Gear hobbing mechanism of slewing bearing

Abstract

The utility model discloses a gear hobbing mechanism for a slewing bearing, and belongs to the technical field of slewing bearing machining. A slewing bearing gear hobbing mechanism comprises a crankshaft shell and a hobbing cutter, a shaft disc is arranged on one side of the crankshaft shell, the shaft disc is connected with the crankshaft shell through a flange, a driving toothed bar is arranged in the shaft disc and rotationally connected with the shaft disc, a linkage toothed bar is arranged in the crankshaft shell, and the linkage toothed bar is rotationally connected with the shaft disc. And the linkage toothed bar is engaged with the driving toothed bar to rotate. In order to solve the problems that an existing slewing bearing has an extremely high requirement for precision during gear hobbing, a traditional gear hobbing machine can be paused due to inertia influence during stalling, and consequently tooth marks are abraded, rotation operation of a lead screw is achieved through a locking gear, the lead screw can move towards the interior of an adapter sleeve rod during rotation, and the rotation of the lead screw is not influenced. And after the transfer loop bar moves, the linkage toothed bar is separated from the driving toothed bar, so that the hobbing cutter stops rotating, and the inertia influence generated by the stopping of the motor is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a slewing bearing machining technical field, concretely is a kind of slewing bearing hobbing mechanism. BACKGROUND

[0002] Gear hobbing machine is the most widely used machine tool in gear machining machine tool, straight teeth, helical gear can be cut on gear hobbing machine, worm wheel, sprocket and so on, gear hobbing machine is used to process straight teeth, helical and herringbone cylindrical gear and worm wheel according to the generation method.

[0003] The existing slewing bearing has very high requirement for precision when carrying out hobbing machining, and the traditional gear hobbing machine will be affected by inertia when stopping, so that the tooth mark will be worn out. SUMMARY

[0004] The utility model discloses a slewing bearing hobbing mechanism, the rotation operation of screw rod is realized by locking gear, and the screw rod will move to the inside of adapter sleeve rod when rotating, the driving gear rod is separated from the linkage gear rod after the movement of adapter sleeve rod, so that the stopping of hobbing cutter is realized, the inertia influence generated by motor stopping is reduced, and the problems in the prior art can be solved.

[0005] To achieve the above object, the utility model provides the following technical scheme: a slewing bearing hobbing mechanism, including machine shaft casing and hobbing cutter, the side of machine shaft casing is provided with shaft disc, and the shaft disc is connected with machine shaft casing through flange, the inside of shaft disc is provided with driving gear rod, and the driving gear rod is rotatably connected with shaft disc, the inside of machine shaft casing is provided with linkage gear rod, and the linkage gear rod is rotatably engaged with driving gear rod.

[0006] Further, the one end of linkage gear rod is provided with adapter sleeve rod, and the adapter sleeve rod is provided as an integral structure with linkage gear rod, wherein the one end of adapter sleeve rod is provided with screw rod.

[0007] Further, the screw rod is connected with adapter sleeve rod through internal thread, and the ball bearing is arranged between screw rod and adapter sleeve rod.

[0008] Further, the one end of screw rod is provided with locking gear, and the locking gear extends to the outside of machine shaft casing, wherein the locking gear is rotatably connected with machine shaft casing.

[0009] Further, the one end of hobbing cutter is provided with support hanging shaft, the other end of hobbing cutter is provided with lock sleeve, the outside of inner connecting shaft is provided with driven gear shaft, and the driven gear shaft is rotatably connected with adapter sleeve rod.

[0010] Further, the inside of hobbing cutter is provided with inner connecting shaft, and the hobbing cutter is rotatably connected with support hanging shaft through inner connecting shaft, wherein the driven gear shaft is rotatably connected with machine shaft casing.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] The utility model discloses, locking gear can drive rotation independently, the rotation operation of the screw rod is realized through locking gear, and the screw rod moves to the inside of the adapter sleeve when rotating, and moves the adapter sleeve to one side after reaching the limit, and the linkage tooth bar will be separated from the driving tooth bar after the adapter sleeve moves, thereby realizing the stop of the hob, reducing the inertia influence generated by the motor stop, which can avoid the extrusion and abrasion of the hob and the tooth groove surface of the slewing bearing under the influence of inertia. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is the overall front view of the utility model;

[0014] Fig. 2 It is the overall side view of the utility model;

[0015] Fig. 3 It is the overall cross section structure schematic view of the utility model.

