A bag filter for a pigment filtering device

Abstract

The application relates to the technical field of pigment filtering, in particular to a bag filter for a pigment filtering device, which comprises a bag filter body, a liquid inlet pipe fixedly connected to the surface of the bag filter body, a mesh basket body rotatably connected to the inside of the bag filter body, and a filter bag body fixedly connected to the inner surface of the mesh basket body; a speed increasing mechanism is arranged on the surface of the bag filter body and used for increasing the flow speed of the pigment liquid; the air generated in the air bellow flows into each flow-through frame through the indirect pipe and the air pipe respectively; the air in the flow-through frame sprays air to the outlet end of the speed increasing pipe through two spray pipes, so that the outlet end of the speed increasing pipe forms negative pressure to generate suction force, the pigment liquid in the transition frame is then rapidly sprayed out of the speed increasing pipe, the flow speed of the pigment liquid flowing into the filter bag body is improved, and the filtering time of the filter bag body for the pigment liquid is shortened.

Description

Technical Field

[0001] This invention relates to the field of pigment filtration technology, and in particular to a bag filter for a pigment filtration device. Background Technology

[0002] With the rapid development of the economy and society, people's living standards have been improving year by year, and their requirements for the ingredients of additives used in daily life are also getting higher and higher. Currently, there are two main categories of colorants or pigments used: one is synthetic pigments that meet technical and safety requirements, and the other is natural pigments extracted from natural plants or animals. The use of natural pigments as food, pharmaceutical, and cosmetic additives or colorants is receiving increasing attention, especially in developed countries and regions, where plant colorants that come into contact with the human body must be non-toxic and harmless natural pigments. Generally, the pigment production and processing process involves raw material screening → washing → extraction → Filtration → Concentration → Product Packaging; In the filtration process, bag filters are used to filter pigments. Bag filters are a type of multi-purpose filtration equipment with novel structure, small size, simple and flexible operation, energy saving, high efficiency, closed operation, and strong applicability; Bag filters are a new type of filtration system; Inside the bag filter, a metal mesh basket supports the filter bag. Liquid flows in through the inlet, is filtered by the filter bag, and flows out through the outlet, while impurities are intercepted in the filter bag; In existing pigment filtration devices using bag filters, the flow rate of pigment liquid into the filter bag is relatively slow, resulting in slower filtration of pigment liquid by the filter bag and increasing the filtration time of the bag filter. Summary of the Invention

[0003] The purpose of this invention is to provide a bag filter for a pigment filtration device to solve the above-mentioned problems and improve the problem of slow flow rate of pigment liquid into the filter bag.

[0004] The present invention achieves the above-mentioned objective through the following technical solution: a bag filter for a pigment filtration device, comprising: a bag filter body, an inlet pipe fixedly connected to the surface of the bag filter body, a mesh basket body rotatably connected inside the bag filter body, and a filter bag body fixedly connected to the inner surface of the mesh basket body; an acceleration mechanism for increasing the flow rate of pigment liquid disposed on the surface of the bag filter body; and a driving mechanism for driving the acceleration mechanism to work disposed on the surface of the bag filter body.

[0005] Preferably, the speed-increasing mechanism includes a transition frame fixedly connected inside the bag filter body. One end of the inlet pipe is connected to the surface of the transition frame. The bottom end of the transition frame is connected to several speed-increasing tubes. The bottom end of the transition frame is fixedly connected to several flow frames. The bottom end of the flow frames is connected to two nozzles. Because the speed-increasing tubes are frustum-shaped and located on the inner surface of the flow frames, the air in the flow frames is sprayed onto the outlet end of the speed-increasing tubes through the two nozzles, creating a negative pressure at the outlet end of the speed-increasing tubes to generate suction. This causes the pigment liquid in the transition frame to be rapidly ejected from the speed-increasing tubes, increasing the flow rate of the pigment liquid into the filter bag body, thereby reducing the filtration time of the pigment liquid by the filter bag body.

[0006] Preferably, an indirect pipe is fixedly connected to the bottom end of the transition frame, and an air pipe is connected to the surface of the indirect pipe. The end of the air pipe away from the indirect pipe is connected to the surface of the flow frame. Air in the indirect pipe flows to the three flow frames through the three air pipes respectively, thereby ensuring the flow rate of the pigment liquid in the speed-increasing pipe.

