Large turbine disc tenon and groove broaching machine main transmission device

Abstract

The present application relates to broaching technology field, specifically disclose a large turbine disk mortise broaching machine main transmission device, including the casing, the top of the casing is hinged with machine cover, the surface of the machine cover is provided with a notch, the both sides of the casing are provided with a strip-shaped mouth, the inner bottom wall of the casing is fixedly installed with the coaming, the inner side of the coaming is fixedly installed with the shell, the large turbine disk mortise broaching machine main transmission device, the displacement driving motor drives the rotation of the lead screw, the lead screw drives two lead screw sleeves to be synchronized to approach, the rack assembly, the driving assembly and the cleaning assembly will be folded by sliding sleeve on the slide bar, until the toothless end of the broach side surface is attached to the outside of the turbine disk, then the main transmission motor drives the driving helical gear to rotate, the driving helical gear drives the rack shell, the slide bar and the broach to slide in the guide rail shell, the side surface of the broach contacts the outside of the turbine disk to realize the broaching, so as to conveniently cut the purpose of the outer surface of the turbine disk.

Description

TECHNICAL FIELD

[0001] The present application relates to broaching machine technical field, especially to a large turbine disk mortise and tenon broaching machine main transmission device. BACKGROUND

[0002] The turbine disk is a key part of the aero-engine and gas turbine, and its material is high-temperature alloy, which has the material characteristics of high strength, high heat resistance and low heat transfer coefficient, and has high requirements on machining precision and surface performance.

[0003] The prior art discloses a high-stability driving device for numerical control broaching machine and a using method thereof, which comprises a base, a clamping mechanism and an auxiliary driving mechanism, a groove is formed in the upper surface of the base, an electric hydraulic cylinder is arranged on the right inner wall of the groove, one end of a hydraulic telescopic rod is slidably connected to the inner side wall of the electric hydraulic cylinder, the other end of the hydraulic telescopic rod is fixedly connected to the right outer wall of a sliding block, and the left outer wall of the sliding block is detachably connected with the clamping mechanism through bolts; the clamping mechanism is suitable for clamping and fixing various materials with different sizes, and the clamping speed is fast and stable; under the action of the auxiliary driving mechanism, the friction between the sliding block and the sliding rail can be kept balanced, so that the sliding block can stably slide on the sliding rail, the use speed and effect of the numerical control broaching machine are improved, the stable driving operation of the device is ensured, and the device is suitable for being widely promoted and used.

[0004] The broaching machine driving device in the above file is driven by a hydraulic rod, and can only cut the inner wall of the workpiece, which is not convenient for cutting the outer surface of the turbine disk, and the surface of the broach is attached with iron filings after cutting, which affects the next use if not cleaned in time. SUMMARY

[0005] The present application provides a large turbine disk mortise and tenon broaching machine main transmission device, which has the advantages of convenient cutting of the outer surface of the turbine disk and cleaning of the surface of the broach.

[0006] The technical scheme of the present application is as follows: a large turbine disk mortise and tenon broaching machine main transmission device, comprising a machine shell, a machine cover is hinged to the top of the machine shell, a notch is formed in the surface of the machine cover, strip-shaped openings are formed in the two sides of the machine shell, a coaming is fixedly installed on the inner bottom wall of the machine shell, a protective shell is fixedly installed on the inner side of the coaming, a turbine disk fixing assembly is arranged in the protective shell for clamping the turbine disk, a displacement assembly is arranged on the inner bottom wall of the machine shell, a rack assembly is slidably installed above the displacement assembly, a driving assembly is arranged on the side surface of the rack assembly for driving displacement of the rack assembly, a cleaning assembly is arranged on the outer side of the rack assembly for cleaning the tooth gap of the rack assembly.

[0007] As preferred, the turbine disc fixing assembly comprises a top shell and a bottom shell, the top shell and the bottom shell are connected through two symmetrically arranged pneumatic rods A, the inside of the top shell and the bottom shell is rotatably connected with driving rollers, the shaft end of the driving roller is fixedly connected with the output end of the driving motor, the inside of the top shell and the bottom shell and the inside of the driving roller is fixedly inserted with pneumatic rods B, the output end of the pneumatic rod B is fixedly installed with a displacement clamp plate, the surface of the top shell and the bottom shell and between the two pneumatic rods A is fixedly installed with a fixed clamp plate, the opposite surface of the displacement clamp plate and the fixed clamp plate is movably installed with a ball.

