CN108836128A - A kind of smokeless environment-friendly bilayer oven - Google Patents

Abstract

The invention discloses a smokeless and environment-friendly double-layer barbecue oven, which comprises a base and a furnace body placed on the top of the base. Support plates are fixedly installed on both sides of the base. Position slot, the limit block is slidably installed in the limit slot, and the side of the two limit blocks close to each other is fixedly installed with a connecting plate, the furnace body is located between the two connecting plates, and the bottom of the two connecting plates are connected to the The top of the base is in contact with each other, and the two connecting plates are located between the two supporting plates, a groove is opened at the bottom of the connecting plate, and a fixing block is fixedly installed in the groove, and two through holes are opened on the top of the base. Holes, and lead screws are installed in the two through holes. The invention is convenient for adjusting the height of the furnace body, so as to adapt to users of different heights, and at the same time, it is convenient for turning over the furnace body and cleaning sundries in the furnace body, and has a simple structure and convenient use.

Description

A smokeless and environmentally friendly double-layer barbecue oven

technical field

The invention relates to the technical field of barbecue ovens, in particular to a smokeless and environment-friendly double-layer barbecue oven.

Background technique

Barbecue oven is a kind of barbecue equipment, which can be used to make grilled food such as lamb kebabs and barbecue. Barbecue ovens can be divided into three types: charcoal ovens, gas ovens and electric ovens. Oily fume and no pollution to the product are very popular. Common types of barbecue stoves on the market include apple stoves, rectangular stoves, portable stoves, etc. After retrieval, the patent document with application number 201720023676.1 discloses a smokeless and environmentally friendly double-layer barbecue Furnace, its structure includes power line, furnace body, baking pan, control panel, partition plate, heating device, grilling net, seasoning tank ring, recovery tray, the power line is set on the side of the furnace body, and the baking pan is set On the right side above the furnace body, the control panel is arranged in front of the furnace body, the partition plate is arranged in the middle above the furnace body, the heating device is arranged inside the furnace body, and the grilling net is arranged on the left side above the furnace body , the supporting ring of the seasoning tank is set on the side of the recovery tray, the power cord is provided with a plug, and the plug is fixedly connected with the power cord, the baking pan is provided with a baking pan oil tank, and the baking pan oil tank is arranged on the baking pan On the surface, the control panel is provided with control knobs, knob scales, working indicator lights, and standby indicator lights. A smokeless and environmentally friendly double-layer barbecue oven of the present invention is provided with a grill pan oil tank to facilitate the collection of barbecue ovens. Discarded cooking oil and seasonings, but this kind of grill is not easy to adjust the height according to the height of the user, and it is very inconvenient to use. Therefore, we propose a smoke-free and environmentally friendly double-layer grill to solve the above problems.

Contents of the invention

Based on the technical problems existing in the background technology, the present invention proposes a smokeless and environmentally friendly double-layer barbecue oven.

A smokeless and environmentally friendly double-layer barbecue oven proposed by the present invention includes a base and a furnace body placed on the top of the base. Support plates are fixedly installed on both sides of the base. Position slot, the limit block is slidably installed in the limit slot, the side of the two limit blocks close to each other is fixedly installed with a connecting plate, the furnace body is located between the two connecting plates, and the bottoms of the two connecting plates are connected to the The top of the base is in contact with each other, and the two connecting plates are located between the two supporting plates, a groove is opened at the bottom of the connecting plate, and a fixing block is fixedly installed in the groove, and two through holes are opened on the top of the base. The two through holes are equipped with lead screws, the tops of the two lead screws are respectively in contact with the top inner walls of the two grooves, and the two lead screws are respectively threaded with the two fixed blocks. There is a first installation cavity, and the two through holes are connected with the first installation cavity. The bottom ends of the two lead screws extend into the first installation cavity. two rotating rods, the tops of the two rotating rods are respectively welded to the bottoms of the two lead screws, and the first bevel gears located in the first installation cavity are fixedly sleeved on the two rotating rods, and the first installation cavity There are two installation blocks fixedly installed in the cavity, and the two installation blocks are located between the two rotating rods. The installation blocks are provided with installation holes, and the same installation rod is installed in rotation in the two installation holes. The installation rod The two ends of both ends are fixedly installed with the second bevel gear, and the two installation blocks are located between the two second bevel gears, the two first bevel gears mesh with the two second bevel gears respectively, and the two The sides of the connecting plates close to each other are provided with rotating grooves, and the rotating shafts are installed in the two rotating grooves, and the connecting plates are fixedly installed on the sides of the two rotating shafts close to each other. They are respectively fixedly connected to both sides of the furnace body. The first sprocket is fixedly sleeved on the rotating shaft, and the first chain is engaged on the first sprocket. A rotating groove is provided on the bottom inner wall of the rotating groove. A shaft rod is rotatably installed in the groove, and a second sprocket is fixedly sleeved on the shaft rod, and the first sprocket is connected to the corresponding second sprocket through the first chain.

