CN215236764U - Horizontal shaft rack group for producing cold-formed steel - Google Patents

Abstract

The utility model provides a horizontal shaft rack group for cold-formed steel production, which comprises a rack, a horizontal shaft and a roller, wherein the horizontal shaft comprises an upper horizontal shaft and a lower horizontal shaft which are parallel, the roller comprises an upper roller arranged on the upper horizontal shaft and a lower roller arranged on the lower horizontal shaft, and a hole pattern is formed between the upper roller and the lower roller; the horizontal shaft is connected with the roller through an expanding sleeve mechanism; the expansion sleeve mechanism comprises a connecting inner ring assembled on the outer periphery of the horizontal shaft, a connecting outer ring assembled on the inner periphery of the roller and a pressing assembly assembled between the connecting inner ring and the connecting outer ring, wherein the pressing assembly acts on the connecting inner ring and the connecting outer ring, so that the connecting inner ring and the horizontal shaft can be in clearance fit or interference fit, and the connecting outer ring and the roller can be in interference fit. This application can make things convenient for and swiftly adjust the position of roll on the horizontal axis through the cover mechanism that rises, and does not need the dismouting horizontal axis, reduces the wearing and tearing of spare part, prolongs the life of horizontal axis frame group.

Description

Horizontal shaft rack group for producing cold-formed steel

Technical Field

The utility model relates to a cold-formed steel production technical field especially relates to a horizontal axis frame group of cold-formed steel production usefulness.

Background

The production of cold-bending section steel by roll bending forming, no matter open section steel or closed section steel, is produced by continuous deformation of a multi-frame horizontal shaft frame set for cold-bending section steel production. At present, as shown in fig. 1, a horizontal shaft frame set for producing cold-formed steel mainly includes an upper horizontal shaft 21, a lower horizontal shaft 22, a frame 10, an upper roll 31 mounted on the upper horizontal shaft 21, a lower roll 32 mounted on the lower horizontal shaft 22, bearings mounted at both ends of the upper horizontal shaft 21 and the lower horizontal shaft 22, and bearing blocks 60 on which the bearings are mounted, the upper horizontal shaft 21 and the upper roll 31, and the lower horizontal shaft 22 and the lower roll 32 are connected by flat keys, and a space between the upper roll 31 and the lower roll 32 forms a pass 40 for roll bending a steel strip. The speed reducer 80 inputs the rotation speed and the torque to the upper horizontal shaft 21 and the lower horizontal shaft 22 through the universal joint transmission shaft 90, the upper horizontal shaft 21 and the lower horizontal shaft 22 transmit the rotation speed and the torque to the upper roller 31 and the lower roller 32 through the flat keys, the upper roller 31 and the lower roller 32 rotate in a contra-rotating manner to drive the deformed steel strip to move, and the steel strip is bent. The horizontal shaft machine frame groups which are arranged for multiple times are arranged on the machine table along the moving direction of the steel strip, and the horizontal shaft machine frame groups which are arranged for multiple times form a cold-formed steel production machine set, so that the continuous roll bending deformation of steel is completed.

Generally, a cold-formed steel production unit can produce cold-formed steel with different sections and dimensions by changing the space between an upper roller and a lower roller so as to form pass with different sections and dimensions; namely: the positioning of the upper roll on the upper horizontal axis and the positioning of the lower roll on the lower horizontal axis are changed. The current operation method comprises the following steps: the whole set of components of the horizontal shaft (namely an upper horizontal shaft and a lower horizontal shaft) and the rollers (namely an upper roller and a lower roller) are detached from the rack, then the rollers and the cushion covers are detached from the horizontal shaft, and are recombined and assembled once again according to the design size, and the newly-assembled whole set of components of the horizontal shaft and the rollers is installed back to the rack again. However, when removing the complete set of horizontal axis tandem roll components, the universal joint transmission shafts need to be removed, and each universal joint transmission shaft has at least 4 bolts. The conventional square tube cold-formed steel production unit has 21 or more horizontal shaft frame sets, and each time of replacing one product specification, the operation cost is over ten hours, and the operation efficiency is extremely low. Moreover, the equipment is frequently disassembled and assembled, so that the abrasion is easily increased, and the service life is shortened.

SUMMERY OF THE UTILITY MODEL

In view of the above prior art's shortcoming, the to-be-solved technical problem of the utility model is to provide a horizontal axis frame group of cold-formed steel production usefulness, can swiftly change the pass, and need not dismouting upper and lower horizontal axis.

