Protective structure

Abstract

The utility model provides a protective structure, which is used for wrapping a fastener arranged on the output end of an engine flywheel casing, the fastener is used for connecting the engine flywheel casing and a gearbox, and the protective structure comprises a protective body, a protective cover and a protective cover, the sleeve body is arranged in the containing concave part, and the sleeve body is used for being arranged outside the fastener in a sleeving mode; wherein the protection body is arc-shaped or annular. The utility model effectively solves the problem in the prior art that a double-end stud arranged on an engine flywheel casing easily punctures or scratches an engine protective hood or protective clothing.

Description

Technical Field

[0001] The utility model relates to the technical field of engines, and more particularly, to a protection structure. Background Art

[0002] Currently, a connecting component (stud) is usually provided between a gearbox and an engine flywheel housing to connect the two, and the connecting component (stud) is installed on the engine flywheel housing.

[0003] However, when an engine protection hood or a protective clothing is sleeved outside the engine flywheel housing, the exposed connecting component (stud) is likely to pierce or scratch the engine protection hood or the protective clothing, affecting the service life of the engine protection hood or the protective clothing. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a protection structure to solve the problem that the stud installed on the engine flywheel housing in the prior art is likely to pierce or scratch the engine protection hood or the protective clothing.

[0005] To achieve the above object, the utility model provides a protection structure for covering a fastener disposed on the output end of an engine flywheel housing, the fastener being used to connect the engine flywheel housing and a gearbox. The protection structure includes: a protection body having a receiving recess; a sleeve disposed in the receiving recess for sleeving outside the fastener; wherein the protection body is arc-shaped or annular.

[0006] Further, the sleeve is made of rubber or silica gel.

[0007] Further, there are a plurality of receiving recesses, and the plurality of receiving recesses are arranged at intervals around the central axis of the protection body. There are a plurality of sleeves, and the plurality of sleeves are arranged in one-to-one correspondence with the plurality of receiving recesses.

[0008] Further, there are multiple groups of receiving recesses, and the multiple groups of receiving recesses are arranged at intervals along the radial direction of the protection body. There are multiple groups of sleeves, and the multiple groups of sleeves are arranged in one-to-one correspondence with the multiple groups of receiving recesses; each group of receiving recesses includes a plurality of receiving recesses arranged at intervals around the central axis of the protection body, and each group of sleeves includes a plurality of sleeves arranged at intervals around the central axis of the protection body.

[0009] Further, the receiving recess is a countersunk hole, and the countersunk hole includes a tapered hole section and a straight hole section that are communicated with each other. Along the direction from the tapered hole section to the straight hole section, the inner diameter of the tapered hole section gradually decreases, and one end of the tapered hole section away from the straight hole section penetrates through the protection body; wherein the sleeve is located in the straight hole section.

[0010] Further, when the protection body is arc-shaped, the central angle corresponding to the protection body is greater than or equal to 180°.

[0011] Further, the protective body is in a plate-like structure, and the accommodating recess is arranged on the plate surface of the plate-like structure.

[0012] Further, rib strips are arranged on the outer side edge of the plate-like structure, and the rib strips are arranged flush with the plate surface of the plate-like structure away from the engine flywheel housing.

[0013] Further, a buffer pad is arranged on the surface of the protective body facing the engine flywheel housing.

[0014] Further, the protective body is made of at least one of cold steel, polypropylene, and polyethylene.

[0015] Applying the technical solution of the present utility model, the protective structure is used to cover the fasteners arranged on the output end of the engine flywheel housing. The fasteners are used to connect the engine flywheel housing and the transmission. The protective structure includes a protective body and a sleeve body. The protective body has an accommodating recess, and the sleeve body is arranged in the accommodating recess. The sleeve body is used to sleeved outside the fasteners. Among them, the protective body is in an arc shape or a ring shape. In this way, before sleeving the engine protective cover or protective clothing outside the engine flywheel housing, first sleeve the sleeve body outside the fasteners (double-headed studs) to wrap the fasteners (double-headed studs), so as to avoid the fasteners (double-headed studs) being exposed outside and piercing or scratching the engine protective cover or protective clothing, reducing losses, and thus solving the problem in the prior art that the double-headed studs installed on the engine flywheel housing are easy to pierce or scratch the engine protective cover or protective clothing, and extending the service life of the engine protective cover or protective clothing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The specification drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0017] Figure 1 Shows a three-dimensional structural schematic diagram of an embodiment of the protective structure according to the present utility model;

