Underground gangue sorting, sorting and crushing belt machine

By designing an underground gangue sorting and crushing conveyor belt, which utilizes an eccentric structure and rotational power to crush large pieces of gangue, the problem of coal resource waste in underground gangue sorting and transportation has been solved, and effective crushing of gangue and recovery of coal resources have been achieved.

CN118831702BActive Publication Date: 2026-03-24甘肃华能天竣能源有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-06-28
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

There is a problem of coal resource waste in the underground gangue sorting process, especially because the large size of the gangue blocks increases the transport pressure on the belt conveyor.

Method used

Design an underground gangue sorting and crushing belt conveyor, comprising a crushing unit and an auxiliary unit. The crushing unit consists of a crushing chamber, crushing wheel, moon disc and extrusion cylinder, and achieves crushing and sorting of gangue through eccentric setting and rotational power. The auxiliary unit conveys materials through drive rollers and conveyor belt.

Benefits of technology

It effectively crushes large pieces of gangue, reduces the transportation pressure on the conveyor belt, and enables secondary recovery of coal resources inside the gangue.

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Abstract

The present application relates to the technical fields of gangue sorting in underground, especially to a gangue sorting and crushing belt machine in underground, which comprises a crushing unit and an auxiliary unit, the crushing unit comprises a crushing cavity, a crushing wheel, a moon plate and an extrusion cylinder, the crushing cavity is coaxial with the moon plate, the crushing wheel is eccentric with the moon plate, the extrusion cylinder is coaxial with the moon plate, the auxiliary unit is arranged below the crushing unit, the auxiliary unit comprises a driving roller, a conveyor belt and an I-shaped support, the driving roller is frictionally matched with the conveyor belt, and the driving roller is arranged at the bottom of the I-shaped support, the present application can crush and sort the gangue with large volume, reduce the transportation pressure of the conveyor belt, and can also recycle the coal resources in the gangue.
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Description

[0001] A conveyor belt conveyor for underground gangue sorting, transporting, and crushing. Technical Field

[0002] This invention relates to the field of underground gangue sorting and transportation technology, and in particular to an underground gangue sorting, transportation, and crushing belt conveyor. Background Technology

[0003] Coal has a very complex composition, typically consisting of organic matter, minerals, and gases. During coal formation, organic matter undergoes biochemical reactions under high temperature and pressure, gradually transforming into coal. Minerals are distributed around the organic matter particles, forming the ash in coal. Because minerals and organic matter are mixed together during coal geological formation, the rocks, sandstone, mudstone, etc., existing above, below, and at the boundaries of coal seams are collectively referred to as gangue. Gangue is waste rock produced during coal mining; its ash and other components are similar to those of the main coal seam. However, during the sorting and transportation of gangue, many gangue blocks with slightly higher coal content appear. These gangue blocks are relatively large, often increasing the pressure on belt conveyors and wasting coal resources within the gangue. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems existing in the above and / or existing underground gangue transportation, the present invention is proposed.

[0006] Therefore, the problem to be solved by this invention is to address the waste of coal resources during the gangue transportation process.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an underground gangue sorting and crushing belt conveyor, comprising: a crushing unit, the crushing unit including a crushing chamber, a crushing wheel, a moon disc, and a compression cylinder, the crushing chamber being coaxially arranged with the moon disc, the crushing wheel being eccentrically arranged with the moon disc, and the compression cylinder being coaxially arranged with the moon disc; and an auxiliary unit, the auxiliary unit being disposed below the crushing unit, the auxiliary unit including a drive roller, a conveyor belt, and an I-beam support, the drive roller being in frictional engagement with the conveyor belt, and the drive roller being disposed on both sides of the bottom of the I-beam support.

[0008] As a preferred embodiment of the underground gangue sorting and crushing belt conveyor of the present invention, the crushing chamber includes a protective cover, a sliding rod and a collection trough. The protective cover includes a feed pipe and is disposed on the side of the crushing chamber. The sliding rod is symmetrically disposed on both sides of the crushing chamber. The collection trough includes a discharge port disposed at its bottom.

