CN111546079B

CN111546079B - Double-axis equipment frame body of motor pump casing casting equipment

Info

Publication number: CN111546079B
Application number: CN202010389301.3A
Authority: CN
Inventors: 叶军
Original assignee: Shaoxing Zhuocheng New Material Co ltd
Current assignee: Shaoxing Zhuocheng New Material Co.,Ltd.
Priority date: 2020-05-10
Filing date: 2020-05-10
Publication date: 2021-06-15
Anticipated expiration: 2040-05-10
Also published as: CN111546079A

Abstract

The invention discloses a double-axis equipment frame body of motor pump casing casting equipment, relates to the technical field of mechanical casing casting and processing, and solves the problems that the processing position is inconvenient to adjust through control according to needs, the processing is generally single-line processing, space resources are wasted, and efficiency is not improved conveniently. A double-axis equipment frame body of motor pump casing casting equipment comprises a frame body; the bottom of the frame body is of a connected frame structure; the two sides of the frame body are uniformly provided with staggered triangular frame bodies in a body type, and the top of the frame body is fixedly provided with a top frame through an upright post; two groups of rack frames are fixedly arranged in the two sides of the top frame through bolts; through being provided with mobile device and transmission, for the support body provides the axial displacement function that stability is strong, drive gear through the motor and can carry out the four-wheel drive removal on the rack, power supply is balanced and synchronous, sticks together the wheel and moves with V type groove meshing when rotating, and stability is stronger, and what receive when can reducing the pump body removal rocks, prevents that the pine from taking off.

Description

Double-axis equipment frame body of motor pump casing casting equipment

Technical Field

The invention relates to the technical field of casting and processing of mechanical shells, in particular to a double-axis equipment frame body of motor pump shell casting equipment.

Background

A pump is a machine that delivers or pressurizes a gaseous liquid, and transfers mechanical energy of a prime mover or other external energy to the gas or liquid; due to the installation requirements of internal parts, various cavity structures are required in the general pump, and grinding or drilling through a numerical control machine tool is generally required at present.

However, the moving distance of mechanical arm is limited in the digit control machine tool that uses at present, and is limited to large-scale work piece or apart from longer work piece processingcapacity, and the frock of lathe is fixed frock, and inconvenient as required adjusts the processing position through control, and general processing is single line processing, and space resource is more wasted, is unfavorable for the lifting efficiency, consequently, unsatisfied current demand, to this we have proposed the biax equipment support body of a motor pump casing casting equipment.

Disclosure of Invention

Problem (A)

The invention aims to provide a double-axis equipment frame body of motor pump shell casting equipment, which aims to solve the problems that the moving distance of a mechanical arm in a currently used numerical control machine tool is limited, the processing capacity of a large workpiece or a workpiece with a long distance is limited, the tool of the machine tool is a fixed tool, the processing position is inconvenient to adjust through control according to needs, the processing is generally single-line processing, space resources are wasted, and the efficiency is not improved.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: a double-axis equipment frame body of motor pump casing casting equipment comprises a frame body; the bottom of the frame body is of a connected frame structure; the two sides of the frame body are uniformly provided with staggered triangular frame bodies in a body type, and the top of the frame body is fixedly provided with a top frame through an upright post; two groups of rack frames are fixedly arranged in the two sides of the top frame through bolts; two groups of moving devices are slidably arranged in the rack frame; two groups of transmission shafts are rotatably arranged at the bottom of the mobile device; the middle of the transmission shaft is rotatably provided with a transmission device; the top of the transmission device is fixedly provided with a motor base through a bolt; four groups of connecting rods are fixedly arranged at the top of the motor base; the bottom of the transmission device is fixedly provided with a vertical rod; two groups of lifting seats are arranged on two sides of the bottom of the upright rod in a sliding manner; the roof-rack bottom even the pole is fixed to be provided with the three-phase electroplax.

Preferably, the rack frame further comprises a wheel track and a V-shaped groove; the bottom of each rack frame is provided with a wheel rail, and the middle of the inner side of each wheel rail is provided with a V-shaped groove; the bottom parts of the two sides of the rack frame are both provided with rack structures.

