Integrated hydraulic cylinder

Abstract

The utility model relates to an integrated hydraulic cylinder, which belongs to the technical field of hydraulic cylinders and comprises a hydraulic cylinder body, an assembly hole is arranged at the cylinder bottom of the hydraulic cylinder body, counter bores are arranged at the upper end and the lower end of the assembly hole, a valve body is arranged in an inner cavity of the assembly hole, and a positioning mechanism for conveniently positioning the valve body is arranged in an inner cavity of each counter bore. The positioning mechanism comprises a movable plate, two positioning rods, two first screws, two driving bevel gears, two driven bevel gears, two driving rods, two moving plates and four inserting rods, and the movable plate is arranged in an inner cavity of the counter bore. According to the integrated hydraulic cylinder, the hydraulic cylinder body and the plunger motor are directly connected through the internal oil way, no external pipeline is needed, therefore, the system structure is simplified, the complexity and maintenance cost of the system are reduced, the two ends of the valve body can be positioned through the arranged positioning mechanism, and workers can conveniently mount and dismount the valve body.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic cylinders, in particular to an integrated hydraulic cylinder. 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 using it to achieve reciprocating motion, the deceleration 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.

[0003] Hydraulic cylinders and plunger motors are important hydraulic transmission components and are widely used in various types of engineering machinery, mining machinery and other equipment. At present, hydraulic cylinders and plunger motors are usually used as independent power units, and power transmission and control are achieved through complex pipeline connections. However, this discrete layout not only increases the complexity and maintenance cost of the system, but also limits the further improvement of the overall performance of the system. In the prior art, the discrete design of hydraulic cylinders and plunger motors leads to a large system size, high energy consumption and low efficiency, and complex control, which is not conducive to achieving the development trend of compactness and intelligence. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides an integrated hydraulic cylinder with the advantages of low system complexity and low maintenance cost. It solves the problem that the discrete design of the hydraulic cylinder and the plunger motor leads to a large system size, high energy consumption and low efficiency, and complex control, which is not conducive to achieving the development trend of compactness and intelligence.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an integrated hydraulic cylinder, comprising a hydraulic cylinder body, a mounting hole is provided at the cylinder bottom of the hydraulic cylinder body, countersunk holes are provided at both the upper and lower ends of the mounting hole, a valve body is provided in the inner cavity of the mounting hole, and a positioning mechanism for facilitating the positioning of the valve body is provided in the inner cavity of the countersunk hole;

[0006] The positioning mechanism includes a movable plate, two positioning rods, two No. 1 screws, two active bevel gears, two driven bevel gears, two driving rods, two movable plates and four insertion rods. The movable plate is arranged in the inner cavity of the countersunk hole, the two positioning rods are fixed at the left and right ends of the movable plate facing the valve body, the two No. 1 screws are rotatably connected between the opposite sides of the left and right side walls of the inner cavity at the left and right ends of the movable plate through bearings, the driven bevel gear is fixed on the outer surface of the No. 1 screw, the active bevel gear is meshed with the driven bevel gear, the driving rod is fixed in the inner cavity of the active bevel gear, the No. 1 screw is threadedly connected to the movable plate, and the four insertion rods are fixed at the upper and lower ends between the opposite sides of the two movable plates.

[0007] By adopting this technical solution, the provided positioning mechanism can position both ends of the valve body, making it convenient for workers to install and disassemble the valve body.

[0008] Furthermore, the hydraulic cylinder body is connected to the plunger motor via an internal oil circuit, and an oil inlet and an oil outlet communicated with the valve body are provided at the cylinder bottom of the hydraulic cylinder body.

[0009] By adopting this technical solution, the hydraulic cylinder body and the plunger motor are directly connected through an internal oil circuit, without the need for external pipelines, thereby simplifying the system structure and reducing the complexity and maintenance cost of the system.

[0010] Furthermore, positioning grooves are provided at the left and right ends of the countersunk holes at the upper and lower ends on the opposite sides, and the inner diameter of the positioning groove is matched with the outer diameter of the positioning rod.

