Finishing mill connecting shaft holding mechanism and device
By setting oil holes in the coupling shaft clamping device to reduce friction, the problem of the proximity switch not detecting position signals is solved, and the efficiency and positioning accuracy of the rolling production line are improved.
Patent Information
- Application Number
- CN202420015954.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-04
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-01-04
AI Technical Summary
In hot-rolled strip production lines, the proximity switch of the coupling shaft clamping device often fails to detect the position signal, resulting in interruption of the fully automatic roller changing process and degradation of production efficiency.
A finishing mill joint clamping mechanism is designed, including a housing, telescopic member, abutment head and guide sleeve. Oil holes are opened on the housing to connect the gap between the guide sleeve and telescopic member, reducing friction and ensuring Detection of induction part position signals improves positioning accuracy and production efficiency.
Effectively reduce wear between the clamping mechanism and the guide sleeve, ensure that the proximity switch can smoothly detect the position signal of the induction piece, improve the positioning accuracy of the drum-shaped tooth shaft head, realize the automatic replacement of the work roller of the finishing mill, and improve the Production efficiency of rolling production lines.
Smart Images
Figure CN222306871U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of rolling, and in particular relates to a shaft clamping mechanism and device for a finishing rolling mill. Background Art
[0002] On the hot strip production line, as rolling continues, the working rolls are constantly worn and need to be replaced. With the increase in the speed and automation of hot rolling mills, the number of working roll replacements is becoming increasingly frequent. In actual production, the working rolls need to be replaced 8-10 times a day.
[0003] When the working roll is replaced, a shaft clamping device is required. The shaft clamping device is set on the drum gear transmission shaft. During the replacement process, the working roll flat head and the drum gear transmission shaft head are required to be quickly plugged in and out, and after the working roll flat head is pulled out, the drum gear transmission shaft head can be accurately kept in the original position. Because the installation gap between the working roll flat head and the drum gear transmission shaft head is very small, the shaft clamping device has high requirements for the positioning accuracy of the drum gear transmission shaft head, and the position accuracy of the drum gear transmission shaft head also needs to be maintained after the roll is withdrawn.
[0004] The shaft-jointing clamping device is provided with a sensing member and a plurality of proximity switches (position switches). During the operation of the shaft-jointing clamping device, the sensing member moves along with the movement of the abutment head of the shaft-jointing clamping device and approaches the plurality of proximity switches respectively, so that the proximity switches detect the movement state of the shaft-jointing clamping device. However, in the related art, as the shaft-jointing clamping device is used for a longer time, the proximity switch often fails to detect the position signal of the sensing member, resulting in signal loss. The position signal loss will cause the automatic roll changing process to be interrupted, and the operator can only switch from automatic to manual roll changing, and manual roll changing will cause a waste of time and a decrease in production efficiency. Utility Model Content
[0005] The present application aims to at least to some extent solve the technical problem that the proximity switch of the shaft-jointing clamping device in the related art often fails to detect the position signal. To this end, the present application provides a shaft-jointing clamping mechanism and device for a finishing mill.
[0006] In the first aspect, an embodiment of the present application provides a finishing mill shaft clamping mechanism for clamping the drum-shaped gear transmission shaft of the finishing mill, comprising: a shell, a telescopic member, a butt joint and a guide sleeve, the telescopic member is installed on the shell and can move telescopically, the butt joint is installed on the telescopic member, and is used to clamp the drum-shaped gear transmission shaft, the guide sleeve is installed in the shell, one side of the telescopic member is located in the guide sleeve and is slidably connected to the guide sleeve along the telescopic direction of the telescopic member; a sensing member and at least two proximity switches, the sensing member is arranged on the telescopic member or the butt joint, a plurality of the proximity switches are arranged on the shell, arranged in sequence along the telescopic direction of the telescopic member and located on the movement path of the sensing member, so as to detect the position of the telescopic member relative to the shell; an oil hole is opened on the shell, and the oil hole connects the gap between the guide sleeve and the telescopic member.
