A support device for shield tunnel rail construction

Abstract

The present invention discloses a support device for shield tunnel rail construction, which belongs to the technical field of shield tunnel rail construction, and comprises a first bolt, a second bolt, an internal thread groove, a threaded portion, a lubricating sleeve, a piston, a moving assembly, a clamp and an oil injection assembly. The threaded portion is clamped on the left and right sides of a U-shaped part, and the first bolt and the second bolt are threadedly connected on the left side of the threaded portion. The first bolt and the second bolt are both provided with an internal thread groove. The lubricating sleeve is sleeved on the outside of the first bolt, and a piston is installed inside the lubricating sleeve. A moving assembly is provided on the left side of the piston, and a clamp is inserted above the piston. One end of the moving assembly is provided on the outside of the lubricating sleeve, and the moving assembly passes through the left side of the lubricating sleeve. The clamp passes through the upper end of the lubricating sleeve, and the oil injection assembly is provided on the right side of the clamp. The existing rail support device technology adopts a bolt fixing method, which causes the bolts to be screwed too tight or corroded, so that the bolts cannot be screwed out and are not easy to disassemble. The reuse rate of the support device is improved.

Description

Technical Field

[0001] The invention relates to the technical field of shield tunnel rail construction, in particular to a supporting device for shield tunnel rail construction. Background Art

[0002] During the construction of the section, the shield method is used. During the shield machine's advancement, on the one hand, due to the gap between the shield machine shell and the soil, the segment and the soil, as well as the untimely grouting and the shrinkage of the slurry itself, the soil will lose its stratum and cause the stratum to settle; on the other hand, the pre-pressure of the shield machine on the face is inconsistent with the water and soil pressure of the soil layer, causing the corresponding soil to be pulled and compressed, and to settle or bulge; at the same time, construction disturbance, water leakage, shield machine lowering and raising, over-excavation, etc. also cause the stratum to sink or rise. The above situations will cause the soil to rise or settle to varying degrees, causing the deformation of the soil in the existing line range, and then causing the settlement or uplift of the railway roadbed. When the deformation is too large, it will seriously affect the normal operation and safety of the railway. Therefore, a support device is needed. However, when the existing rail support device needs to be disassembled, it is fixed by bolts. If the bolts are tightened too tight or corroded, it will be difficult to unscrew the bolts, which makes the support device difficult to disassemble. Summary of the invention

[0003] To this end, the present invention provides a support device for shield tunnel rail construction to solve the problem that the existing rail support device technology uses bolt fixing, which causes the bolts to be too tight or corroded, making it difficult to unscrew the bolts and making them inconvenient to disassemble.

[0004] In order to achieve the above object, the present invention provides the following technical solutions:

[0005] The present invention discloses a support device for rail construction of a shield tunnel, wherein a concrete pile is installed above a rail body, a hoop plate is arranged above the rail body, a buckle rail is arranged below the hoop plate, a switch sleeper is arranged below the rail body, U-shaped pieces are arranged on both sides of the switch sleeper, and the support device for rail construction of a shield tunnel is arranged on both sides of the upper end of the U-shaped piece, comprising:

[0006] A threaded portion, clamped on the left and right sides of the U-shaped member, the left side of the threaded portion being threadedly connected with a first bolt and a second bolt, and the first bolt and the second bolt are both provided with an internal thread groove;

[0007] A lubricating sleeve is sleeved on the outside of the first bolt, a piston is installed inside the lubricating sleeve, a moving assembly is arranged on the left side of the piston, a clamp is inserted above the piston, one end of the moving assembly is arranged on the outside of the lubricating sleeve, the moving assembly passes through the left side of the lubricating sleeve, and the clamp passes through the upper end of the lubricating sleeve;

[0008] An oil injection assembly is arranged on the right side of the clamp, and the lower end of the oil injection assembly passes through the lubricating sleeve;

[0009] The lubricating sleeve and the first bolt form a hollow structure, the piston is arranged in the hollow structure, and the oil injection assembly is connected to one end of the piston.

