CN214974296U

CN214974296U - Civil engineering construction waste treatment device

Info

Publication number: CN214974296U
Application number: CN202121309095.7U
Authority: CN
Inventors: 刘泱黎
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-11
Filing date: 2021-06-11
Publication date: 2021-12-03
Anticipated expiration: 2031-06-11

Abstract

The utility model discloses a civil engineering construction waste material processing apparatus relates to waste material processing technology field. The technical key points are as follows: the base, base one side is equipped with the screening case, screening case one side is equipped with first motor, first motor output end fixedly connected with threaded rod, the threaded rod cover is equipped with places the frame, it is equipped with dead lever and both sliding connection to place the frame insert, the dead lever is close to the first slider of base one side fixedly connected with, the spout has been seted up to the base, the screening case is connected with first belt pulley, first belt pulley rotates with the base to be connected, base fixedly connected with second motor, second motor fixedly connected with second belt pulley, first belt pulley passes through the belt with the second belt pulley and is connected, first motor one side is equipped with reducing mechanism, be equipped with ejection of compact subassembly in the reducing mechanism. The utility model has the advantages of can realize that timber in the construction waste and earth screen, carry out abundant smashing with the construction waste afterwards with the unloading, improve the reuse rate of resource.

Description

Civil engineering construction waste treatment device

Technical Field

The utility model relates to a waste material processing technology field specifically is a civil engineering construction waste material processing apparatus.

Background

Construction waste is solid waste generated during the process of building construction, reconstruction, extension or demolition. According to different generation sources of the construction waste, the construction waste and the demolished construction waste can be divided. The construction waste is solid waste generated in new construction, reconstruction or extension projects, and the demolition construction waste is construction waste generated in demolition and demolition of buildings.

When the construction waste is collected, the wood is not taken out one by one, and is collected together, and certain dust is also carried, so that the waste of the wood is caused.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a civil engineering construction waste material processing apparatus, its advantage that has: the base is arranged to provide support for the whole device, the screening box is arranged to distinguish wood in the building waste, so that wood which can be recycled can be selected, resources are saved, the first motor and the threaded rod are arranged to control the placing frame, so that the placing frame can be lifted, the fixed rod is arranged to limit the movement of the placing frame, so that the placing frame only does lifting movement, the first sliding block and the sliding chute are arranged to take the placing frame away from the screening box, so that the placing frame is convenient to convey the building waste into the crushing device, the second motor, the first belt pulley, the second belt pulley and the belt are arranged to drive the screening box to rotate, so that the wood and soil of the building waste can be distinguished more sufficiently, and the crushing device is arranged to crush the treated building waste, in order to carry out process next step, ejection of compact subassembly set up in order to prevent to block up and pile up, through above-mentioned structure, can realize that timber in the construction waste and earth screen, carry out abundant crushing and unloading with construction waste afterwards, improve the reuse rate of resource.

The above object of the present invention can be achieved by the following technical solutions:

a civil engineering construction waste treatment device comprises a base, wherein one side of the base is provided with a screening box, one side of the screening box is provided with a first motor, the first motor is rotationally connected with the base, the axis of the output shaft of the first motor is vertically arranged, the output end of the first motor is fixedly connected with a threaded rod, the threaded rod is sleeved with a placing frame, the placing frame is connected with the threaded rod, a fixed rod is inserted into the placing frame and is slidably connected with the placing frame, the fixed rod is fixedly connected with a first sliding block close to one side of the base, the base is provided with a sliding groove, the first sliding block is slidably connected with the sliding groove, one side of the screening box close to the base is fixedly connected with a first belt pulley, the first belt pulley is rotationally connected with the base, the base is fixedly connected with a second motor, and the second motor is fixedly connected with a second belt pulley, the first belt pulley with the second belt pulley passes through the belt and is connected, first motor one side is equipped with reducing mechanism, be equipped with ejection of compact subassembly in the reducing mechanism.

