Speed reducer box body
By introducing sealing components and reinforcement components into the reducer case, the problems of oil seepage and insufficient strength are solved, and better sealing and service life are achieved.
Patent Information
- Application Number
- CN202420822390.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-19
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-04-19
AI Technical Summary
The lack of sealing structure of the existing reducer chassis causes oil seepage problems and is poor in strength, especially at corners and tops that are prone to cracking.
A reducer case including a fixed base plate, a reducer lower case and an upper case are designed, and sealing components and reinforcement components are provided between the upper case and the lower case to improve sealing and strength. The sealing assembly uses sealing strips, extruded strips and water guide holes, and the reinforcement assembly includes reinforcement strips, auxiliary reinforcement strips and corner reinforcements.
It effectively avoids oil seepage, improves the sealing and strength of the box, and extends the service life.
Smart Images
Figure CN222277450U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of reducers, in particular to a reducer housing. Background Art
[0002] The reducer is composed of a housing, bearings, input shaft, output shaft and gear assembly. The housing is connected by an upper housing and a lower housing. A bearing hole is provided between the upper housing and the lower housing for installing bearings. In actual use, oil is injected into the housing. The liquid level of the oil is usually about 1 / 3 of the internal height of the housing. The gears are partially immersed in the oil. The oil can lubricate the gears on the one hand and dissipate heat on the other.
[0003] A reducer housing provided by publication number "CN217583108U" is provided with an upper oil-containing heat dissipation groove and a lower oil-containing heat dissipation groove on the circumferential outer side of the bearing hole. When the reducer is working, since the gears are partially immersed in the oil, part of the oil can be splashed as the gears rotate. Part of the splashed oil will enter the upper oil-containing heat dissipation groove and the lower oil-containing heat dissipation groove arranged on the circumferential outer side of the bearing hole, and then fall back to the bottom of the housing under the action of gravity. In this process, the oil can take away the heat from the bearing and the bearing hole, thereby realizing heat dissipation at the bearing position.
[0004] However, the above technical solutions and the prior art have the following defects:
[0005] First of all, there is no corresponding sealing structure between the upper box body and the lower box body, which leads to oil leakage at the connection between the upper box body and the lower box body during actual use, which not only accelerates the loss of lubricating oil, but also affects the aesthetics of the reducer case. Some reducer cases in the prior art have poor strength, especially at the corners and the top, which are prone to cracking during use, and are not practical. Utility Model Content
[0006] The purpose of the utility model is to provide a reducer housing to solve the problems raised in the above background technology.
[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0008] A reducer case comprises a fixed bottom plate, a reducer lower case and a reducer upper case, wherein the fixed bottom plate is fixedly connected to the side of the reducer lower case, the reducer upper case is installed on the upper end face of the reducer lower case, a sealing component is arranged between the reducer lower case and the reducer upper case, and the sealing component is used to improve the sealing between the reducer lower case and the reducer upper case, and a reinforcing component is arranged on the upper end face of the reducer upper case, and the reinforcing component is used to improve the strength of the reducer upper case.
[0009] Preferably, the sealing assembly comprises a sealing strip, an upper sealing groove and a lower sealing groove, the lower end surface of the reducer upper housing is provided with an upper sealing groove, the upper end surface of the reducer lower housing is provided with a lower sealing groove, and a sealing strip is placed inside the lower sealing groove.
[0010] Preferably, an extruded rubber strip is installed on the upper side of the upper sealing groove, first water guide holes are opened on both sides of the upper end surface of the reducer upper housing, and second water guide holes are opened on both sides of the upper end surface of the reducer upper housing.
[0011] Preferably, the reinforcement component includes corner reinforcements, reinforcement ribs and auxiliary reinforcement strips. The upper end surface of the reducer upper case is fixedly connected with a plurality of reinforcement ribs, a plurality of auxiliary reinforcement strips are fixedly connected between the plurality of reinforcement ribs, and the left and right end surfaces of the reducer lower case are fixedly connected with corner reinforcements.
[0012] Preferably, the front and rear end surfaces of the reducer lower housing are fixedly connected with reinforcing ribs, and the reinforcing ribs are triangular in shape, and mounting through holes are symmetrically opened on the left and right sides of the fixed bottom plate.
[0013] Preferably, the extruded rubber strip is made of water-swellable rubber, the first water guide hole and the second water guide hole are both connected to the upper sealing groove, and the sealing strip is made of graphite packing.
