A protective cover device

Abstract

The present invention relates to the technical field of protective structures, and in particular, to a protective cover device. The protective cover device comprises a protective cover shell and a blind cover, wherein the protective cover shell is sealed and connected to a proximity switch cover body, and a protective cavity is provided inside, and the right half of the proximity switch is used to be arranged in the protective cavity, and the first electrical detection element and the second electrical detection element are both arranged on the blind cover, and are located on a side close to the protective cover shell, and are used to be arranged in the protective cavity, and the blind cover is sealed and connected to the protective cover shell. The first electrical detection element and the second electrical detection element are arranged in the protective cavity, and the two ends of the protective cover shell are sealed and connected to the proximity switch cover body and the blind cover respectively, so that the first electrical detection element and the second electrical detection element can be sealed, thereby preventing water and oil from interfering with the first electrical detection element and the second electrical detection element, and ensuring the effect of the first electrical detection element and the second electrical detection element.

Description

Technical Field

[0001] The present invention relates to the technical field of protective structures, and in particular to a protective cover device. Background Art

[0002] The finishing mill is composed of 7 rolling mills. The upper working roll, lower working roll and transverse hydraulic cylinder are installed on the body arch of the rolling mill. The transverse hydraulic cylinder is used to drive the upper working roll and the lower working roll to move axially to achieve the plate shape control in the strip production process. At the same time, a fixed block is set on the body arch, and a moving block is set on the fixed block. The locking cylinder on the moving block drives the working roll bearing seat to lock and fix the upper working roll and the lower working roll, and the side of the moving block is connected to the hydraulic and lubrication pipe. During the process of replacing and pulling out the upper working roll and the lower working roll, the locking cylinder needs to be opened first. When the locking cylinder is not opened in place and the upper working roll and the lower working roll are pulled out, the moving block will be pulled out together, which will eventually cause the hydraulic pipe connected to the side of the moving block to be pulled off and sprayed with oil, and even the moving block will fall off as a whole.

[0003] By setting a proximity switch at the end of the piston rod of the locking cylinder, when the locking cylinder is closed and opened, the proximity switch moves to different positions, and the electrical detection element is used to detect and transmit the action signal, so as to judge whether the locking cylinder has been fully opened. However, the electrical detection element is in an exposed installation environment and will be flushed by cooling water and contaminated by grease for a long time, which will cause damage to the electrical detection element and easily lead to misjudgment. Summary of the invention

[0004] The problem solved by the present invention is how to protect the electrical detection element.

[0005] In order to solve the above problems, the present invention provides a protective cover device, which is applied to a finishing mill. The finishing mill includes a fixed block, a moving block, a locking cylinder, a proximity switch, a proximity switch cover, a first electrical detection element and a second electrical detection element. The moving block is arranged on the fixed block, the locking cylinder is arranged on the moving block, the proximity switch is arranged at the end of the piston rod of the locking cylinder, the proximity switch cover is arranged on the locking cylinder, and is used to protect the left half of the proximity switch. The first electrical detection element and the second electrical detection element are both used to detect the proximity switch. The protective cover device includes a protective cover shell and a blind cover. The protective cover shell is used to be sealed and connected to the proximity switch cover, and a protective cavity is opened inside. The right half of the proximity switch is used to be arranged in the protective cavity. The first electrical detection element and the second electrical detection element are both arranged on the blind cover and used to be arranged in the protective cavity. The blind cover is used to be sealed and connected to the protective cover shell.

[0006] The technical effect of the present invention is as follows: the left half of the proximity switch is protected by the proximity switch cover, and the protective cover shell is arranged on the proximity switch cover and extends to the right end of the proximity switch, so that the right half of the proximity switch can be protected by the protective cover shell. At the same time, a protective cavity is opened in the protective cover shell, and the first electrical detection element and the second electrical detection element are arranged in the protective cavity, and the two ends of the protective cover shell are respectively sealed with the proximity switch cover and the blind cover, so that the first electrical detection element and the second electrical detection element can be sealed, thereby preventing water and oil from interfering with the first electrical detection element and the second electrical detection element, and ensuring the effect of the first electrical detection element and the second electrical detection element. At the same time, the first electrical detection element and the second electrical detection element are both arranged on the blind cover, and when the blind cover is arranged on the protective cover shell, the first electrical detection element and the second electrical detection element can be installed at the same time, which simplifies the installation process.

[0007] Optionally, the blind cover includes a blind cover body and a first bracket, the protective cover shell includes a protective cover body and a top plate, the protective cover body is configured as a cylindrical structure, the protective cavity is located in the protective cover body, the top plate is configured at the right end of the protective cover body, the blind cover body is used to be connected with the top plate bolts, the first bracket is configured on the left side surface of the blind cover body, and the first electrical detection element and the second electrical detection element are both configured on the first bracket.

