Environment-friendly excrement collecting device for dwarf horse feeding area

Abstract

The utility model discloses an environment-friendly excrement collecting device in a dwarf horse feeding area in the technical field of animal husbandry environment protection, which comprises a box body, a notch is formed in the box body along the advancing direction, the notch is rotatably communicated with a collecting shovel, the top of the collecting shovel is fixedly connected with a lifting rope, and the top of the box body is fixedly connected with a pulley assembly used for changing the direction of force. The lifting rope bypasses the pulley assembly and is fixedly connected with a pull handle; a crushing rod is arranged in the box body, the two ends of the crushing rod penetrate through the side wall of the box body in the length direction and are rotationally connected with the side wall of the box body, a bearing assembly for supporting the crushing rod is fixedly connected to the rotating joint of the crushing rod and the box body, and belt transmission assemblies for transmitting power are fixedly connected to the two ends of the crushing rod; a wheel assembly used for achieving running and driving the belt transmission assembly is arranged at the bottom of the box body. The device is easy to operate, excrement can be collected, swept and crushed in a narrow dwarf horse feeding area, the designed structure is environmentally friendly and energy-saving, energy consumption is reduced, and the sweeping and collecting difficulty of the dwarf horse feeding area is lowered.

Description

Technical Field

[0001] This utility model belongs to the field of animal husbandry environmental protection technology, specifically an environmentally friendly manure collection device for miniature horse breeding areas. Background Technology

[0002] Miniature horses are rare, and their economic value is determined by their height; the shorter the horse, the higher the price. They are not only used for viewing, entertainment, and riding, but also have significant scientific research value. China, as one of the few miniature horse producing regions in the world, possesses abundant genetic resources that can be widely used in scientific research, tourism, artistic performances, and riding training. In their rearing environment, miniature horses require ample clean water and a suitable environment, with regular cleaning to maintain hygiene. The collected horse manure has multiple uses in agriculture and the ecological environment.

[0003] Manure collection plays a vital role in the management of miniature horses. It is not only a key means of maintaining a clean and hygienic feeding environment but also an important pathway to the resource utilization of livestock manure. Methods for collecting livestock manure include manual collection and mechanical collection. Compared to using machines, manual collection is more labor-intensive. While existing manure collection machines can achieve good collection results, most are large in size, consume a lot of energy, and are difficult to operate in the confined spaces where miniature horses are kept, and are also not environmentally friendly. Therefore, it is necessary to propose an energy-saving, environmentally friendly, and easily and flexibly operable manure collection device for miniature horse feeding areas. Utility Model Content

[0004] To address the aforementioned problems, the purpose of this invention is to provide an environmentally friendly manure collection device for miniature horse breeding areas. The device collects horse manure by manually pushing it, and the kinetic energy of the pushing device drives a crushing rod to break up the manure, thus achieving a collection effect that is both environmentally friendly and labor-saving.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: an environmentally friendly manure collection device for a miniature horse breeding area, comprising a box body with doors on both the bottom and back; the box body has a slot along the forward direction, the slot is rotatably connected to a collection shovel, a hanging rope is fixedly connected to the top of the collection shovel, a pulley assembly for changing the direction of force is fixedly connected to the top of the box body, and the hanging rope passes around the pulley assembly and is fixedly connected to a handle.

[0006] The box is equipped with a crushing rod inside. Both ends of the crushing rod pass through the side wall along the length of the box and are rotatably connected to the side wall of the box. A bearing assembly supporting the crushing rod is fixedly connected at the rotatable connection between the crushing rod and the box. Both ends of the crushing rod are fixedly connected to a belt drive assembly for transmitting power. The bottom of the box is equipped with a wheel assembly for driving the belt drive assembly.

[0007] The basic principle is as follows: the horse manure is lifted by the collection shovel due to its inertia by the device pushed by man. Pulling the handle lifts the collection shovel and pours the horse manure into the box. At the same time, the wheel assembly rotates, which drives the crushing rod to rotate through the belt drive assembly and bearing assembly, thus crushing the horse manure.

