Reduction gearbox
By installing a heat dissipation assembly on the top of the gearbox, including a heat sink, a fan, and a dust filter, the heat dissipation problem of the gearbox under high load operation is solved, achieving efficient heat dissipation and dust prevention, and improving the stability and service life of the gearbox.
Patent Information
- Application Number
- CN202520690631.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-14
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-04-14
AI Technical Summary
When the gearbox operates under high load, its heat dissipation performance is insufficient, which leads to an increase in internal temperature, affecting performance and service life.
A heat dissipation assembly, including a heat sink, fan, dust filter, and limiting components, is installed on the top of the gearbox to form an airflow channel. The fan dissipates heat through the through-hole, the dust filter prevents dust from entering, the limiting components ensure the dust filter is secure, and the bracket fixes the fan to reduce vibration.
It effectively improves heat dissipation, prevents dust from entering, and enhances the stability and service life of the gearbox.
Smart Images
Figure CN223754607U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of reduction gearbox, more specifically, relate to a reduction gearbox. BACKGROUND
[0002] The reduction gearbox generates a lot of heat inside when using, mainly relies on the self heat dissipation, however, when the reduction gearbox is in high load operation state for a long time, the self heat dissipation performance often cannot satisfy the requirement, leads to the internal temperature gradually increasing, and the continuous high temperature environment can influence the performance of the reduction gearbox, even influences the service life of the reduction gearbox.
[0003] Therefore, a new scheme needs to be proposed to solve the above problems. CONTENT OF THE UTILITY MODEL
[0004] The utility model aims at overcoming the insufficient of prior art, provide a reduction gearbox.
[0005] In order to realize the above purpose, the utility model adopts the following technical scheme:
[0006] A reduction gearbox, including the reduction gearbox body, and install the heat dissipation subassembly at the top of the reduction gearbox body, the heat dissipation subassembly includes the heat dissipation box installed at the top of the reduction gearbox body, the top of the reduction gearbox body is provided with the through slot being linked with the inner chamber of the heat dissipation box, the upper end of the heat dissipation box is installed with the cover plate, the middle part of the cover plate is provided with multiple first through holes, the lower of the cover plate is equipped with the first dust screen, the first dust screen is through the first limiting component and is in contact with the lower surface of the cover plate, and all first through holes are covered, the first dust screen and the first limiting component are detachably connected, the inside of the heat dissipation box is installed with the fan, the both sides of the heat dissipation box are provided with the second through hole, the heat dissipation box is located the second through hole position and is equipped with the second dust screen, the second dust screen is through the second limiting component and is in contact with the inner wall of the heat dissipation box, and the second through hole is covered, the cover plate covers the upper end of the heat dissipation box, and the lower surface of the cover plate is in contact with the upper side wall of the second dust screen.
[0007] Further, the outside of the fan is installed with the support, the support is cross-shaped structure, and the four ends of the support are fixed to the inner wall of the heat dissipation box.
[0008] Further, the first limiting component includes the first limiting block, the second limiting block and the clamping block installed on the both sides of the first dust screen, the first limiting block is located below the cover plate, the second limiting block is L-shaped structure, the upper surface of the second limiting block is fixed to the lower surface of the cover plate, the lower surface of the second limiting block is fixed to the upper surface of the first limiting block, the cover plate, the first limiting block and the second limiting block are combined to form the clamping groove for embedding the clamping block, the first dust screen is constrained by embedding the clamping block in the clamping groove, and the upper surface of the first dust screen is in contact with the lower surface of the cover plate.
[0009] Further, the first limiting assembly further comprises a first limiting plate, a second limiting plate, a fixing rod and a handle, the first limiting plate and the second limiting plate are cylindrical structures, and the first limiting plate and the second limiting plate are connected through the fixing rod, the handle is installed on the lower surface of the second limiting plate, the upper surface of the first limiting block is provided with a first limiting groove for embedding the first limiting plate, the lower surface of the first limiting block is provided with a second limiting groove for embedding the second limiting plate, the fixing rod penetrates through the first limiting groove and the second limiting groove and is provided, a spring is sleeved on the fixing rod, and the two ends of the spring abut against the lower surface of the first limiting plate and the bottom wall of the first limiting groove respectively, and the lower surface of the clamping block is provided with a third limiting groove for embedding the first limiting plate.
