A power cable processing SZ twisting device

Abstract

The present invention discloses an SZ twisting device for processing power cables, comprising a twisting machine shell, wherein a twisting component for twisting copper wires on the outer wall of the cable center line and a reinforcement component for preventing the copper wires from loosening after SZ twisting are installed inside the twisting machine shell; an opening is provided on both the left and right sides of the twisting machine shell, a limit plate is fixedly connected to the inner wall of the opening on the left side, a driving component is installed on the limit plate, the driving component comprises a twisting block rotatably connected to the limit plate, and the twisting block is made of solid hard rubber; the frequency of the current direction change is changed by a frequency converter, thereby changing the amplitude of the rotation of the metal conductor, that is, the amplitude of the rotation of the twisting block, thereby controlling the length of the copper wire twisted in S or Z on the outer wall of the cable center line, and the faster the frequency of the current direction change, that is, the lower the AC voltage cycle, the shorter the twisting length.

Description

Technical Field

[0001] The invention relates to the technical field of power cable processing equipment, in particular to a power cable processing SZ twisting device. Background Art

[0002] Power cables are used to transmit and distribute high-power electrical energy in the backbone lines of power systems. They are commonly used in urban underground power grids, power station outgoing lines, internal power supplies for industrial and mining enterprises, and underwater transmission lines across rivers and seas. SZ twisting is a method of twisting copper wires onto the outer wall of the cable's centerline. It is particularly suitable for fixed-layout cable centers such as power cables, control cables, and signal cables, as well as for cables for electrical equipment that require flexibility and are not subject to tensile stress. These cables have long been adopted by cable manufacturers in advanced countries. Typical applications include long-length submarine power cables and the manufacture of outer shielding for insulated cores. SZ twisting significantly reduces the number of cable centerline joints, minimizing potential failures, and increasing cable length. Furthermore, SZ-twisted cable centers present no challenges in installation and construction. However, existing SZ-twisting equipment for power cable processing cannot adjust the length of the copper wires twisted onto the cable centerline, reducing its practicality. Therefore, we propose a SZ-twisting device for power cable processing. Summary of the Invention

[0003] In order to make up for the above deficiencies, the present invention provides a power cable processing SZ twisting device.

[0004] The technical solution of the present invention is:

[0005] A power cable processing SZ twisting device, including a twisting machine housing, wherein a twisting component for twisting copper wires on the outer wall of the cable centerline and a reinforcement component for preventing the copper wires from loosening after SZ twisting are installed inside the twisting machine housing; an opening is provided on both sides of the twisting machine housing, and a limit plate is fixedly connected to the inner wall of the opening on the left side, and a driving component is installed on the limit plate, and the driving component includes a twisting block rotatably connected to the limit plate, and the twisting block is made of solid hard rubber; a metal conductor is provided on the inside of the twisting block, which is closed on the right side but not closed on the left side, and the metal conductor is symmetrically provided with two arc-shaped magnetic poles with different magnetic properties in the front and back, two sections of the metal conductor are parallel to the magnetic poles, and the two left sections of the metal conductor are respectively integrally formed with a connecting shaft, and the end of the connecting shaft away from the metal conductor is fixedly connected to the outer wall of the twisting block, and a frequency converter is provided on the outside of the twisting machine housing, and the two connecting shafts are respectively connected to the positive and negative poles of the frequency converter through two wires.

[0006] As an optimal technical solution, the cable management device includes a mounting plate and a cable management block fixed on the mounting plate, a fixed sleeve is fixedly connected to the center of the cable management block; a plurality of horizontal holes and inclined holes connected to the horizontal holes are provided inside the cable management block, and a reinforcement block is fixedly connected to the front and rear sides of the mounting plate; a steel pipe is fixedly connected inside the fixed sleeve, the steel pipe passes through the cable management block, and the right end of the steel pipe extends close to the opening.

