A pre-assembly method of a large-scale cone crusher frame body

Abstract

The present application relates to a kind of large-scale conical crusher frame body preloading method, 1) uniformly distributed process groove is processed on the periphery of lower frame body of crusher;2) the size of the cone hole of lower frame body of crusher is detected by cone hole detection template;3) the size of the outer cone of middle frame body of crusher is detected by cone shaft detection template;4) make preloading adjusting block;5) preloading adjusting block is installed into the process groove of lower frame body of crusher;6) the middle frame body of crusher is placed above the lower frame body of crusher;The middle frame body of crusher and the cone hole of lower frame body of crusher are installed in cooperation, the end surface of two adjusting bolts on preloading adjusting block is respectively contacted with the periphery of lower frame body of crusher and middle frame body of crusher;7) wedge block of preloading adjusting block gradually moves outward, until preloading adjusting block is completely removed.The present application improves the single-piece machining quality of large-scale conical crusher frame body, reduces the preloading frequency, avoids unnecessary knock, ensures product precision, and the first preloading qualified rate is more than 95%.

Description

Technical Field

[0001] This invention relates to the field of crusher processing, and in particular to a method for pre-assembling the frame of a large cone crusher. Background Technology

[0002] Crushers are the most commonly used engineering machinery in the mining industry, widely used in mining, metallurgy, building materials, highways, railways, water conservancy, and chemical industries. Currently commonly used crushers include jaw crushers, impact crushers, air-classifying crushers, hammer crushers, cone crushers, roller crushers, compound crushers, and cone crushers. With technological advancements, crushers are continuously developing towards higher precision and larger sizes.

[0003] When the cone crusher is working, the rotation of the motor causes the cone to rotate around a fixed point through the pulley or coupling, the drive shaft and the cone under the traction of the eccentric sleeve. This causes the crushing wall of the cone crusher to sometimes approach and sometimes leave the crushing wall surface fixed on the adjusting sleeve, so that the ore is constantly subjected to impact, compression and bending in the crushing chamber, thus achieving the crushing of the ore.

[0004] The key components of a cone crusher (upper frame, middle frame, lower frame, etc.) mainly involve the fit of the cone bores, which require high precision in manufacturing. Due to the large size of the crusher, measuring the cone bores is difficult. Often, the two mating parts need to be machined individually, then trial-assembled with red lead, the high point measured, and then repaired and trial-assembled again until the overlap is satisfactory. This process involves numerous trial assemblies, and the trial assembly process can easily cause damage to the product, leading to quality problems. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a method for pre-assembling the frame of a large cone crusher, thereby solving the problem of product collision caused by repeated trial assembly during the pre-assembly process of the frame of a large cone crusher.

[0006] To achieve the above objectives, the present invention employs the following technical solution:

[0007] A method for pre-assembling the frame of a large cone crusher, comprising the following steps:

[0008] 1) Process grooves are evenly distributed on the outer periphery of the lower frame of the crusher. The process grooves are long and narrow, and the bottom surface of the process grooves is inclined.

[0009] 2) Use a cone hole inspection template to inspect the cone hole size of the lower frame of the crusher. If the cone hole slope error exceeds 0.03mm, grind the cone hole until the cone hole slope error is within 0.03mm.

[0010] 3) use the cone shaft detection sample plate to detect the outer cone size of the middle frame of the crusher, and when the outer cone error exceeds 0.03mm, grind the outer cone, until the outer cone slope error is within 0.03mm;

[0011] 4) make a pre-installed adjusting block, the pre-installed adjusting block comprises a wedge-shaped block, the bottom surface of the wedge-shaped block is provided with a slope surface matched with the process groove, the upper surface of the wedge-shaped block is a plane, and the wedge-shaped block is symmetrically provided with a supporting block above and below, and the supporting block is threadedly connected with an adjusting bolt;

[0012] 5) install the pre-installed adjusting block into the process groove of the lower frame of the crusher, and the slope surface of the pre-installed adjusting block is installed in close contact with the slope surface of the process groove;

[0013] 6) place the middle frame of the crusher above the lower frame of the crusher; the outer cone of the middle frame of the crusher is matched and installed with the taper hole of the lower frame of the crusher, and the end surfaces of the two adjusting bolts on the pre-installed adjusting block are respectively in contact with the outer circumferential top of the lower frame of the crusher and the middle frame of the crusher;

[0014] 7) rotate the adjusting bolt, so that the wedge-shaped block of the pre-installed adjusting block gradually moves outward, and the gap between the lower frame of the crusher and the middle frame of the crusher is gradually reduced, until the pre-installed adjusting block is completely removed, and the pre-installation of the lower frame of the crusher and the middle frame of the crusher is completed.

[0015] In step 2), when the taper hole detection sample plate is detected, multiple points are detected along the circumference of the taper hole of the lower frame of the crusher.

