Crankshaft assembly with detachable connecting rod journal

Abstract

The utility model relates to the technical field of machinery, in particular to a crankshaft assembly with a detachable connecting rod journal, which comprises a connecting rod journal and a structural component, the structural assembly comprises a left handle, a right handle, a left crankshaft, a right crankshaft, a gear, a left rectangular block, a right rectangular block and an installation bolt, the left rectangular block is detachably connected with the connecting rod journal, the right rectangular block is detachably connected with the connecting rod journal and located on the side, away from the left rectangular block, of the connecting rod journal, and the right handle is fixedly installed on the side, away from the left rectangular block, of the right rectangular block. The gear is fixedly installed on the side, close to the right handle, of the right crankshaft, the left handle is fixedly installed on the side, away from the right handle, of the left rectangular block, the installation bolt is in threaded connection with the left handle and the right handle, the left crankshaft is fixedly installed on the side, away from the right handle, of the left handle, and therefore the using effect of the equipment is improved.

Description

Technical Field

[0001] This utility model relates to the field of mechanical technology, and in particular to a crankshaft assembly with a detachable connecting rod journal. Background Technology

[0002] The crankshaft is one of the most important components of an engine. It is usually composed of important parts such as the main journal and connecting rod journal. After the connecting rod is installed, it can convert the up-and-down (reciprocating) motion of the connecting rod into cyclic (rotational) motion. It is the power source of the engine and is responsible for converting the force transmitted from the connecting rod into torque, which is output through the crankshaft to drive other accessories on the engine. In a typical crankshaft assembly, stress concentration is prone to occur between the crankshaft disc and the eccentric connecting rod journal, which can lead to fatigue fracture and affect the performance of the crankshaft assembly.

[0003] The prior art CN203488536U discloses a motor crankshaft assembly, including a connecting rod journal, a first main journal, a second main journal, a first gear, a second gear, a first shoulder, a first gear, an arc-shaped groove, and a crank. The connecting rod journal is connected to the piston rod of an internal combustion engine, converting the reciprocating motion of the piston rod into the rotational motion of the first and second main journals. The first and second gears drive the rotation of the generator's main shaft to generate electricity. The first gear is fixed to the first shoulder, preventing scratches on the first main journal during bearing assembly and offering the advantage of reliable assembly. The arc-shaped groove between the connecting rod journal and the crank, formed by rounded corner rolling, avoids stress concentration between the connecting rod journal and the crank, increasing connection strength and improving the overall performance of the crankshaft assembly.

[0004] In normal use, with the continuous advancement of technology and the increasing demands of users, higher requirements are placed on the disassembly, maintainability, and adaptability of the crankshaft assembly. In the existing technology, the connecting rod journal is fixedly connected to the crankshaft body. Once a fault occurs or repair is required, the entire crankshaft assembly often needs to be disassembled and replaced, which increases maintenance costs and affects the performance of the equipment. Utility Model Content

[0005] The purpose of this utility model is to provide a crankshaft assembly with a detachable connecting rod journal, which solves the problem that with the continuous advancement of technology and the increasing demands of users, higher requirements have been placed on the detachability, maintainability, and adaptability of the crankshaft assembly. In the prior art, the connecting rod journal is fixedly connected to the crankshaft body. Once a fault occurs or repair is needed, the entire crankshaft assembly often needs to be disassembled and replaced, which increases maintenance costs and affects the performance of the equipment.

[0006] To achieve the above objectives, this utility model provides a crankshaft assembly with a detachable connecting rod journal, including a connecting rod journal and a structural assembly. The structural assembly includes a left shank, a right shank, a left crankshaft, a right crankshaft, a gear, a left rectangular block, a right rectangular block, and a mounting bolt. The left rectangular block is detachably connected to the connecting rod journal, and the right rectangular block is detachably connected to the connecting rod journal and located on the side of the connecting rod journal away from the left rectangular block. The right shank is fixedly installed on the side of the right rectangular block away from the left rectangular block. The right crankshaft is fixedly installed on the side of the right shank away from the right rectangular block. The gear is fixedly installed on the side of the right crankshaft close to the right shank. The left shank is fixedly installed on the side of the left rectangular block away from the right shank. The mounting bolt is threadedly connected to the left shank and also threadedly connected to the right shank. The left crankshaft is fixedly installed on the side of the left shank away from the right shank.

[0007] The mounting bolt includes a mounting screw and a mounting nut. The mounting screw is threaded to the left shank and to the right shank. The mounting nut is threaded to the mounting screw and abuts against the right shank.

[0008] The left handle has a left hole located on the side of the left handle near the mounting screw and engages with the mounting screw. The right handle has a right hole located on the side of the right handle near the mounting screw and engages with the mounting screw.

