Precise helical rack with improved structure

Abstract

The utility model discloses a precise bevel gear rack with improved structure, including head part, tooth piece and tail part, be equipped with a plurality of tooth pieces between head part and tail part, and a plurality of tooth pieces mutually insert and connect, the utility model discloses after connecting tooth piece through head part, the second insert block of tooth piece, second insert post respectively insert into the first insertion slot and the first column slot of another tooth piece, and the second insertion slot of tooth piece, second column slot insert the first insert block and the first insert post of another tooth piece, while the second V type slot of tooth piece and the first V type slot of another tooth piece merge, and after merging, insert the rectangular bolt in the inside, adopt the cooperation of the mortise and tenon structure in bevel gear, so that tooth piece can be replaced alone, avoid the tedious repair work when tooth collapses, increase the service life of whole bevel gear.

Description

Technical Field

[0001] This utility model relates to the field of helical rack technology, and specifically to a precision helical rack with an improved structure. Background Technology

[0002] A rack is a special type of gear with teeth distributed along a strip. Racks are divided into spur racks and helical racks, which are paired with spur gears and helical gears respectively. The tooth profile of a rack is a straight line rather than an involute (or a plane for the tooth surface), equivalent to a cylindrical gear with an infinite pitch circle radius. Existing helical racks suffer from tooth fatigue and breakage during prolonged use. After breakage, the teeth need to be repaired, but this repair method is cumbersome, and the repaired teeth are prone to re-breakage, which reduces the overall service life of the helical rack. Therefore, a precision helical rack with an improved structure is proposed to address these problems. Utility Model Content

[0003] The purpose of this invention is to provide a precision helical rack with an improved structure to solve the problems mentioned in the background.

[0004] To solve the above-mentioned technical problems, this utility model specifically provides the following technical solution: a precision helical rack with an improved structure, comprising a head component, toothed components, and a tail component. Multiple toothed components are provided between the head component and the tail component, and these toothed components are interlocked with each other. A first insert block is fixedly connected to the lower side of one toothed component, and multiple first insert posts are fixedly connected to the side of the first insert block. A first V-groove is formed in the upper part of the first insert block. A first slot is formed in the upper part of one side of the toothed component, and multiple first post grooves are formed in the first slot. A second insert block is fixedly connected to the upper part of the other side of the toothed component. Furthermore, multiple second inserts are fixedly connected to the side of the second insert block, and a second V-groove is opened inside the lower part of the second insert block. A second slot is opened inside the lower part of the other side of the toothed component, and multiple second post slots are opened inside the second slot. The first insert block and the first insert on one toothed component are respectively inserted into the second slot and the second post slot on another toothed component for sliding connection. The second insert block and the second insert on one toothed component are respectively inserted into the first slot and the first post slot on another toothed component for sliding connection. At the same time, a rectangular pin is inserted into the merged first V-groove and the second V-groove for fixed connection.

[0005] In this process, after the head component is connected to the first toothed component, the second insert and the second post of the first toothed component are inserted into the first slot and the first post groove of the second toothed component, respectively. At the same time, the second V-groove of the first toothed component merges with the first V-groove of the second toothed component, and a rectangular pin is inserted inside after the merger. In this way, the first toothed component and the second toothed component are connected as one unit. Then, the second toothed component is connected to the third toothed component in the same way, and so on. When the last toothed component is connected to the tail component, and the head component, multiple toothed components and the tail component are combined to form a complete oblique rack, if the tooth of one of the toothed components breaks, the rectangular pin can be removed and the broken toothed component can be replaced.

[0006] Preferably, a third insert block is fixedly connected to the upper side of one side of the head component, and multiple third insert posts are fixedly connected to the side of the third insert block. At the same time, a third V-shaped groove is opened in the lower part of the third insert block, and a third slot is opened in the lower part of one side of the head component, and multiple third post grooves are opened in the third slot.

