A transmission mechanism

Abstract

The application discloses a transmission mechanism and relates to the technical field of chain wheels, which 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, and a bearing is arranged on the second adjusting assembly. The adjusting direction of the second adjusting adjusting assembly is perpendicular to the surface of the mounting plate. The chain wheel is arranged on the end of the second adjusting assembly away from the mounting plate through the bearing. An oil outlet channel is arranged at the tooth bottom between every two adjacent gear teeth of the chain wheel. A first inner ring groove is arranged between the chain wheel and the end face of the bearing away from the mounting plate. An oil guide groove is arranged in communication between the first inner ring groove and all the oil outlet channels. The application can improve the uniformity of oiling on the chain wheel and is convenient to operate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of chain wheels, in particular to a transmission mechanism. BACKGROUND

[0002] During long-term use, the chain needs to be lubricated. If the chain is not lubricated, a large friction force will be generated between the chain wheel and the chain, and the chain is prone to breakage. If the friction force between the chain wheel and the chain is large, an irritating metal friction sound will also be generated, affecting the working environment. Therefore, the staff needs to regularly lubricate the chain to improve its service life.

[0003] In the prior art, the method for improving the lubricity of the chain usually adds lubricating oil to the chain wheel manually. When batch maintenance of the chain is required, the chain can also be placed in a driving chain lubricating device, and lubricating oil is squeezed out by a lubricating gun in the device to reduce the working friction of the chain.

[0004] However, the above-mentioned manual method is prone to uneven application of lubricating oil, and the lubrication by the external device is relatively cumbersome and requires the aid of an external device. Therefore, the current method for adding lubricating oil to the chain has the defects of unevenness or cumbersome operation. SUMMARY

[0005] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application provides a transmission mechanism which can improve the uniformity of oiling of the chain wheel and is convenient to operate.

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

[0007] a mounting plate;

[0008] a first adjusting assembly arranged on the mounting plate, the adjusting direction of the first adjusting assembly being parallel to the surface of the mounting plate;

[0009] a second adjusting assembly arranged at the moving end of the first adjusting assembly, and a bearing being sleeved on the second adjusting assembly, the adjusting direction of the second adjusting assembly being perpendicular to the surface of the mounting plate;

[0010] a chain wheel, the chain wheel being sleeved on the end of the second adjusting assembly away from the mounting plate through the bearing, an oil outlet channel being arranged at the tooth bottom between every two adjacent gear teeth of the chain wheel, a first inner ring groove being arranged between the chain wheel and the end face of the bearing away from the mounting plate, and a guide oil groove being arranged in communication between the first inner ring groove and all the oil outlet channels.

[0011] According to the transmission mechanism, the first adjusting assembly is arranged on the mounting plate, the second adjusting assembly is arranged at the moving end of the first adjusting assembly, the chain wheel is arranged on the second adjusting assembly through the bearing sleeve, the first adjusting assembly is used for adjusting the position of the second adjusting assembly, the second adjusting assembly and the chain wheel are driven to move in the direction parallel to the surface of the mounting plate, the second adjusting assembly is used for adjusting the movement of the chain wheel in the direction perpendicular to the surface of the mounting plate, the position of the chain wheel is adjusted through the first adjusting assembly and the second adjusting assembly, so that the tension of the chain wound on the chain wheel can be changed to adapt to different chains and different application scenarios. On the other hand, the chain wheel is provided with an oil outlet channel at the tooth bottom between every two gear teeth, and a first inner ring groove is arranged between the chain wheel and the bearing. During use, the chain wheel drives the chain to move, and lubricating oil is dripped into the first inner ring groove, and the lubricating oil flows to the oil outlet channel along the oil guide groove. Due to the centrifugal force generated by the rotation of the chain wheel, the lubricating oil can be thrown out from the corresponding oil outlet channel and coated on the chain, thereby improving the oiling efficiency of the chain. Meanwhile, the first inner ring groove is in communication with all the oil guide grooves, so that the lubricating oil can flow uniformly into each oil guide groove. During rotation, the lubricating oil is coated on each chain through the oil outlet channel, thereby improving the uniformity of oiling. Moreover, the scheme of the present application can complete the process of adding lubricating oil by the chain wheel itself, without the need for complex external devices or the need to remove the chain for maintenance in other devices, thereby facilitating operation.

