Crankshaft with oil pump gear

Abstract

The utility model relates to the technical field of oil pumps, in particular to a crankshaft with an oil pump gear, which comprises a left crank, a right crank, a connecting rod journal and a lubricating device, the lubricating device comprises a bearing sleeve, a connecting rod body, an oil pump gear assembly and a bearing assembly, the bearing sleeve is rotatably connected with the connecting rod journal, and the connecting rod body is rotatably connected with the outer side wall of the bearing sleeve. The oil pump tooth assembly is arranged on the right crank, the bearing assemblies are arranged on the left crank and the right crank respectively, the oil pump tooth assembly is arranged on the right crank, and the bearing assemblies are arranged on the left crank and the right crank, so that when the crankshaft is used, lubricating oil enters the bearing sleeves through the oil pump tooth assembly, and under the action of the bearing assemblies, the lubricating oil can enter the bearing sleeves. And the rotary friction surfaces of the intermediate gear and the bearing sleeve are fully lubricated, so that the abrasion of the intermediate gear is reduced, the service life of the intermediate gear is effectively prolonged, and the service life of the oil pump is further prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of oil pumps, in particular to a crankshaft with an oil pump gear. Background Art

[0002] The current crankshaft is prone to jamming during use, which can easily cause problems and make it impossible to guarantee the performance of the engine. In severe cases, the engine may even fail to operate normally.

[0003] Prior art CN207261458U discloses a crankshaft-connecting rod assembly, comprising a left crank, a right crank, and a connecting rod journal arranged between the left crank and the right crank, a bearing sleeve being provided on the outer sleeve of the connecting rod journal, a left main journal being provided on the left side of the left crank, and a right main journal being provided on the right side of the right crank, a connecting rod being connected with the bearing sleeve, and the bearing sleeve being connected to the connecting rod journal through a bearing, a connector being provided at one end of the connecting rod, a through-hole being provided at the middle position of the connecting rod, a rubber block being provided in the through-hole, a transverse buffer hole being provided in the middle of the rubber block passing through the rubber block, a left shock-absorbing block and a right shock-absorbing block being symmetrical to each other being provided on both sides of the transverse buffer hole, a positive ball being placed in the middle of the transverse buffer hole, when in use, the rubber block can provide preliminary buffering and shock-absorbing for the vibration force, and the remaining vibration force will be fully concentrated on the positive ball, and the positive ball will float up and down or left and right due to the vibration force, no matter whether the positive ball floats up and down or left and right, the positive magnetic plate will form a repulsive force to buffer and shock the positive ball, thereby ensuring the performance of the engine.

[0004] However, when the above method is used, the crankshaft connecting rod is directly installed on the oil pump body, and only a single support structure can be adopted, which leads to problems such as poor wear resistance and poor human touch during use, affecting the performance and service life of the oil pump. Utility Model Content

[0005] The purpose of the utility model is to provide a crankshaft with an oil pump gear, which can increase the wear resistance of the intermediate gear and provide sufficient lubrication during the use of the crankshaft, effectively improve the service life of the crankshaft, and thus improve the performance and service life of the oil pump.

[0006] To achieve the above object, the present invention provides a crankshaft with an oil pump gear, comprising a left crank, a right crank and a connecting rod journal, wherein the connecting rod journal is provided between the left crank and the right crank, and further comprising a lubricating device;

[0007] The lubrication device includes a bearing sleeve, a connecting rod body, an oil pump gear assembly and a bearing assembly. The bearing sleeve is rotatably connected to the connecting rod journal and is located between the left crank and the right crank. The connecting rod body is rotatably connected to the outer side wall of the bearing sleeve and is located on one side of the bearing sleeve. The oil pump gear assembly is arranged on the right crank, and the bearing assemblies are respectively arranged on the left crank and the right crank.

[0008] Wherein, the oil pump gear assembly includes an oil pump gear and a crank pin. The oil pump gear is arranged on the side of the right crank away from the left crank; the crank pin is arranged between the right crank and the left crank.

[0009] Wherein, the bearing assembly includes a rolling bearing and a needle bearing, the rolling bearing is arranged on the side of the left crank away from the right crank; the needle bearing is arranged on the crank pin.

[0010] Wherein, the bearing assembly further includes a timing sprocket and a steel ball. The timing sprocket is arranged on the side of the left crank away from the right crank; the steel ball is arranged on the right crank.

[0011] Wherein, the left crank is provided with a semicircular key, and the semicircular key is detachably mounted on the left crank.

[0012] The utility model discloses a crankshaft with an oil pump gear, comprising a left crank, a right crank, a connecting rod journal and a lubricating device, wherein the lubricating device comprises a bearing sleeve, a connecting rod body, an oil pump gear assembly and a bearing assembly. By arranging the oil pump gear assembly on the right crank and arranging the bearing assembly on the left crank and the right crank, when the crankshaft is used, lubricating oil enters the bearing sleeve through the oil pump gear assembly, and under the action of the bearing assembly, the rotating friction surface of the intermediate gear and the bearing sleeve is fully lubricated, thereby reducing the wear of the intermediate gear, effectively increasing the service life of the intermediate gear, and further increasing the service life of the oil pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art.

