Lifting and rotating turntable equipment for integrally quenching inner and outer rings of large bearing

Abstract

The invention discloses lifting and rotating turntable equipment for integrally quenching inner and outer rings of a large bearing. The lifting and rotating turntable equipment comprises a quenching water tank with an opening in the top, a turntable lifting part, a turntable rotating part and a workpiece clamping part, the workpiece clamping part is arranged in the quenching water tank; the turntable rotating component comprises a rotating transmission shaft, a rotating driving device and a central water distributor; the rotary transmission shaft is of a hollow structure and vertically penetrates through the bottom of the quenching water tank, a driven turntable connected with the workpiece clamping component is arranged at the upper end of the rotary transmission shaft, and a driving turntable is arranged at the lower end of the rotary transmission shaft; the rotation driving device is used for driving the driving turntable to rotate; the central water distributor is arranged in the rotary transmission shaft, the upper end of the central water distributor extends out of the rotary transmission shaft, and a plurality of water distribution holes are formed in the outer side wall of the extending part; the lower end of the central water segregator extends out of the rotating transmission shaft and then is communicated with the water inlet catchment device through a rotating joint; the rotary table lifting component is used for driving the rotary driving device and the workpiece clamping component to ascend and descend.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of induction hardening, in particular to a lifting and rotating rotary table equipment for overall hardening of inner and outer rings of large bearings. BACKGROUND

[0002] Large bearings play a key supporting role in various heavy machinery and equipment, and their main function is to bear radial and axial loads and reduce rotational friction through rolling contact. Since they work under high load and high speed conditions, the inner and outer rings of the bearings must have high hardness and wear resistance to ensure long service life and high performance of the bearings.

[0003] In order to meet this requirement of high hardness and high wear resistance, the inner and outer rings of large bearings are usually subjected to quenching. Quenching process changes the microstructure of the material by rapid heating and cooling, thereby significantly improving its hardness and wear resistance.

[0004] In the prior art, large bearings are mostly subjected to scanning quenching. For processing large-sized workpieces, the processing speed is too slow, and the continuous uninterrupted quenching of large workpieces requires high-frequency power supply to operate at full load for a long time, which easily leads to overheating of the equipment and requires an additional cooling system. Compared with the traditional quenching method, the bainite overall quenching requires slow cooling to the isothermal zone at the critical cooling rate, which is easy to cause the mixing of pearlite or martensite due to improper selection of cooling medium, thereby reducing the processing effect. For the common overall quenching cooling method, artificial injection of quenching liquid into the quenching tank is often required, and the quenching tank required for large-sized workpieces is often deep and large, so artificial water injection has a high safety risk. SUMMARY

[0005] In view of the defects in the prior art, the purpose of the present application is to provide a lifting and rotating rotary table equipment for overall hardening of inner and outer rings of large bearings, which avoids the safety hazards caused by artificial water injection by means of the water collector and water distributor of the rotary table rotating part to inject water into the quenching tank, thereby improving the safety of the equipment.

[0006] In order to achieve the above object, the technical scheme adopted by the present application is: a lifting rotary rotary table equipment for integral quenching of inner and outer rings of large bearings, comprising a top open quenching water tank, a rotary table lifting component, a rotary table rotating component and a workpiece clamping component; the workpiece clamping component is arranged in the quenching water tank and is used for supporting and positioning the workpiece; the rotary table rotating component is used for driving the workpiece clamping component to rotate and injecting quenching liquid into the quenching water tank, and comprises a rotary transmission shaft, a rotary driving device and a central water distributor; the rotary transmission shaft is a hollow structure and vertically penetrates through the bottom of the quenching water tank, the upper end of the rotary transmission shaft is provided with a driven turntable connected with the workpiece clamping component, and the lower end of the rotary transmission shaft is provided with a driving turntable; the rotary driving device is used for driving the driving turntable to rotate; the central water distributor is arranged in the rotary transmission shaft, the upper end of the central water distributor extends out of the rotary transmission shaft, and a plurality of water distribution holes are formed in the outer side wall of the extending part; the lower end of the central water distributor extends out of the rotary transmission shaft and is communicated with a water inlet collector through a rotary joint; the rotary table lifting component is used for driving the rotary driving device and the workpiece clamping component to lift.

