Damping type spring coupling

Abstract

The utility model provides a damping type spring coupling, and relates to the technical field of mechanical transmission. The damping type spring coupler comprises a shell, an output assembly and a spring vibration reduction assembly. The output assembly is rotatably installed on the shell around a preset axis, the output assembly is in transmission connection with the shell through the spring damping assembly, and the shell is used for transmitting torque to the output assembly through the spring damping assembly so as to drive the output assembly to rotate around the preset axis; the output assembly and the shell jointly define a plurality of damping cavities distributed around a preset axis, and the adjacent damping cavities are communicated; a blocking piece is arranged in at least one damping cavity in the multiple damping cavities, the blocking piece is provided with a flowing channel, and the blocking piece is used for moving relative to the damping cavity in the circumferential direction of the preset axis. The coupling is good in vibration reduction effect, long in service life and low in operation cost.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical transmission, and particularly to a damping spring coupling. Background Art

[0002] The phenomenon of torsional vibration is common in the fields of construction machinery and vehicles, especially in the field of engines. Torsional vibration has great destructiveness. In the light case, it increases the fatigue damage of the shaft and reduces the service life. In the severe case, it will cause the damage or fracture of the shafting of the unit. With the upgrading of the emissions and the improvement of the power density of internal combustion engines, the harm of the torsional vibration phenomenon becomes more serious. In the prior art, the torsional vibration problem at the output end of the engine is mainly improved by using a spring coupling. Since the spring coupling often operates in an environment of high temperature, high dust and high vibration, and the operating conditions are complex, the spring of the spring coupling is easily damaged due to fatigue, resulting in the failure of the spring coupling, short service life and poor vibration damping effect. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a damping spring coupling, which can extend the service life and improve the vibration damping effect.

[0004] The embodiments of the utility model are implemented as follows:

[0005] In a first aspect, the utility model provides a damping spring coupling, comprising:

[0006] A housing, an output assembly and a spring damping assembly; the output assembly is rotatably installed in the housing around a preset axis, the output assembly is in transmission connection with the housing through the spring damping assembly, and the housing is used for transmitting torque to the output assembly through the spring damping assembly to drive the output assembly to rotate around the preset axis;

[0007] The output assembly and the housing jointly define a plurality of damping cavities arranged around the preset axis, and adjacent damping cavities are communicated; at least one damping cavity of the plurality of damping cavities is provided with a blocking member, the blocking member is provided with a flow channel, and the blocking member is used for moving relative to the damping cavity in the circumferential direction of the preset axis.

[0008] In an optional embodiment, the output assembly includes a turntable and a partition member, the partition member is sleeved outside the turntable, and the two are relatively fixed in the circumferential direction of the turntable, and the turntable and the housing are rotatably matched around the preset axis; the partition member and the housing cooperate to define a plurality of the damping cavities.

[0009] Based on the above solution, the structure of the output assembly is simple. The turntable plays a role in transmitting torque, and the separator plays a role in forming a damping chamber. They can be designed differently according to their respective usage functions, reducing the processing difficulty, improving the processing accuracy, and enhancing the processing quality.

[0010] In an alternative embodiment, the turntable is provided with connecting protrusions that protrude from the outer peripheral surface of the turntable in the radially outward direction of the turntable; the separator is provided with connecting grooves, and the connecting protrusions are snapped into the connecting grooves.

[0011] Based on the above solution, the turntable and the separator are snap-fitted through the connecting protrusions and the connecting grooves, with a firm combination. During the movement of the turntable and the separator, relative movement is not likely to occur.

[0012] In an alternative embodiment, the separator includes a plurality of separating strips and a plurality of separating heads. The plurality of separating strips and the plurality of separating heads are alternately arranged in the circumferential direction, and adjacent separating strips and separating heads are fixedly connected; each separating strip, the housing, and two adjacent separating heads cooperate to define a damping chamber; through holes communicating adjacent damping chambers are provided on the separating heads.

[0013] Based on the above solution, the separator and the housing cooperate to define a plurality of damping chambers. There is no relative movement between the separator and the turntable, and the sealing performance between the separator and the turntable is good. The liquid located in the damping chamber is not likely to leak to the position where the turntable is located, and the amount of liquid in the damping chamber is not likely to decrease, enabling stable damping to be generated.

[0014] In an alternative embodiment, a plurality of damping chambers are filled with damping liquid.

