A suspension damping system

Abstract

A suspension damping system includes a shock absorber fixing frame, on which a suspension frame is rotatably mounted; one end of a damping spring is fixedly connected to the suspension frame, and the other end is fixedly connected to the shock absorber fixing frame; a positioning device is installed between the shock absorber fixing frame and the suspension frame, and the positioning device is located in the middle of the damping spring; the shock absorber fixing frame includes a bottom plate and side plates, and the side plates are fixedly installed on the side of the bottom plate; the suspension frame includes a connecting sleeve, on which a first leg and a second leg are provided, and a spring top plate is provided at the lower end of the second leg; a round hole is provided on the spring top plate; the lower end of the first leg is rotatably installed in the round hole on the outside of the side plate through a shaft. For the above technical problems, through the design of a damping shock absorber cylinder, the present invention uses the frictional damping between oil and the mechanism to achieve damping, improves the damping effect, and at the same time realizes rapid reset by means of multi-oil-way circulation, improves the damping frequency, and makes the damping effect better.

Description

Technical Field

[0001] The present invention relates to the field of shock-absorbing equipment, and particularly to a suspension shock-absorbing system. Background Art

[0002] The suspension system refers to the entire support system composed of springs and shock absorbers between the vehicle body and the tires. The functions that the suspension system should have are to support the vehicle body and improve the riding feeling. Different suspension settings will give the driver different driving experiences;

[0003] For the current self-propelled boom sprayer, due to its large size and the uneven ground during operation, a suspension system with shock-absorbing effect is required, which is mainly used for shock absorption to provide a better driving feeling. Summary of the Invention

[0004] In view of the above technical problems, the present invention designs a damping shock-absorbing cylinder, and uses the friction damping between oil and the mechanism to achieve shock absorption, improving the shock-absorbing effect. At the same time, for resetting, multi-oil passage circulation is utilized to achieve rapid reset, increasing the shock-absorbing frequency and making the shock-absorbing effect better.

[0005] The technical solution adopted by the present invention is: a suspension shock-absorbing system, including a shock absorber fixing frame, on which a suspension frame is rotatably installed; one end of a shock-absorbing spring is fixedly connected to the suspension frame, and the other end is fixedly connected to the shock absorber fixing frame; a positioning device is installed between the shock absorber fixing frame and the suspension frame, and the positioning device is located in the middle of the shock-absorbing spring;

[0006] The shock absorber fixing frame includes a bottom plate and side plates, and the side plates are fixedly installed on the side of the bottom plate;

[0007] The suspension frame includes a connecting sleeve, on which a first leg and a second leg are provided, and a spring top plate is provided at the lower end of the second leg; a round hole is provided on the spring top plate; the lower end of the first leg is rotatably installed in the round hole outside the side plate through a shaft.

[0008] Preferably, the positioning device is a stabilizer bar, and the upper end of the stabilizer bar passes through the round hole on the spring top plate; a nut is threadedly connected to the upper end of the stabilizer bar, and a fixing nut is connected to the lower end of the stabilizer bar.

[0009] Preferably, the positioning device is a damping shock-absorbing cylinder, and the damping shock-absorbing cylinder includes an outer cylinder, the outer cylinder is installed on the side plate, a main shaft is slidably installed in the outer cylinder, a piston is fixedly installed at the lower end of the main shaft; a damping adjustment cylinder is installed in the installation channel of the outer cylinder; an adjustment plug is threadedly installed in the internal hole of the damping adjustment cylinder.

[0010] Preferably, a damping oil chamber, a first oil hole, a second oil hole, and an installation channel are provided in the outer cylinder; the first oil hole is located outside the damping oil chamber, and the uppermost ends of the first oil hole and the damping oil chamber are connected; a second oil hole and an installation channel are provided at a lower position of the damping adjustment cylinder, and the installation channel is below the second oil hole; the second oil hole and the installation channel are connected; the second oil hole and the damping oil chamber are connected; the installation channel and the lowermost end of the first oil hole are connected; a clamping block is provided in the outer cylinder, and the clamping block is located inside the installation channel.