[0008] As preferred, the bottom shell is installed in the inside of the protective shell, the two pneumatic rods A are connected through a connecting rod, the driving rollers respectively extend to the outside of the top shell and the bottom shell, and the turbine disc is arranged between the four driving rollers, the top of the protective shell is provided with an opening corresponding to the turbine disc, the output end of the pneumatic rod B penetrates and extends to the outside, the displacement clamp plate and the driving motor are located on the same side, and the driving motor is respectively installed on the outer surface of the top shell and the bottom shell.

[0009] As preferred, the displacement assembly comprises three pairs of support seats arranged at equal intervals and installed on the inner bottom wall of the shell, slide rods are inserted between the left and right pairs of support seats, the outer side of the slide rod is sleeved with a sliding sleeve, a screw rod is inserted between the middle pair of support seats, the middle end of the slide rod and the screw rod is fixedly installed with a limiting ring, the outer side of the screw rod is threadedly connected with a screw rod sleeve, the outer surface of the screw rod is provided with two thread grooves with opposite threads, the outer side of the screw rod and close to the support seat is fixedly installed with a transmission gear, the side surface of the transmission gear is engaged with a driving gear, the shaft center of the driving gear is fixedly connected with the output end of the displacement driving motor, and the bottom of the displacement driving motor is fixedly connected with the inner wall of the shell through a connecting plate.

[0010] As preferred, the rack assembly comprises a guide rail shell, the two ends of the guide rail shell are inserted in the inside of the strip-shaped port, the bottom of the guide rail shell is fixedly connected with the sliding sleeve and the screw rod sleeve respectively, the inside of the guide rail shell is slidably installed with a rack shell, the inside of the rack shell is slidably installed with a slide bar, the side surface of the slide bar is fixedly installed with a broach, the side of the slide bar close to the rack shell is embedded with a spring one, the other end of the spring one is fixedly installed with a clamping head, the two ends of the rack shell are slidably installed with limiting sliding blocks corresponding to the slide bar, and the side surface of the rack shell is threadedly connected with a locking bolt.

[0011] Preferably, the inner slot of the rack shell is in the shape of an I-beam cross section with the outer shape of the slide bar, the upper and lower surfaces of the broach are provided with limiting grooves, the inner wall of the guide rail shell is fixedly provided with limiting strips corresponding to the limiting grooves, the inner wall of the rack shell is provided with clamping grooves corresponding to the clamping heads, one end of the locking bolt extends into the side threaded hole of the limiting slide block, and the surface of the limiting slide block is fixedly provided with an extension rod.

[0012] Preferably, the driving assembly comprises a bracket mounted on the side surface of the rack shell, a driving bevel gear is rotatably mounted in the bracket and engaged with the side surface of the rack shell, the axis of the driving bevel gear is connected with the main transmission motor, a lubricating oil shell is sleeved on the outer side of the driving bevel gear, an oil shell cover is clamped on the top of the lubricating oil shell, an extrusion plate is arranged in the inner part of the lubricating oil shell and below the driving bevel gear, and spring two is fixedly arranged on the bottom of the extrusion plate.

[0013] Preferably, the side surface of the rack shell is provided with a butt joint corresponding to the driving bevel gear, one side of the driving bevel gear extends into the inner part of the butt joint, the top of the main transmission motor is fixedly connected with the bracket, the lubricating oil shell is in the shape of a semicircle, and the top of the oil shell cover is fixedly provided with an oil injection nozzle.

[0014] Preferably, the cleaning assembly comprises a sliding seat fixedly mounted on the outer side of the guide rail shell, a sliding plate is slidably mounted in the sliding seat, a side plate is fixedly mounted on one side of the sliding plate, a semicircular shell is fixedly mounted on the other side of the sliding plate, a cleaning shaft is rotatably connected in the inner part of the semicircular shell, a steel wire brush is fixedly mounted on the outer side of the cleaning shaft, the shaft rod of the cleaning shaft is fixedly connected with a cleaning motor, the surface of the side plate is detachably connected with the output end of an air cylinder, and the air cylinder is fixedly mounted on the side surface of the guide rail shell.

