Piston rod of hydraulic oil cylinder

Abstract

The utility model relates to the technical field of piston rods, and provides a piston rod of a hydraulic oil cylinder, which is convenient for independently replacing the piston rod so as to prolong the service life of the hydraulic oil cylinder, and comprises a cylinder body, a piston body, a piston rod body, a detachable component, a mounting seat, a mounting component, a sealing plate and an opposite component, the piston rod body is detachably connected to the piston body, the detachable assembly is arranged on the piston rod body and used for mounting and dismounting the piston body and the piston rod body, the mounting base is detachably connected to the piston rod body, the mounting assembly is arranged on the mounting base and used for mounting the mounting base to the piston rod body, and the two sealing plates are arranged. Two storage grooves are formed in the cylinder body, the two sealing plates are slidably connected into the two storage grooves correspondingly, the piston rod body is arranged between the two sealing plates, and the opposite assembly is arranged on the cylinder body and used for driving the two sealing plates to slide oppositely.

Description

Technical Field

[0001] The utility model relates to the technical field of piston rods, in particular to a hydraulic cylinder piston rod. Background Art

[0002] The piston rod is a connecting component that supports the piston to do work. It is often used in the motion execution components of hydraulic cylinders. It is a moving component that moves frequently and has high technical requirements. The quality of piston rod processing directly affects the life and reliability of the entire hydraulic cylinder product.

[0003] An existing piston rod structure for a hydraulic oil cylinder, with a patent publication number of CN108019394A, has a cylinder barrel connected to a cylinder bottom through a key cap, a bushing is provided on the cylinder bottom, a first Y-shaped sealing ring is provided on the outer wall of the cylinder barrel, a piston rod is provided in an inner cavity of the cylinder barrel, the piston rod is fixedly connected to the cylinder barrel through a cylinder cover, a dust ring is provided on the outer side of the cylinder cover, the structure is reasonably designed, and the service life is long, the piston rod is made of a hollow stainless steel pipe, which saves costs and is light in weight; there is also an anti-falling hydraulic piston rod and hydraulic oil cylinder, with a patent publication number of CN116123177A, which improves the position limitation of the end cover by providing a transverse transverse fastener on the end cover, improves the pressure-bearing impact strength, and prevents the piston from breaking through the end cover and causing it to fall off, and at the same time provides an auxiliary tank, when the piston excessively squeezes the gasket to cause the end cover to loosen and produce a gap, the hydraulic medium is ejected along the gap under the action of the internal pressure and flows into the auxiliary tank, thereby reducing the internal pressure of the cylinder body cavity and improving the protection of the piston.

[0004] During the use of the above-mentioned prior art solution, the piston rod needs to move frequently and is easily damaged by friction when in contact with the sealing ring. Once the piston rod is damaged, the entire hydraulic cylinder cannot be used anymore, which shortens the service life of the hydraulic cylinder. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies of the prior art, the utility model provides a hydraulic cylinder piston rod to solve the problem in the background art that once the piston rod of the prior art is damaged, the entire hydraulic cylinder cannot be used any more.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a hydraulic cylinder piston rod, comprising a cylinder body, a piston plug body, a piston rod body, a detachable component, a mounting seat, a mounting assembly, a sealing plate and an opposing assembly, the piston plug body being arranged on the cylinder body, the piston rod body being detachably connected to the piston plug body, the detachable assembly being arranged on the piston rod body for installing and disassembling the piston plug body and the piston rod body, the mounting seat being detachably connected to the piston rod body, the mounting assembly being arranged on the mounting seat for installing the mounting seat on the piston rod body, two sealing plates being arranged, two receiving grooves being provided on the cylinder body, the two sealing plates being slidably connected in the two receiving grooves respectively, and the piston rod body being arranged between the two sealing plates, and the opposing assembly being arranged on the cylinder body for driving the two sealing plates to slide toward each other.

[0009] Preferably, the detachable component includes a disassembly column, a connecting thread and a stabilizing component, the disassembly column is fixedly connected to the piston rod body, and the piston plug body is provided with a disassembly groove matching the disassembly column, the connecting thread is arranged on the disassembly column, and the disassembly groove is provided with a connecting screw groove matching the connecting thread, and the stabilizing component is arranged on the piston rod body for further stabilizing the installation of the piston plug body and the piston rod body.

[0010] Furthermore, the stabilizing assembly includes a fixed ring, a telescopic part, a sliding ring and a clamping block, the fixed ring is fixedly connected to the piston rod body, the telescopic parts are provided in plurality, the telescopic parts are fixedly connected to the fixed ring, the sliding ring is fixedly connected to the plurality of telescopic parts, and the sliding ring is slidably mounted on the piston rod body, the clamping block is provided in plurality, the clamping block is fixedly connected to the sliding ring, and a clamping groove matching the clamping block is opened on the piston plug body.