[0011] Preferably, a spring is provided at the rear end of the clamping block, and the other end of the spring is fixedly connected to the outer cylinder chute. The spring generates an elastic force to make the clamping block clamp the outer slot of the damping adjustment cylinder.

[0012] Preferably, a third oil hole and an internal hole are provided inside the damping adjustment cylinder, and the third oil hole and the internal hole are connected; a fourth oil hole is provided on the damping adjustment cylinder, and the fourth oil hole is connected to the internal hole, and the outside of the fourth oil hole is connected to the first oil hole; a sealing ring is provided outside the damping adjustment cylinder.

[0013] Preferably, an oil drain hole is provided inside the adjusting plug, and an automatic plug bead is provided inside the oil drain hole; a spring is provided on the automatic plug bead, and the other end of the spring is fixedly connected to the inside of the oil drain hole; a round hole is provided on the adjusting plug, and the round hole is connected to the oil drain hole.

[0014] The beneficial effects of the present invention compared with the prior art are as follows:

[0015] 1. The present invention dampens vibration by providing a shock-absorbing spring, and at the same time, through the relatively simple design of the bottom plate and side plate, a simple and practical shock-absorbing function is achieved.

[0016] 2. By providing two positioning devices, the present invention ensures the stability and safety of the mechanism while achieving shock absorption.

[0017] 3. Through the design of the damping shock-absorbing cylinder, the present invention utilizes the frictional damping between the oil and the mechanism to achieve shock absorption, improving the shock-absorbing effect. At the same time, the multi-oil-channel circulation is used for resetting, realizing rapid resetting, increasing the shock-absorbing frequency, and making the shock-absorbing effect better. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the first angle of the overall structure of the first embodiment of the present invention.

[0019] Figure 2 It is a schematic diagram of the second angle of the overall structure of the first embodiment of the present invention.

[0020] Figure 3 It is a schematic diagram of the structure of the shock-absorbing fixing frame of the present invention.

[0021] Figure 4It is a schematic structural diagram of the suspension bracket of the present invention.

[0022] Figure 5 It is a schematic diagram of the overall structure of the second embodiment of the present invention.

[0023] Figure 6 It is a schematic structural diagram of the positioning device of the second embodiment of the present invention.

[0024] Figure 7 It is a schematic structural diagram of the positioning device of the second embodiment of the present invention from a second angle.

[0025] Figure 8 It is a schematic cross-sectional structural diagram of the positioning device of the second embodiment of the present invention.

[0026] Figure 9 It is a schematic structural diagram of the main shaft and the piston of the second embodiment of the present invention.

[0027] Figure 10 It is a schematic structural diagram of the outer cylinder of the second embodiment of the present invention.

[0028] Figure 11 It is a schematic structural diagram of the damping adjustment cylinder of the second embodiment of the present invention.

[0029] Figure 12 It is a schematic structural diagram of the adjustment plug of the second embodiment of the present invention.

[0030] Reference numerals in the drawings: 1 - shock absorber fixing bracket; 101 - bottom plate; 102 - side plate; 2 - suspension bracket; 201 - first leg; 202 - second leg; 203 - connecting sleeve; 204 - spring top plate; 3 - upper suspension; 4 - nut; 5 - shock absorber spring; 6 - stabilizer bar; 7 - fixing nut; 8 - screw; 9 - damping shock absorber cylinder; 901 - connecting shaft; 902 - main shaft; 903 - outer cylinder; 904 - damping adjustment cylinder; 905 - adjustment plug; 906 - piston; 907 - damping oil chamber; 908 - first oil hole; 909 - clamping block; 910 - second oil hole; 911 - installation channel; 912 - third oil hole; 913 - fourth oil hole; 914 - built-in hole; 915 - automatic plug bead; 916 - oil drain hole; 917 - sealing ring. Detailed implementation manners

[0031] The technical solutions of the present invention will be further specifically described below through embodiments and in conjunction with the drawings. Many specific details are set forth in the following description in order to fully understand the present invention, but the present invention can be implemented in many other ways different from those described herein. Those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0032] It should be noted that phrases such as "one embodiment", "embodiment", "exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include specific features, structures or characteristics, but not necessarily every embodiment includes such specific features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. Moreover, when combining specific features, structures or characteristics with embodiments, it is within the knowledge scope of those skilled in the art to implement such features, structures or characteristics in combination with other embodiments, whether explicitly or implicitly described.

