CN221086736U - Frame roller connecting device - Google Patents

Abstract

The application discloses a frame roller connecting device which comprises a positioning main body, a connecting component, a buffer component and a taper sleeve, wherein the positioning main body comprises a containing cavity which is penetrated along a first direction, the connecting component penetrates through the containing cavity along the first direction, the connecting component comprises a connecting rod with a smooth outer surface and more than two fastening parts, the fastening parts are arranged on the outer surface of the connecting rod at intervals along the first direction, and the taper sleeve is arranged on at least one of a first side and a second side of the containing cavity and is coaxially connected with the connecting rod. The connecting device uses the smooth connecting rod of surface to run through the edger roll housing and the bearing seat, relies on the fastening part arranged on the connecting rod to be in interference fit with the abutting section mutually adjacent to the edger roll housing and the bearing seat, along the extending direction of the accommodating cavity, the connecting rod reduces a large number of threaded areas compared with the traditional screw rod, the dismantling work of the connecting rod is easier, and the easy dismounting of the frame roller connecting device is improved on the premise of ensuring the integral assembly strength of the connecting device.

Description

Frame roller connecting device

Technical Field

The application belongs to the technical field of rolling mills, and particularly relates to a frame roller connecting device.

Background

The vertical roller mill is mechanical equipment for processing raw materials into finished products by adopting a steel rolling process, and has the advantages of high rigidity, high strip steel quality, time and labor saving in roll changing. The vertical rolling mill generally comprises a transmission gear box, a frame, a roller assembly, a side pressing device, a track, a base, a fixed pulley and other parts, wherein the transmission gear box is fixed above the frame, the roller assembly is arranged in the frame below the transmission gear box and is provided with two roller shafts, horizontal lead screws penetrate through bearing seats at two ends of the roller shafts, wheels are arranged below lower bearing seats of the horizontal lead screws, and a side pressing system is fixed at one end of each lead screw. In the related art, the housing of the E vertical roller mill is thicker, and the thickness can reach 600mm; e frame roller bearing frame fixed mounting is on E edger mill housing, and the bolt hole link up the housing, and the bolt hole link up too thickly, along with edger mill's use, the rolled piece produces vibration in rolling process, and vibration load acts on the bearing frame for a long time, can cause the connection of bolt and bolt hole to produce plastic deformation, receives the superposition effect of producing steam in the rolling technology, and when changing the roller axle, the bolt dismantles the degree of difficulty greatly, changes the consuming time of roller axle longer.

Disclosure of utility model

The embodiment of the application provides a frame roller connecting device which can improve the dismounting and replacing efficiency of a roller shaft under various working conditions.

The embodiment of the application provides a frame roller connecting device, which comprises a positioning main body, a connecting component, at least one buffer component and at least one taper sleeve, wherein the positioning main body comprises a containing cavity which is penetrated and arranged along a first direction, the connecting component penetrates and arranged in the containing cavity along the first direction, the connecting component comprises a connecting rod with a smooth outer surface and more than two fastening parts, the fastening parts are arranged on the outer surface of the connecting rod at intervals along the first direction, the buffer component is sleeved on at least one of a first side and a second side of the connecting rod, the taper sleeve is arranged on at least one of the first side and the second side of the containing cavity and is coaxially connected with the connecting rod, the inner circumferential surface of the containing cavity is provided with a first cavity wall and a second cavity wall which are arranged at intervals along the first direction, the second cavity wall is suitable for being meshed and connected with the fastening parts of the connecting rod so that the connecting rod is in interference fit with the positioning main body, the connecting rod is suitable for being matched with the first cavity wall along the self circumference and is mutually matched with the first cavity wall in a long and narrow clamp mode, and the lubricant is suitable for containing.

In some embodiments, the connecting rod has a first micro-channel extending along the first direction and more than two second micro-channels extending out of the connecting rod and communicated with the first micro-channel, two ends of the first micro-channel are connected with detachable sealing plugs, and the second micro-channels are arranged corresponding to the first cavity wall and are spaced from the fastening part.

