Hydraulic system for tamping machine

Abstract

The utility model discloses a hydraulic system for a tamping machine, which comprises a hydraulic oil tank, two oil pump assemblies, a tee joint and one-way valve group, a clamping hammer device oil cylinder ball valve group, a safety hook oil cylinder ball valve group, a safety hook oil cylinder group and a clamping hammer device oil cylinder group, the two oil pump assemblies are connected with the tee joint and the one-way valve set, and the tee joint and the one-way valve set are connected with the clamping hammer device oil cylinder ball valve set and the safety hook oil cylinder ball valve set respectively. According to the standby hydraulic device of the tamping machine, due to the fact that the two oil pump assemblies are arranged and the structural design of the hydraulic system is optimized, under the condition that one oil pump assembly is used, the other oil pump assembly can be overhauled and maintained synchronously, the tamping machine does not need to be stopped, online overhauling of the hydraulic system is achieved, and the working efficiency of the tamping machine is improved. And the tamping coking efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a rammer for ramming and coking technical field, specifically relates to a rammer for ramming and coking hydraulic system. BACKGROUND

[0002] The rammer is the important core equipment of ramming and coking industry, mainly by mechanical part, hydraulic system, electric control system three big parts are composed. Its function is to use the important component of mechanical part rammer to do free fall motion and produce the ramming impact work, the loose coal flow that the feeder gives is rammed in the coal car box, and the rammer is stopped in the carbonization chamber of coke oven and smelts, and the rammer is stopped in the carbonization chamber of coke oven and smelts,

[0003] Industry is known that the coke oven vehicle is the work mode of "365x24", and the single hole operation cycle time is not more than 13 minutes. Among them, 365x24 is 365 days 24 hours operation, in the single hole operation cycle time, the ramming time is not more than 8 minutes, and the coal loading and coke pushing time is not more than 5 minutes, that is, the working cycle time of the rammer is: working 8 minutes, stopping 5 minutes. Therefore, the reliability and stability of the rammer directly determine the reliability and stability of the ramming and coking, in the hydraulic system technology of the existing rammer, the hydraulic system mainly controls the action of safety hook and clamp hammer device, the hydraulic control system of the rammer is composed of hydraulic oil tank, hydraulic oil pump, hydraulic valve group, safety hook cylinder group, clamp hammer device cylinder group and hydraulic oil, etc.

[0004] Among them, the hydraulic oil pump and the hydraulic valve group are single operation, once the oil pump or the valve group fails, when needing to be maintained, the rammer work must be stopped, thereby affecting the production efficiency and delaying the production rhythm. Therefore, it is urgent to design a rammer hydraulic system to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a rammer hydraulic system to solve the above deficiencies in the prior art.

[0006] In order to realize the above object, the utility model provides the following technical scheme:

[0007] A rammer hydraulic system, comprising a hydraulic oil tank, an oil pump assembly, a three-way and check valve group, a clamp hammer device cylinder ball valve group, a safety hook cylinder ball valve group, a safety hook cylinder group and a clamp hammer device cylinder group, the number of the oil pump assembly is two groups, and the two groups of oil pump assemblies are connected in parallel, the oil pump assembly is connected with the hydraulic oil tank, the two groups of oil pump assemblies are connected with the three-way and check valve group, the three-way and check valve group is connected with the clamp hammer device cylinder ball valve group and the safety hook cylinder ball valve group respectively, the clamp hammer device cylinder ball valve group is connected with the clamp hammer device cylinder group, and the safety hook cylinder ball valve group is connected with the safety hook cylinder group.

[0008] The hydraulic oil tank and the oil pump assembly are provided with a conveying pipe, and a filtering mechanism is arranged in the conveying pipe.

[0009] The filtering mechanism comprises a sealing shell, a sealing cover, a clamping plate and a filter screen, the sealing shell is fixedly installed on one side of the conveying pipe, the sealing cover is arranged on one side of the sealing shell, a clamping groove is formed on one side of the conveying pipe, the clamping plate is clamped and installed in the clamping groove, and the filter screen is arranged between the clamping plates.

[0010] The oil pump assembly comprises an oil pump and an oil pump control valve group, the oil pump control valve group comprises a safety hook oil cylinder control valve group and a clamp hammer device oil cylinder control valve group, and the number of the clamp hammer device oil cylinder control valve group is several.

[0011] The safety hook oil cylinder control valve group comprises a first double one-way throttling valve, a double balance valve and a three-position four-way reversing valve.

[0012] The clamp hammer device oil cylinder control valve group comprises a second double one-way throttling valve, a two-position four-way reversing valve and a one-way valve.

[0013] In the above technical scheme, the hydraulic system for the rammer has the following beneficial effects:

[0014] (1) The standby hydraulic device of the rammer is provided with two groups of oil pump assemblies, and the structure of the hydraulic system is optimized, so that when one group of oil pump assemblies is used, the other group can be simultaneously maintained and repaired without stopping the work of the rammer, thereby realizing online maintenance of the hydraulic system and greatly improving the efficiency of ramming coking.

