Spiral bevel gear speed reducer

Abstract

The present invention relates to the technical field of speed reducers, specifically to spiral bevel gear speed reducers, and includes: a motor, a housing, a permanent magnet plate, a rotating rod, and a reciprocating lead screw. The permanent magnet plate is installed at the inner bottom of the housing. The rotating rod is driven by the motor, and the reciprocating lead screw is driven by the rotating rod. A push block is connected to the outer cylindrical surface of the reciprocating lead screw through thread transmission. Collection boxes are installed at both ends of the bottom of the housing, and a cover plate is provided at the upper opening of the collection box. In this solution, when the motor works, it will drive the rotating rod to rotate. When the rotating rod rotates, it will drive the reciprocating lead screw to rotate. When the reciprocating lead screw rotates, it will drive the push block to move left and right. When the push block moves left and right, it will clean the iron filings on the surface of the permanent magnet plate, preventing the surface of the permanent magnet plate from being covered by iron filings, so as to continuously ensure the adsorption effect of the permanent magnet plate on the iron filings, thereby improving the purification effect of the softening oil.

Description

Technical Field

[0001] The present invention relates to the technical field of speed reducers, and specifically relates to spiral bevel gear speed reducers. Background Art

[0002] Spiral bevel gear speed reducers play a role in matching speeds and transmitting torques between prime movers and working machines or actuators, and are relatively precise machinery. The purpose of using it is to reduce speed and increase torque. It has a wide variety of types and different models, and different types have different uses.

[0003] When the spiral bevel gear speed reducer is working, the mechanical gears will engage and drive each other. During the transmission, friction will be generated and the lubricating oil inside the speed reducer will be agitated. Iron filings will be generated when the transmission components rub against each other. The iron filings will flow to various parts of the transmission components along with the lubricating oil, increasing the friction between the two sets of transmission components. More iron filings will be produced during the transmission, thus forming a vicious cycle.

[0004] In the prior art, a magnet is generally installed inside the lower end of the speed reducer to adsorb iron filings. However, after a layer of iron filings is adsorbed on the surface of the magnet, it cannot adsorb the continuously generated iron filings, and it cannot handle the iron filings inside the speed reducer for a long time. Summary of the Invention

[0005] Technical Problem to be Solved

[0006] In view of the above-mentioned drawbacks of the prior art, the present invention provides a spiral bevel gear speed reducer, which can effectively solve the problem that the transmission components inside the spiral bevel gear speed reducer are severely worn when working in the prior art.

[0007] Technical Solution

[0008] To achieve the above object, the present invention is realized through the following technical solutions:

[0009] The present invention provides a spiral bevel gear speed reducer:

[0010] It includes: a motor, a housing, a permanent magnet plate, a rotating rod, and a reciprocating screw rod. The permanent magnet plate is installed at the inner bottom of the housing. The rotating rod is driven by the motor, and the reciprocating screw rod is driven by the rotating rod. A push block is connected to the outer surface of the reciprocating screw rod through a threaded transmission. Collection boxes are installed at both ends of the bottom of the housing. A cover plate is provided at the upper opening of the collection box. The cover plate is connected to the housing through a hinge mechanism. The hinge mechanism controls the cover plate to rotate downward. A first spring is provided at the angle between the cover plate and the housing, and the first spring is fixedly connected to both of them. A triangular prism is fixedly connected to the upper surface of the cover plate.

[0011] Furthermore, both sides of the lower end of the pushing block are connected with shoveling plates through hinge mechanisms. The hinge mechanisms control the shoveling plates to rotate downward, and one side of the shoveling plate is designed with an inclined cut.

[0012] Furthermore, a second spring is fixedly connected to the inclined surface on one side of the triangular prism. The upper inner angle of the triangular prism is [angle value], and the two groups of inner angles at its lower end are both [angle value].

[0013] Furthermore, a cross plate is arranged above the reciprocating lead screw. The cross plate is fixedly connected to the side wall of the housing. One side of the cross plate is not connected to the housing. A cylinder cover is fixedly connected to the upper surface of the cross plate, and a paddle is fixedly connected to the side surface of the rotating rod.

