Multi-bank cylinder synchronous anti-rod breakage structure

Abstract

The application relates to a multi-cylinder synchronous anti-rod breaking structure, and belongs to the mechanical transmission and protection field. The multi-cylinder synchronous anti-rod breaking structure comprises at least two cylinders, a connecting block arranged at the end of a cylinder piston rod, and a wear-resistant bushing arranged on the connecting block. A through hole is arranged on the connecting block for the cylinder piston rod to pass through. The outer ring of the wear-resistant bushing is embedded on the inner wall of the through hole and is in interference fit with the connecting block. The inner ring of the wear-resistant bushing is in clearance fit with the outer wall of the cylinder piston rod. The cylinder piston rod is elastically connected with the connecting block, and is used for buffering the axial movement of the cylinder piston rod. The application has the effect of prolonging the service life of the multiple cylinders during synchronous operation.

Description

Technical Field

[0001] This application relates to the field of mechanical transmission and protection, and in particular to a structure for preventing the breakage of multiple cylinder synchronous rods. Background Technology

[0002] In numerous industrial fields such as machinery manufacturing and automated production, cylinders, as common power actuators, play a crucial role. They convert pneumatic energy into mechanical energy, enabling linear reciprocating motion, and are widely used in various mechanical equipment, greatly improving production efficiency and automation. With the continuous development of industrial technology, the requirements for the precision, stability, and reliability of equipment are becoming increasingly stringent, leading to a growing number of scenarios where multiple cylinders work together to meet more complex production needs.

[0003] Currently, in applications where multiple cylinders are simultaneously connected to components and move vertically, the traditional solution is to rigidly connect multiple cylinders to the components, relying on the vertical extension and retraction of the cylinders to drive the component's movement. This method is simple and direct, and can meet basic operational requirements to a certain extent. Some equipment also uses a control system to control the movement of multiple cylinders, such as using PLC programming to set the sequence and timing of cylinder actions to ensure the synchronization of the vertical movement of multiple cylinders as much as possible.

[0004] However, although multiple cylinders operate according to the same PLC programming, errors can still occur, making it difficult to completely guarantee the synchronization of their up-and-down movements. If discrepancies occur, tension will build up between the cylinders. Over prolonged operation, this internal stress can cause the cylinder piston rods to break, and also deform the entire frame. As the frame deformation intensifies, the frequency of cylinder rod breakage increases, severely impacting the normal operation and lifespan of the equipment. Utility Model Content

[0005] To improve the service life of multiple cylinders operating synchronously, this application provides a multi-stage cylinder synchronization anti-rod fracture structure.

[0006] The multi-stage cylinder synchronization rod anti-fracture structure provided in this application adopts the following technical solution: A multi-cylinder synchronous anti-rod fracture structure includes at least two cylinders, a connecting block disposed at the end of the cylinder piston rod, and a wear-resistant bushing disposed on the connecting block. The connecting block has a through hole for the cylinder piston rod to pass through. The outer ring of the wear-resistant bushing is embedded in the inner wall of the through hole and is interference-fitted with the connecting block. The inner ring of the wear-resistant bushing is clearance-fitted with the outer wall of the cylinder piston rod. The cylinder piston rod is elastically connected to the connecting block to buffer the axial movement of the cylinder piston rod.

[0007] By adopting the above technical solution, multiple cylinders operate according to the same PLC programming. During operation, the wear-resistant bushing outer ring has an interference fit with the connecting block, while the inner ring has a clearance fit with the outer wall of the cylinder piston rod. This lubricates the cylinder piston rod during movement, reducing wear. Simultaneously, the elastic connection between the cylinder piston rod and the connecting block buffers the axial movement of the cylinder piston rod. When the up-and-down movements of multiple cylinders are asynchronous, the elastic connection buffers the tearing force caused by this asynchrony, preventing the cylinder piston rod from tearing and breaking due to prolonged stress. This avoids cylinder piston rod tearing and breakage caused by asynchronous movement of multiple cylinders, reducing equipment failures, lowering the breakage frequency at the cylinder piston rod, and also preventing deformation of the entire frame due to prolonged internal stress, thus extending the equipment's service life.

[0008] Optionally, a wear-resistant sleeve is detachably connected to the end of the cylinder piston rod, and the inner ring of the wear-resistant bushing is clearance-fitted with the outer wall of the wear-resistant sleeve.