In some embodiments, the positioning body includes a vertical roller housing and a bearing housing fixed to the vertical roller housing, the receiving cavity extends through the vertical roller housing and the bearing housing, the second cavity wall is provided in an abutting section where the vertical roller housing and the bearing housing abut each other, and the first side of the receiving cavity.

In some embodiments, the first cavity wall is provided with a first thread segment, and the second cavity wall is provided with a second thread segment adapted to be engaged with and connected to the first thread segment.

In some embodiments, the first thread segment is configured to protrude from the inner circumferential surface of the first cavity wall along the second direction, so that a first hollow part and a second hollow part are formed in the accommodating cavity at intervals, and the second hollow parts are in one-to-one correspondence with the second cavity wall; the second direction is orthogonal to the first direction and points to the central axis of the accommodating cavity, and in the first hollow part, the connecting rod is suitable for enclosing the clamping cavity with the first cavity wall.

In some embodiments, the fastening portion further includes a stop collar fixedly abutting against the outer surface of the connecting rod, the stop collar is in a columnar arrangement, the second thread section is formed on the stop collar by turning, two ends of the stop collar are fixedly connected with tapered extension portions, and one ends of the extension portions, deviating from the stop collar, extend and shrink to the outer peripheral surface of the connecting rod.

In some embodiments, the outer surface of the connecting rod is provided with three fastening portions, and the fastening portions are respectively two first fastening portions and one second fastening portion, the two first fastening portions are arranged on the first side and the second side of the connecting rod, and the second fastening portions are arranged corresponding to the abutting sections.

In some embodiments, each of the first fastening portions includes a first branch section adapted to be received inside the receiving cavity and a second branch section extending out of the receiving cavity, the first branch section and the second branch section each being provided with the second threaded section; the buffer component is connected to the second branch section, and the taper sleeve is correspondingly arranged with the second side of the connecting rod and is connected to the corresponding first branch section and the second branch section.

In some embodiments, the second side of the accommodating cavity is formed with a conical internal spline part, the taper sleeve comprises a conical branch section and a positioning ring, the outer surface of the conical branch section is provided with an external spline part which can be in interference fit with the internal spline part, and the inner wall of the positioning ring is provided with a third thread section which is suitable for being meshed and connected with the second thread section; the taper sleeve restrains relative sliding between itself and the positioning body and the connecting rod through the external spline portion and the third thread section.

In some embodiments, the frame roller connecting device further comprises more than two nuts, the nuts are suitable for being meshed and connected with the second branch sections, at least one nut is in abutting fit with the positioning ring, the buffer assembly comprises flat washers and belleville springs which are arranged in a stacked mode, and one belleville spring corresponds to at least one flat washer.

According to the frame roller connecting device provided by the embodiment of the application, on one hand, the smooth-surface connecting rod penetrates through the vertical roller housing and the bearing seat, the fastening part arranged on the connecting rod is used for interference fit with the abutting section mutually adjacent to the vertical roller housing and the bearing seat, a large number of threaded areas are reduced by the connecting rod along the extending direction of the accommodating cavity compared with a traditional screw rod, and an operator can pour lubricant into the clamping cavity through the first micro-flow channel and the second micro-flow channel arranged in the connecting rod, so that the detachability between the fastening part and the second cavity wall is improved, and therefore, the connecting rod is easy to detach; on the other hand, in order to ensure that the connecting rod and the vertical roller housing can be stably and reliably connected, the first fastening parts arranged at two ends of the accommodating cavity are used for locking the vertical roller housing and the bearing seat, and the taper sleeves for increasing the connection strength and centripetal degree of the connecting rod and the vertical roller housing are further arranged at one end of the accommodating cavity, so that the easy dismounting of the frame roller connecting device is improved, and the integral assembly strength of the connecting device is ensured.

Drawings

Features, advantages, and technical effects of exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

FIG. 1 is a schematic illustration of the connection of a frame roll connection device to a roll shaft in an embodiment of the present application;

FIG. 2 is a schematic view of a frame roller connection device according to an embodiment of the present application;

FIG. 3 is a cross-sectional view of a frame roller connection of an embodiment of the present application;

fig. 4 is a schematic view of a partial detail of a frame roller connection device of an embodiment of the present application.

