Hydraulic cylinder with auxiliary guide structure

Abstract

The utility model discloses a hydraulic cylinder with an auxiliary guiding structure, and relates to the technical field of auxiliary guiding, the hydraulic cylinder with the auxiliary guiding structure comprises a hydraulic cylinder, a supporting lower plate is arranged below the hydraulic cylinder, a supporting upper plate is arranged at the upper end of the hydraulic cylinder, and guiding telescopic rods are arranged in the supporting upper plate and the supporting lower plate. The lower ends and the upper ends of the guide telescopic rods penetrate through and extend out of the upper supporting plate and the lower supporting plate correspondingly, the four sets of guide telescopic rods are symmetrically arranged on the periphery of the hydraulic cylinder, assembling devices are arranged at the lower ends of the guide telescopic rods, oil pipes are arranged between the adjacent guide telescopic rods, and conveying pipes are externally connected to the oil pipes. According to the scheme, the problems that the hydraulic cylinder is not provided with a guide structure, deviation is prone to occurring in the stretching and retracting process, and the service life of the hydraulic cylinder can be affected are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to auxiliary guide technical field, concretely is a hydraulic cylinder with auxiliary guide structure. BACKGROUND

[0002] Hydraulic cylinder is widely used and is the main execution element of hydraulic system, and the service life of hydraulic cylinder directly decides the maintenance interval and period of action mechanism, in actual production, hydraulic cylinder acts frequently, and working condition and bearing stress are complex, therefore, the support, guide and sealing function of piston have high requirements, usually, hydraulic cylinder is provided with a cylinder mouth guide sleeve at the cylinder head of cylinder body, is used for supporting piston and guiding and correcting its movement track.

[0003] The existing quick empty hydraulic cylinder, such as the quick empty hydraulic cylinder with the announcement number CN102287415A, the device includes, it includes cylinder body, piston rod and oil supply controller set up on the cylinder body, the inside of the piston rod is hollow and forms the rod cavity, the rod cavity is communicated with the third oil port, the first oil port and the second oil port are set up on the cylinder body, the quick empty hydraulic cylinder has two oil chambers, under the control of oil supply controller, the oil chamber in the rod cavity can realize the quick extension of piston rod in non-use stroke, the oil chamber corresponding with the second oil port can realize the steady operation of piston rod, compared with traditional hydraulic cylinder, the quick empty hydraulic cylinder realizes the speed conversion of hydraulic cylinder in stroke without other accessory mechanism, improves work efficiency.

[0004] The above device does not have a guide structure in the existing hydraulic cylinder during use, and deviation occurs during the extension process, which affects the service life of the hydraulic cylinder, therefore, the hydraulic cylinder with auxiliary guide structure is proposed to solve the problems in the above. Utility model content

[0005] The utility model is aimed at providing a hydraulic cylinder with auxiliary guide structure to solve the problems in the above background technology, i.e., the existing hydraulic cylinder does not have a guide structure, deviation occurs during the extension process, and the service life of the hydraulic cylinder is affected.

[0006] To achieve the above object, the utility model provides the following technical scheme: A hydraulic cylinder with auxiliary guide structure, including hydraulic cylinder, the hydraulic cylinder below is provided with support lower plate, the hydraulic cylinder upper end is provided with support upper plate, support upper plate and support lower plate are provided with guide telescopic link in, and the upper and lower ends of guide telescopic link respectively extend to support upper plate and support lower plate outside, guide telescopic link sets up four, and symmetry sets up in the four -around of hydraulic cylinder, the lower end of guide telescopic link is provided with assembling device, the oil pipe is set up between adjacent guide telescopic link, the oil pipe is provided with the delivery pipe outside, the other end of delivery pipe is provided with oil pump, the other side of oil pump is provided with oil tank.

[0007] Preferably, the hydraulic cylinder comprises a support rod, a hydraulic rod, a hydraulic cylinder upper plate and a hydraulic cylinder lower plate, the support rod is arranged around the hydraulic cylinder, the upper end of the support rod penetrates the hydraulic cylinder upper plate, and the hydraulic cylinder upper plate is fixedly connected with the support rod by bolts, the hydraulic rod is arranged in the hydraulic cylinder, the upper end of the hydraulic rod is connected with the support upper plate, and the hydraulic cylinder lower plate is fixedly connected with the support lower plate by bolts.

