Multifunctional breaking main engine testing device

Abstract

A multifunctional crushing host test device, including a function valve table one suitable for the function of a jaw crusher host, a function valve table two suitable for the function of a cone crusher host and a function valve table three for adjusting the position of the motor, the function valve table one and the function valve table three are used in combination, the jaw crusher model can be verified; the function valve table two and the function valve table three are used in combination, the cone crusher can be tested on the bench, and the function is verified; the multifunctional crushing host test device of the application is integrated with different types of host drive and control system, integrates the hydraulic control device, has small floor area and is convenient to maintain; the function reliability of product design can be quickly verified, and early failures of internal mechanical transmission gears and other components of the host can be eliminated, so that the production time and manufacturing cost are greatly shortened.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of engineering machinery, in particular to a multifunctional crushing host test device. BACKGROUND

[0002] With the development of society and the requirement of environmental protection, the demand for machine-made sand is increasing year by year. In order to obtain sand and gravel aggregates with different particle sizes, different types of crushing machines have appeared in the crushing machine industry, such as jaw crusher, cone crusher, vertical shaft crusher, and impact crusher series products. At present, the main machine is mainly controlled by the hydraulic system. In the development process of the new crusher, if the main machine is not tested on the test bench, the design function and assembly quality cannot be verified in time. Only after the complete machine is assembled, the complete machine test can be carried out. At this time, if the main machine function is out of order or there is a problem with the assembly quality, the crushing host needs to be removed and then the problem needs to be found. The operation time is very lagging, which seriously affects the progress of product development and has high cost. SUMMARY

[0003] The technical problem to be solved by the present application is to overcome the shortcomings of the prior art and provide a multifunctional crushing host test device with simple structure and good effect.

[0004] The present application is realized by the following technical scheme: a multifunctional crushing host test device, comprising a function valve table one suitable for a jaw crusher host, a function valve table two suitable for a cone crusher host, and a function valve table three for adjusting the position of the motor,

[0005] The execution structure of the function valve table one includes hydraulic cylinder I, hydraulic cylinder II and hydraulic cylinder III, the rod cavity of the hydraulic cylinder I is connected to the power source through a two-position four-way electromagnetic reversing valve I, the rodless cavity of the hydraulic cylinder I is directly connected to the oil tank, the hydraulic cylinder II and the hydraulic cylinder III are connected to the power source and the oil tank through a one-way throttle valve, a hydraulic lock I and a three-position four-way electromagnetic reversing valve I;

[0006] The execution structure of the function valve table two includes hydraulic cylinder IV, hydraulic cylinder V and hydraulic motor, the rodless cavity of the hydraulic cylinder IV is connected to the power source through a two-position four-way electromagnetic reversing valve II, the hydraulic cylinder V is connected to the power source and the oil tank through a three-position four-way electromagnetic reversing valve II, a hydraulic control check valve is arranged between the rod cavity and the rodless cavity of the hydraulic cylinder V, and the hydraulic motor is connected to the power source and the oil tank through a shuttle valve and a three-position four-way electromagnetic reversing valve III;

[0007] The execution structure of the functional valve table three includes hydraulic cylinder Ⅵ, hydraulic cylinder Ⅶ, hydraulic cylinder Ⅷ, hydraulic cylinder Ⅸ, hydraulic cylinder Ⅹ, hydraulic cylinder ⅩⅠ and hydraulic cylinder ⅩⅡ, the hydraulic cylinder Ⅵ and the hydraulic cylinder Ⅶ are connected with the power source and the oil tank through the one-way throttle valve and the three-position four-way electromagnetic reversing valve Ⅵ, the hydraulic cylinder Ⅷ is connected with the power source and the oil tank through the one-way throttle valve, the hydraulic lock Ⅲ and the three-position four-way electromagnetic reversing valve Ⅴ, the hydraulic cylinder Ⅸ, the hydraulic cylinder Ⅹ, the hydraulic cylinder ⅩⅠ and the hydraulic cylinder ⅩⅡ are connected with the power source and the oil tank through the one-way throttle valve, the hydraulic lock Ⅱ and the three-position four-way electromagnetic reversing valve Ⅳ.

