated in the transmission process, so that the service life of the belt is influenced; at present, the die plate for the casting die of the belt pulley is used for manufacturing a cavity in a sand box, and then the cavity is manually placed from top to bottom, so that the operation is more complicated, the fixing is unstable, and the production efficiency of a cast part is seriously influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve current problem, provide a novel belt pulley and casting mould thereof, can not only use the belt of two different width to convey, can reduce the heat that produces between the belt moreover, prolonged life.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a novel belt pulley, includes belt pulley main part and the coaxial wheel seat that sets up in the belt pulley main part, the wheel seat includes primary shaft spare and the coaxial second shaft spare that sets up in primary shaft spare, the belt pulley main part includes the wheel body and connects the bearing coupling assembling of wheel body and primary shaft spare, the wheel body includes that the coaxial first wheel body that sets up side by side and diameter are greater than the second wheel body of first wheel body, bearing coupling assembling is including setting up first connecting piece in the first wheel body, setting up in the second connecting piece in the second wheel body and setting up the third connecting piece between first connecting piece and second connecting piece.

The utility model discloses further set up to, first connecting piece and second connecting piece all include the support frame, set up in the bellying of support frame lateral part and run through the logical groove of support frame and bellying, the support frame is including connecting in the first support body of first shaft and connecting in the second support body of wheel body, the cross-section of second support body is the trapezium structure, the junction of first support body and second support body is equipped with first arc chamfer.

The utility model discloses further set up to, the third connecting piece is connected and is equipped with the inclined plane in the lateral part of second wheel body, the inclined plane is equipped with second arc chamfer with second wheel body medial surface junction.

The utility model discloses further set up as, the opening part of first wheel body and second wheel body all is equipped with inside recess chamfer.

The utility model discloses further set up as, the lateral surface of first wheel body and second wheel body all is equipped with the grooved rail side by side.

The utility model discloses further set up to, the grooved rail of first wheel body is for 2 first isosceles trapezoid grooved rails that set up side by side, arbitrary two waist limit angles of first isosceles trapezoid grooved rail be 34, the grooved rail of second wheel body is for 3 second isosceles trapezoid grooved rails that set up side by side, two waist limit angles of second isosceles trapezoid grooved rail are greater than two waist limit angles of first isosceles trapezoid grooved rail.

A casting mold for a pulley belt: including the sand box with set up in the setting element of sand box both sides, the sand box is including all being equipped with upper shed's last box and lower box, the bottom surface of going up the box is equipped with the feeder head of feed end, intercommunication feed end and the first die cavity of intercommunication feeder head respectively up, the bottom surface of box is equipped with the riser seat of cooperation riser and the second die cavity of the first die cavity of cooperation respectively down.

The utility model discloses further set up to, the feed end is including setting up in the sprue of last box and the runner of cooperation sprue, the box is equipped with the runner seat of cooperation sprue down, it is equipped with the first ingate of intercommunication sprue to emit the seat.

The utility model discloses further set up to, the rising head is for setting up in two on the diagonal of box down, arbitrary the rising head all communicate in first die cavity through second ingate.

The utility model discloses further set up to, arbitrary the setting element including set up in the first location boss of last box, set up in the second location boss of box down and the location axle spare that runs through first location boss and second location boss, the lower extreme cooperation location axle spare of box is equipped with the stake body down.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a structure an organic whole is formed, has replaced the welding and has formed, and its intensity is higher when using, is difficult to produce the fracture to can not influence the production process, characteristics such as simple structure, reasonable. The structure is simple, the production and the manufacture are easy, and the method is suitable for mass production;

the utility model discloses in seted up a plurality of groove rails on two wheel body grooves of each of belt pulley, not only accelerate the radiating efficiency of belt pulley and belt when moving, keep the whole atress of belt pulley balanced moreover, be favorable to the equilibrium of multislot belt pulley atress, promote the life of belt pulley.

The utility model discloses a pattern plate uses the die cavity of a novel belt pulley, makes required sand box model, simple structure, convenient operation through mutually supporting of first die cavity and second die cavity.

The utility model discloses well sandbox passes through the setting element activity to be fixed in stake body upper end, and the design of stake body makes the overall structure of this mould more stable, and the location axle piece runs through the swing joint of two location lugs for it is more convenient to dismantle the installation.

The utility model discloses well mould simple structure, the sand mould cooperation that goes up in the box and the lower box is perfect, and the belt pulley qualification rate of making is high, is fit for large-scale production, and its application prospect is very wide consequently.

The utility model provides a liquid casting material can reduce the volume in liquid casting material flow through clearance from the process of sprue inflow die cavity to the volume that has the waste material on the foundry goods blank after the shaping has been reduced, effectively reduced the wasting of resources.

