A pomegranate juice extraction device

Abstract

This invention discloses a pomegranate juice extraction device, relating to the field of fruit juicing technology. It includes a base frame, with a pressing component at the top for pressing the pomegranate. A loading / unloading port is located at the center of the top of the base frame. Four side frames extending from the loading / unloading port are located inside the base frame. Two sets of filter components are mounted at the bottom of the four side frames. A liquid frame is located directly below the four side frames within the base frame. This invention, through the cooperation of the filter and pressing components, automatically flips and cleans the pomegranate peel after pressing. During the cleaning process, adjacent sets of separators move relative to each other, and the arc strips within the two sets of semi-circular grooves compress the peel, making its diameter smaller than the circular hole formed by the two sets of semicircles. Finally, the peel is dislodged during the flipping action, completing the cleaning of the filter screen composed of multiple separators, thus facilitating efficient juicing of the pomegranate in the next extraction.

Description

Technical Field

[0001] This invention relates to the field of fruit juicing technology, specifically to a pomegranate juice extraction device. Background Technology

[0002] Pomegranate is a berry, and the entire plant is usable when ripe. The peel can be used in medicine, and the fruit can be eaten or juiced. It is rich in nutrients, containing a large amount of organic acids, sugars, proteins, fats, vitamins, and minerals such as calcium, phosphorus, and potassium. It can replenish the body's energy and heat, and has the effects of clearing heat, detoxifying, calming the liver, nourishing blood, promoting blood circulation, and stopping diarrhea. Not only is the fruit of the pomegranate rich in nutrients, but the leaves, peel, and flowers can also be used as medicine.

[0003] However, since the edible part of the pomegranate is the outer seed coat, and the hard inner seed coat cannot be eaten directly, it causes great inconvenience to eating fresh pomegranates. Pomegranate juice has become an important way to utilize pomegranates, and therefore pomegranate juicers are widely used.

[0004] Existing pomegranate juicers require cutting the pomegranate in half with a fruit knife, placing the half in a concave bowl, and then using a drive mechanism to move a convex bowl downwards to squeeze the pomegranate juice. The juice is then filtered through a filter and discharged from the juice outlet. Because the pomegranate needs to be cut beforehand and the convex bowl needs to be manually moved downwards to squeeze the juice, the work efficiency is low. Furthermore, manually cutting the pomegranate can easily injure the hand, and manual operation cannot guarantee the juice yield, resulting in low practicality. Therefore, a pomegranate juice extraction device is proposed. Summary of the Invention

[0005] Therefore, the purpose of this invention is to provide a pomegranate juice extraction device to solve the technical problems mentioned in the background above.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a pomegranate juice extraction device, comprising a bottom frame, a pressing component for pressing pomegranates is provided at the top of the bottom frame, a pick-and-place opening is provided at the center of the top of the bottom frame, a four-sided frame extending from the pick-and-place opening is provided inside the bottom frame, two sets of filter components are assembled at the bottom end of the four-sided frame, and a liquid frame is provided directly below the four-sided frame inside the bottom frame.

[0007] The filter assembly includes a drive shaft rotatably mounted on the inner wall of the bottom frame. The drive shaft is located at the bottom corner of the four sides of the frame. Two sets of filter frames are fixed horizontally on the outer wall of the drive shaft, and two sets of baffles are fixed vertically on the outer wall of the drive shaft. Notches are provided on both sides of the four sides of the frame at the contact positions with the baffles. Fan blades fixed to the inner wall of the bottom frame are provided on the outer wall of the drive shaft near both ends. Fan-shaped grooves are provided on the end faces of the fan blades near the filter frames. Multiple sets of hemispheres are fixed in the fan-shaped grooves. Two sets of drive motors for driving the drive shaft are assembled on the rear surface of the bottom frame.

[0008] Multiple sets of partitions are slidably arranged inside the filter frame. Multiple sets of semicircular grooves are equidistantly opened on the side of adjacent sets of partitions. The inner wall of each partition has a clearance groove that communicates with the semicircular groove. An arc strip is fixed to the inner wall of the clearance groove near the inner wall of the semicircular groove. Frame grooves are opened at both the front and rear ends of the filter frame. A ball-head rod fixed to the end of the partition is provided in the frame groove. A constraint plate fixed to the inner wall of the frame groove is slidably sleeved on the outer wall of the ball-head rod. A spring fixed to the constraint plate is assembled on the outer wall of the ball-head rod.

