Power distribution box

Abstract

The technical scheme belongs to the technical field of mechanical equipment, and particularly relates to a power distribution box which comprises a box body, the box body is provided with a mounting cavity, the box body is provided with a driving worm, the driving worm is rotatably arranged in the mounting cavity, the box body is further provided with at least three driving assemblies, and each driving assembly comprises a driven worm gear and a driven rotating shaft coaxially arranged on the driven worm gear; a plurality of driven worm gears are rotatably arranged on the peripheral side of the driving worm respectively, the driven worm gears are meshed with the driven worm gears, a plurality of connecting holes are correspondingly formed in the box body, the output ends of the driven rotating shafts penetrate out of the connecting holes in a one-to-one correspondence mode, the output ends of the driven rotating shafts are connected with the output end of the driving worm through a driving device, and the driving worm receives input power and rotates; the driving worm drives the three driven worm gears meshed with the peripheral side of the driving worm to rotate synchronously, so that the three driven rotating shafts are driven to rotate synchronously, power transmission is achieved, the output ends of the three driven rotating shafts are connected with external equipment or a mechanism, efficient power distribution is achieved, and the applicability and flexibility of the power distribution box are improved.

Description

Technical Field

[0001] This technical solution relates to the field of mechanical equipment technology, and specifically refers to a power distribution box. Background Technology

[0002] A power distribution box is used to receive and distribute the power of an engine. It can effectively distribute power to the output shafts of multiple drive ends, and transmit it to each drive wheel, other mechanical equipment, or specific working device, thereby meeting different working needs or driving different equipment.

[0003] Existing power distribution boxes typically incorporate a worm gear structure, where a worm drives a turbine. This worm gear drive method limits the range and flexibility of power distribution to some extent. As the number of driven objects increases, the transmission efficiency is low, and there are insufficient power requirements. It cannot fully meet the needs of other power distribution applications, resulting in low applicability and requiring improvement. Summary of the Invention

[0004] This technical solution aims to improve the limited applicability of existing power distribution boxes by providing a power distribution box.

[0005] The purpose of this technical solution is achieved as follows:

[0006] A power distribution box includes a housing with a mounting cavity. The housing is provided with a drive worm gear rotatably disposed within the mounting cavity. The housing is also provided with at least three drive components. Each drive component includes a driven worm wheel and a driven shaft coaxially disposed on the driven worm wheel. A plurality of driven worm wheels are rotatably disposed on the periphery of the drive worm gear, and each driven worm wheel meshes with the driven worm wheel. The housing is provided with a plurality of connecting holes, and the output ends of the driven shafts pass through the connecting holes one by one.

[0007] Through the above technical solution, when a power distribution box is in normal use, at least three drive components are configured in the mounting cavity. The output end of the drive worm is connected to the drive device. The drive worm receives the input power and starts to rotate. The drive worm drives the three driven worm wheels that mesh with it on its periphery to rotate synchronously, thus transmitting power. Since each driven worm wheel has a corresponding driven shaft fixed coaxially, the synchronous rotation of the three driven shafts is achieved. The output ends of the three driven shafts pass through corresponding connection holes to the outside of the box and are connected to external equipment or mechanisms, thereby achieving efficient power distribution and improving the applicability and flexibility of the power distribution box.

[0008] Preferably, the housing is provided with a fixing protrusion ring, the fixing protrusion ring protrudes from the inner wall of the housing at the position corresponding to the connecting hole, a fixing groove is formed on the inner side of the fixing protrusion ring, a bearing is provided in the fixing groove, and one end of the driven rotating shaft passes through the bearing.

[0009] With the above technical solution, a fixed protruding ring protrudes from the inner side of the housing. A matching bearing is installed in the fixed groove of the fixed protruding ring. One end of the driven shaft is aligned with the bearing and passes through it. Through the support and guidance provided by the bearing, it can achieve more stable and smooth rotation.

[0010] Preferably, the driven shaft has a platform stage, and a limiting surface is provided on the side of the platform stage near the fixed convex ring, so that the bearing is restricted between the limiting surface and the bottom of the fixed groove.