In order to achieve the above object, the present invention provides a horizontal shaft rack set for producing cold-formed steel, comprising a rack, a horizontal shaft rotatably mounted on the rack, and a roller mounted on the horizontal shaft, wherein the horizontal shaft comprises an upper horizontal shaft and a lower horizontal shaft which are parallel, the roller comprises an upper roller mounted on the upper horizontal shaft and a lower roller mounted on the lower horizontal shaft, and a pass is formed between the upper roller and the lower roller; the horizontal shaft is connected with the roller through an expansion sleeve mechanism; the expansion sleeve mechanism comprises a connecting inner ring assembled on the periphery of a horizontal shaft, a connecting outer ring assembled on the inner periphery of a roller and a pressing assembly assembled between the connecting inner ring and the connecting outer ring, wherein an inner ring opening which is axially communicated is formed in the circumferential direction of the connecting inner ring, an outer ring opening which is axially communicated is formed in the circumferential direction of the connecting outer ring, and the pressing assembly acts on the connecting inner ring and the connecting outer ring to enable the connecting inner ring and the horizontal shaft to be in clearance fit or interference fit and enable the connecting outer ring and the roller to be in interference fit.

Further, the compression assembly comprises a first compression ring and a second compression ring which are arranged side by side along the axial direction of the horizontal shaft, a gap formed between the first compression ring and the second compression ring, and a tension bolt in threaded connection with at least one of the first compression ring and the second compression ring, wherein the inner diameter of the first compression ring and the inner diameter of the second compression ring are gradually increased along the direction close to the gap, and the outer diameter of the first compression ring and the outer diameter of the second compression ring are gradually reduced along the direction close to the gap;

the connecting inner ring is a double-cone inner ring, and the outer peripheral surface of the double-cone inner ring is provided with a first outer peripheral conical surface matched with the inner peripheral conical surface of the first compression ring and a second outer peripheral conical surface matched with the inner peripheral conical surface of the second compression ring;

the connecting outer ring is a double-cone outer ring, and the inner peripheral surface of the double-cone outer ring is provided with a first inner peripheral conical surface matched with the outer peripheral conical surface of the first compression ring and a second inner peripheral conical surface matched with the outer peripheral conical surface of the second compression ring.

Furthermore, a through hole allowing the tension bolt to pass through is formed in the first compression ring, and a threaded hole in threaded fit with the tension bolt is formed in the second compression ring.

Furthermore, the tensioning bolts are uniformly distributed along the circumferential direction of the first compression ring and the second compression ring.

Furthermore, both ends of the upper horizontal shaft and both ends of the lower horizontal shaft are rotatably mounted on the frame through bearing seats in which bearings are mounted.

Furthermore, the horizontal shaft rack group also comprises a pressing component, the bearing seat is arranged on the rack in a vertically sliding manner, and the pressing component is connected with the bearing seat and drives the bearing seat to move up and down.

Furthermore, the screw-down assembly comprises a driving motor, a screw rod which is driven by the driving motor to rotate and extends up and down, and a sliding block which is in threaded fit with the screw rod and is fixed with the bearing seat, and the screw rod is rotatably arranged on the rack.

Furthermore, horizontal axis frame group still includes speed reducer and universal joint transmission shaft, the one end of universal joint transmission shaft is fixed continuous with the output shaft of speed reducer, and the other end is fixed continuous with the horizontal axis.

As mentioned above, the utility model relates to a horizontal axis frame group of cold-formed steel production usefulness has following beneficial effect:

in the application, the pressing assembly in the expansion sleeve mechanism acts on the connecting inner ring and the connecting outer ring, the gap between the connecting inner ring and the horizontal shaft and the gap between the connecting outer ring and the roller can be changed, so that the connecting inner ring is in clearance fit with the horizontal shaft, and the position of the roller on the horizontal shaft can be adjusted; and then, the inner connecting ring is in interference fit with the horizontal shaft, and the outer connecting ring is in interference fit with the roller, so that the roller can be fixed on the horizontal shaft. Therefore, the position of the roller on the horizontal shaft can be conveniently and quickly adjusted through the expansion sleeve mechanism, the horizontal shaft does not need to be disassembled and assembled, the abrasion of parts is reduced, and the service life of the horizontal shaft frame set is prolonged.

Drawings

FIG. 1 is a schematic structural view of a horizontal axis frame set for cold-formed steel production in the prior art.