[0007] As an optimal technical solution, the twisted block is located on the circumferential outer wall on the left side of the limit plate and is integrally formed with several limit blocks. The twisted block is provided with a copper wire inlet hole for the copper wire to pass through, and a metal sleeve is fixed on the inner wall of the copper wire inlet hole; the central angle of each magnetic pole is between 135 degrees and 150 degrees, and the central angles of the two magnetic poles are equal.

[0008] As a preferred technical solution, a first base is provided below the magnetic pole, the first base is fixedly connected to both of the magnetic poles, and the first base is fixedly connected to the bottom inner wall of the stranding machine housing.

[0009] As a preferred technical solution, the reinforcement assembly includes an outermost mounting block, the bottom of the mounting block is fixedly connected to a second base, and the bottom of the second base is fixedly connected to the inner wall of the stranding machine housing.

[0010] As a preferred technical solution, two supporting sleeves are provided in the mounting block, and the bottom of each supporting sleeve is symmetrically fixed to connect with two supporting plates, and the bottom of the supporting plate is fixedly connected to the inner wall of the mounting block.

[0011] As a preferred technical solution, an annular turntable is rotatably connected between the two support sleeves in the mounting block, an inner extension rod is fixedly connected to the inner wall of the annular turntable, and an extrusion roller extending to the bottom of the inner extension rod is rotatably connected to the bottom of the inner extension rod, and the distance between the bottom of the extrusion roller and the center of the support sleeve is less than the radius of the center line of the cable after being wrapped with copper wire.

[0012] As an optimal technical solution, a gear ring is fixedly connected to the right outer wall of the annular turntable, a small gear is engaged at the top of the gear ring, and a groove for the annular turntable, the gear ring and the gear ring to move is opened at the center of the mounting block.

[0013] As a preferred technical solution, a transmission shaft is coaxially fixed on the pinion, the right end of the transmission shaft extends to the outside of the mounting block, and a drive motor is fixed to the right outer wall of the mounting block by bolts, and the transmission shaft is coaxially fixed with the output shaft of the drive motor.

[0014] As an optimal technical solution, a support base is fixedly connected to the front and rear sides of the bottom of the stranding machine housing, a bottom plate is provided at the bottom of the support base, both support bases are fixedly connected to the bottom plate, and the frequency converter is fixedly connected to the bottom plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention can convert AC power into DC power and then convert DC power into AC power of a specified frequency through the frequency converter adopted. When used in this embodiment, the frequency converter can be used to periodically change the direction of the current entering the metal conductor. The metal conductor is located between two magnetic poles with different magnetic properties. The current-carrying conductor will rotate in the magnetic field, so the metal conductor can rotate back and forth between the two magnetic poles. Therefore, the metal conductor can drive the twisting block to rotate back and forth through the metal conductor, so that the copper wire sz can be twisted on the center line of the cable, and the frequency converter can be used to change the frequency of the current direction change, and then the amplitude of the metal conductor rotation, that is, the amplitude of the twisting block rotation, can be changed, and then the length of the copper wire twisted on the outer wall s or z of the cable center line can be controlled. The faster the frequency of the current direction change, that is, the lower the AC voltage cycle, the shorter the twisting length. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 Schematic diagram of the structure of the stranding machine housing and its internal and external structures in the present invention

[0019] Figure 3 For the present invention Figure 1 Schematic diagram of the structure after removing the stranding machine shell;

[0020] Figure 4 Schematic diagram of the structure of the twisted component in the present invention;

[0021] Figure 5 Schematic diagram of the partial structure of the twisted component in the present invention;

[0022] Figure 6 It is a structural schematic diagram of the reinforcement component in the present invention;

[0023] Figure 7 is a cross-sectional view of the reinforcement assembly of the present invention;

[0024] Figure 8 For the present invention Figure 6 Right view;

[0025] Figure 9 Schematic diagram of the structure of the annular turntable and its connecting parts in the present invention;

[0026] Figure 10 Schematic diagram of the structure of the cable management device of the present invention;

[0027] Figure 11 It is a cross-sectional view of the cable management block in the present invention.

