Buffer damping device and transmission mechanism

Abstract

The utility model discloses a buffering and damping device. The buffering and damping device comprises a supporting body and a buffering assembly. The buffering assembly is rotatably installed at one end of the supporting body, and a roller is arranged at the tail end of the buffering assembly. At least part of the rollers exceed the preset height of the conveying face of the conveying device. The double torsional springs are elastically connected with the buffering assembly and the supporting body. The buffer damping device is provided with double torsional springs and a rubber pad to provide resistance and shock absorption, and products in the material unit are protected against damage caused by excessive inertial vibration. When a large-mass product passes, forward force is applied to the rolling wheels, and the buffering assembly turns over towards the input direction of the conveying device under the action of elastic pre-tightening force of the double torsional springs to lift the rocker arm plate. The buffer damping device provides resistance in the reverse direction for the large-mass product, after the product passes through, the pre-tightening force of the double torsional springs is relieved, and the rocker arm plate recovers to be in the vertical state. And when the buffer damping device restores to the upright state, the damping piece plays a role in damping and buffering, and collision of the sheet metal parts is avoided.

Description

Technical Field

[0001] This utility model relates to the field of warehousing technology, and in particular to a buffer damping device and a transmission mechanism. Background Technology

[0002] Kuramoto products are an important component of lean management, and one of the auxiliary components for building a flexible semi-automatic system.

[0003] Existing material handling units using roller conveyor systems directly transport materials, relying on their own friction for deceleration or damping. However, these systems struggle to decelerate large-mass products, and increasing damping makes it difficult to move small-mass products. A damping device is installed between the two rollers of the roller conveyor mechanism. At least part of the damping device's rollers extend beyond the conveyor surface of the roller conveyor by a predetermined height. When a large-mass product passes, the device is triggered, utilizing double torsion springs to provide resistance; small-mass products may pass through without triggering the device and reach their destination directly. Therefore, existing material handling units struggle to simultaneously buffer large-mass products and ensure that small-mass products reach their destination quickly. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a buffer damping device and a transmission mechanism.

[0005] This utility model provides a buffer damping device, which includes:

[0006] Support body; buffer assembly, rotatably mounted on one end of the support body, the end of the buffer assembly being provided with a roller; torsion spring assembly, elastically connecting the buffer assembly and the support body, at least part of the rollers extending beyond the preset height of the conveying surface of the transmission device.

[0007] The buffer damping device, equipped with torsion spring assemblies and rubber pads, provides resistance and shock absorption, protecting the products in the material unit from damage caused by excessive inertial vibration. When a large product passes through, the rollers experience a forward force, while the buffer assembly, under the elastic preload of the torsion spring assembly, flips and lifts the rocker arm plate in the input direction of the conveyor. The buffer damping device provides counter-resistance to the large product; after the product passes, the preload of the double torsion springs is released, and the rocker arm plate returns to an upright position.

[0008] The device is flexible, compact, and easy to install, with minimal requirements for the installation environment.

[0009] In one embodiment, the support body is provided with an elongated hole, and the mounting height of the support body relative to the transmission device is adjusted up and down along the length direction of the elongated hole.

[0010] In one embodiment, the support body includes a support plate and bent walls that are curved relative to both sides of the support plate, and the buffer assembly is hinged to the bent walls.

[0011] In one embodiment, the buffer assembly includes a rocker arm plate and a pivot pin. The rocker arm plate is hinged to the support body via the pivot pin. The torsion spring assembly is sleeved on the pivot pin and elastically abuts against the rocker arm plate and the support body, respectively. The roller is rotatably mounted on the rocker arm plate.

[0012] In one embodiment, the rocker arm plate includes a buffer end and a limiting end located on both sides of the pivot pin, wherein the length of the limiting end is greater than the length of the buffer end.

[0013] In one embodiment, the buffer assembly includes a shock absorber mounted on the rocker arm plate, the shock absorber facing the support body.

[0014] In one embodiment, the damping device has a shock absorber configured as a cylindrical structure and made of rubber material.

[0015] In one embodiment, the buffer damping device includes a rocker arm plate comprising two adjustment holes, which are paired with the torsion spring assembly.

[0016] In one embodiment, the buffer damping device includes a support body comprising a first connector and a second connector joined together to form a connector assembly that is inserted and fixedly connected to the frame.

[0017] The advantages of this utility model compared with the prior art after adopting the above structure are: the supporting body and the buffer assembly can be rotatably installed at one end of the supporting body, and the end of the buffer assembly is provided with a roller for flexible installation method and position.

[0018] The buffer damping device, equipped with torsion spring assemblies and rubber pads, provides resistance and shock absorption, protecting the products in the material unit from damage caused by excessive inertial vibration. When a large mass product passes by, the roller experiences a forward force, and the buffer damping device provides counter-resistance to the product, effectively buffering and decelerating it.