[0015] The present application has the following advantages:

[0016] (1) The displacement driving motor drives the screw rod to rotate, the screw rod drives two screw rod sleeves to move towards each other, the rack assembly, the driving assembly and the cleaning assembly are folded by the sliding sleeve on the sliding rod, until the end of the toothless side of the broach is attached to the outer side of the turbine disc, then the main transmission motor drives the driving bevel gear to rotate, the driving bevel gear drives the rack shell, the slide bar and the broach to slide in the guide rail shell, the side surface of the broach contacts the outer part of the turbine disc, so that the turbine disc is cut, thereby achieving the purpose of cutting the outer surface of the turbine disc;

[0017] (2) The air cylinder is expanded to drive the side plate to slide, the sliding plate slides in the sliding seat, the semicircular shell and the cleaning shaft move towards the rack assembly, until the steel wire brush is attached to the toothed side of the broach, then the cleaning motor drives the cleaning shaft and the steel wire brush to rotate, the steel wire brush can clean the residual iron filings on the surface of the broach, thereby achieving the purpose of cleaning the surface of the broach;

[0018] (3) A lubricating oil shell is fitted on the outer side of the drive helical gear. The lubricating oil can be injected into the interior of the lubricating oil shell by using the oil injection nozzle on the oil shell cover. The spring will push the extrusion plate to move up and push the lubricating oil to come into contact with the rotating drive helical gear. The drive helical gear also meshes with the tooth groove on the side of the rack shell, thereby reducing wear between transmissions. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the hood closure structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the opening structure of the cover of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the present invention after the casing is removed;

[0022] Figure 4 This is a schematic diagram of the structure of the present invention after the casing is removed;

[0023] Figure 5 This is a schematic diagram of the cross-sectional structure of the present invention;

[0024] Figure 6 This is a schematic diagram of the displacement component structure of the present invention;

[0025] Figure 7 This is a schematic diagram of the displacement component, rack component, and drive component of the present invention;

[0026] Figure 8 This is an exploded structural diagram of the rack assembly and drive assembly of the present invention;

[0027] Figure 9 This is an exploded structural diagram of the rack assembly and drive assembly of the present invention;

[0028] Figure 10 For the present invention Figure 9 Schematic diagram of the structure at point A in the middle;

[0029] Figure 11 This is a schematic diagram of the cleaning component and rack component of the present invention;

[0030] Figure 12 This is a partial structural diagram of the rack assembly of the present invention;

[0031] Figure 13 This is a schematic diagram of the exploded structure of the cleaning component of the present invention;

[0032] Figure 14 This is a schematic diagram of the cleaning component structure of the present invention;

[0033] Figure 15 This is a schematic diagram of the front structure of the turbine disk fixing assembly of the present invention;

[0034] Figure 16 This is a schematic diagram of the rear structure of the turbine disk fixing assembly of the present invention;

[0035] Figure 17 This is a schematic diagram of the turbine disk fixing assembly structure of the present invention;

[0036] Figure 18 This is a schematic diagram of the turbine disk fixing assembly structure of the present invention.

[0037] The labels in the attached diagram are:

[0038] 100-Housing; 200-Cover; 300-Strip-shaped opening; 400-Enclosure plate; 500-Shell; 600-Turbine disc fixing assembly; 700-Displacement assembly; 800-Rack and pinion assembly; 900-Drive assembly; 1000-Cleaning assembly;

[0039] 601-Top shell; 602-Bottom shell; 603-Pneumatic rod A; 604-Drive roller; 605-Drive motor; 606-Pneumatic rod B; 607-Displacement clamp; 608-Fixed clamp; 609-Ball bearing;

[0040] 701-Support base; 702-Slide rod; 703-Slide sleeve; 704-Lead screw; 705-Lead screw sleeve; 706-Transmission gear; 707-Driving gear; 708-Displacement drive motor;

[0041] 801-Guide rail housing; 802-Rack housing; 803-Slide bar; 804-Broach; 805-Spring 1; 806-Clipper; 807-Limiting slider; 808-Locking bolt;

[0042] 901-Bracket; 902-Drive helical gear; 903-Main drive motor; 904-Lubricating oil shell; 905-Oil shell cover; 906-Extrusion plate; 907-Spring 2;

[0043] 1001-Slide; 1002-Slide plate; 1003-Side plate; 1004-Semi-circular shell; 1005-Cleaning shaft; 1006-Wire brush; 1007-Cylinder; 1008-Cleaning motor. Detailed Implementation

[0044] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0045] Please see Figures 1-5The main drive unit of the large turbine disk tenoning broaching machine includes a housing 100, with a cover 200 hinged to the top of the housing 100. The surface of the cover 200 has a notch for the installation of the turbine disk. Both sides of the housing 100 have strip-shaped openings 300 to facilitate the displacement and sliding of the rack assembly 800. A surrounding plate 400 is fixedly installed on the inner bottom wall of the housing 100 to collect the cooling sprayed liquid oil. A protective shell 500 is fixedly installed on the inner side of the surrounding plate 400, and the top of the protective shell 500 has an opening corresponding to the turbine disk to facilitate the installation of the turbine disk.

