Conical roller split mechanism and ring rolling mill

Abstract

The utility model relates to the technical field of forging equipment, and provides a cone roller split mechanism and a ring rolling mill, the cone roller split mechanism comprises a rack, a rotating shaft, a connecting rod, a cone roller, a hydraulic nut and a fastener, the connecting rod penetrates through the rotating shaft; the conical roller and the hydraulic nut are oppositely arranged at the two ends of the connecting rod and are connected in a threaded screwing mode. The fastener is arranged on the hydraulic nut and used for limiting the stroke of the hydraulic nut. The conical roller and the hydraulic nut are arranged at the two ends of the connecting rod, so that the conical roller can be tensioned through the connecting rod by pressurizing the hydraulic nut, and the conical roller and the rotating shaft are fixed; meanwhile, the connecting rod is connected with the conical roller in a screwed mode through threads, the hydraulic nut serves as a pressurizing piece, the conical roller can be loosened after pressure relief, and therefore the conical roller can be disassembled conveniently, and the structure is simple; and the hydraulic nut of the structure is located on the outer side, overhauling and maintenance can be continued conveniently, and application convenience can be improved.

Description

Technical Field

[0001] This utility model relates to the field of forging equipment technology, and in particular to a cone roller splitting mechanism and a ring rolling mill. Background Technology

[0002] In recent years, there have been many domestic manufacturers of ring rolling mills. The development, research, and production of ring rolling mills are gradually aligning with international mainstream trends. Ring rolling technology has now become one of the most efficient, advanced, and primary processes for producing ring-shaped mechanical parts, and it is rapidly developing towards large-scale, high-speed, precision, and complex ring rolling technologies. Currently produced ring rolling mills are mainly improvements on existing designs. The tapered rollers primarily work by extruding and rubbing high-temperature workpieces to induce regular deformation. Due to the nature of their operation, the head of the tapered roller is easily worn. Early, longer tapered rollers experienced continuous wear on their conical surfaces, requiring repair or replacement, which presented problems such as difficult disassembly and high costs.

[0003] The existing utility model patent with authorization announcement number CN205436614U discloses a quick-change device for a conical roller of a ring rolling machine, including a housing, a main shaft, and a conical roller. The main shaft, which passes through the housing, is connected by bearings I, II, and III. The right end of the main shaft extends out of the housing, and a hydraulic cylinder is fixed to the right end of the main shaft. From left to right, the main shaft has a conical roller shaft cavity, a fixed cavity, and a tie rod cavity. The conical roller shaft is located in the conical roller shaft cavity and fits therewith. A pull stud is connected to the right end of the conical roller shaft. A transition ring is provided in the fixed cavity, which fits into the fixed cavity. A gripper is provided in the transition ring, which cooperates with the pull stud. The right end of the gripper is connected to a tie rod located in the tie rod cavity, and the right end of the tie rod is connected to the telescopic end of the hydraulic cylinder.

[0004] In the above scheme, the pull rod is driven to move by a hydraulic cylinder, and then the clamps are used to hold the pull studs on the tapered roller to achieve the connection. However, the internal structure of this scheme is too complicated, especially when the clamps have problems, it is not easy to find out and it is not easy to maintain, which is not very advantageous in practical applications. Utility Model Content

[0005] In view of this, the present invention proposes a simple and easy-to-disassemble cone roller splitting mechanism and a ring rolling mill to solve the problems of complex structure and inconvenient maintenance of existing cone roller assemblies.

[0006] The technical solution of this utility model is implemented as follows:

[0007] On the one hand, this utility model provides a split-type conical roller mechanism, including a frame, a rotating shaft, a connecting rod, a conical roller, a hydraulic nut, and fasteners, wherein,

[0008] The rotating shaft is rotatably connected to the frame;

[0009] The connecting rod passes through the pivot.

[0010] The tapered roller and the hydraulic nut are positioned opposite each other at both ends of the connecting rod, and the tapered roller is connected to the connecting rod by a threaded connection;

[0011] Fasteners are installed on the hydraulic nut and are used to limit the stroke of the hydraulic nut.

