A ore placement device

Abstract

This invention provides an ore placement device, including a guide plate assembly and a support mechanism. The guide plate assembly includes an upper guide plate and a lower guide plate, with several positioning sleeves connected between the upper and lower guide plates. A support rod is connected to the side of the lower guide plate opposite to the upper guide plate. The support rod extends from the lower guide plate towards the upper guide plate and partially protrudes beyond the upper guide plate. The support rod is axially movable and connected within the positioning sleeves, generating frictional resistance within the positioning sleeves. This frictional resistance is greater than the weight of the ore. When the ore is placed on the support rods and a vertical pressure is applied, the vertical pressure combines with the weight of the ore, causing the support rods to overcome the frictional resistance and move axially downward. Different support rods contact different positions on the ore, resulting in varying degrees of axial downward movement and forming irregular grooves. This allows for quick and effective flat placement of the ore, with extremely low operational difficulty, thus improving the efficiency of crushing work index testing.

Description

Technical Field

[0001] This invention relates to the field of ore processing technology, and in particular to an ore placement device. Background Technology

[0002] For ore production and processing, the first consideration in selecting crushing equipment is the mechanical properties of the ore raw material to be crushed. Since F.C. Bond introduced the concept of the work index in 1951, the crushing work index (Wi) has been widely recognized and adopted in the global crushing industry. Currently, not only is the crushing work index (Wi) used in the design of conventional crushing processes and equipment selection, but it is also used or referenced in the selection and calculation of other equipment such as autogenous (semi-autogenous) mills, roller mills, roller presses (high-pressure roller mills), and vertical shaft impact crushers. The crushing work index (Wi) has become an indispensable and important parameter and indicator in the design and application of crushing engineering.

[0003] The Bond Work Index (Wi), also known as the Impact Energy Index, is an indicator that measures the energy consumed in crushing ore under impact (e.g., in a crusher). The magnitude of the Bond Work Index reflects the ease with which the ore can be crushed and is one of the criteria for ore crushability. To obtain an accurate Bond Work Index (Wi), it is necessary to conduct experiments using a Bond Work Index testing machine. This machine uses double pendulums to strike the ore, creating relatively parallel surfaces. Therefore, to ensure that the ore surfaces are relatively parallel to the pendulum hammers, the ore needs to be leveled during placement. However, since ores are produced by blasting and are irregularly shaped, achieving a level placement of the ore during the experiment becomes a significant challenge.

[0004] Currently, manufacturers and laboratories use a flat plate to place the ore on the plate, and then place small stones or other items under the ore for support to make the ore flat. However, this method of placement is extremely difficult to operate and has low placement efficiency.

[0005] Invention Internal

[0006] In view of the shortcomings of the prior art, the purpose of this invention is to provide an ore placement device, which aims to solve the technical problem in the prior art that it is impossible to quickly and effectively complete the flat placement of irregularly shaped ores when conducting crushing work index tests.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0008] An ore placement device includes a guide plate assembly and a support mechanism. The support mechanism supports and fixes the guide plate assembly. The guide plate assembly includes an upper guide plate and a lower guide plate. A plurality of positioning sleeves are connected between the upper guide plate and the lower guide plate. The positioning sleeves are evenly distributed in an array. A support rod is connected to the side of the lower guide plate facing away from the upper guide plate. The support rod extends from the lower guide plate toward the upper guide plate and partially protrudes beyond the upper guide plate. The support rod is axially movable and connected within the positioning sleeves. The support rod is used to carry ore. The support rod forms frictional resistance within the positioning sleeves. The frictional resistance is greater than the weight of the ore. When the ore is placed on the support rod, vertical pressure is applied to the ore to cause the support rod to move axially downward.

[0009] Compared with the prior art, the beneficial effects of the present invention are as follows: By setting a plurality of support rods within a plurality of positioning sleeves, when it is necessary to place irregular ore, the ore is placed on a plurality of support rods. At this time, because the frictional resistance generated by the support rods within the positioning sleeves is greater than the weight of the ore, the support rods do not shift. When vertical pressure is applied to the ore, the vertical pressure combines with the weight of the ore, causing the support rods to overcome the frictional resistance and move axially downward. Due to the irregular shape of the ore, different support rods contact different positions of the ore, and different support rods move axially downward to different degrees, thereby forming irregular grooves. By adopting the above structure, the ore can be placed flat quickly and effectively, the operation difficulty is extremely low, and the efficiency of crushing work index testing is improved.

