Lubricating structure for hydraulic retarder

Abstract

The utility model discloses a lubrication structure for a hydraulic retarder, which relates to the technical field of hydraulic retarders and comprises a retarder main body, a cavity is arranged in the retarder main body, a filter mechanism is arranged in the cavity and comprises a lubrication sleeve, a filter cartridge is fixedly connected in the lubrication sleeve, and the filter cartridge is arranged in the cavity. The bottom end of the lubricating sleeve is fixedly connected with a flushing nozzle, the flushing nozzle penetrates through the filter cartridge and is fixedly connected with the filter cartridge, and the top end of the lubricating sleeve is fixedly communicated with an impurity discharging pipe. Through the arrangement of the lubricating sleeve, the filter cartridge, the flushing nozzle and the differential pressure sensor, the device can effectively filter a lubricant, the lubricating effect of the lubricant is improved, the situation that normal use of internal elements of the hydraulic retarder is affected by impurities is avoided, the filter element can be automatically flushed and cleaned, and the service life of the hydraulic retarder is prolonged. The filter element is prevented from being blocked after being used for a long time, the replacement frequency of the filter element is reduced, and the service life of the device is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of hydraulic retarder, specifically a lubricating structure for hydraulic retarder. BACKGROUND

[0002] The hydraulic retarder is a kind of automobile retarder that reduces the speed of vehicle by hydraulic device, and its principle is to change the operation of engine exhaust valve, make engine become air compressor that absorbs power, provide deceleration force to the drive wheel of vehicle, realize the deceleration effect to vehicle.The hydraulic retarder needs to add lubricating structure when using to reduce the wear between parts.

[0003] According to the patent No.CN222085109U, a kind of lubricating structure of hydraulic retarder and vehicle, including transmission rear shell, hydraulic retarder, oil injection pipe, drive gear pair being arranged in the transmission rear shell interior and bearing being arranged in the shell of hydraulic retarder, drive gear pair is connected with the transmission of hydraulic retarder;Oil injection pipe is equipped with first oil injection port and second oil injection port.

[0004] The above scheme can save space in the implementation process, and ensure that gear and bearing are fully lubricated, but the above scheme is not convenient for filtering lubricant in the implementation process, impurities contained in lubricant not only can reduce lubricating effect, but also can affect the normal use of internal elements of hydraulic retarder.Therefore, we provide a kind of lubricating structure for hydraulic retarder to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of lubricating structure for hydraulic retarder to solve the problems in prior art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of lubricating structure for hydraulic retarder, including retarder main body, the inside of the retarder main body is hollow, the inside of the cavity is provided with filter mechanism, the filter mechanism includes lubricating sleeve, the inside of the lubricating sleeve is fixedly connected with filter cylinder, the bottom of the lubricating sleeve is fixedly connected with flush nozzle, flush nozzle penetrates filter cylinder and is fixedly connected with filter cylinder, the top of the lubricating sleeve is fixedly connected with the pipe of removing impurities, the bottom surface of flush nozzle is fixedly connected with air inlet pipe.

[0007] Preferably, the outer surface of the lubricating sleeve is fixedly connected with mounting bracket, the mounting bracket is fixed on the inner wall of retarder main body, and the mounting bracket plays the role of supporting lubricating sleeve.

[0008] Preferably, the outer surface of the lubricating sleeve is fixedly connected with a differential pressure sensor, and the outer surface of the lubricating sleeve is fixedly connected with an oil outlet pipe, and the differential pressure sensor can monitor the pressure difference between the inside and outside of the filter cartridge in real time.

[0009] Preferably, the top end of the retarder body is fixedly connected with an inlet pipe, one end of the inlet pipe is fixedly connected with the lubricating sleeve, and the inlet pipe facilitates pouring of the lubricant into the lubricating sleeve.

[0010] Preferably, the air inlet pipe penetrates through the retarder body and is fixedly connected with the retarder body, the outer surface of the retarder body is fixedly connected with a compressed air filter, one end of the air inlet pipe is fixedly connected with the compressed air filter, and the compressed air filter can provide power for flushing and cleaning of the flushing nozzle.

[0011] Preferably, the impurity discharge pipe penetrates through the retarder body and is fixedly connected with the retarder body, and the end of the impurity discharge pipe is fixedly connected with an electric valve, and the electric valve has the function of controlling the opening and closing of the impurity discharge pipe.