[0046] Please see Figures 1-5 The casing 500 has a turbine disk fixing assembly 600 inside for clamping the turbine disk; the inner bottom wall of the housing 100 has a displacement assembly 700 for moving the distance between the rack assemblies 800, so that the broach can be close to the outer contour of the turbine disk; the rack assembly 800 is slidably mounted on the top of the displacement assembly 700 for pulling and cutting the turbine disk; the side of the rack assembly 800 has a drive assembly 900 for driving the rack assembly 800; the outer side of the rack assembly 800 has a cleaning assembly 1000 for cleaning the tooth gaps of the rack assembly 800.

[0047] Please see Figures 6-7 The displacement assembly 700 includes three pairs of equally spaced support seats 701 mounted on the inner bottom wall of the housing 100, with two seats per pair arranged symmetrically. A slide rod 702 is inserted between the left and right pairs of support seats 701, and a slide sleeve 703 is fitted on the outer side of the slide rod 702. A lead screw 704 is inserted between the middle pair of support seats 701. Limiting rings are fixedly installed at the middle ends of both the slide rod 702 and the lead screw 704. A lead screw sleeve 705 is threadedly connected to the outer side of the lead screw 704. The outer surface of the lead screw 704 has two threaded grooves with opposite threads, which can control the approach and separation of the lead screw sleeve 705.

[0048] Please see Figures 6-7 A transmission gear 706 is fixedly installed on the outer side of the lead screw 704 and near the support base 701. A drive gear 707 meshes with the side of the transmission gear 706. The shaft of the drive gear 707 is fixedly connected to the output end of the displacement drive motor 708. The bottom of the displacement drive motor 708 is fixedly connected to the inner wall of the housing 100 through a connecting plate. By using the displacement drive motor 708 to drive the lead screw 704 to rotate, the two displacement components 700 can be controlled to move closer and separate along the slide bar 702.

[0049] Please see Figures 8-12The rack and pinion assembly 800 includes a guide rail housing 801, with both ends of the guide rail housing 801 inserted into the inside of the strip-shaped opening 300. The bottom of the guide rail housing 801 is fixedly connected to the sliding sleeve 703 and the lead screw sleeve 705, respectively. A rack housing 802 is slidably installed inside the guide rail housing 801, and a slide bar 803 is slidably installed inside the rack housing 802. The internal slot of the rack housing 802 and the external cross-section of the slide bar 803 are in the shape of an I-beam. A pull cutter 804 is fixedly installed on the side of the slide bar 803. The pull cutter 804 has limiting grooves on its upper and lower surfaces. A limiting strip corresponding to the limiting groove is fixedly installed on the inner wall of the guide rail housing 801 to prevent the pull cutter 804 from rotating on its own.

[0050] Please see Figures 8-12 A spring 805 is embedded on the side of the slide bar 803 near the rack housing 802. A chuck 806 is fixedly installed on the other end of the spring 805. A groove corresponding to the chuck 806 is opened on the inner wall of the rack housing 802. When the puller is assembled, when the slide bar 803 is pushed into the rack housing 802, once a "click" sound is heard as the chuck 806 hits the groove, it indicates that the slide bar 803 is installed in place.

[0051] Please see Figures 8-12 Both ends of the rack housing 802 are slidably fitted with limiting sliders 807 corresponding to the sliders 803 to prevent the sliders 803 from sliding and running after installation. An extension rod is fixedly installed on the surface of the limiting slider 807, so that the limiting slider 807 can be easily pulled away from both ends of the rack housing 802 by hand during disassembly. A locking bolt 808 is threadedly connected to the side of the rack housing 802. One end of the locking bolt 808 extends into the threaded hole on the side of the limiting slider 807. Once the locking bolt 808 is screwed into the threaded hole, the position of the limiting slider 807 can be locked to prevent it from sliding and deviating.