In the drawings, the drawings are not necessarily to scale.

Reference numerals:

A positioning body 1; a vertical roller housing 11; a bearing block 12;

The accommodating cavity 2; a first chamber wall 21; a second chamber wall 22; a first thread segment 221;

A connecting rod 3;

A fastening portion 4; a second thread segment 4a; a stop collar 4b; an extension 4c; a first fastening portion 41;

A second fastening portion 42; a first leg 411; a second leg 412;

A taper sleeve 5; a conical branch section 51; a positioning ring 52;

a nut 6; a flat washer 7; a belleville spring 8; a roll shaft 9;

A clamping cavity A; a first microchannel B; a second microchannel C;

a first direction X1; a second direction X2.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description of the application and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion. The terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a particular sequential or chronological order.

As shown in fig. 1 to 4, the embodiment of the application provides a frame roller connecting device, which can improve the easy dismounting of the frame roller connecting device on the premise of ensuring the integral assembly strength of the connecting device.

As shown in fig. 1 and 3, the frame roller connecting device comprises a positioning main body 1, a connecting component, at least one buffer component and at least one taper sleeve 5, wherein the positioning main body 1 comprises a containing cavity 2 penetrating along a first direction X1, and the connecting component penetrates through the containing cavity 2 along the first direction X1. It will be appreciated that by opening the receiving cavity 2, a fixed fulcrum can be provided for the positioning and mounting of the roll shaft 9, the connecting assembly being passed through the interior of the receiving cavity 2 and the roll shaft 9 and the positioning body 1 being mutually locked.

Specifically, the connecting assembly comprises a connecting rod 3 with a smooth outer surface and more than two fastening parts 4, the fastening parts 4 are arranged on the outer surface of the connecting rod 3 at intervals along a first direction X1, the buffer assembly is sleeved on at least one of a first side and a second side of the connecting rod 3, and the taper sleeve 5 is arranged on at least one of the first side and the second side of the accommodating cavity 2 and is coaxially connected with the connecting rod 2.

It can be understood that the outer surface of the connecting rod 3 can be mutually locked with the accommodating cavity 2 formed in the positioning main body 1 by arranging the fastening part 4, because the surface of the connecting rod 3 is smooth, when the roll shaft 9 is replaced and the connecting rod 3 is replaced, after the fixed locking parts at two ends of the connecting rod 3 are released, the fastening part 4 which is arranged on the surface of the connecting rod 3 and can be meshed with the second cavity wall 22 is different from the bolt arrangement, and the surface of the connecting rod 3 occupies smaller space, so that the connecting rod 3 is simple and convenient to disassemble. The taper sleeve 5 is arranged at one end of the connecting rod and one end of the accommodating cavity 2, so that the centripetal degree of the connecting rod 3 in the accommodating cavity 2 can be improved, and therefore the damage to the interconnection between the connecting rod 3 and the accommodating cavity 2 caused by vibration and water vapor in the operation process of the roll shaft 9 can be reduced, the deformation of partial areas of the connecting rod 3, which are mutually meshed with the accommodating cavity 2, caused by the position deviation of the connecting rod 3 is avoided, and the connecting rod 3 can be guaranteed to be detached smoothly.

From this, connecting rod 3 and the fastening portion 4 that the surface is smooth set up together constitute wears to establish and fix the coupling assembling on location main part 1, coupling assembling tip accessible sets up taper sleeve 5 and other locking parts and guarantees that it closely fixes roll shaft 9 and location main part 1 into whole, because coupling assembling exists the smooth portion that corresponds with the accommodation cavity 2 inside in a large scale for whole frame roller connecting device has higher quick detachable in the fastening degree of guaranteeing its connection, compares in traditional frame roller connecting device.