[0012] Preferably, the middle part of the retarder body is fixedly connected with a stator, and the outer part of the stator is rotatably connected with a rotor, and the stator and the rotor provide the device with a retarding effect.

[0013] Preferably, the outer surface of the rotor is fixedly connected with a retarding gear, and the outer part of the retarder body is fixedly connected with a heat exchanger, and the heat exchanger has the function of cooling.

[0014] Compared with the prior art, the device has the following beneficial effects:

[0015] 1. The device can effectively filter the lubricant, improve the lubricating effect of the lubricant, avoid the influence of impurities on the normal use of the internal elements of the hydraulic retarder, and automatically flush and clean the filter element, prevent the filter element from being blocked after long-term use, reduce the replacement frequency of the filter element, and prolong the service life of the device.

[0016] 2. The device is provided with the impurity discharge pipe and the electric valve, the electric valve can control the opening and closing of the impurity discharge pipe, when the electric valve is opened, the gas sprayed by the flushing nozzle can drive the impurities to be discharged from the lubricating sleeve through the impurity discharge pipe under the action of the pressure difference, thereby achieving the automatic cleaning effect of the filter cartridge, greatly reducing the work intensity of replacing and cleaning the filter element, and reducing the use cost of the hydraulic retarder.

[0017] 3. The device is provided with the compressed air filter and the electric valve, which can effectively improve the automation degree of the device, so that the filter mechanism can automatically clean the filter element, greatly reducing the work intensity of replacing and cleaning the filter element, and improving the filtering effect of the filter mechanism. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a partial structural cross-sectional view of the present invention;

[0020] Figure 3 This is a schematic diagram of the filter mechanism of this utility model;

[0021] Figure 4 This is a cross-sectional view of the internal structure of the lubrication sleeve of this utility model;

[0022] Figure 5 This is an exploded view of the filter mechanism of this utility model.

[0023] The diagram shows: 1. Retarder body; 2. Cavity;

[0024] 3. Filtering mechanism; 301. Lubrication sleeve; 302. Filter cartridge; 303. Flushing nozzle; 304. Waste discharge pipe; 305. Air inlet pipe; 306. Mounting bracket; 307. Differential pressure sensor; 308. Oil outlet pipe;

[0025] 4. Inlet pipe; 5. Compressed air filter; 6. Electric valve; 7. Stator; 8. Rotor; 9. Retarding gear; 10. Heat exchanger. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] This utility model provides a technical solution for a lubrication structure for a hydraulic retarder.

[0028] like Figure 1 - Figure 5 As shown, the device includes a retarder body 1, and a heat exchanger 10 is fixedly installed on the outside of the retarder body 1. The heat exchanger 10 allows the working fluid inside the retarder body 1 to circulate, transferring heat to the cooling water, which is then dissipated through the engine cooling system. This ensures the normal operation of the hydraulic retarder and prevents performance from being affected or damaged due to excessive temperature. The retarder body 1 includes a housing and an integrated controller, among other components. All mechanical and electrical components involved in this application are prior art and will not be described in detail here.

[0029] The middle part of the retarder body 1 is fixedly connected with a stator 7, the outer part of the stator 7 is rotatably connected with a rotor 8, the outer surface of the rotor 8 is fixedly connected with a retarder gear 9, and the stator 7 and the rotor 8 constitute a retardation mechanism of the hydraulic retarder, that is, when the rotor 8 rotates, a torque is generated on the stator 7 through the working liquid, and the reverse torque of the stator 7 becomes the braking torque of the rotor 8, thereby providing a deceleration force for the engine, and the retarder gear 9 serves to mesh with the engine rotating shaft, thereby providing a connecting bridge between the hydraulic retarder and the engine.

[0030] The inside of the retarder body 1 is provided with a cavity 2, which provides space for the working liquid inside the retarder to flow as required, and the inside of the cavity 2 is also provided with a circulating path for the lubricant to flow, which is a prior art and can be produced according to the requirements of the retarder, and is not described in detail in this application. Through the setting of the retardation path, the lubricant can flow to each position that needs to be lubricated.

