Power shifting gear

Abstract

The utility model belongs to the technical field of gear shifting gears, and particularly relates to a power gear shifting gear which comprises a gear body, connecting tooth grooves are formed in the inner wall of the gear body, connecting sealing sleeves are arranged on the two sides of the gear body, sealing grooves are formed in the inner sides of the connecting sealing sleeves, transmission toothed bars are arranged in the connecting tooth grooves, and the two ends of each transmission toothed bar are fixedly connected with connecting rods. The connecting tooth groove is formed in the inner wall of the gear body, the transmission tooth rod is arranged in the middle of the connecting rod and used in cooperation, the transmission tooth rod is movably connected with the connecting tooth groove in an inserted mode, in the working and using process, the transmission stability between the connecting rod and the gear body can be effectively improved, and the situation that slipping is likely to happen is prevented; the sealing fixing sleeve is arranged on the connecting rod, the sealing fixing sleeve and the connecting sealing sleeve are rotationally limited and fixed in a threaded mode through the sealing threaded groove, connection and installation between the gear body and the connecting rod can be conveniently limited, the installation and use stability is improved, and meanwhile the connection sealing performance of the gear can be further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of shifting gears, in particular to a power shifting gear. Background Art

[0002] The power shifting gear is a key component in the automotive transmission system, mainly used to achieve different transmission ratios to meet different driving requirements. In modern society, cars have become one of the preferred means of transportation for the public. Moreover, automatic cars occupy most of the private car market share. In an automatic car, the gear shift of the transmission needs to be realized by a special actuator. At the same time, the shift gearbox is applicable to metallurgical vertical roller series, straightening machine series, thin skin machine series, uncoiling, coiling, bar and wire, etc., and is also applied to industries such as petrochemical industry and hydraulic hoists; the shift gearbox has the characteristic of variable speed ratio, and its application space and advantages are larger than those of the constant speed ratio gearbox; from the current market situation, the demand for the function of realizing different speed ratio changes in the heavy machinery industry is large; therefore, the power shifting gear has a wide application prospect.

[0003] The prior art has the following deficiencies: The gear structure of a shift gearbox disclosed in the prior art with the publication number CN202123335689.8 includes a gear main body and an installation rod. An installation hole is provided on the gear main body, an installation groove is provided on the outer side of the gear main body, a tooth part is provided on the gear main body, anti-slip teeth are provided on the installation rod, a groove is provided in the installation hole, a fixing hole is provided on the tooth part, and a screw is provided in the fixing hole.

[0004] When the above shift gear is in use, although the groove and the anti-slip teeth are provided to prevent slipping between the gear and the installation rod, there is a lack of a good limiting mechanism between the gear and the installation rod during the working process, so that the gear is prone to slide and displace to both sides. At the same time, there is a lack of a good sealing structure between the gear and the installation rod, and it is easy for external water stains and dust to enter during the working process, affecting the working effect and making it inconvenient to work for a long time. Summary of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a power shifting gear to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A power shifting gear includes a gear main body. A connecting tooth groove is provided on the inner wall of the gear main body. Connecting sealing sleeves are provided on both sides of the gear main body. A sealing groove is provided on the inner side of the connecting sealing sleeve. A transmission tooth rod is provided inside the connecting tooth groove. Connecting rods are fixedly connected to both ends of the transmission tooth rod. A sealing ring is provided on the outside of the connecting rod. A sealing fixing sleeve is provided on the outside of the connecting rod. A sealing thread groove is provided on the inner wall of the sealing fixing sleeve.

[0007] As a preferred technical solution of the present utility model, the gear body includes a wear-resistant and corrosion-resistant layer, a temperature-resistant layer, an anti-extrusion layer, a strengthening layer and reinforcing ribs. The outer wall of the gear body is provided with a wear-resistant and corrosion-resistant layer. One side of the wear-resistant and corrosion-resistant layer is provided with a temperature-resistant layer. One side of the temperature-resistant layer is provided with an anti-extrusion layer. One side of the anti-extrusion layer is provided with a strengthening layer. Reinforcing ribs are arranged inside the anti-extrusion layer. The wear-resistant and corrosion-resistant layer is made of chromium carbide material.

[0008] As a preferred technical solution of the present utility model, the temperature-resistant layer is arranged between the wear-resistant and corrosion-resistant layer and the anti-extrusion layer. The temperature-resistant layer is made of nickel-based alloy material. The strengthening layer is made of carbon steel material.

[0009] As a preferred technical solution of the present utility model, a plurality of reinforcing ribs are provided, and the reinforcing ribs are evenly and symmetrically distributed inside the anti-extrusion layer.

[0010] As a preferred technical solution of the present utility model, the inner diameter dimension of the connecting tooth groove is adapted to the outer diameter dimension of the transmission tooth rod, and the transmission tooth rod is movably inserted into the connecting tooth groove.

[0011] As a preferred technical solution of the present utility model, the outer diameter dimension of the sealing ring is adapted to the inner diameter dimension of the sealing groove, and the sealing ring is movably inserted into the sealing groove.

