Crankshaft assembly with multi-channel cooling

Abstract

The utility model relates to a crankshaft transmission mechanism technical field, concretely relates to a kind of crankshaft assembly with multi-channel cooling;Including connecting rod journal, crank and auxiliary mechanism, auxiliary mechanism includes first main journal, second main journal, gear, fixed device and anti-loosening device, crank and connecting rod journal both sides end position symmetry is provided with oil guide groove, and upside is set as plane, L-shaped oil guide is provided on crank, it is connected with piston rod by connecting rod journal when driving, the reciprocating motion of piston rod upside-down is converted into the rotary motion of first main journal and second main journal, finally power is transmitted to working element by gear, the upside of the end of crank close to connecting rod journal is plane structure, it is convenient for lubricating oil to enter into connecting rod journal, with good lubricating effect, in turn can when crankshaft assembly work uses, it is convenient for lubricating oil to enter into connecting rod journal, conducive to the stability of the stability of crankshaft assembly transmission work.

Description

Technical Field

[0001] This utility model relates to the field of crankshaft transmission mechanism technology, and in particular to a crankshaft assembly with multi-channel cooling. Background Technology

[0002] Crankshaft drive structures are common mechanical transmission structures. For example, prior art with application number CN200320109374.4 discloses a decompression mechanism for a four-stroke engine used in lawnmowers. It includes an engine block, valve operating chamber, intake and exhaust valves, crankshaft, follower arm, camshaft, timing gear, and centrifugal blocks I and II installed in the timing gear slot. Its characteristic is that the engine valve switching cam and the crankshaft-driven cam timing gear form a single unit on one end face, while the other end face has an arc-shaped hole. A decompression block extends from the arc-shaped hole and inserts into the cam, engaging with the centrifugal block on the cam timing gear. When the pressure is high, the exhaust valve can open slightly, appropriately reducing the pressure inside the combustion chamber, thus reducing the workload of the engine during operation and achieving easy engine starting.

[0003] However, the upper end of the crankshaft is an arc-shaped surface, so lubricating oil cannot easily enter between the connecting rod and the crankshaft connecting rod journal, resulting in poor lubrication between the connecting rod and the crankshaft connecting rod journal, which affects the stability of the transmission. Utility Model Content

[0004] The purpose of this invention is to provide a crankshaft assembly with multi-channel cooling, which facilitates the entry of lubricating oil into the connecting rod journal during crankshaft assembly operation, thereby improving the stability of crankshaft assembly transmission.

[0005] To achieve the above objectives, this utility model provides a crankshaft assembly with multi-channel cooling, including a connecting rod journal, with cranks provided on both sides of the connecting rod journal, and also includes an auxiliary mechanism;

[0006] The auxiliary mechanism includes a first main journal, a second main journal, a gear, a fixing device, and an anti-loosening device. The first main journal is connected to the crank on the left side, and the second main journal is connected to the crank on the right side and is coaxially arranged with the first main journal. The gear is installed on the connecting part of the first main journal through the fixing device, and the anti-loosening device is arranged on one side of the fixing device.

[0007] The crank and the connecting rod journal are symmetrically provided with oil guide grooves at both ends, and the upper side is set as a plane;

[0008] The crank is provided with an L-shaped oil guide channel.

[0009] The fixing device includes a spacer ring and a locking screw ring. The spacer ring is detachably connected to the connecting part of the first main journal and is sleeved on the connecting part of the first main journal. The locking screw ring is threaded to the external thread end on the connecting part of the first main journal and abuts against the spacer ring.

[0010] The anti-loosening device includes an anti-loosening thread ring and a sun-shaped washer. The anti-loosening thread ring is threadedly connected to the external thread end on the connecting part of the first main journal and abuts against one side of the locking thread ring. The sun-shaped washer is detachably connected to the connecting part of the first main journal and the anti-loosening thread ring, and is located on the connecting part of the first main journal.

[0011] The first main journal is provided with a mating key on its connecting part.

[0012] The mating key can be a flat key or a semi-circular key.

[0013] This invention relates to a crankshaft assembly with multi-channel cooling. Both ends of the connecting rod journal are connected to one end of the first and second main journals respectively via cranks. The upper surface of the crank near the connecting rod journal is flat and has an oil guide groove. An L-shaped oil guide channel is also provided on the crank. During transmission, the crank is connected to the piston rod of the internal combustion engine via the connecting rod journal, converting the reciprocating motion of the piston rod into the rotational motion of the first and second main journals. Finally, the power is transmitted to the working components via gears. The flat upper surface of the crank near the connecting rod journal facilitates the entry of lubricating oil into the connecting rod journal, resulting in better lubrication. Furthermore, the L-shaped oil guide channel on the crank can effectively lubricate other working parts that cooperate with the transmission crankshaft, thereby making the transmission smoother. This also facilitates the entry of lubricating oil into the connecting rod journal during crankshaft assembly operation, improving the stability of the crankshaft assembly's transmission operation. Attached Figure Description

[0014] 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.