In addition, as shown in fig. 4, the inner peripheral surface of the accommodating cavity 2 has first and second cavity walls 21 and 22 arranged at intervals along the first direction X1, the second cavity wall 22 is adapted to be engaged with the fastening portion 4 of the link 3 so that the link 3 is interference-fitted with the positioning body 1, the link 3 is adapted to be fitted with the first cavity wall 21 in its own circumferential direction and formed with an elongated clip cavity a adapted to accommodate a lubricant.

It will be appreciated that the inner wall of the receiving cavity 2 is composed of first cavity walls 21 and second cavity walls 22 alternately arranged at intervals, the second cavity walls 22 being capable of being engaged with the fastening portion 4, the second cavity walls 22 having a small ratio inside the receiving cavity 2 when the connecting rod 3 passes through the interior of the receiving cavity 2, the first cavity walls 21 being smoothly disposed. In addition, as the connecting rod 3 is installed in the accommodating cavity 2 and connected into a whole, a long and narrow clamping cavity A is formed between the connecting rod 3 and the first cavity wall 21, the connecting area of the second cavity wall 22 and the fastening part 4 is mutually meshed and is adjacently arranged with the clamping cavity A,

Thus, both the mounting operation and the dismounting operation of the connecting rod 3 can be completed quickly; by adding the lubricant to the above-described clip cavity a, the lubricant can be made to sufficiently infiltrate the connecting region where the second cavity wall 22 and the fastening portion 4 are engaged with each other, and the detachability between the second cavity wall 22 and the fastening portion 4 can be improved.

In some embodiments, as shown in fig. 4, a first micro-channel B extending along a first direction X1 and more than two second micro-channels C extending out of the connecting rod 3 and communicating with the first micro-channel B extend through the interior of the connecting rod 3, two ends of the first micro-channel B are connected with detachable sealing plugs, and the second micro-channels C are disposed corresponding to the first cavity wall 21 and are spaced from the fastening portion 4.

It can be understood that by opening the first micro flow channel B and the second micro flow channel C inside the connecting rod 3, and the second micro flow channel C is mutually communicated with the clamping cavity a corresponding to the first cavity wall 21, an operator can add a lubricant from the first micro flow channel B to the clamping cavity a to infiltrate the connecting area where the second cavity wall 22 and the fastening portion 4 are mutually meshed; in addition, through being connected with detachable sealing plug at first microchannel B both ends, can be outside adding the lubricant, seal first microchannel B from this, can prevent that the steam that the frame roller operation in-process produced from invading accommodation cavity 2, avoid second chamber wall 22 and the mutual engaged connection region of fastening portion 4 from taking place corrosion.

In some embodiments, as shown in fig. 1, the positioning body 1 includes a vertical roller housing 11 and a bearing housing 12 fixed to the vertical roller housing, the accommodating cavity 2 penetrates the vertical roller housing 11 and the bearing housing 12, and the second cavity wall 22 is provided at an abutting section where the vertical roller housing 11 and the bearing housing 12 abut each other, and at a first side of the accommodating cavity 2.

It can be understood that the roller shaft 9 is mounted on the bearing seat 12, the vertical roller housing 11 and the bearing seat 12 are arranged in a stacked manner, the interior of the vertical roller housing 11 and the bearing seat 12 are provided with the accommodating cavity 2, and a second cavity wall 22 is formed in the accommodating cavity 2 in a machining mode in a region corresponding to the mutually adjacent positions of the vertical roller housing 11 and the bearing seat 12. Thereby, by the mutual engagement of the second cavity wall 22 and the fastening part on the connecting rod 3, the stability of the connection between the vertical roll housing 11 and the bearing seat 12 can be improved, thereby ensuring the connection fastening between the roll shaft 9, the connecting rod 3 and the positioning main body 1.

In some embodiments, as shown in fig. 4, the first cavity wall 21 is provided with a smooth surface, the second cavity wall 22 is provided with a first thread section 221, the fastening portion 4 includes a second thread section 4a adapted to be engaged with and connected to the first thread section 221, the first thread section 221 is configured to protrude from the inner peripheral surface of the first cavity wall 21 along the second direction X2, so that a first hollow portion and a second hollow portion are formed in the accommodating cavity 2 at intervals, and the second hollow portions are in one-to-one correspondence with the second cavity wall 22; the second direction X2 is orthogonal to the first direction X1 and directed towards the central axis of the receiving cavity 2, in which first hollow the connecting rod 3 is adapted to enclose a clamping cavity a with the first cavity wall 21.