[0010] In a possible implementation, the piston includes:

[0011] A piston chamber is installed on the left side of the first bolt, and the left side of the piston chamber is drivingly connected to a piston plate;

[0012] A piston rod, mounted on the left side of the piston plate;

[0013] A liquid pipe has one end mounted on the right end of the piston cavity and the other end inserted into the liquid cavity. The liquid cavity is provided with a plurality of liquid holes and is arranged between the threaded portion and the first bolt.

[0014] In a possible implementation, the mobile component includes:

[0015] A movable groove is installed on the left side of the piston, and a second switch is fixedly connected to the left side of the movable groove;

[0016] A clamping member, installed below the moving groove;

[0017] A push column is arranged on the left side of the second switch, an arc plate is connected to the left side of the push column, and a card slot is arranged on the top of the second switch;

[0018] A cleaning sleeve is installed on the outside of the push column, and the cleaning sleeve is arranged inside the lubricating sleeve.

[0019] In a possible implementation, the clamping member includes:

[0020] A slide groove is arranged below the moving groove, and a limit block is slidably connected inside the slide groove;

[0021] A connecting spring has one end mounted on the bottom of the slide slot and the other end on the right end of the limit block.

[0022] In a possible implementation, the card component includes:

[0023] A clamping column, inserted above the moving component;

[0024] A limit assembly is installed above the clamping column, one end of a connecting rod is inserted inside the limit assembly, the other end of the connecting rod passes through the top of the lubricating sleeve, and the other end of the connecting rod is connected to a pulling block.

[0025] In a possible implementation, the limiting component includes:

[0026] An annular groove, with an annular plate installed at the bottom, and a placement structure formed between the annular plate and the annular groove;

[0027] A support spring is installed in the placement structure, and the support spring is sleeved on the outside of the connecting rod;

[0028] A fixing spring is arranged in the placement structure, one end of the fixing spring is connected to the inner surface of the upper plate body of the annular groove, and the other end is connected to the inner surface of the annular plate.

[0029] In a possible implementation, the oil injection assembly includes:

[0030] An inlet pipe, one end of which is connected to the piston and provided with a one-way valve, and the other end of which passes through the top of the lubricating sleeve and is connected to a liquid injection terminal;

[0031] A protective sleeve, which is arranged outside the injection end;

[0032] An elastic rope, one end of which is connected to one side of the protective sleeve, and the other end of which is connected to the lubricating sleeve;

[0033] The oiling mechanism is inserted into the liquid injection end.

[0034] In a possible implementation, the oiling mechanism includes:

[0035] The injection cylinder has a driving cylinder installed on the top, a servo motor is fixedly connected to the bottom of the inner cavity of the driving cylinder, and a needle is connected to the bottom of the injection cylinder;

[0036] A lead screw, the bottom of which is drivingly connected to the output end of the servo motor;

[0037] A push block is sleeved on the lead screw, a piston column is fixed at the bottom of the push block, and the piston column is drivingly connected to the inside of the injection cylinder;

[0038] The first switch is installed on one side of the driving cylinder.

[0039] The present invention is provided with a piston cavity, a piston rod and an internal thread groove. When the U-shaped part needs to be removed, a tool such as pliers is clamped on the outer side of the arc plate, and then the pull block is pulled, so that the pull block drives the annular plate to move up through the connecting rod, so that the annular plate drives the clamping column to move out of the clamping groove. At this time, the user presses the pliers or other tools to make the arc plate push the push column to move, so that the push column pushes the second switch to move. At this time, the second switch pushes the piston rod and the piston plate to move, so that the lubricating oil inside the piston cavity enters into the liquid cavity through the liquid pipe, and then enters into the connection between the internal thread groove and the threaded part through the liquid hole for lubrication, so that the staff can conveniently disassemble the device, and by providing a liquid injection The end, the inlet tube and the needle, the needle is inserted into the injection end, and the first switch is pressed. At this time, the output end of the servo motor drives the screw to rotate, so that the push block pushes the piston column to move downward, so that the lubricating oil inside the injection cylinder enters into the injection end through the needle, and then enters into the piston cavity through the inlet tube, and at the same time, the pull block is pulled upward, so that the pull block drives the annular plate to move upward, so that the clamping column moves into the annular groove, so that the lubricating oil pushes the piston plate and the second switch as well as the push column and the arc plate to reset and move, press the first switch once, feed a certain amount of lubricating oil into the piston cavity, so that the lubricating oil can be replenished into the piston cavity, so that the first bolt and the second bolt can be reused. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0041] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0042] Figure 1 This is a schematic diagram of a support device for shield tunnel rail construction according to the present invention;

