Segmented drafting transmission device for middle roller of spinning frame

Abstract

The utility model belongs to the technical field of spinning frames, and particularly relates to a segmented drafting transmission device for a roller in a spinning frame, two groups of segmented drafting transmission devices are arranged on a rack in a central symmetry structure, and each segmented drafting transmission device comprises a V-shaped mounting plate matched with the section of an air duct; a first adjusting assembly and a second adjusting assembly are further arranged on the V-shaped mounting plate, a reduction gearbox is arranged between the first adjusting assembly and the second adjusting assembly, and the reduction gearbox comprises a sealing box body and a speed reduction assembly; the speed reduction motor and the speed reduction box are combined with the V-shaped mounting plate and the middle roller to perform special structural arrangement, so that the size of the device is simplified on the premise that the functions of the device are guaranteed, occupation of spindle space in a spinning frame is reduced, the torsional vibration phenomenon of the middle roller is weakened to be within an allowable range, and meanwhile, the torsional vibration of the middle roller is reduced. Compared with the structure of a spinning frame in the prior art, the loss yield is reduced, and the advantage of improving the yield of the spinning frame is reflected from the side.

Description

Technical Field

[0001] The utility model belongs to the technical field of spinning frames, and in particular relates to a segmented drafting transmission device for rollers in a spinning frame. Background Art

[0002] The spinning capacity of a spinning frame directly depends on the number of its spinning spindles. In order to improve its production efficiency, the number of spindles of the spinning frame is generally increased by increasing the length of the rollers. However, such a setting has certain limitations: taking the middle rollers of the spinning frame as an example, there are two middle rollers, and the head drafting transmission device and the tail drafting transmission device of the spinning frame provide the same torque at the same time. Increasing the length of each middle roller will increase the aspect ratio of the roller. Although it directly leads to an increase in the number of spindles and an increase in output in the overall spinning frame, the larger the rollers, the more spindles the machine will produce. The elongated diameter ratio will cause the torque transmitted by the drafting transmission device at the head and tail of the spinning machine to lag at the end of each middle roller. At this time, due to the characteristics of the iron roller material, the end of each middle roller will suddenly release the torque within a certain period of time when the lag occurs, which is a periodic torsional vibration phenomenon. When the feeding amount of the rear roller of the spinning machine is constant, when the end of the middle roller produces torsional vibration, the feeding amount of the middle roller to the front roller will produce periodic unevenness, resulting in an increase in the coarse and fine details of the finished yarn, affecting the yarn dryness.

[0003] In order to reduce the torsional vibration of the middle roller, the prior art designs the middle roller into three sections in the overall long machine of the spinning machine, wherein the front drafting transmission device provides torque for the first section of the middle roller, a transition box is added between the first section and the second section of the middle roller to provide torque for the second section of the middle roller, and the rear drafting transmission device provides torque for the third section of the middle roller. This design makes the length of each section of the middle roller shorter than before, thereby reducing the torsional vibration of the middle roller to an allowable range.

[0004] However, although the above-mentioned existing technology reduces the occurrence of torsional vibration of the middle roller during the operation of the spinning frame, the transition box has a relatively complex internal structure, and the cost of designing and producing is relatively high. In addition, the volume of the main body is relatively large, which will occupy the original spindle space of the spinning frame, resulting in a reduction in the number of spindles of the spinning frame, thereby reducing the output of the spinning frame. Therefore, how to design a segmented drafting transmission device for the middle roller to achieve the purpose of reducing investment and reducing production losses in terms of cost and appearance is a problem that needs to be urgently solved in the existing textile machinery field. Utility Model Content

[0005] In view of this, the present application provides a segmented drafting transmission device for the middle roller of a spinning frame, which arranges the reduction motor, the reduction box, the "V"-shaped mounting plate and the middle roller in a special structure, so that the device can be simplified in size while ensuring its function, thereby reducing the space occupied by the spindle in the spinning frame, aiming to reduce the torsional vibration of the middle roller to an allowable range while increasing the output of the spinning frame compared to the prior art.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A segmented drafting transmission device for rollers in a spinning frame is arranged on a frame of the spinning frame, wherein the frame is composed of two parallel mounting tubes and an air duct between the two mounting tubes, and a plurality of support frames are arranged below the two mounting tubes. In addition, two groups of spinning working parts are arranged above the frame, and the two groups of spinning working parts are arranged on both sides of the air duct through a plurality of support plates. The spinning working parts include a front roller, a middle roller and a rear roller arranged in sequence. On this basis, the spinning frame also includes a head drafting transmission device and a tail drafting transmission device. The segmented drafting transmission device is provided with two groups and is arranged on the frame in a centrally symmetrical structure. The segmented drafting transmission device includes:

