Stable heat dissipation type diesel engine cylinder cover

Abstract

The utility model discloses a stable heat dissipation type diesel engine cylinder cover which comprises a cylinder body connecting piece, a cylinder cover body is installed at the upper end of the cylinder body connecting piece, a plurality of connecting blocks are fixedly connected to the outer surface of the cylinder body connecting piece and the outer surface of the cylinder cover body in an annular array mode, and the connecting blocks on the cylinder body connecting piece correspond to the connecting blocks on the cylinder cover body. Connecting bolts are installed on the upper surfaces of the multiple connecting blocks on the cylinder cover in a threaded mode, the lower ends of the multiple connecting bolts penetrate into the multiple connecting blocks on the cylinder body connecting piece in a threaded mode, the auxiliary stabilizing mechanism is arranged on the cylinder cover, and a stabilizing plate is arranged and a rectangular plate is inserted into rectangular grooves of the connecting bolts; the circumferential rotation of the bolt is directly limited, when vibration is generated during operation of an engine, the connecting bolt cannot rotate due to torque fluctuation, looseness of a thread pair is avoided, the looseness time of the connecting bolt is delayed, the detection frequency of the engine is reduced, and therefore the use efficiency of the diesel engine is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to diesel engine technical field, concretely is heat dissipation type diesel engine cylinder cover. BACKGROUND

[0002] Heat dissipation type diesel engine is divided into air-cooled diesel engine and water-cooled diesel engine, is the internal combustion engine through compression diesel oil and air mixture realizes ignition, with diesel oil as fuel, has high reliability and economyality.Its working principle is: intake stroke inhales air, compression stroke compresses air and heats, injector is sprayed into diesel oil when approaching the end, mixed gas spontaneous combustion promotes piston to do work, finally exhaust stroke discharges exhaust gas, low speed torque is big, is suitable for heavy load transport and engineering machinery;Compression ratio is high, thermal efficiency reaches 35%-45%, fuel cost is lower than gasoline engine;There is no spark plug and other wearing parts, and the service life of partial model can reach more than one million kilometers, is widely used in ship, generator set, excavator (non-road) etc.Field, especially in the scene that needs to continuously high load power, outstanding performance.Due to the existence of relatively large noise, cold start difficulty etc.Defects, but through turbocharging, common rail injection etc.Technology optimization, its performance and environmental protection performance are continuously improved, and it is still one of the core power of industry, transportation field.

[0003] At present, during the use of diesel engine, cylinder cover needs to be used to close the upper part of cylinder, is connected with cylinder body through bolt, under normal use and maintenance condition, the bolt at the connecting place usually does not loosen easily, but when diesel engine experiences long-term high load operation, extreme working condition or improper maintenance, the bolt may loosen or fail, such as when diesel engine runs, the burst pressure in cylinder will make the bolt bear periodic tensile load, simultaneously combustion vibration, accessory transmission vibration can cause bolt transverse vibration, cause the friction between screw thread pair to drop, gradually loosen, need to carry out frequent maintenance, make downtime more frequent, influence the use of diesel engine. UTILITY MODEL CONTENTS

[0004] In view of the defects of prior art, the utility model provides stable heat dissipation type diesel engine cylinder cover, solves the problem that when diesel engine experiences long-term high load operation, extreme working condition or improper maintenance, the bolt may loosen or fail, such as when diesel engine runs, the burst pressure in cylinder will make the bolt bear periodic tensile load, simultaneously combustion vibration, accessory transmission vibration can cause bolt transverse vibration, cause the friction between screw thread pair to drop, gradually loosen, need to carry out frequent maintenance, make downtime more frequent, influence the use of diesel engine.