By adopting the technical scheme, the base is arranged to provide support for the whole device, the screening box is arranged to distinguish wood in the construction waste so as to select wood which can be recycled, resources are saved, the first motor and the threaded rod are arranged to control the placing frame so as to lift the placing frame, the fixed rod is arranged to limit the movement of the placing frame so as to only do lifting movement, the first slider and the sliding chute are arranged to take the placing frame away from the screening box so as to facilitate the placing frame to send the construction waste into the crushing device, the second motor, the first belt pulley, the second belt pulley and the belt are arranged to drive the screening box to rotate so as to more fully distinguish the wood and the soil of the construction waste, the crushing device is arranged to crush the treated construction waste, in order to carry out process next step, ejection of compact subassembly set up in order to prevent to block up and pile up, through above-mentioned structure, can realize that timber in the construction waste and earth screen, carry out abundant crushing and unloading with construction waste afterwards, improve the reuse rate of resource.

The present invention may be further configured in a preferred embodiment as: the placing frame comprises a frame body and a first baffle, the frame body is in threaded connection with the threaded rod, the frame body is in sliding connection with the fixed rod, the first baffle is hinged to one side, close to the base, of the placing frame, the frame body is far away from a first air cylinder fixedly connected to one side of a hinged shaft of the first baffle, the axis of an output shaft of the first air cylinder is vertically and horizontally arranged, an inserting rod is fixedly connected to the output end of the first air cylinder, an inserting groove is formed in one end, close to the inserting rod, of the first baffle, and a plurality of filtering holes are formed in the placing frame.

Through adopting above-mentioned technical scheme, the setting of placing the frame is for providing the support for building waste's washing, and can throw away moisture and silt through the filtration pore of seting up, when smashing like this, the content of timber and earth can greatly reduced, the setting of first baffle is for handling in sending into reducing mechanism with the building waste after the preliminary treatment in, the setting of first cylinder and inserted bar is for the control of realization to first baffle, when the unloading, open first cylinder, first cylinder drives the inserted bar motion, make the inserted bar keep away from first baffle, the unloading is opened to first baffle, when feeding, the laminating of first baffle of manual control and framework, then open first cylinder, make first cylinder drive the inserted bar and insert in the inserting groove, make first baffle closed.

The present invention may be further configured in a preferred embodiment as: the crushing device comprises a crushing box, the crushing box is fixedly connected with the base, the crushing box is far away from a material receiving funnel fixedly connected with one side of the base, a first crushing assembly is arranged in the crushing box and comprises a plurality of first rollers parallel to each other, the first rollers are horizontally arranged and are arranged in a plurality of modes, the two ends of the first rollers are connected and connected with the inner side wall of the crushing box in a rotating mode, the first rollers are arranged on the same side of the crushing box in a sleeved mode, a first gear fixedly connected with is arranged on the first rollers in an meshed mode, the first gears are arranged on the edges in an meshed mode, a second gear is arranged on the first gears in a meshed mode, a third motor is fixedly connected with the third gear, the third motor is fixedly connected with the inner side wall of the crushing box, and the first crushing assembly is arranged on one side close to the ground.

Through adopting above-mentioned technical scheme, crushing case through setting up, be in order to first crushing unit, second crushing unit and ejection of compact subassembly provide the support, first crushing unit's setting is in order to carry out the primary crushing to construction waste, then carry out the secondary crushing through second crushing unit, make the kibbling more thorough of construction waste, the setting of third motor provides the power of first crushing unit motion, the motion of first gear and second gear is for transmitting the third motor, and then make first roller can smash construction waste, through the structure, can smash construction waste, be convenient for carry out the secondary use.

The present invention may be further configured in a preferred embodiment as: the second crushing assembly is arranged in the first crushing assembly box body, and the first rollers in the second crushing assembly are vertical to the first rollers in the first crushing assembly in the axial direction and are horizontally arranged.

Through adopting above-mentioned technical scheme, the setting of second crushing unit is in order to carry out abundant crushing to construction waste to first crushing unit is the same with the second crushing unit structure and is more convenient control.

The present invention may be further configured in a preferred embodiment as: the discharging assembly comprises two inclined plates, two inclined plates are fixedly connected with the inner side wall of the crushing box, two rotating wheels are arranged between the inclined plates, a plurality of second baffles are fixedly connected with the periphery of the rotating wheels, two ends of each rotating wheel are fixedly connected with the inner side wall of the crushing box in a rotating mode, one end of each rotating wheel is penetrated through one side wall of the crushing box and a fourth motor, the fourth motor is fixedly connected with the outer side wall of the crushing box, a through hole is formed in one side of the crushing box, a conveying belt is fixedly connected with a base, and one end of the conveying belt passes through the through hole and is arranged below the rotating wheel.