[0008] Preferably, the upper end of each group of guide telescopic rods penetrates the support upper plate, and a metal ring is arranged between the support upper plate and the support upper plate, and a sealing rubber ring is arranged in the metal ring.

[0009] Preferably, the guide telescopic rod comprises an outer telescopic rod, an inner telescopic rod, a cavity, an oil inlet and a straight bearing, the lower end of the outer telescopic rod is provided with an oil inlet, the oil inlet is provided with two, and the oil inlet is connected with the oil pipe, the outer telescopic rod is provided with a cavity, the cavity is provided with the inner telescopic rod, and the straight bearing is arranged between the inner telescopic rod and the outer telescopic rod.

[0010] Preferably, the straight bearing comprises a ball, an outer ring, a ball baffle and a retainer, the inner groove is arranged in the outer ring, the retainer is arranged in the inner groove, the ball is arranged in the retainer, and the ball baffle is arranged outside the ball.

[0011] Preferably, the support lower plate is provided with a bolt slot, the second bolt is arranged in the bolt slot, the second bolt is arranged in the support lower plate, and the lower end of the second bolt penetrates the support lower plate and the first bolt and extends to the lower end of the first bolt.

[0012] Preferably, the lower end of the support lower plate is provided with a circular clamping groove, the upper end of the assembling device is provided with a circular lug, the circular lug and the circular clamping groove are clamped and connected, and a bolt slot is arranged between the two, and the circular lug and the circular clamping block are fixedly connected through the first bolt and the second bolt in the bolt slot.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] The utility model discloses a four groups of guide telescopic devices are arranged on the periphery of the hydraulic cylinder, and the hydraulic cylinder is assisted and guided, thereby solving the problem that the hydraulic cylinder does not have a guide structure and is easy to deviate during the telescopic process, and the service life of the hydraulic cylinder is affected.

[0015] The four groups of guide telescopic rods are connected together through the assembling device arranged on the lower side of the supporting lower plate, and the oil pipe is arranged between the lower ends of the four groups of guide telescopic rods and is provided with a corresponding oil inlet, so that the guide telescopic rods can be simultaneously lubricated when the guide telescopic rods are in a state of lacking lubrication, the friction loss in the guide telescopic rods is reduced, and the service life of the guide telescopic rods is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the utility model;

[0017] Figure 2 It is a front view of the utility model;

[0018] Figure 3 It is a local enlarged view of the utility model;

[0019] Figure 4 It is a guide telescopic rod sectional view of the utility model;

[0020] Figure 5 It is a linear bearing enlarged view of the utility model;

[0021] Figure 6 It is a linear bearing internal sectional view of the utility model;

[0022] In the drawing: 1, hydraulic cylinder; 1001, supporting rod; 1002, hydraulic rod; 1003, hydraulic cylinder upper plate; 1004, hydraulic cylinder lower plate; 2, supporting lower plate; 3, supporting upper plate; 4, guide telescopic rod; 41, telescopic outer rod; 42, telescopic inner rod; 43, cavity; 44, oil inlet; 45, linear bearing; 451, ball; 452, outer ring; 453, ball baffle; 5, oil pump; 6, oil tank; 7, circular clamping groove; 8, first bolt; 9, second bolt; 10, assembling device; 11, bolt slot; 12, oil pipe; 13, metal ring; 14, sealing rubber ring; 15, conveying pipe. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0024] Please refer to Figures 1-6The utility model provides an embodiment: a hydraulic cylinder with auxiliary guide structure, including hydraulic cylinder 1, the support lower plate 2 of being provided with below hydraulic cylinder 1, the support upper plate 3 of being provided with on the upper end of hydraulic cylinder 1, the guide telescopic link 4 of being provided with in support upper plate 3 and support lower plate 2, and the guide telescopic link 4 upper and lower ends respectively penetrate and extend to support upper plate 3 and support lower plate 2 outside, the guide telescopic link 4 sets up four groups, and symmetrically sets up at the four around of hydraulic cylinder 1, the assembly device 10 of being provided with in the guide telescopic link 4 lower end, the oil pipe 12 of being provided with between adjacent guide telescopic link 4, the oil pipe 12 is connected with the delivery pipe 15, the delivery pipe 15 other end is provided with oil pump 5, and the oil tank 6 of being provided with on the other side of oil pump 5.

