Adjustable agricultural machine hub mounting device

Abstract

The utility model belongs to the technical field of agricultural machinery, and discloses an adjustable agricultural machinery hub mounting device which comprises a first transmission shaft, a self-adjusting assembly is fixedly connected to the first transmission shaft, the other end of the self-adjusting assembly is detachably connected with a shaft sleeve assembly, a conical surface is arranged on the outer surface of the shaft sleeve assembly, and a hub is connected to the conical surface in an abutting mode. The shaft sleeve assembly is detachably connected with the hub; the hub locking device is simple in overall structure, deviation can be automatically adjusted in the advancing process after a hub is locked and installed, real-time detection can be achieved, and the using effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of agricultural machinery technology, and specifically relates to an adjustable agricultural machinery wheel hub mounting device. BACKGROUND

[0002] In the modern agricultural mechanization process, as an important agricultural power machinery, the stability of the performance and the flexibility of the operation of the tractor are crucial to improving the agricultural production efficiency. The tractor wheel hub, as a key component of the tractor in contact with the ground, not only bears the weight of the whole machine, but also affects the stability of the tractor in driving, the flexibility of the steering and the ability to pass through complex terrain.

[0003] When the half shaft of the tractor is connected with the wheel hub, a taper sleeve is usually used for locking. A tapered hole coaxial with the wheel hub is arranged at the center of the wheel hub, the wheel hub is sleeved on the half shaft, two half taper sleeves are inserted into the gap between the wheel hub and the half shaft, the gap between the wheel hub and the half shaft is smaller on the side of the smaller diameter of the tapered hole, when the taper sleeve moves towards the side of the smaller radius of the tapered hole, the gap between the half taper sleeve and the wheel hub (half shaft) gradually becomes smaller, until the gap disappears, the taper sleeve, the wheel hub and the half shaft are tightly pressed against each other, the friction between the half shaft and the taper sleeve and the taper sleeve and the wheel hub realizes the locking of the wheel hub, a connecting hole is formed on the taper sleeve, a locking bolt passing through the connecting hole and threadedly connected with the wheel hub is used to fix the taper sleeve on the wheel hub, so that the relative position of the taper sleeve and the wheel hub is fixed, which can ensure reliable locking of the wheel hub.

[0004] A Chinese patent with the application number CN201721354679.X discloses a new wheel hub locking mechanism, the technical solution of which is that the half shaft, the wheel hub with a tapered hole, the two half taper sleeves clamping the half shaft and inserted into the tapered hole, and the locking bolt are included, the taper of the outer wall of the half taper sleeve is the same as that of the side wall of the tapered hole and is parallel, the larger-diameter end of the outer wall of the half taper sleeve is provided with a half-ring flange, the flange is provided with a connecting hole, the locking bolt is threadedly connected with the wheel hub through the connecting hole, the axis of the locking bolt is parallel to the axis of the half shaft, and the annular pressure plate is further included, the pressure plate is sleeved on the half shaft and located on the side away from the wheel hub of the half taper sleeve, the pressure plate is provided with a pressure plate through hole, the locking bolt passes through the pressure plate through hole and presses the pressure plate on the two half taper sleeves at the same time, so that the effect of avoiding local cracking of the half taper sleeve is achieved.

[0005] However, although the patent can lock the wheel hub, when the half taper sleeve moves towards the tapered hole for locking, the flange and the shaft are not perpendicular, which leads to deviation from the track in application, high damage and maintenance rate of the wheel hub, and time-consuming and laborious replacement of the wheel hub, thereby wasting the use cost. UTILITY MODEL CONTENTS

[0006] The utility model wants to solve the main technical problem to provide a whole simple structure can lock the installation of hub, the deviation is automatically adjusted in the process of marching, and can real -time detection, maintenance is convenient, saves time, improves the use effect's adjustable agricultural wheel hub installation device.