[0009] The connecting rod journal has a left cavity, which is located on the side of the connecting rod journal near the left rectangular block and mates with the left rectangular block; the connecting rod journal also has a right cavity, which is located on the side of the connecting rod journal near the right rectangular block and mates with the right rectangular block.

[0010] The structural assembly further includes a limiting rod, a limiting cylinder, a mounting rod, and a mounting cylinder. The limiting cylinder is fixedly connected to the left handle and located on the side of the left handle near the connecting rod journal. The limiting rod is slidably connected to the limiting cylinder and fixedly connected to the connecting rod journal. The mounting cylinder is fixedly connected to the right handle and located on the side of the right handle near the connecting rod journal. The mounting rod is slidably connected to the mounting cylinder and fixedly connected to the connecting rod journal.

[0011] This utility model discloses a crankshaft assembly with a detachable connecting rod journal. The left crankshaft drives the left rectangular block into the left cavity, and the right crank drives the right rectangular block into the right cavity. Tightening the mounting screw and mounting nut installs the connecting rod journal between the left and right cranks. Disassembly is performed by reversing the direction of rotation. This facilitates individual replacement of the connecting rod journal, the left crank, and the right crank, thereby improving the equipment's performance. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0013] Figure 1 This is a schematic diagram of the overall structure of the crankshaft assembly with a detachable connecting rod journal according to the first embodiment of this utility model.

[0014] Figure 2 This is a structural schematic diagram of the mounting screw and mounting nut of this utility model.

[0015] Figure 3 This is a structural schematic diagram of the limiting rod and limiting cylinder of this utility model.

[0016] In the diagram: 101-Connecting rod journal, 102-Left handle, 103-Right handle, 104-Left crankshaft, 105-Right crankshaft, 106-Gear, 107-Left rectangular block, 108-Right rectangular block, 109-Mounting bolt, 110-Mounting screw, 111-Mounting nut, 112-Left hole, 113-Right hole, 114-Left cavity, 115-Right cavity, 201-Limiting rod, 202-Limiting cylinder, 203-Mounting rod, 204-Mounting cylinder. Detailed Implementation

[0017] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0018] The first embodiment of this application is as follows:

[0019] Please see Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the overall structure of the crankshaft assembly with a detachable connecting rod journal according to the first embodiment of this utility model. Figure 2This is a schematic diagram of the mounting screw and mounting nut of this utility model. This utility model provides a crankshaft assembly with a detachable connecting rod journal 101, including the connecting rod journal 101 and structural components. The structural components include a left shank 102, a right shank 103, a left crankshaft 104, a right crankshaft 105, a gear 106, a left rectangular block 107, a right rectangular block 108, and a mounting bolt 109. The mounting bolt 109 includes a mounting screw 110 and a mounting nut 111. The left shank 102 has a left hole 112, and the right shank 103 has a right hole 113. The connecting rod journal 101 has a left cavity 114 and a right cavity 115. The aforementioned solution solves the problem that in the prior art, the connecting rod journal 101 is fixedly connected to the crankshaft body. Once a fault occurs or maintenance is required, the entire crankshaft assembly often needs to be disassembled and replaced, which increases maintenance costs and affects the performance of the equipment. It is understandable that the aforementioned solution can be used when higher requirements are placed on the disassembly, maintainability and adaptability of the crankshaft assembly as technology continues to advance and user demands increase.

[0020] In this specific embodiment, by driving the left handle 102 to insert the left rectangular block 107 into the left cavity of the connecting rod journal 101, and then driving the right handle 103 to insert the right rectangular block 108 into the right cavity of the connecting rod journal 101, and tightening the mounting bolt 109, the connecting rod journal 101 is installed between the left handle 102 and the right handle 103. Conversely, disassembly is performed to facilitate the individual replacement of the connecting rod journal 101, the left handle 102, and the right handle 103, thereby improving the performance of the equipment.

