Coaxial lifting and tensioning adjustable transmission platform system

Abstract

The utility model relates to a coaxial lifting and tensioning adjustable conveying platform system, belongs to the field of conveying systems, and solves the problem that the lifting heights of supporting platforms of a belt conveying system are inconsistent. The device comprises a synchronous pulley, a belt supporting platform, a synchronous belt, a lifting mechanism, a coaxial synchronizing mechanism, a V-shaped tensioning mechanism, a horizontal tensioning mechanism and a motor, the synchronous pulley is rotationally mounted at the end part of the belt supporting platform; the synchronous pulleys and the belt supporting platforms are symmetrically arranged in two groups; the synchronous belt is arranged outside the synchronous belt wheel in a sleeving mode. The V-shaped tensioning mechanism and the horizontal tensioning mechanism longitudinally and horizontally tension the synchronous belt respectively; the lifting mechanism is supported below the belt supporting platform; the number of the lifting mechanisms is two, and the two lifting mechanisms are driven by the coaxial synchronizing mechanism to ascend and descend synchronously. The motor is used for driving the lifting mechanism to lift. According to the conveying platform system, synchronous lifting of the supporting platform and horizontal tensioning and vertical tensioning of the synchronous belt are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to conveying system technical field especially relates to a coaxial lifting tension adjustable transmission platform system. BACKGROUND

[0002] In the CT detection process, the workpiece is transmitted from the feeding position through the imaging area and finally reaches the unloading area.

[0003] At present, the existing scheme adopts two lifting cylinders to lift two platforms, and synchronous lifting is realized through servo control. However, this scheme has the following shortcomings: two sets of servo motors are used, the cost is high, and the cumulative error of the system during the operation process will cause the two platforms to be out of synchronization, resulting in height difference.

[0004] During the conveying of the material, the height difference between the conveying platforms may cause the material conveying difficult, material tilting, tumbling and other problems; and the CT detection of the material is distorted.

[0005] Therefore, it is necessary to provide a conveying system meeting the needs of CT detection, which realizes the stable movement of the material during the conveying process. UTILITY MODEL CONTENT

[0006] In view of the above analysis, the utility model aims to provide a coaxial lifting tension adjustable transmission platform system to solve the problem of unstable material state caused by the inconsistent lifting height of the conveying platform during the conveying of the material in the existing CT detection process.

[0007] The purpose of the utility model is mainly realized through the following technical schemes:

[0008] A coaxial lifting tension adjustable transmission platform system, comprising: a synchronous pulley, a belt support platform, a synchronous belt, a lifting mechanism, a coaxial synchronous mechanism, a V-shaped tensioning mechanism, a horizontal tensioning mechanism and a motor;

[0009] The synchronous pulley is rotatably installed at the end of the belt support platform; the synchronous pulley and the belt support platform are symmetrically provided in two groups; the synchronous belt is annular, and the synchronous belt is sleeved and installed outside the two groups of synchronous pulleys;

[0010] The V-shaped tensioning mechanism comprises: a first adjusting rod assembly and a tensioning pulley; the first adjusting rod assembly is vertically installed on the belt support platform and can push the tensioning pulley to vertically displace, and then the tensioning pulley can tension the synchronous belt;

[0011] The horizontal tensioning mechanism comprises: a second adjusting rod assembly and a pulley mounting seat; the synchronous pulley is rotatably installed on the pulley mounting seat, and the second adjusting rod assembly is used for pushing the pulley mounting seat to horizontally displace;

[0012] The lifting mechanism is supported below the belt supporting platform; the lifting mechanism is provided with two groups, and the two groups of lifting mechanisms are synchronously lifted under the driving of the coaxial synchronous mechanism; the motor is used for driving the lifting mechanism to lift.