[0015] Based on the above solution, after purchase, the user can directly use it without the need to perform operations such as filling the damping liquid, which is convenient to use.

[0016] In an alternative embodiment, each separating head includes a first part and a second part. The first part is attached to the second part, and the first part and the second part are relatively fixed in the circumferential direction of the preset axis.

[0017] Based on the above solution, the separating head is provided with a split structure. Thus, the separator is provided with a split structure, which is convenient for processing the separator. The separator can approach the turntable from the outside of the turntable, facilitating the assembly of the separator and the turntable.

[0018] In an alternative embodiment, the blocking member is fixed to the housing.

[0019] Based on the above solution, the blocking member is fixed to the housing. When the housing rotates with the blocking member, relative movement can be generated between the blocking member and the damping chamber. The liquid in the damping chamber is blocked by the damping member, generating damping acting on the turntable, thereby achieving the effect of reducing the vibration of the turntable.

[0020] In an alternative embodiment, the housing includes a first half-shell, a second half-shell, and fastening bolts. The first half-shell and the second half-shell are butted against each other. The blocking member is disposed on the first half-shell. The fastening bolts pass through the second half-shell and are screwed and fixed to the blocking member.

[0021] Based on the above solution, the blocking member can not only block the flow of liquid in the damping chamber, but also connect the first half-shell and the second half-shell. It has diverse functions, can reduce the number of components, and lower the processing cost.

[0022] In an alternative embodiment, the blocking member includes a threaded cylinder and a sealing sleeve. The threaded cylinder is connected to the first half-shell. The sealing sleeve is installed on the threaded cylinder. The flow channel is provided on the sealing sleeve. A positioning post is provided on the second half-shell. The positioning post is inserted into the sealing sleeve and is butted against the threaded cylinder. The fastening bolt is inserted through the positioning post.

[0023] Based on the above solution, the sealing sleeve can play a sealing role to prevent the liquid in the damping chamber from leaking from the connection position of the fastening bolt and the threaded cylinder.

[0024] In an alternative embodiment, the spring damping assembly includes a plurality of spring bodies, and the plurality of spring bodies are sleeved and matched in sequence.

[0025] Based on the above solution, by sleeving and matching a plurality of spring bodies, the elastic force can be increased and the buffer and damping effect can be improved. Moreover, when a plurality of spring bodies are sleeved together, the internal space of the spring bodies is reasonably utilized, the structure is compact, the volume is small, and the space utilization rate is high.

[0026] The beneficial effects of the embodiments of the present utility model are:

[0027] In summary, for the damping spring coupling provided in this embodiment, during use, the outer shell is connected to the power input part, and the power input part can be, for example, the flywheel of an engine. The output assembly is matched with an external output shaft. Moreover, a certain amount of damping liquid is filled in each damping cavity, and the damping liquid can be, but is not limited to, damping liquid, etc. The flywheel inputs torque to the outer shell, driving the outer shell to rotate around a preset axis. The outer shell transmits the torque to the output assembly through the spring damping assembly, driving the output assembly to rotate around the preset axis. The spring damping assembly has the function of damping and buffering, making the vibration of the output assembly small and the operation stable. At the same time, the position of the damping liquid in the damping cavity defined by the cooperation of the outer shell and the output assembly changes when the outer shell and the output assembly rotate, driving the damping liquid to move together. During the movement of the damping liquid, it contacts the blocking member located in the damping cavity, and the blocking member plays a role in blocking the damping liquid. The damping liquid can only flow in the adjacent damping cavities through the flow channels on the blocking member. The flow rate of the damping liquid is low, and the movement amplitude of the output assembly is small, thus achieving the effect of damping and vibration reduction. In this way, the spring damping assembly and the damping cavity cooperate, and the damping and buffering effect is good. The damping cavity shares part of the damping pressure, reducing the variable impact load on the buffer spring assembly and extending the service life of the spring damping assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0029] Figure 1 It is a cross-sectional schematic diagram of the damping spring coupling according to the embodiment of the present invention;

[0030] Figure 2 It is a schematic diagram of the damping spring coupling according to the embodiment of the present invention;

[0031] Figure 3 It is a schematic diagram of the cooperation between the turntable and the spline shaft according to the embodiment of the present invention;

[0032] Figure 4 It is a schematic diagram of the partition bar according to the embodiment of the present invention;

[0033] Figure 5 It is a schematic diagram of the spring damping assembly according to the embodiment of the present invention.

