Driving and connecting structure for carrier roller of sampling shear

Abstract

The utility model discloses a sampling shear carrier roller driving connection structure which comprises a carrier roller shaft, a check ring, a bearing, a bearing seat, an external connection disc, a butt joint shaft disc, a carrier roller driving assembly and a shaft disc fastening piece, the check ring and the bearing are axially installed on the carrier roller shaft, a tooth groove is formed in the end portion of the carrier roller shaft, and the bearing seat is arranged on the bearing seat. The tooth grooves are formed by sinking from the end face of the carrier roller in the axis direction, transmission teeth matched with the tooth grooves in shape are axially arranged at one end of the butt joint shaft disc in a protruding mode, the transmission teeth are embedded in the tooth grooves, and the shaft disc fastening piece penetrates through the butt joint shaft disc and the carrier roller shaft in the axis direction to fix the butt joint shaft disc and the carrier roller shaft. The end, away from the carrier roller shaft, of the butt joint shaft disc is axially inserted into the carrier roller driving assembly and is in transmission connection with the carrier roller driving assembly. According to the sampling shear carrier roller driving connection structure, gaps in the transmission process are reduced in the matching process of the tooth grooves and the transmission teeth, the close fit degree between parts is improved, abrasion is reduced, the service life of the carrier roller is prolonged, and the maintenance rate is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of steel production, in particular to a sampling shear roller driving connection structure. Background Art

[0002] The sampling shear roller is a matching component of the steel coil sampling shearing machine. The steel coil is lifted up on the sampling shear roller, and its unwinding and rewinding are realized by the forward and reverse rotation of the roller.

[0003] The connection between the existing roller drive assembly and the roller adopts a combination of keys and bolts. Frequent forward and reverse rotation brings more stringent requirements to the connection parts. The gap between the parts installed in the radial direction of the roller and the roller drive assembly will gradually increase during the forward and reverse operation, eventually causing the bolts to break and fail. The failure of the roller connection leads to a significant increase in the maintenance frequency of the sampling shear, seriously affecting the production rhythm and increasing the maintenance intensity.

[0004] In view of this, it is necessary to propose a sampling shear roller drive connection structure to solve the above-mentioned defects. Utility Model Content

[0005] The main purpose of the utility model is to provide a sampling shear roller drive connection structure, aiming to solve the problem that the connection between the existing roller drive and the roller adopts a key plus bolt method, which makes it easy to break and thus causes the roller failure.

[0006] To achieve the above-mentioned purpose, the utility model provides a sampling shear roller drive connection structure, including a roller shaft, a retaining ring, a bearing, a bearing seat, an external disk, a docking shaft disk, a roller drive assembly and a shaft disk fastener, the retaining ring and the bearing are axially installed on the roller shaft, the bearing seat is axially sleeved outside the bearing and the retaining ring, the external disk axially abuts against the ends of the bearing and the bearing seat, the end of the roller shaft is provided with a tooth groove, the tooth groove is recessed from the end face of the roller along the axial direction, one end of the docking shaft disk is axially protruded with a transmission tooth matching the shape of the tooth groove, the transmission tooth is embedded in the tooth groove, the shaft disk fastener passes through the docking shaft disk and the roller shaft along the axial direction to fix the two, and the end of the docking shaft disk away from the roller shaft is axially inserted into the roller drive assembly and is transmission-connected to the roller drive assembly.

[0007] Preferably, the transmission teeth are conical teeth, and the tooth grooves are conical grooves.

[0008] Preferably, the tooth grooves are multiple and evenly distributed circumferentially on the roller shaft, and the number of the conical teeth is equal to the number of the tooth grooves and evenly distributed circumferentially on the docking shaft disc.

[0009] Preferably, there are three tooth grooves.

[0010] Preferably, the docking shaft-disc comprises an integrally formed shaft body and a disc body, the transmission teeth are formed on the disc body, and the shaft body is axially inserted into the roller drive assembly.

[0011] Preferably, the shaft disc fastener is a bolt set.

[0012] Preferably, the bearing seat is a split bearing seat, the inner side of the bearing seat is machined with a groove, the end of the external disc is circumferentially formed with a retaining ring, the retaining ring is embedded in the groove, and the positioning assembly radially passes through the bearing seat and the external disc to fix the two.

[0013] Preferably, the positioning assembly is a positioning pin group.

[0014] Preferably, the roller shaft and the roller are an integrated structure.