[0025] Please refer to Figure 2 , hydraulic cylinder 1 includes support rod 1001, hydraulic rod 1002, hydraulic cylinder upper plate 1003 and hydraulic cylinder lower plate 1004, support rod 1001 sets up at the four around of hydraulic cylinder 1, the upper end of support rod 1001 penetrates hydraulic cylinder upper plate 1003, and hydraulic cylinder upper plate 1003 is fixedly connected with support rod 1001 by bolt, hydraulic rod 1002 is provided in hydraulic cylinder 1, the upper end of hydraulic rod 1002 is attached with support upper plate 3, and hydraulic cylinder lower plate 1004 is fixedly connected with support lower plate 2 by bolt, to increase the stability when using hydraulic cylinder 1.

[0026] Please refer to Figure 4 , the upper end of each group guide telescopic link 4 penetrates support upper plate 3 and is provided with metal ring 13 between support upper plate 3, metal ring 13 is provided with sealing rubber ring 14 in, prevent garbage from entering into cavity 43, leading to guide telescopic link 4 damage.

[0027] Please refer to Figure 4 , guide telescopic link 4 includes telescopic outer rod 41, telescopic inner rod 42, cavity 43, oil inlet 44 and straight bearing 45, telescopic outer rod 41 lower end is provided with oil inlet 44, oil inlet 44 is provided with two, and oil inlet 44 is connected with oil pipe 12 pipeline, telescopic outer rod 41 is provided with cavity 43, cavity 43 is provided with telescopic inner rod 42, and straight bearing 45 is provided between telescopic inner rod 42 and telescopic outer rod 41, plays the role of auxiliary guide to hydraulic cylinder 1.

[0028] Please refer to Figure 6 , straight bearing 45 includes ball 451, outer ring 452, ball baffle 453 and retainer, the inner groove is set up in outer ring 452, the retainer is set up in the inner groove, the ball 451 is set up in the retainer, the ball 451 outside is provided with ball baffle 453, and the telescopic inner rod 42 is limited in position, and the friction between telescopic inner rod 42 and telescopic outer rod 41 can be reduced, so that the service life of guide telescopic link 4 is prolonged.

[0029] Please refer to Figure 2The support lower plate 2 is provided with a bolt slot 11, and the second bolt 9 is arranged in the bolt slot 11 and is arranged in the support lower plate 2, and the lower end of the second bolt 9 penetrates the support lower plate 2 and the first bolt 8 and extends to the lower end of the first bolt 8, thereby fixing the assembling device 10.

[0030] Please refer to Figure 3 The lower end of the support lower plate 2 is provided with a circular clamping groove 7, the upper end of the assembling device 10 is provided with a circular protrusion, the circular protrusion and the circular clamping groove 7 are clamped and connected, and the bolt slot 11 is arranged between the circular protrusion and the circular clamping groove 7, the circular protrusion and the circular clamping block are fixedly connected through the first bolt 8 and the second bolt 9 in the bolt slot 11, and after the circular clamping groove 7 and the circular protrusion are clamped and connected, the first bolt 8 and the second bolt 9 arranged between the circular clamping groove 7 and the circular protrusion are matched, so that the fixing effect is achieved.

[0031] Working principle: when in use, the hydraulic cylinder 1 is controlled, the hydraulic rod 1002 in the hydraulic cylinder 1 is used to lift the support upper plate 3 connected therewith to the required position, the telescopic inner rod 42 in the guide telescopic rod 4 arranged around the hydraulic cylinder 1 plays an auxiliary guiding role when the hydraulic cylinder 1 works, the assembling device 10 is arranged at the lower end of the four groups of guide telescopic rods 4, and the four groups of guide telescopic rods 4 are connected into one body, so that the installation or disassembly is more convenient.

[0032] The oil pipe 12 is arranged between the lower ends of the adjacent guide telescopic rods, and the corresponding oil inlet 44 is arranged, the conveying pipe 15 is connected to the oil pipe 12, the oil pump 5 is arranged at the other end of the conveying pipe 15, and the oil tank 6 is arranged at the other side of the oil pump 5, and when the guide telescopic rod 4 lacks lubrication, the four groups of guide telescopic rods 4 can be simultaneously conveyed with lubricating oil.