[0007] In some embodiments, a limiting groove is opened on one side of the telescopic member located in the guide sleeve; the shell includes a shell body and a limiting member, the limiting member is installed on the shell body and passes through the shell body and extends into the limiting groove, and the guide sleeve is installed in the shell body.
[0008] In some embodiments, the oil hole is opened on the limiting member.
[0009] In some embodiments, the oil hole is connected to the limiting groove.
[0010] In some embodiments, the limiting member is detachably connected to the shell body.
[0011] In some embodiments, the telescopic part includes a hydraulic cylinder and an inner sleeve, the abutment joint and the inner sleeve are fixedly connected to the piston rod of the hydraulic cylinder, the cylinder barrel of the hydraulic cylinder and the shell body are fixedly connected, the inner sleeve and the guide sleeve are slidably connected along the telescopic direction of the telescopic part, and the limit groove is arranged on the inner sleeve.
[0012] In some embodiments, the sensing member includes a connecting rod and two sensing sheets; the connecting rod is fixedly connected to the telescopic member, and its length direction is parallel to the telescopic direction of the telescopic member, and the two sensing sheets are arranged on the connecting rod at intervals and in a staggered manner; two proximity switches are provided, and the two proximity switches are arranged at intervals and in a staggered manner, and are respectively located on the movement paths of the two sensing sheets.
[0013] In some embodiments, the abutment head includes an abutment head body and a baffle and a pad arranged on the abutment head body, the abutment head body and the telescopic member are fixedly connected, and the baffle and the pad are used to tighten the drum gear transmission shaft.
[0014] In a second aspect, an embodiment of the present application further provides a finishing mill shaft clamping device, comprising a plurality of finishing mill shaft clamping mechanisms provided in the first aspect above, wherein the plurality of finishing mill shaft clamping mechanisms are arranged at intervals to enclose and form a clamping cavity for clamping the drum-shaped gear transmission shaft.
[0015] In some embodiments, four of the finishing mill shaft coupling and clamping mechanisms are provided, and the four finishing mill shaft coupling and clamping mechanisms are arranged in an array. The finishing mill shaft coupling and clamping device also includes a bracket, and the four finishing mill shaft coupling and clamping mechanisms are fixedly connected to the bracket, and two opposite finishing mill shaft coupling and clamping mechanisms enclose together to form a clamping cavity.
[0016] The utility model has at least the following beneficial effects:
[0017] The shaft clamping mechanism of the finishing mill provided in the present application includes a housing, a telescopic member, an abutment head, a guide sleeve, a sensing member and at least two proximity switches. The guide sleeve is installed in the housing, the telescopic member is located in the guide sleeve and is slidably connected with the guide sleeve, and the telescopic member drives the abutment head to move to clamp the transmission shaft. In the related art, as the shaft clamping mechanism of the finishing mill is used for a longer time, the friction between the telescopic member and the guide sleeve is too large and wear occurs, resulting in poor matching accuracy between the telescopic member and the guide sleeve, causing the telescopic member to swing during the movement, thereby causing the sensing member on it to swing, causing the proximity switch to fail to detect the position signal of the sensing member. The present application is provided with an oil hole on the housing, the oil hole is connected to the gap between the guide sleeve and the telescopic member, so as to replenish oil in the gap, so as to reduce the friction between the telescopic member and the guide sleeve, thereby reducing the wear between the clamping mechanism and the guide sleeve to a certain extent, so that the proximity switch can smoothly detect the position signal of the sensing member, and also helps to improve the positioning accuracy of the drum gear shaft head, helps to realize the automatic replacement of the working rolls of the finishing mill, and improves the production efficiency of the rolling production line. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0019] Figure 1 A schematic structural diagram of a shaft clamping mechanism for a finishing mill in one or more embodiments of the present application is shown.
[0020] Figure 2 Shows Figure 1 Schematic diagram of the structure after partial section.
[0021] Figure 3 Shows Figure 2Enlarged view of point A in the middle.
