A dustproof structure for rotating robotic arms
By installing dustproof rings and heat dissipation parts on the robotic arm, the problems of easy damage to the rubber corrugated sleeve and poor dustproof effect are solved, achieving better dustproof and heat dissipation effects.
Patent Information
- Application Number
- CN202522536965.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-28
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-11-28
AI Technical Summary
The existing rubber corrugated dust cover of the robotic arm is prone to overheating and aging under high-speed rotation, resulting in poor dust protection and dust easily entering the shaft, affecting heat dissipation.
The structure employs a first dustproof ring and a second dustproof ring, combined with a protective shell and a heat dissipation unit, to prevent dust from adhering to the shaft and to cool it down through the heat dissipation unit, thus avoiding the use of a rubber corrugated sleeve.
This improves the dustproof effect of the robotic arm's rotating joint, avoids damage to the rubber corrugated sleeve during high-speed rotation, and ensures good heat dissipation performance.
Smart Images
Figure CN224940072U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of robotic arm technology, and in particular to a dustproof structure for a rotating robotic arm. Background Technology
[0002] A robotic arm is a complex system with high precision, multiple inputs and multiple outputs, high nonlinearity, and strong coupling. Due to its unique operational flexibility, it has been widely used in fields such as industrial assembly and safety explosion protection.
[0003] Currently, the dustproofing is achieved using rubber corrugations, but it still has the following shortcomings: the rubber corrugated dustproof cover is prone to overheating and aging under high-speed rotation, and is easily damaged. Dust can enter the shaft, and the mechanical arm generates heat under high-speed rotation, which affects its heat dissipation and results in poor dustproofing effect. Utility Model Content
[0004] The purpose of this invention is to address the aforementioned shortcomings by providing a dustproof structure for the rotating junction of a robotic arm, thereby improving dustproof performance and facilitating heat dissipation from the rotating junction.
[0005] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a dustproof structure for a rotating robotic arm, comprising a lower rotating arm mounted on a workbench, a rotating shaft rotatably disposed within the lower rotating arm, and an upper rotating arm hinged to the lower rotating arm via the rotating shaft, comprising: The first dustproof ring is set on the upper rotating arm, and a through groove is opened in the lower rotating arm for rotating the first dustproof ring; The second dustproof ring is symmetrically arranged on both sides of the lower rotating arm, and a fixing groove for the second dustproof ring to pass through is opened on the upper rotating arm. The first dustproof ring and the second dustproof ring are used to prevent dust from adhering to the outer wall of the rotating shaft. The protective shell is symmetrically arranged on the second dustproof ring to prevent dust from adhering to the end of the shaft; The heat dissipation unit is located on the second dustproof ring and is used to dissipate heat from the lower rotating arm, the upper rotating arm, and the rotating shaft.
[0006] Furthermore, it also includes: The first cleaning brush is symmetrically arranged on the left and right sides of the lower rotating arm and directly opposite the first dustproof ring, and is used to clean the dust on the first dustproof ring.
[0007] Furthermore, it also includes: Two sets of second cleaning brushes are symmetrically arranged on the left and right sides of the upper rotating arm. Each set of second cleaning brushes is symmetrically arranged on the upper rotating arm and is directly opposite the second dustproof ring.
[0008] Furthermore, the longitudinal section of the second dustproof ring is L-shaped, and there are two second dustproof rings, which are rotatably connected to the first dustproof ring, and the two second dustproof rings are located outside the first dustproof ring.
[0009] Furthermore, the protective shell includes a dustproof shell symmetrically arranged on the second dustproof ring and facing the rotating shaft, and a stud disposed on the dustproof shell for connecting the second dustproof ring.
[0010] Furthermore, the heat dissipation unit includes a heat dissipation box disposed on the lower rotating arm and a return pipe disposed on the heat dissipation box for connecting the second dustproof ring; It also includes a fixing pipe installed on the heat sink for connecting the second dustproof ring and a pump body installed in the middle of the fixing pipe; It also includes a refrigeration unit installed on the heat sink, which is used to cool the gas inside the heat sink.
[0011] The beneficial effects of this utility model are reflected in: This invention utilizes a first dustproof ring on the upper rotating arm and a second dustproof ring on the lower rotating arm. When the upper and lower rotating arms rotate via a shaft, the upper rotating arm drives the first dustproof ring to rotate within a groove in the lower rotating arm, and a fixing groove on the upper rotating arm rotates on the second dustproof ring. The first and second dustproof rings prevent dust from adhering to the hinge joint of the upper and lower rotating arms. Two dustproof shells further protect the end of the shaft from dust, preventing dust from adhering to the shaft and avoiding wear. This also avoids the need for corrugated rubber sleeves, preventing damage during high-speed, long-term operation and improving dustproof performance. A pump on the heat dissipation unit draws gas from the hinge joint of the upper and lower rotating arms into a heat dissipation box, where a chiller cools the gas. The gas then returns through a return pipe to the hinge joint, facilitating heat dissipation during the rotation of the robotic arm. Attached Figure Description
[0012] Figure 1 This is a three-dimensional structural view of the present invention; Figure 2 This is a three-dimensional structural cross-sectional view of the present invention; Figure 3 This is a cross-sectional view of the three-dimensional structure of this utility model from another perspective; Figure 4 This is a three-dimensional structural view of the upper rotating arm and the first dustproof ring of this utility model; Figure 5 This is a three-dimensional structural cross-sectional view of the lower rotating arm and the second dustproof ring of this utility model.