[0043] Figure 2 It is a side view structural schematic diagram of the present invention;

[0044] Figure 3 This is a schematic diagram of the oiling mechanism structure of the present invention;

[0045] Figure 4This is a schematic diagram of the top view of the first bolt structure of the present invention;

[0046] Figure 5 This is a schematic diagram of the structure of the left inner part of the lubricating sleeve of the present invention;

[0047] Figure 6 For the present invention Figure 2 A magnified image of point A;

[0048] Figure 7 For the present invention Figure 3 The enlarged view of point B;

[0049] Figure 8 It is a schematic diagram of the structure of the inner part of the right side of the lubricating sleeve of the present invention.

[0050] In the figure: 1 concrete pile; 2 rail body; 3 switch sleeper; 4 U-shaped part; 5 rail buckle; 6 hoop plate; 7 first bolt; 8 second bolt; 9 internal thread groove; 10 threaded part; 11 lubricating sleeve; 12 piston cavity; 13 piston plate; 14 moving groove; 15 piston rod; 16 push column; 17 arc plate; 18 cleaning sleeve; 19 liquid pipe; 20 liquid cavity; 21 slide groove; 22 connecting spring; 23 limit block; 24 annular groove; 25 connecting rod; 26 supporting spring; 27 clamping column; 28 clamping groove; 29 inlet pipe; 30 injection end; 31 protective sleeve; 32 elastic rope; 33 pull block; 34 injection cylinder; 35 piston column; 36 driving cylinder; 37 servo motor; 38 screw rod; 39 push block; 40 needle head; 41 first switch; 42 second switch; 43 liquid hole; 44 fixing spring. DETAILED DESCRIPTION

[0051] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are 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 creative work are within the scope of protection of the present invention.

[0052] Please refer to Figure 1-Figure 8A support device for shield tunnel rail construction disclosed in the present invention is now described. The present invention consists of six parts, including a concrete pile 1, a rail body 2 is placed on the top of the concrete pile 1, two hoop plates 6 are placed on the top of the rail body 2, a switch sleeper 3 is placed below the rail body 2, and U-shaped members 4 are placed on the outer sides of both ends of the switch sleeper 3. Two through holes are provided on the surface of the hoop plates 6, and one end of the U-shaped member 4 passes through the through holes and extends to the top of the hoop plates 6. A buckle rail 5 is placed between the rail bodies 2 and below the hoop plates 6, and filling blocks are placed on both sides of the rail body 2. Threaded portions 10 are provided on the outer sides of both ends of the U-shaped member 4 above the hoop plates 6, and first bolts 7 are sleeved on the outer sides of the threaded portions 10. The tops of the first bolts 7 are installed with The second bolt 8, the first bolt 7 and the second bolt 8 are all provided with internal thread grooves 9, and the first bolt 7 and the second bolt 8 are threadedly connected to the threaded portion 10 through the internal thread grooves 9. The outer fixed sleeve of the first bolt 7 is provided with a lubricating sleeve 11, and two piston cavities 12 are provided inside the lubricating sleeve 11, and the piston cavities 12 are slidably connected with piston plates 13, and one side of the piston plate 13 is fixedly connected with a piston rod 15, and a movable groove 14 is provided inside the lubricating sleeve 11 and on one side of the piston cavity 12, one end of the piston rod 15 extends to the inside of the movable groove 14 and is fixedly connected with a second switch 42, and one side of the second switch 42 is fixedly connected with a push column 16, and one end of the push column 16 extends to the outside of the lubricating sleeve 11 and is fixedly connected with an arc plate 17.

