A high precision cylinder head

Abstract

The present invention discloses a novel high-precision oil cylinder head, comprising a cylinder head, a hole wall at the upper end of the cylinder head is provided with a connecting thread, a connecting round cover is connected to the upper end of the cylinder head, and a first earring part and a second earring part are connected to the upper end of the connecting round cover, the first earring part is fixed to the connecting round cover by a first fixing bolt, the second earring part is fixed to the connecting round cover by a second fixing bolt, and an annular engaging groove is provided on the inner wall of the cylinder head near the hole at the lower end. The novel high-precision oil cylinder head described in the present invention can realize different forms of connection, so that the oil cylinder head does not need to be replaced to connect different connection devices, thereby ensuring the damage in the process of replacing the oil cylinder head, and can realize the connection between the earring part and the cylinder head, and is connected to the cylinder head by threads, so that the connecting round cover and the earring part can be replaced conveniently, and the threaded connection is simple to disassemble and assemble, saving the time of disassembly and assembly.

Description

Technical Field

[0001] The invention relates to the field of oil cylinders, and in particular to a high-precision oil cylinder head. Background Art

[0002] The hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). It has a simple structure and reliable operation. When it is used to achieve reciprocating motion, the reduction device can be eliminated, and there is no transmission gap, and the movement is smooth. Therefore, it is widely used in the hydraulic systems of various machines. The output force of the hydraulic cylinder is proportional to the effective area of ​​the piston and the pressure difference on both sides. The hydraulic cylinder is basically composed of a cylinder barrel and a cylinder head, a piston and a piston rod, a sealing device, a buffer device and an exhaust device. The buffer device and the exhaust device depend on the specific application occasion, and other devices are indispensable; during the use and installation of the hydraulic cylinder, the cylinder head earring is simple in structure and cannot be changed, which makes it difficult to connect the cylinder head earring part with the external connection device. It is usually necessary to replace the cylinder head and the earring part used in conjunction. The cylinder head is worn during the disassembly and assembly process, and the disassembly and assembly time cost increases, resulting in an increase in labor costs. Summary of the invention

[0003] The main purpose of the present invention is to provide a high-precision cylinder head, which can effectively solve the problems in the background technology.

[0004] To achieve the above object, the technical solution adopted by the present invention is:

[0005] A high-precision oil cylinder head comprises a cylinder head, a hole wall of the upper end of the cylinder head is provided with a connecting thread, the upper end of the cylinder head is connected to a connecting round cover, and the upper end of the connecting round cover is connected to a first earring part and a second earring part, the first earring part is fixed to the connecting round cover by a first fixing bolt, and the second earring part is fixed to the connecting round cover by a second fixing bolt, an annular clamping groove is provided on the inner wall of the cylinder head near the hole at the lower end, and a sealing rubber ring is clamped inside the annular clamping groove.

[0006] Preferably, the connecting round cover is composed of a cover body, a connecting cylinder, a fixing screw hole, a first semicircular clamping block, a second semicircular clamping block, a first rotating opening and a second rotating opening, the lower end of the cover body is fixedly connected to the connecting cylinder, and the side wall of the connecting cylinder is provided with a thread, the lower end of the connecting cylinder is inserted into the hole opened at the upper end of the cylinder head, and the connecting cylinder is movably connected by matching the connecting thread set by the cylinder head through the thread, and the upper end of the cover body is provided with a first semicircular clamping block and a second semicircular clamping block, and the first semicircular clamping block and the second semicircular clamping block are symmetrically arranged about the central axis of the cover body, the second semicircular clamping block is provided with a first rotating opening and a second rotating opening on a side opposite to the first semicircular clamping block, and the first rotating opening and the second rotating opening are symmetrically arranged about the central axis of the second semicircular clamping block, the first semicircular clamping block and the second semicircular clamping block have the same structure, a fixing screw hole is provided between the first semicircular clamping block and the second semicircular clamping block at the upper end of the cover body, and the fixing screw hole provided at the upper end of the cover body is symmetrically arranged about the central axis of the cover body.

[0007] Preferably, the first earring part is composed of a first earring body, a first earring hole, a first screw hole, a first rotating shaft and a second rotating shaft, a first earring hole is opened on an upper portion of one side of the first earring body, and a hole wall of the first earring hole is provided with a thread, a first screw hole is opened on a lower portion of the other side of the first earring body, and a first fixing bolt is inserted into the first screw hole, a first rotating shaft is arranged on a lower portion of a front end of the first earring body, a second rotating shaft is arranged on a lower portion of a rear end of the first earring body, and the second rotating shaft and the first rotating shaft are symmetrically arranged about the central axis of the first earring body.

