Chain drive device

Abstract

The application discloses a chain driving device, which comprises a base, a first transmission assembly, a second transmission assembly, a driving part and a chain, the first transmission assembly is connected with the base, the first transmission assembly comprises a first guide wheel and a first sprocket, the first guide wheel and the first sprocket are arranged eccentrically, the second transmission assembly is connected with the base and is movable relative to the base, the second transmission assembly is arranged at intervals with the first transmission assembly, the second transmission assembly comprises a second guide wheel and a second sprocket, and the second guide wheel and the second sprocket are arranged eccentrically, one end of the driving part is connected with the first transmission assembly, the other end of the driving part is connected with the second transmission assembly, the driving part can drive the second transmission assembly to move away from or close to the first transmission assembly, and the chain is wound on the first guide wheel, the first sprocket, the second guide wheel and the second sprocket in sequence. The chain driving device can reduce the operation cost of the device.

Description

TECHNICAL FIELD

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

[0002] In coal mining, because of the existence of flammable and explosive gas in the working environment, fuel as a power source for driving equipment should be avoided as much as possible in the mining operation. In the related art, an explosion-proof motor is mostly used as a power source. However, the explosion-proof motor needs to be powered by a long-distance cable, which increases the cost of equipment operation. SUMMARY

[0003] The present application aims to at least solve one of the technical problems in the related art. To this end, an embodiment of the present application proposes a chain drive device, which can reduce the cost of equipment operation.

[0004] The chain drive device of the embodiment of the present application comprises a base, a first transmission assembly connected with the base, the first transmission assembly comprising a first guide wheel and a first sprocket, the first guide wheel and the first sprocket being arranged at intervals and being arranged eccentrically, a second transmission assembly connected with the base and movable relative to the base, the second transmission assembly being arranged at intervals with the first transmission assembly, the second transmission assembly comprising a second guide wheel and a second sprocket, the second guide wheel and the second sprocket being arranged at intervals and being arranged eccentrically, a driving component having one end connected with the first transmission assembly and the other end connected with the second transmission assembly, the driving component being capable of driving the second transmission assembly away from or close to the first transmission assembly, and a chain wound on the first guide wheel, the first sprocket, the second guide wheel and the second sprocket in sequence.

[0005] The chain drive device of the embodiment of the present application can reduce the cost of equipment operation.

[0006] In some embodiments, the diameter of the first sprocket is greater than the diameter of the first guide wheel, and the axis of the first guide wheel is higher than the axis of the first sprocket, the diameter of the second sprocket is greater than the diameter of the second guide wheel, and the axis of the second guide wheel is higher than the axis of the second sprocket.

[0007] In some embodiments, the chain forms a first center of gravity at the intersection of the first sprocket and the first guide wheel, the first sprocket forms a first arm point at the highest point thereof, the distance from the first center of gravity to the first arm point is less than the distance from the first arm point to the first sprocket shaft center, the chain forms a second center of gravity at the intersection of the second sprocket and the second guide wheel, the second sprocket forms a second arm point at the highest point thereof, the distance from the second center of gravity to the second arm point is less than the distance from the second arm point to the second sprocket shaft center.

[0008] In some embodiments, the first sprocket and the first guide wheel are arranged in a width direction of the base and are arranged in parallel, the second sprocket and the second guide wheel are arranged in a width direction of the base and are arranged in parallel.

[0009] In some embodiments, the distance between the first sprocket and the first guide wheel is less than the width of the chain, the distance between the second sprocket and the second guide wheel is less than the width of the chain.

[0010] In some embodiments, the first sprocket is provided with a first chain groove segment along the circumferential direction thereof, the first chain groove segment is used to accommodate the chain, a first chain blocking segment is arranged on the side of the first chain groove segment away from the first guide wheel, and a first chain entry segment is arranged on the side of the first chain groove segment close to the first guide wheel, the second sprocket is provided with a second chain groove segment along the circumferential direction thereof, the second chain groove segment is used to accommodate the chain, a second chain blocking segment is arranged on the side of the second chain groove segment away from the second guide wheel, and a second chain entry segment is arranged on the side of the second chain groove segment close to the second guide wheel.