[0009] As a preferred embodiment of the underground gangue sorting and crushing belt conveyor of the present invention, the crushing wheel includes a rotating slider and a cutting cylinder, wherein the rotating slider is disposed on the side of the cutting cylinder.

[0010] As a preferred embodiment of the underground gangue sorting and crushing belt conveyor of the present invention, the crushing wheel includes a rotating slider and a cutting cylinder. The rotating slider is disposed on the side of the cutting cylinder. The rotating slider includes actuating teeth and an eccentric shaft. The actuating teeth are symmetrically disposed on both sides of the rotating slider. The eccentric shaft is disposed on one side of the rotating slider. The cutting cylinder includes crushing blades, which are arranged in an array around the axis of the cutting cylinder.

[0011] As a preferred embodiment of the underground gangue sorting and crushing conveyor belt of the present invention, wherein: the moon plate is a disc-shaped structure, the moon plate includes a mating groove, a guide plate and an eccentric cavity, the mating groove is disposed on the outer edge of the moon plate, the eccentric cavity is disposed on the side away from the center of the moon plate, the eccentric cavity is a circular cavity structure, the guide plate is disposed on the side of the eccentric cavity, the guide plate is a semi-circular surrounding structure, and the guide plate is coaxially disposed with the eccentric cavity.

[0012] As a preferred embodiment of the underground gangue sorting and crushing belt conveyor of the present invention, the guide plate includes a widening plate and a guide scraper. The widening plate is disposed at the end of the guide plate, and the guide scraper is disposed on the inner and outer surfaces of the guide plate. The portion of the guide scraper near the widening plate is provided with a slope structure.

[0013] As a preferred embodiment of the underground gangue sorting and crushing belt conveyor of the present invention, wherein: the eccentric cavity includes a rotating groove, which is disposed on the outer edge of the eccentric cavity.

[0014] As a preferred embodiment of the underground gangue sorting and crushing belt conveyor of the present invention, wherein: the extrusion cylinder and the moon disk are coaxially rotated and slidably engaged, the extrusion cylinder includes a beveled cutter and a rotating toothed groove, the rotating toothed groove is disposed on the side of the extrusion cylinder, and the beveled cutter is arranged in an array around the axis of the extrusion cylinder.

[0015] As a preferred embodiment of the underground gangue sorting and crushing belt conveyor of the present invention, the I-beam support includes a mating frame and a balancing frame, the mating frame is fixedly connected to the drive roller, and the balancing frame is slidably mated to the sliding rod on the crushing chamber.

[0016] As a preferred embodiment of the underground gangue sorting and crushing belt conveyor of the present invention, the balance frame includes a balance block, a mounting frame and a drive hole. The balance block is disposed at both ends of the balance frame, the mounting frame is disposed at the axial position of the drive hole, and the drive hole is disposed on the side of the balance frame that is off-center.

[0017] The beneficial effects of this invention are as follows: In use, the mined gangue is fed into the crushing chamber through the feed pipe. Through cutting and squeezing operations, the originally large gangue blocks are crushed into small pieces, which are then collected and reused in the collection tank. A conveyor belt is installed below the collection tank. By decomposing and crushing large gangue blocks, the impact of gangue on the conveyor belt is reduced, thus reducing the transportation pressure on the conveyor belt. At the same time, it can also recycle the coal resources inside the gangue that have not been collected. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0019] Figure 1 This is a layout diagram of the conveyor belt system for sorting, transporting, and crushing gangue in the mine.

[0020] Figure 2 This is a rear view of the overall layout of the underground gangue sorting and crushing conveyor belt.

[0021] Figure 3 This is a diagram showing the internal structure of the crushing chamber of a conveyor belt conveyor for sorting and crushing gangue in an underground mine.