[0034] ICON:

[0035] 001 - Damping cavity; 100 - Outer shell; 110 - First half shell; 120 - Second half shell; 130 - Fastening bolt; 200 - Output assembly; 210 - Turntable; 211 - Positioning through hole; 220 - Partition member; 221 - Partition bar; 222 - First split part; 2221 - First groove; 223 - Second split part; 2231 - Second groove; 224 - First hole; 225 - Second hole; 230 - Spline shaft; 231 - Internal tooth interface sleeve; 240 - Connecting protrusion; 300 - Spring damping assembly; 310 - Spring body; 320 - Clamping plate; 400 - Blocking member; 410 - Threaded cylinder; 420 - Sealing sleeve; 421 - Flow channel. Detailed implementation manners

[0036] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0038] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0039] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0040] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0041] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In the prior art, the spring coupling plays the role of vibration reduction and force transmission through the spring arranged inside. The spring is subjected to a large load, the vibration reduction effect is not ideal, the service life of the spring is short, and the operating cost is high.

[0043] In view of this, the designer provides a damping spring coupling with long service life, good vibration reduction effect and low operating cost.

[0044] Please combine Figure 1 and Figure 2 In this embodiment, the damping spring coupling includes a housing 100, an output assembly 200 and a spring damping assembly 300; the output assembly 200 is rotatably mounted on the housing 100 around a preset axis, the output assembly 200 and the housing 100 are transmission-connected via the spring damping assembly 300, the housing 100 is used to transmit torque to the output assembly 200 via the spring damping assembly 300, so as to drive the output assembly 200 to rotate around the preset axis; the output assembly 200 and the housing 100 jointly define a plurality of damping chambers 001 arranged around the preset axis, and adjacent damping chambers 001 are connected; a blocking member 400 is provided in at least one of the plurality of damping chambers 001, the blocking member 400 is provided with a flow channel 421, and the blocking member 400 is used to move relative to the damping chamber 001 in the circumferential direction of the preset axis.

[0045] Based on the above, the damping spring coupling provided in this embodiment works as follows:

[0046] In use, the housing 100 is connected to the power input part, which can be, for example, the flywheel of an engine, and the output assembly 200 is engaged with an external output shaft. Moreover, a certain amount of damping fluid is filled in each damping chamber 001. The damping fluid can be, but is not limited to, damping fluid, etc. The flywheel inputs torque to the housing 100, driving the housing 100 to rotate around a preset axis. The housing 100 transmits the torque to the output assembly 200 through the spring damping assembly 300, driving the output assembly 200 to rotate around the preset axis. The spring damping assembly 300 has the function of damping and buffering, making the vibration of the output assembly 200 small and the operation stable. At the same time, the position of the damping fluid in the damping chamber 001 defined by the cooperation of the housing 100 and the output assembly 200 changes when the housing 100 and the output assembly 200 rotate, driving the damping fluid to move together. During the movement of the damping fluid, it contacts the blocking member 400 located in the damping chamber 001. The blocking member 400 plays a role in blocking the damping fluid. The damping fluid can only flow in the adjacent damping chambers 001 through the flow channels 421 on the blocking member 400. The flow rate of the damping fluid is low, and the movement amplitude of the output assembly 200 is small, thus achieving the effect of damping and vibration reduction. In this way, the spring damping assembly 300 and the damping chamber 001 cooperate, and the damping and buffering effect is good. The damping chamber 001 shares part of the damping pressure, making the load of the buffer spring assembly small and extending the service life of the spring damping assembly 300.

[0047] It should be understood that the damping fluid can be attached to the product, that is, a certain amount of damping fluid is stored in the damping chamber 001 after the coupling is manufactured, or the damping fluid can be added by the user subsequently.

[0048] The following embodiments will illustrate the details of the damping spring coupling provided by the present application by way of example.

[0049] Please refer to Figures 1-5 , in this embodiment, the damping spring coupling includes a housing 100, an output assembly 200, and a plurality of spring damping assemblies 300. The output assembly 200 is rotatably engaged with the housing 100 around a preset axis. The plurality of spring damping assemblies 300 are evenly spaced around the preset axis. The output assembly 200 is simultaneously in driving engagement with the housing 100 through the plurality of spring damping assemblies 300. When the housing 100 rotates, the torque is transmitted to the output assembly 200 through the plurality of spring damping assemblies 300. Moreover, the output assembly 200 and the housing 100 form a plurality of damping chambers 001 arranged around the preset axis. The adjacent damping chambers 001 are communicated, and a certain amount of damping fluid is stored in each damping chamber 001. The damping fluid can be a damping liquid such as silicone oil or a substance such as a semi-solid.