Drawings

FIG. 1: is an overall schematic diagram of the belt pulley in the utility model;

FIG. 2: is a schematic side sectional view of the belt pulley in the utility model;

FIG. 3: is a schematic front view of the belt pulley in the utility model;

FIG. 4: is a schematic view of the overlooking structure of the upper box body of the middle sand box of the utility model;

FIG. 5: is a schematic structural view of the bottom view of the lower box body of the middle sand box of the utility model;

FIG. 6: is a schematic diagram of the whole structure of the middle casting mould of the utility model;

in the figure: 1. a first shaft member; 2. a second shaft member; 3. a wheel body; 4. a first wheel body; 5. a second wheel body; 6. a first connecting member; 7. a second connecting member; 8. a third connecting member; 9. a boss member; 10. a through groove; 11. a first frame body; 12. a second frame body; 13. a first arc-shaped chamfer; 14. a bevel; 15. a second arc-shaped chamfer; 16. chamfering the groove; 17. a groove rail; 18. a rotating shaft clamping groove; 19. a sand box; 20. a stent body; 21. an upper box body; 22. a lower box body; 23. a riser; 24. a first cavity; 25. a riser seat; 26. a second cavity; 27. a sprue; 28. a side gate; 29. a sprue seat; 30. a first inner gate; 31. positioning the shaft member; 32. an air outlet needle; 33. a loam core head cavity; 34. a first positioning boss; 35. and a second positioning boss.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, the present invention provides a technical solution: the utility model provides a novel belt pulley, includes belt pulley main part and the wheel seat of coaxial setting in the belt pulley main part, the wheel seat includes primary shaft spare 1 and the coaxial second shaft spare 2 that sets up in primary shaft spare 1, the belt pulley main part includes wheel body 3 and the load coupling assembling of connecting wheel body 3 and primary shaft spare 1, wheel body 3 is greater than the second wheel body 5 of first wheel body 4 including the coaxial first wheel body 4 that sets up side by side and diameter, the load coupling assembling is including setting up first connecting piece 6 in first wheel body 4, setting up second connecting piece 7 in second wheel body 5 and setting up the third connecting piece 8 between first connecting piece 6 and second connecting piece 7.

The utility model discloses in, the belt pulley is through casting integrated into one piece by wheel body 3, load coupling assembling and wheel seat, sets the wheel body 3 to the first wheel body 4 and the second wheel body 5 that two diameters are different, can twine the belt of two different widths on first wheel body 4 and second wheel body 5 respectively like this to form the dispersion transmission of shaft.

The first connecting piece 6 and the second connecting piece 7 both comprise a support frame, a protruding piece 9 arranged on the side part of the support frame and a through groove 10 penetrating through the support frame and the protruding piece 9.

The support frame is including connecting in the first support body 11 of first shaft and connecting in the second support body 12 of wheel body (3), the cross-section of second support body 12 is trapezium structure, the junction of first support body 11 and second support body 12 is equipped with first arc chamfer 13.

The force bearing connecting components are uniformly distributed and wound around 4 parts between the wheel seat and the wheel body 3.

The utility model discloses in, load coupling assembling's quantity is four, and the equidistance makes adjacent load coupling assembling mutually perpendicular around the structure that the wheel seat set up, forms a cruciform structure, and the belt pulley is when the assembly belt carries out, and the pressure that receives when the belt pulley rotates is great, and load coupling assembling can transmit the power that the belt pulley received to the wheel seat, keeps the equilibrium of belt pulley atress, prevents that pressure is unbalanced to damage the belt pulley, promotes the life of belt pulley.

The third connecting piece 8 is connected to the side part of the second wheel body 5 and is provided with an inclined surface 14, and a second arc-shaped chamfer 15 is arranged at the joint of the inclined surface 14 and the inner side surface of the second wheel body 5.

The openings of the first wheel body 4 and the second wheel body 5 are both provided with inward groove chamfers 16.

The outer side surfaces of the first wheel body 4 and the second wheel body 5 are provided with groove rails 17 in parallel.

The groove rails of the first wheel bodies 4 are 2 first isosceles trapezoid groove rails arranged in parallel, the two waist-side angles of any first isosceles trapezoid groove rail are 34 degrees, the groove rails of the second wheel bodies 5 are 3 second isosceles trapezoid groove rails arranged in parallel, and the two waist-side angles of the second isosceles trapezoid groove rails are larger than the two waist-side angles of the first isosceles trapezoid groove rails.

