Combined hydraulic cylinder

Abstract

The utility model discloses a combined hydraulic cylinder which comprises a cylinder body and a front wall plate detachably connected with the cylinder body, the cylinder body is formed by detachably connecting a plurality of hollow cylinder body modules in sequence, and the interiors of the cylinder body modules are communicated with one another. The cylinder body module is provided with a first through opening, a second through opening, a third through opening, a fourth through opening and fifth through openings, the second through opening, the third through opening, the fourth through opening and the fifth through openings are matched with the first through opening and detachably connected with the first through opening, and the front wall plate is provided with sixth through openings which are matched with the fifth through openings in number, position, size and shape in a one-to-one mode and detachably connected with the matched fifth through openings. The hydraulic cylinder has the advantages that all cylinders can be forged in a split mode and then assembled into the hydraulic cylinder, so that the machining difficulty is lowered, and the situation that if one cylinder is scrapped, other cylinders are scrapped is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of spare parts processing and production, and particularly relates to a combined hydraulic cylinder. Background Art

[0002] The hydraulic cylinder adopts integral forging, integral heat treatment and integral machining. When performing integral forging, large forging equipment is required and it is not easy to be forged through, and the mechanical properties are not obvious; during integral heat treatment, due to the large wall thickness, the hardenability is poor and the mechanical properties are uneven; during integral machining, a large machining center is required, the processing cost is high, and it is necessary to ensure that all cylinders are qualified at one time. If one cylinder is scrapped, all cylinders will be scrapped, and the processing difficulty is large and the processing cost is high.

[0003] Therefore, it is necessary to propose a combined hydraulic cylinder, which can realize the separate forging of all cylinders and then assemble them into a hydraulic cylinder finally, thereby reducing the processing difficulty and avoiding the situation that if one cylinder is scrapped, the other cylinders will also be scrapped. Content of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and propose a combined hydraulic cylinder, which can realize the separate forging of all cylinders and then assemble them into a hydraulic cylinder finally, thereby reducing the processing difficulty and avoiding the situation that if one cylinder is scrapped, the other cylinders will also be scrapped.

[0005] The purpose of the utility model is realized by the following technical solutions: a combined hydraulic cylinder, including a cylinder body and a front wall plate detachably connected to the cylinder body. The cylinder body is composed of a plurality of internally hollow cylinder body modules detachably connected in sequence. The interiors of the plurality of cylinder body modules are all interconnected. The cylinder body module is provided with a first through port, a second through port that is matched with and detachably connected to the first through port, a third through port, a fourth through port and a fifth through port. The front wall plate is provided with a sixth through port that is in one-to-one matching correspondence with the fifth through port in terms of quantity, position, size and shape and is detachably connected to the matching fifth through port.

[0006] The plurality of cylinder body modules are detachably connected by a first sealing ring.

[0007] Two adjacent cylinder body modules are provided with a first notch close to each other. The two first notches form a tensioning opening with one side open, and a tensioning block is detachably arranged on the tensioning opening.

[0008] A bolt groove is provided on the notch, and the tensioning block is fixed on the bolt groove by a first bolt.

[0009] The front wall plate and the cylinder body are connected to the cylinder body by a second bolt.

[0010] A positioning pin is arranged between the front wall plate and the cylinder body, and thread anaerobic glue is arranged at both ends of the positioning pin.

[0011] On one side adjacent to each other, the sixth through - port and the fifth through - port are both provided with a second notch, and the two second notches form an annular groove. A sealing sleeve is arranged at the adjacent position of the sixth through - port and the fifth through - port, and a protruding portion which matches the annular groove in position, size and shape and is used for sealing the annular groove is arranged on the sealing sleeve.

[0012] An annular step is provided on the side of the sixth through - port far from the fifth through - port.

[0013] A second sealing ring is sleeved on the outer side of the connection between the sixth through - port and the fifth through - port.

[0014] The beneficial effects of the present utility model are as follows: Through multiple cylinder block modules and the front wall plate, the detachable connection of the cylinder blocks is realized. Therefore, the cylinder can be forged separately and then assembled into a cylinder finally, which reduces the processing difficulty and also avoids the situation that if one cylinder is scrapped, all other cylinders are scrapped. Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the present utility model;

[0016] Figure 2 is Figure 1 The sectional view at C - C in

[0017] Figure 3 is Figure 2 The enlarged view at D in

[0018] Figure 4 is Figure 1 The sectional view at A - A in

[0019] Figure 5 is Figure 1 The sectional view at B - B in

[0020] Figure 6 It is a schematic diagram of the tension port connection;

[0021] In the figure, 1. cylinder block; 2. front wall plate; 3. cylinder block module; 4. first through - port; 5. second through - port; 6. third through - port; 7. fourth through - port; 8. fifth through - port; 9. sixth through - port; 10. first sealing ring; 11. first notch; 12. tension port; 13. tension block; 14. first bolt; 15. second bolt; 16. positioning pin; 17. thread anaerobic adhesive; 18. second notch; 19. annular groove; 20. sealing sleeve; 21. protruding portion; 22. annular step; 23. second sealing ring. Detailed Description of the Embodiment

[0022] The technical solution of the present utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0023] It should be noted that in the following solutions, the orientation concepts of "left", "right", "up", "down", "front", "rear", "inner", and "outer" are all relative directions, and will not be listed one by one here.