Preferably, the moving device further comprises a top seat, a top wheel and a connecting vertical plate; the top of the moving device is fixedly provided with a top seat through a bolt, and the middle of the top seat is provided with a top wheel through a rotating shaft; the two sides of the moving device and the two sides of the transmission device are fixedly connected through connecting vertical plates arranged on bolts; the transmission shaft also comprises a lump wheel and a gear; the two ends of the transmission shaft are positioned in the middle of the mobile device and are fixedly provided with lump wheels through key connection, and the middles of the lump wheels are matched with the V-shaped grooves; the wheel both sides that stick together all fixedly are provided with the gear, and the gear all meshes with rack both sides bottom.

Preferably, the transmission device further comprises a vertical rod seat and a worm wheel; the bottom of the transmission device is fixedly provided with a vertical rod seat through a bolt, and the vertical rod is fixed in the middle of the bottom of the vertical rod seat; the transmission shaft is positioned in the middle of the transmission device and is fixedly provided with a worm wheel.

Preferably, the motor base further comprises a motor and a worm; the outer side of the motor base is fixedly provided with a motor through a bolt; the inner side of the motor is provided with a worm in a moving way through a coupler, and the worm is rotationally arranged in the transmission device through a bearing; two sets of worms are axially arranged and are respectively connected with the two sets of worm gears in a moving mode.

Preferably, the upright rod further comprises a shaft bracket, a connecting rod, a double-end shaft bracket, a guide rod and a jacking screw rod; the bottoms of the two sides of the vertical rod seat are respectively fixedly provided with a shaft bracket, and the shaft brackets are respectively provided with a connecting rod in a rotating way through a rotating shaft; the other end of each connecting rod is rotatably provided with a double-end shaft bracket through a rotating shaft, and the bottoms of the double-end shaft brackets are respectively connected with a lifting seat through the connecting rods; guide rods are fixedly arranged on two sides of the vertical rod, and the lifting seats are arranged outside the guide rods in a sliding manner; the guide rod is provided with a sliding seat in an all-sliding mode, jacking screws are arranged in the sliding seat in a rotating mode through bearings, and the jacking screws are connected with the double-end shaft frame in a moving mode.

Preferably, the lifting seat further comprises a round guide rail, an adjustable baffle, a baffle sliding block and a lock catch; the bottom of the lifting seat is of a triangular ladder-shaped structure; round guide rails are uniformly arranged on two sides of the top of the lifting seat; baffle sliding blocks are arranged at the bottoms of the two sides of the adjustable baffle in a uniform mode, the baffle sliding blocks are arranged at the tops of the round guide rails in a sliding mode, and jackscrews are arranged on the inner sides of the baffle sliding blocks; the front sides of the lifting seats are rotatably provided with lock catches through hinged connection; the rear side of the lock catch is rotatably provided with a screw.

Preferably, the connecting rod further comprises an outer metal pulley and an inner metal pulley; the three-phase electric plate also comprises an electrifying chute; two groups of outer metal pulleys are rotatably arranged on the outer side of the top of the connecting rod through a rotating shaft; an inner metal pulley is rotatably arranged in the middle of the top of the connecting rod through a rotating shaft; four groups of electrifying chutes are formed in the bottom of the three-phase electric plate, the electrifying chutes are all T-shaped grooves, and metal layers are arranged on the inner sides of the electrifying chutes; the outer metal pulleys and the inner metal pulleys are arranged in the power-on sliding groove in a sliding mode, the outer metal pulleys are in contact with the bottoms of the two sides of the power-on sliding groove, and the inner metal pulleys are in contact with the tops of the two sides of the power-on sliding groove; the outer metal pulley and the inner metal pulley are respectively provided with a rotating shaft which penetrates through the connecting rod and is provided with a circuit, and the rotating shafts penetrate out of one side of the bottom of the connecting rod; and three groups of metal layers in the electrified sliding groove are connected with the three-phase live wire, and one group of metal layers in the electrified sliding groove is connected with the return circuit zero line.

(III) advantageous effects

The invention provides a double-axis equipment frame body of motor pump shell casting equipment, which provides an axial movement function with strong stability for the frame body by arranging a moving device and a transmission device, can carry out four-wheel drive movement on a rack by driving a gear by a motor, has balanced and synchronous power supply, is engaged with a V-shaped groove to move when a lump wheel rotates, has stronger stability, can reduce the shaking received when a pump body moves, and prevents loosening.

