Dismounting seat for intake and exhaust cylinder head of engine

Abstract

The utility model relates to an engine intake and exhaust cylinder head dismounting seat which comprises a seat body and a cylinder head body, the seat body is provided with at least one operation channel matched with a bolt assembly in shape, and the side face of the seat body is further provided with an operation hole communicated with the operation channel. The cylinder head body is provided with a plurality of sets of bolt assemblies, the supporting face of the base body is located on the end face of the cylinder head body, and the bolt assemblies are located in an operation channel of the base body. The cylinder head is reasonable in structural design, the stable supporting effect can be achieved through the end face of the cylinder head body by using the base body, the tensioner is installed on the base body, the bottom of the tensioner is effectively and reliably supported, the stability of the installing structure of the tensioner can be guaranteed, safety guarantee is formed for disassembling operation of a bolt assembly, and the working efficiency is improved. And the personal safety of operators is also ensured.

Description

Technical Field

[0001] The utility model relates to the field of engine supporting tool equipment, in particular to a disassembly seat for an engine intake and exhaust cylinder head. Background Technique

[0002] The shipbuilding industry in China has developed rapidly, and the accompanying demands have increased year by year. Especially for the overhaul work of engines, due to the narrow working space inside the ship, large-scale operation equipment cannot enter the equipment cabin of the ship, which limits the volume of the operation equipment.

[0003] Moreover, during the overhaul of the engine intake and exhaust cylinder head, it is necessary to remove its bolt assembly. Since the size and weight of the bolt assembly far exceed the limit of single-person operation, some tools are needed to complete the work. However, during the design process of the engine product, considering the space problem, the shape of the engine meets its basic needs without extra space, resulting in certain operation difficulties in applying tools during later maintenance or installation. Especially for the assembly of the stretcher, due to the lack of sufficient support at the bottom of the stretcher, the displayed value does not match the actual value, which affects the disassembly operation of the bolt assembly and also poses certain safety hazards. Content of the Utility Model

[0004] In order to solve the deficiencies in the prior art, the utility model provides a disassembly seat for an engine intake and exhaust cylinder head, which can ensure the stability of the installation structure of the stretcher and form a safety guarantee for the disassembly operation of the bolt assembly.

[0005] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0006] A disassembly seat for an engine intake and exhaust cylinder head, including a seat body, characterized in that: at least one operation channel matching the shape of the bolt assembly is provided on the seat body, and an operation hole communicating with the operation channel is further provided on the side surface of the seat body.

[0007] There are two of the operation channels, which are symmetrically distributed on both sides of the seat body.

[0008] The bottom surface of the seat body is a support surface matching the shape of the cylinder head body.

[0009] A positioning seat matching the shape of the stretcher is further provided on the top surface of the seat body, and the stretcher is arranged on the seat body through the positioning seat.

[0010] The positioning seat is of an annular structure and is located at the opening edge of the operation channel of the seat body.

[0011] The positioning seat and the seat body are of an integral structure.

[0012] The operation holes are horizontally distributed long holes, and the height of the operation holes matches the nut operation position of the bolt assembly.

[0013] The seat body is made of metal material, and its surface is provided with a corrosion-resistant protective layer.

[0014] It further includes a cylinder head body, on which there are multiple groups of bolt assemblies. The supporting surface of the seat body is located on the end face of the cylinder head body, and the bolt assemblies are located in the operation channels of the seat body.

[0015] The bolt assemblies of the cylinder head body include four groups located at the four corners. There are two operation channels in the seat body. The seat body is placed horizontally or vertically on the cylinder head body, and the corresponding two groups of bolt assemblies are respectively located in the two operation channels of the same seat body.

[0016] The beneficial effects of the present utility model are as follows: The structure is reasonably designed. By using this seat body, a stable supporting effect can be formed by the end face of the cylinder head body. An expander is installed on the seat body, and the bottom of the expander can be effectively and reliably supported, which can ensure the stability of the installation structure of the expander, form a safety guarantee for the disassembly operation of the bolt assembly, and also ensure the personal safety of the operators. Description of the Drawings

[0017] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0018] Figure 1 It is the front view structural schematic diagram of the seat body in Embodiment 1.