FIG. 2 is a schematic structural view of a horizontal axis rack set for cold-formed steel production in the present application.

Fig. 3 is a schematic view of the connection between the lower horizontal shaft and the lower roll in fig. 2.

Fig. 4 is a schematic view, in cross section, of the structure of the inner connecting ring according to the present application.

Fig. 5 is a schematic structural view, in cross section, of a connection outer ring according to the present application.

Description of the element reference numerals

10 machine frame

101 machine base

102 frame arm

20 horizontal axis

21 upper horizontal axis

22 lower horizontal shaft

30 roller

31 upper roll

32 lower roll

40 hole type

50 expansion sleeve mechanism

51 connecting inner ring

511 first outer peripheral tapered surface

512 second peripheral taper

513 inner ring opening

52 connecting the outer ring

521 first inner tapered surface

522 second inner peripheral tapered surface

523 outer ring opening

53 first clamp ring

531 through hole

54 second clamp ring

541 screw hole

55 gap

56 tension bolt

60 bearing seat

70 Depression Assembly

71 drive motor

72 lead screw

80 speed reducer

90 universal joint transmission shaft

110 lock nut

120 flange

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

It should be understood that the drawings of the present application are only used to match the contents disclosed in the specification, so as to be known and read by those skilled in the art, and not to limit the practical limitations of the present invention, so that the present application does not have any technical significance, and any modification of the structure, change of the ratio relationship, or adjustment of the size should still fall within the scope of the present application without affecting the function and the achievable purpose of the present application. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle", and the like used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be considered as the scope of the present invention without substantial changes in the technical content.

The utility model provides a horizontal axis frame group of cold-formed steel production usefulness, as shown in FIG. 2, this horizontal axis frame group includes frame 10, rotationally installs in the horizontal axis 20 of frame 10 and installs in the roll 30 of horizontal axis 20, links to each other through the cover mechanism 50 that rises between horizontal axis 20 and the roll 30. For convenience of description, the axial direction of the horizontal axis 20 is defined as the left-right direction. The horizontal shaft 20 comprises an upper horizontal shaft 21 and a lower horizontal shaft 22 which are parallel, the upper horizontal shaft 21 is positioned at the upper side of the lower horizontal shaft 22, the roller 30 comprises an upper roller 31 arranged on the upper horizontal shaft 21 and a lower roller 32 arranged on the lower horizontal shaft 22, and thus, the upper horizontal shaft 21 and the upper roller 31 and the lower horizontal shaft 22 and the lower roller 32 are connected through the sleeve expanding mechanism 50; a pass 40 is formed between the upper roll 31 and the lower roll 32. In addition, two upper rolls 31 arranged in bilateral symmetry are respectively mounted on the upper horizontal shaft 21 through two sets of sleeve expansion mechanisms 50, and two lower rolls 32 arranged in bilateral symmetry are respectively mounted on the lower horizontal shaft 22 through two sets of sleeve expansion mechanisms 50. The structure of the expanding mechanism 50 will be described below by taking the horizontal shaft 22 and the lower roll 32 on the upper and left sides of the lower horizontal shaft 22 as an example.

Further, as shown in fig. 3, the expanding sleeve mechanism 50 includes a joint inner ring 51 fitted to the outer periphery of the lower horizontal shaft 22, a joint outer ring 52 fitted to the inner periphery of the lower roll 32, and a pressing member fitted between the joint inner ring 51 and the joint outer ring 52; as shown in fig. 4, the connecting inner ring 51 is provided with an inner ring opening 513 penetrating in the axial direction in the circumferential direction thereof; as shown in fig. 5, the connection outer ring 52 is provided with an outer ring opening 523 that axially penetrates therethrough in its circumferential direction; the pressing assembly acts on the joint inner ring 51 and the joint outer ring 52, and is capable of changing the gap between the joint inner ring 51 and the lower horizontal shaft 22 and changing the gap between the joint outer ring 52 and the lower roll 32. When the horizontal shaft frame set works, the pressing component in the expansion sleeve mechanism 50 is in a pressing state, namely the pressing component presses the connecting inner ring 51 and the connecting outer ring 52, so that the connecting inner ring 51 is in interference fit with the lower horizontal shaft 22, and the connecting outer ring 52 is in interference fit with the lower roller 32, and therefore sufficient friction force is generated, and the relative fixation between the lower horizontal shaft 22 and the lower roller 32 is realized; thus, the lower roll 32 is driven to rotate synchronously when the lower horizontal shaft 22 rotates. When the pass 40 needs to be changed, the pressing assembly in the expanding sleeve mechanism 50 is in a released state, that is, the pressing assembly does not press the inner connecting ring 51 and the outer connecting ring 52 any more, so that the gap between the inner connecting ring 51 and the lower horizontal shaft 22 is enlarged, that is, the inner connecting ring 51 is in clearance fit with the lower horizontal shaft 22, and at this time, the lower roll 32 together with the expanding sleeve mechanism 50 can move on the lower horizontal shaft 22 to adjust the position of the lower roll 32. After the adjustment is in place, the pressing assembly is in a pressing state, and the lower roller 32 is locked on the lower horizontal shaft 22 through the interference fit of the connecting inner ring 51 and the lower horizontal shaft 22 and the interference fit of the connecting outer ring 52 and the lower roller 32.

