Hydraulic support oil cylinder welding repair turnover mechanism for coal mine

Abstract

The utility model discloses a hydraulic support oil cylinder welding repair turnover mechanism for a coal mine. The hydraulic support oil cylinder welding repair turnover mechanism comprises a base body, a rotary table and a power assembly. According to the scheme, the hydraulic support oil cylinder is borne through the rotary table, the base body can provide an installation foundation for the power assembly and can provide support for the rotary table loaded with the hydraulic support oil cylinder in the horizontal posture, and the rotary table can be rotated to the vertical posture from the horizontal posture with the edge of the base body as the rotating shaft through the power assembly; in the rotating process of the rotary table, the power assembly can stop output and conduct self-locking, so that the rotary table loaded with the hydraulic support oil cylinder is kept in the current inclined posture, and the posture requirement for the hydraulic support oil cylinder in the machining process of the hydraulic support oil cylinder is met.

Description

Technical Field

[0001] The utility model relates to the technical field of jigs, in particular to a hydraulic support cylinder welding repair flipping mechanism for coal mines. Background Art

[0002] The hydraulic support cylinder (column) is an important part of ensuring the safety of coal mine production. The surface inspection and repair process of the hydraulic support cylinder is one of the key processes in the remanufacturing of the hydraulic support cylinder, which mainly includes the quality inspection, replacement and maintenance of accessories such as the joint seat, liquid pipe and cylinder body. Among them, the replacement of the joint seat is one of the most frequent operations, including three processes of cutting, welding and grinding. The above three processes need to be completed on the working platform and the vertical tooling frame respectively. In the existing technology, the cylinder body is lifted from the horizontal position to the welding position by a crane for welding. In this process, the crane needs to be used for multiple lifting and flipping, and the welding efficiency is low. The hydraulic support cylinder has a high lifting height and will shake during the movement, which poses a safety hazard. Utility Model Content

[0003] In view of this, the utility model provides a hydraulic support cylinder welding, repair and flipping mechanism for coal mines, which can carry the hydraulic support cylinder through a turntable, the base can provide an installation foundation for the power component, and can provide support for the turntable carrying the hydraulic support cylinder in a horizontal posture, and the turntable can be rotated from a horizontal posture to a vertical posture with the edge of the base as the rotation axis through the power component. During the rotation of the turntable, the power component can stop output and self-lock, so that the turntable carrying the hydraulic support cylinder can maintain the current inclined posture, thereby meeting the posture requirements for the hydraulic support cylinder during the hydraulic support cylinder processing process.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A hydraulic support cylinder welding repair flipping mechanism for coal mines, comprising:

[0006] A base body, comprising a bearing portion and an abutment portion located at an edge of the bearing portion;

[0007] A turntable, comprising at least a limiting portion for supporting the hydraulic support cylinder in a horizontal posture, and at least a supporting portion for supporting the hydraulic support cylinder in a vertical posture, wherein the turntable can be placed horizontally on the bearing portion;

[0008] The power assembly is rotatably connected to the base and the turntable, and is used to drive the turntable to rotate around the abutment portion to a vertical state away from the bearing portion.

[0009] Preferably, the turntable is provided with a limit block for preventing two adjacent hydraulic support cylinders from approaching each other.

[0010] Preferably, an anti-tilt assembly for preventing the hydraulic support cylinder from detaching from the turntable is provided on the turntable, and the hydraulic support cylinder is placed between the anti-tilt assembly and the turntable.

[0011] Preferably, the anti-tilt assembly includes a support rod and a stop rod arranged on the turntable, the stop rod is plugged into the support rod, and a locking member is detachably connected to the stop rod for preventing the stop rod from detaching from the support rod, and the hydraulic support cylinder is located between the stop rod and the turntable.

