Hydraulic oil way structure of large-tension winding drum

Abstract

The utility model discloses a hydraulic oil circuit structure of a large-tension winding drum, which relates to the technical field of large-tension winding drums, and is characterized in that a mounting groove is formed in a position, corresponding to a first pre-embedded oil pipe of a main shaft sleeve, of a collapsible rotary fixing sleeve, and an opening is formed in one side, close to the main shaft sleeve, of the mounting groove; a connector block and a locking block are sequentially installed in the installation groove from the opening side, a plug part is arranged at the position, corresponding to the first pre-embedded oil pipe, of the side, close to the main shaft sleeve, of the lower portion of the connector block, the plug part is inserted into a port of the first pre-embedded oil pipe, and a second pre-embedded oil pipe extending to the plug part is arranged in the connector block; the device has the beneficial effects that the sealing ring is convenient to replace, and the maintenance difficulty and cost are reduced; the structure is stable and the sealing performance is good; and the compatibility and the overall performance of the equipment are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to big tension reel technical field especially relates to a big tension reel hydraulic oil way structure. BACKGROUND

[0002] In modern industrial production, for example in the field of metal strip rolling, processing, etc., the big tension reel plays a crucial role in the coiling operation of the steel coil. The main function of the big tension reel is to coil the steel strip, and in this process, a large tension needs to be applied to the steel coil to ensure the tightness of the coiling and the quality of the steel coil.

[0003] In the structural design of the big tension reel, in order to realize the effective hydraulic control of the locking mechanism on the expansion and contraction sector plate, so as to clamp and lock the end head of the steel coil, a pre-buried oil pipe is usually arranged inside the main shaft sleeve. Through these oil ways, hydraulic oil can be delivered to the expansion and contraction sector plate, thereby providing the necessary oil pressure for the locking mechanism. However, at the oil way butt joint position between the main shaft sleeve and the expansion end cover, a sealing ring is arranged to prevent hydraulic oil leakage.

[0004] In actual industrial production environment, the big tension reel faces extremely harsh working conditions. On the one hand, the reel needs to withstand high tension during the coiling process, which will generate a huge pressure on each component, including the stress on the oil way butt joint between the main shaft sleeve and the expansion end cover. On the other hand, during the long-term frequent operation of the reel, the relative movement between the components inevitably leads to wear, which also aggravates the wear of the sealing ring.

[0005] Due to the double effects of high stress and wear, the sealing ring at this position is prone to damage. Once the sealing ring is damaged, hydraulic oil leakage will occur, affecting the normal work of the locking mechanism and thus affecting the coiling quality of the steel coil. However, the replacement operation after the sealing ring is damaged has serious inconvenience. According to the existing treatment method, when the sealing ring needs to be replaced, the reel must be disassembled to separate the expansion end cover and the main shaft sleeve by a certain gap to access the damaged sealing ring for replacement. This operation method has many problems: first, the disassembly process of the reel is very complex, requiring professional tools and technical personnel, consuming a lot of manpower and time. Second, disassembling the reel will affect the structural precision of the entire equipment, and after reassembly, complex debugging work may be needed to ensure that the equipment can operate normally. Third, this complex replacement operation will cause the equipment to be out of service for a long time, reducing production efficiency and increasing production cost.

[0006] In summary, the existing large tension reel in the main shaft sleeve and the expansion end cover oil way butt joint position sealing ring replacement difficult this problem, has become an important factor restricting the large tension reel high efficient and stable operation. Therefore, the urgent need for a new type of large tension reel hydraulic oil line structure, in order to solve the above problems. Utility model content

[0007] The utility model discloses a large tension reel hydraulic oil line structure can be provided to solve the above -mentioned problems.

[0008] The utility model discloses a large tension reel hydraulic oil line structure can be provided to solve the above -mentioned problems.

