Anti-jamming multi-cylinder synchronous drive device

CN224706078UActive Publication Date: 2026-09-01TIANJIN FUFENG INTELLIGENT EQUIP MFG CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202522202291.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-17
Publication Date
2026-09-01
Estimated Expiration
2035-10-17

AI Technical Summary

Technical Problem

[0003]在液压缸中,通常采用同步液压马达来实现多缸同步驱动,同步液压马达通过内部的齿轮或柱塞分流器进行流量调节和均匀分配,确保多路油流的流量相等,然而,在实际使用过程中,液压缸的液压油在多次循环使用后,会携带金属和密封材料的磨屑,导致液压油品质下降,这些杂质进入同步液压马达内部,会造成齿轮或柱塞分流器的磨损,进而影响流量调节和分配的精度,最终导致多缸同步驱动出现卡滞现象,影响设备的正常运行

Benefits of technology

[0014]本实用新型通过设置的过滤组件,有效过滤液压油中的金属和密封材料磨屑,避免了杂质进入同步液压马达内部造成齿轮或柱塞分流器的磨损,从而保证了流量调节和分配的精度,防止了多缸同步驱动出现卡滞现象,确保了设备的正常运行,同时,过滤组件与同步驱动组件之间的连接设计合理,使得液压油的流通顺畅,进一步提高了装置的稳定性和可靠性,此外,过滤组件中的滤芯可更换,便于维护和保养,降低了使用成本。

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224706078U_ABST
    Figure CN224706078U_ABST
Patent Text Reader

Abstract

This utility model provides a multi-cylinder synchronous drive device to prevent jamming, relating to the field of multi-cylinder synchronous drive equipment. It includes a synchronous drive assembly for multi-cylinder synchronous drive, and a filter assembly comprising a filter cartridge, a top cover at the top of the filter cartridge, a filter element inside the filter cartridge, an oil outlet pipe at the top of the top cover, an oil inlet pipe on one side of the top cover, and a connecting pipe inside the top cover, with one end of the connecting pipe connected to the inner cavity of the filter element. This utility model, through its filter assembly, effectively filters metal and sealing material debris from the hydraulic oil, preventing impurities from entering the synchronous hydraulic motor and causing wear on gears or plunger distributors. This ensures the accuracy of flow regulation and distribution, prevents jamming in the multi-cylinder synchronous drive, and ensures the normal operation of the equipment. Furthermore, the reasonable connection design between the filter assembly and the synchronous drive assembly ensures smooth hydraulic oil flow, further improving the stability and reliability of the device.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the field of multi-cylinder synchronous drive equipment, specifically a multi-cylinder synchronous drive device for preventing jamming. Background Technology

[0002] A multi-cylinder synchronous drive device is a mechanical control device used to ensure that multiple hydraulic cylinders, pneumatic cylinders or electric cylinders maintain a high degree of consistency in position, speed and force during movement. Its core function is to solve the problem of asynchronous movement caused by manufacturing errors, uneven load or environmental interference. Through mechanical, hydraulic or electronic control means, this device can enable multiple drive units (hydraulic cylinders / pneumatic cylinders) to achieve precise synchronization of stroke, movement speed and output force, thereby avoiding equipment vibration, off-center load or structural damage caused by asynchrony. This device is widely used in industrial fields that require high-precision collaborative operation.

[0003] In hydraulic cylinders, synchronous hydraulic motors are typically used to achieve synchronous drive of multiple cylinders. The synchronous hydraulic motor regulates and distributes the flow rate evenly through internal gears or plunger distributors to ensure that the flow rate of multiple oil flows is equal. However, in actual use, after repeated cycles, the hydraulic oil in the hydraulic cylinder will carry metal and sealing material wear debris, leading to a decline in hydraulic oil quality. These impurities enter the synchronous hydraulic motor, causing wear on the gears or plunger distributors, which in turn affects the accuracy of flow regulation and distribution. Ultimately, this can lead to jamming in the synchronous drive of multiple cylinders, affecting the normal operation of the equipment.