[0011] Furthermore, the telescopic part includes a slide cylinder, a sliding rod and a telescopic spring, the slide cylinder is fixedly connected to the fixed ring, the sliding rod is slidably mounted on the slide cylinder, and the sliding rod is fixedly connected to the sliding ring, the telescopic spring is connected between the fixed ring and the sliding ring, and the telescopic spring is mounted on the slide cylinder and the sliding rod.

[0012] Furthermore, the mounting assembly includes a mounting column and a mounting thread, the mounting column is fixedly connected to the mounting seat, and the piston rod body is provided with a mounting groove matching the mounting column, the mounting thread is arranged on the mounting column, and the mounting groove is provided with a mounting screw groove matching the mounting thread.

[0013] Specifically, the opposing components include a fixed plate, a bidirectional screw, a threaded block, a connecting block, a rotating rod and a rotating knob, wherein two fixed plates are provided, and the fixed plate is fixedly connected to the cylinder body, and the bidirectional screw is rotatably connected between the two fixed plates, two threaded blocks are provided, and the threaded block is threadedly sleeved on the bidirectional screw, and the threaded block is slidably connected to the cylinder body, two connecting blocks are provided, and the two connecting blocks are respectively fixedly connected to the two threaded blocks, and the two connecting blocks are respectively fixedly connected to the two sealing plates, the rotating rod is fixedly connected to the bidirectional screw, and the rotating rod passes through the fixed plate and extends to the outside, and the rotating knob is fixedly connected to the rotating rod.

[0014] (III) Beneficial effects

[0015] In summary, the present invention includes at least one of the following beneficial technical effects:

[0016] The piston rod of the hydraulic cylinder and the opposing components drive the two sealing plates to slide towards each other. The piston rod body is removed from the piston plug body through the detachable component, and then the piston rod body is removed from the mounting seat through the mounting component. The piston rod body can be removed from the cylinder body alone. Therefore, the piston rod of the hydraulic cylinder is easy to replace the piston rod alone, thereby extending the service life of the hydraulic cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure of a partial cross-section of the utility model;

[0019] Figure 3 This is a schematic diagram of the exploded structure of the piston plug body, disassembly column and connecting thread of the utility model;

[0020] Figure 4 It is a schematic diagram of the exploded structure of the fixing ring, sliding ring and clamping block of the utility model;

[0021] Figure 5 It is a schematic diagram of the structure of the fixing plate, the bidirectional screw and the threaded block of the utility model.

[0022] In the figure: 1. Cylinder body; 2. Piston plug body; 3. Piston rod body; 4. Mounting seat; 5. Sealing plate; 6. Disassembly column; 7. Connecting thread; 8. Fixing ring; 9. Sliding ring; 10. Block; 11. Sliding cylinder; 12. Sliding rod; 13. Telescopic spring; 14. Mounting column; 15. Mounting thread; 16. Fixing plate; 17. Bidirectional screw; 18. Thread block; 19. Connecting block; 20. Rotating rod; 21. Rotating knob. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0025] Example 1

[0026] Reference Figures 1 to 5 , a hydraulic cylinder piston rod, comprising a cylinder body 1, a piston plug body 2, a piston rod body 3, a detachable component, a mounting seat 4, a mounting component, a sealing plate 5 and an opposing component, the piston plug body 2 is arranged on the cylinder body 1, the piston rod body 3 is detachably connected to the piston plug body 2, the detachable component is arranged on the piston rod body 3, and is used to install and disassemble the piston plug body 2 and the piston rod body 3, the detachable component comprises a disassembly column 6, a connecting thread 7 and a stabilizing component, the disassembly column 6 is fixedly connected to the piston rod body 3, and a disassembly groove matching the disassembly column 6 is provided on the piston plug body 2, the connecting thread 7 is arranged on the disassembly column 6, and a connecting screw groove matching the connecting thread 7 is arranged in the disassembly groove, the stabilizing component is arranged on the piston rod body 3, and is used to further stably install the piston plug body 2 and the piston rod body 3, the stabilizing component comprises a fixing ring 8, a telescopic member, a sliding ring 9 and a clamping block 10, the fixing ring 8 is fixedly connected to the piston rod body 3, a plurality of telescopic members are provided, and the telescopic member is fixedly connected to the fixed The fixed ring 8 is provided with a plurality of telescopic parts, the sliding ring 9 is slidably sleeved on the piston rod body 3, a plurality of clamping blocks 10 are provided, the clamping blocks 10 are fixedly connected to the sliding ring 9, and a clamping groove matching the clamping blocks 10 is provided on the piston plug body 2, the telescopic parts include a slide cylinder 11, a slide rod 12 and a telescopic spring 13, the slide cylinder 11 is fixedly connected to the fixed ring 8, the slide rod 12 is slidably sleeved on the slide cylinder 11, and the slide rod 12 is fixedly connected to the sliding ring 9, and the telescopic spring 13 is connected to the piston plug body 2. It is connected between the fixed ring 8 and the sliding ring 9, and the telescopic spring 13 is sleeved on the slide cylinder 11 and the sliding rod 12. The sliding ring 9 is slid upward, the telescopic spring 13 contracts, and the sliding rod 12 slides into the slide cylinder 11, driving the block 10 to move upward until it is out of the slot, and then the piston rod body 3 is rotated. The piston rod body 3 drives the disassembly column 6 to rotate, so that the disassembly column 6 is out of the disassembly slot, and the piston rod body 3 can be removed, so that the piston rod body 3 can be replaced separately, thereby extending the service life of the cylinder body 1.

