Anti-vibration locking device for tilting equipment

Abstract

The present invention discloses an anti-vibration locking device for tilting equipment, comprising a base and a support plate fixedly connected to the tilting equipment and supported on the base through an arc surface, a horizontal and parallel conical hole and a semi-conical hole are provided at the bottom of the arc section on one side of the supporting position of the support plate, the lower part of the semi-conical hole is open, two horizontal and synchronous hydraulic cylinders are installed on the base, the telescopic ends of the two hydraulic cylinders are respectively installed with a locking shaft 1 and a locking shaft 2, the front working surfaces of the locking shaft 1 and the locking shaft 2 are both conical surfaces, after the two hydraulic cylinders are extended to the right position, the conical surface of the locking shaft 1 and the conical hole clearance match, the conical surface of the locking shaft 2 and the semi-conical hole clearance match, the clearance between the conical surface of the locking shaft 1 and the conical hole is greater than the clearance between the conical surface of the locking shaft 2 and the semi-conical hole. The device is safe and reliable in locking, increases the contact surface, can be alternately loaded in periodic reciprocating loads, has a long service life, and has a good load-bearing effect.

Description

Technical Field

[0001] The invention relates to a locking device, in particular to an anti-vibration locking device for tilting equipment. Background Art

[0002] In heavy industry, especially in mining, metallurgy and other industries, tilting equipment is an indispensable and important equipment. When it is working, it is often subjected to various continuous vibrations. Periodic heavy-load vibration shocks will inevitably cause damage and fatigue to the equipment. Due to its tilting characteristics, the tilting equipment must be designed with a tilting motion pair. When it moves to the working position, if it is subjected to continuous shocks, it will inevitably cause periodic shaking of the tilting equipment. Therefore, a locking device for anti-vibration of the tilting equipment must be set. The existing anti-vibration locking device for tilting equipment does not take into account the characteristics of periodic vibration, and the locking effect of the tilting equipment working position subjected to vibration shock is not ideal. Summary of the invention

[0003] The object of the present invention is to provide an anti-vibration locking device for tilting equipment, which has safe and reliable locking, increases the contact surface, can be alternately loaded in periodic reciprocating loads, has a long service life and good load-bearing effect.

[0004] The technical solution adopted by the present invention is:

[0005] A vibration-proof locking device for tilting equipment comprises a base and a supporting plate fixedly connected to the tilting equipment and supported on the base through an arc surface, a horizontal and parallel conical hole and a semi-conical hole are provided at the bottom of the arc section on one side of the supporting position of the supporting plate, the lower part of the semi-conical hole is open, two horizontal and synchronous hydraulic cylinders are installed on the base, the telescopic ends of the two hydraulic cylinders are respectively installed with a locking shaft 1 and a locking shaft 2, the front working surfaces of the locking shaft 1 and the locking shaft 2 are both conical surfaces, after the two hydraulic cylinders are extended to the position, the conical surface of the locking shaft 1 and the conical hole clearance match, the conical surface of the locking shaft 2 and the semi-conical hole clearance match, the clearance between the conical surface of the locking shaft 1 and the conical hole is greater than the clearance between the conical surface of the locking shaft 2 and the semi-conical hole.

[0006] Furthermore, the conical hole and the semi-conical hole are arranged on the connecting plate, the connecting plate is fixedly connected to the bottom of the arc section on one side of the supporting position on the supporting plate, and the connecting plate extends into the base without interference.

[0007] Furthermore, two sides of the connecting plate are arc edges.

[0008] Furthermore, a wear-resistant sleeve is provided on the inner side of the tapered hole.

[0009] Furthermore, an end stopper is provided on the base, and the locking shaft 1 and the locking shaft 2 are axially limited by the end stopper.

[0010] Furthermore, the base is a box-type structure.

[0011] The beneficial effects of the present invention are:

[0012] The device pushes locking shaft 1 and locking shaft 2 through two hydraulic cylinders, and connects and fixes the support plate and the base through locking shaft 1 and locking shaft 2 to form a lock. The two locking shafts are used for locking, which is safe, reliable and has a long service life. In the device, the conical surface of the locking shaft 1 and the conical hole are matched with the clearance, and the conical surface of the locking shaft 2 and the semi-conical hole are matched with the clearance. Compared with the match between the cylindrical hole and the shaft, the contact surface is increased, and the stress caused by vibration and impact on the locking shaft is reduced. In the device, the clearance between the conical surface of the locking shaft 1 and the conical hole is greater than the clearance between the conical surface of the locking shaft 2 and the semi-conical hole. Since vibration and impact are both periodic reciprocating loads, Load, which makes the tilting device subject to vibration impact, when the support plate is compressed, the semi-conical hole contacts with the locking shaft 2 first, when the support plate is pulled, since the lower part of the semi-conical hole is open, only the conical hole contacts with the locking shaft 1. In this way, under the action of periodic vibration load, the locking shaft 1 and the locking shaft 2 are alternately loaded, which reduces the frequency of periodic vibration load on each locking shaft, reduces the probability of fatigue fracture, increases the reliability and service life of the entire device, and has low maintenance costs. In this device, the support plate is supported on the base through an arc surface, which has the best load-bearing effect, strong load impact absorption, and will not cause excessive deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front view of the anti-vibration locking device of the tilting equipment in the embodiment of the present invention.

[0014] Figure 2 yes Figure 1 Sectional view of AA.

[0015] Figure 3 yes Figure 1 Cross-sectional view of BB.

[0016] Figure 4 It is a side view of the anti-vibration locking device of the tilting equipment in the embodiment of the present invention.

[0017] Figure 5 yes Figure 4 Cross-sectional view of CC.