Through adopting above-mentioned technical scheme, discharge assembly through setting up, can be so that the even unloading of mixture after smashing, can not lead to the fact when the unloading and pile up, and then make subsequent staff promptly collect the mixture after smashing, and can not block up and cause not unloading or unloading slowly, the setting of hang plate is for more quick and abundant conveying mixture, make can not have the part to pile up in smashing the incasement, the setting of swiveling wheel and second baffle is for carrying out the unloading in batches, reduce and block up and accumulational possibility, the setting of fourth motor is for driving swivel mount and second baffle motion, realize the function of unloading in batches, the setting of conveyer belt is for carrying out crushing case with the mixture after smashing, offer next process and handle.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the base is arranged to provide support for the whole device, the screening box is arranged to distinguish wood in the building waste, so that wood which can be recycled can be selected, resources are saved, the first motor and the threaded rod are arranged to control the placing frame, so that the placing frame can be lifted, the fixed rod is arranged to limit the movement of the placing frame, so that the placing frame only does lifting movement, the first sliding block and the sliding chute are arranged to take the placing frame away from the screening box, so that the placing frame is convenient to convey the building waste into the crushing device, the second motor, the first belt pulley, the second belt pulley and the belt are arranged to drive the screening box to rotate, so that the wood and soil of the building waste can be distinguished more sufficiently, and the crushing device is arranged to crush the treated building waste, the structure can screen wood and soil in the construction waste, and then the construction waste is fully crushed and discharged, so that the recycling rate of resources is improved;

2. the building waste can be thoroughly crushed by the aid of the third motor, the first gear and the second gear are arranged to transmit movement of the third motor, and accordingly the building waste can be crushed by the first roller, and the building waste can be conveniently reused by the aid of the structure;

3. through the ejection of compact subassembly that sets up, can be so that the even unloading of mixture after smashing, can not lead to the fact when the unloading and pile up, and then make subsequent staff promptly collect the mixture after smashing, and can not block up and cause not unloading or unloading slowly, the setting of hang plate is for more quick and abundant conveying mixture, make can not have the part to pile up in smashing the incasement, the setting of swiveling wheel and second baffle is for carrying out the unloading in batches, reduce and block up and accumulational possibility, the setting of fourth motor is for driving swivel mount and second baffle motion, realize the function of unloading in batches, the setting of conveyer belt is for carrying out smashing the case with the mixture after smashing, offer next process and handle.

Drawings

Fig. 1 is a schematic view of a first view structure of the present invention.

Fig. 2 is a schematic view of a second view structure of the present invention.

Fig. 3 is a schematic view of a third view structure of the present invention.

Fig. 4 is a schematic diagram of a fourth view structure of the present invention.

