Speed reducer with large speed ratio, large torque and compact structure

Abstract

The large-speed-ratio large-torque compact-structure speed reducer comprises a base and a speed reducer body arranged on the base, a box body is installed at the top of the speed reducer body through a positioning plate matched with bolts, a partition plate is arranged in the box body, and the interior of the box body is divided into an oil cavity and an air cavity through the partition plate; an oil inlet valve is arranged on the side wall, located in the oil cavity, of the box body, an oil inlet pipe is arranged at the bottom of the box body, the other end of the oil inlet pipe penetrates through the positioning plate to be communicated with the speed reducer body, an oil outlet hole communicated with the oil inlet pipe is formed in the bottom of the box body, and a rubber plug pressing plate is slidably connected to the inner wall, located in the air cavity, of the box body. A one-way valve is further arranged on the side wall, located on the air cavity, of the box body. Lubricating oil can be added into the speed reducer body, dust can be cleaned, and the phenomenon that dust enters the speed reducer body, parts are jammed, and normal work of the speed reducer body is affected is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of reducers, in particular to a reducer with a large speed ratio, large torque and compact structure. Background Art

[0002] Planetary reducers have the characteristics of high precision, strong rigidity, precise structure and easy installation. They are widely used in precision CNC machining machine tools, aerospace industry, as well as printing machinery, food packaging, welding equipment, textile printing and dyeing, glass equipment, pharmaceutical leather making, environmental protection equipment, cement equipment, coal equipment, petrochemical industry, rubber and plastics, lifting and transportation, automation industry, industrial robots, medical inspection and other light and heavy industrial mechanical transmission and precision control fields.

[0003] After searching, the patent publication number CN213361015U discloses a compact reducer with a large speed ratio and large torque, including a first-stage planetary system, wherein the first-stage planetary system includes an input sun gear, a first-stage star gear, a first-stage planet carrier and a first-stage gear structure, wherein the first-stage planet carrier structure is connected to the second-stage sun gear through teeth to transfer torque to the second-stage planetary system, wherein the second-stage planetary system includes a second-stage sun gear, a second-stage planetary gear, a second-stage planet carrier and a ring gear structure, wherein the ring gear structure and the driving gear structure form a parallel axis gear transmission, wherein the driving gear structure and the output shaft structure transfer torque output through a second flat key structure and an interference connection, wherein the input sun gear structure is connected to the first flat key structure, wherein a first support seat structure is provided on the outer side of the input sun gear structure, a transparent cover structure is provided on the upper end of the first support seat structure, and the first bearing structure is provided on the outer side of the lower end of the first support seat structure.

[0004] Although this patent can make the reducer have a large speed ratio, large torque, short length, narrow width, compact structure, strong practicality and strong operability, it still has the following defects: when the reducer works for a long time, a lot of dust will accumulate on its surface. If it is not cleaned in time, the dust will easily enter the body through the installation seam of the body over time, thereby causing the gears inside the body to get stuck and affecting the operation of the reducer output shaft. Utility Model Content

[0005] The utility model aims to solve the problem that dust accumulates too much on the surface of the existing high-speed ratio, high-torque and compact reducer and enters into the machine body, causing gear jamming and affecting the operation of the machine body.

[0006] In order to achieve the above-mentioned invention object, the utility model provides the following technical solutions:

[0007] A compact reducer with large speed ratio and high torque can improve the above problems.

[0008] The specific application is as follows:

[0009] It includes a base and a reduction body arranged on the base, a box body is installed on the top of the reduction body through a positioning plate and bolts, a partition is arranged inside the box body, and the partition divides the inside of the box body into an oil chamber and an air chamber, an oil inlet valve is arranged on the side wall of the box body located in the oil chamber, an oil inlet pipe is arranged at the bottom of the box body, the other end of the oil inlet pipe passes through the positioning plate and is connected to the reduction body, and an oil outlet hole connected to the oil inlet pipe is arranged at the bottom of the box body, a rubber plug pressing plate is slidably connected on the inner wall of the box body located in the air chamber, and a one-way valve is also arranged on the side wall of the box body located in the air chamber, and it also includes:

[0010] The extrusion assembly is arranged on the box body and is used to drive the rubber plug pressing plate to move up and down to pressurize the inside of the oil cavity, so that the lubricating oil is pressurized to flow into the oil inlet pipe through the oil outlet hole.