[0011] Through the above technical solution, an effective limiting space is formed between the limiting surface one near the fixed convex ring on the stage and the bottom of the fixed groove one, which is used to install and limit the position of bearing one, prevent the bearing one from axially moving or falling off during use, reduce swaying, and improve stability.

[0012] Preferably, the housing is provided with a mounting hole 1, which is opened on the opposite side end face of the housing and the connecting hole 1. The cross-sectional area of ​​the mounting hole 1 is larger than the cross-sectional area of ​​the drive component, so that the drive component can be installed into the mounting cavity after passing through the mounting hole 1.

[0013] Through the above technical solution, the cross-sectional area of ​​mounting hole one is designed to be larger than the cross-sectional area of ​​the drive component, so that the drive component can easily enter the mounting cavity of the housing through mounting hole one, ensuring that the drive component can be installed or removed normally.

[0014] Preferably, the housing is provided with a fixing seat, the fixing seat includes a fixing part and an embedding part disposed inside the fixing part, the embedding part is correspondingly embedded in the mounting hole one, and the fixing part is fixed to the outer wall of the housing;

[0015] The inner region corresponding to the embedded part forms a fixing groove two, and a bearing two is provided in the fixing groove two. The other end of the driven rotating shaft passes through the bearing two.

[0016] Through the above technical solution, the embedded part in the fixing seat is aligned with the first mounting hole and passes through it, and fits tightly with the first mounting hole. The fixing part is fixed against the side wall of the box for fixed installation. The other end of the driven shaft passes through the second bearing, which further improves the stable support and rotation of the driven shaft on the other side of the box.

[0017] Preferably, the driven shaft has a second limiting surface, which is located on the side of the driven shaft opposite to the second limiting surface, so that the second bearing is restricted between the second limiting surface and the bottom of the second fixing groove.

[0018] Through the above technical solution, an effective limiting space is formed between the limiting surface two and the bottom of the fixing groove two, which is used to install and limit the position of bearing two, prevent the bearing two from axial movement or falling off during use, reduce swaying, and further improve stability.

[0019] Preferably, the housing also has mounting protrusions, and there are two mounting protrusions. The two mounting protrusions protrude one-to-one from the opposite end faces on both sides of the inner wall of the mounting cavity along the rotation direction of the drive worm. The mounting protrusions have a second mounting hole through them, and the drive worm can be installed into the mounting cavity after passing through the second mounting hole.

[0020] Each of the mounting holes 2 is fitted with a bearing 3, and the two bearings 3 are sleeved at both ends of the drive worm.

[0021] Through the above technical solution, the cross-sectional area of ​​the second mounting hole is designed to be larger than the cross-sectional area of ​​the drive worm, so that the drive worm can be installed into the mounting cavity through the second mounting hole, ensuring that the drive worm can be installed or removed normally.

[0022] By installing bearing three inside the mounting ring of the housing, and with two bearing three respectively fitted onto both ends of the drive worm, the drive worm can be guided to rotate stably and smoothly within the mounting cavity, thereby improving the transmission efficiency and accuracy of the power distribution box.

[0023] Preferably, the housing is provided with mounting base one and mounting base two, and mounting base one and mounting base two are respectively provided with two mounting holes two. Mounting base one has a through hole for the output end of the drive worm to pass through.

[0024] Through the above technical solution, after the installation of mounting base one and mounting base two, the drive worm gear is restricted from disengaging, reducing installation costs. The size and position of one through hole in mounting base one are set so that the output end of the drive worm gear can pass through smoothly, ensuring normal use.

[0025] The key and beneficial technical effects of this technical solution compared to existing technologies are:

[0026] 1. This technical solution provides a drive worm gear and at least three drive components in the housing. The drive device is connected to the output end of the drive worm gear. The drive worm gear receives input power and starts to rotate. The drive worm gear drives the three driven worm wheels meshing on its periphery to rotate synchronously, thereby driving the synchronous rotation of three driven shafts. The output ends of the three driven shafts are connected to external equipment or mechanisms to achieve efficient power distribution and improve the applicability and flexibility of the power distribution box.

