A crankcase

Abstract

The application relates to the technical field of engine components, and provides a crankcase, which comprises a case base and a plurality of mounting pieces; a plurality of mounting holes are arranged at one end of the case base; each mounting piece is arranged at each mounting hole; each mounting piece comprises a mounting bolt and a spring; the mounting bolt is arranged in the mounting hole; and the spring is arranged between the case base and the mounting bolt to drive the mounting bolt away from the case base, so that the mounting bolt partially extends out of the mounting hole. Therefore, the case base can be conveniently mounted.

Description

Technical Field

[0001] This application relates to the field of engine components, and more particularly to a crankcase. Background Technology

[0002] The crankcase is a key component of an engine. It is located in the lower part of the engine and its main function is to house and protect the crankshaft.

[0003] In related technologies, a crankcase includes a housing and a housing base. The housing is fixedly connected to the housing base, and the bottom of the housing base is fixedly connected to the engine mounting housing by multiple bolts to achieve the fixation of the crankcase.

[0004] However, during the actual installation of the enclosure, the staff needs to align the enclosure with the mounting shell multiple times to ensure that the holes for multiple bolts are aligned, which makes the installation of the enclosure quite troublesome and therefore needs to be improved.

[0005] Practical content To facilitate the installation of the crankcase, this application provides a crankcase.

[0006] The crankcase provided in this application adopts the following technical solution: A crankcase includes a housing and a plurality of mounting components; one end of the housing has a plurality of mounting holes; each mounting component is disposed at each of the mounting holes; each mounting component includes a mounting bolt and a spring, the mounting bolt passing through the mounting hole, and the spring being disposed between the housing and the mounting bolt to drive the mounting bolt away from the housing, so that the mounting bolt partially protrudes from the mounting hole.

[0007] By adopting the above technical solution, in practical applications, the spring drives the mounting bolts passing through the mounting holes away from the housing, causing the mounting bolts to partially protrude from the mounting holes. The operator adjusts the position of the housing so that the parts of each mounting bolt protruding from the mounting holes are inserted into the threaded holes of each mounting shell, thereby achieving positioning between the housing and the mounting shell and ensuring that each mounting bolt is aligned with each threaded hole. Afterwards, the housing can be installed simply by rotating each mounting bolt so that each mounting bolt is threaded into each threaded hole. The operation is simple and convenient, thus facilitating the installation of the housing.

[0008] Preferably, the mounting component further includes a mounting cylinder disposed on the housing base. The mounting bolt includes a screw and an abutment plate. One end of the screw passes through the mounting cylinder and the mounting hole. The abutment plate is disposed on the screw and located in the mounting cylinder. One end of the spring elastically abuts against the abutment plate, and the other end elastically abuts against the housing base.

[0009] By adopting the above technical solution, a mounting cylinder is set up, and the screw is inserted through the mounting cylinder so that the abutment plate is located in the mounting cylinder. Then, the spring is placed in the mounting cylinder and abuts against the abutment plate to complete the assembly of the mounting component. The mounting cylinder is then installed on the housing to realize the installation between the mounting component and the housing. The operation is simple and convenient.

[0010] Preferably, the housing is provided with a connecting hole at each of the mounting holes, the diameter of the connecting hole is larger than the diameter of the mounting hole, and the mounting cylinder is threaded to the connecting hole.

[0011] By adopting the above technical solution and setting connection holes, a detachable connection between the mounting cylinder and the housing can be achieved, so as to facilitate the installation and disassembly of the mounting components and thus facilitate the maintenance of the mounting components.

[0012] Preferably, the abutment plate is threadedly connected to the screw.

[0013] By adopting the above technical solution, the abutment plate is threadedly connected to the screw rod, so as to adjust the position of the abutment plate and thus adjust the length of the screw rod extending out of the mounting hole, so that the screw rod has a suitable length to be inserted into the threaded hole, thereby ensuring the stability of the positioning between the housing and the mounting shell, and without affecting the subsequent threaded connection between the screw rod and the threaded hole.

[0014] Preferably, the mounting bolt further includes a screw cap, which is threadedly connected to the end of the screw away from the mounting hole.

[0015] By adopting the above technical solution, a screw cap is provided to facilitate the rotation of the screw rod, and the screw cap is threadedly connected to the screw rod to facilitate the disassembly and removal of the mounting bolt and the mounting cylinder.

[0016] Preferably, the screw includes a threaded portion and a positioning portion, wherein the positioning portion is located at one end of the threaded portion near the mounting hole and partially extends out of the mounting hole.

[0017] By adopting the above technical solution, and by setting a threaded part and a positioning part, the threaded part achieves threaded connection with the abutment plate and the threaded hole, and the positioning part achieves insertion with the threaded hole.

[0018] Preferably, the end of the positioning part away from the threaded part is provided with a chamfer.

[0019] By adopting the above technical solution, a chamfered portion is provided to facilitate the insertion of the positioning portion into the threaded hole.