[0007] On the basis of the above technical scheme, the quenching water tank is spliced by a plurality of side plates and a bottom plate, and a mounting port is arranged at the center of the bottom of the quenching water tank.

[0008] On the basis of the above technical scheme, the rotary table lifting component comprises a water tank mounting plate, a rotary table support main shaft, a plurality of lifting columns and a plurality of lifting driving devices; the water tank mounting plate is sealingly connected with the mounting port; the rotary table support main shaft is slidingly penetrated through the middle part of the water tank mounting plate, the rotary table support main shaft is a hollow structure, and the rotary transmission shaft is arranged in the rotary table support main shaft; the upper end of the rotary table support main shaft is provided with a rotary table upper support seat for mounting the driven turntable, and the lower end of the rotary table support main shaft is provided with a rotary table lower support seat for mounting the driving turntable; each lifting column is slidingly penetrated through the edge of the water tank mounting plate, and the upper end of the lifting column is connected with the bottom of the rotary table upper support seat; the driving rod of the lifting driving device is connected with the lower end of the corresponding lifting column, and is used for driving the lifting column to lift.

[0009] On the basis of the above technical scheme, the lifting column is slidingly penetrated through the water tank mounting plate through a mounting seat, and a locking hole is formed in the side wall of the lifting column; a locking mechanism is arranged on the side surface of the mounting seat, and the driving end of the locking mechanism is connected with a locking block matched with the locking hole.

[0010] On the basis of the above technical scheme, the driving turntable is connected with the rotary table lower support seat through a slewing bearing, and the rotary driving device and the water inlet collector are both arranged below the slewing bearing.

[0011] On the basis of the above technical scheme, the bottom of the water tank mounting plate is connected with the rotary table base through a plurality of rotary table support columns.

[0012] On the basis of the above technical scheme, the workpiece clamping component comprises a center seat and a plurality of support positioning arms distributed around the center seat, and a second water baffle is arranged between every two adjacent support positioning arms.

[0013] On the basis of the above technical scheme, the support positioning arm comprises a workpiece support arm for supporting the workpiece and a workpiece clamping arm for clamping the workpiece.

[0014] On the basis of the above technical scheme, the passive turntable is provided with a support block for mounting the center seat, a plurality of clamping support arms corresponding to the support positioning arms are arranged around the passive turntable, a support frame for mounting the support positioning arm is arranged on the clamping support arm, and a first water baffle is arranged between every two adjacent clamping support arms.

[0015] On the basis of the above technical scheme, the bottom of the quenching water tank is provided with a bottom frame.

[0016] The beneficial effects of the present application are as follows: 1. The present application avoids the safety hazards caused by manual water injection by using the water collector and the water distributor of the rotary table rotating component to inject water into the quenching water tank, thereby improving the safety of the equipment.

[0017] 2. The rotary table lifting mechanism of the present application can select multiple modes, such as pneumatic, hydraulic, gear and rack, etc., and the mode is flexible and variable to improve the application range. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the lifting rotary table equipment in the present application; Figure 2 It is a structural schematic diagram of the quenching water tank in the present application; Figure 3 It is a top view of the quenching water tank in the present application; Figure 4 It is a structural schematic diagram of the rotary table lifting component in the present application; Figure 5 It is a working principle diagram of the locking mechanism in the present application; Figure 6 It is a structural schematic diagram of the lifting slide column in the present application; Figure 7 It is a structural schematic diagram of the rotary table rotating component in the present application; Figure 8 It is a front view of the rotary table rotating component in the present application; Figure 9 It is a structural schematic diagram of the workpiece clamping component in the present application; Figure 10 It is a bottom view of the workpiece clamping component in the present application.