[0008] The beneficial effects of the basic scheme are:

[0009] 1. The design, which uses a belt drive assembly to transmit the kinetic energy of the pushing device to drive the crushing rod, effectively reduces energy consumption and device complexity, thereby reducing the device's size and making it suitable for use in narrow pony enclosures. Crushing horse manure accelerates its decomposition and improves nutrient release efficiency.

[0010] 2. The design of using a manually operated shovel to lift horse manure allows for greater flexibility and adaptability during the collection process when dealing with the complex environment of miniature horse husbandry.

[0011] 3. The design of lifting the collection shovel by pulling the handle to empty the horse manure in the shovel increases the flexibility of the device, effectively reduces energy consumption, device complexity and size, and facilitates collection operations in the miniature horse breeding area.

[0012] Furthermore, a blower is installed on the top of the enclosure, and the output end of the blower is connected to the input end of the controller. The air intake of the blower extends through the top of the enclosure and into the interior of the enclosure.

[0013] The beneficial effects of the basic solution are: the blower has a strong suction capacity, which creates a negative pressure state inside the box, allowing it to suck up feces and dust particles from below the device, and further clean and collect the ground after the collection shovel.

[0014] Furthermore, a dust suction port is provided on the bottom of the box, away from the collecting shovel, and a check valve is fixedly connected to the inner wall of the dust suction port.

[0015] The benefits of the basic design are: the suction port is close to the ground, which makes the airflow more concentrated and faster, helping to form a stronger negative pressure area, thereby enhancing suction. When the blower stops working, the check valve installed in the suction port can effectively reduce the probability of the suspended particles falling back to the ground when they fall into the chamber.

[0016] Furthermore, a partition plate is fixedly connected to the bottom wall of the box, and a first weighing sensor is fixedly connected to the side of the partition plate near the slot. The output signal of the first weighing sensor is connected to the input of the controller, and the output signal of the controller is connected to the input of the indicator light. The indicator light is fixedly connected to the top of the box.

[0017] The beneficial effects of the basic scheme are: the design of the partition plate prevents the collected horse manure from entering the check valve and hindering the suction; the fixedly connected first weighing sensor can detect the collection progress, and after analysis by the controller, the signal is transmitted to the indicator light, which effectively reduces the probability of over-collection and interference with the suction.

[0018] Furthermore, an inclined receiving plate is fixedly connected to the inner wall of the box on the side away from the slot. The side of the receiving plate connected to the box is lower than the other side. A second weighing sensor is provided at the connection between the receiving plate and the box. The output signal of the second weighing sensor is connected to the input of the controller.

[0019] The basic solution offers the following benefits: by installing a receiving plate, a large amount of suspended particulate matter can be caught after the blower stops working, effectively reducing the probability of suspended particulate matter falling onto the check valve and the ground when it falls into the tank, thus increasing collection efficiency. A fixedly connected second weighing sensor can detect the progress of particulate matter accumulation, and the controller analyzes the data and transmits the signal to the indicator light, effectively reducing the probability of excessive particulate matter accumulation.

[0020] Furthermore, several air inlet pipes are fixedly connected to the side of the housing near the slot. The two ends of the air inlet pipes are tapered pipes, and the middle section is a straight pipe with a diameter smaller than that of the two ends. All air inlet pipes pass through the housing and extend into the housing. Solenoid valves are fixedly connected inside the air inlet pipes, and the input end of the solenoid valves is connected to the output end of the controller.

[0021] The beneficial effects of the basic solution are as follows: After the blower stops working, the solenoid valve is opened by the controller, the air inlet pipe connects the box to the outside, and the device is pushed. When the air reaches the short straight pipe through the air inlet pipe, due to the reduction in pipe diameter, the air flow velocity in this area will be significantly accelerated and enter the box. This causes the suspended particles in the box to be blown toward the receiving plate, effectively reducing the probability that the suspended particles in the box will fall onto the check valve and the ground.

[0022] Furthermore, a brush assembly is detachably connected to the bottom of the box near the collecting shovel.