[0008] Preferably, the second earring part is composed of a second earring body, a second earring hole, a second screw hole, a third rotating axis and a fourth rotating axis, a second earring hole is opened on an upper portion of one side of the second earring body, and the hole wall of the second earring hole is provided with a thread, a second screw hole is opened on a lower portion of the other side of the second earring body, and a second fixing bolt is inserted into the second screw hole, a third rotating axis is arranged on a lower portion of the front end of the second earring body, a fourth rotating axis is arranged on a lower portion of the rear end of the second earring body, and the fourth rotating axis and the third rotating axis are symmetrically arranged about the central axis of the second earring body.

[0009] Preferably, the first rotating shaft and the second rotating shaft arranged at the lower part of the front and rear ends of the first earring body are engaged with the inside of the first rotating opening opened by the first semicircular block and the second semicircular block, and the first rotating shaft and the second rotating shaft are movably connected with the first rotating opening opened by the first semicircular block and the second semicircular block, and the first screw hole opened by the first earring body is aligned with the fixing screw hole opened by the cover body.

[0010] Preferably, the third rotating shaft and the fourth rotating shaft arranged at the lower part of the front and rear ends of the second earring body are engaged in the interior of the second rotating opening opened by the first semicircular block and the second semicircular block, and the third rotating shaft and the fourth rotating shaft are movably connected with the second rotating opening opened by the first semicircular block and the second semicircular block, and the second screw hole opened by the second earring body is aligned with the fixing screw hole opened by the cover body.

[0011] Preferably, the first screw hole opened in the first earring body and the second screw hole opened in the second earring body are aligned with each other, and fastening bolts are inserted into the first screw hole and the second screw hole to realize the connection between the first earring body and the second earring body, and the first earring body and the second earring body are tightly connected to realize the alignment of the first earring hole and the second earring hole.

[0012] Compared with the prior art, the present invention has the following beneficial effects: the high-precision cylinder head:

[0013] By providing the first earring part and the second earring part, different forms of connection can be achieved, so that the cylinder head does not need to be replaced to connect different connection devices, thereby ensuring that damage in the process of replacing the cylinder head is avoided;

[0014] The connection between the earring part and the cylinder head can be realized by setting the connection round cover, which is connected to the cylinder head by thread, so that the connection round cover and the earring part can be replaced conveniently, and the thread connection is simple to disassemble and assemble, saving the time of disassembly and assembly;

[0015] The entire high-precision cylinder head has a simple structure, is easy to operate, and has better results than traditional methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a high-precision cylinder head of the present invention;

[0017] Figure 2 This is a schematic diagram of the cylinder head structure of a high-precision cylinder head of the present invention;

[0018] Figure 3 A high-precision oil cylinder head of the present invention Figure 1 The enlarged schematic diagram at A in the middle;

[0019] Figure 4 This is a schematic diagram of a connecting round cover structure of a high-precision oil cylinder head of the present invention;

[0020] Figure 5 This is a schematic diagram of the structure of the first earring portion of a high-precision oil cylinder head of the present invention;

[0021] Figure 6 The figure is a schematic diagram of the structure of the second earring part of a high-precision cylinder head of the present invention.

[0022] In the figure: 1, cylinder head; 2, connecting round cover; 201, cover body; 202, connecting cylinder; 203, fixing screw hole; 204, first semicircular block; 205, second semicircular block; 206, first rotating opening; 207, second rotating opening; 3, first earring part; 301, first earring body; 302, first earring hole; 303, first screw hole; 304, first rotating shaft; 305, second rotating shaft; 4, second earring part; 401, second earring body; 402, second earring hole; 403, second screw hole; 404, third rotating shaft; 405, fourth rotating shaft; 5, first fixing bolt; 6, second fixing bolt; 7, connecting thread; 8, annular engaging groove; 9, sealing rubber ring. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0024] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] like Figure 1-6 As shown, a high-precision oil cylinder head comprises a cylinder head 1, a hole wall of the upper end of the cylinder head 1 is provided with a connecting thread 7, a connecting round cover 2 is connected to the upper end of the cylinder head 1, and a first earring part 3 and a second earring part 4 are connected to the upper end of the connecting round cover 2, the first earring part 3 is fixed to the connecting round cover 2 by a first fixing bolt 5, and the second earring part 4 is fixed to the connecting round cover 2 by a second fixing bolt 6, an annular clamping groove 8 is provided on the inner wall of the cylinder head 1 near the hole at the lower end, and a sealing rubber ring 9 is clamped inside the annular clamping groove 8;