[0022] Figure 4 This is a front view of the crushing chamber of an underground gangue sorting and crushing conveyor belt.

[0023] Figure 5 This is a structural diagram of the crushing chamber A of the underground gangue sorting and crushing conveyor belt.

[0024] Figure 6 This is an exploded view of the internal structure of the crushing chamber of a conveyor belt for sorting and crushing gangue in an underground mine.

[0025] Figure 7 This is an exploded side view of the internal structure of the crushing chamber of an underground gangue sorting and crushing conveyor belt.

[0026] Figure 8 This is a schematic diagram of the moon disc and crushing wheel working together on a conveyor belt for sorting, transporting, and crushing gangue in an underground mine. Detailed Implementation

[0027] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0030] Example 1

[0031] Reference Figures 1-3 This is the first embodiment of the present invention. This embodiment provides an underground gangue sorting and crushing belt conveyor, including a crushing unit 100 and an auxiliary unit 200. The crushing unit 100 performs crushing operations, and the crushed gangue blocks fall into the conveyor belt on the side of the auxiliary unit 200 for conveying and collection.

[0032] Specifically, the crushing unit 100 includes a crushing chamber 101, a crushing wheel 102, a crescent disc 103, and a compression cylinder 104. The crushing chamber 101 and the crescent disc 103 are coaxially arranged, the crushing wheel 102 and the crescent disc 103 are eccentrically arranged, and the compression cylinder 104 and the crescent disc 103 are coaxially arranged. The auxiliary unit 200 is located below the crushing unit 100. The auxiliary unit 200 includes a drive roller 201, a conveyor belt 202, and an I-beam support 203. The drive roller 201 is in frictional engagement with the conveyor belt 202, and the drive roller 201 is located on both sides of the bottom of the I-beam support 203.

[0033] Furthermore, the crushing chamber 101 is the main component of the crushing unit 100, used to contain the material to be crushed. The crushing wheel 102 and the moon disc 103 are eccentrically arranged to crush the material. The extrusion cylinder 104 is coaxially arranged with the crushing chamber 101 and obtains rotational power to assist in crushing through the rotation of the crushing wheel 102.

[0034] Preferably, the drive roller 201 and the conveyor belt 202 are in frictional engagement to provide power to the conveyor belt 202 so that it can operate. The conveyor belt 202 is used to transport crushed gangue blocks and receive materials from the bottom of the crushing unit 100. The I-beam bracket 203 supports the drive roller 201 and the conveyor belt 202 to ensure their stable operation. At the same time, an external power source such as an electric motor is installed on the side of the I-beam bracket 203 and connected to the crushing wheel 102 so that the crushing wheel 102 obtains rotational torque to realize the crushing operation of gangue.

[0035] Example 2

[0036] Reference Figures 1-6 This is the second embodiment of the present invention. Based on the first embodiment, it includes: a crushing chamber 101 including a protective cover 101a, a sliding rod 101b and a collecting trough 101c. The protective cover 101a includes a feed pipe 101a-1 and is disposed on the side of the crushing chamber 101. The sliding rod 101b is symmetrically disposed on both sides of the crushing chamber 101. The collecting trough 101c includes a discharge port 101c-1 disposed at its bottom. The crushing wheel 102 includes a rotating slider 102a and a cutting cylinder 102b. The rotating slider 102a is disposed on the side of the cutting cylinder 102b.

[0037] Furthermore, the rotating slider 102a includes actuating teeth 102a-1 and an eccentric shaft 102a-2. The actuating teeth 102a-1 are symmetrically arranged on both sides of the rotating slider 102a, and the eccentric shaft 102a-2 is arranged on one side of the rotating slider 102a. The cutting cylinder 102b includes a crushing blade 102b-1, which is arranged in an array around the axis of the cutting cylinder 102b.