[0009] A kind of large tension reel hydraulic oil line structure, including first embedded oil pipe, second embedded oil pipe, first joint and second joint;The first embedded oil pipe is arranged in the main shaft sleeve, the first joint is installed on expansion rotation fixed sleeve, the second joint is connected with the oil line of lock edge mechanism;The first embedded oil pipe one end is connected with external oil station, the other end is connected with the second embedded oil pipe, the second embedded oil pipe is sealedly installed with first joint away from the first embedded oil pipe one end, the first joint is connected with the second joint by hose;Expansion rotation fixed sleeve is set with installation groove corresponding the first embedded oil pipe position of the main shaft sleeve, the installation groove is opened on the side close to the main shaft sleeve, connector block and locking block are installed in the installation groove from opening side in turn, plug-in portion is set in the connector block lower part close to the side corresponding the first embedded oil pipe position of the main shaft sleeve, the plug-in portion is inserted in the first embedded oil pipe port, second embedded oil pipe is set in the connector block and extends to the plug-in portion.

[0010] Preferably, the plug-in portion is provided with a sealing ring.

[0011] Preferably, the plug-in portion is provided with a sealing ring.

[0012] Preferably, the locking block is provided with an upper large and lower small structure for clamping the connector block, and the locking block and the expansion rotation fixed sleeve are fixedly connected through screws.

[0013] Preferably, the second joint is sealingly installed on the lock edge fan-shaped plate, and the expansion rotation fixed sleeve is provided with an avoiding groove corresponding to the position of the second joint.

[0014] A kind of large tension reel, uses a kind of large tension reel hydraulic oil line structure as described above.

[0015] Preferably, the system includes a main shaft sleeve mounted on a gearbox, with a mandrel passing through the main shaft sleeve. One end of the mandrel extends out of the gearbox and is fitted with a tension cylinder assembly, which rests against the main shaft sleeve. The other end of the mandrel extends out of the gearbox and is fitted with a tension rotary fixing sleeve, a tension sector plate, and a locking sector plate. The tension sector plate and the locking sector plate are slidably mounted on the mandrel. The mandrel is configured with an inclined surface corresponding to the tension sector plate and the locking sector plate to facilitate the expansion and contraction of the two plates. The tension sector plate and the locking sector plate are respectively connected to the tension rotary fixing sleeve via I-shaped pull blocks. The end of the I-shaped pull block away from the tension rotary fixing sleeve is configured with an inclined surface to ensure that when the tension cylinder assembly pulls the mandrel, the tension sector plate and the locking sector plate are tilted open. A head bearing seat is provided at the end of the mandrel away from the tension cylinder assembly.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. The expansion and contraction rotating fixed sleeve is equipped with a unique mounting groove structure corresponding to the first pre-embedded oil pipe position of the main shaft sleeve. In the mounting groove, the connector block and locking block are installed in sequence. When the sealing ring located at the plug is damaged due to high stress and wear, it is not necessary to disassemble the entire drum as in the traditional structure. Simply unscrew the screw of the locking block, remove the locking block, and the connector block can be easily removed to replace the sealing ring. This design greatly reduces the difficulty of replacing the sealing ring, reduces the time and labor costs required for maintenance, and improves the convenience of equipment maintenance.

[0018] 2. The plug is shaped like a frustum, with its diameter gradually increasing towards the connector block. This design allows the plug to gradually and tightly fit into the first pre-embedded oil pipe port. Combined with the sealing ring installed on the plug, it effectively prevents hydraulic oil leakage and ensures the sealing of the oil circuit. The locking block has a structure that is larger at the top and smaller at the bottom, and is fixedly connected to the expansion and contraction rotating fixing sleeve by screws. This structure can stably tighten the connector block after installation, preventing it from loosening due to vibration or other factors during operation. This ensures the stability of the connection between the plug and the first pre-embedded oil pipe, maintains good sealing performance, ensures stable operation of the hydraulic circuit, and helps improve the overall reliability of the high-tension drum.

[0019] 3, the expansion and contraction rotating fixed sleeve is provided with an avoiding groove corresponding to the second joint position, which can effectively avoid problems caused by interference between parts during equipment operation, so that the entire hydraulic oil path structure can better cooperate with the second joint sealingly installed on the locking edge sector plate, and the compatibility of the equipment is improved; the first joint and the second joint are connected through a hose, and the connection mode has certain flexibility, which can adapt to some small deformations or displacements of the winding drum during operation, reduces the risk of oil path damage caused by rigid connection, and thus helps to improve the overall performance of the large-tension winding drum in complex working environments; BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0021] Fig. 1 is a structural schematic view of the large-tension winding drum hydraulic oil path structure of the present application.

