Damping insertion balancing device
By designing a damping insertion balancing device, which utilizes ball bearings, counterweights, and rubber balls sliding within an arc groove, combined with the design of irregular through grooves and damping pads, the problem of insufficient dynamic balancing speed and adaptability of the electric tailgate strut is solved, achieving rapid automatic balancing and significant damping effect.
Patent Information
- Application Number
- CN202520517707.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-24
AI Technical Summary
Existing electric tailgate struts for automobiles have low dynamic balancing speed, poor adaptability to working conditions, and insufficient structural compactness and reliability.
A damping insertion balancing device is adopted, including an insertion mechanism, a damping mechanism, and a balancing mechanism. By utilizing ball bearings, counterweights, and rubber balls sliding in an arc groove, combined with the design of irregular through grooves and damping pads, automatic balancing and damping functions under adaptive working conditions are achieved.
It achieves rapid automatic balancing of the equipment when tilted, improves adaptability to working conditions and damping effect, and has a simple and compact structure.
Smart Images

Figure CN223922887U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a balance device technical field, concretely is a damping insertion balance device. BACKGROUND
[0002] At present, the electric supporting rod of the automobile tail door on the market generally uses a DC motor with a reduction box as a power source to drive the screw rod and the transmission nut structure to move, so as to realize the extension and retraction action of the electric supporting rod, thereby driving the lifting of the automobile tail door. In the structure of the electric supporting rod, a spring is generally arranged to balance the weight of the door. When the electric supporting rod drives the automobile tail door to reach the opening state, the automobile tail door is generally subjected to the combined action of the torque of the automobile tail door gravity, the torque of the spring force of the electric supporting rod, and the torque of the resistance of the electric supporting rod itself (the transmission system, the reduction system, and the motor constitute the source of the resistance).
[0003] Application No. CN201821350570.3 discloses a rotary damper, which comprises a damping ring, a damping torsional spring, a damper seat, and the like. The rotary damper has compact structure, high reliability, simple assembly, small axial space occupation, and can increase appropriate rotary damping torque for the supporting rod under the condition of a small increase in the axial size of the supporting rod, greatly increasing the running stability of the supporting rod device. The rotary damper can also be installed at the power output shaft end of a motor or the like rotary power source, and is used for various electric control devices with large load variation to balance the load imbalance degree, so as to make the device run more stably. However, the dynamic balance speed of the rotary damper is low, and the working condition adaptability is poor. SUMMARY
[0004] The utility model aims at solving one of the technical problems existing in the prior art or related art.
[0005] To this end, the utility model adopts the technical scheme of:
[0006] A damping insertion balance device, comprising an insertion mechanism, a damping mechanism, and a balance mechanism. The insertion mechanism comprises a main shaft, a rotary selection disc sleeved on the outer side of the main shaft, and a shell attached to the outer wall of the rotary selection disc. The damping mechanism comprises a plurality of special-shaped through grooves opened on the outer side of the rotary selection disc, and a plurality of damping pads connected to the inner wall of the shell. The damping pads are matched with the special-shaped through grooves. The balance mechanism comprises two ball bearings sleeved on the outer side of the main shaft, a plurality of counterweights enclosed on the outer side of the ball bearings, a ball rack connected to the outer wall of the counterweights, a rubber ball movably connected to the ball rack, and a plurality of arc grooves opened on the inner wall of the shell. The plurality of rubber balls are respectively located inside the plurality of arc grooves.
[0007] By adopting the above technical solution, when the equipment tilts, the counterweight connected to the main shaft by the ball bearing slides the rubber ball in the arc groove through the ball frame. The shape of the arc groove makes it difficult for the rubber ball to enter the outer section. Even if it can enter, the rubber ball will quickly return to the middle section due to the compression problem. This achieves the purpose of the counterweight to quickly and automatically balance the main shaft and realize the ability to adapt to working conditions.
[0008] In a preferred embodiment, the present invention can be further configured such that: the shell is composed of a base steel and two extension steels, the base steel is integrally formed between the two extension steels, and the shell is made of 6061-T6 aluminum alloy in a split forging process.
[0009] In a preferred embodiment, this utility model can be further configured as follows: multiple irregularly shaped through slots and multiple damping pads are evenly spaced and arranged in a ring, the irregularly shaped through slots and damping pads are staggered, the irregularly shaped through slots are narrower at the top and wider at the bottom, and the damping pads are fixedly connected to the inner wall of the base steel.
