Novel cross shaft universal joint

Abstract

The utility model relates to the technical field of transmission shaft parts, and discloses a novel cross shaft universal joint which comprises a cross shaft body, a shaft neck is fixedly connected to the periphery of the cross shaft body, a shaft sleeve is arranged on the outer side of the shaft neck in a sleeved mode, a rotatable roller pin is arranged on the inner wall of the shaft sleeve, and the roller pin is fixedly connected with the shaft neck. The rolling needle rotates between the inner wall of the shaft sleeve and the outer side of the shaft neck, and is characterized in that the cross shaft body is sleeved with two symmetrically-arranged protective half shells, any protective half shell is provided with a heating assembly, and the heating assembly is used for keeping lubricating oil in the protective half shell in a lubricable state all the time; through the arrangement of the protective half shell and the heating assembly, the problems that lubricating oil in an existing structure is prone to low-temperature solidification, pollution is caused by invasion of external impurities, and maintenance is frequent are effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to transmission shaft component technical field, concretely is a novel cross axle universal joint. BACKGROUND

[0002] The universal joint is an important part in the automobile industry, the cross axle universal joint is used for the transmission between two transmission shafts intersecting with the axis, and is widely applied to the transmission system of the automobile. It is also widely applied in the steering gear of the automobile. The steering gear is also called steering machine or direction machine. It is the most important operating part in the steering system of the automobile. Its function is to increase the force transmitted from the steering wheel to the steering transmission mechanism and change the transmission direction of the force.

[0003] The utility model discloses a cross axle universal joint discloses a cross axle universal joint, including cross axle body and needle bearing, the inside of cross axle body is provided with oil storage cavity and four oil guide, four oil guides are connected with oil storage cavity and axle head respectively, and the oil guide is provided with the oil filter section, and the oil filter section is provided with a plurality of ball bearings, the most oil liquid is stored in the oil storage cavity through the oil filter section, slowly infiltrates into the oil filter section in the use process, then is infiltrated to the needle bearing, can keep longer after once oil injection, avoids frequent oiling, and the maintenance step is simplified.

[0004] The device has obvious deficiencies in the use process. First, the lubricating oil is easy to solidify in the low-temperature environment, the viscosity increases, the flowability is poor, the shaft neck and the shaft sleeve and the needle are difficult to form effective lubrication, and the part wear is aggravated. Second, the sealing protection structure is easy to age and fail, is difficult to resist the invasion of dust, moisture and other external impurities, causes the lubricating oil pollution, and shortens the service life of the cross axle. UTILITY MODEL CONTENTS

[0005] (I) technical problem solved

[0006] In view of the deficiencies of the prior art, the utility model provides a novel cross axle universal joint, which has the advantages of active maintenance of lubricating oil state and enhanced sealing, and solves the problems of easy solidification of lubricating oil in the prior structure, pollution caused by invasion of external impurities and frequent maintenance.

[0007] (II) technical scheme

[0008] In order to achieve the above object, the utility model provides the following technical scheme: a novel cross axle universal joint, including cross axle body, the four around fixed connection of cross axle body has the shaft neck, the outside of shaft neck is equipped with the shaft sleeve, is provided with rotatable needle roller on the inner wall of shaft sleeve, the needle roller rotation with the inner wall of shaft sleeve and the outside of shaft neck, its characterized in that, the cross axle body is equipped with two symmetrical protection half -shell, and heating assembly is provided on any protection half -shell, is used for always keeping the lubricating state of the lubricating oil in the protection half -shell.

[0009] Preferably, the heating assembly comprises:

[0010] Groove, four settings, respectively set up in the bottom surface of any protection half -shell inside;

[0011] Heating sheet, setting is in the inside of groove;

[0012] Controller, fixed setting is in the outside of protection half -shell, and the inside of controller is provided with battery;

[0013] Wherein, the heating sheet is electrically connected to the controller through the line.

[0014] Preferably, the bottom of the groove is also provided with a fixing groove on the protection half -shell, and a pressure sensor is fixedly arranged in the fixing groove, and a detection end of the pressure sensor is located on a side of the heating sheet away from the grease.

[0015] Preferably, the heating sheet is made of conductive material, and the heating sheet is made of material with good thermal conductivity.