[0053] In a specific embodiment, a liquid pipe 19 is installed inside the lubricating sleeve 11 and on one side of the piston cavity 12, a liquid cavity 20 is opened inside the first bolt 7 and the second bolt 8 and on the outside of the internal thread groove 9, a plurality of liquid holes 43 are opened inside the first bolt 7 and the second bolt 8 and on the inner side of the liquid cavity 20, one end of the liquid hole 43 extends to the liquid cavity 20, and the other end of the liquid hole 43 extends to the internal thread groove 9, one end of the liquid pipe 19 extends to the liquid cavity 20, and the other end of the liquid pipe 19 extends to the piston cavity 12 and is provided with a one-way valve to control the flow direction of the lubricating oil.

[0054] In a specific embodiment, an annular groove 24 is opened inside the lubricating sleeve 11 and above the movable groove 14, an annular plate is slidably connected inside the annular groove 24, and a clamping column 27 is fixedly connected to the bottom of the annular plate and above the second switch 42, a clamping groove 28 is opened at the top of the second switch 42, the bottom end of the clamping column 27 extends into the inside of the clamping groove 28, a connecting rod 25 is fixedly connected to the top of the annular plate, a supporting spring 26 is slidably connected to the inner cavity of the annular groove 24 and located on the outer side of the connecting rod 25, the top of the connecting rod 25 extends to the top of the lubricating sleeve 11 and is fixedly connected to a pull block 33, and a fixing spring 44 is fixedly connected to the top of the inner cavity of the annular groove 24, and the bottom end of the fixing spring 44 is connected to the top of the annular plate, so as to limit the position of the second switch 42.

[0055] In a specific embodiment, a slide groove 21 is opened inside the lubricating sleeve 11 and below the movable groove 14, a connecting spring 22 is fixedly connected to one side of the inner cavity of the slide groove 21, one end of the connecting spring 22 is fixedly connected to a limiting block 23, the limiting blocks 23 are slidably connected to the inside of the slide groove 21, and the top of the limiting blocks 23 is connected to the bottom of the second switch 42. After the lubricating oil inside the piston cavity 12 is discharged into the connection between the internal thread groove 9 and the threaded portion 10, the position of the second switch 42 can be limited by the pulling force of the connecting spring 22.

[0056] In a specific embodiment, a cleaning sleeve 18 is fixedly connected inside the lubricating sleeve 11 and outside the push post 16. When the push post 16 moves into the movable groove 14, the cleaning sleeve 18 scrapes off the dirt on the outside of the push post 16 to prevent the dirt from entering the movable groove 14.

[0057] In a specific embodiment, an inlet pipe 29 is installed inside the lubricating sleeve 11 and above the piston cavity 12. One end of the inlet pipe 29 extends to the inside of the piston cavity 12 and is provided with a one-way valve, and the other end of the inlet pipe 29 extends to the top of the lubricating sleeve 11 and is fixedly connected with a liquid injection terminal 30, so that lubricating oil can be added to the inside of the piston cavity 12 through the liquid injection terminal 30 and the inlet pipe 29, and the first bolt 7 and the second bolt 8 can be reused.

[0058] In a specific embodiment, a protective sleeve 31 is provided on the outer side of the injection tip 30 , one side of the protective sleeve 31 is connected to an elastic rope 32 , and the other end of the elastic rope 32 is connected to one side of the lubricating sleeve 11 , which can prevent dirt from entering the injection tip 30 .

[0059] In a specific embodiment, the top of the injection cylinder 34 is fixedly connected to a driving cylinder 36, the bottom of the inner cavity of the driving cylinder 36 is fixedly connected to a servo motor 37, the top of the inner cavity of the driving cylinder 36 is rotatably connected to a screw rod 38, the output end of the servo motor 37 is connected to the bottom end of the screw rod 38, the outer side of the screw rod 38 is threadedly connected to a push block 39, the inside of the injection cylinder 34 is slidably connected to a piston column 35, the top of the piston column 35 extends to the inside of the driving cylinder 36 and is fixedly connected to the bottom of the push block 39, a needle 40 is installed at the bottom of the injection cylinder 34, a first switch 41 is installed on one side of the driving cylinder 36, and a second switch 42 is installed on the other side of the driving cylinder 36 to facilitate the replenishment of lubricating oil to the inside of the piston cavity 12, so that the first bolt 7 and the second bolt 8 can be reused.