[0011] In some embodiments, the first guide wheel is provided with a first chain blocking disc along the circumferential direction thereof on the side away from the first sprocket, and is provided with a first chain channel segment along the circumferential direction thereof on the side close to the first sprocket, the first chain channel segment has a taper, the diameter of the side of the first chain channel segment close to the first chain blocking disc is greater than the diameter of the side of the first chain channel segment away from the first chain blocking disc, and the diameter of the side of the first chain channel segment close to the first chain blocking disc is less than the outer diameter of the first chain blocking disc, the second guide wheel is provided with a second chain blocking disc along the circumferential direction thereof on the side away from the second sprocket, and is provided with a second chain channel segment along the circumferential direction thereof on the side close to the second sprocket, the second chain channel segment has a taper, the diameter of the side of the second chain channel segment close to the second chain blocking disc is greater than the diameter of the side of the second chain channel segment away from the second chain blocking disc, and the diameter of the side of the second chain channel segment close to the second chain blocking disc is less than the outer diameter of the second chain blocking disc.

[0012] In some embodiments, the first chain groove segment and the second chain groove segment are each provided with a rubber ring.

[0013] In some embodiments, the number of driving components is multiple, and the multiple driving components are arranged at intervals.

[0014] In some embodiments, the first transmission assembly further comprises a first support frame, the first guide wheel and the first chain wheel are connected to the first support frame respectively, and the first guide wheel and the first chain wheel are rotatable relative to the first support frame, the second transmission assembly comprises a second support frame, the second guide wheel and the second chain wheel are connected to the second support frame respectively, and the second guide wheel and the second chain wheel are rotatable relative to the second support frame. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a structural schematic diagram of a chain drive device according to an embodiment of the present application.

[0016] Figure 2 is a structural schematic diagram of a chain drive device according to an embodiment of the present application from another angle.

[0017] Figure 3 is a front view of a chain drive device according to an embodiment of the present application.

[0018] Figure 4 is a side view of a chain drive device according to an embodiment of the present application.

[0019] Figure 5 is a top view of a chain drive device according to an embodiment of the present application.

[0020] Figure 6 is a rear view of a chain drive device according to an embodiment of the present application.

[0021] REFERENCE NUMERALS:

[0022] base 1,

[0023] first transmission assembly 2, first guide wheel 21, first chain link segment 211, first chain wheel 22, first chain groove segment 221, first chain blocking segment 222, first support frame 23, first chain blocking disc 24,

[0024] second transmission assembly 3, second guide wheel 31, second chain link segment 311, second chain wheel 32, second chain groove segment 321, second chain blocking segment 322, second support frame 33, second chain blocking disc 34,

[0025] driving component 4, chain 5. DETAILED DESCRIPTION

[0026] Embodiments of the present application are described in detail below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present application, and cannot be understood as limiting the present application.

[0027] As Figures 1 to 6 shown, the chain drive device of the embodiment of the application comprises a base 1, a first transmission assembly 2, a second transmission assembly 3, a chain 5 and a driving component 4, the first transmission assembly 2 is connected with the base 1, the first transmission assembly 2 comprises a first guide wheel 21 and a first sprocket 22, the first guide wheel 21 and the first sprocket 22 are arranged at intervals, and the first guide wheel 21 and the first sprocket 22 are arranged eccentrically, the second transmission assembly 3 is connected with the base 1, and the second transmission assembly 3 is movable relative to the base 1, the second transmission assembly 3 is arranged at intervals with the first transmission assembly 2, the second transmission assembly 3 comprises a second guide wheel 31 and a second sprocket 32, the second guide wheel 31 and the second sprocket 32 are arranged at intervals, and the second guide wheel 31 and the second sprocket 32 are arranged eccentrically, one end of the driving component 4 is connected with the first transmission assembly 2, the other end of the driving component 4 is connected with the second transmission assembly 3, the driving component 4 can drive the second transmission assembly 3 to move away from or close to the first transmission assembly 2, and the chain 5 is wound on the first guide wheel 21, the first sprocket 22, the second guide wheel 31 and the second sprocket 32 in sequence.