[0022] Fig. 2 is a three-dimensional structural schematic view of the large-tension winding drum of the present application.

[0023] Fig. 3 is an enlarged view of B of the large-tension winding drum hydraulic oil path structure of the present application.

[0024] Fig. 4 is a structural schematic view of the large-tension winding drum hydraulic oil path structure of the prior art.

[0025] Fig. 5 is a three-dimensional structural schematic view of the large-tension winding drum of the prior art.

[0026] Fig. 6 is an enlarged view of A of the large-tension winding drum hydraulic oil path structure of the prior art.

[0027] The following is an explanation of the reference signs:

[0028] 1, expansion and contraction cylinder assembly; 2, main shaft sleeve; 3, expansion and contraction rotating fixed sleeve; 4, first joint; 5, expansion and contraction shaft cover; 6, expansion and contraction sector plate; 7, second joint; 8, locking edge sector plate; 9, locking edge mechanism; 10, head bearing seat; 11, first embedded oil pipe; 12, sealing ring; 13, second embedded oil pipe; 14, locking block; 15, joint block; 16, mandrel; 17, I-shaped pull block; 18, avoiding groove; 19, inclined guide block. DETAILED DESCRIPTION

[0029] In the description of the utility model, it needs to be understood that, the orientation or positional relation indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or positional relation shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model, and furthermore, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features, and therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more of the features, and in the description of the utility model, the meaning of "a plurality of" is two or more than two, unless otherwise specified.

[0030] In the description of the utility model, it needs to be understood that, the orientation or positional relation indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or positional relation shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model, and furthermore, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features, and therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more of the features, and in the description of the utility model, the meaning of "a plurality of" is two or more than two, unless otherwise specified.

[0031] The utility model will be further described below in connection with the drawings:

[0032] A kind of large tension reel hydraulic oil path structure, including first embedded oil pipe 11, second embedded oil pipe 13, first joint 4 and second joint 7;First embedded oil pipe 11 is arranged in main shaft sleeve 2, first joint 4 is installed on expansion and contraction rotating fixed sleeve 3, second joint 7 is connected with the oil passage of lock edge mechanism 9;First embedded oil pipe 11 one end is connected with external oil station, other end is connected with second embedded oil pipe 13, second embedded oil pipe 13 is sealedly installed with first joint 4 away from first embedded oil pipe 11 one end, first joint 4 is connected with second joint 7 by hose;Expansion and contraction rotating fixed sleeve 3 is provided with installation groove corresponding the position of first embedded oil pipe 11 of main shaft sleeve 2, installation groove is opened on the side close to main shaft sleeve 2, joint block 15 and locking block 14 are sequentially installed in installation groove from opening side, plug-in portion is arranged in the lower part of joint block 15 close to the side of main shaft sleeve 2 corresponding the position of first embedded oil pipe 11, sealing ring 12 is installed on plug-in portion, plug-in portion is inserted in the port of first embedded oil pipe 11, second embedded oil pipe 13 is arranged in joint block 15 and extends to plug-in portion.

[0033] The plug part is provided in a circular truncated cone shape, and the diameter of the plug part gradually increases in the direction close to the joint block 15; the locking block 14 is provided in an upper-large-and-lower-small structure for conveniently pressing the joint block 15, and the locking block 14 is fixedly connected with the expansion-contraction rotating fixing sleeve 3 through a screw.

[0034] The second joint 7 is sealingly installed on the locking edge sector plate 8, the expansion-contraction rotating fixing sleeve 3 is provided with an avoiding groove 18 corresponding to the position of the second joint 7, so as to ensure that the second joint 7 does not collide with the expansion-contraction rotating fixing sleeve 3 when the locking edge sector plate 8 expands and contracts.