Preferably, a second installation cavity located below the first installation cavity is opened on the base, and a rotating rod is rotatably installed in the second installation cavity.

Preferably, two third sprockets are fixedly sleeved on the installation rod, and the two third sprockets are located between the two installation blocks, and the second chains are engaged on the two third sprockets, and the rotation The rod is fixedly sleeved with two fourth sprockets, and the two third sprockets are connected to the two fourth sprockets through two second chains.

Preferably, a first installation groove is opened on one side of the inner wall of the second installation cavity, and a first rotating motor is fixedly installed on the inner wall of the first installation groove away from the opening of the first installation groove, and the output of the first rotating motor The shaft is fixedly connected with one end of the rotating rod.

Preferably, a second installation groove is provided on the inner wall of the side where the two rotation grooves are far away from each other, and a second rotating motor is fixedly installed in the second installation groove, and the output shafts of the two second rotating motors are connected to the two shafts respectively. The ends of the rods which are far away from each other are fixedly connected.

Preferably, a moving groove is provided on the sides where the two connecting plates are close to each other, and a moving plate is slidably installed in the moving groove, and a block is fixedly installed on the sides where the two moving plates are close to each other. There are card slots, and the two card blocks are respectively engaged with the two card slots. The tops of the two connecting plates are provided with through holes, and the tops of the two moving plates respectively pass through the two through holes and extend to the corresponding connecting plates. above.

Preferably, a first bearing is fixedly installed in the through hole, and the outer side of the lead screw is fixedly connected with the inner ring of the first bearing.

Preferably, a second bearing is provided in the installation hole, the outer ring of the second bearing is fixedly connected to the inner wall of the installation hole, and the outer side of the installation rod is fixedly connected to the inner rings of the two second bearings.

The beneficial effects of the present invention are:

(1), through the furnace body, support plate, limit groove, limit block, connecting plate, fixed block, lead screw, rotating rod, first bevel gear, mounting block, mounting rod, second bevel gear, rotating The rod, the fourth sprocket, the second chain, the third sprocket and the first rotating motor cooperate to drive the rotating rod to rotate through the first rotating motor, and to drive the two fourth sprockets to rotate through the rotating rod. The fourth sprocket and the two second chains drive the two third sprockets to rotate, the two third sprockets drive the installation rod to rotate, the installation rod drives the two second bevel gears to rotate, and the two second bevel gears to rotate through the two third sprockets The second bevel gear drives the two first bevel gears to rotate, the two first bevel gears drive the two rotating rods to rotate, the two rotating rods drive the two lead screws to rotate, and the two lead screws Drive the two fixed blocks to move, drive the two connecting plates to move through the two fixed blocks, and drive the furnace body to move in the vertical direction through the two connecting plates, so as to adjust the use height of the furnace body;

(2) Through the cooperation of the rotating shaft, the connecting plate, the first sprocket, the first chain, the second sprocket, the second rotating motor and the shaft, the second rotating motor drives the shaft to rotate, and the shaft drives The second sprocket rotates, drives the first sprocket to rotate through the second sprocket and the first chain, drives the rotating shaft to rotate through the first sprocket, drives the connecting plate to rotate through the rotating shaft, and drives the furnace body through the connecting plate to flip;

The invention is convenient for adjusting the height of the furnace body, so as to adapt to users of different heights, and at the same time, it is convenient for turning over the furnace body and cleaning sundries in the furnace body, and has a simple structure and convenient use.