[0008] The "V"-shaped mounting plate is the mounting base of the entire segmented drafting transmission device. The "V"-shaped mounting plate is inverted and arranged above the air duct and is matched with the cross section of the air duct. The two bottom feet of the "V"-shaped mounting plate are respectively provided with a first mounting plate and a second mounting plate. The first mounting plate and the second mounting plate are respectively connected with the bolts of the two mounting tubes to realize the installation of the "V"-shaped mounting plate on the two mounting tubes. The "V"-shaped mounting plate is also provided with a clearance hole. A group of long strip-shaped adjustment holes are provided on both sides of the clearance hole. The adjustment direction of the adjustment hole is 45° with the horizontal plane; on this basis, the "V"-shaped mounting plate is also provided with a first adjustment component and a second adjustment component. A reduction box is provided between the first adjustment component and the second adjustment component for adjusting the position of the reduction box. The adjustment direction of the first adjustment component and the second adjustment component is parallel to the adjustment direction of the adjustment hole;

[0009] A reduction box, comprising a sealed box body and a reduction assembly, wherein the reduction box is arranged on one side of a "V"-shaped mounting plate through the cooperation of the sealed box body, the adjustment hole and the fastening bolts, and a reduction assembly is arranged inside the sealed box body, and the reduction assembly is composed of six groups of double-row gear assemblies meshed in sequence. In addition, the input end of the reduction box is connected with a reduction motor, and the reduction motor is placed on the other side of the "V"-shaped mounting plate through the giving way of the giving way hole; the output end of the reduction box is connected with a bidirectional connecting shaft, and both ends of the bidirectional connecting shaft are connected with roller output connecting shafts through couplings, and each roller output connecting shaft is threadedly connected with a middle roller; on this basis, the reduction ratio of the reduction box is 30:1, and the reduction box amplifies the torque output by the reduction motor by 1:30;

[0010] On this basis, the middle rollers include four, namely the first middle roller, the second middle roller, the third middle roller and the fourth middle roller, wherein the first middle roller is connected to the front drafting transmission device, the fourth middle roller is connected to the rear drafting transmission device, and the second middle roller and the third middle roller are respectively arranged at both ends of the bidirectional connecting shaft through couplings and the roller output connecting shaft.

[0011] Preferably, ribs are provided between the “V”-shaped mounting plate and the first mounting plate and the second mounting plate, and the ribs are located on both sides of the “V”-shaped mounting plate.

[0012] Further, on the “V”-shaped mounting plate, the first adjustment component is arranged above the clearance hole;

[0013] The first adjustment assembly includes a third mounting plate mounted on the "V"-shaped mounting plate by a first screw, a first adjustment plate is provided on one side of the third mounting plate, a first adjustment bolt is threadedly connected to the first adjustment plate through a first threaded hole, and a rotation adjustment direction of the first adjustment bolt is parallel to an adjustment direction of the adjustment hole;

[0014] The first adjustment assembly also includes a first adjustment block disposed on the sealed housing of the reduction box, the first adjustment block having a first adjustment surface perpendicular to the rotation adjustment direction of the first adjustment bolt, and the first adjustment surface abuts against the end of the first adjustment bolt.

[0015] Furthermore, on the “V”-shaped mounting plate, the second adjustment assembly is disposed above the first mounting plate;

[0016] The second adjustment assembly includes a fourth mounting plate mounted on the "V"-shaped mounting plate by a second screw, a second adjustment plate is provided on one side of the fourth mounting plate, a second adjustment bolt is threadedly connected to the second adjustment plate through a second threaded hole, a rotation adjustment direction of the second adjustment bolt is parallel to an adjustment direction of the adjustment hole, and the second adjustment bolt is arranged opposite to the first adjustment bolt;

[0017] The second adjustment assembly also includes a second adjustment block arranged on the sealed box body of the reduction gear box, the second adjustment block has a second adjustment surface perpendicular to the rotation adjustment direction of the second adjustment bolt, the second adjustment surface abuts against the end of the second adjustment bolt, and the reduction gear box is moved and adjusted on a straight line at an angle of 45° to the horizontal plane by adjusting the extension amount of the first adjustment bolt and the second adjustment bolt, as well as the adjustment amount of the fastening bolt.

