Jaw breaking hydraulic system

Abstract

The utility model discloses a jaw breaking hydraulic system which comprises a first shell, the first shell is connected with a second shell through a connecting pipeline, a hydraulic oil tank is arranged on the lower portion of the first shell, a liquid level sensor and a hydraulic pump are arranged on the top of an inner cavity of the hydraulic oil tank respectively, and an accessory box body is arranged on the upper portion of the first shell. According to the jaw breaking hydraulic system, the pressure sensor, the hydraulic valve block, the motor, the hydraulic oil tank, the liquid level sensor and the hydraulic pump are arranged, so that it is conveniently guaranteed that when a jaw of a jaw crusher encounters an object which cannot be crushed, a toggle plate cannot be broken or the jaw crusher cannot be damaged; according to the hydraulic system, the piston rod of the oil cylinder is forced to extend out, the end part of the piston rod supports the toggle plate through the sliding shoe, the inside of the first shell is conveniently overhauled by arranging the overhauling door lock and the overhauling door, and when the jaw crusher encounters extremely hard foreign matters, the pressure of the machine is relieved through hydraulic unloading, so that the machine is prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of mining machinery, in particular to a jaw crusher hydraulic system. Background Art

[0002] Jaw crushers mainly use extrusion, grinding, and other methods to crush materials. When the materials are mixed with extremely hard foreign objects, it is easy to cause damage to the machine, such as the jaw crusher used for steel slag crushing. Therefore, the jaw crusher requires a jaw crusher hydraulic system to protect the machine itself. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a jaw crusher hydraulic system, which can relieve the pressure of the machine through hydraulic unloading when encountering extremely hard foreign objects, thereby preventing the machine from being damaged, and can effectively solve the problems in the background technology.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A jaw crusher hydraulic system includes a first shell, which is connected to a second shell via a connecting pipe. The lower part of the first shell is a hydraulic oil tank, and the top of the inner cavity of the hydraulic oil tank is respectively provided with a liquid level sensor and a hydraulic pump. The upper part of the first shell is an accessory box, and a hydraulic valve block and a motor are respectively provided in the accessory box. The top of the hydraulic valve block is connected to a junction box, and the hydraulic pump is installed at the bottom of the motor. An inspection door is hinged at the opening on the front side of the accessory box, and an inspection door lock is installed on the inspection door. The lower part of the second shell is provided with a temperature sensor, and the upper part of the second shell is provided with a pressure sensor.

[0006] As a preferred technical solution of the present invention, the sides of the first shell and the second shell are both provided with a plurality of fixed interfaces for plugging and connecting pipes.

[0007] As a preferred technical solution of the present invention, an inspection cover is installed at the inspection port on the side of the hydraulic oil tank.

[0008] As a preferred technical solution of the present invention, a hydraulic oil hole is provided on the rear side of the inspection cover.

[0009] As a preferred technical solution of the present invention, two L-shaped support bases are symmetrically provided at the bottom of the first shell, and a mounting hole is provided at each end of each L-shaped support base.

[0010] As a preferred technical solution of the present invention, a hanging hook is provided on the top of the second shell.

[0011] As a preferred technical solution of the present invention, a take-and-place groove is respectively provided at a position near the top edge on both side surfaces of the first shell.

[0012] As a preferred technical solution of the present invention, a plurality of heat dissipation channels are provided on the upper portions of the two side surfaces of the first shell, and an air guide cover is provided at each heat dissipation channel.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] By setting up pressure sensors, temperature sensors, hydraulic valve blocks, motors, hydraulic oil tanks, liquid level sensors and hydraulic pumps, it is easy to ensure that the jaws of the jaw crusher will not cause the toggle plate to break or damage the machine itself when encountering uncrushable objects. The high-pressure oil provided by the hydraulic system enters the rodless chamber of the cylinder, forcing the cylinder piston rod to extend. The end of the piston rod supports the toggle plate through the sliding shoe. The maintenance door lock and maintenance door are set to facilitate maintenance of the interior of the first shell. When the jaw crusher encounters extremely hard foreign objects, this hydraulic system relieves the pressure of the machine through hydraulic unloading, thereby preventing the machine from being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of the utility model.

[0016] Figure 2 This is a schematic diagram of the external structure of the second shell of the present utility model.

[0017] Figure 3 This is a schematic diagram of the external structure of the first shell of the utility model.

[0018] Figure 4 This is a schematic diagram of the internal structure of the first shell of the present utility model.

[0019] Figure 5 This is a schematic diagram of the internal structure of the second shell of the present invention.

[0020] In the figure: first shell 1, inspection door lock 2, inspection door 3, connecting pipe 4, lifting hook 5, second shell 6, fixing interface 7, pick-up and drop groove 8, air guide cover 9, inspection cover 10, pressure sensor 11, temperature sensor 12, hydraulic oil hole 13, hydraulic valve block 14, motor 15, junction box 16, hydraulic oil tank 17, liquid level sensor 18, hydraulic pump 19, L-shaped support base 20, mounting hole 21. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-5 , the utility model provides a technical solution:

[0023] A jaw crusher hydraulic system includes a first shell 1, which is connected to a second shell 6 through a connecting pipe 4. The lower part of the first shell 1 is a hydraulic oil tank 17, and the top of the inner cavity of the hydraulic oil tank 17 is respectively provided with a liquid level sensor 18 and a hydraulic pump 19. The upper part of the first shell 1 is an accessory box, and the accessory box is respectively provided with a hydraulic valve block 14 and a motor 15. The top of the hydraulic valve block 14 is connected to a junction box 16, and the hydraulic pump 19 is installed at the bottom of the motor 15. An inspection door 3 is hinged at the opening on the front side of the accessory box, and an inspection door lock 2 is installed on the inspection door 3. A temperature sensor 12 is provided at the lower part of the second shell 6, and a pressure sensor 11 is provided at the upper part of the second shell 6.