[0012] Preferably, the anti-tilt assembly includes a support rod and a stop rod arranged on the turntable, the support rod is rotatably connected to the turntable, the stop rod is fixed on the support rod and is used to rotate to above the top end of the hydraulic support cylinder, and the hydraulic support cylinder is located between the stop rod and the turntable.

[0013] Preferably, the turntable has a stopper for preventing the support rod from rotating. When the turntable is placed horizontally, the support rod is tilted away from the top of the hydraulic support cylinder, and the stopper abuts against the side of the support rod away from the top of the hydraulic support cylinder.

[0014] Preferably, the turntable is in the form of a frame, and a plurality of reinforcing ribs arranged along the length direction of the hydraulic support cylinder are fixedly connected to the turntable.

[0015] Preferably, a baffle is fixedly connected to the turntable for preventing the hydraulic support cylinder from detaching from the side of the turntable.

[0016] Preferably, the baffle extends from the center of the side of the turntable to the end of the side of the turntable, and the baffle protrudes outward at the position of the support portion.

[0017] It can be seen from the above technical scheme that the coal mine hydraulic support cylinder welding, repair and flipping mechanism provided by the utility model carries the hydraulic support cylinder through a turntable. The base can provide an installation foundation for the power component and can provide support for the turntable carrying the hydraulic support cylinder in a horizontal posture. The turntable can be rotated from a horizontal posture to a vertical posture with the edge of the base as the rotation axis through the power component. During the rotation of the turntable, the power component can stop output and self-lock, so that the turntable carrying the hydraulic support cylinder remains in the current inclined posture, thereby meeting the posture requirements for the hydraulic support cylinder during the hydraulic support cylinder processing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram showing the structure of a hydraulic support cylinder welding repair flipping mechanism for a coal mine according to an exemplary embodiment;

[0020] Figure 2 is a schematic diagram showing the structure of a hydraulic support cylinder welding repair flip mechanism for a coal mine according to another exemplary embodiment;

[0021] Figure 3 is a schematic diagram showing a base structure according to an exemplary embodiment;

[0022] Figure 4 is a schematic diagram showing a turntable structure according to an exemplary embodiment;

[0023] Figure 5 According to an exemplary embodiment Figure 3 The middle is an enlarged view of part A showing the structure of the connection block;

[0024] Figure 6 According to an exemplary embodiment, Figure 2 The middle is an enlarged view of part B showing the location of the connection block;

[0025] Figure 7 According to an exemplary embodiment, Figure 1 The middle is an enlarged view of part C showing the position of the locking piece;

[0026] Figure 8 According to an exemplary embodiment Figure 4 The middle is an enlarged view of the D part showing the position of the support rod;

[0027] Fig. 9 According to an exemplary embodiment, Figure 2 The middle is an enlarged view of part E showing the position of the stopper.

[0028] Reference numerals:

[0029] 1. Base; 11. Bearing part; 12. Abutment part; 13. Connecting block; 2. Turntable; 21. Limiting part; 22. Supporting part; 23. Reinforcing rib; 24. Baffle; 241. First blocking part; 242. Second blocking part; 3. Power assembly; 4. Anti-tilt assembly; 41. Support rod; 42. Baffle rod; 43. Locking member; 5. Limiting block; 6. Baffle. DETAILED DESCRIPTION

[0030] The utility model discloses a hydraulic support cylinder welding repair flipping mechanism for coal mines. The hydraulic support cylinder can be carried by a turntable. The base can provide an installation foundation for a power component and can provide support for the turntable carrying the hydraulic support cylinder in a horizontal posture. The turntable can be rotated from a horizontal posture to a vertical posture with the edge of the base as the rotation axis through the power component. During the rotation of the turntable, the power component can stop output and self-lock, so that the turntable carrying the hydraulic support cylinder is kept in the current inclined posture, thereby meeting the posture requirements for the hydraulic support cylinder during the processing of the hydraulic support cylinder.