[0027] Reference Figures 1 to 5The mounting seat 4 is detachably connected to the piston rod body 3, and the mounting assembly is arranged on the mounting seat 4 for mounting the mounting seat 4 on the piston rod body 3. The mounting assembly includes a mounting column 14 and a mounting thread 15. The mounting column 14 is fixedly connected to the mounting seat 4, and a mounting groove matching the mounting column 14 is provided on the piston rod body 3. The mounting thread 15 is arranged on the mounting column 14, and a mounting screw groove matching the mounting thread 15 is provided on the mounting groove. The mounting column 14 is inserted into the mounting groove, and the rotating mounting seat 4 drives the mounting column 14 to rotate, so that the mounting thread 15 is threadedly connected with the mounting screw groove, and the mounting seat 4 can be connected to the piston rod body 3. When the position of the piston rod body 3 is fixed, it can be achieved by fixing the mounting seat 4, which is convenient for replacing the piston rod body 3 later. Two sealing plates 5 are provided, and two receiving grooves are provided on the cylinder body 1. The two sealing plates 5 are respectively slidably connected in the two receiving grooves, and the piston rod body 3 is arranged between the two sealing plates 5. The opposite component is arranged on the cylinder body 1, and is used to drive the two sealing plates 5 to slide toward each other. The opposite components include a fixed plate 16, a bidirectional screw 17, a threaded block 18, a connecting block 19, a rotating rod 20 and a rotating knob 21. Two fixed plates 16 are provided, and the fixed plate 16 is fixedly connected to the cylinder body 1. The bidirectional screw 17 is rotatably connected between the two fixed plates 16. Two threaded blocks 18 are provided, and the threaded blocks 18 are threadedly sleeved on the bidirectional screw 17, and the threaded blocks 18 are slidably connected to the cylinder body 1. Two connecting blocks 19 are provided, and the two connecting blocks 19 are respectively fixedly connected to the two threaded blocks 18, and the two connecting blocks 19 are respectively fixedly connected to the two threaded blocks 18. The connecting blocks 19 are respectively fixedly connected to the two sealing plates 5, the rotating rod 20 is fixedly connected to the bidirectional screw 17, and the rotating rod 20 passes through the fixed plate 16 and extends to the outside, the rotating button 21 is fixedly connected to the rotating rod 20, and rotating the rotating button 21 drives the rotating rod 20 to rotate, and the rotating rod 20 rotates to drive the bidirectional screw 17 to rotate, and the rotation of the bidirectional screw 17 drives the two threaded blocks 18 to slide toward each other, thereby driving the two sealing plates 5 to slide toward each other through the two connecting blocks 19, so as to facilitate the replacement of the piston rod body 3.

[0028] Example 2

[0029] In summary, the working principle and working process of the piston rod of the hydraulic cylinder are as follows: when the piston rod body 3 is damaged, first, the rotating knob 21 is rotated to drive the rotating rod 20 to rotate, and the rotation of the rotating rod 20 drives the bidirectional screw 17 to rotate, and the rotation of the bidirectional screw 17 drives the two threaded blocks 18 to slide toward each other, thereby driving the two sealing plates 5 to slide toward each other through the two connecting blocks 19, so that the sealing plate 5 is away from the piston rod body 3, and the sliding ring 9 is slid upward, the telescopic spring 13 contracts, and the sliding rod 12 slides into the sliding cylinder 11, driving the card block 10 to move upward until it is out of the card slot, and then the piston rod body 3 is rotated, and the piston rod body 3 drives the disassembly column 6 to rotate, so that the disassembly column 6 is out of the disassembly slot, and the installation column 14 is out of the installation slot, and the piston rod body 3 can be removed and the piston rod body 3 can be replaced separately.