[0016] Preferably, the controller further comprises a temperature sensor for detecting the temperature inside the protection half -shell in real time, and the temperature sensor is electrically connected to the controller and controls the working state of the heating sheet.

[0017] Preferably, a fixing hole is formed at a diagonal position of any protection half -shell, and another two diagonal positions of the protection half -shell are provided with a fixing rod matched with the fixing hole, and an oil inlet is formed in any protection half -shell.

[0018] Preferably, a sealing ring is arranged at the edge of the protection half -shell, the sealing ring is made of high-temperature-resistant and oil-resistant rubber material, and is used for enhancing the sealing performance of the two protection half -shells after splicing to prevent foreign matters from entering.

[0019] (Three) beneficial effects

[0020] Compared with the prior art, the utility model provides a novel cross axle universal joint, which has the following beneficial effects:

[0021] 1. The novel cross shaft universal joint, through the recess is set in the four corners position inside two protection half shells, the heating sheet is arranged in each recess, the pressure sensor is fixedly arranged at the bottom of the heating sheet, when the cross shaft body works at different temperatures, the lubricating oil in the cross shaft body may be solidified when the temperature is too low, at this time, the controller is fixedly arranged outside the protection half shell, the battery and other parts are arranged in the controller, the controller is electrically connected with the heating sheet, so that the heating sheet can heat the lubricating oil, so that the lubricating oil can always keep lubricating state, and when the lubricating oil is heated, the pressure sensor can monitor the state and amount of the lubricating oil in the two protection half shells in real time, so as to facilitate the staff to monitor the state of the cross shaft body.

[0022] 2. The novel cross shaft universal joint, through the recess is set in the four corners position inside two protection half shells, the heating sheet is arranged in each recess, the pressure sensor is fixedly arranged at the bottom of the heating sheet, when the cross shaft body works at different temperatures, the lubricating oil in the cross shaft body may be solidified when the temperature is too low, at this time, the controller is fixedly arranged outside the protection half shell, the battery and other parts are arranged in the controller, the controller is electrically connected with the heating sheet, so that the heating sheet can heat the lubricating oil, so that the lubricating oil can always keep lubricating state, and when the lubricating oil is heated, the pressure sensor can monitor the state and amount of the lubricating oil in the two protection half shells in real time, so as to facilitate the staff to monitor the state of the cross shaft body. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the structure schematic view of the utility model.

[0024] Figure 2 It is the structure section view schematic view of the utility model.

[0025] Figure 3 It is the structure section view schematic view of the utility model from another angle.

[0026] Figure 4 It is the structure section view schematic view of the utility model.

[0027] Figure 5 It is the structure section view schematic view of the utility model.

[0028] In the drawing: 100, cross shaft body;200, journal;300, shaft sleeve;310, needle roller;510, protection half shell;511, fixed hole;512, fixed rod;520, oil inlet;530, controller;540, circuit;550, recess;560, fixed groove;570, pressure sensor;580, heating sheet. DETAILED DESCRIPTION

[0029] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0030] In the description of the present application, it should be understood that the directions or position relationships indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the directions or position relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular direction, be constructed and operated in a particular direction, and therefore cannot be understood as limiting the present application.

[0031] In addition, fixed connection refers to the connection of parts or components after being fixed without any relative movement; transmission connection refers to a connection mode of transmitting mechanical movement or torque to other working components through a transmission member; sliding connection refers to a connection mode in which two objects are in contact but not fixed, and can slide relative to each other; and rotating connection refers to a connection mode in which two objects are in contact but not fixed, and can rotate relative to each other.

[0032] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0033] Embodiment one:

[0034] The present embodiment provides a new type of cross axle universal joint, which has the following technical features.

[0035] Please refer to Figures 1-5 A new type of cross axle universal joint, comprising a cross axle body 100, a shaft neck 200 is fixedly connected around the cross axle body 100, a shaft sleeve (300) is sleeved on the outer side of the shaft neck 200, a rotatable needle roller 310 is arranged on the inner wall of the shaft sleeve 300, the needle roller 310 rotates between the inner wall of the shaft sleeve 300 and the outer side of the shaft neck 200, characterized in that two symmetrical protective half shells 510 are sleeved on the outer side of the cross axle body 100, a heating assembly is arranged on any protective half shell 510, and the lubricating oil inside the protective half shell 510 is always kept in a lubricable state.