[0009] As a preferred embodiment of the pomegranate juice extraction device of the present invention, the pressing assembly includes a top frame fixed to the top of the bottom frame, a pressure plate is mounted directly below the top frame and aligned with the four sides, and an electric push rod is installed on the top of the top frame to drive the pressure plate to rise and fall.

[0010] As a preferred embodiment of the pomegranate juice extraction device of the present invention, the top of the liquid frame is open, and a triangular frame is fixed at the top edge of the liquid frame, with a filter screen that is raised in the middle fixed inside the frame.

[0011] As a preferred technical solution of the pomegranate juice extraction device of the present invention, an arc-shaped opening larger than the outer diameter of the drive shaft is provided at the bottom corner of the notch, positioning blocks are fixed on the front and rear surfaces of the four sides, and positioning block grooves are provided on the inner wall of the bottom frame at positions corresponding to the positioning blocks.

[0012] As a preferred technical solution of the pomegranate juice extraction device of the present invention, the multiple sets of hemispheres are arranged in a ring array with the center of the fan blade as the base point, and the hemispheres on the end faces of the two sets of fan blades are arranged in a staggered manner.

[0013] As a preferred embodiment of the pomegranate juice extraction device of the present invention, a collection component is provided in the bottom frame near the inner walls on both sides, and the side wall of the bottom frame is provided with a movable door for removing pomegranate peel from the collection component.

[0014] As a preferred technical solution of the pomegranate juice extraction device of the present invention, the collection component includes an outer frame movably assembled within a bottom frame. A conical seat is fixed to the inner wall of the outer frame. Multiple sets of water-permeable holes are opened at the bottom of the conical seat. A discharge hole is reserved on the front and rear surfaces of the movable door near the bottom. A sealing plug is threaded into the discharge hole. Two sets of conical strips are provided above the conical seat. A top frame is fixed to the top of the two sets of conical strips. An operating groove is opened at the contact position between the front and rear inner walls of the bottom frame and the top frame. A driven ring is rotatably provided in the operating groove. A base rod is fixed to the end face of the driven ring near the top frame and at an eccentric position. A horizontal frame is sleeved on the outer wall of the base rod and slidably arranged with the operating groove. A connecting arm is fixed to the bottom of the horizontal frame and the top of the top frame. A rotating rod is fixed at the center of the driven ring and rotatably arranged with the inner wall of the operating groove. The rotating rod and the drive shaft are driven by a belt.

[0015] In summary, the present invention has the following main beneficial effects:

[0016] This invention uses a combination of a filter component and a pressing component to automatically turn over and clean the pomegranate peel after pressing. During the cleaning process, two adjacent sets of partitions move relative to each other, and the arc strips in the two sets of semicircular grooves compress the peel, making its diameter smaller than the circular hole formed by the two sets of semicircles. Finally, the peel falls off with the turning action, completing the cleaning purpose of the filter screen composed of multiple partitions, thus facilitating efficient juicing of pomegranates in the next time.

[0017] This invention utilizes the flipping action of the filter frame to allow the peel and pressed pulp to fall into the outer frame, thus completing the up-and-down movement of the squeezed pomegranate. With the next flipping action, the cone strip is lowered, and the peel and pulp located between the cone base and the cone strip are squeezed a second time, which can fully squeeze out the remaining juice inside. The pomegranate juice can be extracted by removing the outer frame, thereby improving the quality of pomegranate juicing. Attached Figure Description

[0018] Figure 1 This is a first-view structural diagram of the present invention;

[0019] Figure 2 This is a second-view structural diagram of the present invention;

[0020] Figure 3 This is a front sectional view of the present invention;

[0021] Figure 4 This is a structural diagram of the filter component and its four-sided frame of the present invention;

[0022] Figure 5 This is a top sectional view of the filter frame of the present invention;

[0023] Figure 6 For the present invention Figure 5Enlarged view of point A in the middle;

[0024] Figure 7 This is a plan view of the fan blade of the present invention;

[0025] Figure 8 This is a front sectional view of the bottom frame of the present invention;

[0026] Figure 9 For the present invention Figure 8 A magnified view is shown in section A.