[0028] Specifically, as Figure 1 shown, the first transmission assembly 2 and the second transmission assembly 3 are arranged at intervals in the left-right direction, the second transmission assembly 3 is movable in the left-right direction to close to or move away from the first transmission assembly 2, the first guide wheel 21 and the first sprocket 22 are arranged at intervals in the front-back direction, and the first guide wheel 21 and the first sprocket 22 are arranged eccentrically, that is, the first guide wheel 21 and the first sprocket 22 are arranged offset between the shafts, the second guide wheel 31 and the second sprocket 32 are arranged at intervals in the front-back direction, the interval distance of the second guide wheel 31 and the second sprocket 32 in the front-back direction is the same as the interval distance of the first guide wheel 21 and the first sprocket 22 in the front-back direction, the output shaft is arranged on the first guide wheel 21, and the output shaft is connected with an external device, for example, the external device can be a generator, the output shaft is connected with the generator, and the generator can drive the motor to operate.

[0029] The chain drive device of the embodiment of the application, by arranging the first transmission assembly 2 and the second transmission assembly 3, the first transmission assembly 2 and the second transmission assembly 3 are connected through the chain 5, the second transmission assembly 3 is moved in the left-right direction through the extension of the driving component 4, thereby driving the second transmission assembly 3 to rotate through the chain 5, the first guide wheel 21 is driven to rotate through the chain 5 by the second transmission assembly 3, and the output shaft is driven to rotate by the first guide wheel 21, thereby driving the generator to operate to supply power to the power-consuming component, compared with laying long-distance cables, the equipment operation cost can be reduced.

[0030] In some embodiments, the diameter of the first sprocket 22 is greater than the diameter of the first guide wheel 21, and the axis of the first guide wheel 21 is higher than the axis of the first sprocket 22, the diameter of the second sprocket 32 is greater than the diameter of the second guide wheel 31, and the axis of the second guide wheel 31 is higher than the axis of the second sprocket 32.

[0031] Specifically, as shown in Figure 1 and Figure 6 , the axis of the first sprocket 22 is located below and to the right of the first guide wheel 21, and the axis of the second sprocket 32 is located below and to the left of the second guide wheel 31. The axis height of the first sprocket 22 is greater than the height of the first guide wheel 21, which can ensure that the chain 5 smoothly transitions from the first sprocket 22 to the first guide wheel 21, and the axis height of the second sprocket 32 is greater than the height of the second guide wheel 31, which can ensure that the chain 5 smoothly transitions from the second sprocket 32 to the second guide wheel 31, thereby avoiding the chain 5 from falling off.

[0032] In some embodiments, the chain 5 forms a first center of gravity at the intersection of the first sprocket 22 and the first guide wheel 21, the highest point of the first sprocket 22 forms a first force arm point, the distance from the first center of gravity to the first force arm point is less than the distance from the first force arm point to the axis of the first sprocket 22, and the chain 5 forms a second center of gravity at the intersection of the second sprocket 32 and the second guide wheel 31, the highest point of the second sprocket 32 forms a second force arm point, the distance from the second center of gravity to the second force arm point is less than the distance from the second force arm point to the axis of the second sprocket 32.

[0033] It should be noted that the intersection of the first sprocket 22, the first guide wheel 21 and the chain 5 is the first center of gravity, the highest point of the first sprocket 22 is the first force arm point, and the distance from the first force arm point to the axis of the first sprocket 22 is greater than the distance from the first center of gravity to the first force arm point, as shown in Figure 6 , the distance from the first force arm point to the axis of the first sprocket 22 is A, and the distance from the first center of gravity to the first force arm point is B, and A > B, under the action of the tension of the chain 5, the first sprocket 22 rotates counterclockwise and generates a torque, and the first guide wheel 21 generates a clockwise rotation and generates a torque, and because the distance from the first force arm point to the axis of the first sprocket 22 is greater than the distance from the first center of gravity to the first force arm point, the torque generated by the first sprocket 22 is greater than the torque generated by the first guide wheel 21, thereby ensuring that the first sprocket 22 rotates smoothly.

[0034] The intersection of the second sprocket 32, the second guide wheel 31 and the chain is the second center of gravity, the highest point of the second sprocket 32 is the second force arm point, and the distance from the second force arm point to the axis of the second sprocket 32 is greater than the distance from the second center of gravity to the second force arm point, under the action of the tension of the chain 5, as shown in Figure 6As shown, the distance from the second lever arm point to the axis of the second sprocket 32 ​​is C, the distance from the second center of gravity to the second lever arm point is D, and C>D, the second sprocket 32 ​​rotates counterclockwise and generates a torque, and the second guide wheel 31 rotates clockwise and generates a torque. Since the distance from the second lever arm point to the axis of the second sprocket 32 ​​is greater than the distance from the second center of gravity to the second lever arm point, the torque generated by the second sprocket 32 ​​is greater than the torque generated by the second guide wheel 31, thereby ensuring that the second sprocket 32 ​​rotates smoothly.