[0024] A combined hydraulic cylinder, referring to Figures 1-6 , includes a cylinder block 1 and a front wall plate 2 detachably arranged on the front side of the cylinder block 1. The cylinder block 1 is composed of five internally hollow cylinder modules 3 detachably connected in sequence. A first sealing ring 10 is used to achieve detachable connection between two adjacent cylinder modules 3. Since this method is a very common technical means in the art, no further description will be made here. The interiors of the cylinder modules 3 are interconnected.

[0025] On one side where two connected cylinder modules 3 are close to each other, a first notch 11 is provided. Two first notches 11 form a tensioning opening 12. A tensioning groove is provided on each first notch 11. The tensioning block 13 matches the tensioning opening 12 in terms of size, shape, and structure. Two first bolts 14 are passed through the tensioning block 13, and the first bolts 14 are installed at the tensioning opening 12, realizing the installation of the tensioning block 13 at the tensioning opening 12, thereby firmly pulling the connected cylinder modules 3 and preventing them from separating.

[0026] On the upper side of the cylinder module 3, a fourth through port 7 is provided, on the left side, a first through port 4 is provided, on the right side, a second through port 5 is provided, on the rear side, a third through port 6 is provided, and on the front side, a fifth through port 8 is provided. The first through port 4 and the second through port 5 match each other. When the cylinder modules 3 are connected, the first through port 4 and the second through port 5 are connected.

[0027] On the front wall plate 2, a sixth through port 9 is provided that matches the fifth through port 8 in terms of quantity, position, size, and shape one by one. The sixth through port 9 is in communication with the fifth through port 8. A plurality of second bolts 15 are detachably arranged on the front wall plate 2, and the second bolts 15 are installed on the cylinder block 1, thereby connecting the front wall plate 2 and the cylinder block 1. A plurality of positioning pins 16 are provided between the front wall plate 2 and the cylinder block 1, and thread anaerobic glue 17 is provided at both ends of the positioning pins 16 to make the front wall plate 2 and the cylinder block 1 more firmly and closely connected.

[0028] The fifth opening 8 and the sixth opening 9 are both provided with a second notch 18 on one side close to each other. The two second notches 18 form an annular groove 19. The sixth opening 9 is provided with an annular step 22 at one end away from the fifth opening 8 for facilitating the installation of the liquid flow tube. A sealing sleeve 20 matching its structure and size is provided inside the sixth opening 9. The outer wall of the sealing sleeve 20 is provided with a protrusion 21 matching the shape and size of the annular groove 19 for sealing the annular groove 19. The outer wall of the connection between the fifth opening 8 and the sixth opening 9 is sleeved with a second sealing ring 23 for tightly connecting the two.

[0029] The above is only a preferred embodiment of the utility model. It should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above description or the technology or knowledge in the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A combined hydraulic cylinder, characterized in that, It includes a cylinder block and a front wall panel detachably connected to the cylinder block. The cylinder block is formed by sequentially and detachably connecting a plurality of cylinder block modules with hollow interiors. The interiors of the plurality of cylinder block modules are all interconnected. The cylinder block module is provided with a first through port, a second through port that matches and is detachably connected to the first through port, a third through port, a fourth through port, and a fifth through port. The front wall panel is provided with a sixth through port that matches the fifth through port in terms of quantity, position, size, and shape and is detachably connected to the matching fifth through port.

2. The combined hydraulic cylinder according to claim 1, characterized in that: The plurality of cylinder block modules are detachably connected through a first sealing ring.

3. The combined hydraulic cylinder according to claim 1, characterized in that: Two adjacent cylinder block modules are provided with first notches facing each other. The two first notches form a tensioning opening with one side open, and a tensioning block is detachably arranged on the tensioning opening.

4. The combined hydraulic cylinder according to claim 3, characterized in that: A bolt groove is provided on the notch, and the tensioning block is fixed to the bolt groove through a first bolt.

5. A combined hydraulic cylinder according to claim 1, characterized in that: The front wall panel and the cylinder block are connected to the cylinder block through a second bolt.

6. The combined hydraulic cylinder according to claim 1, characterized in that: A positioning pin is arranged between the front wall panel and the cylinder block, and thread anaerobic glue is arranged at both ends of the positioning pin.

7. The combined hydraulic cylinder according to claim 1, characterized in that: Second notches are provided on the adjacent sides of the sixth through port and the fifth through port. The two second notches form an annular groove. A sealing sleeve is arranged at the adjacent position of the sixth through port and the fifth through port. The sealing sleeve is provided with a protruding portion that matches the annular groove in terms of position, size, and shape and is used to seal the annular groove.

8. A combined hydraulic cylinder according to claim 1, characterized in that: An annular step is provided on the side of the sixth through port away from the fifth through port.

9. The combined hydraulic cylinder according to claim 1, characterized in that: A second sealing ring is sleeved on the outside of the connection between the sixth through port and the fifth through port.

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