Engine and cover plate thereof for blocking rear power take-off port

Abstract

The utility model discloses an engine and a cover plate used for blocking a rear power take-off port thereof, the cover plate used for blocking the rear power take-off port comprises a cover plate body made of nylon materials, the cover plate body is provided with a through hole used for a bolt to penetrate through, the cover plate body is provided with a first side and a second side, and the first side is provided with a sealing protrusion. The cover plate body of the cover plate is made of the nylon material, so that the weight of the cover plate can be reduced, the assembly efficiency can be improved, the working intensity of operators can be reduced, the production cost of enterprises can be reduced, and the market competitiveness of products can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of engines, and in particular relates to an engine and a cover plate thereof for blocking a rear power take-off port. Background Art

[0002] In the prior art, the cover plate used for temporarily blocking the rear power take-off port of the engine used in non-road stage IV agricultural machinery is a cast iron cover plate made of gray cast iron. The cast iron cover plate has the following disadvantages:

[0003] 1) Cast iron cover is a metal mold part, the mold opening cost is high, which increases the production cost of the enterprise;

[0004] 2) The cast iron cover is heavy, making it inconvenient for operators to carry it. It is also difficult for one person to lift it with one hand during assembly, and another person is required to assist in assembling the bolts. This results in low assembly efficiency, high labor costs, and low market competitiveness of the product.

[0005] 3) After the engine arrives at the main engine plant, the cast iron cover is removed and discarded when assembling the hydraulic pump, resulting in a waste of resources;

[0006] 4) The surface of the cast iron cover is rough, unsightly, and easily scratches the operator's hands.

[0007] Rear power take-off: A structure that transmits the engine's power through a transmission to the rear for use by other equipment.

[0008] Bearing cover: The end cover that connects the rear power take-off and the flywheel housing. Summary of the Invention

[0009] The first technical problem to be solved by the present invention is to provide a cover plate for blocking the rear power take-off port, which can reduce the weight of the cover plate, improve assembly efficiency, reduce the production cost of the enterprise, and enhance the market competitiveness of the product.

[0010] In order to solve the above technical problems, the technical solution of the utility model is:

[0011] A cover plate for sealing a rear power take-off port comprises a cover plate body made of nylon, the cover plate body being provided with a through hole for passing a bolt, the cover plate body having a first side and a second side, the first side being provided with a sealing protrusion.

[0012] Furthermore, a mounting protrusion is provided on the free side of the sealing protrusion, and the outer diameter of the mounting protrusion is smaller than the outer diameter of the sealing protrusion.

[0013] Furthermore, a bushing is provided in the through hole, and the bushing is interference fit with the through hole.

[0014] Furthermore, the bushing is made of carbon steel.

[0015] Furthermore, a first side weight-reducing groove is provided on the free side of the mounting protrusion.

[0016] Furthermore, a second side weight-reducing groove is provided on the second side.

[0017] Furthermore, the second side is also provided with reinforcing ribs.

[0018] Furthermore, there are four through holes evenly distributed along the circumferential direction, and there are four reinforcing ribs provided. The reinforcing ribs are provided between two adjacent through holes, and the four reinforcing ribs together form a quadrilateral structure.

[0019] Based on a general inventive concept, the second technical problem to be solved by the present invention is to provide an engine that can reduce the weight of the cover plate, improve assembly efficiency, reduce the production cost of the enterprise, and enhance the market competitiveness of the product.

[0020] An engine includes an engine body, a flywheel housing is provided on the engine body, a bearing cover is provided on the flywheel housing, the inner cavity of the bearing cover forms a rear power take-off port, and a cover plate for sealing the rear power take-off port as described above is installed on the bearing cover, and the bearing cover and the cover plate are installed together using the bolts.

[0021] Furthermore, a sealing ring is provided on the outer peripheral surface of the sealing protrusion. When the cover plate is installed on the bearing cover, the sealing ring is located between the sealing protrusion and the inner side wall of the inner cavity of the bearing cover.

[0022] Due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0023] The cover plate used to seal the rear power take-off port includes a nylon cover plate body, a through hole for receiving a bolt, a first side and a second side, and a sealing protrusion on the first side. The nylon cover plate of the utility model can reduce the weight of the cover plate, improve assembly efficiency, reduce operator workload, reduce production costs for the enterprise, and enhance the market competitiveness of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional diagram of a cover plate for blocking a rear power take-off port of the present invention;

[0025] Figure 2 This is a three-dimensional view of the cover plate for blocking the rear power take-off port of the present invention from another angle;

[0026] Figure 3 It is a three-dimensional diagram of the connection structure between the cover plate and the bearing cover;

[0027] Figure 4 yes Figure 3A three-dimensional view of the middle bearing cap;

[0028] Figure 5 It is a structural diagram of the engine of the utility model;

[0029] Figure 6 yes Figure 5 Side view of

[0030] In the figure, 1. body; 2. cover plate; 21. first side; 22. second side; 23. bushing; 24. sealing protrusion; 25. mounting protrusion; 26. reinforcing rib; 27. first side weight-reducing groove; 28. second side weight-reducing groove; 3. bearing cover; 31. threaded hole; 32. inner cavity; 4. flywheel housing; 5. bolt. DETAILED DESCRIPTION

[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0032] Example 1:

[0033] Combine Figure 1 as well as Figure 2 As shown, a cover plate 2 for sealing a rear power take-off port includes a nylon cover plate body. In this embodiment, the cover plate body is preferably made of PA66 material, which reduces the cost of plastic molds. The nylon cover plate body is lightweight, allowing operators to easily support the assembly with one hand while holding the other, resulting in efficient assembly and reduced labor costs. The cover plate body is made of nylon and contains glass fiber, which provides high-temperature resistance, wear resistance, and excellent mechanical properties. The nylon cover plate body is aesthetically pleasing.