[0027] In the diagram: 100, bottom frame; 101, loading / unloading port; 102, operation slot; 200, four-sided frame; 300, filter assembly; 400, collection assembly;

[0028] 110. Top frame; 120. Electric push rod; 130. Pressure plate; 140. Movable door; 150. Liquid frame;

[0029] 210. Notch; 220. Arc;

[0030] 310. Drive shaft; 320. Filter frame; 321. Frame groove; 322. Constraint plate; 330. Baffle; 340. Fan blade; 341. Fan-shaped groove; 342. Hemisphere; 350. Drive motor; 360. Spacer bar; 361. Semicircular groove; 362. Arc bar; 363. Clearance groove; 370. Ball joint rod; 371. Spring;

[0031] 410. Outer frame; 420. Conical seat; 430. Conical strip; 440. Top frame; 450. Driven ring; 460. Connecting arm; 470. Horizontal frame; 480. Base rod. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0033] The embodiments of the present invention will now be described.

[0034] A pomegranate juice extraction device, such as Figures 1 to 9 As shown, it includes a bottom frame 100, a pressing component for pressing pomegranates is provided at the top of the bottom frame 100, a loading and unloading port 101 is provided at the center of the top of the bottom frame 100, a four-sided frame 200 extending from the loading and unloading port 101 is provided inside the bottom frame 100, two sets of filter components 300 are installed at the bottom of the four-sided frame 200, and a liquid frame 150 is provided directly below the four-sided frame 200 inside the bottom frame 100.

[0035] The pressing assembly includes a top frame 110 fixed to the top of the bottom frame 100, a pressure plate 130 mounted directly below the top frame 110 and aligned with the four sides 200, and an electric push rod 120 mounted on the top of the top frame 110 for driving the pressure plate 130 to rise and fall.

[0036] The filter assembly 300 includes an active shaft 310 rotatably mounted on the inner wall of the bottom frame 100. The active shaft 310 is located at the bottom corner of the four-sided frame 200. Two sets of filter frames 320 are fixed horizontally on the outer wall of the active shaft 310, and two sets of baffles 330 are fixed vertically on the outer wall of the active shaft 310. Notches 210 are provided on both sides of the four-sided frame 200 at the contact positions with the baffles 330. Fan blades 340 are provided on the outer wall of the active shaft 310 near both ends and fixed to the inner wall of the bottom frame 100. Fan-shaped grooves 341 are provided on the end faces of the fan blades 340 near the filter frames 320. Multiple sets of hemispheres 342 are fixed in the fan-shaped grooves 341. Two sets of drive motors 350 for driving the active shaft 310 are assembled on the rear surface of the bottom frame 100.

[0037] Multiple sets of spacers 360 are slidably provided inside the filter frame 320. Multiple sets of semicircular grooves 361 are equidistantly provided on the side of two adjacent sets of spacers 360. The interior of the spacers 360 is provided with a clearance groove 363 that communicates with the semicircular groove 361. An arc strip 362 is fixed on the inner wall of the clearance groove 363 near the inner wall of the semicircular groove 361. The front and rear ends of the filter frame 320 are provided with frame grooves 321. A ball head rod 370 fixed to the end of the spacer 360 is provided in the frame groove 321. A constraint plate 322 fixed to the inner wall of the frame groove 321 is slidably sleeved on the outer wall of the ball head rod 370. A spring 371 fixed to the constraint plate 322 is assembled on the outer wall of the ball head rod 370.

[0038] The electric push rod 120 in the pressing assembly pushes the pressure plate 130 to lower and penetrate into the four-sided frame 200, completing the squeezing action of the pomegranate. The pomegranate juice flows from the gap between the partitions 360 into the liquid frame 150 below. At this time, the electric push rod 120 can be controlled to raise the pressure plate 130 to be flush with the top of the bottom frame 100. At this time, the output end of the drive motor 350 will be controlled to rotate, and its drive shaft 310 will rotate 180 degrees, so that the filter frames 320 on the inner and outer sides of the four-sided frame 200 are interchanged. At the same time, the upper and lower baffles 330 will also be interchanged. At this time, pomegranates to be pressed can be placed into the four-sided frame 200, and the electric push rod 120 can be controlled to push the pressure plate 130 to lower to press the pomegranate juice.