[0007] To solve the above technical problems, the utility model provides the following technical scheme:

[0008] A adjustable agricultural wheel hub installation device, first transmission shaft is fixedly connected with self -adjusting subassembly on the first transmission shaft, the other end of self -adjusting subassembly is detachably connected with the shaft sleeve subassembly, the outer surface of shaft sleeve subassembly is provided with conical surface, the hub is toped with on the conical surface, and the shaft sleeve subassembly is detachably connected with the hub;

[0009] The self -adjusting subassembly includes the first connecting plate fixedly installed at the one end of the first transmission shaft, and the other end of the first connecting plate away from the first transmission shaft is further provided with the second connecting plate, and the second connecting plate is arranged in parallel with the first connecting plate at intervals.

[0010] The edge position annular array of first connecting plate and second connecting plate has multiple spring assemblies for realizing automatic adjustment.

[0011] The second end of second connecting plate away from first connecting plate and corresponding to first transmission shaft is fixedly installed with second transmission shaft.

[0012] The following is the further optimization of the utility model to the above technical scheme:

[0013] The spring assembly includes T-shaped rod, and the T-shaped rod is screwed with lock nut after penetrating through first connecting plate and second connecting plate at the same time.

[0014] Further optimization: the outer surface of T-shaped rod is provided with heavy spring, and the heavy spring is located between first connecting plate and second connecting plate and is in compression state.

[0015] Further optimization: the outer surface of T-shaped rod is provided with self -adjusting gap between first connecting plate and second connecting plate, and the size of self -adjusting gap is 2-2.5mm.

[0016] Further optimization: a plurality of displacement sensors are uniformly installed on the opposite side of second connecting plate and first connecting plate, each displacement sensor is located between two T-shaped rods, and is used for detecting the displacement between first connecting plate and second connecting plate.

[0017] Further optimization: the shaft sleeve subassembly includes first half shaft sleeve detachably installed on second transmission shaft through flat key, and second half shaft sleeve is also sleeved on second transmission shaft, and second half shaft sleeve and first half shaft sleeve are symmetrically arranged.

[0018] Further optimization: the outer surfaces of the first half shaft sleeve and the second half shaft sleeve are provided as tapered surfaces, and the hub sleeve is arranged on the tapered surfaces.

[0019] The utility model discloses adopt above -mentioned technical scheme, clever design, reasonable in structure can guarantee the flange plate of hub and transmission shaft automatic regulation in the hub installation of agricultural machine mutually perpendicular and keep, and can pass through the displacement state between the real -time detection first connecting plate and second connecting plate, judge the normal condition in the hub use process and achieve real -time adjustment, convenient maintenance replacement improves use efficiency, prolongs the life, safe and reliable, convenient operation, and whole structure is simple, convenient manufacture and production can reduce production and use cost, improve economic benefits.

[0020] The utility model is further illustrated below in connection with the drawings and examples. DRAWINGS

[0021] Figure 1 It is the schematic diagram of whole structure in the embodiment of the utility model;

[0022] Figure 2 It is the front view of whole structure in the embodiment of the utility model;

[0023] Figure 3 It is A-A section view in the embodiment of the utility model;

[0024] Figure 4 It is the structure schematic diagram of axle sleeve subassembly in the embodiment of the utility model.

[0025] In the drawing: 1, first transmission shaft;2, self -adjusting subassembly;21, first connecting plate;22, second connecting plate;23, T type pole;24, heavy spring;25, lock nut;26, displacement sensor;27, second transmission shaft;28, self -adjusting gap;3, axle sleeve subassembly;31, first half shaft sleeve;32, second half shaft sleeve;4, hub. DETAILED DESCRIPTION

[0026] As Figures 1-4 Shown: a adjustable agricultural machinery hub installation device, including first transmission shaft 1, first transmission shaft 1 is fixedly connected with self -adjusting subassembly 2, and the other end of self -adjusting subassembly 2 is detachably connected with axle sleeve subassembly 3, and the outer surface of axle sleeve subassembly 3 is provided with conical surface, and the conical surface is top connected with hub 4, and axle sleeve subassembly 3 is detachably connected with hub 4;

[0027] Self -adjusting subassembly 2 includes first connecting plate 21 that is fixedly installed at one end of first transmission shaft 1, and the other end of first connecting plate 21 away from first transmission shaft 1 is also provided with second connecting plate 22, and second connecting plate 22 is parallelly arranged with first connecting plate 21;

[0028] Multiple sets of spring assemblies for automatic adjustment are arranged in a ring at the edges of the first connecting plate 21 and the second connecting plate 22.