[0035] For example, the circumferential diameter of the force-bearing part (first chain groove section 221) of the first sprocket 22 is set to 3.4 meters, and the circumferential diameter of the force-bearing part (first chain path section 211) of the first guide wheel is set to 2.046 meters. In this way, the force arm formed by the tightened chain 5 on the first sprocket 22 is 1.7 meters, and the force arm formed on the first guide wheel is 1.023 meters. The thrust of the driving component 4 is set to 50 tons. The torque formed by the chain 5 on the first sprocket 22 is: 1.7×50000=85000 kg-m, and the torque of the chain 5 on the first sprocket 22 is: The torque generated by the first guide wheel is: 1.023×50000=51150 kg-m, and the torque difference generated by the chain 5 on the first sprocket 22 and the first guide wheel is: 85000-51150=33850 kg-m; this means that after overcoming the resistance of the torque of the first guide wheel, the torque of the first sprocket 22 still has 33850 kg-m of workable torque. This 33850 kg-m of workable torque drives the driving force of the external device, thereby driving the external device to rotate.

[0036] In some embodiments, the first sprocket 22 and the first guide wheel 21 are aligned in the width direction of the base 1 (eg Figure 1 The first sprocket 22 is arranged in parallel with the first guide wheel 21, and the second sprocket 32 ​​is arranged in parallel with the second guide wheel 31 in the width direction of the base 1.

[0037] Specifically, if Figure 5 As shown, the first guide wheel 21, the first guide wheel 21, the first sprocket 22 and the second sprocket 32 ​​are arranged in parallel to prevent the chain 5 from twisting during transmission, thereby improving the transmission efficiency and service life of the chain 5.

[0038] In some embodiments, the distance between the first sprocket 22 and the first guide wheel 21 is smaller than the width of the chain 5 , and the distance between the second sprocket 32 ​​and the second guide wheel 31 is smaller than the width of the chain 5 .

[0039] Specifically, if Figure 5As shown, the interval distance between the first sprocket 22 and the first guide wheel 21 is the same as the interval distance between the second guide wheel 31 and the second sprocket 32, and the interval distance between the first sprocket 22 and the first guide wheel 21 is smaller than the width of the chain 5, avoiding the chain 5 from falling off from the gap between the first sprocket 22 and the first guide wheel 21, and improving the stability of the chain 5 transmission.

[0040] In some embodiments, the first sprocket 22 is provided with a first chain groove segment 221 along the circumferential direction thereof, the first chain groove segment 221 is used to accommodate the chain 5, the first chain groove segment 221 is provided with a first chain blocking segment 222 away from the side of the first guide wheel, and is provided with a first chain entry segment close to the side of the first guide wheel, the second sprocket 32 is provided with a second chain groove segment 321 along the circumferential direction thereof, the second chain groove segment 321 is used to accommodate the chain 5, the second chain groove segment 321 is provided with a second chain blocking segment away from the side of the second guide wheel, and is provided with a second chain entry segment 322 close to the side of the second guide wheel.

[0041] Specifically, as shown, Figure 2 the first chain groove segment 221, the first chain blocking segment 222 and the first chain entry segment are communicated with each other, the second chain groove segment 321, the second chain blocking segment and the second chain entry segment 322 are communicated with each other, the chain 5 enters the first chain entry segment through the first chain groove segment 221 and the first chain blocking segment 222 when on the side of the first transmission assembly 2, and the chain 5 enters the second chain entry segment 322 through the second chain groove segment 321 and the second chain blocking segment when on the side of the second transmission assembly 3.

[0042] The chain driving device of the embodiment of the present application ensures that the chain 5 can smoothly transition from the sprocket to the guide wheel through the chain groove segment, the chain blocking segment and the chain entry segment, and improves the stability of the chain 5 transmission.

[0043] In some embodiments, the first guide wheel is provided with a first chain blocking disc 24 along the circumference thereof away from the side of the first sprocket 22, and is provided with a first chain channel segment 211 along the circumference thereof close to the side of the first sprocket 22, the first chain channel segment 211 has a taper, the diameter of the side of the first chain channel segment 211 close to the first chain blocking disc 24 is greater than the diameter of the side of the first chain channel segment 211 away from the first chain blocking disc 24, and the diameter of the side of the first chain channel segment 211 close to the first chain blocking disc 24 is smaller than the outer diameter of the first chain blocking disc 24.