[0014] Furthermore, a fixed disk is fixedly installed at the position below the paddle on the side surface of the rotating rod. A sliding disk is sleeved at the position below the fixed disk on the side surface of the rotating rod. A filter screen is fixedly connected to the lower surface of the sliding disk. A fixed ring is fixedly connected to the lower end of the filter screen. Uniformly distributed third springs are fixedly connected to the lower surface of the fixed ring. The lower end of the third spring is fixedly connected to a fixed block, and one end of the fixed block is fixedly connected to the side wall of the cylinder cover. Two hemispherical blocks are fixedly connected to the lower surface of the fixed disk, and four arc-shaped grooves are formed on the upper surface of the sliding disk.

[0015] Furthermore, a worm gear is fixedly connected to the side surface of the output shaft of the motor. A worm is meshed with one side of the worm gear. A rotating rod is fixedly connected to the lower surface of the worm. A first bevel gear is fixedly connected to the lower end of the rotating rod. A second bevel gear is meshed with one side of the first bevel gear. A reciprocating lead screw is penetrated through the second bevel gear and is fixedly connected to it. Both ends of the reciprocating lead screw are rotatably connected to the inner wall of the housing.

[0016] Furthermore, a mud guiding cover is fixedly installed at the position above the first bevel gear on the side surface of the rotating rod.

[0017] Furthermore, a sealing plate is arranged at the bottom of the collection box, and the two are fixedly connected by screws. A sunken groove is formed on the lower surface of the sealing plate around the screws.

[0018] Advantageous Effects

[0019] The technical solution provided by the present invention has the following advantageous effects compared with the known public technologies:

[0020] 1. When the motor works in this solution, it drives the rotating rod to rotate. When the rotating rod rotates, it drives the reciprocating screw rod to rotate. When the reciprocating screw rod rotates, it drives the push block to move left and right. When the push block moves left and right, it clears the iron filings on the surface of the permanent magnet plate, preventing the surface of the permanent magnet plate from being covered by iron filings, so as to continuously ensure the adsorption effect of the permanent magnet plate on iron filings, thereby improving the purification effect of the softening oil.

[0021] 2. When the rotating rod rotates in this solution, it drives the paddle to rotate. When the paddle rotates, it drives the lubricating oil to enter from the opening at one end of the cross plate and discharge from the cylinder cover, improving the flow rate of the lubricating oil. Thus, it can increase the adsorption frequency of the permanent magnet plate on iron filings, and further improve the purification efficiency of the lubricating oil.

[0022] 3. When the push block stays at the right angle of the triangular prism in this solution, the shovel plate will rotate downward under its own gravity. When rotating, it will hit the second spring. After being hit, the second spring shakes and drives the shovel plate to shake at the same time. The shaking of the shovel plate facilitates the iron filings on the inclined surface of the shovel plate.

[0023] 4. When the rotating rod rotates in this solution, it drives the fixed disk to rotate and the hemispherical block rotates together with the fixed disk. When the hemispherical block rotates, it squeezes the sliding disk to move up and down. When the sliding disk moves up and down, it drives the filter net to shake up and down. When the filter net shakes, it is convenient for the iron filings on the lower surface to fall off, thus preventing the filter net from being blocked and ensuring the flow rate of the lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 It is a three-dimensional view of the overall structure of the present invention;

[0026] Figure 2 It is a view showing the inside of the housing of the present invention;

[0027] Figure 3 It is a sectional view of the present invention;

[0028] Figure 4 For the present invention Figure 3 An enlarged view of point A;

[0029] Figure 5 For the present invention Figure 3 An enlarged view of point B;

[0030] Figure 6Connection diagram of the fixed disk and the hemispherical block of the present invention;

[0031] Figure 7 Stereoscopic view of the sliding disk of the present invention;

[0032] Figure 8 For the present invention Figure 1 Enlarged view of point C in the figure.