[0036] Further, the heating assembly comprises:

[0037] A groove 550 is arranged on the bottom of each protective half-shell 510.

[0038] A heating sheet 580 is arranged in the groove 550.

[0039] A controller 530 is arranged on the outside of the protective half-shell 510, and the controller 530 is internally provided with a battery.

[0040] The heating sheet 580 is electrically connected to the controller 530 through a wire 540.

[0041] Further, a fixing groove 560 is arranged on the bottom of the groove 550, and a pressure sensor 570 is fixedly arranged in the fixing groove 560, and the detection end of the pressure sensor 570 is arranged on the side of the heating sheet 580 away from the grease.

[0042] Further, the heating sheet 580 is made of conductive material, and the heating sheet 580 is made of material with good thermal conductivity.

[0043] Further, the controller 530 is internally provided with a temperature sensor for real-time monitoring of the temperature inside the protective half-shell 510, and the temperature sensor is electrically connected to the controller 530 and controls the working state of the heating sheet 580.

[0044] Further, a fixing hole 511 is arranged at the diagonal position of each protective half-shell 510, and the other two diagonal positions of the protective half-shell 510 are provided with a fixing rod 512 matched with the fixing hole 511, and an oil inlet 520 is arranged on each protective half-shell 510.

[0045] Further, a sealing ring is arranged at the edge of the protective half-shell 510, and the sealing ring is made of high-temperature-resistant and oil-resistant rubber material, which is used to enhance the sealing performance of the two protective half-shells 510 after splicing and prevent foreign matters from entering.

[0046] Working principle: through the fixed setting of the journal 200 on the four sides of the cross shaft body 100, the outer side of the journal 200 is sleeved with the shaft sleeve 300, the inner wall of the shaft sleeve 300 is provided with the needle roller 310, the needle roller 310 can rotate in the journal 200 and the inside of the shaft sleeve 300, two protective half shells 510 are arranged on the outer side of the cross shaft body 100, the two diagonal positions of the protective half shell 510 are respectively provided with a fixed hole 511, and the other two diagonal positions are fixedly provided with a fixed rod 512. Through the cooperation between the fixed rod 512 and the fixed hole 511, the two protective half shells 510 can be fixedly arranged on the outer side of the cross shaft body 100, so that the cross shaft body 100 and the second oil seal 420 at the root of the cross shaft body 100 can be protected. At the same time, an oil inlet 520 is formed in the center of the two protective half shells 510, and the worker can inject lubricating oil into the inside of the two protective half shells 510 through the oil inlet 520, so that the cross shaft body 100 can be in the state of being wrapped by the lubricating oil, thereby protecting the cross shaft body 100 from corrosion and oxidation, and prolonging the service life of the whole device. In addition, recesses 550 are formed in the four corner positions of the inner bottom plate of the two protective half shells 510, heating pieces 580 are slidably arranged in the recesses 550, a controller 530 is fixedly arranged on the outer side of the protective half shell 510, the controller 530 is provided with an external power supply, and a temperature sensor is further arranged in the controller 530. The temperature sensor can monitor the temperature state in the two protective half shells 510 in real time, and the controller 530 is connected to the heating piece 580 through a line 540. In this way, the heating piece 580 can be heated by the controller 530 in extreme environment, so that the lubricating oil frozen in the protective half shell 510 can be heated, so that the state of the lubricating oil in the two protective half shells 510 becomes flowing, thereby protecting the cross shaft body 100. At the same time, a fixed groove 560 is formed in the protective half shell 510 below the recess 550, and a pressure sensor 570 is fixedly arranged in the fixed groove 560. The detection end of the pressure sensor 570 is in contact with the heating piece 580. In this way, when the lubricating oil is frozen, the pressure sensor 570 cannot detect the pressure. At this time, the controller 530 can control the heating of the heating piece 580 to make the lubricating oil flow. When the pressure value detected by the pressure sensor 570 becomes smaller and smaller, it means that the amount of lubricating oil in the protective half shell 510 becomes smaller and smaller. At this time, artificial lubricating oil needs to be added.

