A shock absorbing device having a buffering function and a control method thereof

Abstract

The application discloses a damping device with a buffering function and a control method thereof, and aims to provide a damping device with the buffering function, simple structure and strong practicability, and technical scheme points are that the damping device is connected with a buffering oil path through an upper damping body, buffering effect is formed when the upper damping body is stressed, and a cooperation adjustment structure is formed by left and right oil chamber structures, cooperation of double chambers, unidirectional hydraulic oil flow direction, and directional nature of the hydraulic oil are ensured, and the damping device is further matched with a buffering assembly, so that good structural stability and strong practicability are further improved, and the damping device has simple structure, and is suitable for the technical field of damping devices.

Description

Technical Field

[0001] This invention relates to the field of shock absorption device technology, and more specifically, to a shock absorption device with buffering function and its control method. Background Technology

[0002] Currently, vibration friction welding machines on the market generate significant vibrations during use, affecting the welding effect. Therefore, corresponding shock absorption devices have emerged. Traditional shock absorption devices are installed and connected to the cast iron head, and usually only use a mounting plate connected to the cast iron head in conjunction with a shock absorption pad. However, such shock absorption is not effective and cannot cope with the pressure under instantaneous force, causing the lifespan of the shock absorption device to be reduced, resulting in poor practicality. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a shock absorption device with buffering function, simple structure and high practicality.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a shock absorber with a buffer function, comprising a main body and a buffer oil circuit connected to the main body. The main body includes an upper shock absorber and a lower base. The buffer oil circuit includes a left oil chamber and a right oil chamber arranged in parallel to each other, an active piston disposed between the upper shock absorber and the left oil chamber, a driven piston disposed between the upper shock absorber and the right oil chamber, a connecting rod sequentially connecting the active and driven pistons, and a buffer assembly disposed between the left and right oil chambers and the active and driven pistons. Both the active and driven pistons are connected to the upper shock absorber.

[0005] The invention is further configured such that: the buffer assembly includes a fixed disc body disposed on the rod side of the active piston, a first hydraulic flow channel penetrating the piston rod of the active piston, a second hydraulic flow channel penetrating the piston rod of the driven piston, a connecting oil channel disposed on a connecting rod and sequentially connecting the first and second hydraulic flow channels, a transverse oil channel disposed on the fixed disc body and communicating with the first hydraulic flow channel, and a vertical oil channel disposed on the pressure plate and perpendicular to the transverse oil channel; the left oil chamber is provided with an oil outlet. The vertical oil passage is connected to the oil outlet. A one-way valve is provided on the inner wall of the rodless chamber side of the right oil chamber. The one-way valve is configured such that when the driven piston moves away from the one-way valve, the oil passage is open; otherwise, the oil passage is closed. The one-way valve is connected to the oil inlet chamber, and the oil outlet is connected to the oil return chamber. The buffer assembly also includes a reset assembly disposed in the rodless chambers of the left and right oil chambers for resetting the master and driven pistons. The rod chamber of the left oil chamber contains hydraulic oil, and the rodless chamber of the right oil chamber contains hydraulic oil.

[0006] The present invention is further configured such that: a plurality of sliding cavities are provided on the outer edge surface of the fixed disk body along the radial direction of the fixed disk body, each sliding cavity is disposed in a transverse oil passage, and a tension spring and a sliding slider are provided in the sliding cavity, the slider sliding towards the axis of the pressure plate under the tension of the tension spring.

[0007] The present invention is further configured such that: the reset assembly includes a reset spring disposed in the rodless cavity of the left and right oil chambers.

[0008] The present invention is further configured such that: the inner diameter of the first hydraulic flow channel is the same as the inner diameter of the second hydraulic flow channel and is larger than the inner diameter of the transverse oil channel, and the inner diameter of the transverse oil channel is larger than the inner diameter of the vertical oil channel.

[0009] The present invention is further configured such that each sliding cavity is circumferentially distributed on the fixed disk.