[0010] Further, the upper surface of the second limiting plate is provided with two groups of limiting columns, the two groups of limiting columns are symmetrically arranged, the bottom wall of the second limiting groove is provided with a limiting hole for embedding the limiting column, and the limiting hole is in communication with the second limiting groove.
[0011] Further, the second limiting assembly comprises a limiting frame installed on the inner wall of the heat dissipation box and corresponding to the second through hole, the limiting frame is in U-shaped structure, the second dust screen is constrained in the limiting frame, and when the cover plate covers the upper end of the heat dissipation box, the upper side wall and the lower side wall of the second dust screen abut against the lower surface of the cover plate and the inner wall of the fixed end of the limiting frame respectively.
[0012] Further, the end faces of the two free ends of the limiting frame, the upper side wall of the second dust screen and the end face of the upper end of the heat dissipation box are flush.
[0013] Further, the left and right sides of the second dust screen are provided with limiting strips, and the inner walls of the two free ends of the limiting frame are provided with fourth limiting grooves for embedding the limiting strips.
[0014] The beneficial effects of the utility model are:
[0015] 1. In the utility model, the multiple first through holes on the top of the cover plate and the second through holes on the two sides of the heat dissipation box are combined to form an air circulation channel, the fan discharges the heat generated by the operation of the speed reducer body outward through the multiple first through holes, and the external air enters the inside of the heat dissipation box through the second through holes, so that the heat dissipation effect and efficiency are effectively improved.
[0016] 2. The utility model discloses, first dust screen and second dust screen are used for preventing dust impurity from entering the inside heat dissipation box, first limit component is from longitudinal and lateral to the constraint of first dust screen simultaneously, second limit component is from longitudinal and lateral to the constraint of second dust screen simultaneously, prevent first dust screen and second dust screen from loosening, shaking due to air flow impact or equipment vibration, thereby influence dustproof effect, simultaneously first dust screen and first limit component, second dust screen and second limit component adopt detachable mode connection, convenient to dismount and replace.
[0017] 3. The utility model discloses, through setting up support, support firmly installs fan in the inside heat dissipation box through multi-point fixed mode, effectively reduces the vibration and displacement of fan operation, improves the stability of overall structure, and support also provides uniform support for fan simultaneously, ensures the air flow passage between fan and heat dissipation box unobstructed, improves the heat dissipation efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is a structural schematic diagram of the reduction gearbox in the embodiment;
[0019] Figure 2 It is a structural schematic diagram of the heat dissipation box in the embodiment;
[0020] Figure 3 It is Figure 2 The enlarged view of A part in the embodiment;
[0021] Figure 4 It is a split structural schematic diagram of first dust screen and cover plate in the embodiment;
[0022] Figure 5 It is a connection structural schematic diagram of first limit block and second limit block in the embodiment;
[0023] Figure 6 It is a structural schematic diagram of first limit component in the embodiment;
[0024] Figure 7 It is a use schematic diagram of first limit component in the embodiment.