[0019] Reference signs: 1-quenching water tank; 11-side plate; 12-bottom plate; 13-mounting port; 14-bottom frame; 2-turntable lifting component; 201-water tank mounting plate; 202-upper support seat of turntable; 203-mounting seat; 204-lifting slide column; 205-lifting driving device; 206-locking mechanism; 207-locking block; 208-locking hole; 209-turntable support main shaft; 210-lower support seat of turntable; 211-turntable base; 212-turntable support column; 3-turntable rotating component; 301-passive turntable; 302-rotating transmission shaft; 303-active turntable; 304-slewing bearing; 305-rotating driving device; 306-central water distributor; 307-water distribution hole; 308-rotating joint; 309-water inlet water collector; 310-supporting block; 311-clamping supporting arm; 312-supporting frame; 313-first water baffle; 4-workpiece clamping component; 41-central seat; 42-supporting positioning arm; 43-second water baffle. DETAILED DESCRIPTION

[0020] Embodiments of the present application are described in detail below with reference to the accompanying drawings, in which the same or similar components have the same or similar designations and functions throughout the various figures and descriptions in which:

[0021] In the description of the present application, it should be noted that, for orientation words, such as the terms "center", "transverse (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation and positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and cannot be understood as limiting the specific protection scope of the present application.

[0022] In addition, the terms "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the "first", "second" features defined can explicitly or implicitly include one or more of the features, and in the description of the present application, the meaning of "several", "a number of" is two or more, unless otherwise explicitly and specifically limited.

[0023] The technical scheme of the present application and its beneficial effects will be more apparent and explicit through the further description of the specific embodiments of the present application in combination with the accompanying drawings of the description. The description of the embodiments by referring to the accompanying drawings is exemplary and is intended to explain the present application, but cannot be understood as a limitation of the present application.

[0024] Referring to Figure 1 As shown in the figure, the embodiment of the present application provides a lifting and rotating rotary table equipment for overall quenching of large bearing inner and outer rings, which comprises a top-open quenching water tank 1, and further comprises a rotary table lifting component 2, a rotary table rotating component 3 and a workpiece clamping component 4.

[0025] Referring to Figures 9-10 As shown in the figure, the workpiece clamping component 4 is arranged in the quenching water tank 1 and is used for supporting and positioning the workpiece; specifically, the workpiece clamping component 4 comprises a central seat 41 and a plurality of supporting and positioning arms 42 distributed around the central seat 41, and a second water baffle 43 is arranged between each adjacent two supporting and positioning arms 42. Specifically, the supporting and positioning arm 42 comprises a workpiece supporting arm for supporting the workpiece and a workpiece clamping arm for clamping the workpiece.

[0026] Referring to Figures 7-8 As shown in the figure, the rotary table rotating component 3 is used for driving the workpiece clamping component 4 to rotate and injecting quenching liquid into the quenching water tank 1, and comprises a rotating transmission shaft 302, a rotating driving device 305 and a central water distributor 306; the rotating transmission shaft 302 is of hollow structure and vertically penetrates through the bottom of the quenching water tank 1, the upper end of the rotating transmission shaft 302 is provided with a driven turntable 301 connected with the workpiece clamping component 4, and the lower end of the rotating transmission shaft 302 is provided with a driving turntable 303; the rotating driving device 305 is used for driving the driving turntable 303 to rotate; the central water distributor 306 is arranged in the rotating transmission shaft 302, the upper end of the central water distributor 306 extends out of the rotating transmission shaft 302, and a plurality of water distribution holes 307 are formed in the outer side wall of the extended part; the lower end of the central water distributor 306 extends out of the rotating transmission shaft 302 and is communicated with a water inlet and water collector 309 through a rotary joint 308; specifically, the driving turntable 303 is connected with a rotary table lower support seat 210 through a slewing bearing 304, and the rotating driving device 305 and the water inlet and water collector 309 are both arranged below the slewing bearing 304. The driven turntable 301 is provided with a supporting block 310 for mounting the central seat 41, a plurality of clamping supporting arms 311 corresponding to the supporting and positioning arms 42 are arranged around the driven turntable 301, and the clamping supporting arms 311 are provided with supporting frames 312 for mounting the supporting and positioning arms 42, and a first water baffle 313 is arranged between each adjacent two clamping supporting arms 311.