The utility model discloses in, set up a plurality of groove rails 17 through the lateral surface at first wheel body 4 and second wheel body 5, the number of the groove rail of two wheel bodies is different, and the angle of first wheel body is 24, the angle of second wheel body is 38, make the area of contact of two wheel bodies and belt different, when making the belt can be on wheel body 3 steady operation, the contact surface of groove rail 17 with the belt has been reduced, the heat-sinking capability is improved, the heat that the friction produced has been reduced, reduce the damage to the belt, and service life is prolonged.

And a rotating shaft clamping groove 18 is formed in the inner side surface of the second shaft part 2.

The utility model discloses in, the pivot draw-in groove 18 that the inside of second shaft spare 2 set up is used for connecting the pivot that runs through the shaft, and the arch and the 18 grafting of pivot draw-in groove of pivot lateral wall, when the pivot rotates, and second shaft spare 2 rotates under the drive of the arch of pivot lateral wall and the 18 junctions of pivot draw-in groove, further drives the belt pulley and rotates.

Referring to fig. 4 to 6, a casting mold for a novel belt pulley comprises a sand box 19 and positioning members disposed at two sides of the sand box 19, wherein the sand box 19 comprises an upper box body 21 and a lower box body 22 both provided with an upper opening, a feeding end, a riser 23 communicated with the feeding end and a first cavity 24 communicated with the riser 23 are respectively disposed at the bottom surface of the upper box body 21, and a riser seat 25 matched with the riser 23 and a second cavity 26 matched with the first cavity 24 are respectively disposed at the bottom surface of the lower box body 22.

The utility model discloses in, rising head 23 forms two casting rising head 23 cavitys, and after the liquid casting material injected into, the casting rising head 23 cavity also was annotated with liquid casting material, and the liquid casting material here is for the shrink when supplementary foundry goods solidify to prevent the shrinkage cavity, shrinkage porosity and other defects and the part of designing, still have the function of exhaust or collection sediment simultaneously.

The feeding end comprises a sprue 27 arranged on the upper box body 21 and a runner 28 matched with the sprue 27, and the lower box body 22 is provided with a sprue seat 29 matched with the sprue 27.

The riser 23 is seated with a first ingate 30 communicating with the sprue 27.

The risers 23 are two risers arranged on the diagonal line of the lower box body, and any riser 23 is communicated with the first cavity 24 through a second ingate.

The utility model discloses in, liquid casting material gets into the runner 28 earlier through the sprue 27, rethread runner 28 flows into first ingate 30, because first ingate 30 is connected with rising head 23 cavity, so liquid casting material flows into the rising head 23 cavity earlier and flows into the die cavity at last, and be full of whole die cavity, thereby form the belt pulley, the mode through the transition drainage makes liquid casting material be full of the die cavity, supplement the die cavity through the second ingate, the quality of foundry goods is improved, the work load of follow-up cutting and polishing has been reduced.

The first cavity 24 and the second cavity 26 both include a wheel body cavity, an axle seat cavity arranged in the wheel body cavity, and a bearing shaft cavity connecting the wheel body cavity and the axle seat cavity.

The wheel body cavity of the first cavity 24 is provided with an air outlet needle 32.

The utility model discloses in, set up two gas outlet needles 32 respectively in last box 21 upper end, be favorable to the gaseous discharge of die cavity.

And a mud core head cavity 33 is arranged in the shaft seat cavity of the second cavity 26.

The utility model discloses in, the loam core head cavity is used for placing of core, utilizes former sand and bonding agent to formulate the core sand at the casting money and places in the cavity, and liquid casting material pours into the condensation after, clears it, can form the cavity on the foundry goods, has reduced follow-up drilling and has carried out the work load of repairing, has improved work efficiency.

Any one of the positioning members includes a first positioning boss 34 disposed on the upper case 21, a second positioning boss 35 disposed on the lower case 22, and a positioning shaft 31 penetrating through the first positioning boss 34 and the second positioning boss 35.

The utility model discloses in, the setting element that sets up through 19 both sides of sand box aligns sealedly for the die cavity of box 22 under the alignment that the die cavity of last box 21 can be more accurate, thereby forms a whole cavity of foundry goods, improves product quality, reduces the wasting of resources.

The lower end of the lower box body 22 is provided with a bracket body 20 in a matching way with the positioning shaft piece 31.

The utility model discloses in, the stake body 20 is including setting up in the base platform of 19 lower extremes of sand box, the quartering support frame of cooperation base platform and setting up the fixing base between arbitrary two support frames, the fixing base falls into three fixed block, can dismantle the last fixed block of being connected with arbitrary support frame lower extreme respectively, two fixed block lower extremes set up a lower fixed block, lower fixed block is used for placing fixedly, set up an installation component in the centre of fixed block down, like this, can erect and carry out fixed mounting on other equipment, thereby reach the height of adjustment stake body 20, also can improve stake body 20's steadiness.

