CN216447403U - Intermediate shaft fixing structure of high-horsepower tractor gearbox - Google Patents

Abstract

The utility model discloses a high-horsepower tractor gearbox intermediate shaft fixing structure which comprises a main shaft, wherein a strip-shaped hole is formed in the main shaft, a rotating shaft is rotationally connected in the strip-shaped hole, one end, close to the side wall of the main shaft, of the rotating shaft is fixedly connected with a bearing, the bearing is in a conical shape, two threaded holes are formed in the side wall of the main shaft, the inner walls of the two threaded holes are fixedly connected with a first spring, one end, far away from the inner wall of the threaded hole, of the first spring is fixedly connected with a damping plate, the inner walls of the two threaded holes are in threaded connection with two stud bolts, and the side walls of the two stud bolts are in common threaded connection with a locking plate. According to the utility model, the diameter of the stud bolt is increased, so that the strength of the stud bolt is improved, and meanwhile, the two stud bolts are connected through the locking plate, so that the bolt in the prior art is not provided with an anti-falling binding hole, and therefore, the binding of iron wires is omitted, so that the bearing can be effectively compressed, and the service life of the gearbox is ensured.

Description

Intermediate shaft fixing structure of high-horsepower tractor gearbox

Technical Field

The utility model relates to the technical field of gearboxes, in particular to a fixing structure for an intermediate shaft of a gearbox of a high-horsepower tractor.

Background

The speed changing box is a device for changing the speed ratio and the moving direction, is used on automobiles, tractors, ships, machine tools and various machines, and is used for changing the torque, the rotating speed and the moving direction transmitted from a driving shaft to a driven shaft according to different working conditions.

At present, after the assembly of high horsepower tractor gearbox is accomplished, in order to avoid the gearbox in the jackshaft bearing damage, need compress tightly jackshaft bearing through the bolt fastening clamp plate, but because the bearing is conical bearing, lead to its rotation process axial force than great, long-term high-speed operation leads to bolt intensity to appear the fracture inadequately easily, thereby cause the bearing to damage, and the bolt diameter of using at present is too little, bolt itself still has anti-drop strapped hole simultaneously, consequently, bolt intensity has been reduced once more, thereby lead to the bolt fracture more easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a fixing structure for a middle shaft of a gearbox of a high-horsepower tractor.

In order to achieve the purpose, the utility model adopts the following technical scheme:

high horsepower tractor gearbox jackshaft fixed knot constructs, including the main shaft, the bar hole has been seted up in the main shaft, bar downthehole rotation is connected with the pivot, the one end fixedly connected with bearing that the pivot is close to the main shaft lateral wall, the bearing is the toper form, two screw holes have been seted up to the main shaft lateral wall, two the first spring of the equal fixedly connected with of screw hole inner wall, the one end fixedly connected with shock attenuation board of screw hole inner wall, two are kept away from to first spring screw hole inner wall threaded connection has two stud, two the common threaded connection of stud lateral wall has the locking plate, two a plurality of draw-in grooves have all been seted up to the lateral wall that stud is located the screw hole, be equipped with on the main shaft and carry out the fixed establishment of fixing to two stud.

Preferably, fixed establishment is including seting up two recesses at the main shaft lateral wall, two recess inner wall sliding connection has two T type poles, two the one end that T type pole is close to stud runs through the main shaft lateral wall and extends to two threaded holes respectively, two T type pole lateral wall and the laminating of draw-in groove inner wall.

Preferably, stud's lateral wall fixedly connected with connecting rod is kept away from to T type pole, the one end that T type pole was kept away from to the connecting rod runs through the main shaft lateral wall and extends to its outside, connecting rod lateral wall cover is equipped with the second spring, second spring both ends respectively with T type pole lateral wall and recess inner wall fixed connection.

Preferably, one end of the connecting rod, which is far away from the T-shaped rod, is fixedly connected with a pull rod.

Preferably, the stud has a diameter of M10 and the stud is of the type GBT 899.

Preferably, the shock attenuation board adopts polymer damping material to make, the shock attenuation board lateral wall is laminated with stud one end.