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] In an exemplary embodiment of the present disclosure, a hydraulic support cylinder welding repair flipping mechanism for a coal mine is provided, such as Figure 1 As shown, Figure 1 It is a schematic diagram showing the structure of a hydraulic support cylinder welding repair flipping mechanism for a coal mine according to an exemplary embodiment; Figure 2 is a schematic diagram showing the structure of a hydraulic support cylinder welding repair flip mechanism for a coal mine according to another exemplary embodiment; Figure 3 is a schematic diagram showing a base structure according to an exemplary embodiment; Figure 4 is a schematic diagram showing a turntable structure according to an exemplary embodiment; Figure 5 According to an exemplary embodiment, Figure 3 The middle is an enlarged view of part A showing the structure of the connection block; Figure 6 According to an exemplary embodiment, Figure 2 The middle is an enlarged view of part B showing the location of the connection block; Figure 7 According to an exemplary embodiment, Figure 1 The middle is an enlarged view of part C showing the position of the locking piece; Figure 8 According to an exemplary embodiment, Figure 4 The middle is an enlarged view of the D part showing the position of the support rod; Fig. 9 According to an exemplary embodiment, Figure 2 The middle is an enlarged view of part E showing the position of the stopper. Figures 1 to 9 Provide explanation.

[0033] Some specific implementation modes described below are intended to facilitate those skilled in the art to understand the present embodiment, and the present embodiment is not limited to some specific implementation modes described below.

[0034] Reference Figure 1 and Figure 2 An exemplary embodiment of the present disclosure provides a hydraulic support cylinder welding repair flipping mechanism for coal mines, and the hydraulic support cylinder welding repair flipping mechanism for coal mines includes:

[0035] The base 1 comprises a bearing portion 11 and an abutting portion 12 located at the edge of the bearing portion 11;

[0036] The turntable 2 includes a limiting portion 21 for supporting at least a hydraulic support cylinder in a horizontal position, and a supporting portion 22 for supporting at least a hydraulic support cylinder in a vertical position. The turntable 2 can be placed horizontally on the bearing portion 11;

[0037] The power assembly 3 is rotatably connected to the base 1 and the turntable 2 , and is used to drive the turntable 2 to rotate around the abutment portion 12 to a vertical state away from the bearing portion 11 .

[0038] For example, refer to Figure 1 and Figure 3 The base 1 is a cage-shaped structure formed by welding a plurality of steel sections. The top surface of the base 1 is horizontally arranged to form a bearing portion 11 , and the edge of one side of the top surface of the base 1 forms an abutment portion 12 .

[0039] Reference Figure 2 and Figure 4 The turntable 2 is a frame structure formed by welding multiple steel sections. A bottom plate arranged perpendicular to the turntable 2 is fixedly connected to one side of the turntable 2. When the turntable 2 is placed horizontally, the bottom plate is arranged vertically. A limiting portion 21 is formed on the top surface of the horizontal turntable 2, and a bearing portion 11 is formed on the side of the bottom plate facing the turntable 2. The side wall of the hydraulic support cylinder placed on the turntable 2 abuts against the limiting portion 21 and the bottom end abuts against the supporting portion 22.

[0040] Reference Figure 2 and Figure 4The turntable 2 is fixedly connected with a baffle 24 for preventing the hydraulic support cylinder from being separated from the side of the turntable 2. The baffle 24 extends from the center of the side of the turntable 2 to the side end of the turntable 2. The two ends of the bottom plate used to form the support portion 22 extend to the opposite sides of the turntable 2 respectively, and the ends of the baffle 24 are engaged with the ends of the support portion 22. The baffle 24 includes a first blocking portion 241 fixedly connected to one side of the limiting portion 21 and perpendicular to the turntable 2, and a second blocking portion 242 fixedly connected to one side of the support portion 22 and coplanar with the first blocking portion 241. The second blocking portion 242 is located at the support portion 22 and protrudes in a direction away from the limiting portion 21. The first blocking portion 241 is used to reduce the possibility of the hydraulic support cylinder on the limiting portion 21 falling off the edge of the turntable 2 during the rotation of the turntable 2. The second blocking portion 242 is used to reduce the possibility of the bottom end of the hydraulic support cylinder on the supporting portion 22 shaking and tilting during the rotation of the turntable 2. At the same time, when the hydraulic support cylinder is placed on the turntable 2, the second blocking portion 242 with a higher height can provide limiting and guiding effects for the hydraulic support cylinder. For example, the bottom end of the hydraulic support cylinder is first placed on the turntable 2 between the two second blocking portions 242. The second blocking portion 242 is used to limit and guide the hydraulic support cylinder, and the hydraulic support cylinder is gradually moved to a position that fits the limiting portion 21 in small increments.

