Air-cooled diesel engine

Abstract

The utility model relates to the technical field of internal combustion engines, in particular to an air-cooled diesel engine which comprises a diesel engine body, an air guide device and a covering plate, the air guide device is installed on the diesel engine body and communicated with cooling fins in the diesel engine body, and the covering plate is in a circular plate shape and is evenly provided with a plurality of through air inlet holes. The covering plate detachably covers an air inlet of the air guide device, a rotating shaft penetrates through the center of the covering plate, a brush is fixed to the end, facing the air guide device, of the rotating shaft, the brush extends in the radial direction of the covering plate and is parallel to the covering plate, bristles on the brush are elastically pressed on the covering plate, and a rotary knob is fixed to the end, deviating from the air guide device, of the rotating shaft. The knob can drive the brush to rotate relative to the covering plate. According to the air-cooled diesel engine, dust can be blocked through the covering plate, and when the covering plate is blocked, dust removal can be conducted on the covering plate through bristles on the brush, so that the air guiding effect is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to internal combustion engine technical field especially relates to a air -cooled diesel engine. BACKGROUND

[0002] The diesel engine is a kind of internal combustion engine with diesel as fuel, can convert the heat energy released by fuel combustion into electric energy or mechanical energy, is used in special industries such as geological exploration, oil exploitation etc.Meanwhile, the diesel engine is divided into air-cooled diesel engine and water-cooled diesel engine according to different cooling methods, the manufacturing process requirement of air-cooled diesel engine is higher than water-cooled diesel engine, and the requirement of heat resistance, wear resistance, expansion coefficient of used material is also high, but air-cooled diesel engine has the characteristics of convenient starting, running economy and strong environmental adaptability, so it is still welcomed by the majority of users.

[0003] When air-cooled diesel engine works, external air is guided to the radiator in diesel engine by air guide device, to help diesel engine radiate heat and maintain normal temperature.When air guide device guides air, it will be accompanied by the inhalation of external dust, and the large amount of dust attached to the surface of air guide device will affect the air guiding effect of air guide device to the outside. UTILITARY MODEL CONTENTS

[0004] In order to solve the above technical problems, the utility model provides an air-cooled diesel engine capable of guaranteeing air guiding effect.

[0005] The utility model adopts the following technical scheme:

[0006] The utility model provides an air-cooled diesel engine, which comprises a diesel engine main body, an air guide device and a cover plate, the air guide device is installed on the diesel engine main body and communicates with the radiator inside the diesel engine main body, the cover plate is in the shape of a circular plate and is uniformly provided with a plurality of through air inlet holes, the cover plate is detachably covered at the air inlet of the air guide device, a rotating shaft is arranged at the center position of the cover plate, one end of the rotating shaft facing the air guide device is fixedly provided with a brush, the brush extends along the radial direction of the cover plate and is parallel to the cover plate, the bristles on the brush are elastically pressed on the cover plate, one end of the rotating shaft away from the air guide device is fixedly provided with a knob, and the knob can drive the brush to rotate relative to the cover plate.

[0007] Preferably, a semicircular arc block, two arc-shaped limiting plates and an elastic limiting assembly are fixedly arranged on the surface of the diesel engine main body around the air inlet of the air guide device, the outer portion of the cover plate is glued with a circular ring, a plug hole is formed in the radial direction of the circular ring, the circular ring is limited in the space formed by the two arc-shaped limiting plates, and the circular ring axially abuts against the arc-shaped protrusion at the middle position of the inner side arc surface of the arc-shaped limiting plate, the cover plate axially abuts against the semicircular arc block, and the plug rod of the elastic limiting assembly is elastically inserted into the plug hole.

[0008] Preferably, the semicircular arc block is made of sponge material and is fixed on the surface of the diesel engine main body by gluing.

[0009] Preferably, the inner arc surface of the arc-shaped limiting plate is glued with a non-slip pad.

[0010] Preferably, the non-slip pad is made of rubber.

[0011] Preferably, the two arc-shaped limiting plates are arranged at an interval of 90° in a ring direction, and one of the arc-shaped limiting plates is arranged opposite to the semicircular arc block.