[0012] As a preferred technical solution of the present utility model, the inner diameter dimension of the sealing thread groove is adapted to the outer diameter dimension of the connecting sealing sleeve, and the sealing fixed sleeve is threadedly and rotationally limited and fixedly connected to the connecting sealing sleeve through the sealing thread groove.

[0013] Compared with the prior art, the present utility model provides a power shift gear, which has the following beneficial effects:

[0014] 1. For this power shift gear, by arranging a connecting tooth groove on the inner wall of the gear body and a transmission tooth rod in the middle part of the connecting rod for cooperative use, and the transmission tooth rod is movably inserted into the connecting tooth groove, the transmission stability between the connecting rod and the gear body can be effectively improved during the working process, and it is prevented from being prone to slipping. By arranging a wear-resistant and corrosion-resistant layer on the outside of the gear body, the wear-resistant and corrosion-resistant performance of its overall structure can be improved, and it is prevented from being easily worn, corroded and damaged. By arranging a high-temperature-resistant layer on one side of the wear-resistant and corrosion-resistant layer, its temperature-resistant performance can be improved, and it is prevented from being prone to generating high temperature during continuous shifting use, which may cause changes in its internal structure and affect the use effect. By arranging an anti-extrusion layer, a strengthening layer and reinforcing ribs for cooperative use, the strength of its internal structure can be effectively improved, and it is prevented from being easily deformed and damaged by strong external forces, so as to extend its working service life.

[0015] 2. For this power-shifting gear, by providing connection sealing sleeves on both sides of the gear body, with sealing grooves inside the connection sealing sleeves, and at the same time providing sealing rings on the connecting rod for cooperative use, the connection sealing performance between the connecting rod and the gear body can be improved. At the same time, a sealing fixing sleeve is provided on the connecting rod, and the sealing fixing sleeve is rotationally limited and fixed to the connection sealing sleeve through a sealing thread groove, which can facilitate the limiting of the connection and installation between the gear body and the connecting rod, improve the stability of installation and use, and at the same time further improve its connection sealing performance, preventing external dust or water stains from easily entering the interior and affecting the working use effect, and can effectively improve the practicality of its structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 is a schematic diagram of the gear body structure of the present utility model;

[0018] Figure 3 is a schematic diagram of the partial structure of the gear body of the present utility model;

[0019] Figure 4 is a schematic diagram of the connecting rod structure of the present utility model;

[0020] Figure 5 is a schematic diagram of the sealing fixing sleeve structure of the present utility model.

[0021] In the figure: 1. Gear body; 101. Wear-resistant and anticorrosive layer; 102. Temperature-resistant layer; 103. Anti-extrusion layer; 104. Reinforcing layer; 105. Reinforcing rib; 2. Connecting tooth groove; 3. Connection sealing sleeve; 4. Sealing groove; 5. Transmission tooth rod; 6. Connecting rod; 7. Sealing ring; 8. Sealing fixing sleeve; 9. Sealing thread groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1-5, in this implementation: A power shift gear includes a gear body 1. A connecting tooth groove 2 is provided on the inner wall of the gear body 1 to facilitate the connection of the transmission tooth rod 5. Connecting seal sleeves 3 are provided on both sides of the gear body 1 to facilitate the installation of the sealing component. A sealing groove 4 is provided inside the connecting seal sleeve 3 to facilitate the installation of the sealing ring 7. A transmission tooth rod 5 is provided inside the connecting tooth groove 2 to drive the gear body 1 to transmit power. Connecting rods 6 are fixedly connected to both ends of the transmission tooth rod 5 to facilitate installation and use. A sealing ring 7 is provided outside the connecting rod 6 to improve the connection sealing performance between the connecting rod 6 and the gear body 1. A sealing fixing sleeve 8 is provided outside the connecting rod 6 to facilitate connection with the connecting seal sleeve 3. A sealing thread groove 9 is provided on the inner wall of the sealing fixing sleeve 8 to facilitate threaded connection.

[0024] In this embodiment, the gear body 1 includes a wear-resistant and corrosion-resistant layer 101, a temperature-resistant layer 102, an anti-extrusion layer 103, a strengthening layer 104, and strengthening ribs 105. A wear-resistant and corrosion-resistant layer 101 is provided on the outer wall of the gear body 1. A temperature-resistant layer 102 is provided on one side of the wear-resistant and corrosion-resistant layer 101. An anti-extrusion layer 103 is provided on one side of the temperature-resistant layer 102. A strengthening layer 104 is provided on one side of the anti-extrusion layer 103. Strengthening ribs 105 are provided inside the anti-extrusion layer 103. The wear-resistant and corrosion-resistant layer 101 is made of chromium carbide material to improve its structural strength and prevent it from being easily damaged.

[0025] In this embodiment, the temperature-resistant layer 102 is provided between the wear-resistant and corrosion-resistant layer 101 and the anti-extrusion layer 103. The temperature-resistant layer 102 is made of nickel-based alloy material, and the strengthening layer 104 is made of carbon steel material to improve its temperature resistance and prevent the internal structure from being changed due to excessive temperature.