Reference numerals: 1. a base; 2. a screening box; 3. a first motor; 4. a threaded rod; 5. placing the frame; 51. a frame body; 52. a first baffle plate; 53. a first cylinder; 54. inserting a rod; 6. fixing the rod; 7. a first slider; 8. a crushing device; 81. a crushing box; 82. a receiving hopper; 83. a first size reduction assembly; 831. a first roller; 832. a first gear; 833. a second gear; 834. a third motor; 84. a second size reduction assembly; 9. a first pulley; 10. a second pulley; 11. a second motor; 12. a belt; 13. a chute; 14. a discharge assembly; 141. an inclined plate; 142. a rotating wheel; 143. a fourth motor; 144. and (4) a conveyor belt.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, the civil engineering construction waste treatment device disclosed by the invention comprises a base 1, the base 1 is arranged to provide support for the whole device, a screening box 2 is arranged on one side of the base 1, the screening box 2 is arranged to distinguish wood in construction waste, so that wood which can be reused can be selected, resources are saved, a first motor 3 is arranged on one side of the screening box 2, the first motor 3 is a servo motor, the first motor 3 is rotationally connected with the base 1, the axis of the output shaft of the first motor 3 is vertically arranged, the output end of the first motor 3 is fixedly connected with a threaded rod 4, the threaded rod 4 is sleeved with a placing frame 5, the placing frame 5 is connected with the threaded rod 4, the first motor 3 and the threaded rod 4 are arranged to control the placing frame 5, so that the placing frame 5 can be lifted, the placing frame 5 is inserted with a fixing rod 6 and is connected with the fixing rod and the fixing rod, the fixed rod 6 is arranged to limit the movement of the placing frame 5, so that the placing frame 5 only does lifting movement, the fixed rod 6 is fixedly connected with a first slide block 7 at one side close to the base 1, the base 1 is provided with a chute 13, the first slide block 7 is connected with the chute 13 in a sliding manner, the first slide block 7 and the chute 13 are arranged to take the placing frame 5 away from the screening box 2, so that the placing frame 5 is convenient for feeding the construction waste into the crushing device 8, one side of the screening box 2 close to the base 1 is fixedly connected with a first belt pulley 9, the first belt pulley 9 is rotationally connected with the base 1, the base 1 is fixedly connected with a second motor 11, the second motor 11 is fixedly connected with a second belt pulley 10, the first belt pulley 9 is connected with the second belt pulley 10 through a belt 12, the second motor 11, the first belt pulley 9, the second belt pulley 10 and the belt 12 are arranged to drive the screening box 2 to rotate, make can be more for abundant timber and earth with construction waste distinguish, 3 one side of first motor is equipped with reducing mechanism 8, reducing mechanism 8's setting is for smashing the construction waste after handling, in order to carry out process on next step, be equipped with ejection of compact subassembly 14 in the reducing mechanism 8, the setting of ejection of compact subassembly 14 is for preventing to block up and pile up, through the structure, timber and earth in can realizing the construction waste screen, carry out abundant crushing and unloading with construction waste afterwards, the reuse rate of resource is improved.

Referring to fig. 1 and 2, the placing frame 5 includes a frame body 51 and a first baffle 52, the first baffle 52 is arranged to facilitate sending the building waste after the preliminary treatment into the crushing device 8 for treatment, the frame body 51 is in threaded connection with the threaded rod 4, the frame body 51 is in sliding connection with the fixing rod 6, the first baffle 52 is hinged with one side of the placing frame 5 close to the base 1, a first cylinder 53 is fixedly connected with one side of the frame body 51 far away from the hinged shaft of the frame body 51 and the first baffle 52, the axial line of the output shaft of the first cylinder 53 is vertically and horizontally arranged, the output end of the first cylinder 53 is fixedly connected with an inserting rod 54, one end of the first baffle 52 close to the inserting rod 54 is provided with an inserting groove, the first cylinder 53 and the inserting rod 54 are arranged to control the first baffle 52, when the material is discharged, the first cylinder 53 is opened, the first cylinder 53 drives the inserting rod 54 to move, so that the inserting rod 54 is far away from the first baffle 52, the unloading is opened to first baffle 52, when loading, the laminating of first baffle 52 of manual control and framework 51, then open first cylinder 53, make first cylinder 53 drive inserted bar 54 and insert the inserting groove in, make first baffle 52 closed, place frame 5 and seted up a plurality of filtration pores, the setting of placing frame 5 is for providing the support for building waste's washing, and can throw away moisture and silt through the filtration pore of seting up, like this when smashing, the content of timber and earth can greatly reduced.

Referring to fig. 1 and 3, the crushing device 8 includes a crushing box 81, the crushing box 81 is arranged to support a first crushing assembly 83, a second crushing assembly 84 and a discharging assembly 14, the crushing box 81 is fixedly connected with a base 1, a receiving hopper 82 is fixedly connected with one side of the crushing box 81 far away from the base 1, the first crushing assembly 83 is arranged in the crushing box 81, the first crushing assembly 83 is arranged to crush construction waste for the first time, then the second crushing assembly 84 is used to crush the construction waste for the second time, so that the construction waste is crushed more thoroughly, the first crushing assembly 83 includes a plurality of first rollers 831 parallel to each other, the number of the first rollers 831 is not limited, the first rollers 831 are horizontally arranged, two ends of the first rollers 831 are rotatably connected with the inner side wall of the crushing box 81, a first gear 832 is sleeved on the same side of the first rollers 831 and fixedly connected with the first gear, a plurality of first gears 832 intermeshing, it has second gear 833 to arrange a first gear 832 meshing of edge in, the setting of first gear 832 and second gear 833 is for the motion of transmission third motor 834, and then make first roller 831 can smash building waste, second gear 833 fixedly connected with third motor 834, third motor 834 and crushing case 81 inside wall fixed connection, the setting of third motor 834 provides the power of first crushing unit 83 motion, first crushing unit 83 is close to ground one side and is equipped with second crushing unit 84, through above-mentioned structure, can smash building waste, be convenient for carry out the secondary use.