[0025] The utility model discloses, the fixed rod 56 of first limit component 5, the handle 57 of first limit component 5, the spring 58 of first limit component 5, the clamping groove 59 of first limit component 5, the fan 6 of second dust screen 7, the second limit component 8 of second dust screen 7, the limit frame 81 of second dust screen 7, the limit strip 82 of second dust screen 7, the fourth limit slot 83 of second dust screen 7, the support 9 of second dust screen 7, the reduction gearbox body 1, the through slot 101, the heat dissipation box 2, the second through hole 201, the cover plate 3, the first dust screen 4, the first limit block 51, the first limit slot 511, the second limit slot 512, the second limit block 52, the clamping block 53, the third limit slot 531, the first limit plate 54, the second limit plate 55, the limit column 551, the limit hole 552, the handle 57, the spring 58, the clamping groove 59, the fan 6, the second dust screen 7, the second limit component 8, the limit frame 81, the limit strip 82, the fourth limit slot 83, the support 9. DETAILED DESCRIPTION
[0026] 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 some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] Example: A gearbox, such as Figures 1-7 As shown, the device includes a gearbox body 1 and a heat dissipation assembly mounted on top of the gearbox body 1. The heat dissipation assembly is used to assist the gearbox body 1 in dissipating heat. Specifically, the heat dissipation assembly includes a heat dissipation box 2 fixedly mounted on top of the gearbox body 1. The heat dissipation box 2 is a box-shaped structure with open top and bottom. A through groove 101 communicating with the inner cavity of the heat dissipation box 2 is provided on the top of the gearbox body 1. A cover plate 3 for sealing the heat dissipation box 2 is installed on the upper end of the heat dissipation box 2. The cover plate 3 is hinged to the heat dissipation box 2, and the heat dissipation box 2 can be sealed and opened by flipping the cover plate 3.
[0028] Furthermore, the cover plate 3 has multiple sets of first through holes 301 in the middle, arranged in a rectangular array. A first dustproof net 4 is provided below the cover plate 3. The first dustproof net 4 abuts against the lower surface of the cover plate 3 via a first limiting component 5, covering all the first through holes 301. The first dustproof net 4 and the first limiting component 5 are detachably connected. A fan 6 is installed inside the heat sink 2. Second through holes 201 are provided on both sides of the heat sink 2. A second dustproof net 7 is provided at the location of the second through holes 201. The second dustproof net 7 abuts against the inner wall of the heat sink 2 via a second limiting component 8, covering the second through holes 201. When the cover plate 3 closes the upper end of the heat sink 2, the lower surface of the cover plate 3 abuts against the upper side wall of the second dustproof net 7. Both the first dustproof net 4 and the second dustproof net 7 include dustproof paper and a frame. The frame has a square structure, and the dustproof paper is installed on the frame, which supports the dustproof paper.
[0029] During use, the heat generated by the gearbox body 1 enters the interior of the heat sink 2 through the through slot 101. Multiple sets of first through holes 301 on the top of the cover plate 3 and second through holes 201 on both sides of the heat sink 2 combine to form an airflow channel. When the fan 6 is activated, it exhausts the heat generated by the gearbox body 1 outwards through the multiple sets of first through holes 301, while external air enters the interior of the heat sink 2 through the second through holes 201. The first dustproof mesh 4 and the second dustproof mesh 7 prevent dust and impurities from entering the interior of the heat sink 2. The first through holes 301 are arranged in a rectangular array to ensure even airflow distribution and improve heat dissipation.
[0030] Furthermore, such as Figure 2As shown, the outer side of the fan 6 is provided with a support 9, which is in a cross structure, and four ends of the support 9 are fixed to the inner walls of the four sides of the heat dissipation box 2. By arranging the support 9, the cross-shaped support 9 firmly installs the fan 6 in the heat dissipation box 2 through a multi-point fixing mode, effectively reduces the vibration and displacement of the fan 6 during operation, improves the stability of the overall structure, and at the same time, the cross-shaped support 9 also provides uniform support for the fan 6, ensures the smooth airflow passage between the fan 6 and the heat dissipation box 2, and improves the heat dissipation efficiency.
[0031] Further, as shown in the drawings, Figures 4-5 As shown, the first limiting assembly 5 includes a first limiting block 51, a second limiting block 52, and a clamping block 53 arranged on both sides of the first dustproof net 4. The first limiting block 51 is located below the cover plate 3, the second limiting block 52 is in an L-shaped structure, the upper surface of the second limiting block 52 is fixed to the lower surface of the cover plate 3, and the lower surface of the second limiting block 52 is fixed to the upper surface of the first limiting block 51, that is, the first limiting block 51 is fixed to the lower surface of the cover plate 3 through the second limiting block 52, and at the same time, the cover plate 3, the first limiting block 51 and the second limiting block 52 are combined to form a clamping groove 59 for embedding the clamping block 53, and the first dustproof net 4 is constrained to the cover plate 3 by embedding the clamping block 53 in the clamping groove 59.
