CN215879949U

CN215879949U - Four-jaw chuck for machining coal mining machine workpiece

Info

Publication number: CN215879949U
Application number: CN202121698936.8U
Authority: CN
Inventors: 米建红; 董迪; 彭龙
Original assignee: Shaanxi Rio Tinto Heavy Industry Machinery Co ltd
Current assignee: Shaanxi Rio Tinto Heavy Industry Machinery Co ltd
Priority date: 2021-07-24
Filing date: 2021-07-24
Publication date: 2022-02-22
Anticipated expiration: 2031-07-24

Abstract

The utility model relates to a four-jaw chuck for processing coal-winning machine work piece, which comprises a disc body, the stationary dog, the dwang, set up flutedly on the disk body, the dwang is arranged in the recess and disk body threaded connection, the stationary dog is arranged in the recess with disk body sliding connection, stationary dog and dwang threaded connection, the draw-in groove has been seted up towards the one end of disk body week side to the dwang, including the fluted disc, the power spare, four square poles, four slewing gear, square pole one end and slewing gear fixed connection, the square pole other end stretch into in the draw-in groove with the dwang joint, fluted disc and disk body sliding connection, fluted disc and slewing gear meshing, the one end that the fluted disc was kept away from to slewing gear is less than the lower extreme of stationary dog, the power spare sets up and is used for driving the fluted disc rotation on the disk body. The present application has the effect of simplifying the operation of the four-jaw chuck.

Description

Four-jaw chuck for machining coal mining machine workpiece

Technical Field

The application relates to the field of coal mining machine processing equipment, in particular to a four-jaw chuck for processing a coal mining machine workpiece.

Background

In the process of preparing and processing the coal mining machine, a workpiece is often required to be processed, in the processing process, a chuck is required to be used for fixing the workpiece, the common chuck is a three-jaw chuck, the three-jaw chuck is used for fixing the workpiece by grasping the outer edge of the workpiece in the using process, the three-jaw chuck is difficult to grasp a large workpiece on the coal mining machine, and a four-jaw chuck is required to fix the inner edge of the workpiece.

In the related art, in application No. 201320550697.0, a four-jaw chuck capable of stably clamping a large valve body is disclosed, which has a chuck body and four jaws, wherein the jaws are oppositely provided with long clamping pieces respectively, and the clamping pieces comprise: a rectangular parallelepiped retainer body; a jaw connecting portion located at one end in a length direction of the retainer body, the jaw connecting portion clamping the jaw in a thickness direction of the jaw; and a chucking part located at the other end of the chucking member body in the longitudinal direction and formed in a shape of a Chinese character 'ao' when viewed along the axis, the concave notch being protruded toward the axis of the chuck body.

Aiming at the related technology, in the process of using the four-jaw chuck, the positions of the jaws need to be adjusted one by one, and then the tightness degree of the four jaws is repeatedly compared and adjusted, so that the operation is complicated in the using process, and the inventor thinks that the defect of inconvenient operation exists.

SUMMERY OF THE UTILITY MODEL

In order to simplify the operation of a four-jaw chuck, the present application provides a four-jaw chuck for machining shearer workpieces.

The application provides a four-jaw chuck for processing coal-winning machine work piece adopts following technical scheme:

the utility model provides a four-jaw chuck for processing coal-winning machine work piece, includes disk body, stationary dog, dwang, seted up flutedly on the disk body, the dwang is arranged in the recess and disk body threaded connection, the stationary dog is arranged in the recess and disk body sliding connection, stationary dog and dwang threaded connection, the draw-in groove has been seted up towards the one end of disk body week side to the dwang, including fluted disc, power spare, four square poles, four slewing gear, square pole one end and slewing gear fixed connection, the square pole other end stretch into in the draw-in groove with the dwang joint, fluted disc and disk body sliding connection, fluted disc and slewing gear meshing, the one end that the fluted disc was kept away from to slewing gear is less than the lower extreme of stationary dog, the power spare sets up and is used for driving the fluted disc to rotate on the disk body.

Through adopting above-mentioned technical scheme, when using four-jaw chuck, open the power spare, make power spare drive fluted disc rotate, fluted disc drive rotating gear rotates, and the gear drive square bar rotates, and the square bar rotates and drives the dwang and rotate, and the dwang orders about the fixed jaw and moves towards or keep away from the centre of a circle of disk body, and four fixed jaws block the work piece, are convenient for simplify the operation of four-jaw gear.