[0041] Reference Figure 1 and Figure 2 The power assembly 3 includes a hydraulic cylinder, the cylinder end of the hydraulic cylinder as the power assembly 3 is hinged to the bottom side of the cage-shaped base 1, the piston rod end of the hydraulic cylinder extends obliquely upward toward the other side of the base 1, and is hinged to the side wall of the turntable 2 away from the limiting portion 21, and the rotation axis of the two ends of the hydraulic cylinder is parallel. When the piston rod of the hydraulic cylinder as the power assembly 3 is in the minimum stroke state, the turntable 2 is horizontally placed and the side wall of the turntable 2 away from the limiting portion 21 abuts against the bearing portion 11 and the abutting portion 12 at the same time. When the piston rod of the hydraulic cylinder as the power assembly 3 is in the maximum stroke state, the turntable 2 is vertically placed and the side wall of the turntable 2 away from the limiting portion 21 contacts the abutting portion 12. At this time, the bottom plate of the support portion 22 away from the side wall of the limiting portion 21 is used to abut against the ground or other bearing foundations, and at this time, the inclination angle of the hydraulic cylinder as the power assembly 3 relative to the ground is smaller than the inclination angle of the hydraulic cylinder relative to the ground when the turntable 2 is horizontal.

[0042] In this embodiment, refer to Figure 5 and Figure 6, a connecting block 13 is hinged at the end of the piston rod of the hydraulic cylinder as the power component 3. The rotation axis of the connecting block 13 is perpendicular to the piston rod of the hydraulic cylinder as the power component 3 and is arranged horizontally. The connecting block 13 is also fixedly connected to the turntable 2. Similarly, a connecting block 13 is also hinged at the top of the side wall of the base 1. The connecting block 13 here is located at the edge of the bearing part 11 and serves as the abutment part 12. The rotation axis of the connecting block 13 here is parallel to the rotation axis of the connecting block 13 at the end of the hydraulic cylinder. The connecting block 13 here is fixedly connected to the turntable 2. The connecting block 13 hinged to the edge of the bearing part 11 can rotate around its own axis and be clamped with the base 1 in a linear direction. The connecting block 13 hinged to the end of the piston rod of the hydraulic cylinder as the power component 3 can rotate around its own axis and be clamped with the turntable 2 in a linear direction. The turntable 2 can always maintain connection with the abutment portion 12 through the hydraulic cylinder that can rotate relative to the base 1 and the connection blocks 13 that are separately arranged on the hydraulic cylinder and the base 1, that is, the turntable 2 always maintains connection with the base 1 and is turned upward from a horizontal position lying on the bearing portion 11 under the action of the hydraulic cylinder as the power component 3 until it rotates to a vertical position located on one side of the base 1. In order to provide balanced and stable support for the turntable 2, two hydraulic cylinders as the power component 3 can be provided, and the two hydraulic cylinders are spaced apart along the length direction of the abutment portion 12.

