A buffer structure of hydraulic cylinder body

Abstract

The present invention relates to a buffer structure of a hydraulic cylinder body, which belongs to the technical field of buffer structures and includes a hydraulic cylinder body. The buffer structure of the hydraulic cylinder body can be used to protect the inner wall of the hydraulic cylinder body from direct impact damage by setting an elastic ring, an energy absorption ring and a wear-resistant ring, so as to achieve all-round protection of the hydraulic cylinder body, improve the durability of the buffer effect, and effectively prevent the rapid damage of the buffer material. The damping shock absorbers on the upper and lower sides can absorb and disperse the impact energy when the piston moves inside the hydraulic cylinder body, so as to protect the inner wall of the hydraulic cylinder body from direct impact damage. By setting the upper and lower side buffer pads, energy can be absorbed again. By setting the upper and lower telescopic rods, the piston can be limited and moved to improve stability. At the same time, the introduction of the wear-resistant ring effectively protects the inner wall of the hydraulic cylinder body, reduces the damage caused by impact, and thus prolongs the overall service life of the hydraulic cylinder body.

Description

Technical Field

[0001] The utility model relates to the technical field of buffer structures, in particular to a buffer structure of a hydraulic cylinder body. Background Art

[0002] The hydraulic cylinder is the actuator in the hydraulic transmission system. It is an energy conversion device that converts hydraulic energy into mechanical energy. The hydraulic motor realizes continuous rotary motion, while the hydraulic cylinder realizes reciprocating motion. The structural forms of hydraulic cylinders include three categories: piston cylinder, plunger cylinder, and swing cylinder. The piston cylinder and plunger cylinder realize reciprocating linear motion, output speed and thrust, and the swing cylinder realizes reciprocating swing.

[0003] At present, although there have been breakthroughs in the design of buffer structures of hydraulic cylinders on the market, there are still problems such as poor buffering effect and easy damage, which affect the overall performance of the hydraulic cylinder. The traditional hydraulic cylinder buffer structure usually adopts a single buffer ring or buffer pad to reduce the impact force when the piston moves to the terminal. However, after long-term use, the buffering effect of this structure will be significantly reduced, and the buffering material is easily damaged, resulting in damage to the inner wall of the hydraulic cylinder. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a buffer structure for a hydraulic cylinder body, which has the advantages of reducing damage caused by impact and extending the overall service life of the hydraulic cylinder body. It solves the problem that the buffer structure of the hydraulic cylinder body usually adopts a single buffer ring or buffer pad to reduce the impact force when the piston moves to the terminal. However, after long-term use, the buffering effect of this structure will be significantly reduced, and the buffering material is easily damaged, resulting in damage to the inner wall of the hydraulic cylinder body.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a buffer structure of a hydraulic cylinder, comprising a hydraulic cylinder body, a piston is slidably connected inside the hydraulic cylinder body, a driving rod is fixed to the right side of the piston, the right side of the driving rod penetrates the hydraulic cylinder body and extends to the right side, the driving rod is sealingly slidably connected inside the hydraulic cylinder body, a buffer mechanism is provided on the outside of the driving rod, and connecting components are provided on the left and right side walls of the inner cavity of the hydraulic cylinder body;

[0006] The buffer mechanism includes a fixed ring, two telescopic rods, two damping shock absorbers, two connecting rods and two buffer pads. The fixed ring is fixed to the outer side of the right side of the driving rod, one end of the two telescopic rods is hingedly connected to the upper and lower sides of the fixed ring through a hinge seat, the damping shock absorber is fixed to the left side of the telescopic rod, the connecting rod is fixed to the left side of the damping shock absorber, and the two buffer pads are fixed to the upper and lower sides of one end of the hydraulic cylinder body, and the right side of the buffer pad is fixedly connected to the left side of the connecting rod.

[0007] By adopting this technical solution, the damage caused by impact is reduced and the overall service life of the hydraulic cylinder body is extended.

[0008] Furthermore, the telescopic rod includes a first movable rod, the interior of the first movable rod is slidably connected to a second movable rod, and the interior of the second movable rod is slidably connected to a third movable rod.