[0007] Preferably, the third insert block and the third insert post are slidably connected to the first slot and the first post groove, respectively, and the first insert block and the first insert post are slidably connected to the third slot and the third post groove, respectively.

[0008] Preferably, the third V-groove is fixedly connected to the first V-groove by inserting a rectangular pin inside.

[0009] Preferably, a fourth insert block is fixedly connected to the lower side of one side of the tail component, and multiple fourth insert posts are fixedly connected to the side of the fourth insert block. At the same time, a fourth V-shaped groove is opened in the upper part of the fourth insert block, and a fourth slot is opened in the upper part of one side of the tail component, and multiple fourth post slots are opened in the fourth slot.

[0010] Preferably, the fourth insert block and the fourth insert post are slidably connected to the second slot and the second post groove, respectively, and the second insert block and the second insert post are slidably connected to the fourth slot and the fourth post groove, respectively.

[0011] Preferably, the fourth V-groove and the second V-groove are connected by a rectangular insert pin.

[0012] Preferably, the head component and the teeth above the toothed component are both fitted with reinforcing edges for fixed connection.

[0013] Compared with the prior art, this utility model has the following advantages:

[0014] In this invention, after the toothed component is connected via the head component, the second insert and the second post of the toothed component are respectively inserted into the first slot and the first post groove of another toothed component. At the same time, the second V-groove of the toothed component merges with the first V-groove of the other toothed component, and a rectangular pin is inserted inside after merging. The use of the tenon and mortise structure in the oblique rack allows the toothed component to be replaced individually, avoiding the tedious repair work when the tooth breaks and increasing the service life of the entire oblique rack. Attached Figure Description

[0015] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0017] Figure 2 This is a schematic diagram of the middle gear structure of this utility model;

[0018] Figure 3 This is a schematic left-side view of the middle gear of this utility model;

[0019] Figure 4 This is a schematic diagram of the right side view of the middle gear component of this utility model;

[0020] Figure 5 This is a schematic diagram of the head gear structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the tail component structure of this utility model.

[0022] The labels in the attached diagram represent the following:

[0023] 1. Head assembly; 101. Third slot; 1011. Third post groove; 2. Toothed component; 201. First slot; 2011. First post groove; 202. Second slot; 2021. Second post groove; 3. Tail assembly; 301. Fourth slot; 3011. Fourth post groove; 4. Rectangular pin; 5. First insert block; 6. Second insert block; 7. First post; 8. Second post; 9. First V-groove; 10. Second V-groove; 11. Third insert block; 12. Fourth insert block; 13. Third post; 14. Fourth post; 15. Third V-groove; 16. Fourth V-groove; 17. Reinforcing edge. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-6 As shown, this utility model provides a precision helical rack with an improved structure, including a head component 1, toothed components 2, and a tail component 3. Multiple toothed components 2 are provided between the head component 1 and the tail component 3, and these components are interlocked. A first insert block 5 is fixedly connected to the lower side of one toothed component 2, and multiple first insert posts 7 are fixedly connected to the side of the first insert block 5. A first V-groove 9 is formed in the upper part of the first insert block 5. A first slot 201 is formed in the upper part of one side of the toothed component 2, and multiple first post grooves 2011 are formed within the first slot 201. A second insert block 6 is fixedly connected to the upper part of the other side of the toothed component 2, and multiple first post grooves 2011 are fixedly connected to the side of the second insert block 6. A second insert post 8 is provided, and a second V-groove 10 is provided below the second insert block 6. A second slot 202 is provided below the other side of the toothed component 2, and multiple second post grooves 2021 are provided in the second slot 202. The first insert block 5 and the first insert post 7 on one toothed component 2 are respectively inserted into the second slot 202 and the second post groove 2021 on another toothed component 2 and are slidably connected. The second insert block 6 and the second insert post 8 on one toothed component 2 are respectively inserted into the first slot 201 and the first post groove 2011 on another toothed component 2 and are slidably connected. At the same time, a rectangular pin 4 is inserted into the combined interior of the first V-groove 9 and the second V-groove 10 for fixed connection.