[0008] Further, the oil inlet end of the two-position four-way electromagnetic reversing valve Ⅰ is connected with the power source P2 through the pressure reducing valve Ⅱ, and the oil outlet end of the two-position four-way electromagnetic reversing valve Ⅰ is connected with the rod cavity of the hydraulic cylinder Ⅰ through the one-way valve Ⅰ and the throttle valve.

[0009] The oil circuit between the hydraulic cylinder Ⅰ and the throttle valve is connected in parallel with the pressure switch Ⅰ, the overflow valve Ⅰ, the stop ball valve Ⅰ and the electromagnetic unloading valve Ⅰ.

[0010] The oil inlet end of the three-position four-way electromagnetic reversing valve Ⅰ is connected with the power source P1 through the pressure reducing valve Ⅰ, the oil outlet end of the pressure reducing valve Ⅰ is provided with the electromagnetic valve Ⅰ connected with the oil tank, and the rod cavity and the rodless cavity of the hydraulic cylinder Ⅱ and the hydraulic cylinder Ⅲ are connected with the two ends of the hydraulic lock Ⅰ through the one-way throttle valve Ⅰ and the one-way throttle valve Ⅱ respectively.

[0011] The oil inlet end of the two-position four-way electromagnetic reversing valve Ⅱ is connected with the power source P2 through the pressure reducing valve Ⅳ, and the oil outlet end of the two-position four-way electromagnetic reversing valve Ⅱ is provided with the one-way valve Ⅱ.

[0012] The oil outlet end of the one-way valve Ⅱ is provided with two parallel branches and a pressure switch, the electromagnetic unloading valve Ⅱ and the overflow valve Ⅳ are arranged on the parallel branch one, the electromagnetic unloading valve Ⅲ, the accumulator, the overflow valve Ⅴ and the stop ball valve Ⅲ are arranged on the parallel branch two.

[0013] The oil inlet end of the three-position four-way electromagnetic reversing valve Ⅲ and the three-position four-way electromagnetic reversing valve Ⅱ is connected with the power source P1 through the pressure reducing valve Ⅲ, and the oil outlet end of the pressure reducing valve Ⅲ is provided with the electromagnetic valve Ⅱ connected with the oil tank.

[0014] The rod cavity oil circuit of the hydraulic cylinder Ⅴ is provided with a hydraulic control one-way valve, and the control end of the hydraulic control one-way valve is connected with the rodless cavity oil circuit of the hydraulic cylinder Ⅴ.

[0015] The oil inlet end of the hydraulic control one-way valve is connected in parallel with the overflow valve Ⅲ, the oil outlet end of the hydraulic control one-way valve is connected in parallel with the pressure switch Ⅲ and the stop ball valve Ⅱ, and the pressure switch Ⅲ is further connected in series with the overflow valve Ⅱ.

[0016] The oil inlet of the three-position four-way electromagnetic reversing valve Ⅵ and the three-position four-way electromagnetic reversing valve Ⅳ is connected with the power source P1 through a pressure reducing valve Ⅵ, and the oil inlet of the three-position four-way electromagnetic reversing valve Ⅴ is connected with the oil outlet of the pressure reducing valve Ⅵ through a pressure reducing valve Ⅴ.

[0017] The multifunctional crushing main machine test device of the application is suitable for integration of different types of main machine driving and control systems, integrates hydraulic control devices, has small occupied area and is convenient to maintain, has various functions, is suitable for mainstream crushing machines in the industry including jaw crushers, cone crushers and vertical shaft crushers, supports bench test after assembly of the crushing main machine, instead of test after complete assembly of the whole machine, can quickly verify the function reliability of product design, can also eliminate early faults of internal mechanical transmission gears and other components of the main machine, greatly shortens production time and manufacturing cost. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a hydraulic principle diagram of the function valve table 1 suitable for a jaw crusher main machine;

[0019] Figure 2 is a hydraulic principle diagram of the function valve table 2 suitable for a cone crusher main machine;

[0020] Figure 3 is a principle diagram of the action of a hydraulic drive motor.