The bottom surfaces of the upper box body 21 and the lower box body 22 are both made of iron plates.

The utility model discloses in, use the iron material to reduce the manufacturing cost of mould.

The utility model discloses in, earlier with the location axle piece 31 on the through-hole alignment stake body 20 on the box 22 both sides second location boss 35 down, lower box 22 can place the fixing base upper end at stake body 20 along location axle piece 31, then will go up the through-hole on the first location boss 34 of both sides of box 21 and also aim at the location axle piece 31 on the stake body 20 and go on, it fixes the upper end of the upper part body under along location axle piece 31 to go up box 21, aim at the sprue 27 of last box 21 with liquid casting material and pour into, liquid casting material gets into the runner 28 through sprue 27, in the cavity of leading liquid casting material to rising head 23 through first sprue 30, flow into the die cavity through the second sprue, and be full of two die cavities, thereby casting operation has been reached.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. A novel belt pulley is characterized in that: including belt pulley main part and the wheel seat of coaxial setting in the belt pulley main part, the wheel seat includes primary shaft spare (1) and coaxial second shaft spare (2) of setting in primary shaft spare (1), the belt pulley main part includes wheel body (3) and the bearing coupling assembling of connecting wheel body (3) and primary shaft spare (1), wheel body (3) are greater than second wheel body (5) of primary shaft spare (4) including coaxial first wheel body (4) that set up side by side and diameter, bearing coupling assembling is including setting up first connecting piece (6) in first wheel body (4), setting up second connecting piece (7) in second wheel body (5) and setting up third connecting piece (8) between first connecting piece (6) and second connecting piece (7).

2. A novel pulley as claimed in claim 1 wherein: first connecting piece (6) and second connecting piece (7) all include the support frame, set up in protruding piece (9) of support frame lateral part and run through logical groove (10) of support frame and protruding piece (9), the support frame is including connecting in first support body (11) of first shaft and connecting in second support body (12) of wheel body (3), the cross-section of second support body (12) is trapezium structure, the junction of first support body (11) and second support body (12) is equipped with first arc chamfer (13).

3. A novel pulley as claimed in claim 1 wherein: the third connecting piece (8) is connected to the side portion of the second wheel body (5) and is provided with an inclined surface (14), and a second arc-shaped chamfer (15) is arranged at the joint of the inclined surface (14) and the inner side surface of the second wheel body (5).

4. A novel pulley as claimed in claim 1 wherein: the openings of the first wheel body (4) and the second wheel body (5) are provided with inward groove chamfers (16).

5. A novel pulley as claimed in claim 1 wherein: the outer side surfaces of the first wheel body (4) and the second wheel body (5) are provided with groove rails (17) in parallel.

6. A new pulley according to claim 5, characterized in that: the groove rails of the first wheel body (4) are 2 first isosceles trapezoid groove rails arranged in parallel, the angle of two waist edges of any first isosceles trapezoid groove rail is 34 degrees, the groove rails of the second wheel body (5) are 3 second isosceles trapezoid groove rails arranged in parallel, and the angle of two waist edges of each second isosceles trapezoid groove rail is larger than that of the first isosceles trapezoid groove rail.

7. A casting mold for a pulley according to any one of claims 1 to 6, characterized in that: including sand box (19) and set up in the setting element of sand box (19) both sides, sand box (19) are including all being equipped with upper shed's last box (21) and lower box (22), the bottom surface of going up box (21) is equipped with feeder head (23) and the first die cavity (24) of intercommunication feeder head (23) of feed end, intercommunication feed end respectively up, the bottom surface of lower box (22) is equipped with second die cavity (26) of riser seat (25) and the first die cavity (24) of cooperation feeder head (23) respectively.

8. A casting mold for a new type of pulley according to claim 7, characterized in that: the feeding end comprises a sprue (27) arranged on the upper box body (21) and a runner (28) matched with the sprue (27), the lower box body (22) is provided with a sprue seat (29) matched with the sprue (27), and the riser seat (25) is provided with a first inner sprue (30) communicated with the sprue (27).

9. A casting mold for a new type of pulley according to claim 7, characterized in that: the riser (23) are arranged on two diagonal lines of the lower box body, and any riser (23) is communicated with the first cavity (24) through the second inner sprue.

10. A casting mold for a new type of pulley according to claim 7, characterized in that: the positioning piece comprises a first positioning boss (34) arranged on the upper box body (21), a second positioning boss (35) arranged on the lower box body (22) and a positioning shaft piece (31) penetrating through the first positioning boss (34) and the second positioning boss (35), and the lower end of the lower box body (22) is matched with the positioning shaft piece (31) and is provided with a support body (20).

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