[0012] According to some embodiments of the present application, the inner side of the chain wheel is further provided with a second inner ring groove in communication with all the oil outlet channels, and the first inner ring groove and the second inner ring groove are in communication through the oil guide groove.

[0013] According to some embodiments of the present application, the first adjusting assembly comprises an adjusting bolt, a moving boss and a connecting shaft. The mounting plate is provided with a moving long hole, the adjusting bolt is rotatably inserted into the mounting plate and penetrates through both ends of the moving long hole, the moving boss is arranged in the moving long hole and is threadedly sleeved on the adjusting bolt, the adjusting bolt is used for driving the moving boss to translate in the moving long hole when the adjusting bolt is rotated, and the connecting shaft is arranged on the surface of the adjusting bolt, and the second adjusting assembly is sleeved on the connecting shaft.

[0014] According to some embodiments of the present application, the first adjusting assembly further comprises a pressing structure, the adjusting bolt is provided with a clamping groove, and the pressing structure is arranged on the surface of the mounting plate and clamped in the clamping groove.

[0015] According to some embodiments of the present application, the second adjusting assembly comprises an inner support and an outer support, the inner support is sleeved on the connecting shaft, and a limiting structure is arranged between the inner support and the connecting shaft, the limiting structure is used for limiting the rotation of the inner support along the circumference of 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 comprises a limiting slot and a limiting bolt, the limiting slot is arranged on the connecting shaft along the length direction, and the limiting bolt is clamped in the limiting slot through the inner support.

[0017] According to some embodiments of the present application, the first adjusting assembly further comprises a limiting ring, the limiting ring is sleeved on the outer support and abuts against the mounting plate, limiting ears are arranged on both sides of the limiting ring and extend to the direction of the moving long hole, and the limiting ears are sleeved on the adjusting bolt.

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

[0019] According to some embodiments of the present application, the inner side of the chain wheel is provided with a snap spring, and the snap spring abuts against the end of the bearing close to the mounting plate.

[0020] According to some embodiments of the present application, a sealing element is arranged between the inner ring and the outer ring of the bearing, and the sealing element is used for preventing the lubricating oil from flowing to the ball of the bearing.

[0021] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0022] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter.

[0023] Figure 1 A structural schematic view of a transmission mechanism provided for some embodiments of the present application is shown in the figure;

[0024] Figure 2 A sectional schematic view of a transmission mechanism provided for some embodiments of the present application is shown in the figure;

[0025] Figure 3 An exploded schematic view of a transmission mechanism provided for some embodiments of the present application is shown in the figure;

[0026] Figure 4 A structural schematic view of a transmission mechanism provided for some embodiments of the present application is shown in the figure;

[0027] Figure 5 The internal structure diagram of the chain wheel provided for some embodiments of the present application is shown.

[0028] The reference signs are as follows:

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

[0030] The embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary, only for explaining the present application, and cannot be understood as a limitation to the present application.

[0031] In the description of the present application, it is understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, only for the purpose of facilitating the description of the present application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation to the present application.

[0032] In the description of the present application, if the first, second, etc. are described, 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 technical features indicated or the order of technical features indicated.

[0033] In the description of the present application, unless otherwise explicitly limited, the words such as setting, mounting, connecting, etc. should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0034] The chain needs to be lubricated during long-term use. If the chain is not lubricated, the sprocket and the chain will generate a large friction force, and the chain is prone to breakage. If the friction force between the sprocket and the chain is large, an irritating metal friction sound will also be generated, which will affect the working environment. Therefore, the staff needs to regularly lubricate the chain to improve its service life. In the prior art, the method for improving the lubricity of the chain is usually to manually add lubricating oil to the sprocket. If the chain needs to be maintained in batches, the chain can also be placed in a driving chain lubricating device, and the lubricating oil is squeezed out by a lubricating gun in the device to reduce the working friction of the chain. However, the above-mentioned manual method is prone to uneven application of lubricating oil, and the lubrication method through an external device is relatively troublesome and needs to rely on an external device. Therefore, the current method for adding lubricating oil to the chain has the defects of unevenness or inconvenience.