[0021] In the figure: 1, pressure switch I, 2, hydraulic cylinder I, 3, hydraulic cylinder II, 4, hydraulic cylinder III, 5, one-way throttle valve I, 6, one-way throttle valve II, 7, hydraulic lock I, 8, three-position four-way electromagnetic reversing valve I, 9, electromagnetic valve I, 10, pressure reducing valve I, 11, pressure reducing valve II, 12, two-position four-way electromagnetic reversing valve I, 13, one-way valve I, 14, throttle valve, 15, electromagnetic unloading valve I, 16, overflow valve I, 17, stop ball valve I, 18, hydraulic cylinder IV, 19, pressure switch II, 20, hydraulic motor, 21, shuttle valve, 22, hydraulic cylinder V, 23, pressure switch III, 24, stop ball valve II, 25, overflow valve II, 26, hydraulic control one-way valve, 27, overflow valve III, 28, electromagnetic valve II, 29, three-position four-way electromagnetic reversing valve II, 30, three-position four-way electromagnetic reversing valve III, 31, pressure reducing valve III, 32, pressure reducing valve IV, 33, two-position four-way electromagnetic reversing valve II, 34, one-way valve II, 35, electromagnetic unloading valve II, 36, overflow valve IV, 37, overflow valve V, 38, accumulator, 39, stop ball valve III, 40, electromagnetic unloading valve III, 41, hydraulic cylinder VI, 42, hydraulic cylinder VII, 43, hydraulic cylinder VIII, 44, hydraulic cylinder IX, 45, hydraulic cylinder X, 46, hydraulic cylinder XI, 47, hydraulic cylinder XII, 48, one-way throttle valve III, 49, one-way throttle valve IV, 50, hydraulic lock II, 51, three-position four-way electromagnetic reversing valve IV, 52, one-way throttle valve V, 53, hydraulic lock III, 54, three-position four-way electromagnetic reversing valve V, 55, pressure reducing valve V, 56, pressure reducing valve VI, 57, three-position four-way electromagnetic reversing valve VI, 58, one-way throttle valve VI, 59, one-way throttle valve VII, 60, one-way throttle valve VIII. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present application will be described herein below with reference to the drawings; it should be understood, however, that the described preferred embodiments are intended to be illustrative only and are not intended to limit the scope of the present application.

[0023] As Figures 1 to 3The multifunctional crushing host test device shown comprises a function valve table one suitable for the function of the jaw crusher host, a function valve table two suitable for the function of the cone crusher host and a function valve table three for adjusting the position of the motor, the multifunctional test bench of the present application is integrally provided with the control valve body and is divided into the function valve table one, the function valve table two and the function valve table three, the function valve table one is responsible for the function driving of the jaw crusher host, the function valve table two is responsible for the function driving of the cone crusher host, the function valve table three is responsible for the support driving and the belt tensioning and is adjusted in the left and right directions, wherein, the function valve table one and the function valve table three are used in combination to test the jaw crusher, the function valve table two and the function valve table three are used in combination to test the cone crusher, the design function of the host can be reproduced on the test bench very conveniently by using the multifunctional test bench, the feasibility of the host function design is verified, the process and the product assembly quality of the product are inspected, a large amount of time and management cost are saved, and the multifunctional test bench has the characteristics of small occupied area, simple operation, convenient use and high adaptability.

[0024] As shown in Figure 1 A multifunctional crushing host test device, the execution structure of the function valve table one comprises hydraulic cylinders I2, hydraulic cylinders II3 and hydraulic cylinders III4, the rod cavity of the hydraulic cylinders I2 is connected with a power source through a two-position four-way electromagnetic reversing valve I12,