[0012] Based on the above technical solutions, preferably, the hydraulic nut includes a fixing block, a nut, a screw, and a sealing ring, wherein,

[0013] The fixed block is connected to the rotating shaft;

[0014] The nut is connected to the fixing block;

[0015] The screw is inserted into the fixed block, the screw and nut are threaded together, and the screw is sleeved with the connecting rod;

[0016] The screw has a stepped shaft structure, and sealing rings are provided on the two stepped surfaces of the screw. An oil injection port connecting the gap between the two sealing rings is opened on the fixing block.

[0017] Based on the above technical solutions, preferably, the fastener includes a first driving member and a push rod, wherein...

[0018] The first driving component is located at the end of the connecting rod;

[0019] The push rod is connected to the movable end of the first driving member, the push rod is parallel to the connecting rod, and passes through the nut.

[0020] Based on the above technical solutions, preferably, the fastener also includes a threaded cylinder and a connecting bracket, and the first driving component is a motor, wherein...

[0021] One threaded cylinder is installed on the main shaft of the motor and one on the push rod, and they are threaded together.

[0022] Each end of the connecting bracket is connected to a threaded cylinder.

[0023] Based on the above technical solutions, preferably, the fastener also includes a bearing housing, and the end of the connecting rod is provided with a through groove;

[0024] The first driving component and the bearing housing are fitted into the through groove. The bearing housing is rotatably engaged with the movable end of the first driving component, and the side of the bearing housing away from the first driving component abuts against the groove wall of the through groove.

[0025] On the other hand, this utility model provides a ring rolling mill, including the above-mentioned cone roller split mechanism, and also includes a second driving member, which is mounted on the frame and is used to drive the connecting rod to rotate.

[0026] Based on the above technical solutions, preferably, the second driving component includes a slide, a motor and a gear, wherein the connecting rod is provided with a toothed groove;

[0027] The slide is mounted on the frame;

[0028] The motor is slidably mounted on the slide block;

[0029] The gear is mounted on the main shaft of the motor, passes through the shaft, and meshes with the tooth groove.

[0030] Based on the above technical solutions, preferably, the connecting rod includes a first rod body and a second rod body, wherein one end of the first rod body is connected to the conical roller, and the other end is rotatably connected to the second rod body;

[0031] The end of the second rod furthest from the first rod is connected to the hydraulic nut.

[0032] On the other hand, this utility model provides a ring rolling mill: including the above-mentioned cone roller split mechanism.

[0033] The conical roller split mechanism and ring rolling mill of this utility model have the following advantages over the prior art:

[0034] (1) By setting the tapered roller and hydraulic nut at both ends of the connecting rod, the tapered roller can be tightened by the connecting rod by pressurizing the hydraulic nut, thereby fixing it to the rotating shaft; at the same time, the connecting rod and the tapered roller are connected by threaded engagement, and the hydraulic nut, as a pressure-applying component, will loosen the tapered roller after the pressure is released, thus making it easy to remove the tapered roller. It has the advantages of simple structure and convenient disassembly and assembly; at the same time, the hydraulic nut is located on the outside of this structure, which is convenient for inspection and maintenance, and can improve the convenience of application.

[0035] (2) In the hydraulic nut, the screw is set in a stepped shape and is provided with two sealing rings, so that oil can be injected and pressurized. After pressurization, the screw will drive the connecting rod to move, thereby tightening the cone roller; the hydraulic nut is also provided with fasteners, which can limit the hydraulic nut, thereby further ensuring the stability of the tensioning structure.

[0036] (3) The fastener is equipped with a first drive member and a push rod. After the hydraulic nut is adjusted to the position, the push rod can be driven by the first drive member to tighten and fix it. In this way, even if the hydraulic nut or oil supply pipeline suddenly depressurizes, the impact problem can be avoided under the support of the push rod, and the vibration of the connecting rod and the cone roller can be avoided to ensure the stability of the application.

