Gearbox for rice and wheat combine harvester

Abstract

The utility model discloses a gearbox for a rice and wheat combine harvester, which belongs to the technical field of gearboxes and comprises a gearbox assembly, heat inside the gearbox can be conducted out from the upper end of the gearbox assembly through a heat conducting plate, and the heat conducting plate is arranged on the gearbox assembly. Heat on the heat conduction plate is dispersed through the multiple cooling fins, finally, heat dissipation is conducted on the multiple cooling fins through external wind, the situation that when the harvester advances, the gearbox assembly is directly impacted by a small soil slope, and consequently components in the gearbox assembly are damaged can be prevented through the arrangement of the pair of anti-collision rods, and through the arrangement of a baffle, the harvester can be prevented from being damaged. The problem that stones or soil blocks splashed by tires impact the gearbox assembly when the harvester advances again can be prevented, the gearbox assembly is sealed through the upper protective shell and the lower protective shell, and the situation that a large amount of dust enters the gearbox assembly during harvesting, and consequently internal components break down can be prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of gearboxes, and more specifically to a gearbox for a rice and wheat combine harvester. Background Art

[0002] The gearbox used in rice and wheat combine harvesters is generally a mechanical gearbox, which has the advantages of simple structure, high reliability and long life. This gearbox is suitable for various types of rice and wheat combine harvesters, and is easy to maintain and maintain, and the cost is relatively low. When selecting and using the gearbox, the overall performance and power requirements of the machine should be considered, and the appropriate gearbox model and specifications should be selected. At the same time, correct operation and maintenance are also important factors to ensure the normal operation of the gearbox and extend its service life.

[0003] China Patent Authorization Announcement No.: CN205357161U, provides a hydraulic drive motor combine harvester gearbox. For the combine harvester, the travel power accounts for about 20% to 25% of the total power in the working state. The hydrostatic travel drive gearbox does not require high engine speed and high power consumption when the vehicle needs a large driving force. It can generate large traction at low speed and has good low-speed stability. Saving fuel consumption and reducing environmental pollution not only bring good economic benefits to the machine owner, but also have huge social benefits, and low failure rate: Braking with a belt brake can effectively reduce the failure rate, while the old mechanical structure has a clutch failure rate of more than 30% due to frequent braking. However, the gearbox used in wheat combine harvesters is generally a mechanical gearbox, and because some low-cost rice and wheat combine harvesters usually install the gearbox under the front end of the harvester, it is usually exposed to the outside and only protected by the upper body. The lower end is usually hollowed out for heat dissipation. However, the mechanical gearbox has many internal parts and is extremely prone to failure due to collision. This is why harvesters need to be repaired frequently. At the same time, if a lot of dust enters the inside of the mechanical gearbox, it is extremely prone to failure.

[0004] Therefore, in view of the above problems, a gearbox for a rice and wheat combine harvester is proposed. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide a gearbox for a rice and wheat combine harvester, which can cover the gearbox assembly through an upper protective shell and a lower protective shell to prevent a large amount of dust from entering the body of the gearbox assembly during harvesting and causing malfunctions.

[0007] 2. Technical solution

[0008] To solve the above problems, the utility model adopts the following technical solutions.

[0009] A gearbox for a rice-wheat combine harvester comprises a gearbox assembly, wherein a protective component is provided in the middle of the gearbox assembly;

[0010] The protective component includes an upper protective shell arranged at the upper end of the gearbox assembly, a lower protective shell is provided at the lower end of the upper protective shell, the front and rear ends of the upper protective shell are fixedly connected with a first bolt mounting block, the front and rear ends of the lower protective shell are fixedly connected with a second bolt mounting block, and a pair of second bolt mounting blocks are arranged in a one-to-one correspondence with a pair of first bolt mounting blocks, and the second bolt mounting block and the first bolt mounting block are fixedly connected to each other by bolts.