[0015] Figure 1 This is a schematic diagram of the overall structure of the crankshaft assembly with multi-channel cooling according to this utility model.

[0016] Figure 2 This is a schematic diagram of the L-shaped oil guide channel of this utility model.

[0017] In the diagram: 101-connecting rod journal, 102-crank, 103-first main journal, 104-second main journal, 105-gear, 106-oil guide groove, 107-L-shaped oil guide channel, 108-spacer ring, 109-locking screw ring, 110-anti-loosening screw ring, 111-sun-shaped washer, 112-fitting key. Detailed Implementation

[0018] 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.

[0019] like Figure 1 and Figure 2 As shown, where Figure 1 This is a schematic diagram of the overall structure of a crankshaft assembly with multi-channel cooling. Figure 2 This is a schematic diagram of the L-shaped oil guide channel 107. This utility model provides a crankshaft assembly with multi-channel cooling: it includes a connecting rod journal 101, a crank 102, and an auxiliary mechanism. The auxiliary mechanism includes a first main journal 103, a second main journal 104, a gear 105, a fixing device, and an anti-loosening device. The fixing device includes a spacer ring 108 and a locking screw ring 109, and the anti-loosening device includes an anti-loosening screw ring 110 and a sun-shaped washer 111. This design facilitates the entry of lubricating oil into the connecting rod journal 101 during crankshaft assembly operation, improving the stability of the crankshaft assembly's transmission. It is understood that this design facilitates the entry of lubricating oil into the connecting rod journal 101 during crankshaft assembly operation, improving the stability of the crankshaft assembly's transmission and achieving stable transmission.

[0020] In this embodiment, cranks 102 are provided on both sides of the connecting rod journal 101, and the connecting rod journal 101 is connected to the piston rod of the internal combustion engine when it is working.

[0021] The first main journal 103 is connected to the left crank 102, and the second main journal 104 is connected to the right crank 102 and coaxially arranged with the first main journal 103. The gear 105 is mounted on the connecting part of the first main journal 103 through the fixing device, and the anti-loosening device is arranged on one side of the fixing device. Both ends of the connecting rod journal 101 are connected to one end of the first main journal 103 and the second main journal 104 respectively through the crank 102. After installation, the axis of the connecting rod journal 101 is located on one side of the axis of the coaxially arranged first main journal 103 and second main journal 104. The gear 105 is mounted on the connecting part of the first main journal 103 through the fixing device, and the anti-loosening device is used to prevent the fixing device from loosening, ensuring the stability of the gear 105 during transmission.

[0022] The crank 102 and the connecting rod journal 101 are symmetrically provided with oil guide grooves 106 at both ends, and the upper side is set as a plane. By setting the upper side of the crank 102 near the connecting rod journal 101 as a plane, and setting both sides at the same time, the lubricating oil can be directly allowed to enter the connecting rod journal 101, and the oil guide grooves 106 are used to guide the oil.

[0023] The crank 102 is provided with an L-shaped oil guide channel 107. Both cranks 102 are respectively provided with the L-shaped oil guide channel 107. During transmission, the L-shaped oil guide channel 107 allows oil to pass through, thereby effectively lubricating other working parts that cooperate with the transmission crankshaft. That is, it allows contact lubrication of components that slide against the outer surface of the crank 102, further making the transmission smoother.

[0024] Secondly, the spacer ring 108 is detachably connected to the connecting part of the first main journal 103 and is sleeved on the connecting part of the first main journal 103; the locking screw ring 109 is threadedly connected to the external thread end on the connecting part of the first main journal 103 and abuts against the spacer ring 108. A keyway is provided on the connecting part of the first main journal 103, and a flat key is installed in the keyway to facilitate the fitting of the gear 105. After the gear 105 is fitted, the right side of the connecting part of the first main journal 103 is a stepped part that can be used for limiting, the spacer ring 108 is fitted on the left side, and then the locking screw ring 109 is installed for abutment, thereby fixing the gear 105 and preventing it from moving during transmission. The two end faces of the spacer ring 108 will be ground by a surface grinder to ensure flatness.