[0004] In summary, this utility model provides a multi-cylinder synchronous drive device to prevent jamming, thereby solving the above-mentioned problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A multi-cylinder synchronous drive device for preventing jamming includes a synchronous drive assembly for synchronous driving of multiple cylinders, and a filter assembly including a filter cartridge, a top cover located at the top of the filter cartridge, a filter element located in the inner cavity of the filter cartridge, an oil outlet pipe located at the top of the top cover, an oil inlet pipe located on one side of the top cover, and a connecting pipe located in the inner cavity of the top cover, wherein one end of the connecting pipe is connected to the inner cavity of the filter element, and the other end of the connecting pipe is connected to the oil outlet pipe.

[0007] Furthermore, in this invention, the synchronous drive assembly includes a synchronous hydraulic motor, an oil inlet located at the center of the front of the synchronous hydraulic motor, and oil outlets located on both sides of the back of the synchronous hydraulic motor.

[0008] Furthermore, in this invention, both the oil inlet and outlet ports are connected to the internal cavity of the synchronous hydraulic motor, and the synchronous hydraulic motor uses a gear set for flow regulation.

[0009] Furthermore, in this utility model, the oil outlet pipe is connected to the synchronous hydraulic motor through the oil inlet interface, the oil inlet pipe is connected to the external oil supply pipe, and the other end of the oil inlet pipe extends through the inner cavity of the top cover.

[0010] Furthermore, in this utility model, the filter assembly also includes an internal thread formed at the lower end of the inner cavity of the top cover, an external threaded connecting post fixed to the top of the filter cartridge, and a drain pipe located at the bottom of the filter cartridge.

[0011] Furthermore, in this utility model, the end of the externally threaded connecting post away from the filter cylinder extends into the inner cavity of the top cover and engages with the internal thread, and the bottom of the top cover contacts the top of the filter cylinder.

[0012] Furthermore, in this utility model, the drain pipe is composed of a pipe and a valve and is connected to the inner cavity of the filter cartridge; the oil outlet pipe is fixed to the top of the top cover; and the connecting pipe is threadedly engaged with the filter element.

[0013] Beneficial effects: This utility model has the following beneficial effects:

[0014] This invention effectively filters metal and sealing material debris from hydraulic oil through a specially designed filter assembly, preventing impurities from entering the synchronous hydraulic motor and causing wear on gears or plunger distributors. This ensures the accuracy of flow regulation and distribution, prevents jamming in multi-cylinder synchronous drives, and guarantees the normal operation of the equipment. Furthermore, the reasonable connection design between the filter assembly and the synchronous drive assembly ensures smooth hydraulic oil flow, further improving the stability and reliability of the device. In addition, the filter element in the filter assembly is replaceable, facilitating maintenance and reducing operating costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the separated state structure of the filter component and the synchronous drive component of this utility model;

[0017] Figure 3 This is a cross-sectional structural diagram of the filter assembly of this utility model;

[0018] Figure 4 This is a schematic diagram of the connection structure between the filter element and the top cover of this utility model;

[0019] Figure 5 This is a schematic diagram of the connection structure between the connecting pipe and the top cover of this utility model;

[0020] Figure 6This is a cross-sectional structural diagram of the synchronous hydraulic motor of this utility model.

[0021] In the picture:

[0022] 100. Synchronous drive assembly; 110. Synchronous hydraulic motor; 120. Oil inlet port; 130. Oil outlet port; 200. Filter assembly; 210. Filter cartridge; 220. Top cover; 230. Filter element; 240. Oil outlet pipe; 250. Oil inlet pipe; 260. Connecting pipe; 270. Internal thread; 280. External thread connecting post; 290. Drain pipe. Detailed Implementation

[0023] To better understand the technical content of this utility model, specific embodiments are described below in conjunction with the accompanying drawings. Various aspects of this utility model are described in this disclosure with reference to the accompanying drawings, which illustrate numerous illustrative embodiments. The embodiments of this disclosure are not necessarily defined to include all aspects of this utility model. It should be understood that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in this utility model are not limited to any particular implementation. Furthermore, some aspects of this utility model can be used alone or in any suitable combination with other aspects disclosed in this utility model.

