CN212709721U

CN212709721U - Thrust wheel for harvester and casting mold thereof

Info

Publication number: CN212709721U
Application number: CN202021382866.0U
Authority: CN
Inventors: 王明; 邹志威
Original assignee: Jiashan North Machinery Co ltd
Current assignee: Jiashan North Machinery Co ltd
Priority date: 2020-07-14
Filing date: 2020-07-14
Publication date: 2021-03-16
Anticipated expiration: 2030-07-14

Abstract

The utility model discloses a thrust wheel for harvester and casting mould thereof, its technical scheme main points are including the shaft, set up respectively in the outer rim plate and the interior rim plate of shaft both sides, the outer rim plate one side of shaft is equipped with outer end cover, the central authorities of outer end cover are equipped with the screw hole, shaft, outer rim plate, interior rim plate and screw hole are coaxial setting, interior rim plate, shaft, outer rim plate and outer end cover set up to the integrated into one piece structure. The utility model discloses an integrated into one piece's structure reinforcing, stability is good, and it is simple to make, and reduction in production cost is fit for mass production.

Description

Thrust wheel for harvester and casting mold thereof

Technical Field

The utility model relates to the technical field of agricultural machinery, the concrete field is a thrust wheel for harvester and casting mould thereof.

Background

The thrust wheel is used as an important chassis part of the crawler machine, and mainly has the function of bearing structural parts, namely the thrust wheel is used for supporting the gravity of the crawler machine and rolls on a crawler track link or a crawler track guide plate to enable the crawler track to advance along the wheel. Therefore, the crawler belt is used for clamping the crawler belt, preventing the crawler belt from transversely sliding and derailing, and driving the crawler belt to laterally slide on the ground when steering. The thrust wheel works in muddy water sometimes and bears large impact load, so that the thrust wheel is required to be reliable in sealing and small in rim abrasion resistance and rolling resistance.

The thrust wheel structure mode in the existing market is formed by combination welding, and can break or leak oil and the like under the condition of increasing the axial force, so that the thrust wheel structure fails, and in addition, the welding mark is raised on the surface of a product and is connected with a section along a mark, so that the integral appearance of the product is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve current problem, provide a thrust wheel and casting mould for harvester, through integrated into one piece's structure reinforcing, stability is good, makes simply, reduction in production cost is fit for mass production.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a thrust wheel for harvester, includes the shaft, sets up respectively in outer rim plate and the interior rim plate of shaft both sides, outer rim plate one side of shaft is equipped with outer end cover, the central authorities of outer end cover are equipped with the screw hole, shaft, outer rim plate, interior rim plate and screw hole are coaxial setting, interior rim plate, shaft, outer rim plate and outer end cover set up to the integrated into one piece structure.

The utility model discloses further set up to, interior rim plate and foreign steamer dish all include that one end is connected in the wheel body of shaft, is connected in the transition area that the slope of the wheel body other end set up and is connected in the rim in transition area.

The utility model discloses further set up to, the shaft is located the lateral surface of interior rim plate one end and is equipped with first annular groove.

The utility model discloses further set up to, the shaft is located the interior terminal surface of inner wheel dish one side and is equipped with arc chamfer, second annular groove and spring retainer groove side by side.

The utility model discloses further set up to, the outside of outer end cover is equipped with annular convex block around the screw hole, annular convex block and outer end cover be equipped with outer chamfer within a definite time.

The utility model discloses further set up to, the inboard of outer end cover is equipped with interior chamfer with the junction of shaft.

The utility model discloses further set up to, the diameter and the wall thickness homogeneous phase of interior rim plate and outer rim plate.

The utility model provides a casting mould of thrust wheel for the shaping casting of thrust wheel, includes the sand box and sets up in the setting element of sand box both sides, the sand box is including last box and the lower box that the cooperation set up, it is equipped with sprue, the runner of intercommunication sprue, the rising head of intercommunication runner and the first die cavity of intercommunication rising head to go up the box, the box is equipped with the runner seat of cooperation sprue, the rising head seat of cooperation rising head and the second die cavity of the first die cavity of cooperation down.

The utility model discloses further set up to, first die cavity includes two sets of outer rim plate cavitys that set up side by side, arbitrary outer rim plate cavity communicate in the rising head through the ingate.

