Flexible roller chain conversion to rigid connected push-pull device

Abstract

The application provides a flexible roller chain conversion to rigid connection push-pull device, belongs to mechanical transmission technical field, including speed reducer and the operating mechanism installed below the speed reducer, the operating mechanism includes drive assembly and push-pull assembly;The drive assembly includes fixed frame, coupling sleeve, key body, shaft body, bearing and connecting body, the left side of the speed reducer is equipped with fixed frame, and the bottom of the speed reducer is equipped with coupling sleeve;The flexible roller chain conversion to rigid connection push-pull device provided by the application, when using, the guide block can rotate in the interior of the device through the top rivet pin, in the use process, the guide block is pressed to move left by the clamping column, then is inserted into the interior of the guide slot on the left side, the guide block arranged in sequence is inserted into the guide slot on the left side under the action of the clamping column in turn, when the roller chain disc rotates to 360 °, the roller chain mechanism is all stretched out, at this time, the stretched out roller chain mechanism forms relatively rigid connection, realizes the conversion of flexible to rigid.

Description

[0001] Technical field of the invention

[0002] The present application relates to the field of mechanical transmission technology, in particular to a flexible roller chain conversion to rigid connection push-pull device. BACKGROUND

[0003] If the factory workshop uses the cylinder station, the noise of the air pump is a big problem, and if the workshop uses the hydraulic cylinder station, the leakage of hydraulic oil is also a problem that cannot be ignored. If the working condition is suitable, the use of a speed reducer to drive a rotating flexible roller chain conversion to rigid connection push-pull device will greatly reduce the cost, save energy and materials, and be beneficial to environmental protection. As a power actuator, such as a cylinder or an oil cylinder, it is widely used in mechanical automation.

[0004] If the existing workshop has a cylinder or oil cylinder station, it needs an air source or a hydraulic pump station, the space size is relatively large, the installation and arrangement are complex, and the gas noise or hydraulic leakage is easy to cause pollution, which is not conducive to environmental protection. SUMMARY

[0005] The present application provides a flexible roller chain conversion to rigid connection push-pull device, which aims to solve the problem of the existing technology that if the existing workshop has a cylinder station, it needs an air source or a hydraulic pump station, the space size is relatively large, the installation and arrangement are complex, and the gas noise or hydraulic leakage is easy to cause pollution, which is not conducive to environmental protection.

[0006] The present application is implemented as follows: a speed reducer and an operating mechanism installed below the speed reducer are included, the operating mechanism includes a driving assembly and a push-pull assembly;

[0007] The driving assembly includes a fixed rack, a shaft sleeve, a key body, a shaft body, a bearing, and a connecting body, the left side of the speed reducer is provided with the fixed rack, and the bottom of the speed reducer is provided with the shaft sleeve, the bottom of the shaft sleeve is provided with the key body, the lower side of the key body is provided with the shaft body, the outer side of the shaft body is provided with the bearing, and the lower side of the bearing is provided with the connecting body;

[0008] The push-pull assembly includes a roller chain disc, a disc, and a roller chain mechanism, the lower side of the connecting body is provided with the roller chain disc, the outer side of the roller chain disc is provided with the disc, and the right side of the disc is provided with the roller chain mechanism.

[0009] Preferably, the edge of the roller chain disc is provided with a bolt, the end of the roller chain mechanism is provided with an ear joint, the upper side of the roller chain mechanism is provided with a toggle handle, the inner side of the toggle handle is provided with a spring, the bottom of the spring is provided with a clamping column, and the port of the disc is provided with a guide plate.

[0010] Preferably, the roller chain disc forms a rotating structure with the reducer through the connecting body, and the diameter of the roller chain disc pitch circle is calculated according to d = P / SIN(180 / Z).

[0011] Preferably, the roller chain mechanism comprises a guide block, a clamping groove, a mounting block, a top rivet pin, a parallel rod, a bottom rivet pin, a guide groove, a pin body, a sleeve body, a roller body, an inner chain plate and an outer chain plate, the top of the guide block is provided with the clamping groove, and the bottom of the guide block is provided with the mounting block, the inside of the mounting block is provided with the top rivet pin, the bottom of the top rivet pin is provided with the parallel rod, the bottom of the parallel rod is provided with the bottom rivet pin, the left side of the bottom rivet pin is provided with the guide groove, the rear of the guide groove is provided with the pin body, the outside of the pin body is provided with the sleeve body, the bottom of the sleeve body is provided with the roller body, the outside of the guide groove is provided with the inner chain plate, and the outside of the inner chain plate is provided with the outer chain plate.