[0016] In step 3), when the taper hole detection sample plate is detected, multiple points are detected along the circumference of the taper hole of the lower frame of the crusher.

[0017] Compared with the prior art, the present application has the following beneficial effects:

[0018] The present application improves the machining quality of the single piece of the large-scale conical crusher frame, reduces the pre-installation frequency, avoids unnecessary bumps, ensures the product precision, and the pre-installation qualified rate is more than 95%. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 Fig. 1 is a structural schematic view of the lower frame of the crusher.

[0020] Figure 2 Fig. 5 is a detection schematic view of the taper hole detection sample plate.

[0021] Figure 3 Fig. 6 is a detection schematic view of the taper shaft detection sample plate.

[0022] Figure 4 Fig. 7 is an assembly schematic view of the middle frame of the crusher and the lower frame of the crusher.

[0023] Figure 5 Fig. 8 is an application schematic view of the pre-installed adjusting block.

[0024] Figure 6 The schematic diagram of the pre-assembled adjusting block structure. DETAILED DESCRIPTION

[0025] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0026] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0027] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood through specific circumstances.

[0028] A pre-assembly method of a large-scale cone crusher frame body, the specific steps comprising:

[0029] 1) uniformly process process grooves 3 on the outer periphery of the lower frame body 1 of the crusher, the process grooves 3 are long strip-shaped, and the bottom surface of the process grooves 3 is inclined; see Figure 1 .

[0030] 2) detect the size of the cone hole 2 of the lower frame body 1 of the crusher with a cone hole detection template 4, and detect multiple points along the circumference of the cone hole 2 of the lower frame body 1 of the crusher; when the error of the inclined surface of the cone hole 2 exceeds 0.03mm, the cone hole 2 is ground until the error of the inclined surface of the cone hole 2 is within 0.03mm; see Figure 2 .

[0031] 3) use the cone shaft detection template 8 to detect the size of the outer cone 6 of the crusher middle frame 5, and detect multiple points along the circumference of the outer cone 6 of the crusher middle frame 5; when the error of the outer cone 6 exceeds 0.03mm, grind the outer cone 6 until the error of the outer cone 6 is within 0.03mm; see Figure 3 .

[0032] 4) make a pre-installed adjusting block 7, which includes a wedge-shaped block 71, the bottom surface of the wedge-shaped block 71 is provided with a slope surface matched with the process groove 3, the upper surface of the wedge-shaped block 71 is a plane, and the upper and lower surfaces of the wedge-shaped block 71 are symmetrically provided with a supporting block 72, and the supporting block 72 is threadedly connected with an adjusting bolt 73; see Figure 5 、 Figure 6 .

[0033] 5) install the pre-installed adjusting block 7 into the process groove 3 of the crusher lower frame 1, and install the slope surface of the pre-installed adjusting block 7 to match the slope surface of the process groove, so that the upper surface of the wedge-shaped block 71 is horizontal; see Figure 4 .

[0034] 6) place the crusher middle frame 5 above the crusher lower frame 1; install the outer cone 6 of the crusher middle frame 5 and the tapered hole 2 of the crusher lower frame 1, and the end surfaces of the two adjusting bolts 73 on the pre-installed adjusting block 7 are respectively in contact with the outer circumferential top of the crusher lower frame 1 and the crusher middle frame 5; see Figure 4 、 Figure 5 .

[0035] 7) rotate the adjusting bolt 73, so that the wedge-shaped block 71 of the pre-installed adjusting block 7 gradually moves outward, and gradually reduces the gap between the crusher lower frame 1 and the crusher middle frame 5, until the pre-installed adjusting block 7 is completely removed, and the crusher lower frame 1 and the crusher middle frame 5 are pre-installed.

[0036] The preferred embodiments of the present application are described in detail above in combination with the drawings, but the present application is not limited to the specific details in the above-described embodiments, and various simple modifications can be made to the technical solutions of the present application within the technical concept of the present application, and these simple modifications all belong to the protection scope of the present application. In addition, it should be noted that, in the above-described specific embodiments, various specific technical features can be combined in any appropriate manner without contradiction, and in order to avoid unnecessary repetition, the present application will not further describe various possible combination manners. In addition, various different embodiments of the present application can also be combined in any manner, as long as it does not deviate from the technical concept of the present application, and it should be considered as disclosed content of the present application.

[0037] In order to make the purpose, technical scheme and technical effect of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely. However, the following described embodiments are only some of the embodiments of the present application, but not all the embodiments. In combination with the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0038] Embodiment

[0039] A large-scale cone crusher frame body pre-assembly method, the specific steps comprising:

[0040] 1) uniformly process process grooves 3 on the outer periphery of the lower frame body 1 of the crusher, the process grooves 3 are long strip-shaped, and the bottom surface of the process grooves 3 is beveled; see Figure 1 .