[0020] Preferably, the spring is sleeved on the screw.

[0021] By adopting the above technical solution, a spring is sleeved on the screw, which facilitates the installation of the spring and ensures the stability of the spring's operation.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. The spring drives the mounting bolts that pass through the mounting holes away from the housing, so that the mounting bolts protrude from the mounting holes. The operator adjusts the position of the housing so that the protruding parts of each mounting bolt are inserted into the threaded holes of each mounting shell to achieve positioning between the housing and the mounting shell, ensuring that each mounting bolt is aligned with each threaded hole. Then, by simply rotating each mounting bolt, the threads of each mounting bolt are connected to the threaded holes, and the housing can be installed. The operation is simple and convenient, thus facilitating the installation of the housing. 2. By setting up an installation cylinder, the screw is passed through the installation cylinder so that the abutment plate is located in the installation cylinder. Then, the spring is placed in the installation cylinder and abuts against the abutment plate to complete the assembly of the installation component. Then, the installation cylinder is installed on the housing to realize the installation between the installation component and the housing. The operation is simple and convenient. 3. By setting an abutment plate threaded to the screw, the position of the abutment plate can be adjusted, thereby adjusting the length of the screw extending out of the mounting hole. This ensures that the screw has a suitable length to be inserted into the threaded hole, guaranteeing the stability of the positioning between the housing and the mounting shell, and does not affect the subsequent threaded connection between the screw and the threaded hole. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the crankcase in an embodiment of this application; Figure 2 This is a schematic diagram of the crankcase portion structure in an embodiment of this application; Figure 3 This is a schematic diagram of the overall structure of the mounting bolts in the embodiments of this application.

[0024] Reference numerals: 1. Housing; 2. Housing base; 21. Mounting hole; 22. Connecting hole; 3. Mounting component; 31. Mounting bolt; 311. Screw; 311a. Threaded part; 311b. Positioning part; 311c. Chamfered part; 312. Abutment plate; 313. Screw cap; 32. Spring; 33. Mounting cylinder. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0026] This application discloses a crankcase.

[0027] Reference Figure 1 The crankcase includes a housing 1, a housing base 2, and multiple mounting parts 3. The housing 1 is fixedly connected to the upper end of the housing base 2, and the lower end of the housing base 2 is provided with multiple mounting holes 21 spaced apart along its circumference.

[0028] Reference Figure 1 and Figure 2 The number of mounting parts 3 is the same as the number of mounting holes 21, and each mounting part 3 is located at each mounting hole 21. Specifically, the mounting part 3 includes a mounting bolt 31 and a spring 32. The lower end of the mounting bolt 31 passes through the mounting hole 21, and the spring 32 is installed between the upper side of the lower end of the housing 2 and the mounting bolt 31 to drive the mounting bolt 31 away from the housing 2, that is, to drive the mounting bolt 31 to move upward, so that the mounting bolt 31 partially protrudes from the mounting hole 21, and the part of the mounting bolt 31 protruding from the mounting hole 21 has no threads.

[0029] In practical applications, the spring 32 drives the mounting bolt 31, which passes through the mounting hole 21, to move upward, so that the lower part of the mounting bolt 31 protrudes from the mounting hole 21. The operator adjusts the position of the housing 2 so that the part of each mounting bolt 31 protruding from the mounting hole 21 is inserted into the threaded hole of each mounting shell, thereby achieving the positioning of the housing 2 and the mounting shell before fixing. This ensures that each mounting bolt 31 is aligned with each threaded hole. Afterward, the housing 1 can be installed simply by rotating each mounting bolt 31 so that each mounting bolt 31 is threaded into each threaded hole. There is no need to align the position of the housing 2 and the mounting shell multiple times. The operation is simple and convenient, thus facilitating the installation of the housing 2.

[0030] In some embodiments, the mounting component 3 further includes a mounting cylinder 33, which is fixedly connected to the upper side of the lower end of the housing 2. The mounting bolt 31 includes a screw 311 and an abutment plate 312. The lower end of the screw 311 passes through the mounting cylinder 33 and the mounting hole 21 in sequence. The abutment plate 312 is fixedly connected to the screw 311 and located within the mounting cylinder 33. The spring 32 is located within the mounting cylinder 33, with its upper end elastically abutting against the abutment plate 312 and its lower end elastically abutting against the housing 2. During installation, the mounting component 3 is first inserted upwards through the mounting cylinder 33, so that the abutment plate 312 is located within the mounting cylinder 33. Then, the spring 32 is placed within the mounting cylinder 33, abutting against the abutment plate 312, thus completing the assembly of the mounting component 3. The mounting cylinder 33 is then installed on the housing 2, thereby achieving the installation between the mounting component 3 and the housing 2. The operation is simple and convenient, facilitating the installation of the mounting component 3. The spring 32 is sleeved on the screw 311 to facilitate the installation of the spring 32 and to ensure the stability of the spring 32 during operation.