[0033] It is obvious for those skilled in the art that the present application is not limited to the details of the above-mentioned exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims.

Claims

1. Hydraulic cylinder with auxiliary guiding structure, comprising a hydraulic cylinder (1), characterized in that: The hydraulic cylinder (1) is provided below with a support lower plate (2), and the upper end of the hydraulic cylinder (1) is provided with a support upper plate (3), the support upper plate (3) and the support lower plate (2) are provided with guide telescopic rods (4), and the upper and lower ends of the guide telescopic rods (4) respectively penetrate and extend to the outside of the support upper plate (3) and the support lower plate (2), the guide telescopic rods (4) are provided with four groups, and are symmetrically arranged around the hydraulic cylinder (1), the lower end of the guide telescopic rod (4) is provided with an assembling device (10), the adjacent guide telescopic rods (4) are provided with oil pipes (12), the oil pipes (12) are provided outside with a conveying pipe (15), the other end of the conveying pipe (15) is provided with an oil pump (5), and the other side of the oil pump (5) is provided with an oil tank (6).

2. The hydraulic cylinder with auxiliary guide structure according to claim 1, characterized in that: The hydraulic cylinder (1) comprises a support rod (1001), a hydraulic rod (1002), a hydraulic cylinder upper plate (1003) and a hydraulic cylinder lower plate (1004), the support rod (1001) is arranged around the hydraulic cylinder (1), the upper end of the support rod (1001) penetrates the hydraulic cylinder upper plate (1003), and the hydraulic cylinder upper plate (1003) is fixedly connected with the support rod (1001) through bolts, the hydraulic cylinder (1) is provided with the hydraulic rod (1002), the upper end of the hydraulic rod (1002) is connected with the support upper plate (3), and the hydraulic cylinder lower plate (1004) is fixedly connected with the support lower plate (2) through bolts.

3. The hydraulic cylinder with auxiliary guide structure according to claim 2, characterized in that: The upper end of each group of the guide telescopic rods (4) penetrates the support upper plate (3), and a metal ring (13) is arranged between the support upper plate (3), and the metal ring (13) is provided with a sealing rubber ring (14).

4. The hydraulic cylinder with auxiliary guide structure according to claim 3, characterized in that: The guide telescopic rod (4) comprises a telescopic outer rod (41), a telescopic inner rod (42), a cavity (43), an oil inlet (44) and a straight bearing (45), the lower end of the telescopic outer rod (41) is provided with the oil inlet (44), the oil inlet (44) is provided with two, and the oil inlet (44) is connected with the oil pipe (12) pipeline, the telescopic outer rod (41) is provided with the cavity (43), the cavity (43) is provided with the telescopic inner rod (42), and the telescopic inner rod (42) and the telescopic outer rod (41) are provided with the straight bearing (45).

5. The hydraulic cylinder with auxiliary guide structure according to claim 4, characterized in that: The straight bearing (45) comprises a ball (451), an outer ring (452), a ball baffle (453) and a retainer, an inner groove is formed in the outer ring (452), the retainer is arranged in the inner groove, the ball (451) is arranged in the retainer, and the ball baffle (453) is arranged on the outer side of the ball (451).

6. The hydraulic cylinder with auxiliary guide structure according to claim 5, characterized in that: The support lower plate (2) is provided with a bolt slot (11), the second bolt (9) is arranged in the bolt slot (11), the second bolt (9) is arranged in the support lower plate (2), and the lower end of the second bolt (9) penetrates the support lower plate (2) and the first bolt (8) and extends to the lower end of the first bolt (8).

7. The hydraulic cylinder with auxiliary guide structure according to claim 6, characterized in that: The support lower plate (2) is provided with a circular clamping groove (7) at the lower end, the assembling device (10) is provided with a circular protrusion at the upper end, the circular protrusion and the circular clamping groove (7) are clamped and connected, and a bolt slot (11) is arranged between the two, and the circular protrusion and the circular clamping block are fixedly connected through the first bolt (8) and the second bolt (9) in the bolt slot (11).

Images