[0007] Preferably, an air box is fixedly connected to the surface of the bag filter body, the surface of the air box is connected to an indirect pipe, a piston push rod is slidably connected to the surface of the air box, a sliding frame is fixedly connected to the bottom of the air box, a slider is slidably connected inside the sliding frame, the top of the slider is fixedly connected to the bottom of the piston push rod, a reciprocating screw is rotatably connected inside the sliding frame, and the inside of the slider is slidably connected to the surface of the reciprocating screw. The rotation of the reciprocating screw drives the piston push rod to move through the slider. When the piston push rod moves, air is generated inside the air box, which then flows through the indirect pipe and air pipe to each flow frame.

[0008] Preferably, a fixing frame is fixedly connected to the top of the basket body, and a stirring shaft is rotatably connected inside the bag filter body. The fixing frame rotates to drive the basket body to rotate, and the stirring shaft rotates in the opposite direction to the basket body, thereby causing the pigment liquid to flow and filter rapidly within the filter bag body, improving the working efficiency of the pigment liquid in the bag filter.

[0009] Preferably, a limiting ring is fixedly connected to the bottom end of the basket body, and a limiting groove is formed in the inner bottom wall of the bag filter body. The bottom end of the limiting ring is rotatably connected to the inside of the limiting groove. The limiting ring rotates in the limiting groove to limit the basket body, ensuring the stability of the basket body during rotation and preventing the basket body from being suspended in the bag filter body.

[0010] Preferably, the driving mechanism includes a protective box fixedly connected inside the bag filter body. A first gear is rotatably connected inside the protective box. A second gear and a fourth gear are respectively meshed on the surface of the first gear. The top end of the stirring shaft passes through the fixing frame and is fixedly connected to the bottom end of the second gear. The surfaces of the second gear and the fourth gear are rotatably connected inside the protective box. The rotation of the fourth gear drives the rotation of the second gear through the first gear. The rotation of the second gear drives the rotation of the stirring shaft, thereby accelerating the flow of the pigment liquid inside the filter bag body.

[0011] Preferably, the surface of the fourth gear is meshed with the third gear, and the bottom end of the third gear is fixedly connected to the connecting ring. The bottom end of the connecting ring is fixedly connected to the top of the fixing frame. The rotation of the fourth gear drives the connecting ring to rotate through the third gear. The rotation of the connecting ring drives the basket body and the filter bag body to rotate synchronously, thereby causing the pigment liquid to flow in the filter bag body and reducing the time for the filter bag body to filter the pigment liquid.

[0012] Preferably, a large conical gear is fixedly connected to the top of the fourth gear, and a small conical gear is meshed with the surface of the large conical gear. The rotation of the small conical gear drives the fourth gear to rotate through the large conical gear, thereby causing the filter bag body and the stirring shaft to rotate synchronously and in opposite directions, so that the pigment liquid flows and filters quickly in the filter bag body, avoiding the slow flow and filtration of the pigment liquid in the filter bag body.

[0013] Preferably, one end of the small bevel gear passes through the protective box and the bag filter body in sequence and is fixedly connected to a large pulley; one end of the reciprocating screw passes through the sliding frame and is fixedly connected to a small pulley; a belt is connected to the surfaces of the large pulley and the small pulley; a motor is fixedly connected to the surface of the bag filter body; the output shaft of the motor is fixedly connected to one end of the large pulley; the rotation of the motor's output shaft is used to drive the filter bag body and the stirring shaft to rotate synchronously and in opposite directions and to drive the piston push rod to move reciprocally, thereby increasing the flow rate of the pigment liquid in the bag filter.

