Quick shaft lever replacing device

Abstract

The utility model relates to the technical field of machinery, in particular to a quick shaft lever replacing device which comprises a shell, a connecting rod, a shaft lever, a clamping structure, a driving structure and a supporting structure, a limiting column is fixedly connected to the interior of one end of the shell, and the connecting rod is slidably connected to the interior of the limiting column; a clamping structure used for clamping the shaft rod is installed at the end, away from the limiting column, of the connecting rod and comprises clamping blocks and first springs, the clamping blocks are symmetrically and rotationally connected to the side, away from the limiting column, of the connecting rod, the first springs are symmetrically installed between the two clamping blocks, and the two ends of the first springs are fixedly connected with the two clamping blocks correspondingly; a driving structure used for driving the clamping blocks to move in the axis direction of the connecting rod is installed in the shell, a supporting structure used for supporting the shell is installed on the outer wall of the shell, and the quick shaft rod replacing device has the advantages that multiple functions are integrated, the replacing efficiency is improved, and carrying and storage are convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical technical field especially relates to a shaft rod quick replacement device. BACKGROUND

[0002] The shaft rod is indispensable part in mechanical transmission, has multiple effects such as energy transmission, support and positioning, adaptability and flexibility, in mechanical automation and manufacturing industry, the shaft rod as the key component of transmission and support, its replacement efficiency and stability are crucial to the operation of whole production line,

[0003] The existing shaft rod replacement mode often needs manual disassembly and installation, when the shaft rod inserted in the inside of machine is pulled out, usually first the support frame of tool is set in the machine side, then the corresponding shaft pulling tool is selected, the clamping assembly of shaft pulling tool clamps one end of the shaft rod, then through hand crank, the threaded rod is rotated, the threaded rod is supported by the support frame, the support frame exerts the force away from the machine on the threaded rod, prevents the threaded rod from moving in the direction close to the machine in the process of rotation, the threaded rod pulls the shaft rod by rotating, and the shaft rod is pulled out, which often leads to time-consuming and laborious, and low shaft rod replacement efficiency, in addition, this tool can only disassemble the shaft rod, when the shaft rod needs to be installed, the corresponding installation tool needs to be used, which not only prolongs the shaft rod replacement time, but also brings inconvenience for the carrying tool of operating personnel and the storage of tool.

[0004] Therefore, it is necessary to provide a new shaft rod quick replacement device to solve the above technical problems. UTILITY MODEL CONTENTS

[0005] To solve the above technical problems, the utility model provides a kind of shaft rod quick replacement device.

[0006] The shaft rod quick replacement device provided by the utility model includes: a shell, a connecting rod, a shaft rod, a clamping structure, a driving structure and a supporting structure, a limiting column is fixedly connected inside one end of the shell, the connecting rod is slidably connected inside the limiting column, a clamping structure for clamping the shaft rod is installed at the end of the connecting rod away from the limiting column, the clamping structure includes: a clamping block and a first spring, the clamping block is symmetrically rotatably connected on the side of the connecting rod away from the limiting column, the first spring is symmetrically installed between the two clamping blocks, the two ends of the first spring are fixedly connected with the two clamping blocks respectively, the driving structure for driving the clamping block to move along the axis direction of the connecting rod is installed inside the shell, and the supporting structure for supporting the shell is installed on the outer wall of the shell.

[0007] Preferably, the clamping structure further includes: a fixing ring, a pressing column, and a second spring. The fixing ring is fixedly connected to one end of the connecting rod near the clamping block. The pressing column is sleeved on the outer wall of the connecting rod. The second spring is installed at equal distances between the pressing column and the fixing ring. One end of the second spring is fixedly connected to the fixing ring, and the other end of the second spring is fixedly connected to the pressing column.

[0008] Preferably, the drive structure includes: an external spline, a motor, and a threaded rod. The end of the connecting rod away from the clamping block is fixedly connected to the external spline. The motor is fixedly connected inside the housing. The output shaft of the motor is fixedly connected to the threaded rod, and the threaded rod is threadedly connected to the inner wall of the connecting rod.

[0009] Preferably, the support structure includes: a support frame, a first support block, a bolt, a second support block, and a nut. The support frame is symmetrically fixedly connected to the outer wall of one end of the housing. The first support block is rotatably connected to the end of the support frame away from the housing. The bolt is symmetrically rotatably connected to the inside of one end of the support frame. The second support block is sleeved on the end of the bolt away from the support frame. The nut is threadedly connected to the end of the bolt away from the support frame.