[0011] By adopting this technical solution, it is convenient to quickly position the movable plate.

[0012] Furthermore, the size of the movable plate is adapted to the size of the inner cavity of the counterbore, and the side of the driving rod away from the active bevel gear penetrates the movable plate and extends to the outside of the movable plate.

[0013] By adopting this technical solution, it is convenient for workers to drive the active bevel gear to rotate through the driving rod.

[0014] Furthermore, a slide bar is fixed on one side of the inner top wall and the inner bottom wall of the movable plate, and the top and the bottom of the movable plate perform horizontal linear motion in the inner cavity of the slide bar.

[0015] By adopting this technical solution, the movement of the movable plate can be limited by the provided sliding bar.

[0016] Furthermore, slots are provided at the upper and lower ends of the opposite sides of the left and right side walls of the inner cavity of the countersunk hole, the inner diameter of the slots is adapted to the outer diameter of the insertion rod, and through holes adapted to the outer diameter of the insertion rod are provided on the left and right sides of the movable plate.

[0017] By adopting this technical solution, the movable plate can be fixed in the inner cavity of the countersunk hole to prevent affecting the operation of the hydraulic cylinder body.

[0018] Furthermore, mounting blocks are fixed to the left and right ends of the movable plates on the opposite sides of the upper and lower ends, and one side of the mounting block is threadedly connected to a No. 2 screw with one end penetrating through and extending to the other side.

[0019] Furthermore, the outer surface of the driving rod is provided with four through holes, and the No. 2 screw rod is threadedly connected to the four through holes.

[0020] By adopting this technical solution, the purpose of limiting the driving rod is achieved by rotating the No. 2 screw to make it enter the four-through hole.

[0021] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0022] The integrated hydraulic cylinder directly connects the hydraulic cylinder body and the plunger motor through an internal oil circuit without the need for external pipelines, thereby simplifying the system structure, reducing the complexity and maintenance cost of the system, and positioning the two ends of the valve body through a positioning mechanism, making it easy for workers to install and disassemble the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the positioning mechanism structure of the utility model;

[0025] Figure 3 It is a schematic diagram of the structure of part of the positioning mechanism of the utility model.

[0026] In the figure: 1. hydraulic cylinder body; 2. assembly hole; 3. countersunk hole; 4. valve body; 5. positioning mechanism; 51. movable plate; 52. positioning rod; 53. No. 1 screw; 54. active bevel gear; 55. driven bevel gear; 56. driving rod; 57. movable plate; 58. insertion rod. DETAILED DESCRIPTION

[0027] 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.

[0028] See also Figure 1 An integrated hydraulic cylinder in this embodiment includes a hydraulic cylinder body 1, a mounting hole 2 is provided at the bottom of the hydraulic cylinder body 1, countersunk holes 3 are provided at the upper and lower ends of the mounting hole 2, a valve body 4 is provided in the inner cavity of the mounting hole 2, and a positioning mechanism 5 for facilitating the positioning of the valve body 4 is provided in the inner cavity of the countersunk hole 3.

[0029] In this embodiment, the hydraulic cylinder body 1 is connected to the plunger motor via an internal oil circuit, and an oil inlet and an oil outlet communicating with the valve body 4 are provided at the cylinder bottom of the hydraulic cylinder body 1 .

[0030] It should be noted that the integrated hydraulic cylinder also includes an integrated control module, which is used to accurately control the hydraulic cylinder body 1 and the plunger motor to achieve smooth switching and efficient use of power. By real-time monitoring of the working status and adjusting the control strategy, the stability and energy-saving effect of the system are further improved. The electrical components appearing in the text are all electrically connected to the main controller and the power supply, and the electrical components appearing in the text are all conventionally known devices. The control circuit of the main controller can be implemented by simple programming by technicians in this field.

[0031] It can be understood that by directly connecting the hydraulic cylinder body 1 and the plunger motor through an internal oil circuit, no external pipeline is required, thereby simplifying the system structure and reducing the complexity and maintenance cost of the system.