[0014] The beneficial effects of this invention are:

[0015] 1. By setting up an acceleration mechanism, the reciprocating screw rotates and drives the piston push rod to move back and forth through the slider, generating air in the bellows. The air generated in the bellows flows into the indirect pipe, and the air in the indirect pipe flows to each flow frame through three air pipes. At this time, the pigment liquid in the inlet pipe flows to each acceleration tube through the transition frame. Because the acceleration tube is truncated cone-shaped and located on the inner surface of the flow frame, the air in the flow frame is sprayed onto the outlet end of the acceleration tube through two nozzles, creating a negative pressure at the outlet end of the acceleration tube to generate suction. This causes the pigment liquid in the transition frame to be quickly ejected from the acceleration tube, increasing the flow rate of the pigment liquid into the filter bag body. This drives the fixed frame to rotate in the opposite direction to the stirring shaft. The rotation of the fixed frame causes the mesh basket body and the filter bag body to rotate synchronously, allowing the pigment liquid to flow and filter quickly in the filter bag body, thereby reducing the filtration time of the pigment liquid in the filter bag body and improving the working efficiency of the pigment liquid filtration in the bag filter.

[0016] 2. By setting up a drive mechanism, the output shaft of the motor rotates, driving the large pulley to rotate. The large pulley rotates, driving the belt drive and the small bevel gear to rotate. The belt drive drives the reciprocating screw to rotate through the small pulley. The reciprocating screw rotates, which in turn generates air in the air box. The small bevel gear rotates, driving the fourth gear to rotate through the large bevel gear. The fourth gear rotates, driving the first and third gears to rotate. The first gear rotates, driving the second gear to rotate in the opposite direction to the fourth gear. The second gear rotates, driving the stirring shaft to rotate. The third gear rotates, driving the fixing frame to rotate through the connecting ring. The fixing frame rotates, driving the basket body and the filter bag body to rotate synchronously. This causes the filter bag body to rotate in the opposite direction to the stirring shaft, improving the practicality of using the bag filter to filter pigments. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the liquid inlet pipe, basket body, filter bag body, speed-increasing mechanism and driving mechanism of the present invention.

[0019] Figure 3 This is a schematic diagram of the liquid inlet pipe, speed-increasing mechanism, and drive mechanism of the present invention;

[0020] Figure 4 This is a cross-sectional view of the flow frame and nozzle of the present invention;

[0021] Figure 5 This is a cross-sectional view of the basket body and the filter bag body of the present invention;

[0022] Figure 6 This is a schematic diagram of the fixed frame, stirring shaft and driving mechanism of the present invention;

[0023] Figure 7This is a cross-sectional view of the second and third gears of the present invention;

[0024] Figure 8 This is a cross-sectional view of the bag filter body of the present invention;

[0025] Figure 9 This is a schematic diagram of the liquid inlet pipe, basket body, speed-increasing mechanism and drive mechanism of the present invention.

