Transmission mechanism

Abstract

The invention discloses a transmission mechanism, and relates to the technical field of chain wheels, the transmission mechanism comprises a mounting plate, a first adjusting assembly, a second adjusting assembly and a chain wheel, the first adjusting assembly is arranged on the mounting plate, and the adjusting direction of the first adjusting assembly is parallel to the surface of the mounting plate; the second adjusting assembly is arranged at the moving end of the first adjusting assembly, the second adjusting assembly is sleeved with a bearing, and the adjusting direction of the second adjusting assembly is perpendicular to the surface of the mounting plate; the chain wheel is arranged at the end, away from the mounting plate, of the second adjusting assembly in a sleeving mode through the bearing, an oil outlet channel is formed in the tooth bottom between every two adjacent wheel teeth of the chain wheel in a penetrating mode, and a first inner ring groove is formed between the chain wheel and the end face, away from the mounting plate, of the bearing. And oil guide grooves are formed between the first inner ring groove and all the oil outlet channels for communication. The chain wheel oiling device can improve the chain wheel oiling uniformity and is convenient to operate.

Description

Technical Field

[0001] The present application relates to the technical field of sprockets, and in particular to a transmission mechanism. Background Art

[0002] During long-term use, the chain needs to be lubricated. If the chain is not lubricated, there will be a large friction between the sprocket and the chain, and the chain will break easily. If the friction between the sprocket and the chain is large, it will also produce a harsh metal friction sound, affecting the working environment. Therefore, the staff needs to lubricate the chain regularly to increase its service life.

[0003] In the prior art, the method for improving the lubrication of the chain is usually to manually drip lubricating oil onto the sprocket. If batch maintenance of the chain is required, the chain can also be placed in a drive chain lubrication device, and the lubricating oil can be squeezed out through a lubrication gun in the device to reduce the working friction of the chain.

[0004] However, the manual method may easily lead to uneven application of lubricating oil, while the method of lubricating by external device is troublesome to operate and requires external device. Therefore, the current method of dripping lubricating oil on the chain has the defects of uneven application or troublesome operation. Summary of the invention

[0005] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a transmission mechanism that can improve the uniformity of oiling the sprocket and is easy to operate.

[0006] The present application provides a transmission mechanism, comprising:

[0007] Mounting plate;

[0008] A first adjustment component, wherein the first adjustment component is disposed on the mounting plate, and an adjustment direction of the first adjustment component is parallel to a surface of the mounting plate;

[0009] A second adjusting component, wherein the second adjusting component is arranged at the moving end of the first adjusting component, and a bearing is sleeved on the second adjusting component, and an adjusting direction of the second adjusting component is perpendicular to the surface of the mounting plate;

[0010] A sprocket, wherein the sprocket is sleeved on the end of the second adjustment assembly away from the mounting plate through the bearing, an oil outlet channel is penetrated through the tooth bottom between each two adjacent teeth of the sprocket, a first inner ring groove is provided between the sprocket and the end surface of the bearing away from the mounting plate, and oil guide grooves are respectively provided between the first inner ring groove and all the oil outlet channels.

[0011] The transmission mechanism according to the embodiment of the present application has at least the following beneficial effects: the first adjusting component is arranged on the mounting plate, the second adjusting component is arranged at the movable end of the first adjusting component, the sprocket is arranged on the second adjusting component through a bearing sleeve, the first adjusting component is used to adjust the position of the second adjusting component, driving the second adjusting component and the sprocket to move in a direction parallel to the surface of the mounting plate, the second adjusting component is used to adjust the sprocket to move in a direction perpendicular to the surface of the mounting plate, and the position of the sprocket is adjusted by the first adjusting component and the second adjusting component, so that the tension of the chain wound around the sprocket can be changed to adapt to different chains and different application scenarios. On the other hand, the sprocket is provided with an oil outlet channel at the bottom of the tooth between every two gear teeth, and a first inner ring groove is provided between the sprocket and the bearing. When in use, the sprocket drives the chain to move by dripping lubricating oil into the first inner ring groove, and the lubricating oil flows along the oil guide groove to the oil outlet channel. Due to the centrifugal effect generated when the sprocket rotates, the lubricating oil can be thrown out from the corresponding oil outlet channel and applied to the chain, thereby improving the chain oiling efficiency. At the same time, the first inner ring groove is connected with all the oil guide grooves, so that the lubricating oil can flow evenly into each oil guide groove. During the rotation process, the lubricating oil is applied to each corresponding chain section through the oil outlet channel, thereby improving the uniformity of oiling. In addition, the solution of the present application can complete the process of adding lubricating oil through the sprocket itself, without the need for complex peripheral equipment to assist or the need to remove the chain and place it in other equipment for maintenance, and is easy to operate.