[0031] In some embodiments, the housing 2 is provided with a connecting hole 22 at each of the mounting holes 21. The connecting hole 22 is coaxial with the mounting hole 21, and the diameter of the connecting hole 22 is larger than the diameter of the mounting hole 21. The outer circumferential side of the mounting cylinder 33 is threaded to the connecting hole 22 to realize a detachable connection between the mounting cylinder 33 and the housing 2, so as to facilitate the installation and removal of the mounting component 3. This facilitates the maintenance of the mounting component 3, such as the repair or replacement of the spring 32.

[0032] In some embodiments, the abutment plate 312 is threadedly connected to the screw 311. The position of the abutment plate 312 can be adjusted by rotating the abutment plate 312, thereby facilitating the adjustment of the length of the screw 311 extending out of the mounting hole 21, so that the screw 311 has a suitable length to be inserted into the threaded hole, so as to ensure the stability of the positioning between the housing 2 and the mounting shell, and without affecting the subsequent threaded connection between the screw 311 and the threaded hole.

[0033] In some embodiments, the mounting bolt 31 further includes a screw cap 313, which is threaded to the upper end of the screw 311. The screw cap 313 applies force to the screw 311 to facilitate its rotation. Simultaneously, during the disassembly of the mounting bolt 31 from the mounting sleeve 33, rotating the screw cap 313 disengages it from the screw 311, allowing the screw 311 to disengage from the mounting sleeve 33, thus facilitating the disassembly of the mounting bolt 31 from the mounting sleeve 33.

[0034] Reference Figure 2 and Figure 3 In some embodiments, the screw 311 includes a threaded portion 311a and a positioning portion 311b. The threaded portion 311a has threads to achieve threaded connection with the abutment plate 312, the screw cap 313, and the threaded hole. The positioning portion 311b is integrally connected to the lower end of the threaded portion 311a and achieves insertion into the threaded hole. The lower end of the positioning portion 311b is provided with a chamfered portion 311c to facilitate the insertion of the positioning portion 311b into the threaded hole, thereby facilitating the positioning between the housing 2 and the mounting shell.

[0035] The implementation principle of this embodiment is as follows: In practical application, the spring 32 drives the mounting bolt 31 passing through the mounting hole 21 to move upward, so that the lower end of the mounting bolt 31 protrudes from the mounting hole 21. The operator adjusts the position of the housing 2 so that the part of each mounting bolt 31 protruding from the mounting hole 21 is inserted into the threaded hole of each mounting shell, so as to achieve the positioning of the housing 2 and the mounting shell before fixing. This ensures that each mounting bolt 31 is aligned with each threaded hole. Then, by simply rotating each mounting bolt 31, the mounting bolt 31 is threaded into each threaded hole, and the housing 1 can be installed. There is no need to align the position of the housing 2 and the mounting shell multiple times. The operation is simple and convenient, thus facilitating the installation of the housing 2.

[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A crankcase, characterized in that, The device includes a housing (2) and multiple mounting components (3); one end of the housing (2) is provided with multiple mounting holes (21); each mounting component (3) is located at each mounting hole (21); each mounting component (3) includes a mounting bolt (31) and a spring (32), the mounting bolt (31) passes through the mounting hole (21), and the spring (32) is located between the housing (2) and the mounting bolt (31) to drive the mounting bolt (31) away from the housing (2) so that the mounting bolt (31) partially protrudes from the mounting hole (21).

2. A crankcase according to claim 1, characterized in that, The mounting component (3) further includes a mounting cylinder (33), which is disposed on the housing (2). The mounting bolt (31) includes a screw (311) and an abutment plate (312). One end of the screw (311) passes through the mounting cylinder (33) and the mounting hole (21). The abutment plate (312) is disposed on the screw (311) and located in the mounting cylinder (33). One end of the spring (32) elastically abuts against the abutment plate (312), and the other end elastically abuts against the housing (2).

3. A crankcase according to claim 2, characterized in that, The housing (2) has a connecting hole (22) at each of the mounting holes (21). The diameter of the connecting hole (22) is larger than the diameter of the mounting hole (21), and the mounting cylinder (33) is threaded to the connecting hole (22).

4. A crankcase according to claim 2, characterized in that, The abutment plate (312) is threadedly connected to the screw (311).

5. A crankcase according to claim 2, characterized in that, The mounting bolt (31) also includes a screw cap (313), which is threaded to the end of the screw (311) away from the mounting hole (21).

6. A crankcase according to claim 2, characterized in that, The screw (311) includes a threaded portion (311a) and a positioning portion (311b). The positioning portion (311b) is located at one end of the threaded portion (311a) near the mounting hole (21) and partially extends out of the mounting hole (21).

7. A crankcase according to claim 6, characterized in that, The positioning part (311b) has a chamfered part (311c) at the end away from the threaded part (311a).

8. A crankcase according to claim 2, characterized in that, The spring (32) is sleeved on the screw (311).

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