Description of drawings

Fig. 1 is the structural representation of a kind of smokeless environmental protection double-deck grill that the present invention proposes;

Fig. 2 is the schematic structural view of part A of a kind of smokeless environment-friendly double-layer grill proposed by the present invention;

Fig. 3 is the schematic structural view of part B of a kind of smokeless environmental protection double-layer barbecue oven proposed by the present invention;

Fig. 4 is the structural representation of part C of a kind of smokeless environment-friendly double-layer barbecue oven proposed by the present invention;

Fig. 5 is a top view structural diagram of the connection between the fixed block and the lead screw of a smokeless and environmentally friendly double-layer barbecue proposed by the present invention.

In the figure: 1 base, 2 furnace body, 3 supporting plate, 4 limiting slot, 5 limiting block, 6 connecting plate, 7 groove, 8 fixing block, 9 through hole, 10 lead screw, 11 first installation cavity, 12 rotating rod, 13 first bevel gear, 14 mounting block, 15 mounting hole, 16 mounting rod, 17 second bevel gear, 18 second mounting chamber, 19 rotating rod, 20 fourth sprocket, 21 second chain , 22 the third sprocket, 23 the first installation slot, 24 the first rotating motor, 25 the turning slot, 26 the turning shaft, 27 the connection disc, 28 the first sprocket, 29 the first chain, 30 the turning groove, 31 the second Sprocket, 32 second mounting slots, 33 second rotating motors, 34 shaft rods.

Detailed ways

The present invention will be further explained below in conjunction with specific embodiments.

Example

Referring to Figures 1-5, this embodiment proposes a smokeless and environmentally friendly double-layer barbecue oven, which includes a base 1 and a furnace body 2 placed on the top of the base 1. Support plates 3 are fixedly installed on both sides of the base 1. The sides of the two support plates 3 close to each other are all provided with limiting grooves 4, and the limiting blocks 5 are slidably installed in the limiting grooves 4, and the connecting plates 6 are fixedly installed on the sides of the two limiting blocks 5 close to each other, and the furnace body 2 Located between two connecting plates 6, the bottoms of the two connecting plates 6 are in contact with the top of the base 1, and the two connecting plates 6 are located between the two supporting plates 3, and the bottom of the connecting plates 6 is provided with a groove 7. A fixed block 8 is fixedly installed in the groove 7, and two through holes 9 are provided on the top of the base 1, and a lead screw 10 is rotatably installed in the two through holes 9, and the tops of the two lead screws 10 are respectively connected with the two The top inner wall of the groove 7 is in contact with each other, and the two lead screws 10 are screwed to the two fixing blocks 8 respectively. The base 1 is provided with a first installation cavity 11, and the two through holes 9 are connected to the first installation cavity 11. , the bottom ends of the two lead screws 10 all extend into the first installation cavity 11, and the bottom inner wall of the first installation cavity 11 is rotatably installed with two rotation rods 12, and the tops of the two rotation rods 12 are connected with the two lead screws respectively. The bottoms of 10 are welded together, and the first bevel gear 13 located in the first installation cavity 11 is fixedly sleeved on the two rotating rods 12, and two installation blocks 14 are fixedly installed in the first installation cavity 11, two The mounting blocks 14 are all located between the two rotating rods 12, and the mounting blocks 14 are provided with mounting holes 15, and the same mounting rod 16 is installed in rotation in the two mounting holes 15, and the two ends of the mounting rod 16 are fixedly installed with a second Bevel gear 17, two mounting blocks 14 are all located between two second bevel gears 17, two first bevel gears 13 mesh with two second bevel gears 17 respectively, two connecting plates 6 mutually The side close to each other is provided with a rotation groove 25, and a rotation shaft 26 is installed in rotation in the two rotation grooves 25, and a connection disc 27 is fixedly installed on the side where the two rotation shafts 26 are close to each other, and the two connection discs 27 are close to each other. One side of one side is fixedly connected with the both sides of furnace body 2 respectively, and the first sprocket 28 is fixedly sleeved on the rotating shaft 26, and the first chain 29 is meshed on the first sprocket 28, and the bottom inner wall of the rotating groove 25 is provided with Rotate the groove 30, the shaft rod 34 is installed in the rotation groove 30, the second sprocket 31 is fixedly sleeved on the shaft rod 34, the first sprocket 28 is driven by the first chain 29 and the corresponding second sprocket 31 Connection, through furnace body 2, support plate 3, limit groove 4, limit block 5, connecting plate 6, fixed block 8, lead screw 10, rotating rod 12, first bevel gear 13, mounting block 14, mounting rod 16. The second bevel gear 17, the rotating rod 19, the fourth sprocket 20, the second chain 21, the third sprocket 22 and the first rotating motor 24 cooperate to drive the rotating rod 19 to rotate through the first rotating motor 24 , the two fourth sprockets 20 are driven to rotate through the rotating rod 19, the two third sprockets 22 are driven to rotate through the two fourth sprockets 20 and the two second chains 21, and the two third sprockets 22 are driven to rotate Drive installation rod 16 to rotate Rotate, drive two second bevel gears 17 to rotate by mounting rod 16, drive two first bevel gears 13 to rotate by two second bevel gears 17, drive two by two first bevel gears 13 Two rotating rods 12 are rotated, and two lead screws 10 are driven to rotate by two rotating rods 12, two fixed blocks 8 are driven by two lead screws 10 to move, and two connecting plates 6 are driven by two fixed blocks 8 to carry out Move, drive the furnace body 2 to move in the vertical direction through two connecting plates 6, thereby adjust the use height of the furnace body 2, through the rotating shaft 26, the connecting disc 27, the first sprocket wheel 28, the first chain 29, The second sprocket 31, the second rotating motor 33 and the shaft rod 34 are matched, the second rotating motor 33 drives the shaft rod 34 to rotate, the shaft rod 34 drives the second sprocket wheel 31 to rotate, and the second sprocket wheel 31 And the first chain 29 drives the first sprocket wheel 28 to rotate, the first sprocket wheel 28 drives the rotating shaft 26 to rotate, the rotating shaft 26 drives the connecting plate 27 to rotate, and the connecting plate 27 drives the furnace body 2 to turn over. The invention is convenient to adjust the height of the furnace body 2 to adapt to users of different heights, and at the same time, it is convenient to turn over the furnace body 2 and clean up sundries in the furnace body 2, and has a simple structure and is convenient to use.