Preferably, the side wall of the pull rod is sleeved with a rubber pad, and the side wall of the rubber pad is provided with anti-skid grains.

The utility model has the following beneficial effects:

1. through setting up stud and locking plate, increase stud's diameter, and then improve its intensity, connect through the locking plate between two studs simultaneously, and then offer anti-drop strapping hole among the cancellation prior art on the bolt to cancellation iron wire ligature makes can effectually compress tightly the bearing, ensures the life of gearbox.

2. Through setting up draw-in groove and fixed establishment, when stud and threaded hole inner wall cooperate completely, loosen the pull rod this moment, and then the normal position is got back to T type pole under the spring action of second spring for T type pole inserts rather than the complex draw-in groove in, and then fixes stud's position, avoids the main shaft stud to appear not hard up when high-speed rotating.

Drawings

Fig. 1 is a schematic structural view of a middle shaft fixing structure of a gearbox of a high-horsepower tractor according to the present invention;

fig. 2 is an enlarged schematic view of a structure at a position a in a fixed structure of a middle shaft of a gearbox of a high-horsepower tractor according to the present invention.

In the figure: 1 main shaft, 2 bar holes, 3 pivot, 4 bearings, 5 screw holes, 6 stud, 7 locking plates, 8 shock attenuation boards, 9 first springs, 10 draw-in grooves, 11 recesses, 12T type pole, 13 connecting rods, 14 second springs, 15 pull rods.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-2, high horsepower tractor gearbox jackshaft fixed knot constructs, including main shaft 1, strip hole 2 has been seted up in main shaft 1, the internal rotation in strip hole 2 is connected with pivot 3, pivot 3 is close to the one end fixedly connected with bearing 4 of 1 lateral wall of main shaft, bearing 4 is the toper form, two screw holes 5 have been seted up to 1 lateral wall of main shaft, the equal fixedly connected with first spring 9 of two screw hole 5 inner walls, the one end fixedly connected with shock attenuation board 8 of 5 inner walls of screw hole is kept away from to first spring 9, two 5 inner wall threaded connections of screw hole have two stud 6, the common threaded connection of two stud 6 lateral walls has locking plate 7, a plurality of draw-in grooves 10 have all been seted up to the lateral wall that two stud 6 are located screw hole 5, be equipped with the fixed establishment that fixes two stud 6 on main shaft 1.

The fixing mechanism comprises two grooves 11 formed in the side wall of the main shaft 1, the inner walls of the two grooves 11 are connected with two T-shaped rods 12 in a sliding mode, one ends, close to the stud bolts 6, of the two T-shaped rods 12 penetrate through the side wall of the main shaft 1 and extend into the two threaded holes 5 respectively, and the side walls of the two T-shaped rods 12 are attached to the inner wall of the clamping groove 10.

Further, when stud 6 and 5 inner walls of screw hole cooperate completely, T type pole 12 inserts rather than complex draw-in groove 10 this moment, and then fixes stud 6's position, avoids stud 6 to appear not hard up when main shaft 1 rotates at high speed.

The lateral wall fixedly connected with connecting rod 13 that stud 6 was kept away from to T type pole 12, and the one end that T type pole 12 was kept away from to connecting rod 13 runs through main shaft 1 lateral wall and extends to its outside, and connecting rod 13 lateral wall cover is equipped with second spring 14, and second spring 14 both ends respectively with T type pole 12 lateral wall and recess 11 inner wall fixed connection.

One end of the connecting rod 13, which is far away from the T-shaped rod 12, is fixedly connected with a pull rod 15, a rubber pad is sleeved on the side wall of the pull rod 15, and anti-skid grains are formed in the side wall of the rubber pad.

The stud 6 has a diameter of M10, the stud 6 has a model of GBT899, and the stud 6 has increased strength by increasing the diameter of the stud 6.

The shock attenuation board 8 adopts polymer damping material to make, and the 8 lateral walls of shock attenuation board are laminated with 6 one end of stud, and the vibrations that stud 6 received when can rotating main shaft 1 cushion to avoid stud 6 fracture, prolong its life.