[0026] In this embodiment, a third insert block 11 is fixedly connected to the upper side of one side of the head component 1, and a plurality of third insert posts 13 are fixedly connected to the side of the third insert block 11. At the same time, a third V-shaped groove 15 is opened in the lower part of the third insert block 11, and a third slot 101 is opened in the lower part of one side of the head component 1. A plurality of third post slots 1011 are opened in the third slot 101.

[0027] Furthermore, the third insert block 11 and the third insert post 13 are respectively inserted into the first slot 201 and the first post groove 2011 and slidably connected, and the first insert block 5 and the first insert post 7 are respectively inserted into the third slot 101 and the third post groove 1011 and slidably connected.

[0028] Furthermore, the third V-groove 15 is fixedly connected to the first V-groove 9 by inserting a rectangular pin 4 inside.

[0029] The first insert 5 and the first insert 7 of the toothed component 2 are inserted into the third slot 101 and the third column groove 1011 provided on one side of the head component 1, and the third insert 11 and the third insert 13 of the head component 1 are inserted into the first slot 201 and the first column groove 2011 on one side of the toothed component 2, so that the head component 1 and the first toothed component 2 are connected together.

[0030] In this embodiment, a fourth insert block 12 is fixedly connected to the lower side of one side of the tail component 3, and a plurality of fourth insert posts 14 are fixedly connected to the side of the fourth insert block 12. At the same time, a fourth V-shaped groove 16 is opened in the upper part of the fourth insert block 12, and a fourth slot 301 is opened in the upper part of one side of the tail component 3. A plurality of fourth post slots 3011 are opened in the fourth slot 301.

[0031] Furthermore, the fourth insert block 12 and the fourth insert post 14 are slidably connected to the second slot 202 and the second post groove 2021 respectively, and the second insert block 6 and the second insert post 8 are slidably connected to the fourth slot 301 and the fourth post groove 3011 respectively.

[0032] Furthermore, the fourth V-groove 16 and the second V-groove 10 are joined by an internal rectangular insert pin 4 for fixed connection.

[0033] The second insert 6 and the second insert 8 on the side of the toothed component 2 are respectively inserted into the fourth slot 301 and the fourth post slot 3011 on the side of the tail component 3, and the fourth insert 12 and the fourth insert 14 are respectively inserted into the second slot 202 and the second post slot 2021 on the side of the toothed component 2, so that the tail component 3 is connected to the last toothed component 2.

[0034] In this embodiment, the head component 1 and the teeth on the tooth component 2 are fixedly connected by a reinforcing edge 17 fitted on both sides.

[0035] Working principle:

[0036] After the head component 1 is connected to the first toothed component 2, the second insert 6 and the second insert 8 of the first toothed component 2 are respectively inserted into the first slot 201 and the first post groove 2011 of the second toothed component 2. The first insert 5 and the first insert 7 of the second toothed component 2 are inserted into the second slot 202 and the second post groove 2021 of the first toothed component 2. At the same time, the second V-groove 10 of the first toothed component 2 and the first V-groove 9 of the second toothed component 2 are merged. After merging, a rectangular pin 4 is inserted inside. In this way, the first toothed component 2 and the second toothed component 2 are connected as one unit. Then, the second toothed component 2 is connected to the third toothed component 2 in the same way. And so on, until the last toothed component 2 is connected to the tail component 3, and the head component 1, multiple toothed components 2 and tail component 3 are combined to form a complete oblique rack. When the tooth of one of the toothed components 2 breaks, the rectangular pin 4 can be removed and the broken toothed component 2 can be replaced.