[0050] It should be understood that the number of spring shock absorption assemblies 300 is not limited to a fixed number, and can be a plurality of different ones, or a large spring can be sleeved with a small spring. In addition, the number of damping chambers 001 is not limited to a fixed number, and can be a plurality of different ones.

[0051] Please refer to Figure 2 , in this embodiment, optionally, the housing 100 is provided as a split structure. The housing 100 includes a first half shell 110 and a second half shell 120. Both the first half shell 110 and the second half shell 120 are circular half shells, and after being butted, they form a circular housing. Six first grooves 2221 are provided on the first half shell 110, and the six first grooves 2221 are evenly spaced around a preset axis. Six second grooves 2231 are provided on the second half shell 120, and the six second grooves 2231 are evenly spaced around a preset axis. After the first half shell 110 and the second half shell 120 are buckled, the six first grooves 2221 and the six second grooves 2231 are in one-to-one correspondence and cooperation, and the openings of the cooperating first grooves 2221 and the openings of the second grooves 2231 are opposite.

[0052] Optionally, after the first half shell 110 and the second half shell 120 are butted, they can be fixedly connected by fastening bolts 130.

[0053] Please refer to Figure 1 、 Figure 3 and Figure 4 , in this embodiment, optionally, the output assembly 200 includes a turntable 210, a separator 220, and a spline shaft 230. The separator 220 is installed on the four peripheral edges of the turntable 210, and the separator 220 and the housing 100 cooperate to define a plurality of damping chambers 001. The spline shaft 230 and the turntable 210 are fixedly connected by bolts and other fasteners. The spline shaft 230 and the turntable 210 are coaxially arranged, and the spline shaft 230 is used for clamping and cooperating with an external output shaft. Optionally, an internal tooth interface sleeve 231 is provided at the middle position of the spline shaft 230, and it is clamped and cooperated with an output shaft provided with external teeth.

[0054] Optionally, the turntable 210 is made of a metal piece, which has high structural strength and long service life. Further, the turntable 210 can be set as a disc. A plurality of positioning through holes 211 are arranged on the turntable 210 at equal intervals around a preset axis. The turntable 210 is rotatably installed between the first half shell 110 and the second half shell 120. The plurality of positioning through holes 211 are clamped between the first half shell 110 and the second half shell 120. Each positioning through hole 211 is respectively communicated with a paired first groove 2221 and a second groove 2231. That is, one end of the positioning through hole 211 is butted against the notch of the first groove 2221, and the other end of the positioning through hole 211 is butted against the notch of the second groove 2231. The first groove 2221, the second groove 2231 and the positioning through hole 211 cooperate to form a positioning part of the positioning spring damping assembly 300, and the number of the positioning parts is six. During assembly, each spring damping assembly 300 can be embedded into the communicated first groove 2221, positioning through hole 211 and second groove 2231.

[0055] Optionally, six connecting protrusions 240 are arranged on the outer peripheral surface of the turntable 210. Each connecting protrusion 240 protrudes radially outward from the outer peripheral surface of the turntable 210. The six connecting protrusions 240 and the turntable 210 can be set as an integral structure. Optionally, a communication hole is arranged on the connecting protrusion 240.

[0056] In other embodiments, optionally, the number of the turntables 210 can be multiple. The multiple turntables 210 are arranged in a stacked manner. During the movement process, the multiple turntables 210 can rotate relative to each other in the circumferential direction of the preset axis, and can also play a role in buffering and damping. For example, in this embodiment, the number of the turntables 210 can be two or more. The two turntables 210 are arranged in a stacked manner. The spline shaft 230 is fixedly connected to the outermost turntable 210 close to the second half shell 120, and the spline shaft 230 extends out of the second half shell 120.