[0005] To achieve the above object, the utility model provides the following technical scheme: Stable heat dissipation type diesel engine cylinder cover, including cylinder connecting piece, the upper end of cylinder connecting piece is installed with cylinder cover, the outer surface of cylinder connecting piece and cylinder cover is fixedly connected with a plurality of connecting blocks in annular array, a plurality of connecting blocks on cylinder connecting piece all with a plurality of connecting blocks on cylinder cover correspond, the upper surface of a plurality of connecting blocks on cylinder cover all are installed with connecting bolt, and the lower end of a plurality of connecting bolts is respectively threaded to the inside of a plurality of connecting blocks on cylinder connecting piece,

[0006] Auxiliary stabilizing mechanism, auxiliary stabilizing mechanism sets up on cylinder cover, auxiliary stabilizing mechanism includes stabilizing plate and four rectangle plates, stabilizing plate fixed mounting is installed on the upper surface of four connecting blocks of cylinder cover right surface fixed connection, the lower surface of stabilizing plate corresponds four connecting blocks position all are equipped with hexagonal slot, corresponding four connecting bolts upper end is slidably inserted with the inside of four hexagonal slots, four rectangle plates are fixedly connected on the upper inner wall of four hexagonal slots, the upper surface of four connecting bolts all are equipped with rectangle slot, four rectangle plates are slidably inserted with the inside of four rectangle slots, and the right surface of cylinder connecting piece is fixedly installed with mounting block.

[0007] Preferably, the auxiliary stabilizing mechanism further comprises a positioning block fixedly installed on the lower surface of the stabilizing plate, the upper surface of the mounting block is provided with a positioning slot, and the positioning block is slidably inserted into the positioning slot.

[0008] Preferably, the upper surface of the stabilizing plate is provided with a threaded hole, the lower end of the threaded hole is rotatably penetrated into the lower surface of the mounting block, and a bolt is threadedly installed in the inside of the threaded hole.

[0009] Preferably, the number of the auxiliary stabilizing mechanisms is four, and the four auxiliary stabilizing mechanisms are annularly arranged on the circumferential surfaces of the cylinder connecting piece and the cylinder cover.

[0010] Preferably, the outer surfaces of the connecting bolts are all provided with rubber pads at the upper ends.

[0011] Preferably, the upper surfaces of the four stabilizing plates are all provided with two mounting slots, and eight circular rods are fixedly installed in the inside of the eight mounting slots.

[0012] Compared with the prior art, the utility model provides a stable heat dissipation type diesel engine cylinder cover, which has the following beneficial effects: through the arrangement of the stabilizing plate and the insertion of the rectangle plate into the rectangle slot of the connecting bolt, the circumferential rotation of the bolt is directly limited, when the engine runs and vibrates, the connecting bolt cannot self-rotate due to torque fluctuation, the threaded pair is prevented from loosening, the time of loosening of the connecting bolt is delayed, the detection frequency of the engine is reduced, and therefore the use efficiency of the diesel engine is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1The utility model discloses a stable heat dissipation type diesel engine cylinder cover whole overhead structure schematic diagram shows,

[0014] Figure 2 The utility model discloses a stable heat dissipation type diesel engine cylinder cover internal cutaway side structure schematic diagram shows,

[0015] Figure 3 The utility model discloses an auxiliary stabilizing mechanism internal cutaway side structure schematic diagram shows,

[0016] Figure 4 The utility model discloses a stable plate cutaway structure schematic diagram.

[0017] In the drawing: 1, cylinder connecting piece, 2, cylinder cover, 3, connecting block, 4, connecting bolt, 5, stable plate, 6, rectangular plate, 7, hexagonal groove, 8, rectangular groove, 9, mounting block, 10, positioning block, 11, positioning groove, 12, threaded hole, 13, bolt, 14, rubber pad, 15, mounting groove, 16, round rod. Specific implementation

[0018] Below, this utility model embodiment will be combined with the drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, obviously, the described embodiment only is a part of embodiment of this utility model, but is not all the embodiment. Based on the embodiment in this utility model, all other embodiments that the person of ordinary skill in the art obtains without making the creative labor belong to the scope of this utility model protection.