Optionally, the power member includes a power gear and a motor, an output shaft of the motor is fixedly connected to a rotating shaft of the power gear, and the power gear is engaged with the fluted disc.

By adopting the technical scheme, the motor is started, the motor drives the power gear to rotate, and the power gear is convenient to drive the fluted disc to rotate.

Optionally, the fluted disc includes a connecting disc and a driving disc, one side of the connecting disc facing the rotating gear is meshed with the rotating gear, one side of the connecting disc far away from the rotating gear is fixedly connected with the driving disc, and one side of the driving disc far away from the connecting disc is meshed with the power gear.

Through adopting above-mentioned technical scheme, power gear rotates the drive-disc and rotates, and the drive-disc drives the connection pad and rotates, and the connection pad drives the running gear and rotates, and the square pole follows the running gear and rotates, and the square pole drives the dwang and rotates, and the dwang drive stationary dog of being convenient for removes.

Optionally, the fluted disc further comprises a belt, the belt is located at a joint of the connecting disc and the driving disc, the belt is fixedly connected with the connecting disc, and the belt is fixedly connected with the driving disc.

Through adopting above-mentioned technical scheme, the tie strap consolidates being connected between connection pad and the driving-disc, reduces connection pad and driving-disc and rotates the possibility that the in-process leads to droing because the load is too big.

Optionally, the periphery of the tray body is provided with a ring groove, the fluted disc is provided with a convex block, the convex block extends into the ring groove, and the convex block is connected with the tray body in a sliding manner.

By adopting the technical scheme, the convex block slides in the ring groove in the rotation process of the fluted disc, so that the fluted disc can slide on the disc body conveniently.

Optionally, the clamping groove comprises a rubber pad, and the rubber pad is fixedly connected with the inner wall of the clamping groove.

Through adopting above-mentioned technical scheme, increase the frictional force between dwang and the square beam, because the too big dropout that leads to of load when reducing square beam drive dwang.

Optionally, the tray body further comprises a handheld plate, and the handheld plate is detachably connected with the tray body.

Through adopting above-mentioned technical scheme, at the in-process of centre gripping work piece, remove four-jaw chuck through holding tightly handheld board, be convenient for remove four-jaw chuck, the process when simplifying four-jaw chuck centre gripping work piece.

Optionally, the handheld plate comprises a plate body, a connecting rod and a clamping ring, one end of the connecting rod is fixedly connected with the connecting disc, and the clamping ring is detachably connected with the plate body.

Through adopting above-mentioned technical scheme, when needs use handheld board, use the snap ring to connect handheld board and disk body, handheld board is connected with four-jaw chuck, when need not using handheld board, dismantles snap ring and disk body, separately holds handheld board and four-jaw chuck.

In summary, the present application includes at least one of the following beneficial technical effects:

1. according to the four-claw gear automatic transmission, the fluted disc, the power part, the four square rods and the four rotating gears are arranged, the power part is started, the power part drives the fluted disc to rotate, the fluted disc drives the rotating gears to rotate, the gears drive the square rods to rotate, the square rods rotate to drive the rotating rods to rotate, the rotating rods drive the fixed claws to move towards or away from the circle center of the disc body, and the four fixed claws clamp a workpiece, so that the four-claw gear operation is simplified;

2. according to the gear disc type gear transmission device, the power part is provided with the power gear and the motor, the motor is started, and the motor drives the power gear to rotate, so that the power gear can conveniently drive the gear disc to rotate;

3. this application is through setting up the handheld board including plate body, connecting rod, snap ring, when needs use handheld board, uses the snap ring to connect handheld board and disk body, and handheld board is connected with four-jaw chuck, when need not using handheld board, dismantles snap ring and disk body, separately holds handheld board and four-jaw chuck.

Drawings

Fig. 1 is a schematic structural diagram of a four-jaw chuck for machining a shearer work piece according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a fixed jaw, a rotating rod, a square rod, a rotating gear and a rubber pad of a four-jaw chuck for machining a coal mining machine workpiece according to an embodiment of the present application.

Fig. 3 is an enlargement of portion a of fig. 1.