[0014] Preferably, an oil replenishing seat is fixedly connected to the upper end surface of the reducer upper housing, a first sealing cover is installed on the upper end of the oil replenishing seat, an oil drain seat is fixedly connected to the lower side of the right end surface of the reducer lower housing, and a second sealing cover is installed on the right end of the oil drain seat.
[0015] Compared with the prior art, the beneficial effects of the utility model are:
[0016] 1. The utility model seals the upper housing and the lower housing of the reducer by installing a sealing strip. When water is injected into the first water guide hole and the second water guide hole, the first water guide hole and the second water guide hole guide the water into the upper sealing groove, so that the extruded rubber strip expands when it meets water and squeezes the sealing strip, thereby further improving the sealing performance of the sealing strip, thereby avoiding oil leakage at the connection between the upper housing and the lower housing of the reducer;
[0017] 2. The utility model can further improve the strength of the upper end surface of the reducer upper case by fixedly connecting the reinforcing ribs and the auxiliary reinforcing strips, thereby avoiding cracking of the upper end surface of the reducer upper case, and the corner reinforcement will strengthen the four corners of the reducer lower case to avoid deformation and cracking at the corners of the reducer lower case, thereby ensuring the service life of the reducer upper case and the reducer lower case. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the main structure of the utility model;
[0019] Figure 2 It is a rear view structural diagram of the upper housing of the reducer and the lower housing of the reducer in the utility model;
[0020] Figure 3 It is a front cross-sectional view of the sealing component and the reinforcing component in the utility model;
[0021] Figure 4 This is a structural diagram of the utility model after the upper box of the reducer is disassembled;
[0022] Figure 5 It is a structural diagram of the lower box of the reducer in the utility model.
[0023] In the figure: 1. fixed bottom plate; 2. reducer lower housing; 21. oil drain seat; 22. second sealing cover; 3. sealing assembly; 31. sealing strip; 32. extruded rubber strip; 33. first water guide hole; 34. second water guide hole; 35. upper sealing groove; 36. lower sealing groove; 4. reducer upper housing; 41. oil replenishing seat; 42. first sealing cover; 5. reinforcement assembly; 51. reinforcement rib; 52. corner reinforcement; 53. reinforcement rib; 54. auxiliary reinforcement strip. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] See also Figure 1-5 , the utility model provides a technical solution:
[0026] Embodiment 1:
[0027] A reducer case comprises a fixed base plate 1, a reducer lower case 2 and a reducer upper case 4. The fixed base plate 1 is fixedly connected to the side of the reducer lower case 2. The fixed base plate 1 and the reducer lower case 2 are an integrated structure. The fixed base plate 1 is symmetrically provided with mounting through holes on the left and right sides. The mounting through holes are convenient for the installer to install and fix the fixed base plate 1 with the help of external expansion bolts, so that the fixed base plate 1 can fix the reducer lower case 2. The reducer upper case 4 is installed on the upper end surface of the reducer lower case 2. The reducer upper case 4 and the reducer lower case 2 are made of the same material. The reducer upper case 4 and the reducer lower case 2 constitute the reducer case. The reducer upper case 4 and the reducer lower case 2 are provided with oil heat dissipation grooves on the front and back sides of the inner walls of the reducer upper case 4 and the reducer lower case 2. The oil heat dissipation grooves facilitate the entry of lubricating oil to take away the heat from the bearing position, thereby realizing the heat dissipation at the bearing position.
[0028] The upper end surface of the reducer upper housing 4 is fixedly connected with an oil filling seat 41, and the oil filling seat 41 and the reducer upper housing 4 are an integrated structure. The oil filling seat 41 is convenient for the staff to add lubricating oil to the reducer lower housing 2 and the reducer upper housing 4. A first sealing cover 42 is installed on the upper end of the oil filling seat 41. The first sealing cover 42 is connected to the oil filling seat 41 by a threaded connection. The first sealing cover 42 will block the opening at the upper end of the oil filling seat 41. A first sealing ring is installed inside the first sealing cover 42. The first sealing ring makes the sealing between the first sealing cover 42 and the oil filling seat 41 more Well, an oil drain seat 21 is fixedly connected to the lower side of the right end surface of the lower housing 2 of the reducer. The oil drain seat 21 and the lower housing 2 of the reducer are an integrated structure. The oil drain seat 21 is convenient for the staff to drain and replace the lubricating oil inside the lower housing 2 of the reducer. A second sealing cover 22 is installed on the right end of the oil drain seat 21. The second sealing cover 22 is connected to the oil drain seat 21 by a threaded connection. The second sealing cover 22 will seal the opening at the right end of the oil drain seat 21. A second sealing ring is installed inside the second sealing cover 22. The second sealing ring makes the sealing between the second sealing cover 22 and the oil drain seat 21 better.
