Parallel shaft helical gear speed reducer shell

Abstract

The utility model relates to the technical field of speed reducer shells, in particular to a parallel shaft helical gear speed reducer shell which comprises a first shell body, a second shell body tightly attached to the first shell body is arranged on one side of the first shell body, and an input port communicated with the second shell body is fixedly connected to the side, away from the first shell body, of the second shell body. The side, away from the second shell, of the first shell is fixedly connected with an output port communicated with the first shell, the outer sides of the first shell and the second shell are fixedly connected with fixing blocks, one side of each fixing block is provided with a round hole which is horizontally formed and penetrates through the fixing block, and the inner side of each round hole is provided with a bolt which is horizontally arranged; according to the parallel shaft helical gear speed reducer shell, through the arrangement of the fixing block, the round hole, the bolt, the nut, the pressing ring, the sealing groove and the graphite sealing ring, the sealing performance of the parallel shaft helical gear speed reducer shell can be enhanced, and the service life of the parallel shaft helical gear speed reducer shell can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of reducer housings, in particular to a parallel-axis helical gear reducer housing. Background Art

[0002] The parallel shaft helical gear reducer is the F series reducer among the four major series of reducers with hard tooth surface R, F, S, and K. The parallel shaft helical gear reducer uses a high-rigidity cast iron box with ribs, and the gears are made of high-quality alloy steel. The surface is carburized and quenched for hardening, and the teeth are finely ground. It has the advantages of smooth transmission, low noise, and large load-bearing capacity. It is widely used in light industry, food, beer and beverages, chemicals, escalators, automated warehousing equipment, construction, machinery, steel metallurgy, papermaking, wood-based panel machinery, automobile manufacturing, tobacco machinery, water conservancy, printing and packaging, pharmaceuticals, textiles, building materials, logistics, feed machinery, environmental protection and other fields. The parallel shaft helical gear reducer housing is a component of the parallel shaft helical gear reducer, which is used to accommodate and support the internal parts of the parallel shaft helical gear reducer.

[0003] Although the traditional parallel shaft helical gear reducer housing is widely used, it still has some shortcomings. For example, the sealing of the parallel shaft helical gear reducer housing is usually achieved by hard sealing between the housings through bolts that penetrate the housing. The bolts that penetrate the housing will reduce the strength of the housing and occupy the sealing area. Although the metal-to-metal hard sealing method has good sealing performance, once the metal is worn, the parallel shaft helical gear reducer housing needs to be replaced as a whole, otherwise its sealing performance will be greatly reduced. The cost of replacing the parallel shaft helical gear reducer housing is high, and when the existing parallel shaft helical gear reducer housing is filled with lubricating oil or drained with lubricating oil, the parallel shaft helical gear reducer housing needs to be disassembled to drain the oil. Frequent disassembly of the parallel shaft helical gear reducer housing will reduce its service life and allow external impurities to enter the inside of the parallel shaft helical gear reducer housing. Therefore, a parallel shaft helical gear reducer housing is proposed to address the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a parallel shaft helical gear reducer housing to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A parallel shaft helical gear reducer housing comprises a first housing, a second housing tightly fitted with the first housing is provided on one side of the first housing, an input port communicating with the second housing is fixedly connected to the side of the second housing away from the first housing, an output port communicating with the first housing is fixedly connected to the side of the first housing away from the second housing, a fixing block is fixedly connected to the outside of the first housing and the second housing, a circular hole horizontally arranged and passing through the fixing block is provided on one side of the fixing block, a horizontally arranged bolt is provided on the inner side of the circular hole, a nut is spirally connected to the outer side of the bolt, a clamping ring is fixedly connected to the side of the first housing close to the second housing, a sealing groove is fixedly connected to the side of the second housing close to the first housing, a graphite sealing ring is provided on the inner side of the sealing groove.

[0007] Preferably, the bottom end of the first shell is fixedly connected to a first threaded barrel that is vertically arranged and passes through the inner side of the first shell, the outer side of the first threaded barrel is spirally connected to a first threaded cover, the top end of the first shell is fixedly connected to a second threaded barrel that is inclined and passes through the inner side of the first shell, the end of the second threaded barrel away from the first shell is fixedly connected to a first magnet, the side of the first magnet away from the second threaded barrel is magnetically connected to a second magnet, the inner side of the second magnet is fixedly connected to a filter, and the outer side of the second threaded barrel is spirally connected to a second threaded cover.

[0008] Preferably, the first threaded barrel and the second threaded barrel are of the same shape and size, the first magnet is ring-shaped, and the first magnet and the second magnet are of the same shape and size.

[0009] Preferably, the number of the fixing blocks and the circular holes are both eight, and the number of the bolts and the nuts are both four.