The utility model discloses further set up to, the second die cavity is arbitrary including the cooperation the loam core head cavity of rim plate cavity in the interior rim plate cavity of outer rim plate cavity and the cooperation.

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

the utility model discloses a thrust wheel forms through integrated into one piece's mode casting, has improved thrust wheel intensity and holistic stability, is favorable to prolonging the life of thrust wheel.

The utility model discloses a coaxial setting of shaft, outer rim plate, interior rim plate and screw hole and the symmetry of rim plate set up the structure, have guaranteed the equilibrium of thrust wheel, are favorable to improving the belt pulley life-span, and the product percent of pass is high.

The utility model discloses the first annular groove and the second annular groove that set up prevent the oil leak problem, have improved the leakproofness of thrust wheel. The spring retainer groove is used for placing the retainer ring, so that the bearing and the shaft are prevented from falling off, and the transverse movement of the fixed shaft or the bearing is realized to achieve the working condition.

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 mould simple structure, the sand mould cooperation that goes up the box and descend the box is perfect, and the belt pulley qualification rate of making is high, once only can cast out 4 thrust wheels, 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 a schematic three-dimensional structure diagram of the thrust wheel of the utility model;

FIG. 2: is a schematic side sectional structure diagram of the thrust wheel of the utility model;

FIG. 3: is a schematic diagram of the upper box structure of the die of the utility model;

FIG. 4: is a structural schematic diagram of a lower box body of the die of the utility model;

in the figure: 1. a wheel axle; 2. an outer wheel disc; 3. an inner wheel disc; 4. an outer end cover; 5. a threaded hole; 6. a wheel body; 7. a transition zone; 8. a rim; 9. a first annular groove; 10. arc chamfering; 11. a second annular groove; 12. a spring retainer groove; 13. an annular projection; 14. chamfering the outer part; 15. inner chamfering; 16. an upper box body; 17. a lower box body; 18. a sprue; 19. a side gate; 20. a riser; 21. an outer wheel disc cavity; 22. a sprue seat; 23. a riser seat; 24. an inner wheel disc cavity; 25. an inner gate; 26. a loam core head cavity; 27. a positioning member.

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 2, the present invention provides a technical solution: the utility model provides a thrust wheel for harvester, includes shaft 1, sets up respectively in the foreign steamer dish 2 and the interior rim plate 3 of 1 both sides of shaft, 2 one sides of foreign steamer dish of shaft 1 are equipped with outer end cover 4, the central authorities of outer end cover 4 are equipped with the screw hole 5 that is used for connecting other parts, shaft 1, foreign steamer dish 2, interior rim plate 3 and screw hole 5 are coaxial setting, interior rim plate 3, shaft 1, outer rim plate 2 and outer end cover 4 set up to the integrated into one piece structure.

The inner wheel disc 3 and the outer wheel disc 2 respectively comprise a wheel body 6 with one end connected to the wheel shaft 1, a transition belt 7 connected to the other end of the wheel body 6 in an inclined mode and a rim 8 connected to the transition belt 7.

The outer side surface of the wheel shaft 1 at one end of the inner wheel disc 3 is provided with a first annular groove 9.

The inner end face of the wheel shaft 1, which is positioned on one side of the inner wheel disc 3, is provided with an arc-shaped chamfer 10, a second annular groove 11 and a spring retainer groove 12 in parallel.

An annular convex block 13 is arranged on the outer side of the outer end cover 4 around the threaded hole 5, and an outer chamfer 14 is arranged between the annular convex block 13 and the outer end cover 4.

And an inner chamfer 15 is arranged at the joint of the inner side of the outer end cover 4 and the wheel shaft 1.

The inner wheel disc 3 and the outer wheel disc 2 have the same diameter and wall thickness.

The utility model discloses in, the overall structure of thrust wheel is "H" shape structure, and interior directness, the external diameter and the wall thickness homogeneous phase of interior wheel body 6 and foreign steamer body 6 are 7~8mm, and the external diameter is 175mm, and the outside all is equipped with 2 mm's chamfer. A first annular groove 9 of 6.5mm and a second annular groove 11 of 1.7mm form a double sealing effect. The fine teeth arranged in the center of the outer end cover 4 are communicated with the threaded holes 5 to be used for connecting parts of other harvesters, and the annular convex blocks 13 can be better matched with the connecting parts to achieve better matching connection.