Therefore, the position of the upper roll 31 on the upper horizontal shaft 21 and the position of the lower roll 32 on the lower horizontal shaft 22 can be conveniently and quickly adjusted through the expanding sleeve mechanism 50, so that the pass 40 adaptive to the product specification can be conveniently and efficiently replaced, and compared with the prior art, the operation efficiency of the method is improved by at least 75%. Meanwhile, the horizontal shaft 20 does not need to be disassembled and assembled, so that the abrasion of parts is reduced, and the service life of the horizontal shaft rack set is prolonged. In addition, according to the present invention, torque is transmitted by friction, so that it is not necessary to provide a key groove on the horizontal shaft 20, and the strength of the horizontal shaft 20 can be improved, and at the same time, it is not necessary to provide positioning members such as a pad and a spacer.

Further, as shown in fig. 3, the pressing assembly includes a first pressing ring 53 and a second pressing ring 54 arranged side by side in the axial direction of the lower horizontal shaft 22, a gap 55 formed between the first pressing ring 53 and the second pressing ring 54 in the axial direction of the lower horizontal shaft 22, and a tension bolt 56 threadedly coupled to at least one of the first pressing ring 53 and the second pressing ring 54. In the view shown in fig. 3, the tension bolts 56 are inserted into the first clamp ring 53 and screwed only to the second clamp ring 54; therefore, the first clamp ring 53 has a through hole 531 formed therein for allowing the tension bolt 56 to pass therethrough, and the second clamp ring 54 has a threaded hole 541 formed therein for threadedly engaging with the tension bolt 56. The inner diameter of the first clamp ring 53 and the inner diameter of the second clamp ring 54 both increase gradually in the direction approaching the gap 55, and the outer diameter of the first clamp ring 53 and the outer diameter of the second clamp ring 54 both decrease gradually in the direction approaching the gap 55, so that both the inner peripheral surface and the outer peripheral surface of the first clamp ring 53 are conical surfaces, and both the inner peripheral surface and the outer peripheral surface of the second clamp ring 54 are conical surfaces. The inner connecting ring 51 is a double-cone inner ring, and the outer peripheral surface of the double-cone inner ring has a first outer peripheral tapered surface 511 that fits the inner peripheral tapered surface of the first clamp ring 53, and a second outer peripheral tapered surface 512 that fits the inner peripheral tapered surface of the second clamp ring 54. The connection outer ring 52 is a double-cone outer ring, and the inner peripheral surface of the double-cone outer ring has a first inner peripheral tapered surface 521 fitted to the outer peripheral tapered surface of the first clamp ring 53, and a second inner peripheral tapered surface 522 fitted to the outer peripheral tapered surface of the second clamp ring 54. Preferably, the tie bolts 56 are provided in plural numbers, evenly distributed along the circumferential direction of the first clamp ring 53 and the second clamp ring 54.