[0031] The inside of the cavity 2 is provided with a filtering mechanism 3, which can filter out the impurities carried in the lubricant to improve the cleanliness of the lubricant, effectively improve the lubrication effect of the lubricant, and protect the key parts of the hydraulic retarder, prolong the service life of the hydraulic retarder, and ensure the long-term stable operation of the system.

[0032] The filtering mechanism 3 comprises a lubricating sleeve 301, the top end of the retarder body 1 is fixedly connected with an inlet pipe 4, one end of the inlet pipe 4 is fixedly communicated with the lubricating sleeve 301, the inlet pipe 4 is a pipeline for adding lubricant, and a valve or a sealing plug needs to be installed on the inlet pipe 4 to avoid dust and other impurities entering the lubricating sleeve 301 through the inlet pipe 4 to reduce the cleanliness of the lubricant. The lubricant storage tank can be connected externally, and the amount of lubricant added can be controlled through the electric control valve to improve the automation degree of the device.

[0033] The inside of the lubricating sleeve 301 is fixedly connected with a filter cylinder 302, which can filter out the impurities carried in the lubricant to improve the cleanliness of the lubricant. The clean lubricant will pass through the filter hole of the filter cylinder 302 and flow into the circulating path through the oil outlet pipe 308, while the impurities will be retained in the inside of the filter cylinder 302, avoiding affecting the normal use of the internal elements of the retarder.

[0034] The outer surface of the lubricating sleeve 301 is fixedly communicated with an oil outlet pipe 308, and the clean lubricant filtered through the cavity 2 can enter the lubricant circulating path inside the cavity 2 along the oil outlet pipe 308, so that the lubricant can lubricate multiple positions inside the retarder, reducing the wear between parts inside the device and prolonging the service life of the hydraulic retarder.

[0035] The bottom end of the lubricating sleeve 301 is fixedly connected with a flushing nozzle 303, the flushing nozzle 303 penetrates through the filter cartridge 302 and is fixedly connected with the filter cartridge 302, the flushing nozzle 303 can spray a large amount of compressed clean gas, so that the impurities remaining in the filter cartridge 302 are flushed to the top end of the filter cartridge 302, the impurities can be discharged from the device through the impurity discharge pipe 304, the filter core is prevented from being blocked after long-time use, and the replacement frequency of the filter core is reduced, the flushing nozzle 303 has the function of one-way opening, in the case that the compressed air filter 5 does not supply air, the flushing nozzle 303 will remain closed state, and the lubricant will not enter the flushing nozzle 303.

[0036] The top end of the lubricating sleeve 301 is fixedly connected with the impurity discharge pipe 304, the impurity discharge pipe 304 penetrates through the retarder body 1 and is fixedly connected with the retarder body 1, the end of the impurity discharge pipe 304 is fixedly installed with the electric valve 6, the electric valve 6 can control the opening and closing of the impurity discharge pipe 304, when the electric valve 6 is opened, the gas sprayed by the flushing nozzle 303 will drive the impurities to be discharged from the lubricating sleeve 301 through the impurity discharge pipe 304 under the action of the pressure difference, so that the automatic cleaning effect of the filter cartridge 302 is achieved, the working strength of replacing and cleaning the filter core is greatly reduced, the use cost of the hydraulic retarder is reduced, and the end of the impurity discharge pipe 304 can be installed with a collection bag made of polyethylene or other materials to prevent the blown impurities from floating.

[0037] The bottom surface of the flushing nozzle 303 is fixedly connected with the air inlet pipe 305, the air inlet pipe 305 penetrates through the retarder body 1 and is fixedly connected with the retarder body 1, the outer surface of the retarder body 1 is fixedly installed with the compressed air filter 5, one end of the air inlet pipe 305 is fixedly connected with the compressed air filter 5, and the compressed air filter 5 can filter and compress air, so that the clean gas is delivered into the flushing nozzle 303 through the air inlet pipe 305, and support is provided for the flushing operation of the flushing nozzle 303.

[0038] The outer surface of the lubricating sleeve 301 is fixedly connected with the mounting bracket 306, the mounting bracket 306 is fixed on the inner wall of the retarder body 1, the mounting bracket 306 plays a role in fixing the lubricating sleeve 301, and can keep the lubricating sleeve 301 and the filter cartridge 302 in a stable state during filtering of the lubricant, and improve the operation stability of the filtering mechanism 3.