Referring to fig. 3, the second crushing assembly 84 is disposed in the first crushing assembly 83, the first roller 831 of the second crushing assembly 84 is perpendicular to the first roller 831 of the first crushing assembly 83, and both are disposed horizontally, the second crushing assembly 84 is disposed to crush the construction waste sufficiently, and the first crushing assembly 83 and the second crushing assembly 84 have the same structure and are more convenient to control.

Referring to fig. 3 and 4, the discharging assembly 14 includes two inclined plates 141, the two inclined plates 141 are fixedly connected to an inner sidewall of the pulverizing box 81, the inclined plates 141 are arranged to more rapidly and sufficiently transfer the mixture so that no part of the mixture is accumulated in the pulverizing box 81, a rotating wheel 142 is disposed between the two inclined plates 141, a plurality of second baffles are fixedly connected to a peripheral side of the rotating wheel 142, the number of the second baffles is not limited, the rotating wheel 142 and the second baffles are arranged to perform batch discharging to reduce the possibility of blocking and accumulation, two ends of the rotating wheel 142 are fixedly and rotatably connected to the inner sidewall of the pulverizing box 81, one end of the rotating wheel 142 penetrates through a sidewall of the pulverizing box 81 and is fixedly connected to a fourth motor 143, the fourth motor 143 is fixedly connected to an outer sidewall of the pulverizing box 81, the fourth motor 143 is arranged to drive the rotating frame and the second baffles to move, thereby performing a batch discharging function, smash case 81 one side and seted up the through-hole, base 1 fixedly connected with conveyer belt 144, the setting of conveyer belt 144 is for carrying out crushing case 81 with the mixture after smashing, provide next process and handle, conveyer belt 144 one end is passed through the through-hole and is placed in swiveling wheel 142 below, discharge assembly 14 through the setting, can be so that the even unloading of the mixture after smashing, can not cause when the unloading to pile up, and then make subsequent staff promptly collect the mixture after smashing, and can not block up and cause not unloading or unloading slowly.

The implementation principle of the embodiment is as follows: when the device is used, the construction waste is firstly put into the placing frame 5, then the first motor 3 is opened, the first motor 3 drives the threaded rod 4 to rotate, so that the placing frame 5 descends into the screening box 2, water is added into the screening box 2, wood in the waste floats on the water surface, the second motor 11 is opened, the second motor 11 drives the first belt pulley 9, the second belt pulley 10 and the belt 12 to move, so that the screening box 2 rotates, so that the wood in the construction waste can be sufficiently screened out, then the wood is artificially fished out, then the first motor 3 is moved reversely, the placing frame 5 is lifted, then the fixing rod 6 is manually rotated, the placing frame 5 is placed on the upper side of the crushing box 81, then the first cylinder 53 is opened, the first cylinder 53 drives the inserted rod 54 to be far away from the first baffle 52, so that the first baffle 52 is opened, the treated construction waste enters the crushing box 81 through the material receiving funnel 82, the third motor 834 is started, the third motor 834 drives the first gear 832 and the second gear 833 to rotate, the first roller 831 is driven to rotate subsequently to crush the construction waste for the first time, then the construction waste is crushed for the second time through the second crushing assembly 84, the construction waste is crushed more thoroughly through two directions, then the crushed waste enters the position above the rotating wheel 142 through the inclined plate 141, the fourth motor 143 is started, the rotating wheel 142 is driven to rotate by the fourth motor 143, batch feeding is realized through the second baffle, then a mixture of the rotating wheel 142 and the second baffle falls onto the conveyor belt 144, the crushing box 81 is taken out by the conveyor belt 144, and the next treatment stage is carried out.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a civil engineering construction waste treatment device, includes base (1), its characterized in that: the screening box is characterized in that a screening box (2) is arranged on one side of the base (1), a first motor (3) is arranged on one side of the screening box (2), the first motor (3) is rotatably connected with the base (1), the axis of the output shaft of the first motor (3) is vertically arranged, a threaded rod (4) is fixedly connected with the output end of the first motor (3), a placing frame (5) is sleeved on the threaded rod (4), the placing frame (5) is connected with the threaded rod (4), a fixing rod (6) is inserted into the placing frame (5) and is slidably connected with the placing frame and the threaded rod, a first sliding block (7) is fixedly connected with one side of the base (1) by the fixing rod (6), a sliding groove (13) is formed in the base (1), the first sliding block (7) is slidably connected with the sliding groove (13), and a first belt pulley (9) is fixedly connected with one side of the base (1) by the screening box (2), first belt pulley (9) with base (1) rotates to be connected, base (1) fixedly connected with second motor (11), second motor (11) fixedly connected with second belt pulley (10), first belt pulley (9) with second belt pulley (10) pass through belt (12) and connect, first motor (3) one side is equipped with reducing mechanism (8), be equipped with ejection of compact subassembly (14) in reducing mechanism (8).