When the plurality of tightening bolts 56 are fastened, the pressing assembly is in a pressing state, the first pressing ring 53 and the second pressing ring 54 move in opposite directions, a gap 55 between the first pressing ring 53 and the second pressing ring 54 is smaller and smaller, and then the existence of the inner ring opening 513 on the inner connecting ring 51 and the outer ring opening 523 on the outer connecting ring 52 is combined, so that the inner diameter of the inner connecting ring 51 is reduced, the outer diameter of the outer connecting ring 52 is increased, the gap between the inner connecting ring 51 and the lower horizontal shaft 22 is smaller and smaller until the interference fit is achieved, the gap between the outer connecting ring 52 and the lower roller 32 is smaller and smaller until the interference fit is achieved, a larger tension force and a friction force are generated, and the lower roller 32 is stably fixed on the lower horizontal shaft 22 by the friction force; this friction allows the required transmission torque to be satisfied, while also allowing the force for axially sliding the lower roll 32 to be overcome. When the lower roll 32 needs to be moved, the plurality of fastened tightening bolts 56 are loosened, the first clamp ring 53 and the second clamp ring 54 move in opposite directions, the gap 55 between the first clamp ring and the second clamp ring becomes larger, the inner connecting ring 51 automatically springs open, the inner diameter becomes larger, and the inner connecting ring 51 and the lower horizontal shaft 22 are in clearance fit and have no friction force, and at this time, the lower roll 32 and the expansion sleeve mechanism 50 therein can be moved on the lower horizontal shaft 22. Preferably, the material of the connection inner ring 51 and the connection outer ring 52 is a high-strength elastic material.

Further, as shown in fig. 2, the frame 10 includes a frame base 101, and frame arms 102 which are symmetrically distributed and fixed to an upper end surface of the frame base 101; both left and right ends of the upper horizontal shaft 21 and both left and right ends of the lower horizontal shaft 22 are rotatably mounted to a frame arm 102 of the frame 10 via bearing housings 60 in which bearings are installed. When the pass 40 is changed, repeated disassembly and assembly of the upper horizontal shaft 21 and the lower horizontal shaft 22 are omitted, the disassembly and assembly of the bearing seat 60 and the bearing are omitted, abrasion of the bearing seat 60 and the bearing is greatly reduced, and the service life is prolonged. Further, lock nuts 110 that are in abutting engagement with the bearing blocks 60 are attached to both left and right ends of the upper horizontal shaft 21 and both left and right ends of the lower horizontal shaft 22, and the bearing blocks 60 are fixed to the upper horizontal shaft 21 and the lower horizontal shaft 22 by the lock nuts 110.

Further, as shown in fig. 2, the horizontal axis frame set further includes a press-down assembly 70, the chock 60 is slidably mounted on the frame 10 up and down, the press-down assembly 70 is connected to the chock 60 and drives the chock 60 to move up and down, thereby adjusting the height position of the horizontal axis 20, correspondingly adjusting the height position of the roll 30, adjusting the gap between the upper roll 31 and the lower roll 32, and adjusting the pass 40 from the other side. Alternatively, the adjustment of the pass 40 includes the adjustment of the left and right positions of the upper roll 31 and the lower roll 32, and the adjustment of the vertical position. In this embodiment, the depressing assemblies 70 are connected to the chocks 60 at both left and right ends of the upper horizontal shaft 21, and only the height positions of the upper horizontal shaft 21 and the upper roll 31 are adjusted. Specifically, as shown in fig. 2, the pressing assembly 70 includes a driving motor 71, a screw rod 72 driven by the driving motor 71 to rotate and extending up and down, and a slider engaged with the screw rod 72 and fixed to the bearing seat 60, the screw rod 72 is rotatably mounted on the frame 10, the driving motor 71 can directly drive the screw rod 72 to rotate or drive the screw rod 72 to rotate through a worm gear transmission mechanism, the slider is moved up and down by the engagement of the screw rod 72 and the slider, and the bearing seats 60 at the left and right ends of the upper horizontal shaft 21 are moved up and down together with the slider, thereby adjusting the height positions of the upper horizontal shaft 21 and the upper roll 31.

Further, as shown in fig. 1, the horizontal axis frame set further includes a speed reducer 80 and universal joint transmission shafts 90, the speed reducer 80 is a dual-axis output, each output shaft is fixedly connected with one universal joint transmission shaft 90 through a flange 120, the other end of one universal joint transmission shaft 90 is fixedly connected with the upper horizontal axis 21 through the flange 120, and the other end of the other universal joint transmission shaft 90 is fixedly connected with the lower horizontal axis 22 through the flange 120. The two output shafts of the speed reducer 80 rotate in opposite directions, the upper horizontal shaft 21 and the lower horizontal shaft 22 are driven to rotate in opposite directions through the two universal joint transmission shafts 90, so that the upper roller 31 and the lower roller 32 rotate in opposite directions, steel passes through the pass 40, and the upper roller 31 and the lower roller 32 drive the steel to move and roll bend the steel to deform.