[0033] Embodiment 1

[0034] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 As shown, a suspension damping system includes a shock absorber fixing frame 1, and the shock absorber fixing frame 1 is fixedly installed on the wheel hub by screws. A suspension frame 2 is rotatably installed on the shock absorber fixing frame 1; one end of a damping spring 5 is fixedly connected to the suspension frame 2, and the other end is fixedly connected to the shock absorber fixing frame 1; a positioning device is installed between the shock absorber fixing frame 1 and the suspension frame 2, and the positioning device is located in the middle of the damping spring 5.

[0035] The shock absorber fixing frame 1 includes a bottom plate 101 and side plates 102. The side plates 102 are fixedly installed on the side of the bottom plate 101, and the bottom plate 101 is fixedly connected to the wheel hub by screws; a rotating seat is arranged outside the side plates 102, and the rotating seat is rotationally connected to the hole of the first leg 201 through a shaft.

[0036] The suspension frame 2 includes a connecting sleeve 203. A first leg 201 and a second leg 202 are arranged on the connecting sleeve 203, and a spring top plate 204 is arranged at the lower end of the second leg 202; a round hole is arranged on the spring top plate 204; the lower end of the first leg 201 is rotationally installed in the round hole outside the side plates 102 through a shaft; the spring top plate 204 is fixedly connected to the upper end of the damping spring 5; the upper end of the connecting sleeve 203 is fixedly connected to the upper suspension frame 3 by screws.

[0037] Please refer to Figure 1 、 Figure 2 As shown, the positioning device is a stabilizer bar 6. The upper end of the stabilizer bar 6 passes through the round hole on the spring top plate 204; a nut 4 is threadedly connected to the upper end of the stabilizer bar 6, and the nut 4 is used to limit the suspension frame 2 to prevent the suspension frame 2 from detaching from the stabilizer bar 6; a fixing nut 7 is connected to the lower end of the stabilizer bar 6, and the fixing nut 7 is used to limit the suspension frame 2 to prevent the shock absorber fixing frame 1 from detaching from the suspension frame 2; at this time, the damping spring 5 is in a slightly compressed state.

[0038] Working principle: When in use, the bottom plate 101 of the shock absorber fixing bracket 1 is fixedly installed on the wheel hub through screws. Next, the upper suspension bracket 3 is connected to the vehicle chassis. When the vehicle travels on uneven roads, buffering and shock absorption are achieved due to the elastic force of the shock absorption spring 5. The circular hole of the spring top plate 204 of the suspension bracket 2 slides on the stabilizer bar 6, thus realizing shock absorption.

[0039] Embodiment 2

[0040] Please refer to Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 、 Figure 12 As shown in the figures, the positioning device is a damping shock absorber cylinder 9. The damping shock absorber cylinder 9 includes an outer cylinder 903. The outer cylinder 903 is installed on the side plate 102. The main shaft 902 is slidably installed in the outer cylinder 903. A piston 906 is fixedly installed at the lower end of the main shaft 902. The damping adjustment cylinder 904 is installed in the installation channel 911 of the outer cylinder 903. The adjustment plug 905 is threadedly installed in the built-in hole 914 of the damping adjustment cylinder 904. One end of the connecting shaft 901 is fixedly installed on the spring top plate 204, and the other end of the connecting shaft 901 is rotatably connected to the main shaft 902. Secondary shock absorption is achieved through the damping shock absorber cylinder 9, improving the shock absorption effect.