[0012] Preferably, the guide block forms a rotating structure with the parallel rod through the top rivet pin, and the clamping grooves are uniformly distributed on the top of the guide block.

[0013] Preferably, the guide block forms a rotating structure with the bottom rivet pin through the parallel rod, and the guide block forms a lifting structure with the guide groove through the cooperation between the parallel rod and the bottom rivet pin, and the sizes of the guide block and the guide groove are matched with each other.

[0014] Preferably, the roller body forms a rotating structure with the sleeve body through the pin body, and the sleeve body and the roller body are arrayed inside the device.

[0015] Preferably, the clamping column forms a pressing structure with the spring and the knob through the knob, and the centers of the clamping column and the knob coincide with each other.

[0016] Preferably, the guide block forms an extension structure with the clamping groove and the clamping column through the cooperation therebetween, and the sizes of the clamping groove and the clamping column are matched with each other.

[0017] The flexible roller chain is converted into the rigid connection push-pull device, the roller chain disc can drive the connecting body to rotate through the speed reducer in use, the roller chain mechanism can be stored and discharged in rotation, the roller chain mechanism is arranged outside the roller chain disc in the non-use state, the shape parameters of the roller chain disc are manufactured according to the tooth profile groove standard of GNB1244-85, the axial tooth profile size is also according to the shape of GB1244-85, the width of bf is determined according to the guide block, the parallel rod, the guide groove, the pin body, the sleeve and the bottom rivet in the roller chain mechanism, the diameter of the index circle can be selected according to the standard pitch, the diameter of the index circle is calculated according to d=P / SIN(180 / Z), when the roller chain mechanism is rotated and extended, the unfolding length A=л*D, meanwhile, the shape of the roller chain mechanism is according to the shape of the standard GB1243.1-83, the thickness is increased according to the increase of the axial tooth profile thickness size of the roller chain disc, and the thickness is matched accordingly;

[0018] The flexible roller chain is converted into the rigid connection push-pull device, the guide block can rotate in the interior of the device through the top rivet in use, the guide block is pressed to move left by the clamping column in the use process, and then is inserted into the interior of the left guide groove, the guide blocks arranged in sequence are inserted into the left guide groove under the action of the clamping column in turn, when the roller chain disc rotates to 360 degrees, the roller chain mechanism is fully extended, and the extended roller chain mechanism forms relatively rigid connection, so that the flexible to rigid conversion is realized.

[0019] The flexible roller chain is converted into the rigid connection push-pull device, the guide block is pressed to move left by the clamping column, and then is inserted into the interior of the left guide groove, the guide blocks arranged in sequence are inserted into the left guide groove under the action of the clamping column in turn, when the roller chain disc rotates to 360 degrees, the roller chain mechanism is fully extended, and the extended roller chain mechanism forms relatively rigid connection, so that the flexible to rigid conversion is realized, the freedom degree of the roller chain mechanism in the plane perpendicular to the axial tooth profile of the roller chain disc is constrained in the use process of the device, the roller chain mechanism cannot bend relatively, and the movement and bending are only the gap between the chains, if the gap is small enough, the relatively rigid connection can be achieved.

[0020] The flexible roller chain is converted into the rigid connection push-pull device, the freedom degree of the roller chain mechanism in the plane of the axial tooth profile of the roller chain disc is constrained when in use, the relative bending is not allowed, the movement and the bending are only the gap between the chains, if the gap is small enough, the relative rigid connection can be achieved; the chain in the plane of the axial tooth profile of the roller chain disc is not constrained and can be freely bent, so the plane of the axial tooth profile of the roller chain mechanism is made into the pin fitting form of the constrained freedom degree, the principle of the parallel four-bar mechanism is used, the speed reducer drives the roller chain disc to rotate, under the action of the clamping column, the parallel rod rotates to the right, the guide block is inserted into the guide groove on the left side, under the action of the clamping column, the parallel rod rotates to the left when the roller chain mechanism is fully retracted, the guide block is withdrawn from the guide groove on the left side, the roller body can be engaged on the roller chain disc, as long as each guide block and the guide groove meet the tolerance matching requirements in the processing process, the shaking amount of the connection is ensured to be controlled in a small range, at the same time, the disc and the connection body can also limit the swing of the whole roller chain, the freedom degree of the plane of the axial tooth profile of the roller chain disc is also constrained, the relative rigid connection can be achieved. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or in the prior art, below the drawings needed to be used in the embodiments will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the mechanical transmission technical field, other drawings can also be obtained without creative labor. Through the drawings shown, the above and other purposes, features and advantages of the present application will be more clear. In all the drawings, the same reference signs indicate the same parts. The drawings are not drawn in proportion to the actual size, and the emphasis is on showing the main idea of the present application.