In this embodiment, the base 1 is provided with a second installation cavity 18 located below the first installation cavity 11, and a rotary rod 19 is installed in rotation in the second installation cavity 18, and two third chains are fixedly sleeved on the installation rod 16. Wheel 22, the two third sprockets 22 are located between the two installation blocks 14, and the second chains 21 are engaged on the two third sprockets 22, and the rotating rod 19 is fixedly sleeved with two fourth chains wheel 20, the two third sprockets 22 are transmission-connected with the two fourth sprockets 20 respectively through two second chains 21, and a first installation groove 23 is opened on one side inner wall of the second installation cavity 18, and the first installation The first rotating motor 24 is fixedly installed on the inner wall of the groove 23 away from the opening of the first installation groove 23, the output shaft of the first rotating motor 24 is fixedly connected with one end of the rotating rod 19, and the two rotating grooves 30 are far away from each other. A second mounting groove 32 is opened on the side inner wall, and a second rotating motor 33 is fixedly installed in the second mounting groove 32, and the output shafts of the two second rotating motors 33 are respectively fixedly connected to the ends of the two shaft rods 34 that are far away from each other. , the sides of the two connecting plates 6 that are close to each other are provided with moving grooves, the moving plates are slidably installed in the moving grooves, the sides of the two moving plates that are close to each other are fixedly installed with blocks, and both sides of the furnace body 2 are provided with There are card slots, and the two card blocks are respectively engaged with the two card slots. The tops of the two connecting plates 6 are provided with through holes, and the tops of the two moving plates respectively pass through the two through holes and extend to the corresponding connecting plates. 6, the first bearing is fixedly installed in the through hole 9, the outer side of the screw 10 is fixedly connected with the inner ring of the first bearing, the second bearing is arranged in the mounting hole 15, and the outer ring of the second bearing is connected with the mounting hole 15 The inner wall of the mounting rod 16 is fixedly connected to the inner ring of the two second bearings, through the furnace body 2, the support plate 3, the limit groove 4, the limit block 5, the connecting plate 6, the fixed block 8, the wire Bar 10, rotating rod 12, first bevel gear 13, mounting block 14, mounting rod 16, second bevel gear 17, rotating rod 19, the 4th chain wheel 20, the 2nd chain 21, the 3rd chain wheel 22 and The first rotating motor 24 cooperates, drives the rotating rod 19 to rotate by the first rotating motor 24, drives the two fourth sprockets 20 to rotate by the rotating rod 19, and rotates by the two fourth sprockets 20 and the two second chains. 21 drives the two third sprockets 22 to rotate, the two third sprockets 22 drive the installation rod 16 to rotate, the installation rod 16 drives the two second bevel gears 17 to rotate, and the two second bevel gears 17 to rotate Gear 17 drives two first bevel gears 13 to rotate, drives two rotating rods 12 to rotate by two first bevel gears 13, drives two lead screws 10 to rotate by two rotating rods 12, rotates by two Lead screw 10 drives two fixed blocks 8 to move, drives two connecting plates 6 to move through two fixed blocks 8, and drives body of furnace 2 to move in the vertical direction through two connecting plates 6, thereby the furnace body 2 Use the height to adjust, through the rotating shaft 26, the connecting plate 27, the first sprocket 28, the first chain 29, the second sprocket 31, the second rotating motor 33 and the shaft 34, the second rotating motor 33 drives the shaft 34 to rotate, the shaft 34 drives the second sprocket 31 to rotate, and the second sprocket 31 and the first chain 29 drive the first sprocket 28 to rotate, The first sprocket 28 drives the rotating shaft 26 to rotate, the rotating shaft 26 drives the connecting plate 27 to rotate, and the connecting plate 27 drives the body of furnace 2 to turn over. The present invention is convenient for adjusting the height of the body of furnace 2, so as to adapt to It is convenient for users of different heights to turn over the furnace body 2 and to clean up sundries in the furnace body 2. The structure is simple and easy to use.