[0010] The present invention is further configured such that: the side of the slider that abuts against the inner wall of the left oil chamber is provided with an abutting structure, the abutting structure is inclined, and the length of the slider gradually increases along the positive moving direction of the active piston.

[0011] By adopting the above technical solution, the beneficial effects are as follows: 1. The present invention achieves a buffering effect when the upper shock absorber is subjected to force by connecting the upper shock absorber to the buffer oil circuit. Furthermore, by forming a matching adjustment structure between the left and right oil chambers, the matching of the two chambers and the unidirectional hydraulic oil flow direction ensure the directionality of the hydraulic oil. Moreover, the combination with the buffer component further improves the good structural stability, making it highly practical and simple in structure.

[0012] 2. The buffer assembly is configured to include a fixed disc on the rod side of the active piston, a first hydraulic flow channel penetrating the piston rod of the active piston, a second hydraulic flow channel penetrating the piston rod of the driven piston, a connecting oil channel on the connecting rod that sequentially connects the first and second hydraulic flow channels, a transverse oil channel on the fixed disc and communicating with the first hydraulic flow channel, and a vertical oil channel on the pressure plate that is perpendicular to the transverse oil channel. An oil outlet is provided on the left oil chamber, and the vertical oil channel communicates with the oil outlet. A one-way valve is provided on the inner wall of the rodless side of the right oil chamber. This one-way valve is configured such that when the driven piston moves away from the one-way valve, the oil passage is open; otherwise... The oil circuit is open circuit. The check valve is connected to the oil inlet chamber and the oil outlet is connected to the oil return chamber. When the upper shock absorber is under force, the hydraulic oil in the right oil chamber is under force and the check valve cannot discharge oil. The hydraulic oil then flows through the second oil pressure channel, the connecting oil channel and the first oil pressure channel, and enters the rod chamber of the left oil chamber through the transverse oil channel and the vertical oil channel. It then enters the oil return chamber through the oil outlet, forming a circuit. The buffer assembly also includes a reset assembly set in the rodless chamber of the left oil chamber and the right oil chamber for resetting the main and driven pistons. The reset assembly is used to reset the main and driven pistons after they are under force and also forms the first buffer. The structure is simple and practical.

[0013] 3. Furthermore, by opening several sliding cavities along the radial direction of the fixed plate on the outer edge of the fixed plate, each sliding cavity is located in the transverse oil passage. The sliding cavity contains a tension spring and a sliding slider. Under the tension of the tension spring, the slider slides towards the axis of the pressure plate. With the above structure, when the upper shock absorber is subjected to instantaneous force, because the instantaneous force intensity of the upper shock absorber is relatively large, the hydraulic oil will be diverted in the transverse oil passage. Part of the oil pressure will impact the slider, and the slider will rub against the left oil chamber, forming a second buffer, thereby improving the overall structural stability, making it highly practical and simple in structure.

[0014] A control method applicable to the above-mentioned shock absorber with buffer function includes the following steps: S1, when the upper shock absorber is subjected to force, the driving and driven pistons are subjected to force and apply pressure in the left and right oil chambers;

[0015] S2. The return spring forms the first buffer. After the hydraulic oil in the right oil chamber is subjected to force, the one-way valve cannot discharge oil. Then the hydraulic oil passes through the second oil pressure flow channel, the connecting oil channel and the second oil pressure flow channel, and enters the rod chamber of the left oil chamber through the horizontal oil channel and the vertical oil channel. Then it enters the return oil chamber through the oil outlet to form a circuit.

[0016] S3. When the instantaneous force of the upper shock absorber is too large, the hydraulic oil will be diverted in the transverse oil passage. Part of the oil pressure will impact the slider, and the slider will rub against the left oil chamber, forming a second buffer.