[0013] Further, the V-shaped tensioning mechanism further comprises: synchronous belt supporting wheels; the synchronous belt supporting wheels are rotationally installed on the side surface of the belt supporting platform; the synchronous belt supporting wheels are provided with two, and the two synchronous belt supporting wheels are located on the outside of the synchronous belt and are respectively located on the left and right sides of the tensioning wheels.

[0014] Further, a tensioning wheel adjusting support is fixedly installed below the belt supporting platform; a longitudinal sliding groove is formed in the tensioning wheel adjusting support; the installation shaft of the tensioning wheel is slidingly installed in the longitudinal sliding groove and is fixedly connected with the tensioning wheel installation support through the longitudinal sliding groove; the tensioning wheel installation support is fixedly connected with the first adjusting rod assembly.

[0015] Further, the first adjusting rod assembly comprises: a pressing adjusting top rod, a first limiting support and a first locking nut; one end of the pressing adjusting top rod is fixedly connected with the tensioning wheel installation support through the first limiting support, and the other end is screwed with the first locking nut; the first locking nut is used for limiting the displacement of the pressing adjusting top rod relative to the first limiting support.

[0016] Further, the second adjusting rod assembly comprises: a tensioning adjusting top rod, a second limiting support and a second locking nut; the second limiting support is fixedly installed on the side surface of the belt supporting platform; one end of the tensioning adjusting top rod is fixedly connected with the belt wheel installation seat through the second limiting support, and the other end is screwed with the second locking nut; the second locking nut is used for limiting the displacement of the tensioning adjusting top rod relative to the second limiting support.

[0017] Further, a telescopic guide mechanism is further included, and the guide mechanism is fixedly installed below the belt supporting platform; the guide mechanism comprises: a guide cylinder, a guide cylinder rod and a linear bearing; the guide cylinder rod is slidingly installed in the guide cylinder through the linear bearing.

[0018] In one embodiment of the utility model, the lifting mechanism is a worm lifting machine or a lead screw lifting machine; the coaxial synchronous mechanism comprises: a synchronous lifting transmission shaft and a shaft coupling; the two ends of the synchronous lifting transmission shaft are fixedly connected with the input shafts of the two lifting mechanisms through the shaft coupling, and then the motor can drive the two lifting mechanisms to synchronously lift.

[0019] In another embodiment of the utility model, the lifting mechanism comprises: a lifting column, a lifting screw rod and a mechanism shell; the lifting column is slidingly installed in the mechanism shell and is fixedly connected with the belt support platform at the upper end; the lifting screw rod and the lifting column form a screw rod pair; when the lifting screw rod rotates, it can drive the lifting column to displace up and down.

[0020] Further, the coaxial synchronous mechanism comprises: a rotating synchronous shaft, a first bevel gear, a second bevel gear, a first spur gear and a second spur gear; the rotating synchronous shaft is fixedly connected with the output shaft of the motor; the first bevel gear is fixedly installed on the rotating synchronous shaft; the first bevel gear meshes with the second bevel gear, and the second bevel gear rotates coaxially with the first spur gear; the first spur gear meshes with the second spur gear, and the second spur gear is fixedly connected with the lifting screw rod of the lifting mechanism and rotates synchronously, thereby driving the lifting column of the lifting mechanism to lift.

[0021] Further, the first bevel gear, the second bevel gear, the first spur gear and the second spur gear are provided with two groups, respectively used for driving the lifting screw rods of two lifting mechanisms to rotate, thereby realizing synchronous displacement of two lifting columns.

[0022] The utility model technical scheme can realize at least one of the following effects:

[0023] 1. The coaxial lifting tension adjustable transmission platform system of the utility model is used for feeding and discharging conveying of industrial CT detection, two groups of lifting mechanisms are arranged to lift the belt support platform, and the two groups of lifting mechanisms realize synchronous lifting through the coaxial synchronous mechanism, thereby realizing stable lifting of the transmission platform system and convenient adjustment.