[0033] The reference numerals in the figure respectively represent: 1, motor; 2, housing; 3, permanent magnet plate; 4, rotating rod; 5, worm gear; 6, worm; 7, first bevel gear; 8, second bevel gear; 9, reciprocating screw rod; 10, push block; 11, first spring; 12, cover plate; 13, triangular prism; 14, shovel plate; 15, second spring; 16, collection box; 17, cross plate; 18, cylinder cover; 19, paddle; 20, fixed disk; 21, sliding disk; 22, fixed ring; 23, fixed block; 24, third spring; 25, filter screen; 26, arc groove; 27, hemispherical block; 28, mud guiding cover; 29, screw; 30, sinking groove; 31, sealing plate. Detailed implementation manners

[0034] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0035] The present invention will be further described below with reference to the embodiments.

[0036] Embodiment:

[0037] Specifically, as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5As shown, the spiral bevel gear reducer includes: a motor 1, a housing 2, a permanent magnet plate 3, a rotating rod 4, and a reciprocating lead screw 9. The permanent magnet plate 3 is installed at the inner bottom of the housing 2. The rotating rod 4 is driven by the motor 1, and the reciprocating lead screw 9 is driven by the rotating rod 4. A push block 10 is connected to the outer cylindrical surface of the reciprocating lead screw 9 through a threaded transmission. Collection boxes 16 are installed at both ends of the bottom of the housing 2. A cover plate 12 is provided at the upper opening of the collection box 16. The cover plate 12 is connected to the housing 2 through a hinge mechanism. The hinge mechanism controls the cover plate 12 to rotate downward. A first spring 11 is provided at the angle between the cover plate 12 and the housing 2, and the first spring 11 is fixedly connected to both of them. A triangular prism 13 is fixedly connected to the upper surface of the cover plate 12. A worm gear 5 is fixedly connected to the side surface of the output shaft of the motor 1. A worm 6 is meshed with one side of the worm gear 5. A rotating rod 4 is fixedly connected to the lower surface of the worm 6. A first bevel gear 7 is fixedly connected to the lower end of the rotating rod 4. A second bevel gear 8 is meshed with one side of the first bevel gear 7. The reciprocating lead screw 9 penetrates through the second bevel gear 8, and the two are fixedly connected. Both ends of the reciprocating lead screw 9 are rotatably connected to the inner wall of the housing 2.

[0038] As Figure 2 , Figure 4 shown, a cross plate 17 is provided above the reciprocating lead screw 9. The cross plate 17 is fixedly connected to the side wall of the housing 2. One side of the cross plate 17 is not connected to the housing 2. A cylinder cover 18 is fixedly connected to the upper surface of the cross plate 17. A paddle 19 is fixedly connected to the side surface of the rotating rod 4.

[0039] As Figure 5 shown, shovel plates 14 are connected to both sides of the lower end of the push block 10 through hinge mechanisms. The hinge mechanisms control the shovel plates 14 to rotate downward. One side of the shovel plate 14 is designed with an inclined cut.

[0040] As Figure 5 shown, a second spring 15 is fixedly connected to one inclined surface of the triangular prism 13. The upper inner angle of the triangular prism 13 is 90 degrees, and the two lower inner angles are both 45 degrees.