[0052] Please see Figures 9-10 The drive assembly 900 includes a bracket 901 mounted on the side of the rack housing 802. A drive helical gear 902, meshing with the side of the rack housing 802, is rotatably mounted inside the bracket 901. A corresponding interface is provided on the side of the rack housing 802, and one side of the drive helical gear 902 extends into the interface. The axis of the drive helical gear 902 is connected to the main drive motor 903, and the top of the main drive motor 903 is fixedly mounted to the bracket 901. The main drive motor 903 drives the drive helical gear 902 to rotate, which in turn drives the rack housing 802 and the broach 804 to move forward or backward, thus cutting the outer surface of the turbine disk.

[0053] Please see Figures 9-10A lubricating oil shell 904 is fitted around the outer side of the driving helical gear 902. The lubricating oil shell 904 is semi-circular, and an oil shell cover 905 is snapped onto the top of the lubricating oil shell 904. An oil filling nozzle is fixedly installed on the top of the oil shell cover 905. Inside the lubricating oil shell 904 and below the driving helical gear 902, an extrusion plate 906 is provided. A second spring 907 is fixedly installed at the bottom of the extrusion plate 906. The second spring 907 is installed on the inner bottom wall of the lubricating oil shell 904. Once the driving helical gear 902 rotates, the second spring 907 pushes the extrusion plate 906 upward, pushing the lubricating oil upward to contact the driving helical gear 902, thereby reducing the mutual wear between the driving helical gear 902 and the rack shell 802.

[0054] Please see Figures 13-14 The cleaning assembly 1000 includes a slide block 1001 fixedly installed on the outside of the guide rail housing 801. A slide plate 1002 is slidably installed inside the slide block 1001. A side plate 1003 is fixedly installed on one side of the slide plate 1002. A semi-circular shell 1004 is fixedly installed on the other side of the slide plate 1002. A cleaning shaft 1005 is rotatably connected inside the semi-circular shell 1004. A wire brush 1006 is fixedly installed on the outside of the cleaning shaft 1005. The shaft of the cleaning shaft 1005 is fixedly connected to the cleaning motor 1008. The surface of the side plate 1003 is detachably installed to the output end of the cylinder 1007. The cylinder 1007 is fixedly installed on the side of the guide rail housing 801. The unfolding of the cylinder 1007 can push the wire brush 1006 close to the puller 804. Then the cleaning motor 1008 drives the wire brush 1006 to clean the surface of the puller 804.

[0055] Please see Figures 15-18 The turbine disk fixing assembly 600 includes a top shell 601 and a bottom shell 602. The bottom shell 602 is installed inside the protective shell 500. The top shell 601 and the bottom shell 602 are telescopically connected by two symmetrically arranged pneumatic rods A603. The two pneumatic rods A603 are connected by a connecting rod. Drive rollers 604 are rotatably connected to both sides of the interior of the top shell 601 and the bottom shell 602. The drive rollers 604 extend to the outside of the top shell 601 and the bottom shell 602 respectively. The turbine disk is placed between the four drive rollers 604. The shaft end of the drive roller 604 is fixedly connected to the output end of the drive motor 605. The drive motor 605 drives the drive roller 604 to rotate, and the drive roller 604 drives the turbine disk to rotate slowly, which facilitates the cutting of the broach 804.

[0056] Please see Figures 15-18A pneumatic rod B606 is fixedly inserted inside the top shell 601 and bottom shell 602, located inside the drive roller 604. A drive motor 605 is installed on the outer surface of the top shell 601 and bottom shell 602 respectively. The output end of the pneumatic rod B606 passes through and extends to the outside. A displacement clamp 607 is fixedly installed at the output end of the pneumatic rod B606. The displacement clamp 607 and the drive motor 605 are located on the same side. A fixed clamp 608 is fixedly installed on the surface of the top shell 601 and bottom shell 602, located between the two pneumatic rods A603. A ball bearing 609 is movably installed between the opposite surfaces of the displacement clamp 607 and the fixed clamp 608. The displacement clamp 607 can be controlled to move and retract using the pneumatic rod B606. The displacement clamp 607 will clamp the turbine disk. At the same time, the ball bearing 609 will not affect the rotation of the turbine disk.