[0025] The rodless cavity of the hydraulic cylinders I2 is directly connected with an oil tank, the oil inlet end of the two-position four-way electromagnetic reversing valve I12 is connected with a power source P2 through a pressure reducing valve II11, the oil outlet end of the two-position four-way electromagnetic reversing valve I12 is connected with the rod cavity of the hydraulic cylinders I2 through a check valve I13 and a throttle valve 14, and a pressure switch I1, an overflow valve I16, a stop ball valve I17 and an electromagnetic unloading valve I15 are connected in parallel on the oil circuit between the hydraulic cylinders I2 and the throttle valve 14. The oil inlet of the pressure reducing valve II11 is connected with the P2 pump, the pressure reducing valve II11 is connected with the two-position four-way reversing valve I12, one oil outlet end of the two-position four-way reversing valve I12 is closed, and the other oil outlet end is connected with the check valve I13 and the throttle valve 14 in series, wherein the oil outlet end of the throttle valve 14 is connected with the rod cavity of the hydraulic cylinders I2, the oil outlet end of the throttle valve 14 is connected with the electromagnetic unloading valve I15, the stop ball valve I17 and the overflow valve I16 in parallel, the overflow valve I16 is connected with the pressure switch I1 in series, and the rodless cavity of the hydraulic cylinders I2 is directly returned to the oil tank; in the de-energized working state of the two-position four-way electromagnetic reversing valve I12, the oil inlet end is closed; the electromagnetic unloading valve I15 is de-energized to cut off the oil circuit and is energized to conduct the oil circuit.

[0026] As shown in Figure 1The multifunctional crushing main machine test device, the hydraulic cylinder Ⅱ 3 and the hydraulic cylinder Ⅲ 4 are connected with a power source and an oil tank through a one-way throttle valve, a hydraulic lock Ⅰ 7 and a three-position four-way electromagnetic reversing valve Ⅰ 8, the oil inlet end of the three-position four-way electromagnetic reversing valve Ⅰ 8 is connected with the power source P1 through a pressure reducing valve Ⅰ 10, the oil outlet end of the pressure reducing valve Ⅰ 10 is provided with an electromagnetic valve Ⅰ 9 connected with the oil tank, the rod cavity and the rodless cavity of the hydraulic cylinder Ⅱ 3 and the hydraulic cylinder Ⅲ 4 are connected with two ends of the hydraulic lock Ⅰ 7 through a one-way throttle valve Ⅰ 5 and a one-way throttle valve Ⅱ 6 respectively, the P1 power source oil port of the present application is connected with the pressure reducing valve Ⅰ 10, the pressure reducing valve Ⅰ 10 is connected with the three-position four-way electromagnetic reversing valve Ⅰ 8 and the hydraulic lock Ⅰ 7 in sequence, the two oil outlet ends of the hydraulic lock Ⅰ 7 are connected with the one-way throttle valve Ⅰ 5 and the one-way throttle valve Ⅱ 6 respectively, the oil outlet end of the one-way throttle valve Ⅰ 5 is connected with the rod cavity of the hydraulic cylinder Ⅱ 3 and the hydraulic cylinder Ⅲ 4, the rodless cavity of the hydraulic cylinder Ⅱ 3 and the hydraulic cylinder Ⅲ 4 is connected with the one-way throttle valve Ⅱ 6, the oil outlet end of the pressure reducing valve Ⅰ 10 is connected with the electromagnetic valve Ⅰ 9 in parallel, and the oil outlet of the three-position four-way electromagnetic reversing valve Ⅰ 8 returns to the oil tank.