[0041] In the present invention, the motor 1 is installed outside the housing 2, and the output shaft of the motor 1 extends into the housing 2 to output power to the transmission components inside the housing 2. When the motor 1 rotates, it drives the turbine 5 to drive the worm 6 to rotate. When the worm 6 rotates, it drives the rotating rod 4, the blade 19, and the first bevel gear 7 to rotate together. When the first bevel gear 7 rotates, it drives the second bevel gear 8 to rotate. When the second bevel gear 8 rotates, it drives the reciprocating screw rod 9 to rotate. When the reciprocating screw rod 9 rotates, it drives the push block 10 to move left and right on the surface of the permanent magnet plate 3. When the push block 10 moves left and right, it pushes the iron filings on the surface of the permanent magnet plate 3 into the collection box 16. When the push block 10 pushes the iron filings, as the push block 10 moves, the iron filings in front accumulate and hinder the movement of the push block 10. The installed shovel plate 14 can shovel the accumulated iron filings above the shovel plate 14, facilitating the movement of the push block 10. The inclined cutout provided at one end of the shovel plate 14 facilitates the shovel plate 14 to shovel the iron filings above the shovel plate 14. As it moves to the collection box 16, the shovel plate 14 squeezes the triangular prism 13. After being squeezed, the triangular prism 13 drives the cover plate 12 to compress the first spring 11. At this time, the upper opening of the collection box 16 is opened. Finally, the push block 10 stays at the right angle of the triangular prism 13. At this time, the shovel plate 14 no longer squeezes the triangular prism 13 and there is no object supporting it below, so the shovel plate 14 will rotate downward under its own gravity. When rotating downward, it will hit the second spring 15. After being hit, the second spring 15 shakes and drives the shovel plate 14 to shake at the same time. The shaking of the shovel plate 14 facilitates the iron filings on the inclined surface of the shovel plate 14. When the push block 10 moves in one direction, the compressed first spring 11 will push the cover plate 12 to cover the collection box 16. Since the blade 19 rotates to drive the lubricating oil to enter from the opening at one end of the cross plate 17 and discharge from the cylinder cover 18, the flow rate of the lubricating oil is increased, which can improve the adsorption frequency of the permanent magnet plate 3 for iron filings, and further improve the purification efficiency of the lubricating oil. When the lubricating oil moves above the collection box 16, the flow rate of the lubricating oil in the collection box 16 is much smaller than the flow rate of the lubricating oil at the upper end, resulting in a greater pressure in the collection box 16 than at the upper end, which easily causes the iron filings to flow back out of the collection box 16. By installing the cover plate 12, the problem of iron filings flowing back can be avoided.

[0042] In addition, as Figure 4 , Figure 6 , Figure 7As shown, a fixed disk 20 is fixedly installed on the side surface of the rotating rod 4 below the paddle blade 19. A sliding disk 21 is sleeved on the side surface of the rotating rod 4 below the fixed disk 20. A filter net 25 is fixedly connected to the lower surface of the sliding disk 21. The lower end of the filter net 25 is fixedly connected to a fixed ring 22. A uniformly distributed third spring 24 is fixedly connected to the lower surface of the fixed ring 22. The lower end of the third spring 24 is fixedly connected to a fixed block 23, and one end of the fixed block 23 is fixedly connected to the side wall of the cylinder cover 18. Two groups of hemispherical blocks 27 are fixedly connected to the lower surface of the fixed disk 20. Four arc-shaped grooves 26 are formed on the upper surface of the sliding disk 21.

[0043] As Figure 4 shown, a mud guide cover 28 is fixedly installed on the side surface of the rotating rod 4 above the first bevel gear 7.

[0044] When the lubricating oil flows below the cross plate 17, the permanent magnet plate 3 cannot completely magnetically attract the iron filings in the flowing liquid. In order to further improve the treatment effect on the iron filings, the present invention filters the iron filings in the flowing liquid by installing the filter net 25, thereby improving the treatment effect on the iron filings. After being filtered, the iron filings will slowly fall with their own power. The installed mud guide cover 28 can prevent the falling iron filings from falling on the first bevel gear 7 and the second bevel gear 8 and affecting the transmission between the two. When the rotating rod 4 rotates, it will drive the fixed disk 20 to rotate and the hemispherical block 27 will rotate together with the fixed disk 20. When the hemispherical block 27 rotates, it will continuously enter and exit from the arc-shaped groove 26. When the hemispherical block 27 moves out of the arc-shaped groove 26, it will drive the sliding disk 21 to move downward, and at the same time, the filter net 25 and the fixed ring 22 will move downward together and compress the third spring 24. When the hemispherical block 27 enters the arc-shaped groove 26, the compressed third spring 24 will push the fixed ring 22, the filter net 25, and the sliding disk 21 upward. Repeating this way, the sliding disk 21 will vibrate up and down, and at the same time, the filter net 25 will also vibrate up and down. When the filter net 25 vibrates, it can facilitate the iron filings on the lower surface to fall off, thereby preventing the filter net 25 from being blocked and ensuring the flow rate of the lubricating oil. It should be noted that the filter net 25 is made of a hard material, or the filter net 25 is made of a soft material but several hard support rods are added on the surface to ensure that the filter net 25 will not deform when being squeezed by the sliding disk 21.