[0024] 2. The coaxial lifting tension adjustable transmission platform system of the utility model is provided with a V-shaped tension mechanism and a horizontal tension mechanism, the displacement of the tension pulley and the synchronous pulleys on both sides is driven, the tension of the synchronous belt is realized, and the V-shaped tension mechanism and the horizontal tension mechanism can realize rapid and accurate position adjustment through the pressing adjustment jacks and the tension adjustment jacks.

[0025] 3. The coaxial lifting tension adjustable transmission platform system of the utility model is provided with two groups of horizontal tension mechanisms at both ends of the belt support platform, the position adjustment of the two groups of synchronous pulleys is realized by adjusting the position of the horizontal tension mechanisms, the distance between the two groups of synchronous pulleys can be adjusted, thereby the gap between the transmission platform system and the feeding and discharging end tables on both sides can be eliminated, and reliable connection between the transmission platform system and the feeding and discharging end tables can be realized.

[0026] The above technical solutions can be combined with each other to realize more optional combination solutions. Other features and advantages of the present application will be described in the following description, and some advantages can be apparent from the description or can be understood by implementing the present application. The purposes and other advantages of the present application can be realized and obtained from the contents particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0027] The drawings are only for the purpose of illustrating specific embodiments and are not considered as limiting the present application, and the same reference signs represent the same components throughout the drawings.

[0028] Figure 1 The coaxial lifting tension adjustable transmission platform system of embodiment 1 of the present application;

[0029] Figure 2 The mounting mode schematic view of the tensioning wheel of the coaxial lifting tension adjustable transmission platform system of embodiment 1 of the present application;

[0030] Figure 3 The structure schematic view of the V-shaped tensioning mechanism and the horizontal tensioning mechanism of the coaxial lifting tension adjustable transmission platform system of embodiment 1 of the present application;

[0031] Figure 4 The structure schematic view of the guiding mechanism of the coaxial lifting tension adjustable transmission platform system of embodiment 1 of the present application;

[0032] Figure 5 The structure schematic view of the coaxial lifting mechanism of the coaxial lifting tension adjustable transmission platform system of embodiment 1 of the present application;

[0033] Figure 6 The structure schematic view of the coaxial lifting mechanism of the coaxial lifting tension adjustable transmission platform system of embodiment 2 of the present application.

[0034] REFERENCE SIGNS:

[0035] 1 - loading end table; 2 - synchronous pulley; 3 - belt support platform; 4 - synchronous belt; 5 - lifting mechanism; 6 - synchronous lifting transmission shaft; 7 - guide mechanism; 8 - V-shaped tensioning mechanism; 9 - horizontal tensioning mechanism; 10 - guide cylinder; 11 - guide cylinder rod; 12 - linear bearing; 13 - pressing adjusting top rod; 14 - synchronous belt supporting wheel; 15 - tensioning wheel; 16 - belt wheel mounting seat; 17 - roller; 18 - tensioning adjusting top rod; 19 - bottom plate; 20 - shaft coupling; 21 - rotating synchronous shaft; 22 - shaft support seat; 23 - motor; 24 - tensioning wheel adjusting support; 25 - longitudinal sliding groove; 26 - tensioning wheel mounting support; 27 - first limiting support; 28 - first fastening nut; 29 - second fastening nut; 30 - second limiting support; 31 - unloading end table; 501 - lifting column; 502 - lifting screw; 503 - mechanism housing; 504 - first bevel gear; 505 - second bevel gear; 506 - first straight gear; 507 - second straight gear. DETAILED DESCRIPTION

[0036] The preferred embodiments of the present application will be described in detail below with reference to the drawings, wherein the drawings constitute a part of the present application and serve to explain the principles of the present application together with the embodiments of the present application, but are not intended to limit the scope of the present application.