[0019] Figure 2 It is the top view structural schematic diagram of the seat body in Embodiment 1.

[0020] Figure 3 It is the side view structural schematic diagram of the seat body in Embodiment 1.

[0021] Figure 4 It is the front view structural schematic diagram of the seat body in Embodiment 2.

[0022] Figure 5 It is the top view structural schematic diagram of the seat body in Embodiment 2.

[0023] Figure 6 It is the front view structural schematic diagram of the usage state of the seat body and the expander.

[0024] Figure 7 It is the top view structural schematic diagram of the cylinder head body.

[0025] Figure 8 、 Figure 9 It is the top view structural schematic diagram of the usage state of the seat body and the cylinder head body.

[0026] In the figure: 100 body, 101 operation channel, 102 operation hole, 103 support surface, 104 positioning seat, 200 stretcher, 300 cylinder head body, 301 nut, 302 screw rod, 303 end face. Specific implementation mode

[0027] The following specific embodiments illustrate the implementation mode of the present utility model. Those skilled in this technology can easily understand other advantages and effects of the present utility model from the content disclosed in this specification.

[0028] According to Figures 1 to 3 、 Figures 6 to 9 As shown in the figure: This embodiment provides a disassembly seat for the intake and exhaust cylinder head of an engine, including a body 100. The body 100 is located on the end face 303 of the cylinder head body 300 and is used to disassemble the bolt assembly through the body 100 during engine maintenance operations. The specific structure, implementation structure, and working principle of the body 100 are described as follows.

[0029] The body 100 adopts a cuboid block structure, made of metal, with a thickness of 60 mm, and is applicable to diesel engines of models such as Weichai 8250 and 6250. Since ships mostly sail on the sea, in order to meet the long-term use of the body 100, its surface is treated by chrome plating process as a corrosion-resistant protective layer, making it have good corrosion-resistant protective performance and not easily rust, which is applicable to the working environment of sea navigation;

[0030] The body 100 is provided with two operation channels 101 that match the shape of the bolt assembly. The operation channels 101 are vertically distributed and symmetrically distributed at positions near the ends on both sides of the body 100. Operation holes 102 communicating with the operation channels 101 are also provided on the side faces at both ends of the body 100. The operation holes 102 are horizontally distributed long holes, and the height of the operation holes 102 matches the operation position of the nut operation position, which is convenient for operating the bolt assembly through tools at the position of the operation holes 102 during operation; The bottom surface of the body 100 is a flat support surface 103. Since the end face 303 of the cylinder head body 300 is a plane, the bottom surface of the body 100 being a plane can also match the shape of the cylinder head body 300, and finally it is used for cooperative operation with the cylinder head body 300. Of course, according to the installation position of the body 100, the support surface 103 can also be processed into a special-shaped surface that can be in full contact with the end face 303.

[0031] The bolt assembly of the cylinder head body 300 includes four groups located at the four corner positions. The bolt assembly consists of a nut 301 and a screw 302. The nut 301 is located outside the end face 303 of the cylinder head body 300, and the screw 302 is located inside the cylinder head body 300. The end of the screw 302 is located outside and is connected to the nut 301. The support surface 103 of the seat body 100 is located on the end face 303 of the cylinder head body 300, and the two are in close connection to form a stable stress surface. Moreover, the bolt assembly is located within the operation channel 101 of the seat body 100;

[0032] Since there are two operation channels 101 in the seat body 100, the seat body 100 can be placed horizontally or vertically on the cylinder head body 300, and the corresponding two groups of bolt assemblies are respectively located within the two operation channels 101 of the same seat body 100. Of course, the length of the seat body 100 and the specific positions of the operation channels 101 need to be set according to the spacing of the bolt assemblies, so that the part of the seat body 100 between the two groups of bolt assemblies can form a stable support with the end face 303 of the cylinder head body 300.

