Air-cooled diesel engine cylinder head

Abstract

The utility model relates to the field of diesel engine cylinder heads, and discloses an air-cooled diesel engine cylinder head, including a cylinder head, wherein an anti-loosening assembly is arranged inside the cylinder head, and a positioning assembly is arranged on the lower surface of the cylinder head, wherein the anti-loosening assembly includes a positioning bolt, and the outer wall of the positioning bolt is threadedly connected to a cylinder body, and the inner wall of the cylinder head is elastically connected to a ring through a compression spring, and a clamping block is fixedly connected to the upper surface of the ring, and the anti-loosening assembly also includes a clamping slot, and the inner wall of the cylinder head is elastically connected to a stopper through a connecting spring. In the utility model, by arranging the anti-loosening assembly, when the positioning bolt reverses due to shaking, the clamping block will be squeezed, so that the clamping block and the ring move downward to squeeze the connecting spring, and under the push of the connecting spring, the clamping block and the ring will move upward to squeeze the clamping slot to rotate and tighten the positioning bolt, and the device solves the problem of the positioning bolt being loosened due to reverse rotation, and reduces safety hazards.

Description

Technical Field

[0001] The utility model relates to the field of diesel engine cylinder heads, in particular to an air-cooled diesel engine cylinder head. Background Art

[0002] An air-cooled diesel engine is an engine that uses compression-ignition fuel to self-ignite under high temperature and high pressure conditions to drive the movement of the piston. It is widely used in commercial vehicles, heavy machinery and equipment, generators and other fields. The diesel engine cylinder head is an important component of the diesel engine. It is located on the top of the cylinder block and is used to close the internal space of the cylinder and form a combustion chamber. The cylinder head is usually made of cast iron or aluminum alloy. The diesel engine cylinder head is generally installed on the cylinder block with bolts. After long-term use, the bolts may become loose. In order to avoid safety hazards caused by loose bolts, the diesel engine needs to be inspected and maintained regularly.

[0003] Although regular maintenance can greatly reduce the safety hazards caused by loose bolts, it is troublesome and requires a certain amount of money. In order to save maintenance costs, some truck drivers often do not inspect the engine for a long time, and the bolts are still easy to loosen, which poses a greater safety hazard. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides an air-cooled diesel engine cylinder head, aiming to improve the problem in the prior art that the engine is not overhauled for a long time, the bolts are easily reversed and loosened, and there are great safety hazards.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a cylinder head of an air-cooled diesel engine, comprising a cylinder head, an anti-loosening component is arranged inside the cylinder head, a positioning component is arranged on the lower surface of the cylinder head, the anti-loosening component comprises a positioning bolt, the outer wall of the positioning bolt is threadedly connected to the cylinder body, the inner wall of the cylinder head is elastically connected to a ring via a compression spring, and a clamping block is fixedly connected to the upper surface of the ring.

[0006] As a further description of the above technical solution:

[0007] The anti-loosening assembly also includes a slot, and the inner wall of the cylinder cover is elastically connected with a stopper via a connecting spring.

[0008] As a further description of the above technical solution:

[0009] The positioning assembly comprises a positioning column, an annular groove is formed on the outer wall of the positioning column, a positioning hole is formed on the upper surface of the cylinder body, and a rubber ring is fixedly connected to the inner wall of the front side of the positioning hole.

[0010] As a further description of the above technical solution:

[0011] The upper surface of the positioning column is fixedly connected to the lower surface of the cylinder head, the positioning column is inserted into the inner wall of the positioning hole, and the rubber ring is inserted into the inner wall of the annular groove.

[0012] As a further description of the above technical solution:

[0013] The positioning bolt is threadedly connected to the upper surface of the cylinder head, the ring is slidably connected to the inner wall of the cylinder head, one end of the compression spring is fixedly connected to the lower surface of the ring, and the other end of the compression spring is fixedly connected to the inner wall of the bottom end of the cylinder head.

[0014] As a further description of the above technical solution:

[0015] The clamping groove is formed on the lower surface of the positioning bolt, and the upper surface of the clamping block is provided with an arc surface, and the clamping groove is formed in an arc shape.