[0029] A sealing component 3 is arranged between the reducer lower housing 2 and the reducer upper housing 4, and the sealing component 3 is used to improve the sealing between the reducer lower housing 2 and the reducer upper housing 4. A reinforcing component 5 is arranged on the upper end surface of the reducer upper housing 4, and the reinforcing component 5 is used to improve the strength of the reducer upper housing 4.
[0030] The sealing assembly 3 includes a sealing strip 31, an upper sealing groove 35 and a lower sealing groove 36. An upper sealing groove 35 is provided on the lower end surface of the reducer upper housing 4. The upper sealing groove 35 matches the sealing strip 31 and the extruded rubber strip 32. The upper sealing groove 35 facilitates the sealing strip 31 and the extruded rubber strip 32 to be located inside the lower end surface of the reducer upper housing 4. A lower sealing groove 36 is provided on the upper end surface of the reducer lower housing 2. The lower sealing groove 36 matches the sealing strip 31. The lower sealing groove 36 facilitates the sealing strip 31 to be located inside the upper end surface of the reducer lower housing 2, so as to limit the lower half of the sealing strip 31. A sealing strip 31 is placed inside the lower sealing groove 36. The sealing strip 31 is made of graphite packing. The sealing strip 31 made of graphite packing has good self-lubrication and thermal conductivity, small friction coefficient, good softness and high strength, so as to seal the connection between the reducer upper housing 4 and the reducer lower housing 2.
[0031] An extruded rubber strip 32 is installed on the upper side of the upper sealing groove 35. The extruded rubber strip 32 is made of water-swelling rubber. The extruded rubber strip 32 made of water-swelling rubber will expand and deform when it comes into contact with water, and at the same time generate a huge contact pressure to further squeeze the sealing strip 31, so that the sealing strip 31 fills the upper sealing groove 35 and the lower sealing groove 36, thereby improving the sealing performance of the sealing strip 31. The left and right sides of the upper end surface of the reducer upper housing 4 are provided with first water guide holes 33, and a plurality of first water guide holes 33 are provided, and the plurality of first water guide holes 33 are provided. The first water guide holes 33 have the same specifications. Second water guide holes 34 are provided on both sides of the upper end surface of the reducer upper housing 4. A plurality of second water guide holes 34 are provided, and the plurality of second water guide holes 34 have the same specifications. The plurality of first water guide holes 33 and the second water guide holes 34 are all connected to the upper sealing groove 35. The plurality of first water guide holes 33 and the second water guide holes 34 facilitate the staff to inject an appropriate amount of water into the upper sealing groove 35 with the help of an external syringe, so that the extruded rubber strip 32 in the upper sealing groove 35 expands when it encounters water.
[0032] Embodiment 2:
[0033] On the basis of Example 1, in this embodiment, by fixedly connecting the reinforcing ribs 53 and the auxiliary reinforcing strips 54, the strength of the upper end surface of the reducer upper case 4 can be further improved to avoid cracking of the upper end surface of the reducer upper case 4, and the corner reinforcement 52 will reinforce the four corners of the reducer lower case 2 to avoid deformation and cracking at the corners of the reducer lower case 2, thereby ensuring the service life of the reducer upper case 4 and the reducer lower case 2.
[0034] The reinforcing assembly 5 includes a corner reinforcement piece 52, a reinforcement rib 53 and an auxiliary reinforcement strip 54. A plurality of reinforcement ribs 53 are fixedly connected to the upper end surface of the reducer upper housing 4. The material of the plurality of reinforcement ribs 53 is the same as that of the reducer upper housing 4. A plurality of auxiliary reinforcement strips 54 are fixedly connected between the plurality of reinforcement ribs 53. The plurality of reinforcement ribs 53 and the plurality of auxiliary reinforcement strips 54 can further improve the strength of the upper end surface of the reducer upper housing 4 to avoid cracking of the upper end surface of the reducer upper housing 4. The left and right end surfaces of the reducer lower housing 2 are fixedly connected to the corner reinforcement pieces 52. The corner reinforcement pieces 52 will reinforce the four corners of the reducer lower housing 2 to avoid deformation and cracking of the corners of the reducer lower housing 2. The front and rear end surfaces of the reducer lower housing 2 are fixedly connected to the reinforcement ribs 51, and the reinforcement ribs 51 are triangular in shape. The triangular reinforcement ribs 51 can further improve the connection stability between the fixed base plate 1 and the reducer lower housing 2.