[0010] Preferably, the inner wall of the limiting post is provided with an inner spline, and the outer spline is slidably connected within the inner spline.

[0011] Preferably, the end of the extrusion column away from the fixed ring has a frustum-shaped groove that mates with the two clamping blocks, and the end of the extrusion column near the fixed ring has a cylindrical groove.

[0012] Preferably, a switch is slidably connected to one side of the housing, and the switch is electrically connected to the motor.

[0013] Preferably, a battery is inserted into the bottom of the casing, and a charging port is provided on the bottom of the casing on the side of the battery.

[0014] Compared with related technologies, the quick-change shaft device provided by this utility model has the following advantages:

[0015] Achieve multi-functional integration:

[0016] This device not only has the function of disassembling the shaft, but also achieves the quick installation of the shaft through the ingenious design of the fixing structure. This multi-functional integrated design allows operators to replace the shaft without having to carry multiple tools, which saves space and facilitates operation.

[0017] Improve replacement efficiency:

[0018] The device drives the threaded rod to rotate via a motor, which in turn moves the connecting rod and the clamping block on one side along the limiting post, enabling the quick removal and insertion of the shaft. Compared with traditional manual shaft removal tools, this automated operation significantly shortens the shaft replacement time and improves work efficiency.

[0019] Easy to carry and store:

[0020] The device is compact, small in size, lightweight, and has an integrated design, making it easy for operators to carry and store. In addition, the battery and charging port at the bottom of the casing allow the device to be used without an external power source, further improving its portability and practicality. Attached Figure Description

[0021] Figure 1 A schematic diagram of the quick-change shaft device provided by this utility model;

[0022] Figure 2 for Figure 1 The diagram shows the internal structure of the shell.

[0023] Figure 3 for Figure 1 The diagram shows the structure of the fixed structure.

[0024] The following are the labels in the diagram: 1. Housing; 2. Limiting post; 3. Connecting rod; 4. Clamping block; 5. First spring; 6. Fixing ring; 7. Extrusion post; 8. Second spring; 9. External spline; 10. Motor; 11. Threaded rod; 12. Support frame; 13. First support block; 14. Bolt; 15. Second support block; 16. Nut; 17. Internal spline; 18. Switch; 19. Battery; 20. Charging port. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0026] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0027] Please see Figures 1 to 3A quick-change device for a shaft includes: a housing 1, a connecting rod 3, a shaft, a clamping structure, a driving structure, and a supporting structure. A limiting post 2 is fixedly connected to one end of the housing 1. The connecting rod 3 is slidably connected inside the limiting post 2. A shaft is provided on one side of the connecting rod 3. A clamping structure for clamping the shaft is installed at the end of the connecting rod 3 away from the limiting post 2. A driving structure for driving a clamping block 4 to move along the axial direction of the connecting rod 3 is installed inside the housing 1. A supporting structure for supporting the housing 1 is installed on the outer wall of the housing 1. The supporting structure includes... The shell 1 consists of a support frame 12, a first support block 13, a bolt 14, a second support block 15, and a nut 16. The support frame 12 is symmetrically fixed to the outer wall of one end of the shell 1. The first support block 13 is rotatably connected to the end of the support frame 12 away from the shell 1. The bolt 14 is symmetrically rotatably connected to the inside of one end of the support frame 12. The second support block 15 is sleeved on the end of the bolt 14 away from the support frame 12. The nut 16 is threaded to the end of the bolt 14 away from the support frame 12. A battery 19 is inserted into the bottom of the shell 1. A charging port 20 is opened on the side of the battery 19 at the bottom of the shell 1.

[0028] It should be noted that the cooperation of bolt 14 and nut 16 can push the second support block 15 towards the first support block 13 to complete the clamping of the machine, thereby achieving the function of fixing the support frame 12. Battery 19 allows the device to be used without external power supply, and the charging port allows the device to be used with external power supply.