[0012] According to some embodiments of the present application, a second inner ring groove is further provided on the inner side of the sprocket, the second inner ring groove is connected to all the oil outlet channels, and the first inner ring groove and the second inner ring groove are connected through the oil guide groove.

[0013] According to some embodiments of the present application, the first adjustment component includes an adjusting bolt, a movable boss and a connecting shaft. The mounting plate is provided with a movable long hole. The adjusting bolt can be rotatably inserted in the mounting plate and passes through both ends of the movable long hole. The movable boss is arranged in the movable long hole and is threadedly sleeved on the adjusting bolt. When the adjusting bolt rotates, it is used to drive the movable boss to translate in the movable long hole. The connecting shaft is arranged on the surface of the adjusting bolt, and the second adjustment component is sleeved on the connecting shaft.

[0014] According to some embodiments of the present application, the first adjustment assembly also includes a clamping structure, the adjustment bolt is provided with a slot, and the clamping structure is arranged on the surface of the mounting plate and clamped in the slot.

[0015] According to some embodiments of the present application, the second adjustment assembly includes an inner support and an outer support, the inner support is sleeved on the connecting shaft, and a limiting structure is provided between the inner support and the connecting shaft, the limiting structure is used to limit the circumferential rotation of the inner support along the connecting shaft, the outer support is threadedly sleeved on the lower part of the inner support, and the bearing is sleeved on the upper part of the inner support.

[0016] According to some embodiments of the present application, the limiting structure includes a limiting groove and a limiting bolt provided along the length direction of the connecting shaft, and the limiting bolt passes through the inner support and is clamped in the limiting groove.

[0017] According to some embodiments of the present application, the first adjustment component also includes a limiting ring sleeved on the outer support and abutted against the mounting plate, and limiting ears are provided on both sides of the limiting ring extending in the direction of the movable long hole, and the limiting ears are sleeved on the adjusting bolt.

[0018] According to some embodiments of the present application, the second adjustment assembly further includes a nut, which is sleeved on an end of the connecting shaft away from the mounting plate and abuts against the bearing.

[0019] According to some embodiments of the present application, a retaining spring is provided on the inner side of the sprocket, and the retaining spring abuts against an end of the bearing close to the mounting plate.

[0020] According to some embodiments of the present application, a seal is provided between the inner ring and the outer ring of the bearing, and the seal is used to prevent lubricating oil from flowing to the balls of the bearing.

[0021] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0023] Figure 1 A schematic diagram of the structure of a transmission mechanism provided in some embodiments of the present application;

[0024] Figure 2 A schematic cross-sectional view of a transmission mechanism provided in some embodiments of the present application;

[0025] Figure 3 An exploded schematic diagram of a transmission mechanism provided in some embodiments of the present application;

[0026] Figure 4 A schematic diagram of the structure of the transmission mechanism provided in some embodiments of the present application when in use;

[0027] Figure 5 A diagram of the internal structure of a sprocket provided in some embodiments of the present application.