[0026] In the diagram: 1. Bag filter body; 2. Inlet pipe; 3. Basket body; 4. Filter bag body; 5. Speed-increasing mechanism; 501. Transition frame; 502. Speed-increasing pipe; 503. Flow frame; 504. Nozzle; 505. Air pipe; 506. Air box; 507. Piston push rod; 508. Sliding frame; 509. Sliding block; 5010. Reciprocating screw; 5011. Fixing frame; 5012. Stirring shaft; 5013. Indirect pipe; 5014. Limiting ring; 5015. Limiting groove; 6. Drive mechanism; 601. Protective box; 602. First gear; 603. Second gear; 604. Third gear; 605. Fourth gear; 606. Large bevel gear; 607. Small bevel gear; 608. Large pulley; 609. Small pulley; 6010. Belt; 6011. Motor; 6012. Connecting ring. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] In practical implementation: such as Figure 1-9As shown, a bag filter for a pigment filtration device includes: a bag filter body 1, an inlet pipe 2 fixedly connected to the surface of the bag filter body 1, a mesh basket body 3 rotatably connected to the inside of the bag filter body 1, and a filter bag body 4 fixedly connected to the inner surface of the mesh basket body 3; and an acceleration mechanism 5, which is disposed on the surface of the bag filter body 1 to increase the flow rate of the pigment liquid.A drive mechanism 6, used to drive the speed-increasing mechanism 5, is disposed on the surface of the bag filter body 1. The speed-increasing mechanism 5 includes a transition frame 501 fixedly connected inside the bag filter body 1. One end of the inlet pipe 2 is connected to the surface of the transition frame 501. Several speed-increasing pipes 502 are connected to the bottom end of the transition frame 501. Several flow frames 503 are fixedly connected to the bottom end of the transition frame 501. Two nozzles 504 are connected to the bottom end of the flow frames 503. An indirect pipe 5013 is fixedly connected to the bottom end of the transition frame 501. An air pipe 505 is connected to the surface of the indirect pipe 5013. The end of the air pipe 505 away from the indirect pipe 5013 is connected to the surface of the flow frame 503. The bag filter body 1... A bellows 506 is fixedly connected to the surface of the bag filter body 1. The surface of the bellows 506 is connected to the indirect pipe 5013. A piston push rod 507 is slidably connected to the surface of the bellows 506. A sliding frame 508 is fixedly connected to the bottom of the bellows 506. A slider 509 is slidably connected inside the sliding frame 508. The top of the slider 509 is fixedly connected to the bottom of the piston push rod 507. A reciprocating screw 5010 is rotatably connected inside the sliding frame 508. The slider 509 is slidably connected to the surface of the reciprocating screw 5010. A fixing frame 5011 is fixedly connected to the top of the basket body 3. A stirring shaft 5012 is rotatably connected inside the bag filter body 1. The drive mechanism 6 includes a protective box 60 fixedly connected inside the bag filter body 1. 1. A first gear 602 is rotatably connected inside the protective box 601. The surfaces of the first gear 602 are respectively meshed with a second gear 603 and a fourth gear 605. The top end of the stirring shaft 5012 passes through the fixing frame 5011 and is fixedly connected to the bottom end of the second gear 603. The surfaces of the second gear 603 and the fourth gear 605 are both rotatably connected to the inside of the protective box 601. The surface of the fourth gear 605 is meshed with a third gear 604. The bottom end of the third gear 604 is fixedly connected to a connecting ring 6012. The bottom end of the connecting ring 6012 is fixedly connected to the top of the fixing frame 5011. One end of the small bevel gear 607 passes through the protective box 601 and the bag filter body 1 in sequence and is fixedly connected to a large leather belt. A pulley 608 is attached to a reciprocating screw 5010. One end of the screw passes through the slide frame 508 and is fixedly connected to a small pulley 609. A belt 6010 is connected to the surface of the large pulley 608 and the small pulley 609. A motor 6011 is fixedly connected to the surface of the bag filter body 1. The output shaft of the motor 6011 is fixedly connected to one end of the large pulley 608. (The reciprocating screw 5010 is a screw that enables the slider 509 to reciprocate without changing the direction of rotation of the main shaft. The reciprocating screw 5010 is represented by two threaded grooves with the same pitch and opposite directions of rotation, connected at both ends by a transition curve. Through the rotation of the screw, the side of the spiral groove pushes the slider 509 placed in the spiral groove to perform axial reciprocating motion.)

[0029] When filtration of the pigment liquid is required, motor 6011 is started. The output shaft of motor 6011 rotates, driving large pulley 608 to rotate. The rotation of large pulley 608 drives belt 6010, which in turn drives small bevel gear 607 to rotate. Belt 6010 drives small pulley 609 to rotate. The rotation of small pulley 609 drives reciprocating screw 5010 to rotate. The rotation of reciprocating screw 5010 drives slider 509 to move within slide frame 508. The movement of slider 509 drives piston push rod 507 to reciprocate. As the push rod 507 reciprocates, it generates air within the bellows 506. This air flows into the indirect pipe 5013, and through three air pipes 505, it flows into each flow frame 503. Meanwhile, the pigment liquid in the inlet pipe 2 flows through the transition frame 501 into each speed-increasing pipe 502. Because the speed-increasing pipe 502 is frustum-shaped and located on the inner surface of the flow frame 503, the air within the flow frame 503 is agitated by two nozzles 504. Air is sprayed at the outlet end, creating negative pressure at the outlet end of the speed-increasing tube 502 to generate suction. This causes the pigment liquid in the transition frame 501 to be rapidly ejected from the speed-increasing tube 502, increasing the flow rate of the pigment liquid into the filter bag body 4. The rotation of the small conical gear 607 drives the rotation of the large conical gear 606, which in turn drives the rotation of the fourth gear 605. The rotation of the fourth gear 605 drives the rotation of the first gear 602 and the third gear 604. The rotation of the first gear 602 drives the second gear 603 towards... The fourth gear 605 rotates in the opposite direction, the second gear 603 rotates to drive the stirring shaft 5012 to rotate, and the third gear 604 rotates to drive the fixed frame 5011 to rotate through the connecting ring 6012. The rotation of the fixed frame 5011 drives the mesh basket body 3 and the filter bag body 4 to rotate synchronously, thereby causing the filter bag body 4 to rotate in the opposite direction to the stirring shaft 5012, so that the pigment liquid flows and filters quickly in the filter bag body 4, thereby reducing the time for the filter bag body 4 to filter the pigment liquid and improving the working efficiency of the pigment liquid in the bag filter.