[0022] Figure 4 A schematic diagram of the structure of a clamping device in one or more embodiments of the present application is shown.
[0023] Figure 5 The schematic diagram of the structure of the induction element and the proximity switch in the related art is shown
[0024] : 1000-finishing mill shaft clamping device, 200-bracket, 100-finishing mill shaft clamping mechanism, 110-housing, 111-housing body, 112-limiting member, 113-oil hole, 120-telescopic member, 121-hydraulic cylinder, 1211-cylinder barrel, 1212-cylinder head, 1213-piston, 1214-piston rod, 122-inner sleeve, 123-limiting groove, 130-butt joint, 131-butt joint body, 132-baffle, 133-pad, 140-guide sleeve, 150-sensing member, 151-connecting rod, 152-sensing plate, 160-proximity switch, 2000-tightening drum gear transmission shaft. DETAILED DESCRIPTION
[0025] 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.
[0026] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.
[0027] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0028] In addition, in the present utility model, descriptions such as "first", "second", etc. 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 the 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.
[0029] On the hot strip production line, as rolling continues, the working rolls are constantly worn and need to be replaced. With the increase in the speed and automation of hot rolling mills, the number of working roll replacements is becoming increasingly frequent. In actual production, the working rolls need to be replaced 8-10 times a day.
[0030] When the working roll is replaced, a shaft clamping device is required, which is set on the drum gear transmission shaft. In the process of replacing the working roll, it is required to quickly plug and unplug the working roll flat head and the drum gear transmission shaft head, and after the working roll flat head is pulled out, the drum gear transmission shaft head can accurately remain in the original position. Because the installation gap between the working roll flat head and the drum gear transmission shaft head is very small, the shaft clamping device has high requirements for the positioning accuracy of the drum gear transmission shaft head, and the position accuracy of the drum gear transmission shaft head also needs to be maintained after the roll is withdrawn.
[0031] The shaft-jointing clamping device is provided with a sensing member and a plurality of proximity switches (position switches). During the operation of the shaft-jointing clamping device, the sensing member moves along with the movement of the abutting head of the shaft-jointing clamping device and approaches the plurality of proximity switches respectively, so that the proximity switches detect the movement state of the shaft-jointing clamping device. However, in the prior art, as the shaft-jointing clamping device is used for a longer time, the proximity switch often fails to detect the position signal of the sensing member, resulting in signal loss. The position signal loss will cause the automatic roll changing process to be interrupted, and the operator can only switch from automatic to manual roll changing, and manual roll changing causes a waste of time and a decrease in production efficiency.
[0032] Therefore, in the related art, the shaft clamping device has the technical problem that the proximity switch often fails to detect the position signal. The embodiment of the present application provides a shaft clamping mechanism and a clamping device for a finishing mill, which can at least solve the above technical problem to a certain extent.
[0033] The applicant of the present application observed the existing structure and found that: as the use time of the shaft coupling and clamping device increases, the telescopic part of the shaft coupling and clamping device will swing, and the sensing part is installed on the telescopic part, which will cause the sensing part to swing together, and the proximity switch often fails to detect the position signal of the sensing part. The inventor further analyzed the reasons for the swing of the telescopic part and concluded that: during the telescopic process of the telescopic part, the friction between the telescopic part and the guide sleeve is too large, and the telescopic part and the guide sleeve rub against each other, resulting in serious wear between the guide sleeve and the telescopic part, causing the matching accuracy between the telescopic part and the guide sleeve to deteriorate, which in turn causes the telescopic part to swing. Therefore, based on the above-mentioned discovery of the problem and analysis of the cause of the problem, the applicant of the present application proposed the shaft coupling and clamping mechanism of the finishing mill.
[0034] The present application is described below with reference to the accompanying drawings and specific embodiments:
[0035] like Figure 1 and Figure 2 As shown, an embodiment of the present application provides a finishing mill shaft clamping mechanism 100 for clamping a transmission shaft of the finishing mill, comprising a housing 110 , a telescopic member 120 , an abutment head 130 , a guide sleeve 140 , a sensing member 150 and at least two proximity switches 160 .