[0037] (4) In the ring rolling mill of this utility model, the second driving component has a slide, a motor and a gear. When in use, one of them can drive the gear into the rotating shaft and mesh with the tooth groove on the connecting rod, so as to position the connecting rod, thereby making the engagement of the cone roller and the connecting rod more convenient. At the same time, the motor can drive the connecting rod to rotate through the gear, thereby realizing the thread engagement with the cone roller, so as to realize automated assembly and disassembly. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 This is a perspective view of the cone roller split mechanism of this utility model;

[0040] Figure 2 This is a structural diagram showing the connection between the connecting rod and the second driving component of the cone roller split mechanism of this utility model;

[0041] Figure 3 This is a structural diagram showing the separation of the connecting rod and the second driving component in the cone roller split mechanism of this utility model;

[0042] Figure 4 This is an assembly structure diagram of the hydraulic nut and fasteners of the cone roller split mechanism of this utility model;

[0043] Figure 5 This is a diagram showing the adjustment structure of the fasteners for the cone roller split mechanism of this utility model;

[0044] Figure 6 A structural diagram showing the through groove in the connecting rod of the cone roller split mechanism of this utility model;

[0045] In the diagram: 1. Frame; 2. Shaft; 3. Connecting rod; 31. First rod body; 32. Second rod body; 301. Through groove; 302. Gear groove; 4. Conical roller; 5. Hydraulic nut; 51. Fixing block; 52. Nut; 53. Screw; 54. Sealing ring; 501. Oil inlet; 6. Fastener; 61. First driving component; 62. Push rod; 63. Threaded cylinder; 64. Connecting frame; 65. Bearing seat; 7. Second driving component; 71. Slide; 72. Motor; 73. Gear. Detailed Implementation

[0046] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0047] like Figure 1 As shown, the cone roller split mechanism of this utility model includes a frame 1, a rotating shaft 2, a connecting rod 3, a cone roller 4, a hydraulic nut 5, and fasteners 6.

[0048] like Figures 1-3 As shown, the rotating shaft 2 is rotatably connected to the frame 1; the connecting rod 3 passes through the rotating shaft 2; the tapered roller 4 and the hydraulic nut 5 are respectively arranged at both ends of the connecting rod 3, and the tapered roller 4 and the connecting rod 3 are connected by threaded engagement; the fastener 6 is arranged on the hydraulic nut 5, and the fastener 6 is used to limit the stroke of the hydraulic nut 5.

[0049] As described above, during assembly, the connecting rod 3 is inserted into the rotating shaft 2, and the rotating shaft 2 passes through the hydraulic nut 5. Then, the conical roller 4 is connected to the connecting rod 3, and pressure is applied by the hydraulic nut 5 to tighten the connecting rod 3, thereby stably locking the conical roller 4 onto the rotating shaft 2, thus achieving the connection.

[0050] In this structure, the connecting rod 3 and the cone roller 4 are connected by a threaded connection. The hydraulic nut 5 acts as a pressure-applying component. After the pressure is released, the cone roller 4 will loosen, making it easy to remove the cone roller 4. This structure has the advantages of simple structure and convenient disassembly and assembly. At the same time, the hydraulic nut 5 is located on the outside of this structure, which facilitates continued inspection and maintenance and improves the convenience of application.

[0051] The hydraulic nut 5 is equipped with a fastener 6. After the hydraulic nut 5 is adjusted to the correct position, the fastener 6 is used to limit the stroke of the hydraulic nut 5. In this way, even if the hydraulic nut 5 or the oil supply pipeline suddenly depressurizes, the impact problem can be avoided under the limiting effect of the fastener 6, and the vibration of the connecting rod 3 and the cone roller 4 can be avoided to ensure the stability of the application.

[0052] like Figure 4 and Figure 5 As shown, the hydraulic nut 5 includes a fixing block 51, a nut 52, a screw 53, and a sealing ring 54. The fixing block 51 is connected to the rotating shaft 2; the nut 52 is connected to the fixing block 51; the screw 53 is inserted into the fixing block 51, and the screw 53 is threadedly engaged with the nut 52, and the screw 53 is sleeved with the connecting rod 3; the screw 53 has a stepped shaft structure, and the two stepped surfaces of the screw 53 are provided with sealing rings 54. The fixing block 51 has an oil injection port 501 that connects the gap between the two sealing rings 54.