[0027] The connecting round cover 2 is composed of a cover body 201, a connecting cylinder 202, a fixing screw hole 203, a first semicircular block 204, a second semicircular block 205, a first rotating opening 206 and a second rotating opening 207. The lower end of the cover body 201 is fixedly connected with the connecting cylinder 202, and the side wall of the connecting cylinder 202 is provided with a thread. The lower end of the connecting cylinder 202 is inserted into the hole opened at the upper end of the cylinder head 1, and the connecting cylinder 202 is movably connected by matching the connecting thread 7 provided in the cylinder head 1 through the thread. The upper end of the cover body 201 is provided with a first semicircular block 204 and a second semicircular block 205, and the first semicircular block 204 and the second semicircular block 205 are provided. The first semicircular block 205 is symmetrically arranged with respect to the central axis of the cover body 201, and the second semicircular block 205 is provided with a first rotation opening 206 and a second rotation opening 207 on one side of the first semicircular block 204, and the first rotation opening 206 and the second rotation opening 207 are symmetrically arranged with respect to the central axis of the second semicircular block 205, and the structures of the first semicircular block 204 and the second semicircular block 205 are consistent, and a fixing screw hole 203 is provided between the first semicircular block 204 and the second semicircular block 205 at the upper end of the cover body 201, and the fixing screw hole 203 provided at the upper end of the cover body 201 is symmetrically arranged with respect to the central axis of the cover body 201; the first earring part 3 is composed of the first earring body 301, the first earring hole 302 and the second earring hole 303. 02, a first screw hole 303, a first rotating shaft 304 and a second rotating shaft 305. A first earring hole 302 is opened at an upper portion of one side of the first earring body 301, and a thread is arranged on the hole wall of the first earring hole 302. A first screw hole 303 is opened at a lower portion of the other side of the first earring body 301, and a first fixing bolt 5 is inserted into the first screw hole 303. A first rotating shaft 304 is arranged at a lower portion of the front end of the first earring body 301, and a second rotating shaft 305 is arranged at a lower portion of the rear end of the first earring body 301, and the second rotating shaft 305 and the first rotating shaft 304 are arranged symmetrically with the central axis of the first earring body 301. The second earring part 4 is composed of the second earring body 301 and the second earring body 301. The earring body 401 is composed of a second earring hole 402, a second screw hole 403, a third rotation axis 404 and a fourth rotation axis 405. The second earring hole 402 is opened at an upper portion of one side of the second earring body 401, and the hole wall of the second earring hole 402 is provided with a thread. The second screw hole 403 is opened at a lower portion of the other side of the second earring body 401, and a second fixing bolt 6 is inserted into the second screw hole 403. The third rotation axis 404 is set at the lower portion of the front end of the second earring body 401, and the fourth rotation axis 405 is set at the lower portion of the rear end of the second earring body 401, and the fourth rotation axis 405 and the third rotation axis 404 are symmetrically arranged with respect to the central axis of the second earring body 401.The first rotating shaft 304 and the second rotating shaft 305 arranged at the lower part of the front and rear ends of the first earring body 301 are engaged with the inside of the first rotating opening 206 opened by the first semicircular block 204 and the second semicircular block 205, and the first rotating shaft 304 and the second rotating shaft 305 are movably connected with the first rotating opening 206 opened by the first semicircular block 204 and the second semicircular block 205, and the first screw hole 303 opened by the first earring body 301 is aligned with the fixing screw hole 203 opened by the cover body 201; the third rotating shaft 404 and the fourth rotating shaft 405 arranged at the lower part of the front and rear ends of the second earring body 401 are engaged with the second rotating opening 206 opened by the first semicircular block 204 and the second semicircular block 205. 7, and the third rotating shaft 404 and the fourth rotating shaft 405 are movably connected with the second rotating opening 207 provided by the first semicircular block 204 and the second semicircular block 205, and the second screw hole 403 provided by the second earring body 401 is aligned with the fixing screw hole 203 provided by the cover body 201; the first screw hole 303 provided by the first earring body 301 and the second screw hole 403 provided by the second earring body 401 are aligned, and the fastening bolts are inserted into the first screw hole 303 and the second screw hole 403 to realize the connection between the first earring body 301 and the second earring body 401, and the first earring body 301 and the second earring body 401 are closely connected to realize the alignment of the first earring hole 302 and the second earring hole 402. ;