[0012] Preferably, the elastic limiting assembly comprises a fixed plate, a sliding rod, a mounting plate and a spring, the fixed plate is fixed on the surface of the diesel engine body, the sliding rod is arranged on the fixed plate, the mounting plate is fixed on one end of the sliding rod facing the air guiding device, the inserting rod is fixed on the mounting plate, the spring is sleeved on the sliding rod and abuts against the fixed plate and the mounting plate, and the end of the sliding rod away from the air guiding device is a control end.

[0013] Preferably, the elastic limiting assembly further comprises a rotating plate and a placing frame, the rotating plate is fixed on the control end of the sliding rod, and the placing frame is fixed on the surface of the diesel engine body away from the rotating plate, when the rotating plate is limited in the placing frame, the inserting rod is completely removed from the insertion hole.

[0014] Compared with the prior art, the air-cooled diesel engine has the following beneficial effects:

[0015] The air-cooled diesel engine has the following beneficial effects:

[0016] In addition, when the air inlet hole is blocked due to long-time use of the cover plate, the cover plate can be removed, the brush can be driven to rotate relative to the cover plate by manually rotating the knob, and then the bristles on the brush can clean the air inlet hole, which is simple and convenient. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is the overall structure schematic diagram of the air-cooled diesel engine in the embodiment of the utility model.

[0018] Figure 2 is the local structure schematic diagram of the air-cooled diesel engine in the embodiment of the utility model.

[0019] Figure 3 is the structure schematic diagram of the air-cooled diesel engine after the cover plate is removed in the embodiment of the utility model.

[0020] Figure 4It is the brush side structure schematic view of the covering plate on the air-cooled diesel engine in the embodiment of the utility model.

[0021] Among them, the sign explanation is as follows:

[0022] 1, diesel engine main body 8, elastic limiting component

[0023] 2, air guide device 801, plug rod

[0024] 201, air inlet 802, fixed plate

[0025] 3, covering plate 803, sliding rod

[0026] 301, air inlet 804, mounting plate

[0027] 4, brush 805, spring

[0028] 5, knob 806, rotating plate

[0029] 6, semicircular block 807, placing frame

[0030] 7, arc limiting plate 9, ring

[0031] 701, arc convex 10, non-slip pad Specific embodiments

[0032] The specific embodiments of the utility model are further described in detail below in combination with the drawings.These embodiments are only used for describing the utility model, and not limit the utility model.

[0033] In the description of the utility model, it needs to be explained that the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as the limitation of the utility model.In addition, the terms "first", "second" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0034] In the description of the utility model, it is necessary to explain that, unless there is definite stipulation and limitation, the term "installation", "connection" should be broad sense understanding, for example, it can be fixed connection, also can be detachable connection, or integral type connection, it can be mechanical connection, also can be electrical connection, it can be direct connection, also can be indirect connection through intermediate medium, it can be the communication inside two elements, for ordinary skilled person in the art, the above-mentioned term can be understood according to the specific meaning in the utility model.

[0035] In addition, in the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise stated.

[0036] Referring to Figure 1 、 Figure 3 And Figure 4 , the embodiment provides a air-cooled diesel engine, including diesel engine main body 1, air guide device 2 and cover plate 3, air guide device 2 is installed on diesel engine main body 1 and is communicated with the fin inside diesel engine main body 1, cover plate 3 is round plate modeling and is uniformly distributed with multiple through air inlet hole 301, cover plate 3 is detachably covered at the air inlet 201 of air guide device 2, the central position of cover plate 3 is provided with a rotating shaft, the end of rotating shaft towards air guide device 2 is fixed with brush 4, brush 4 extends along the radial direction of cover plate 3 and keeps parallel with cover plate 3, the bristles on brush 4 are elastically pressed on cover plate 3, the end of rotating shaft away from air guide device 2 is fixed with knob 5, knob 5 can drive brush 4 to rotate relative to cover plate 3.