[0027] As Figure 2 The multifunctional crushing main machine test device, the execution structure of the function valve table two includes a hydraulic cylinder Ⅳ 18, a hydraulic cylinder Ⅴ 22 and a hydraulic motor 20, the rodless cavity of the hydraulic cylinder Ⅳ 18 is connected with a power source through a two-position four-way electromagnetic reversing valve Ⅱ 33, the oil inlet end of the two-position four-way electromagnetic reversing valve Ⅱ 33 is connected with the power source P2 through a pressure reducing valve Ⅳ 32, and the oil outlet end of the two-position four-way electromagnetic reversing valve Ⅱ 33 is provided with a one-way valve Ⅱ 34; the oil outlet end of the one-way valve Ⅱ 34 is provided with two parallel branches and a pressure switch 19, the parallel branch one is provided with an electromagnetic unloading valve Ⅱ 35 and an overflow valve Ⅳ 36, and the parallel branch two is provided with an electromagnetic unloading valve Ⅲ 40, an accumulator 38, an overflow valve Ⅴ 37 and a stop ball valve Ⅲ 39, the oil inlet of the pressure reducing valve Ⅳ 32 of the present application is connected with the P1 pump, the oil outlet end of the pressure reducing valve Ⅳ 32 is connected with the two-position four-way electromagnetic reversing valve Ⅱ 33, the oil outlet end of the electromagnetic reversing valve Ⅱ 33 is sequentially connected with the pressure switch Ⅱ 19 and the hydraulic cylinder Ⅳ 18, the oil outlet end of the electromagnetic reversing valve Ⅱ 33 is also connected with two branches in parallel, the parallel branch one is connected with the electromagnetic unloading valve Ⅱ 35, the branch is connected with the overflow valve Ⅳ 36 in sequence, and the outlet is connected with the oil tank; the parallel branch two is connected with the electromagnetic unloading valve Ⅲ 40, the accumulator 38 and the overflow valve Ⅴ 37, the accumulator 38 and the overflow valve Ⅴ 37 are connected in parallel after being connected in series, and the oil outlet of the stop ball valve Ⅲ 39 directly returns to the oil tank T; the two-position four-way electromagnetic reversing valve Ⅱ 33 is closed in the left position, the oil circuit is closed when the electromagnetic unloading valve Ⅱ 35 is de-energized, the accumulator 38 is communicated with the hydraulic cylinder Ⅳ 18 when the electromagnetic valve Ⅲ 40 is in the initial state, and the accumulator 38 is communicated with the oil tank when the electromagnetic unloading valve Ⅲ 40 is in the energized state.

[0028] As Figure 2The multifunctional crushing main machine test device shown in the figure, the hydraulic oil cylinder V 22 is connected with the power source and the oil tank through three-position four-way electromagnetic reversing valve Ⅱ 29, the hydraulic motor 20 is connected with the power source and the oil tank through shuttle valve 21 and three-position four-way electromagnetic reversing valve Ⅲ 30; the oil inlet end of three-position four-way electromagnetic reversing valve Ⅲ 30 and three-position four-way electromagnetic reversing valve Ⅱ 29 is connected with the power source P1 through pressure reducing valve Ⅲ 31, and the oil outlet end of the pressure reducing valve Ⅲ 31 is provided with an electromagnetic valve Ⅱ 28 connected with the oil tank; the rod cavity oil way of the hydraulic oil cylinder V 22 is provided with a hydraulic control check valve 26, the control end of the hydraulic control check valve 26 is connected with the rodless cavity oil way of the hydraulic oil cylinder V 22; the oil inlet end of the hydraulic control check valve 26 is connected with overflow valve Ⅲ 27 in parallel, the oil outlet end of the hydraulic control check valve 26 is connected with pressure switch Ⅲ 23 and stop ball valve Ⅱ 24 in parallel, and the pressure switch Ⅲ 23 is further connected with overflow valve Ⅱ 25 in series.

[0029] As Figure 3 The multifunctional crushing main machine test device shown in the figure, the execution structure of the function valve table three includes hydraulic oil cylinder Ⅵ 41, hydraulic oil cylinder Ⅶ 42, hydraulic oil cylinder Ⅷ 43, hydraulic oil cylinder Ⅸ 44, hydraulic oil cylinder Ⅹ 45, hydraulic oil cylinder ⅩⅠ 46 and hydraulic oil cylinder ⅩⅡ 47, the hydraulic oil cylinder Ⅵ 41 and the hydraulic oil cylinder Ⅶ 42 are connected with the power source and the oil tank through the one-way throttle valve and the three-position four-way electromagnetic reversing valve Ⅵ 57, the hydraulic oil cylinder Ⅷ 43 is connected with the power source and the oil tank through the one-way throttle valve, the hydraulic lock Ⅲ 53 and the three-position four-way electromagnetic reversing valve Ⅴ 54, the hydraulic oil cylinder Ⅸ 44, the hydraulic oil cylinder Ⅹ 45, the hydraulic oil cylinder ⅩⅠ 46 and the hydraulic oil cylinder ⅩⅡ 47 are connected with the power source and the oil tank through the one-way throttle valve, the hydraulic lock Ⅱ 50 and the three-position four-way electromagnetic reversing valve Ⅳ 51.