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

[0036] With reference to Figure 1 The application provides a transmission mechanism, which comprises a mounting plate 100, a first adjusting assembly, a second adjusting assembly and a sprocket 400. The first adjusting assembly is arranged on the mounting plate 100, and the adjusting direction of the first adjusting assembly is parallel to the surface of the mounting plate 100. The second adjusting assembly is arranged at the moving end of the first adjusting assembly, and a bearing 460 is sleeved on the second adjusting assembly. The adjusting direction of the second adjusting assembly is perpendicular to the surface of the mounting plate 100. The sprocket 400 is sleeved on the end of the second adjusting assembly away from the mounting plate 100 through the bearing 460. The sprocket 400 is provided with an oil outlet channel 410 at the tooth bottom between every two adjacent teeth. A first inner ring groove 420 is arranged between the sprocket 400 and the end face of the bearing 460 away from the mounting plate 100. A guide oil groove 430 is arranged between the first inner ring groove 420 and all the oil outlet channels 410.

[0037] The first adjusting assembly is arranged on the mounting plate 100, the second adjusting assembly is arranged on the moving end of the first adjusting assembly, the chain wheel 400 is sleeved on the second adjusting assembly through the bearing 460, the first adjusting assembly is used for adjusting the position of the second adjusting assembly, driving the second adjusting assembly and the chain wheel 400 to move along the direction parallel to the surface of the mounting plate 100, and the second adjusting assembly is used for adjusting the movement of the chain wheel 400 along the direction vertical to the surface of the mounting plate 100, so that the tension of the chain arranged on the chain wheel 400 can be changed to adapt to different chains and different application scenarios. On the other hand, the chain wheel 400 is provided with an oil outlet channel 410 at the tooth bottom between every two gear teeth, and a first inner ring groove 420 is arranged between the chain wheel 400 and the bearing 460. In use, the chain wheel 400 drips lubricating oil into the first inner ring groove 420 in the process of driving the chain to move, and the lubricating oil flows along the oil guide groove 430 to the oil outlet channel 410. Due to the centrifugal effect generated by the rotation of the chain wheel 400, the lubricating oil can be thrown out from the corresponding oil outlet channel 410 to coat on the chain, thereby improving the oiling efficiency of the chain. At the same time, the first inner ring groove 420 is in communication with all the oil guide grooves 430, so that the lubricating oil can flow uniformly into each oil guide groove 430. In the process of rotation, the lubricating oil is coated on each corresponding chain through the oil outlet channel 410, thereby improving the uniformity of oiling. Moreover, the scheme of the present application can complete the process of adding lubricating oil by the chain wheel 400 itself, without the need for complex external devices to assist or without the need to take down the chain and put it into other devices for maintenance, thereby being convenient to operate.

[0038] It should be noted that, with reference to Figure 4 , the lubricating oil can be manually squeezed out by a needle tube, or the oil dripping pipe 500 can be placed above the first inner ring groove 420 to provide lubricating oil for the first inner ring groove 420. The specific way of adding lubricating oil to the first inner ring groove 420 is not limited in the present application. In addition, mounting holes 120 are arranged at four corners of the mounting plate 100, and the transmission mechanism provided by the present application can be mounted to a specified position through the mounting holes 120.

[0039] With reference to Figure 5 It can be understood that the inner side of the chain wheel 400 is also provided with a second inner ring groove 440, the second inner ring groove 440 is in communication with all the oil outlet channels 410, and the first inner ring groove 420 and the second inner ring groove 440 are in communication through the oil guide groove 430. The second inner ring groove 440 can make the lubricating oil flow uniformly to each oil outlet channel 410, thereby further improving the uniformity of the distribution of the lubricating oil, that is, when the lubricating oil in the oil outlet channel 410 is too much, the lubricating oil can overflow through the second inner ring groove 440 and flow to the next oil outlet channel 410, thereby further improving the uniformity of the oiling of the chain.