[0043] In an exemplary embodiment of the present disclosure, referring to Figure 4 and Figure 6 A plurality of reinforcing ribs 23 arranged along the length direction of the hydraulic support cylinder are fixedly connected to the turntable 2. The reinforcing ribs 23 are perpendicular to the supporting portion 22. The reinforcing ribs 23 can enhance the bending strength of the turntable 2 and reduce the possibility of compression deformation during the rotation of the turntable 2 carrying the hydraulic support cylinder.

[0044] By carrying the hydraulic support cylinder through the turntable 2, the base 1 can provide an installation foundation for the power component 3, and can provide support for the turntable 2 carrying the hydraulic support cylinder in a horizontal posture. The turntable 2 can be rotated from a horizontal posture to a vertical posture with the edge of the base 1 as the axis through the power component 3. During the rotation of the turntable 2, the power component 3 can stop output and self-lock, so that the turntable 2 carrying the hydraulic support cylinder can be maintained in the current inclined posture, thereby meeting the posture requirements for the hydraulic support cylinder during the processing of the hydraulic support cylinder.

[0045] In an exemplary embodiment of the present disclosure, referring to Figure 6 and Figure 7 The turntable 2 is provided with a limit block 5 for preventing the oil cylinders of two adjacent hydraulic supports from approaching each other.

[0046] For example, refer to Figure 6 and Figure 7The limit block 5 is fixedly connected to the limit portion 21 and extends in a direction away from the limit portion 21. There are multiple limit blocks 5 and they are spaced apart along the length direction of the abutment portion 12. The limit blocks 5 divide the limit portion 21 along the length direction of the abutment portion 12 into multiple areas for accommodating a single hydraulic support cylinder. The opposite side walls of two adjacent limit portions 21 distributed along the length direction of the abutment portion 12 are inclined, and the limit blocks 5 are reduced in diameter in a direction away from the limit portion 21.

[0047] In this embodiment, the hydraulic support cylinder is placed between two adjacent limit blocks 5, and the limit blocks 5 limit the position and range of motion of the hydraulic support cylinder on the limit portion 21, thereby reducing the possibility of collision between the two adjacent hydraulic support cylinders. In addition, the limit block 5 is tilted and its side wall with a reduced diameter at the far end away from the limit portion 21 can provide a guiding effect for the hydraulic support cylinder. After contacting the side wall of the limit block 5, the outer wall of the hydraulic support cylinder approaching the limit portion 21 can move along the extension direction of the side wall and fall into the area between the two adjacent limit portions 21. At the same time, the inclined side wall of the limit portion 21 can also reduce the possibility of the edge of the end of the limit portion 21 contacting the side wall of the hydraulic support cylinder, and reduce the possibility of the outer wall of the hydraulic support cylinder being damaged after contacting the limit block 5.

[0048] In an exemplary embodiment of the present disclosure, referring to Figure 1 and Figure 2 An anti-tilt assembly 4 for preventing the hydraulic support cylinder from leaving the turntable 2 is provided on the turntable 2, and the hydraulic support cylinder is placed between the anti-tilt assembly 4 and the turntable 2.

[0049] For example, refer to Figure 1 and Figure 7 The anti-tilt assembly 4 includes a support rod 41 and a stop rod 42 disposed on the turntable 2. The support rod 41 is disposed perpendicular to the turntable 2. One end of the support rod 41 is fixedly connected to the turntable 2. The other end of the support rod 41 extends in a direction away from the limiting portion 21. The support rods 41 are fixedly connected to opposite sides of the turntable 2. Both ends of the stop rod 42 are respectively plugged into the support rods 41 located on opposite sides of the turntable 2. The stop rod 42 is disposed horizontally. The blocking rod 42 is detachably connected to a locking piece 43 for preventing the blocking rod 42 from being separated from the support rod 41. The locking piece 43 can be a nut threadedly connected to the blocking rod 42 and passing through one end of the support rod 41. The nut limits the position of the blocking rod 42 relative to the support rod 41, thereby reducing the possibility of the support rod 41 separating from the blocking rod 42. A space for accommodating the hydraulic support cylinder is formed between the blocking rod 42 and the turntable 2 through the support rod 41, and the hydraulic support cylinder is placed between the blocking rod 42 and the turntable 2, and the blocking rod 42 reduces the possibility of the hydraulic support cylinder separating from the turntable 2.