[0029] The second connecting plate 22 is fixedly installed at one end away from the first connecting plate 21 and at a position corresponding to the first drive shaft 1.

[0030] In this embodiment, the adjustable agricultural machinery wheel hub mounting device is applied to both ends of the power output of the rear axle of the agricultural machinery for mounting tires.

[0031] One end of the first drive shaft 1 is connected to the corresponding power output end of the agricultural machinery rear axle and rotates under the action of the power output end of the agricultural machinery rear axle.

[0032] In the prior art, the transmission connection method between the first drive shaft 1 and the power output end of the agricultural machinery rear axle is a well-known and widely used technology, and will not be described in detail here.

[0033] like Figures 2-3 As shown, the spring assembly includes a T-shaped rod 23, which passes through both the first connecting plate 21 and the second connecting plate 22 and is threadedly connected to a locking nut 25.

[0034] A heavy-duty spring 24 is fitted on the outer surface of the T-shaped rod 23. The heavy-duty spring 24 is located between the first connecting plate 21 and the second connecting plate 22. That is, one end of the heavy-duty spring 24 is in contact with the first connecting plate 21, and the other end of the heavy-duty spring 24 is in contact with the second connecting plate 22.

[0035] In this embodiment, the heavy spring 24 is in a compressed state.

[0036] A self-adjusting gap 28 is provided between the outer surface of the T-shaped rod 23 and the first connecting plate 21 and the second connecting plate 22, and the size of the self-adjusting gap 28 is set to 2.5mm.

[0037] With this design, the T-shaped rod 23 has a certain amount of room for movement, which in turn drives the second connecting plate 22 and the second transmission shaft 27 to have a certain amount of room for movement. However, under the elastic action of the heavy spring 24, the second connecting plate 22 is always in a state parallel to the first connecting plate 21.

[0038] Multiple displacement sensors 26 are evenly installed on the side of the second connecting plate 22 opposite to the first connecting plate 21. Each displacement sensor 26 is located between two T-shaped rods 23 and is used to detect whether the displacement between the first connecting plate 21 and the second connecting plate 22 is the same. Adjustment is achieved by rotating the locking nut 25 according to the data change of the corresponding displacement sensor 26.

[0039] In this embodiment, all displacement sensors 26 are electrically connected to the main control system of the agricultural machinery. The normal status of all displacement sensors 26 can be displayed through the wireless control panel of the agricultural machinery, which is convenient for adjustment.

[0040] The displacement sensor 26 can also detect the state of the corresponding heavy spring 24. When the heavy spring 24 is under normal spring compression, the displacement value fluctuates within the elastic range. When one of the heavy springs 24 fails (such as breaking or plastic deformation), the local displacement will deviate significantly, which is easy to detect.

[0041] The bushing assembly 3 is detachably connected to the second drive shaft 27 via a flat key.

[0042] The bushing assembly 3 includes a first half-shaft sleeve 31 that can be detachably mounted on the second drive shaft 27 via a flat key. A second half-shaft sleeve 32 is also fitted on the second drive shaft 27. The second half-shaft sleeve 32 and the first half-shaft sleeve 31 are arranged symmetrically.

[0043] The outer surfaces of the first half-shaft sleeve 31 and the second half-shaft sleeve 32 are set as conical surfaces, and the hub 4 is sleeved on the conical surface.

[0044] The first half-shaft sleeve 31 and the second half-shaft sleeve 32 are simultaneously fixedly installed on the wheel hub 4 with bolts.

[0045] When installing the hub 4, the first half-shaft sleeve 31 and the second half-shaft sleeve 32 are first installed in the middle mounting hole of the hub 4 by bolts. In this embodiment, the middle hole of the hub 4 is set as a tapered hole that matches the tapered surface.

[0046] Then, the first half-shaft sleeve 31 and the second half-shaft sleeve 32, which are installed together, are mounted on the outer surface of the second drive shaft 27 using a flat key, thus completing the installation of the wheel hub 4.

[0047] When in use, first observe the display status of the displacement sensor 26 on the control panel of the agricultural machinery equipment, adjust the locking nut 25 corresponding to the abnormal displacement sensor 26, make the first connecting plate 21 parallel to the second connecting plate 22, and ensure the elastic force of the heavy spring 24, thereby ensuring that the flange of the wheel hub 4 is perpendicular to the first drive shaft 1.