[0028] The figures are as follows:

[0029] Mounting plate 100; movable long hole 110; mounting hole 120; adjusting bolt 210; slot 211; movable boss 220; connecting shaft 230; clamping structure 240; limiting ring 250; limiting ear 251; inner support 310; outer support 320; limiting slot 331; limiting bolt 332; nut 340; sprocket 400; oil outlet channel 410; first inner ring groove 420; oil guide groove 430; second inner ring groove 440; retaining ring 450; bearing 460; oil drip tube 500. DETAILED DESCRIPTION

[0030] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0031] In the description of the present application, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0032] In the description of this application, if there is a description of first or second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0033] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0034] During the long-term use of the chain, the chain needs to be lubricated. If the chain is not lubricated, a large friction will be generated between the sprocket and the chain, and the chain is easy to break. If the friction between the sprocket and the chain is large, a harsh metal friction sound will also be generated, affecting the working environment. Therefore, the staff needs to lubricate the chain regularly to increase its service life. In the prior art, the method of improving the lubrication of the chain is usually to manually drip lubricating oil to the sprocket. If the chain needs to be maintained in batches, the chain can also be placed in a drive chain lubrication device, and the lubricating oil can be squeezed out through the lubrication gun in the device to achieve the effect of reducing the working friction of the chain. However, the above-mentioned manual method is prone to uneven application of the lubricating oil, and the method of lubricating by an external device is more troublesome to operate and requires the help of an external device. Therefore, the current method of dripping lubricating oil on the chain has the defects of unevenness or troublesome operation.

[0035] Based on this, the present application provides a transmission mechanism to solve the above-mentioned technical problems. The technical solutions proposed in the present application are explained one by one below.

[0036] Reference Figure 1 The present application provides a transmission mechanism, including a mounting plate 100, a first adjusting component, a second adjusting component and a sprocket 400, wherein the first adjusting component is arranged on the mounting plate 100, and the adjustment direction of the first adjusting component is parallel to the surface of the mounting plate 100; the second adjusting component is arranged at the movable end of the first adjusting component, and a bearing 460 is sleeved on the second adjusting component, and the adjustment direction of the second adjusting component is perpendicular to the surface of the mounting plate 100; the sprocket 400 is sleeved on the end of the second adjusting component away from the mounting plate 100 through the bearing 460, and an oil outlet channel 410 is penetrated at the bottom of the teeth between each two adjacent teeth of the sprocket 400, and a first inner ring groove 420 is arranged between the end surface of the sprocket 400 and the bearing 460 away from the mounting plate 100, and an oil guide groove 430 is respectively arranged between the first inner ring groove 420 and all the oil outlet channels 410 for communication.

[0037] The first adjusting component is arranged on the mounting plate 100, the second adjusting component is arranged at the movable end of the first adjusting component, the sprocket 400 is sleeved on the second adjusting component through the bearing 460, the first adjusting component is used to adjust the position of the second adjusting component, driving the second adjusting component and the sprocket 400 to move in a direction parallel to the surface of the mounting plate 100, and the second adjusting component is used to adjust the sprocket 400 to move in a direction perpendicular to the surface of the mounting plate 100. The position of the sprocket 400 is adjusted by the first adjusting component and the second adjusting component, so that the tension of the chain wound around the sprocket 400 can be changed to adapt to different chains and different application scenarios. On the other hand, the sprocket 400 is provided with an oil outlet channel 410 at the bottom of the tooth between every two gear teeth, and a first inner ring groove 420 is provided between the sprocket 400 and the bearing 460. When in use, the sprocket 400 drives the chain to move by dripping lubricating oil into the first inner ring groove 420, and the lubricating oil flows along the oil guide groove 430 to the oil outlet channel 410. Due to the centrifugal effect generated when the sprocket 400 rotates, the lubricating oil can be thrown out from the corresponding oil outlet channel 410 and applied to the chain, thereby improving the efficiency of chain oiling. At the same time, the first inner ring groove 420 is connected with all the oil guide grooves 430, so that the lubricating oil can flow evenly into each oil guide groove 430. During the rotation process, the lubricating oil is applied to each corresponding chain section through the oil outlet channel 410, thereby improving the uniformity of oiling. In addition, the solution of the present application can complete the process of adding lubricating oil through the sprocket 400 itself, without the need for complex peripheral equipment to assist or the need to remove the chain and place it in other equipment for maintenance, and is easy to operate.

