Novel lifting tool for roller shell of grinding roller

Abstract

The invention provides a novel grinding roller shell hoisting tool which comprises a calibration assembly and two hoisting assemblies, and each hoisting assembly comprises an upper hook assembly, a lower hook assembly and a hoisting ring; the upper end of the lower hook assembly is pivotally connected to the middle of the upper hook assembly, and the lower end of the lower hook assembly is jointed with the bottom of the inner ring of the grinding roller sleeve in the hoisting process; the upper end of the upper hook assembly is pivotally connected with the lifting ring, and the lower end of the upper hook assembly is jointed with the outer circumference of the grinding roller sleeve in the lifting process; the calibration assembly is used for enabling the two hoisting assemblies to be arranged in a central symmetry mode relative to the axis center of the grinding roller sleeve. In the implementation mode, along with hoisting, each hoisting assembly can tightly fasten the roller sleeve of the grinding roller, so that the hoisting reliability is improved. And the calibration assembly is arranged, so that the roller sleeve of the grinding roller can be prevented from inclining in the hoisting process, and the hoisting safety is improved.

Description

Technical Field

[0001] The invention relates to the technical field of hoisting, in particular to a novel grinding roller sleeve hoisting tool. Background Art

[0002] During each regular inspection of the coal mill, the grinding roller sleeve needs to be hoisted. Hoisting the grinding roller sleeve is a large-scale hoisting operation with high safety requirements.

[0003] Therefore, the lifting tool of the grinding roller sleeve plays a vital role, and the related lifting tools have the problem of poor reliability.

[0004] Accordingly, a new grinding roller sleeve lifting tool is proposed to solve the above problems. Summary of the invention

[0005] The content of the present invention is used to introduce the concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of the present disclosure is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.

[0006] Some embodiments of the present invention provide a novel grinding roller sleeve lifting tool to solve the technical problems mentioned in the above background technology section.

[0007] The new grinding roller sleeve lifting tool includes a calibration component and two lifting components, among which:

[0008] Each lifting assembly includes an upper hook assembly, a lower hook assembly and a lifting ring;

[0009] The upper end of the lower hook assembly is pivotally connected to the middle part of the upper hook assembly, and during the hoisting process, the lower end of the lower hook assembly is engaged with the bottom of the inner ring of the grinding roller sleeve;

[0010] The upper end of the upper hook assembly is pivotally connected to the lifting ring, and during the lifting process, the lower end of the upper hook assembly is engaged with the outer circumference of the grinding roller sleeve;

[0011] The calibration component is used to arrange the two hanging components symmetrically relative to the axis center of the grinding roller sleeve.

[0012] Optionally, the upper hook assembly includes an upper hook, a receiving groove is provided in the middle of the upper hook, and a first bolt hole is provided through the receiving groove for pivotally connecting with the lower hook assembly.

[0013] Optionally, a lifting eye bolt hole is provided at the upper end of the upper hook for connection with a lifting eye.

[0014] Optionally, a first hook portion is provided at the lower end of the upper hook, and a contact surface is provided at the end of the first hook portion. During the lifting process, the contact surface is tightly engaged with the outer circumference of the grinding roller sleeve.

[0015] Optionally, the lower hook assembly includes a lower hook, and a second bolt hole is provided at the connecting end of the lower hook; in an assembled state, the connecting end of the lower hook is inserted into the accommodating groove and is pivotally connected to the upper hook by bolts passing through the first bolt hole and the second bolt hole.

[0016] Optionally, the inner wall of the lower hook is arranged to be inclined, and the inclination angle is adapted to the inclination angle of the inner wall of the inner ring.

[0017] Optionally, a second hook portion is provided at the lower end of the lower hook, and in an assembled state, the second hook portion is engaged with the bottom of the inner ring of the grinding roller sleeve.

[0018] Optionally, in an assembled state, the first hook portion and the second hook portion are arranged opposite to each other.

[0019] Optionally, a mounting surface is provided on the opposite side of the second hook portion, and during the lifting process, the mounting surface is parallel to the vertical direction.

[0020] Optionally, the calibration component includes a laser transmitter and a laser receiver respectively arranged on the mounting surfaces of the two hanging components; in response to the light intensity received by the laser receiver being maximum, the two hanging components are determined to be symmetrical relative to the axis center of the grinding roller sleeve.

[0021] The above embodiments of the present invention have the following beneficial effects:

[0022] During the hoisting process, the lifting ring is subjected to the upward force of the overhead crane, so that the lower hook assembly can be pulled upward, so that the lower hook assembly is tightly engaged with the inner wall and bottom of the inner ring of the grinding roller sleeve. After the overhead crane continues to pull upward, under the action of the gravity of the grinding roller sleeve itself, the upper hook assembly rotates around the pivot shaft, so that the lower end of the upper hook assembly is tightly engaged with the outer circumference of the grinding roller sleeve. In this way, each lifting assembly is fastened to the grinding roller sleeve, thereby improving the reliability of the lifting.