[0036] The telescopic member 120 is mounted on the housing 110, and the telescopic member 120 can move telescopically. The abutment 130 is used to abut the transmission shaft. The abutment 130 is mounted on the telescopic member 120, and can move with the telescopic member 120, and then abut the drum-shaped gear transmission shaft 2000. When it is necessary to abut the drum-shaped gear transmission shaft 2000, the telescopic member 120 extends to drive the abutment 130 to abut the transmission shaft. When abutment is not required, the telescopic member 120 shortens, so that the abutment 130 is away from the drum-shaped gear transmission shaft 2000. The structural form of the telescopic member 120 is various, such as an electric telescopic rod, a pneumatic telescopic structure, a hydraulic telescopic structure, a mechanical linkage telescopic structure (connecting rod mechanism, crank mechanism, etc.), etc., which are not limited in this application.
[0037] The guide sleeve 140 is installed in the housing 110, and one side of the telescopic member 120 is located in the guide sleeve 140 and is slidably connected with the guide sleeve 140 along the telescopic direction of the telescopic member 120. The guide sleeve 140 guides the telescopic member 120 so that the telescopic member 120 extends or retracts according to the preset telescopic direction, thereby ensuring the movement accuracy of the telescopic member 120 and the positioning accuracy of the abutment head 130.
[0038] The sensing member 150 is arranged on the telescopic member 120 or the abutment 130, and a plurality of proximity switches 160 are arranged on the housing 110, arranged in sequence along the telescopic direction of the telescopic member 120 and located on the movement path of the sensing member 150, so as to detect the position of the telescopic member 120 relative to the housing 110. When the telescopic member 120 telescopes, the sensing member 150 is driven to move together, and when the sensing member 150 approaches the proximity switch 160, the proximity switch 160 will sense. The plurality of proximity switches 160 are arranged in sequence along the telescopic direction of the telescopic member 120 to sense different positions of the sensing member 150, so as to know the position of the telescopic member 120 relative to the housing 110 and the telescopic state of the telescopic member 120. The structure of the proximity switch 160 and the structure and material of the sensing member 150 are known to those skilled in the art, and will not be described in detail here. Normally, the proximity switch 160 is electrically connected to the control module of the fully automatic roller changing system. When the sensing sheet 152 approaches, the proximity switch 160 sends an electrical signal to the control module. The control module controls the movement state of the telescopic part 120 and the working state of other electrical components according to the electrical signal to realize the function of fully automatic roller changing.
[0039] An oil hole 113 is provided on the housing 110, and the oil hole 113 is connected to the gap between the guide sleeve 140 and the telescopic member 120. The lubricating oil can be injected into the gap between the guide sleeve 140 and the telescopic member 120 through the oil hole 113 to lubricate the guide sleeve 140 and the telescopic member 120, reduce the friction between the telescopic member 120 and the guide sleeve 140, and reduce or avoid the wear between the clamping mechanism and the guide sleeve 140 to a certain extent, and avoid the swing of the telescopic frame and the sensor 150 to a certain extent, so that the proximity switch 160 can smoothly detect the position signal of the sensor 150, and it is also helpful to improve the positioning accuracy of the drum gear shaft head, help to realize the automatic replacement of the working rolls of the finishing mill, and improve the production efficiency of the rolling production line.