[0028] The meaning of each number in the figure is:

[0029] Twister housing 1; opening 10; support base 11; twisting component 2; magnetic pole 20; limiting plate 21; driving component 22; twisting block 220; copper wire inlet hole 221; limiting block 222; metal conductor 223; connecting shaft 224; first base 23; conductor 24; inverter 25; reinforcement assembly 3; mounting block 30; second base 31; supporting sleeve 32; supporting plate 320; driving motor 33; transmission shaft 34; annular turntable 35; pinion 36; ring gear 37; inner extension rod 38; extrusion roller 39; wire management device 4; mounting plate 40; fixing sleeve 41; wire management block 42; horizontal hole 420; inclined hole 421; reinforcement block 43; steel pipe 5; bottom plate 6. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] 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 to 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, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0032] See also Figure 1-11 , the present invention provides a technical solution:

[0033] A power cable processing SZ twisting device includes a twisting machine housing 1, inside which are installed a twisting component 2 for twisting copper wires on the outer wall of the cable center line and a reinforcement component 3 for preventing the copper wires from loosening after SZ twisting; an opening 10 is opened on both the left and right sides of the twisting machine housing 1, and a limit plate 21 is fixedly connected to the inner wall of the opening 10 on the left side, and a driving component 22 is installed on the limit plate 21, and the driving component 22 includes a twisting block 220 rotatably connected to the limit plate 21, and the twisting block 220 is made of solid hard rubber; the twisting block 22 0 is provided on the inside with a metal conductor 223 that is closed on the right side but not on the left side. The metal conductor 223 is symmetrically provided with two arc-shaped magnetic poles 20 with different magnetic properties. Two sections of the metal conductor 223 are parallel to the magnetic poles 20. The two left sections of the metal conductor 223 are each integrally formed with a connecting shaft 224. The end of the connecting shaft 224 away from the metal conductor 223 is fixedly connected to the outer wall of the twisting block 220. An inverter 25 is provided outside the twisting machine housing 1. The two connecting shafts 224 are respectively connected to the positive and negative poles of the inverter 25 via two wires 24.

[0034] It should be added that the frequency converter 25 used in this embodiment can convert AC power into DC power and then convert DC power into AC power of a specified frequency. When used in this embodiment, the frequency converter 25 can be used to periodically change the direction of the current entering the metal conductor 223. The metal conductor 223 is located between two magnetic poles 20 with different magnetic properties. The current-carrying conductor will rotate in the magnetic field, so the metal conductor 223 can rotate back and forth between the two magnetic poles 20. Therefore, the metal conductor 223 can drive the twisting block 220 to rotate back and forth, so that the copper wire sz can be twisted on the center line of the cable, and the frequency converter 25 can be used to change the frequency of the current direction change, and then the amplitude of the rotation of the metal conductor 223, that is, the amplitude of the rotation of the twisting block 220, can be changed, thereby controlling the length of the copper wire twisted on the outer wall s or z of the cable center line. The faster the frequency of the current direction change, that is, the lower the AC voltage cycle, the shorter the twisting length.

[0035] As a preferred embodiment of this embodiment, the wire management device 4 includes a mounting plate 40 and a wire management block 42 fixed on the mounting plate 40, and a fixed sleeve 41 is fixedly connected to the center of the wire management block 42; there are several horizontal holes 420 and inclined holes 421 connected to the horizontal holes 420 inside the wire management block 42, and a reinforcement block 43 is fixedly connected on the front and back sides of the mounting plate 40; a steel pipe 5 is fixedly connected inside the fixed sleeve 41, the steel pipe 5 passes through the wire management block 42, and the right end of the steel pipe 5 extends to near the opening 10.

[0036] It should be noted that, with the help of the horizontal hole 420 and the inclined hole 421 in the wire management block 42, the wires can be led to the same height as the copper wire entry hole 221, thereby facilitating the entry of the copper wires and also avoiding the intersection of many copper wires. The steel pipe 5 is provided to facilitate the passage of the cable center line.

[0037] It should be added that, in this embodiment, the center of the steel pipe 5 and the center of the opening 10 are on the same horizontal straight line.