[0038] Specifically, the feature is that: the moon disk 103 has a disc-shaped structure, the moon disk 103 includes a mating groove 103a, a guide plate 103b and an eccentric cavity 103c, the mating groove 103a is disposed on the outer edge of the moon disk 103, the eccentric cavity 103c is disposed on the side away from the center of the moon disk 103, the eccentric cavity 103c has a circular cavity structure, the guide plate 103b is disposed on the side of the eccentric cavity 103c, the guide plate 103b has a semi-circular surrounding structure, and the guide plate 103b and the eccentric cavity 103c are coaxially arranged.

[0039] Furthermore, the guide plate 103b includes a widening plate 103b-1 and a guide scraper 103b-2. The widening plate 103b-1 is disposed at the end of the guide plate 103b, and the guide scraper 103b-2 is disposed on the inner and outer surfaces of the guide plate 103b. The portion of the guide scraper 103b-2 near the widening plate 103b-1 is provided with a slope structure. The eccentric cavity 103c includes a rotating groove 103c-1, which is disposed on the outer edge of the eccentric cavity 103c.

[0040] Furthermore, the extrusion cylinder 104 and the moon disc 103 are coaxially rotated and slidably engaged. The extrusion cylinder 104 includes a beveled cutter 104a and a rotating toothed groove 104b. The rotating toothed groove 104b is disposed on the side of the extrusion cylinder 104, and the beveled cutter 104a is arranged in an array around the axis of the extrusion cylinder 104.

[0041] Specifically, the protective cover 101a is located on the side of the crushing chamber 101 to protect the operators and equipment. The feed pipe 101a-1 is used to convey materials into the crushing chamber 101. The collection trough 101c collects the crushed materials through the discharge port 101c-1 of the crushing chamber 101 and puts the materials into the conveyor belt.

[0042] Preferably, the rotating slider 102a is disposed on the side of the cutting cylinder 102b. The torque of the external power component is obtained through the eccentric shaft 102a-2 to drive the rotating slider 102a to rotate. At the same time, the cutting cylinder 102b rotates to cut the material. It is symmetrically disposed on both sides of the rotating slider 102a and meshes with the rotating tooth groove 104b on the side of the outer ring extrusion cylinder 104, so that the extrusion cylinder 104 produces intermittent rotation operation. Due to the effect of the eccentric structure, the moon disk 103 realizes the effect of reciprocating oscillation inside the crushing chamber 101, so that the material entering the crushing chamber 101 is vibrated and swayed evenly, which is convenient for further crushing and crushing of gangue.

[0043] Preferably, the rotating slider 102a is disposed inside the eccentric cavity 103c. When the rotating slider 102a rotates, the gap between it and the guide plate 103b will contain gangue brought into it by the extrusion cylinder 104. Under the action of the widening plate 103b-1, it will produce an extrusion effect with the cutting cylinder 102b, and perform extrusion and crushing operation on the gangue blocks. The guide scraper 103b-2 outside the guide plate 103b deviates from the guide plate 103b in sequence in the direction away from the moon disk 103, so that the gangue blocks are less likely to accumulate and the crushing efficiency is improved.

[0044] Furthermore, the slope structure of the guide scraper 103b-2 near the widening plate 103b-1 helps to reduce material jamming and improve the operating efficiency of the device. The oblique cutter 104a is arranged in an array around the axis of the extrusion cylinder 104 and forms an angle with the cutting cylinder 102b. When the material is squeezed by the oblique cutter 104a and comes into contact with the cutting cylinder 102b, it helps to extend the cutting time of the oblique cutter 104a, making the decomposition and crushing of gangue more fine.

[0045] Example 3

[0046] Reference Figures 1-8This is the third embodiment of the present invention. The difference between this embodiment and the previous two embodiments is that the I-beam support 203 includes a mating frame 203a and a balancing frame 203b. The mating frame 203a is fixedly connected to the drive roller 201, and the balancing frame 203b is slidably mated with the sliding rod 101b on the crushing chamber 101.