[0034] The cover body is provided with a through hole for passing the bolt 5 . The cover body has a first side 21 and a second side 22 . The first side 21 is provided with a sealing protrusion 24 .

[0035] Preferably, a mounting protrusion 25 is further provided on the free side of the sealing protrusion 24 , and the outer diameter of the mounting protrusion 25 is smaller than the outer diameter of the sealing protrusion 24 .

[0036] More preferably, a bushing 23 is provided in the through hole, and the bushing 23 has an interference fit with the through hole. The bushing 23 is further preferably made of carbon steel.

[0037] Preferably, a first side weight-reducing groove 27 is provided on the free side of the mounting protrusion 25 , and a second side weight-reducing groove 28 is provided on the second side 22 .

[0038] Preferably, the second side 22 is further provided with a reinforcing rib 26 .

[0039] Further preferably, there are four through holes evenly distributed along the circumferential direction, and four reinforcing ribs 26 are provided. The reinforcing ribs 26 are provided between two adjacent through holes, and the four reinforcing ribs 26 together form a quadrilateral structure.

[0040] Nylon cover plates are easy to process, offering low mold-making costs and a short lead time, improving procurement efficiency. They are also lightweight and easy to assemble, saving labor and increasing assembly efficiency on the engine production line. Their aesthetically pleasing and smooth appearance is operator-friendly and contributes to the overall aesthetic appeal of the engine. Nylon cover plates are also less expensive than cast iron cover plates, reducing engine production costs and allowing OEMs to dismantle and discard them, minimizing resource waste.

[0041] Example 2:

[0042] Combine Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 ,as well as Figure 6 As shown, this embodiment also discloses an engine, comprising an engine body 1, a flywheel housing 4 mounted on the engine body 1, and a bearing cap 3 mounted on the flywheel housing 4. The inner cavity of the bearing cap 3 forms a rear power take-off port. The cover plate 2 for sealing the rear power take-off port of the first embodiment is mounted on the bearing cap 3. The bearing cap 3 is provided with a threaded hole 31, and bolts 5 are used to mount the bearing cap 3 and the cover plate 2 together.

[0043] Preferably, a sealing ring (not shown) is provided on the outer peripheral surface of the sealing protrusion 24 . When the cover plate 2 is mounted on the bearing cover 3 , the sealing ring is located between the sealing protrusion 24 and the inner side wall of the inner cavity of the bearing cover 3 .

[0044] The technical features named with serial numbers (such as the first side, the second side, etc.) involved in this specification are only for distinguishing the various technical features and do not represent the positional relationship, installation sequence, working sequence, etc. between the various technical features.

[0045] In the description of this specification, it should be understood that the orientation or positional relationship described in terms such as "outer diameter", "outer peripheral surface", "inner cavity", and "inner side wall" is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0046] Although the above describes specific embodiments of the present invention, those skilled in the art should understand that the embodiments described are only some of the embodiments of the present invention, not all of them, and are merely illustrative. The scope of protection of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention and without any creative work, and such changes and modifications shall fall within the scope of protection of the present invention.

Claims

1. A cover plate for blocking a rear power take-off port, characterized in that: The cover plate body comprises a nylon material, the cover plate body is provided with a through hole for passing a bolt, the cover plate body has a first side and a second side, the first side is provided with a sealing protrusion; A mounting protrusion is further provided on the free side of the sealing protrusion, and the outer diameter of the mounting protrusion is smaller than the outer diameter of the sealing protrusion; A bushing is provided in the through hole, and the bushing is interference fit with the through hole; A first side weight-reducing groove is provided on the free side of the mounting protrusion; The second side is provided with a second side weight reduction groove; The second side is further provided with a reinforcing rib; There are four through holes evenly distributed along the circumferential direction, and there are four reinforcing ribs provided. The reinforcing ribs are provided between two adjacent through holes, and the four reinforcing ribs together form a quadrilateral structure.

2. The cover plate for blocking the rear power take-off port according to claim 1, characterized in that: The bushing is made of carbon steel.

3. An engine, comprising a body, a flywheel housing provided on the body, a bearing cover provided on the flywheel housing, an inner cavity of the bearing cover forming a rear power take-off port, characterized in that: The bearing cover is mounted with a cover plate for blocking the rear power take-off port as claimed in claim 2 , and the bearing cover and the cover plate are mounted together using bolts.

4. The engine according to claim 3, wherein: A sealing ring is further provided on the outer peripheral surface of the sealing protrusion. When the cover plate is mounted on the bearing cover, the sealing ring is located between the sealing protrusion and the inner side wall of the inner cavity of the bearing cover.

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