Cross joint protection mechanism

Abstract

The utility model discloses a cross joint protection mechanism, which belongs to the technical field of cross joints and comprises a protection component mounted on a cross joint main body, four journals are arranged on the cross joint main body, the protection component comprises a plurality of mounting rings fixed on the cross joint main body, the mounting rings are in one-to-one correspondence with the four journals, and the four journals are fixed on the cross joint main body. A protective sleeve is detachably connected to the interior of each mounting ring, a first circular plate is fixedly arranged in each protective sleeve, a second circular plate is arranged at the top of each first circular plate, lubricating oil is stored between each second circular plate and the corresponding protective sleeve, a plurality of circular holes are formed in the tops of the first circular plates and the tops of the second circular plates, and an adjusting assembly is fixedly arranged at the center of the top end of each second circular plate. The shaft neck of the cross joint body is sleeved with the protective sleeve for sealing protection, oxidation rusting of the shaft neck can be reduced, meanwhile, the position of the second round plate is adjusted, lubricating oil flows to the shaft neck for lubrication through the round hole and the sponge block, damage to the shaft neck due to too large friction force is avoided, the shaft neck is protected, and the service life of the shaft neck is prolonged. And the shaft neck can rotate more smoothly.

Description

TECHNICAL FIELD

[0001] The utility model relates to cross joint technical field belongs to a cross joint protection mechanism. BACKGROUND

[0002] With the continuous development of China's automobile industry and the continuous improvement of automobile quality, people's requirements for the performance and cost of automobile parts are also higher and higher. Among them, the automobile steering column assembly, as a component connecting the steering wheel and the steering mechanism, is an important component for transmitting torque. In the past, the vehicle steering device includes a steering column, a universal joint, an intermediate shaft, an output shaft, and a steering mechanism on the vehicle side. The steering wheel connected to the steering column is connected to the steering mechanism on the vehicle side through the steering column, the cross joint, the intermediate shaft, and the output shaft, and the steering mechanism is driven by operating the steering wheel to make the wheels connected to the steering mechanism swing left and right to realize the steering of the automobile. The existing cross joint generally includes a cross shaft and a plurality of needle bearings installed on the cross shaft, and the needle bearings are sleeved on the shafts of the cross shaft.

[0003] For example, the prior art with publication number CN221974126U discloses a cross shaft universal joint, which comprises a cross shaft body, an axle neck is arranged on the outer side of the cross shaft body, an installation block is arranged on one side of the axle neck, a connecting column is arranged at the bottom end of the installation block, an oil inlet is arranged on one side of the cross shaft body, an installation groove is arranged on the inner side of the installation block, a bearing is arranged on the inner side of the installation groove, an installation block is arranged in the bearing, and a sealing ring is arranged on the outer side of the installation groove.

[0004] However, the above-mentioned prior art has the following problems when in use: the axle neck of the cross joint is easy to rust when in contact with air, and after long-term rotation, the friction at the axle neck will increase, which will affect the smooth rotation of the cross joint, and long-term friction will cause damage to the cross joint. Based on this, the utility model provides a cross joint protection mechanism with lubricating function. UTILITY MODEL CONTENT

[0005] Therefore, the utility model provides a cross joint protection mechanism to solve the problem that the axle neck of the cross joint is easy to rust when in contact with air, the friction increases, which affects the smooth rotation of the cross joint and causes damage to the cross joint.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] The cross shaft protection mechanism, including the protection assembly installed on the cross shaft body, the cross shaft body is provided with four shaft necks, the protection assembly includes a plurality of mounting rings fixed on the cross shaft body, and the mounting rings are one-to-one corresponding to the four shaft necks, each mounting ring is detachably connected with a protection sleeve inside, the protection sleeve is sleeved outside the shaft neck on the cross shaft body, which can play a sealing protection role, a circular plate one is fixed inside the protection sleeve, a circular plate two is arranged on the top of the circular plate one, and lubricating oil is stored between the circular plate two and the protection sleeve, the stored lubricating oil can be used for lubricating the shaft neck on the cross shaft body, a plurality of circular holes are arranged on the top of the circular plate one and the circular plate two, an adjusting assembly is fixedly arranged at the center of the top of the circular plate two, so that the position of the circular plate two can be adjusted by the staff, so that the staff can adjust the oil output of the lubricating oil, and a sponge block is fixedly arranged on the bottom of the circular plate one, and the bottom of the sponge block is in contact with the top of the shaft neck, so that the lubricating oil can flow slowly to the shaft neck.

[0008] Further, the adjusting assembly includes an adjusting rod fixed at the center of the top of the circular plate two, which facilitates the staff to adjust the position of the circular plate two, the adjusting rod penetrates out of the top of the protection sleeve, and the adjusting rod is rotatably connected with the protection sleeve, an oil injection hole is arranged on the top of the adjusting rod, a plurality of oil outlet holes are arranged on the outer wall of the adjusting rod and communicated with the oil injection hole, and the plurality of oil outlet holes are arranged inside the protection sleeve.

[0009] Further, a sealing plug for sealing the oil injection hole is threadedly connected with the top end of the adjusting rod, a spherical block is fixedly arranged on the top of the sealing plug, and the spherical block facilitates the staff to twist the sealing plug.

[0010] Further, a ring plate is fixedly arranged on the top of the protection sleeve, the ring plate is sleeved outside the adjusting rod, and the ring plate can play a certain protection role outside the adjusting rod.