[0038] It should be noted that, refer to Figure 4 The lubricating oil can be dripped into the first inner ring groove 420 by manually squeezing it out through a needle, or the oil dripping tube 500 can be placed above the first inner ring groove 420 to provide lubricating oil to the first inner ring groove 420. The present application does not limit the specific method of adding lubricating oil to the first inner ring groove 420. In addition, mounting holes 120 are respectively provided at the four corners of the mounting plate 100, and the transmission mechanism provided by the present application can be installed at a specified position through the mounting holes 120.

[0039] Reference Figure 5 It can be understood that the inner side of the sprocket 400 is further provided with a second inner ring groove 440, which is connected to all the oil outlet channels 410, and the first inner ring groove 420 and the second inner ring groove 440 are connected through the oil guide groove 430. The second inner ring groove 440 allows the lubricating oil to flow evenly to each oil outlet channel 410, further improving the uniformity of the lubricating oil distribution, that is, when there is too much lubricating oil in the oil outlet channel 410, the lubricating liquid can overflow through the second inner ring groove 440 and flow to the next oil outlet channel 410, further improving the uniformity of the oil on the chain.

[0040] Reference Figure 2 and Figure 3 It can be understood that the first adjusting component includes an adjusting bolt 210, a movable boss 220 and a connecting shaft 230. A movable long hole 110 is provided on the mounting plate 100. The adjusting bolt 210 can be rotatably inserted in the mounting plate 100 and passes through both ends of the movable long hole 110. The movable boss 220 is arranged in the movable long hole 110 and is threadedly sleeved on the adjusting bolt 210. When the adjusting bolt 210 rotates, it is used to drive the movable boss 220 to translate in the movable long hole 110. The connecting shaft 230 is arranged on the surface of the adjusting bolt 210, and the second adjusting component is sleeved on the connecting shaft 230. Among them, the movable boss 220 and the connecting shaft 230 can jointly form an idler shaft, and the movable boss 220 is threadedly sleeved on the adjusting bolt 210. Since the movable long hole 110 limits the movable boss 220, when the adjusting bolt 210 is turned, the movable boss 220 will be driven to translate along the length direction of the movable long hole 110, thereby driving the second adjusting component and the sprocket 400 to move in a direction parallel to the surface of the mounting plate 100 through the connecting shaft 230 to adjust the tension of the chain.

[0041] Reference Figures 1 to 3 It is understandable that the first adjustment assembly further includes a clamping structure 240, a clamping groove 211 is provided on the adjustment bolt 210, and the clamping structure 240 is arranged on the surface of the mounting plate 100 and clamped in the clamping groove 211. The clamping structure 240 can be specifically a pressing plate, which is fixed to the side of the mounting plate 100 away from the sprocket 400 by bolts, and the clamping structure 240 is not specifically limited in this application. The clamping structure 240 is fixed on the surface of the mounting plate 100 and clamped in the clamping groove 211 of the adjustment bolt 210, which can limit the adjustment bolt 210, improve the stability when the adjustment bolt 210 is turned, and achieve better adjustment accuracy.