[0057] Working principle: During use, the displacement drive motor 708 drives the lead screw 704 to rotate. The lead screw 704 drives the two lead screw sleeves 705 to move closer together synchronously. The rack assembly 800, drive assembly 900, and cleaning assembly 1000 slide and retract on the slide rod 702 through the sliding sleeve 703 until the toothless end of the broach 804 is in contact with the outer side of the turbine disk. Then, the main drive motor 903 drives the drive helical gear 902 to rotate. The drive helical gear 902 drives the rack housing 802, the slide rod 803, and the broach 804 to slide in the guide rail housing 801. The side of the broach 804 contacts the outside of the turbine disk to achieve the purpose of cutting, thus facilitating the cutting of the outer surface of the turbine disk.

[0058] The expansion of cylinder 1007 pushes side plate 1003 to slide, slides slide plate 1002 in slide block 1001, and semi-circular shell 1004 and cleaning shaft 1005 move toward rack assembly 800 until wire brush 1006 is attached to the toothed side of broach 804. Then, cleaning motor 1008 is driven to rotate cleaning shaft 1005 and wire brush 1006. Wire brush 1006 can effectively clean the residual iron filings on the surface of broach 804, thereby achieving the purpose of cleaning the surface debris of broach 804.

[0059] By removing the locking bolts 808, the limiting slider 807 can be removed from both ends of the rack housing 802, thereby pushing the slider 803 out of the rack housing 802, thus achieving the purpose of replacing and installing the broach 804.

[0060] A lubricating oil shell 904 is fitted on the outer side of the drive helical gear 902. Lubricating oil can be injected into the interior of the lubricating oil shell 904 using the oil filling nozzle on the oil shell cover 905. The spring 2 907 will push the extrusion plate 906 upward, pushing the lubricating oil upward to contact the rotating drive helical gear 902. The drive helical gear 902 also meshes with the tooth groove on the side of the rack shell 802, thereby reducing wear between transmissions.

[0061] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. The main drive unit of a large turbine disk tenoning machine, characterized by: The device includes a housing (100), with a cover (200) hinged to the top of the housing (100). The cover (200) has a notch on its surface. Both sides of the housing (100) have slots (300). A partition plate (400) is fixedly installed on the inner bottom wall of the housing (100). A protective shell (500) is fixedly installed on the inner side of the partition plate (400). A turbine disk fixing assembly (600) is provided inside the protective shell (500) for clamping the turbine disk. A displacement assembly (700) is provided on the inner bottom wall of the housing (100). A rack assembly (800) is slidably installed above the displacement assembly (700). A drive assembly (900) is provided on the side of the rack assembly (800) for driving the rack assembly (800) to move. A cleaning assembly (1000) is fitted on the outer side of the rack assembly (800) for cleaning the tooth gaps of the rack assembly (800). The displacement assembly (700) includes three pairs of equally spaced support seats (701) mounted on the inner bottom wall of the housing (100). A slide rod (702) is inserted between the left and right pairs of support seats (701), and a slide sleeve (703) is fitted on the outer side of the slide rod (702). A lead screw (704) is inserted between the middle pair of support seats (701). Limiting rings are fixedly installed at the middle ends of both the slide rod (702) and the lead screw (704). A lead screw sleeve is threaded to the outer side of the lead screw (704). (705) The outer surface of the lead screw (704) is provided with two threaded grooves with opposite threads. A transmission gear (706) is fixedly installed on the outer side of the lead screw (704) and near the support seat (701). A drive gear (707) is meshed on the side of the transmission gear (706). The shaft of the drive gear (707) is fixedly connected to the output end of the displacement drive motor (708). The bottom of the displacement drive motor (708) is fixedly connected to the inner wall of the housing (100) through a connecting plate. The rack assembly (800) includes a guide rail housing (801), both ends of which are inserted into the inside of the strip-shaped opening (300). The bottom of the guide rail housing (801) is fixedly connected to the sliding sleeve (703) and the lead screw sleeve (705) respectively. A rack housing (802) is slidably installed inside the guide rail housing (801). A slide bar (803) is slidably installed inside the rack housing (802). A puller (804) is fixedly installed on the side of the slide bar (803). A spring (805) is embedded on the side of the slide bar (803) near the rack housing (802). A chuck (806) is fixedly installed on the other end of the spring (805). Both ends of the rack housing (802) are slidably installed with limiting sliders (807) corresponding to the slide bar (803). A locking bolt (808) is threadedly connected to the side of the rack housing (802).