[0023] The calibration component can prevent the grinding roller sleeve from tilting during the hoisting process, thereby improving the safety of the hoisting. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a structural schematic diagram of an embodiment of the novel grinding roller sleeve hoisting tool of the present invention;

[0026] Figure 2 It is a structural schematic diagram of an embodiment of the upper hook component of the present invention;

[0027] Figure 3 It is a structural schematic diagram of an embodiment of the lower hook assembly of the present invention;

[0028] Figure 4 It is a schematic diagram of the structure in which the upper hook component and the lower hook component of the present invention are assembled;

[0029] Figure 5 It is a schematic diagram of the structure in which the upper hook component, the lower hook component and the lifting ring of the present invention are assembled.

[0030] Description of reference numerals:

[0031] 11. upper hook; 12. receiving groove; 13. first bolt hole; 14. eyebolt hole; 15. first hook portion;

[0032] 21. lower hook; 22. second bolt hole; 23. second hook portion; 24. mounting surface;

[0033] 3. Rings;

[0034] 4. Grinding roller sleeve; 41. Inner ring of grinding roller sleeve;

[0035] 5. Bolts. DETAILED DESCRIPTION

[0036] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0038] In addition, the terms "first" and "second" are only used 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 as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0040] First see Figure 1 , Figure 1 FIG. 1 is a schematic diagram of the structure of an embodiment of the new grinding roller sleeve hoisting tool of the present invention. Figure 1 As shown, the novel grinding roller sleeve hoisting tool comprises a calibration component and two hoisting components, each of which comprises an upper hook component, a lower hook component and a hoisting ring 3. During the hoisting process, the two hoisting components are symmetrically arranged relative to the axis center of the grinding roller sleeve 4.

[0041] See also Figure 2 , Figure 2 FIG. 1 is a schematic diagram of the structure of an embodiment of the upper hook 11 component of the present invention. Figure 2 As shown, the upper hook assembly comprises an upper hook 11, a receiving slot 12 is provided in the middle of the upper hook 11, and a first bolt hole 13 is provided through the receiving slot 12 for pivotally connecting with the lower hook assembly. Figure 2 A lifting eye bolt hole 14 is provided at the lower end of the upper hook 11 for connecting with the lifting ring 3. A first lifting hook portion 15 is provided at the lower end of the upper hook 11, and an abutting surface is provided at the end of the first lifting hook portion 15, which is adapted to the outer circumference of the grinding roller sleeve 4.

[0042] See also Figure 3 , Figure 3 FIG. 2 is a schematic diagram of the structure of an embodiment of the lower hook assembly of the present invention. Figure 3 As shown, the lower hook assembly includes a lower hook 21, and the connecting end of the lower hook 21 is Figure 3 The upper end shown is provided with a second bolt hole 22. The inner wall of the lower hook 21 is arranged inclined, and the inclination angle is adapted to the inclination angle of the inner wall of the inner ring 41 of the roller sleeve. Figure 3 The lower end of the second hook portion 23 is provided with a second hook portion 23. The opposite side of the second hook portion 23 is provided with a mounting surface 24, and the mounting surface 24 is used to place the calibration component.

[0043] See also Figure 4 , Figure 4 This is a schematic diagram of the structure of the upper hook component and the lower hook component of the present invention after being assembled. Figure 4 As shown, during the assembly process, the upper hook assembly and the lower hook assembly are first assembled. The connecting end of the lower hook 21 is inserted into the receiving groove 12, and the first hook portion 15 and the second hook portion 23 are arranged opposite to each other. Next, the first bolt hole 13 and the second bolt hole 22 are connected by bolts 5, so that the upper hook assembly and the lower hook assembly are rotatably connected.

[0044] See also Figure 5 , Figure 5 This is a schematic diagram of the structure of the upper hook component, the lower hook component and the lifting ring of the present invention after being assembled. Figure 5 As shown, the lifting ring 3 is sleeved onto the lifting ring bolt hole 14 of the upper hook 11 and the connection with the upper hook 11 is completed.

[0045] Please review Figure 1 It should be noted that, in order to show the connection relationship between the hoisting assembly and the grinding roller sleeve 4, the grinding roller sleeve 4 is shown in a cross-sectional view. After the hoisting assembly is assembled, it needs to be assembled to the inner ring 41 of the grinding roller sleeve. Specifically, the upper end surface of the second hook portion 23 is engaged with the bottom of the inner ring 41 of the grinding roller sleeve, and the lower hook 21 is moved toward the inner ring 41 of the grinding roller sleeve. Since the inclination angle of the inner wall of the lower hook 21 is adapted to the inclination angle of the inner wall of the inner ring 41 of the grinding roller sleeve, the lower hook 21 can be engaged with the inner wall of the inner ring 41 of the grinding roller sleeve.

[0046] Next, the upper hook 11 is rotated, and since the abutting surface of the first hook portion 15 is adapted to the outer circumference of the grinding roller sleeve 4 , the abutting surface is tightly engaged with the outer surface of the grinding roller sleeve 4 .

