An injection cylinder assembly with a composite brake structure

Abstract

The utility model discloses an injection oil cylinder assembly with a composite brake structure, including an injection stand, a pull rod and an injection oil cylinder assembly, wherein the injection oil cylinder assembly is composed of an injection oil cylinder sleeve, an injection oil cylinder front cover, an injection oil cylinder rear cover, an injection oil cylinder piston rod, an injection oil cylinder piston, a pulley shaft and a transmission shaft. The beneficial effects of the utility model are: 1. It adopts a mechanical and hydraulic composite brake structure, and uses two different deceleration methods at the same time to control the moving speed of the injection oil cylinder piston, so that the injection oil cylinder rod can better achieve the required deceleration effect, and effectively avoid the situation where the hydraulic system fails and the brake is invalid, resulting in equipment damage. 2. The injection oil cylinder piston provides oil to the oil inlet through the hydraulic system to drive the injection oil cylinder piston to move. When the injection oil cylinder piston moves to the oil outlet, it will gradually block the oil outlet to reduce its flow rate, thereby achieving the effect of mechanical deceleration.

Description

Technical field:

[0001] The utility model relates to the technical field of aluminum-magnesium alloy injection equipment, in particular to an injection oil cylinder component with a composite brake structure. Background technology:

[0002] At present, the hydraulic power of the injection cylinder of the die-casting machine is set at one end of the injection cylinder piston, which is consistent with its axial direction. This structure relies solely on the flow provided by the hydraulic system to control the moving speed of the injection piston rod, so the deceleration effect of the injection piston rod is not good, the deceleration form is relatively simple, and once the hydraulic system fails, it cannot effectively protect the parts in the injection cylinder. Summary of the invention:

[0003] The purpose of the utility model is to solve the existing problems and provide an injection oil cylinder assembly with a composite brake structure.

[0004] The technical solutions of the utility model are as follows:

[0005] A shooting cylinder assembly with a composite brake structure comprises a shooting stand, a pull rod and a shooting cylinder assembly, wherein the shooting cylinder assembly consists of a shooting cylinder sleeve, a shooting cylinder front cover, a shooting cylinder rear cover, a shooting piston rod, a shooting cylinder piston, a pulley shaft and a transmission shaft, wherein the shooting cylinder sleeve is provided with an oil inlet and an oil outlet, the shooting piston rod and the shooting cylinder piston are screwed and fixed inside the shooting cylinder sleeve, the pulley shaft and the transmission shaft sleeve are integrated and rotatably arranged in the inner cavity of the shooting piston rod and the shooting cylinder piston, and the shooting cylinder piston can gradually block the oil outlet during its movement to the left to slow down the shooting piston rod.

[0006] Preferably, one end of the pull rod is fixedly connected to the injection column, and the other end is fixedly connected to the cylinder sleeve of the injection cylinder.

[0007] Preferably, the oil outlet is arranged on the left side of the large end of the injection cylinder piston, and the oil port is arranged on the right side of the large end of the injection cylinder piston.

[0008] Preferably, bearings are installed between the transmission shaft and the injection cylinder piston and the injection piston rod respectively.

[0009] Preferably, the bearings include angular contact ball bearings and thrust spherical roller bearings.

[0010] Preferably, the diameter of the oil outlet is larger than the diameter of the oil inlet.

[0011] The beneficial effects of the utility model are:

[0012] 1. The mechanical and hydraulic composite brake structure is adopted, and two different deceleration methods are used at the same time to control the moving speed of the injection cylinder piston, so that the injection piston rod can better achieve the required deceleration effect, and effectively avoid the situation where the brake is invalid due to hydraulic system failure, resulting in equipment damage.

[0013] 2. The piston of the injection cylinder provides oil to the oil inlet through the hydraulic system to drive the piston of the injection cylinder to move. When the piston of the injection cylinder moves to the oil outlet, it will gradually block the oil outlet and reduce its flow rate, thereby achieving the effect of mechanical deceleration. Description of the drawings:

[0014] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0015] Figure 2 It is a bottom view schematic diagram of the utility model;

[0016] Figure 3 for Figure 2 AA half section diagram;

[0017] In the attached figure: 1. Shooting stand; 2. Pull rod; 3. Shooting cylinder assembly; 4. Shooting cylinder sleeve; 5. Shooting cylinder front cover; 6. Shooting cylinder rear cover; 7. Shooting piston rod; 8. Shooting cylinder piston; 9. Pulley shaft; 10. Transmission shaft; 11. Oil inlet; 12. Oil outlet; 13. Angular contact ball bearing; 14. Thrust spherical roller bearing. Specific implementation method:

[0018] 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.

