Novel rolling shaft tooth

Abstract

The utility model discloses a novel rolling shaft gear, which belongs to the technical field of gear transmission, and comprises a gear hobbing frame, gear hobbing, a rolling shaft and gear hobbing shaft brackets, the left end face and the right end face of the gear hobbing frame are symmetrically provided with a first shaft bracket and a second shaft bracket respectively; rolling shafts are arranged between the gear teeth in the first shaft bracket and the gear teeth in the second shaft bracket in a one-to-one correspondence manner; hobbing teeth are sleeved on a shaft rod of the rolling shaft. The rolling shaft gear is simple in structure, gear teeth on a transmission gear are replaced by the rotatable rolling teeth arranged on the rolling tooth frame for meshing transmission, so that the driving gear teeth and the driven gear teeth do not need to be in direct contact, the resistance of friction between the teeth is reduced, smooth operation between the rolling shaft gear and the adjacent shaft gear is achieved, and the service life of the rolling shaft gear is prolonged. The problem that in the long-term transmission process, large friction resistance is generated due to direct contact between tooth surfaces of a conventional gear transmission assembly is solved, the service life of a gear is prolonged, and the stability and reliability of mechanical equipment operation are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to gear drive technical field, concretely is a novel roller gear. BACKGROUND

[0002] Gear drive is a kind of mechanical transmission mode that relies on gear intermeshing to transmit motion and power;And gear is the mechanical element that there is continuous meshing transmission motion and power on wheel rim tooth.But, the tooth of main gear and the tooth of driven gear are directly contacted in the long-term transmission process of conventional gear, and there is relatively large frictional resistance between tooth surface, which not only consumes a large amount of energy, but also leads to gear wear aggravation, shortens the service life of gear;At the same time, the contact between tooth and tooth is not smooth enough, and vibration and impact are also easily generated in the transmission process, which affects the stability of machine operation. SUMMARY

[0003] In view of the above-mentioned problems existing in the prior art, the utility model aims at providing a novel roller gear to solve the problems in the background art.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme:

[0005] The utility model provides a novel roller gear, including hob holder, hob, roller and hob shaft frame, one hob shaft frame is symmetrically arranged on the left end face and the right end face of hob holder respectively, and is respectively first axle frame, second axle frame;The tooth in the first axle frame is one to one corresponding between the tooth in the second axle frame, and a roller is arranged between them;The hob is sleeved on the shaft rod of the roller, and a roller gear applied in transmission process is formed, the application of the hob with rotation function makes the operation between tooth and tooth smooth, and the frictional resistance is greatly reduced, and the utilization of useful work is effectively improved.

[0006] Preferably, the tooth in the hob shaft frame and the tooth in the hob holder are cross arranged, so as to facilitate the installation of the hob in the tooth groove in the hob holder.

[0007] Preferably, the first axle frame is integrally formed on the left end face of the hob holder;The second axle frame is uniformly provided with through holes corresponding to the screw holes of the right end of the hob holder;The right end face of the second axle frame and the hob holder is connected through screw.

[0008] Preferably, the roller is integrally formed by shaft rod and plug rod, and the both ends of the shaft rod are symmetrically provided with one plug rod matched with the plug hole in the hob shaft frame, for facilitating the installation of the roller;The length of the shaft rod is equal to the thickness of the hob holder;The length of the plug rod is less than or equal to the thickness of the hob shaft frame.

[0009] Preferably, the hob is provided with an oil guide groove for adding lubricating oil to make the hob run more smoothly, and the inner diameter of the hob is slightly larger than the diameter of the shaft rod of the roller shaft so as to facilitate the rotation of the hob on the roller shaft.

[0010] Preferably, the insertion hole in the hob shaft support is concentric with the tooth groove in the hob support, and the radius of the hob is larger than the distance from the tooth top to the center of the insertion hole in the hob shaft support so as to facilitate the hob to form the gear teeth of the roller shaft tooth.

[0011] The novel roller shaft tooth has the advantages that: the structure is simple, the rotating hob provided on the hob support is used to replace the gear teeth on the transmission gear to achieve meshing transmission, the direct contact between the driving gear teeth and the driven gear teeth is avoided, the friction resistance between the teeth is reduced, the smooth rotation between the roller shaft tooth and the adjacent tooth is achieved, the problem of large friction resistance caused by the direct contact between the teeth of the conventional gear transmission assembly in the long-term transmission process is solved, the service life of the gear is prolonged, the stability and reliability of the mechanical equipment operation are improved, and the specific advantages are as follows:

[0012] (1) The rotating hob provided with the rotating function of the hob shaft is used for meshing with the hob to achieve transmission when the roller shaft tooth is used for transmission, which reduces the friction resistance between the conventional teeth and effectively reduces the energy loss in the machine operation process, improves the utilization rate of useful work, and reduces energy consumption.