It will be appreciated that the surface of the area of the connecting rod 3 in the first hollow portion is smooth, the surface of the area of the connecting rod 3 in the second hollow portion is provided with the fastening portion 4, the surface of the first cavity wall 21 is smooth, and the other area surfaces of the connecting rod 3 except the fastening portion are also smooth, so that the inner wall of the clamping cavity A formed between the connecting rod 3 and the first cavity wall 21 is smooth, and the lubricant can smoothly slide along the inner wall of the clamping cavity A when the lubricant is added into the clamping cavity A.

Thus, the disassembly procedure of the frame roller connecting device is simpler. In addition, by providing the second screw thread segment 4a engaged with and connected to the first screw thread segment 221 on the fastening portion 4, the fastening property of the connection between the link 3 and the accommodating cavity 2 can be ensured.

In some embodiments, as shown in fig. 4, the fastening portion 4 further includes a stop collar 4b fixedly abutting against the outer surface of the connecting rod 3, the stop collar 4b is in a columnar shape, the second thread section 4a is formed on the stop collar 4b by turning, two ends of the stop collar 4b are fixedly connected with tapered extension portions 4c, and one end of the extension portion 4c, deviating from the stop collar 4b, extends and contracts to the outer peripheral surface of the connecting rod 3.

It will be appreciated that the fastening portion 4 includes a cylindrical stop collar 4b fixed on the surface of the connecting rod 3, and two ends of the stop collar 4b are connected with extension portions 4c, the inner diameter of the extension portions 4c gradually decreases along the direction away from the stop collar 4b until the inner diameter is the same as that of the connecting rod 3, and the second threaded section 4a capable of being engaged with the first threaded section 221 is formed by turning the stop collar 4 b.

Therefore, an attached workpiece is provided for machining the second thread section 4a by arranging the limiting ring 4b, the second thread section 4a is arranged independently of the connecting rod 3 with a smooth surface, the fastening part 4 and the second thread section 4a on the fastening part 4 are arranged independently relative to the connecting rod 3, the connecting rod 3 is a cylinder with a uniform cross section, the structural surface of the connecting rod 3 does not need to be subjected to turning machining of the second thread section 4a, and therefore the connecting rod 3 has stable strength and rigidity.

In some embodiments, as shown in fig. 3, three fastening portions 4 are disposed on the outer surface of the connecting rod 3, and two first fastening portions 41 and one second fastening portion 42 are respectively disposed on the first side and the second side of the connecting rod 3, where the two first fastening portions 41 are disposed corresponding to the abutting sections. Each first fastening portion 41 comprises a first branch section 411 suitable for being accommodated in the accommodating cavity 2 and a second branch section 412 extending out of the accommodating cavity 2, and each of the first branch section 411 and the second branch section 412 is provided with a second threaded section 4a; the buffer assembly is connected to the second branch section 412, and the cone sleeve 5 is disposed corresponding to the second side of the connecting rod 3 and connected to the corresponding first branch section 411 and the second branch section 412.

It will be appreciated that, when the connecting rod 3 is mounted inside the accommodating cavity 2, the second fastening portions 42 correspond to the abutting sections of the vertical roller housing 11 and the bearing housing 12, two first fastening portions 41 are respectively provided at two ends of the connecting rod 3, in the first fastening portions 41, the first branch 411 accommodated inside the accommodating cavity 2 is used for being engaged with and connected to the second cavity wall 22, and the second branch 412 extending out of the accommodating cavity 2 is used for connecting fastening members outside the accommodating cavity 2 to strengthen the connection strength and rigidity of the connecting rod 3 with the vertical roller housing 11 and the bearing housing 12.