In this embodiment, when in use, the first rotating motor 24 drives the rotating rod 19 to rotate, the rotating rod 19 drives the two fourth sprockets 20 to rotate, and the two fourth sprockets 20 and the two second chains 21 drives the two third sprockets 22 to rotate, drives the installation rod 16 to rotate through the two third sprockets 22, drives the two second bevel gears 17 to rotate through the installation rod 16, and rotates through the two second conical gears Gear 17 drives two first bevel gears 13 to rotate, drives two rotating rods 12 to rotate by two first bevel gears 13, drives two lead screws 10 to rotate by two rotating rods 12, rotates by two Lead screw 10 drives two fixed blocks 8 to move, drives two connecting plates 6 to move through two fixed blocks 8, and drives body of furnace 2 to move in the vertical direction through two connecting plates 6, thereby the furnace body 2 The use height is adjusted. When the furnace body 2 is used, the second rotating motor 33 drives the shaft 34 to rotate, the shaft 34 drives the second sprocket 31 to rotate, and the second sprocket 31 and the first chain 29 Drive the first sprocket wheel 28 to rotate, drive the rotating shaft 26 to rotate by the first sprocket wheel 28, drive the connecting disc 27 to rotate by the rotating shaft 26, and drive the body of furnace 2 to turn over by the connecting disc 27, so that the body of furnace 2 can be turned Pour out the debris inside.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, any person familiar with the technical field within the technical scope disclosed in the present invention, according to the technical solution of the present invention Any equivalent replacement or change of the inventive concepts thereof shall fall within the protection scope of the present invention.

Claims (8)