[0013] In the picture: 1. Lower swing arm; 11. Through slot; 2. Upper swing arm; 21. Fixing groove; 3. Shaft; 4. First dustproof ring; 5. Second dustproof ring; 6. Protective housing; 61. Dustproof housing; 62. Studs; 7. First cleaning brush; 8. Second cleaning brush; 9. Heat dissipation unit; 91. Heat dissipation box; 92. Return pipe; 93. Fixed pipe; 94. Pump body; 95. Refrigeration unit. Detailed Implementation
[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.
[0015] Please see Figure 1-5 This utility model discloses a dustproof structure for a rotating robotic arm, comprising a lower rotating arm 1 mounted on a workbench, a rotating shaft 3 rotatably disposed within the lower rotating arm 1, and an upper rotating arm 2 hinged to the lower rotating arm 1 via the rotating shaft 3, including: The first dustproof ring 4 is set on the upper rotating arm 2. A through groove 11 for rotating the first dustproof ring 4 is opened in the lower rotating arm 1. The through groove 11 is arc-shaped and fits the first dustproof ring 4. The first dustproof ring 4 and the upper rotating arm 2 are fixedly installed by welding or bolts and flanges. The maximum angle of rotation between the upper rotating arm 2 and the lower rotating arm 1 through the rotating shaft 3 is 180 degrees. The second dustproof ring 5 is symmetrically arranged on both sides of the lower rotating arm 1, and the upper rotating arm 2 has a fixing groove 21 for the second dustproof ring 5 to pass through. The first dustproof ring 4 and the second dustproof ring 5 are used to prevent dust from adhering to the outer wall of the rotating shaft 3. There are two second dustproof rings 5. The second dustproof ring 5 is attached to the first dustproof ring 4 and is rotatably connected to the first dustproof ring 4 to prevent dust from entering the rotating shaft 3 through the junction of the first dustproof ring 4 and the second dustproof ring 5. The protective shell 6 is symmetrically arranged on the second dustproof ring 5 to prevent dust from adhering to the end of the rotating shaft 3. The cross-section of the protective shell 6 is circular, and the longitudinal section of the protective shell 6 is U-shaped. The other end of the rotating shaft 3 passes through the protective shell 6. The rotating shafts 3 are fixedly installed by bolts and flanges. The drive source is installed at the end of the rotating shaft 3. The drive source is an electric motor or motor. The heat dissipation part 9 is disposed on the second dustproof ring 5 and is used to dissipate heat from the lower rotating arm 1, the upper rotating arm 2 and the rotating shaft 3. The heat dissipation part 9 is fixedly installed to the lower rotating arm 1 by bolts. There is a rotation gap between the lower rotating arm 1 and the upper rotating arm 2. The first dustproof ring 4 and the second dustproof ring 5 are used to prevent dust from the rotation gap and the rotating shaft 3.
[0016] In use, the rotating shaft 3 drives the upper rotating arm 2 to rotate on the lower rotating arm 1. The first dustproof ring 4 on the upper rotating arm 2 rotates in the through groove 11 in the lower rotating arm 1, and the fixing groove 21 on the upper rotating arm 2 rotates in contact with the second dustproof ring 5. The first dustproof ring 4 and the second dustproof ring 5 are used to prevent dust from entering the rotating shaft 3. Then, the end of the rotating shaft 3 is protected by the protective shell 6 to prevent dust from adhering to the rotating shaft 3. Then, the heat dissipation part 9 cools down the upper rotating arm 2, the lower rotating arm 1, and the rotating shaft 3, improving the dustproof effect and avoiding the use of rubber corrugated dustproof sleeves, which can easily cause overheating and aging under high-speed rotation.
[0017] In a specific embodiment, it also includes: The first cleaning brush 7 is symmetrically arranged on the left and right sides of the lower rotating arm 1 and directly opposite the first dustproof ring 4. It is used to clean the dust on the first dustproof ring 4. The first cleaning brush 7 is fixedly installed to the lower rotating arm 1 by bolts to clean the dust on the first dustproof ring 4.
[0018] In one embodiment, it further includes: Two sets of second cleaning brushes 8 are symmetrically arranged on the left and right sides of the upper rotating arm 2. Each set of second cleaning brushes 8 is symmetrically arranged on the upper rotating arm 2 and directly facing the second dustproof ring 5. There are two second cleaning brushes 8 in each set. The second cleaning brushes 8 clean the dust on the second dustproof ring 5 and the dust at the junction of the second dustproof ring 5 and the first dustproof ring 4, so as to prevent dust from adhering to the second dustproof ring 5 and the first dustproof ring 4.