[0019] The main components of the buffer damping device are cold-formed, which makes production and processing convenient and allows for large-scale use. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0021] Figure 1 This is a three-dimensional structural diagram of the buffer damping device of this utility model.

[0022] Figure 2This is a three-dimensional structural diagram of the buffer damping device of this utility model during operation.

[0023] Figure 3 This is a three-dimensional structural diagram of the torsion spring assembly of this utility model.

[0024] Figure 4 This is a three-dimensional structural diagram of the rocker arm plate of this utility model.

[0025] Figure 5 This is a three-dimensional structural diagram of the supporting body of this utility model.

[0026] In the figure: Support body 10; First connector 11; Second connector 12; Connector assembly 13; Frame 14; Frame insertion part 15; First elongated hole 16; Second elongated hole 17; Support plate 18; Rocker arm plate 20; Connecting shaft 21; Shock absorber 22; Roller 23; First torsion spring fixing hole 24; Second torsion spring fixing hole 25; Double torsion spring 30; Rotary pin 31; Connecting rod 32 Detailed Implementation

[0027] The following description is only a preferred embodiment of the present invention and does not limit the scope of protection of the present invention.

[0028] A buffer damping device is used for buffering material units conveyed by a transmission device. The buffer damping device includes a support body 10, a buffer assembly, and a torsion spring assembly.

[0029] like Figure 1 and Figure 2 As shown, the support body 10 is fixed to the connector assembly 13 via fasteners through the first elongated hole 16 and the second elongated hole 17, allowing it to be installed at any position on the transport mechanism. Pin holes are provided at the upper ends of the curved sections on both sides of the support plate 18 of the support body 10, through which the pivot pin 31 passes and is hinged to the buffer assembly.

[0030] like Figure 1 As shown, the connector assembly 13 consists of a first connector 11 and a second connector 12. These three components are fastened together by fasteners to form the connector assembly 13. The chamfered portion at the upper end of the connector assembly 13 forms a dovetail groove shape that interlocks with the frame insertion portion 15, reinforcing the stability of the frame 14. Optionally, the connector assembly 13 can be fixed to the frame 14 by screws driven in from the bottom. Alternatively, the first connector 11 and the second connector 12 can be used to clamp the frame 14 in the middle position. The frame insertion portion 15 near the support body 10 abuts against the support plate 18, further stabilizing the position of the support plate 18.

[0031] like Figure 5As shown, the lower end of the support body 10 is provided with a first elongated hole 16 and a second elongated hole 17. The assembly height of the support body 10 relative to the conveying device is adjusted along the length direction of the first elongated hole 16 and the second elongated hole 17 to control the height of the roller above the roller table. The greater the height of the roller installation position above the roller table, the greater the resistance provided by the buffer damping device and the more obvious the deceleration effect; conversely, the smaller the resistance and the weaker the deceleration effect.

[0032] Buffer damping devices are mainly used for deceleration of the end-of-line material unit. The end-of-line speed depends not only on the unit mass but also on the roller conveyor angle, length, and mechanical friction resistance. A larger roller conveyor inclination angle and a longer roller conveyor result in a higher end-of-line product speed. Mechanical friction is related to the product surface material and the material of the roller conveyor unit; the smoother these materials, the lower the mechanical friction and the higher the end-of-line product speed.

[0033] In one embodiment, a long roller conveyor with a larger inclination angle allows for a significantly faster end-of-line speed for products of the same mass compared to a short roller conveyor with a smaller inclination angle. When a long roller conveyor with a larger inclination angle only has one or more damping devices installed at its end, the damping effect may be insignificant when the product mass is too large, or it may cause the product to stop abruptly, exacerbating the bumps. Damping devices can be designed and installed according to different types of roller conveyors. In particular, using multiple damping devices in combination on a long roller conveyor with a larger inclination angle can effectively achieve gradual deceleration, allowing the product to reach its destination smoothly.

[0034] like Figure 1 and Figure 4 As shown, the buffer assembly is rotatably mounted on the upper end of the support body 10, and the roller 23 is rotatably mounted on the middle position of the rocker arm plate 20 via the connecting shaft 21. The double brackets protruding from both sides of the rocker arm plate 20 form a U-shaped groove, facilitating the installation and rotation of the roller 23. The width of the double brackets is smaller than the diameter of the roller 23, so that most of the roller 23's area extends beyond the edge of the double brackets, increasing the contact area and angle of the roller 23 on the transport mechanism. The roller 23 must be installed higher than the preset surface of the roller conveyor mechanism to ensure effective triggering of the buffer damping device and provide resistance to the heavy object.

[0035] When a heavy object comes into contact with the buffer damping device, it can both buffer the load and allow it to move forward stably, thus flexibly adjusting the transport speed of the heavy object.