[0017] S4. After the upper shock absorber is subjected to force, the main and driven pistons will reset under the action of the return spring, the one-way valve will re-enter oil, and the hydraulic oil in the rod chamber of the left oil chamber will also be discharged from the oil outlet.

[0018] S5. Repeat steps S1-S4.

[0019] By adopting the above technical solution, the beneficial effects are as follows: the left and right oil chambers serve as the main buffer carriers, and together with the return spring, they form the first-stage buffering effect. Then, through the added sliding cavity structure, when the oil pressure is too high, some of the oil pressure will impact the slider in the sliding cavity, thus forming a secondary buffering effect between the slider and the inner wall of the cavity, improving the overall shock absorption effect, with strong stability and simple structure.

[0020] Furthermore, after the upper shock absorber is subjected to force, the main and driven pistons are reset by the return spring, which facilitates the next shock absorption operation. It has strong stability, and the connected oil inlet and outlet chambers form a hydraulic oil passage, which is highly practical and has a simple structure. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of an embodiment of a shock-absorbing device with buffering function and its control method according to the present invention.

[0022] In the attached diagram, the following labels are used: 1. Upper damper; 10. Left oil chamber; 11. Right oil chamber; 101. Active piston; 102. First hydraulic flow channel; 103. Oil outlet; 110. Driven piston; 111. Second hydraulic flow channel; 12. Connecting rod; 120. Connecting oil passage; 13. Fixed disc; 130. Transverse oil passage; 131. Vertical oil passage; 132. Sliding chamber; 133. Slider; 134. Tension spring; 2. Lower base; 3. One-way valve; 4. Oil inlet chamber; 5. Oil return chamber; 6. Reset assembly. Detailed Implementation

[0023] Reference Figure 1 The present invention provides a further description of an embodiment of a shock-absorbing device with buffering function and its control method.

[0024] For ease of explanation, spatial relative terms such as “up,” “down,” “left,” and “right” are used in the embodiments to describe the relationship of one element or feature shown in the figures relative to another element or feature. It should be understood that, in addition to the orientations shown in the figures, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figures is inverted, an element described as being “down” of other elements or features would be positioned “up” of those other elements or features. Therefore, the exemplary term “down” can encompass both up and down orientations. The device may be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0025] Moreover, relational terms such as “first” and “second” are used merely to distinguish one component from another that has the same name, without necessarily requiring or implying any such actual relationship or order between the components.

[0026] A shock-absorbing device with a buffering function includes a main body and a buffer oil circuit connected to the main body. The main body includes an upper shock absorber 1 and a lower base 2. The buffer oil circuit includes a left oil chamber 10 and a right oil chamber 11 arranged in parallel with each other, an active piston 101 disposed between the upper shock absorber 1 and the left oil chamber 10, a driven piston 110 disposed between the upper shock absorber 1 and the right oil chamber 11, a connecting rod 12 sequentially connecting the active and driven pistons, and a buffer assembly disposed between the left and right oil chambers 11 and the active and driven pistons 110. Both the active and driven pistons 110 are connected to the upper shock absorber 1. This invention achieves a buffering effect when the upper shock absorber 1 is subjected to force by connecting the upper shock absorber 1 to the buffer oil circuit. Furthermore, by forming a matching adjustment structure between the left and right oil chambers 11, the matching of the two chambers and the unidirectional hydraulic oil flow direction ensure the directionality of the hydraulic oil. Moreover, the combination with the buffer assembly further improves the good structural stability, making it highly practical and simple in structure.