[0037] Embodiment 1

[0038] A specific embodiment of the present application discloses a coaxial lifting tensioning adjustable transmission platform system, as shown in Figure 1 , Figure 2 , Figure 3 illustrated, comprising: synchronous pulley 2, belt support platform 3, synchronous belt 4, lifting mechanism 5, coaxial synchronous mechanism, V-shaped tensioning mechanism 8, horizontal tensioning mechanism 9 and motor 23; the synchronous pulley 2 is rotatably installed at the end of the belt support platform 3; the synchronous pulley 2 and the belt support platform 3 are symmetrically provided in two groups; the synchronous belt 4 is annular, and the synchronous belt 4 is sleeved and installed outside the two groups of synchronous pulleys 2; the V-shaped tensioning mechanism 8 comprises: a first adjusting rod assembly and a tensioning wheel 15; the first adjusting rod assembly is vertically installed on the belt support platform 3 and can push the tensioning wheel 15 to vertically displace, so that the tensioning wheel 15 can tension the synchronous belt 4; the horizontal tensioning mechanism 9 comprises: a second adjusting rod assembly and a belt wheel mounting seat 16; the synchronous pulley 2 is rotatably installed on the belt wheel mounting seat 16, and the second adjusting rod assembly is used for pushing the belt wheel mounting seat 16 to horizontally displace; the lifting mechanism 5 is supported below the belt support platform 3; the lifting mechanism 5 is provided in two groups, and the two groups of lifting mechanisms 5 are synchronously lifted under the driving of the coaxial synchronous mechanism; the motor 23 is used for driving the lifting mechanism 5 to lift.

[0039] Specifically, the synchronous pulley 2 comprises: pulley mounting seats 16 arranged on both sides of the belt supporting platform 3, a rotating shaft rotatably arranged between the two pulley mounting seats 16, and a roller 17 arranged outside the rotating shaft and capable of rotating synchronously with the rotating shaft. Specifically, a driving motor is fixedly arranged on the pulley mounting seat 16; in implementation, the rotating shaft and the roller 17 are driven to rotate by the driving motor, so as to realize the rotation of the synchronous belt 4.

[0040] Further, as shown in Figure 1 the adjustable conveying platform system is designed with an upper feeding end table 1 and a lower discharging end table 31 at two ends respectively, the conveying belts on the end tables are aligned left and right by moving the upper feeding end table 1 and the lower discharging end table 31, the belt supporting platform 3 is arranged at the end of the piston rod of the lifting mechanism 5, the piston rod drives the synchronous pulley 2, the synchronous belt 4 and the belt supporting platform 3 to lift, another set of lifting mechanisms 5 are driven to move by the transmission shaft 6 arranged on the lifting mechanism 5, so as to realize the synchronization of the lifting height of the two belt supporting platforms 3.

[0041] During the long-time movement of the synchronous belt 4, the overall length of the synchronous belt 4 may be elongated, so that a gap is formed between the synchronous belt 4 and the synchronous pulley 2, which affects the stability of the transmission. It is necessary to adjust the tightness of the synchronous belt 4 to ensure that the conveying precision of the CT detection meets the imaging requirements. Therefore, in the embodiment, a V-shaped tensioning mechanism 8 and a horizontal tensioning mechanism 9 are arranged to adjust the tightness of the synchronous belt 4.

[0042] In a specific embodiment of the utility model, the V-shaped tensioning mechanism 8 further comprises: a synchronous belt supporting roller 14; the synchronous belt supporting roller 14 is rotatably arranged on the side surface of the belt supporting platform 3; two synchronous belt supporting rollers 14 are arranged, and the two synchronous belt supporting rollers 14 are located outside the synchronous belt 4 and are respectively located on the left and right sides of the tensioning roller 15. During the process of tensioning the synchronous belt 4 by the tensioning roller 15, the two synchronous belt supporting rollers 14 limit the part of the synchronous belt 4 outside the V-shaped tensioning mechanism 8 to keep the shape unchanged, and the part of the synchronous belt 4 inside the V-shaped tensioning mechanism 8 is in the shape of V, as shown in Figure 2 In the embodiment, the synchronous belt supporting roller 14 is arranged to keep the overall shape of the synchronous belt 4 from changing greatly, so as to maintain the operation stability and reliability of the conveying platform system.