[0039] As the drive shaft 310 rotates, the filter frame 320 and its internal multiple sets of partitions 360 rotate downwards. Assisted by centrifugal force during the flipping process, the pomegranate peel at the top of the partitions 360 falls into the outer frame 410 below, and most of the pomegranate pulp falls out. As the filter frame 320 rotates, the ball joints 370 at both ends of each partition 360 move in an arc along the inner wall of the fan-shaped groove 341, contacting the hemisphere 342 along the way. This causes adjacent partitions 360 to move in opposite directions, and the hemispheres on adjacent sides of the two partitions 360 open into a semi-circular groove. The circular groove 361 will gradually shift, and its two sets of arc bars 362 will also move closer together, causing the pomegranate peel located in the two sets of semicircular grooves 361 to be compressed, and the outer diameter will be smaller than the inner wall of the two sets of semicircular grooves 361. Eventually, due to the inertia of the filter frame 320 that has stopped rotating due to gravity, it will fall off. At the same time, the spring 371 will cause each set of partition bars 360 to move back and forth in two directions, so that the pomegranate peel located in the two sets of semicircular grooves 361 will fall off completely, which will facilitate the normal supply of pomegranate juice when the inner and outer filter frames 320 are reversed next time, and can ensure the high efficiency of pomegranate juice pressing every day.

[0040] Please refer to this carefully. Figure 8 The top of the liquid frame 150 is open, and a triangular frame is fixed at the top edge of the liquid frame 150. A filter screen with a central protrusion is fixed inside the frame.

[0041] The pomegranate peels falling from the contact point of the two sets of filter frames 320 are precisely guided into the outer frame 410 using a triangular frame and a filter screen, while pomegranate juice can be filtered through the filter screen into the liquid frame 150.

[0042] Please refer to this carefully. Figure 4 The bottom corner of the notch 210 has an arc 220 with a diameter larger than that of the drive shaft 310. The front and rear surfaces of the four-sided frame 200 are fixed with positioning blocks, and the inner wall of the bottom frame 100 has positioning block grooves corresponding to the positioning blocks.

[0043] The arc 220 ensures that the connection between the drive shaft 310 and the inner wall of the bottom frame 100 is unrestricted, while allowing the baffle 330 and the filter frame 320 to fully contact the four-sided frame 200, forming a closed frame and realizing the pressing action of pomegranate juice.

[0044] Please refer to this carefully. Figure 4 Multiple sets of hemispheres 342 are arranged in a ring array with the center of the fan blade 340 as the base point, and the hemispheres 342 on the end faces of the two sets of fan blades 340 are arranged in a staggered manner.

[0045] When the filter frame 320 rotates around the axis of the drive shaft 310, the two adjacent sets of partitions 360 inside will move in two directions multiple times due to the interlaced hemispheres 342, thereby cleaning the pomegranate peel in the two sets of semicircular grooves 361 of the adjacent partitions 360, which can ensure that the filter screen composed of multiple sets of partitions 360 is in a smooth state.

[0046] Please refer to this carefully. Figure 8 and Figure 9 A collection component 400 is provided inside the bottom frame 100 near the inner walls on both sides, and a movable door 140 for removing pomegranate peels from the collection component 400 is provided on the side wall of the bottom frame 100.

[0047] The collecting component 400 includes an outer frame 410 movably mounted within the base frame 100. A conical seat 420 is fixed to the inner wall of the outer frame 410. Multiple sets of water-permeable holes are provided at the bottom of the conical seat 420. Drainage holes are reserved on the front and rear surfaces of the movable door 140 near the bottom. A sealing plug is threaded into the drainage hole. Two sets of conical strips 430 are provided above the conical seat 420. A top frame 440 is fixed to the top of the two sets of conical strips 430. An operating groove 102 is provided at the contact position between the front and rear inner walls of the base frame 100 and the top frame 440. The operating groove 102 rotates. A driven ring 450 is provided. A base rod 480 is fixed to the end face of the driven ring 450 near the top frame 440 and at an eccentric position. A horizontal frame 470 is sleeved on the outer wall of the base rod 480 and slidably disposed with the operating groove 102. A connecting arm 460 is fixed to the bottom of the horizontal frame 470 and the top of the top frame 440. A rotating rod is fixed at the center of the driven ring 450 and rotatably disposed with the inner wall of the operating groove 102. The rotating rod and the drive shaft 310 are driven by a belt. A belt groove is opened inside the bottom frame 100 and is connected to the operating groove 102 for belt drive.