[0028] It should be noted that the present invention is a high-precision oil cylinder head. Before installing and using the oil cylinder head, the connecting round cover 2 and the first earring part 3 and the second earring part 4 are first installed. The first rotating shaft 304 and the second rotating shaft 305 of the first earring part 3 are engaged with the first rotating opening 206 provided in the first semicircular block 204 and the second semicircular block 205 provided in the connecting round cover 2 to realize the connection between the first earring part 3 and the connecting round cover 2. The first earring part 3 is pulled to align the first screw hole 303 provided in the first earring body 301 of the first earring part 3 with the fixing screw hole 203 provided on the upper end of the cover body 201. The first fixing bolt 5 is inserted into the first screw hole 303. The first fixing bolt 5 is rotated to penetrate the first earring body 301 of the first earring part 3, so that the first fixing bolt 5 is rotated and connected to the inside of the fixing screw hole 203 opened in the cover body 201, thereby completing the connection of the first earring part 3. The connection method between the second earring part 4 and the connecting round cover 2 is the same as the connection method between the first earring part 3 and the connecting round cover 2. After the installation between the connecting round cover 2 and the first earring part 3 and the second earring part 4 is completed, the connection between the connecting round cover 2 and the cylinder head 1 is then performed, and the connecting cylinder 202 set at the lower end of the connecting round cover 2 is inserted into the hole opened at the upper end of the cylinder head 1. The connecting round cover 2 is rotated, and the connecting cylinder 202 and the hole wall opened in the cylinder head 1 are connected. The connecting thread 7 realizes the connection between the connecting round cover 2 and the cylinder head 1, thereby completing the connection between the connecting round cover 2 and the cylinder head 1. When changing the connection mode of the first earring part 3 and the second earring part 4, the first fixing bolt 5 connected to the first earring part 3 and the second fixing bolt 6 connected to the second earring part 4 are rotated and removed, so that the first earring part 3 and the second earring part 4 can be rotated. When the first earring part 3 and the second earring part 4 are pulled to fit tightly, the first screw hole 303 opened in the first earring body 301 of the first earring part 3 is aligned with the second screw hole 403 opened in the second earring body 401 of the second earring part 4, and the fastening bolt is inserted from the inside of the first screw hole 303 to penetrate the first earring body 301 and the second earring body 401, and then fix the fastening bolts by fastening nuts, thereby completing the combination of the first earring body 301 and the second earring body 401, ensuring that the first earring hole 302 and the second earring hole 402 opened in the second earring body 401 of the first earring body 301 are aligned, thereby ensuring that the inside of the first earring hole 302 and the second earring hole 402 can be connected to the connecting rod, when the first earring body 301 is turned to be vertical to the cover body 201, the second earring body 401 is fixed by the second fixing bolts 6, realizing the vertical setting of the second earring body 401 and the first earring body 301, so that different connecting devices can be connected, and vice versa.