[0037] In addition, the rectangular pin 4 inserted into the structure connecting the head part 1, the toothed part 2 and the tail part 3 is a mortise and tenon joint connection. It will not slide out to the sides during use. It can only be removed after an external force impact. In this way, the entire oblique rack prevents the head part 1, the toothed part 2 and the tail part 3 from falling off during use.

[0038] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0039] The above embodiments are merely exemplary embodiments of this application and are not intended to limit this application. The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.

Claims

1. A precision helical rack with improved structure, comprising a head part (1), a tooth part (2) and a tail part (3), characterized in that: Multiple toothed components (2) are provided between the head component (1) and the tail component (3), and the multiple toothed components (2) are interlocked with each other. A first insert block (5) is fixedly connected to the lower side of one side of the toothed component (2), and multiple first insert posts (7) are fixedly connected to the side of the first insert block (5). At the same time, a first V-shaped groove (9) is opened in the upper part of the first insert block (5). A first slot (201) is opened in the upper part of one side of the toothed component (2), and multiple first post slots (2011) are opened in the first slot (201). A second insert block (6) is fixedly connected to the upper part of the other side of the toothed component (2), and multiple second insert posts (8) are fixedly connected to the side of the second insert block (6). At the same time, a second V-shaped groove is opened in the lower part of the second insert block (6). The toothed component (2) has a second slot (202) on the lower side of the slot (10), and a plurality of second column slots (2021) are provided in the second slot (202). The first insert (5) and the first column (7) on one toothed component (2) are respectively inserted into the second slot (202) and the second column slot (2021) on another toothed component (2) and are slidably connected. The second insert (6) and the second column (8) on one toothed component (2) are respectively inserted into the first slot (201) and the first column slot (2011) on another toothed component (2) and are slidably connected. At the same time, a rectangular pin (4) is inserted into the combined first V-groove (9) and the second V-groove (10) for fixed connection.

2. The precision helical rack with improved structure according to claim 1, characterized in that: A third insert (11) is fixedly connected to the upper side of one side of the head component (1), and a plurality of third insert posts (13) are fixedly connected to the side of the third insert (11). At the same time, a third V-shaped groove (15) is opened in the lower part of the third insert (11), and a third slot (101) is opened in the lower part of one side of the head component (1), and a plurality of third post slots (1011) are opened in the third slot (101).

3. The precision helical rack with improved structure according to claim 2, characterized in that: The third insert (11) and the third insert (13) are respectively inserted into the first slot (201) and the first column groove (2011) and slidably connected, and the first insert (5) and the first insert (7) are respectively inserted into the third slot (101) and the third column groove (1011) and slidably connected.

4. The precision helical rack with improved structure according to claim 3, characterized in that: The third V-groove (15) is fixedly connected to the first V-groove (9) by inserting a rectangular pin (4).

5. The precision helical rack with improved structure according to claim 1, wherein: The tail component (3) is fixedly connected to a fourth insert block (12) on one side below, and a plurality of fourth insert posts (14) are fixedly connected to the side of the fourth insert block (12). At the same time, a fourth V-shaped groove (16) is opened in the upper part of the fourth insert block (12), and a fourth slot (301) is opened in the upper part of one side of the tail component (3). A plurality of fourth post slots (3011) are opened in the fourth slot (301).

6. The precision helical rack with improved structure according to claim 5, characterized in that: The fourth insert (12) and the fourth insert (14) are respectively inserted into the second slot (202) and the second column groove (2021) and slidably connected, and the second insert (6) and the second insert (8) are respectively inserted into the fourth slot (301) and the fourth column groove (3011) and slidably connected.

7. The precision helical rack with improved structure according to claim 6, characterized in that: The fourth V-shaped groove (16) is fixedly connected with the second V-shaped groove (10) by inserting a rectangular plug (4) inside.

8. The precision helical rack with improved structure according to claim 1, wherein: The head part (1) and the teeth of the tooth part (2) are fixedly connected by setting a reinforcing edge part (17) on the top of the tooth part (2).

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