[0053] As described above, in the hydraulic nut 5, the nut 52 is connected and fixed to the fixing block 51. The screw 53 is set in a stepped shape and is provided with two sealing rings 54. After oil is injected into the hydraulic nut 5 through the oil injection port 501, the hydraulic oil pushes the screw 53 to rotate under pressure, thereby driving the connecting rod 3 to move, which in turn can tighten the cone roller 4 and realize the installation and fixation of the cone roller 4.

[0054] Specifically, the connecting rod 3 is configured as a stepped shaft structure, so that the connecting rod 3 has a stepped support screw 53, thereby transmitting the tension of screw 53, and the connecting rod 3 and screw 53 are rotatably engaged;

[0055] Specifically, a tapered hole is provided at the end of the rotating shaft 2 to facilitate the guidance of the tapered roller 4, thereby positioning the tapered roller 4 and facilitating subsequent assembly.

[0056] like Figure 4 and Figure 5 As shown, the fastener 6 includes a first driving member 61 and a push rod 62. The first driving member 61 is disposed at the end of the connecting rod 3. The push rod 62 is connected to the movable end of the first driving member 61, and the push rod 62 is parallel to the connecting rod 3 and passes through the nut 52.

[0057] As described above, fastener 6 is used for limiting or positioning. Figure 5 As shown in the structure, after the screw 53 tightens the connecting rod 3, the first driving member 61 drives the push rod 62 to move so that the push rod 62 abuts against the fixed block 51, thereby ensuring the relative axial limit of the fixed block 51, the screw 53 and the connecting rod 3. In this way, even if the hydraulic nut 5 or the oil supply line suddenly depressurizes, the limiting action of the push rod 62 can avoid the impact problem and prevent the connecting rod 3 and the cone roller 4 from vibrating, so as to ensure the stability of the application.

[0058] Specifically, even if the hydraulic nut 5 experiences pressure relief, only the screw 53 will loosen, while the connecting rod 3 and fastener 6 will not move, thus ensuring structural stability.

[0059] like Figure 4 and Figure 5 As shown, the fastener 6 also includes a threaded cylinder 63 and a connecting bracket 64. The first driving component 61 is a motor. The threaded cylinder 63 is provided on the main shaft of the motor and on the push rod 62, and is threadedly engaged. The two ends of the connecting bracket 64 are each connected to a threaded cylinder 63.

[0060] As described above, the fastener 6 is equipped with a threaded cylinder 63 and a connecting frame 64, and the motor spindle and the push rod 62 are also equipped with threaded cylinders 63. When the motor rotates, since multiple threaded cylinders 63 are limited by the connecting frame 64, the motor spindle and the threaded cylinders 63 will move through the connecting frame 64 to drive the other threaded cylinders 63 and the push rod 62 to move. The push rod 62 and its threaded cylinders 63 only make linear displacement, thereby supporting the fixed block 51 to achieve the limitation.

[0061] In this structure, the push rod 62 and the threaded cylinder 63 are connected by threads to form an adjustable structure, which makes it easy to adjust the length of the push rod 62 inserted into the screw 53 to ensure that it has sufficient length to support the fixed block 51, thereby ensuring the stability of the application.

[0062] Specifically, two push rods 62 and two corresponding threaded cylinders 63 and connecting brackets 64 are provided, and they are connected to the threaded cylinders 63 on the motor spindle to ensure the stability of the structure.

[0063] like Figure 4 and Figure 6 As shown, the fastener 6 also includes a bearing seat 65, and the end of the connecting rod 3 is provided with a through groove 301; the first driving member 61 and the bearing seat 65 are fitted into the through groove 301, the bearing seat 65 is rotatably engaged with the movable end of the first driving member 61, and the side of the bearing seat 65 away from the first driving member 61 abuts against the groove wall of the through groove 301.