[0041] 2) detect the size of the taper hole 2 of the lower frame body 1 of the crusher with a taper hole detection template 4, and measure in four directions equally divided by 90° along the taper hole 2 of the lower frame body 1 of the crusher; the taper hole detection template 4 is placed on the upper surface of the lower frame body 1 of the crusher with the aid of a magnetic base to make it vertically stable, and when the error of the bevel of the taper hole 2 exceeds 0.03 mm, the taper hole 2 is ground until the error of the bevel of the taper hole 2 is within 0.03 mm; see Figure 2 .

[0042] 3) detect the size of the outer cone 6 of the middle frame body 5 of the crusher with a taper shaft detection template 8, and measure in four directions equally divided by 90° along the outer cone 6 of the middle frame body 5 of the crusher; when the error of the outer cone 6 exceeds 0.03 mm, the outer cone 6 is ground until the error of the bevel of the outer cone 6 is within 0.03 mm; see Figure 3 .

[0043] 4) make a pre-assembly adjusting block 7, the pre-assembly adjusting block 7 comprises a wedge-shaped block 71, the bottom surface of the wedge-shaped block 71 is provided with a bevel matched with the process groove 3, the upper surface of the wedge-shaped block 71 is flat, and the wedge-shaped block 71 is symmetrically provided with a support block 72 above and below, and an adjusting screw 73 is threadedly connected to the support block 72; see Figure 5 , Figure 6 .

[0044] 5) install the pre-assembly adjusting block 7 into the process groove 3 of the lower frame body 1 of the crusher, and install the bevel of the pre-assembly adjusting block 7 and the bevel of the process groove in abutment to make the upper surface of the wedge-shaped block 71 horizontal; see Figure 4 .

[0045] 6) place the middle frame body 5 of the crusher above the lower frame body 1 of the crusher; install the outer cone 6 of the middle frame body 5 of the crusher and the taper hole 2 of the lower frame body 1 of the crusher in cooperation, and the end faces of the two adjusting screws 73 on the pre-assembly adjusting block 7 are respectively in abutment with the outer periphery of the lower frame body 1 of the crusher and the middle frame body 5 of the crusher; see Figure 4、 Figure 5 .

[0046] 7) Rotate the adjusting bolt 73, and make the wedge-shaped block 71 of the pre-installed adjusting block 7 gradually move outward, and gradually reduce the gap between the lower frame body 1 and the middle frame body 5 of the crusher, until the pre-installed adjusting block 7 is completely removed, and the pre-installation of the lower frame body 1 and the middle frame body 5 of the crusher is completed.

[0047] While the embodiments of the application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and essential characteristics of the application. The scope of the application is therefore not to be limited to the embodiments shown and described, but is to be accorded the full scope consistent with the claims and their equivalents.

Claims

1. A method of preassembling a large-scale cone crusher frame body, characterized by, The specific steps include: 1) uniformly process process grooves on the outer periphery of the lower frame body of the crusher, the process grooves are long strip-shaped, and the bottom surface of the process groove is a slope; 2) detect the taper hole size of the lower frame body of the crusher by using a taper hole detection sample plate, divide multiple points along the circumference of the taper hole of the lower frame body of the crusher, and when the taper hole slope error exceeds 0.03 mm, grind the taper hole, until the taper hole slope error is within 0.03 mm; 3) detect the outer conical size of the middle frame body of the crusher by using a taper shaft detection sample plate, divide multiple points along the circumference of the outer conical surface of the middle frame body of the crusher, and when the outer conical surface error exceeds 0.03 mm, grind the outer conical surface, until the outer conical surface error is within 0.03 mm; 4) make a pre-installed adjusting block, the pre-installed adjusting block includes a wedge-shaped block, the bottom surface of the wedge-shaped block is provided with a slope matched with the process groove, the upper surface of the wedge-shaped block is a flat surface, the wedge-shaped block is symmetrically provided with a supporting block above and below, and the supporting block is threadedly connected with an adjusting bolt; 5) install the pre-installed adjusting block into the process groove of the lower frame body of the crusher, and the slope of the pre-installed adjusting block is installed in close contact with the slope of the process groove; 6) place the middle frame body of the crusher above the lower frame body of the crusher; the outer conical surface of the middle frame body of the crusher is matched and installed with the taper hole of the lower frame body of the crusher, and the end surfaces of the two adjusting bolts on the pre-installed adjusting block are respectively in contact with the outer periphery of the lower frame body of the crusher and the outer periphery of the middle frame body of the crusher; 7) rotate the adjusting bolt, so that the wedge-shaped block of the pre-installed adjusting block gradually moves outward, gradually reduces the gap between the lower frame body of the crusher and the middle frame body of the crusher, until the pre-installed adjusting block is completely removed, and the pre-installation of the lower frame body of the crusher and the middle frame body of the crusher is completed.

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