[0041] Please refer to Figure 8 As shown in the figure, a damping oil cavity 907, a first oil hole 908, a second oil hole 910, and an installation channel 911 are provided in the outer cylinder 903. The first oil hole 908 is located outside the damping oil cavity 907, and the uppermost end of the first oil hole 908 is connected to the damping oil cavity 907. A second oil hole 910 and an installation channel 911 are provided at a lower position of the damping adjustment cylinder 904, and the installation channel 911 is below the second oil hole 910. The second oil hole 910 is connected to the installation channel 911. The second oil hole 910 is connected to the damping oil cavity 907. The installation channel 911 is connected to the lowermost end of the first oil hole 908. A clamping block 909 is provided in the outer cylinder 903, and the clamping block 909 is located inside the installation channel 911. The clamping block 909 is used to clamp the damping adjustment cylinder 904. Oil is built in the damping oil cavity 907 and the first oil hole 908. The oil flows from the damping oil cavity 907, through the second oil hole 910 and the installation channel 911, into the first oil hole 908, and the oil in the first oil hole 908 flows into the damping oil cavity 907 from the upper end of the first oil hole 908, thus completing the oil circuit circulation.

[0042] Please refer to Figure 10As shown, a spring is provided at the rear end of the clamping block 909, and the other end of the spring is fixedly connected to the chute of the outer cylinder 903. The spring generates an elastic force to make the clamping block 909 clamp the outer groove of the damping adjustment cylinder 904. When the damping adjustment cylinder 904 is installed in the installation channel 911, the clamping block 909 clamps the damping adjustment cylinder 904 under the action of the spring, thereby fixing the damping adjustment cylinder 904.

[0043] Please refer to Figure 11 As shown, a third oil hole 912 and an internal hole 914 are provided inside the damping adjustment cylinder 904, and the third oil hole 912 is connected to the internal hole 914. A fourth oil hole 913 is provided on the damping adjustment cylinder 904, and the fourth oil hole 913 is connected to the internal hole 914. The outside of the fourth oil hole 913 is connected to the first oil hole 908. A sealing ring 917 is provided on the outside of the damping adjustment cylinder 904. When the damping adjustment cylinder 904 is installed in the installation channel 911, the outer sealing ring 917 contacts the upper end of the installation channel 911 to seal the second oil hole 910.

[0044] Please refer to Figure 12 As shown, an oil drain hole 916 is provided inside the adjustment plug 905, and an automatic plug bead 915 is provided inside the oil drain hole 916. A spring is provided on the automatic plug bead 915, and the other end of the spring is fixedly connected to the inside of the oil drain hole 916. A round hole is provided on the adjustment plug 905, and the round hole is connected to the oil drain hole 916. Specifically, the automatic plug bead 915 is located in the middle of the oil drain hole 916. Usually, the oil drain hole 916 is cut off by the spring of the automatic plug bead 915. When the oil flows from the second oil hole 910 into the oil drain hole 916, under the impact force of the oil, the automatic plug bead 915 blocks the oil drain hole 916. When the oil flows from the fourth oil hole 913 into the round hole of the adjustment plug 905 and then into the lower part of the oil drain hole 916, the automatic plug bead 915 is pushed open due to the impact force of the oil, and then the oil can flow through the oil drain hole 916 and into the second oil hole 910.

[0045] Working principle: When in use, the bottom plate 101 of the shock absorber fixing bracket 1 is fixedly installed on the wheel hub through screws. Next, the upper suspension 3 is connected to the vehicle chassis. When the vehicle travels on uneven roads, the shock absorption spring 5 provides the first stage of buffering. At the same time, one end of the spring top plate 204 of the suspension bracket 2 presses on the connecting shaft 901, and the connecting shaft 901 presses on the main shaft 902, causing the main shaft 902 to slide in the outer cylinder 903. When the main shaft 902 is pushed downward, the main shaft 902 pushes the piston 906, and then pushes the oil in the damping oil chamber 907 below the piston 906 to flow toward the second oil hole 910. The oil flows from the second oil hole 910 into the third oil hole 912, then bypasses the gap between the adjusting plug 905 and the damping adjusting cylinder 904 and flows toward the fourth oil hole 913. The oil flows from the fourth oil hole 913 into the installation channel 911 and then into the first oil hole 908. The oil flows from the first oil hole 908 into the damping oil chamber 907; this realizes the oil circuit circulation and at the same time realizes shock absorption.