[0040] In order to improve the safety of the finishing mill shaft clamping mechanism 100 of the present application, in some implementations, such as Figure 1As shown, a limiting groove 123 is provided on one side of the telescopic member 120 located in the guide sleeve 140; the housing 110 includes a housing body 111 and a limiting member 112, the limiting member 112 is installed in the housing body 111 and penetrates through the housing body 111 of the housing 110 and extends into the limiting groove 123, and the guide sleeve 140 is installed in the housing body 111. After such a design, when the proximity switch 160 cannot detect the position signal of the sensing member 150, the control module of the fully automatic roll changing system cannot control the movement state of the telescopic member 120, and the telescopic member 120 extends or retracts too far, the telescopic member 120 continues to move, and the inner wall of the limiting groove 123 on it will contact the limiting member 112, preventing the telescopic member 120 from continuing to extend or retract, so as to limit the telescopic distance of the telescopic member 120, which improves the safety of the shaft-jointing clamping mechanism 100 of the finishing mill of the present application to a certain extent, and facilitates the use of the shaft-jointing clamping mechanism 100 of the finishing mill of the present application. In addition, the design of the limit member 112 and the limit groove 123 can guide the telescopic direction of the telescopic member 120 to a certain extent, and prevent the telescopic member 120 from rotating around its axis during the telescopic process. After such a design, the limit member 112 can also adopt a screw nut structure, which helps to ensure the diversity of the structure of the limit member 112.
[0041] In order to simplify the structure of the shell body 111 and facilitate the processing of the shell body 111 , in some embodiments, the oil hole 113 is opened on the limiting member 112 .
[0042] After the limiting groove 123 is opened, the limiting groove 123 is connected to the gap between the guide sleeve 140 and the telescopic member 120. In some embodiments, in order to reduce the machining accuracy of the oil hole 113 on the limiting member 112, thereby reducing the machining difficulty of the limiting member 112, the oil hole 113 is connected to the limiting groove 123. After such a design, the lubricating oil first enters the limiting groove 123, and then overflows from the limiting groove 123 into the gap. The size of the limiting groove 123 is large, so the machining accuracy requirement for the oil hole 113 is low. At the same time, after such a design, the lubricating oil lubricates the limiting member 112 and the limiting groove 123 at the same time, which also reduces the friction between the limiting member 112 and the limiting groove 123 to a certain extent, and avoids the wear of the limiting member 112 and the limiting groove 123 to a certain extent.
[0043] The stopper 112 can be mounted on the housing 110 in a non-detachable manner, such as by welding or bonding, or can be mounted on the housing 110 in a detachable manner, such as by snap connection or thread connection. In some embodiments, in order to facilitate maintenance of the shaft clamping mechanism 100 of the finishing mill of the present application, the stopper 112 is detachably connected to the housing 110.
[0044] In some embodiments, Figure 2As shown, the telescopic member 120 includes a hydraulic cylinder 121 and an inner sleeve 122. The structure of the hydraulic cylinder 121 is known to those skilled in the art, and includes a cylinder barrel 1211, a cylinder head 1212, a piston 1213, a piston rod 1214 and other components. The abutment 130 and the inner sleeve 122 are both fixedly connected to the piston rod 1214 of the hydraulic cylinder 121. The piston rod 1214 performs telescopic movement under the action of the hydraulic oil in the cylinder barrel 1211, thereby driving the abutment 130 and the inner sleeve 122 to perform telescopic movement. The cylinder barrel 1211 of the hydraulic cylinder 121 is fixedly connected to the housing body 111, and the inner sleeve 122 and the guide sleeve 140 are slidably connected along the telescopic direction of the telescopic member 120, that is, along the telescopic direction of the piston rod 1214. The limiting groove 123 is provided on the inner sleeve 122.
