Cylinder sleeve extractor

Abstract

The utility model relates to the technical field of cylinder sleeve take-out devices, in particular to a cylinder sleeve take-out device. The cylinder sleeve taking-out device comprises a threaded sleeve, a clamping claw is installed on the threaded sleeve, a threaded rod is inserted into the threaded sleeve, an installation column head is installed on the threaded rod, a middle connecting rod is installed on the installation column head, and the middle connecting rod is rotationally connected with the clamping claw. According to the cylinder sleeve taking-out device, when the screw rod is screwed out upwards along the threaded sleeve, the middle connecting rod on the mounting column head drives the clamping claws to deflect upwards, so that the clamping claws are opened, and in the state, a clamping structure formed by the clamping claws can clamp the bottom of a cylinder sleeve; the cylinder sleeve extractor can be suitable for cylinder bodies with different diameters through flexible adjustment of the clamping claws, the application range of the cylinder sleeve extractor is widened, the hydraulic cylinder is started to push the jacking plate upwards, the jacking plate pushes the threaded sleeve to slide upwards, the clamping claws drive the cylinder sleeve to slide towards the outside of the generator cylinder body, operation is easy and convenient, and the practicability is high. And manual drawing is not needed, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of cylinder liner extractors, in particular to a cylinder liner extractor. Background Art

[0002] When the generator cylinder liner exceeds the maximum repair limit of the cylinder diameter, or when a serious cylinder liner failure occurs in a single cylinder of a multi-cylinder generator for a vehicle, the old cylinder liner must be pulled out to replace it with a new one. However, the pull plate diameter used in the existing cylinder liner extractor is fixed, so pull plates of different diameters need to be used when different cylinder bodies need to be disassembled, resulting in low efficiency of the device, further increasing the time required for the staff to pull the pull plate, and currently it is pulled out manually, which is time-consuming and labor-intensive.

[0003] Therefore, it is necessary to provide a new cylinder sleeve extractor to solve the above technical problems. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a cylinder sleeve extractor.

[0005] The cylinder sleeve extractor provided by the utility model comprises a threaded sleeve, a plurality of annularly distributed and rotatably connected clamping claws are installed at the bottom of the threaded sleeve, a threaded screw is inserted in the threaded sleeve, both ends of the screw extend out of the threaded sleeve, and a mounting column head is fixedly installed at the bottom of the screw, a plurality of annularly distributed and rotatably connected middle link rods are installed on the mounting column head, and the middle link rods are rotatably connected to the corresponding lower plate wall of the clamping claws;

[0006] The cylinder sleeve extractor also includes a support frame, a hydraulic cylinder is fixedly installed on the support frame, and a lifting plate is fixedly installed on the output end of the hydraulic cylinder, an insertion A groove is opened on the support frame, and an insertion B groove is opened on the lifting plate, and the insertion A groove and the insertion B groove are arranged opposite to each other.

[0007] Preferably, an abutment disk is fixedly sleeved at the upper tube mouth of the threaded sleeve, and the disk diameter of the abutment disk is larger than the groove diameter of the inserted B groove.

[0008] Preferably, a rocker arm assembly is installed on the upper rod head of the screw rod, and the rocker arm assembly includes a cross bar, the cross bar is fixedly connected to the upper rod head of the screw rod, and the cross bar is vertically arranged to the screw rod, a sliding sleeve is sleeved on the cross bar, and a threaded fastening screw is inserted on the sleeve and used to fasten the cross bar.

[0009] Preferably, a plurality of support columns are fixedly mounted on the bottom of the support frame.

[0010] Preferably, a vertically arranged limiting rod is fixedly mounted on the support frame, and the limiting rod passes through a through hole formed in the jacking plate and is slidably connected to the through hole.

[0011] Preferably, a horizontal abutment portion is provided at the claw head of the clamping claw.

[0012] Compared with the related art, the cylinder sleeve extractor provided by the utility model has the following beneficial effects:

[0013] When the screw is screwed out upward along the threaded sleeve, the middle connecting rod on the mounting column head drives the clamping claw to deflect upward, so that the clamping claw opens. In this state, the clamping structure formed by the clamping claw can clamp the bottom of the cylinder sleeve, and the flexible adjustment of the clamping claw makes the cylinder sleeve extractor suitable for cylinders with different diameters, thereby increasing the application range of the cylinder sleeve extractor. When the hydraulic cylinder is opened to push up the lifting plate, since the abutment plate is located above the lifting plate, the lifting plate pushes the threaded sleeve to slide upward, so the clamping claw drives the cylinder sleeve to slide outward of the generator cylinder body. The operation is simple and convenient, and no manual pulling is required, which saves time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A structural schematic diagram of a preferred embodiment of the cylinder sleeve extractor provided by the utility model;

[0015] Figure 2 for Figure 1 The structural schematic diagram of the threaded sleeve and the screw shown;

[0016] Figure 3 for Figure 1 Schematic diagram of the connection structure between the support frame and the lifting plate.