[0033] Based on the above structure, during use, the seat body 100 needs to be placed on the cylinder head body 300 and positioned with the bolt assembly. Then, the stretcher 200 is placed on the seat body 100 and connected to the screw 302. Subsequently, the stretcher 200 operates, and the operator can turn the nut 301 at the position of the operation hole 102 to complete the disassembly action of the bolt assembly. During this process, the bottom surface of the stretcher 200 can be fully supported by the seat body 100 to prevent the stretcher 200 from being eccentrically loaded. In this way, the set value of the stretcher 200 and the actual operation value will be consistent, and the operation effect will be more stable. At the same time, as for the seat body 100, a relatively stable support effect can also be achieved through the contact of its entire support surface 103 with the cylinder head body 300, thus solving various problems faced in the prior art due to the inability of the base of the stretcher 200 to form a complete support effect. Embodiment

[0034] According to Figures 4 to 5 As shown: This embodiment provides a disassembly seat for the engine intake and exhaust cylinder head, including a seat body 100. Different from the first embodiment: A positioning seat 104 matching the shape of the stretcher 200 is further provided on the top surface of the seat body 100. The positioning seat 104 and the seat body 100 are of an integral structure and the surface also has a chrome plating protective layer. The positioning seat 104 is of an annular structure and is located at the opening edge of the operation channel 101, and its shape can be matched with the annular groove of the stretcher 200 for positioning, thereby ensuring more accurate installation and positioning of the stretcher 200 and being easy to operate.

[0035] The above is only the preferred implementation mode of the present utility model. As long as the technical solutions that achieve the purpose of the present utility model by basically the same means fall within the protection scope of the present utility model.

Claims

1. An engine intake and exhaust cylinder head disassembly seat, comprising a seat body, characterized in that: The seat body is provided with at least one operating channel matching the shape of the bolt assembly, and the side surface of the seat body is also provided with an operating hole communicating with the operating channel.

2. The engine intake and exhaust cylinder head disassembly seat according to claim 1, characterized in that: The operating channels are provided with two and are symmetrically distributed on both sides of the seat body.

3. The engine intake and exhaust cylinder head disassembly seat according to claim 1, characterized in that: The bottom surface of the seat body is a supporting surface matching the shape of the cylinder head body.

4. The engine intake and exhaust cylinder head disassembly seat according to claim 1, characterized in that: A positioning seat matching the shape of the stretcher is also provided on the top surface of the seat body, and the stretcher is arranged on the seat body through the positioning seat.

5. The engine intake and exhaust cylinder head disassembly seat according to claim 4, characterized in that: The positioning seat is an annular structure and is located at the opening edge of the operating channel of the seat body.

6. The engine intake and exhaust cylinder head disassembly seat according to claim 4 or 5, characterized in that: The positioning seat and the seat body are an integrated structure.

7. The engine intake and exhaust cylinder head disassembly seat according to claim 1, characterized in that: The operation holes are horizontally distributed long strip holes, and the height of the operation holes matches the nut operation position of the bolt assembly.

8. The engine intake and exhaust cylinder head disassembly seat according to claim 1, characterized in that: The seat body is made of metal material, and a corrosion-resistant protective layer is provided on its surface.

9. The engine intake and exhaust cylinder head disassembly seat according to claim 1, characterized in that: It also includes a cylinder head body, which is provided with a plurality of bolt assemblies. The supporting surface of the seat body is located on the end surface of the cylinder head body, and the bolt assemblies are located in the operating channel of the seat body.

10. The engine intake and exhaust cylinder head disassembly seat according to claim 9, characterized in that: The bolt assembly of the cylinder head body includes four groups located at its four corners, and the seat body is provided with two operating channels. The seat body is placed horizontally or vertically on the cylinder head body, and the corresponding two groups of bolt assemblies are respectively located in the two operating channels of the same seat body.

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