[0042] Reference Figure 2 and Figure 3 It can be understood that the second adjustment assembly includes an inner support 310 and an outer support 320. The inner support 310 is sleeved on the connecting shaft 230, and a limiting structure is provided between the inner support 310 and the connecting shaft 230. The limiting structure is used to limit the inner support 310 from rotating along the circumferential direction of the connecting shaft 230. The outer support 320 is threadedly sleeved on the lower part of the inner support 310, and the bearing 460 is sleeved on the upper part of the inner support 310. It should be noted that the upper and lower parts of the inner support 310 are only for reference. Figure 2 and Figure 3The cross section of the lower part of the inner support 310 is larger than the cross section of the upper part of the inner support 310, so that the bearing 460 is sleeved on the upper part of the inner support 310 and will not fall down. In addition, the outer side of the outer support 320 is provided with a recess for a wrench to engage, which improves the user experience of relevant personnel. By twisting the outer support 320, the inner support 310 can be pushed to move in a direction perpendicular to the surface of the mounting plate 100, that is, Figure 2 and Figure 3 The inner support 310 is moved in the up-down direction in the inner support 320, thereby driving the bearing 460 and the sprocket 400 to move in the direction perpendicular to the surface of the mounting plate 100. The inner support 310 is limited to rotate along the circumferential direction of the connecting shaft 230 by the limiting structure, so as to prevent the inner support 310 from rotating with the outer support 320 when the outer support 320 rotates, thereby failing to achieve the adjustment effect.

[0043] That is, by adjusting the bolt 210 and the outer support 320 respectively, the position of the sprocket 400 can be adjusted in two directions, so that the tension of the chain wound around the sprocket 400 can be changed to adapt to different chains and different application scenarios.

[0044] Continue to refer to Figure 2 and Figure 3 It can be understood that the limiting structure includes a limiting groove 331 and a limiting bolt 332 provided along the length direction of the connecting shaft 230, and the limiting bolt 332 passes through the inner support 310 and is engaged in the limiting groove 331. Through the action of the limiting groove 331 and the limiting bolt 332, the inner support 310 can be limited from rotating in the circumferential direction along the connecting shaft 230. When the outer support 320 is turned to adjust the position of the inner support 310, the limiting bolt 332 will also move in the limiting groove 331 along the length direction of the limiting groove 331 along with the movement of the inner support 310, thereby improving the stability of the sprocket 400 when it is adjusted in the vertical direction of the mounting plate 100.

[0045] Reference Figures 1 to 4 It can be understood that the first adjustment component also includes a limit ring 250 sleeved on the outer support 320 and abutting against the mounting plate 100, and both sides of the limit ring 250 are provided with limit ears 251 extending in the direction of the moving long hole 110, and the limit ears 251 are sleeved on the adjustment bolt 210. Specifically, the limit ring 250 sleeves and presses the bottom of the outer support 320, and the limit ears 251 are sleeved on the adjustment bolt 210, which plays a role in limiting the outer support 320 and the adjustment bolt 210, limiting the freedom of the outer support 320 to move in the up and down directions.

[0046] Continue to refer to Figures 1 to 4It is understandable that the second adjustment assembly further includes a nut 340, which is sleeved on the end of the connecting shaft 230 away from the mounting plate 100 and abuts against the bearing 460. The cross-sectional diameter of the nut 340 is smaller than the cross-sectional diameter of the bearing 460. After the position of the inner support 310 is adjusted by the outer support 320, the nut 340 is screwed on the connecting shaft 230 to the position abutting against the bearing 460, thereby locking the position of the inner support 310. When the position of the inner support 310 needs to be adjusted, the nut 340 is loosened and the outer support 320 is adjusted to eliminate the height difference between the chain and the sprocket 400. After the height difference is adjusted, the nut 340 is tightened to complete the adjustment.

[0047] Reference Figure 3 It is understandable that a retaining spring 450 is provided on the inner side of the sprocket 400, and the retaining spring 450 abuts against one end of the bearing 460 close to the mounting plate 100. The retaining spring 450 can fix the outer side of the bearing 460 to prevent the bearing 460 from shifting during operation, thereby improving the stability of the transmission mechanism.

[0048] It is understandable that a seal is provided between the inner ring and the outer ring of the bearing 460, and the seal is used to prevent the lubricating oil from flowing to the ball of the bearing 460. If too much lubricating oil enters between the inner ring and the outer ring of the bearing 460, the ball will generate greater resistance when rotating, thus hindering the rotation of the bearing 460. Therefore, a bearing 460 with a sealing function is selected to increase the service life of the bearing 460.

[0049] The embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present application.