[0060] In summary, when the present invention is used, the rail body 2 is Figure 1As shown, it is fixed and supported. When it is necessary to remove the U-shaped part 4, clamp a tool such as pliers on the outside of the arc plate 17, and then pull the pull block 33, so that the pull block 33 drives the annular plate to move up through the connecting rod 25, so that the annular plate drives the clamping column 27 to move out of the clamping groove 28. At this time, the user presses a tool such as pliers to make the arc plate 17 push the push column 16 to move, so that the push column 16 pushes the second switch 42 to move. At this time, the second switch 42 pushes the piston rod 15 and the piston plate 13 to move, so that the lubricating oil inside the piston cavity 12 enters the liquid cavity 20 through the liquid pipe 19, and then enters the connection between the internal thread groove 9 and the threaded part 10 through the liquid hole 43 for lubrication. At this time, the user rotates the lubricating sleeve 11 through the tool, and at this time the lubricating sleeve 11 drives the first bolt 7 and the second bolt 8 to rotate, and the first bolt 7 and the second bolt 8 are removed from the end of the U-shaped part 4. The outer side of the U-shaped part 4 is removed, thereby removing the U-shaped part 4. If it is necessary to fix the U-shaped part 4, before using the first bolt 7 and the second bolt 8, it is necessary to add lubricating oil to the inside of the piston chamber 12, and then pull the pull block 33, so that the pull block 33 drives the annular plate to move up through the connecting rod 25, so that the annular plate drives the clamping column 27 to move out of the inside of the clamping groove 28, then pull the arc plate 17 and the push column 16 to reset the second switch 42, and then release the pull block 33. At this time, the support spring 26 and the fixing spring 44 push the annular plate to move downward, so that the bottom end of the clamping column 27 is inserted into the inside of the clamping groove 28, and the outer side of the second switch 42 is limited. At this time, the user clamps a tool such as pliers on the outer side of the arc plate 17, applies force, and screws the first bolt 7 and the second bolt 8 on the outer side of the end of the U-shaped part 4. Lubricating oil will not be input into the connection between the internal thread groove 9 and the threaded part 10.At the same time, when it is necessary to add lubricating liquid to the inside of the piston chamber 12, the protective cover 31 is removed from the outside of the injection end 30, the needle 40 is inserted into the bottle storing the lubricating liquid, and then the second switch 42 is pressed. At this time, the output end of the servo motor 37 drives the screw rod 38 to rotate, so that the push block 39 drives the piston column 35 to move upward, and the lubricating oil is sucked into the injection cylinder 34 through the needle 40. Then the needle 40 is removed from the lubricating oil bottle, and then the needle 40 is inserted into the injection end 30, and the first switch 41 is pressed. At this time, the output end of the servo motor 37 drives the screw rod 38 to rotate, so that the push block 39 pushes the piston column 35 downward, so that the lubricating oil inside the injection cylinder 34 enters through the needle 40. To the inside of the injection end 30, and then enters the piston chamber 12 through the inlet pipe 29, and at the same time pulls the pull block 33 upward, so that the pull block 33 drives the annular plate to move upward, so that the clamping column 27 moves to the inside of the annular groove 24, so that the lubricating oil pushes the piston plate 13 and the second switch 42 as well as the push column 16 and the arc plate 17 to reset and move, press the first switch 41 once, feed a certain amount of lubricating oil into the piston chamber 12, and then stop feeding, and then release the pull block 33. At this time, the support spring 26 and the fixed spring 44 push the annular plate to move downward, so that the clamping column 27 is located in the clamping groove 28, and then the needle 40 is taken out from the inside of the injection end 30, and the protective cover 31 is set on the outside of the injection end 30.