[0008] Optionally, a first mounting hole and a second mounting hole are formed on the first bracket, the first electrical detection element is threadedly connected to the first mounting hole, and the second electrical detection element is threadedly connected to the second mounting hole.

[0009] Optionally, the first bracket is eccentrically arranged on the cover body.

[0010] Optionally, the blind cover further includes a second bracket, and the second bracket is arranged on the right side surface of the blind cover body.

[0011] Optionally, a third mounting hole is provided on the cover body, and the third mounting hole is used to install a cable connected to the electrical detection element. The cable is coaxially distributed with the third mounting hole, and the outer side wall of the cable abuts against the hole wall of the third mounting hole.

[0012] Optionally, a first threaded hole is formed on the cover body, and a second threaded hole is formed on the top plate opposite to the first threaded hole, and the first threaded hole is used to correspond to the second threaded hole.

[0013] Optionally, the protective cover body is configured as a semi-cylindrical structure, and the top plate and the cover body are both configured as semi-circular structures.

[0014] Optionally, the protective cover shell further includes a bottom plate and a mounting tube, wherein the bottom plate is arranged at the left end of the protective cover body, and the mounting tube is arranged on the left side surface of the bottom plate and is used to be sleeved on the proximity switch cover body.

[0015] Optionally, a mounting groove is provided at the left end of the mounting tube, and the proximity switch cover is used to be arranged in the mounting groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view of the protective cover shell of the present invention;

[0017] Figure 2 is a cross-sectional view of the protective cover shell of the present invention;

[0018] Figure 3 It is a side view of the cover of the present invention;

[0019] Figure 4 It is the rear view of the cover of the present invention.

[0020] Reference numerals:

[0021] 11. Protective cover body; 111. Protective cavity; 12. Top plate; 121. Second threaded hole; 122. Fourth mounting hole; 13. Bottom plate; 14. Mounting tube; 141. Assembly groove; 21. Cover body; 211. Third mounting hole; 212. First threaded hole; 22. First bracket; 221. First mounting hole; 222. Second mounting hole; 23. Second bracket. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0023] In this embodiment, an X-axis coordinate system is established, where the positive direction of the X-axis is the right and the negative direction of the X-axis is the left.

[0024] To solve the above problems, Figure 2As shown, a protective cover device of the present embodiment is applied to a finishing mill, which includes a fixed block, a moving block, a locking cylinder, a proximity switch, a proximity switch cover, a first electrical detection element and a second electrical detection element. The moving block is arranged on the fixed block, the locking cylinder is arranged on the moving block, the proximity switch is arranged at the end of the piston rod of the locking cylinder, the proximity switch cover is arranged on the locking cylinder, and is used to protect the left half of the proximity switch. The first electrical detection element and the second electrical detection element are both used to detect the proximity switch. The protective cover device includes a protective cover shell and a blind cover. The protective cover shell is used to be sealed and connected to the proximity switch cover, and a protective cavity 111 is opened inside. The right half of the proximity switch is used to be arranged in the protective cavity 111. The first electrical detection element and the second electrical detection element are both arranged on the blind cover and used to be arranged in the protective cavity 111. The blind cover is used to be sealed and connected to the protective cover shell.

[0025] In the present embodiment, exemplarily, the finishing mill further includes a body arch, a working roll bearing seat, an upper working roll and a lower working roll, a fixed block is arranged on the body arch, a movable block is slidably connected to the fixed block along the axial direction, and eight locking cylinders are arranged, specifically, a locking cylinder is respectively arranged at the front and rear ends of the inlet side of the upper working roll, a locking cylinder is respectively arranged at the front and rear ends of the outlet side of the upper working roll, a locking cylinder is respectively arranged at the front and rear ends of the inlet side of the lower working roll, a locking cylinder is respectively arranged at the front and rear ends of the outlet side of the lower working roll, the eight locking cylinders are all connected to the movable block, the locking cylinder is connected to the working roll bearing seat, the transverse hydraulic cylinder is transmission-connected to the upper working roll and the lower working roll, and the working roll bearing seat is used to connect with the upper working roll and the lower working roll. When the locking cylinder is closed, the locking cylinder drives the working roll bearing seat to connect with the upper working roll and the lower working roll. When the upper working roll and the lower working roll are replaced and pulled out, the locking cylinder is driven to move in the axial direction. Since the locking cylinder is set on the moving block, the moving block will be driven to move axially during the axial movement of the locking cylinder, and the moving block can only move axially up to ±150mm. If the movement exceeds the maximum axial movement, the hydraulic pipe set on the side of the moving block will be pulled off and oil will be sprayed. At the same time, each locking cylinder is provided with a proximity switch. When the locking cylinder is in the closed state, the proximity switch on the piston rod of the locking cylinder is located at the first electrical detection element, and the proximity switch is detected by the first electrical detection element. When the locking cylinder is in the open state, the working roll bearing seat is separated from the upper working roll and the lower working roll. When the upper working roll and the lower working roll are replaced and pulled out, the locking cylinder will not be driven to move axially, and the moving block will not be driven to move axially, thereby preventing the hydraulic pipe on the side of the moving block from being pulled off and spraying oil. At the same time, when the locking cylinder is opened, the piston rod will drive the proximity switch to move to the second electrical detection element, and the second electrical detection element will detect the proximity switch.