[0009] By adopting the above technical solution, the wear-resistant sleeve is relatively inexpensive and can replace the cylinder piston rod for sliding friction, which can further reduce the wear on the end of the cylinder piston rod. In addition, the wear-resistant sleeve has a detachable structure, which can be easily replaced when worn, thereby reducing the operating cost of the equipment.

[0010] Optionally, a movable ring is fixed at the end of the wear-resistant sleeve, and a movable cavity adapted to the movable ring is opened in the connecting block along the axial direction of the cylinder piston rod, and the movable ring can move within the movable cavity.

[0011] Optionally, a spring is provided inside the movable cavity, the spring is sleeved on the outer periphery of the cylinder piston rod, and the two ends of the spring abut against the connecting block and the movable ring, respectively.

[0012] By adopting the above technical solution, when the cylinder is lifted upwards, the movable ring moves within the movable cavity, preventing direct lifting of the components. This provides a buffer operating space, allowing for cushioning even under spring compression. The cylinders are then lifted together when other cylinders are activated. Similarly, when the cylinder is depressurized, it is also affected by the spring. The movement of the movable ring within the movable cavity achieves a buffering function during cylinder operation, preventing tearing caused by asynchronous operation of multiple cylinders, reducing damage to the cylinder piston rod, and lowering the frequency of cylinder rod breakage.

[0013] Optionally, the connecting block includes an upper component block and a lower component block, which are detachably connected by bolts.

[0014] By adopting the above technical solution, the connecting block includes an upper component block and a lower component block that are detachably connected by bolts. When the spring ages after long-term operation, the upper component block and the lower component block can be quickly opened to replace the spring.

[0015] Optionally, the inner wall of the wear-resistant sleeve is provided with an internal thread, and the end of the cylinder piston rod is provided with an external thread that matches the internal thread.

[0016] By adopting the above technical solution, during installation, the wear-resistant sleeve can be screwed onto the end of the cylinder piston rod to achieve the connection between the two; when it is necessary to replace the wear-resistant sleeve, it can be removed from the cylinder piston rod by screwing in the opposite direction. A new wear-resistant sleeve can be quickly replaced by screwing, without the need for complicated disassembly of the entire equipment.

[0017] Optionally, a screw-in reinforcing ring is fixed to the top of the wear-resistant sleeve.

[0018] By adopting the above technical solution, the screw-on reinforcing ring facilitates the rotation of the wear-resistant sleeve and also strengthens the top of the wear-resistant sleeve, making it less prone to cracking from frequent impacts.

[0019] Optionally, both the wear-resistant bushing and the wear-resistant sleeve are made of composite ceramic matrix material.

[0020] By adopting the above technical solution, the wear-resistant bushing and wear-resistant sleeve are made of composite ceramic matrix material, which gives the wear-resistant bushing and wear-resistant sleeve good wear resistance and can reduce the frequency of maintenance and replacement of wear-resistant bushing or wear-resistant sleeve.

[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. When multiple cylinders move up and down asynchronously, the elastic connection can buffer the tearing force caused by this asynchronous movement, preventing the cylinder piston rod from tearing and breaking due to prolonged stress. This avoids the problem of cylinder piston rod tearing and breakage caused by asynchronous movement of multiple cylinders, reduces equipment failure, lowers the breakage frequency at the cylinder piston rod, and also avoids deformation of the entire frame caused by prolonged internal stress, thus extending the service life of the equipment. 2. Wear-resistant sleeves are relatively inexpensive and can replace cylinder piston rods for sliding friction, which can further reduce wear on the end of the cylinder piston rod. In addition, wear-resistant sleeves have a detachable structure, which can be easily and quickly replaced when worn, thereby reducing equipment operating costs. 3. When the cylinder is lifted upwards, the movable ring moves within the movable cavity, preventing direct lifting of the assembly. This provides a buffer operating space, allowing for cushioning even under spring compression. The cylinders are then lifted together when other cylinders are activated. By utilizing the movement of the movable ring within the movable cavity, a buffering function is achieved during cylinder operation, preventing tearing caused by asynchronous operation of multiple cylinders, reducing damage to the cylinder piston rod, and lowering the frequency of cylinder rod breakage. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the multi-cylinder synchronous anti-rod fracture structure in this application; Figure 2 This is a partial structural diagram showing the anti-fracture structure of multiple sets of cylinder synchronous rods; Figure 3 This is a schematic diagram showing the exploded structure of the connecting block; Figure 4 This is a partial sectional view representing the connecting block; Figure 5 This is a partial cross-sectional view showing the structure of a multi-cylinder synchronous anti-fracture rod.