[0061] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims

1. A support device for shield tunnel rail construction, characterized in that: A concrete pile (1) is installed above a rail body (2), a hoop plate (6) is arranged above the rail body (2), a rail buckle (5) is arranged below the hoop plate (6), a switch sleeper (3) is arranged below the rail body (2), U-shaped pieces (4) are arranged on both sides of the switch sleeper (3), and support devices for shield tunnel rail construction are arranged on both sides of the upper end of the U-shaped piece (4), comprising: A threaded portion (10) is clamped on the left and right sides of the U-shaped member (4), the left side of the threaded portion (10) is threadedly connected with a first bolt (7) and a second bolt (8), and the first bolt (7) and the second bolt (8) are both provided with an internal thread groove (9); A lubricating sleeve (11) is sleeved on the outside of the first bolt (7), a piston is installed inside the lubricating sleeve (11), a moving assembly is arranged on the left side of the piston, a clamp is inserted above the piston, one end of the moving assembly is arranged on the outside of the lubricating sleeve (11), the moving assembly passes through the left side of the lubricating sleeve (11), and the clamp passes through the upper end of the lubricating sleeve (11); An oil injection assembly is arranged on the right side of the clamp, and the lower end of the oil injection assembly passes through the lubricating sleeve (11); The lubricating sleeve (11) and the first bolt (7) form a hollow structure, the piston is arranged in the hollow structure, and the oil injection assembly is connected to one end of the piston; The mobile assembly comprises: A movable groove (14) is installed on the left side of the piston, and a second switch (42) is fixedly connected to the left side of the movable groove (14); A clamping member installed below the movable groove (14); A push column (16) is arranged on the left side of the second switch (42), the left side of the push column (16) is connected to an arc plate (17), and a slot (28) is arranged on the top of the second switch (42); A cleaning sleeve (18) is installed on the outside of the push column (16), and the cleaning sleeve (18) is arranged inside the lubricating sleeve (11); The clamping member comprises: A slide groove (21) is arranged below the movable groove (14), and a limit block (23) is slidably connected inside the slide groove (21); A connecting spring (22), one end of which is mounted on the bottom of the slide groove (21) and the other end is on the right end of the limit block (23); The card comprises: A clamping column (27) is inserted above the moving component; A limit assembly is installed above the clamping column (27), one end of a connecting rod (25) is inserted inside the limit assembly, the other end of the connecting rod (25) passes through the top of the lubricating sleeve (11), and the other end of the connecting rod (25) is connected to a pulling block (33); The limiting component comprises: An annular groove (24), with an annular plate installed at the bottom, and a placement structure formed between the annular plate and the annular groove (24); A support spring (26) is installed in the placement structure, and the support spring is sleeved on the outside of the connecting rod (25); A fixing spring (44) is arranged in the placement structure, one end of the fixing spring (44) is connected to the inner surface of the upper plate body of the annular groove (24), and the other end is connected to the inner surface of the annular plate.

2. The support device for shield tunnel rail construction according to claim 1, characterized in that: The piston comprises: A piston chamber (12) is installed on the left side of the first bolt (7), and the left side of the piston chamber (12) is drivingly connected to a piston plate (13); A piston rod (15) is mounted on the left side of the piston plate (13); A liquid pipe (19) has one end mounted on the right end of the piston chamber (12) and the other end inserted into the liquid chamber (20). The liquid chamber (20) is provided with a plurality of liquid holes (43). The liquid chamber (20) is arranged between the threaded portion (10) and the first bolt (7).

3. The support device for shield tunnel rail construction according to claim 1, characterized in that: The oil injection assembly comprises: An inlet pipe (29), one end of which is connected to the piston and provided with a one-way valve, and the other end of which passes through the top of the lubricating sleeve (11) and is connected to a liquid injection terminal (30); A protective sleeve (31) is sleeved on the outside of the liquid injection end (30); an elastic rope (32), one end of which is connected to one side of the protective sleeve (31) and the other end of which is connected to the lubricating sleeve (11); The oiling mechanism is inserted into the liquid injection end head (30).

4. The support device for shield tunnel rail construction as claimed in claim 3, characterized in that: The oiling mechanism comprises: The injection cylinder (34) has a driving cylinder (36) installed on the top, the bottom of the inner cavity of the driving cylinder (36) is fixedly connected to a servo motor (37), and the bottom of the injection cylinder (34) is connected to a needle (40); A lead screw (38), the bottom of which is drivingly connected to the output end of the servo motor (37); A push block (39) is sleeved on the lead screw (38), a piston column (35) is fixed at the bottom of the push block (39), and the piston column (35) is transmission-connected to the inside of the injection cylinder (34); The first switch (41) is installed on one side of the driving cylinder (36).

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