[0016] As a further description of the above technical solution:

[0017] The clamping blocks are inserted into the inner wall of the clamping slots, the clamping blocks are provided in multiple groups, the clamping slots are provided in multiple groups, and the multiple groups of clamping blocks and clamping slots are arranged in a circular array with the positioning bolt at the center of the circle as the origin.

[0018] As a further description of the above technical solution:

[0019] The stopper is slidably connected to the inner wall of the cylinder head, one end of the connecting spring is fixedly connected to the left surface of the stopper, the other end of the connecting spring is fixedly connected to the inner wall on the left side of the cylinder head, the upper surface of the stopper is set as an inclined surface, and the lower surface of the stopper is set as an inclined surface.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the utility model, through the cooperation of the positioning bolt, compression spring, ring, block, connecting spring, block and slot, the positioning bolt will squeeze the block when it shakes and reverses, so that the block and the ring move downward to squeeze the connecting spring. Under the push of the connecting spring, the block and the ring will move upward to squeeze the slot to rotate and tighten the positioning bolt. This device solves the problem of the positioning bolt loosening due to reverse rotation and reduces safety hazards.

[0022] 2. In the utility model, through the cooperation of the positioning column, the rubber ring, the positioning hole and the annular groove, the cylinder head can be initially installed on the cylinder block, and the threaded holes on the cylinder head and the cylinder block can be aligned, which facilitates the installation of the bolts, reduces the time spent on installing the bolts, and improves the installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a front view schematic diagram of the three-dimensional structure of the overall device in the utility model;

[0024] Figure 2 It is a schematic diagram of the disassembly of the three-dimensional structure of the overall device in the utility model;

[0025] Figure 3 It is a schematic cross-sectional diagram of the three-dimensional structure of the cylinder body and the positioning column in the utility model;

[0026] Figure 4 It is a cross-sectional schematic diagram of the three-dimensional structure of the cylinder head and the positioning bolt in the utility model;

[0027] Figure 5 It is a bottom view schematic diagram of the three-dimensional structure of the positioning bolt in the utility model.

[0028] Legend:

[0029] 1. Cylinder head; 2. Cylinder body; 31. Positioning column; 32. Rubber ring; 301. Positioning hole; 302. Annular groove; 41. Positioning bolt; 42. Compression spring; 43. Ring; 44. Block; 45. Connecting spring; 46. Stopper; 401. Slot. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Reference Figure 1 , Figure 4 , the utility model provides an embodiment: an air-cooled diesel engine cylinder head, including a cylinder head 1, an anti-loosening component is arranged inside the cylinder head 1, the anti-loosening component can prevent the positioning bolt 41 from reversing and loosening, a positioning component is arranged on the lower surface of the cylinder head 1, the anti-loosening component includes a positioning bolt 41, the positioning bolt 41 is used to connect the cylinder head 1 and the cylinder body 2, the cylinder head 1 and the cylinder body 2 in the utility model are used on an air-cooled diesel engine, the outer wall of the positioning bolt 41 is threadedly connected with the cylinder body 2, the cylinder head 1 and the cylinder body 2 are prior art, and can be implemented by technicians in this field. Since it is prior art, it will not be described in detail in this case. The cylinder head 1 is installed above the cylinder body 2, and the inner wall of the cylinder head 1 is elastically connected with a ring 43 through a compression spring 42, and a clamping block 44 is fixedly connected to the upper surface of the ring 43, and the ring 43 and the clamping block 44 will move synchronously.

[0032] Reference Figure 1 , Figure 4 , Figure 5The anti-loosening assembly also includes a slot 401 , the slot 401 and the block 44 are matched in shape and size, and the inner wall of the cylinder head 1 is elastically connected with a block 46 through a connecting spring 45 .