[0022] Figure 1 is the front view structural schematic diagram of the flexible roller chain converted into the rigid connection push-pull device provided by the embodiments of the present application;

[0023] Figure 2 is the top view push-out structural schematic diagram of the flexible roller chain converted into the rigid connection push-pull device provided by the embodiments of the present application;

[0024] Figure 3 is the top view storage structural schematic diagram of the flexible roller chain converted into the rigid connection push-pull device provided by the embodiments of the present application;

[0025] Figure 4 is the Figure 1 is the enlarged structural schematic diagram of A in the figure;

[0026] Figure 5is the pin chain retraction structure schematic view of the flexible roller chain converted to the rigid connection push-pull device provided by the embodiment of the present application Figure 1 is the enlarged structure schematic view at B among the above-mentioned

[0027] Figure 6 is the pin chain retraction structure schematic view of the flexible roller chain converted to the rigid connection push-pull device provided by the embodiment of the present application

[0028] Figure 7 is the left view structure schematic view of the roller chain mechanism of the flexible roller chain converted to the rigid connection push-pull device provided by the embodiment of the present application

[0029] Figure 8 is the top view structure schematic view of the roller chain mechanism of the flexible roller chain converted to the rigid connection push-pull device provided by the embodiment of the present application

[0030] Figure 9 is the bottom view structure schematic view of the roller chain mechanism of the flexible roller chain converted to the rigid connection push-pull device provided by the embodiment of the present application.

[0031] Summary of signs: 1, speed reducer; 2, fixed frame; 3, shaft sleeve; 4, key; 5, shaft; 6, bearing; 7, connecting body; 8, bolt; 9, roller chain disc; 10, disc; 11, roller chain mechanism; 1101, guide block; 1102, clamping groove; 1103, mounting block; 1104, top rivet pin; 1105, parallel rod; 1106, bottom rivet pin; 1107, guide groove; 1108, pin body; 1109, sleeve; 1110, roller body; 1111, inner chain plate; 1112, outer chain plate; 12, ear ring joint; 13, puller handle; 14, spring; 15, clamping column; 16, guide plate. DETAILED DESCRIPTION

[0032] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the mechanical transmission art without creative labor fall within the scope of protection of the present application.

[0034] It should be noted that like reference numerals and characters refer to like elements throughout the following description and the claims attached hereto. Therefore, once any certain element is defined in one drawing, it is not necessary to further define and explain it in the subsequent drawings.

[0035] In addition, the terms "first", "second", and the like are used only to distinguish descriptions, and cannot be understood as indicating or implying relative importance.

[0036] Embodiment, please refer to Figures 1-9 .

[0037] The embodiment provides a flexible roller chain conversion to rigid connection push-pull device, including speed reducer 1 and the operating mechanism installed below speed reducer 1, operating mechanism includes drive assembly and push-pull assembly;

[0038] The drive assembly includes fixed frame 2, shaft sleeve 3, key body 4, shaft body 5, bearing 6 and connecting body 7, the left side of speed reducer 1 is provided with fixed frame 2, and the bottom of speed reducer 1 is provided with shaft sleeve 3, the bottom of shaft sleeve 3 is provided with key body 4, the lower side of key body 4 is provided with shaft body 5, and the outer side of shaft body 5 is provided with bearing 6, and the lower side of bearing 6 is provided with connecting body 7;

[0039] The push-pull assembly includes roller chain disc 9, disc 10 and roller chain mechanism 11, the lower side of connecting body 7 is provided with roller chain disc 9, and the outer side of roller chain disc 9 is provided with disc 10, and the right side of disc 10 is provided with roller chain mechanism 11.