[0010] Preferably, the inner diameter of the circular hole is larger than the outer diameter of the bolt, and the clamping ring and the sealing groove are tightly fitted with the graphite sealing ring.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. In the utility model, the sealing performance of the parallel shaft helical gear reducer housing can be enhanced and the service life of the parallel shaft helical gear reducer housing can be extended by setting the fixing block, circular hole, bolt, nut, clamping ring, sealing groove and graphite sealing ring. When the first housing and the second housing need to be installed, the motor output end is first connected to the input port, and its internal parts are arranged on the inner sides of the first housing and the second housing respectively, and the reducer output shaft is arranged on the inner side of the output port. Then, the first housing and the second housing are closed, and the clamping ring is inserted into the inner side of the sealing groove. At this time, the bolt is inserted into the inner side of the circular hole on one side of the fixing block, and the nut is screwed on the outer side of the bolt. The first housing can be tightly fitted with the second housing, and the clamping ring and the sealing groove are tightly fitted with the graphite sealing ring, thereby completing the installation of the first housing and the second housing. When the first housing and the second housing are not tightly sealed, the bolt and the nut are removed, and the graphite sealing ring is picked out from the inner side of the sealing groove by using a tool, and a new sealing ring is replaced, so that the first housing and the second housing can be re-sealed, and there is no need to replace the first housing and the second housing, thereby reducing costs.

[0013] 2. In the utility model, by providing the first threaded barrel, the first threaded cover, the second threaded barrel, the first magnet, the second magnet, the filter screen and the second threaded cover, it is possible to make it more convenient to add lubricating oil to or release lubricating oil from the device, and it is also possible to prevent impurities from entering the inside of the device. When the lubricating oil needs to be replaced, the second threaded cover is screwed out from the outside of the second threaded barrel, and the first threaded cover is screwed out from the outside of the first threaded barrel. At this time, the lubricating oil can flow out, and the air enters the inside of the device through the filter screen inside the second magnet, and the impurities are blocked from the outside by the filter screen. After the oil is released, the first threaded cover is screwed on the outside of the first threaded barrel, the second magnet is removed from the top of the first magnet, and the second magnet and the filter screen are cleaned. The lubricating oil is added to the inside of the device through the second threaded barrel. After the filling is completed, the cleaned second magnet is placed on the top of the first magnet, and the second threaded cover is screwed on the outside of the second threaded barrel to complete the replacement of the lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall front structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the overall rear structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the overall disassembled structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the second housing structure of the utility model;

[0018] Figure 5 This is a schematic diagram of the disassembled structure of the first shell of the utility model.

[0019] In the figure: 1. first shell; 2. second shell; 3. input port; 4. output port; 5. fixing block; 6. round hole; 7. bolt; 8. nut; 9. clamping ring; 10. sealing groove; 11. graphite sealing ring; 12. first threaded barrel; 13. first threaded cover; 14. second threaded barrel; 15. first magnet; 16. second magnet; 17. filter; 18. second threaded cover. DETAILED DESCRIPTION

[0020] 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.

[0021] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0022] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0023] See also Figure 1-5 , the utility model provides a technical solution:

[0024] A parallel shaft helical gear reducer housing comprises a first housing 1, a second housing 2 which is tightly fitted with the first housing 1 is provided on one side of the first housing 1, an input port 3 which is connected to the second housing 2 is fixedly connected to the side of the second housing 2 away from the first housing 1, an output port 4 which is connected to the first housing 1 is fixedly connected to the side of the first housing 1 away from the second housing 2, a fixing block 5 is fixedly connected to the outside of the first housing 1 and the second housing 2, a circular hole 6 which is horizontally arranged and passes through the fixing block 5 is provided on one side of the fixing block 5, a bolt 7 which is horizontally arranged is provided on the inner side of the circular hole 6, a nut 8 is spirally connected to the outer side of the bolt 7, a clamping ring 9 is fixedly connected to the side of the first housing 1 close to the second housing 2, a sealing groove 10 is fixedly connected to the side of the second housing 2 close to the first housing 1, and a graphite sealing ring 11 is provided on the inner side of the sealing groove 10.

[0025] A first threaded barrel 12 which is vertically arranged and passes through the inner side of the first shell 1 is fixedly connected to the bottom end of the first shell 1, a first threaded cover 13 is spirally connected to the outer side of the first threaded barrel 12, a second threaded barrel 14 which is inclined and passes through the inner side of the first shell 1 is fixedly connected to the top end of the first shell 1, a first magnet 15 is fixedly connected to the end of the second threaded barrel 14 away from the first shell 1, a second magnet 16 is magnetically connected to the side of the first magnet 15 away from the second threaded barrel 14, a filter screen 17 is fixedly connected to the inner side of the second magnet 16, a second threaded cover 18 is spirally connected to the outer side of the second threaded barrel 14, the first threaded barrel 12 and the second threaded barrel 14 are of the same shape and size, the first magnet 15 is annular in shape, the first magnet 15 and the second magnet 16 are of the same shape and size, the number of the fixing block 5 and the circular hole 6 are both eight, the number of the bolts 7 and the number of the nuts 8 are both four, the inner diameter of the circular hole 6 is larger than the outer diameter of the bolt 7, the clamping ring 9 and the sealing groove 10 are both tightly fitted with the graphite sealing ring 11.