[0037] The air-cooled diesel engine of the embodiment can block the dust introduced into the inside of diesel engine main body 1 as much as possible when air guide device 2 is working, so that the dust does not adhere to air guide device 2 and the fin inside diesel engine main body 1, the air guide device 2 can maintain good air guiding effect for a long time, the fin can be cooled well, the damage of diesel engine main body 1 is reduced, and the service life of the air-cooled diesel engine is improved.

[0038] In addition, referring to Figure 1 And Figure 4 When the air inlet hole 301 is blocked due to long-time use of cover plate 3, the cover plate 3 can be removed, the brush 4 can be driven to rotate relative to the cover plate 3 by manually rotating the knob 5, and the dust on the air inlet hole 301 can be removed by the bristles on the brush 4, which is simple and convenient.

[0039] Preferably, referring to Figures 2 to 4The surface of the diesel engine body 1 is fixed with a semicircular block 6, two arc-shaped limiting plates 7 and an elastic limiting assembly 8 in a ring direction around the air inlet 201 of the air guide device 2, the outer part of the cover plate 3 is glued with a ring 9, the ring 9 is provided with a plug hole in a radial direction, the ring 9 is limited in the space formed by the two arc-shaped limiting plates 7, and the ring 9 is axially abutted with the arc-shaped protrusion 701 at the middle position of the inner arc surface of the arc-shaped limiting plate 7, the cover plate 3 is axially abutted with the semicircular block 6, and the plug rod 801 of the elastic limiting assembly 8 is elastically inserted into the plug hole.

[0040] The semicircular block 6 and the arc-shaped limiting plate 7 have the functions of positioning and dust prevention, when the cover plate 3 is installed, the position of the plug hole on the ring 9 is found first, then the positioning of the cover plate 3 is completed by keeping the plug hole opposite to the plug rod 801, and finally the installation of the cover plate 3 is completed by controlling the plug rod 801 of the elastic limiting assembly 8 to be elastically inserted into the plug hole.

[0041] Preferably, the semicircular block 6 is made of sponge material and is fixed on the surface of the diesel engine body 1 by gluing. The semicircular block 6 is made of sponge material, which can avoid damaging the surface of the diesel engine body 1 when the integrated structure of the cover plate 3 and the ring 9 is abutted on the semicircular block 6 and the arc-shaped protrusion 701.

[0042] Preferably, referring to Figure 2 The inner arc surface of the arc-shaped limiting plate 7 is glued with a non-slip pad 10. The setting of the non-slip pad 10 can increase the friction between the inner arc surface of the arc-shaped limiting plate 7 and the outer peripheral surface of the ring 9, improve the stability of the ring 9 when placed, and facilitate the installation of the cover plate 3 by the staff.

[0043] Preferably, the non-slip pad 10 is made of rubber material.

[0044] Preferably, referring to Figure 3 The two arc-shaped limiting plates 7 are arranged in a ring direction at an interval of 90°, and one of the arc-shaped limiting plates 7 is arranged opposite to the semicircular block 6.

[0045] Preferably, referring to Figure 2 The elastic limiting assembly 8 includes a fixed plate 802, a sliding rod 803, an installation plate 804 and a spring 805, the fixed plate 802 is fixed on the surface of the diesel engine body 1, the sliding rod 803 is provided on the fixed plate 802, the installation plate 804 is fixed on one end of the sliding rod 803 facing the air guide device 2, the plug rod 801 is fixed on the installation plate 804, the spring 805 is sleeved on the sliding rod 803 and abuts with the fixed plate 802 and the installation plate 804 at the same time, and one end of the sliding rod 803 away from the air guide device 2 is a control end.

[0046] When the cover plate 3 is installed or removed, the control end of the slide rod 803 is manually pulled to drive the insertion rod 801 to be separated from the insertion hole of the ring 9, thereby achieving the removal of the cover plate 3; and after the control end of the slide rod 803 is loosened, the insertion rod 801 is driven by the spring 805 to be re-inserted into the insertion hole of the ring 9, thereby achieving the installation of the cover plate 3.