[0040] The edge of roller chain disc 9 is provided with bolt 8, the end of roller chain mechanism 11 is provided with ear joint 12, and the upper side of roller chain mechanism 11 is provided with knob handle 13, the inner side of knob handle 13 is provided with spring 14, and the bottom of spring 14 is provided with clamping column 15, and the port of disc 10 is provided with guide plate 16.

[0041] The roller chain disc 9 is rotatably connected between the connecting body 7 and the speed reducer 1, and the diameter of the index circle of the roller chain disc 9 is calculated according to d=P / SIN(180 / Z), so that the roller chain disc 9 can drive the connecting body 7 to rotate through the speed reducer 1, and at the same time, the roller chain mechanism 11 can be stored and discharged. In the non-use state, the roller chain mechanism 11 is wound outside the roller chain disc 9. The profile parameters of the roller chain disc 9 are manufactured according to the tooth profile groove standard of GNB1244-85, and the axial tooth profile size is also according to the profile of GB1244-85. The width of bf1 is determined according to the guide block 1101, the parallel rod 1105, the guide groove 1107, the pin body 1108, the sleeve body 1109 and the bottom rivet 1106 in the roller chain mechanism 11. The diameter of the index circle can be selected according to the standard pitch, and the diameter of the index circle is calculated according to d=P / SIN(180 / Z). When the roller chain mechanism 11 is rotated and extended, the unfolded length A=л*D. The profile of the roller chain mechanism 11 is according to the standard GB1243.1-83, and the thickness is increased accordingly to match the increase of the axial tooth profile thickness of the roller chain disc 9.

[0042] The roller chain mechanism 11 includes a guide block 1101, a clamping groove 1102, a mounting block 1103, a top rivet 1104, a parallel rod 1105, a bottom rivet 1106, a guide groove 1107, a pin body 1108, a sleeve body 1109, a roller body 1110, an inner chain plate 1111 and an outer chain plate 1112. The top of the guide block 1101 is provided with the clamping groove 1102, and the bottom of the guide block 1101 is provided with the mounting block 1103. The inside of the mounting block 1103 is provided with the top rivet 1104, and the bottom of the top rivet 1104 is provided with the parallel rod 1105. The bottom of the parallel rod 1105 is provided with the bottom rivet 1106, and the left side of the bottom rivet 1106 is provided with the guide groove 1107. The rear of the guide groove 1107 is provided with the pin body 1108, and the outside of the pin body 1108 is provided with the sleeve body 1109. The bottom of the sleeve body 1109 is provided with the roller body 1110, and the outside of the guide groove 1107 is provided with the inner chain plate 1111. The outside of the inner chain plate 1111 is provided with the outer chain plate 1112.

[0043] The guide block 1101 is rotatable by the top rivet 1104 and the parallel rod 1105, and the clamping grooves 1102 are uniformly distributed on the top of the guide block 1101, so that the guide block 1101 can rotate in the interior of the device by the top rivet 1104. In use, the guide block 1101 is pressed to move to the left by the clamping column 15, and then is inserted into the left guide groove 1107. The guide blocks 1101 arranged in sequence are inserted into the left guide groove 1107 under the action of the clamping column 15. When the roller chain disc 9 rotates to 360°, the roller chain mechanism 11 is fully extended, and at this time, the extended roller chain mechanism 11 forms a relatively rigid connection, realizing the conversion of flexibility to rigidity.

[0044] The guide block 1101 is rotatable by the parallel rod 1105 and the bottom rivet 1106, and the guide block 1101 and the guide groove 1107 form a lifting structure by cooperation between the parallel rod 1105 and the bottom rivet 1106. The size of the guide block 1101 and the guide groove 1107 matches each other, so that the guide block 1101 can rotate by the bottom rivet 1106. The bottom rivet 1106, the parallel rod 1105 and the top rivet 1104 can support the guide block 1101. At the same time, the guide block 1101 rotates by the clamping groove 1102 and the bottom rivet 1106, which facilitates the insertion of the guide block 1101 into the guide groove 1107 and the conversion of rigidity and flexibility of the device.