[0048] The fallen pomegranate peels will enter the space formed by the outer frame 410 and the cone seat 420. When the drive shaft 310 rotates, the driven ring 450 will rotate synchronously through the belt drive. Its end face base rod 480 will move along the circular trajectory, causing the cross frame 470 to move up and down in the operating groove 102. This will cause the cone 430 to move closer to the cone seat 420 through the connecting arm 460, and perform secondary pressing on the pomegranate peels. The juice inside will flow into the space of the outer frame 410 below the cone seat 420 through the discharge hole.

[0049] Please refer to this carefully. Figure 8 The front surface of the bottom frame 100 is equipped with a control screen, which uses existing technology to control the drive motor 350 and the electric push rod 120 to work.

[0050] In use, the electric push rod 120 in the pressing assembly pushes the pressure plate 130 to lower and penetrate into the four-sided frame 200, completing the squeezing action of the pomegranate. The pomegranate juice flows from the gap between the partitions 360 into the liquid frame 150 below. At this time, the electric push rod 120 can be controlled to raise the pressure plate 130 to be level with the top of the bottom frame 100. At this time, the output end of the drive motor 350 will be controlled to rotate, and its drive shaft 310 will rotate 180 degrees, so that the filter frames 320 on the inner and outer sides of the four-sided frame 200 are interchanged. At the same time, the upper and lower baffles 330 will also be interchanged. At this time, pomegranates to be squeezed can be placed into the four-sided frame 200, and the electric push rod 120 can be controlled to push the pressure plate 130 to lower to squeeze the pomegranate juice.

[0051] As the drive shaft 310 rotates, the filter frame 320 and its internal multiple sets of partitions 360 turn downwards. Assisted by centrifugal force during the flipping process, the pomegranate peel at the top of the partitions 360 falls into the outer frame 410 below, and most of the pomegranate pulp falls out. As the filter frame 320 rotates, the ball joints 370 at both ends of each partition 360 move in an arc along the inner wall of the fan-shaped groove 341, contacting the hemisphere 342 along the way. This causes adjacent partitions 360 to move in opposite directions, and the semicircular grooves 361 on adjacent sides of the two partitions 360 gradually misalign. The strips 362 will also move closer together, causing the pomegranate peels located in the two sets of semicircular grooves 361 to be compressed, and the outer diameter will be smaller than the inner wall of the two sets of semicircular grooves 361. Eventually, due to the inertia of the filter frame 320 that has stopped rotating due to gravity, it will fall off. At the same time, the spring 371 will cause each set of spacers 360 to move back and forth in two directions, so that the pomegranate peels located in the two sets of semicircular grooves 361 will fall off completely. This will facilitate the normal supply of pomegranate juice when the inner and outer filter frames 320 are swapped next time. This will ensure the high efficiency of pomegranate juice pressing. The parts not involved in this device are the same as or can be implemented using existing technology.

