CN216742255U

CN216742255U - Leak-proof sealing element for hydraulic machinery

Info

Publication number: CN216742255U
Application number: CN202123129018.6U
Authority: CN
Inventors: 郄旭东; 张晓斌; 郭和爱; 张旭兵; 张旭
Original assignee: Shijiazhuang Beike Sealing Technology Co ltd
Current assignee: Shijiazhuang Beike Sealing Technology Co ltd
Priority date: 2021-12-13
Filing date: 2021-12-13
Publication date: 2022-06-14
Anticipated expiration: 2031-12-13

Abstract

The utility model relates to a sealing device technical field provides a leak protection sealing member for hydraulic pressure machinery, including the seal box, seal box up end middle part is provided with the slip chamber, slip intracavity chamber lower part joint has the rubber seal ring, the terminal surface is provided with coupling mechanism under the seal box, slip chamber both sides are provided with first adjustment mechanism and second adjustment mechanism respectively, second adjustment mechanism one end fixedly connected with second rubber seal piece. Through the technical scheme, the problem that the oil leakage of the hydraulic device is easy to occur after the leakage-proof sealing element for the hydraulic machine in the related technology is inconvenient to disassemble and the service life of the existing sealing element is long is solved.

Description

Leak-proof sealing element for hydraulic machinery

Technical Field

The utility model relates to a sealing device technical field, it is concrete relates to a leak protection sealing member for hydraulic machine.

Background

With the development of industry, hydraulic oil cylinders are closely related to human life, and the hydraulic oil cylinders are hydraulic actuating elements which convert hydraulic energy into mechanical energy and perform linear reciprocating motion. Current leak protection is sealed for hydraulic cylinder generally reaches sealed function through set up rubber seal ring in hydraulic cylinder inside, but under the reciprocating motion of piston rod when current rubber seal ring uses, can take place the wearing and tearing of certain degree, it is long-lasting, hydraulic oil will follow wearing and tearing department and flow, prior art generally is the direct change sealing ring, but this kind of mode is unfavorable for practicing thrift the cost, current leak protection oil sealing member generally is integrative with hydraulic cylinder simultaneously, need dismantle the hydro-cylinder earlier during the dismantlement, just can take out the sealing member, it is very troublesome to operate. In view of this, we propose a leak-proof seal for hydraulic machines.

SUMMERY OF THE UTILITY MODEL

The utility model provides a leak protection sealing member for hydraulic machine has solved the inconvenient dismantlement of leak protection sealing member for hydraulic machine among the correlation technique and has had the longer back of sealing member live time now, takes place the problem of hydraulic means oil leak easily.

The technical scheme of the utility model as follows: the utility model provides a leak protection sealing member for hydraulic machinery, includes the seal box, seal box up end middle part is provided with the slip chamber, slip intracavity chamber lower part joint has rubber seal ring, the terminal surface is provided with coupling mechanism under the seal box, slip chamber both sides are provided with first adjustment mechanism and second adjustment mechanism respectively, second adjustment mechanism one end fixedly connected with second rubber seal piece.

Preferably, the first adjusting mechanism comprises a knob, an indicating block, scale marks, a worm, a left thread, a right thread, a worm wheel, a transmission rack, a sliding plate, a sliding rod, an extrusion spring and a first rubber sealing block, wherein the indicating block is fixedly connected with one end of the knob, the scale marks are slidably connected with one side of the indicating block, and the worm is fixedly connected with one side of the indicating block.

Preferably, both ends of the outer surface of the worm are fixedly connected with a left thread and a right thread respectively, one side of the outer surface of the worm is meshed with a worm wheel, the outer surface of the worm wheel is meshed with a transmission rack through teeth, one side of the transmission rack is fixedly connected with a sliding plate, one side of the sliding plate is slidably connected with a first rubber sealing block through a sliding rod, and the outer surface of the sliding rod is provided with an extrusion spring.