[0021] The left rectangular block 107 is detachably connected to the connecting rod journal 101, and the right rectangular block 108 is detachably connected to the connecting rod journal 101 and located on the side of the connecting rod journal 101 away from the left rectangular block 107. The right shank 103 is fixedly installed on the side of the right rectangular block 108 away from the left rectangular block 107. The right crankshaft 105 is fixedly installed on the side of the right shank 103 away from the right rectangular block 108. The gear 106 is fixedly installed on the side of the right crankshaft 105 close to the right shank 103. The left shank 102 is fixedly installed on the side of the left rectangular block 107 away from the right shank 103. The mounting bolt 1... 09 is threadedly connected to the left handle 102 and the right handle 103. The left crankshaft 104 is fixedly installed on the side of the left handle 102 away from the right handle 103. The end of the connecting rod journal 101 is designed with a through hole. The left end of the connecting rod journal 101 is designed with a left cavity, and the right end of the connecting rod journal 101 is designed with a right cavity. The left end of the left rectangular block 107 is designed with a through hole. The outer side of the left rectangular block 107 is detachably connected to the left cavity of the connecting rod journal 101. The upper left side of the left handle 102 is designed with a left hole, and the upper right side of the left handle 102 is fixedly connected to the left side of the left rectangular block 107. The left crankshaft 10... The right end of the right crankshaft 104 is fixedly connected to the middle left side of the left handle 102. The right end of the right rectangular block 108 has a through hole. The outer side of the right rectangular block is detachably connected to the right cavity of the connecting rod journal 101. The upper right side of the right handle 103 has a right hole. The upper left side of the right handle 103 is fixedly connected to the right side of the right rectangular block 108. The left end of the right crankshaft 105 is fixedly connected to the middle right side of the right handle 103. The gear 106 is located on the left outer side of the right crankshaft 105. The mounting bolt 109 passes through the left hole of the left handle 102, the through hole of the left rectangular block 107, the through hole of the connecting rod journal 101, and the right rectangular block 108. The through hole of block 108 and the right hole of the right handle 103 fix the connecting rod journal 101 between the left handle 102 and the right handle 103. By driving the left handle 102 to insert the left rectangular block 107 into the left cavity of the connecting rod journal 101, and then driving the right handle 103 to insert the right rectangular block 108 into the right cavity of the connecting rod journal 101, the mounting bolt 109 is tightened to install the connecting rod journal 101 between the left handle 102 and the right handle 103. Disassembly is performed in reverse order, which facilitates the individual replacement of the connecting rod journal 101, the left handle 102, and the right handle 103, thereby improving the performance of the equipment.

[0022] Secondly, the mounting screw 110 is threadedly connected to the left handle 102 and the right handle 103; the mounting nut 111 is threadedly connected to the mounting screw 110 and abuts against the right handle 103. The mounting screw 110 is connected to the mounting nut 111 through the left hole of the left handle 102, the through hole of the left rectangular block 107, the through hole of the connecting rod journal 101, the through hole of the right rectangular block 108, and the right hole of the right handle 103. The connecting rod journal 101 is installed between the left handle 102 and the right handle 103 by the cooperation of the mounting screw 110 and the mounting nut 111.

[0023] Then, the left handle 102 has a left hole 112, which is located on the side of the left handle 102 near the mounting screw 110 and engages with the mounting screw 110. The right handle 103 has a right hole 113, which is located on the side of the right handle 103 near the mounting screw 110 and engages with the mounting screw 110. The left hole 112 is located on the upper left side of the left handle 102, and the right hole 113 is located on the upper right side of the right handle 103. The mounting screw 110 is connected to the mounting nut 111 through the left hole 112 and the right hole 113, thereby realizing the connection between the mounting screw 110 and the left handle 102 and the right handle 103.

[0024] Finally, the connecting rod journal 101 has a left cavity 114, which is located on the side of the connecting rod journal 101 near the left rectangular block 107 and cooperates with the left rectangular block 107; the connecting rod journal 101 also has a right cavity 115, which is located on the side of the connecting rod journal 101 near the right rectangular block 108 and cooperates with the right rectangular block 108. The left cavity 114 is located at the left end of the connecting rod journal 101, and the right cavity 115 is located at the right end of the connecting rod journal 101. The mounting screw 110 drives the left handle 102 to drive the left rectangular block 107 into the left cavity 114, and drives the right handle 103 to drive the right rectangular block 108 into the right cavity 115, thereby realizing the connection between the connecting rod journal 101, the right rectangular block 108, and the left rectangular block 107.

[0025] When using a crankshaft assembly with a detachable connecting rod journal 101 according to this embodiment, the left shank 102 drives the left rectangular block 107 to be embedded in the left cavity 114, and then the right shank 103 drives the right rectangular block 108 to be embedded in the right cavity 115. Tighten the mounting screw 110 and the mounting nut 111 to install the connecting rod journal 101 between the left shank 102 and the right shank 103. Disassembly is performed in reverse order, which facilitates the individual replacement of the connecting rod journal 101, the left shank 102 and the right shank 103, thereby improving the performance of the equipment.

[0026] The second embodiment of this application is as follows:

[0027] Please see Figure 3 , Figure 3 This is a structural schematic diagram of the limiting rod and limiting cylinder of this utility model. Based on the first embodiment, the structural components of this embodiment also include a limiting rod 201, a limiting cylinder 202, a mounting rod 203, and a mounting cylinder 204.

[0028] In this specific embodiment, the left handle 102 drives the limiting cylinder 202 to move on the limiting rod 201, and the right handle 103 drives the mounting cylinder 204 to move on the mounting rod 203, thereby limiting the movement angle of the left handle 102 and the right handle 103 against the connecting rod journal 101, and thus limiting the mounting angle between the left handle 102 and the right handle 103 and the connecting rod journal 101.