[0024] Example 1

[0025] like Figure 1-6 As shown, this is the first embodiment of the present invention. This embodiment provides a multi-cylinder synchronous drive device for preventing jamming, including a synchronous drive assembly 100 for synchronous driving of multiple cylinders, and a filter assembly 200, including a filter cartridge 210, a top cover 220 located at the top of the filter cartridge 210, a filter element 230 located in the inner cavity of the filter cartridge 210, an oil outlet pipe 240 located at the top of the top cover 220, an oil inlet pipe 250 located on one side of the top cover 220, and a connecting pipe 260 located in the inner cavity of the top cover 220. One end of the connecting pipe 260 is connected to the inner cavity of the filter element 230, and the other end of the connecting pipe 260 is connected to the oil outlet pipe 240.

[0026] like Figure 1-6As shown, by functionally coupling and integrating the filter assembly 200 with the synchronous drive assembly 100, a closed-loop protection is formed. External hydraulic oil containing impurities first enters the inlet pipe 250, then flows into the inner cavity of the filter cartridge 210, and then undergoes fine filtration through the filter element 230. After passing through the connecting pipe 260 and the outlet pipe 240, it finally enters the inlet port 120 of the synchronous hydraulic motor 110. This ensures that the hydraulic oil entering the synchronous hydraulic motor 110 must be filtered by the filter element 230, effectively blocking the possibility of contaminants such as metal shavings and sealing particles entering the gear set of the synchronous hydraulic motor 110. When the clean oil enters the synchronous hydraulic motor 110, it relies on the internal gear set to achieve precise flow distribution, thereby driving multiple hydraulic cylinders to perform synchronous actions, ensuring the stable operation and high efficiency of the system, effectively preventing jamming in multi-cylinder synchronous drive, and ensuring the normal operation of the equipment.

[0027] Example 2

[0028] Reference Figure 1-6 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0029] In this embodiment, the synchronous drive assembly 100 includes a synchronous hydraulic motor 110, an oil inlet 120 located at the center of the front of the synchronous hydraulic motor 110, and oil outlets 130 located on both sides of the back of the synchronous hydraulic motor 110.

[0030] Both the oil inlet port 120 and the oil outlet port 130 are connected to the inner cavity of the synchronous hydraulic motor 110, and the synchronous hydraulic motor 110 uses a gear set for flow regulation.

[0031] The oil outlet pipe 240 is connected to the synchronous hydraulic motor 110 through the oil inlet port 120, the oil inlet pipe 250 is connected to the external oil supply pipe, and the other end of the oil inlet pipe 250 extends into the inner cavity of the top cover 220.

[0032] The filter assembly 200 also includes an internal thread 270 formed at the lower end of the inner cavity of the top cover 220, an external threaded connecting post 280 fixed to the top of the filter cartridge 210, and a drain pipe 290 located at the bottom of the filter cartridge 210.

[0033] The end of the external threaded connecting post 280 away from the filter cartridge 210 extends into the inner cavity of the top cover 220 and engages with the internal thread 270. The bottom of the top cover 220 contacts the top of the filter cartridge 210.

[0034] The drain pipe 290 consists of pipes and valves and is connected to the inner cavity of the filter cartridge 210. The oil outlet pipe 240 is fixed to the top of the top cover 220. The connecting pipe 260 and the filter element 230 are engaged by threads.

[0035] like Figure 1-6As shown, when hydraulic oil flows from the external oil supply pipe into the inner cavity of the filter cartridge 210 through the oil inlet pipe 250, the filter element 230 can efficiently intercept solid particles and impurities in the oil, preventing them from entering the synchronous hydraulic motor 110. The filtered clean oil enters the oil outlet pipe 240 through the connecting pipe 260, and then flows into the inner cavity of the synchronous hydraulic motor 110 through the oil inlet port 120. The synchronous hydraulic motor 110 achieves even flow distribution through the precise meshing of the internal gear set, ensuring that multiple oil flows are synchronously delivered to each hydraulic cylinder.