[0035] In addition, as Figs. 1-3 shown, the embodiment further provides a large-tension winding drum using the large-tension winding drum hydraulic oil way structure as described above, which comprises a main shaft sleeve 2 installed on a reduction box, the main shaft sleeve 2 is driven to rotate by a motor through a reduction box transmission belt, a mandrel 16 is arranged inside the main shaft sleeve 2, the main shaft sleeve 2 and the mandrel 16 are connected through a spline groove, the mandrel 16 extends out of the reduction box at one end and is provided with an expansion-contraction cylinder assembly 1, the expansion-contraction cylinder assembly 1 is pressed against the main shaft sleeve 2; the mandrel 16 extends out of the reduction box at the other end and is provided with an expansion-contraction rotating fixing sleeve 3, an expansion-contraction sector plate 6 and a locking edge sector plate 8 (in the prior art, the mandrel 16 extends out of the reduction box at the other end and is provided with the expansion-contraction rotating fixing sleeve 3, an expansion-contraction shaft cover 5, the expansion-contraction sector plate 6 and the locking edge sector plate 8, in the present application, the expansion-contraction shaft cover 5 is reduced, a work-type pull block 17 is arranged to share the load bearing of the mandrel 16, the shear force of the mandrel 16 at the end position of the expansion-contraction sector plate 6 and the locking edge sector plate 8 is reduced, and the risk of fracture of the mandrel 16 is reduced), the expansion-contraction sector plate 6 and the locking edge sector plate 8 are slidingly installed on the mandrel 16, the mandrel 16 is provided with a slope corresponding to the expansion-contraction sector plate 6 and the locking edge sector plate 8 to facilitate expansion and contraction of the expansion-contraction sector plate 6 and the locking edge sector plate 8, the expansion-contraction sector plate 6 and the locking edge sector plate 8 are connected with the expansion-contraction rotating fixing sleeve 3 through the work-type pull block 17, the end of the work-type pull block 17 away from the expansion-contraction rotating fixing sleeve 3 is provided in an inclined surface, so that when the expansion-contraction cylinder assembly 1 pulls the mandrel 16, the expansion-contraction sector plate 6 and the locking edge sector plate 8 are expanded and contracted in an oblique direction; the end of the mandrel 16 away from the expansion-contraction cylinder assembly 1 is provided with a head bearing seat 10.

[0036] Working principle: when in use, the large tension reel is in normal working state, the hydraulic oil in the hydraulic oil circuit normally circulates in the oil circuit system composed of the first embedded oil pipe 11, the second embedded oil pipe 13, the first joint 4, the second joint 7 and the hose, and provides oil pressure for the edge locking mechanism 9, so that the edge locking mechanism 9 can stably clamp and lock the end head of the steel coil; in this state, the sealing ring 12 located at the plug portion of the joint block 15 plays a sealing role to prevent the hydraulic oil from leaking from the connection between the plug portion and the port of the first embedded oil pipe 11; after the equipment runs for a period of time, it is found through regular equipment inspection or equipment monitoring system that the hydraulic oil appears slight leakage phenomenon. After further inspection, it is determined that the sealing ring 12 of the plug portion of the joint block 15 is damaged due to long-term high stress and wear; the maintenance personnel first close the communication valve between the external oil station and the first embedded oil pipe 11 to stop the supply of hydraulic oil; then, the screw connecting the locking block 14 and the expansion and contraction rotary fixing sleeve 3 is unscrewed by using appropriate tools, and the locking block 14 is taken out of the installation groove; since the locking block 14 no longer tightly presses the joint block 15, the maintenance personnel can easily pull out the joint block 15 from the installation groove; at this time, the plug portion is separated from the port of the first embedded oil pipe 11, and the maintenance personnel can conveniently take off the damaged sealing ring 12 from the plug portion; then, the new sealing ring 12 is installed on the plug portion, the joint block 15 is inserted back into the installation groove, and the plug portion is reinserted into the port of the first embedded oil pipe 11; finally, the locking block 14 is put back into the installation groove, and the screw is fixed again, the communication valve between the external oil station and the first embedded oil pipe 11 is opened, the supply of hydraulic oil is restored, and the equipment can be normally operated again. The whole replacement process does not need to disassemble the reel, and the maintenance time is greatly shortened.

[0037] The expansion and contraction cylinder assembly 1, the main shaft sleeve 2, the first joint 4, the expansion and contraction shaft cover 5, the expansion and contraction sector plate 6, the second joint 7, the edge locking sector plate 8, the edge locking mechanism 9, the head bearing seat 10, the mandrel 16, the I-shaped pulling block 17 and the inclined guide block 19 are all general standard parts or parts known by those skilled in the art, the structure and principle of which can be known by those skilled in the art through technical manuals or through conventional experimental methods, so no more description is made here.