[0040] With reference to Figure 2 And Figure 3 It can be understood that the first adjusting assembly includes an adjusting bolt 210, a moving boss 220 and a connecting shaft 230, the moving long hole 110 is arranged on the mounting plate 100, the adjusting bolt 210 is rotatably arranged in the mounting plate 100 and penetrates through both ends of the moving long hole 110, the moving boss 220 is arranged in the moving long hole 110 and is threadedly sleeved on the adjusting bolt 210, the adjusting bolt 210 is used to drive the moving boss 220 to translate in the moving long hole 110 when rotating, and the connecting shaft 230 is arranged on the surface of the adjusting bolt 210. The second adjusting assembly is sleeved on the connecting shaft 230. The moving boss 220 and the connecting shaft 230 can jointly form a idler shaft, the moving boss 220 is threadedly sleeved on the adjusting bolt 210, and the moving long hole 110 limits the moving boss 220. When the adjusting bolt 210 is screwed, the moving boss 220 is driven to translate along the length direction of the moving long hole 110, so that the second adjusting assembly and the chain wheel 400 are driven to move along the direction parallel to the surface of the mounting plate 100 by the connecting shaft 230, so as to adjust the tension of the chain.

[0041] With reference to Figures 1 to 3 It can be understood that the first adjusting assembly further includes a pressing structure 240, the adjusting bolt 210 is provided with a clamping groove 211, and the pressing structure 240 is arranged on the surface of the mounting plate 100 and clamped in the clamping groove 211. The pressing structure 240 can be a pressing plate, which is fixed on the side of the mounting plate 100 away from the chain wheel 400 by a bolt. The pressing structure 240 is fixed on the surface of the mounting plate 100 and clamped in the clamping groove 211 of the adjusting bolt 210, which can limit the adjusting bolt 210 and improve the stability when the adjusting bolt 210 is screwed, so as to achieve better adjusting accuracy.

[0042] With reference to Figure 2 And Figure 3 It can be understood that the second adjusting 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 arranged between the inner support 310 and the connecting shaft 230. The limiting structure is used to limit the inner support 310 to rotate along the circumference 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 part and the lower part of the inner support 310 are only used for reference Figure 2 And Figure 3The transmission mechanism is not limited in the direction. The cross section of the lower part of the inner support 310 is larger than that of the upper part of the inner support 310, so that the bearing 460 is not easily dropped from the upper part of the inner support 310. In addition, the outer side of the outer support 320 is provided with a recess for clamping a wrench, improving the use experience of the relevant personnel. By rotating the outer support 320, the inner support 310 can be moved in the direction perpendicular to the surface of the mounting plate 100, that is, the up-down direction of the mounting plate 100. Figure 2 and Figure 3 The bearing 460 and the sprocket 400 are moved in the direction perpendicular to the surface of the mounting plate 100. The limiting structure limits the rotation of the inner support 310 along the circumference of the connecting shaft 230, so that the outer support 320 does not rotate with the inner support 310, and the adjustment effect is achieved.

[0043] That is, by adjusting the adjusting bolt 210 and the outer support 320, 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] Referring to Figure 2 and Figure 3 It can be understood that the limiting structure includes a limiting slot 331 and a limiting bolt 332 provided on the connecting shaft 230 in the length direction. The limiting bolt 332 is clamped in the limiting slot 331. By the action of the limiting slot 331 and the limiting bolt 332, the rotation of the inner support 310 along the circumference of the connecting shaft 230 is limited. When the position of the inner support 310 is adjusted by rotating the outer support 320, the limiting bolt 332 also moves in the limiting slot 331 along the length direction of the limiting slot 331, improving the stability of the sprocket 400 when adjusted in the direction perpendicular to the surface of the mounting plate 100.

[0045] Referring to Figures 1 to 4 It can be understood that the first adjusting assembly further includes a limiting ring 250 clamped on the outer support 320 and abutting against the mounting plate 100. The limiting ring 250 extends in the direction of the moving long hole 110 and is provided with a limiting lug 251 on both sides. The limiting lug 251 is clamped on the adjusting bolt 210. Specifically, the limiting ring 250 clamps the bottom of the outer support 320 and is clamped on the adjusting bolt 210 through the limiting lug 251, limiting the freedom of the outer support 320 in the up-down direction.

[0046] Referring to Figures 1 to 4It can be understood that the second adjusting assembly further comprises 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 that 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, so as to lock the position of the inner support 310. When the position of the inner support 310 needs to be adjusted, the nut 340 is unscrewed, 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 locked to complete the adjustment.

[0047] With reference to Figure 3 It can be understood that the inner side of the sprocket 400 is provided with a snap spring 450, which abuts against the end of the bearing 460 close to the mounting plate 100. The outer side of the bearing 460 is fixed by the snap spring 450, so as to avoid displacement of the bearing 460 during work, and improve the stability of the transmission mechanism.