[0023] The beneficial effects of the basic scheme are: when the device is working to collect the particles, the brush comes into contact with the ground that has been shoveled. When it comes into contact with the particles on the ground, some of its momentum is transferred to the particles, causing the particles adsorbed on the ground to move and making it easier to absorb the particles. When the collection is finished, it is easy to disassemble and clean the brush for reuse or to replace the brush, which effectively increases the absorption efficiency of the particles.

[0024] Furthermore, the pulley assembly includes a pulley bracket, which is fixedly connected to the top of the box, and a pulley is rotatably connected to the pulley bracket; a push rod is fixedly connected to the side of the box away from the slot, and a through hole is provided on the push rod, through which a hanging rope passes around the pulley and through the through hole and is fixedly connected to the handle.

[0025] The basic design offers the advantage of allowing for easy guidance of the device forward, backward, or inward movement by gripping the push rod and applying force, thus enabling precise control over its direction of travel. The suspension rope, after passing over the pulley and changing direction, passes through the push rod's through-hole and connects to the handle. When released, the handle is pulled towards the through-hole by the weight of the collecting shovel and the traction force of the suspension rope, until the collecting shovel no longer exerts traction, facilitating the next pull.

[0026] Furthermore, the bearing assembly includes a bearing, a bearing housing fixedly connected to the outer ring of the bearing, a bearing cover fixedly connected to the inner wall of the bearing housing, and the contact surface of the bearing housing fitting against the mounting surface of the bearing cover.

[0027] The beneficial effects of the basic solution are: through the design of the bearing assembly, the bearing and bearing housing cooperate to fix the position of the crusher rod in three directions: radial, axial and tangential, ensuring that the crusher rod remains stable during rotation and reducing vibration. The bearing cover and bearing housing cooperate to effectively prevent external dust from entering the bearing, improve the service life of the bearing and reduce the maintenance cost of the equipment.

[0028] Furthermore, the wheel assembly includes several axles, with wheels fixedly connected to both ends of each axle; the belt drive assembly includes a drive wheel fixedly connected to both ends of one of its axles and a driven wheel fixedly connected to both ends of the crushing rod, with a drive belt on each drive wheel engaging with the corresponding driven wheel.

[0029] The advantages of the basic design are: by using the linkage design of the pulley assembly and wheel assembly, the force on the axle can be efficiently transmitted to the crushing bar. By selecting the appropriate transmission ratio of the drive wheel and transmission wheel, the effort-saving effect can be achieved. Moreover, the two have simple structures and are suitable for use in the humid and corrosive pony breeding area. Attached Figure Description

[0030] Figure 1 This is an isometric view of the environmentally friendly manure collection device in the miniature horse breeding area in this embodiment of the present invention.

[0031] Figure 2 This is a front sectional view of the housing of the environmentally friendly manure collection device for the miniature horse breeding area in an embodiment of this utility model.

[0032] Figure 3 This is a schematic diagram of the assembly of the pulley assembly, bearing assembly and wheel of the environmentally friendly manure collection device for the miniature horse breeding area in this embodiment of the present invention. Detailed Implementation

[0033] The following detailed description illustrates the specific implementation method:

[0034] The reference numerals in the accompanying drawings of the instruction manual include: 1. Housing; 2. Pulley assembly; 3. Air inlet duct; 4. Collection shovel; 5. Handle; 6. Push rod; 7. Signal light; 8. Driven wheel; 9. Wheel assembly; 10. Brush; 11. Blower; 12. Drive belt; 13. Receiving plate; 14. Second load cell; 15. First load cell; 16. Divider plate; 17. Crushing rod; 18. Check valve; 19. Bearing housing; 20. Bearing; 21. Bearing cover; 22. Drive wheel; 23. Controller; 24. Solenoid valve; 25. Lifting rope.

[0035] Example 1:

[0036] The basics are as follows: Figure 1 , Figure 2 , Figure 3 As shown: An environmentally friendly manure collection device for a miniature horse breeding area includes a box body 1 with hinges connecting the bottom and back of the box body to the door; the box body 1 has a slot along the forward direction, and the slot is rotatably connected to a collection shovel 4; a hanging rope 25 is knotted and connected to the top of the collection shovel 4; a pulley assembly 2 for changing the direction of force is fixedly connected to the top of the box body 1; the hanging rope 25 passes around the pulley assembly 2 and is knotted and connected to a handle 5.