[0033] Reference Figure 1 - Figure 3 The positioning assembly includes a positioning column 31, an annular groove 302 is opened on the outer wall of the positioning column 31, a positioning hole 301 is opened on the upper surface of the cylinder body 2, multiple groups of positioning columns 31 are provided, and multiple groups of positioning holes 301 are opened. The multiple groups of positioning columns 31 and the multiple groups of positioning holes 301 are aligned, and the shapes and sizes of the positioning columns 31 and the positioning holes 301 match. A rubber ring 32 is fixedly connected to the inner wall of the front side of the positioning hole 301, and the shapes and sizes of the rubber ring 32 and the annular groove 302 match.

[0034] Reference Figure 1 - Figure 3 The upper surface of the positioning column 31 is fixedly connected to the lower surface of the cylinder head 1, and the cylinder head 1 and the positioning column 31 will move synchronously. The positioning column 31 is inserted into the inner wall of the positioning hole 301, and the threaded holes on the cylinder head 1 and the cylinder body 2 can be aligned. When the positioning column 31 is inserted into the positioning hole 301, the rubber ring 32 will be squeezed, and the rubber ring 32 will be deformed due to the squeezing, and the rubber ring 32 will be inserted into the inner wall of the annular groove 302.

[0035] Reference Figure 1 , Figure 4 The positioning bolt 41 passes through the threaded connection on the upper surface of the cylinder head 1, the ring 43 is slidably connected to the inner wall of the cylinder head 1 and slides longitudinally, one end of the compression spring 42 is fixedly connected to the lower surface of the ring 43, and the other end of the compression spring 42 is fixedly connected to the inner wall of the bottom end of the cylinder head 1. When the ring 43 moves downward, it squeezes the compression spring 42 to generate a reaction force.

[0036] Reference Figure 1 , Figure 4 , Figure 5 The slot 401 is formed on the lower surface of the positioning bolt 41 , and the upper surface of the clamping block 44 is provided with an arc surface, and the slot 401 is formed in an arc shape.

[0037] Reference Figure 1 , Figure 4 , Figure 5The block 44 is inserted into the inner wall of the slot 401. After the positioning bolt 41 is installed, the slot 401 will be aligned with the block 44. When the positioning bolt 41 is shaken and reversed, it will squeeze the arc surface of the block 44. The squeezing of the block 44 will drive the ring 43 to move downward to squeeze the compression spring 42 to produce a reaction force. The amplitude of the reversal caused by the shaking is limited. Under the push of the reaction force of the compression spring 42, the ring 43 and the block 44 will move upward. When the block 44 squeezes the slot 401, the positioning bolt 41 rotates to tighten the positioning bolt 41. There are multiple groups of blocks 44, and there are multiple groups of slots 401. The multiple groups of blocks 44 and the slots 401 are arranged in a circular array with the positioning bolt 41 at the center of the circle as the origin.

[0038] Reference Figure 1 , Figure 4 , Figure 5 The stopper 46 is slidably connected to the inner wall of the cylinder head 1 and slides laterally. One end of the connecting spring 45 is fixedly connected to the left surface of the stopper 46, and the other end of the connecting spring 45 is fixedly connected to the inner wall on the left side of the cylinder head 1. When the stopper 46 moves to the left, it will squeeze the connecting spring 45 to generate a reaction force. The upper surface of the stopper 46 is set as an inclined surface, and the lower surface of the stopper 46 is set as an inclined surface. When the inclined surface of the stopper 46 is squeezed, the stopper 46 will move to the left.

[0039] Working principle: When the device is used, the positioning column 31 and the positioning hole 301 are first plugged in. During the process of the positioning column 31 being plugged in the positioning hole 301, the rubber ring 32 will be squeezed to deform the rubber ring 32. The deformed rubber ring 32 will release the obstruction to the positioning column 31. When the positioning column 31 and the positioning hole 301 are plugged in, the rubber ring 32 will position the positioning column 31 due to its own elastic recovery and the plugging of the annular groove 302. In the absence of external force, the positioning column 31 and the cylinder head 1 will be stabilized on the cylinder body 2, and at this time, the threaded holes on the cylinder head 1 and the cylinder body 2 will be aligned.