[0015] Compared with the prior art, the sampling shear roller drive connection structure provided by the utility model has the following beneficial effects:

[0016] The sampling shear roller driving connection structure provided by the utility model is connected by meshing the transmission teeth and the tooth grooves, and then the roller shaft and the docking shaft disc are connected and fixed by the shaft disc fastener, so that a good transmission connection is formed between the docking shaft disc and the roller shaft, and the docking shaft disc rotates and drives the roller shaft to rotate under the drive of the roller driving assembly connected thereto, and the tooth grooves and the transmission teeth maintain contact during the transmission process, so that the gap in the transmission process is reduced in the cooperation between the tooth grooves and the transmission teeth, thereby improving the close fit between the components, reducing wear, and further increasing the service life of the roller and reducing the maintenance rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of the structure of the sampling shear roller drive connection structure provided by the utility model;

[0019] Figure 2 for Figure 1 An exploded view of the sampling shear roller drive connection structure shown;

[0020] Figure 3 for Figure 1A cross-sectional view of the sampling shear roller drive connection structure is shown.

[0021] The purpose, features and advantages of the present invention will be further described in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0022] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0025] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0026] Please refer to Figures 1 to 3 The utility model provides a sampling shear roller drive connection structure. The sampling shear roller drive connection structure includes a roller shaft 1, a retaining ring 2, a bearing 3, a bearing seat 4, an external disc 5, a docking shaft disc 6, a roller drive assembly 7 and a shaft disc fastener 8. Among them, the steel coil 100 is supported on two rollers 200, and the roller shaft 1 and the roller are an integrated structure with high structural strength.

[0027] The retaining ring 2 is axially installed on the roller shaft 1, the bearing 3 is axially installed on the journal of the roller shaft 1, the bearing seat 4 is axially sleeved outside the bearing 3 and the retaining ring 2, the external plate 5 axially abuts against the ends of the bearing 3 and the bearing seat 4, and a tooth groove 11 is opened at the end of the roller shaft 1, and the tooth groove 11 is formed by being recessed from the end face of the roller shaft 1 along the axial direction. One end of the docking shaft disc 6 axially protrudes with a transmission tooth 61 that is adapted to the shape of the tooth groove 11, and the transmission tooth 61 is embedded in the tooth groove 11 to make the two mesh together, and the shaft disc fastener 8 passes through the docking shaft disc 6 and the roller shaft 1 along the axial direction to fix the two, and the end of the docking shaft disc 6 away from the roller shaft 1 is axially inserted into the roller drive assembly 7 and is transmission-connected to the roller drive assembly 7. Therefore, after the transmission teeth 61 and the tooth grooves 11 are meshed and connected, the roller shaft 1 and the docking shaft disc 6 are connected and fixed by the shaft disc fastener 8, so that a good transmission connection is formed between the docking shaft disc 6 and the roller shaft 1, and the docking shaft disc 6 rotates and drives the roller shaft 1 to rotate under the drive of the roller drive assembly 7 connected thereto, and the tooth grooves 11 and the transmission teeth 61 maintain contact during the transmission process, so that the gap in the transmission process is eliminated in the cooperation between the tooth grooves 11 and the transmission teeth 61, thereby improving the close fit between the components, reducing wear, and thereby increasing the service life of the roller and reducing the maintenance rate.

[0028] Specifically, the transmission tooth 61 is a conical tooth, and the tooth groove 11 is a conical groove. In other words, the tooth side of the transmission tooth 61 forms a conical surface, and the groove surface of the tooth groove 11 is also a conical surface, so that during the transmission process of the two, the gap can be reduced and the fit of the parts can be improved.

[0029] Specifically, the tooth grooves 11 are multiple and evenly distributed circumferentially on the roller shaft 1, and the number of the conical teeth is equal to the number of the tooth grooves 11, and are evenly distributed circumferentially on the docking shaft disc 6. Preferably, there are three tooth grooves 11. Of course, in other embodiments, the number of the tooth grooves 11 and the transmission teeth 61 can also be an even number of four or more. The number can be set according to the diameter of the roller shaft 1.

[0030] Specifically, the docking shaft disc 6 includes an integrally formed shaft body 63 and a disc body 65, the transmission gear 61 is formed on the disc body 65, the shaft body 63 is axially inserted into the roller drive assembly 7 and is transmission-connected with the roller drive assembly 7, the roller drive assembly 7 drives the docking shaft disc 6 to rotate, and the docking shaft disc 6 drives the roller shaft 1 to rotate, thereby rotating the roller. It can be understood that the integrally formed docking shaft disc 6 has higher strength.

[0031] Preferably, the shaft disc fastener 8 is a bolt group. Threaded holes are added to the ends of the docking shaft disc 6 and the roller shaft 1, and bolts pass through the disc body 65 and the roller shaft 1 from the direction of the docking shaft disc 6 to connect the two.