[0048] If the uneven force on the wheel hub 4 causes deviation during the movement of the agricultural machinery, it will cause the second drive shaft 27 to shake. Due to the self-adjusting clearance 28, the second drive shaft 27 has a certain adjustment margin. At the same time, under the reaction force of the heavy spring 24, the uneven force on the wheel hub 4 will be offset, and the wheel hub 4 will always be in a balanced state under the drive of the second connecting plate 22. Even if the flange of the wheel hub 4 is perpendicular to the first drive shaft 1, the stability of the wheel hub 4 during use will be improved and the number of maintenance times of the wheel hub 4 will be reduced.

[0049] When the displacement sensor 26 malfunctions, simply adjust the locking nut 25 corresponding to the malfunctioning displacement sensor 26. If the heavy spring 24 fails, the displacement sensor 26 at the location of the failed heavy spring 24 will show an abnormality. Simply replace the heavy spring 24 at this location. This makes maintenance convenient and improves work efficiency.

[0050] For those skilled in the art, any changes, modifications, substitutions, and variations made to the embodiments based on the teachings of this utility model, without departing from the principles and spirit of this utility model, still fall within the protection scope of this utility model.

Claims

1. An adjustable agricultural machinery hub mounting device, comprising a first drive shaft (1), characterized in that: A self-adjusting assembly (2) is fixedly connected to the first drive shaft (1). A bushing assembly (3) is detachably connected to the other end of the self-adjusting assembly (2). A conical surface is provided on the outer surface of the bushing assembly (3), and a hub (4) is attached to the conical surface. The bushing assembly (3) and the hub (4) are detachably connected. The self-adjusting component (2) includes a first connecting plate (21) fixedly installed at one end of the first drive shaft (1), and a second connecting plate (22) is provided at the other end of the first connecting plate (21) away from the first drive shaft (1). The second connecting plate (22) and the first connecting plate (21) are arranged parallel to each other at intervals. The first connecting plate (21) and the second connecting plate (22) are arranged in a ring at their edges, with multiple sets of spring assemblies for automatic adjustment. The second connecting plate (22) has a second drive shaft (27) fixedly installed at the end away from the first connecting plate (21) and at the position corresponding to the first drive shaft (1).

2. The adjustable agricultural machinery hub mounting device according to claim 1, characterized in that: The spring assembly includes a T-shaped rod (23), which passes through both the first connecting plate (21) and the second connecting plate (22) and is threaded with a locking nut (25).

3. The adjustable agricultural machinery hub mounting device according to claim 2, characterized in that: A heavy spring (24) is fitted on the outer surface of the T-shaped rod (23). The heavy spring (24) is located between the first connecting plate (21) and the second connecting plate (22) and is in a compressed state.

4. The adjustable agricultural machinery hub mounting device according to claim 3, characterized in that: A self-adjusting gap (28) is provided between the outer surface of the T-shaped rod (23) and the first connecting plate (21) and the second connecting plate (22), and the size of the self-adjusting gap (28) is set to 2-2.5mm.

5. The adjustable agricultural machinery hub mounting device according to claim 4, characterized in that: Multiple displacement sensors (26) are evenly installed on the side of the second connecting plate (22) opposite to the first connecting plate (21). Each displacement sensor (26) is located between two T-shaped rods (23) and is used to detect the displacement between the first connecting plate (21) and the second connecting plate (22).

6. The adjustable agricultural machinery hub mounting device according to claim 5, characterized in that: The bushing assembly (3) includes a first half bushing (31) that can be detachably mounted on the second drive shaft (27) via a flat key. A second half bushing (32) is also fitted on the second drive shaft (27). The second half bushing (32) and the first half bushing (31) are arranged symmetrically.

7. The adjustable agricultural machinery hub mounting device according to claim 6, characterized in that: The outer surfaces of the first half-shaft sleeve (31) and the second half-shaft sleeve (32) are set as conical surfaces, and the hub (4) is sleeved on the conical surface. The first half-shaft sleeve (31) and the second half-shaft sleeve (32) can be detachably installed on the hub (4).

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