[0029] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A high-precision cylinder head, characterized in that: The cylinder head (1) comprises a cylinder head (1), wherein a connecting thread (7) is arranged on the wall of a hole provided at the upper end of the cylinder head (1), the upper end of the cylinder head (1) is connected to a connecting round cover (2), and the upper end of the connecting round cover (2) is connected to a first earring part (3) and a second earring part (4), the first earring part (3) is fixed to the connecting round cover (2) by a first fixing bolt (5), and the second earring part (4) is fixed to the connecting round cover (2) by a second fixing bolt (6), and an annular clamping groove (8) is provided on the inner wall of the cylinder head (1) near the hole provided at the lower end, and a sealing rubber ring (9) is clamped inside the annular clamping groove (8); The connecting round cover (2) is composed of a cover body (201), a connecting cylinder (202), a fixing screw hole (203), a first semicircular block (204), a second semicircular block (205), a first rotating opening (206) and a second rotating opening (207). The lower end of the cover body (201) is fixedly connected to the connecting cylinder (202), and the side wall of the connecting cylinder (202) is provided with a thread. The lower end of the connecting cylinder (202) is inserted into the hole opened at the upper end of the cylinder head (1), and the connecting cylinder (202) is movably connected to the connecting thread (7) provided on the cylinder head (1) through the thread matching. The upper end of the cover body (201) is provided with a first semicircular block (204) and a second semicircular block (205), and the first semicircular block (2 04 and the second semicircular block (205) are symmetrically arranged about the central axis of the cover body (201); a first rotating opening (206) and a second rotating opening (207) are opened on the side of the second semicircular block (205) directly opposite to the first semicircular block (204); and the first rotating opening (206) and the second rotating opening (207) are symmetrically arranged about the central axis of the second semicircular block (205); the first semicircular block (204) and the second semicircular block (205) have the same structure; a fixing screw hole (203) is opened between the first semicircular block (204) and the second semicircular block (205) at the upper end of the cover body (201); and the fixing screw hole (203) opened at the upper end of the cover body (201) is symmetrically arranged about the central axis of the cover body (201); The first earring part (3) is composed of a first earring body (301), a first earring hole (302), a first screw hole (303), a first rotation axis (304) and a second rotation axis (305); the first earring hole (302) is provided at an upper portion of one side of the first earring body (301), and the hole wall of the first earring hole (302) is provided with a thread; the first screw hole (303) is provided at a lower portion of the other side of the first earring body (301), and a first fixing bolt (5) is inserted into the first screw hole (303); the first rotation axis (304) is provided at a lower portion of the front end of the first earring body (301), and the second rotation axis (305) is provided at a lower portion of the rear end of the first earring body (301), and the second rotation axis (305) and the first rotation axis (304) are symmetrically arranged with respect to the central axis of the first earring body (301); The second earring part (4) is composed of a second earring body (401), a second earring hole (402), a second screw hole (403), a third rotation axis (404) and a fourth rotation axis (405); the second earring body (401) is provided with a second earring hole (402) at an upper portion on one side, and the hole wall of the second earring hole (402) is provided with a thread; the second earring body (401) is provided with a second screw hole (403) at a lower portion on the other side, and a second fixing bolt (6) is inserted into the second screw hole (403); the third rotation axis (404) is provided at a lower portion of a front end of the second earring body (401); the fourth rotation axis (405) is provided at a lower portion of a rear end of the second earring body (401), and the fourth rotation axis (405) and the third rotation axis (404) are symmetrically arranged about the central axis of the second earring body (401); The first rotating shaft (304) and the second rotating shaft (305) arranged at the lower part of the front and rear ends of the first earring body (301) are engaged in the first rotating opening (206) opened by the first semicircular clamping block (204) and the second semicircular clamping block (205), and the first rotating shaft (304) and the second rotating shaft (305) are movably connected to the first rotating opening (206) opened by the first semicircular clamping block (204) and the second semicircular clamping block (205); The third rotating shaft (404) and the fourth rotating shaft (405) arranged at the lower part of the front and rear ends of the second earring body (401) are engaged in the interior of the second rotating opening (207) opened by the first semicircular clamping block (204) and the second semicircular clamping block (205), and the third rotating shaft (404) and the fourth rotating shaft (405) are movably connected to the second rotating opening (207) opened by the first semicircular clamping block (204) and the second semicircular clamping block (205).

2. A high-precision cylinder head according to claim 1, characterized in that: The first screw hole (303) formed in the first earring body (301) is aligned with the first fixing screw hole formed in the cover body (201), and a first fixing bolt (5) is inserted into the first screw hole (303) and the first fixing screw hole; the second screw hole (403) formed in the second earring body (401) is aligned with the second fixing screw hole formed in the cover body (201), and a second fixing bolt (6) is inserted into the second screw hole (403) and the second fixing screw hole.

3. A high-precision cylinder head according to claim 1, characterized in that: The first screw hole (303) formed in the first earring body (301) and the second screw hole (403) formed in the second earring body (401) are aligned with each other, and fastening bolts are inserted into the first screw hole (303) and the second screw hole (403) to realize the connection between the first earring body (301) and the second earring body (401), and the first earring body (301) and the second earring body (401) are tightly connected to realize the alignment of the first earring hole (302) and the second earring hole (402).

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