[0030] As Figure 3 The multifunctional crushing main machine test device shown in the figure, the oil inlet end of the three-position four-way electromagnetic reversing valve Ⅵ 57 and the three-position four-way electromagnetic reversing valve Ⅳ 51 is connected with the power source P1 through the pressure reducing valve Ⅵ 56, and the oil inlet end of the three-position four-way electromagnetic reversing valve Ⅴ 54 is connected with the oil outlet end of the pressure reducing valve Ⅵ 56 through the pressure reducing valve Ⅴ 55.

[0031] AsFigure 3 The multifunctional crushing host test device shown in the invention has a P1 power oil port connected to a pressure reducing valve VI56, an oil outlet parallel branch connected to a three-position four-way solenoid directional valve VI57, and the rod chamber and rodless chamber of hydraulic cylinder VI41 and hydraulic cylinder VII42 are respectively connected to the three-position four-way solenoid directional valve VI57 through one-way throttle valve VII59 and one-way throttle valve VI57.

[0032] like Figure 3 The multifunctional crushing host test device shown in this invention has a parallel branch two of the oil outlet of the pressure reducing valve VI 56, which is connected to a three-position four-way solenoid directional valve V 54. A hydraulic lock Ⅲ 53 is provided between the two oil outlets of the three-position four-way solenoid directional valve V 54. The rod chamber and rodless chamber of the hydraulic cylinder VIII 43 are respectively connected to the two ends of the hydraulic lock Ⅲ 53 through a one-way throttle valve V 52 and a one-way throttle valve VIII 60.

[0033] like Figure 3 The multifunctional crushing host test device shown in this invention has a parallel branch three of the oil outlet of the pressure reducing valve VI 56, which is connected to a three-position four-way solenoid directional valve IV 51. A hydraulic lock II 50 is provided between the two oil outlets of the three-position four-way solenoid directional valve IV 51. The rod chamber and rodless chamber of hydraulic cylinders IX 44, X 45, X I 46 and X II 47 are respectively connected to the two ends of the hydraulic lock II 50 through one-way throttle valve III 48 and one-way throttle valve IV 49.

[0034] Taking the verification of the functions of the jaw crusher series main products as an example, the combination of valve platform one and valve platform three realizes the operation of the jaw crusher main unit; the details are as follows:

[0035] The hydraulic oil enters the three-position four-way solenoid directional valve IV51 through the pressure reducing valve VI56, and then enters the rodless chambers of cylinders IX44, XII47, X45, and XI46 through the hydraulic lock II50 and the one-way throttle valve IV49. The hydraulic oil in the rod chambers of cylinders IX44, XII47, X45, and XI46 returns to the oil tank through the one-way throttle valve III48, the hydraulic lock II50, and the three-position four-way solenoid directional valve IV51. The position of the hydraulic motor is adjusted to tighten the belt of the jaw crusher pulley. At the same time, under the action of cylinders IX44 and XII47, the coplanarity of the belt is adjusted.

[0036] Pressure oil enters the rod chamber of hydraulic cylinder I2 through pressure reducing valve II11, two-position four-way solenoid directional valve I12, check valve I13 and throttle valve 14. At the same time, pressure oil enters solenoid unloading valve I15, shut-off ball valve I17 and relief valve I16 to maintain the preset pressure in the rod chamber so that cylinder I can tighten the moving jaw.

[0037] At the same time, the pressure oil passes through the pressure reducing valve 110, the three-position four-way electromagnetic reversing valve 108, the hydraulic lock 107 and the one-way throttle valve 105, enters the rod cavity of the hydraulic cylinder 103 and the hydraulic cylinder 104, and the pressure oil in the rod cavity of the hydraulic cylinder 103 and the hydraulic cylinder 104 flows back to the oil tank through the one-way throttle valve 106, the hydraulic lock 107, the three-position four-way electromagnetic reversing valve 108 and the electromagnetic valve 109, and the size of the discharge port is adjusted by controlling the extension and retraction of the oil cylinder.

[0038] Taking the verification of the functions of the main machine of the cone crusher series as an example, the function valve table two and the function valve table three need to be operated, which are as follows:

[0039] The function valve table three is responsible for adjusting the position of the motor support to ensure that the pulley is coplanar with the pulley of the main machine. The power oil enters the rod cavity of the hydraulic cylinder 141 and the hydraulic cylinder 142 through the pressure reducing valve 156, the three-position four-way reversing valve 157 and the one-way throttle valve 158, drives the motor support to move horizontally, and ensures the coplanarity.