[0026] In this embodiment, a number of strengthening ribs 105 are provided, and the strengthening ribs 105 are evenly and symmetrically distributed inside the anti-extrusion layer 103 to improve its internal structural strength and facilitate better operation and use.

[0027] In this embodiment, the inner diameter dimension of the connecting tooth groove 2 is adapted to the outer diameter dimension of the transmission tooth rod 5, and the transmission tooth rod 5 is movably inserted into the connecting tooth groove 2 to facilitate limit connection and prevent slipping.

[0028] In this embodiment, the outer diameter dimension of the sealing ring 7 is adapted to the inner diameter dimension of the sealing groove 4, and the sealing ring 7 is movably inserted into the sealing groove 4 to improve the connection sealing performance and prevent dust or water stains from easily entering the interior.

[0029] In this embodiment, the inner diameter dimension of the sealing thread groove 9 is adapted to the outer diameter dimension of the connecting seal sleeve 3, and the sealing fixing sleeve 8 is threadedly rotated and limitedly fixedly connected to the connecting seal sleeve 3 through the sealing thread groove 9 to facilitate limit fixed connection and improve the installation stability between the connecting rod 6 and the gear body 1.

[0030] Working principle and usage process of the utility model: When the operator installs the gear body 1 and the connecting rod 6, by inserting one end of the connecting rod 6 into the internal connecting tooth groove 2 of the gear body 1, the driving tooth rod 5 in the middle part of the connecting rod 6 is inserted and clamped with the connecting tooth groove 2. Then, the sealing ring 7 is sleeved on the connecting rod 6 and butted and placed into the sealing groove 4. At the same time, the sealing fixing sleeve 8 is sleeved on the connecting rod 6, and the sealing fixing sleeve 8 is butted with the connecting sealing sleeve 3. Then, by rotating the sealing fixing sleeve 8, it is rotationally limited and fixed with the connecting sealing sleeve 3 by threads, so as to facilitate the quick connection and installation of the gear body 1 and the connecting rod 6 for use, and at the same time, the stability and sealing performance of the connection and installation for use can be improved.

[0031] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A power shift gear, comprising a gear body (1), characterized in that: The inner wall of the gear body (1) is provided with a connecting tooth groove (2), the two sides of the gear body (1) are provided with a connecting sealing sleeve (3), the inner side of the connecting sealing sleeve (3) is provided with a sealing groove (4), the inner side of the connecting tooth groove (2) is provided with a transmission gear rod (5), the two ends of the transmission gear rod (5) are fixedly connected with a connecting rod (6), the outer side of the connecting rod (6) is provided with a sealing ring (7), the outer side of the connecting rod (6) is provided with a sealing fixing sleeve (8), and the inner wall of the sealing fixing sleeve (8) is provided with a sealing thread groove (9).

2. A power shift gear according to claim 1, characterized in that: The gear body (1) comprises a wear-resistant and anti-corrosion layer (101), a heat-resistant layer (102), an anti-extrusion layer (103), a reinforcement layer (104) and reinforcement ribs (105); the outer wall of the gear body (1) is provided with a wear-resistant and anti-corrosion layer (101); one side of the wear-resistant and anti-corrosion layer (101) is provided with a heat-resistant layer (102); one side of the heat-resistant layer (102) is provided with an anti-extrusion layer (103); one side of the anti-extrusion layer (103) is provided with a reinforcement layer (104); reinforcement ribs (105) are provided inside the anti-extrusion layer (103); and the wear-resistant and anti-corrosion layer (101) is made of chromium carbide material.

3. A power shift gear according to claim 2, characterized in that: The temperature-resistant layer (102) is arranged between the wear-resistant and corrosion-resistant layer (101) and the anti-extrusion layer (103); the temperature-resistant layer (102) is made of a nickel-based alloy material; and the reinforcement layer (104) is made of a carbon steel material.

4. A power shift gear according to claim 2, characterized in that: A plurality of reinforcing ribs (105) are provided, and the reinforcing ribs (105) are evenly and symmetrically distributed inside the anti-extrusion layer (103).

5. The power shift gear according to claim 1, characterized in that: The inner diameter of the connecting tooth groove (2) is matched with the outer diameter of the transmission gear rod (5), and the transmission gear rod (5) is movably plugged into the connecting tooth groove (2).

6. A power shift gear according to claim 1, characterized in that: The outer diameter of the sealing ring (7) is matched to the inner diameter of the sealing groove (4), and the sealing ring (7) and the sealing groove (4) are movably plugged.

7. A power shift gear according to claim 1, characterized in that: The inner diameter of the sealing thread groove (9) is matched to the outer diameter of the connecting sealing sleeve (3), and the sealing fixing sleeve (8) is connected to the connecting sealing sleeve (3) by threaded rotation limiting fixation via the sealing thread groove (9).

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