[0014] Figure 1 It is a schematic diagram of the overall structure of a crankshaft with an oil pump gear according to the first embodiment of the present invention.

[0015] Figure 2 It is a structural diagram of the lubrication device of the first embodiment of the present utility model.

[0016] Figure 3 It is an overall front view of the crankshaft with the oil pump gear according to the first embodiment of the present invention.

[0017] Figure 4 It is a cross-sectional view of a crankshaft with an oil pump gear according to the first embodiment of the present invention.

[0018] In the figure: 101-left crank, 102-right crank, 103-connecting rod journal, 104-bearing sleeve, 105-connecting rod body, 106-oil pump gear, 107-crank pin, 108-rolling bearing, 109-needle bearing, 110-timing sprocket, 111-steel ball, 112-semi-wood key. DETAILED DESCRIPTION

[0019] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0020] The first embodiment of this application is:

[0021] See also Figures 1 to 4 ,in Figure 1 This is a schematic diagram of the overall structure of the crankshaft with the oil pump gear 106. Figure 2 It is a structural diagram of the lubrication device. Figure 3 This is the overall front view of the crankshaft with the oil pump gear. Figure 4 This is a cross-sectional view of a crankshaft with an oil pump gear. The present invention provides a crankshaft with an oil pump gear 106, comprising a left crank 101, a right crank 102, a connecting rod journal 103, and a lubricating device. The lubricating device comprises a bearing sleeve 104, a connecting rod body 105, an oil pump gear assembly, and a bearing assembly. The oil pump gear assembly comprises an oil pump gear 106 and a crank pin 107. The bearing assembly comprises a rolling bearing 108, a needle bearing 109, a timing sprocket 110, and a steel ball 112. The left crank 101 is provided with a woodruff key 113. The above-mentioned solution solves the problem that during the use of the crankshaft, the crankshaft connecting rod is directly installed on the oil pump body, and can only adopt a single support structure, which leads to the problem of poor wear resistance and poor communication during use, affecting the performance and service life of the oil pump. It can be understood that the above-mentioned solution can be used to increase the wear resistance of the intermediate gear and provide sufficient lubrication during the use of the crankshaft, effectively improve the service life of the crankshaft, thereby improving the performance and service life of the oil pump, and can also be used to facilitate the control of the inlet and outlet of lubricating oil.

[0022] According to this specific embodiment, the connecting rod journal 103 is provided between the left crank 101 and the right crank 102. The connecting rod journal 103 is provided between the left crank 101 and the right crank 102. The bearing sleeve 104 is rotatably connected to the connecting rod journal 103 and is located between the left crank 101 and the right crank 102. The connecting rod body 105 is rotatably connected to the outer side wall of the bearing sleeve 104 and is located on one side of the bearing sleeve 104. The oil pump gear assembly is provided on the right crank 101. On the crank 102, the bearing assembly is respectively arranged on the left crank 101 and the right crank 102, the outer sleeve of the connecting rod journal 103 is provided with the bearing sleeve 104, the left side of the left crank 101 is provided with a left main journal, and the right side of the right crank 102 is provided with a right main journal. The bearing sleeve 104 is connected to the connecting rod body 105, and the bearing sleeve 104 is connected to the connecting rod journal 103 through a bearing. A connector is provided at one end of the connecting rod body 105, and a through hole is provided in the middle of the connecting rod body 105. A hole is provided in the through hole, and a rubber block is provided in the middle of the rubber block. A transverse buffer hole is provided through the rubber block, and symmetrical left and right shock-absorbing blocks are provided on both sides of the transverse buffer hole. A positive ball is placed in the middle of the transverse buffer hole. When in use, the rubber block can perform preliminary buffering and shock absorption on the vibration force, and the remaining vibration force will be all concentrated on the positive ball. The positive ball will float up and down or left and right under the vibration force. Regardless of whether the positive ball floats up and down or left and right, the positive magnetic plate will form a repulsive force to buffer and shock the positive ball, thereby ensuring the performance of the engine. By arranging the oil pump gear assembly on the right crank 102, and by arranging the bearing assembly on the left crank 101 and the right crank 102, when this crankshaft is used, the lubricating oil enters the bearing sleeve 104 through the oil pump gear assembly, and under the action of the bearing assembly, the rotating friction surface of the intermediate gear and the bearing sleeve 104 is fully lubricated, thereby reducing the wear of the intermediate gear, effectively improving the service life of the intermediate gear, and thus improving the service life of the oil pump.