[0018] Figure 2 Shows Figure 1 The exploded view of the protective structure in

[0019] Figure 3 Shows Figure 1 The front view of the protective structure in

[0020] Figure 4 Shows Figure 3 The A-A cross-sectional view of the protective structure in

[0021] Figure 5 Shows Figure 1 The three-dimensional structural schematic diagram of the protective structure when it is used to protect the standard No. 1 shell in

[0022] Figure 6 shows Figure 1 The three-dimensional structure diagram of the protective structure in when protecting the standard No. 2 shell;

[0023] Figure 7 shows Figure 6 The three-dimensional structure diagram of another angle of the protective structure in when protecting the standard No. 2 shell.

[0024] Among them, the above-mentioned drawings include the following reference numerals:

[0025] 10. Engine flywheel housing;

[0026] 20. Fastener;

[0027] 30. Protective body; 31. Accommodating recess; 311. Tapered hole section; 312. Straight hole section;

[0028] 40. Sleeve body;

[0029] 50. Rib. Detailed implementation manners

[0030] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The following will describe the present invention in detail with reference to the drawings and in combination with the embodiments.

[0031] It should be pointed out that unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs.

[0032] In the present invention, unless otherwise stated, the orientation terms such as "upper, lower" are usually in the direction shown in the drawings, or in the vertical, perpendicular or gravitational direction; similarly, for the convenience of understanding and description, "left, right" are usually left and right as shown in the drawings; "inside, outside" refer to the inside and outside relative to the contour of each component itself, but the above orientation terms do not limit the present invention.

[0033] In order to solve the problem that the stud installed on the engine flywheel housing in the prior art is easy to pierce or scratch the engine protective cover or protective clothing, the present application provides a protective structure.

[0034] Such as Figures 1 to 7As shown, the protective structure is used to cover the fastener 20 disposed at the output end of the engine flywheel housing 10. The fastener 20 is used to connect the engine flywheel housing 10 and the transmission. The protective structure includes a protective body 30 and a sleeve 40. The protective body 30 has a receiving recess 31. The sleeve 40 is disposed in the receiving recess 31 and is used to sleeved outside the fastener 20. Among them, the protective body 30 is arc-shaped.

[0035] Applying the technical solution of this embodiment, before installing the engine protective hood or protective clothing outside the engine flywheel housing, first sleeve the sleeve 40 outside the fastener 20 (double-headed stud) to wrap the fastener 20 (double-headed stud), avoiding the fastener 20 (double-headed stud) being exposed outside and piercing or scratching the engine protective hood or protective clothing, reducing losses, and thus solving the problem in the prior art that the double-headed stud installed on the engine flywheel housing is prone to pierce or scratch the engine protective hood or protective clothing, and extending the service life of the engine protective hood or protective clothing.

[0036] In other embodiments not shown in the drawings, the protective body is annular. In this way, the above setting makes the shape selection of the protective body more flexible to meet different usage requirements and working conditions, and also improves the processing flexibility of the staff.

[0037] Optionally, the sleeve 40 is made of rubber or silica gel. In this way, the above setting makes the sleeve 40 made of an elastic material, and thus can wrap fasteners 20 of different sizes, improving the protection versatility of the protective structure. At the same time, the above setting avoids the sleeve 40 from damaging the fastener 20.

[0038] In this embodiment, the sleeve 40 is made of rubber.

[0039] Optionally, there are multiple receiving recesses 31, and the multiple receiving recesses 31 are arranged at intervals around the central axis of the protective body 30. There are multiple sleeves 40, and the multiple sleeves 40 are arranged in one-to-one correspondence with the multiple receiving recesses 31. In this way, the above setting of the multiple sleeves 40 is used to adapt to the multiple fasteners 20, thereby ensuring that most of the fasteners 20 are covered, and further preventing the double-headed studs of the fasteners 20 from being exposed outside and piercing or scratching the engine protective hood or protective clothing.