Preferably, the two ends of the extrusion spring are fixedly connected with the sliding plate and the first rubber sealing block respectively, one side of the knob is rotatably connected with the sealing box through a rotating shaft, the two ends of the worm are rotatably connected with the sealing box, the lower end face of one side of the worm wheel is rotatably connected with the sealing box, the inner cavity of the sealing box is connected with the transmission rack, the sliding plate and the first rubber sealing block, and scale marks are arranged on one side of the sealing box.

Preferably, a knob, an indication block, a scale mark, a worm, a left thread, a right thread, a worm wheel, a transmission rack, a sliding plate, a sliding rod, an extrusion spring and a first rubber sealing block are sequentially arranged on one side of the second adjusting mechanism according to the installation mode of the first adjusting mechanism.

Preferably, the two sides of the second rubber sealing block are in sliding connection with the inner cavity of the sealing box, the first rubber sealing block, the second rubber sealing block and the rubber sealing ring are filled with nitrile rubber, and one side of the first rubber sealing block is in sliding connection with the second rubber sealing block.

Preferably, the connecting mechanism comprises a connecting pipe, a mounting plate, a mounting hole and connecting threads, the connecting threads are arranged in the inner cavity of the connecting pipe, and the mounting plate is fixedly connected to the lower part of the outer surface of the connecting pipe.

Preferably, the upper end face of the connecting pipe is fixedly connected with the seal box, and the upper end face of the mounting plate is provided with a mounting hole.

The utility model discloses a theory of operation and beneficial effect do:

1. in the utility model, one side of the knob is rotationally connected with the seal box through the rotating shaft, when the seal box is installed, the hydraulic oil cylinder can be sealed through the rubber sealing ring, the first rubber sealing block and the second rubber sealing block, the oil leakage is generated when the piston rod moves, after the seal box is used for a period of time, after the contact surfaces of the rubber sealing ring, the first rubber sealing block and the second rubber sealing block and the piston rod are worn, the hydraulic oil flows out from the worn part, the worker can rotate the knob to drive the worm to rotate, the worm drives the transmission rack to move through meshing the worm wheel, the transmission rack drives the first rubber sealing block to extrude the piston rod through the sliding rod, the contact surface is tight again, simultaneously, the second adjusting mechanism is operated according to the rotating radian of the first adjusting mechanism, and the second rubber sealing block is close to the piston rod, therefore, the effect of resealing can be achieved without replacing the sealing sheet, and the effect of saving cost is realized.

2. The utility model discloses in, through connecting pipe surface lower part fixed connection's mounting panel, the during operation, earlier rotating connecting pipe is fixed on hydraulic cylinder through connecting thread, after connecting pipe rotating to the lower, passes the mounting hole with the mounting bolt and makes mounting panel and hydraulic cylinder fixed connection to install the seal box in hydraulic cylinder.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is an enlarged view of area A of FIG. 2;

fig. 4 is the schematic diagram of the semi-section structure of the utility model.

In the figure: 1. a sealing box; 2. a sliding cavity; 3. a first adjustment mechanism; 31. a knob; 32. an indication block; 33. scale lines; 34. a worm; 35. a left thread; 36. a right thread; 37. a worm gear; 38. a drive rack; 39. a sliding plate; 310. a slide bar; 311. a compression spring; 312. a first rubber seal block; 4. a second adjustment mechanism; 5. a second rubber sealing block; 6. a rubber seal ring; 7. a connecting mechanism; 71. a connecting pipe; 72. mounting a plate; 73. mounting holes; 74. and connecting threads.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive work, are related to the scope of the present invention.