From this, carry out threaded engagement through two first fastening portion 41 and a second fastening portion 42 that set up between connecting rod 3 and the edger roll housing 11 and the bearing frame 12, and second branch 412 stretches out edger roll housing 11 and the setting of bearing frame 12, can also connect other fastening member on the second branch 412, and fastening member can be taper sleeve 5 to guarantee that connecting rod 3 can carry out effective connection with edger roll housing 11 and bearing frame 12.

In some embodiments, as shown in fig. 3, a conical internal spline portion is formed on the second side of the accommodating cavity 2, the taper sleeve 5 comprises a conical branch section 51 and a positioning ring 52, an external spline portion capable of being in interference fit with the internal spline portion is arranged on the outer surface of the conical branch section 51, and a third thread section suitable for being in meshed connection with the second thread section 4a is arranged on the inner wall of the positioning ring 52; the cone sleeve 5 constrains itself relative sliding between the positioning body 1 and the connecting rod 3 by means of the external spline portion and the third thread segments.

It will be appreciated that when the connecting rod 3 is assembled to the receiving cavity 2, the tapered leg 51 and the retaining ring 52 forming the taper sleeve 5 are divided into an inner portion and an outer portion of the receiving cavity 2, the tapered leg 51 is engaged with the inner spline portion formed on the second side of the receiving cavity 2, and the retaining ring 52 is engaged with the second threaded portion 4a of the connecting rod 3.

Therefore, the taper sleeve 5 is mutually locked with the vertical roller housing 11 and the connecting rod 3, the strength and centripetal degree of combined assembly between the end part of the accommodating cavity 2 in the vertical roller housing 11 and the connecting rod 3 are improved, the taper sleeve 5 can also prevent water vapor generated in the running process of the stand roller from invading the accommodating cavity 2, and the corrosion of the connecting area where the second cavity wall 22 and the fastening part 4 are mutually meshed is avoided.

In some embodiments, as shown in fig. 2 and 3, the frame roller connection device further includes more than two nuts 6, the nuts 6 being adapted for engagement with the second leg 412, at least one nut 6 abutting against the retaining ring 52, and the buffer assembly includes flat washers 7 and belleville springs 8 in a stacked arrangement, one belleville spring 8 corresponding to at least one flat washer 7.

It will be appreciated that the two ends of the connecting rod 3 extending out of the accommodating cavity 2 are respectively locked by using nuts 6, wherein, one side of the connecting rod 3 is also provided with a flat washer 7 and a belleville spring 8 to improve the connection strength of the nuts 6, and therefore, the whole frame roller connecting device has higher assembly strength.

The frame roller connecting device provided by the application can improve the easy dismounting of the frame roller connecting device on the premise of ensuring the integral assembly strength of the connecting device.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "attached" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the embodiments of the present application, the same reference numerals denote the same components, and detailed descriptions of the same components are omitted in different embodiments for the sake of brevity. It should be understood that the thickness, length, width, etc. dimensions of the various components in the embodiments of the application shown in the drawings, as well as the overall thickness, length, width, etc. dimensions of the integrated device, are merely illustrative and should not be construed as limiting the application in any way.

The term "plurality" as used herein means that two or more include two.

While the application has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the application, and in particular, the technical features set forth in the various embodiments may be combined in any manner so long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims (10)

1. A frame roller connection device, comprising:

The positioning main body (1) comprises a containing cavity (2) penetrating along a first direction;

The connecting assembly penetrates through the accommodating cavity (2) along a first direction and comprises a connecting rod (3) with a smooth outer surface and more than two fastening parts (4), and the fastening parts (4) are arranged on the outer surface of the connecting rod (3) at intervals along the first direction;

At least one buffer component sleeved on at least one of the first side and the second side of the connecting rod (3); and

The taper sleeve (5) is arranged on at least one of the first side and the second side of the accommodating cavity (2) and is coaxially connected with the connecting rod (2);

The inner peripheral surface of the accommodating cavity (2) is provided with a first cavity wall (21) and a second cavity wall (22) which are arranged at intervals along a first direction, the second cavity wall (22) is suitable for being meshed and connected with the fastening part (4) of the connecting rod (3), so that the connecting rod (3) is in interference fit with the positioning main body (1), the connecting rod (3) is suitable for being mutually matched with the first cavity wall (21) along the circumferential direction of the connecting rod, and an elongated clamping cavity (A) is formed, and the clamping cavity (A) is suitable for accommodating lubricant.