[0040] Optionally, there are multiple groups of receiving recesses 31. The multiple groups of receiving recesses 31 are arranged at intervals in the radial direction of the protection body 30. There are multiple groups of sleeves 40, and the multiple groups of sleeves 40 are arranged in one-to-one correspondence with the multiple groups of receiving recesses 31. Each group of receiving recesses 31 includes a plurality of receiving recesses 31 arranged at intervals around the central axis of the protection body 30, and each group of sleeves 40 includes a plurality of sleeves 40 arranged at intervals around the central axis of the protection body 30. In this way, the above arrangement of the multiple groups of sleeves 40 can be adapted to the fasteners 20 on the engine flywheel housings of different specifications, thereby improving the versatility of the protection structure.

[0041] In this embodiment, there are two groups of receiving recesses 31. The two groups of receiving recesses 31 are arranged at intervals in the radial direction of the protection body 30. There are two groups of sleeves 40, and the two groups of sleeves 40 are arranged in one-to-one correspondence with the two groups of receiving recesses 31. The two groups of receiving recesses 31 respectively cover the fasteners 20 on the engine flywheel housings of different specifications and sizes. In this way, the above arrangement of the protection structure can simultaneously meet the protection requirements of the standard No. 1 housing and the standard No. 2 housing, taking into account the output ends of a series of engines, and has versatility and extremely strong adaptability.

[0042] It should be noted that the number of groups of the receiving recesses 31 is not limited to this and can be adjusted according to the working conditions and usage requirements. Optionally, the receiving recesses 31 are three groups, or four groups, or five groups, or multiple groups.

[0043] It should be noted that the number of groups of the sleeves 40 is not limited to this and can be adjusted according to the working conditions and usage requirements. Optionally, the sleeves 40 are three groups, or four groups, or five groups, or multiple groups.

[0044] As Figure 4 shown, the receiving recess 31 is a countersunk hole. The countersunk hole includes a tapered hole section 311 and a straight hole section 312 that are in communication with each other. In the direction from the tapered hole section 311 to the straight hole section 312, the inner diameter of the tapered hole section 311 gradually decreases, and one end of the tapered hole section 311 away from the straight hole section 312 penetrates through the protection body 30. Among them, the sleeve 40 is located in the straight hole section 312. In this way, during the assembly process of the sleeve 40 and the protection body 30, the above arrangement of the tapered hole section 311 can guide the sleeve 40, thereby reducing the assembly difficulty of the sleeve 40 and the protection body 30.

[0045] Optionally, the central angle corresponding to the protection body 30 is greater than or equal to 180°. In this way, when the protection structure is installed on the upper half of the engine flywheel housing, the above arrangement ensures that the coverage range of the protection structure exceeds more than half of the engine flywheel housing, thereby forming an effective shielding space and meeting the design requirements for preventing scratches or punctures of the covering parts.

[0046] In this embodiment, the central angle corresponding to the protection body 30 is equal to 180°.

[0047] In this embodiment, the protection body 30 has a plate-like structure, and the receiving recess 31 is arranged on the plate surface of the plate-like structure. In this way, the above arrangement makes the structure of the protection body 30 simpler, easier to process and implement, and reduces the overall processing cost and processing difficulty of the protection structure.

[0048] As Figures 1 to 4 shown, a rib 50 is arranged on the outer side edge of the plate-like structure, and the rib 50 is flush with the plate surface of the plate-like structure away from the engine flywheel housing 10. In this way, during the process of the staff installing the protection structure on the engine flywheel housing 10, the above arrangement of the rib 50 facilitates the staff to hold or operate the protection structure, thereby reducing the operation difficulty of the staff. At the same time, the above arrangement makes the overall formed by the protection structure and the engine flywheel housing 10 after assembly cleaner and more beautiful without sharp edges.

[0049] In this embodiment, the rib 50 is annular, and the central angle corresponding to the rib 50 is equal to 180°. Specifically, the two ends of the rib 50 are flush with the two ends of the plate-like structure respectively.

[0050] Optionally, a buffer pad is arranged on the surface of the protection body 30 facing the engine flywheel housing 10. In this way, after the protection structure and the engine flywheel housing are assembled, the above arrangement of the buffer pad can reduce the impact force between the two, thereby avoiding structural damage to the protection structure and the engine flywheel housing 10.