2. The civil engineering construction waste treatment apparatus of claim 1, wherein: the placing frame (5) comprises a frame body (51) and a first baffle (52), the frame body (51) is in threaded connection with the threaded rod (4), the frame body (51) is in sliding connection with the fixing rod (6), the first baffle (52) is close to the placing frame (5), one side of the base (1) is hinged, the frame body (51) is far away from the frame body (51) and a first air cylinder (53) fixedly connected to one side of a hinged shaft of the first baffle (52), the axis of an output shaft of the first air cylinder (53) is vertically and horizontally arranged, an inserting rod (54) is fixedly connected to the output end of the first air cylinder (53), the first baffle (52) is close to one end of the inserting rod (54), and a plurality of filtering holes are formed in the placing frame (5).

3. The civil engineering construction waste treatment apparatus of claim 1, wherein: the smashing device (8) comprises a smashing box (81), the smashing box (81) is fixedly connected with the base (1), the smashing box (81) is far away from the base (1) one side fixedly connected with receiving hopper (82), a first smashing assembly (83) is arranged in the smashing box (81), the first smashing assembly (83) comprises a plurality of first rollers (831) which are parallel to each other, the first rollers (831) are horizontally arranged, the two ends of the first rollers (831) are rotatably connected with the inner side wall of the smashing box (81), the first gears (832) are sleeved on the same side of the first rollers (831) and fixedly connected with the first rollers (831), the first gears (832) are meshed with each other, one of the edges is arranged, the first gears (832) are meshed with a second gear (833), the second gear (833) is fixedly connected with a third motor (834), the third motor (834) is fixedly connected with the inner side wall of the crushing box (81), and a second crushing assembly (84) is arranged on one side, close to the ground, of the first crushing assembly (83).

4. The civil engineering construction waste treatment apparatus of claim 3, wherein: the second crushing assembly (84) is arranged in the box body of the first crushing assembly (83), and the first roller (831) in the second crushing assembly (84) is vertical to the axis of the first roller (831) in the first crushing assembly (83) and is horizontally arranged.

5. The civil engineering construction waste treatment apparatus of claim 3, wherein: ejection of compact subassembly (14) includes two hang plates (141), two hang plate (141) all with smash case (81) inside wall fixed connection, two be equipped with swiveling wheel (142) between hang plate (141), a plurality of second baffles of swiveling wheel (142) week side fixedly connected with, swiveling wheel (142) both ends all with smash case (81) inside wall and rotate firmly and connect, swiveling wheel (142) one end is run through smash case (81) a lateral wall and fixedly connected with fourth motor (143), fourth motor (143) with smash case (81) lateral wall fixed connection, the through-hole has been seted up to smash case (81) one side, base (1) fixedly connected with conveyer belt (144), conveyer belt (144) one end is passed through the through-hole and place in swiveling wheel (142) below.