[0038] The basic principle, main features and advantages of the utility model are shown and described above, and those skilled in the art should understand that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the utility model, and the utility model can have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed.

Claims

1. A large tension reel hydraulic oil circuit structure, comprising a first embedded oil pipe (11), a second embedded oil pipe (13), a first joint (4) and a second joint (7); the first embedded oil pipe (11) is arranged in the main shaft sleeve (2), the first joint (4) is installed on the expansion and contraction rotating fixed sleeve (3), and the second joint (7) is connected with the oil circuit of the locking edge mechanism (9); one end of the first embedded oil pipe (11) is connected with an external oil station, and the other end is connected with the second embedded oil pipe (13), a first joint (4) is sealingly installed at one end of the second embedded oil pipe (13) away from the first embedded oil pipe (11), and the first joint (4) is connected with the second joint (7) through a hose; characterized in that: The expansion and contraction rotating fixed sleeve (3) is provided with a mounting groove corresponding to the position of the first embedded oil pipe (11) of the main shaft sleeve (2), the mounting groove is open on the side close to the main shaft sleeve (2), a joint block (15) and a locking block (14) are mounted in the mounting groove from the opening side, a plug part is arranged at the lower part of the joint block (15) close to the side of the main shaft sleeve (2) and corresponding to the position of the first embedded oil pipe (11), the plug part is inserted into the port of the first embedded oil pipe (11), and a second embedded oil pipe (13) extending to the plug part is arranged in the joint block (15).

2. The hydraulic oil circuit structure of a large tension reel according to claim 1, characterized in that: The plug part is provided with a sealing ring (12).

3. The hydraulic circuit structure for a large tension reel according to claim 1, characterized in that: The plug part is provided in a circular truncated cone shape, and the diameter of the plug part gradually increases in the direction close to the joint block (15).

4. The hydraulic oil circuit structure of a large tension reel according to claim 1, characterized in that: The locking block (14) is provided in an upper-large-and-lower-small structure to facilitate the clamping of the joint block (15), and the locking block (14) is fixedly connected with the expansion and contraction rotating fixed sleeve (3) through screws.

5. The hydraulic circuit structure for a large tension reel according to claim 1, characterized in that: The second joint (7) is sealingly mounted on the lock edge sector plate (8), and the expansion and contraction rotating fixed sleeve (3) is provided with an avoiding groove (18) corresponding to the position of the second joint (7).

6. A large tension reel characterized by: The large-tension reel hydraulic oil path structure of any one of claims 1-5 is used.

7. A high tension reel according to claim 6 wherein: The main shaft sleeve (2) is mounted on a reduction box, a mandrel (16) is arranged in the main shaft sleeve (2), the mandrel (16) extends out of the reduction box at one end and is provided with an expansion and contraction cylinder assembly (1), the expansion and contraction cylinder assembly (1) is clamped on the main shaft sleeve (2); the mandrel (16) extends out of the reduction box at the other end and is provided with an expansion and contraction rotating fixed sleeve (3), an expansion and contraction sector plate (6), and a lock edge sector plate (8), the expansion and contraction sector plate (6) and the lock edge sector plate (8) are slidingly mounted on the mandrel (16), the mandrel (16) is provided with a slope corresponding to the expansion and contraction sector plate (6) and the lock edge sector plate (8) to facilitate the expansion and contraction of the expansion and contraction sector plate (6) and the lock edge sector plate (8), the expansion and contraction sector plate (6) and the lock edge sector plate (8) are connected with the expansion and contraction rotating fixed sleeve (3) through a work-type pulling block (17), the work-type pulling block (17) is provided with an inclined surface at the end away from the expansion and contraction rotating fixed sleeve (3), so that the expansion and contraction sector plate (6) and the lock edge sector plate (8) are expanded obliquely when the expansion and contraction cylinder assembly (1) pulls the mandrel (16); and a head bearing seat (10) is arranged at the end of the mandrel (16) away from the expansion and contraction cylinder assembly (1).

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