Driven gear column

Abstract

The utility model belongs to the technical field of gear columns, and particularly relates to a driven gear column which comprises a mandrel. The tooth-shaped structure is movably arranged on the outer side wall face of the core shaft, the tooth-shaped structure can be replaced and maintained after the tooth-shaped structure is abraded, the core shaft is reserved for continuous use, and therefore the use cost can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to gear column technical field, especially relate to a driven gear column. BACKGROUND

[0002] Cylindrical gear is an important gear type among mechanical gears, and is the most common gear style, when the gear mechanism of cylindrical gear is engaged and driven, there is a large tangential relative sliding speed along the tooth length direction, so that a large rate of wear and tear is generated, and the existing gear column needs to be replaced as a whole when the tooth surface is worn, which increases the use cost, and therefore we specially design a driven gear column. CONTENT OF UTILITY MODEL

[0003] The utility model aims at the above-mentioned technical problem, and provides a driven gear column, which achieves the effect of reducing maintenance cost.

[0004] Therefore, the utility model provides a driven gear column, which comprises:

[0005] A mandrel;

[0006] A tooth profile structure movably arranged on the outer sidewall surface of the mandrel.

[0007] In the above technical scheme, further, the tooth profile structure comprises:

[0008] A body, an arc-shaped matching surface is arranged on the inner side of the body, and a tooth profile surface is arranged on the outer side of the body;

[0009] A connecting frame body is arranged on the arc-shaped matching surface and on both sides of the body, the connecting frame body is provided with a first fixing hole, and the mandrel is provided with a second fixing hole corresponding to the first fixing hole;

[0010] A fixed plate is provided with a connecting protrusion, the connecting protrusion is sequentially connected with the first fixing hole and the second fixing hole, and the connecting protrusion is tightly connected with the first fixing hole and the second fixing hole.

[0011] In the above technical scheme, further, the utility model also comprises:

[0012] A fixed shaft penetrates the mandrel and the fixed plate and is connected with a locking bolt;

[0013] The mandrel is provided with a first shaft hole, and the fixed plate is provided with a second shaft hole and is matched with the fixed shaft.

[0014] In the above technical scheme, further, the utility model also comprises:

[0015] A boss is arranged at both ends of the mandrel, the end face of the boss is flush with the outer end face of the connecting frame body, and the first shaft hole is arranged on the boss;

[0016] The arc-shaped notch is arranged on the outer sidewall of the boss corresponding to the connecting frame body.

[0017] In the above technical solution, further comprising:

[0018] The positioning protrusion is arranged on the arc-shaped matching surface, and the outer sidewall of the mandrel is correspondingly provided with a positioning groove.

[0019] In the above technical solution, further comprising:

[0020] The anti-loosening structure comprises a first locking protrusion and a second locking protrusion, the first locking protrusion is arranged on the end surface of the fixed plate 23 outside the second shaft hole, and the second locking protrusion is arranged on the side of the fixed plate that is attached to the locking bolt.

[0021] The first locking protrusion and the second locking protrusion are both wedge-shaped, and the wedge-shaped directions of the first locking protrusion and the second locking protrusion are opposite to each other.

[0022] In the above technical solution, further comprising:

[0023] The protective pad is arranged between the arc-shaped matching surface and the matching surface of the mandrel.

[0024] In the above technical solution, further comprising:

[0025] The protective cover is connected to the opening structure formed by the extension of the two ends of the body to the outside of the connecting frame body.

[0026] The beneficial effects of the present application are that the tooth-shaped structure can be replaced and maintained after wear, and the mandrel can be continuously used, thereby helping to reduce the use cost. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a structural schematic diagram of the present application;

[0028] Figure 2 is an exploded view of the structure of the present application;

[0029] Figure 3 is a structural schematic diagram of the mandrel of the present application;

[0030] The marks in the figure are indicated as: 1, mandrel; 11, second fixing hole; 12, first shaft hole; 21, body; 211, arc-shaped matching surface; 212, tooth-shaped surface; 22, connecting frame body; 221, first fixing hole; 23, fixed plate; 231, connecting protrusion; 232, second shaft hole; 3, fixed shaft; 4, locking bolt; 5, boss; 6, arc-shaped notch; 7, positioning protrusion; 8, positioning groove; 91, first locking protrusion; 92, second locking protrusion; 10, protective pad; 13, protective cover. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art belong to the scope of protection of the present application.

[0032] Embodiment 1:

[0033] The embodiment provides a driven gear column, which comprises:

[0034] The mandrel 1;

[0035] The tooth-shaped structure is movably arranged on the outer side wall surface of the mandrel 1.

[0036] It can be seen from the embodiment that the driven gear column comprises the mandrel 1 and the tooth-shaped structure;

[0037] The tooth-shaped structure is detachably mounted on the outer side of the mandrel 1. Through the detachable tooth-shaped structure, the tooth-shaped structure can be replaced and maintained after being worn in use, and the mandrel 1 can continue to be used, thereby helping to reduce the use cost.