[0017] Numbers in the figure: 1. threaded sleeve; 11. abutment plate; 2. clamping claw; 21. abutment part; 3. screw; 31. mounting column head; 4. center link; 5. support frame; 5a. insert A slot; 51. support column; 52. hydraulic cylinder; 53. limit rod; 6. lifting plate; 6a. insert B slot; 7. rocker arm assembly; 71. cross bar; 72. sleeve; 73. fastening screw. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0019] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0020] See also Figures 1 to 3An embodiment of the utility model provides a cylinder liner extractor, which includes a threaded sleeve 1, a screw rod 3 and a support frame 5.

[0021] In the embodiments of the present invention, please refer to Figures 1 to 3 The bottom of the threaded sleeve 1 is equipped with a plurality of annularly distributed and rotatably connected clamping claws 2, and a threaded screw 3 is inserted in the threaded sleeve 1. Both ends of the screw 3 extend out of the threaded sleeve 1, and a mounting column head 31 is fixedly installed at the bottom of the screw 3. A plurality of annularly distributed and rotatably connected middle connecting rods 4 are installed on the mounting column head 31, and the middle connecting rod 4 is rotatably connected to the lower plate wall of the corresponding clamping claw 2.

[0022] It should be noted that: when the screw 3 is screwed downward along the threaded sleeve 1, the middle link rod 4 on the mounting column head 31 drives the clamping claw 2 to deflect downward, so that the clamping claw 2 is closed and contracted. In this state, the clamping structure formed by the clamping claw 2 is easy to be inserted into the cylinder sleeve;

[0023] When the screw rod 3 is screwed out upward along the threaded sleeve 1, the middle connecting rod 4 on the mounting column head 31 drives the clamping claw 2 to deflect upward, so that the clamping claw 2 is opened. In this state, the clamping structure formed by the clamping claw 2 can clamp the bottom of the cylinder sleeve, and the flexible adjustment of the clamping claw 2 makes the cylinder sleeve extractor suitable for cylinder bodies of different diameters, thereby increasing the application range of the cylinder sleeve extractor.

[0024] Furthermore, a horizontal abutment portion 21 is provided at the claw head of the clamping claw 2, so that the abutment portion 21 of the clamping claw 2 can abut against the bottom of the cylinder sleeve after the position of the clamping claw 2 is adjusted.

[0025] Among them, the upper rod head of the screw rod 3 is installed with a rocker arm assembly 7, and the rocker arm assembly 7 includes a cross bar 71, the cross bar 71 is fixedly connected to the upper rod head of the screw rod 3, and the cross bar 71 is vertically arranged to the screw rod 3, and the cross bar 71 is sleeved with a sliding connection sleeve 72, and the sleeve 72 is inserted with a threaded connection and a fastening screw 73 for fastening the cross bar 71. After loosening the fastening screw 73, the length of the telescopic rod structure composed of the cross bar 71 and the sleeve 72 can be flexibly adjusted, so that the staff can adjust the rotation arm length of the rocker arm assembly 7 according to needs, and then tighten the fastening screw 73, thereby greatly reducing the staff's effort when adjusting the clamping claw 2.

[0026] In the embodiments of the present invention, please refer to Figures 1 to 3The cylinder sleeve extractor also includes a support frame 5, on which a hydraulic cylinder 52 is fixedly installed, and a lifting plate 6 is fixedly installed at the output end of the hydraulic cylinder 52, and an insertion A groove 5a is provided on the support frame 5, and an insertion B groove 6a is provided on the lifting plate 6, and the insertion A groove 5a and the insertion B groove 6a are arranged opposite to each other, and an abutment disk 11 is fixedly sleeved at the upper barrel mouth of the threaded sleeve 1, and the disk diameter of the abutment disk 11 is larger than the groove diameter of the insertion B groove 6a, and a plurality of support columns 51 are fixedly installed at the bottom of the support frame 5.

[0027] After the jacking plate 6 is lifted up, the support column 51 at the bottom of the support frame 5 is inserted into the screw hole of the generator to keep it stable, and the threaded sleeve 1 is slid into the insertion groove A 5a opened on the support frame 5 and the insertion groove B 6a opened on the jacking plate 6, keeping the abutment disk 11 located above the jacking plate 6, and then using the screw 3 to drive the clamping claw 2 to retract, after completion, the hydraulic cylinder 52 is opened for return to make the jacking plate 6 slide down, so that the threaded sleeve 1 and the clamping claw 2 at the bottom are inserted into the generator cylinder sleeve, when the clamping claw 2 slides down to the bottom of the cylinder sleeve, the screw 3 is used to drive the clamping claw 2 to open until the abutment portion 21 of the clamping claw 2 is located at the lower end surface of the cylinder sleeve, and the hydraulic cylinder 52 is opened to push the jacking plate 6 up. Since the abutment disk 11 is located above the jacking plate 6, the jacking plate 6 pushes the threaded sleeve 1 to slide up, so the clamping claw 2 drives the cylinder sleeve to slide out of the generator cylinder body, and the operation is simple and convenient, and no manual pulling is required, which saves time and effort.