[0027] 2. This technical solution also includes mounting protrusions in the housing. There are two mounting protrusions, and each mounting protrusion has a through mounting hole. Each mounting hole contains a bearing. The two bearings are sleeved at both ends of the drive worm, which guides the drive worm to rotate stably and smoothly in the mounting cavity. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of this embodiment;

[0029] Figure 2 This is a schematic diagram of the overall mechanism of the drive worm gear and drive assembly in this embodiment;

[0030] Figure 3 This is a partial cross-sectional view of this embodiment;

[0031] Figure 4 This is a partial cross-sectional view of this embodiment;

[0032] Figure 5 This is a cross-sectional view of the box in the embodiment;

[0033] Figure 6 This is a partial exploded view of the driving component in the embodiment.

[0034] Reference numerals: 1. Housing; 2. Mounting cavity; 3. Drive worm gear; 4. Drive assembly; 41. Driven worm wheel; 42. Driven rotating shaft; 5. Connecting hole; 6. Fixing convex ring; 7. Fixing groove one; 8. Bearing one; 9. Stage; 10. Limiting surface one; 11. Mounting hole one; 12. Fixing seat; 121. Fixing part; 122. Embedded part; 13. Fixing groove two; 14. Bearing two; 15. Limiting surface two; 16. Mounting convex ring; 17. Mounting hole two; 18. Bearing three; 19. Mounting seat one; 20. Mounting seat two; 21. Through hole. Detailed Implementation

[0035] The specific implementation of this technical solution will be further described in detail below with reference to the accompanying drawings.

[0036] Example:

[0037] See Figure 1 and Figure 2 A power distribution box includes a box body 1, which is rectangular in shape and has a mounting cavity 2 inside the box body 1. The mounting cavity 2 is formed corresponding to the interior of the box body 1. The box body 1 is provided with a drive worm gear 3, which is rotatably disposed in the mounting cavity 2 and the rotation axis is arranged in the vertical direction. Its output end passes through the top end face of the box body 1 for connection to drive equipment.

[0038] The housing 1 has several connecting holes 5, two of which are through the front end face of the housing 1 and the other connecting hole 5 is through the side end face of the housing 1. The housing 1 also has at least three drive components 4. The embodiment shows the case where three drive components 4 are provided. Each drive component 4 includes a driven worm gear 41 and a driven shaft 42. The driven shaft 42 rotates in the mounting cavity 2. The driven worm gear 41 is coaxially fixed on the corresponding driven shaft 42. Two driven worm gears 41 are arranged horizontally on opposite sides of the drive worm 3 and are meshed with the drive worm 3. Correspondingly, the output ends of the two driven shafts 42 pass through the two connecting holes 5 on the front side for installation with the driven object. The driven worm gear 3 drives the driven worm gears 41 on both sides to rotate synchronously, so that the driven shafts 42 rotate synchronously. The rotation axis of the driven shafts 42 is horizontal and perpendicular to the rotation axis of the drive worm 3.

[0039] Another drive assembly 4 is located above the two drive assemblies 4 mentioned above. The driven worm gear 41 of the drive assembly 4 is engaged with the rear side of the drive worm 3. The output end of the driven shaft 42 passes through the connecting hole 5 located on the side for installation with the driven object. The drive worm 3 drives the driven worm gear 41 to rotate, and the driven worm gear 41 drives the driven shaft 42 to rotate. The rotation axis of the driven shaft 42 is perpendicular to the rotation axis of the other driven shafts 42 and the rotation axis of the drive shaft, so that one drive screw drives three driven worm gears 41 to rotate synchronously.

[0040] See Figure 3 , Figure 5 and Figure 6 The housing 1 is provided with three mounting holes 11. Each mounting hole 11 is opened on the side end face of the housing 1 opposite to the connecting hole 5. The cross-sectional area of ​​each mounting hole 11 is larger than the cross-sectional area of ​​the drive assembly 4 and is aligned so that the driven shaft 42 and the driven worm gear 41 can be installed into the mounting cavity 2 through the through opening of the corresponding mounting hole 11.

