Rotary cultivator cutter shaft bearing seat end cover with auxiliary engine oil tank

Abstract

The utility model belongs to the technical field of rotary cultivator cutter shaft bearing seat end covers, and discloses a rotary cultivator cutter shaft bearing seat end cover with an auxiliary engine oil tank, which comprises an end cover, a connecting fastener, a bearing seat, a bearing and a cutter shaft head, the cutter shaft head extends into an inner cavity of the bearing seat and is connected with the bearing seat through a bearing, an oil filling hole is formed in the bottom of the end cover, and an auxiliary oil tank is fixedly installed above the end cover. The situation that the oil temperature rises too fast due to insufficient oil in the end cover and oil-free lubrication is caused by too large engine oil loss can be reduced, meanwhile, engine oil can flow between the auxiliary oil tank and the end cover under the condition that the cutter shaft head rotates, the heat dissipation area can be increased through the auxiliary oil tank, engine oil consumption is reduced, and the service life of the cutter shaft head is prolonged. And the service life of the rotary cultivator cutter shaft is greatly prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of the end cover of the rotary tiller knife shaft bearing seat, and particularly relates to an end cover of the rotary tiller knife shaft bearing seat with an auxiliary oil tank. Background Art

[0002] Since the advent of the rotary tiller, grease has been mostly used to lubricate the knife shaft and the bearing seat, that is, grease (butter) is the lubricant for the oil seal and the bearing in the knife shaft and the bearing seat. Due to the poor fluidity of the grease, the oil seal often works in a state of oil-free lubrication, which exacerbates the wear, aging and deformation of the oil seal, causing soil and water to enter the inside of the bearing seat from the outside, shortening the service life of the bearing, and seriously, the knife shaft will be scrapped. If the grease is replaced with oil with better fluidity, the above situation has been greatly improved in a short time. However, because the space inside the bearing seat is too small and the oil storage capacity is too small, the oil temperature rises too fast and the oil loss is too large. When the oil in the bearing seat is consumed, the state of oil-free lubrication will also occur. Therefore, we propose an end cover of the rotary tiller knife shaft bearing seat with an auxiliary oil tank. Content of the Utility Model

[0003] To solve the problem of insufficient oil storage space in the existing end cover of the rotary tiller knife shaft bearing seat, which easily leads to too fast oil temperature rise, too large oil loss and oil-free lubrication as mentioned in the above background art, the utility model provides an end cover of the rotary tiller knife shaft bearing seat with an auxiliary oil tank.

[0004] To achieve the above purpose, the utility model provides the following technical solution: an end cover of the rotary tiller knife shaft bearing seat with an auxiliary oil tank, including an end cover, a connecting fastener, a bearing seat, a bearing and a knife shaft head. The end cover is installed on the right side of the bearing seat and fixedly connected through the connecting fastener. The knife shaft head extends into the inner cavity of the bearing seat and is connected with the bearing seat through the bearing. An oil seal is arranged between one end of the knife shaft head extending into the inner cavity of the bearing seat and the bearing seat. A dust-proof ring is installed at the connection between the knife shaft head and the bearing seat. An oil filling hole is opened at the bottom of the end cover. An auxiliary oil tank is fixedly installed above the end cover, and the bottom of the auxiliary oil tank is communicated with the end cover.

[0005] Preferably, a flange is fixedly installed at the rear side of the end cover. Connection holes for connecting with the bearing seat are opened on the flange, and there are multiple groups of the connection holes, and the multiple groups of connection holes are arranged on the flange at equal angles.

[0006] Preferably, the midline of the oil filling hole is located between two adjacent groups of the connection holes below, and the midline of the auxiliary oil tank is located between two adjacent groups of the connection holes above.

[0007] Preferably, an oil leakage hopper is provided at the bottom of the auxiliary fuel tank, and the oil leakage hopper and the bottom of the auxiliary fuel tank are integrally formed. The bottom of the auxiliary fuel tank is connected to the end cover through the oil leakage hopper.

[0008] Preferably, a fuel tank bottom plate is fixedly installed at the rear side of the auxiliary fuel tank, and installation holes are provided on both the left and right sides of the surface of the fuel tank bottom plate.

[0009] Preferably, an oil level mirror is fitted and installed on the surface of the auxiliary fuel tank, and an exhaust valve is fixedly installed on the top of the auxiliary fuel tank.