[0027] The present invention is further configured such that the buffer assembly includes a fixed disc 13 disposed on the rod side of the active piston 101, a first hydraulic flow channel 102 penetrating the piston rod of the active piston 101, a second hydraulic flow channel 111 penetrating the piston rod of the driven piston 110, a connecting oil passage 120 disposed on the connecting rod 12 and sequentially connecting the first hydraulic flow channel 102 and the second hydraulic flow channel 111, and a transverse oil passage disposed on the fixed disc 13 and communicating with the first hydraulic flow channel 102. The system includes a transverse oil passage 130 and a vertical oil passage 131 mounted on the pressure plate and perpendicular to the transverse oil passage 130. The left oil chamber 10 has an oil outlet 103, which communicates with the vertical oil passage 131. A one-way valve 3 is mounted on the inner wall of the rodless chamber side of the right oil chamber 11. This one-way valve 3 is configured such that when the driven piston 110 moves away from the one-way valve 3, the oil path is open; otherwise, the oil path is closed. The one-way valve 3 is connected to the inlet chamber 4, and the outlet 103 is connected to the return chamber 5. (The last sentence appears to be incomplete and possibly refers to a buffer mechanism.) The assembly also includes a reset assembly 6 disposed in the rodless chamber of the left oil chamber 10 and the right oil chamber 11, used for resetting the driving and driven pistons 110. Hydraulic oil is contained in the rod chamber of the left oil chamber 10 and the rodless chamber of the right oil chamber 11. With this structure, when the upper shock absorber 1 is subjected to force, the hydraulic oil in the right oil chamber 11 is subjected to force, and the one-way valve 3 cannot discharge oil. The hydraulic oil then flows through the second hydraulic flow channel 111, the connecting oil passage 120, and the first hydraulic flow channel 102. The oil enters the rod chamber of the left oil chamber 10 through the transverse oil passage 130 and the vertical oil passage 131, and then enters the return oil chamber 5 through the oil outlet 103, forming a loop. The buffer assembly also includes a reset assembly 6, which is set in the rodless chamber of the left oil chamber 10 and the right oil chamber 11 and is used for resetting the main and driven pistons 110. The reset assembly 6 is used to reset the main and driven pistons 110 after they are subjected to force, and also has the effect of forming the first buffer. It has a simple structure and strong practicality.

[0028] The invention is further configured such that a plurality of sliding cavities 132 are formed on the outer edge surface of the fixed disk body 13 along the radial direction of the fixed disk body 13, each sliding cavity 132 being disposed within a transverse oil passage 130, and each sliding cavity 132 containing a tension spring 134 and a slidable slider 133, the slider 133 sliding towards the axis of the pressure plate under the tension of the tension spring 134. Furthermore, by forming a plurality of sliding cavities 132 along the radial direction of the fixed disk body 13 on the outer edge surface of the fixed disk body 13, and each sliding cavity 132 being disposed within a transverse oil passage 130... The sliding cavity 132 contains a tension spring 134 and a sliding slider 133. The slider 133 slides towards the axis of the pressure plate under the tension of the tension spring 134. With the above structure, when the upper shock absorber 1 is subjected to instantaneous force, because the instantaneous force intensity of the upper shock absorber 1 is relatively large, the hydraulic oil will be diverted in the transverse oil passage 130, and part of the oil pressure will impact the slider 133. The slider 133 will rub against the left oil chamber 10, forming a second buffer, thereby improving the overall structural stability, with strong practicality and simple structure.

[0029] The present invention is further configured such that the reset component 6 includes a reset spring disposed in the rodless cavity of the left and right oil chambers 11. With the above-mentioned structural configuration, the reset spring structure ensures a reset elastic support effect for the main and driven pistons 110, which has strong stability and simple structure. Of course, the reset component 6 can also be other elastic support components, such as elastic rubber columns.

[0030] The present invention is further configured such that the inner diameter of the first hydraulic flow channel 102 is the same as the inner diameter of the second hydraulic flow channel 111 and is larger than the inner diameter of the transverse oil channel 130. The inner diameter of the transverse oil channel 130 is larger than the inner diameter of the vertical oil channel 131. By adopting the above structural configuration, the tightening and pressure relief effect of hydraulic oil is achieved by controlling the inner diameter of the oil channels. It has strong stability, simple structure, and reduces impact.