[0046] When the shock absorption spring 5 is compressed, it resets under the elastic force of the shock absorption spring 5. Through the elastic force of the shock absorption spring 5, the nut 4 is driven to move upward. The nut 4 drives the damping shock absorber cylinder 90 and the shock absorber fixing bracket 1, which in turn drives the main shaft 902 to move upward. When the main shaft 902 moves upward, the piston 906 moves upward, driving the oil above the damping oil chamber 907 to flow through the first oil hole 908, through the installation channel 911, and then into the fourth oil hole 913. Then, it flows through the gap between the damping adjusting cylinder 904 and the adjusting plug 905 into the third oil hole 912 and then into the lower damping oil chamber 907; at the same time, another part of the oil passes through the hole of the adjusting plug 905, flows through the hole into the oil drain hole 916, and then pushes open the automatic blocking bead 915 and flows into the third oil hole 912; this facilitates quick reset.

Claims

1. A suspension damping system, characterized in that, It includes a shock absorber fixing bracket (1), on which a suspension bracket (2) is rotatably mounted; one end of a shock absorber spring (5) is fixedly connected to the suspension bracket (2), and the other end is fixedly connected to the shock absorber fixing bracket (1); a positioning device is installed between the shock absorber fixing bracket (1) and the suspension bracket (2), and the positioning device is located in the middle of the shock absorber spring (5). The shock absorber fixing bracket (1) includes a bottom plate (101) and a side plate (102), and the side plate (102) is fixedly installed on the side of the bottom plate (101). The suspension bracket (2) includes a connecting sleeve (203), on which a first leg (201) and a second leg (202) are provided, and a spring top plate (204) is provided at the lower end of the second leg (202); a round hole is provided on the spring top plate (204); the lower end of the first leg (201) is rotatably installed in a round hole outside the side plate (102) through a shaft. The positioning device is a damping shock absorber cylinder (9), and the damping shock absorber cylinder (9) includes an outer cylinder (903), the outer cylinder (903) is installed on the side plate (102), a main shaft (902) is slidably installed in the outer cylinder (903), and a piston (906) is fixedly installed at the lower end of the main shaft (902); a damping adjustment cylinder (904) is installed in an installation channel (911) of the outer cylinder (903); an adjustment plug (905) is threadedly installed in an internal hole (914) of the damping adjustment cylinder (904). A damping oil cavity (907), a first oil hole (908), a second oil hole (910) and an installation channel (911) are provided in the outer cylinder (903); the first oil hole (908) is located outside the damping oil cavity (907), and the first oil hole (908) is connected to the uppermost end of the damping oil cavity (907); a second oil hole (910) and an installation channel (911) are provided at a lower position of the damping adjustment cylinder (904), and the installation channel (911) is below the second oil hole (910); the second oil hole (910) is connected to the installation channel (911); the second oil hole (910) is connected to the damping oil cavity (907); the installation channel (911) is connected to the lowermost end of the first oil hole (908); a clamping block (909) is provided in the outer cylinder (903), and the clamping block (909) is located inside the installation channel (911). A third oil hole (912) and an internal hole (914) are provided inside the damping adjustment cylinder (904), and the third oil hole (912) is connected to the internal hole (914); a fourth oil hole (913) is provided on the damping adjustment cylinder (904), the fourth oil hole (913) is connected to the internal hole (914), and the outside of the fourth oil hole (913) is connected to the first oil hole (908); a sealing ring (917) is provided outside the damping adjustment cylinder (904). The described adjusting plug (905) is provided with an oil drain hole (916), and an automatic plug bead (915) is arranged inside the oil drain hole (916); a spring is arranged on the automatic plug bead (915), and the other end of the spring is fixedly connected to the inner side of the oil drain hole (916); a circular hole is arranged on the adjusting plug (905), and the circular hole communicates with the oil drain hole (916).

2. The suspension damping system according to claim 1, characterized in that The described positioning device is a stabilizing rod (6), and the upper end of the stabilizing rod (6) passes through the circular hole on the spring top plate (204); a nut (4) is threadedly connected to the upper end of the stabilizing rod (6); a fixing nut (7) is connected to the lower end of the stabilizing rod (6).

3. A suspension damping system according to claim 1, characterized in that, A spring is arranged at the rear end of the described clamping block (909), and the other end of the spring is fixedly connected to the chute of the outer cylinder (903). The spring generates an elastic force to make the clamping block (909) clamp the outer side slot of the damping adjusting cylinder (904).

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