[0010] Preferably, the connecting fasteners include bolts, gaskets and nuts.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] By adding a group of auxiliary fuel tanks above the end cover, the present utility model increases the oil storage volume of the end cover, which can reduce the situation of too fast oil temperature rise and too large oil consumption in the end cover leading to oil-free lubrication due to insufficient oil in the end cover. At the same time, when the oil rotates with the rotation of the cutter shaft head, the oil can flow between the auxiliary fuel tank and the end cover. The auxiliary fuel tank can increase the heat dissipation area, reduce the oil consumption, and greatly improve the service life of the rotary tiller cutter shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the present utility model;

[0014] Figure 2 is a schematic connection structure diagram of the end cover and the auxiliary fuel tank of the present utility model;

[0015] Figure 3 is a schematic structural diagram of the fuel tank bottom plate of the present utility model.

[0016] In the figure: 1, end cover; 101, fuel filling hole; 102, connection hole; 2, auxiliary fuel tank; 201, fuel tank bottom plate; 202, oil level mirror; 203, exhaust valve; 3, connecting fasteners; 301, bolt; 302, gasket; 303, nut; 4, bearing seat; 5, oil seal; 6, bearing; 7, dust-proof ring; 8, cutter shaft head. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The following further describes the present utility model in detail with reference to the Figures 1-3 accompanying drawings.

[0018] Referring to Figures 1-3 , in this embodiment, a rotary tiller cutter shaft bearing seat end cover with an auxiliary oil tank is provided to solve the problem of insufficient oil storage space in the existing rotary tiller cutter shaft bearing seat end cover, which is prone to too fast oil temperature rise and too large oil consumption leading to oil-free lubrication. It includes:

[0019] It includes an end cover 1, a connecting fastener 3, a bearing seat 4, a bearing 6 and a cutter shaft head 8. The end cover 1 is installed on the right side of the bearing seat 4 and fixedly connected through the connecting fastener 3. The cutter shaft head 8 extends into the inner cavity of the bearing seat 4 and is connected to the bearing seat 4 through the bearing 6. An oil seal 5 is arranged between one end of the cutter shaft head 8 extending into the inner cavity of the bearing seat 4 and the bearing seat 4. A dust-proof ring 7 is installed at the connection between the cutter shaft head 8 and the bearing seat 4. An oil filling hole 101 is opened at the bottom of the end cover 1, and an auxiliary oil tank 2 is fixedly installed above the end cover 1, and the bottom of the auxiliary oil tank 2 is communicated with the end cover 1.

[0020] With the above scheme: Engine oil is added into the end cover 1 through the oil filling hole 101 and then into the auxiliary oil tank 2 through the end cover 1, which increases the oil storage capacity of the end cover 1. When the cutter shaft head 8 rotates in the bearing seat 4, friction will be generated between the cutter shaft head 8 and the oil seal 5, and the bearing 6 itself will also generate friction. The heat generated due to friction will be transferred to the auxiliary oil tank 2 through the engine oil and dissipated externally through the auxiliary oil tank 2. This can also increase the heat dissipation area of the engine oil, improve the heat dissipation efficiency, reduce the possibility of the engine oil temperature rising too fast, and improve the service life of the rotary tiller cutter shaft.

[0021] It should be added that a flange plate is fixedly installed at the rear side of the end cover 1, and connection holes 102 connected to the bearing seat 4 are opened on the flange plate, and there are multiple groups of the connection holes 102, and the multiple groups of connection holes 102 are arranged on the flange plate at equal angles.

[0022] The connecting fastener 3 includes a bolt 301, a gasket 302 and a nut 303.

[0023] With the above technology, the end cover 1 is connected to the bearing seat 4 through the cooperation of multiple groups of connection holes 102 on the flange plate and the connecting fastener 3. The specific operation is to first insert the bolt 301 into the connection hole 102, then into the hole on the bearing seat 4, put on the gasket 302, and then screw on the nut 303 for fixation.

[0024] It should be added that the center line of the oil filling hole 101 is located between two adjacent groups of the connection holes 102 below, and the center line of the auxiliary oil tank 2 is located between two adjacent groups of connection holes 102 above.

[0025] With the above technology, through the above design, enough space can be provided for the installation of the connecting fastener 3, and the installation and fixation difficulty between the end cover 1 and the bearing seat 4 can be reduced.