[0045] In order to improve the sensing accuracy of the proximity switch 160, in some embodiments, such as Figure 3 As shown, the sensing member 150 includes a connecting rod 151 and two sensing sheets 152; the connecting rod 151 is fixedly connected to the telescopic member 120, and its length direction is parallel to the telescopic direction of the telescopic member 120, and the two sensing sheets 152 are arranged on the connecting rod 151 at intervals and in a staggered manner; two proximity switches 160 are arranged at intervals and in a staggered manner, and are respectively located on the movement paths of the two sensing sheets 152. After such a design, Figure 3 As shown, the two sensing sheets 152 are respectively located at the upper and lower sides of the connecting rod 151, and the two sensing sheets 152 are also respectively at the upper and lower sides of the connecting rod 151. The sensing sheet 152 located above the connecting rod 151 cooperates with the proximity switch 160 located above the connecting rod 151, and the sensing sheet 152 located below the connecting rod 151 cooperates with the proximity switch 160 located below the connecting rod 151, so that the proximity switch 160 senses the position; when the sensing sheet 152 located above and the proximity switch 160 located above are close, the sensing sheet 152 located below and the proximity switch 160 located below are far away; when the sensing sheet 152 located below and the proximity switch 160 located below are close, the sensing sheet 152 located above and the proximity switch 160 located above are far away; the two sensing sheets 152 and the two proximity switches 160 complement each other and interfere with each other. After the present application is designed in this way, even if a certain amount of wear occurs between the telescopic member 120 and the guide sleeve 140, the telescopic member 120 drives the sensing member 150 to swing, and the sensing sheet 152 on the sensing member 150 can still sense the proximity switch 160, which helps to ensure that the proximity switch 160 can smoothly detect the position signal of the sensing member 150 and avoid signal loss to a certain extent.
[0046] In traditional schemes, such as Figure 5As shown, the two proximity switches are located on the same side of the connecting rod, and the connecting rod is located above the two proximity switches. Only one sensor plate is arranged on the connecting rod. With this design, when wear occurs between the telescopic member and the guide sleeve, the telescopic member drives the sensor member to swing, and the sensor plate thereon shakes up and down. When the sensor plate approaches the proximity switch, the sensor plate will jump away from the proximity switch due to the swing, causing the signal to be lost.
[0047] The structure of the abutment 130 is diverse and is not limited in the present application. In some embodiments, the abutment 130 includes an abutment body 131 and a baffle 132 and a pad 133 arranged on the abutment body 131. The abutment body 131 is fixedly connected to the telescopic structure, and the baffle 132 and the pad 133 are used to tighten the drum gear transmission shaft 2000. After such a design, the abutment 130 is composed of the abutment body 131, the baffle 132 and the pad 133. The abutment 130 is a split structure, which is helpful for the processing of the abutment 130 and reduces the processing difficulty. After such a design, the drum gear transmission shaft 2000 is tightened by the joint action of the baffle 132 and the pad 133, thereby ensuring the tightening strength between the abutment 130 and the drum gear transmission shaft 2000. In some embodiments, one baffle 132 and two pads 133 are provided, and the baffle 132 is located between the two pads 133. The structures of the baffle 132 and the pad 133 are various and are not limited in this application. Figure 1 As mentioned above, in some embodiments, the baffle 132 is provided with an arc groove on the side close to the drum gear transmission shaft 2000, and the radius of the arc groove is the same as the radius of the drum gear transmission shaft 2000, so as to increase the contact area between the baffle 132 and the drum gear transmission shaft 2000, so as to make the abutment more secure. Figure 1 As shown, the pad 133 is in a rectangular parallelepiped shape.
[0048] The method of using the shaft clamping mechanism 100 of the finishing rolling mill of the present application is as follows: when it is necessary to clamp the drum-shaped gear transmission shaft 2000, the telescopic member 120 is extended, driving the abutting head 130 to move toward the drum-shaped gear transmission shaft 2000 and abut against the drum-shaped gear transmission shaft 2000. During use, lubricating oil is added to the gap between the guide sleeve 140 and the telescopic member 120 through the oil hole 113 at intervals.