[0018] Preferably, the maximum adjustment stroke of the adjustment hole, the first adjustment bolt and the second adjustment bolt is 20 mm.

[0019] More preferably, a Hall mounting frame is provided on the "V"-shaped mounting plate at a side close to the reduction motor, and a Hall element is provided on the Hall mounting frame for detecting the rotational speed of the coupling.

[0020] More preferably, in the reduction gearbox, an oil filling hole is further provided at the top end of the sealed box body, and an oil drain hole is further provided at the bottom end of the sealed box body. Both the oil filling hole and the oil drain hole are connected to the interior of the sealed box body and are used for respectively injecting and draining lubricating oil into and out of the sealed box body. Both the oil filling hole and the oil drain hole are provided with sealing covers. An oil mark is also provided on the sealed box body for observing the content of lubricating oil in the sealed box body.

[0021] The beneficial effects of the utility model are:

[0022] Generally speaking, the utility model uses a special reduction gearbox to amplify the initial torque by 1:30 on the basis of the initial torque provided by the reduction motor, so that the whole long spinning frame can work normally, and the middle rollers are set to four sections. The head drafting transmission device provides torque for the first middle roller, and the tail drafting transmission device provides torque for the fourth middle roller. The segmented drafting transmission device provides torque for the second middle roller and the third middle roller in both directions. Such an arrangement shortens the length of each middle roller, thereby greatly reducing the torsional vibration of each middle roller, thereby improving the quality of the finished spinning. In addition, the utility model also uses a "V"-shaped mounting plate to fit the reduction motor and the reduction gearbox on the frame of the spinning frame, and simplifies the overall volume of the segmented drafting transmission device, thereby reducing the spindle space occupied by the device on the spinning frame. Compared with the structure of the spinning frame in the prior art, the loss of production is reduced, which indirectly reflects the advantage of the device in improving the production of the spinning frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a schematic diagram of the connection state between the drafting transmission structure and the middle roller in the prior art;

[0025] Figure 2 A schematic diagram of the connection state between the drafting transmission structure and the middle roller provided by the technical solution of the utility model;

[0026] Figure 3 It is a specific structural schematic diagram of the utility model in which the segmented drafting transmission device is arranged on the frame;

[0027] Figure 4 It is a specific structural schematic diagram of the segmented drafting transmission device in the utility model;

[0028] Figure 5 It is a schematic diagram of the specific structure of the segmented drafting transmission device in the utility model;

[0029] Figure 6 It is another angle schematic diagram of the specific structure of the segmented drafting transmission device in the utility model;

[0030] Figure 7 It is a schematic diagram of the internal structure of the reduction gearbox in the utility model. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0033] In the prior art, the middle roller 1 in the spinning frame is designed as a three-section form, such as Figure 1 As shown, specifically, the front drafting transmission device 4 provides torque for the first middle roller 101, a transition box 2 is added between the first middle roller 101 and the second middle roller 102 to provide torque for the second middle roller 102, and the rear drafting transmission device 3 provides torque for the third middle roller 103, so that the length of each section of the middle roller is shortened compared with before, thereby reducing the torsional vibration phenomenon of each section of the middle roller to an allowable range; and the transition box 2 has a more complex internal structure, a higher design and production cost, and a larger body volume, which will occupy the original spindle space of the spinning frame, resulting in a reduction in the number of spindles of the spinning frame, thereby reducing the output of the spinning frame.

[0034] In view of this, the present technical solution provides a segmented drafting transmission device for rollers in a spinning frame, such as Figure 2-3 As shown, the reduction motor 10 and the reduction box 9 are combined with the "V"-shaped mounting plate 8 for a special structural arrangement, so that the middle roller 1 is set to four sections under the premise that the entire long spinning machine can work normally, and the head drafting transmission device 4 provides torque for the first middle roller 101, and the tail drafting transmission device 3 provides torque for the fourth middle roller 104, and the segmented drafting transmission device provides torque for the second middle roller 102 and the third middle roller 103 in both directions. Such an arrangement shortens the length of each section of the middle roller, thereby greatly reducing the torsional vibration phenomenon of each section of the middle roller, thereby improving the quality of the finished spinning; in addition, the utility model also simplifies the overall volume of the segmented drafting transmission device, thereby reducing the spindle space occupied by the device on the spinning frame, and compared with the structure of the spinning frame in the prior art, the loss of production is reduced, which indirectly reflects the advantage of the device in increasing the production of the spinning frame.