[0037] The crushing rod 17 is indirectly connected inside the housing 1. Both ends of the crushing rod 17 extend through both sides of the housing 1 along its length and are rotatably connected to the housing 1. Bearing assemblies 20 supporting the rotating body are interference-fitted at the connection points. Both ends of the crushing rod 17 are keyed to belt drive assemblies for transmitting power. Wheel assemblies 9 for driving and operating the belt drive assemblies are located at the bottom of the housing 1. Both ends of the crushing rod 17 are fixedly connected to belt drive assemblies for transmitting power, and wheel assemblies 9 for driving and operating the belt drive assemblies are located at the bottom of the housing 1.

[0038] The pulley assembly 2 includes a pulley bracket, a pulley screw connected to the top of the housing 1, and a pulley rotatably connected to the pulley bracket; a push rod 6 is welded to the side of the housing 1 away from the slot, the push rod 6 has a through hole, and the hanging rope 25 passes around the pulley and through the through hole to be fixedly connected to the handle 5.

[0039] The wheel assembly 9 includes two axles, with wheels fixedly connected to both ends of the axles; the bearing 20 assembly includes a bearing 20, with a bearing housing 19 interference-fitted to the outer ring of the bearing 20, and a bearing cover 21 interference-fitted to the inner wall of the bearing housing 19, with the contact surface of the bearing housing 19 and the mounting surface of the bearing cover 21 in contact.

[0040] The belt drive assembly includes a drive pulley 22 that is keyed to both ends of one of its axles and a driven pulley 8 that is keyed to both ends of the crushing rod 17. Each drive pulley 22 is equipped with a drive belt 12 that drives the corresponding driven pulley 8.

[0041] The specific implementation process is as follows: During collection, the worker pushes the device forward by holding the push rod 6 and applying force. The horse manure, due to its inertia, attempts to remain stationary and is scooped up by the collection shovel 4. After the collection shovel 4 scoops up the horse manure, it pulls the handle 5, causing the hanging rope 25 to pass around.

[0042] The pulley assembly 2 lifts the collection shovel 4. Under the influence of gravity, the horse manure falls through the trough into the inner wall of the box 1 near the trough. After releasing the handle 5, the collection shovel 4 falls back to the ground under the influence of gravity, while the traction force is applied to the suspension rope 25. The handle 5 will move closer to the through hole of the push rod 6 under the traction force of the suspension rope 25 until the collection shovel 4 falls back, making it convenient to pull next time.

[0043] When the device is pushed after the horse manure is collected and put into the box, the wheels and axle rotate, which drives the drive wheel 22 connected to the key on the axle to rotate. Under the action of friction, the force is transmitted to the driven wheel 8 through the transmission belt 12. The driven wheel 8 drives the crushing rod 17 to rotate along the axis inside the box 1 under the support of the bearing 20 and the bearing seat 19, which crushes and disperses the horse manure collected in the box 1.

[0044] Example 2:

[0045] As attached Figure 2 As shown, the difference from the above embodiment is that a partition plate 16 is welded to the bottom wall of the box 1, and a first weighing sensor 15 is fixedly connected to the side of the partition plate 16 near the slot. The first weighing sensor 15 is preferably of model MTB-30kg. The output terminal of the first weighing sensor 15 is connected to the input terminal of the controller 23. The controller 23 is preferably of model XK3190. The output terminal of the controller 23 is connected to the input terminal of the indicator light 7, and the indicator light 7 is screwed to the top of the box 1.

[0046] The specific implementation process is as follows: During the collection process, the first weighing sensor 15 on the partition plate 16 continuously detects the horse manure collection status and transmits the signal to the controller 23. When the pressure set by the controller 23 is reached, the controller 23 transmits the signal to the indicator light 7. After receiving the signal, the indicator light 7 emits a light signal to remind the staff of the horse manure collection progress and the cleaning device.