Referring to fig. 3 to 4, a casting mold of a thrust wheel is used for molding and casting the thrust wheel, and includes a sand box and a positioning member 27 disposed on two sides of the sand box, where the sand box includes an upper box 16 and a lower box 17 disposed in a matching manner, the upper box 16 is provided with a sprue 18, a runner 19 communicating with the sprue 18, a riser 20 communicating with the runner 19, and a first cavity communicating with the riser 20, and the lower box 17 is provided with a sprue seat 22 cooperating with the sprue 18, a riser seat cooperating with the riser 20, and a second cavity cooperating with the first cavity.

The first cavity comprises two groups of outer wheel disc cavities 21 which are arranged in parallel, and any one of the outer wheel disc cavities 21 is communicated with the riser 20 through an inner sprue 25.

The second cavity comprises an inner wheel disc cavity 24 matched with any one of the outer wheel disc cavities 21 and a loam core head cavity 26 matched with the inner wheel disc cavity 24.

The utility model discloses in, earlier aim at the setting element 27 on the stake body with the setting element 27 of box 17 both sides down earlier, then will go up the case and fix the upper end at box 17 down along setting element 27 again, aim at the sprue 18 of box 16 with liquid casting material and pour into, liquid casting material passes through sprue 18 and gets into runner 19, and rethread runner 19 gets into in the rising head 20, flows into the die cavity through the ingate 25 in to be full of two die cavities, thereby reached the casting operation.

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

1. A thrust wheel for a harvester, characterized by: including shaft (1), set up respectively in outer rim plate (2) and interior rim plate (3) of shaft (1) both sides, the outer rim plate (2) one side of shaft (1) is equipped with outer end cover (4), the central authorities of outer end cover (4) are equipped with screw hole (5), shaft (1), outer rim plate (2), interior rim plate (3) and screw hole (5) are coaxial setting, interior rim plate (3), shaft (1), outer rim plate (2) and outer end cover (4) set up to the integrated into one piece structure.

2. A bogie wheel for a harvester according to claim 1, wherein: the inner wheel disc (3) and the outer wheel disc (2) respectively comprise a wheel body (6) with one end connected to the wheel shaft (1), a transition belt (7) connected to the other end of the wheel body (6) in an inclined mode and a wheel rim (8) connected to the transition belt (7).

3. A bogie wheel for a harvester according to claim 1, wherein: the outer end face of the wheel shaft (1) on one side of the inner wheel disc (3) is provided with a first annular groove (9).

4. A bogie wheel for a harvester according to claim 1, wherein: the inner end side of the wheel shaft (1) at one end of the inner wheel disc (3) is provided with an arc chamfer (10), a second annular groove (11) and a spring retainer groove (12) in parallel.

5. A bogie wheel for a harvester according to claim 1, wherein: the outer side of the outer end cover (4) is provided with an annular convex block (13) around the threaded hole (5), and an outer chamfer (14) is arranged between the annular convex block (13) and the outer end cover (4).

6. A bogie wheel for a harvester according to claim 1, wherein: an inner chamfer (15) is arranged at the joint of the inner side of the outer end cover (4) and the wheel shaft (1).

7. A bogie wheel for a harvester according to claim 1, wherein: the diameter and the wall thickness of the inner wheel disc (3) and the outer wheel disc (2) are the same.

8. A casting mold of a thrust wheel, which is used for molding and casting of the thrust wheel according to any one of claims 1 to 7, characterized in that: including the sand box with set up in setting element (27) of sand box both sides, the sand box is including last box (16) and lower box (17) that the cooperation set up, go up box (16) and be equipped with sprue (18), runner (19) of intercommunication sprue (18), riser (20) of intercommunication runner (19) and the first die cavity of intercommunication riser (20), box (17) are equipped with down runner seat (22) of cooperation sprue (18), riser seat (23) of cooperation riser (20) and the second die cavity of the first die cavity of cooperation.

9. The casting mold for a thrust wheel according to claim 8, wherein: the first cavity comprises two groups of outer wheel disc cavities (21) which are arranged in parallel, and any one of the outer wheel disc cavities (21) is communicated with the riser (20) through an inner sprue (25).

10. The casting mold for a thrust wheel according to claim 9, wherein: the second cavity comprises an inner wheel disc cavity (24) matched with any outer wheel disc cavity (21) and a loam core head cavity (26) matched with any inner wheel disc cavity (24).