[0010] Furthermore, the support mechanism includes a plurality of guide screws, the guide screws are connected to the side of the upper guide plate facing away from the lower guide plate, the plurality of guide screws are arranged around the outer edge of the upper guide plate, the guide screws extend from the upper guide plate toward the lower guide plate, and partially protrude from the lower guide plate.

[0011] Furthermore, the ore placement device also includes a limiting mechanism, which includes a cap nut and a nut assembly. One end of the support rod is connected to the cap nut, and the nut assembly is sleeved on the support rod. The nut assembly includes a first nut, a second nut, and a third nut. The cap nut and the first nut are located on opposite sides of the upper guide plate, and the second nut and the third nut are located on opposite sides of the lower guide plate.

[0012] Furthermore, the positioning sleeve is provided with a number of rubber rings, and the rubber rings are sleeved on the outside of the support rod, with the inner sidewall of the rubber rings forming the frictional resistance between the support rod and the support rod.

[0013] Furthermore, the positioning sleeve has several resistance grooves, and the rubber rings are arranged in the resistance grooves. The resistance grooves are coaxially arranged with the positioning sleeve.

[0014] Furthermore, the rubber ring is made of nitrile wear-resistant material.

[0015] Furthermore, the frictional resistance formed between the inner wall of the rubber ring and the support rod is calculated by the following formula: F = 2πuT, where F is the frictional resistance, u is the friction coefficient of the rubber ring, and T is the expansion force generated by the inner wall of the rubber ring after the rubber ring is fitted onto the support rod.

[0016] Furthermore, the ore placement device also includes a reset mechanism for resetting the support rod.

[0017] Furthermore, the reset mechanism is a movable plate, which is sleeved on the outside of several guide screws, and the movable plate can slide along the axial direction of the guide screws. The lower guide plate is located between the upper guide plate and the movable plate.

[0018] Furthermore, the ore placement device also includes a stabilization mechanism, which includes a first connecting rod and a second connecting rod. The opposite sidewalls of the movable plate are respectively connected to the first connecting rod and the second connecting rod. The end of the first connecting rod away from the movable plate is rotatably connected to a first support rod, and the end of the second connecting rod away from the movable plate is rotatably connected to a second support rod. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the ore placement device in an embodiment of the present invention;

[0020] Figure 2 for Figure 1 Disassembly diagram of the positioning sleeve;

[0021] Explanation of key component symbols:

[0022]

[0023]

[0024] The following detailed description, in conjunction with the accompanying drawings, will further illustrate the present invention. Detailed Implementation

[0025] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Several embodiments of the invention are illustrated in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of the invention more thorough and complete.

[0026] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] Please see Figure 1 and Figure 2 The ore placement device in this embodiment of the invention is placed on a horizontal support surface and includes a guide plate assembly and a support mechanism. The support mechanism is used to support and fix the guide plate assembly. The guide plate assembly includes an upper guide plate 10 and a lower guide plate 20. It is understood that the upper guide plate 10 and the lower guide plate 20 are arranged sequentially from top to bottom, and the upper guide plate 10 and the lower guide plate 20 are parallel to each other. Preferably, the area of ​​the lower guide plate 20 is greater than or equal to the area of ​​the upper guide plate 10.

[0029] The support mechanism includes a plurality of guide screws 30. The guide screws 30 are connected to the side of the upper guide plate 10 facing away from the lower guide plate 20. The plurality of guide screws 30 are arranged around the outer edge of the upper guide plate 10. The guide screws 30 extend from the upper guide plate 10 toward the lower guide plate 20 and partially protrude from the lower guide plate 20. Understandably, the upper guide plate 10 has a plurality of first guide holes, the positions of which correspond to the guide screws 30. The lower guide plate 20 has a plurality of second guide holes, the positions of which correspond to the first guide holes. By passing the guide screws 30 through the first guide holes and the second guide holes, the upper guide plate 10 and the lower guide plate 20 are supported and fixed. At the same time, by setting a plurality of guide screws 30, the overall structure of the ore placement device can be made more stable, further ensuring the stability of experimental data.