[0044] The second guide wheel is provided with a second chain blocking disc 34 along the circumference thereof away from the side of the second sprocket 32, and is provided with a second chain channel segment 311 along the circumference thereof close to the side of the second sprocket 32, the second chain channel segment 311 has a taper, the diameter of the side of the second chain channel segment 311 close to the second chain blocking disc 34 is greater than the diameter of the side of the second chain channel segment 311 away from the second chain blocking disc 34, and the diameter of the side of the second chain channel segment 311 close to the second chain blocking disc 34 is smaller than the outer diameter of the second chain blocking disc 34.

[0045] The chain driving device of the embodiment of the application avoids the chain 5 from falling off the guide wheel when the chain 5 is transferred from the sprocket to the guide wheel by arranging the first chain blocking disc 24 and the second chain blocking disc 34.

[0046] In some embodiments, the first chain groove section 221 and the second chain groove section 321 are both provided with rubber rings.

[0047] The chain driving device of the embodiment of the application is provided with the rubber rings outside the first chain groove section 221 and the second chain groove section 321, which can increase the friction between the chain 5 and the sprocket, and avoid the slippage of the chain 5 from affecting the stability of the transmission.

[0048] In some embodiments, the number of the driving components 4 is multiple, and the multiple driving components 4 are arranged at intervals.

[0049] Specifically, as shown in the figure, Figure 1 the number of the driving components 4 is two, and the two driving components 4 are arranged at intervals in the front-rear direction. By arranging multiple driving components 4, the pushing force on the second transmission assembly 3 can be improved, thereby improving the driving force of the chain 5 on the guide wheel and the sprocket, and improving the driving force of the chain driving device on the external device.

[0050] In some embodiments, the first transmission assembly 2 further comprises a first support frame 23, the first guide wheel 21 and the first sprocket 22 are connected to the first support frame 23 respectively, and the first guide wheel 21 and the first sprocket 22 are rotatable relative to the first support frame 23, and the second transmission assembly 3 comprises a second support frame 33, the second guide wheel 31 and the second sprocket 32 are connected to the second support frame 33 respectively, and the second guide wheel 31 and the second sprocket 32 are rotatable relative to the second support frame 33.

[0051] Specifically, as shown in the figure, Figure 1 the first support frame 23 and the second support frame 33 are connected to the base 1 respectively, the first guide wheel 21 and the first sprocket 22 are rotatable relative to the first support frame 23, and the second guide wheel 31 and the second sprocket 32 are rotatable relative to the second support frame 33.

[0052] The operation process of the chain 5 transmission device of some specific examples of the application will be described below with reference to Figures 1-6

[0053] The driving component 4 stretches to drive the second support frame 33 to move away from the first support frame 23, the chain 5 is stretched, the pushing force generated by the driving component 4 is converted into the driving force of the chain 5 to drive the second guide wheel 31 and the second sprocket 32, the second guide wheel 31 and the second sprocket 32 transmit the driving force to the first guide wheel 21 and the first sprocket 22 through the chain 5, and finally transmit the driving force to the external device through the output shaft, and the driving component 4 reciprocates between the first support frame 23 and the second support frame 33 to continuously transmit the pushing force of the driving component 4 to the external device.​

[0054] In the description of the present application, it is to be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are merely intended to facilitate the description of the present application and simplify the description, and are 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 on the present application.

[0055] In addition, the terms "first", "second", "third", etc. are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second", etc. can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0056] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication or interaction relationship of two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0057] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0058] In this disclosure, the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" mean that a particular feature, structure, material, or characteristic is included in at least one embodiment or example of the present disclosure. The illustrative appearances of the above-mentioned terms in various places in the specification are not necessarily referred to the same embodiment or example. Moreover, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples. Furthermore, the terminology "comprising" is used in the disclosure as comprising but not limited to, that is, it is open-ended and does not exclude the presence of additional features, structures, materials, or characteristics.

[0059] Although the embodiments of the present disclosure have been shown and described above, it is understood that the above-described embodiments are exemplary, and are not to be interpreted as limiting the present disclosure, and the ordinary skilled in the art can make changes, modifications, replacements, and variations to the above-described embodiments within the scope of the present disclosure.