[0011] As a preferred technical solution of the present application, the extrusion assembly includes a pressure column slidably connected to the top of the box body, a cross plate arranged on the top of the pressure column, an elastic rope arranged at the bottom of the cross plate, and a steel ball arranged at the bottom of the elastic rope, wherein the bottom of the pressure column is connected to the upper surface of the plug pressure plate, and the pressure column is located between the inner top wall of the box body and the top wall of the plug pressure plate, and a first spring is sleeved on the rod wall.

[0012] As a preferred technical solution of the present application, the base is provided with a knocking assembly for knocking the reducer body to clean dust, and the knocking assembly includes a support plate symmetrically arranged on the base, a rotating rod rotatably connected to the support plate, a rocker arm arranged on the rotating rod, and a knocking plate arranged at the bottom of the rocker arm, wherein the rotating rod is also provided with a rotating assembly.

[0013] As a preferred technical solution of the present application, the rotating assembly includes a gear sleeved on the wall of the rotating rod and a toothed plate arranged on the side wall of the box body through a connecting rod, and the toothed plate is meshed with the gear.

[0014] As a preferred technical solution of the present application, an intermittent sealing assembly is also provided in the box body, and the intermittent sealing assembly includes a sealing plate slidably connected to the bottom wall of the box body and cooperating with the oil outlet hole, a fixing rod arranged on the top of the sealing plate, a second spring arranged between the fixing rod and the inner wall of the box body, a winding wheel mounted on the rotating rod, and a pull rope wound around the winding wheel, and the end of the pull rope away from the winding wheel passes through the box body and is connected to the fixing rod.

[0015] As a preferred technical solution of the present application, a sealing sleeve is provided on the side wall of the box body, and the pull rope passes through the sealing sleeve.

[0016] As a preferred technical solution of the present application, the diameter of the oil outlet hole is 1mm-3mm.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] In the scheme of this application:

[0019] 1. When the reducer body is working, it will vibrate greatly. At this time, the vibration force of the reducer body can drive the extrusion assembly to continuously squeeze the rubber plug pressure plate, so that the rubber plug pressure plate squeezes the gas in the air cavity of the box into the oil cavity. The lubricating oil in the oil cavity is pressurized and flows into the oil inlet pipe through the oil outlet hole, and finally flows into the reducer body to lubricate the driving parts in the reducer body, so as to prevent dust from entering the reducer body and causing the parts to get stuck, thus affecting the normal operation of the reducer body.

[0020] 2. When the reducer body vibrates during operation, the striking component will be driven by the rotating component, constantly hitting the surface of the reducer body, increasing the vibration amplitude of the reducer body, and then the dust attached to the surface of the reducer body can be shaken off, improving the cleanliness of the reducer body, and further preventing dust from entering the interior of the reducer body, causing parts to get stuck and affecting its normal operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure of a compact reducer with a high speed ratio and high torque provided in this application;

[0022] Figure 2 A side view of a compact reducer with a high speed ratio and high torque provided for this application;

[0023] Figure 3 One of the schematic diagrams of the internal structure of the housing of the compact reducer with a high speed ratio and high torque provided in this application;

[0024] Figure 4 The second schematic diagram of the internal structure of the housing of the compact reducer with a high speed ratio and high torque provided in this application;

[0025] Figure 5 The high speed ratio, high torque and compact reducer provided by this application Figure 1 Enlarged structural diagram at A in the middle.