1. A smokeless and environmentally friendly double-layer barbecue oven, comprising a base (1) and a furnace body (2) placed on the top of the base (1), characterized in that both sides of the base (1) are fixedly installed with supports plate (3), the sides of the two supporting plates (3) close to each other are provided with a limit slot (4), and the limit block (5) is slidably installed in the limit slot (4), and the two limit blocks ( 5) The connecting plates (6) are fixedly installed on the sides close to each other, the furnace body (2) is located between the two connecting plates (6), and the bottoms of the two connecting plates (6) are connected to the top of the base (1). contact, and the two connecting plates (6) are located between the two supporting plates (3), the bottom of the connecting plate (6) is provided with a groove (7), and the groove (7) is fixedly installed with a fixed Block (8), the top of the base (1) is provided with two through holes (9), the two through holes (9) are installed with screw (10), the top of the two screw (10) They are respectively in contact with the top inner walls of the two grooves (7), and the two lead screws (10) are respectively threaded with the two fixing blocks (8), and the base (1) is provided with a first installation cavity (11 ), the two through holes (9) communicate with the first installation cavity (11), the bottom ends of the two lead screws (10) extend into the first installation cavity (11), and the first installation cavity ( 11) There are two rotating rods (12) installed on the bottom inner wall, the tops of the two rotating rods (12) are respectively welded to the bottoms of the two lead screws (10), and the two rotating rods (12) are The fixed sleeve is provided with a first bevel gear (13) located in the first installation cavity (11), and two installation blocks (14) are fixedly installed in the first installation cavity (11), and the two installation blocks (14 ) are located between the two rotating rods (12), the mounting block (14) is provided with a mounting hole (15), and the same mounting rod (16) is installed in the two mounting holes (15) for rotation, the said The two ends of the installation rod (16) are fixedly installed with the second bevel gear (17), the two installation blocks (14) are located between the two second bevel gears (17), the two first bevel gears (13) Mesh with the two second bevel gears (17) respectively, and the sides of the two connecting plates (6) close to each other are provided with rotating grooves (25), and the two rotating grooves (25) are rotated and installed Rotating shaft (26) is arranged, and the side of two rotating shafts (26) close to each other is all fixedly installed with connection disk (27), and the side of two connection disks (27) close to each other is respectively connected with the two sides of furnace body (2). The side is fixedly connected, the first sprocket (28) is fixedly sleeved on the rotating shaft (26), the first chain (29) is engaged on the first sprocket (28), and the bottom inner wall of the rotating groove (25) A rotation groove (30) is provided, and a shaft rod (34) is installed for rotation in the rotation groove (30). The shaft rod (34) is fixedly sleeved with a second sprocket (31), and the first sprocket ( 28) Drive connection with the corresponding second sprocket (31) through the first chain (29). 2. A smokeless and environmentally friendly double-layer barbecue oven according to claim 1, characterized in that, the base (1) is provided with a second installation cavity (18) located below the first installation cavity (11), A rotating rod (19) is rotatably installed in the second installation cavity (18). 3. A smokeless and environmentally friendly double-layer barbecue oven according to claim 1, characterized in that two third sprockets (22) are fixedly sleeved on the installation rod (16), and two third chains The wheels (22) are located between the two mounting blocks (14), and the second chains (21) are engaged on the two third sprockets (22), and the two third chains (21) are fixedly sleeved on the rotating rod (19). For the four sprockets (20), the two third sprockets (22) are drive-connected to the two fourth sprockets (20) respectively through the two second chains (21). 4. A smokeless and environmentally friendly double-layer barbecue oven according to claim 2, characterized in that a first installation groove (23) is opened on one side of the inner wall of the second installation cavity (18), and the first installation A first rotating motor (24) is fixedly installed on the inner wall of the groove (23) away from the opening of the first mounting groove (23), and the output shaft of the first rotating motor (24) is fixedly connected to one end of the rotating rod (19). 5. A smoke-free and environmentally friendly double-layer barbecue oven according to claim 1, characterized in that, the inner wall of the side where the two rotating grooves (30) are far away from each other is provided with a second installation groove (32). A second rotating motor (33) is fixedly installed in the second installation slot (32), and the output shafts of the two second rotating motors (33) are respectively fixedly connected to the ends of the two shaft rods (34) that are far away from each other. 6. A smoke-free and environmentally friendly double-layer barbecue oven according to claim 1, characterized in that, the sides of the two connecting plates (6) close to each other are provided with moving grooves, and a moving plate is slidably installed in the moving grooves, The sides of the two moving plates close to each other are fixedly installed with clamping blocks, and both sides of the furnace body (2) are provided with clamping slots, the two clamping blocks are respectively clamped with the two clamping slots, and the two connecting plates (6 ) are provided with through holes, and the tops of the two moving plates respectively pass through the two through holes and extend to the top of the corresponding connecting plate (6). 7. A smokeless and environmentally friendly double-layer barbecue oven according to claim 1, characterized in that, the first bearing is fixedly installed in the through hole (9), and the outer side of the lead screw (10) and the first bearing The inner ring is fixedly connected. 8. A smokeless and environmentally friendly double-layer barbecue oven according to claim 1, characterized in that, the second bearing is arranged in the installation hole (15), and the outer ring of the second bearing and the installation hole (15) The inner wall is fixedly connected, and the outer side of the mounting rod (16) is fixedly connected with the inner rings of the two second bearings.