[0048] It can be understood that the inner ring and the outer ring of the bearing 460 are provided with a sealing element, which is used to prevent lubricating oil from flowing to the ball of the bearing 460. Too much lubricating oil enters between the inner ring and the outer ring of the bearing 460, and the ball generates large resistance during rotation, i.e. hinders the rotation of the bearing 460. Therefore, the bearing 460 with sealing function is selected, so as to improve the service life of the bearing 460.

[0049] The embodiments of the application are described in detail above with reference to the drawings, but the application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the purpose of the application.

Claims

1. A transmission mechanism, characterized by, The utility model relates to a kind of adjustable chain wheel, including: Mounting plate (100); First adjusting assembly, the adjusting direction of the first adjusting assembly is parallel with the surface of the mounting plate (100), is arranged on the mounting plate (100); Second adjusting assembly, the moving end of the first adjusting assembly is arranged with the second adjusting assembly, and bearing (460) is sleeved on the second adjusting assembly, and the adjusting direction of the second adjusting assembly is perpendicular to the surface of the mounting plate (100); Sprocket (400), the sprocket (400) is sleeved on the second adjusting assembly away from one end of the mounting plate (100) by the bearing (460), the sprocket (400) is provided with oil outlet channel (410) at the bottom of every two adjacent gear teeth, and first inner ring groove (420) is arranged between the sprocket (400) and the end face of the bearing (460) away from the mounting plate (100), and the first inner ring groove (420) is respectively communicated with all the oil outlet channels (410) by oil guide groove (430); Wherein, the first adjusting assembly includes adjusting bolt (210), moving boss (220) and connecting shaft (230), the mounting plate (100) is provided with moving long hole (110), the adjusting bolt (210) is rotatably inserted into the mounting plate (100) and penetrates the both ends of the moving long hole (110), the moving boss (220) is arranged in the moving long hole (110) and is threadedly sleeved on the adjusting bolt (210), the adjusting bolt (210) is used to drive the moving boss (220) to translate in the moving long hole (110) when rotating, the connecting shaft (230) is arranged on the surface of the adjusting bolt (210), and the second adjusting assembly is sleeved on the connecting shaft (230); The second adjusting assembly includes inner support (310) and outer support (320), the inner support (310) is sleeved on the connecting shaft (230), and limit structure is arranged between the inner support (310) and the connecting shaft (230), the limit structure is used to limit the inner support (310) to rotate along the connecting shaft (230) circumferentially, 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).

2. The transmission mechanism of claim 1, wherein The inner side of the sprocket (400) is also provided with second inner ring groove (440), the second inner ring groove (440) is communicated with all the oil outlet channels (410), and the first inner ring groove (420) and the second inner ring groove (440) are communicated by the oil guide groove (430).

3. The transmission mechanism of claim 1, wherein The first adjusting assembly further includes pressing structure (240), the adjusting bolt (210) is provided with clamping groove (211), and the pressing structure (240) is arranged on the surface of the mounting plate (100) and is clamped in the clamping groove (211).

4. The transmission mechanism of claim 1, wherein The limiting structure comprises a limiting slot (331) and a limiting bolt (332) provided on the connecting shaft (230) along the length direction, and the limiting bolt (332) is clamped in the limiting slot (331) through the inner support (310).

5. The transmission of claim 1, wherein The first adjusting assembly further comprises a limiting ring (250) sleeved on the outer support (320) and abutting against the mounting plate (100), and limiting ears (251) are provided on both sides of the limiting ring (250) and extend to the direction of the moving long hole (110), and the limiting ears (251) are sleeved on the adjusting bolt (210).

6. The transmission of claim 1, wherein The second adjusting assembly further comprises a nut (340) sleeved on the connecting shaft (230) away from the mounting plate (100) and abutting against the bearing (460).

7. The transmission of claim 1, wherein The inner side of the chain wheel (400) is provided with a clamping spring (450) abutting against one end of the bearing (460) close to the mounting plate (100).

8. The transmission mechanism according to claim 1 or 2, characterized in that, The inner ring and the outer ring of the bearing (460) are provided with a sealing element for preventing lubricating oil from flowing to the ball of the bearing (460).

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