[0032] Since the upper surface of the first dustproof net 4 is flush with the upper surface of the clamping block 53, the lower surface of the first dustproof net 4 is flush with the lower surface of the clamping block 53, and the thickness of the clamping block 53 is matched with the groove depth of the clamping groove 59, when the clamping block 53 is embedded in the clamping groove 59, the upper surface of the first dustproof net 4 abuts and contacts the lower surface of the cover plate 3. By abutting and contacting the first dustproof net 4 and the cover plate 3, it is avoided or reduced that dust and impurities enter the heat dissipation box 2 through the gap between the first dustproof net 4 and the cover plate 3. By using the clamping block 53 and the clamping groove 59, the first dustproof net 4 can be quickly disassembled without the aid of tools, and the first dustproof net 4 is convenient to replace; at the same time, the precise plug-in of the clamping block 53 and the clamping groove 59 can ensure that the first dustproof net 4 remains stable after installation. By arranging the second limiting block 52, the position of the clamping block 53 in the clamping groove 59 can be limited by using the L-shaped structure of the second limiting block 52, so that the clamping block 53 does not separate from the clamping groove 59 when the cover plate 3 is opened, so that the first dustproof net 4 is separated from the cover plate 3, and the dustproof effect is affected.
[0033] Further, as shown in the drawings, Figures 4-7As shown, the first limiting assembly 5 further comprises a first limiting plate 54, a second limiting plate 55, a fixing rod 56 and a handle 57. The first limiting plate 54 and the second limiting plate 55 are both in a cylindrical structure, and the first limiting plate 54 and the second limiting plate 55 are connected through the fixing rod 56. The handle 57 is installed on the lower surface of the second limiting plate 55. The upper surface of the first limiting block 51 is provided with a first limiting groove 511 for embedding the first limiting plate 54. The lower surface of the first limiting block 51 is provided with a second limiting groove 512 for embedding the second limiting plate 55. The fixing rod 56 penetrates through the first limiting groove 511 and the second limiting groove 512. The fixing rod 56 is provided with a spring 58. The two ends of the spring 58 respectively abut against the lower surface of the first limiting plate 54 and the bottom wall of the first limiting groove 511. The lower surface of the clamping block 53 is provided with a third limiting groove 531 for embedding the first limiting plate 54.
[0034] When the first dust screen 4 is constrained by being embedded into the clamping groove 59 through the clamping block 53, since the spring 58 is in a compressed state, the spring 58 exerts a force on the first limiting plate 54, so that the first limiting plate 54 is embedded into the third limiting groove 531. By exerting a longitudinal pressure, the first dust screen 4 is limited, so as to prevent the first dust screen 4 from loosening and shaking due to air flow impact or equipment vibration. At the same time, since the first limiting plate 54 moves upward, the first limiting plate 54 drives the second limiting plate 55 to move upward through the fixing rod 56, so that the second limiting plate 55 is embedded into the second limiting groove 512. The second limiting groove 512 is matched with the second limiting plate 55. When the second limiting plate 55 is embedded into the second limiting groove 512, the lower surface of the second limiting plate 55 is arranged flush with the groove wall of the second limiting groove 512. By this arrangement, it can be known whether the first limiting plate 54 is embedded into the third limiting groove 531 or not, so as to limit the first dust screen 4 by exerting a pressure.