[0019] Please refer to Figures 1-4 The utility model provides new technical scheme: stable heat dissipation type diesel engine cylinder cover, including cylinder connecting piece 1, the upper end of cylinder connecting piece 1 is installed with cylinder cover 2, and the outer surface of cylinder connecting piece 1 and cylinder cover 2 is annular array fixed connection with multiple connecting blocks 3, and the multiple connecting blocks 3 on cylinder connecting piece 1 all correspond with the multiple connecting blocks 3 on cylinder cover 2, and the upper surface of the multiple connecting blocks 3 on cylinder cover 2 is all screw thread installation with connecting bolt 4, and the lower end of multiple connecting bolts 4 is respectively screw thread and is penetrated to the inside of multiple connecting blocks 3 on cylinder connecting piece 1;

[0020] Auxiliary stabilizing mechanism, auxiliary stabilizing mechanism sets up on cylinder cover 2, and auxiliary stabilizing mechanism includes stable plate 5 and four rectangular plates 6, and stable plate 5 is fixedly installed on the upper surface of four connecting blocks 3 fixedly connected to the right surface of cylinder cover 2, and the lower surface of stable plate 5 is all set up with hexagonal groove 7 in the position corresponding four connecting blocks 3, and the upper end of corresponding four connecting bolts 4 is respectively slidably inserted with the inside of four hexagonal grooves 7, and four rectangular plates 6 are respectively fixedly connected on the upper inner wall of four hexagonal grooves 7, and the upper surface of four connecting bolts 4 is all set up with rectangular groove 8, and four rectangular plates 6 are respectively slidably inserted with the inside of four rectangular grooves 8, and the right surface of cylinder connecting piece 1 is fixedly installed with mounting block 9.

[0021] Further, the auxiliary stabilizing mechanism further comprises a positioning block 10 fixedly installed on the lower surface of the stabilizing plate 5, the upper surface of the mounting block 9 is provided with a positioning groove 11, and the positioning block 10 is slidably inserted into the positioning groove 11.

[0022] Further, by inserting the rectangular plate 6 of the stabilizing plate 5 into the rectangular groove 8 of the connecting bolt 4, the circumferential rotation of the connecting bolt 4 is directly limited, when the engine operates and generates vibration, the connecting bolt 4 cannot rotate due to torque fluctuation, avoiding loosening of the threaded pair, delaying the loosening time of the connecting bolt 4, reducing the detection frequency of the engine, thereby improving the use efficiency of the diesel engine.

[0023] Further, the upper surface of the stabilizing plate 5 is provided with a threaded hole 12, the lower end of the threaded hole 12 is rotatably penetrated to the lower surface of the mounting block 9, and the threaded hole 12 is internally threaded with a bolt 13.

[0024] Further, the number of auxiliary stabilizing mechanisms is four, and the four auxiliary stabilizing mechanisms are arranged in an annular array on the peripheral surface of the cylinder connecting piece 1 and the cylinder cover 2.

[0025] Further, the outer surface of the plurality of connecting bolts 4 is provided with a rubber pad 14.

[0026] Further, the upper surface of the four stabilizing plates 5 is provided with two mounting grooves 15, and the eight mounting grooves 15 are internally fixedly installed with a round rod 16.