[0049] In summary, the shaft-coupling clamping mechanism 100 of the finishing mill provided in the present application includes a housing 110, a telescopic member 120, an abutment head 130, a guide sleeve 140, a sensor 150 and at least two proximity switches 160. The guide sleeve 140 is installed in the housing 110, the telescopic member 120 is located in the guide sleeve 140 and is slidably connected with the guide sleeve 140, and the telescopic member 120 drives the abutment head 130 to move to clamp the transmission shaft. In the related art, as the shaft-coupling clamping mechanism 100 of the finishing mill is used for a longer time, the friction between the telescopic member 120 and the guide sleeve 140 is too large and wear occurs, resulting in a deterioration in the matching accuracy between the telescopic member 120 and the guide sleeve 140, causing the telescopic member 120 to swing during the operation, and then causing the sensor 150 thereon to swing, causing the proximity switch 160 to fail to detect the position signal of the sensor 150. The present application has an oil hole 113 on the housing 110, and the oil hole 113 is connected to the gap between the guide sleeve 140 and the telescopic member 120 to replenish the gap with oil, so as to reduce the friction between the telescopic member 120 and the guide sleeve 140, thereby reducing the wear between the clamping mechanism and the guide sleeve 140 to a certain extent, so that the proximity switch 160 can smoothly detect the position signal of the sensing member 150, and it also helps to improve the positioning accuracy of the drum gear shaft head, and helps to realize the fully automatic replacement of the working rolls of the finishing mill, and improve the production efficiency of the rolling production line. The setting of the limit groove 123 and the limit member 112 improves the safety of the shaft coupling clamping mechanism 100 of the finishing mill of the present application to a certain extent, and facilitates the use of the shaft coupling clamping mechanism 100 of the finishing mill of the present application. The oil hole 113 is opened on the limit member 112, which helps to simplify the structure of the housing body 111 and facilitates the processing of the housing body 111. The oil hole 113 is connected to the limit groove 123, which helps to reduce the machining accuracy of the oil hole 113 on the limit member 112, thereby reducing the machining difficulty of the limit member 112. The design of two sensing sheets 152 and two proximity switches 160 located on the upper and lower sides of the connecting rod 151 helps to ensure that the proximity switch 160 can smoothly detect the position signal of the sensing member 150, and avoid signal loss to a certain extent.
[0050] Based on the same inventive concept, the embodiment of the present application also provides a finishing mill shaft clamping device 1000, which includes a plurality of finishing mill shaft clamping mechanisms 100 provided in the present application, and the plurality of finishing mill shaft clamping mechanisms 100 are arranged at intervals to enclose a clamping cavity for clamping the transmission shaft. The number of finishing mill shaft clamping mechanisms 100 can be two, and the two finishing mill shaft clamping mechanisms 100 are arranged relative to each other to enclose a clamping cavity for clamping the transmission shaft. The number of finishing mill shaft clamping mechanisms 100 can be three, etc., which is not limited in the present application. The three finishing mill shaft clamping mechanisms 100 are evenly arranged around the circumference to enclose a clamping cavity for clamping the transmission shaft. Since the finishing mill shaft clamping device 1000 adopts the finishing mill shaft clamping mechanism 100 provided in the present application, it naturally has all the beneficial effects of the finishing mill shaft clamping mechanism 100, which will not be repeated here.
[0051] In some embodiments, Figure 4 As shown, the finishing mill shaft clamping device 1000 is provided with four finishing mill shaft clamping mechanisms 100, which are arranged in an array, and the finishing mill shaft clamping device 1000 also includes a bracket 200, and the four finishing mill shaft clamping mechanisms 100 are fixedly connected to the bracket 200, and two opposite finishing mill shaft clamping mechanisms 100 are surrounded to form a clamping cavity. After such a design, the finishing mill shaft clamping device 1000 forms two clamping cavities, which can clamp two drum-shaped gear transmission shafts 2000 at the same time, which helps to improve the working efficiency of the finishing mill shaft clamping device 1000.
[0052] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.
[0053] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.
[0054] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.