[0036] like Figure 2 As shown, the rocker arm plate 20 includes a buffer end and a limiting end located on both sides of the pivot pin 31. The length of the limiting end is greater than the length of the buffer end. When the heavy object triggers the buffer damping device, the connection between the support body 10 and the rocker arm plate 20 acts as a fulcrum, forming a lever structure. Under the action of the lever, resistance is further provided to the heavy object, and after the heavy object passes, it can assist the double torsion spring 30 in resetting the rocker arm plate 20.

[0037] like Figure 2 , Figure 4 and Figure 5 As shown, the support plate 18 of the support body 10 has curved bent walls on both sides that are hinged to the bent walls of the rocker arm plate 20 of the buffer assembly. When the bent arms of the two are in the upright state, they are just inserted and abutting each other, which makes the buffer damping device less prone to shaking when it returns to the upright state.

[0038] like Figures 1 to 4 As shown, the torsion spring assembly consists of two torsion springs connected by a connecting rod 33, forming a double torsion spring 30 sleeved on a pivot pin 31. The pivot pin 31 passes through a pin hole at the bend of the rocker arm plate 20 and is elastically connected to the buffer assembly. The rocker arm plate 20 includes two adjustment holes, which are paired with the double torsion spring 30 to facilitate adjustment of the position of the double torsion spring 30, centered between the pivot pin 31 and the shallow groove at the upper end of the support plate 18. The lower left and right ends of the double torsion spring 30 are fixed to the first torsion spring fixing hole 24 and the second torsion spring fixing hole 25, respectively. The connecting rod 33 abuts against the shallow groove at the upper end of the support plate 18.

[0039] Under the elastic preload of the double torsion spring 30, the buffer assembly flips and lifts the rocker arm plate 20 in the input direction of the transmission device to provide resistance in the opposite direction. After the product passes through, the double torsion spring 30 is no longer under force, and the rocker arm plate 20 returns to its upright state.

[0040] like Figure 1 and Figure 4 As shown, the buffer assembly includes a shock absorber 22 mounted on the rocker arm plate 20. The shock absorber 22 faces the support body 10. The shock absorber 22 is divided into two ends, with the diameter of the end facing the support body 10 being smaller than the mounting hole on the rocker arm plate 20. Its cylindrical design allows for easy mounting on the rocker arm plate 20. When the preload of the double torsion spring 30 fails, and the rocker arm plate 20 falls rapidly due to inertia and the rebound force of the double torsion spring 30, the shock absorber 22 can buffer, dampen, and reduce noise. The shock absorber 22 is made of rubber and has a rebound force.

[0041] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this application should be included within the scope of protection of this application. Other structures and principles are the same as those in the prior art and will not be described in detail here.

Claims

1. A buffer damping device for buffering material units conveyed by a transmission device, characterized in that, The buffer damping device includes: Supporting entity; A buffer assembly is rotatably mounted on one end of the support body, and a roller is provided at the end of the buffer assembly; A torsion spring assembly elastically connects the buffer assembly and the support body. Under the elastic preload of the torsion spring assembly, the buffer assembly flips toward the input direction of the transmission device, and at least part of the rollers exceed the preset height of the conveying surface of the transmission device.

2. The buffer damping device according to claim 1, characterized in that, The support body is provided with an elongated hole, and the assembly height of the support body relative to the transmission device is adjusted along the length direction of the elongated hole.

3. The buffer damping device according to claim 2, characterized in that, The support body includes a support plate and bent walls that are curved relative to both sides of the support plate, and the buffer assembly is hinged to the bent walls.

4. The buffer damping device according to claim 3, characterized in that, The supporting body includes a first connector and a second connector, which are spliced ​​together to form a connector assembly and are inserted and fixedly connected to the frame.

5. The buffer damping device according to claim 4, characterized in that, The buffer assembly includes a rocker arm plate and a pivot pin. The rocker arm plate is hinged to the support body via the pivot pin. The torsion spring assembly is sleeved on the pivot pin and elastically abuts against the rocker arm plate and the support body respectively. The roller is rotatably mounted on the rocker arm plate.

6. The buffer damping device according to claim 5, characterized in that, The rocker arm plate includes a buffer end and a limiting end located on both sides of the pivot pin, wherein the length of the limiting end is greater than the length of the buffer end.

7. The buffer damping device according to claim 6, characterized in that, The buffer assembly includes a shock absorber mounted on the rocker arm plate, the shock absorber facing the support body.

8. The buffer damping device according to claim 7, characterized in that, The shock absorber is configured as a columnar structure and is made of rubber material.

9. The buffer damping device according to claim 8, characterized in that, The rocker arm plate includes two adjustment holes, which are paired with the torsion spring assembly.

10. A transmission mechanism, comprising a connector, a frame, and a buffer damping device as described in any one of claims 1-8, characterized in that, The supporting body is installed on the frame via the connector.

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