[0009] By adopting this technical solution, the sliding stability of the piston inside the hydraulic cylinder body can be improved through the telescopic rods on the upper and lower sides.

[0010] Furthermore, the damping shock absorber comprises a first damping rod, the interior of the first damping rod is slidably connected to a second damping rod, and the outer side of the first damping rod is movably sleeved with a spring.

[0011] By adopting this technical solution,

[0012] Furthermore, the connecting assembly includes two elastic rings, two energy absorption rings and two wear-resistant rings. The elastic rings on the left and right sides are fixed to the left and right side walls of the inner cavity of the hydraulic cylinder body, the energy absorption rings on the left and right sides are fixed to the opposite side of the left and right elastic rings, and the wear-resistant rings on the left and right sides are fixed to the opposite side of the left and right energy absorption rings.

[0013] By adopting this technical solution, all-round protection of the hydraulic cylinder body is achieved, and the durability of the buffering effect is improved.

[0014] Furthermore, the elastic ring is a thermoplastic polyurethane ring, the energy absorption ring is a rubber ring, and the wear-resistant ring is a polyurethane ring.

[0015] By adopting this technical solution, the introduction of the wear-resistant ring effectively protects the inner wall of the hydraulic cylinder.

[0016] Furthermore, the elastic ring, energy absorption ring and wear-resistant ring on the right side are all slidably connected to the outside of the driving rod, and the gaps are matched.

[0017] By adopting this technical solution, the inner wall of the hydraulic cylinder body can be effectively protected through the cooperation between the elastic ring, the energy absorption ring and the wear-resistant ring, reducing the damage caused by impact, thereby extending the overall service life of the hydraulic cylinder body.

[0018] Furthermore, the buffer pad is a rubber block, and the upper and lower buffer pads are symmetrically distributed on the upper and lower sides of the transverse center axis of the hydraulic cylinder body.

[0019] By adopting this technical solution, energy absorption and buffering can be performed through the buffer pads on the upper and lower sides.

[0020] Furthermore, the inner diameter of the fixing ring is matched with the outer diameter of the driving rod.

[0021] By adopting this technical solution, the stability of the fixing ring on the outer side of the driving rod is improved.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] The buffer structure of the hydraulic cylinder body can be used to protect the inner wall of the hydraulic cylinder body from direct impact damage by arranging an elastic ring, an energy absorption ring and a wear-resistant ring, so as to achieve all-round protection of the hydraulic cylinder body, improve the durability of the buffer effect, and effectively prevent the rapid damage of the buffer material. The damping shock absorbers on the upper and lower sides can absorb and disperse the impact energy when the piston moves inside the hydraulic cylinder body, so as to protect the inner wall of the hydraulic cylinder body from direct impact damage. By arranging the upper and lower buffer pads, energy can be absorbed again. By arranging the upper and lower telescopic rods, the piston can be limited in movement to improve stability. At the same time, the introduction of the wear-resistant ring effectively protects the inner wall of the hydraulic cylinder body, reduces the damage caused by impact, and thus prolongs the overall service life of the hydraulic cylinder body. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the buffer mechanism of the utility model;

[0026] Figure 3 It is a three-dimensional schematic diagram of the fixing ring of the utility model;

[0027] Figure 4 This is a schematic diagram of the connection components of the utility model.

[0028] In the figure: 1. hydraulic cylinder body; 2. piston; 3. driving rod; 4. buffer mechanism; 41. fixing ring; 42. telescopic rod; 43. damping shock absorber; 44. connecting rod; 45. buffer pad; 5. connecting assembly; 51. elastic ring; 52. energy absorption ring; 53. wear-resistant ring. DETAILED DESCRIPTION

[0029] 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.