[0030] Furthermore, the ore placement device also includes a limiting mechanism 60, which includes a cap nut 610 and a nut assembly 620. One end of the guide screw 30 is connected to the cap nut 610, and the guide screw 30 is sleeved on the nut assembly 620. The nut assembly 620 includes a first nut 621, a second nut 622, and a third nut 623. The cap nut 610 and the first nut 621 are located on opposite sides of the upper guide plate 10, thereby limiting the setting position of the upper guide plate 10. The second nut 622 and the third nut 623 are located on opposite sides of the lower guide plate 20, thereby limiting the setting position of the lower guide plate 20. This prevents the upper guide plate 10 and the lower guide plate 20 from axially displacing on the guide screw 30, which would affect the accuracy of the test data. Preferably, the end of the guide screw 30 away from the cap nut 610 is connected to the base nut. By setting the base nut, the contact area between the end of the guide screw 30 away from the cap nut 610 and the horizontal support surface can be increased, providing sufficient support strength and improving the stability of the structure.

[0031] A plurality of positioning sleeves 40 are connected between the upper guide plate 10 and the lower guide plate 20. The positioning sleeves 40 are evenly distributed in an array. Preferably, 109 positioning sleeves 40 are connected between the upper guide plate 10 and the lower guide plate 20. The end of the positioning sleeve 40 facing the upper guide plate 10 is detachably connected to the upper guide plate 10, and the end of the positioning sleeve 40 facing the lower guide plate 20 is detachably connected to the lower guide plate 20. Through its detachable connection, when a single component is damaged, the upper guide plate 10, the lower guide plate 20, and the positioning sleeves 40 can be replaced individually, which reduces production costs to a certain extent.

[0032] The lower guide plate 20 is connected to a support rod 50 on the side facing away from the upper guide plate 10. The support rod 50 extends from the lower guide plate 20 toward the upper guide plate 10 and partially protrudes from the upper guide plate 10. The support rod 50 is axially movable and connected to the positioning sleeve 40. The support rod 50 is used to support ore. It can be understood that the ore placement device includes 109 support rods 50. The upper guide plate 10 has several first support holes, and the lower guide plate 20 has several second support holes. The positioning sleeve 40 has a positioning groove that penetrates the positioning sleeve 40 and connects the first support holes and the second support holes. It can be understood that the support rod 50 passes through the second support holes, the positioning groove, and the first support holes, and then through the upper guide plate 10 and the lower guide plate 20.

[0033] The support rod 50 forms a frictional resistance within the positioning sleeve 40. The frictional resistance is greater than the weight of the ore. When the ore is placed on the support rod 50, the support rod 50 moves axially downward by applying vertical pressure to the ore. By setting a plurality of support rods 50 within a plurality of positioning sleeves 40, when it is necessary to place irregular ore, the ore is placed on the plurality of support rods 50. At this time, because the frictional resistance generated by the support rods 50 within the positioning sleeves 40 is greater than the weight of the ore, the support rods 50 do not shift. When vertical pressure is applied to the ore, the vertical pressure combines with the weight of the ore, causing the support rods 50 to overcome the frictional resistance and move axially downward. Due to the irregular shape of the ore, different support rods 50 contact different positions with the ore, and different support rods 50 move axially downward to different degrees, thereby forming irregular grooves. By adopting the above structure, the ore can be placed flat quickly and effectively, the operation difficulty is extremely low, and the efficiency of crushing work index testing is improved.

[0034] The positioning sleeve 40 contains a plurality of rubber rings 70, which are fitted over the support rod 50. The inner wall of each rubber ring 70 forms a frictional resistance with the support rod 50. Preferably, the rubber rings 70 are made of nitrile wear-resistant material. The frictional resistance between the inner wall of the rubber ring 70 and the support rod 50 is calculated using the following formula: F = 2πuT, where F is the frictional resistance, u is the coefficient of friction of the rubber ring 70 (the coefficient of friction u is 0.45–0.6), and T is the expansion force generated by the inner wall of the rubber ring after it is fitted onto the support rod 50.