[0029] Please see Figure 1 and Figure 3 The clamping structure includes: clamping blocks 4, first springs 5, fixing rings 6, extrusion columns 7, and second springs 8. The clamping blocks 4 are symmetrically rotatably connected to the side of the connecting rod 3 away from the limiting column 2. The first springs 5 ​​are symmetrically installed between the two clamping blocks 4. The two ends of the first springs 5 ​​are respectively fixedly connected to the two clamping blocks 4. The fixing ring 6 is fixedly connected to the end of the connecting rod 3 near the clamping blocks 4. The extrusion column 7 is sleeved on the outer wall of the connecting rod 3. The second springs 8 are installed at equal distances between the extrusion column 7 and the fixing ring 6. One end of the second spring 8 is fixedly connected to the fixing ring 6, and the other end of the second spring 8 is fixedly connected to the extrusion column 7. The end of the extrusion column 7 away from the fixing ring 6 has a frustum-shaped groove that cooperates with the two clamping blocks 4. The end of the extrusion column 7 near the fixing ring 6 has a cylindrical groove.

[0030] It should be noted that when the extrusion column 7 slides away from the clamping block 4, the extrusion column 7 releases the extrusion on the clamping block 4, and the first spring 5 separates the two clamping blocks 4, so as to realize quick insertion or removal of the shaft. The inner wall dimension of the side of the extrusion column 7 with the cylindrical groove is larger than the outer wall dimension of the fixing ring 6, so as to ensure that the extrusion column 7 will not be stuck by the fixing block when it slides.

[0031] Please see Figure 1 andFigure 2 The drive structure includes: an external spline 9, a motor 10 and a threaded rod 11. The end of the connecting rod 3 away from the clamping block 4 is fixedly connected to the external spline 9. The motor 10 is fixedly connected inside the housing 1. The output shaft of the motor 10 is fixedly connected to the threaded rod 11. The threaded rod 11 is threadedly connected to the inner wall of the connecting rod 3. The inner wall of the limiting post 2 is provided with an internal spline 17. The external spline 9 is slidably connected in the internal spline 17. A switch 18 is slidably connected to one side of the housing 1. The switch 18 is electrically connected to the motor 10.

[0032] It should be noted that the external spline 9 is slidably connected to the internal spline 17, so that the connecting rod 3 can only slide along the internal spline 17 opened on the inner wall of the limiting post 2 and cannot rotate with the rotation of the threaded rod 11. The switch 18 has a three-position design. When the switch 18 is in the middle position, the motor 10 is off. When the switch 18 is in the lower position, the motor 10 rotates forward and the connecting rod 3 slides towards the motor 10 to remove the shaft. When the switch 18 is in the upper position, the motor 10 rotates in reverse and the connecting rod 3 slides away from the motor 10 to insert the shaft.

[0033] The working principle of the quick-change shaft device provided by this utility model is as follows:

[0034] Fixed support frame 12:

[0035] The first support block 13 is pressed against the clamping plate on one side of the machine. The second support block 15 is rotated so that it is in the same direction as the first support block 13. The nut 16 is rotated with a hex wrench to press the second support block 15 so that the second support block 15 is close to the first support block 13. The first support block 13 and the second support block 15 cooperate to clamp the clamping plate on one side of the machine. When the two sets of first support blocks 13 and second support blocks 15 are completely clamped to the clamping plate on one side of the machine, the support frame 12 is fixed.

[0036] Initial state:

[0037] The switch 18 is located in the middle, the device is in the off state, the motor 10 is not powered, the connecting rod 3 and the clamping structure on one side are both located close to the motor 10, the clamping block 4 in the clamping structure is in the clamping state under the action of the extrusion column 7, and the support structure securely fixes the device to one side of the mechanical equipment through the cooperation of bolts 14 and nuts 16.

[0038] Replace the shaft:

[0039] The operator flips switch 18 upwards, starting motor 10 to rotate forward. Motor 10 drives threaded rod 11 to rotate, causing connecting rod 3 to move away from motor 10. Connecting rod 3 drives clamping block 4 closer to the old shaft. When clamping block 4 is about to contact the old shaft, the operator slides extrusion column 7 towards the side closer to housing 1. Extrusion column 7 compresses second spring 8, releasing the pressure on clamping block 4. Clamping block 4 separates under the action of first spring 5. After the old shaft enters the opening of clamping block 4, the extrusion block is released, second spring 8 returns to its original position, and extrusion block is pressed towards clamping block 4. Extrusion block limits clamping block 4. Switch 18 is then flipped downwards, starting motor 10 to rotate in the reverse direction. Motor 10 drives threaded rod 11 to rotate, causing connecting rod 3 to move closer to motor 10. Connecting rod 3 drives clamping block 4 closer to motor 10. 4. Move the old shaft closer to the motor 10. After the old shaft is disengaged from the machine, turn the switch 18 to the middle position to turn off the motor 10. The operator holds the old shaft with one hand and slides the extrusion column 7 towards the side closer to the housing 1 with the other hand. The extrusion column 7 compresses the second spring 8, releasing the pressure on the clamping block 4. The clamping block 4 separates under the action of the first spring 5. After the old shaft is removed, insert the new shaft into the opening of the clamping block 4, release the extrusion block, and the second spring 8 returns to its original position and presses the extrusion block towards the clamping block 4. The extrusion block limits the clamping block 4. Turn the switch 18 upward, and the motor 10 rotates in the forward direction. The motor 10 drives the connecting rod 3 away from the motor 10 by rotating the threaded rod 11. The connecting rod 3 drives the clamping block 4 away from the motor 10. The clamping block 4 drives the new shaft away from the motor 10 and inserts the new shaft into the machine.

[0040] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A quick-change device for a shaft, characterized in that, include: A housing (1) has a limit post (2) fixedly connected inside one end of the housing (1); The connecting rod (3) is slidably connected inside the limiting post (2); The clamping structure has a clamping structure for clamping the shaft at one end of the connecting rod (3) away from the limiting post (2). The clamping structure includes a clamping block (4) and a first spring (5). The clamping block (4) is symmetrically rotatably connected to the side of the connecting rod (3) away from the limiting post (2). The first spring (5) is symmetrically installed between the two clamping blocks (4). The two ends of the first spring (5) are respectively fixedly connected to the two clamping blocks (4). The drive structure is installed inside the housing (1) to drive the clamping block (4) to move along the axis of the connecting rod (3); Support structure: The outer wall of the shell (1) is equipped with a support structure for supporting the shell (1).

2. The quick-change shaft device according to claim 1, characterized in that, The clamping structure also includes: a fixing ring (6), a pressing column (7), and a second spring (8). The connecting rod (3) is fixedly connected to the fixing ring (6) at one end near the clamping block (4). The pressing column (7) is sleeved on the outer wall of the connecting rod (3). The second spring (8) is installed at equal distances between the pressing column (7) and the fixing ring (6). One end of the second spring (8) is fixedly connected to the fixing ring (6), and the other end of the second spring (8) is fixedly connected to the pressing column (7).

3. The quick-change shaft device according to claim 1, characterized in that, The drive structure includes: an external spline (9), a motor (10) and a threaded rod (11). The end of the connecting rod (3) away from the clamp (4) is fixedly connected to the external spline (9). The motor (10) is fixedly connected inside the housing (1). The output shaft of the motor (10) is fixedly connected to the threaded rod (11). The threaded rod (11) is threadedly connected to the inner wall of the connecting rod (3).

4. The quick-change shaft device according to claim 1, characterized in that, The support structure includes: a support frame (12), a first support block (13), a bolt (14), a second support block (15), and a nut (16). The support frame (12) is symmetrically fixedly connected to the outer wall of one end of the shell (1). The first support block (13) is rotatably connected to the end of the support frame (12) away from the shell (1). The bolt (14) is symmetrically rotatably connected to the inside of one end of the support frame (12). The second support block (15) is sleeved on the end of the bolt (14) away from the support frame (12). The nut (16) is threadedly connected to the end of the bolt (14) away from the support frame (12).

5. The quick-change shaft device according to claim 3, characterized in that, The inner wall of the limiting post (2) is provided with an inner spline (17), and the outer spline (9) is slidably connected in the inner spline (17).

6. The quick-change shaft device according to claim 2, characterized in that, The end of the extrusion column (7) away from the fixing ring (6) is provided with a frustum-shaped groove that cooperates with the two clamping blocks (4), and the end of the extrusion column (7) near the fixing ring (6) is provided with a cylindrical groove.

7. The quick-change shaft device according to claim 3, characterized in that, A switch (18) is slidably connected to one side of the housing (1), and the switch (18) is electrically connected to the motor (10).

8. The quick-change device for shafts according to claim 1, characterized in that, A battery (19) is inserted into the bottom of the housing (1), and a charging port (20) is provided on the bottom of the housing (1) on the side of the battery (19).

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