[0031] The present invention is further configured such that each sliding cavity 132 is circumferentially distributed on the fixed disk 13. By adopting the above-mentioned structural configuration, the sliding cavities 132 are evenly distributed circumferentially on the fixed disk 13, which ensures the uniformity of force on the active piston 101, strong stability, and simple structure.

[0032] The present invention is further configured such that the side of the slider 133 that abuts against the inner wall of the left oil chamber 10 is provided with an abutting structure. The abutting structure is inclined, and the length of the slider 133 gradually increases along the positive moving direction of the active piston 101. By adopting the above-mentioned structural configuration, by setting the length of the slider 133 to gradually increase along the positive moving direction of the active piston 101, the abutting effect between the slider 133 and the inner wall of the chamber is improved, the friction between the two is increased, and the buffering effect on the upper shock absorber 1 is further improved. The structure is stable and simple.

[0033] A control method for the aforementioned shock-absorbing device with buffering function includes the following steps:

[0034] S1. When the upper shock absorber 1 is subjected to force, the driving and driven pistons 110 are subjected to force and apply pressure in the left and right oil chambers 11.

[0035] S2. The return spring forms the first buffer. After the hydraulic oil in the right oil chamber 11 is subjected to force, the one-way valve 3 cannot discharge oil. Then the hydraulic oil passes through the second oil pressure flow channel 111, the connecting oil channel 120 and the second oil pressure flow channel 111, and enters the rod chamber of the left oil chamber 10 through the transverse oil channel 130 and the vertical oil channel 131. Then it enters the return oil chamber 5 through the oil outlet 103 to form a circuit.

[0036] S3. When the instantaneous force of the upper shock absorber 1 is too large, the hydraulic oil will be diverted in the transverse oil passage 130, and part of the oil pressure will impact the slider 133. The slider 133 will rub against the left oil chamber 10, forming a second buffer.

[0037] S4. After the upper shock absorber 1 is subjected to force, the main and driven pistons will be reset under the action of the return spring, the one-way valve 3 will enter oil again, and the hydraulic oil in the rod chamber of the left oil chamber 10 will also be discharged from the oil outlet 103.

[0038] S5. Repeat steps S1-S4.

[0039] By adopting the above technical solution, the beneficial effects are achieved by using the left and right oil chambers 11 as the main buffer carriers, which, together with the reset spring, form the first-stage buffering effect. Then, through the added sliding cavity 132 structure, when the oil pressure is too high, some of the oil pressure will impact the slider 133 in the sliding cavity 132, thereby forming a secondary buffering effect between the slider 133 and the inner wall of the cavity, improving the overall shock absorption effect, with strong stability and simple structure.

[0040] Furthermore, after the upper shock absorber 1 is subjected to force, the main and driven pistons are reset by the return spring, which facilitates the next shock absorption operation. It has strong stability, and the connected oil inlet chamber 4 and oil outlet chamber form a hydraulic oil passage. It is highly practical and has a simple structure.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any ordinary changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention should be included within the protection scope of the present invention.