[0043] Specifically, the belt supporting platform 3 is fixedly arranged with a tensioning roller adjusting support 24 below; a longitudinal sliding groove 25 is formed in the tensioning roller adjusting support 24; the mounting shaft of the tensioning roller 15 is slidably arranged in the longitudinal sliding groove 25 and fixedly connected with the tensioning roller mounting support 26 through the longitudinal sliding groove 25; the tensioning roller mounting support 26 is fixedly connected with the first adjusting rod assembly.

[0044] As shown in Figure 3As shown, the first adjusting rod assembly includes: a tightening adjusting rod 13, a first limiting support 27 and a first locking nut 28; one end of the tightening adjusting rod 13 passes through the first limiting support 27 and is fixedly connected to the tensioning wheel mounting support 26, and the other end is screwed to the first locking nut 28 through a thread; the first locking nut 28 is used to limit the displacement of the tightening adjusting rod 13 relative to the first limiting support 27.

[0045] Specifically, the pressing and adjusting push rod 13 is screwed to the first limiting support 27 via threads.

[0046] Preferably, first locking nuts 28 are installed on both sides of the first limiting support 27 .

[0047] During implementation, by adjusting the installation position of the compression adjustment push rod 13 on the first limit support 27, the tensioning wheel installation support 26 is driven to move, which in turn can drive the tensioning wheel 15 to move up and down, thereby tensioning the synchronous belt 4 in the vertical direction.

[0048] like Figure 3 As shown, the second adjusting rod assembly includes: a tensioning adjusting rod 18, a second limiting support 30 and a second locking nut 29; the second limiting support 30 is fixedly installed on the side of the belt support platform 3; one end of the tensioning adjusting rod 18 passes through the second limiting support 30 and is fixedly connected to the pulley mounting seat 16, and the other end is screwed to the second locking nut 29, and the second locking nut 29 is used to limit the displacement of the tensioning adjusting rod 18 relative to the second limiting support 30.

[0049] Specifically, the tensioning and adjusting push rod 18 is screwed to the second limiting support 30 via threads.

[0050] Preferably, second locking nuts 29 are installed on both sides of the second limiting support 30 .

[0051] During implementation, by adjusting the installation position of the tensioning adjustment rod 18 on the second limit support 30, the synchronous pulley 2 is driven to move horizontally relative to the belt support platform 3, thereby tensioning the synchronous belt 4 in the horizontal direction.

[0052] In this embodiment, in order to ensure the parallelism of the synchronous belt plane during the lifting and lowering process of the transmission platform system, a guide mechanism 7 is designed. During the lifting and lowering process of the lifting mechanism 5, the belt support platform 3 drives the guide mechanism 7 to rise and fall synchronously, and the guide mechanism 7 is used to achieve the parallelism of the left and right sides of the synchronous belt plane during the lifting and lowering movement of the synchronous belt 4.

[0053] like Figure 1 As shown, the guide mechanism 7 is fixedly installed below the belt support platform 3. Specifically, the guide mechanism 7 is arranged on both sides of the lifting mechanism 5 and supported between the belt support platform 3 and the bottom plate 19, as shown in FIG. Figure 1 、 Figure 5The guiding mechanism 7 is preferably provided with eight groups, which are respectively arranged below the two belt support platforms 3.

[0054] As shown in Figure 4 The guiding mechanism 7 comprises a guiding cylinder 10, a guiding cylinder rod 11 and a linear bearing 12; the guiding cylinder rod 11 is slidingly arranged in the guiding cylinder 10 through the linear bearing 12.

[0055] In the embodiment, the guiding mechanism 7 is provided with the linear bearing on the guiding cylinder 10, so that the rolling friction between the guiding cylinder 10 and the guiding cylinder rod 11 is realized, the activity gap is reduced, and the parallelism of the upper surface of the synchronous belt 4 during the lifting of the belt support platform 3 is ensured.