[0030] See also Figure 1A buffer structure of a hydraulic cylinder body in this embodiment includes a hydraulic cylinder body 1, a piston 2 is slidably connected inside the hydraulic cylinder body 1, a driving rod 3 is fixed to the right side of the piston 2, the right side of the driving rod 3 penetrates the hydraulic cylinder body 1 and extends to the right side, the driving rod 3 is sealingly slidably connected inside the hydraulic cylinder body 1, a buffer mechanism 4 is provided on the outside of the driving rod 3, the buffer mechanism 4 is used to protect the inner wall of the hydraulic cylinder body from direct impact damage, and the left and right side walls of the inner cavity of the hydraulic cylinder body 1 are provided with connecting components 5, and the connecting components 5 extend the overall service life of the hydraulic cylinder body.

[0031] See also Figure 2-4 In order to reduce the damage caused by impact and extend the overall service life of the hydraulic cylinder body, in this embodiment, the buffer mechanism 4 includes a fixed ring 41, two telescopic rods 42, two damping shock absorbers 43, two connecting rods 44 and two buffer pads 45. The fixed ring 41 is fixed to the outer side of the right side of the driving rod 3, one end of the two telescopic rods 42 is hingedly connected to the upper and lower sides of the fixed ring 41 through a hinge seat, the damping shock absorber 43 is fixed to the left side of the telescopic rod 42, the connecting rod 44 is fixed to the left side of the damping shock absorber 43, and the two buffer pads 45 are fixed to the upper and lower sides of one end of the hydraulic cylinder body 1, and the right side of the buffer pad 45 is fixedly connected to the left side of the connecting rod 44.

[0032] In this embodiment, the damping shock absorbers 43 on the upper and lower sides can absorb and disperse the impact energy when the piston 2 moves inside the hydraulic cylinder body 1, so as to protect the inner wall of the hydraulic cylinder body from direct impact damage. By setting the upper and lower buffer pads 45, energy can be absorbed again. By setting the upper and lower telescopic rods 42, the piston 2 can be limited in movement to improve stability.

[0033] In this embodiment, the telescopic rod 42 includes a first movable rod, the first movable rod is internally slidably connected to the second movable rod, the second movable rod is internally slidably connected to the third movable rod, the damping shock absorber 43 includes a first damping rod, the first damping rod is internally slidably connected to the second damping rod, the outer movable sleeve of the first damping rod is equipped with a spring, the connecting assembly 5 includes two elastic rings 51, two energy absorption rings 52 and two wear-resistant rings 53, and the left and right elastic rings 51 are fixed to the left and right side walls of the inner cavity of the hydraulic cylinder body 1.

[0034] In this embodiment, an elastic ring 51 is provided to absorb the initial impact force when the piston 2 moves, the energy-absorbing ring 52 is made of high-damping material to further absorb and disperse the impact energy, and the wear-resistant ring 53 is made of highly wear-resistant material to protect the inner wall of the hydraulic cylinder body from direct impact damage, thereby achieving all-round protection of the hydraulic cylinder body, improving the durability of the buffering effect, and effectively preventing the rapid damage of the buffering material.

[0035] In this embodiment, the left and right energy absorption rings 52 are fixed on the opposite side of the left and right elastic rings 51, and the left and right wear-resistant rings 53 are fixed on the opposite side of the left and right energy absorption rings 52. The elastic ring 51 is a thermoplastic polyurethane ring, the energy absorption ring 52 is a rubber ring, and the wear-resistant ring 53 is a polyurethane ring. The right elastic ring 51, the energy absorption ring 52 and the wear-resistant ring 53 are all slidably connected to the outside of the driving rod 3, and the gaps are matched. The buffer pad 45 is a rubber block, and the upper and lower buffer pads 45 are symmetrically distributed on the upper and lower sides of the transverse center axis of the hydraulic cylinder body 1. The inner diameter of the fixing ring 41 is adapted to the outer diameter of the driving rod 3.

[0036] It should be noted that the introduction of the wear-resistant ring 53 effectively protects the inner wall of the hydraulic cylinder body, reduces the damage caused by impact, and thus prolongs the overall service life of the hydraulic cylinder body.