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0020] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] like Figure 1-3 As shown, an injection cylinder assembly with a composite brake structure includes an injection stand 1, a pull rod 2 and an injection cylinder assembly 3, wherein the injection cylinder assembly 3 is composed of an injection cylinder sleeve 4, an injection cylinder front cover 5, an injection cylinder rear cover 6, an injection piston rod 7, an injection cylinder piston 8, a pulley shaft 9 and a transmission shaft 10, wherein the injection cylinder sleeve 4 is provided with an oil inlet 11 and an oil outlet 12, the injection piston rod 7 and the injection cylinder piston 8 are screwed and fixed inside the injection cylinder sleeve 4, the pulley shaft 9 and the transmission shaft 10 are sleeved and matched as a whole, and are rotatably arranged in the inner cavity of the injection piston rod 7 and the injection cylinder piston 8, and the injection cylinder piston 8 can gradually block the oil outlet 12 during the movement to the left to slow down the injection piston rod 7.

[0022] Specifically, one end of the pull rod 2 is fixedly connected to the injection stand 1 , and the other end is fixedly connected to the injection cylinder sleeve 4 .

[0023] Specifically, the oil outlet 12 is arranged on the left side of the large end of the injection cylinder piston 8 , and the oil port is arranged on the right side of the large end of the injection cylinder piston 8 .

[0024] Specifically, bearings are installed between the transmission shaft 10 and the injection cylinder piston 8 and the injection piston rod 7 respectively.

[0025] Specifically, the bearings include an angular contact ball bearing 13 and a thrust spherical roller bearing 14 .

[0026] Specifically, the diameter of the oil outlet 12 is greater than the diameter of the oil inlet 11 .

[0027] Working principle: The injection cylinder piston 8 provides oil to the oil inlet 11 through the hydraulic system, driving the injection cylinder piston 8 to move. When the injection cylinder piston 8 moves to the oil outlet 12, it will gradually block the oil outlet 12 to reduce its flow rate, thereby achieving the effect of mechanical deceleration. At the same time, the oil inlet amount of the hydraulic system can also be controlled for hydraulic deceleration, thereby achieving a composite brake of mechanical and hydraulic.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An injection cylinder assembly with a composite brake structure, characterized in that: It includes a shooting stand, a pull rod and an injection cylinder assembly, wherein the injection cylinder assembly consists of an injection cylinder sleeve, an injection cylinder front cover, an injection cylinder rear cover, an injection piston rod, an injection cylinder piston, a pulley shaft and a transmission shaft, the injection cylinder sleeve is provided with an oil inlet and an oil outlet, the injection piston rod and the injection cylinder piston are screwed and fixed inside the injection cylinder sleeve, the pulley shaft and the transmission shaft sleeve are integrated and rotatably arranged in the inner cavity of the injection piston rod and the injection cylinder piston, and the injection cylinder piston can gradually block the oil outlet during the leftward movement to slow down the injection piston rod.

2. The injection cylinder assembly with a composite brake structure according to claim 1, characterized in that: One end of the pull rod is fixedly connected to the injection column, and the other end is fixedly connected to the cylinder sleeve of the injection oil cylinder.

3. The injection cylinder assembly with a composite brake structure according to claim 1, characterized in that: The oil outlet is arranged on the left side of the large end of the injection cylinder piston, and the oil port is arranged on the right side of the large end of the injection cylinder piston.

4. The injection cylinder assembly with a composite brake structure according to claim 1, characterized in that: Bearings are respectively installed between the transmission shaft and the injection oil cylinder piston and the injection piston rod.

5. The injection cylinder assembly with a composite brake structure according to claim 4, characterized in that: The bearings include angular contact ball bearings and thrust spherical roller bearings.

6. The injection cylinder assembly with a composite brake structure according to claim 1, characterized in that: The diameter of the oil outlet is greater than the diameter of the oil inlet.

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