[0038] As a preferred embodiment of the present invention, a plurality of limit blocks 222 are integrally formed on the circumferential outer wall of the twisted block 220 located on the left side of the limit plate 21. A copper wire inlet hole 221 is provided on the twisted block 220 for the copper wire to pass through, and a metal sleeve is fixed on the inner wall of the copper wire inlet hole 221. The central angle of each magnetic pole 20 is between 135 degrees and 150 degrees, and the central angles of the two magnetic poles 20 are equal.

[0039] It should be noted that the limit block 222 can prevent the twisted block 220 from detaching from the limit plate 21 due to the friction of numerous copper wires. Installing a metal sleeve on the inner wall of the copper wire inlet hole 221 can reduce the wear of the copper wire on the twisted block 220. Because the twisted block 220 in this embodiment is made of hard rubber, if it directly contacts the high-speed moving copper wire, it will generate a lot of heat, thereby damaging the twisted block 220.

[0040] It should be noted that this arrangement can ensure that the metal conductor 223 will not rotate more than half a circle, thereby causing the wire to be entangled, and the magnetic pole 20 with a central angle between 135 degrees and 150 degrees can meet the rotation requirements of the metal conductor 223.

[0041] As a preference of this embodiment, a first base 23 is provided below the magnetic pole 20 , the first base 23 is fixedly connected to both magnetic poles 20 , and the first base 23 is fixedly connected to the bottom inner wall of the stranding machine housing 1 .

[0042] It should be noted that, in this embodiment, the first base 23 is made of non-metallic material, specifically wood.

[0043] As a preference of this embodiment, the reinforcement assembly 3 includes an outermost mounting block 30 , the bottom of the mounting block 30 is fixedly connected to a second base 31 , and the bottom of the second base 31 is fixedly connected to the inner wall of the stranding machine housing 1 .

[0044] It should be added that the mounting block 30 in this embodiment is cylindrical, and the height of its center is equal to the height of the center of the opening 10. This arrangement allows the center line of the cable with twisted copper wires to easily enter the reinforcement component 3.

[0045] As a preference of this embodiment, two support sleeves 32 are provided in the mounting block 30 , and the bottom of each support sleeve 32 is symmetrically fixed to connect with two support plates 320 , and the bottom of the support plate 320 is fixedly connected to the inner wall of the mounting block 30 .

[0046] It should be noted that by providing the support sleeve 32, the cable center line that is always in motion can be supported, and the inner diameter of the support sleeve 32 in this embodiment is equal to the diameter of the cable center line after the copper wire is twisted. This can fix the movement direction of the cable center line and ensure that the copper wire on the outer wall of the cable center line can fully contact the extrusion roller 39 and generate extrusion.

[0047] It should be added that, when in use, the device of this embodiment can adjust the feed speed of the cable center line and the cycle of the AC voltage so that the cable center line can move from the right side of the twisting block 220 to directly below the extrusion roller 39 within half a cycle of the AC voltage. At this time, the copper wire on the outer wall of the cable center line has just been twisted once and is immediately compacted by the extrusion roller 39 after twisting, so as to prevent the copper wire from loosening after twisting.

[0048] As a preferred embodiment of this invention, an annular turntable 35 is rotatably connected between the two supporting sleeves 32 in the mounting block 30, an inner extension rod 38 is fixedly connected to the inner wall of the annular turntable 35, and an extrusion roller 39 extending to the bottom of the inner extension rod 38 is rotatably connected to the bottom of the inner extension rod 38. The distance between the bottom of the extrusion roller 39 and the center of the supporting sleeve 32 is less than the radius of the center line of the cable after the copper wire is wrapped around it.

[0049] It should be noted that this setting can ensure that the bottom of the extrusion roller 39 can fully contact and squeeze the copper wire twisted on the outer wall of the cable center line. It should be added that the middle part of the extrusion roller 39 in this embodiment is cylindrical, and the two sides of the cylinder are conical. This can increase the pressure between the outer wall of the extrusion roller 39 and the copper wire, so that the extrusion roller 39 can press the copper wire more tightly.