[0050] In an exemplary embodiment of the present disclosure, referring to Figure 4 and Figure 8The anti-tilt assembly 4 includes a support rod 41 and a stop rod 42 arranged on the turntable 2. The support rod 41 is rotatably connected to the turntable 2. The stop rod 42 is fixed on the support rod 41 and is used to rotate to above the top end of the hydraulic support cylinder. The hydraulic support cylinder is located between the stop rod 42 and the turntable 2.

[0051] For example, refer to Figure 8 and Fig. 9 One end of the support rod 41 is hinged to the turntable 2, and the other end extends in a direction away from the turntable 2. The rotation axis of the support rod 41 is parallel to the turntable 2 and perpendicular to the length direction of the reinforcing rib 23. The two opposite sides of the turntable 2 are fixedly connected with the support rods 41. The two ends of the blocking rod 42 are respectively fixedly connected to the two support rods 41 located on the opposite sides of the turntable 2. The blocking rod 42 is parallel to the turntable 2 and perpendicular to the length direction of the reinforcing rib 23. The support rod 41 can rotate to a position where its free end is located on one side of the limiting portion 21, and can rotate to a position where its free end is flush with the edge of the limiting portion 21. That is, by rotating the support rod 41, the blocking rod 42 can be rotated to a position on the limiting portion 21 away from the supporting portion 22, so as to avoid the hydraulic support cylinder, and by rotating the support rod 41 to the side where the limiting portion 21 abuts against the hydraulic support cylinder, the blocking rod 42 can be rotated to the side of the hydraulic support cylinder away from the limiting portion 21, so as to provide a limit for the hydraulic support cylinder and reduce the possibility of the hydraulic support cylinder detaching from the turntable 2.

[0052] In this embodiment, refer to Figure 8 and Fig. 9 The side wall of the turntable 2 is fixedly connected with a stopper 6 for preventing the support rod 41 from rotating. One side wall of the stopper 6 is in contact with the side wall of the turntable 2, and the other side wall of the stopper 6 is inclined relative to the turntable 2 and is arranged toward the support rod 41. When the support rod 41 rotates until its free end is located on the side of the hydraulic support cylinder away from the limiting portion 21, the support rod 41 abuts against the inclined side wall of the stopper 6. At this time, the support rod 41 is set at an angle relative to the turntable 2, and the support rod 41 and the stopper rod 42 prevent the hydraulic support cylinder placed on the limiting portion 21 from leaving the limiting portion 21, and At this time, the opening process of the support rod 41 and the shift rod 42 needs to overcome the gravity of the support rod 41 and the shift rod 42 themselves, and move in a trajectory in the horizontal direction away from the limit portion 21 and the vertical direction of the support portion 22. When the hydraulic support cylinder tilts in the direction away from the limit portion 21, usually the top of the hydraulic support cylinder tilts in the direction away from the limit portion 21, that is, the hydraulic support cylinder will press on the shift rod 42 in an oblique downward direction, hindering the opening of the shift rod 42, so that the shift rod 42 can provide a stable and effective limiting effect for the hydraulic support cylinder.

[0053] When the turntable 2 is laid flat, the support rod 41 is tilted in the direction away from the top end of the hydraulic support cylinder, that is, the movable end of the support rod 41 extends obliquely upward toward the side of the support portion 22. At this time, the stopper 6 abuts against the side of the support rod 41 toward the support portion 22. The opening of the shift rod 42 requires the support rod 41 to move horizontally with the shift rod 42 in the direction away from the support portion 22, and requires the support rod 41 to move vertically with the shift rod 42 in the direction away from the limit portion 21. It can be seen that the special setting of the stopper 6 enables the support rod 41 and the shift rod 42 to remain in a closed state stably when the turntable 2 is laid flat, so that when the turntable 2 rotates from the flat position to the vertical position, the shift rod 42 can continuously provide an effective limiting effect on the hydraulic support cylinder, thereby reducing the possibility of the hydraulic support cylinder detaching from the turntable 2.