[0041] The housing 1 is provided with three fixing protrusions 6. The position of each fixing protrusion 6 corresponds to the connection hole 5 and protrudes from the inner wall of the housing 1. Each fixing protrusion 6 has a fixing groove 7 formed on its inner side. Each fixing groove 7 is equipped with a matching bearing 8. One end of each driven shaft 42 passes through the corresponding bearing 8. The bearing 8 is sleeved on the driven shaft 42 to realize transmission, guide rotation and reduce friction.

[0042] Each driven shaft 42 has a stage 9, and the stage 9 has a limiting surface 10 located on the end face of the stage 9 near the fixed convex ring 6, so that the bearing 8 is located between the limiting surface 10 and the bottom of the fixed groove 7, which is used to limit its axial swing.

[0043] The housing 1 is also provided with a fixing seat 12. There are three fixing seats 12, and the three fixing seats 12 correspond one-to-one with the three mounting holes 11. Each fixing seat 12 includes a fixing part 121 and an inserting part 122. The cross-sectional dimension of the inserting part 122 is less than or equal to the channel cross-section of the mounting hole 11. The inserting part 122 can be inserted into the corresponding mounting hole 11. The cross-sectional dimension of the fixing part 121 is larger than the mounting hole 11. The fixing part 121 is fixedly connected to the housing 1. The fixed connection method shown in this embodiment is specifically achieved by the case that bolt holes 1 are opened at the four corners of each fixing part 121 and bolt holes 2 are opened at the corresponding positions of the housing 1. The bolts are threaded into the bolt holes 2 after passing through the bolt holes 1 one-to-one.

[0044] Each embedded part 122 has a corresponding internal area with a fixing groove 13. Each fixing groove 13 is fitted with a matching bearing 14. The other end of each driven shaft 42 has a corresponding bearing 14. The bearing 14 is sleeved on the driven shaft 42 to realize transmission. It works with the bearing 8 to further guide the rotation and reduce friction.

[0045] Each driven shaft 42 also has a limiting surface 15, which is located on the side of the driven shaft 42 away from the limiting surface 15, so that the bearing 14 is located between the limiting surface 15 and the bottom of the fixed groove 13, which is used to limit its axial swing.

[0046] See Figure 4 and Figure 5 The housing 1 also has mounting protrusions 16, and there are two mounting protrusions 16. The two mounting protrusions 16 protrude one-to-one from the opposite end faces of the inner wall of the mounting cavity 2 along the rotation direction of the drive worm 3. Each mounting protrusion 16 has a second mounting hole 17. The two second mounting holes 17 pass through the upper and lower opposite side walls of the housing 1 respectively. The cross-sectional dimension of the drive worm 3 is less than or equal to the cross-sectional dimension of any second mounting hole 17, so that the drive worm 3 can be installed into the mounting cavity 2 after passing through the second mounting hole 17. The housing 1 has a first mounting seat 19 and a second mounting seat 20. The first mounting seat 19 and the second mounting seat 20 are set one-to-one with the two second mounting holes 17. The first mounting seat 19 and the second mounting seat 20 are fixed on opposite sides of the housing 1 respectively. The first mounting seat 19 is located on one side of the output end of the drive worm 3. The first mounting seat 19 has a through hole 21 for the output end of the drive worm 3 to pass through.

[0047] Each mounting hole 2 17 is fitted with a bearing 3 18, and the two ends of the drive worm 3 are respectively inserted into the two bearings 3 18 at both ends to guide the rotation of the drive worm wheel.

[0048] The specific work process of this plan is as follows:

[0049] This technical solution involves configuring three drive components 4 within the mounting cavity 2. These components are connected to the output end of a drive worm 3 via a drive device. The drive worm 3 receives input power and begins to rotate, causing the three driven worm wheels 41 meshing around its periphery to rotate synchronously, thus transmitting power. Since each driven worm wheel 41 is coaxially fixed with a corresponding driven rotating shaft 42, the synchronous rotation of the three driven rotating shafts 42 is achieved. The output ends of the three driven rotating shafts 42 pass through corresponding connection holes 5 to the outside of the housing 1, connecting with external equipment or mechanisms. This achieves efficient power distribution and improves the applicability and flexibility of the power distribution box.