[0032] See also Figure 2-3 In order to fix the valve body 4, the positioning mechanism 5 in this embodiment includes a movable plate 51, two positioning rods 52, two No. 1 screws 53, two active bevel gears 54, two driven bevel gears 55, two driving rods 56, two movable plates 57 and four plug rods 58. The movable plate 51 is arranged in the inner cavity of the countersunk hole 3, and the two positioning rods 52 are fixed to the left and right ends of the movable plate 51 facing the valve body 4. The movable plate 51 is placed in the inner cavity of the countersunk hole 3, and then moved downward so that the movable plate 51 fits with the valve body 4, and the positioning rods 52 enter the inner cavity of the positioning groove, so that the movable plate 51 can be quickly positioned. The two No. 1 screws 53 rotate through the bearings. The driven bevel gear 55 is fixed on the outer surface of the No. 1 screw rod 53, and the driving bevel gear 54 is meshingly connected with the driven bevel gear 55. The driving rod 56 is fixed in the inner cavity of the driving bevel gear 54. The two driving rods 56 are rotated. The rotation of the driving rod 56 drives the driving bevel gear 54 to rotate. The rotation of the driving bevel gear 54 causes the driven bevel gear 55 meshingly connected therewith to rotate. The rotation of the driven bevel gear 55 drives the No. 1 screw rod 53 to rotate. The No. 1 screw rod 53 is threadedly connected to the movable plate 57. Four plug rods 58 are fixed at the upper and lower ends between the opposite sides of the two movable plates 57.

[0033] In this embodiment, positioning grooves are provided at the left and right ends of the countersunk holes 3 at the upper and lower ends, the inner diameter of the positioning groove is adapted to the outer diameter of the positioning rod 52, the size of the movable plate 51 is adapted to the size of the inner cavity of the countersunk hole 3, and the driving rod 56 penetrates the movable plate 51 on the side away from the active bevel gear 54 and extends to the outside of the movable plate 51.

[0034] Among them, sliding bars are fixed on the side opposite to the inner top wall and the inner bottom wall of the movable plate 51, and the top and bottom of the movable plate 57 both make horizontal linear motion in the inner cavity of the sliding bar. Slots are provided at the upper and lower ends of the opposite sides of the left and right side walls of the inner cavity of the countersunk hole 3, and the inner diameter of the slot is adapted to the outer diameter of the plug rod 58. Through holes adapted to the outer diameter of the plug rod 58 are provided on the left and right sides of the movable plate 51. The rotation of the No. 1 screw 53 moves the movable plate 57, and the movement of the movable plate 57 drives the two plug rods 58 to move until the plug rods 58 enter the inner cavity of the slot, thereby positioning the two ends of the valve body 4.

[0035] In addition, mounting blocks are fixed on the left and right ends of the opposite sides of the movable plates 51 at the upper and lower ends. One side of the mounting block is threadedly connected to a No. 2 screw rod with one end passing through and extending to the other side. Four through holes are provided on the outer surface of the driving rod 56. The No. 2 screw rod is threadedly connected to the four through holes. The No. 2 screw rod is rotated so that it is screwed into the inner cavity of the driving rod 56, thereby limiting the position of the driving rod 56.

[0036] The working principle of the above embodiment is:

[0037] By arranging that the hydraulic cylinder body 1 is directly connected to the plunger motor through the internal oil circuit, no external pipeline is required, thereby simplifying the system structure, reducing the complexity and maintenance cost of the system; when positioning the valve body 4, firstly put the movable plate 51 into the inner cavity of the counterbore 3, and then move it downward so that the movable plate 51 fits with the valve body 4, and make the positioning rod 52 enter the inner cavity of the positioning groove, so that the movable plate 51 can be quickly positioned, and then the two driving rods 56 are rotated, and the rotation of the driving rod 56 drives the active bevel gear 54 to rotate, and the rotation of the active bevel gear 54 causes it to rotate with the other driving rods 56. The meshing driven bevel gear 55 rotates, and the rotation of the driven bevel gear 55 drives the No. 1 screw 53 to rotate. The rotation of the No. 1 screw 53 causes the movable plate 57 to move. At this time, the top and bottom of the movable plate 57 both move in the inner cavity of the limit strip, and the movement of the movable plate 57 can be limited. The movement of the movable plate 57 drives the two plug rods 58 to move until the plug rods 58 enter the inner cavity of the slot, and then the No. 2 screw is rotated so that the No. 2 screw is screwed into the inner cavity of the drive rod 56, which can limit the drive rod 56, so that the two ends of the valve body 4 can be positioned.

Claims

1. An integrated hydraulic cylinder, comprising a hydraulic cylinder body (1), characterized in that: The bottom of the hydraulic cylinder body (1) is provided with an assembly hole (2), the upper and lower ends of the assembly hole (2) are provided with countersunk holes (3), the inner cavity of the assembly hole (2) is provided with a valve body (4), and the inner cavity of the countersunk hole (3) is provided with a positioning mechanism (5) for facilitating the positioning of the valve body (4); The positioning mechanism (5) comprises a movable plate (51), two positioning rods (52), two No. 1 screws (53), two active bevel gears (54), two driven bevel gears (55), two driving rods (56), two movable plates (57) and four insertion rods (58), wherein the movable plate (51) is arranged in the inner cavity of the counterbore (3), the two positioning rods (52) are fixed to the left and right ends of the movable plate (51) facing the valve body (4), and the two No. 1 screws (53) are rotated by bearings. The driven bevel gear (55) is fixed to the outer surface of the No. 1 screw rod (53), the driving bevel gear (54) is meshingly connected with the driven bevel gear (55), the driving rod (56) is fixed to the inner cavity of the driving bevel gear (54), the No. 1 screw rod (53) is threadedly connected to the movable plate (57), and the four insertion rods (58) are fixed to the upper and lower ends between the opposite sides of the two movable plates (57).

2. An integrated hydraulic cylinder according to claim 1, characterized in that: The hydraulic cylinder body (1) is connected to the plunger motor via an internal oil circuit, and an oil inlet and an oil outlet communicating with the valve body (4) are provided at the bottom of the hydraulic cylinder body (1).

3. The integrated hydraulic cylinder according to claim 1, characterized in that: Positioning grooves are provided at the left and right ends of the countersunk holes (3) at the upper and lower ends, and the inner diameter of the positioning grooves matches the outer diameter of the positioning rod (52).

4. The integrated hydraulic cylinder according to claim 1, characterized in that: The size of the movable plate (51) matches the size of the inner cavity of the counterbore (3), and the side of the driving rod (56) away from the active bevel gear (54) penetrates the movable plate (51) and extends to the outside of the movable plate (51).

5. The integrated hydraulic cylinder according to claim 1, characterized in that: A slide bar is fixed on the side of the inner top wall and the inner bottom wall of the movable plate (51), and the top and bottom of the movable plate (57) both perform horizontal linear motion in the inner cavity of the slide bar.

6. The integrated hydraulic cylinder according to claim 1, characterized in that: Slots are provided at the upper and lower ends of the opposite sides of the left and right side walls of the inner cavity of the countersunk hole (3), the inner diameter of the slots being compatible with the outer diameter of the insertion rod (58), and through holes are provided on the left and right sides of the movable plate (51) being compatible with the outer diameter of the insertion rod (58).

7. The integrated hydraulic cylinder according to claim 1, characterized in that: Mounting blocks are fixed to the left and right ends of the movable plates (51) on the opposite sides of the upper and lower ends. One side of the mounting block is threadedly connected to a No. 2 screw rod with one end penetrating through and extending to the other side.

8. The integrated hydraulic cylinder according to claim 7, characterized in that: The outer surface of the driving rod (56) is provided with four through holes, and the No. 2 screw rod is threadedly connected to the four through holes.

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