[0023] Explanation of reference numerals in the attached drawings: 1. Cylinder; 2. Connecting block; 21. Upper component block; 22. Lower component block; 3. Wear-resistant bushing; 4. Through hole; 5. Wear-resistant sleeve; 6. Tightening reinforcing ring; 7. Movable ring; 8. Movable cavity; 9. Spring. Detailed Implementation

[0024] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0025] This application discloses a multi-group cylinder synchronization rod anti-fracture structure. (Refer to...) Figure 1 and Figure 2 The multi-cylinder synchronous anti-rod fracture structure includes at least two cylinders 1, a connecting block 2, and a wear-resistant bushing 3. The connecting block 2 is located at the end of the piston rod of cylinder 1, and the wear-resistant bushing 3 is located on the connecting block 2. The connecting block 2 has a through hole 4 for the piston rod of cylinder 1 to pass through. The outer ring of the wear-resistant bushing 3 is embedded in the inner wall of the through hole 4 and has an interference fit with the connecting block 2 to ensure a tight connection between the wear-resistant bushing 3 and the connecting block 2, preventing it from loosening. The inner ring of the wear-resistant bushing 3 has a clearance fit with the outer wall of the piston rod of cylinder 1, allowing the piston rod of cylinder 1 to slide smoothly within the wear-resistant bushing 3. The piston rod of cylinder 1 is elastically connected to the connecting block 2 to buffer the axial movement of the piston rod of cylinder 1. Multiple cylinders 1 operate according to the same programming of PLC. When the up and down movements of multiple cylinders 1 are out of sync, the elastic connection can buffer the tearing force caused by this asynchrony, and prevent the shaft of cylinder 1 connecting rod from tearing and breaking due to long-term stress. This avoids the problem of tearing and breaking of cylinder 1 connecting rod shaft caused by the asynchronous movement of multiple cylinders 1, and reduces equipment failure.

[0026] Specifically, refer to Figures 3-5A wear-resistant sleeve 5 is detachably connected to the end of the piston rod of cylinder 1. The inner ring of the wear-resistant bushing 3 is clearance-fitted with the outer wall of the wear-resistant sleeve 5. The wear-resistant sleeve 5 is relatively inexpensive and replaces the piston rod of cylinder 1 for sliding friction, further reducing wear on the end of the piston rod. The inner wall of the wear-resistant sleeve 5 has internal threads, and the end of the piston rod of cylinder 1 has external threads that match the internal threads. The threaded connection enables detachment, facilitating the installation and removal of the wear-resistant sleeve 5 when it wears. Both the wear-resistant bushing 3 and the wear-resistant sleeve 5 are made of composite ceramic matrix material. Composite ceramic matrix material has advantages such as high hardness, wear resistance, and corrosion resistance, which can reduce the frequency of maintenance and replacement of the wear-resistant bushing 3 or the wear-resistant sleeve 5. A screw-in reinforcing ring 6 is fixed to the top of the wear-resistant sleeve 5. The screw-in reinforcing ring 6 serves two purposes: firstly, to facilitate the rotation of the wear-resistant sleeve 5; and secondly, to reinforce the top of the wear-resistant sleeve 5, making it less prone to cracking from frequent impacts.

[0027] Specifically, refer to Figure 4 and Figure 5 A movable ring 7 is fixed to the end of the wear-resistant sleeve 5. A movable cavity 8, adapted to the movable ring 7, is formed within the connecting block 2 along the axial direction of the piston rod of the cylinder 1. The movable ring 7 can move within the movable cavity 8. The piston rod of the cylinder 1 is elastically connected to the connecting block 2 via a spring 9. The spring 9 is sleeved on the outer circumference of the piston rod of the cylinder 1 and located within the movable cavity 8. Both ends of the spring 9 abut against the connecting block 2 and the movable ring 7, respectively. Alternatively, a rubber buffer pad can be used instead of the spring 9 for the elastic connection. The rubber buffer pad has good elasticity and cushioning performance, and can also buffer the axial movement of the piston rod of the cylinder 1.