[0026] Workflow: When the first shell 1 and the second shell 2 need to be installed, first connect the motor output end to the input port 3, and arrange its internal parts on the inside of the first shell 1 and the second shell 2 respectively, set the reducer output shaft on the inside of the output port 4, then close the first shell 1 and the second shell 2, insert the clamping ring 9 into the inside of the sealing groove 10, insert the bolt 7 into the inside of the circular hole 6 on one side of the fixing block 5, and screw the nut 8 on the outside of the bolt 7, the first shell 1 can be tightly fitted with the second shell 2, and the clamping ring 9 and the sealing groove 10 are tightly fitted with the graphite sealing ring 11, thereby completing the installation of the first shell 1 and the second shell 2. When the first shell 1 and the second shell 2 are not tightly sealed, remove the bolts 7 and nuts 8, use tools to pick out the graphite sealing ring 11 from the inside of the sealing groove 10, and replace the new sealing ring to make the first shell 1 and the second shell 2 tightly sealed. The body 1 and the second shell 2 are resealed, and there is no need to replace the first shell 1 and the second shell 2, thereby reducing costs. When it is necessary to replace the lubricating oil, the second threaded cover 18 is screwed out from the outside of the second threaded barrel 14, and the first threaded cover 13 is screwed out from the outside of the first threaded barrel 12. At this time, the lubricating oil can flow out, and the air enters the inside of the device through the filter 17 on the inside of the second magnet 16, and the impurities are blocked from the outside by the filter 17. After the oil is drained, the first threaded cover 13 is screwed on the outside of the first threaded barrel 12, and the second magnet 16 is removed from the top of the first magnet 15, and the second magnet 16 and the filter 17 are cleaned, and the lubricating oil is added to the inside of the device through the second threaded barrel 14. After the filling is completed, the cleaned second magnet 16 is placed on the top of the first magnet 15, and the second threaded cover 18 is screwed on the outside of the second threaded barrel 14 to complete the replacement of the lubricating oil.

[0027] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The standard parts used in this utility model can be purchased from the market, and the special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt the conventional means such as bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0028] Although 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 parallel shaft helical gear reducer housing, comprising a first housing (1), characterized in that: A second shell (2) is provided on one side of the first shell (1) and is tightly fitted with the first shell (1); an input port (3) that is connected to the second shell (2) is fixedly connected on a side of the second shell (2) away from the first shell (1); an output port (4) that is connected to the first shell (1) is fixedly connected on a side of the first shell (1) away from the second shell (2); a fixing block (5) is fixedly connected to the outside of both the first shell (1) and the second shell (2); a circular hole (6) that is horizontally arranged and passes through the fixing block (5) is provided on one side of the fixing block (5); a bolt (7) that is horizontally arranged is provided inside the circular hole (6); a nut (8) is spirally connected to the outside of the bolt (7); a clamping ring (9) is fixedly connected on a side of the first shell (1) close to the second shell (2); a sealing groove (10) is fixedly connected on a side of the second shell (2) close to the first shell (1); a graphite sealing ring (11) is provided inside the sealing groove (10).

2. The parallel shaft helical gear reducer housing according to claim 1, characterized in that: The bottom end of the first shell (1) is fixedly connected to a first threaded barrel (12) which is vertically arranged and passes through the inner side of the first shell (1); the outer side of the first threaded barrel (12) is spirally connected to a first threaded cover (13); the top end of the first shell (1) is fixedly connected to a second threaded barrel (14) which is inclined and passes through the inner side of the first shell (1); an end of the second threaded barrel (14) away from the first shell (1) is fixedly connected to a first magnet (15); a side of the first magnet (15) away from the second threaded barrel (14) is magnetically connected to a second magnet (16); a filter screen (17) is fixedly connected to the inner side of the second magnet (16); and a second threaded cover (18) is spirally connected to the outer side of the second threaded barrel (14).

3. The parallel shaft helical gear reducer housing according to claim 2, characterized in that: The first threaded cylinder (12) and the second threaded cylinder (14) are of the same shape and size, the first magnet (15) is in the shape of a ring, and the first magnet (15) and the second magnet (16) are of the same shape and size.

4. The parallel shaft helical gear reducer housing according to claim 1, characterized in that: The number of the fixing blocks (5) and the circular holes (6) are both eight, and the number of the bolts (7) and the nuts (8) are both four.

5. The parallel shaft helical gear reducer housing according to claim 1, characterized in that: The inner diameter of the circular hole (6) is larger than the outer diameter of the bolt (7), and the clamping ring (9) and the sealing groove (10) are both tightly fitted with the graphite sealing ring (11).

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