[0045] The roller body 1110 is rotatable by the pin body 1108 and the sleeve body 1109, and the sleeve body 1109 and the roller body 1110 are arrayed in the interior of the device, so that the roller body 1110 and the sleeve body 1109 can rotate in the interior of the device. The sleeve body 1109 can rotate by the pin body 1108 and the roller body 1110, which facilitates the connection of the roller chain mechanism 11 arrayed in the interior of the device and the coiling of the roller body 1110 and the sleeve body 1109 outside the roller chain disc 9 to accommodate the roller chain mechanism 11.

[0046] The clamping column 15 is pressed by the spring 14 and the knob 13, and the centers of the clamping column 15 and the knob 13 coincide with each other, so that the clamping column 15 can press the guide block 1101. After pressing, the clamping column 15 returns to the original position by the spring 14, so that the clamping column 15 can press each guide block 1101 to accommodate the guide block 1101 in the guide groove 1107.

[0047] The guide block 1101 is pressed to move left by the cooperation between the clamping slot 1102 and the clamping column 15, and then is inserted into the inside of the left guide slot 1107. The guide blocks 1101 arranged in sequence are inserted into the left guide slot 1107 under the action of the clamping column 15. When the roller chain disc 9 rotates to 360°, the roller chain mechanism 11 is fully extended, and the extended roller chain mechanism 11 forms a relatively rigid connection to realize the conversion of flexibility to rigidity. The freedom of the roller chain mechanism 11 in the plane perpendicular to the axial tooth profile of the roller chain disc 9 is constrained during use of the device, and the relative bending is not allowed. The movement and bending generated are only the gap between the chains. If the gap is small enough, a relatively rigid connection can be achieved.

[0048] Working principle, first, the device drives the connecting body 7 to rotate through the speed reducer 1. When the main shaft of the speed reducer 1 rotates clockwise, the roller chain mechanism 11 is ejected along with the rotation of the roller chain disc 9. The tangent direction of the disc 10 receiving part of the outlet of the roller chain mechanism 11 is provided with a guide plate 16, so that the roller chain mechanism 11 can extend along the tangent direction of the guide plate 16. At this time, the roller chain mechanism 11 is pressed to move left by the clamping column 15, and then is inserted into the inside of the left guide slot 1107. The guide blocks 1101 arranged in sequence are inserted into the left guide slot 1107 under the action of the clamping column 15. When the roller chain disc 9 rotates to 360°, the roller chain mechanism 11 is fully extended, and the extended roller chain mechanism 11 forms a relatively rigid connection to realize the conversion of flexibility to rigidity. The guide block 1101 can rotate through the bottom rivet pin 1106 during the extension process, which facilitates the support of the bottom rivet pin 1106, the parallel rod 1105 and the top rivet pin 1104 to the guide block 1101. At the same time of supporting, the guide block 1101 also rotates through the clamping slot 1102 and the bottom rivet pin 1106, which facilitates the insertion of the guide block 1101 into the guide slot 1107 and facilitates the conversion of rigidity and flexibility of the device. At the same time, the roller body 1110 and the sleeve body 1109 can rotate with each other in the inside of the device, and the sleeve body 1109 can rotate with the roller body 1110 through the pin body 1108, which facilitates the connection of the array distributed in the inside of the device to the roller chain mechanism 11, and facilitates the coiling of the roller body 1110 and the sleeve body 1109 on the outside of the roller chain disc 9 to store the roller chain mechanism 11.

[0049] After the main shaft of the speed reducer 1 rotates counterclockwise, the roller chain mechanism 11 is retracted as the roller chain plate 9 rotates, the clamping column 15 presses the guide block 1101, the parallel rod 1105 rotates to the right, the guide block 1101 exits the left guide groove 1107, and returns to the original position. When the roller chain plate 9 continues to rotate to 360 degrees, it is fully retracted, and the speed reducer 1 works through the cycle of forward and reverse rotation. The roller chain mechanism 11 acts as an execution element to transmit power, and the ear ring joint 12 can be connected to different forms of thrust rods to complete the automation work in cooperation with electricity.