[0056] In the embodiment, as shown in Figure 5 The lifting mechanism 5 is a worm lifting machine or a screw lifting machine; the coaxial synchronous mechanism comprises a synchronous lifting transmission shaft 6 and a shaft coupling 20; the two ends of the synchronous lifting transmission shaft 6 are fixedly connected to the input shafts of the two lifting mechanisms 5 through the shaft coupling 20, so that the two lifting mechanisms 5 can be lifted synchronously by the motor 23.

[0057] Further, the shaft support seat 22 is arranged on the bottom plate 19; the shaft support seat 22 is fixedly supported below the synchronous lifting transmission shaft 6 and arranged at the middle part of the synchronous lifting transmission shaft 6.

[0058] During implementation, the synchronous lifting transmission of the lifting mechanism 5 is realized by the lifting mechanism 5, the shaft coupling 20, the synchronous lifting transmission shaft 6 and the motor 23; the power output shaft of the motor 23, the transmission shaft 6 and the connecting shafts of the two lifting mechanisms 5 are connected through the shaft coupling 20, so that the shafts are prevented from being deflected during rotation; when the power output shaft of the motor 23 rotates, the synchronous lifting transmission shaft 6 and the shaft coupling 20 rotate synchronously, so as to drive the two lifting mechanisms 5 to lift synchronously. Since the whole transmission process is rigid connection, the relative asynchronous rotation does not occur, the synchronous action of the two lifting mechanisms 5 is realized, and the synchronous lifting of the synchronous belt 4 as a whole is realized by the belt support platform 3.

[0059] Embodiment 2

[0060] In one specific embodiment of the utility model, the coaxial synchronous mechanism is improved and designed on the basis of embodiment 1; in the embodiment, a coaxial synchronous mechanism different from embodiment 1 is provided.

[0061] As shown in Figure 6 The lifting mechanism 5 comprises a lifting column 501, a lifting screw rod 502 and a mechanism housing 503; the lifting column 501 is slidingly arranged in the mechanism housing 503 and fixedly connected to the belt support platform 3 at the upper end; the lifting screw rod 502 and the lifting column 501 form a screw pair; when the lifting screw rod 502 rotates, the lifting column 501 can be driven to displace upward and downward.

[0062] Further, as shown in Figure 6 , the coaxial synchronous mechanism comprises: a rotating synchronous shaft 21, a first bevel gear 504, a second bevel gear 505, a first spur gear 506 and a second spur gear 507; the rotating synchronous shaft 21 is fixedly connected with the output shaft of the motor 23; the first bevel gear 504 is fixedly installed on the rotating synchronous shaft 21; the first bevel gear 504 is engaged with the second bevel gear (505), and the second bevel gear 505 rotates coaxially with the first spur gear 506; the first spur gear 506 is engaged with the second spur gear 507, and the second spur gear 507 is fixedly connected with the lifting lead screw 502 of the lifting mechanism 5 and rotates synchronously, thereby being able to drive the lifting column 501 of the lifting mechanism 5 to lift.

[0063] Further, the first bevel gear 504, the second bevel gear 505, the first spur gear 506 and the second spur gear 507 are provided with two groups, respectively used to drive the lifting lead screws 502 of two lifting mechanisms 5 to rotate, thereby realizing the synchronous displacement of two lifting columns 501.

[0064] In implementation, the motor 23 drives the rotating synchronous shaft 21 and the two first bevel gears 504 to rotate synchronously, thereby the two groups of second bevel gears 505 and first spur gears 506 also rotate synchronously; when the two first spur gears 506 rotate, the two second spur gears 507 and the two lifting lead screws 502 rotate synchronously; thereby the up and down displacement of the two lifting columns 501 can be realized, and the up and down displacement of the two groups of belt supporting platforms 3 can be realized.