Secondly, the setting of even pole and three-phase electroplax can guarantee that the in-process that the pump body removed is long-range to last to provide the power supply continuation of journey for the motor, guarantees that the motor can carry out axial removal smoothly, has replaced original line connection, can avoid electric wire overlap joint or the phenomenon such as damage that limited power supply probably appears when removing, is favorable to frequent axial displacement adjustment.

Moreover, the arrangement of the upright rod and the lifting seat provides a height-adjustable fixing function for the pump body, the screw thread transmission can be converted into a tensile force by rotating the jacking screw rod, a sliding block structure is formed, the lifting seat is lifted, and the height of the pump body is adjusted; according to different models of pump bodies, the position of the adjustable baffle can be adjusted to adapt to pump shells with different thicknesses, and the lock catch structure is convenient to fix or release and simple in structure and strong in stability; the mounting structures are two groups, different heights can be adjusted, the mounting structures can be respectively matched with the double-line machine tool for machining, the occupied space is reduced, and the working efficiency is improved.

Drawings

FIG. 1 is a schematic perspective view of an embodiment of the present invention;

FIG. 2 is a schematic bottom view of the embodiment of the present invention;

FIG. 3 is a schematic perspective view of a mobile device according to an embodiment of the present invention;

FIG. 4 is a schematic perspective view of a transmission according to an embodiment of the present invention;

FIG. 5 is a schematic perspective view of an upright of an embodiment of the present invention;

fig. 6 is a schematic perspective view of a connecting rod according to an embodiment of the present invention;

FIG. 7 is an enlarged partial structural view of part A in the embodiment of the present invention;

FIG. 8 is an enlarged partial structural view of a portion B in the embodiment of the present invention;

in fig. 1 to 8, the correspondence between the part names or lines and the reference numbers is:

1. the device comprises a frame body, 2, a top frame, 3, a rack frame, 301, a wheel track, 302, a V-shaped groove, 4, a moving device, 401, a top seat, 402, a top wheel, 403, a connecting vertical plate, 5, a transmission shaft, 501, a lump wheel, 502, a gear, 6, a transmission device, 601, a vertical rod seat, 602, a worm wheel, 7, a motor seat, 701, a motor, 702, a worm, 8, a vertical rod, 801, a shaft frame, 802, a connecting rod, 803, a double-head shaft frame, 804, a guide rod, 805, a jacking screw rod, 9, a lifting seat, 901, a round guide rail, 902, an adjustable baffle, 903, a baffle sliding block, 904, a lock catch, 10, a connecting rod, 1001, an outer metal pulley, 1002, an inner metal pulley, 11, a three-phase electric plate, 1101 and an electrified sliding.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1 to 8, an embodiment of the present invention includes: a double-axis equipment frame body of motor pump casing casting equipment comprises a frame body 1; the bottom of the frame body 1 is of a connected frame structure; the two sides of the frame body 1 are uniformly arranged into staggered triangular frame bodies, and the top of the frame body 1 is fixedly provided with a top frame 2 through an upright post; two groups of rack frames 3 are fixedly arranged in the two sides of the top frame 2 through bolts; the rack 3 further comprises a wheel track 301 and a V-shaped groove 302; the bottom of each rack 3 is provided with a wheel rail 301, and the middle of the inner side of each wheel rail 301 is provided with a V-shaped groove 302; the bottoms of the two sides of the rack frame 3 are both provided with rack structures; two groups of moving devices 4 are arranged in the rack 3 in a sliding way; the moving device 4 further includes a top seat 401, a top wheel 402, and a connecting upright plate 403; the top of the mobile device 4 is fixedly provided with a top seat 401 through a bolt, and the middle of the top seat 401 is provided with a top wheel 402 through a rotating shaft; the two sides of the moving device 4 and the transmission device 6 are fixedly connected through a connecting vertical plate 403 arranged on a bolt; the transmission shaft 5 also comprises a lump wheel 501 and a gear 502; two ends of the transmission shaft 5 are positioned in the middle of the mobile device 4 and are fixedly provided with lump wheels 501 through key connection, and the middles of the lump wheels 501 are matched with the V-shaped grooves 302; gears 502 are fixedly arranged on two sides of the lump wheel 501, and the gears 502 are meshed with the bottoms of two sides of the rack 3; the bottom of the mobile device 4 is rotatably provided with two groups of transmission shafts 5; the middle of the transmission shaft 5 is rotatably provided with a transmission device 6; wherein, the transmission device 6 also comprises a vertical rod seat 601 and a worm wheel 602; the bottom of the transmission device 6 is fixedly provided with a vertical rod seat 601 through a bolt, and a vertical rod 8 is fixed in the middle of the bottom of the vertical rod seat 601; worm wheels 602 are fixedly arranged at the middle of the transmission device 6 of the transmission shaft 5; the top of the transmission device 6 is fixedly provided with a motor base 7 through bolts, and the motor base 7 is a common self-locking motor and has no requirement on rotating speed; wherein, the motor base 7 also comprises a motor 701 and a worm 702; a motor 701 is fixedly arranged on the outer side of the motor base 7 through a bolt; a worm 702 is movably arranged on the inner side of the motor 701 through a coupler, and the worm 702 is rotatably arranged in the transmission device 6 through a bearing; two sets of worm 702 are axially arranged, and the worm 702 is respectively connected with the two sets of worm wheels 602 in a moving manner; four groups of connecting rods 10 are fixedly arranged at the top of the motor base 7; the bottom of the transmission device 6 is fixedly provided with a vertical rod 8; wherein, the upright rod 8 further comprises a shaft bracket 801, a connecting rod 802, a double-end shaft bracket 803, a guide rod 804 and a jacking screw 805; shaft brackets 801 are fixedly arranged at the bottoms of the two sides of the upright rod seat 601, and connecting rods 802 are rotatably arranged in the shaft brackets 801 through rotating shafts; the other ends of the connecting rods 802 are respectively rotatably provided with a double-end shaft bracket 803 through a rotating shaft, and the bottoms of the double-end shaft brackets 803 are respectively connected with a lifting seat 9 through the connecting rods 802; guide rods 804 are fixedly arranged on both sides of the vertical rod 8, and the lifting seats 9 are arranged outside the guide rods 804 in a sliding manner; sliding seats are arranged outside the guide rods 804 in a sliding manner, jacking screws 805 are arranged in the sliding seats in a rotating manner through bearings, and the jacking screws 805 are movably connected with the double-head shaft bracket 803; two groups of lifting seats 9 are arranged on two sides of the bottom of the upright rod 8 in a sliding manner; the connecting rod 10 at the bottom of the top frame 2 is fixedly provided with a three-phase electric plate 11.

The lifting seat 9 further comprises a round guide rail 901, an adjustable baffle 902, a baffle sliding block 903 and a lock 904; the bottom of the lifting seat 9 is of a triangular ladder-shaped structure; round guide rails 901 are uniformly arranged on two sides of the top of the lifting seat 9; baffle sliders 903 are integrally arranged at the bottoms of the two sides of the adjustable baffle 902, the baffle sliders 903 are arranged at the tops of the circular guide rails 901 in a sliding mode, and jackscrews are arranged on the inner sides of the baffle sliders 903; the front sides of the lifting seats 9 are rotatably provided with lock catches 904 through hinged connection; the rear side of the lock catch 904 is rotatably provided with a screw.

Wherein, the connecting rod 10 also comprises an outer metal pulley 1001 and an inner metal pulley 1002; the three-phase electric plate 11 further comprises an electrifying chute 1101; two groups of outer metal pulleys 1001 are rotatably arranged on the outer side of the top of the connecting rod 10 through a rotating shaft; an inner metal pulley 1002 is rotatably arranged in the middle of the top of the connecting rod 10 through a rotating shaft; four groups of electrifying chutes 1101 are formed in the bottom of the three-phase electric plate 11, the electrifying chutes 1101 are all T-shaped grooves, and metal layers are arranged on the inner sides of the electrifying chutes 1101; the outer metal pulley 1001 and the inner metal pulley 1002 are arranged in the electrifying chute 1101 in a sliding manner, the outer metal pulley 1001 is in contact with the bottoms of two sides of the electrifying chute 1101, and the inner metal pulley 1002 is in contact with the tops of two sides of the electrifying chute 1101; the outer metal pulley 1001 and the inner metal pulley 1002 both have rotating shafts which penetrate through the connecting rod 10 to be provided with circuits and penetrate out of one side of the bottom of the connecting rod 10; three metal layers in the power-on sliding groove 1101 are connected with a three-phase live wire, and one metal layer in the power-on sliding groove 1101 is connected with a return circuit zero wire.