To sum up, the utility model discloses various shortcomings in the prior art have effectively been overcome and high industry value has.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims (8)

1. A horizontal shaft rack group for producing cold-formed steel comprises a rack (10), a horizontal shaft (20) and a roller (30), wherein the horizontal shaft (20) is rotatably arranged on the rack (10), the roller (30) is arranged on the horizontal shaft (20), the horizontal shaft (20) comprises an upper horizontal shaft (21) and a lower horizontal shaft (22) which are parallel, the roller (30) comprises an upper roller (31) and a lower roller (32), the upper roller (31) is arranged on the upper horizontal shaft (21), the lower roller (32) is arranged on the lower horizontal shaft (22), and a pass (40) is formed between the upper roller (31) and the lower roller (32); the method is characterized in that: the horizontal shaft (20) is connected with the roller (30) through an expansion sleeve mechanism (50); the expansion sleeve mechanism (50) comprises a connecting inner ring (51) assembled on the outer periphery of a horizontal shaft (20), a connecting outer ring (52) assembled on the inner periphery of a roller (30) and a pressing assembly assembled between the connecting inner ring (51) and the connecting outer ring (52), wherein an inner ring opening (513) which is axially communicated is formed in the circumferential direction of the connecting inner ring (51), an outer ring opening (523) which is axially communicated is formed in the circumferential direction of the connecting outer ring (52), the pressing assembly acts on the connecting inner ring (51) and the connecting outer ring (52), so that the connecting inner ring (51) and the horizontal shaft (20) can be in clearance fit or interference fit, and the connecting outer ring (52) and the roller (30) can be in interference fit.

2. The horizontal axis rack set of claim 1, wherein: the compression assembly comprises a first compression ring (53) and a second compression ring (54) which are arranged side by side along the axial direction of a horizontal shaft (20), a gap (55) formed between the first compression ring (53) and the second compression ring (54), and a tension bolt (56) in threaded connection with at least one of the first compression ring (53) and the second compression ring (54), wherein the inner diameter of the first compression ring (53) and the inner diameter of the second compression ring (54) are gradually increased along the direction close to the gap (55), and the outer diameter of the first compression ring (53) and the outer diameter of the second compression ring (54) are gradually decreased along the direction close to the gap (55);

the connecting inner ring (51) is a double-cone inner ring, and the outer peripheral surface of the double-cone inner ring is provided with a first outer peripheral conical surface (511) matched with the inner peripheral conical surface of the first compression ring (53) and a second outer peripheral conical surface (512) matched with the inner peripheral conical surface of the second compression ring (54);

the connecting outer ring (52) is a double-cone outer ring, and the inner peripheral surface of the double-cone outer ring is provided with a first inner peripheral conical surface (521) matched with the outer peripheral conical surface of the first compression ring (53) and a second inner peripheral conical surface (522) matched with the outer peripheral conical surface of the second compression ring (54).

3. The horizontal axis rack set of claim 2, wherein: through holes (531) allowing the tension bolts (56) to pass through are formed in the first compression ring (53), and threaded holes (541) matched with the tension bolts (56) in a threaded mode are formed in the second compression ring (54).

4. A set of horizontal axis frames according to claim 2 or 3, characterized in that: the tension bolts (56) are uniformly distributed along the circumferential direction of the first compression ring (53) and the second compression ring (54).

5. The horizontal axis rack set of claim 1, wherein: both ends of the upper horizontal shaft (21) and both ends of the lower horizontal shaft (22) are rotatably arranged on the frame (10) through bearing seats (60) with bearings inside.

6. The horizontal axis rack set of claim 5, wherein: the device is characterized by further comprising a pressing component (70), the bearing seat (60) can be installed on the rack (10) in a vertically sliding mode, and the pressing component (70) is connected with the bearing seat (60) and drives the bearing seat (60) to move up and down.

7. The horizontal axis rack set of claim 6, wherein: the pressing assembly (70) comprises a driving motor (71), a screw rod (72) which is driven by the driving motor (71) to rotate and extends up and down, and a sliding block which is in threaded fit with the screw rod (72) and is fixed with the bearing seat (60), wherein the screw rod (72) is rotatably arranged on the rack (10).

8. The horizontal axis rack set of claim 1, wherein: the device is characterized by further comprising a speed reducer (80) and a universal joint transmission shaft (90), wherein one end of the universal joint transmission shaft (90) is fixedly connected with an output shaft of the speed reducer (80), and the other end of the universal joint transmission shaft is fixedly connected with a horizontal shaft (20).

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