Reference numerals: 1. a tray body; 2. a fixed jaw; 3. rotating the rod; 4. a groove; 5. a card slot; 6. a fluted disc; 601. a connecting disc; 602. a drive disc; 7. a power member; 701. a power gear; 702. a motor; 8. a square bar; 9. a rotating gear; 10. a belt; 11. a ring groove; 12. a bump; 13. a rubber pad; 14. a hand-held board; 1401. a plate body; 1402. a connecting rod; 1403. a snap ring.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a four-jaw chuck for processing a coal mining machine workpiece. Referring to fig. 1 and 2, a four-jaw chuck for processing a coal mining machine workpiece comprises a disk body 1, a fixed jaw 2 and a rotating rod 3, wherein a groove 4 is formed in the disk body 1, the rotating rod 3 is positioned in the groove 4 and is in threaded connection with the disk body 1, the fixed jaw 2 is positioned in the groove 4 and is in sliding connection with the disk body 1, the fixed jaw 2 is in threaded connection with the rotating rod 3, a clamping groove 5 is formed in one end, facing the peripheral side of the disk body 1, of the rotating rod 3 and comprises a fluted disc 6, power spare 7, four square poles 8, four slewing gear 9, 8 one ends of square pole and the welding of slewing gear 9, 8 other ends of square pole stretch into draw-in groove 5 in with 3 joints of dwang, fluted disc 6 passes through lug 12 and 11 sliding connection of annular with disk body 1, fluted disc 6 and the meshing of slewing gear 9, the one end that fluted disc 6 was kept away from to slewing gear 9 is less than the lower extreme of stationary dog 2, power spare 7 sets up and is used for driving fluted disc 6 to rotate on disk body 1. When using four-jaw chuck, open power spare 7, make power spare 7 drive fluted disc 6 and rotate, fluted disc 6 drive rotating gear 9 rotates, gear drive square bar 8 rotates, and square bar 8 rotates and drives dwang 3 and rotate, and dwang 3 orders about stationary dog 2 and moves towards or keep away from the centre of a circle of disk body 1, and four stationary dogs 2 block the work piece, are convenient for simplify the operation of four-jaw gear.

Referring to fig. 2 and 3, the toothed disc 6 includes a connecting disc 601 and a driving disc 602, one surface of the connecting disc 601 facing the rotating gear 9 is meshed with the rotating gear 9, one surface of the connecting disc 601 far away from the rotating gear 9 is welded with the driving disc 602, and one surface of the driving disc 602 far away from the connecting disc 601 is meshed with the power gear 701. The power gear 701 rotates the driving disk 602 to rotate, the driving disk 602 drives the connecting disk 601 to rotate, the connecting disk 601 drives the rotating gear 9 to rotate, the square rod 8 rotates along with the rotating gear 9, the square rod 8 drives the rotating rod 3 to rotate, and the rotating rod 3 is convenient to drive the fixing claw 2 to move.

Referring to fig. 2 and 3, the four-jaw chuck further includes a belt 10, in this embodiment, the belt 10 is a steel belt, the belt 10 is located at a connection position between the connection disc 601 and the driving disc 602, the belt 10 is welded to the connection disc 601, and the belt 10 is welded to the driving disc 602. The belt 10 reinforces the connection between the connecting disc 601 and the driving disc 602, and reduces the possibility that the connecting disc 601 and the driving disc 602 fall off due to an excessive load in the rotating process.

Referring to fig. 2 and 3, a circular groove 11 is formed on the periphery of the tray body 1, a convex block 12 is arranged on the fluted disc 6, the convex block 12 extends into the circular groove 11, and the convex block 12 is connected with the tray body 1 in a sliding manner. During the rotation of the toothed disc 6, the projections 12 slide in the annular grooves 11, facilitating the sliding of the toothed disc 6 on the disc body 1.

Referring to fig. 2 and 3, the four-jaw chuck further comprises a rubber pad 13, and the rubber pad 13 is adhered to the inner wall of the clamping groove 5. Increase the frictional force between dwang 3 and the square bar 8, reduce the drop that leads to because the load is too big when square bar 8 drives dwang 3.

Referring to fig. 1 and 3, the four-jaw chuck further comprises a handheld plate 14, the handheld plate 14 comprises a plate body 1401, a connecting rod 1402 and a clamping ring 1403, one end of the connecting rod 1402 is welded with the connecting plate 601, and the clamping ring 1403 is clamped with the plate body 1. When the handheld plate 14 needs to be used, the clamping ring 1403 is used for connecting the handheld plate 14 and the disc body 1, the handheld plate 14 is connected with the four-jaw chuck, and when the handheld plate 14 does not need to be used, the clamping ring 1403 and the disc body 1 are detached, and the handheld plate 14 and the four-jaw chuck are separated. In the process of clamping a workpiece, the four-jaw chuck is moved by tightly holding the hand-held plate 14, so that the four-jaw chuck is convenient to move, and the working procedure of the four-jaw chuck in the process of clamping the workpiece is simplified.