[0027] Referring to Figures 4-6As shown, the turntable lifting component 2 is used to drive the rotary drive device 305 and the workpiece clamping component 4 to lift. Specifically, the turntable lifting component 2 includes a water tank mounting plate 201, a turntable support spindle 209, several lifting slide columns 204, and several lifting drive devices 205; the water tank mounting plate 201 is sealed to the mounting port 13; the turntable support spindle 209 slides through the middle of the water tank mounting plate 201, and the turntable support spindle 209 has a hollow structure, with the rotary transmission shaft 302 installed inside the turntable support spindle 209; the upper end of the turntable support spindle 209 is provided with a tool for... A turntable support 202 is mounted on the turntable platform for the passive turntable 301. A lower turntable support 210 for mounting the active turntable 303 is located at the lower end of the turntable support spindle 209. Each lifting column 204 slides through the edge of the water tank mounting plate 201, and its upper end is connected to the bottom of the turntable support 202. The drive rod of the lifting drive device 205 is connected to the lower end of the corresponding lifting column 204 to drive its lifting motion. The lifting column 204 slides through the water tank mounting plate 201 via the mounting base 203, and a locking hole 208 is provided on the side wall of the lifting column 204. A locking mechanism 206 is provided on the side of the mounting base 203, and a locking block 207 adapted to the locking hole 208 is connected to the drive end of the locking mechanism 206. The bottom of the water tank mounting plate 201 is connected to the turntable base 211 via several turntable support columns 212.

[0028] See Figures 2-3 As shown, the quenching water tank 1 is assembled from several side plates 11 and a bottom plate 12, and an installation port 13 is provided at the center of the bottom of the quenching water tank 1. Specifically, a base frame 14 is provided at the bottom of the quenching water tank 1.

[0029] The working principle of this invention is as follows: Before processing begins, the machine tool injects quenching fluid into the quenching water tank through the water collector and distributor of the rotary table's rotating component. At the start of processing, the workpiece is mounted and fixed on the workpiece rotary table component. The rotary table lifting component drives the rotary table rotating component and the workpiece clamping component to move to the appropriate position. Once in the appropriate position, the locking mechanism of the rotary table lifting component locks the lifting slide column, fixing the position of the workpiece clamping component. After the heating component completes heating (during which the rotary table rotating component can rotate the workpiece), the locking mechanism of the rotary table lifting component retracts, causing the rotary table lifting component to lower the rotary table rotating component and the workpiece clamping component into the quenching water tank. The quenching water tank then quenches the workpiece. After quenching, the workpiece driving component moves the workpiece clamping component to the appropriate position to remove the workpiece, thus ending the quenching process.

[0030] In the description, the use of terms "one embodiment", "preferably", "in an example", "in a particular example" or "in some examples" etc. means that a particular feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application and is not necessarily included in all embodiments or examples. Furthermore, the described particular features, structures, materials or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0031] The application is not limited to the above-described embodiments, and various improvements and modifications can be made by those skilled in the art without departing from the principles of the application, and these improvements and modifications are also considered to be within the scope of the application. The contents not described in detail in the specification are the prior art known to those skilled in the art.

Claims

1. A large bearing inner and outer ring integrated quenching lifting rotary turntable equipment, comprising a top open quenching water tank (1), characterized in that: It also includes a rotating table lifting component (2), a rotating table rotating component (3) and a workpiece clamping component (4); The workpiece clamping component (4) is arranged in the quenching water tank (1) and is used for supporting and positioning the workpiece; The rotating table rotating component (3) is used for driving the workpiece clamping component (4) to rotate and injecting quenching liquid into the quenching water tank (1), and comprises a rotating transmission shaft (302), a rotating driving device (305) and a central water distributor (306); The rotating transmission shaft (302) is vertically arranged through the bottom of the quenching water tank (1) and has a hollow structure, the upper end of the rotating transmission shaft (302) is provided with a driven turntable (301) connected with the workpiece clamping component (4), and the lower end of the rotating transmission shaft (302) is provided with a driving turntable (303); The rotating driving device (305) is used for driving the driving turntable (303) to rotate; The central water distributor (306) is arranged in the rotating transmission shaft (302) and has an upper end extending out of the rotating transmission shaft (302), and the outer side wall of the extending part is provided with a plurality of water distribution holes (307); the lower end of the central water distributor (306) extends out of the rotating transmission shaft (302) and is communicated with a water inlet water collector (309) through a rotating joint (308); The rotating table lifting component (2) is used for driving the rotating driving device (305) and the workpiece clamping component (4) to lift.