[0057] Please refer to Figure 1 and Figure 4, Optionally, the separator 220 can be, but is not limited to, a plastic part with good sealing performance. Specifically, the separator 220 is set as a split structure. The separator 220 includes six separation units, and the six separation units are connected end to end in sequence to form an annular structure. Each separation unit includes an arc-shaped separation strip 221, a rectangular first split body 222, and a rectangular second split body 223. The first split body 222 and the second split body 223 can be integrally formed with the separation strip 221 and are located at both ends of the separation strip 221. Both the first split body 222 and the second split body 223 protrude from the outer peripheral surface of the separation strip 221. When adjacent separation strips 221 are butted, the first split body 222 is butted with the second split body 223 to cooperate to form a separation head. In this way, the separator 220 has six separation heads, and the outer sides of the separation heads are in sealed contact with the inner peripheral surface of the housing 100. The first half shell 110, the second half shell 120, and the six separation heads cooperate to form six damping chambers 001. Moreover, both sides of the separation strip 221 in the extending direction of the preset axis are also in sealed cooperation with the first half shell 110 and the second half shell 120 respectively. It should be understood that the separator 220 and the housing 100 are in dynamic sealing, that is, when the housing 100 rotates, it will move relative to the separator 220, and the basic positions of the separator 220 and the housing 100 change, but it does not affect their sealing performance.

[0058] Furthermore, grooves are provided on the inner sides of the first split body 222 and the second split body 223, that is, on the side close to the turntable 210. The first split body 222 and the second split body 223 of adjacent separation units are butted, and the two grooves communicate to form a connecting groove. The connecting protrusion 240 on the turntable 210 is inserted into the corresponding connecting groove. In this way, the turntable 210 and the separator 220 are relatively fixed in the circumferential direction of the preset axis, and the turntable 210 and the separator 220 can rotate synchronously.

[0059] Furthermore, a first hole 224 is provided on the first split body 222, a second hole 225 is provided on the second split body 223, and the connecting protrusion 240 cooperates with the first split body 222 and the second split body 223 of adjacent separation units. The first hole 224, the communication hole, and the second hole 225 are communicated in sequence, so as to realize the communication of adjacent damping chambers 001.

[0060] It should be understood that in other embodiments, the number of the connecting protrusions 240 and the connecting grooves is equal and is not limited to six, as long as the turntable 210 and the separator 220 can be relatively fixed in the circumferential direction of the preset axis. By setting multiple groups of connecting protrusions 240 and connecting grooves, the bonding stability can be improved.

[0061] In addition, holes may not be provided on the connecting protrusion 240, and the direct communication of the first hole 224 on the first split body 222 and the second hole 225 on the second split body 223 can also realize the communication of adjacent damping chambers 001.

[0062] Please refer to Figure 1 In this embodiment, optionally, the blocking member 400 includes a threaded cylinder 410 and a sealing sleeve 420. One blocking member 400 is provided in each damping chamber 001. Thus, the number of blocking members 400 is six. To avoid redundant narration, one blocking member 400 will be taken as an example for description. Among them, the threaded cylinder 410 is connected to the first half shell 110, the sealing sleeve 420 is installed on the threaded cylinder 410, and the sealing sleeve 420 can be sleeved on the end of the threaded cylinder 410 away from the first half shell 110. The flow channel 421 is provided on the sealing sleeve 420. The flow channel 421 is provided on the side of the sealing sleeve 420 away from the turntable 210. The flow channel 421 can be set as a notch on the sealing sleeve 420. At the same time, positioning posts are provided on the second half shell 120. The number of positioning posts is the same as that of the blocking members 400. Each positioning post is inserted into the corresponding sealing sleeve 420 and docked with the threaded cylinder 410. The fastening bolt 130 passes through the second half shell 120 and is inserted into the positioning post, and then is screwed and fixed with the threaded cylinder 410 to realize the docking of the first half shell 110 and the second half shell 120. And by using the locking force of the fastening bolt 130, the first half shell 110 and the second half shell 120 axially clamp the separator 220, achieving the sealing effect on both sides of the separator 220 in the extending direction of the preset axis. And the outer side surface of the separator 220 in the radial direction of the turntable 210 is in direct contact with the housing 100 to achieve sealing. The damping chamber 001 forms a relatively airtight chamber, and the damping liquid in the damping chamber 001 is not easy to leak.

[0063] Please refer to Figure 1 and Figure 5 In this embodiment, optionally, the spring shock absorption assembly 300 includes two clamping plates 320 and a plurality of spring bodies 310 located between the two clamping plates 320. The plurality of spring bodies 310 are sleeved and matched in sequence. For example, in this embodiment, the number of spring bodies 310 is two. During assembly, the two clamping plates 320 are simultaneously inserted into the first groove 2221, the positioning through hole 211 and the second groove 2231, and the elastic force direction of the spring body 310 is in the circumferential direction of the turntable 210.