[0024] The side surfaces of the first shell 1 and the second shell 6 are both provided with a plurality of fixing interfaces 7 for plugging in the connecting pipes 4 .

[0025] An inspection cover 10 is installed at the inspection port on the side of the hydraulic oil tank 17, and the inspection cover 10 facilitates inspection of the interior of the hydraulic oil tank 17.

[0026] A hydraulic oil hole 13 is provided on the rear side of the inspection cover 10 , through which an external hydraulic oil pipeline can be easily connected.

[0027] Two L-shaped support bases 20 are symmetrically provided at the bottom of the first shell 1 . Each L-shaped support base 20 has a mounting hole 21 at both ends. The first shell 1 can be easily installed and fixed through the L-shaped support base 20 and the mounting hole 21 .

[0028] A lifting hook 5 is provided on the top of the second shell 6 , and the lifting hook 5 is used to facilitate lifting of the second shell 6 .

[0029] A take-and-place slot 8 is respectively provided at a position near the top edge of each side surface of the first housing 1 , and the first housing 1 is easily moved through the two take-and-place slots 8 .

[0030] A plurality of heat dissipation channels are provided on the upper part of both sides of the second shell 6 , and each heat dissipation channel is provided with an air guide 9 , which assists the heat dissipation inside the first shell 1 through the heat dissipation channels, and the air guide 9 can prevent water droplets from entering the first shell 1 .

[0031] This jaw crusher hydraulic system is a hydraulic support device and a dedicated hydraulic station for jaw crushers with overload protection. When the jaws of the jaw crusher encounter unbreakable material, the load is relieved automatically without damaging the machine itself via a hydraulic unloading device and buffer device consisting of a pressure sensor 11, a temperature sensor 12, a hydraulic valve block 14, a motor 15, a hydraulic oil tank 17, a level sensor 18, and a hydraulic pump 19. High-pressure oil supplied by the hydraulic station enters the rodless chamber of the cylinder, forcing the piston rod to extend. The end of the piston rod, supported by a sliding shoe, supports the toggle plate. During normal crushing operation, if unbreakable material is encountered, the cylinder oil pressure may rise momentarily, exceeding the device's set pressure. The hydraulic station's pressure controller immediately signals the hydraulic circuit to rapidly unload the pressure. After the cylinder is unloaded, the movable jaw, under its own weight and spring action, opens the discharge port to discharge the unbreakable material, a condition known as iron overload. After iron overload, the PLC issues a command at a set time to re-inject pressurized oil into the cylinder, returning the movable jaw to its normal position and resuming normal operation.

[0032] This hydraulic system is electrically connected to an external PLC controller. The pressure sensor 11, temperature sensor 12, hydraulic valve block 14, motor 15, liquid level sensor 18, and hydraulic pump 19 are all electrically connected to the PLC controller. The electrical connection relationship is a common means in the prior art. The pressure sensor 11, temperature sensor 12, hydraulic valve block 14, motor 15, liquid level sensor 18, and hydraulic pump 19 are all commonly used models on the market with the PLC controller.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A jaw crusher hydraulic system, comprising a first housing (1), wherein the first housing (1) is connected to a second housing (6) via a connecting pipe (4), and characterized in that: The lower part of the first shell (1) is a hydraulic oil tank (17), and the top of the inner cavity of the hydraulic oil tank (17) is respectively provided with a liquid level sensor (18) and a hydraulic pump (19). The upper part of the first shell (1) is an accessory box, and the accessory box is respectively provided with a hydraulic valve block (14) and a motor (15). The top of the hydraulic valve block (14) is connected to a junction box (16), and the hydraulic pump (19) is installed at the bottom of the motor (15). An inspection door (3) is hinged at the opening on the front side of the accessory box, and an inspection door lock (2) is installed on the inspection door (3). The lower part of the second shell (6) is provided with a temperature sensor (12), and the upper part of the second shell (6) is provided with a pressure sensor (11).

2. The jaw crusher hydraulic system according to claim 1, characterized in that: The sides of the first shell (1) and the second shell (6) are both provided with a plurality of fixed interfaces (7) for plugging in the connecting pipes (4).

3. The jaw crusher hydraulic system according to claim 1, characterized in that: An inspection cover (10) is installed at the inspection opening on the side of the hydraulic oil tank (17).

4. The jaw crusher hydraulic system according to claim 3, characterized in that: A hydraulic oil hole (13) is provided on the rear side of the inspection cover (10).

5. The jaw crusher hydraulic system according to claim 1, characterized in that: Two L-shaped support bases (20) are symmetrically provided at the bottom of the first shell (1), and a mounting hole (21) is provided at each end of each L-shaped support base (20).

6. The jaw crusher hydraulic system according to claim 1, characterized in that: A hanging hook (5) is provided on the top of the second shell (6).

7. The jaw crusher hydraulic system according to claim 1, characterized in that: A pick-and-place slot (8) is provided on each of the two side surfaces of the first shell (1) near the top edge.

8. The jaw crusher hydraulic system according to claim 1, characterized in that: A plurality of heat dissipation channels are provided on the upper portions of the two side surfaces of the first shell (1), and each heat dissipation channel is provided with an air guide cover (9).

Images