[0011] Furthermore, a heat conducting plate is fixedly connected to the middle of the upper protective shell, and the lower end of the heat conducting plate is in contact with the upper end of the gearbox assembly, and a plurality of heat sinks are fixedly connected to the upper end of the heat conducting plate.

[0012] Furthermore, the front end of the lower protective shell is fixedly connected to a mounting bar, and both left and right ends of the mounting bar are fixedly connected to anti-collision rods, and a baffle is fixedly connected to one end of a pair of anti-collision rods and located below the first bolt mounting block.

[0013] Furthermore, a rectangular hole is provided at the upper end of the upper protective shell for fixed connection with the heat conducting plate.

[0014] Furthermore, the overall shape of the pair of anti-collision bars is arc-shaped.

[0015] Furthermore, a plurality of small holes are provided in the middle of the baffle.

[0016] 3. Beneficial effects

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] This solution can conduct the heat inside the gearbox from the upper end of the gearbox assembly through the provision of a heat conduction plate, and then disperse the heat on the heat conduction plate through a plurality of heat sinks, and finally dissipate the heat from the plurality of heat sinks through external wind. A pair of anti-collision bars can be provided to prevent the harvester from directly hitting the gearbox assembly when encountering a small earth slope while moving forward, causing damage to the internal components of the gearbox assembly. The provision of a baffle can prevent the harvester from splashing stones or earth from hitting the gearbox assembly when moving. The gearbox assembly is sealed by the upper protective shell and the lower protective shell, which can prevent a large amount of external dust from entering the gearbox assembly during harvesting, causing failure of internal components. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the upper protective shell and the lower protective shell of the utility model;

[0021] Figure 3 It is a schematic diagram of the overall split structure of the utility model;

[0022] Figure 4 The utility model is a schematic diagram of the connection structure between the anti-collision rod and the baffle.

[0023] Explanation of the numbers in the figure: 1. gearbox assembly; 2. protection component; 201. upper protective shell; 202. lower protective shell; 203. first bolt mounting block; 204. second bolt mounting block; 205. heat conducting plate; 206. heat sink; 207. mounting strip; 208. anti-collision rod; 209. baffle. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0025] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] Example:

[0028] See also Figure 1-4 , a gearbox for a rice-wheat combine harvester, comprising a gearbox assembly 1, characterized in that: a protective component 2 is provided in the middle of the gearbox assembly 1;

[0029] The protection assembly 2 includes an upper protection housing 201 arranged at the upper end of the gearbox assembly 1, a lower protection housing 202 is provided at the lower end of the upper protection housing 201, and the front and rear ends of the upper protection housing 201 are fixedly connected with a first bolt mounting block 203, and the front and rear ends of the lower protection housing 202 are fixedly connected with a second bolt mounting block 204, and a pair of second bolt mounting blocks 204 are arranged in a one-to-one correspondence with a pair of first bolt mounting blocks 203, and the second bolt mounting blocks 204 and the first bolt mounting blocks 203 are fixedly connected. The upper protective shell 201 is fixedly connected to each other by bolts, and a heat conducting plate 205 is fixedly connected to the middle part, and the lower end of the heat conducting plate 205 is in contact with the upper end of the gearbox assembly 1, and a plurality of heat sinks 206 are fixedly connected to the upper end of the heat conducting plate 205, and a mounting strip 207 is fixedly connected to the front end of the lower protective shell 202, and anti-collision rods 208 are fixedly connected to the left and right ends of the mounting strip 207, and a baffle 209 is fixedly connected to one end of a pair of anti-collision rods 208 and located below the first bolt mounting block 203.

[0030] This solution uses a pair of anti-collision bars 208 to protect the front and lower ends of the gearbox assembly 1 when the harvester moves forward, to prevent the gearbox assembly 1 from being directly hit when encountering a small earth slope, causing external deformation of the gearbox assembly 1 or failure of internal parts. The setting of the baffle 209 can prevent the harvester tire from squeezing soil or stones and splashing them to hit the lower end of the gearbox assembly 1. The gearbox assembly 1 is then covered by the upper protective shell 201 and the lower protective shell 202, which can effectively prevent a large amount of dust from entering the gearbox assembly 1 during harvesting and causing internal component failure. The heat conduction plate 205 is used to export the heat from the upper end of the gearbox assembly 1, and the heat is dispersed through the heat sink 206, which can assist the gearbox assembly 1 in dissipating heat.