[0035] Working principle: By opening the upper sealing groove 35 and the lower sealing groove 36, it is convenient for the sealing strip 31 to be sealed between the reducer upper housing 4 and the reducer lower housing 2. When the staff injects water into the multiple first water guide holes 33 and the second water guide holes 34 respectively with the help of an external syringe, the multiple first water guide holes 33 and the second water guide holes 34 will guide the injected water into the upper sealing groove 35. At this time, the extruded rubber strip 32 in the upper sealing groove 35 will swell when it encounters water and squeeze the sealing strip 31, thereby further improving the sealing performance of the sealing strip 31, thereby avoiding the reducer upper housing 4 and the reducer lower housing. 2 oil seepage occurs at the connection; during the use of the reducer upper case 4 and the reducer lower case 2, multiple reinforcing ribs 53 and multiple auxiliary reinforcing strips 54 can further improve the strength of the upper end surface of the reducer upper case 4 to avoid cracking of the upper end surface of the reducer upper case 4, and the corner reinforcement 52 will reinforce the four corners of the reducer lower case 2 to avoid deformation and cracking at the corners of the reducer lower case 2, and the reinforcing ribs 51 can further improve the connection stability between the fixed bottom plate 1 and the reducer lower case 2, so as to ensure the service life of the reducer upper case 4 and the reducer lower case 2.
[0036] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A reducer housing, comprising a fixed base plate (1), a reducer lower housing (2) and a reducer upper housing (4), characterized in that: The side of the reducer lower case (2) is fixedly connected to a fixed bottom plate (1); the upper end surface of the reducer lower case (2) is installed with a reducer upper case (4); a sealing component (3) is arranged between the reducer lower case (2) and the reducer upper case (4); and the sealing component (3) is used to improve the sealing performance between the reducer lower case (2) and the reducer upper case (4); and a reinforcing component (5) is arranged on the upper end surface of the reducer upper case (4); and the reinforcing component (5) is used to improve the strength of the reducer upper case (4).
2. A reducer housing according to claim 1, characterized in that: The sealing assembly (3) comprises a sealing strip (31), an upper sealing groove (35) and a lower sealing groove (36); the lower end surface of the reducer upper housing (4) is provided with an upper sealing groove (35); the upper end surface of the reducer lower housing (2) is provided with a lower sealing groove (36); and the sealing strip (31) is placed inside the lower sealing groove (36).
3. A reducer housing according to claim 2, characterized in that: An extruded rubber strip (32) is installed on the upper side of the upper sealing groove (35), first water guide holes (33) are provided on both the left and right sides of the upper end surface of the reducer upper housing (4), and second water guide holes (34) are provided on both the front and rear sides of the upper end surface of the reducer upper housing (4).
4. A reducer housing according to claim 1, characterized in that: The reinforcement assembly (5) comprises a corner reinforcement member (52), reinforcement ribs (53) and auxiliary reinforcement bars (54); the upper end surface of the reducer upper housing (4) is fixedly connected to a plurality of reinforcement ribs (53); a plurality of auxiliary reinforcement bars (54) are fixedly connected between the plurality of reinforcement ribs (53); and the left and right end surfaces of the reducer lower housing (2) are fixedly connected to the corner reinforcement member (52).
5. The reducer housing according to claim 1, characterized in that: The front and rear end surfaces of the reducer lower housing (2) are fixedly connected with reinforcing ribs (51), and the reinforcing ribs (51) are triangular in shape. The fixed bottom plate (1) has mounting through holes symmetrically formed on the left and right sides.
6. A reducer housing according to claim 3, characterized in that: The extruded rubber strip (32) is made of water-swellable rubber, the first water guide hole (33) and the second water guide hole (34) are both connected to the upper sealing groove (35), and the sealing strip (31) is made of graphite packing.
7. The reducer housing according to claim 1, characterized in that: The upper end surface of the reducer upper housing (4) is fixedly connected to an oil replenishing seat (41), and a first sealing cover (42) is installed on the upper end of the oil replenishing seat (41). The lower side of the right end surface of the reducer lower housing (2) is fixedly connected to an oil draining seat (21), and a second sealing cover (22) is installed on the right end of the oil draining seat (21).