[0047] Specifically, the balance frame 203b includes a balance block 203b-1, a mounting bracket 203b-2, and a drive hole 203b-3. The balance block 203b-1 is located at both ends of the balance frame 203b, the mounting bracket 203b-2 is located at the axial position of the drive hole 203b-3, and the drive hole 203b-3 is located on the side of the balance frame 203b that is off-center.

[0048] Combining the previous two embodiments, the rotating slider 102a is disposed on the side of the cutting cylinder 102b. The torque of the external power component is obtained through the eccentric shaft 102a-2 to drive the rotating slider 102a to rotate. At the same time, the cutting cylinder 102b rotates to cut the material. It is symmetrically disposed on both sides of the rotating slider 102a and meshes with the rotating tooth groove 104b on the side of the outer ring extrusion cylinder 104, so that the extrusion cylinder 104 produces intermittent rotation operation. Due to the effect of the eccentric structure, the moon disk 103 realizes the effect of reciprocating oscillation inside the crushing chamber 101, so that the material entering the crushing chamber 101 is vibrated and swayed evenly, which is convenient for further crushing and crushing of gangue.

[0049] Preferably, the rotating slider 102a is disposed inside the eccentric cavity 103c. When the rotating slider 102a rotates, the gap between it and the guide plate 103b will contain gangue brought into it by the extrusion cylinder 104. Under the action of the widening plate 103b-1, it will produce an extrusion effect with the cutting cylinder 102b, and perform extrusion and crushing operation on the gangue blocks. The guide scraper 103b-2 outside the guide plate 103b deviates from the guide plate 103b in sequence in the direction away from the moon disk 103, so that the gangue blocks are less likely to accumulate and the crushing efficiency is improved.

[0050] Furthermore, the slope structure of the guide scraper 103b-2 near the widening plate 103b-1 helps to reduce material jamming and improve the operating efficiency of the device. The oblique cutter 104a is arranged in an array around the axis of the extrusion cylinder 104 and forms an angle with the cutting cylinder 102b. When the material is squeezed by the oblique cutter 104a and comes into contact with the cutting cylinder 102b, it helps to extend the cutting time of the oblique cutter 104a, making the decomposition and crushing of gangue more fine.

[0051] In use, the eccentric shaft 102a-2 on the side of the rotating slider 102a is connected to an external power source, causing the rotating slider 102a to start rotating. When the rotating slider 102a first drives the moon disc 103 to reciprocate, the balance blocks 203b-1 at both ends of the balance frame 203b on the I-beam bracket 203 slide against the sliding rod 101b, causing the sliding rod 101b to constrain the balance blocks 203b-1 to only reciprocate along a straight line. Therefore, the reciprocating motion of the crushing chamber 101 helps to even out the material fed into the crushing chamber 101. Simultaneously, due to the sliding engagement between the moon disc 103 and the crushing chamber 101, the moon disc 103 reciprocates up and down around its other eccentric point. During this up-and-down reciprocating motion, it guides the scraper 103. b-2 performs a crushing action on the material inside the extrusion cylinder 104, which helps to initially crush the gangue blocks. When the extrusion cylinder 104 is rotated, the gangue that fails to pass through the oblique cutter 104a is pushed into the gap between the cutting cylinder 102b and the extrusion cylinder 104 for further crushing. When the rotation reaches the position of the widening plate 103b-1, the extrusion of the material by the widening plate 103b-1 achieves further crushing. After crushing, the material falls into the conveyor belt 202 through the discharge port 101c-1 below the collection trough 101c, so that the material is further collected. Therefore, this device can crush and collect large-volume gangue, reduce the transportation pressure of the conveyor belt, and at the same time, it can recycle the coal resources inside the gangue that have not been collected.