[0065] Specifically, as shown in Figure 6 , the rotating synchronous shaft 21 is coaxial with the first bevel gear 504 and the second bevel gear 505, and the second bevel gear 505 is coaxial with the first spur gear 506; at the same time, the second spur gear 507 is engaged with the first spur gear 506, but the axis of the second spur gear 507 is laterally offset from the rotating synchronous shaft 21; that is, the axes of the second spur gear 507 and the lifting lead screw 502 are arranged in space with the axis of the rotating synchronous shaft 21 being staggered; that is, the axes of the second spur gear 507 and the lifting lead screw 502 do not cross the axis of the rotating synchronous shaft 21 and its extension line. In the embodiment, the lifting lead screw 502 is staggered forward and backward from the rotating synchronous shaft 21, which can ensure that the movement of the two does not interfere with each other on the premise that the rotating synchronous shaft 21 synchronously drives the two groups of lifting mechanisms 5 to synchronously lift.

[0066] The coaxial lifting tension adjustable transmission platform system is used for conveying the detected workpiece during industrial CT detection, compared with the existing conveying platform system, has two lifting mechanisms 5 synchronous lifting, two groups of lifting mechanisms 5 realize synchronization through the coaxial synchronous mechanism composed of a rotating synchronous shaft 21, a first bevel gear 504, a second bevel gear 505, a first spur gear 506 and a second spur gear 507, the synchronization precision is high, and the guiding mechanism 7 is installed to ensure that the synchronous belt 4 is in the parallel state during the lifting process of the belt supporting platform 3.

[0067] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A coaxial lifting tensioning adjustable transmission platform system, characterized in that: include: Synchronous pulley (2), belt support platform (3), synchronous belt (4), lifting mechanism (5), coaxial synchronization mechanism, V-shaped tensioning mechanism (8), horizontal tensioning mechanism (9) and motor (23); The synchronous pulley (2) is rotatably mounted on the end of the belt support platform (3); the synchronous pulley (2) and the belt support platform (3) are symmetrically arranged in two groups; the synchronous belt (4) is annular, and the synchronous belt (4) is sleeved and mounted on the outside of the two groups of synchronous pulleys (2); The V-shaped tensioning mechanism (8) comprises: a first adjusting rod assembly and a tensioning wheel (15); the first adjusting rod assembly is vertically mounted on the belt supporting platform (3) and is capable of pushing the tensioning wheel (15) to vertically displace, thereby enabling the tensioning wheel (15) to tension the synchronous belt (4); The horizontal tensioning mechanism (9) comprises: a second adjusting rod assembly and a pulley mounting seat (16); the synchronous pulley (2) is rotatably mounted on the pulley mounting seat (16), and the second adjusting rod assembly is used to push the pulley mounting seat (16) to move horizontally; The lifting mechanism (5) is supported below the belt support platform (3); two groups of lifting mechanisms (5) are provided, and the two groups of lifting mechanisms (5) are synchronously lifted and lowered under the drive of the coaxial synchronization mechanism; the motor (23) is used to drive the lifting mechanism (5) to lift and lower.

2. The coaxial lifting tensioning adjustable transmission platform system according to claim 1 is characterized in that: The V-shaped tensioning mechanism (8) further comprises: a synchronous belt supporting wheel (14); the synchronous belt supporting wheel (14) is rotatably mounted on the side of the belt supporting platform (3); two synchronous belt supporting wheels (14) are provided, and both synchronous belt supporting wheels (14) are located outside the synchronous belt (4) and are respectively located on the left and right sides of the tensioning wheel (15).

3. The coaxial lifting tensioning adjustable transmission platform system according to claim 1 or 2, characterized in that: A tensioning wheel adjustment support (24) is fixedly installed below the belt support platform (3); a longitudinal slide groove (25) is provided on the tensioning wheel adjustment support (24); the mounting shaft of the tensioning wheel (15) is slidably mounted in the longitudinal slide groove (25), and passes through the longitudinal slide groove (25) and is fixedly connected to the tensioning wheel mounting support (26); the tensioning wheel mounting support (26) is fixedly connected to the first adjustment rod assembly.