[0038] Embodiment 2:

[0039] The embodiment provides a driven gear column, which comprises:

[0040] The tooth-shaped structure comprises:

[0041] The body 21, the inner side of the body 21 is provided with the arc-shaped matching surface 211, and the outer side of the body 21 is provided with the tooth-shaped surface 212;

[0042] The connecting frame body 22 is arranged on the arc-shaped matching surface 211 and arranged on both sides of the body 21, the first fixing hole 221 is arranged on the connecting frame body 22, and the second fixing hole 11 is arranged on the mandrel 1 corresponding to the first fixing hole 221;

[0043] The fixed plate 23 is provided with a connecting protrusion 231, the connecting protrusion 231 is sequentially connected with the first fixed hole 221 and the second fixed hole 11, and the connecting protrusion 231 is tightly connected with the first fixed hole 221 and the second fixed hole 11.

[0044] It can be seen from the embodiment that the tooth-shaped structure comprises the body 21, the connecting frame body 22 and the fixed plate 23.

[0045] An arc-shaped matching surface 211 is formed on the inner side of the body 21, which is used for matching the mandrel 1 for assembly, and further, a tooth-shaped surface 212 is formed on the outer side wall surface of the body 21, which is used for matching.

[0046] The connecting frame body 22 is formed on the inner side wall surface of the arc-shaped matching surface 211 and is attached to the two sides of the body 21, the first connecting frame body 22 is provided with the first fixed hole 221, the mandrel 1 is correspondingly provided with the second fixed hole 11, and the first fixed hole 221 and the second fixed hole 11 are used for assembling the fixed plate 23.

[0047] The connecting protrusion 231 is formed on the end surface of the inner side of the fixed plate 23, and the connecting protrusion 231 is matched with the first fixed hole 221 and the second fixed hole 11 to fix the connecting frame body 22 on the mandrel 1.

[0048] The connecting mode between the connecting frame body 22 and the mandrel 1 is simple, which is helpful for maintenance and disassembly in the later period.

[0049] Embodiment 3

[0050] The embodiment provides a driven gear column, in addition to the technical solutions of the above-mentioned embodiments, further has the following technical features.

[0051] The fixed shaft 3 penetrates the mandrel 1 and the fixed plate 23 and is connected with the locking bolt 4.

[0052] The mandrel 1 is provided with the first shaft hole 12, and the fixed plate 23 is provided with the second shaft hole 232 and is matched with the fixed shaft 3.

[0053] It can be seen from the embodiment that the mandrel 1 is provided with the first shaft hole 12, the fixed plate 23 is provided with the second shaft hole 232, and the fixed shaft 3 penetrates the first shaft hole 12 and the second shaft hole 232 at both ends and is connected with the locking bolt 4.

[0054] The fixed shaft 3 can stably connect the fixed plate 23 on the mandrel 1 by matching with the locking bolt 4.

[0055] Embodiment 4

[0056] The embodiment provides a driven gear column, in addition to the technical solutions of the above-mentioned embodiments, further has the following technical features.

[0057] boss 5 is arranged on the core shaft 1, and the end face of the boss 5 is flush with the outer side end face of the connecting frame body 22, and the first shaft hole 12 is arranged on the boss 5;

[0058] Among them, the connecting frame body 22 is provided with an arc-shaped notch 6 corresponding to the boss 5, and the arc-shaped notch 6 is attached to the outer side wall surface of the boss 5.

[0059] It can be seen from the embodiment that by arranging the boss 5 at both ends of the core shaft 1 and arranging the corresponding arc-shaped notch 6 on the connecting frame body 22, the connecting frame body 22 can be smoothly matched on the core shaft 1 without contacting the fixed shaft 3, which helps to improve the service life of the tooth profile structure.

[0060] Embodiment 5:

[0061] The embodiment provides a driven gear column, which has the following technical features in addition to the technical solutions of the above-mentioned embodiments.

[0062] The positioning protrusion 7 is arranged on the arc-shaped matching surface 211, and the outer side wall surface of the core shaft 1 is correspondingly provided with a positioning groove 8.

[0063] It can be seen from the embodiment that the positioning protrusion 7 is formed on the arc-shaped matching surface 211, and the outer side wall surface of the core shaft 1 is correspondingly formed with the positioning groove 8.

[0064] In use, the plurality of tooth profile structures are preliminarily assembled to the core shaft 1 after being matched with the positioning protrusion 7 and the positioning groove 8, and the first fixing hole 221 and the second fixing hole can be positioned, thereby facilitating assembly.

[0065] Embodiment 6:

[0066] The embodiment provides a driven gear column, which has the following technical features in addition to the technical solutions of the above-mentioned embodiments.

[0067] The anti-loose structure includes a first locking protrusion 91 and a second locking protrusion 92, the first locking protrusion 91 is arranged on the end face of the fixed plate 23 outside the second shaft hole 232, and the second locking protrusion 92 is arranged on the side of the locking bolt 4 and the fixed plate 23.

[0068] Among them, the first locking protrusion 91 and the second locking protrusion 92 are both wedge-shaped, and the wedge-shaped directions of the first locking protrusion 91 and the second locking protrusion 92 are opposite to each other.