[0051] Optionally, the buffer pad is made of rubber or silica gel.

[0052] Optionally, the protection body 30 is made of at least one of cold steel, polypropylene, and polyethylene. In this way, the above arrangement makes the selection of the structure of the protection body 30 more flexible to meet different usage requirements and working conditions, and improves the processing flexibility of the staff.

[0053] From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects:

[0054] The protective structure is used to cover the fasteners arranged on the output end of the engine flywheel housing. The fasteners are used to connect the engine flywheel housing and the transmission. The protective structure includes a protective body and a sleeve. The protective body has a receiving recess, and the sleeve is arranged in the receiving recess. The sleeve is used to cover the outside of the fasteners. Among them, the protective body is arc-shaped or annular. In this way, before installing the engine protective cover or protective clothing outside the engine flywheel housing, the sleeve is first sleeved outside the fasteners (studs) to wrap the fasteners (studs), avoiding the fasteners (studs) being exposed outside and piercing or scratching the engine protective cover or protective clothing, reducing losses, and thus solving the problem in the prior art that the studs installed on the engine flywheel housing are easy to pierce or scratch the engine protective cover or protective clothing, and extending the service life of the engine protective cover or protective clothing.

[0055] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0056] It should be noted that the terms used herein are only for describing specific embodiments, rather than intending to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0057] It should be noted that the terms "first", "second", etc. in the description, claims and drawings of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order different from those illustrated or described herein.

[0058] The above are only the preferred embodiments of the present invention, and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A protective structure for covering a fastener (20) disposed on an output end of an engine flywheel housing (10), wherein the fastener (20) is used to connect the engine flywheel housing (10) and a gearbox, characterized in that: The protective structure comprises: A protective body (30) having a receiving recess (31); A sleeve body (40) is arranged in the accommodating recess (31), and the sleeve body (40) is used to be sleeved outside the fastener (20); Wherein, the protective body (30) is arc-shaped or ring-shaped.

2. The protective structure according to claim 1, characterized in that: The sleeve body (40) is made of rubber or silicone.

3. The protective structure according to claim 1, characterized in that: There are a plurality of accommodating recesses (31), which are arranged at intervals around the central axis of the protective body (30); there are a plurality of sleeves (40), which are arranged in a one-to-one correspondence with the plurality of accommodating recesses (31).

4. The protective structure according to claim 1, characterized in that: The accommodating recesses (31) are multiple groups, and the multiple groups of accommodating recesses (31) are arranged at intervals along the radial direction of the protective body (30); the sleeves (40) are multiple groups, and the multiple groups of sleeves (40) are arranged in a one-to-one correspondence with the multiple groups of accommodating recesses (31); each group of accommodating recesses (31) includes multiple accommodating recesses (31) arranged at intervals around the central axis of the protective body (30), and each group of sleeves (40) includes multiple sleeves (40) arranged at intervals around the central axis of the protective body (30).

5. The protective structure according to claim 1, characterized in that: The accommodating recess (31) is a countersunk hole, and the countersunk hole comprises a conical hole section (311) and a straight hole section (312) which are connected to each other. The inner diameter of the conical hole section (311) gradually decreases in the direction from the conical hole section (311) to the straight hole section (312), and one end of the conical hole section (311) away from the straight hole section (312) passes through the protective body (30); wherein the sleeve (40) is located in the straight hole section (312).

6. The protective structure according to claim 1, characterized in that: When the protective body (30) is arc-shaped, the central angle corresponding to the protective body (30) is greater than or equal to 180°.

7. The protective structure according to claim 1, characterized in that: The protective body (30) is a plate-like structure, and the accommodating recess (31) is arranged on the plate surface of the plate-like structure.

8. The protective structure according to claim 7, characterized in that: Ribs (50) are arranged on the outer side of the plate-like structure, and the ribs (50) are arranged flush with the plate surface of the plate-like structure away from the engine flywheel housing (10).

9. The protective structure according to claim 1, characterized in that: A buffer pad is provided on the surface of the protection body (30) facing the engine flywheel housing (10).

10. The protective structure according to claim 1, characterized in that: The protective body (30) is made of at least one of cold steel, polypropylene and polyethylene.

Images