[0047] In conclusion, the new type of cross axle universal joint, through the recess 550 is set up in the two protection half shell 510 inside four corners position, the heating piece 580 is arranged in each recess 550 inside sliding, the pressure sensor 570 is fixedly arranged at the bottom of the heating piece 580, when the cross axle body 100 works at different temperatures, the lubricating oil in the cross axle body 100 can be solidified when the temperature is too low, at this time, the controller 530 is fixedly arranged outside the protection half shell 510, the battery and other parts are arranged in the controller 530, the controller 530 is electrically connected with the heating piece 580, so that the heating piece 580 can control the heating of the lubricating oil, so that the lubricating oil can always keep lubricating state, and when the lubricating oil is heated, the pressure sensor 570 can monitor the state and amount of the lubricating oil in the two protection half shells 510 in real time, so that the staff can monitor the state of the cross axle body 100.

[0048] In conclusion, the new type of cross axle universal joint, through the recess 550 is set up in the two protection half shell 510 inside four corners position, the heating piece 580 is arranged in each recess 550 inside sliding, the pressure sensor 570 is fixedly arranged at the bottom of the heating piece 580, when the cross axle body 100 works at different temperatures, the lubricating oil in the cross axle body 100 can be solidified when the temperature is too low, at this time, the controller 530 is fixedly arranged outside the protection half shell 510, the battery and other parts are arranged in the controller 530, the controller 530 is electrically connected with the heating piece 580, so that the heating piece 580 can control the heating of the lubricating oil, so that the lubricating oil can always keep lubricating state, and when the lubricating oil is heated, the pressure sensor 570 can monitor the state and amount of the lubricating oil in the two protection half shells 510 in real time, so that the staff can monitor the state of the cross axle body 100.

[0049] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or action from another entity or action, without necessarily requiring or implying that there is any such actual relationship or order between these entities or actions. Moreover, the terms "comprises", "comprising", or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or apparatus that includes a list of elements does not only include those elements, but also includes other elements not explicitly listed, or further includes elements inherent in such a process, method, article, or apparatus. Without more limitations, the element defined by the statement "comprises a" does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the said element.

[0050] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A novel universal joint, comprising a universal joint body (100), wherein journals (200) are fixedly connected to the periphery of the universal joint body (100), a bushing (300) is fitted onto the outer side of the journals (200), and a rotatable needle roller (310) is provided on the inner wall of the bushing (300), wherein the needle roller (310) rotates between the inner wall of the bushing (300) and the outer side of the journal (200), characterized in that: The cross shaft body (100) is sleeved with two symmetrical protection half shells (510), and each protection half shell (510) is provided with a heating assembly for keeping the lubricating oil inside the protection half shell (510) always lubricated.

2. A new type of cross axle universal joint according to claim 1, characterized in that, The heating assembly comprises: A groove (550) is arranged on the bottom surface of each protection half shell (510). A heating sheet (580) is arranged in the groove (550). A controller (530) is fixedly arranged on the outside of the protection half shell (510), and the controller (530) is provided with a battery. The heating sheet (580) is electrically connected to the controller (530) through a wire (540).

3. A new type of cross axle universal joint according to claim 2, characterized in that, A fixing groove (560) is arranged on the bottom of the protection half shell (510), and a pressure sensor (570) is fixedly arranged in the fixing groove (560).

4. A new type of cross axle universal joint according to claim 2, characterized in that, The heating sheet (580) is made of an electrically conductive material, and the heating sheet (580) is made of a material with good heat conductivity.

5. A new type of cross axle universal joint according to claim 2, characterized in that, The controller (530) is further provided with a temperature sensor for detecting the temperature inside the protection half shell (510) in real time, and the temperature sensor is electrically connected to the controller (530) and controls the working state of the heating sheet (580).

6. A new type of cross axle universal joint according to claim 1, characterized in that, A fixing hole (511) is arranged at a diagonal position of each protection half shell (510), and the other two diagonal positions of the protection half shell (510) are provided with a fixing rod (512) matched with the fixing hole (511).

7. A new type of cross axle universal joint as claimed in claim 1, wherein, An oil injection hole (520) is arranged on each protection half shell (510). A sealing ring is arranged at the edge of the protection half shell (510), and the sealing ring is made of a high-temperature-resistant and oil-resistant rubber material to enhance the sealing performance of the two protection half shells (510) after splicing and prevent foreign matters from entering.

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