[0040] Then tighten the positioning bolt 41. When the positioning bolt 41 is tightened, it will squeeze the upper surface of the block 46, causing the block 46 to move to the left and retract into the cylinder head 1 to release the obstruction to the positioning bolt 41. When the positioning bolt 41 is installed, the squeezing of the block 46 will be released, and the block 46 will move to the right under the push of the connecting spring 45 to block the positioning bolt 41. When the positioning bolt 41 is tightened, the cylinder head 1 and the cylinder body 2 will be fixed together, and the slot 401 will be plugged into the block 44.

[0041] During the operation of the device, jitter will occur, and the jitter can easily cause the positioning bolt 41 to reverse. The reversed positioning bolt 41 will drive the slot 401 to move and squeeze the arc surface of the block 44. When the block 44 is squeezed, it will drive the ring 43 to move downward. The downward moving ring 43 will squeeze the compression spring 42 to generate a reaction force. Under the influence of the reaction force of the compression spring 42, the ring 43 and the block 44 will move upward. The upward moving block 44 will squeeze the slot 401 to tighten the positioning bolt 41 in the forward direction to ensure the stability of the device.

[0042] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An air-cooled diesel engine cylinder head, comprising a cylinder head (1), characterized in that: An anti-loosening component is arranged inside the cylinder head (1), and a positioning component is arranged on the lower surface of the cylinder head (1). The anti-loosening component comprises a positioning bolt (41), the outer wall of the positioning bolt (41) is threadedly connected to the cylinder body (2), the inner wall of the cylinder head (1) is elastically connected to a ring (43) via a compression spring (42), and the upper surface of the ring (43) is fixedly connected to a clamping block (44).

2. The air-cooled diesel engine cylinder head according to claim 1, characterized in that: The anti-loosening assembly further comprises a clamping groove (401), and the inner wall of the cylinder head (1) is elastically connected to a stopper (46) via a connecting spring (45).

3. The air-cooled diesel engine cylinder head according to claim 1, characterized in that: The positioning assembly comprises a positioning column (31), the outer wall of the positioning column (31) is provided with an annular groove (302), the upper surface of the cylinder body (2) is provided with a positioning hole (301), and the inner wall of the front side of the positioning hole (301) is fixedly connected with a rubber ring (32).

4. The air-cooled diesel engine cylinder head according to claim 3, characterized in that: The upper surface of the positioning column (31) is fixedly connected to the lower surface of the cylinder head (1), the positioning column (31) is inserted into the inner wall of the positioning hole (301), and the rubber ring (32) is inserted into the inner wall of the annular groove (302).

5. The air-cooled diesel engine cylinder head according to claim 1, characterized in that: The positioning bolt (41) is threadedly connected to the upper surface of the cylinder head (1), the circular ring (43) is slidably connected to the inner wall of the cylinder head (1), one end of the compression spring (42) is fixedly connected to the lower surface of the circular ring (43), and the other end of the compression spring (42) is fixedly connected to the inner wall of the bottom end of the cylinder head (1).

6. The air-cooled diesel engine cylinder head according to claim 2, characterized in that: The clamping groove (401) is provided on the lower surface of the positioning bolt (41), the upper surface of the clamping block (44) is provided with an arc surface, and the clamping groove (401) is provided in an arc shape.

7. The air-cooled diesel engine cylinder head according to claim 2, characterized in that: The clamping blocks (44) are inserted into the inner wall of the clamping slot (401), the clamping blocks (44) are provided in multiple groups, the clamping slots (401) are provided in multiple groups, and the multiple groups of clamping blocks (44) and the clamping slots (401) are arranged in a circular array with the positioning bolt (41) at the center of the circle as the origin.

8. The air-cooled diesel engine cylinder head according to claim 2, characterized in that: The stopper (46) is slidably connected to the inner wall of the cylinder head (1), one end of the connection spring (45) is fixedly connected to the left surface of the stopper (46), the other end of the connection spring (45) is fixedly connected to the inner wall on the left side of the cylinder head (1), the upper surface of the stopper (46) is arranged as an inclined surface, and the lower surface of the stopper (46) is arranged as an inclined surface.

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