[0035] In this technical solution, if Figure 2-3 As shown, a segmented drafting transmission device for rollers in a spinning frame is arranged on a frame 5 of the spinning frame. The frame 5 is composed of two parallel mounting tubes 501 and an air duct 502 located between the two mounting tubes 501. A plurality of support frames 503 are arranged under the two mounting tubes 501. On this basis, the spinning frame also includes a head drafting transmission device 4 and a tail drafting transmission device 3.

[0036] Two sets of spun yarn working parts are arranged above the frame 5, and the two sets of spun yarn working parts are arranged on both sides of the air duct 502 through a plurality of support plates 504. The spun yarn working parts include a front roller 6, a middle roller 1 and a rear roller 7 which are arranged in sequence.

[0037] It should be understood that the working part of the spinning frame realizes the spinning work through the front roller 6, the middle roller 1 and the rear roller 7 that cooperate with each other. In the overall long spinning frame, the length of the front roller 6, the middle roller 1 and the rear roller 7 can reach 20m. During the drafting transmission process, the torsional vibration of the rollers will occur, so it is necessary to carry out segmented drafting transmission. In this application, the torsional vibration phenomenon generated during the working process of the middle roller 1 is mainly weakened through a new technical solution, while taking into account the impact of the overall volume of the provided device on the original number of spindles of the spinning frame, that is, the original output; and the actual working form of the front roller 6 and the rear roller 7 is not elaborated here.

[0038] As an innovative point of the present utility model, Figure 2 As shown, the middle roller 1 in the utility model includes four rollers, namely the first middle roller 101, the second middle roller 102, the third middle roller 103 and the fourth middle roller 104, wherein the first middle roller 101 is connected to the front drafting transmission device 4, and the fourth middle roller 104 is connected to the rear drafting transmission device 3.

[0039] In this technical solution, if Figure 3-4 As shown, the segmented drafting transmission device is provided with two groups, and is arranged on the frame 5 in a centrally symmetrical structure. The segmented drafting transmission device includes a "V"-shaped mounting plate 8, a reduction box 9 and a reduction motor 10.

[0040] Among them, the "V"-shaped mounting plate 8 is inverted and arranged above the air duct 502 and is matched with the cross-section of the air duct 502. The first mounting plate 801 and the second mounting plate 802 are respectively provided at the two bottom feet of the "V"-shaped mounting plate 8. The first mounting plate 801 and the second mounting plate 802 are respectively connected to the two mounting tubes 501 by bolts, so that the "V"-shaped mounting plate 8 is installed on the two mounting tubes 501. In addition, ribs 803 are provided between the "V"-shaped mounting plate 8 and the first mounting plate 801 and the second mounting plate 802, and the ribs 803 are located on both sides of the "V"-shaped mounting plate 8.

[0041] Based on the above embodiment, the "V"-shaped mounting plate 8 is installed above the air duct 502 in cooperation with the first mounting plate 801 and the second mounting plate 802, and the stability is enhanced by the rib plate 803, so that the "V"-shaped mounting plate 8 becomes the installation base of the entire segmented drafting transmission device.

[0042] In the utility model, Figure 4-7 As shown, a first adjusting component 11 and a second adjusting component 12 are provided on the “V”-shaped mounting plate 8 , and a reduction box 9 is provided between the first adjusting component 11 and the second adjusting component 12 .

[0043] The reduction box 9 includes a sealed box body 901 and a reduction assembly 902 . The reduction box 9 is arranged on one side of the “V”-shaped mounting plate 8 through the cooperation of the sealed box body 901 , the adjustment hole 805 and the fastening bolts 909 .

[0044] As another innovative point of the utility model, Figure 5-7 As shown, a reduction assembly 902 is provided inside the sealed box 901, and the reduction assembly 902 is composed of six sets of double-row gear assemblies meshing in sequence, such as Figure 7 As shown, in addition, the input end of the reduction box 9 is connected to the reduction motor 10, and the reduction motor 10 is placed on the other side of the "V"-shaped mounting plate 8 through the giving way of the giving way hole 804; the output end of the reduction box 9 is connected to the bidirectional connecting shaft 903, and both ends of the bidirectional connecting shaft 903 are connected to the roller output connecting shaft 905 through the coupling 904, and the two roller output connecting shafts 905 are respectively threadedly connected to the second middle roller 102 and the third middle roller 103; on this basis, the reduction ratio of the reduction box 9 is 30:1, and the reduction box 9 amplifies the torque output by the reduction motor 10 by 1:30.