2. The main drive device of the large turbine disk tenoning broaching machine according to claim 1, characterized in that: The turbine disk fixing assembly (600) includes a top shell (601) and a bottom shell (602). The top shell (601) and the bottom shell (602) are telescopically connected by two symmetrically arranged pneumatic rods A (603). Drive rollers (604) are rotatably connected to both sides of the interior of the top shell (601) and the bottom shell (602). The shaft end of the drive roller (604) is fixedly connected to the output end of the drive motor (605). A pneumatic rod B (606) is fixedly inserted inside the drive roller (604) and located inside the drive roller (602). A displacement clamp (607) is fixedly installed at the output end of the pneumatic rod B (606). A fixed clamp (608) is fixedly installed on the surface of the top shell (601) and the bottom shell (602) between the two pneumatic rods A (603). A ball bearing (609) is movably installed between the opposite surfaces of the displacement clamp (607) and the fixed clamp (608).

3. The main drive device of the large turbine disk tenoning broaching machine according to claim 2, characterized in that: The bottom shell (602) is installed inside the protective shell (500). The two pneumatic rods A (603) are connected by a connecting rod. The drive rollers (604) extend to the outside of the top shell (601) and the bottom shell (602) respectively. The turbine disk is placed between the four drive rollers (604). The top of the protective shell (500) has an opening corresponding to the turbine disk. The output end of the pneumatic rod B (606) passes through and extends to the outside. The displacement clamp (607) and the drive motor (605) are located on the same side. The drive motor (605) is installed on the outer surface of the top shell (601) and the bottom shell (602) respectively.

4. The main drive device of the large turbine disk tenoning broaching machine according to claim 1, characterized in that: The internal slot of the rack housing (802) and the cross-section of the slide bar (803) are in the shape of an I-beam. The upper and lower surfaces of the puller (804) are provided with limiting grooves. The inner wall of the guide rail housing (801) is fixedly installed with a limiting strip corresponding to the limiting groove. The inner wall of the rack housing (802) is provided with a slot corresponding to the chuck (806). One end of the locking bolt (808) extends into the threaded hole on the side of the limiting slider (807). An extension rod is fixedly installed on the surface of the limiting slider (807).

5. The main drive device of the large turbine disk tenoning broaching machine according to claim 1, characterized in that: The drive assembly (900) includes a bracket (901) mounted on the side of the rack housing (802). A drive helical gear (902) that meshes with the side of the rack housing (802) is rotatably mounted inside the bracket (901). The axis of the drive helical gear (902) is connected to the main drive motor (903). A lubricating oil shell (904) is fitted on the outside of the drive helical gear (902). An oil shell cover (905) is snapped onto the top of the lubricating oil shell (904). An extrusion plate (906) is provided inside the lubricating oil shell (904) and below the drive helical gear (902). A spring (907) is fixedly mounted on the bottom of the extrusion plate (906).

6. The main drive device of the large turbine disk tenoning broaching machine according to claim 5, characterized in that: The rack housing (802) has a corresponding interface on its side, which is provided for the drive helical gear (902). One side of the drive helical gear (902) extends into the interior of the interface. The top of the main drive motor (903) is fixedly installed with the bracket (901). The lubricating oil housing (904) is semi-circular. The top of the oil housing cover (905) is fixedly installed with an oil injection nozzle.

7. The main drive device of the large turbine disk tenoning broaching machine according to claim 5, characterized in that: The cleaning assembly (1000) includes a slide (1001) fixedly installed on the outside of the guide rail housing (801), a slide plate (1002) slidably installed inside the slide (1001), a side plate (1003) fixedly installed on one side of the slide plate (1002), and a semi-circular shell (1004) fixedly installed on the other side of the slide plate (1002).

8. The main drive device of the large turbine disk tenoning broaching machine according to claim 7, characterized in that: The cleaning shaft (1005) is rotatably connected inside the semi-circular shell (1004). A wire brush (1006) is fixedly installed on the outside of the cleaning shaft (1005). The shaft of the cleaning shaft (1005) is fixedly connected to the cleaning motor (1008). The surface of the side plate (1003) is detachably installed with the output end of the cylinder (1007). The cylinder (1007) is fixedly installed on the side of the guide rail shell (801).

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