[0026] In summary, the left half of the proximity switch is protected by the proximity switch cover, and the protective cover shell is set on the proximity switch cover and extends to the right end of the proximity switch, so that the right half of the proximity switch can be protected by the protective cover shell. At the same time, a protective cavity 111 is opened in the protective cover shell, and the first electrical detection element and the second electrical detection element are set in the protective cavity 111, and the two ends of the protective cover shell are respectively sealed with the proximity switch cover and the cover, so that the first electrical detection element and the second electrical detection element can be sealed, thereby preventing water and oil from interfering with the first electrical detection element and the second electrical detection element, and ensuring the effect of the first electrical detection element and the second electrical detection element. At the same time, the first electrical detection element and the second electrical detection element are both set on the cover, and when the cover is set on the protective cover shell, the first electrical detection element and the second electrical detection element can be installed at the same time, which simplifies the installation process.

[0027] Alternatively, if Figure 1-4 As shown, the blind cover includes a blind cover body 21 and a first bracket 22, the protective cover shell includes a protective cover body 11 and a top plate 12, the protective cover body 11 is arranged as a cylindrical structure, the protective cavity 111 is located in the protective cover body 11, the top plate 12 is arranged at the right end of the protective cover body 11, the blind cover body 21 is used to be bolted to the top plate 12, the first bracket 22 is arranged on the left side surface of the blind cover body 21, and the first electrical detection element and the second electrical detection element are both arranged on the first bracket 22.

[0028] In this embodiment, exemplarily, when the blind cover and the protective cover shell are connected, the blind cover is brought close to the protective cover shell until the left side of the blind cover body 21 and the right side of the top plate 12 are in contact, and the blind cover body 21 and the top plate 12 are connected by bolts. At the same time, a fourth mounting hole 122 is provided on the top plate 12, the first bracket 22 is welded to the left side of the blind cover body 21, and the first electrical detection element and the second electrical detection element are arranged on the first bracket 22. When the left side of the blind cover body 21 and the right side of the top plate 12 are in contact, the first bracket 22 drives the first electrical detection element and the second electrical detection element to pass through the fourth mounting hole 122 and extend into the protective cavity 111, and the blind cover body 21 and the top plate 12 are in contact to seal the connection between the protective cover shell and the blind cover, thereby enhancing the protective effect on the first electrical detection element and the second electrical detection element.

[0029] Alternatively, if Figure 3 As shown, the first bracket 22 is provided with a first mounting hole 221 and a second mounting hole 222 , the first electrical detection element is threadedly connected to the first bracket 22 through the first mounting hole 221 , and the second electrical detection element is threadedly connected to the first bracket 22 through the second mounting hole 222 .

[0030] In this embodiment, for example, threads are provided on the side surfaces of the ends of the first electrical detection element and the second electrical detection element, and reverse threads are provided on the hole walls of the first mounting hole 221 and the second mounting hole 222, so that the first electrical detection element and the second electrical detection element can be threadedly connected to the first mounting hole 221 and the second mounting hole 222, respectively, and the two electrical detection elements can be quickly installed. At the same time, nuts are provided on the first electrical detection element and the second electrical detection element to strengthen the connection strength between the first electrical detection element and the second electrical detection element and the first bracket 22. At the same time, the distance between the center lines of the first mounting hole 221 and the second mounting hole 222 is set to 40 mm, and the movement distance of the proximity switch in the left and right directions is 40 mm. When the proximity switch moves to the left, the first electrical detection element can be used to detect the proximity switch, and when the proximity switch moves to the right, the second electrical detection element can be used to detect the proximity switch.

[0031] Optionally, the first bracket 22 is eccentrically disposed on the cover body 21 .