[0018] In the figure: 1-base; 2-support plate; 3-connecting plate; 4-hydraulic cylinder; 5-locking shaft one; 6-locking shaft two; 7-wear-resistant sleeve; 8-end stopper; a-arc surface; b-arc edge; c-conical surface; d-conical hole; e-semi-conical hole. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0020] like Figures 1 to 5As shown, an anti-vibration locking device for tilting equipment comprises a base 1 and a supporting plate 2 which is fixedly connected to the tilting equipment and supported on the base 1 through an arc surface a, a horizontal and parallel conical hole d and a semi-conical hole e are provided at the bottom of the arc section on one side of the supporting position on the supporting plate 2, and the lower part of the semi-conical hole e is open, and two horizontal and synchronous hydraulic cylinders 4 are installed on the base 1, and locking shafts 1 5 and 2 6 are installed on the telescopic ends of the two hydraulic cylinders 4 respectively, and the front working surfaces of the locking shafts 1 5 and 2 6 are both conical surfaces c, and after the two hydraulic cylinders 4 are extended to the position, the conical surface c of the locking shaft 1 5 and the conical hole d are clearance matched, and the conical surface c of the locking shaft 2 6 and the semi-conical hole e are clearance matched, and the clearance between the conical surface c of the locking shaft 1 5 and the conical hole d is greater than the clearance between the conical surface c of the locking shaft 2 6 and the semi-conical hole e.

[0021] like Figures 1 to 5 As shown, in this embodiment, the conical hole d and the semi-conical hole e are provided on the connecting plate 3, and the connecting plate 3 is fixedly connected to the bottom of the arc section on one side of the supporting position on the supporting plate 2, and the connecting plate 3 extends into the base 1 without interference.

[0022] like Figures 1 to 5 As shown, in this embodiment, the base 1 is a box-type structure.

[0023] like Figure 1 and Figure 5 As shown, in this embodiment, both sides of the connecting plate 3 are arc edges.

[0024] like Figure 2 and Figure 3 As shown, in this embodiment, a wear-resistant sleeve 7 is provided on the inner side of the tapered hole d.

[0025] like Figure 2 and Figure 3 As shown, in this embodiment, an end stopper 8 is provided on the base 1 , and the locking shaft 1 5 and the locking shaft 2 6 are axially limited by the end stopper 8 .

[0026] The device pushes the locking shaft 1 5 and the locking shaft 2 6 through two hydraulic cylinders 4, and connects and fixes the support plate 2 and the base 1 through the locking shaft 1 5 and the locking shaft 2 6 to form a locking state. The two locking shafts are used for locking, which is safe, reliable and has a long service life. In the device, the conical surface c of the locking shaft 1 5 and the conical hole d are clearance-matched, and the conical surface c of the locking shaft 2 6 and the semi-conical hole e are clearance-matched. Compared with the fit between the cylindrical hole and the shaft, the contact surface is increased, and the stress caused by vibration and impact on the locking shaft is reduced. In the device, the clearance between the conical surface c of the locking shaft 1 5 and the conical hole d is greater than the clearance between the conical surface c of the locking shaft 2 6 and the semi-conical hole e. Since vibration and impact are all around Periodic reciprocating load, which makes the tilting device subject to vibration impact, when the support plate 2 is compressed, the semi-conical hole e contacts with the locking shaft 6 first, and when the support plate 2 is pulled, since the lower part of the semi-conical hole e is open, only the conical hole d contacts with the locking shaft 5. In this way, under the action of periodic vibration load, the locking shaft 5 and the locking shaft 6 are alternately loaded, which reduces the frequency of periodic vibration load on each locking shaft, reduces the probability of fatigue fracture, increases the reliability and service life of the entire device, and has low maintenance cost. In this device, the support plate 2 is supported on the base 1 by the arc surface a, has the best load-bearing effect, strong load impact absorption, and will not produce excessive deformation.

[0027] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. An anti-vibration locking device for tilting equipment, characterized in that: It includes a base and a supporting plate that is fixedly connected to the tilting device and supported on the base through an arc surface. The bottom of the arc section on one side of the supporting position on the supporting plate is provided with horizontal and side-by-side conical holes and semi-conical holes, and the lower part of the semi-conical hole is open. Two horizontal and synchronous hydraulic cylinders are installed on the base. The telescopic ends of the two hydraulic cylinders are respectively installed with locking shaft one and locking shaft two. The front working surfaces of the locking shaft one and locking shaft two are both conical surfaces. After the two hydraulic cylinders are extended to the position, the conical surface of the locking shaft one and the conical hole clearance match, and the conical surface of the locking shaft two and the semi-conical hole clearance match. The clearance between the conical surface of the locking shaft one and the conical hole is greater than the clearance between the conical surface of the locking shaft two and the semi-conical hole.

2. The anti-vibration locking device for tilting equipment according to claim 1, characterized in that: The conical hole and the semi-conical hole are arranged on the connecting plate, the connecting plate is fixedly connected to the bottom of the arc section on one side of the supporting position of the supporting plate, and the connecting plate extends into the base without interference.

3. The anti-vibration locking device for tilting equipment according to claim 1, characterized in that: Both sides of the connecting plate are arc edges.

4. The anti-vibration locking device for tilting equipment according to claim 1, characterized in that: A wear-resistant sleeve is provided on the inner side of the tapered hole.

5. The anti-vibration locking device for tilting equipment according to claim 1, characterized in that: An end stopper is provided on the base, and the locking shaft 1 and the locking shaft 2 are axially limited by the end stopper.

6. The anti-vibration locking device for tilting equipment according to claim 1, characterized in that: The base is a box-type structure.

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