Claims

1. A chain drive device, characterized in that: include: base; a first transmission assembly connected to the base, the first transmission assembly comprising a first guide wheel and a first sprocket, the first guide wheel and the first sprocket being spaced apart and eccentrically arranged; a second transmission assembly connected to the base and movable relative to the base, the second transmission assembly being spaced apart from the first transmission assembly, the second transmission assembly comprising a second guide wheel and a second sprocket, the second guide wheel and the second sprocket being spaced apart, and the second guide wheel and the second sprocket being eccentrically arranged; a driving component, one end of which is connected to the first transmission assembly, and the other end of which is connected to the second transmission assembly, wherein the driving component can drive the second transmission assembly away from or close to the first transmission assembly; A chain, wherein the chain is sequentially wound around the first guide wheel, the first sprocket, the second guide wheel, and the second sprocket, the diameter of the first sprocket is larger than the diameter of the first guide wheel, and the axis of the first guide wheel is higher than the axis of the first sprocket, the diameter of the second sprocket is larger than the diameter of the second guide wheel, and the axis of the second guide wheel is higher than the axis of the second sprocket, the chain forms a first center of gravity at the intersection of the first sprocket and the first guide wheel, a first lever arm point is formed at the highest point of the first sprocket, the distance from the first center of gravity to the first lever arm point is smaller than the distance from the first lever arm point to the axis of the first sprocket, the chain forms a first center of gravity at the intersection of the second sprocket and the second guide wheel The intersection of the second center of gravity is formed at the intersection of the second center of gravity, and the second force arm point is formed at the highest point of the second sprocket. The distance from the second center of gravity to the second force arm point is smaller than the distance from the second force arm point to the axis of the second sprocket. The first sprocket is provided with a first chain groove section along its circumferential direction, and the first chain groove section is used to accommodate the chain. The first chain groove section is provided with a first block chain segment on the side away from the first guide wheel, and a first chain entry segment is provided on the side close to the first guide wheel. The second sprocket is provided with a second chain groove section along its circumferential direction, and the second chain groove section is used to accommodate the chain. The second chain groove section is provided with a second block chain segment on the side away from the second guide wheel, and a second chain entry segment is provided on the side close to the second guide wheel.

2. The chain drive device according to claim 1, characterized in that The first sprocket and the first guide wheel are arranged at intervals in the width direction of the base, and the first sprocket and the first guide wheel are arranged in parallel. The second sprocket and the second guide wheel are arranged at intervals in the width direction of the base, and the second sprocket and the second guide wheel are arranged in parallel.

3. The chain drive device according to claim 2, characterized in that The distance between the first sprocket and the first guide wheel is smaller than the width of the chain, and the distance between the second sprocket and the second guide wheel is smaller than the width of the chain.

4. The chain drive device according to claim 3, characterized in that A first chain plate is provided along the circumference of the first guide wheel on a side away from the first sprocket, and a first chain path segment is provided along the circumference of the first guide wheel on a side close to the first sprocket. The first chain path segment has a taper, and the diameter of the first chain path segment on the side close to the first chain plate is larger than the diameter on the side away from the first chain plate, and the diameter on the side close to the first chain plate is smaller than the outer diameter of the first chain plate. A second chain plate is provided along the circumference of the second guide wheel on a side away from the second sprocket, and a second chain path segment is provided along the circumference of the second guide wheel on a side close to the second sprocket. The second chain path segment has a taper, and the diameter of the second chain path segment on the side close to the second chain plate is larger than the diameter on the side away from the second chain plate, and the diameter on the side close to the second chain plate is smaller than the outer diameter of the second chain plate.

5. The chain drive device according to claim 1, characterized in that The first chain slot section and the second chain slot section are both provided with rubber rings.

6. The chain drive device according to any one of claims 1 to 5, characterized in that: There are multiple driving components, and the multiple driving components are arranged at intervals.

7. The chain drive device according to any one of claims 1 to 5, characterized in that: The first transmission assembly further includes a first support frame, the first guide wheel and the first sprocket are respectively connected to the first support frame, and the first guide wheel and the first sprocket are rotatable relative to the first support frame. The second transmission assembly includes a second support frame, the second guide wheel and the second sprocket are respectively connected to the second support frame, and the second guide wheel and the second sprocket are rotatable relative to the second support frame.

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