[0010] In a preferred embodiment, the present invention can be further configured such that: multiple arc grooves are located inside two extended steel sections, and the width of the arc grooves gradually decreases from the middle section to the outer section.
[0011] In a preferred embodiment, the present invention can be further configured such that: a plurality of sealing rings are fitted to the inner wall of the housing, the plurality of sealing rings are arranged in pairs, and the two sets of sealing rings are respectively located inside two extended steels, and the inner wall of the sealing rings is interference-fitted with the outer wall of the counterweight.
[0012] In a preferred embodiment, the present invention can be further configured such that an observation window is embedded in the extension steel near the top of the main shaft, the thickness of the observation window being equal to the thickness of the extension steel, and the observation window being located between two arc grooves.
[0013] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:
[0014] 1. In this utility model, when the equipment tilts, the counterweight block connected to the main shaft via the ball bearing slides the rubber ball in the arc groove via the ball frame. The shape of the arc groove makes it difficult for the rubber ball to enter the outer section. Even if it can enter, the rubber ball will quickly return to the middle section due to the compression problem. This achieves the purpose of the counterweight block to quickly and automatically balance the main shaft and realize the ability to adapt to working conditions.
[0015] 2. In this utility model, the device will automatically rotate in the opposite direction when tilted. The reverse rotation triggers the damping state, and the damping pad is inserted into the irregular through groove to realize the self-damping function. The structure is simple and the damping effect is obvious. Attached Figure Description
[0016] Figure 1 This is a perspective view of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the internal structure of the housing of this utility model;
[0018] Figure 3 This is a schematic diagram of the insertion mechanism and damping mechanism of this utility model;
[0019] Figure 4 This is a perspective view of the housing of this utility model;
[0020] Figure 5 This is a schematic diagram of the balancing mechanism of this utility model.
[0021] Figure label:
[0022] 100. Insertion mechanism; 110. Main shaft; 120. Rotary selection disk; 130. Housing; 131. Base steel; 132. Extension steel;
[0023] 200. Damping mechanism; 210. Irregularly shaped through groove; 220. Damping pad;
[0024] 300. Balancing mechanism; 310. Ball bearing; 320. Counterweight; 330. Ball holder; 340. Rubber ball; 350. Arc groove; 351. Middle section; 352. Outer section;
[0025] 400. Sealing ring;
[0026] 500. Observation window. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.
[0028] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.
[0029] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a damping insertion balancing device.
[0030] Example 1:
[0031] Combination Figures 1-5 As shown, the present invention provides a damping insertion balancing device, including an insertion mechanism 100, a damping mechanism 200 and a balancing mechanism 300. The insertion mechanism 100 includes a main shaft 110, a rotating selection disk 120 sleeved on the outside of the main shaft 110, and a housing 130 that fits against the outer wall of the rotating selection disk 120.
[0032] The damping mechanism 200 includes a plurality of irregularly shaped through slots 210 formed on the outside of the rotary selection disk 120 and a plurality of damping pads 220 connected to the inner wall of the housing 130, wherein the damping pads 220 are adapted to the irregularly shaped through slots 210.
[0033] The balancing mechanism 300 includes two ball bearings 310 sleeved on the outside of the main shaft 110, a plurality of counterweights 320 surrounding the outside of the ball bearings 310, a ball frame 330 connected to the outer wall of the counterweights 320, rubber balls 340 movably connected to the ball frame 330, and a plurality of arc grooves 350 formed on the inner wall of the housing 130, wherein the plurality of rubber balls 340 are respectively located inside the plurality of arc grooves 350.
[0034] Furthermore, the shell 130 is composed of a base steel 131 and two extension steels 132. The base steel 131 is integrally formed between the two extension steels 132. The shell 130 is made of 6061-T6 aluminum alloy in a split forging process. The structural design of the shell 130 realizes the function of dividing the damping and self-balancing into different areas, thereby improving the structural integrity.
[0035] Furthermore, multiple irregularly shaped through slots 210 and multiple damping pads 220 are evenly spaced and arranged in a ring. The irregularly shaped through slots 210 and damping pads 220 are staggered. The irregularly shaped through slots 210 are narrower at the top and wider at the bottom. The damping pads 220 are fixed to the inner wall of the base steel 131. With this layout design, each damping pad 220 can be engaged with one irregularly shaped through slot 210 to achieve dynamic self-balancing compensation capability.