[0052] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A conveyor belt conveyor for sorting, transporting, and crushing gangue in underground mines, characterized in that: include, A crushing unit (100) includes a crushing chamber (101), a crushing wheel (102), a moon disk (103), and a compression cylinder (104). The crushing chamber (101) and the moon disk (103) are coaxially arranged. The crushing wheel (102) and the moon disk (103) are eccentrically arranged. The compression cylinder (104) and the moon disk (103) are coaxially arranged. The crushing wheel (102) includes a rotating slider (102a) and a cutting cylinder (102b). The rotating slider (102a) is located on the side of the cutting cylinder (102b). The lunar disk (103) has a disc-shaped structure. The lunar disk (103) includes a mating groove (103a), a guide plate (103b), and an eccentric cavity (103c). The mating groove (103a) is located on the outer edge of the lunar disk (103). The eccentric cavity (103c) is located on the side away from the center of the lunar disk (103). The eccentric cavity (103c) has a circular cavity structure. The guide plate (103b) is located on the side of the eccentric cavity (103c). The structure is a semi-circular enclosure. The guide plate (103b) and the eccentric cavity (103c) are coaxially arranged. The guide plate (103b) includes a widening plate (103b-1) and a guide scraper (103b-2). The widening plate (103b-1) is located at the end of the guide plate (103b), and the guide scraper (103b-2) is located on the inner and outer surfaces of the guide plate (103b). The portion of the guide scraper (103b-2) near the widening plate (103b-1) has a slope structure. The extrusion cylinder (104) is coaxially slidably coupled to the moon disk (103). The extrusion cylinder (104) includes a beveled cutter (104a) and a rotating toothed groove (104b). The rotating toothed groove (104b) is disposed on the side of the extrusion cylinder (104), and the beveled cutter (104a) is arranged in an array around the axis of the extrusion cylinder (104). An auxiliary unit (200) is disposed below the crushing unit (100). The auxiliary unit (200) includes a drive roller (201), a conveyor belt (202), and an I-beam support (203). The drive roller (201) is in frictional engagement with the conveyor belt (202). The drive roller (201) is disposed on both sides of the bottom of the I-beam support (203).

2. The underground gangue sorting and crushing belt conveyor as described in claim 1, characterized in that: The crushing chamber (101) includes a protective cover (101a), a sliding rod (101b), and a collecting trough (101c). The protective cover (101a) includes a feed pipe (101a-1) and is disposed on the side of the crushing chamber (101). The sliding rod (101b) is symmetrically disposed on both sides of the crushing chamber (101). The collecting trough (101c) includes a discharge port (101c-1) disposed at its bottom.

3. The underground gangue sorting and crushing belt conveyor as described in claim 1, characterized in that: The rotating slider (102a) includes actuating teeth (102a-1) and an eccentric shaft (102a-2). The actuating teeth (102a-1) are symmetrically arranged on both sides of the rotating slider (102a), and the eccentric shaft (102a-2) is arranged on one side of the rotating slider (102a). The cutting cylinder (102b) includes a crushing blade (102b-1), which is arranged in an array around the axis of the cutting cylinder (102b).

4. The underground gangue sorting, transporting, and crushing belt conveyor as described in claim 1, characterized in that: The eccentric cavity (103c) includes a rotating groove (103c-1), which is disposed on the outer edge of the eccentric cavity (103c).

5. The underground gangue sorting, transporting, and crushing belt conveyor as described in claim 1, characterized in that: The I-beam support (203) includes a mating frame (203a) and a balancing frame (203b). The mating frame (203a) is fixedly connected to the drive roller (201), and the balancing frame (203b) is slidably mated with the sliding rod (101b) on the crushing chamber (101).

6. The underground gangue sorting and crushing belt conveyor as described in claim 5, characterized in that: The balancing frame (203b) includes a balancing block (203b-1), a mounting bracket (203b-2), and a drive hole (203b-3). The balancing block (203b-1) is disposed at both ends of the balancing frame (203b). The mounting bracket (203b-2) is disposed at the axial position of the drive hole (203b-3). The drive hole (203b-3) is disposed on the side of the balancing frame (203b) that is off-center.

Citation Information

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