[0031] See also Figure 3 The upper end of the upper protective shell 201 is provided with a rectangular hole for fixed connection with the heat conducting plate 205 .

[0032] In this solution, the rectangular hole is provided to facilitate the lower end of the heat conducting plate 205 to fit with the upper end of the gearbox assembly 1 .

[0033] See also Figure 1-4 The overall shape of the pair of anti-collision bars 208 is arc-shaped.

[0034] In this solution, the anti-collision rod 208 is arranged in an arc shape as a whole, so that the front end and the lower end of the gearbox assembly 1 can be protected at the same time.

[0035] See also Figure 4 A plurality of small holes are formed in the middle of the baffle 209 .

[0036] In this solution, a plurality of small holes are provided in the middle of the baffle 209, so as to reduce the weight of the baffle 209, while not affecting the heat dissipation of the gearbox assembly.

[0037] Working principle: By setting a pair of anti-collision bars 208, the front end and the lower end of the gearbox assembly 1 can be protected when the harvester moves forward to prevent the gearbox assembly 1 from being directly hit when encountering a small earth slope, causing external deformation of the gearbox assembly 1 or failure of internal parts. At the same time, the baffle 209 can be set to prevent the harvester tire from squeezing soil or stones and splashing them to hit the lower end of the gearbox assembly 1. The gearbox assembly 1 is then covered by the upper protective shell 201 and the lower protective shell 202, which can effectively prevent a large amount of dust from entering the gearbox assembly 1 during harvesting and causing internal component failures. The heat conduction plate 205 is used to export the heat from the upper end of the gearbox assembly 1, and the heat is dispersed through the heat sink 206, which can assist the gearbox assembly 1 in dissipating heat.

[0038] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A gearbox for a rice-wheat combine harvester, comprising a gearbox assembly (1), characterized in that: A protective component (2) is provided in the middle of the gearbox assembly (1); The protection component (2) comprises an upper protection shell (201) arranged at the upper end of the gearbox assembly (1); a lower protection shell (202) is arranged at the lower end of the upper protection shell (201); the front and rear ends of the upper protection shell (201) are fixedly connected with a first bolt mounting block (203); the front and rear ends of the lower protection shell (202) are fixedly connected with a second bolt mounting block (204); a pair of second bolt mounting blocks (204) and a pair of first bolt mounting blocks (203) are arranged in a one-to-one correspondence; the second bolt mounting block (204) and the first bolt mounting block (203) are fixedly connected to each other by bolts.

2. A gearbox for a rice-wheat combine harvester according to claim 1, characterized in that: A heat conducting plate (205) is fixedly connected to the middle of the upper protective shell (201), and the lower end of the heat conducting plate (205) is in contact with the upper end of the gearbox assembly (1), and a plurality of heat sinks (206) are fixedly connected to the upper end of the heat conducting plate (205).

3. The gearbox for a rice-wheat combine harvester according to claim 1, characterized in that: The front end of the lower protective shell (202) is fixedly connected to a mounting bar (207), and both left and right ends of the mounting bar (207) are fixedly connected to anti-collision rods (208), and a baffle (209) is fixedly connected to one end of a pair of anti-collision rods (208) and located below the first bolt mounting block (203).

4. The gearbox for a rice-wheat combine harvester according to claim 1, characterized in that: A rectangular hole for fixedly connecting with the heat conducting plate (205) is provided at the upper end of the upper protective shell (201).

5. The gearbox for a rice-wheat combine harvester according to claim 3, characterized in that: The overall shape of the pair of anti-collision bars (208) is arc-shaped.

6. The gearbox for a rice-wheat combine harvester according to claim 3, characterized in that: A plurality of small holes are formed in the middle of the baffle (209).

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