[0032] Wherein, the bearing seat 4 is a split bearing seat, such as Figure 3 As shown, the bearing seat 4 is an upper and lower split bearing seat, the inner side of the bearing seat 4 is formed with a groove 41, the end of the external plate 5 is circumferentially formed with a retaining ring 51, the retaining ring 51 is embedded in the groove 41, and the positioning assembly 9 radially passes through the bearing seat 4 and the external plate 5 to fix the two.

[0033] In detail, the positioning assembly 9 is a positioning pin group.

[0034] Specifically, the roller driving assembly 7 includes a speed reducer and a hydraulic motor in transmission connection, and the speed reducer is connected to the external disc 5 .

[0035] The assembly operation of the sampling shear roller drive connection structure is as follows: install the retaining ring 2 and the bearing 3 to the corresponding positions of the roller shaft 1 in sequence, and then press the outer ring of the bearing 3 with one end of the external plate 5 with the groove, and radially install the split bearing seat 4 on the outer periphery of the above-mentioned parts, install the positioning screws at the groove in place, tighten the bearing seat 4 cover, and then install the docking shaft plate 6 on the connecting end of the roller shaft 1, and tighten the transmission teeth 61 and the tooth grooves 11 with the bolt group after they are meshed to achieve a tight connection effect, and then install the axial end of the reducer at the end of the docking shaft plate 6, and finally install the hydraulic motor and connect it to the reducer.

[0036] The sampling shear roller driving connection structure provided by the utility model is connected by meshing the transmission tooth 61 and the tooth groove 11, and then the roller shaft 1 and the docking shaft disc 6 are connected and fixed by the shaft disc fastener 8, so that a good transmission connection is formed between the docking shaft disc 6 and the roller shaft 1, and the docking shaft disc 6 rotates and drives the roller shaft to rotate under the drive of the roller driving assembly 7 connected thereto, and the tooth groove 11 and the transmission tooth 61 maintain contact during the transmission process, so that the gap in the transmission process is eliminated in the cooperation between the tooth groove 11 and the transmission tooth 61, thereby improving the close fit between the components, reducing wear, and further increasing the service life of the roller, reducing the maintenance rate, and solving the problem in the prior art that the connection structure is prone to breakage and failure due to the large clearance between the components.

[0037] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A sampling shear roller drive connection structure, characterized in that: The invention comprises a roller shaft, a retaining ring, a bearing, a bearing seat, an external disc, a connecting shaft disc, a roller drive assembly and a shaft disc fastener, wherein the retaining ring and the bearing are axially mounted on the roller shaft, the bearing seat is axially sleeved outside the bearing and the retaining ring, the external disc axially abuts against the ends of the bearing and the bearing seat, a tooth groove is provided at the end of the roller shaft, the tooth groove is recessed along the axial direction from the end face of the roller, one end of the connecting shaft disc is axially protruded with a transmission tooth matching the shape of the tooth groove, the transmission tooth is embedded in the tooth groove, the shaft disc fastener passes through the connecting shaft disc and the roller shaft along the axial direction to fix the two, and the end of the connecting shaft disc away from the roller shaft is axially inserted into the roller drive assembly and is transmission-connected to the roller drive assembly.

2. The sampling shear roller drive connection structure according to claim 1 is characterized in that: The transmission teeth are conical teeth, and the tooth grooves are conical grooves.

3. The sampling shear roller drive connection structure according to claim 1 is characterized in that: There are multiple tooth grooves that are evenly distributed circumferentially on the roller shaft. The number of the transmission teeth is equal to the number of the tooth grooves, and they are evenly distributed circumferentially on the docking shaft disc.

4. The sampling shear roller drive connection structure according to claim 1 is characterized in that: The number of the tooth grooves is three.

5. The sampling shear roller drive connection structure according to claim 1 is characterized in that: The docking shaft disc comprises an integrally formed shaft body and a disc body, the transmission teeth are formed on the disc body, and the shaft body is axially inserted into the roller drive assembly.

6. The sampling shear roller drive connection structure according to claim 1, characterized in that: The shaft disc fastener is a bolt group.

7. The sampling shear roller drive connection structure according to claim 1 is characterized in that: The bearing seat is a split bearing seat, the inner side of the bearing seat is machined with a groove, the end of the external disc is circumferentially formed with a retaining ring, the retaining ring is embedded in the groove, and the positioning assembly radially passes through the bearing seat and the external disc to fix the two.

8. The sampling shear roller drive connection structure according to claim 7 is characterized in that: The positioning component is a positioning pin group.

9. The sampling shear roller drive connection structure according to claim 1, characterized in that: The roller shaft and the roller are an integrated structure.

Images