[0047] Example 3:

[0048] As attached Figure 1 , Figure 2 As shown, the difference from the above embodiment is that a blower 11 is bolted to the top of the box 1, the output signal of the blower 11 is connected to the input of the controller 23, and the air intake of the blower 11 extends through the top of the box 1 and into the interior of the box 1; a dust suction port is opened on the bottom of the box 1 away from the collecting shovel 4, and a check valve 18 is connected to the flange on the inner wall of the dust suction port; a brush rack 10 is connected to the bottom of the box 1 near the collecting shovel 4.

[0049] The specific implementation process is as follows: During the cleaning process, when there are still small horse manure or dust particles attached to the ground in the area that the device has shoveled and needs to be cleaned, the ground in that area will come into contact with the brush 10. When it comes into contact with the particles on the ground, its momentum will be partially transferred to the particles, causing the particles adsorbed on the ground to move. At the same time, the blower 11 is turned on, so that the box 1 is in a negative pressure state. Due to the design of the dust suction port, the airflow is smaller and closer to the ground, making the airflow more concentrated and faster. The negative pressure in the box is enhanced, thereby enhancing the suction force on the bottom of the device. The ground particles swept by the brush 10 are sucked into the box 1 through the dust suction port and the check valve 18.

[0050] After vacuuming is complete, the blower 11 is turned off, the signal transmission to the controller 23 is stopped, the air pressure inside the housing 1 returns to normal, and the suspended particles fall due to gravity. The valve disc of the check valve 18 installed in the suction port closes, reducing the probability of particles falling back to the ground. When cleaning, maintenance, or replacement of the brush assembly 10 is required, the brush assembly 10 can be removed by opening the clip.

[0051] Example 4:

[0052] As attached Figure 1 , Figure 2 As shown, the difference from the above embodiment is that a receiving plate 13 inclined at 45° is welded to the inner wall of the box body 1 on the side away from the slot. The side of the receiving plate 13 connected to the box body 1 is lower than the other side. The receiving plate 13 is threadedly connected to the box body 1 at the connection point. The model of the second weighing sensor 14 is preferably MTB-30kg. The output signal of the second weighing sensor 14 is connected to the input of the controller 23. The output signal of the controller 23 is connected to the input of the signal lamp 7.

[0053] Three air inlet pipes 3 are fixedly connected to one side of the housing 1 with a slot. The two ends of the air inlet pipes 3 are tapered pipes, and the middle section is a short straight pipe with a diameter smaller than that of the two ends. All the air inlet pipes 3 pass through the housing 1 and extend into the interior of the housing 1. All the air inlet pipes 3 are threadedly connected to a solenoid valve 24. The input end of the solenoid valve 24 is connected to the output end of the controller 23.

[0054] The specific implementation process is as follows: After the dust collection ends, the blower 11 stops working. The controller 23 receives the blower 11 shutdown signal and controls the solenoid valves 24 in each air inlet pipe 3 to open, connecting the inside of the box 1 with the outside. This pushes the device, and when the air reaches the short straight pipe through the air inlet pipe 3, the air velocity will be significantly accelerated as it flows through this area due to the reduced pipe diameter, entering the box 1. This blows the suspended particles collected in the box 1 upwards to the receiving plate 13, where they are suspended. Due to gravity, the suspended particles fall onto the surface of the receiving plate 13 and slide down at the angle between the receiving plate 13 and the right inner wall of the box 1. The second weighing sensor 14 continuously detects the particle collection status and transmits the signal to the controller 23. When the pressure set by the controller 23 is reached, the controller 23 transmits a signal to the indicator light 7. The indicator light 7 receives the signal and emits a light signal to remind the staff of the particle collection progress and to clean the receiving plate 13.