[0030] like Figure 5 , Figure 8 and Figure 9 As shown, a limiting ring 5014 is fixedly connected to the bottom end of the basket body 3. A limiting groove 5015 is opened in the inner bottom wall of the bag filter body 1. The bottom end of the limiting ring 5014 is rotatably connected to the inside of the limiting groove 5015. The rotation of the basket body 3 drives the limiting ring 5014 to rotate in the limiting groove 5015. The rotation of the limiting ring 5014 in the limiting groove 5015 is used to limit the basket body 3, ensure the stability of the basket body 3 during rotation, and prevent the basket body 3 from being suspended in the bag filter body 1.

[0031] like Figure 6-7As shown, a large conical gear 606 is fixedly connected to the top of the fourth gear 605, and a small conical gear 607 is meshed with the surface of the large conical gear 606. The rotation of the small conical gear 607 drives the fourth gear 605 to rotate through the large conical gear 606, thereby causing the filter bag body 4 and the stirring shaft 5012 to rotate synchronously and in opposite directions, thereby increasing the flow rate of the pigment liquid in the filter bag body 4.

[0032] In use, when the pigment liquid needs to be filtered, the motor 6011 is started. The output shaft of the motor 6011 rotates, driving the large pulley 608 to rotate. The rotation of the large pulley 608 drives the belt 6010 to drive the small bevel gear 607 to rotate. The belt 6010 drives the reciprocating screw 5010 to rotate via the small pulley 609. The rotation of the reciprocating screw 5010 drives the piston rod 507 to reciprocate via the slider 509. During the reciprocating movement, the piston rod 507... Air is generated inside the bellows 506 and flows into the indirect pipe 5013. The air in the indirect pipe 5013 flows through three air pipes 505 to each flow frame 503. Meanwhile, the pigment liquid in the inlet pipe 2 flows through the transition frame 501 to each speed-increasing pipe 502. Because the speed-increasing pipe 502 is frustum-shaped and located on the inner surface of the flow frame 503, the air in the flow frame 503 is introduced through two nozzles 504 to the outlet end of the speed-increasing pipe 502. Air is sprayed to create negative pressure at the outlet of the speed-increasing tube 502, generating suction. This causes the pigment liquid in the transition frame 501 to be rapidly ejected from the speed-increasing tube 502, increasing the flow rate of the pigment liquid into the filter bag body 4. The rotation of the small conical gear 607 drives the fourth gear 605 to rotate via the large conical gear 606. The rotation of the fourth gear 605 drives the first gear 602 and the third gear 604 to rotate. The rotation of the first gear 602 drives the second gear 603 to rotate in the opposite direction to the fourth gear 605. The rotation of the second gear 603 drives the stirring shaft 5012 to rotate. The rotation of the third gear 604 drives the fixing frame 5011 to rotate via the connecting ring 6012. The rotation of the fixing frame 5011 drives the mesh basket body 3 and the filter bag body 4 to rotate synchronously. This causes the filter bag body 4 to rotate in the opposite direction to the stirring shaft 5012, allowing the pigment liquid to flow and filter rapidly within the filter bag body 4. This reduces the filtration time of the pigment liquid within the filter bag body 4 and improves the filtration efficiency of the pigment liquid in the bag filter.