[0050] As a preferred embodiment of this invention, a gear ring 37 is fixedly connected to the right outer wall of the annular turntable 35, a pinion 36 is engaged at the top of the gear ring 37, and a groove for the annular turntable 35, the gear ring 37 and the gear ring 37 to move is provided at the center of the mounting block 30.

[0051] It should be added that the width of the groove provided in this embodiment is equal to the sum of the thicknesses of the annular turntable 35 and the gear ring 37 , which can reinforce the movement of the annular turntable 35 and prevent it from deviating during rotation.

[0052] As a preferred embodiment of this invention, a transmission shaft 34 is coaxially fixed on the pinion 36, and the right end of the transmission shaft 34 extends to the outside of the mounting block 30. A drive motor 33 is fixed to the right outer wall of the mounting block 30 by bolts, and the transmission shaft 34 is coaxially fixed with the output shaft of the drive motor 33.

[0053] It should be noted that the drive motor 33 drives the transmission shaft 34 to rotate and then drives the pinion 36 to rotate, and the rotation of the pinion 36 drives the ring gear 37 to rotate, that is, the annular turntable 35 can be driven to rotate. The rotation of the annular turntable 35 can rotate the extrusion roller 39 around the center line of the cable. While avoiding repeated extrusion of the copper wire, it can also make the copper wire and the center line of the cable fit more tightly.

[0054] It should be noted that the time it takes for the ring gear 37 to rotate once in this embodiment is less than half a cycle of the AC voltage. The drive motor 33 in this embodiment is a servo motor, meaning that the time it takes for the ring gear 37 to rotate once can be controlled by controlling the speed of the drive motor 33.

[0055] As a preferred embodiment of this invention, a support base 11 is fixedly connected to the front and rear sides of the bottom of the stranding machine casing 1, a base plate 6 is provided at the bottom of the support base 11, both support bases 11 are fixedly connected to the base plate 6, and the frequency converter 25 is fixedly connected to the base plate 6; the mounting plate 40 and the reinforcement block 43 are both fixed on the base plate 6.

[0056] When the power cable processing SZ twisting device of the present invention is in use, after adjusting the cable center line feeding speed, the AC frequency and the time for the gear ring 37 to rotate one circle, the cable center line and the copper wire are fed into the twisting component 2 at the same time, and the twisting block 220 is driven to rotate back and forth by the metal conductor 223, so that the copper wire SZ can be twisted on the cable center line. After the copper wire is twisted, the cable center line enters the reinforcement component 3, and the transmission shaft 34 is driven to rotate by the driving motor 33, and then the pinion 36 is driven to rotate, and the gear ring 37 is driven to rotate by the rotation of the pinion 36, that is, the annular turntable 35 can be driven to rotate, and then the copper wire is pressed tightly under the action of the extrusion roller 39 so that the copper wire is tightly fitted to the outer wall of the cable center line. The cable center line processed by the reinforcement component 3 goes out through the opening 10 on the right.

[0057] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A power cable processing SZ stranding device, characterized by: The invention comprises a twisting machine housing (1), wherein a twisting component (2) for twisting copper wires on the outer wall of the cable center line and a reinforcement component (3) for preventing the copper wires from loosening after twisting are installed inside the twisting machine housing (1), and a wire arranging device (4) for arranging wires is provided on the left side of the twisting component (2); an opening (10) is provided on both the left and right sides of the twisting machine housing (1), and a limiting plate (21) is fixedly connected to the inner wall of the opening (10) on the left side, and a driving component (22) is installed on the limiting plate (21), and the driving component (22) includes a twisting block (220) rotatably connected to the limiting plate (21), and the twisting block (220) is made of solid hard rubber; the twisting block (2 20) is provided with a metal conductor (223) with a closed right side but an open left side, the metal conductor (223) is symmetrically provided with two arc-shaped magnetic poles (20) with different magnetic properties, two sections of the metal conductor (223) are parallel to the magnetic poles (20), and the two left sections of the metal conductor (223) are respectively integrally formed with a connecting shaft (224), and the end of the connecting shaft (224) away from the metal conductor (223) is fixedly connected to the outer wall of the twisting block (220), and a frequency converter (25) is provided outside the twisting machine housing (1), and the two connecting shafts (224) are respectively connected to the positive pole and the negative pole of the frequency converter (25) through two wires (24).