[0064] As described above, the first driving component 61 is a motor, and the bearing housing 65 is mounted on the main shaft of the motor. In this way, when the fastener 6 is subjected to force, the force will be transmitted to the connecting rod 3 through the bearing housing 65, thereby preventing damage to the motor.

[0065] Specifically, the through groove 301 is opened and extends radially along the connecting rod 3, thereby facilitating the fitting of the first drive member 61 and the bearing seat 65 into the through groove 301.

[0066] like Figures 1-3 As shown, the ring rolling mill of this utility model includes the above-mentioned cone roller split mechanism, and also includes a second driving member 7. The second driving member 7 is mounted on the frame 1 and is used to drive the connecting rod 3 to rotate.

[0067] As described above, in order to improve the convenience of connecting the conical roller 4 and the connecting rod 3, a second driving member 7 is provided. The second driving member 7 drives the connecting rod 3 to rotate, which will cause the end of the connecting rod 3 to be screwed into the conical roller 4, thereby achieving the connection. When it is necessary to disassemble the conical roller 4, the conical roller 4 is lifted by a crane, the circumferential limit of the conical roller 4 is maintained, and then the connecting rod 3 is rotated in the opposite direction.

[0068] like Figure 2 and Figure 3As shown, the second driving component 7 includes a slide 71, a motor 72, and a gear 73. The connecting rod 3 has a toothed groove 302. The slide 71 is mounted on the frame 1. The motor 72 is slidably mounted on the slide 71. The gear 73 is mounted on the main shaft of the motor 72, and the gear 73 passes through the rotating shaft 2 and meshes with the toothed groove 302.

[0069] As described above, the second drive component 7 is used to drive the connecting rod 3; in specific applications, the motor 72 moves by relying on the slide 71, and the connecting rod or cylinder can be used to drive the motor 72 to move.

[0070] When the motor 72 moves, it drives the gear 73 to move. The gear 73 enters the rotating shaft 2 and meshes with the tooth groove 302 on the connecting rod 3. This can axially limit the connecting rod 3 to ensure the stability of the position of the connecting rod 3. Then, the conical roller 4 is installed, and the motor 72 and the gear 73 drive the connecting rod 3 to rotate. The end of the connecting rod 3 will then be screwed into the conical roller 4.

[0071] After the connecting rod 3 is connected to the cone roller 4, the motor 72 moves on the slide 71 to bring the gear 73 out of the rotating shaft 2, thereby avoiding interference with the rotation of the rotating shaft 2 during operation.

[0072] In some embodiments, the second drive member 7 is not provided. In this case, by installing one end of the hydraulic nut 5, the connecting rod 3 is rotated to disengage the connecting rod 3 from the tapered roller 4.

[0073] like Figure 2 and Figure 3 As shown, the connecting rod 3 includes a first rod body 31 and a second rod body 32. One end of the first rod body 31 is connected to the tapered roller 4, and the other end is rotatably connected to the second rod body 32. The end of the second rod body 32 away from the first rod body 31 is connected to the hydraulic nut 5.

[0074] As described above, the connecting rod 3 is configured as two parts: a first rod body 31 and a second rod body 32. In this way, when the second driving member 7 is working, only the first rod body 31 is driven to rotate, so that it can be screwed into the tapered roller 4. Thus, the second rod body 32 does not need to rotate, which helps to reduce friction.

[0075] Specifically, the second rod 32 is circumferentially limited by the rotating shaft 2.

[0076] Specific implementation steps:

[0077] The assembly of the ring rolling mill of this utility model includes the following steps:

[0078] S1. Insert the connecting rod 3 into the rotating shaft 2;

[0079] S2. Adjust the motor 72 so that the gear 73 enters the rotating shaft 2 and meshes with the tooth groove 302 of the connecting rod 3 to achieve axial positioning of the connecting rod 3;

[0080] S3. Insert the conical roller 4 into the rotating shaft 2, and then drive the gear 73 to rotate through the motor 72, thereby driving the connecting rod 3 to rotate, so that the connecting rod 3 and the conical roller 4 are connected by screw thread.