[0039] The outer surface of the lubricating sleeve 301 is fixedly installed with the pressure difference sensor 307, the pressure difference sensor 307 can monitor the pressure conditions on both sides of the filter cartridge 302 in real time, so as to sense the blockage condition in the filter cartridge 302, when the pressure difference reaches the set value, it indicates that the filter cartridge 302 is seriously blocked and needs to be cleaned, at this time the pressure difference sensor 307 sends a signal to the external controller, so that the controller starts the compressed air filter 5 to perform flushing and cleaning operation on the filter cartridge 302 after lubrication is completed.

[0040] Working principle: when it is necessary to add lubricant to the inside of the hydraulic retarder, the worker pours the lubricant into the lubricating sleeve 301 through the access pipe 4, the filter cartridge 302 filters the incoming lubricant, blocking impurities inside the filter cartridge 302, and the clean lubricant enters the circulation path through the oil outlet pipe 308, thereby lubricating the device, and when the inside of the filter cartridge 302 is blocked to a certain extent by impurities, the differential pressure sensor 307 sends a warning signal to the controller, which cleans the filter cartridge 302 by starting the compressed air filter 5 and the electric valve 6, the start of the compressed air filter 5 can transmit a large amount of compressed clean gas to the flushing nozzle 303 through the air inlet pipe 305, the flushing nozzle 303 sprays compressed gas into the filter cartridge 302, thereby flushing the impurities inside the filter cartridge 302, the electric valve 6 can control the opening of the impurity discharge pipe 304, so that the gas can discharge the impurities through the impurity discharge pipe 304, thereby completing the cleaning work of the filter cartridge 302, and ensuring the normal use of the filter cartridge 302.

[0041] It is apparent for a person skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

Claims

1. A lubrication structure for a hydraulic retarder, characterized by: Including the retarder body (1), the inside of the retarder body (1) is provided with a cavity (2), the inside of the cavity (2) is provided with a filtering mechanism (3); The filtering mechanism (3) includes a lubricating sleeve (301), the inside of the lubricating sleeve (301) is fixedly connected with a filter cylinder (302), the bottom end of the lubricating sleeve (301) is fixedly connected with a flushing nozzle (303), the flushing nozzle (303) penetrates through the filter cylinder (302) and is fixedly connected with the filter cylinder (302), the top end of the lubricating sleeve (301) is fixedly communicated with a impurity removal pipe (304), the bottom surface of the flushing nozzle (303) is fixedly communicated with an air inlet pipe (305).

2. A lubrication structure for a hydraulic retarder according to claim 1, characterized in that: The outer surface of the lubricating sleeve (301) is fixedly connected with a mounting bracket (306), and the mounting bracket (306) is fixed on the inner wall of the retarder body (1).

3. A lubrication structure for a hydraulic retarder according to claim 1, characterized in that: The outer surface of the lubricating sleeve (301) is fixedly connected with a differential pressure sensor (307), and the outer surface of the lubricating sleeve (301) is fixedly communicated with an oil outlet pipe (308).

4. A lubrication structure for a hydraulic retarder according to claim 1, characterized in that: The top end of the retarder body (1) is fixedly connected with an inlet pipe (4), one end of the inlet pipe (4) is fixedly communicated with the lubricating sleeve (301).

5. A lubrication structure for a hydraulic retarder according to claim 2, characterized in that: The air inlet pipe (305) penetrates through the retarder body (1) and is fixedly connected with the retarder body (1), the outer surface of the retarder body (1) is fixedly connected with a compressed air filter (5), and one end of the air inlet pipe (305) is fixedly communicated with the compressed air filter (5).

6. A lubrication structure for a hydraulic retarder according to claim 1, characterized in that: The impurity removal pipe (304) penetrates through the retarder body (1) and is fixedly connected with the retarder body (1), and the end of the impurity removal pipe (304) is fixedly connected with an electric valve (6).

7. A lubrication structure for a hydraulic retarder according to claim 1, characterized in that: The middle part of the retarder body (1) is fixedly connected with a stator (7), and the outer part of the stator (7) is rotatably connected with a rotor (8).

8. A lubrication arrangement for a hydraulic retarder according to claim 7, characterized in that: The outer surface of the rotor (8) is fixedly connected with a retarder gear (9), and the outer part of the retarder body (1) is fixedly connected with a heat exchanger (10).

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