[0036] When the filter element 230 accumulates a lot of impurities after long-term use, the dirt in the inner cavity of the filter cartridge 210 can be discharged by opening the drain pipe 290 valve. The filter element 230 and the connecting pipe 260 adopt a threaded engagement design, which facilitates quick disassembly and replacement. The top cover 220 and the filter cartridge 210 achieve a sealed connection through the engagement of the external threaded connecting post 280 and the internal thread 270, which not only ensures structural stability but also facilitates regular maintenance.

[0037] The synergistic effect of the filter assembly 200 and the synchronous drive assembly 100 effectively solves the jamming problem in multi-cylinder synchronous drive. The top cover 220 and the filter cartridge 210 are sealed by the meshing of the external threaded connecting column 280 and the internal thread 270, which facilitates regular disassembly, cleaning or replacement of the filter element 230. The bottom drain pipe 290 can discharge deposited impurities without stopping the machine, maintaining cleanliness.

[0038] In use, an external hydraulic pump feeds oil into the filter assembly 200 through the inlet pipe 250. The oil is filtered by the filter element 230 in the filter cartridge 210 to remove solid particles. The purified oil passes through the connecting pipe 260 and is output through the outlet pipe 240. The oil enters the synchronous hydraulic motor 110 through the inlet port 120. Inside the motor, the gear set precisely and evenly distributes the oil flow, which is then output to multiple actuators through two outlet ports 130. The multiple actuators receive an equal amount of oil, achieving synchronous movement of speed and displacement.

[0039] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.

[0040] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. A multi-cylinder synchronous drive device that prevents seizure, characterized by: include, Synchronous drive assembly (100) for multi-cylinder synchronous drive; The filter assembly (200) includes a filter cartridge (210), a top cover (220) located on the top of the filter cartridge (210), a filter element (230) located in the inner cavity of the filter cartridge (210), an oil outlet pipe (240) located on the top of the top cover (220), an oil inlet pipe (250) located on one side of the top cover (220), and a connecting pipe (260) located in the inner cavity of the top cover (220), wherein one end of the connecting pipe (260) is connected to the inner cavity of the filter element (230), and the other end of the connecting pipe (260) is connected to the oil outlet pipe (240).

2. The anti-jamming multi-cylinder synchronous drive device as described in claim 1, characterized in that: The synchronous drive assembly (100) includes a synchronous hydraulic motor (110), an oil inlet (120) located at the center of the front of the synchronous hydraulic motor (110), and oil outlets (130) located on both sides of the back of the synchronous hydraulic motor (110).

3. The anti-jamming multi-cylinder synchronous drive device as described in claim 2, characterized in that: Both the oil inlet (120) and the oil outlet (130) are connected to the inner cavity of the synchronous hydraulic motor (110), and the synchronous hydraulic motor (110) uses a gear set for flow regulation.

4. The anti-jamming multi-cylinder synchronous drive device as described in claim 1, characterized in that: The oil outlet pipe (240) is connected to the synchronous hydraulic motor (110) through the oil inlet port (120), the oil inlet pipe (250) is connected to the external oil supply pipe, and the other end of the oil inlet pipe (250) extends through the inner cavity of the top cover (220).

5. The anti-jamming multi-cylinder synchronous drive device as described in claim 1, characterized in that: The filter assembly (200) also includes an internal thread (270) formed at the lower end of the inner cavity of the top cover (220), an external threaded connecting post (280) fixed to the top of the filter cartridge (210), and a drain pipe (290) located at the bottom of the filter cartridge (210).

6. The anti-jamming multi-cylinder synchronous drive device as described in claim 5, characterized in that: The end of the external threaded connecting post (280) away from the filter cartridge (210) extends into the inner cavity of the top cover (220) and engages with the internal thread (270). The bottom of the top cover (220) contacts the top of the filter cartridge (210).

7. The anti-jamming multi-cylinder synchronous drive device as described in claim 5, characterized in that: The drain pipe (290) consists of pipes and valves and is connected to the inner cavity of the filter cartridge (210). The oil outlet pipe (240) is fixed to the top of the top cover (220). The connecting pipe (260) and the filter element (230) are engaged by threads.