[0040] The power oil enters the rod cavity of the hydraulic cylinder 143 through the pressure reducing valve 156, the three-position four-way electromagnetic reversing valve 154, the hydraulic lock 153 and the one-way throttle valve 160; the power oil enters the rod cavity of the hydraulic cylinder 144, the hydraulic cylinder 145, the hydraulic cylinder 146 and the hydraulic cylinder 147 through the pressure reducing valve 156, the three-position four-way electromagnetic reversing valve 151, the hydraulic lock 153 and the one-way throttle valve 149, locks the valve table base, and adjusts the tensioning belt at the same time, so that the belt has a certain tension.

[0041] The power oil enters the electromagnetic unloading valve 135 and the hydraulic cylinder 118 through the pressure reducing valve 132 and the two-position four-way electromagnetic reversing valve 133. When the electromagnetic valve 140 is in the initial state, the accumulator 138 is in communication with the hydraulic cylinder 118; when the electromagnetic unloading valve 140 is in the electric state, it is in communication with the oil tank; when the pressure of the hydraulic cylinder 118 reaches a predetermined value, the cone crusher main machine can be started.

[0042] The power oil enters the hydraulic motor 20 through the pressure reducing valve 131 and the three-position four-way electromagnetic valve 130. The branch parallel shuttle valve 21 can control the pressure oil to reverse, adjust the up-down movement of the fixed cone, and is responsible for adjusting the size of the discharge port.

[0043] The power oil enters the rod cavity of the hydraulic cylinder 122 through the pressure reducing valve 131 and the three-position four-way electromagnetic reversing valve 129. The rod cavity of the hydraulic cylinder 122 is connected to the three-position four-way electromagnetic reversing valve 129 through the hydraulic control one-way valve 126, adjusts the release cylinder, ensures that the release cylinder has a certain tension, and tightens the fixed cone.

[0044] Finally, it should be noted that the above is only the preferred examples of the present application patent, and is not intended to limit the patent, although the foregoing examples of the present application patent has been described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement of the technical solutions described in the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application patent, should be included in the scope of protection of the present application patent.

Claims

1. A multifunctional crushing main unit test device, characterized in that: It includes a functional valve platform 1 adapted to a jaw crusher, a functional valve platform 2 adapted to a cone crusher, and a functional valve platform 3 for adjusting the motor position. Functional valve platform 3 is responsible for supporting drive, belt tensioning, and left and right adjustment. Functional valve platform 1 and functional valve platform 3 are used together to test the jaw crusher; functional valve platform 2 and functional valve platform 3 are used together to test the cone crusher. The execution structure of the functional valve platform includes hydraulic cylinder I (2), hydraulic cylinder II (3) and hydraulic cylinder III (4). The rod chamber of hydraulic cylinder I (2) is connected to the power source through a two-position four-way solenoid directional valve I (12). The rodless chamber of hydraulic cylinder I (2) is directly connected to the oil tank. Hydraulic cylinder II (3) and hydraulic cylinder III (4) are connected to the power source and the oil tank through a one-way throttle valve, a hydraulic lock I (7) and a three-position four-way solenoid directional valve I (8). The execution structure of the functional valve platform II includes hydraulic cylinder IV (18), hydraulic cylinder V (22) and hydraulic motor (20). The rodless chamber of the hydraulic cylinder IV (18) is connected to the power source through a two-position four-way solenoid valve II (33). The hydraulic cylinder V (22) is connected to the power source and the oil tank through a three-position four-way solenoid valve II (29). A hydraulic control check valve (26) is provided between the oil circuits of the rod chamber and the rodless chamber of the hydraulic cylinder V (22). The hydraulic motor (20) is connected to the power source and the oil tank through a shuttle valve (21) and a three-position four-way solenoid valve III (30). The actuator structure of the functional valve platform includes hydraulic cylinders VI (41), VII (42), VIII (43), IX (44), X (45), XI (46), and XII (47). Hydraulic cylinders VI (41) and VII (42) are connected to the power source and the oil tank through a one-way throttle valve and a three-position four-way solenoid directional valve VI (57). Hydraulic cylinder VIII (43) is connected to the power source and the oil tank through a one-way throttle valve, a hydraulic lock III (53), and a three-position four-way solenoid directional valve V (54). Hydraulic cylinders IX (44) and X (45) are connected to the power source and the oil tank through a one-way throttle valve, a hydraulic lock III (53), and a three-position four-way solenoid directional valve V (54). Hydraulic cylinders XⅠ (46) and XⅡ (47) are connected to the power source and oil tank through a one-way throttle valve, hydraulic lock Ⅱ (50) and three-position four-way solenoid directional valve Ⅳ (51).