[0035] Understandably, the smaller the inner diameter of the rubber ring 70, the greater the expansion force T generated when the inner wall of the rubber ring 70 abuts against the support rod 50, and the greater the frictional resistance F. By adjusting the inner diameter of the rubber ring 70, the supporting force of the support column on the ore can be adjusted to meet the crushing work index test requirements of ores of different weights. By setting several rubber rings 70, the frictional resistance F formed between them and the support rod 50 can be increased. 总 =N*F, where N is the number of rubber rings 70. By adjusting the number of rubber rings 70, the supporting force of the support column on the ore can also be adjusted, preventing the support column from undergoing axial displacement before vertical pressure is applied, thus affecting the fixing of the ore.

[0036] The positioning sleeve 40 has several resistance grooves 410, and rubber rings 70 are disposed within each resistance groove 410. The resistance grooves 410 are coaxially arranged with the positioning sleeve 40. This means that the frictional resistance of the rubber rings 70 on the support rod 50 is directed along the same vertical line. Preferably, the positioning sleeve 40 has two resistance grooves 410 located at opposite ends. The resistance groove 410 near the upper guide plate 10 connects to the first support hole, and the resistance groove 410 near the lower guide plate 20 connects to the second support hole. This structure facilitates the replacement of the rubber rings 70 within the positioning sleeve 40, allowing for the placement of rubber rings 70 with different inner diameters within the positioning sleeve 40.

[0037] Preferably, the positioning sleeve 40 includes a left snap-fit ​​portion and a right snap-fit ​​portion, which are symmetrically arranged along the center of the positioning sleeve 40 and are engaged with each other. The rubber ring 70 inside the positioning sleeve 40 can be replaced by disassembling the left snap-fit ​​portion and the right snap-fit ​​portion.

[0038] The ore placement device also includes a reset mechanism, which is used to reset the support rod 50. After the crushing work index test of the irregular ore is completed, the ore is removed. The displaced support rod 50 maintains its position after displacement due to the influence of the frictional resistance. By setting the reset mechanism, the displaced support rod 50 can be returned to its original position, thereby quickly carrying out the next test of the ore.

[0039] Specifically, the reset mechanism is a movable plate 80, which is sleeved around several guide screws 30 and can slide along the axial direction of the guide screws 30. The lower guide plate 20 is located between the upper guide plate 10 and the movable plate 80. Understandably, the movable plate 80 is parallel to the lower guide plate 20. Several movable holes are formed on the movable plate 80, the diameter of which is larger than the diameter of the guide screws 30. By sleeved around the several guide screws 30, the guide screws 30 cooperate with each other to prevent the movable plate 80 from flipping, allowing the movable plate 80 to move upward along the axial direction of the guide screws 30. When the movable plate 80 abuts against the support rod 50, as the movable plate 80 continues to move upward axially, it drives the support rod 50 to reset. The parallel design between the movable plate 80 and the lower guide plate 20 allows the support rod 50 to reset to the same horizontal line. Preferably, a limiting protrusion is provided at one end of the support rod 50 facing the movable plate 80. The diameter of the limiting protrusion is larger than the diameter of the second support hole. This not only increases the contact area between the support rod 50 and the movable plate 80, but also prevents the support rod 50 from detaching from the positioning sleeve 40.