Claims
1. A finishing mill shaft clamping mechanism, characterized in that: Drum gear drive shaft (2000) for clamping finishing mill, including: A housing (110), a telescopic member (120), a butt joint (130) and a guide sleeve (140), wherein the telescopic member (120) is mounted on the housing (110) and can be telescopically moved, the butt joint (130) is mounted on the telescopic member (120) and is used to press against a drum-shaped gear transmission shaft (2000), the guide sleeve (140) is mounted in the housing (110), one side of the telescopic member (120) is located in the guide sleeve (140) and is slidably connected to the guide sleeve (140) along the telescopic direction of the telescopic member (120); A sensing member (150) and at least two proximity switches (160), wherein the sensing member (150) is arranged on the telescopic member (120) or the abutment member (130), and a plurality of proximity switches (160) are arranged on the housing (110), arranged in sequence along the telescopic direction of the telescopic member (120) and located on a movement path of the sensing member (150), so as to detect a position of the telescopic member (120) relative to the housing (110); The housing (110) is provided with an oil hole (113), and the oil hole (113) is connected to the gap between the guide sleeve (140) and the telescopic member (120).
2. The finishing mill shaft clamping mechanism according to claim 1, characterized in that: A limiting groove (123) is provided on one side of the telescopic member (120) located inside the guide sleeve (140); the housing (110) comprises a housing body (111) and a limiting member (112); the limiting member (112) is installed on the housing body (111) and passes through the housing body (111) and extends into the limiting groove (123); the guide sleeve (140) is installed in the housing body (111).
3. The finishing mill shaft clamping mechanism according to claim 2, characterized in that: The oil hole (113) is opened on the limiting member (112).
4. The finishing mill shaft clamping mechanism according to claim 3, characterized in that: The oil hole (113) is communicated with the limiting groove (123).
5. The finishing mill shaft clamping mechanism according to claim 2, characterized in that: The limiting member (112) is detachably connected to the housing body (111).
6. The finishing mill shaft clamping mechanism according to claim 5, characterized in that: The telescopic member (120) comprises a hydraulic cylinder (121) and an inner sleeve (122); the abutment joint (130) and the inner sleeve (122) are both fixedly connected to a piston rod (1214) of the hydraulic cylinder (121); the cylinder barrel (1211) of the hydraulic cylinder (121) and the housing body (111) are fixedly connected; the inner sleeve (122) and the guide sleeve (140) are slidably connected along the telescopic direction of the telescopic member (120); and the limit groove (123) is provided on the inner sleeve (122).
7. The finishing mill shaft clamping mechanism according to any one of claims 1 to 6, characterized in that: The sensing member (150) comprises a connecting rod (151) and two sensing sheets (152); the connecting rod (151) is fixedly connected to the telescopic member (120), and its length direction is parallel to the telescopic direction of the telescopic member (120); the two sensing sheets (152) are arranged on the connecting rod (151) at intervals and in a staggered manner; two proximity switches (160) are arranged, the two proximity switches (160) are arranged at intervals and in a staggered manner, and are respectively located on the movement paths of the two sensing sheets (152).
8. The finishing mill shaft clamping mechanism according to any one of claims 1 to 6, characterized in that: The abutment head (130) comprises an abutment head body (131) and a baffle plate (132) and a pad plate (133) arranged on the abutment head body (131); the abutment head body (131) and the telescopic member (120) are fixedly connected; the baffle plate (132) and the pad plate (133) are used to tightly abut the drum-shaped gear transmission shaft.
9. A finishing mill shaft clamping device, characterized in that: It comprises a plurality of finishing mill shaft coupling and clamping mechanisms (100) as described in any one of claims 1 to 8, wherein the plurality of finishing mill shaft coupling and clamping mechanisms (100) are arranged at intervals to enclose and form a clamping cavity for clamping the drum-shaped gear transmission shaft.
10. The finishing mill shaft clamping device according to claim 9, characterized in that: Four finishing mill shaft-coupling and clamping mechanisms (100) are provided, and the four finishing mill shaft-coupling and clamping mechanisms (100) are arranged in an array. The finishing mill shaft-coupling and clamping device (1000) further comprises a bracket (200), and the four finishing mill shaft-coupling and clamping mechanisms (100) are fixedly connected to the bracket (200), and two opposite finishing mill shaft-coupling and clamping mechanisms (100) enclose one clamping cavity.