[0025] Then, the anti-loosening threaded ring 110 is threadedly connected to the external threaded end on the connecting part of the first main journal 103 and abuts against one side of the locking threaded ring 109; the sun-shaped washer 111 is detachably connected to the connecting part of the first main journal 103 and the anti-loosening threaded ring 110 respectively, and is located on the connecting part of the first main journal 103. After the locking ring 109 is installed, the anti-loosening ring 110 is installed to prevent loosening. Furthermore, a rectangular groove is provided on the external thread end of the connecting part of the first main shaft journal 103 to facilitate the L-shaped end of the inner hole side of the sun-shaped washer 111 to slide in. Then, a mating groove is provided on the outside of the anti-loosening ring 110. After the anti-loosening ring 110 is installed, the sun-shaped washer 111 can be slidably installed. Finally, the rectangular piece on the upper edge of the outer ring of the sun-shaped washer 111 is inserted into the rectangular cavity at the corresponding mating position on the edge of the anti-loosening ring 110 in an L-shape, thereby performing the anti-rotation treatment of the anti-loosening ring 110 and further ensuring the good stability of the gear 105.

[0026] Furthermore, a mating key 112 is provided on the connecting portion of the first main journal 103. The mating key 112 is used for the installation and setting of other auxiliary parts.

[0027] Finally, the mating key 112 can be a flat key or a semi-circular key. Since flat keys and semi-circular keys have different advantages and disadvantages during transmission, the purpose of this configuration is to facilitate diverse applications of the crankshaft assembly. When a flat key is selected for the mating key 112, a rectangular keyway can be directly provided on the connecting part of the first main journal 103. When a semi-circular key is selected for the mating key 112, a semi-circular keyway can be directly provided on the connecting part of the first main journal 103.

[0028] When using this invention in the crankshaft assembly, it facilitates the entry of lubricating oil into the connecting rod journal 101, thereby improving the stability of the crankshaft assembly transmission. In this application, the crankshaft assembly is connected to the piston rod of the internal combustion engine via the connecting rod journal 101, converting the reciprocating motion of the piston rod into the rotational motion of the first main journal 103 and the second main journal 104. Finally, the power is transmitted to the working elements via the gear 105. The upper side of the crank 102 near the connecting rod journal 101 is a planar structure, facilitating the entry of lubricating oil into the connecting rod journal 101, providing good lubrication and improving transmission stability. Furthermore, the L-shaped oil guide channel 107 provided on the crank 102 can effectively lubricate other working parts that cooperate with the crankshaft, further smoothing the transmission. This ensures that lubricating oil can easily enter the connecting rod journal 101 during crankshaft assembly operation, thus improving the stability of the crankshaft assembly transmission.

[0029] 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 all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A crankshaft assembly with multi-channel cooling, comprising a connecting rod journal, wherein cranks are disposed on both sides of the connecting rod journal, characterized in that: It also includes auxiliary mechanisms; The auxiliary mechanism includes a first main journal, a second main journal, a gear, a fixing device, and an anti-loosening device. The first main journal is connected to the crank on the left side, and the second main journal is connected to the crank on the right side and is coaxially arranged with the first main journal. The gear is installed on the connecting part of the first main journal through the fixing device, and the anti-loosening device is arranged on one side of the fixing device. The crank and the connecting rod journal are symmetrically provided with oil guide grooves at both ends, and the upper side is set as a plane; The crank is provided with an L-shaped oil guide channel.

2. The crankshaft assembly with multi-channel cooling as described in claim 1, characterized in that: The fixing device includes a spacer ring and a locking screw ring. The spacer ring is detachably connected to the connecting part of the first main journal and is sleeved on the connecting part of the first main journal. The locking screw ring is threaded to the external thread end on the connecting part of the first main journal and abuts against the spacer ring.

3. The crankshaft assembly with multi-channel cooling as described in claim 2, characterized in that: The anti-loosening device includes an anti-loosening thread ring and a sun-shaped washer. The anti-loosening thread ring is threadedly connected to the external thread end on the connecting part of the first main journal and abuts against one side of the locking thread ring. The sun-shaped washer is detachably connected to the connecting part of the first main journal and the anti-loosening thread ring, and is located on the connecting part of the first main journal.

4. The crankshaft assembly with multi-channel cooling as described in claim 1, characterized in that: A mating key is provided on the connecting part of the first main journal.

5. The crankshaft assembly with multi-channel cooling as described in claim 4, characterized in that... : The mating key can be a flat key or a semi-circular key.

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