[0028] In this embodiment, the threaded sleeve 1 and the support frame 5 are assembled flexibly, and are convenient to install and disassemble, and easy for staff to maintain and carry.

[0029] Among them, a vertically arranged limit rod 53 is fixedly installed on the support frame 5, and the limit rod 53 passes through the through hole opened in the jacking plate 6 and is slidably connected with the through hole. The set limit rod 53 improves the stability when the hydraulic cylinder 52 pushes the jacking plate 6 to rise or fall.

[0030] The working principle of the cylinder sleeve extractor provided by the utility model is as follows:

[0031] Insert the support column 51 at the bottom of the support frame 5 into the screw hole of the generator to keep it stable, slide the threaded sleeve 1 into the insertion groove A 5a opened on the support frame 5 and the insertion groove B 6a opened on the jacking plate 6, keep the abutment plate 11 located above the jacking plate 6, and then use the screw rod 3 to drive the clamping claw 2 to retract. Specifically, when the screw rod 3 is screwed downward along the threaded sleeve 1, the middle link rod 4 on the installation column head 31 drives the clamping claw 2 to deflect downward, so that the clamping claw 2 is closed and contracted. In this state, the clamping structure formed by the clamping claw 2 is easy to be inserted into the cylinder sleeve. After completion, the hydraulic cylinder 52 is opened for return to make the jacking plate 6 slide down, so that the threaded sleeve 1 and the clamping claws 2 at the bottom are inserted into the generator cylinder sleeve. When the clamping claws 2 slide down to the bottom of the cylinder sleeve, the screw rod 3 is used to drive the clamping claws 2 to open. Specifically, when the screw rod 3 is screwed out upward along the threaded sleeve 1, the middle link rod 4 on the mounting column head 31 drives the clamping claws 2 to deflect upward, so that the clamping claws 2 are opened until the abutment portion 21 of the clamping claws 2 is located at the lower end surface of the cylinder sleeve. At this time, the hydraulic cylinder 52 is turned on to push up the lifting plate 6. Since the abutment plate 11 is located above the lifting plate 6, the lifting plate 6 pushes the threaded sleeve 1 to slide upward, so that the clamping claws 2 drive the cylinder sleeve to slide toward the generator cylinder body. The operation is simple and convenient, and no manual pulling is required, which saves time and effort.

[0032] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0033] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A cylinder liner extractor, characterized in that: The invention comprises a threaded sleeve (1), the bottom of the threaded sleeve (1) is provided with a plurality of annularly distributed and rotatably connected clamping claws (2), a threaded screw (3) is inserted into the threaded sleeve (1), both ends of the screw (3) extend out of the threaded sleeve (1), a mounting column head (31) is fixedly mounted on the bottom of the screw (3), a plurality of annularly distributed and rotatably connected middle link rods (4) are mounted on the mounting column head (31), and the middle link rods (4) are rotatably connected to the lower plate walls of the corresponding clamping claws (2); The cylinder sleeve extractor further comprises a support frame (5), a hydraulic cylinder (52) being fixedly mounted on the support frame (5), and a lifting plate (6) being fixedly mounted on the output end of the hydraulic cylinder (52), an insertion groove A (5a) being provided on the support frame (5), and an insertion groove B (6a) being provided on the lifting plate (6), and the insertion groove A (5a) and the insertion groove B (6a) being arranged opposite to each other.

2. The cylinder liner extractor according to claim 1, characterized in that: An abutment disc (11) is fixedly sleeved on the upper tube opening of the threaded sleeve (1), and the disc diameter of the abutment disc (11) is larger than the groove diameter of the inserted B groove (6a).

3. The cylinder liner extractor according to claim 1, characterized in that: The upper rod head of the screw rod (3) is provided with a rocker arm assembly (7), and the rocker arm assembly (7) comprises a cross bar (71), the cross bar (71) is fixedly connected to the upper rod head of the screw rod (3), and the cross bar (71) and the screw rod (3) are arranged vertically, the cross bar (71) is sleeved with a sleeve (72) in sliding connection, and the sleeve (72) is inserted with a fastening screw (73) threadedly connected and used for fastening the cross bar (71).

4. The cylinder liner extractor according to claim 1, characterized in that: A plurality of support columns (51) are fixedly mounted on the bottom of the support frame (5).

5. The cylinder liner extractor according to claim 4, characterized in that: A vertically arranged limiting rod (53) is fixedly mounted on the support frame (5), and the limiting rod (53) passes through a through hole formed in the lifting plate (6) and is slidably connected to the through hole.

6. The cylinder liner extractor according to claim 1, characterized in that: A horizontal abutment portion (21) is provided at the claw head of the clamping claw (2).

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