[0050] The device is used in the process of using the plane perpendicular to the axial tooth profile of the roller chain plate 9. The degree of freedom of the roller chain mechanism 11 is constrained, and the relative bending is not allowed. The movement and bending generated is only the gap between the chains. If the gap is small enough, a relatively rigid connection can be achieved. The chains in the axial tooth profile plane of the roller chain plate 9 are not constrained and can bend freely. Therefore, the vertical direction of the axial tooth profile of the roller chain mechanism 11 is made into a pin fitting form with constrained degrees of freedom. Using the principle of parallel four-bar mechanism, the speed reducer 1 drives the roller chain plate 9 to rotate. Under the action of the clamping column 15, the parallel rod 1105 rotates to the right, and the guide block 1101 is inserted into the left guide groove 1107. As long as each guide block 1101 and guide groove 1107 have a tolerance matching requirement in the processing process, the relative rigid connection can be achieved by controlling the shaking amount of the connection within a small range. Then, after the roller chain mechanism 11 is fully extended, the disc 10 and the connecting body 7 can limit the swing of the entire roller chain. Similarly, when the roller chain mechanism is fully retracted, the parallel rod 1105 rotates to the left under the action of the clamping column 15, and the guide block 1101 exits the left guide groove 1107. The roller body 1110 can be engaged with the roller chain plate 9 。

[0051] The above description of the disclosed embodiments enables a person skilled in the mechanical transmission technology field to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the mechanical transmission technology field, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A flexible roller chain converted to a rigid connected push-pull device comprising a reduction gear and an operating mechanism mounted below the reduction gear, characterized in that: The operating mechanism comprises a driving assembly and a push-pull assembly; The driving assembly comprises a fixed rack, a shaft sleeve, a key body, a shaft body, a bearing and a connecting body, the fixed rack is installed on the left side of the speed reducer, the shaft sleeve is installed on the bottom of the speed reducer, the key body is installed on the bottom of the shaft sleeve, the shaft body is installed below the key body, the bearing is installed on the outside of the shaft body, and the connecting body is installed below the bearing; The push-pull assembly comprises a roller chain disc, a disc and a roller chain mechanism, the connecting body is installed below the roller chain disc, the disc is installed on the outside of the roller chain disc, and the roller chain mechanism is installed on the right side of the disc; The edge of the roller chain disc is provided with a bolt, the end of the roller chain mechanism is provided with an ear joint, the upper side of the roller chain mechanism is provided with a toggle lever, the inside of the toggle lever is provided with a spring, the bottom of the spring is provided with a clamping column, and the port of the disc is provided with a guide plate; The top of the guide block is provided with a clamping groove, the bottom of the guide block is provided with a mounting block, the inside of the mounting block is provided with a top rivet, the bottom of the top rivet is provided with a parallel rod, the bottom of the parallel rod is provided with a bottom rivet, the left side of the bottom rivet is provided with a guide groove, the rear of the guide groove is provided with a pin body, the outside of the pin body is provided with a sleeve body, the bottom of the sleeve body is provided with a roller body, the outside of the guide groove is provided with an inner chain plate, and the outside of the inner chain plate is provided with an outer chain plate; In use, the guide block is pressed to move left by the clamping column, and then is inserted into the inside of the guide groove on the left side, and the guide blocks arranged in sequence are inserted into the guide groove on the left side under the action of the clamping column.

2. A flexible link push-pull device converted to a rigid connection according to claim 1, characterized in that, The roller chain disc and the speed reducer constitute a rotating structure through the connecting body, and the diameter of the index circle of the roller chain disc is calculated according to d=P / SIN(180° / Z).

3. A flexible link push-pull device converted to a rigid connection according to claim 1, characterized in that, The guide block and the parallel rod constitute a rotating structure through the top rivet, and the clamping grooves are uniformly distributed on the top of the guide block.

4. The flexible link converted to a rigid connected push-pull device of claim 1, wherein, The guide block and the bottom rivet constitute a rotating structure through the parallel rod, the guide block and the guide groove constitute a lifting structure through the cooperation between the parallel rod and the bottom rivet, and the sizes of the guide block and the guide groove match each other.

5. The flexible link converted to a rigid connected push-pull device of claim 1, wherein, The roller body and the sleeve body constitute a rotating structure through the pin body, and the sleeve body and the roller body are arrayed in the inside of the device.

6. A flexible link converted to a rigid connected push-pull device according to claim 1, characterized in that, The clamping column and the toggle lever constitute a pressing structure through the spring, and the centers of the clamping column and the toggle lever coincide with each other.

7. A flexible link converted to a rigid connected push-pull device according to claim 1, wherein, The guide block and the clamping column constitute an extension structure through the cooperation between the clamping groove and the clamping column, and the sizes of the guide block and the clamping column match each other.

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