[0045] At this point, the utility model, based on the front drafting transmission device 4 providing torque for the first middle roller 101 and the rear drafting transmission device 3 providing torque for the fourth middle roller 101, simultaneously outputs torque to the second middle roller 102 and the third middle roller 103 through the reduction box 9, so that the length of each middle roller is shortened, and the torsional vibration phenomenon of each middle roller is greatly weakened, thereby improving the quality of the finished spun yarn.

[0046] In addition, the utility model also miniaturizes the main structure of the reduction box 9 on the premise that the reduction box 9 is matched with the reduction motor 10 to provide the power basis for the movement of the middle roller, so that the overall volume of the segmented drafting transmission device is relatively streamlined, and the volume of the transition box in the prior art is smaller, and the number of spindles occupied is smaller, thereby achieving the purpose of reducing loss of production.

[0047] As another innovation of the utility model, it should be noted that a clearance hole 804 is also provided on the "V"-shaped mounting plate 8, and a group of long adjustment holes 805 are provided on both sides of the clearance hole 804. The adjustment direction of the adjustment hole 805 is 45° to the horizontal plane, and the maximum adjustment stroke of the adjustment hole 805 is 20 mm.

[0048] In addition, in this technical solution, if Figure 4-5 As shown, the first adjustment component 11 is arranged above the make way hole 804, and the first adjustment component 11 includes a third mounting plate 112 mounted on the "V"-shaped mounting plate 8 by a first screw 111, and a first adjustment plate 113 is provided on one side of the third mounting plate 112, and a first adjustment bolt 114 is threadedly connected to the first adjustment plate 113 through a first threaded hole, and the rotation adjustment direction of the first adjustment bolt 114 is parallel to the adjustment direction of the adjustment hole 805.

[0049] The first adjustment assembly 11 also includes a first adjustment block 115 disposed on the sealed box body 901 of the reduction box 9. The first adjustment block 115 has a first adjustment surface 116 perpendicular to the rotation adjustment direction of the first adjustment bolt 114. The first adjustment surface 116 abuts against the end of the first adjustment bolt 114.

[0050] On this basis, if Figure 4-5 As shown, the second adjustment component 12 is arranged above the first mounting plate 801, and the second adjustment component 12 includes a fourth mounting plate 122 installed on the "V"-shaped mounting plate 8 by a second screw 121, and a second adjustment plate 123 is provided on one side of the fourth mounting plate 122, and a second adjustment bolt 124 is threadedly connected to the second adjustment plate 123 through a second threaded hole. Similarly, the rotation adjustment direction of the second adjustment bolt 124 is parallel to the adjustment direction of the adjustment hole 805, and the second adjustment bolt 124 is arranged opposite to the first adjustment bolt 114.

[0051] The second adjustment assembly 12 also includes a second adjustment block 125 arranged on the sealed box body 901 of the reduction box 9. The second adjustment block 125 has a second adjustment surface 126 perpendicular to the rotation adjustment direction of the second adjustment bolt 124. The second adjustment surface 126 abuts against the end of the second adjustment bolt 124.

[0052] Based on the above embodiment, by adjusting the extension amount of the first adjusting bolt 114 and the second adjusting bolt 124, and the adjustment amount of the position of the fastening bolt 909 in the adjusting hole 805, the reduction box 9 can be moved and adjusted on a straight line at an angle of 45° to the horizontal plane, thereby realizing the adjustment of the position of the center roller so that it can better cooperate with the front roller 6 and the rear roller 7. The maximum adjustment stroke of the first adjusting bolt 114 and the second adjusting bolt 124 is the same as the adjusting hole 805, which is 20 mm. On this basis, the setting of the first adjusting component 11 and the second adjusting component 12 also provides better protection for the stability of the reduction box 9, which is conducive to more stable operation of the segmented drafting transmission device.

[0053] In this technical solution, if Figure 6 As shown, on the "V"-shaped mounting plate 8, a Hall mounting bracket 806 is also provided on the side close to the reduction motor 9, and a Hall element is provided on the Hall mounting bracket 806 for detecting the rotational speed of the coupling 904, wherein the Hall element can be a commonly used device in the prior art, and no clear limitation is made for this, and the Hall element is not shown in the figure.