[0050] The foregoing has shown and described the basic principles, main features, and advantages of this technical solution. Those skilled in the art should understand that this technical solution is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this technical solution. Various changes and modifications can be made to this technical solution without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed technical solution. The scope of protection of this technical solution is defined by the appended claims and their equivalents.

Claims

1. A power distribution box, comprising a housing (1) having a mounting cavity (2), characterized in that: The housing (1) is provided with a drive worm gear (3), which is rotatably disposed in the mounting cavity (2). The housing (1) is also provided with at least three drive components (4). Each drive component (4) includes a driven worm wheel (41) and a driven shaft (42) coaxially disposed on the driven worm wheel (41). Several driven worm wheels (41) are respectively rotatably disposed on the periphery of the drive worm gear (3), and the driven worm wheels (41) are all meshed with the driven worm wheel (41). The housing (1) is provided with several connecting holes (5). The output end of the driven shaft (42) passes through the connecting holes (5) one by one.

2. A power distribution box according to claim 1, characterized in that: The housing (1) is provided with a fixing protrusion (6). The fixing protrusion (6) protrudes from the inner wall of the housing (1) at the position corresponding to the connecting hole (5). A fixing groove (7) is formed on the inner side of the fixing protrusion (6). A bearing (8) is provided in the fixing groove (7). One end of the driven rotating shaft (42) passes through the bearing (8).

3. A power distribution box according to claim 2, characterized in that: The driven shaft (42) has a platform (9), and a limiting surface (10) is provided on the side of the platform (9) near the fixed convex ring (6), so that the bearing (8) is restricted between the limiting surface (10) and the bottom of the fixed groove (7).

4. A power distribution box according to claim 1, characterized in that: The housing (1) is provided with a mounting hole (11), which is located on the opposite side end face of the housing (1) and the connecting hole (5). The cross-sectional area of ​​the mounting hole (11) is larger than the cross-sectional area of ​​the drive assembly (4), so that the drive assembly (4) can be installed into the mounting cavity (2) through the mounting hole (11).

5. A power distribution box according to claim 4, characterized in that: The housing (1) is provided with a fixing seat (12), the fixing seat (12) includes a fixing part (121) and an embedding part (122) disposed inside the fixing part (121). The embedding part (122) is embedded into the mounting hole (11) and the fixing part (121) is fixed to the outer wall of the housing (1). The inner region corresponding to the embedded part (122) forms a fixing groove two (13), and a bearing two (14) is provided in the fixing groove two (13). The other end of the driven rotating shaft (42) passes through the bearing two (14).

6. A power distribution box according to claim 5, characterized in that: The driven shaft (42) has a limiting surface two (15), which is located on the side of the driven shaft (42) away from the limiting surface two (15), so that the bearing two (14) is restricted between the limiting surface two (15) and the bottom of the fixed groove two (13).

7. A power distribution box according to claim 1, characterized in that: The housing (1) also has mounting protrusions (16), and there are two mounting protrusions (16). The two mounting protrusions (16) protrude one-to-one from the opposite end faces on both sides of the inner wall of the mounting cavity (2) along the rotation direction of the drive worm (3). The mounting protrusions (16) have a through mounting hole (17), and the drive worm (3) can be installed into the mounting cavity (2) after passing through the mounting hole (17). Each of the mounting holes 2 (17) is equipped with a bearing 3 (18), and the two bearings 3 (18) are sleeved at both ends of the drive worm (3).

8. A power distribution box according to claim 7, characterized in that: The housing (1) is provided with mounting base one (19) and mounting base two (20). Mounting base one (19) and mounting base two (20) are provided with two mounting holes two (17) corresponding to each other. Mounting base one (19) has a through hole (21) for the output end of the drive worm (3) to pass through.

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