[0040] The ore placement device further includes a stabilization mechanism 90, which includes a first connecting rod 910 and a second connecting rod 920. The first connecting rod 910 and the second connecting rod 920 are respectively connected to opposite sidewalls of the movable plate 80. The first connecting rod 910 and the second connecting rod 920 are symmetrically arranged around the center of the movable plate 80. The end of the first connecting rod 910 away from the movable plate 80 is rotatably connected to a first support rod 930. The length of the first support rod 930 is greater than the distance between the end of the support rod 50 away from the movable plate 80 and the side of the movable plate 80 facing away from the support rod 50. The end of the first connecting rod 910 away from the movable plate 80 forms a first connecting end and a second connecting end that are arranged opposite to each other. A rotating shaft is provided between the first connecting end and the second connecting end. The first support rod 930 is rotatably connected to the rotating shaft, which is perpendicular to the support rod 50. When the irregular ore is placed on the support rod 50, by rotating the first support rod 930, the end of the first support rod 930 away from the first connecting rod 910 abuts against the outer wall of the ore. Understandably, the end of the second connecting rod 920 away from the movable plate 80 is rotatably connected to the second support rod 940. Through the mutual cooperation of the first support rod 930 and the second support rod 940, the stability of the ore placed on the ore placement device can be further ensured, and the data detection accuracy of the crushing power index test can be improved.

[0041] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0042] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. An ore placement device, characterized in that, The system includes a guide plate assembly and a support mechanism. The support mechanism supports and fixes the guide plate assembly. The guide plate assembly includes an upper guide plate and a lower guide plate. The support mechanism includes a plurality of guide screws. The guide screws are connected to the side of the upper guide plate facing away from the lower guide plate. The plurality of guide screws are arranged around the outer edge of the upper guide plate, extending from the upper guide plate towards the lower guide plate and partially protruding beyond the lower guide plate. A plurality of positioning sleeves are connected between the upper guide plate and the lower guide plate. The positioning sleeves are evenly distributed in an array. A detachable connection is made between one end of the positioning sleeve facing the upper guide plate and the upper guide plate, and a detachable connection is made between the one end of the positioning sleeve facing the lower guide plate and the lower guide plate. A support rod is connected to the side of the lower guide plate facing away from the upper guide plate. The support rod extends from the lower guide plate toward the upper guide plate and partially protrudes beyond the upper guide plate. The support rod is axially movable and connected within the positioning sleeve. The support rod is used to support the ore. The support rod forms frictional resistance within the positioning sleeve. The frictional resistance is greater than the weight of the ore. When the ore is placed on the support rod... When the ore is subjected to vertical pressure, the support rod moves downward along the axial direction. A plurality of rubber rings are disposed inside the positioning sleeve and fitted around the support rod. Frictional resistance is formed between the inner wall of the rubber rings and the support rod. A plurality of resistance grooves are formed inside the positioning sleeve, and rubber rings are disposed within these grooves. The resistance grooves are coaxially arranged with the positioning sleeve. The frictional resistance formed between the inner wall of the rubber rings and the support rod is calculated using the following formula: F = 2πuT, where F is the frictional resistance and u is the rubber ring diameter. The friction coefficient, T, is the expansion force generated by the inner wall of the rubber ring after it is sleeved on the support rod. By adjusting the inner diameter of the rubber ring, the supporting force of the support rod on the ore is adjusted to adapt to the crushing work index test requirements of different weights of ore. The ore placement device also includes a reset mechanism, which is used to reset the support rod. The reset mechanism is a movable plate, which is sleeved on several guide screws and can slide along the axial direction of the guide screws. The lower guide plate is located between the upper guide plate and the movable plate.

2. The ore placement device according to claim 1, characterized in that, The ore placement device further includes a limiting mechanism, which includes a cap nut and a nut assembly. One end of the support rod is connected to the cap nut, and the nut assembly is sleeved on the support rod. The nut assembly includes a first nut, a second nut, and a third nut. The cap nut and the first nut are located on opposite sides of the upper guide plate, and the second nut and the third nut are located on opposite sides of the lower guide plate.

3. The ore placement device according to claim 1, characterized in that, The rubber ring is made of nitrile wear-resistant material.

4. The ore placement device according to claim 1, characterized in that, The ore placement device also includes a stabilization mechanism, which includes a first connecting rod and a second connecting rod. The opposite sidewalls of the movable plate are respectively connected to the first connecting rod and the second connecting rod. The end of the first connecting rod away from the movable plate is rotatably connected to a first support rod, and the end of the second connecting rod away from the movable plate is rotatably connected to a second support rod.

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