[0013] (2) In the transmission process, the hob rotates on the hob support under the action of external force, which makes the driving roller shaft tooth and the driven roller shaft tooth rotate smoothly, reduces the operation vibration of the machine, improves the stability and reliability of the equipment operation, prolongs the service life of the equipment, and reduces the maintenance cost. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the embodiment or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0015] Figure 1 Part of the structure of the novel roller shaft tooth provided in the embodiment of the present application is shown in the schematic diagram of the explosion;

[0016] Figure 2 The schematic diagram of the roller shaft tooth after removing the second shaft support;

[0017] Figure 3 isFigure 2 Main view showing the changed state after removing the rollers and gears;

[0018] Figure 4 for Figure 3 The right view;

[0019] Figure 5 This is a schematic diagram of the second shaft frame;

[0020] Figure 6 This is a reference diagram showing the usage state of a portion of the structure that uses this roller tooth for meshing transmission.

[0021] Explanation of reference numerals in the attached diagram: 1. Gear hobbing frame; 2. Gear hobbing; 3. Roller; 4. Gear hobbing shaft frame; 5. Screw; 6. Insertion hole; 7. Oil guide groove;

[0022] 301. Shaft; 302. Insert rod;

[0023] 401, First shaft bracket; 402, Second shaft bracket. 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] Example 1, as Figures 1 to 6 As shown, a novel roller gear includes a gear hobbing frame 1, a gear hobbing 2, a roller 3, and a gear hobbing shaft support 4. A gear hobbing shaft support 4 is symmetrically arranged on the left and right end faces of the gear hobbing frame 1, namely a first shaft support 401 and a second shaft support 402. A roller 3 is arranged between the teeth in the first shaft support 401 and the teeth in the second shaft support 402. The gear hobbing 2 is fitted onto the shaft 301 of the roller 3, forming a roller gear used in the transmission process. Through the application of the rotating gear hobbing 2, the operation between the teeth is smooth while greatly reducing frictional resistance, effectively improving the utilization of useful work.

[0026] Furthermore, such as Figure 1 and Figure 2 As shown, the gear teeth in the gear hobbing shaft holder 4 are arranged crosswise with the gear teeth in the gear hobbing holder 1, so that the gear hobbing 2 can be installed in the tooth groove in the gear hobbing holder.

[0027] Furthermore, such as Figure 1 and Figure 3As shown in the figure, the first axle stand 401 is integrally formed on the left end face of the hobbing rack 1, for increasing the strength of the first axle stand; as shown in the figure, Figure 1 and Figure 5 As shown in the figure, the second axle stand 402 is uniformly provided with through holes corresponding to the screw holes on the right end of the hobbing rack 1, for facilitating screw installation; as shown in the figure, Figure 6 As shown in the figure, the second axle stand 402 is connected with the right end face of the hobbing rack 1 through a screw.

[0028] Further, as shown in the figure, Figure 1 The roller shaft 3 is integrally formed by an axle rod 301 and a plug rod 302, and the axle rod 301 is symmetrically provided with a plug rod 302 at each end, which is matched with the plug hole 6 in the hobbing axle stand 4, for facilitating installation of the roller shaft 3; the length of the axle rod 301 is equal to the thickness of the hobbing rack 1; the length of the plug rod 302 is less than or equal to the thickness of the hobbing axle stand 3.

[0029] Further, as shown in the figure, Figure 1 The hobbing gear 2 is provided with an oil guide groove 7, for adding lubricating oil, so that the hobbing gear runs more smoothly; the inner diameter of the hobbing gear 2 is slightly larger than the diameter of the axle rod 301 in the roller shaft 3, so as to facilitate rotation of the hobbing gear on the roller shaft.

[0030] Further, as shown in the figure, Figure 4 The plug hole 6 in the hobbing axle stand 3 is concentric with the gear slot in the hobbing rack 1; as shown in the figure, Figure 1 The radius of the hobbing gear 2 is greater than the distance from the addendum in the hobbing axle stand 3 to the center of the plug hole 6, so as to facilitate the hobbing gear 2 to form the gear teeth of the roller shaft in the application.