[0026] Indicated in the figure:

[0027] 1. Base; 101. Support plate; 2. Reducer body; 201. Positioning plate; 3. Box body; 301. One-way valve; 302. Oil inlet valve; 303. Oil inlet pipe; 304. Oil outlet hole; 305. Sealing sleeve; 4. Partition; 5. Rubber plug pressure plate; 6. Pressure column; 601. Cross plate; 602. Elastic rope; 603. Steel ball; 604. First spring; 7. Turnbar; 701. Rocker; 702. Knocking plate; 8. Gear; 9. Tooth plate; 901. Connecting rod; 10. Sealing plate; 11. Fixed rod; 1101. Second spring; 12. Winding wheel; 1201. Pull rope. DETAILED DESCRIPTION

[0028] To make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments.

[0029] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the present invention to be protected, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0032] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "upper", "lower", etc. is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the invention product is usually placed when in use, or the orientation or position relationship commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0033] like Figure 1 , Figure 2 Figure 3 As shown, this embodiment proposes a compact reducer with a large speed ratio and a large torque, comprising a base 1 and a reducer body 2 arranged on the base 1, a box body 3 is installed on the top of the reducer body 2 through a positioning plate 201 and bolts, a partition 4 is arranged inside the box body 3, and the partition 4 divides the inside of the box body 3 into an oil chamber and an air chamber, an oil inlet valve 302 is arranged on the side wall of the box body 3 located in the oil chamber, an oil inlet pipe 303 is arranged at the bottom of the box body 3, the other end of the oil inlet pipe 303 passes through the positioning plate 201 and is connected to the reducer body 2, and an oil outlet hole 304 communicating with the oil inlet pipe 303 is arranged at the bottom of the box body 3, a rubber plug pressing plate 5 is slidably connected to the inner wall of the box body 3 located in the air chamber, and a one-way valve 301 is also arranged on the side wall of the box body 3 located in the air chamber, and also includes:

[0034] The extrusion assembly is arranged on the box body 3 and is used to drive the rubber plug pressing plate 5 to move up and down to pressurize the inside of the oil chamber so that the lubricating oil is pressurized to flow into the oil inlet pipe 303 through the oil outlet hole 304;

[0035] First, lubricating oil is injected into the oil chamber of the housing 3 through the oil inlet valve 302. When the reducer body 2 is working, it will generate large vibrations. At this time, the vibration force can drive the extrusion assembly to continuously squeeze the rubber plug pressing plate 5 up and down, so that the rubber plug pressing plate 5 continuously squeezes the gas in the air cavity into the oil chamber of the housing 3. At this time, the lubricating oil in the oil chamber is pressurized to pass through the oil outlet hole 304 into the oil inlet pipe 303, and then the lubricating oil flows into the interior of the reducer body 2 through the oil inlet pipe 303 to lubricate the internal parts of the reducer body 2 to prevent the parts from getting stuck and affecting the normal use of the reducer body 2.

[0036] The diameter of the oil outlet hole 304 is 1mm-3mm. Because the lubricating oil is relatively viscous, when the oil outlet hole 304 is within this range, the lubricating oil in the oil cavity will not automatically flow through the oil outlet hole 304 under normal circumstances, and will only flow out of the oil outlet hole 304 when it is squeezed.

[0037] like Figure 3 As shown, as a preferred embodiment, on the basis of the above-mentioned manner, further, the extrusion assembly includes a pressure column 6 slidably connected to the top of the box body 3, a cross plate 601 arranged on the top of the pressure column 6, an elastic rope 602 arranged at the bottom of the cross plate 601, and a steel ball 603 arranged at the bottom of the elastic rope 602, wherein the bottom of the pressure column 6 is connected to the upper surface of the plug pressing plate 5, and the pressure column 6 is located between the inner top wall of the box body 3 and the top wall of the plug pressing plate 5. A first spring 604 is sleeved on the rod wall;