[0064] Based on the above description, the working process of the damping spring coupling provided in this embodiment is as follows:

[0065] The housing 100 rotates driven by an external power, transmits the torque to the turntable 210 through the six spring shock absorption assemblies 300. During the rotation of the turntable 210, the separator 220 is driven to rotate. The separator 220 moves relative to the housing 100, pushing the damping liquid in the damping chamber 001 to move. The damping liquid is blocked by the sealing sleeve 420 during movement and can only flow through the flow channel 421 on the sealing sleeve 420. The flow speed of the damping liquid is slow, achieving the effect of damping and shock absorption.

[0066] The damping spring coupling provided in this embodiment realizes the vibration reduction of the turntable 210 through the cooperation of the spring vibration reduction assembly 300 and the damping cavity 001, and has a good vibration reduction effect. Moreover, the load of the spring body 310 is small, it is not easily damaged, has a long service life, and low operating costs.

[0067] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A damping spring coupling, characterized in that, Comprising: A housing (100), an output assembly (200), and a spring damping assembly (300); the output assembly (200) is rotatably mounted on the housing (100) about a preset axis, the output assembly (200) is in driving connection with the housing (100) through the spring damping assembly (300), and the housing (100) is used to transmit torque to the output assembly (200) through the spring damping assembly (300) to drive the output assembly (200) to rotate about the preset axis; The output assembly (200) and the housing (100) jointly define a plurality of damping chambers (001) arranged around the preset axis, and adjacent damping chambers (001) are communicated; at least one damping chamber (001) of the plurality of damping chambers (001) is provided with a blocking member (400), the blocking member (400) is provided with a flow channel (421), and the blocking member (400) is used to move relative to the damping chamber (001) in the circumferential direction of the preset axis.

2. The damping spring coupling according to claim 1, wherein: The output assembly (200) includes a turntable (210) and a partition member (220), the partition member (220) is sleeved outside the turntable (210), and the two are relatively fixed in the circumferential direction of the turntable (210), and the turntable (210) is rotatably matched with the housing (100) about the preset axis; the partition member (220) and the housing (100) cooperate to define a plurality of the damping chambers (001).

3. The damping spring coupling according to claim 2, wherein: The turntable (210) is provided with a connecting protrusion (240), and the connecting protrusion (240) protrudes from the outer peripheral surface of the turntable (210) in the radially outward direction of the turntable (210); the partition member (220) is provided with a connecting groove, and the connecting protrusion (240) is clamped in the connecting groove.

4. The damping spring coupling according to claim 3, wherein: The partition member (220) includes a plurality of partition strips (221) and a plurality of partition heads, the plurality of partition strips (221) and the plurality of partition heads are alternately arranged in the circumferential direction, and adjacent partition strips (221) and partition heads are fixedly connected; each partition strip (221), the housing (100), and two adjacent partition heads cooperate to define a damping chamber (001); the partition head is provided with a through hole for communicating adjacent damping chambers (001).

5. The damping spring coupling according to claim 4, wherein: A damping liquid is filled in the plurality of damping chambers (001).

6. The damping spring coupling according to claim 4, wherein: Each partition head includes a first split body (222) and a second split body (223), the first split body (222) is attached to the second split body (223), and the first split body (222) and the second split body (223) are relatively fixed in the circumferential direction of the preset axis.

7. The damped spring coupling according to claim 4, wherein: The blocking member (400) is fixed to the housing (100).

8. The damped spring coupling according to claim 7, wherein: The housing (100) includes a first half shell (110), a second half shell (120) and fastening bolts (130). The first half shell (110) and the second half shell (120) are butted against each other. The blocking member (400) is arranged on the first half shell (110). The fastening bolts (130) pass through the second half shell (120) and are screwed and fixed to the blocking member (400).

9. The damped spring coupling according to claim 8, wherein: The blocking member (400) includes a threaded cylinder (410) and a sealing sleeve (420). The threaded cylinder (410) is connected to the first half shell (110). The sealing sleeve (420) is installed on the threaded cylinder (410). The flow channel (421) is arranged on the sealing sleeve (420). A positioning post is arranged on the second half shell (120). The positioning post is inserted into the sealing sleeve (420) and abuts against the threaded cylinder (410). The fastening bolt (130) is inserted through the positioning post.

10. The damped spring coupling according to claim 1, wherein: The spring vibration damping assembly (300) includes a plurality of spring bodies (310), and the plurality of spring bodies (310) are sleeved and matched in sequence.

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