[0037] The working principle of the above embodiment is:

[0038] An elastic ring 51 is provided to absorb the initial impact force of the piston 2 during movement; an energy-absorbing ring 52 is made of high-damping material to further absorb and disperse the impact energy; a wear-resistant ring 53 is made of a material with strong wear resistance to protect the inner wall of the hydraulic cylinder body from direct impact damage, thereby achieving all-round protection of the hydraulic cylinder body, improving the durability of the buffering effect, and effectively preventing the rapid damage of the buffering material; the damping shock absorbers 43 on the upper and lower sides can absorb and disperse the impact energy when the piston 2 moves inside the hydraulic cylinder body 1, so as to protect the inner wall of the hydraulic cylinder body from direct impact damage; energy can be absorbed again by providing upper and lower buffer pads 45; and the piston 2 can be limited in movement by providing upper and lower telescopic rods 42 to improve stability. At the same time, the introduction of the wear-resistant ring 53 effectively protects the inner wall of the hydraulic cylinder body, reduces damage caused by impact, and thus extends the overall service life of the hydraulic cylinder body.

Claims

1. A buffer structure of a hydraulic cylinder, comprising a hydraulic cylinder body (1), characterized in that: The interior of the hydraulic cylinder body (1) is slidably connected to a piston (2), a driving rod (3) is fixed to the right side of the piston (2), the right side of the driving rod (3) penetrates the hydraulic cylinder body (1) and extends to the right side, the driving rod (3) is sealingly slidably connected to the interior of the hydraulic cylinder body (1), a buffer mechanism (4) is provided on the outside of the driving rod (3), and connecting components (5) are provided on the left and right side walls of the inner cavity of the hydraulic cylinder body (1); The buffer mechanism (4) comprises a fixing ring (41), two telescopic rods (42), two damping shock absorbers (43), two connecting rods (44) and two buffer pads (45), wherein the fixing ring (41) is fixed to the outer side of the right side of the driving rod (3), one end of each of the two telescopic rods (42) is hingedly connected to the upper and lower sides of the fixing ring (41) through a hinge seat, the damping shock absorber (43) is fixed to the left side of the telescopic rod (42), the connecting rod (44) is fixed to the left side of the damping shock absorber (43), and the two buffer pads (45) are fixed to the upper and lower sides of one end of the hydraulic cylinder body (1), and the right side of the buffer pad (45) is fixedly connected to the left side of the connecting rod (44).

2. The buffer structure of a hydraulic cylinder according to claim 1, characterized in that: The telescopic rod (42) comprises a first movable rod, the interior of the first movable rod is slidably connected to a second movable rod, and the interior of the second movable rod is slidably connected to a third movable rod.

3. The buffer structure of a hydraulic cylinder according to claim 1, characterized in that: The damping shock absorber (43) comprises a first damping rod, the interior of the first damping rod is slidably connected to a second damping rod, and the outer side of the first damping rod is movably sleeved with a spring.

4. The buffer structure of a hydraulic cylinder according to claim 1, characterized in that: The connecting assembly (5) comprises two elastic rings (51), two energy absorption rings (52) and two wear-resistant rings (53); the left and right elastic rings (51) are fixed to the left and right side walls of the inner cavity of the hydraulic cylinder body (1); the left and right energy absorption rings (52) are fixed to the opposite sides of the left and right elastic rings (51); and the left and right wear-resistant rings (53) are fixed to the opposite sides of the left and right energy absorption rings (52).

5. The buffer structure of a hydraulic cylinder according to claim 4, characterized in that: The elastic ring (51) is a thermoplastic polyurethane ring, the energy absorption ring (52) is a rubber ring, and the wear-resistant ring (53) is a polyurethane ring.

6. The buffer structure of a hydraulic cylinder according to claim 4, characterized in that: The elastic ring (51), energy absorption ring (52) and wear-resistant ring (53) on the right side are all slidably connected to the outside of the driving rod (3), and the gaps are matched.

7. The buffer structure of a hydraulic cylinder according to claim 1, characterized in that: The buffer pad (45) is a rubber block, and the upper and lower buffer pads (45) are symmetrically distributed on the upper and lower sides of the transverse center axis of the hydraulic cylinder body (1).

8. The buffer structure of a hydraulic cylinder according to claim 1, characterized in that: The inner diameter of the fixing ring (41) is matched to the outer diameter of the driving rod (3).

Images