[0045] In addition, as Figure 8 shown, a sealing plate 31 is provided at the bottom of the collection box 16, and the two are fixedly connected by screws 29. A sinking groove 30 is formed on the lower surface of the sealing plate 31 around the screws 29.

[0046] The collection box 16 is made of transparent material. When it is observed that there is too much iron filings inside the collection box 16, the sealing plate 31 can be removed by unscrewing the screw 29. At this time, the iron filings can be taken out. After taking out the iron filings, the sealing plate 31 is installed at the bottom of the collection box 16, and the operation is simple and convenient. In addition, the sunk groove 30 is provided to prevent the screw 29 from protruding and affecting the stability of the gear machine when placed.

[0047] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. Spiral bevel gear speed reducer, including: a motor, a housing, a permanent magnet plate, a rotating rod, and a reciprocating lead screw. It is characterized in that the permanent magnet plate is installed at the inner bottom of the housing, the rotating rod is driven by the motor, the reciprocating lead screw is driven by the rotating rod, a push block is connected to the outer cylindrical surface of the reciprocating lead screw through screw transmission, collecting boxes are installed at both ends of the bottom of the housing, a cover plate is provided at the upper opening of the collecting box, the cover plate is connected to the housing through a hinge mechanism, the hinge mechanism controls the cover plate to rotate downward, a first spring is provided at the angle between the cover plate and the housing, and the first spring is fixedly connected to both of them. A triangular prism is fixedly connected to the upper surface of the cover plate; hinge mechanisms are connected to both sides of the lower end of the push block to connect shovel plates, and the hinge mechanisms control the shovel plates to rotate downward. a cross plate is provided above the reciprocating lead screw, the cross plate is fixedly connected to the side wall of the housing, one side of the cross plate is connected to the housing, a cylinder cover is fixedly connected to the upper surface of the cross plate, and a paddle is fixedly connected to the side surface of the rotating rod; a fixed disk is fixedly installed at a position below the paddle on the side surface of the rotating rod, a sliding disk is sleeved on the side surface of the rotating rod at a position below the fixed disk, and a filter screen is fixedly connected to the lower surface of the sliding disk; a second spring is fixedly connected to one inclined surface of the triangular prism, the upper inner angle of the triangular prism is 90 degrees, and the lower two inner angles are both 45 degrees.

2. The spiral bevel gear speed reducer according to claim 1, characterized in that one side of the shovel plate is designed with an inclined cut.

3. The spiral bevel gear speed reducer according to claim 1, characterized in that a fixing ring is fixedly connected to the lower end of the filter screen, uniformly distributed third springs are fixedly connected to the lower surface of the fixing ring, the lower ends of the third springs are fixedly connected to fixing blocks, and one end of the fixing block is fixedly connected to the side wall of the cylinder cover. Two hemispherical blocks are fixedly connected to the lower surface of the fixed disk, and four arc-shaped grooves are formed on the upper surface of the sliding disk.

4. The spiral bevel gear speed reducer according to claim 3, characterized in that a worm gear is fixedly connected to the side surface of the output shaft of the motor, a worm is meshed and connected to one side of the worm gear, the worm is fixedly connected to a rotating rod at its lower surface, and a first bevel gear is fixedly connected to the lower end of the rotating rod; a second bevel gear is meshed and connected to one side of the first bevel gear, a reciprocating lead screw penetrates through the inside of the second bevel gear, and the two are fixedly connected, and both ends of the reciprocating lead screw are rotatably connected to the inner wall of the housing.

5. The spiral bevel gear speed reducer according to claim 1, characterized in that a mud guiding cover is fixedly installed on the side surface of the rotating rod above the first bevel gear.

6. The spiral bevel gear speed reducer according to claim 5, characterized in that a sealing plate is provided at the bottom of the collecting box, and the two are fixedly connected by screws. A sinking groove is formed on the lower surface of the sealing plate around the screws.

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