[0015] (2) The standby hydraulic device of the rammer is provided with a filtering mechanism, which can filter the oil in the hydraulic oil tank when the oil pump assembly extracts the oil, so as to avoid the influence of impurities in the oil on the oil pump assembly, thereby improving the practicality and stability of the oil pump assembly in use. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0017] Figure 1 The overall structure schematic view of the hydraulic system for the rammer is provided.

[0018] Figure 2The utility model provides a safety hook oil cylinder control valve group structure schematic diagram for the hydraulic system embodiment of a rammer compactor.

[0019] Figure 3 The utility model provides a clamp hammer device oil cylinder control valve group structure schematic diagram for the hydraulic system embodiment of a rammer compactor.

[0020] Figure 4 The utility model provides a filter mechanism whole structure schematic diagram for the hydraulic system embodiment of a rammer compactor.

[0021] Figure 5 The utility model provides a filter mechanism dismounts section structure schematic diagram for the hydraulic system embodiment of a rammer compactor.

[0022] 1, hydraulic oil tank;2, oil pump assembly;3, oil pump;4, oil pump control valve group;5, three ways and check valve group;6, clamp hammer device oil cylinder ball valve group;7, safety hook oil cylinder ball valve group;8, safety hook oil cylinder group;9, clamp hammer device oil cylinder group;10, clamp hammer device oil cylinder control valve group;11, safety hook oil cylinder control valve group;12, first double check throttle valve;13, double balance valve;14, three position four way reversing valve;15, second double check throttle valve;16, two position four way reversing valve;17, check valve;18, filter mechanism;19, seal shell;20, sealing cover;21, clamping plate;22, filter screen;23, clamping groove;25, delivery pipe. DETAILED DESCRIPTION

[0023] In order to make the technical personnel of the prior art better understand the technical scheme of the utility model, the utility model will be introduced further in the following with the attached drawings.

[0024] As Figures 1-5 The utility model discloses a hydraulic system for rammer compactor, including hydraulic oil tank 1, oil pump assembly 2, three ways and check valve group 5, clamp hammer device oil cylinder ball valve group 6, safety hook oil cylinder ball valve group 7, safety hook oil cylinder group 8 and clamp hammer device oil cylinder group 9, the number of oil pump assembly 2 is two groups, and two groups of oil pump assembly 2 are parallel, and oil pump assembly 2 is connected with hydraulic oil tank 1, two groups of oil pump assembly 2 are connected with three ways and check valve group 5, three ways and check valve group 5 are connected with clamp hammer device oil cylinder ball valve group 6 and safety hook oil cylinder ball valve group 7 respectively, clamp hammer device oil cylinder ball valve group 6 is connected with clamp hammer device oil cylinder group 9, and safety hook oil cylinder ball valve group 7 is connected with safety hook oil cylinder group 8.

[0025] Specifically, in the embodiment, the oil pump assembly 2 is arranged in two groups, and the two groups of oil pump assemblies 2 are in parallel connection, when one group of oil pump assemblies 2 is started, the safety hook oil cylinder ball valve group 7 and the clamp hammer device oil cylinder ball valve group 6 are in the open state, the working route of the hydraulic system is that the hydraulic oil tank 1 provides hydraulic oil for the hydraulic system, the hydraulic oil is delivered to the three-way valve and check valve group 5 through the oil pump assembly 2, then the hydraulic oil is delivered to the safety hook oil cylinder group 8 and the clamp hammer device oil cylinder group 9 through the three-way valve and check valve group 5, and then the safety hook oil cylinder group 8 and the clamp hammer device oil cylinder group 9 are controlled to work, at this time, the other group of oil pump assemblies 2 is in the disabled state, and the workers can overhaul and maintain it, through the optimization of the structure design, and the oil pump assembly 2 of the hydraulic system is redundantly designed, in the case of using one group of oil pump assemblies 2, the other group can be overhauled and maintained synchronously, thereby realizing online maintenance of the hydraulic system without stopping the work of the stamping machine, and greatly improving the efficiency of stamping coking.

[0026] The hydraulic system for the stamping machine has the advantages that the filter mechanism 18 is arranged in the conveying pipe 25 between the hydraulic oil tank 1 and the oil pump assembly 2, the filter mechanism 18 includes the sealing shell 19, the sealing cover 20, the clamping plate 21 and the filter screen 22, the sealing shell 19 is fixedly installed on one side of the conveying pipe 25, the sealing cover 20 is arranged on one side of the sealing shell 19, the sealing cover 20 is fixedly connected with the sealing shell 19 through screws, the clamping groove 23 is arranged on one side of the conveying pipe 25, the clamping plate 21 is clamped and installed in the clamping groove 23, the sealing rubber ring is arranged between the clamping plate 21 and the clamping groove 23, the elastic clamping beads are arranged on one side of the clamping plate 21, the filter screen 22 is arranged between the clamping plates 21, the number of the clamping grooves 23, the clamping plates 21 and the filter screens 22 is two, and the filter holes of the two filter screens 22 are different in size.