According to the utility model, two pull rods 15 are pulled in the direction away from the side wall of the main shaft 1, so that two T-shaped rods 12 are away from two threaded holes 5, then two stud bolts 6 are respectively in threaded connection with the inner walls of the two threaded holes 5, and a locking plate 7 is in common threaded connection between the side walls of the two stud bolts 6 away from the threaded holes 5, so that the stability of the two stud bolts 6 after installation is ensured, the bearing 4 is well protected, meanwhile, the strength of the two stud bolts 6 is increased, and the fracture of the two stud bolts 6 is avoided;

when the two stud bolts 6 enter the threaded holes 5, the two stud bolts 6 respectively extrude the two damping plates 8, and the damping plates 8 compress the first springs 9, so that when the stud bolts 6 are subjected to vibration in the rotation process of the main shaft 1, the damping plates 8 and the first springs 9 can buffer the vibration, the stud bolts 6 are prevented from being broken, and the service life of the stud bolts is prolonged;

after two stud 6 installations, loosen two pull rods 15 this moment, and then two T type poles 12 get back to the normal position under the spring action of two second springs 14 for two T type poles 12 insert rather than the complex draw-in groove 10 in, and then fix two stud 6's position, avoid main shaft 1 stud 6 to appear not hard up when high-speed rotating.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims (7)

1. A high horsepower tractor gearbox jackshaft fixed knot constructs, including main shaft (1), its characterized in that, set up bar hole (2) in main shaft (1), bar hole (2) internal rotation is connected with pivot (3), the one end fixedly connected with bearing (4) that pivot (3) are close to main shaft (1) lateral wall, bearing (4) are the toper form, two screw holes (5) have been seted up to main shaft (1) lateral wall, two screw hole (5) inner wall all fixedly connected with first spring (9), the one end fixedly connected with damper plate (8) of screw hole (5) inner wall is kept away from in first spring (9), two screw hole (5) inner wall threaded connection has two stud (6), two stud (6) lateral wall common threaded connection has locking plate (7), two a plurality of draw-in grooves (10) have all been seted up to the lateral wall that stud (6) are located screw hole (5), and a fixing mechanism for fixing the two stud bolts (6) is arranged on the main shaft (1).

2. The intermediate shaft fixing structure of the gearbox of the high-horsepower tractor according to claim 1, wherein the fixing mechanism comprises two grooves (11) formed in the side wall of the main shaft (1), two T-shaped rods (12) are slidably connected to the inner walls of the two grooves (11), one ends of the two T-shaped rods (12) close to the stud bolts (6) penetrate through the side wall of the main shaft (1) and respectively extend into the two threaded holes (5), and the side walls of the two T-shaped rods (12) are attached to the inner walls of the clamping grooves (10).

3. The intermediate shaft fixing structure of the gearbox of the high-horsepower tractor according to claim 2, wherein a connecting rod (13) is fixedly connected to a side wall, away from the stud bolt (6), of the T-shaped rod (12), one end, away from the T-shaped rod (12), of the connecting rod (13) penetrates through a side wall of the main shaft (1) and extends to the outside of the main shaft, a second spring (14) is sleeved on the side wall of the connecting rod (13), and two ends of the second spring (14) are fixedly connected with the side wall of the T-shaped rod (12) and an inner wall of the groove (11) respectively.

4. The intermediate shaft fixing structure of the gearbox of the high-horsepower tractor according to claim 3, wherein a tie rod (15) is fixedly connected to an end of the connecting rod (13) remote from the T-shaped rod (12).

5. The high horsepower tractor gearbox countershaft fixing structure of claim 1, wherein the diameter of the stud bolt (6) is M10 and the type of the stud bolt (6) is GBT 899.

6. The intermediate shaft fixing structure of the gearbox of the high-horsepower tractor according to claim 1, wherein the shock absorption plate (8) is made of a high-polymer damping material, and the side wall of the shock absorption plate (8) is attached to one end of the stud bolt (6).

7. The intermediate shaft fixing structure of the gearbox of the high-horsepower tractor according to claim 4, wherein a rubber pad is sleeved on the side wall of the pull rod (15), and anti-skid threads are formed on the side wall of the rubber pad.

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