[0038] When the reducer body 2 vibrates during operation, the pressure column 6 will continuously shake on the box body 3, and then will continuously squeeze the rubber plug pressing plate 5 up and down, and the pressure column 6 also squeezes the first spring 604, so that the first spring 604 continuously expands and contracts, further facilitating the pressure column 6 to bounce up and down to squeeze the rubber plug pressing plate 5. At the same time, the steel ball 603 at the bottom of the cross plate 601 will also bounce under the elastic force of the elastic rope 602, so that under the action of gravity, it can further facilitate the pressure column 6 to bounce up and down to squeeze the rubber plug pressing plate 5, so as to squeeze the gas in the air cavity into the oil cavity to squeeze out the lubricating oil.

[0039] like Figure 4 and Figure 5As shown, as a preferred embodiment, on the basis of the above-mentioned manner, further, a knocking assembly for knocking the reducer body 2 to clean dust is provided on the base 1, and the knocking assembly includes a support plate 101 symmetrically arranged on the base 1, a rotating rod 7 rotatably connected to the support plate 101, a swing rod 701 arranged on the rotating rod 7, and a knocking plate 702 arranged at the bottom of the swing rod 701, wherein the rotating rod 7 is also provided with a rotating assembly;

[0040] The rotating assembly includes a gear 8 sleeved on the rod wall of the rotating rod 7 and a toothed plate 9 arranged on the side wall of the box body 3 through a connecting rod 901, and the toothed plate 9 is meshed with the gear 8;

[0041] When the reducer body 2 vibrates during operation, the box body 3 thereon will drive the tooth plate 9 to shake up and down through the connecting rod 901. At this time, the tooth plate 9 will drive the gear 8 meshing with it to rotate forward and reverse, and the gear 8 will drive the rotating rod 7 to rotate forward and reverse. The rotating rod 7 will then drive the knocking plate 702 to swing continuously through the rocker rod 701 to strike the reducer body 2, thereby increasing the vibration amplitude of the reducer body 2, and then the dust attached to the surface of the reducer body 2 can be shaken off, avoiding excessive dust from entering the reducer body 2 and causing parts to get stuck, thereby affecting the normal operation of the reducer body 2.

[0042] like Figure 3 and Figure 4 As shown, as a preferred embodiment, on the basis of the above-mentioned manner, further, an intermittent sealing assembly is further provided in the box body 3, and the intermittent sealing assembly includes a sealing plate 10 slidably connected to the inner bottom wall of the box body 3 and matched with the oil outlet hole 304, a fixing rod 11 arranged on the top of the sealing plate 10, a second spring 1101 arranged between the fixing rod 11 and the inner wall of the box body 3, a winding wheel 12 sleeved on the rotating rod 7, and a pull rope 1201 wound around the winding wheel 12, and the end of the pull rope 1201 away from the winding wheel 12 passes through the box body 3 and is connected to the fixing rod 11;

[0043] When the reduction gear body 2 vibrates and drives the rotating rod 7 to rotate forward and reverse, the rotating rod 7 will also continuously reel in and then release the pull rope 1201 through the winding wheel 12. When the winding wheel 12 reels in the pull rope 1201, the pull rope 1201 will pull the sealing plate 10 on the fixed rod 11 to move away from the oil outlet hole 304 and squeeze the second spring 1101. At this time, the lubricating oil can be squeezed out of the oil outlet hole 304 under pressure. When the winding wheel 12 releases the pull rope 1201, the force contact of the second spring 1101 will drive the sealing plate 10 on the fixed rod 11 to move in the opposite direction and contact the oil outlet hole 304 to block the oil outlet hole 304, so that the oil outlet hole 304 can be continuously blocked and then released in sequence. The lubricating oil can be squeezed out intermittently, and the internal parts of the reduction gear body 2 can be lubricated by a small amount of lubricating oil to prevent excessive extrusion at one time and cause waste.