[0069] The embodiment can be seen that by setting the first locking protrusion 91 on the end surface of the fixing plate 23 outside the second shaft hole 232, and setting the second locking protrusion 92 on the side of the locking bolt 4 matched with the fixing plate 23, the bolt can be limited and matched by using the wedge-shaped direction opposite to the first locking protrusion 91 and the second locking protrusion 92 after being connected with the fixing shaft 3, and the purpose of preventing loosening is achieved.

[0070] Embodiment 7:

[0071] The embodiment provides a driven gear column, in addition to comprising the technical scheme of the above embodiment, further has the following technical features.

[0072] The protective pad 10 is arranged between the arc-shaped matching surface 211 and the matching surface of the mandrel 1.

[0073] The embodiment can be seen that by setting the first locking protrusion 91 on the end surface of the fixing plate 23 outside the second shaft hole 232, and setting the second locking protrusion 92 on the side of the locking bolt 4 matched with the fixing plate 23, the bolt can be limited and matched by using the wedge-shaped direction opposite to the first locking protrusion 91 and the second locking protrusion 92 after being connected with the fixing shaft 3, and the purpose of preventing loosening is achieved.

[0074] Embodiment 8:

[0075] The embodiment provides a driven gear column, in addition to comprising the technical scheme of the above embodiment, further has the following technical features.

[0076] The protective cover 13 is connected to the opening structure formed by extending the two ends of the body 21 to the outside of the connecting frame body 22.

[0077] The embodiment can be seen that by setting the first locking protrusion 91 on the end surface of the fixing plate 23 outside the second shaft hole 232, and setting the second locking protrusion 92 on the side of the locking bolt 4 matched with the fixing plate 23, the bolt can be limited and matched by using the wedge-shaped direction opposite to the first locking protrusion 91 and the second locking protrusion 92 after being connected with the fixing shaft 3, and the purpose of preventing loosening is achieved.

[0078] The embodiments of the application are described above in combination with the drawings, and the embodiments and the features in the embodiments in the application can be combined with each other without conflict, the application is not limited to the above specific embodiments, the above specific embodiments are only illustrative, not restrictive, and those skilled in the art can make many forms under the inspiration of the application without departing from the purpose of the application and the scope protected by the claims, all of which belong to the protection of the application.

Claims

1. A driven gear post, characterized in that, It includes: A mandrel (1); A toothed structure movably arranged on the outer wall surface of the mandrel (1); Wherein, the toothed structure includes: A body (21), the inner side of which is provided with an arc-shaped matching surface (211), and the outer side of which is provided with a toothed surface (212); A connecting frame body (22) arranged on the arc-shaped matching surface (211) and on both sides of the body (21), the connecting frame body (22) is provided with a first fixing hole (221), and the mandrel (1) is provided with a second fixing hole (11) corresponding to the first fixing hole (221); A fixed plate (23) provided with a connecting protrusion (231), the connecting protrusion (231) sequentially connects the first fixing hole (221) and the second fixing hole (11), and the connecting protrusion (231) is tightly connected with the first fixing hole (221) and the second fixing hole (11).

2. A driven pinion post according to claim 1 further characterized by It includes: A fixed shaft (3) penetrating through the mandrel (1) and the fixed plate (23) and connected with a locking bolt (4); Wherein, the mandrel (1) is provided with a first shaft hole (12), and the fixed plate (23) is provided with a second shaft hole (232) and matched with the fixed shaft (3).

3. A driven pinion post according to claim 2, further characterized by It includes: A boss (5) arranged at both ends of the mandrel (1), and the end surface of the boss (5) is flush with the outer end surface of the connecting frame body (22), and the first shaft hole (12) is arranged on the boss (5); Wherein, the connecting frame body (22) is provided with an arc-shaped notch (6) corresponding to the boss (5), and the arc-shaped notch (6) is attached to the outer wall surface of the boss (5).

4. A driven pinion post according to claim 3, further characterized by It includes: A positioning protrusion (7) arranged on the arc-shaped matching surface (211), and the outer wall surface of the mandrel (1) is correspondingly provided with a positioning groove (8).

5. A driven pinion post according to claim 4, further characterized by It includes: An anti-loosening structure including a first locking protrusion (91) and a second locking protrusion (92), the first locking protrusion (91) is arranged on the end surface of the fixed plate (23) outside the second shaft hole (232), and the second locking protrusion (92) is arranged on one side of the locking bolt (4) and the fixed plate (23); wherein, the first locking protrusion (91) and the second locking protrusion (92) are both wedge-shaped, and the wedge-shaped direction between the first locking protrusion (91) and the second locking protrusion (92) is opposite.

6. A driven pinion post according to claim 5, further characterized by It includes: A protective pad (10) arranged between the arc-shaped matching surface (211) and the matching surface of the mandrel (1).

7. A driven pinion post according to claim 6 further characterised by It includes: A protective cover (13), both ends of the body (21) extend to the outside of the connecting frame body (22) to form an opening structure, and the protective cover (13) is connected to the opening structure.

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