[0055] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0056] The above descriptions are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are knowledgeable of all existing technologies in that field, and possess the ability to apply conventional experimental methods prior to that date. Therefore, those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in conjunction with their own capabilities. Typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. An environmentally friendly manure collection device for a miniature horse breeding area, characterized in that: The box body (1) has doors on both the bottom and the back; The box (1) has a slot along the forward direction, and the slot is connected to a collection shovel (4) by rotation. The top of the collection shovel (4) is fixedly connected to a hanging rope (25). The top of the box (1) is fixedly connected to a pulley assembly (2) for changing the direction of force. The hanging rope (25) passes around the pulley assembly (2) and is fixedly connected to a handle (5). Inside the housing (1) is a crushing rod (17). Both ends of the crushing rod (17) pass through the side wall of the housing (1) along its length and are rotatably connected to the side wall of the housing (1). A bearing (20) assembly supporting the crushing rod (17) is fixedly connected at the rotatable connection between the crushing rod (17) and the housing (1). Both ends of the crushing rod (17) are fixedly connected to a belt drive assembly for transmitting power. The bottom of the housing (1) is provided with a wheel assembly (9) for driving and driving the belt drive assembly.

2. The environmentally friendly manure collection device for miniature horse breeding areas according to claim 1, characterized in that: A blower (11) is provided on the top of the housing (1). The output end of the blower (11) is connected to the input end of the controller (23). The air inlet of the blower (11) extends through the top of the housing (1) and into the interior of the housing (1).

3. The environmentally friendly manure collection device for miniature horse breeding areas according to claim 2, characterized in that: The box (1) is fixedly connected to several air inlet pipes (3) on the side near the slot. The two ends of the air inlet pipes (3) are tapered pipes, and the middle section is a short straight pipe with a diameter smaller than that of the two ends. The air inlet pipes (3) all pass through the box (1) and extend into the box (1). Solenoid valves (24) are fixedly connected inside the air inlet pipes (3). The input end of the solenoid valves (24) is connected to the output end of the controller (23).

4. The environmentally friendly manure collection device for miniature horse breeding areas according to claim 3, characterized in that: A dust suction port is provided on the bottom of the box (1) away from the collecting shovel (4), and a check valve (18) is fixedly connected to the inner wall of the dust suction port.

5. The environmentally friendly manure collection device for miniature horse breeding areas according to claim 4, characterized in that: A partition plate (16) is fixedly connected to the bottom wall of the box (1). A first weighing sensor (15) is fixedly connected to the side of the partition plate (16) near the slot. The output signal of the first weighing sensor (15) is connected to the input of the controller (23). The output signal of the controller (23) is connected to the input of the signal lamp (7). The signal lamp (7) is fixedly connected to the top of the box (1).

6. The environmentally friendly manure collection device for miniature horse breeding areas according to claim 5, characterized in that: An inclined receiving plate (13) is fixedly connected to the inner wall of the box (1) away from the slot. The side of the receiving plate (13) connected to the box (1) is lower than the other side. A second weighing sensor (14) is provided at the connection between the receiving plate (13) and the box (1). The output signal of the second weighing sensor (14) is connected to the input of the controller (23).

7. The environmentally friendly manure collection device for miniature horse breeding areas according to claim 6, characterized in that: The pulley assembly (2) includes a pulley bracket, which is fixedly connected to the top of the box (1), and a pulley is rotatably connected to the pulley bracket; a push rod (6) is fixedly connected to the side of the box (1) away from the slot, and a through hole is provided on the push rod (6). The hanging rope (25) passes around the pulley and through the through hole and is fixedly connected to the handle (5).

8. The environmentally friendly manure collection device for miniature horse breeding areas according to claim 7, characterized in that: A brush assembly (10) is detachably connected to the bottom of the box (1) near the collecting shovel (4).

9. The environmentally friendly manure collection device for miniature horse breeding areas according to claim 8, characterized in that: The bearing (20) assembly includes a bearing (20), a bearing housing (19) is fixedly connected to the outer ring of the bearing (20), a bearing cover (21) is fixedly connected to the inner wall of the bearing housing (19), and the contact surface of the bearing housing (19) is in contact with the mounting surface of the bearing cover (21).

10. The environmentally friendly manure collection device for miniature horse breeding areas according to claim 9, characterized in that: The wheel assembly (9) includes several axles, with wheels fixedly connected to both ends of the axles; The belt drive assembly includes a drive wheel (22) fixedly connected to both ends of one of its axles and a driven wheel (8) fixedly connected to both ends of the crushing rod (17). The drive wheel (22) is provided with a drive belt (12) that drives the corresponding driven wheel (8).

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