The working principle is as follows: when the adjustable baffle plate is used, the frame body is fixedly arranged in the two-compartment machine tool, the pump shell is placed on the lifting seat 9, the position of the adjustable baffle plate 902 is adjusted forwards, the front side of the pump shell is aligned with the side of the lifting seat 9, the lock catch 904 is jacked up through a bolt, and the pump body is fixed by the inner side of the lock catch 904; rotating the jacking screw 805, pulling out the double-end shaft bracket 803 by the transmission of the jacking screw 805, and pulling up the jacking screw 805 and the sliding seat through the connecting rod 802 to lift up the lifting seat 9 to a position convenient for machining by the mechanical arm; starting the motor 701, driving the worm wheel 602 to rotate by the motor 701 through the worm 702, further rotating the lump wheel 501 and the gear 502, and moving the moving device 4 in the rack 3 through meshing, so as to move the position of the pump body for adjustment; in the moving process of the pump body, the connecting rod 10 is continuously contacted with the metal layer in the power-on chute 1101 through the outer metal pulley 1001 and the inner metal pulley 1002 to continuously provide three-phase power supply for the motor 701, so that the normal operation of the moving function of the frame body can be ensured; the length of the rack body 1, the top frame 2 and the rack frame 3 can be adjusted according to the internal space of a machine tool, the number of the moving devices 4 and the transmission devices 6 can be increased according to needs, and the positioning of multiple groups of pump casings is synchronously completed.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a motor pump casing casting equipment's biax axis equipment support body which characterized in that: comprises a frame body (1); the bottom of the frame body (1) is of a connected frame structure; the two sides of the frame body (1) are uniformly arranged into staggered triangular frame bodies, and the top of the frame body (1) is fixedly provided with a top frame (2) through an upright post; two groups of rack frames (3) are fixedly arranged in the two sides of the top frame (2) through bolts; two groups of moving devices (4) are arranged in the rack frame (3) in a sliding manner; two groups of transmission shafts (5) are rotatably arranged at the bottom of the mobile device (4); a transmission device (6) is rotatably arranged in the middle of the transmission shaft (5); the top of the transmission device (6) is fixedly provided with a motor base (7) through a bolt; four groups of connecting rods (10) are fixedly arranged at the top of the motor base (7); the bottom of the transmission device (6) is fixedly provided with a vertical rod (8); two groups of lifting seats (9) are arranged on two sides of the bottom of the upright rod (8) in a sliding manner; a three-phase electric plate (11) is fixedly arranged on the connecting rod (10) at the bottom of the top frame (2);

the connecting rod (10) further comprises an outer metal pulley (1001) and an inner metal pulley (1002); the three-phase electric plate (11) further comprises a power-on sliding groove (1101); two groups of outer metal pulleys (1001) are rotatably arranged on the outer side of the top of the connecting rod (10) through a rotating shaft; an inner metal pulley (1002) is rotatably arranged in the middle of the top of the connecting rod (10) through a rotating shaft; four groups of electrifying chutes (1101) are formed in the bottom of the three-phase electric plate (11), the electrifying chutes (1101) are all T-shaped grooves, and metal layers are arranged on the inner sides of the electrifying chutes (1101); the outer metal pulley (1001) and the inner metal pulley (1002) are arranged in the electrifying chute (1101) in a sliding mode, the outer metal pulley (1001) is in contact with the bottoms of the two sides of the electrifying chute (1101), and the inner metal pulley (1002) is in contact with the tops of the two sides of the electrifying chute (1101); the outer metal pulley (1001) and the inner metal pulley (1002) both have rotating shafts which penetrate through the connecting rod (10) and are provided with circuits, and the rotating shafts penetrate out of one side of the bottom of the connecting rod (10); three groups of metal layers in the electrifying sliding groove (1101) are connected with a three-phase live wire, and one group of metal layers in the electrifying sliding groove (1101) is connected with a return circuit zero wire.