[0036] Furthermore, multiple arc grooves 350 are located inside the two extended steels 132 respectively. The width of the arc grooves 350 gradually decreases from the middle section 351 to the outer section 352. The shape design of the arc grooves 350 increases the difficulty of the rubber ball 340 sliding, reduces the rolling amplitude of the rubber ball 340 when the equipment is tilted, and helps the equipment to quickly balance.
[0037] Example 2:
[0038] Combination Figures 1-2 As shown, based on Embodiment 1, the inner wall of the housing 130 is fitted with multiple sealing rings 400. The multiple sealing rings 400 are arranged in pairs, forming two groups. The two groups of sealing rings 400 are located inside the two extension steels 132 respectively. The inner wall of the sealing rings 400 is press-fitted with the outer wall of the counterweight 320. The sealing rings 400 can improve the sealing performance of this device.
[0039] Example 3:
[0040] Combination Figures 1-2As shown, in the above embodiment, an observation window 500 is embedded on the extension steel 132 near the top of the main shaft 110. The thickness of the observation window 500 is equal to the thickness of the extension steel 132. The observation window 500 is located between two arc grooves 350. The observation window 500 helps the staff to understand the situation inside the housing 130.
[0041] The working principle and usage process of this utility model: When this device is put into actual use, it is installed in an external device. When the device tilts, the counterweight 320, which is connected to the main shaft 110 through the ball bearing 310, allows the rubber ball 340 to slide in the arc groove 350 through the ball frame 330. The shape of the arc groove 350 makes it difficult for the rubber ball 340 to enter the outer section 352. Even if it can enter, the rubber ball 340 will quickly return to the middle section 351 due to the compression problem. This achieves the purpose of the counterweight 320 automatically balancing the main shaft 110. Then, when the device tilts, it automatically rotates in the opposite direction, which triggers the damping state. The damping pad 220 is inserted into the irregular through groove 210 to achieve dynamic balance compensation. It can automatically achieve stepless adjustment and improve the adaptability of working conditions.
[0042] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A damped insertion balancing device, characterized in that, The utility model relates to a kind of insertion mechanism (100), damping mechanism (200) and balance mechanism (300) of rotary selector (120) and rotary selector (120) are connected, and insertion mechanism (100) includes main shaft (110), rotary selector (120) is sleeved on the outside of main shaft (110), and shell (130) is attached to the outer wall of rotary selector (120);Damping mechanism (200) includes a plurality of special-shaped through slot (210) being opened in the outside of rotary selector (120), and a plurality of damping pads (220) are connected with the inner wall of shell (130), and the damping pad (220) is adapted with special-shaped through slot (210);Balance mechanism (300) includes two ball bearings (310) being sleeved on the outside of main shaft (110), a plurality of counterweights (320) being enclosed in the outside of ball bearing (310), ball frame (330) being connected with the outer wall of counterweight (320), rubber ball (340) being movably connected with ball frame (330), a plurality of arc grooves (350) being opened in the inner wall of shell (130), and a plurality of rubber balls (340) are respectively located in a plurality of arc grooves (350) inside. The shell (130) is composed of a base steel (131) and two extension steels (132), the base steel (131) is integrally formed between the two extension steels (132), and the shell (130) is forged in a split type using 6061-T6 aluminum alloy. The plurality of special-shaped through slots (210) and the plurality of damping pads (220) are equally spaced and arranged in a ring shape, the special-shaped through slots (210) and the damping pads (220) are staggered, the special-shaped through slots (210) are narrow at the top and wide at the bottom, and the damping pads (220) are fixedly connected with the inner wall of the base steel (131). The plurality of arc grooves (350) are respectively located inside the two extension steels (132), and the width of the arc groove (350) gradually decreases from the middle section (351) to the outer section (352).
2. A damping insert balancing device according to claim 1, characterized in that The inner wall of the shell (130) is attached with a plurality of sealing rings (400), the plurality of sealing rings (400) are arranged in two groups, two groups of sealing rings (400) are respectively located inside the two extension steels (132), and the inner wall of the sealing ring (400) is attached with the outer wall of the counterweight (320) with interference.
3. A damping insert balancing device according to claim 2, characterized in that The extension steel (132) near the top of the main shaft (110) is embedded with an observation window (500), the thickness of the observation window (500) is equal to the thickness of the extension steel (132), and the observation window (500) is located between the two arc grooves (350).
4. A damping insert balancing device according to claim 2, characterized in that 5. A damping insert balancing device according to claim 2, characterized in that 6. A damping insert balancing device according to claim 2, characterized in that
Citation Information
Patent Citations
Rotary damper
CN209509881U