[0026] It should be added that an oil leakage hopper is arranged at the bottom of the auxiliary oil tank 2, and the oil leakage hopper and the bottom of the auxiliary oil tank 2 are of an integrally formed structure, and the bottom of the auxiliary oil tank 2 is communicated with the end cover 1 through the oil leakage hopper.

[0027] By adopting the above technology and through the design of the oil funnel, the main body of the auxiliary oil tank 2 can be lifted above the flange on the end cover 1, which can reduce the impact of the auxiliary oil tank 2 on the operation of the end cover 1.

[0028] It should be supplemented that a tank bottom plate 201 is fixedly mounted on the rear side of the auxiliary tank 2 , and mounting holes are provided on both left and right sides of the surface of the tank bottom plate 201 .

[0029] By adopting the above technology, the auxiliary oil tank 2 can be conveniently installed on a frame connected to the rotary tiller, or directly installed on the main body of the rotary tiller through the mounting holes on the oil tank bottom plate 201. In this way, the auxiliary oil tank 2 can be supported by the oil tank bottom plate 201, reducing the pressure of the auxiliary oil tank 2 on the end cover 1, making the auxiliary oil tank 2 more stable to use.

[0030] It should be supplemented that an oil level mirror 202 is embedded and installed on the surface of the auxiliary oil tank 2 , and an exhaust valve 203 is fixedly installed on the top of the auxiliary oil tank 2 .

[0031] By adopting the above technology, when adding engine oil, the exhaust valve 203 is first opened to connect the auxiliary oil tank 2 with the outside. When the engine oil is added, the air in the end cover 1 and the auxiliary oil tank 2 can be discharged through the exhaust valve 203, which reduces the difficulty of adding engine oil and ensures that the air pressure in the end cover 1 and the auxiliary oil tank 2 is stable. When the engine oil is added to the oil level mirror 202, refueling is stopped. After refueling is completed, the exhaust valve 203 is closed, and the oil plug is installed in the refueling hole 101, so that the space between the end cover 1 and the auxiliary oil tank 2 remains sealed.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rotary tiller blade shaft bearing seat end cover with an auxiliary oil tank, comprising an end cover, a connecting fastener, a bearing seat, a bearing and a blade shaft head, wherein the end cover is mounted on the right side of the bearing seat and is fixedly connected by connecting fasteners, the blade shaft head extends into the inner cavity of the bearing seat and is connected to the bearing seat through a bearing, an oil seal is arranged between one end of the blade shaft head extending into the inner cavity of the bearing seat and the bearing seat, and a dust ring is installed at the connection between the blade shaft head and the bearing seat, characterized in that: A refueling hole is provided at the bottom of the end cover, an auxiliary oil tank is fixedly installed above the end cover, and the bottom of the auxiliary oil tank is communicated with the end cover.

2. The end cover of the blade shaft bearing seat of the rotary tiller with an auxiliary oil tank according to claim 1 is characterized in that: A flange is fixedly mounted on the rear side of the end cover. The flange is provided with connecting holes connected to the bearing seat. There are multiple groups of connecting holes, and the multiple groups of connecting holes are arranged at equal angles on the flange.

3. The end cover of the blade shaft bearing seat of the rotary tiller with an auxiliary oil tank according to claim 2 is characterized in that: The center line of the refueling hole is located between two adjacent groups of connecting holes at the bottom, and the center line of the auxiliary oil tank is located between two adjacent groups of connecting holes at the top.

4. The end cover of the rotary tiller blade shaft bearing seat with an auxiliary oil tank according to claim 3 is characterized in that: An oil funnel is provided at the bottom of the auxiliary oil tank, and the oil funnel and the bottom of the auxiliary oil tank are an integrally formed structure, and the bottom of the auxiliary oil tank is connected with the end cover through the oil funnel.

5. The end cover of the blade shaft bearing seat of the rotary tiller with an auxiliary oil tank according to claim 4 is characterized in that: A fuel tank bottom plate is fixedly mounted on the rear side of the auxiliary fuel tank, and mounting holes are provided on both left and right sides of the surface of the fuel tank bottom plate.

6. The end cover of the blade shaft bearing seat of the rotary tiller with an auxiliary oil tank according to claim 4 is characterized in that: An oil level mirror is embedded and installed on the surface of the auxiliary oil tank, and an exhaust valve is fixedly installed on the top of the auxiliary oil tank.

7. The end cover of the blade shaft bearing seat of the rotary tiller with an auxiliary oil tank according to claim 1, characterized in that: The connecting fasteners include bolts, washers and nuts.

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