[0033] It should be noted that the bellows 506, piston push rod 507 and motor 6011 mentioned above are all components with relatively mature existing technology. The specific model can be selected according to actual needs. At the same time, the motor 6011 can be powered by the built-in power supply or by the mains power. The specific power supply method is selected according to the situation and will not be elaborated here.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A bag filter for a pigment filtration device, characterized in that, include: A bag filter body (1) is fixedly connected to an inlet pipe (2) on its surface. A mesh basket body (3) is rotatably connected inside the bag filter body (1). A filter bag body (4) is fixedly connected to the inner surface of the mesh basket body (3). The speed-increasing mechanism (5) is provided on the surface of the bag filter body (1) to increase the flow rate of the pigment liquid; The drive mechanism (6), which is used to drive the speed-increasing mechanism (5), is disposed on the surface of the bag filter body (1); The speed-increasing mechanism (5) includes a transition frame (501) fixedly connected inside the bag filter body (1). One end of the liquid inlet pipe (2) is connected to the surface of the transition frame (501). The bottom end of the transition frame (501) is connected to several speed-increasing pipes (502). The bottom end of the transition frame (501) is fixedly connected to several flow frames (503). The bottom end of the flow frames (503) is connected to two nozzles (504). The bottom end of the transition frame (501) is fixedly connected to an indirect pipe (5013), and the surface of the indirect pipe (5013) is connected to an air pipe (505). The end of the air pipe (505) away from the indirect pipe (5013) is connected to the surface of the flow frame (503). The surface of the bag filter body (1) is fixedly connected to a bellows (506), the surface of the bellows (506) is connected to an indirect pipe (5013), and a piston push rod (507) is slidably connected to the surface of the bellows (506).

2. A bag filter for a pigment filtration device according to claim 1, characterized in that: The bottom of the bellows (506) is fixedly connected to a sliding frame (508), and a slider (509) is slidably connected inside the sliding frame (508). The top of the slider (509) is fixedly connected to the bottom of the piston push rod (507). A reciprocating screw (5010) is rotatably connected inside the sliding frame (508), and the inside of the slider (509) is slidably connected to the surface of the reciprocating screw (5010).

3. A bag filter for a pigment filtration device according to claim 2, characterized in that: The top of the basket body (3) is fixedly connected to a fixing frame (5011), and the inside of the bag filter body (1) is rotatably connected to a stirring shaft (5012).

4. A bag filter for a pigment filtration device according to claim 1, characterized in that: The bottom end of the basket body (3) is fixedly connected to a limiting ring (5014), and the inner bottom wall of the bag filter body (1) is provided with a limiting groove (5015). The bottom end of the limiting ring (5014) is rotatably connected to the inside of the limiting groove (5015).

5. A bag filter for a pigment filtration device according to claim 3, characterized in that: The drive mechanism (6) includes a protective box (601) fixedly connected inside the bag filter body (1). A first gear (602) is rotatably connected inside the protective box (601). A second gear (603) and a fourth gear (605) are respectively meshed on the surface of the first gear (602). The top end of the stirring shaft (5012) passes through the fixing frame (5011) and is fixedly connected to the bottom end of the second gear (603). The surfaces of the second gear (603) and the fourth gear (605) are rotatably connected inside the protective box (601).

6. A bag filter for a pigment filtration device according to claim 5, characterized in that: The surface of the fourth gear (605) is meshed with the third gear (604), and the bottom end of the third gear (604) is fixedly connected to the connecting ring (6012), and the bottom end of the connecting ring (6012) is fixedly connected to the top of the fixing frame (5011).

7. A bag filter for a pigment filtration device according to claim 6, characterized in that: The top of the fourth gear (605) is fixedly connected to a large bevel gear (606), and the surface of the large bevel gear (606) is meshed with a small bevel gear (607).

8. A bag filter for a pigment filtration device according to claim 7, characterized in that: One end of the small bevel gear (607) passes through the protective box (601) and the bag filter body (1) and is fixedly connected to a large pulley (608). One end of the reciprocating screw (5010) passes through the slide frame (508) and is fixedly connected to a small pulley (609). The surfaces of the large pulley (608) and the small pulley (609) are connected by a belt (6010). The surface of the bag filter body (1) is fixedly connected to a motor (6011). The output shaft of the motor (6011) is fixedly connected to one end of the large pulley (608).

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