[0023] Among them, the oil pump gear 106 is arranged on the side of the right crank 102 away from the left crank 101; the crank pin 107 is arranged between the right crank 102 and the left crank 101, the oil pump gear 106 is arranged on the right side of the right crank 102, and the crank pin 107 is located between the right crank 102 and the left crank 101. An oil hole is provided on the oil pump gear 106, so that the lubricating oil can enter the oil pump gear 106 through the oil hole, and then the lubricating oil is transported to the crank pin 107 by the operation of the oil pump gear 106, so that the crank pin 107 lubricates the bearing sleeve 104, so that the rotating friction surface of the bearing sleeve 104 is fully lubricated to reduce wear.

[0024] At the same time, the rolling bearing 108 is arranged on the side of the left crank 101 away from the right crank 102; the needle bearing 109 is arranged on the crank pin 107; the timing sprocket 110 is arranged on the side of the left crank 101 away from the right crank 102; the steel ball 112 is arranged on the right crank 102, the needle bearing 109 is arranged on the left crank 101, the needle bearing 109 is arranged on the crank pin 107, and during the lubrication process of the crank pin 107, the needle bearing 109 can be lubricated, so that the needle bearing 109 transfers the lubricating fluid to the rolling bearing 108, and the timing sprocket 110 is arranged on the left crank 101, so that the rolling bearing 108 can lubricate the timing chain during the lubrication operation. The wheel 110 is lubricated, and the steel ball 112 is arranged on the side of the right crank 102 close to the left crank 101, so that the lubricating oil in the oil pump gear 106 enters the crank pin 107 under the rolling of the steel ball 112, and the lubricating oil fully contacts the crank pin 107, and then reaches the inner surface of the timing sprocket 110 through the rolling bearing 108, which plays a role in full lubrication. When the bearing sleeve 104 is rotated, there is a gap between the bearing sleeve 104 and the crank pin 107, so that the lubricating oil can enter the gap, so that the gap is filled with lubricating oil, so that when the intermediate gear rotates around the crank pin 107 together with the bearing sleeve 104, the rotating friction surface can be fully lubricated, thereby reducing wear and improving the service life of the oil pump.

[0025] At the same time, the semicircular key 113 can be detachably mounted on the left crank 101. The semicircular key 113 is arranged on the outer surface of the left crank 101. The semicircular key 113 can be pressed to open and close the rolling bearing 108 and the timing sprocket 110 on the left crank 101, so that the rolling bearing 108 and the timing sprocket 110 are fully lubricated, and then the rotating friction surface of the bearing sleeve 104 and the crank pin 107 are fully lubricated, and the operation is simple.

[0026] When using a crankshaft with an oil pump gear 106 of this embodiment, by arranging the oil pump gear assembly on the right crank 102, and by arranging the bearing assembly on the left crank 101 and the right crank 102, when using this crankshaft, lubricating oil enters the bearing sleeve 104 through the oil pump gear assembly, and under the action of the bearing assembly, the rotating friction surface of the intermediate gear and the bearing sleeve 104 is fully lubricated, thereby reducing the wear of the intermediate gear, effectively improving the service life of the intermediate gear, and further improving the service life of the oil pump.

[0027] The above disclosure is merely one or more preferred embodiments of the present application and is not intended to limit the scope of the present application. A person skilled in the art will understand that all or part of the processes of the above embodiments and equivalent changes made in accordance with the claims of the present application are still within the scope of the present application.

Claims

1. A crankshaft with an oil pump gear, comprising a left crank, a right crank and a connecting rod journal, wherein the connecting rod journal is provided between the left crank and the right crank, characterized in that: Also includes a lubrication device; The lubrication device includes a bearing sleeve, a connecting rod body, an oil pump gear assembly and a bearing assembly. The bearing sleeve is rotatably connected to the connecting rod journal and is located between the left crank and the right crank. The connecting rod body is rotatably connected to the outer side wall of the bearing sleeve and is located on one side of the bearing sleeve. The oil pump gear assembly is arranged on the right crank, and the bearing assemblies are respectively arranged on the left crank and the right crank.

2. The crankshaft with oil pump gear according to claim 1, characterized in that: The oil pump gear assembly includes an oil pump gear and a crank pin. The oil pump gear is arranged on a side of the right crank away from the left crank; the crank pin is arranged between the right crank and the left crank.

3. The crankshaft with oil pump gear according to claim 2, characterized in that: The bearing assembly includes a rolling bearing and a needle bearing. The rolling bearing is arranged on the side of the left crank away from the right crank; the needle bearing is arranged on the crank pin.

4. The crankshaft with oil pump gear according to claim 1, wherein: The bearing assembly further comprises a timing sprocket and a steel ball. The timing sprocket is arranged on a side of the left crank away from the right crank; the steel ball is arranged on the right crank.

5. The crankshaft with oil pump gear according to claim 1, wherein: The left crank is provided with a semicircular key, and the semicircular key is detachably mounted on the left crank.

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