2. The multifunctional crushing main unit test device as described in claim 1, characterized in that: The oil inlet of the two-position four-way solenoid directional valve I (12) is connected to the power source P2 through the pressure reducing valve II (11), and the oil outlet of the two-position four-way solenoid directional valve I (12) is connected to the rod chamber of the hydraulic cylinder I (2) through the check valve I (13) and the throttle valve (14).

3. The multifunctional crushing main unit test device as described in claim 2, characterized in that: The hydraulic cylinder I (2) and the throttle valve (14) are connected in parallel with a pressure switch I (1), an overflow valve I (16), a shut-off ball valve I (17), and an electromagnetic unloading valve I (15).

4. The multifunctional crushing main unit test device as described in claim 1, characterized in that: The oil inlet of the three-position four-way solenoid directional valve I (8) is connected to the power source P1 through the pressure reducing valve I (10). The oil outlet of the pressure reducing valve I (10) is provided with a solenoid valve I (9) connected to the oil tank. The rod chamber and rodless chamber of the hydraulic cylinder II (3) and the hydraulic cylinder III (4) are respectively connected to the two ends of the hydraulic lock I (7) through the one-way throttle valve I (5) and the one-way throttle valve II (6).

5. The multifunctional crushing main unit test device as described in claim 1, characterized in that: The oil inlet of the two-position four-way solenoid directional valve II (33) is connected to the power source P2 through the pressure reducing valve IV (32), and the oil outlet of the two-position four-way solenoid directional valve II (33) is provided with a check valve II (34).

6. The multifunctional crushing main unit test device as described in claim 5, characterized in that: The oil outlet of the one-way valve II (34) is provided with two parallel branches and a pressure switch (19). Parallel branch one is provided with electromagnetic unloading valve II (35) and overflow valve IV (36). Parallel branch two is provided with electromagnetic unloading valve III (40), accumulator (38), overflow valve V (37) and shut-off ball valve III (39).

7. The multifunctional crushing main unit test device as described in claim 1, characterized in that: The oil inlet of the three-position four-way solenoid valve III (30) and the three-position four-way solenoid valve II (29) is connected to the power source P1 through the pressure reducing valve III (31), and the oil outlet of the pressure reducing valve III (31) is provided with a solenoid valve II (28) connected to the oil tank.

8. The multifunctional crushing main unit test device as described in claim 1, characterized in that: The rod chamber oil circuit of the hydraulic cylinder V (22) is equipped with a hydraulic control check valve (26), and the control end of the hydraulic control check valve (26) is connected to the rodless chamber oil circuit of the hydraulic cylinder V (22).

9. A multifunctional crushing main unit test device as described in claim 8, characterized in that: The inlet end of the hydraulic check valve (26) is connected in parallel with an overflow valve III (27), and the outlet end of the hydraulic check valve (26) is connected in parallel with a pressure switch III (23) and a shut-off ball valve II (24). The pressure switch III (23) is also connected in series with an overflow valve II (25).

10. A multifunctional crushing main unit test device as described in claim 1, characterized in that: The oil inlet of the three-position four-way solenoid valve VI (57) and the three-position four-way solenoid valve IV (51) is connected to the power source P1 through the pressure reducing valve VI (56). The oil inlet of the three-position four-way solenoid valve V (54) is connected to the oil outlet of the pressure reducing valve VI (56) through the pressure reducing valve V (55).

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