2. The dual-axis equipment frame body of motor pump casing casting equipment of claim 1, characterized in that: the rack frame (3) also comprises a wheel rail (301) and a V-shaped groove (302); the bottom of each rack (3) is provided with a wheel rail (301), and the middle of the inner side of each wheel rail (301) is provided with a V-shaped groove (302); the bottom parts of two sides of the rack frame (3) are both arranged to be rack structures.

3. The dual-axis equipment frame body of motor pump casing casting equipment of claim 1, characterized in that: the mobile device (4) further comprises a top seat (401), a top wheel (402) and a connecting vertical plate (403); the top of the mobile device (4) is fixedly provided with a top seat (401) through a bolt, and the middle of the top seat (401) is provided with a top wheel (402) through a rotating shaft; the two sides of the moving device (4) and the two sides of the transmission device (6) are fixedly connected through connecting vertical plates (403) arranged on bolts; the transmission shaft (5) further comprises a lump wheel (501) and a gear (502); the two ends of the transmission shaft (5) are positioned in the middle of the mobile device (4) and are fixedly provided with lump wheels (501) through key connection, and the middles of the lump wheels (501) are matched with the V-shaped grooves (302); lump wheel (501) both sides all are fixed and are provided with gear (502), and gear (502) all with rack (3) both sides bottom meshing.

4. The dual-axis equipment frame body of motor pump casing casting equipment of claim 1, characterized in that: the transmission device (6) also comprises a vertical rod seat (601) and a worm wheel (602); the bottom of the transmission device (6) is fixedly provided with a vertical rod seat (601) through a bolt, and a vertical rod (8) is fixed in the middle of the bottom of the vertical rod seat (601); and worm gears (602) are fixedly arranged at the middle of the transmission device (6) of the transmission shaft (5).

5. The dual-axis equipment frame body of motor pump casing casting equipment of claim 1, characterized in that: the motor base (7) also comprises a motor (701) and a worm (702); a motor (701) is fixedly arranged on the outer side of the motor base (7) through a bolt; a worm (702) is movably arranged on the inner side of the motor (701) through a coupler, and the worm (702) is rotatably arranged in the transmission device (6) through a bearing; two sets of worms (702) are axially arranged, and the worms (702) are respectively in motion connection with the two sets of worm wheels (602).

6. The dual-axis equipment frame body of motor pump casing casting equipment of claim 1, characterized in that: the upright rod (8) further comprises a shaft bracket (801), a connecting rod (802), a double-end shaft bracket (803), a guide rod (804) and a jacking screw rod (805); shaft brackets (801) are fixedly arranged at the bottoms of the two sides of the vertical rod seat (601), and connecting rods (802) are rotatably arranged in the shaft brackets (801) through rotating shafts; the other end of each connecting rod (802) is rotatably provided with a double-end shaft bracket (803) through a rotating shaft, and the bottoms of the double-end shaft brackets (803) are connected with a lifting seat (9) through the connecting rods (802); guide rods (804) are fixedly arranged on two sides of the vertical rod (8), and the lifting seats (9) are arranged outside the guide rods (804) in a sliding manner; the guide rods (804) are all provided with sliding seats in a sliding mode, jacking screws (805) are arranged in the sliding seats in a rotating mode through bearings, and the jacking screws (805) are movably connected with the double-head shaft frame (803).

7. The dual-axis equipment frame body of motor pump casing casting equipment of claim 1, characterized in that: the lifting seat (9) also comprises a round guide rail (901), an adjustable baffle (902), a baffle sliding block (903) and a lock catch (904); the bottom of the lifting seat (9) is of a triangular ladder-shaped structure; round guide rails (901) are uniformly arranged on two sides of the top of the lifting seat (9); baffle sliding blocks (903) are uniformly arranged at the bottoms of the two sides of the adjustable baffle (902), the baffle sliding blocks (903) are arranged at the tops of the circular guide rails (901) in a sliding mode, and jackscrews are arranged on the inner sides of the baffle sliding blocks (903); the front sides of the lifting seats (9) are respectively provided with a lock catch (904) in a rotating manner through hinged connection; the rear sides of the lock catches (904) are respectively provided with a screw in a rotating mode.