[0047] According to the above steps, two lifting components are installed, and finally the overhead crane can connect the two lifting rings 3 through the wire rope to complete the lifting of the grinding roller sleeve.

[0048] During the hoisting process, the lifting ring 3 is subjected to the upward force of the crane, so it can pull the lower hook 21 upward, so that the lower hook 21 is tightly engaged with the inner wall and bottom of the inner ring 41 of the roller sleeve. After the crane continues to pull upward, under the action of the gravity of the roller sleeve 4 itself, the upper hook 11 will rotate counterclockwise around the bolt ( Figure 1 The upper hook on the left side of the middle part) makes the abutting surface of the first hook part 15 tightly engage with the outer circumference of the grinding roller sleeve 4. In this way, each lifting assembly is fastened to the grinding roller sleeve 4, thereby improving the reliability of the lifting.

[0049] Furthermore, in order to make the two hoisting assemblies symmetrically arranged relative to the axis center of the grinding roller sleeve 4, to avoid tilting during the hoisting process and damage to the grinding roller sleeve 4, the distance between the two mounting surfaces 24 can be measured, and the position with the largest distance is the position of the two hoisting assemblies being symmetrically arranged.

[0050] In order to avoid manual measurement errors, the calibration assembly may further include a laser transmitter and a laser receiver. The laser transmitter and the laser receiver may be arranged on the mounting surfaces 24 of the two hoisting assemblies. The mounting surface 24 may be arranged to be parallel to the vertical plane in the hoisting state.

[0051] A groove may be provided on the mounting surface 24, and the laser transmitter and the laser receiver may be detachably mounted in the corresponding groove by means of magnetic attraction or the like.

[0052] The laser receiver can be connected to a signal processing unit. By adjusting the positions of the two hanging components, the light intensity change is determined by the signal processing unit. When the light intensity is at a maximum value, it is determined that the two hanging components are centrally symmetrical.

[0053] In this way, the grinding roller sleeve can be prevented from tilting and the inner ring 41 of the grinding roller sleeve can be prevented from being scratched by the hoisting assembly, thereby improving the reliability of the hoisting tool.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A new type of grinding roller sleeve lifting tool, characterized in that: It includes a calibration component and two lifting components, among which: Each lifting assembly includes an upper hook assembly, a lower hook assembly and a lifting ring; The upper end of the lower hook assembly is pivotally connected to the middle part of the upper hook assembly, and during the hoisting process, the lower end of the lower hook assembly is engaged with the bottom of the inner ring of the grinding roller sleeve; The upper end of the upper hook assembly is pivotally connected to the lifting ring, and during the lifting process, the lower end of the upper hook assembly is engaged with the outer circumference of the grinding roller sleeve; The calibration component is used to arrange the two hanging components symmetrically relative to the axis center of the grinding roller sleeve.

2. The new grinding roller sleeve hoisting tool according to claim 1 is characterized in that: The upper hook assembly comprises an upper hook, a receiving groove is provided in the middle of the upper hook, and a first bolt hole is provided through the receiving groove for pivotally connecting with the lower hook assembly.

3. The new grinding roller sleeve hoisting tool according to claim 2 is characterized in that: The upper end of the upper hook is provided with a lifting eye bolt hole for connecting with a lifting eye.

4. The new grinding roller sleeve hoisting tool according to claim 3 is characterized in that: The lower end of the upper hook is provided with a first hook portion, and the end of the first hook portion is provided with an abutment surface. During the hoisting process, the abutment surface is tightly engaged with the outer circumference of the grinding roller sleeve.

5. The new grinding roller sleeve hoisting tool according to claim 4 is characterized in that: The lower hook assembly includes a lower hook, and a second bolt hole is provided at the connecting end of the lower hook; in an assembled state, the connecting end of the lower hook is inserted into the accommodating groove, and is pivotally connected to the upper hook by bolts passing through the first bolt hole and the second bolt hole.

6. The new grinding roller sleeve hoisting tool according to claim 5 is characterized in that: The inner wall of the lower hook is arranged in an inclined manner, and the inclination angle is matched with the inclination angle of the inner wall of the inner ring.

7. The new grinding roller sleeve hoisting tool according to claim 6 is characterized in that: The lower end of the lower hook is provided with a second hook portion, and in the assembled state, the second hook portion is engaged with the bottom of the inner ring of the grinding roller sleeve.

8. The new grinding roller sleeve hoisting tool according to claim 7 is characterized in that: In an assembled state, the first hook portion and the second hook portion are arranged opposite to each other.

9. The new grinding roller sleeve hoisting tool according to claim 8 is characterized in that: An installation surface is arranged on the opposite side of the second hook portion, and during the lifting process, the installation surface is parallel to the vertical direction.

10. The new grinding roller sleeve hoisting tool according to claim 9 is characterized in that: The calibration component includes a laser transmitter and a laser receiver respectively arranged on the mounting surfaces of the two hanging components; in response to the light intensity received by the laser receiver being maximum, the two hanging components are determined to be symmetrical relative to the axis center of the grinding roller sleeve.

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