[0032] In this embodiment, illustratively, the first electrical detection element and the second electrical detection element need to be kept at 10 mm from the proximity switch for accurate detection. When the first bracket 22 is set at the center of the cover body 21, the cover and the protective cover shell are installed, which will cause the first bracket 22 and the proximity switch to be in direct contact, and the first electrical detection element and the second electrical detection element set on the first bracket 22 cannot be used to detect the proximity switch. By eccentrically setting the first bracket 22 on the cover body 21, when the cover is installed on the protective cover shell, the first electrical detection element and the second electrical detection element set on the first bracket 22 can be kept at 10 mm from the proximity switch, which is conducive to the first electrical detection element and the second electrical detection element accurately detecting the proximity switch.

[0033] Alternatively, if Figure 3 As shown, the cover further includes a second bracket 23 , and the second bracket 23 is arranged on the right side surface of the cover body 21 .

[0034] In this embodiment, the second bracket 23 is welded to the right side surface of the cover body 21, and the installer can directly grasp the second bracket 23 to facilitate setting the cover on the protective cover shell.

[0035] Alternatively, if Figure 4 As shown, a third mounting hole 211 is provided on the cover body 21 , and the third mounting hole 211 is used to install a cable connected to the electrical detection element. The cable is coaxially distributed with the third mounting hole 211 , and the outer side wall of the cable abuts against the hole wall of the third mounting hole 211 .

[0036] In this embodiment, illustratively, the cable is inserted into the protective cavity 111 through the third mounting hole 211 and connected to the first electrical detection element and the second electrical detection element, which is conducive to the transmission of signals of the first electrical detection element and the second electrical detection element. At the same time, the cable is coaxially distributed with the third mounting hole 211, and the outer wall of the cable abuts against the hole wall of the third mounting hole 211, which means that the aperture of the third mounting hole 211 is equivalent to the diameter of the cable, and the cable only closes the third mounting hole 211, thereby preventing water and oil from flowing from the third mounting hole 211 into the protective cavity 111, ensuring the protection of the first electrical detection element, the second electrical detection element and the proximity switch.

[0037] Alternatively, if Figure 4 As shown, a first threaded hole 212 is formed on the cover body 21 , and a second threaded hole 121 is formed on the top plate 12 opposite to the first threaded hole 212 . The first threaded hole 212 is used to correspond to the second threaded hole 121 .

[0038] In this embodiment, illustratively, four first threaded holes 212 are opened on the cover body 21, and the four first threaded holes 212 are distributed circumferentially on the cover body 21; four second threaded holes 121 are opened on the top plate 12, and the four second threaded holes 121 are distributed circumferentially on the top plate 12; when the left side of the cover body 21 abuts against the right side of the top plate 12, the four first threaded holes 212 are respectively used to correspond to the four second threaded holes 121; at the same time, four screws are respectively provided to pass through the first threaded holes 212 and the second threaded holes 121, so as to ensure the tightness of the connection between the cover and the protective cover shell, thereby ensuring the protection of the first electrical detection element, the second electrical detection element and the proximity switch.

[0039] Optionally, the protective cover body 11 is configured as a semi-cylindrical structure, and the top plate 12 and the cover body 21 are both configured as semi-circular structures.

[0040] In this embodiment, illustratively, the protective cover body 11 is composed of two semi-cylindrical structures of different sizes, and the top plate 12 and the cover body 21 are both composed of two semi-circular structures. The distance between the proximity switch and the fuselage arch is small. When the protective cover body 11 is set as a cylindrical structure, it is inevitable to interfere with the fuselage arch when installing the protective cover shell, so that the protective cover shell cannot be assembled. By setting the protective cover body 11 as a semi-cylindrical structure and setting the semi-cylindrical structure on the side away from the fuselage arch, it can avoid interference with the fuselage arch, which is conducive to installing the protective cover shell. At the same time, setting the top plate 12 as a semi-circular structure is conducive to setting the top plate 12 on the protective cover body 11 and avoiding interference with the fuselage arch, and setting the cover body 21 as a semi-circular structure is conducive to connecting the cover body 21 with the top plate 12, thereby ensuring the protection effect of the first electrical detection element, the second electrical detection element and the proximity switch.

[0041] Alternatively, if Figure 2 As shown, the protective cover shell further includes a bottom plate 13 and a mounting tube 14. The bottom plate 13 is arranged at the left end of the protective cover body 11, and the mounting tube 14 is arranged on the left side surface of the bottom plate 13 and is used to be sleeved on the proximity switch cover.