[0052] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the invention and are not intended to limit it. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the invention, but such modifications, substitutions, and variations are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A pomegranate juice extraction device, comprising a base frame (100), characterized in that: The bottom frame (100) is provided with a pressing component for pressing pomegranates at the top. The bottom frame (100) is provided with a pick-up and drop-off port (101) at the center of the top. The bottom frame (100) is provided with a four-sided frame (200) extending from the pick-up and drop-off port (101). Two sets of filter components (300) are installed at the bottom of the four-sided frame (200). A liquid frame (150) is provided directly below the four-sided frame (200) inside the bottom frame (100). The filter assembly (300) includes an active shaft (310) rotatably mounted on the inner wall of the bottom frame (100). The active shaft (310) is located at the bottom corner of the four-sided frame (200). Two sets of filter frames (320) are fixed horizontally on the outer wall of the active shaft (310). Two sets of baffles (330) are fixed vertically on the outer wall of the active shaft (310). Notches (210) are provided on both sides of the four-sided frame (200) at the contact positions with the baffles (330). Fan blades (340) fixed to the inner wall of the bottom frame (100) are provided near the two ends of the outer wall of the active shaft (310). Fan-shaped grooves (341) are provided on the end faces of the fan blades (340) near the filter frames (320). Multiple sets of hemispheres (342) are fixed in the fan-shaped grooves (341). Two sets of drive motors (350) for driving the active shaft (310) are assembled on the rear surface of the bottom frame (100). Multiple sets of partitions (360) are slidably provided inside the filter frame (320). Multiple sets of semicircular grooves (361) are equidistantly provided on the side of two adjacent sets of partitions (360). A clearance groove (363) communicating with the semicircular groove (361) is provided on the inner wall of the partition (360). An arc strip (362) is fixed on the inner wall of the clearance groove (363) near the inner wall of the semicircular groove (361). Frame grooves (321) are provided at both the front and rear ends of the filter frame (320). A ball head rod (370) fixed to the end of the partition (360) is provided in the frame groove (321). A constraint plate (322) fixed to the inner wall of the frame groove (321) is slidably sleeved on the outer wall of the ball head rod (370). A spring (371) fixed to the constraint plate (322) is assembled on the outer wall of the ball head rod (370).

2. The pomegranate juice extraction device according to claim 1, characterized in that: The pressing assembly includes a top frame (110) fixed to the top of the bottom frame (100), a pressure plate (130) is mounted directly below the top frame (110) and aligned with the four sides (200), and an electric push rod (120) is mounted on the top of the top frame (110) to drive the pressure plate (130) to rise and fall.

3. The pomegranate juice extraction device according to claim 1, characterized in that: The top of the liquid frame (150) is open, and a triangular frame is fixed at the top edge of the liquid frame (150), with a filter screen that is raised in the middle fixed inside the frame.

4. The pomegranate juice extraction device according to claim 1, characterized in that: The bottom corner of the notch (210) is provided with an arc opening (220) larger than the outer diameter of the drive shaft (310). The front and rear surfaces of the four-sided frame (200) are fixed with positioning blocks, and the inner wall of the bottom frame (100) is provided with positioning block grooves corresponding to the positioning blocks.

5. A pomegranate juice extraction device according to claim 1, characterized in that: Multiple sets of hemispheres (342) are arranged in a ring array with the center of the fan blade (340) as the base point, and the hemispheres (342) on the end faces of the two sets of fan blades (340) are arranged in a staggered manner.

6. The pomegranate juice extraction device according to claim 1, characterized in that: The bottom frame (100) is provided with a collection component (400) near the inner walls on both sides, and the side wall of the bottom frame (100) is provided with a movable door (140) for removing pomegranate peels from the collection component (400).

7. A pomegranate juice extraction device according to claim 6, characterized in that: The collecting assembly (400) includes an outer frame (410) movably mounted within a base frame (100). A cone seat (420) is fixed to the inner wall of the outer frame (410). Multiple sets of water-permeable holes are provided at the bottom of the cone seat (420). Discharge holes are reserved on the front and rear surfaces of the movable door (140) near the bottom. A sealing plug is threaded into the discharge hole. Two sets of cone strips (430) are provided above the cone seat (420). A top frame (440) is fixed to the top of the two sets of cone strips (430). An operating mechanism is provided at the contact position between the front and rear inner walls of the base frame (100) and the top frame (440). The operating groove (102) is rotatably provided with a driven ring (450). The driven ring (450) is fixed with a base rod (480) near the end face of the top frame (440) and located at an eccentric position. The outer wall of the base rod (480) is fitted with a horizontal frame (470) that slides with the operating groove (102). The bottom of the horizontal frame (470) and the top of the top frame (440) are fixed with a connecting arm (460). The center position of the driven ring (450) is fixed with a rotating rod that rotatably sets with the inner wall of the operating groove (102). The rotating rod is driven by the drive shaft (310) through a belt.

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