[0019] In a specific embodiment, the longitudinal section of the second dustproof ring 5 is L-shaped, there are two second dustproof rings 5, and the two second dustproof rings 5 are rotatably connected to the first dustproof ring 4. The two second dustproof rings 5 are located outside the first dustproof ring 4, and the second dustproof rings 5 are sleeved with the first dustproof ring 4.
[0020] In one embodiment, the protective shell 6 includes a dust cover 61 symmetrically arranged on the second dust cover 5 and facing the rotating shaft 3, and a stud 62 arranged on the dust cover 61 for connecting the second dust cover 5. The dust cover 61 and the second dust cover 5 are fixedly installed by the stud 62. The dust cover 61 is used to prevent dust at the junction of the rotating shaft 3 and the second dust cover 5, so as to prevent dust from wearing the rotating shaft 3 and the second dust cover 5.
[0021] In a specific embodiment, the heat dissipation unit 9 includes a heat dissipation box 91 disposed on the lower rotating arm 1 and a return pipe 92 disposed on the heat dissipation box 91 for connecting the second dustproof ring 5. The heat dissipation box 91 is provided with an air inlet pipe and a dustproof net on the air inlet pipe. The heat dissipation box 91 is provided with an exhaust pipe and a dustproof net on the exhaust pipe. The heat dissipation box 91 provides dust-free gas between the rotating shaft 3, the upper rotating arm 2 and the lower rotating arm 1 for cooling and to avoid damaging the rotating shaft 3. It also includes a fixing pipe 93 set on the heat sink 91 for connecting the second dust ring 5 and a pump body 94 set in the middle of the fixing pipe 93. The fixing pipe 93 is used to connect the rotating shaft 3 on the second dust ring 5, the gap between the upper rotating arm 2 and the lower rotating arm 1 and the heat sink 91. The pump body 94 provides power for the gas. It also includes a refrigeration unit 95 installed on the heat sink 91, which is used to cool the gas inside the heat sink 91. The refrigeration unit 95 is used to cool and cool the gas inside the heat sink 91.
[0022] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.
[0023] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0024] Additionally, "multiple" refers to two or more.
[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A dustproof structure for a rotating robotic arm, comprising a lower rotating arm (1) mounted on a workbench, a rotating shaft (3) rotatably disposed within the lower rotating arm (1), and an upper rotating arm (2) hinged to the lower rotating arm (1) via the rotating shaft (3), characterized in that, include: The first dustproof ring (4) is set on the upper rotating arm (2), and a through groove (11) for rotating the first dustproof ring (4) is opened in the lower rotating arm (1). The second dustproof ring (5) is symmetrically arranged on both sides of the lower rotating arm (1), and the upper rotating arm (2) has a fixing groove (21) for the second dustproof ring (5) to pass through. The first dustproof ring (4) and the second dustproof ring (5) are used to prevent dust from adhering to the outer wall of the rotating shaft (3). The protective shell (6) is symmetrically arranged on the second dustproof ring (5) to prevent dust from adhering to the end of the rotating shaft (3); The heat dissipation unit (9) is provided on the second dustproof ring (5) to dissipate heat from the lower rotating arm (1), the upper rotating arm (2) and the rotating shaft (3).
2. The dustproof structure for a rotating robotic arm according to claim 1, characterized in that: Also includes: The first cleaning brush (7) is symmetrically arranged on the left and right sides of the lower rotating arm (1) and directly opposite the first dustproof ring (4) to clean the dust on the first dustproof ring (4).
3. The dustproof structure for a rotating robotic arm according to claim 1, characterized in that: Also includes: Two sets of second cleaning brushes (8) are symmetrically arranged on the left and right sides of the upper rotating arm (2). Each set of second cleaning brushes (8) is symmetrically arranged on the upper rotating arm (2) and is directly opposite the second dustproof ring (5).
4. The dustproof structure for a rotating robotic arm according to claim 3, characterized in that: The longitudinal section of the second dustproof ring (5) is L-shaped. There are two second dustproof rings (5), and the two second dustproof rings (5) are rotatably connected to the first dustproof ring (4). The two second dustproof rings (5) are located outside the first dustproof ring (4).
5. The dustproof structure for a rotating robotic arm according to claim 1, characterized in that: The protective shell (6) includes a dust shell (61) symmetrically arranged on the second dust ring (5) and facing the rotating shaft (3) and a stud (62) arranged on the dust shell (61) for connecting the second dust ring (5).
6. The dustproof structure for a rotating robotic arm according to claim 1, characterized in that: The heat dissipation part (9) includes a heat dissipation box (91) disposed on the lower rotating arm (1) and a return pipe (92) disposed on the heat dissipation box (91) for connecting the second dustproof ring (5). It also includes a fixing pipe (93) installed on the heat sink (91) for connecting the second dust ring (5) and a pump body (94) installed in the middle of the fixing pipe (93). It also includes a refrigeration unit (95) installed on the heat sink (91) for cooling the gas inside the heat sink (91).