[0035] As a preferred, as Figure 6 and Figure 7As shown, the upper surface of the second limiting plate 55 is provided with two groups of limiting columns 551, which are symmetrically arranged. The bottom wall of the second limiting groove 512 is provided with limiting holes 552 for the limiting columns 551 to be embedded in, and the limiting holes 552 are in communication with the second limiting groove 512. When the first dust screen 4 is disassembled, the second limiting plate 55 can be separated from the second limiting groove 512 by pulling down the handle 57. At the same time, the second limiting plate 55 drives the first limiting plate 54 to separate from the third limiting groove 531 through the fixed rod 56, so that the first limiting plate 54 is embedded in the first limiting groove 511, and the spring 58 is further compressed. By setting the positioning column, after the handle 57 is pulled down, the limiting column 551 is turned to one side of the limiting hole 552 by rotating the handle 57 (such as 90°), and then the handle 57 is released. Under the action of the spring 58, the second limiting plate 55 is partially embedded in the second limiting groove 512, and the limiting column 551 abuts against the bottom wall of the second limiting groove 512. At the same time, the first limiting plate 54 moves upward to a certain extent, but it is still located in the first limiting groove 511. Without affecting the disengagement of the clamping block 53 from the clamping groove 59, the first limiting plate 54 is also limited, thereby realizing the effect of convenient disassembly.
[0036] Further, as shown in Figure 2 and Figure 3 The second limiting assembly 8 includes a limiting frame 81 installed on the inner wall of the heat dissipation box 2 and corresponding to the second through hole 201. The limiting frame 81 is located at the edge of the second through hole 201 and has a U-shaped structure including two free ends and one fixed end. The second dust screen 7 is installed on the limiting frame 81 and is constrained by the limiting frame 81. When the cover plate 3 covers the upper end of the heat dissipation box 2, the upper side wall and the lower side wall of the second dust screen 7 abut against the lower surface of the cover plate 3 and the inner wall of the fixed end of the limiting frame 81, respectively. The cover plate 3 and the limiting frame 81 limit the second dust screen 7 from both the top and the bottom to prevent the second dust screen 7 from loosening and shaking due to equipment vibration.
[0037] As a preferred, the end faces of the two free ends of the limiting frame 81, the upper side wall of the second dust screen 7 and the end face of the upper end of the heat dissipation box 2 are flushly arranged. By this arrangement, it can be known whether the second dust screen 7 is installed in place, and the cover plate 3 is prevented from pressing the second dust screen 7.
[0038] Further, the second dust screen 7 is provided with limiting strips 82 on the left and right sides. The inner walls of the two free ends of the limiting frame 81 are provided with fourth limiting grooves 83 for the limiting strips 82 to be embedded in. The fourth limiting grooves 83 are matched with the limiting strips 82. When the second dust screen 7 is constrained by being embedded in the fourth limiting grooves 83 through the limiting strips 82, the outer surface of the second dust screen 7 abuts against the inner wall of the heat dissipation box 2. By abutting and contacting the second dust screen 7 and the inner wall of the heat dissipation box 2, the dust and impurities entering the heat dissipation box 2 through the gap between the second dust screen 7 and the heat dissipation box 2 is avoided or reduced.
[0039] The above merely describes preferred embodiments of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solution falling within the concept of the present application shall fall within the protection scope of the present application. It should be noted that, for ordinary skilled persons in the art, some improvements and refinements without departing from the principles of the present application shall also be considered as falling within the protection scope of the present application.
Claims
1. A reduction gearbox comprising a reduction gearbox body (1) and a heat dissipation assembly mounted on top of the reduction gearbox body (1), characterized in that, The heat dissipation assembly comprises a heat dissipation box (2) mounted on the top of a reduction gearbox body (1), the top of the reduction gearbox body (1) is provided with a through slot (101) in communication with the inner cavity of the heat dissipation box (2), the upper end of the heat dissipation box (2) is provided with a cover plate (3), the middle part of the cover plate (3) is provided with a plurality of first through holes (301), the lower part of the cover plate (3) is provided with a first dust screen (4), the first dust screen (4) is in abutment with the lower surface of the cover plate (3) through a first limiting assembly (5) and covers all the first through holes (301), the first dust screen (4) and the first limiting assembly (5) are detachably connected, the inside of the heat dissipation box (2) is provided with a fan (6), the two sides of the heat dissipation box (2) are provided with second through holes (201), the heat dissipation box (2) is provided with a second dust screen (7) at the position of the second through holes (201), the second dust screen (7) is in abutment with the inner wall of the heat dissipation box (2) through a second limiting assembly (8) and covers the second through holes (201), the lower surface of the cover plate (3) is in abutment with the upper side wall of the second dust screen (7) when the cover plate (3) covers the upper end of the heat dissipation box (2).