[0027] In another embodiment of the utility model, when the oil pump assembly 2 extracts the oil in the hydraulic oil tank 1 and provides hydraulic oil for the hydraulic system, the hydraulic oil is delivered to the oil pump assembly 2 through the conveying pipe 25, then the filter mechanism 18 can filter the hydraulic oil and intercept the sundries in the hydraulic oil, when the filter screen 22 needs to be cleaned, the sealing cover 20 is opened, then the clamping plate 21 is pulled, so that the clamping plate 21 drives the filter screen 22 to separate from the conveying pipe 25 and the clamping groove 23, and then the filter screen 22 can be disassembled and cleaned, when the sealing cover 20 is installed on the sealing shell 19, the sealing cover 20 is attached to one side of the clamping plate 21 and provides extrusion force to the clamping plate 21, so that the clamping plate 21 is more stably installed in the clamping groove 23.

[0028] The utility model provides a kind of hydraulic system for tamping machine, oil pump assembly 2 includes oil pump 3 and oil pump control valve group 4, oil pump control valve group 4 includes safety hook oil cylinder control valve group 11 and clamping hammer device oil cylinder control valve group 10, the quantity of clamping hammer device oil cylinder control valve group 10 is several, safety hook oil cylinder control valve group 11 includes first double one-way throttle valve 12, double balance valve 13 and three-position four-way reversing valve 14, clamping hammer device oil cylinder control valve group 10 includes second double one-way throttle valve 15, two-position four-way reversing valve 16 and one-way valve 17.

[0029] In another embodiment of the utility model, the delivery pipe 25 is arranged between the input end of the oil pump 3 and the output end of the hydraulic oil tank 1.

[0030] The above only describes certain exemplary embodiments of the utility model by way of illustration, without doubt, for ordinary skilled person in the art, under the condition of not deviating from the spirit and scope of the utility model, the described embodiment can be modified in various different ways. Therefore, the above drawings and description are illustrative in nature, and should not be understood as limiting the scope of protection of the claims of the utility model.

Claims

1. A hydraulic system for a rammer compactor, characterized by, The hydraulic oil tank (1), the oil pump assembly (2), the three-way and one-way valve group (5), the clamp hammer device oil cylinder ball valve group (6), the safety hook oil cylinder ball valve group (7), the safety hook oil cylinder group (8) and the clamp hammer device oil cylinder group (9) are connected, the number of the oil pump assembly (2) is two groups, and the two groups of oil pump assemblies (2) are connected in parallel, the oil pump assembly (2) is connected with the hydraulic oil tank (1), the two groups of oil pump assemblies (2) are connected with the three-way and one-way valve group (5), the three-way and one-way valve group (5) is connected with the clamp hammer device oil cylinder ball valve group (6) and the safety hook oil cylinder ball valve group (7) respectively, the clamp hammer device oil cylinder ball valve group (6) is connected with the clamp hammer device oil cylinder group (9), and the safety hook oil cylinder ball valve group (7) is connected with the safety hook oil cylinder group (8).

2. A hydraulic system for a rammer compactor as claimed in claim 1, wherein, The hydraulic oil tank (1) and the oil pump assembly (2) are provided with a conveying pipe (25), and the conveying pipe (25) is provided with a filtering mechanism (18).

3. A hydraulic system for a rammer compactor as claimed in claim 2, wherein, The filtering mechanism (18) comprises a sealing shell (19), a sealing cover (20), a clamping plate (21) and a filter screen (22), the sealing shell (19) is fixedly installed on one side of the conveying pipe (25), the sealing cover (20) is arranged on one side of the sealing shell (19), a clamping groove (23) is formed in one side of the conveying pipe (25), the clamping plate (21) is clamped and installed in the clamping groove (23), and the filter screen (22) is arranged between the clamping plates (21).

4. The hydraulic system for a rammer compactor as set forth in claim 1, wherein The oil pump assembly (2) comprises an oil pump (3) and an oil pump control valve group (4), the oil pump control valve group (4) comprises a safety hook oil cylinder control valve group (11) and a clamp hammer device oil cylinder control valve group (10), and the number of the clamp hammer device oil cylinder control valve group (10) is several.

5. A hydraulic system for a rammer compactor as defined in claim 4, wherein The safety hook oil cylinder control valve group (11) comprises a first double one-way throttling valve (12), a double balance valve (13) and a three-position four-way reversing valve (14).

6. A hydraulic system for a rammer compactor as defined in claim 4, wherein The clamp hammer device oil cylinder control valve group (10) comprises a second double one-way throttling valve (15), a two-position four-way reversing valve (16) and a one-way valve (17).

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