[0047] Preferably, referring to Figure 2 , the elastic limiting assembly 8 further comprises a rotating plate 806 and a placing frame 807, the rotating plate 806 is fixed at the control end of the slide rod 803, the placing frame 807 is fixed on the surface of the diesel engine body 1 away from the rotating plate 806, and when the rotating plate 806 is limited in the placing frame 807, the insertion rod 801 is completely removed from the insertion hole.

[0048] When the cover plate 3 is installed, the rotating plate 806 can be manually moved into the placing frame 807 for limiting, so that the insertion rod 801 is completely removed from the insertion hole and is no longer driven by the spring 805 to slide, thereby facilitating the installation of the cover plate 3.

[0049] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and substitutions can be made, and these improvements and substitutions should also be considered as the protection scope of the present application.

Claims

1. An air-cooled diesel engine, characterized in that, The device includes a diesel engine body (1), an air guide device (2), and a cover plate (3). The air guide device (2) is installed on the diesel engine body (1) and communicates with the heat sink inside the diesel engine body (1). The cover plate (3) is a circular plate with multiple through air inlets (301) evenly distributed. The cover plate (3) is detachably covered at the air inlet (201) of the air guide device (2). A rotating shaft is inserted through the center of the cover plate (3). A brush (4) is fixed at one end of the rotating shaft facing the air guide device (2). The brush (4) extends radially along the cover plate (3) and is parallel to the cover plate (3). The bristles on the brush (4) are elastically pressed against the cover plate (3). A knob (5) is fixed at one end of the rotating shaft away from the air guide device (2). The knob (5) can drive the brush (4) to rotate relative to the cover plate (3).

2. The air-cooled diesel engine according to claim 1, characterized in that, The surface of the diesel engine body (1) is circumferentially fixed with a semi-circular block (6), two arc-shaped limiting plates (7), and an elastic limiting component (8) around the air inlet (201) of the air guide device (2). A ring (9) is glued to the outside of the cover plate (3). The ring (9) has a radially opened insertion hole. The ring (9) is limited within the space enclosed by the two arc-shaped limiting plates (7). The ring (9) abuts axially with the arc-shaped protrusion (701) at the middle position of the inner arc surface of the arc-shaped limiting plate (7). The cover plate (3) abuts axially with the semi-circular block (6). The insertion rod (801) on the elastic limiting component (8) is elastically inserted into the insertion hole.

3. The air-cooled diesel engine according to claim 2, characterized in that, The semi-circular block (6) is made of sponge material, and the semi-circular block (6) is fixed to the surface of the diesel engine body (1) by adhesive bonding.

4. The air-cooled diesel engine according to claim 2, characterized in that, The inner arc surface of the arc-shaped limiting plate (7) is glued with an anti-slip pad (10).

5. The air-cooled diesel engine according to claim 4, characterized in that, The anti-slip mat (10) is made of rubber.

6. The air-cooled diesel engine according to claim 2, characterized in that, The two arc-shaped limiting plates (7) are arranged at a 90° circumferential interval, and one of the arc-shaped limiting plates (7) is positioned directly opposite the semi-circular block (6).

7. The air-cooled diesel engine according to claim 2, characterized in that, The elastic limiting component (8) includes a fixing plate (802), a sliding rod (803), a mounting plate (804), and a spring (805). The fixing plate (802) is fixed to the surface of the diesel engine body (1). The sliding rod (803) passes through the fixing plate (802). The mounting plate (804) is fixed to one end of the sliding rod (803) facing the air guide device (2). The insert rod (801) is fixed to the mounting plate (804). The spring (805) is sleeved on the sliding rod (803) and simultaneously abuts against the fixing plate (802) and the mounting plate (804). The end of the sliding rod (803) away from the air guide device (2) is the control end.

8. The air-cooled diesel engine according to claim 7, characterized in that, The elastic limiting component (8) further includes a rotating plate (806) and a placement frame (807). The rotating plate (806) is fixed to the control end of the slide rod (803). The placement frame (807) is fixed away from the rotating plate (806) on the surface of the diesel engine body (1). When the rotating plate (806) is limited within the placement frame (807), the insertion rod (801) is completely removed from the insertion hole.

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