Referring to fig. 1 and 3, the power member 7 may be provided as four independent motors 702, in this embodiment, the power member 7 includes a power gear 701 and a motor 702, an output shaft of the motor 702 is welded to a rotating shaft of the power gear 701, a housing of the motor 702 is detachably connected to the handheld plate 14 by bolts, and the power gear 701 is engaged with the toothed disc 6. When the motor 702 is turned on, the motor 702 drives the power gear 701 to rotate, so that the power gear 701 drives the fluted disc 6 to rotate.

The implementation principle of the four-jaw chuck for processing the coal mining machine workpiece in the embodiment of the application is as follows: when using four-jaw chuck, with snap ring 1403 card on disk body 1, fixed motor 702, motor 702 is opened, motor 702 drives power gear 701 and rotates, power gear 701 rotates drive-disc 602 and rotates, drive-disc 602 drives connection pad 601 and rotates, connection pad 601 drives rotation gear 9 and rotates, square bar 8 follows rotation gear 9 and rotates, under the effect of the increase friction power of rubber pad 13, square bar 8 drives dwang 3 and rotates, dwang 3 orders about the centre of a circle motion of stationary dog 2 orientation or keeping away from disk body 1, four stationary dogs 2 block the work piece, be convenient for simplify the operation of four-jaw gear.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a four-jaw chuck for processing coal-winning machine work piece, includes disk body (1), stationary dog (2), dwang (3), set up fluted (4) on disk body (1), dwang (3) are arranged in recess (4) with disk body (1) threaded connection, stationary dog (2) are arranged in recess (4) with disk body (1) sliding connection, stationary dog (2) and dwang (3) threaded connection, draw-in groove (5), its characterized in that have been seted up towards the one end of disk body (1) week side in dwang (3): including fluted disc (6), power spare (7), four square bars (8), four running gear (9), square bar (8) one end and running gear (9) fixed connection, square bar (8) other end stretch into draw-in groove (5) in with dwang (3) joint, fluted disc (6) and disk body (1) sliding connection, fluted disc (6) and running gear (9) meshing, the one end that fluted disc (6) were kept away from in running gear (9) is less than the lower extreme of stationary dog (2), power spare (7) set up and are used for driving fluted disc (6) to rotate on disk body (1).

2. The four-jaw chuck for machining shearer workpieces according to claim 1, wherein: the power part (7) comprises a power gear (701) and a motor (702), an output shaft of the motor (702) is coaxially and fixedly connected with a rotating shaft of the power gear (701), and the power gear (701) is meshed with the fluted disc (6).

3. The four-jaw chuck for machining shearer workpieces according to claim 2, characterized in that: fluted disc (6) include connection pad (601), driving-disc (602), connection pad (601) mesh with rotating gear (9) towards the one side of rotating gear (9), the one side and driving-disc (602) fixed connection of rotating gear (9) are kept away from in connection pad (601), the one side and the power gear (701) meshing of connection pad (601) are kept away from in driving-disc (602).

4. The four-jaw chuck for machining shearer workpieces according to claim 3, wherein: still include band (10), band (10) are located the junction of connection pad (601) and driving-disc (602), band (10) and connection pad (601) fixed connection, band (10) and driving-disc (602) fixed connection.

5. The four-jaw chuck for machining shearer workpieces according to claim 1, wherein: annular groove (11) have been seted up to disk body (1) week side, be provided with lug (12) on fluted disc (6), lug (12) stretch into in annular groove (11), lug (12) and disk body (1) sliding connection.

6. The four-jaw chuck for machining shearer workpieces according to claim 1, wherein: still include rubber pad (13), rubber pad (13) and draw-in groove (5) inner wall fixed connection.

7. The four-jaw chuck for machining shearer workpieces according to claim 1, wherein: the dish is characterized by further comprising a handheld plate (14), wherein the handheld plate (14) is detachably connected with the dish body (1).

8. The four-jaw chuck for machining shearer workpieces according to claim 7, wherein: the handheld board (14) comprises a board body (1401), a connecting rod (1402) and a clamping ring (1403), one end of the connecting rod (1402) is fixedly connected with the connecting disc (601), and the clamping ring (1403) is detachably connected with the board body (1).