[0029] The limiting cylinder 202 is fixedly connected to the left handle 102 and located on the side of the left handle 102 near the connecting rod journal 101; the limiting rod 201 is slidably connected to the limiting cylinder 202 and fixedly connected to the connecting rod journal 101; the mounting cylinder 204 is fixedly connected to the right handle 103 and located on the side of the right handle 103 near the connecting rod journal 101; the mounting rod 203 is slidably connected to the mounting cylinder 204 and fixedly connected to the connecting rod journal 101; there are multiple limiting cylinders 202, and the right end of each limiting cylinder 202 is designed with a sliding hole; the upper right side of the left handle 102 is designed with multiple mounting holes, and the outer side of the closed end of the limiting cylinder 202 is fixedly connected to the mounting hole of the left handle 102; there are multiple limiting rods 201, and the right end of each limiting rod 201 is fixedly connected to the outer side of the left end of the connecting rod journal 101. The mounting cylinder 204 is provided in multiple ways. Each mounting cylinder 204 has a sliding hole at its left end. The upper left side of the right handle 103 has multiple mounting holes. The outer side of the closed end of the mounting cylinder 204 is fixedly connected to the mounting holes of the right handle 103. The mounting rod 203 is provided in multiple ways. The left end of the mounting rod 203 is fixedly connected to the outer side of the right end of the connecting rod journal 101. The outer side of the right end of the mounting rod 203 is slidably connected to the sliding hole of the mounting cylinder 204. The left handle 102 drives the limiting cylinder 202 to move on the limiting rod 201, and the right handle 103 drives the mounting cylinder 204 to move on the mounting rod 203. This limits the angle of movement of the left handle 102 and the right handle 103 against the connecting rod journal 101, thereby limiting the mounting angle between the left handle 102 and the right handle 103 and the connecting rod journal 101.

[0030] When using a crankshaft assembly with a detachable connecting rod journal 101 according to this embodiment, the left handle 102 drives the limiting cylinder 202 to move on the limiting rod 201, and the right handle 103 drives the mounting cylinder 204 to move on the mounting rod 203, thereby limiting the movement angle of the left handle 102 and the right handle 103 against the connecting rod journal 101, and thus limiting the mounting angle between the left handle 102 and the right handle 103 and the connecting rod journal 101.

[0031] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that implementing all or part of the above embodiments and making equivalent changes in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A crankshaft assembly with a detachable connecting rod journal, comprising a connecting rod journal, characterized in that: It also includes structural components; The structural components include a left handle, a right handle, a left crankshaft, a right crankshaft, a gear, a left rectangular block, a right rectangular block, and a mounting bolt. The left rectangular block is detachably connected to the connecting rod journal, and the right rectangular block is detachably connected to the connecting rod journal and located on the side of the connecting rod journal away from the left rectangular block. The right handle is fixedly installed on the side of the right rectangular block away from the left rectangular block, the right crankshaft is fixedly installed on the side of the right handle away from the right rectangular block, the gear is fixedly installed on the side of the right crankshaft close to the right handle, and the left handle is fixedly installed on the side of the left rectangular block away from the right handle. The mounting bolt is threadedly connected to the left handle and also threadedly connected to the right handle. The left crankshaft is fixedly installed on the side of the left handle away from the right handle.

2. The crankshaft assembly with a detachable connecting rod journal as described in claim 1, characterized in that: The mounting bolt includes a mounting screw and a mounting nut. The mounting screw is threaded to the left shank and to the right shank. The mounting nut is threaded to the mounting screw and abuts against the right shank.

3. The crankshaft assembly with a detachable connecting rod journal as described in claim 2, characterized in that: The left handle has a left hole located on the side of the left handle near the mounting screw and engages with the mounting screw. The right handle has a right hole located on the side of the right handle near the mounting screw and engages with the mounting screw.

4. The crankshaft assembly with a detachable connecting rod journal as described in claim 1, characterized in that: The connecting rod journal has a left cavity, which is located on the side of the connecting rod journal near the left rectangular block and mates with the left rectangular block; the connecting rod journal also has a right cavity, which is located on the side of the connecting rod journal near the right rectangular block and mates with the right rectangular block.

5. The crankshaft assembly with a detachable connecting rod journal as described in claim 1, characterized in that: The structural assembly further includes a limiting rod, a limiting cylinder, a mounting rod, and a mounting cylinder. The limiting cylinder is fixedly connected to the left handle and is located on the side of the left handle near the connecting rod journal. The limiting rod is slidably connected to the limiting cylinder and is fixedly connected to the connecting rod journal. The mounting cylinder is fixedly connected to the right handle and is located on the side of the right handle near the connecting rod journal. The mounting rod is slidably connected to the mounting cylinder and is fixedly connected to the connecting rod journal.

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