2. A reduction gearbox according to claim 1, characterised in that The outer side of the fan (6) is provided with a support (9), the support (9) is in a cross-shaped structure, and the four ends of the support (9) are fixed to the inner walls of the heat dissipation box (2) respectively.
3. A reduction gearbox according to claim 1, characterised in that The first limiting assembly (5) comprises a first limiting block (51), a second limiting block (52) and clamping blocks (53) mounted on the two sides of the first dust screen (4), the first limiting block (51) is located below the cover plate (3), the second limiting block (52) is in an L-shaped structure, the upper surface of the second limiting block (52) is fixed to the lower surface of the cover plate (3), the lower surface of the second limiting block (52) is fixed to the upper surface of the first limiting block (51), the cover plate (3), the first limiting block (51) and the second limiting block (52) are combined to form a clamping groove (59) for embedding the clamping blocks (53), the first dust screen (4) is constrained by embedding the clamping blocks (53) in the clamping groove (59), and the upper surface of the first dust screen (4) is in abutment with the lower surface of the cover plate (3).
4. A reduction gearbox according to claim 3, characterised in that The first limiting assembly (5) further comprises a first limiting plate (54), a second limiting plate (55), a fixed rod (56) and a handle (57), the first limiting plate (54) and the second limiting plate (55) are cylindrical structures, and the first limiting plate (54) and the second limiting plate (55) are connected through the fixed rod (56), the handle (57) is installed on the lower surface of the second limiting plate (55), the upper surface of the first limiting block (51) is provided with a first limiting groove (511) for embedding the first limiting plate (54), the lower surface of the first limiting block (51) is provided with a second limiting groove (512) for embedding the second limiting plate (55), the fixed rod (56) penetrates through the first limiting groove (511) and the second limiting groove (512), the fixed rod (56) is sleeved with a spring (58), and the two ends of the spring (58) respectively abut against the lower surface of the first limiting plate (54) and the bottom wall of the first limiting groove (511), the lower surface of the clamping block (53) is provided with a third limiting groove (531) for embedding the first limiting plate (54).
5. A reduction gearbox according to claim 4, characterised in that The upper surface of the second limiting plate (55) is provided with two groups of limiting columns (551), the two groups of limiting columns (551) are symmetrically arranged, the bottom wall of the second limiting groove (512) is provided with a limiting hole (552) for embedding the limiting column (551), and the limiting hole (552) is communicated with the second limiting groove (512).
6. A reduction gearbox according to claim 1, characterised in that The second limiting assembly (8) comprises a limiting frame (81) installed on the inner wall of the heat dissipation box (2) and corresponding to the second through hole (201), the limiting frame (81) is in a U-shaped structure, the second dustproof net (7) is constrained in the limiting frame (81), and when the cover plate (3) covers the upper end of the heat dissipation box (2), the upper side wall and the lower side wall of the second dustproof net (7) abut against the lower surface of the cover plate (3) and the inner wall of the fixed end of the limiting frame (81) respectively.
7. A reduction gearbox according to claim 6, characterised in that The end faces of the two free ends of the limiting frame (81), the upper side wall of the second dustproof net (7) and the end face of the upper end of the heat dissipation box (2) are flush.
8. A reduction gearbox according to claim 6, characterised in that The left and right sides of the second dustproof net (7) are provided with limiting strips (82), and the inner walls of the two free ends of the limiting frame (81) are provided with fourth limiting grooves (83) for embedding the limiting strips (82). The left and right sides of the second dustproof net (7) are provided with limiting strips (82), and the inner walls of the two free ends of the limiting frame (81) are provided with fourth limiting grooves (83) for embedding the limiting strips (82).