[0054] In addition, if Figure 5 As shown, we have also adaptively set the necessary structure of the reduction box 9 based on the present technical solution. In the reduction box 9, an oil filling hole 906 is further provided at the top of the sealed box body 901, and an oil drain hole 907 is further provided at the bottom of the sealed box body 901. The oil filling hole 906 and the oil drain hole 907 are both connected to the interior of the sealed box body 901, and are used to inject and drain lubricating oil into and out of the sealed box body 901 respectively. The oil filling hole 906 and the oil drain hole 907 are both provided with sealing covers; an oil mark 908 is also provided on the sealed box body 901 for observing the content of lubricating oil in the sealed box body 1.

[0055] Specifically, when the segmented drafting transmission device provided by the utility model is used to provide torque for the middle roller, the "V"-shaped mounting plate 8 is firstly installed on the frame 5 in a symmetrical and fitting manner through the first mounting plate 801 and the second mounting plate 802, and then the reduction box 9 and the reduction motor 10 are preliminarily installed on the "V"-shaped mounting plate 8 through the adjustment hole 805 and the fastening bolt 909;

[0056] Then, the middle roller 1 is arranged to be four sections, and the first middle roller 101 is connected to the front drafting transmission device 4, and the fourth middle roller 104 is connected to the rear drafting transmission device 3, and then the second middle roller 102 and the third middle roller 103 are respectively connected through the two-way connecting shaft 903 at the output end of the reduction box 9, the coupling 904 and the roller output connecting shaft 905. At this point, when the spinning frame is working, the four sections of the middle rollers rotate at the same speed and run together, and such an arrangement shortens the length of each section of the middle roller, thereby greatly reducing the torsional vibration phenomenon of each section of the middle roller, thereby improving the quality of the finished spinning;

[0057] Then, the first adjusting bolt 114 of the first adjusting component 11 and the second adjusting bolt 124 of the second adjusting component 12 are matched and abutted with the first adjusting surface 116 and the second adjusting surface 126 respectively to complete the assembly of the reduction box 9 and the middle roller 1; the segmented drafting transmission device arranges the reduction motor 10, the reduction box 9 in combination with the "V"-shaped mounting plate 8 and the middle roller 1 in a special structure, so that the device can be streamlined in size while ensuring its function, thereby reducing the space occupied by the spindles in the spinning frame, aiming to reduce the torsional vibration of the middle roller 1 to an allowable range while increasing the output of the spinning frame compared with the prior art.

[0058] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A segmented drafting transmission device for rollers in a spinning frame, which is arranged on a frame of the spinning frame, wherein the frame is composed of two parallel mounting tubes and an air duct between the two mounting tubes, and a plurality of support frames are arranged below the two mounting tubes. In addition, two groups of spinning working parts are arranged above the frame, and the two groups of spinning working parts are arranged on both sides of the air duct through a plurality of support plates. The spinning working parts include a front roller, a middle roller and a rear roller arranged in sequence. On this basis, the spinning frame also includes a head drafting transmission device and a tail drafting transmission device, which is characterized in that: The segmented drafting transmission device is provided with two groups, and is centrally symmetrically arranged on the frame. The segmented drafting transmission device comprises: The "V"-shaped mounting plate is the mounting base of the entire segmented drafting transmission device. The "V"-shaped mounting plate is inverted and arranged above the air duct and matches the cross section of the air duct. The two bottom feet of the "V"-shaped mounting plate are respectively provided with a first mounting plate and a second mounting plate. The first mounting plate and the second mounting plate are respectively connected with bolts of two mounting tubes to realize the installation of the "V"-shaped mounting plate on the two mounting tubes. The "V"-shaped mounting plate is also provided with a clearance hole. A group of long strip-shaped adjustment holes are provided on both sides of the clearance hole. The adjustment direction of the adjustment hole is 45° with the horizontal plane; on this basis, the "V"-shaped mounting plate is also provided with a first adjustment component and a second adjustment component. A reduction box is provided between the first adjustment component and the second adjustment component for adjusting the position of the reduction box. The adjustment direction of the first adjustment component and the second adjustment component is parallel to the adjustment direction of the adjustment hole; A reduction box, comprising a sealed box body and a reduction assembly, wherein the reduction box is arranged on one side of a "V"-shaped mounting plate through the cooperation of the sealed box body, the adjustment hole and the fastening bolts, and a reduction assembly is arranged inside the sealed box body, and the reduction assembly is composed of six groups of double-row gear assemblies meshed in sequence, and in addition, a reduction motor is connected to the input end of the reduction box, and the reduction motor is placed on the other side of the "V"-shaped mounting plate through the giving way of the giving way hole; a bidirectional connecting shaft is connected to the output end of the reduction box, and both ends of the bidirectional connecting shaft are connected to roller output connecting shafts through couplings, and each roller output connecting shaft is threadedly connected to a middle roller; on this basis, the reduction ratio of the reduction box is 30:1, and the reduction box amplifies the torque output by the reduction motor by 1:30; On this basis, the middle rollers include four, namely the first middle roller, the second middle roller, the third middle roller and the fourth middle roller, wherein the first middle roller is connected to the front drafting transmission device, the fourth middle roller is connected to the rear drafting transmission device, and the second middle roller and the third middle roller are respectively arranged at both ends of the bidirectional connecting shaft through couplings and the roller output connecting shaft.