[0027] Further, align the cylinder cover 2 with the cylinder connecting piece 1, thread the connecting bolt 4 on each connecting block 3 of the cylinder cover 2, make the lower end of the bolt penetrate the connecting block 3 of the cylinder cover 2 and insert into the threaded hole of the corresponding connecting block 3 of the cylinder connecting piece 1, first tighten all connecting bolts 4 with a hand wrench, ensure that the cylinder cover 2 is connected with the cylinder connecting piece 1, then take the stabilizing plate 5, align the hexagonal groove 7 on the lower surface of the stabilizing plate 5 with the upper end of the four connecting bolts 4 on the right surface of the cylinder cover 2, make the bolt 4 insert into the hexagonal groove 7, the four rectangular plates 6 of the stabilizing plate 5 correspondingly insert into the rectangular grooves 8 on the upper surface of the connecting bolts 4, at this time the rectangular plate 6 and the rectangular groove 8 are in sliding fit, limiting the circumferential rotation of the connecting bolt 4, the positioning block 10 on the lower surface of the stabilizing plate 5 inserts into the positioning groove 11 of the mounting block 9, through the sliding insertion of the positioning block and the positioning groove, the position of the stabilizing plate 5 is accurate, avoiding shaking, the bolt 13 is inserted from the threaded hole 12 on the upper surface of the stabilizing plate 5, the bolt 13 is threaded downward to the lower surface of the mounting block 9, the bolt 13 is tightened, the stabilizing plate 5 is fixed on the mounting block 9, at the same time, the upper end of the connecting bolt 4 is pressed downward by the stabilizing plate 5, enhancing the axial stability, the remaining three auxiliary stabilizing mechanisms (a total of four, annular array distribution) are installed around the cylinder connecting piece 1 and the cylinder cover 2, ensuring that the circumferential stress is uniform.

[0028] Structure Description: Cylinder connecting piece 1: Connects cylinder head 2 and engine cylinder, and the connecting block 3 provides a mounting base for the connecting bolt 4 to ensure the installation positioning and structural stability of the cylinder head;

[0029] Cylinder head 2: Closes the upper part of the cylinder and forms a combustion chamber, integrates the air distribution and oil injection systems, and is fastened to the cylinder connecting piece 1 through the connecting bolt 4 to ensure normal operation of the engine;

[0030] Connecting block 3: Distributed in a ring array on the outer surfaces of the cylinder connecting piece 1 and the cylinder head 2, serving as a mounting carrier for the connecting bolt 4 to enhance the stability and reliability of the connection between the two;

[0031] Connecting bolt 4: Threaded through the connecting block 3 of the cylinder head 2 and the cylinder connecting piece 1, rigidly connecting the two and providing fastening force to ensure sealing and structural strength;

[0032] Stabilizing plate 5: A total of four are provided, installed on the connecting block 3, with a hexagonal slot 7 and a rectangular plate 6 to constrain the connecting bolt 4, fixed with the bolt 13 to reduce the impact of vibration on the connecting bolt 4;

[0033] Rectangular plate 6: A total of sixteen are provided, slidingly inserted into the rectangular slot 8 on the connecting bolt 4 to limit the circumferential rotation of the connecting bolt 4, enhancing the stability of the connection and preventing loosening;

[0034] Hexagonal slot 7: Slidingly inserted into the upper end of the connecting bolt 4, providing axial limiting for the connecting bolt 4 under the action of the stabilizing plate 5 to improve its anti-vibration capability;

[0035] Rectangular slot 8: Opened on the upper surface of the connecting bolt 4, cooperating with the rectangular plate 6 to constrain the connecting bolt 4 from the circumferential direction, reducing the risk of loosening caused by vibration;

[0036] Mounting block 9: A total of four are provided, fixed to the right surface of the cylinder connecting piece 1, connected with the stabilizing plate 5 through the positioning block 10 and the bolt 13 to assist in stabilizing the connecting bolt 4;

[0037] Positioning block 10: A total of four are provided, installed on the lower surface of the stabilizing plate 5, slidingly inserted into the positioning slot 11 of the mounting block 9 to accurately position the stabilizing plate 5 and ensure its installation position;

[0038] Positioning slot 11: A total of four are provided, located on the upper surface of the mounting block 9, cooperating with the positioning block 10 to limit the displacement of the stabilizing plate 5 and enhance the overall stability of the auxiliary stabilizing mechanism;

[0039] Threaded hole 12: A total of four are provided, penetrating the stabilizing plate 5 and the mounting block 9, used for installing the bolt 13 to fix the stabilizing plate 5 on the mounting block 9 and stabilize the connecting bolt 4;