4. The coaxial lifting tensioning adjustable transmission platform system according to claim 3 is characterized in that: The first adjusting rod assembly includes: a tightening adjusting rod (13), a first limiting support (27) and a first locking nut (28); one end of the tightening adjusting rod (13) passes through the first limiting support (27) and is fixedly connected to the tensioning wheel mounting support (26), and the other end is screwed to the first locking nut (28) through a thread; the first locking nut (28) is used to limit the displacement of the tightening adjusting rod (13) relative to the first limiting support (27).

5. The coaxial lifting tensioning adjustable transmission platform system according to claim 4 is characterized in that: The second adjustment rod assembly comprises: a tensioning adjustment rod (18), a second limiting support (30) and a second locking nut (29); the second limiting support (30) is fixedly mounted on the side of the belt support platform (3); one end of the tensioning adjustment rod (18) passes through the second limiting support (30) and is fixedly connected to the pulley mounting seat (16), and the other end is screwed to the second locking nut (29), and the second locking nut (29) is used to limit the displacement of the tensioning adjustment rod (18) relative to the second limiting support (30).

6. The coaxial lifting tensioning adjustable transmission platform system according to claim 1 is characterized in that: The invention also includes a retractable guide mechanism (7), which is fixedly installed below the belt support platform (3); the guide mechanism (7) includes: a guide cylinder (10), a guide cylinder rod (11) and a linear bearing (12); the guide cylinder rod (11) is slidably installed inside the guide cylinder (10) through the linear bearing (12).

7. The coaxial lifting tensioning adjustable transmission platform system according to claim 1 is characterized in that: The lifting mechanism (5) is a worm gear lift or a screw lift; the coaxial synchronization mechanism comprises: a synchronous lifting transmission shaft (6) and a coupling (20); the two ends of the synchronous lifting transmission shaft (6) are fixedly connected to the input shafts of the two lifting mechanisms (5) through the coupling (20), and the motor (23) can drive the two lifting mechanisms (5) to rise and fall synchronously.

8. The coaxial lifting tensioning adjustable transmission platform system according to claim 7 is characterized in that: The lifting mechanism (5) comprises: a lifting column (501), a lifting screw (502) and a mechanism housing (503); the lifting column (501) is slidably mounted in the mechanism housing (503), and the upper end is fixedly connected to the belt support platform (3); the lifting screw (502) and the lifting column (501) form a screw pair; when the lifting screw (502) rotates, it can drive the lifting column (501) to move up and down.

9. The coaxial lifting tensioning adjustable transmission platform system according to claim 1 is characterized in that: The coaxial synchronization mechanism comprises: a rotation synchronization shaft (21), a first bevel gear (504), a second bevel gear (505), a first spur gear (506) and a second spur gear (507); the rotation synchronization shaft (21) is fixedly connected to the output shaft of the motor (23); the first bevel gear (504) is fixedly mounted on the rotation synchronization shaft (21); the first bevel gear (504) is meshed with the second bevel gear (505), and the second bevel gear (505) rotates coaxially with the first spur gear (506); the first spur gear (506) is meshed with the second spur gear (507), and the second spur gear (507) is fixedly connected to the lifting screw (502) of the lifting mechanism (5) and rotates synchronously, thereby being able to drive the lifting column (501) of the lifting mechanism (5) to rise and fall.

10. The coaxial lifting tensioning adjustable transmission platform system according to claim 9, characterized in that: The first bevel gear (504), the second bevel gear (505), the first spur gear (506) and the second spur gear (507) are provided in two groups, which are respectively used to drive the lifting screws (502) of the two lifting mechanisms (5) to rotate, thereby achieving synchronous displacement of the two lifting columns (501).

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