[0028] When cylinder 1 is lifted upwards, the movable ring 7 has a certain buffer operating space within the movable cavity 8, preventing it from immediately lifting the component. Influenced by spring 9, although there is a compression effect, it is buffered. When the other cylinder 1 is lifted by sensing, they are lifted together. When compressed downwards, it is also affected by spring 9. Spring 9 operates together with connecting block 2, and is not directly related to wear-resistant bushing 3. Spring 9 is subjected to elastic force, and axial stretching achieves buffering.

[0029] Reference Figure 4 and Figure 5 The connecting block 2 includes an upper component block 21 and a lower component block 22, which are detachably connected by bolts. If the spring 9 ages due to prolonged operation, it can be quickly replaced by opening the upper component block 21 and the lower component block 22.

[0030] The implementation principle of the multi-cylinder synchronous anti-rod fracture structure in this application embodiment is as follows: This multi-cylinder synchronous anti-rod fracture structure, through the inclusion of components such as wear-resistant bushings 3, wear-resistant sleeves 5, movable rings 7, and springs 9, achieves buffering of the axial movement of the piston rod of cylinder 1. When multiple cylinders 1 move asynchronously, the extension and contraction deformation of spring 9 absorbs excess energy, preventing tearing forces between multiple cylinders 1, thereby protecting the piston rod of cylinder 1 from tearing, reducing the deformation of the entire frame, lowering the fracture frequency of cylinder 1 rods, and improving the normal operating time and service life of the equipment. Simultaneously, the detachable design of the wear-resistant sleeve 5 facilitates component replacement and reduces maintenance costs.

[0031] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A multi-cylinder synchronous anti-rod fracture structure, characterized in that, It includes at least two cylinders (1), a connecting block (2) disposed at the end of the piston rod of the cylinder (1), and a wear-resistant bushing (3) disposed on the connecting block (2). The connecting block (2) is provided with a through hole (4) through which the piston rod of the cylinder (1) passes. The outer ring of the wear-resistant bushing (3) is embedded in the inner wall of the through hole (4) and is press-fitted with the connecting block (2). The inner ring of the wear-resistant bushing (3) is clearance-fitted with the outer wall of the piston rod of the cylinder (1). The piston rod of the cylinder (1) is elastically connected to the connecting block (2) to buffer the axial movement of the piston rod of the cylinder (1).

2. The multi-cylinder synchronous anti-rod fracture structure according to claim 1, characterized in that, The piston rod end of the cylinder (1) is detachably connected to a wear-resistant sleeve (5), and the inner ring of the wear-resistant bushing (3) is clearance-fitted with the outer wall of the wear-resistant sleeve (5).

3. The multi-cylinder synchronous anti-rod fracture structure according to claim 2, characterized in that, The wear-resistant sleeve (5) has a movable ring (7) fixed at its end. The connecting block (2) has a movable cavity (8) that is adapted to the movable ring (7) along the axial direction of the piston rod of the cylinder (1). The movable ring (7) can move within the movable cavity (8).

4. The multi-cylinder synchronous anti-rod fracture structure according to claim 3, characterized in that, A spring (9) is provided inside the movable cavity (8). The spring (9) is sleeved on the outer periphery of the piston rod of the cylinder (1). The two ends of the spring (9) abut against the connecting block (2) and the movable ring (7) respectively.

5. The multi-cylinder synchronous anti-rod fracture structure according to claim 4, characterized in that, The connecting block (2) includes an upper component block (21) and a lower component block (22), which are detachably connected by bolts.

6. The multi-cylinder synchronous anti-rod fracture structure according to claim 2, characterized in that, The inner wall of the wear-resistant sleeve (5) is provided with an internal thread, and the end of the piston rod of the cylinder (1) is provided with an external thread that matches the internal thread.

7. The multi-cylinder synchronous anti-rod fracture structure according to claim 6, characterized in that, The wear-resistant sleeve (5) is fixed with a screw-in reinforcing ring (6) at the top.

8. The multi-cylinder synchronous anti-rod fracture structure according to claim 2, characterized in that, Both the wear-resistant bushing (3) and the wear-resistant sleeve (5) are made of composite ceramic matrix material.

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