2. The frame roller connecting device according to claim 1, wherein a first micro flow channel (B) extending along the first direction and more than two second micro flow channels (C) extend out of the connecting rod (3) and are communicated with the first micro flow channel (B), two ends of the first micro flow channel (B) are connected with detachable sealing plugs, and the second micro flow channels (C) are arranged corresponding to the first cavity wall (21) and are arranged at intervals with the fastening portion (4).

3. The frame roller connection device according to claim 1, characterized in that the positioning body (1) comprises a vertical roller housing (11) and a bearing housing (12) fixed to the vertical roller housing (11), the receiving cavity (2) penetrates the vertical roller housing (11) and the bearing housing (12), the second cavity wall (22) is provided at an abutting section where the vertical roller housing (11) and the bearing housing (12) abut each other, and the first side of the receiving cavity (2).

4. A frame roller connection according to claim 3, characterized in that the first chamber wall (21) is provided with a first thread section (221) and the second chamber wall (22) is provided with a second thread section (4 a) adapted to be in engagement with the first thread section (221).

5. The frame roller connection device according to claim 4, characterized in that the first thread section (221) is configured such that it protrudes in a second direction from the inner circumferential surface of the first cavity wall (21), so that a first hollow portion and a second hollow portion are formed in the accommodating cavity (2) at intervals, the second hollow portion being in one-to-one correspondence with the second cavity wall (22);

The second direction is orthogonal to the first direction and points towards the central axis of the receiving cavity (2), in the first hollow portion the connecting rod (3) is adapted to enclose the clamping cavity (a) with the first cavity wall (21).

6. The frame roller connecting device according to claim 4, wherein the fastening portion (4) further comprises a limiting ring (4 b) fixedly abutting against the outer surface of the connecting rod (3), the limiting ring (4 b) is in a columnar arrangement, the second threaded section (4 a) is formed in the limiting ring (4 b) through turning, two ends of the limiting ring (4 b) are fixedly connected with conical extension portions (4 c), and one end of the extension portion (4 c) deviating from the limiting ring (4 b) extends and contracts to the outer peripheral surface of the connecting rod (3).

7. The frame roller connecting device according to claim 4, characterized in that the outer surface of the connecting rod (3) is provided with three fastening portions (4), two first fastening portions (41) and one second fastening portion (42), respectively, the two first fastening portions (41) being provided on the first side and the second side of the connecting rod (3), respectively, and the second fastening portion (42) being provided corresponding to the interference section.

8. The frame roller connection device according to claim 7, characterized in that each of said first fastening portions (41) comprises a first branch section (411) adapted to be housed inside said housing cavity (2) and a second branch section (412) extending out of said housing cavity (2), said first branch section (411) and said second branch section (412) being each provided with said second threaded section (4 a);

The buffer component is connected to the second branch section (412), and the taper sleeve (5) is arranged corresponding to the second side of the connecting rod (3) and is connected to the corresponding first branch section (411) and the second branch section (412).

9. The frame roller connection device according to claim 8, characterized in that the second side of the receiving cavity (2) is formed with a conical internal spline portion, the cone sleeve (5) comprises a conical branch section (51) and a positioning ring (52), the outer surface of the conical branch section (51) is provided with an external spline portion capable of being in interference fit with the internal spline portion, and the inner wall of the positioning ring (52) is provided with a third thread section suitable for being in meshed connection with the second thread section (4 a);

The taper sleeve (5) restrains relative sliding between the taper sleeve and the positioning main body (1) and the connecting rod (3) through the external spline part and the third thread section.

10. The frame roller connection according to claim 9, further comprising two or more nuts (6), said nuts (6) being adapted for engagement with said second leg (412), at least one of said nuts (6) abutting against said retaining ring (52), said cushioning assembly comprising a flat washer (7) and a belleville spring (8) arranged in a stack, one of said belleville springs (8) corresponding to at least one of said flat washers (7).