[0040] Bolt 13: a total of four are provided, mounted in the threaded hole 12, fasten the stabilizing plate 5 and mounting block 9, so that the stabilizing plate 5 effectively play a stabilizing role on the connecting bolt 4;

[0041] Rubber pad 14: set on the outer surface of the connecting bolt 4 top, buffer vibration, reduce the axial stress of the connecting bolt 4, delay its loose, improve the sealing performance;

[0042] Mounting groove 15: set in the upper surface of the stabilizing plate 5, for fixing the round bar 16;

[0043] Round bar 16: fixed in the mounting groove 15, for the convenience of maintenance, the stabilizing plate 5 is taken down.

[0044] Although the embodiments of the utility model have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A stable heat dissipation type diesel engine cylinder cover, comprising a cylinder connecting piece (1), the upper end of the cylinder connecting piece (1) is provided with a cylinder cover (2), a plurality of connecting blocks (3) are fixedly connected in an annular array on the outer surface of the cylinder connecting piece (1) and the cylinder cover (2), and the plurality of connecting blocks (3) on the cylinder connecting piece (1) correspond to the plurality of connecting blocks (3) on the cylinder cover (2), characterized in that: The upper surface of the plurality of connecting blocks (3) on the cylinder cover (2) is threadedly installed with connecting bolts (4), and the lower ends of the plurality of connecting bolts (4) are respectively threadedly penetrated into the interiors of the plurality of connecting blocks (3) on the cylinder connecting piece (1); ​ The auxiliary stabilizing mechanism is arranged on the cylinder cover (2), and the auxiliary stabilizing mechanism comprises a stabilizing plate (5) and four rectangular plates (6). The stabilizing plate (5) is fixedly installed on the upper surfaces of the four connecting blocks (3) fixedly connected to the right surface of the cylinder cover (2). The lower surface of the stabilizing plate (5) is provided with a hexagonal groove (7) corresponding to the positions of the four connecting blocks (3). The upper ends of the corresponding four connecting bolts (4) are respectively and slidably inserted into the interiors of the four hexagonal grooves (7). The four rectangular plates (6) are respectively fixedly connected to the inner walls of the four hexagonal grooves (7). The upper surfaces of the four connecting bolts (4) are respectively provided with a rectangular groove (8). The four rectangular plates (6) are respectively and slidably inserted into the interiors of the four rectangular grooves (8). The right surface of the cylinder connecting piece (1) is fixedly installed with a mounting block (9).

2. The stable and heat dissipating diesel engine cylinder head according to claim 1, characterized in that: The auxiliary stabilizing mechanism further comprises a positioning block (10) fixedly installed on the lower surface of the stabilizing plate (5). The upper surface of the mounting block (9) is provided with a positioning groove (11). The positioning block (10) is slidably inserted into the interior of the positioning groove (11).

3. The stable and heat dissipating diesel engine cylinder head according to claim 2, characterized in that: The upper surface of the stabilizing plate (5) is provided with a threaded hole (12) rotatably penetrated into the lower surface of the mounting block (9). The interior of the threaded hole (12) is threadedly installed with a bolt (13).

4. The stable and heat dissipating diesel engine cylinder head according to claim 1, characterized in that: The number of the auxiliary stabilizing mechanisms is four. The four auxiliary stabilizing mechanisms are arranged in an annular array on the peripheral surfaces of the cylinder connecting piece (1) and the cylinder cover (2).

5. The stable and heat dissipating diesel engine cylinder head according to claim 1, characterized in that: The outer surfaces of the plurality of connecting bolts (4) are respectively and outwardly provided with rubber pads (14).

6. The stable and heat dissipating diesel engine cylinder head according to claim 1, characterized in that: The upper surfaces of the four stabilizing plates (5) are respectively provided with two mounting grooves (15). The interiors of the eight mounting grooves (15) are respectively and fixedly installed with round rods (16).

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