[0054] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A hydraulic support cylinder welding repair flipping mechanism for coal mines, characterized in that: include: A base body (1) comprising a bearing portion (11) and an abutment portion (12) located at an edge of the bearing portion (11); A turntable (2), comprising a limiting portion (21) for supporting at least the hydraulic support cylinder in a horizontal position, and a supporting portion (22) for supporting at least the hydraulic support cylinder in a vertical position, wherein the turntable (2) can be placed horizontally on the bearing portion (11); A power assembly (3) is rotatably connected to the base (1) and the turntable (2) and is used to drive the turntable (2) to rotate around the abutment portion (12) to a vertical state separated from the bearing portion (11).

2. The coal mine hydraulic support cylinder welding repair flipping mechanism according to claim 1 is characterized in that: The turntable (2) is provided with a limit block (5) for preventing two adjacent hydraulic support cylinders from approaching each other.

3. The coal mine hydraulic support cylinder welding repair flipping mechanism according to claim 1 is characterized in that: An anti-tilt assembly (4) for preventing the hydraulic support cylinder from detaching from the turntable (2) is provided on the turntable (2); the hydraulic support cylinder is disposed between the anti-tilt assembly (4) and the turntable (2).

4. The coal mine hydraulic support cylinder welding repair flipping mechanism according to claim 3 is characterized in that: The anti-tilt assembly (4) comprises a support rod (41) and a blocking rod (42) arranged on the turntable (2); the blocking rod (42) is plugged into the support rod (41); a locking member (43) is detachably connected to the blocking rod (42) for preventing the blocking rod (42) from being separated from the support rod (41); and the hydraulic support cylinder is located between the blocking rod (42) and the turntable (2).

5. The coal mine hydraulic support cylinder welding repair flipping mechanism according to claim 3 is characterized in that: The anti-tilt assembly (4) comprises a support rod (41) and a stop rod (42) arranged on the turntable (2); the support rod (41) is rotatably connected to the turntable (2); the stop rod (42) is fixed to the support rod (41) and is used to rotate to above the top end of the hydraulic support cylinder; the hydraulic support cylinder is located between the stop rod (42) and the turntable (2).

6. The coal mine hydraulic support cylinder welding repair flipping mechanism according to claim 5 is characterized in that: The turntable (2) has a stopper (6) for preventing the support rod (41) from rotating; when the turntable (2) is placed horizontally, the support rod (41) is tilted in a direction away from the top end of the hydraulic support cylinder, and the stopper (6) abuts against a side of the support rod (41) away from the top end of the hydraulic support cylinder.

7. The coal mine hydraulic support cylinder welding repair flipping mechanism according to claim 1 is characterized in that: The turntable (2) is in the form of a frame, and a plurality of reinforcing ribs (23) arranged along the length direction of the hydraulic support cylinder are fixedly connected to the turntable (2).

8. The coal mine hydraulic support cylinder welding repair flipping mechanism according to claim 1 is characterized in that: The turntable (2) is hinged to the base (1).

9. The coal mine hydraulic support cylinder welding repair flipping mechanism according to claim 1 is characterized in that: A baffle (24) is fixedly connected to the turntable (2) and is used to prevent the hydraulic support cylinder from detaching from the side of the turntable (2).

10. The coal mine hydraulic support cylinder welding repair flipping mechanism according to claim 9 is characterized in that: The baffle plate (24) extends from the center of the side of the turntable (2) to the end of the side of the turntable (2), and the baffle plate (24) protrudes outward at the position of the support portion (22).

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