Claims

1. A shock-absorbing device with a buffering function, characterized in that, The system includes a main body and a buffer oil circuit connected to the main body. The main body includes an upper shock absorber (1) and a lower base (2). The buffer oil circuit includes a left oil chamber (10) and a right oil chamber (11) arranged parallel to each other, an active piston (101) disposed between the upper shock absorber (1) and the left oil chamber (10), a driven piston (110) disposed between the upper shock absorber (1) and the right oil chamber (11), a connecting rod (12) sequentially connecting the active and driven pistons, and a connecting rod (12) disposed between the left and right oil chambers. A buffer assembly is provided between the right oil chamber (11) and the driving and driven pistons (110). Both the driving and driven pistons (110) are connected to the upper shock absorber (1). The buffer assembly includes a fixed disc (13) disposed on the rod side of the driving piston (101), a first hydraulic flow channel (102) penetrating the piston rod of the driving piston (101), a second hydraulic flow channel (111) penetrating the piston rod of the driven piston (110), and a connecting rod (12) that is sequentially connected to the first hydraulic flow channel (102) and the second hydraulic flow channel (111). The two hydraulic flow channels (111) include a connecting oil passage (120), a transverse oil passage (130) located on the fixed plate (13) and connected to the first hydraulic flow channel (102), and a vertical oil passage (131) located on the pressure plate and perpendicular to the transverse oil passage (130). The left oil chamber (10) is provided with an oil outlet (103), and the vertical oil passage (131) is connected to the oil outlet (103). The right oil chamber (11) has a one-way valve (3) on the inner wall of the rodless chamber side. The one-way valve (3) is... When the driven piston (110) is far away from the check valve (3), the oil circuit is open; otherwise, the oil circuit is closed. The check valve (3) is connected to the oil inlet chamber (4), and the oil outlet (103) is connected to the oil return chamber (5). The buffer assembly also includes a reset assembly (6) disposed in the rodless chamber of the left oil chamber (10) and the right oil chamber (11) for resetting the driven piston (110). The rod chamber of the left oil chamber (10) contains hydraulic oil, and the rodless chamber of the right oil chamber (11) contains hydraulic oil.

2. The shock-absorbing device with buffering function according to claim 1, characterized in that, The outer edge of the fixed disc (13) is provided with a plurality of sliding cavities (132) arranged radially along the fixed disc (13). Each sliding cavity (132) is located in the transverse oil passage (130). The sliding cavity (132) contains a tension spring (134) and a sliding slider (133). The slider (133) slides towards the axis of the pressure plate under the tension of the tension spring (134).

3. A shock-absorbing device with buffering function according to claim 1, characterized in that, The reset assembly (6) includes a reset spring disposed in the rodless cavity of the left and right oil chambers (11).

4. A shock-absorbing device with buffering function according to claim 1, characterized in that, The inner diameter of the first hydraulic flow channel (102) is the same as the inner diameter of the second hydraulic flow channel (111) and is larger than the inner diameter of the transverse oil channel (130). The inner diameter of the transverse oil channel (130) is larger than the inner diameter of the vertical oil channel (131).

5. A shock-absorbing device with buffering function according to claim 2, characterized in that, Each of the sliding cavities (132) is circumferentially distributed on the fixed disk (13).

6. A shock-absorbing device with buffering function according to claim 2, characterized in that, The slider (133) has an abutting structure on the side that abuts against the inner wall of the left oil chamber (10). The abutting structure is inclined, and the length of the slider (133) gradually increases along the positive moving direction of the active piston (101).

7. A control method for a shock-absorbing device with buffering function as described in any one of claims 1-6, characterized in that, The steps include the following: S1, when the upper shock absorber (1) is subjected to force, the driving and driven pistons (110) are subjected to force and pressure is applied in the left and right oil chambers (11); S2. The return spring forms the first buffer. After the hydraulic oil in the right oil chamber (11) is subjected to force, the one-way valve (3) cannot discharge oil. Then the hydraulic oil passes through the second oil pressure channel (111), the connecting oil channel (120) and the first oil pressure channel (102), and enters the rod chamber of the left oil chamber (10) through the transverse oil channel (130) and the vertical oil channel (131). Then it enters the return oil chamber (5) through the oil outlet (103) to form a circuit. S3. When the instantaneous force of the upper shock absorber (1) is too large, the hydraulic oil will be diverted in the transverse oil passage (130), and part of the oil pressure will impact the slider (133). The slider (133) will rub against the left oil chamber (10), forming a second buffer. S4. After the upper shock absorber (1) is subjected to force, the main and driven pistons will be reset under the action of the return spring, the one-way valve (3) will be filled with oil again, and the hydraulic oil in the rod chamber of the left oil chamber (10) will also be discharged from the oil outlet (103); S5. Repeat steps S1-S4.

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