2. The segmented drafting transmission device for rollers in a spinning frame according to claim 1, characterized in that: Ribs are provided between the "V"-shaped mounting plate and the first mounting plate and the second mounting plate, and the ribs are located on both sides of the "V"-shaped mounting plate.

3. The segmented drafting transmission device for rollers in a spinning frame according to claim 1, characterized in that: On the "V"-shaped mounting plate, the first adjustment component is arranged above the clearance hole; The first adjustment assembly includes a third mounting plate mounted on the "V"-shaped mounting plate by a first screw, a first adjustment plate is provided on one side of the third mounting plate, a first adjustment bolt is threadedly connected to the first adjustment plate through a first threaded hole, and a rotation adjustment direction of the first adjustment bolt is parallel to an adjustment direction of the adjustment hole; The first adjustment assembly also includes a first adjustment block disposed on the sealed housing of the reduction box, the first adjustment block having a first adjustment surface perpendicular to the rotation adjustment direction of the first adjustment bolt, and the first adjustment surface abuts against the end of the first adjustment bolt.

4. The segmented drafting transmission device for rollers in a spinning frame according to claim 3 is characterized in that: On the "V"-shaped mounting plate, the second adjustment assembly is arranged above the first mounting plate; The second adjustment assembly includes a fourth mounting plate mounted on the "V"-shaped mounting plate by a second screw, a second adjustment plate is provided on one side of the fourth mounting plate, a second adjustment bolt is threadedly connected to the second adjustment plate through a second threaded hole, a rotation adjustment direction of the second adjustment bolt is parallel to an adjustment direction of the adjustment hole, and the second adjustment bolt is arranged opposite to the first adjustment bolt; The second adjustment assembly also includes a second adjustment block arranged on the sealed box body of the reduction gear box, the second adjustment block has a second adjustment surface perpendicular to the rotation adjustment direction of the second adjustment bolt, the second adjustment surface abuts against the end of the second adjustment bolt, and the reduction gear box is moved and adjusted on a straight line at an angle of 45° to the horizontal plane by adjusting the extension amount of the first adjustment bolt and the second adjustment bolt, as well as the adjustment amount of the fastening bolt.

5. The segmented drafting transmission device for rollers in a spinning frame according to claim 4, characterized in that: The maximum adjustment stroke of the adjustment hole, the first adjustment bolt and the second adjustment bolt is 20 mm.

6. The segmented drafting transmission device for rollers in a spinning frame according to claim 1, characterized in that: A Hall mounting frame is also provided on the "V"-shaped mounting plate, close to the side of the reduction motor, and a Hall element is provided on the Hall mounting frame for detecting the rotational speed of the coupling.

7. The segmented drafting transmission device for rollers in a spinning frame according to claim 1, characterized in that: In the reduction gearbox, an oil filling hole is provided at the top of the sealed box body, and an oil drain hole is provided at the bottom of the sealed box body. The oil filling hole and the oil drain hole are both connected to the interior of the sealed box body and are used to inject and drain lubricating oil into and out of the sealed box body respectively. The oil filling hole and the oil drain hole are both provided with sealing covers; an oil mark is also provided on the sealed box body for observing the content of lubricating oil in the sealed box body.

Images