[0031] Working principle: as shown in the figure, Figure 6 When the main roller shaft gear and the driven roller shaft gear are combined to run and transmit power, the hobbing gear I in the main roller shaft gear and the hobbing gear II in the driven roller shaft gear are in contact, at this time each hobbing gear rotates on the corresponding hobbing rack with the roller shaft installed inside as the center, so as to reduce the frictional resistance, and at the same time the force of the hobbing gear II is transmitted to the driven hobbing rack through rotation and oil lubrication, to realize power transmission.

[0032] Installation method: the hobbing gear 2 is sleeved on the roller shaft in advance; then, the one end of the roller shaft is connected to the first axle stand 401 through a key (this process is repeated multiple times until the plug holes in the first axle stand are all provided with roller shaft and hobbing gear assemblies); then, the plug holes in the second axle stand 402 are aligned with the other end of the roller shaft 3 one by one, and are buckled on the other end face of the hobbing rack; finally, the second axle stand 402 is stably installed on the hobbing rack through a screw, to complete the installation.

[0033] In addition, it should be noted that, in the production, the gap between the hob and the hob rack is properly matched (the diameter of the hob is smaller or slightly smaller than the diameter of the tooth groove in the hob rack); and the roller shaft tooth in the application needs to be provided with a hub in the center of the hob rack 1 for assembling the rotating shaft.

[0034] In addition, in other embodiments, it should be noted that:

[0035] (1) According to the actual use needs, the length of the hob can be appropriately increased (a plurality of short hobs) according to the size of the hob action, for increasing the contact area of the hob and the hob; it should be noted that the length of the hob is increased, and the length of the roller shaft and the thickness of the hob rack are increased accordingly (the length of the hob is smaller than the thickness of the hob rack to avoid interference fit), and the plurality of short hobs can easily increase the lubrication of the hob, which will not be described in detail herein.

[0036] (2) According to the actual use needs, the ratio between the hob and the hob shaft can be adjusted adaptively according to the size of the roller shaft tooth transmission force (when the hob rotates in the tooth groove in the hob rack, the tooth groove in the hob rack is the main stress point, and the roller shaft rotates around the roller shaft, and the stress of the roller shaft is smaller than that of the tooth groove in the hob rack), which will not be described in detail herein.

[0037] Obviously, the above-described embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application. Thus, if the modifications and variations of the present application are within the scope of the claims of the present application and the equivalent technology, the present application also intends to include these changes and variations.

Claims

1. A novel roller tooth, characterized in that: The device includes a gear hobbing frame (1), a gear hobbing (2), a roller (3), and a gear hobbing shaft frame (4). The gear hobbing frame (1) has a gear hobbing shaft frame (4) symmetrically arranged on its left and right end faces, which are respectively a first shaft frame (401) and a second shaft frame (402). A roller (3) is arranged between the gear teeth in the first shaft frame (401) and the gear teeth in the second shaft frame (402). The gear hobbing (2) is sleeved on the shaft (301) of the roller (3) to form a roller tooth used in the transmission process.

2. The novel roller tooth as described in claim 1, characterized in that: The gear teeth in the gear hobbing shaft holder (4) are arranged in a cross configuration with the gear teeth in the gear hobbing holder (1).

3. The novel roller tooth as described in claim 1, characterized in that: The first shaft bracket (401) is integrally formed on the left end face of the gear hobbing bracket (1); the second shaft bracket (402) has through holes that correspond to the screw holes on the right end of the gear hobbing bracket (1); the second shaft bracket (402) is connected to the right end face of the gear hobbing bracket (1) by screws (5).

4. The novel roller tooth as described in claim 1, characterized in that: The roller (3) is integrally formed by a shaft (301) and a insert (302), and the two ends of the shaft (301) are respectively provided with an insert (302) that cooperates with the insertion hole (6) in the gear hobbing frame (4); the length of the shaft (301) is equal to the thickness of the gear hobbing frame (1); the length of the insert (302) is less than or equal to the thickness of the gear hobbing frame (4).

5. A novel roller tooth as described in claim 1, characterized in that: The hobbing gear (2) is provided with an oil guide groove (7); the inner diameter of the hobbing gear (2) is slightly larger than the diameter of the shaft (301) in the roller (3).

6. A novel roller tooth as described in claim 1, characterized in that: The insertion hole (6) in the gear hobbing shaft holder (4) and the tooth groove in the gear hobbing shaft holder (1) are concentric circles; the radius of the gear hobbing (2) is greater than the distance from the tooth tip to the center of the insertion hole (6) in the gear hobbing shaft holder (4).

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