Example 1

As shown in fig. 1, fig. 2 and fig. 3, the embodiment provides a leak-proof sealing member for hydraulic machinery, which includes a sealing box 1, a sliding cavity 2 is disposed in the middle of the upper end surface of the sealing box 1, a rubber sealing ring 6 is clamped in the lower portion of the inner cavity of the sliding cavity 2, a connecting mechanism 7 is disposed on the lower end surface of the sealing box 1, a first adjusting mechanism 3 and a second adjusting mechanism 4 are respectively disposed on two sides of the sliding cavity 2, a second rubber sealing block 5 is fixedly connected to one end of the second adjusting mechanism 4, the first adjusting mechanism 3 includes a knob 31, an indicating block 32, a scale mark 33, a worm 34, a left thread 35, a right thread 36, a worm wheel 37, a transmission rack 38, a sliding plate 39, a sliding rod 310, an extrusion spring 311, and a first rubber sealing block 312, an indicating block 32 is fixedly connected to one end of the knob 31, a scale mark 33 is slidably connected to one side of the indicating block 32, a worm 34 is fixedly connected to one side of the indicating block 32, the two ends of the outer surface of the worm 34 are fixedly connected with a left thread 35 and a right thread 36 respectively, one side of the outer surface of the worm 34 is meshed with a worm wheel 37, the outer surface of the worm wheel 37 is meshed with a transmission rack 38 through teeth, one side of the transmission rack 38 is fixedly connected with a sliding plate 39, one side of the sliding plate 39 is slidably connected with a first rubber sealing block 312 through a sliding rod 310, the outer surface of the sliding rod 310 is provided with an extrusion spring 311, two ends of the extrusion spring 311 are fixedly connected with the sliding plate 39 and the first rubber sealing block 312 respectively, one side of the knob 31 is rotatably connected with the seal box 1 through a rotating shaft, two ends of the worm 34 are rotatably connected with the seal box 1, the lower end face of one side of the worm wheel 37 is rotatably connected with the seal box 1, the inner cavity of the seal box 1 is connected with the transmission rack 38, the sliding plate 39 and the first rubber sealing block 312, one side of the seal box 1 is provided with a scale line 33, and one side of the second adjusting mechanism 4 is sequentially provided with the knob 31, the right thread 36 and the first adjusting mechanism 3, The rubber sealing box comprises an indication block 32, a scale mark 33, a worm 34, a left thread 35, a right thread 36, a worm wheel 37, a transmission rack 38, a sliding plate 39, a sliding rod 310, an extrusion spring 311, a first rubber sealing block 312, two sides of a second rubber sealing block 5 are in sliding connection with an inner cavity of the sealing box 1, nitrile rubber is filled in the first rubber sealing block 312, the second rubber sealing block 5 and a rubber sealing ring 6, and one side of the first rubber sealing block 312 is in sliding connection with the second rubber sealing block 5.

In this embodiment, since one side of the knob 31 is rotatably connected to the seal box 1 through a rotating shaft, when the seal box 1 is installed, the hydraulic cylinder can be sealed by the rubber seal ring 6, the first rubber seal block 312 and the second rubber seal block 5, and oil leakage occurs when the piston rod moves, after a period of use, after the contact surfaces of the rubber seal ring 6, the first rubber seal block 312 and the second rubber seal block 5 with the piston rod are worn, hydraulic oil flows out from the worn part, and when the situation occurs, a worker can rotate the knob 31 to drive the worm 34 to rotate, the worm 34 drives the transmission rack 38 to move by engaging the worm wheel 37, and then the transmission rack 38 drives the first rubber seal block 312 to extrude the piston rod through the sliding rod 310, so that the contact surface is tightened again, and simultaneously operate the second adjusting mechanism 4 according to the rotating radian of the first adjusting mechanism 3, and further enable the second rubber seal block 5 to approach the piston rod, therefore, the effect of resealing can be achieved without replacing the sealing sheet, and the effect of saving cost is realized.

Example 2

As shown in fig. 1 and 4, based on the same concept as that of embodiment 1, the present embodiment further proposes that the connection mechanism 7 includes a connection pipe 71, a mounting plate 72, a mounting hole 73, and a connection thread 74, the connection thread 74 is disposed in an inner cavity of the connection pipe 71, the mounting plate 72 is fixedly connected to a lower portion of an outer surface of the connection pipe 71, an upper end surface of the connection pipe 71 is fixedly connected to the seal box 1, and the mounting hole 73 is disposed on an upper end surface of the mounting plate 72.