[0042] In this embodiment, the installation tube 14 is sleeved on the proximity switch cover to connect the protective cover shell and the proximity switch cover, so that the protective cover shell can be quickly installed. At the same time, a through hole is opened on the bottom plate 13 relative to the installation tube 14, so that the right half of the proximity switch can pass through the through hole and extend into the protective cavity 111, which is beneficial to protect the proximity switch.

[0043] Alternatively, if Figure 2 As shown, a mounting groove 141 is formed at the left end of the mounting tube 14 , and the proximity switch cover is used to be arranged in the mounting groove 141 .

[0044] In this embodiment, exemplarily, the mounting cylinder 14 is disposed on the proximity switch cover so as to set the proximity switch cover into the first assembly groove 141, and the inner wall of the first assembly groove 141 is utilized to abut against the outer wall of the proximity switch cover, and the friction force between the proximity switch cover and the mounting cylinder 14 is utilized to connect the proximity switch cover and the protective cover shell, thereby ensuring the sealing effect of the left end of the protective cover shell, thereby ensuring the protection of the first electrical detection element, the second electrical detection element and the proximity switch.

[0045] Although the disclosure is disclosed as above, the protection scope of the disclosure is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A protective cover device, applied to a finishing mill, the finishing mill comprising a fixed block, a moving block, a locking cylinder, a proximity switch, a proximity switch cover, a first electrical detection element and a second electrical detection element, the moving block is arranged on the fixed block, the locking cylinder is arranged on the moving block, the proximity switch is arranged at the end of the piston rod of the locking cylinder, the proximity switch cover is arranged on the locking cylinder and is used to protect the left half of the proximity switch, the first electrical detection element and the second electrical detection element are both used to detect the proximity switch, characterized in that, The invention comprises a protective cover shell and a blind cover, wherein the protective cover shell is used for being sealedly connected to the proximity switch cover body and has a protective cavity (111) formed therein, the right half of the proximity switch is used for being arranged in the protective cavity (111), the first electrical detection element and the second electrical detection element are both arranged on the blind cover and are used for being arranged in the protective cavity (111), and the blind cover is used for being sealedly connected to the protective cover shell; The blind cover comprises a blind cover body (21) and a first bracket (22); the protective cover shell comprises a protective cover body (11) and a top plate (12); the protective cover body (11) is arranged as a cylindrical structure; the protective cavity (111) is located in the protective cover body (11); the top plate (12) is arranged at the right end of the protective cover body (11); the blind cover body (21) is used for bolt connection with the top plate (12); the first bracket (22) is arranged on the left side of the blind cover body (21); the first electrical detection element and the second electrical detection element are both arranged on the first bracket (22); wherein a fourth mounting hole (122) is opened on the top plate (12); when the left side of the blind cover body (21) and the right side of the top plate (12) are in contact, the first bracket (22) drives the first electrical detection element and the second electrical detection element to pass through the fourth mounting hole (122) and extend into the protective cavity (111).

2. The protective cover device according to claim 1, characterized in that: The first bracket (22) is provided with a first mounting hole (221) and a second mounting hole (222); the first electrical detection element is threadedly connected to the first mounting hole (221); and the second electrical detection element is threadedly connected to the second mounting hole (222).

3. The protective cover device according to claim 2, characterized in that: The first bracket (22) is eccentrically arranged on the cover body (21).

4. The protective cover device according to claim 1, characterized in that: The blind cover further comprises a second bracket (23), and the second bracket (23) is arranged on the right side surface of the blind cover body (21).

5. The protective cover device according to claim 1, characterized in that: The cover body (21) is provided with a third mounting hole (211), and the third mounting hole (211) is used to mount a cable connected to the electrical detection element, the cable and the third mounting hole (211) are coaxially distributed, and the outer side wall of the cable abuts against the hole wall of the third mounting hole (211).

6. The protective cover device according to claim 1, characterized in that: The cover body (21) is provided with a first threaded hole (212), and the top plate (12) is provided with a second threaded hole (121) opposite to the first threaded hole (212), wherein the first threaded hole (212) is arranged corresponding to the second threaded hole (121).

7. The protective cover device according to claim 1, characterized in that: The protective cover body (11) is configured as a semi-cylindrical structure, and the top plate (12) and the cover body (21) are both configured as semi-circular structures.

8. The protective cover device according to claim 1, characterized in that: The protective cover shell further comprises a bottom plate (13) and a mounting tube (14); the bottom plate (13) is arranged at the left end of the protective cover body (11); the mounting tube (14) is arranged on the left side surface of the bottom plate (13) and is used for being sleeved on the proximity switch cover body.

9. The protective cover device according to claim 8, characterized in that: The left end of the installation tube (14) is provided with an assembly groove (141), and the proximity switch cover is used to be arranged in the assembly groove (141).

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