2. The power cable processing SZ stranding device according to claim 1, characterized in that: The cable management device (4) comprises a mounting plate (40) and a cable management block (42) fixed on the mounting plate (40); a fixed sleeve (41) is fixedly connected to the center of the cable management block (42); a plurality of horizontal holes (420) and inclined holes (421) connected to the horizontal holes (420) are provided inside the cable management block (42); a reinforcement block (43) is fixedly connected to both the front and rear sides of the mounting plate (40); a steel pipe (5) is fixedly connected inside the fixed sleeve (41); the steel pipe (5) passes through the cable management block (42), and the right end of the steel pipe (5) extends to a position close to the opening (10).

3. The power cable processing SZ stranding device according to claim 1, characterized in that: The twisted block (220) is integrally formed with a plurality of limit blocks (222) on the circumferential outer wall on the left side of the limit plate (21); a copper wire inlet hole (221) for copper wire to pass through is opened on the twisted block (220); a metal sleeve is fixed to the inner wall of the copper wire inlet hole (221); the central angle of each magnetic pole (20) is between 135 degrees and 150 degrees, and the central angles of the two magnetic poles (20) are equal.

4. The power cable processing SZ stranding device according to claim 3, characterized in that: A first base (23) is provided below the magnetic pole (20), the first base (23) is fixedly connected to both of the magnetic poles (20), and the first base (23) is fixedly connected to the bottom inner wall of the stranding machine housing (1).

5. The power cable processing SZ stranding device according to claim 1, characterized in that: The reinforcement assembly (3) comprises an outermost mounting block (30), the bottom of the mounting block (30) being fixedly connected to a second base (31), and the bottom of the second base (31) being fixedly connected to the inner wall of the stranding machine housing (1).

6. The power cable processing SZ stranding device according to claim 5, characterized in that: Two supporting sleeves (32) are provided in the mounting block (30), and the bottom of each supporting sleeve (32) is symmetrically fixed to connect with two supporting plates (320), and the bottom of the supporting plate (320) is fixedly connected to the inner wall of the mounting block (30).

7. The power cable processing SZ stranding device according to claim 6, characterized in that: An annular turntable (35) is rotatably connected between the two supporting sleeves (32) in the mounting block (30), an inner extension rod (38) is fixedly connected to the inner wall of the annular turntable (35), and an extrusion roller (39) extending to the bottom of the inner extension rod (38) is rotatably connected to the bottom of the inner extension rod (38), and the distance between the bottom of the extrusion roller (39) and the center of the supporting sleeve (32) is less than the radius of the center line of the cable after the copper wire is wound.

8. The power cable processing SZ stranding device according to claim 7, characterized in that: A gear ring (37) is fixedly connected to the right outer wall of the annular turntable (35), a pinion (36) is meshed at the top of the gear ring (37), and a groove for the annular turntable (35), the gear ring (37) and the gear ring (37) to move is opened at the center of the mounting block (30).

9. The power cable processing SZ stranding device according to claim 8, characterized in that: A transmission shaft (34) is coaxially fixed on the pinion (36), and the right end of the transmission shaft (34) extends to the outside of the mounting block (30). A drive motor (33) is fixedly connected to the right outer wall of the mounting block (30) by bolts, and the transmission shaft (34) is coaxially fixed with the output shaft of the drive motor (33).

10. The power cable processing SZ stranding device according to claim 2, characterized in that: A support base (11) is fixedly connected to both the front and rear sides of the bottom of the stranding machine housing (1); a bottom plate (6) is provided at the bottom of the support base (11); the two support bases (11) are fixedly connected to the bottom plate (6); the frequency converter (25) is fixedly connected to the bottom plate (6); and the mounting plate (40) and the reinforcement block (43) are fixed to the bottom plate (6).

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