[0030] The above-mentioned embodiments only express the specific implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A hydraulic cylinder piston rod, comprising a cylinder body (1), characterized in that: Also includes: A piston plug body (2), wherein the piston plug body (2) is arranged on the cylinder body (1); A piston rod body (3), wherein the piston rod body (3) is detachably connected to the piston plug body (2); A detachable component, the detachable component is arranged on the piston rod body (3) and is used for installing and disassembling the piston plug body (2) and the piston rod body (3); A mounting seat (4), wherein the mounting seat (4) is detachably connected to the piston rod body (3); A mounting assembly, the mounting assembly being arranged on the mounting seat (4) and being used for mounting the mounting seat (4) on the piston rod body (3); A sealing plate (5), wherein two sealing plates (5) are provided, and two receiving grooves are provided on the cylinder body (1), the two sealing plates (5) are respectively slidably connected in the two receiving grooves, and the piston rod body (3) is provided between the two sealing plates (5); An opposing component is arranged on the cylinder body (1) and is used to drive the two sealing plates (5) to slide towards each other.

2. A hydraulic cylinder piston rod according to claim 1, characterized in that: The detachable components include: A disassembly column (6), wherein the disassembly column (6) is fixedly connected to the piston rod body (3), and a disassembly groove matching the disassembly column (6) is provided on the piston plug body (2); A connecting thread (7), wherein the connecting thread (7) is arranged on the disassembly column (6), and a connecting screw groove matching the connecting thread (7) is arranged in the disassembly groove; A stabilizing component is arranged on the piston rod body (3) and is used for further stabilizing the installation of the piston plug body (2) and the piston rod body (3).

3. A hydraulic cylinder piston rod according to claim 2, characterized in that: The stabilizing assembly comprises: A fixing ring (8), wherein the fixing ring (8) is fixedly connected to the piston rod body (3); A telescopic member, wherein a plurality of telescopic members are provided and the telescopic members are fixedly connected to the fixing ring (8); A sliding ring (9), wherein the sliding ring (9) is fixedly connected to the plurality of telescopic members, and the sliding ring (9) is slidably sleeved on the piston rod body (3); A clamping block (10), wherein a plurality of clamping blocks (10) are provided, wherein the clamping block (10) is fixedly connected to the sliding ring (9), and a clamping groove matching the clamping block (10) is provided on the piston plug body (2).

4. A hydraulic cylinder piston rod according to claim 3, characterized in that: The telescopic member comprises: A slide cylinder (11), wherein the slide cylinder (11) is fixedly connected to the fixing ring (8); A sliding rod (12), wherein the sliding rod (12) is slidably sleeved on the sliding cylinder (11), and the sliding rod (12) is fixedly connected to the sliding ring (9); A telescopic spring (13), wherein the telescopic spring (13) is connected between the fixed ring (8) and the sliding ring (9), and the telescopic spring (13) is sleeved on the sliding cylinder (11) and the sliding rod (12).

5. The hydraulic cylinder piston rod according to claim 4, characterized in that: The installation assembly includes: A mounting column (14), wherein the mounting column (14) is fixedly connected to the mounting seat (4), and a mounting groove matching the mounting column (14) is provided on the piston rod body (3); A mounting thread (15) is provided on the mounting column (14), and a mounting screw groove matching the mounting thread (15) is provided on the mounting groove.

6. The hydraulic cylinder piston rod according to claim 5, characterized in that: The facing components include: A fixing plate (16), two fixing plates (16) are provided, and the fixing plates (16) are fixedly connected to the cylinder body (1); a bidirectional screw (17), the bidirectional screw (17) being rotatably connected between the two fixing plates (16); A threaded block (18), wherein two threaded blocks (18) are provided, wherein the threaded block (18) is threadably sleeved on the bidirectional screw (17), and the threaded block (18) is slidably connected to the cylinder body (1); A connecting block (19), wherein two connecting blocks (19) are provided, and the two connecting blocks (19) are respectively fixedly connected to the two threaded blocks (18), and the two connecting blocks (19) are respectively fixedly connected to the two sealing plates (5); A rotating rod (20), wherein the rotating rod (20) is fixedly connected to the bidirectional screw rod (17), and the rotating rod (20) passes through the fixed plate (16) and extends to the outside; A rotating knob (21), wherein the rotating knob (21) is fixedly connected to the rotating rod (20).

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