2. The large bearing inner and outer race integrated quenching and lifting rotary turntable apparatus of claim 1, wherein: The quenching water tank (1) is assembled by a plurality of side plates (11) and a bottom plate (12), and the bottom center of the quenching water tank (1) is provided with a mounting port (13).

3. The lift and rotate rotary table apparatus for large bearing inner and outer race integrated quenching as claimed in claim 2 wherein: The rotating table lifting component (2) comprises a water tank mounting plate (201), a rotating table supporting main shaft (209), a plurality of lifting slide columns (204) and a plurality of lifting driving devices (205); The water tank mounting plate (201) is sealingly connected with the mounting port (13); The rotating table supporting main shaft (209) is slidingly arranged through the middle part of the water tank mounting plate (201), has a hollow structure, and the rotating transmission shaft (302) is arranged in the rotating table supporting main shaft (209); the upper end of the rotating table supporting main shaft (209) is provided with a rotating table upper supporting seat (202) for mounting the driven turntable (301), and the lower end of the rotating table supporting main shaft (209) is provided with a rotating table lower supporting seat (210) for mounting the driving turntable (303); Each lifting slide column (204) is slidingly arranged through the edge of the water tank mounting plate (201), and the upper end of the lifting slide column (204) is connected with the bottom of the rotating table upper supporting seat (202); The driving rod of the lifting driving device (205) is connected with the lower end of the corresponding lifting slide column (204) and is used for driving the lifting slide column (204) to lift.

4. The lift and rotate rotary table apparatus for large bearing inner and outer race integrated quenching as claimed in claim 3 wherein: The lifting slide column (204) is slidingly arranged through the water tank mounting plate (201) through a mounting seat (203), and the side wall of the lifting slide column (204) is provided with a locking hole (208); the side surface of the mounting seat (203) is provided with a locking mechanism (206), and the driving end of the locking mechanism (206) is connected with a locking block (207) matched with the locking hole (208).

5. The large bearing inner and outer race integrated quenching and lifting and rotating turntable apparatus of claim 3, wherein: The main rotating disc (303) is connected with the lower support base (210) of the rotating table through a slewing bearing (304), and the rotating driving device (305) and the water inlet collector (309) are arranged below the slewing bearing (304).

6. The large bearing inner and outer race integrated quenching and lifting rotary turntable apparatus as claimed in claim 3, wherein: The bottom of the water tank mounting plate (201) is connected with the rotating table base (211) through a plurality of rotating table support columns (212).

7. The large bearing inner and outer race integrated quenching and lifting rotary turntable apparatus as claimed in claim 1, wherein: The workpiece clamping component (4) comprises a central seat (41) and a plurality of support positioning arms (42) distributed around the central seat (41), and a second water baffle (43) is arranged between every two adjacent support positioning arms (42).

8. The large bearing inner and outer race integrated quenching and lifting rotary turntable apparatus as claimed in claim 7, wherein: The support positioning arm (42) comprises a workpiece support arm for supporting a workpiece and a workpiece clamping arm for clamping the workpiece.

9. The large bearing inner and outer race integrated quenching and lifting rotary turntable apparatus as claimed in claim 7, wherein: The passive rotating disc (301) is provided with a support block (310) for mounting the central seat (41), and a plurality of clamping support arms (311) corresponding to the support positioning arms (42) are arranged around the passive rotating disc (301), and the clamping support arm (311) is provided with a support frame (312) for mounting the support positioning arm (42), and a first water baffle (313) is arranged between every two adjacent clamping support arms (311).

10. The large bearing inner and outer race integrated quenching and lifting rotary turntable apparatus as claimed in claim 1, wherein: The bottom of the quenching water tank (1) is provided with a bottom frame (14).

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