In this embodiment, since the mounting plate 72 is fixedly connected to the lower portion of the outer surface of the connecting pipe 71, during operation, the connecting pipe 71 is rotated first and fixed to the hydraulic cylinder through the connecting thread 74, and after the connecting pipe 71 is rotated to the lowest position, the mounting bolt passes through the mounting hole 73 to fixedly connect the mounting plate 72 to the hydraulic cylinder, so as to install the seal box 1 in the hydraulic cylinder.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a leak protection sealing member for hydraulic machinery, includes seal box (1), its characterized in that, seal box (1) up end middle part is provided with slip chamber (2), slip chamber (2) inner chamber lower part joint has rubber seal ring (6), the terminal surface is provided with coupling mechanism (7) under seal box (1), slip chamber (2) both sides are provided with first adjustment mechanism (3) and second adjustment mechanism (4) respectively, second adjustment mechanism (4) one end fixedly connected with second rubber seal piece (5).

2. The leak-proof sealing member for the hydraulic machine is characterized in that the first adjusting mechanism (3) comprises a knob (31), an indicating block (32), scale marks (33), a worm (34), a left thread (35), a right thread (36), a worm wheel (37), a transmission rack (38), a sliding plate (39), a sliding rod (310), an extrusion spring (311) and a first rubber sealing block (312), wherein the indicating block (32) is fixedly connected to one end of the knob (31), the scale marks (33) are slidably connected to one side of the indicating block (32), and the worm (34) is fixedly connected to one side of the indicating block (32).

3. The leak-proof sealing member for the hydraulic machine is characterized in that a left thread (35) and a right thread (36) are fixedly connected to two ends of the outer surface of the worm (34), a worm wheel (37) is meshed on one side of the outer surface of the worm (34), a transmission rack (38) is meshed on the outer surface of the worm wheel (37) through teeth, a sliding plate (39) is fixedly connected to one side of the transmission rack (38), a first rubber sealing block (312) is connected to one side of the sliding plate (39) through a sliding rod (310) in a sliding mode, and an extrusion spring (311) is arranged on the outer surface of the sliding rod (310).

4. The leak-proof sealing member for the hydraulic machine according to claim 3, wherein two ends of the extrusion spring (311) are respectively fixedly connected with the sliding plate (39) and the first rubber sealing block (312), one side of the knob (31) is rotatably connected with the sealing box (1) through a rotating shaft, two ends of the worm (34) are rotatably connected with the sealing box (1), a lower end face of one side of the worm wheel (37) is rotatably connected with the sealing box (1), an inner cavity of the sealing box (1) is connected with the transmission rack (38), the sliding plate (39) and the first rubber sealing block (312), and one side of the sealing box (1) is provided with a scale mark (33).

5. The leak-proof sealing member for the hydraulic machine according to claim 4, wherein a knob (31), an indication block (32), a scale mark (33), a worm (34), a left thread (35), a right thread (36), a worm wheel (37), a transmission rack (38), a sliding plate (39), a sliding rod (310), an extrusion spring (311) and a first rubber sealing block (312) are sequentially installed on one side of the second adjusting mechanism (4) according to the installation mode of the first adjusting mechanism (3).

6. The leak-proof sealing member for the hydraulic machine according to claim 5, wherein two sides of the second rubber sealing block (5) are slidably connected with an inner cavity of the sealing box (1), the first rubber sealing block (312), the second rubber sealing block (5) and the rubber sealing ring (6) are filled with nitrile rubber, and one side of the first rubber sealing block (312) is slidably connected with the second rubber sealing block (5).

7. The leakproof seal for hydraulic machines according to claim 6, wherein the connecting mechanism (7) comprises a connecting pipe (71), a mounting plate (72), a mounting hole (73) and a connecting thread (74), the connecting thread (74) is arranged in the inner cavity of the connecting pipe (71), and the mounting plate (72) is fixedly connected to the lower part of the outer surface of the connecting pipe (71).

8. The leak-proof seal for hydraulic machines according to claim 7, characterized in that the upper end face of the connecting pipe (71) is fixedly connected with the seal box (1), and the upper end face of the mounting plate (72) is provided with a mounting hole (73).