[0081] S4. Slide the motor 72 to disengage the gear 73 from the rotating shaft 2;

[0082] S5. Oil is supplied to the hydraulic nut 5 through the oil inlet 501, and the screw 53 is forced to rotate by pressure, which in turn drives the connecting rod 3 to move, so as to tighten the cone roller 4.

[0083] S6. The first driving component 61 drives the push rod 62 to move, so that the push rod 62 presses against the fixing block 51, thereby achieving the stroke limit of the hydraulic nut 5.

[0084] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cone roll split mechanism characterized by: It includes a frame (1), a rotating shaft (2), a connecting rod (3), a tapered roller (4), a hydraulic nut (5), and fasteners (6), among which, The rotating shaft (2) is rotatably connected to the frame (1); The connecting rod (3) passes through the rotating shaft (2); The conical roller (4) and the hydraulic nut (5) are disposed opposite to each other at both ends of the connecting rod (3), and the conical roller (4) and the connecting rod (3) are connected by a threaded connection; The fastener (6) is disposed on the hydraulic nut (5) and the fastener (6) is used to limit the stroke of the hydraulic nut (5).

2. The cone roll split mechanism of claim 1, wherein: The hydraulic nut (5) includes a fixing block (51), a nut (52), a screw (53), and a sealing ring (54), wherein, The fixing block (51) is connected to the rotating shaft (2); The nut (52) is connected to the fixing block (51); The screw (53) is inserted into the fixing block (51), the screw (53) is threadedly engaged with the nut (52), and the screw (53) is sleeved with the connecting rod (3); The screw (53) has a stepped shaft structure, and the sealing rings (54) are provided on the two stepped surfaces of the screw (53). The fixing block (51) has an oil injection port (501) that connects the gap between the two sealing rings (54).

3. The cone roll split mechanism of claim 2, wherein: The fastener (6) includes a first driving member (61) and a push rod (62), wherein, The first driving member (61) is disposed at the end of the connecting rod (3); The push rod (62) is connected to the movable end of the first drive member (61), the push rod (62) is parallel to the connecting rod (3) and passes through the nut (52).

4. The cone roll split mechanism of claim 3, wherein: The fastener (6) further includes a threaded cylinder (63) and a connecting bracket (64), wherein the first driving component (61) is a motor. One threaded cylinder (63) is provided on the main shaft of the motor and one on the push rod (62), and they are threaded together. Each end of the connecting frame (64) is connected to one of the threaded cylinders (63).

5. The cone roll split mechanism of claim 4, wherein: The fastener (6) also includes a bearing seat (65), and the end of the connecting rod (3) is provided with a through groove (301); The first driving member (61) and the bearing seat (65) are fitted into the through groove (301). The bearing seat (65) is rotatably engaged with the movable end of the first driving member (61), and the side of the bearing seat (65) away from the first driving member (61) abuts against the groove wall of the through groove (301).

6. A roller ring machine characterized by: The device includes the cone roller split mechanism as described in claim 5, and also includes a second drive member (7), which is disposed on the frame (1) and is used to drive the connecting rod (3) to rotate.

7. The roller ring machine of claim 6, wherein: The second driving component (7) includes a slide (71), a motor (72), and a gear (73), wherein, The connecting rod (3) is provided with a toothed groove (302); The slide (71) is mounted on the frame (1); The motor (72) is slidably mounted on the slide (71); The gear (73) is mounted on the main shaft of the motor (72), and the gear (73) passes through the rotating shaft (2) and meshes with the tooth groove (302).

8. The roller ring machine of claim 7, wherein: The connecting rod (3) includes a first rod body (31) and a second rod body (32), wherein, One end of the first rod (31) is connected to the conical roller (4), and the other end is rotatably connected to the second rod (32); The end of the second rod (32) away from the first rod (31) is connected to the hydraulic nut (5).

9. A roller ring machine characterized by: Includes the cone roller split mechanism as described in any one of claims 1 to 5.

Images