Claims

1. A transmission mechanism, characterized in that: include: Mounting plate (100); a first adjustment component, the first adjustment component being arranged on the mounting plate (100), and an adjustment direction of the first adjustment component being parallel to a surface of the mounting plate (100); A second adjustment component, the second adjustment component is arranged at the moving end of the first adjustment component, and a bearing (460) is sleeved on the second adjustment component, and the adjustment direction of the second adjustment component is perpendicular to the surface of the mounting plate (100); A sprocket (400), wherein the sprocket (400) is sleeved on one end of the second adjustment component away from the mounting plate (100) through the bearing (460), an oil outlet channel (410) is provided through the tooth bottom between each two adjacent teeth of the sprocket (400), a first inner ring groove (420) is provided between the sprocket (400) and the end surface of the bearing (460) away from the mounting plate (100), and an oil guide groove (430) is provided between the first inner ring groove (420) and all the oil outlet channels (410) for communication.

2. The transmission mechanism according to claim 1, characterized in that: A second inner ring groove (440) is also provided on the inner side of the sprocket (400), and the second inner ring groove (440) is connected to all the oil outlet channels (410), and the first inner ring groove (420) and the second inner ring groove (440) are connected via the oil guide groove (430).

3. The transmission mechanism according to claim 1, characterized in that: The first adjustment component comprises an adjustment bolt (210), a movable boss (220) and a connecting shaft (230); a movable long hole (110) is provided on the mounting plate (100); the adjustment bolt (210) can be rotatably inserted in the mounting plate (100) and passes through both ends of the movable long hole (110); the movable boss (220) is arranged in the movable long hole (110) and is threadedly sleeved on the adjustment bolt (210); the adjustment bolt (210) is used to drive the movable boss (220) to translate in the movable long hole (110) when rotating; the connecting shaft (230) is arranged on the surface of the adjustment bolt (210); and the second adjustment component is sleeved on the connecting shaft (230).

4. The transmission mechanism according to claim 3, characterized in that: The first adjustment assembly further comprises a clamping structure (240); a clamping groove (211) is provided on the adjustment bolt (210); the clamping structure (240) is arranged on the surface of the mounting plate (100) and is clamped in the clamping groove (211).

5. The transmission mechanism according to claim 3, characterized in that: The second adjustment component comprises an inner support (310) and an outer support (320); the inner support (310) is sleeved on the connecting shaft (230); and a limiting structure is provided between the inner support (310) and the connecting shaft (230); the limiting structure is used to limit the circumferential rotation of the inner support (310) along the connecting shaft (230); the outer support (320) is threadedly sleeved on the lower part of the inner support (310); and the bearing (460) is sleeved on the upper part of the inner support (310).

6. The transmission mechanism according to claim 5, characterized in that: The limiting structure comprises a limiting groove (331) and a limiting bolt (332) provided along the length direction of the connecting shaft (230); the limiting bolt (332) passes through the inner support (310) and is clamped in the limiting groove (331).

7. The transmission mechanism according to claim 5, characterized in that: The first adjustment component also includes a limiting ring (250) which is sleeved on the outer support (320) and abuts against the mounting plate (100); limiting ears (251) are provided on both sides of the limiting ring (250) extending in the direction of the movable long hole (110); and the limiting ears (251) are sleeved on the adjustment bolt (210).

8. The transmission mechanism according to claim 5, characterized in that: The second adjustment component further comprises a nut (340), wherein the nut (340) is sleeved on an end of the connecting shaft (230) away from the mounting plate (100) and abuts against the bearing (460).

9. The transmission mechanism according to claim 1, characterized in that: A retaining spring (450) is provided on the inner side of the sprocket (400), and the retaining spring (450) abuts against an end of the bearing (460) close to the mounting plate (100).

10. The transmission mechanism according to claim 1 or 2, characterized in that: A seal is provided between the inner ring and the outer ring of the bearing (460), and the seal is used to prevent lubricating oil from flowing to the balls of the bearing (460).

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