[0044] Among them, a sealing sleeve 305 is provided on the side wall of the box body 3, and the pull rope 1201 passes through the sealing sleeve 305; the pull rope 1201 passes through the sealing sleeve 305 and is pulled back, which can improve the sealing of the connection between the pull rope 1201 and the box body 3 and avoid oil leakage at the connection between the pull rope 1201 and the box body 3.

[0045] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims

1. A high-speed ratio, high-torque, compact reducer, comprising a base (1) and a reducer body (2) arranged on the base (1), characterized in that: The top of the speed reducer body (2) is mounted with a housing (3) through a positioning plate (201) and bolts. A partition (4) is provided inside the housing (3). The partition (4) divides the inside of the housing (3) into an oil chamber and an air chamber. An oil inlet valve (302) is provided on the side wall of the housing (3) located in the oil chamber. An oil inlet pipe (303) is provided at the bottom of the housing (3). The other end of the oil inlet pipe (303) passes through the positioning plate (201) and is connected to the speed reducer body (2). An oil outlet hole (304) connected to the oil inlet pipe (303) is provided at the bottom of the housing (3). A rubber plug pressing plate (5) is slidably connected to the inner wall of the housing (3) located in the air chamber. A one-way valve (301) is also provided on the side wall of the housing (3) located in the air chamber. The housing (3) further comprises: The extrusion assembly is arranged on the box body (3) and is used to drive the rubber plug pressing plate (5) to move up and down to pressurize the inside of the oil chamber, so that the lubricating oil is pressurized to flow into the oil inlet pipe (303) through the oil outlet hole (304).

2. A compact reducer with a high speed ratio and high torque according to claim 1, characterized in that: The extrusion assembly comprises a pressure column (6) slidably connected to the top of the box body (3), a cross plate (601) arranged on the top of the pressure column (6), an elastic rope (602) arranged at the bottom of the cross plate (601), and a steel ball (603) arranged at the bottom of the elastic rope (602), wherein the bottom of the pressure column (6) is connected to the upper surface of the rubber plug pressing plate (5), and the pressure column (6) is located between the inner top wall of the box body (3) and the top wall of the rubber plug pressing plate (5) and a first spring (604) is sleeved on the rod wall.

3. The high speed ratio, high torque and compact reducer according to claim 1, characterized in that: The base (1) is provided with a knocking assembly for knocking the reducer body (2) to clean dust, the knocking assembly comprising a support plate (101) symmetrically arranged on the base (1), a rotating rod (7) rotatably connected to the support plate (101), a swing rod (701) arranged on the rotating rod (7), and a knocking plate (702) arranged at the bottom of the swing rod (701), wherein the rotating rod (7) is also provided with a rotating assembly.

4. A compact reducer with a high speed ratio and high torque according to claim 3, characterized in that: The rotating assembly comprises a gear (8) sleeved on the rod wall of the rotating rod (7) and a toothed plate (9) arranged on the side wall of the box body (3) through a connecting rod (901), and the toothed plate (9) is meshed with the gear (8).

5. A compact reducer with a high speed ratio and high torque according to claim 4, characterized in that: The box body (3) is also provided with an intermittent sealing assembly, which includes a sealing plate (10) slidably connected to the inner bottom wall of the box body (3) and cooperating with the oil outlet hole (304), a fixing rod (11) arranged on the top of the sealing plate (10), a second spring (1101) arranged between the fixing rod (11) and the inner wall of the box body (3), a winding wheel (12) sleeved on the rotating rod (7), and a pull rope (1201) wound around the winding wheel (12), wherein the end of the pull rope (1201) away from the winding wheel (12) passes through the box body (3) and is connected to the fixing rod (11).

6. A compact reducer with a high speed ratio and high torque according to claim 5, characterized in that: A sealing sleeve (305) is provided on the side wall of the box body (3), and the pull rope (1201) passes through the sealing sleeve (305).

7. The high speed ratio, high torque and compact reducer according to claim 1, characterized in that: The diameter of the oil outlet hole (304) is 1 mm-3 mm.

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