[0016] In the drawing: 1, machine shaft shell;2, hob;3, locking gear;101, axle disc;102, driving tooth bar;103, linkage tooth bar;1031, adapter sleeve;201, support hanging shaft;202, driven gear shaft;203, lock sleeve;204, inner connecting shaft;301, screw rod. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0018] In order to solve the problem that the existing slewing bearing has extremely high requirements for precision when hobbing, and the traditional hobbing machine will appear to be affected by inertia when stopping, thereby causing the abrasion of tooth marks, please refer to Figs. 1-3 The utility model provides the following scheme:

[0019] The application discloses a slewing bearing hobbing mechanism which comprises a machine shaft shell 1 and a hobbing cutter 2, the machine shaft shell 1 is provided with an axle disc 101 on one side, the axle disc 101 is connected with the machine shaft shell 1 through a flange, the inside of the axle disc 101 is provided with a driving gear rod 102, the driving gear rod 102 is rotationally connected with the axle disc 101, the inside of the machine shaft shell 1 is provided with a linkage gear rod 103, the linkage gear rod 103 is rotationally meshed with the driving gear rod 102, the driving gear rod 102 is connected with a motor device, the linkage gear rod 103 is driven to rotate through the driving gear rod 102, the hobbing cutter 2 is driven to rotate through the linkage gear rod 103, and thus the slewing bearing is subjected to hobbing machining.

[0020] One end of the linkage gear rod 103 is provided with an adapter sleeve rod 1031, the adapter sleeve rod 1031 is provided in an integral structure with the linkage gear rod 103, one end of the adapter sleeve rod 1031 is provided with a screw rod 301, the screw rod 301 is connected with the adapter sleeve rod 1031 through internal threads, the screw rod 301 is provided between the adapter sleeve rod 1031 and the linkage gear rod 103 with a ball bearing, one end of the screw rod 301 is provided with a locking gear 3, the locking gear 3 extends to the outside of the machine shaft shell 1, the locking gear 3 is rotationally connected with the machine shaft shell 1, the locking gear 3 can be independently driven to rotate, the rotation of the screw rod 301 is realized through the locking gear 3, when the screw rod 301 rotates, the screw rod 301 moves to the inside of the adapter sleeve rod 1031, and after reaching a limit, the adapter sleeve rod 1031 moves to one side, the linkage gear rod 103 is separated from the driving gear rod 102 after the adapter sleeve rod 1031 moves, so that the rotation of the hobbing cutter 2 is stopped, the inertial influence generated by the motor is reduced, the extrusion and abrasion of the hobbing cutter 2 and the tooth groove of the slewing bearing surface under the influence of inertia can be avoided, and the linkage gear rod 103 and the driving gear rod 102 can be pulled together again when the screw rod 301 rotates in the opposite direction.

[0021] One end of the hobbing cutter 2 is provided with a supporting hanging shaft 201, the other end of the hobbing cutter 2 is provided with a locking sleeve 203, the outside of an inner connecting shaft 204 is provided with a driven gear shaft 202, the driven gear shaft 202 is meshed and connected with the adapter sleeve rod 1031, the inside of the hobbing cutter 2 is provided with the inner connecting shaft 204, the hobbing cutter 2 is rotationally connected with the supporting hanging shaft 201 through the inner connecting shaft 204, the driven gear shaft 202 is rotationally connected with the machine shaft shell 1, the driven gear shaft 202 is driven to rotate through the adapter sleeve rod 1031 at one end of the linkage gear rod 103, and thus the rotation of the hobbing cutter 2 is realized.

[0022] Working principle, the driving gear rod 102 is connected with a motor device, the linkage gear rod 103 is driven to rotate through the driving gear rod 102, the driven gear shaft 202 is driven to rotate through the adapter sleeve rod 1031 at one end of the linkage gear rod 103, and thus the rotation of the hobbing cutter 2 is realized.

[0023] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0024] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A slewing bearing gear hobbing mechanism, characterized in that, The machine includes a shaft housing (1) and a hob (2). A shaft disc (101) is provided on one side of the shaft housing (1). The shaft disc (101) is connected to the shaft housing (1) through a flange. A drive rack (102) is provided inside the shaft disc (101). The drive rack (102) is rotatably connected to the shaft disc (101). A linkage rack (103) is provided inside the shaft housing (1). The linkage rack (103) meshes with the drive rack (102) and rotates.

2. The slewing bearing gear hobbing mechanism according to claim 1, characterized in that: One end of the linkage rack (103) is provided with an adapter sleeve (1031), and the adapter sleeve (1031) and the linkage rack (103) are configured as an integral structure, wherein one end of the adapter sleeve (1031) is provided with a lead screw (301).

3. The slewing bearing gear hobbing mechanism according to claim 2, characterized in that: The lead screw (301) and the adapter sleeve (1031) are connected by an internal thread, and ball bearings are provided between the lead screw (301) and the adapter sleeve (1031).

4. The slewing bearing gear hobbing mechanism according to claim 3, characterized in that: One end of the lead screw (301) is provided with a locking gear (3), which extends to the outside of the shaft housing (1) and is rotatably connected to the shaft housing (1).

5. A slewing bearing gear hobbing mechanism according to claim 1, characterized in that: One end of the hob (2) is provided with a support shaft (201), and the other end of the hob (2) is provided with a locking sleeve (203).

6. A slewing bearing gear hobbing mechanism according to claim 5, characterized in that: The hob (2) has an internal coupling (204) inside, and a driven gear shaft (202) is provided on the outside of the internal coupling (204). The driven gear shaft (202) is meshed with the adapter sleeve (1031). The hob (2) is rotatably connected to the support hanger shaft (201) through the internal coupling (204). The driven gear shaft (202) is rotatably connected to the machine shaft housing (1).

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