[0011] Further, a plurality of annular insertion grooves are arranged on the outer wall of the cross shaft body, a rubber sealing ring for improving the sealing performance is arranged between each protection sleeve and each annular insertion groove, and when the protection sleeve is inserted into the annular insertion groove, the rubber sealing ring can greatly improve the sealing performance between the protection sleeve and the annular insertion groove.

[0012] Further, a limiting block is fixedly arranged on the inner wall of each mounting ring, a limiting groove matched with the limiting block is arranged on the outer wall of each protection sleeve, and the limiting block is arranged in the limiting groove, so that the staff can quickly install the protection sleeve by means of the cooperation of the limiting block and the limiting groove.

[0013] Further, wear-resistant paint is applied to the outer wall of each protection sleeve, red paint is applied to the outer wall of the wear-resistant paint, and the wear-resistant paint can improve the wear resistance of the surface of the protection sleeve, and the red paint can play a warning role.

[0014] Further, the mounting ring outer wall is provided with a plurality of receiving grooves, and the mounting ring and the protective sleeve are detachably connected through a plurality of bolts, so that the staff can conveniently disassemble and replace the protective sleeve.

[0015] The utility model has the advantages of:

[0016] 1. The protective sleeve is sleeved on the cross shaft body journal to seal and protect, which can reduce oxidation and rust at the journal, adjust the position of the second circular plate, make the lubricating oil flow to the journal through the round holes and the sponge block for lubrication, avoid excessive friction damage of the journal, protect the journal, and make the journal rotate more smoothly.

[0017] 2. The position of the round holes on the first and second circular plates can be changed by adjusting the second circular plate, the amount of lubricating oil can be adjusted, the round holes on the second circular plate are staggered with the round holes on the first circular plate after lubrication is not needed, the lubricating oil can be prevented from flowing downward, the structure is simple, and the operation is very fast. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only exemplary, and for those skilled in the art, other implementation drawings can be obtained without creative labor on the basis of the provided drawings.

[0019] The structures, proportions, sizes, etc. shown in the specification are only used to cooperate with the content disclosed in the specification, to be understood and read by those skilled in the art, and do not define the limiting conditions of the implementation of the utility model, so they do not have technical significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effect and purpose of the utility model, should still fall within the scope of the disclosed technology.

[0020] Figure 1 The utility model provides a whole structure schematic view;

[0021] Figure 2 The utility model provides a protective sleeve and mounting ring structure diagram;

[0022] Figure 3 The utility model provides a protective sleeve and mounting ring structure diagram;

[0023] Figure 4 The utility model provides a protective sleeve, a first circular plate, a second circular plate and a sponge block sectional view;

[0024] Figure 5 This is a structural diagram of the sealing plug and adjusting rod provided by the utility model.

[0025] In the figure: 1, cross-head body; 101, journal; 2, protection assembly; 3, adjustment assembly; 4, sponge block; 5, sealing plug; 6, spherical block; 7, ring plate; 8, annular slot; 9, rubber sealing ring; 10, limit block; 11, limit slot; 12, storage slot;

[0026] 201, mounting ring; 202, protective sleeve; 203, circular plate 1; 204, circular plate 2; 205, circular hole;

[0027] 301, adjusting rod; 302, oil filling hole; 303, oil outlet hole. DETAILED DESCRIPTION

[0028] The following describes the implementation of the present invention through specific embodiments. Those skilled in the art can readily understand the other advantages and benefits of the present invention from the contents disclosed in this specification. Obviously, the embodiments described are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0029] Refer to the instruction manual Figures 1-5 The utility model provides a cross-shaped protection mechanism, including a protection component 2 installed on a cross-shaped main body 1, and four shaft necks 101 are provided on the cross-shaped main body 1. The protection component 2 includes a plurality of mounting rings 201 fixed on the cross-shaped main body 1, and the plurality of mounting rings 201 correspond one to one to the four shaft necks 101. A protection sleeve 202 is detachably connected to the interior of each mounting ring 201, and a circular plate 1 203 is fixedly provided inside the protection sleeve 202. A circular plate 204 is provided on the top of the circular plate 1 203. Lubricating oil is stored between the circular plate 204 and the protective sleeve 202. A plurality of circular holes 205 are opened on the top of the circular plate 1 203 and the circular plate 204. An adjusting component 3 is fixedly provided at the center of the top of the circular plate 204. A sponge block 4 is fixedly provided at the bottom of the circular plate 1 203. The bottom of the sponge block 4 is in contact with the top of the shaft neck 101. The use of the sponge block 4 can make the lubricating oil slowly flow to the shaft neck 101 on the cross-shaped main body 1.

[0030] The adjustment component 3 includes an adjustment rod 301 fixed at the top center of the second circular plate 204, which is convenient for the staff to adjust the position of the second circular plate 204 and thus control the oil output of the lubricating oil.

[0031] The outer wall of the cross-shaped main body 1 is provided with a plurality of annular insertion grooves 8, and a rubber sealing ring 9 for improving the sealing performance is arranged between each protective sleeve 202 and each annular insertion groove 8. When the protective sleeve 202 is inserted into the annular insertion groove 8, the rubber sealing ring 9 can greatly improve the sealing performance between the protective sleeve 202 and the annular insertion groove 8.

[0032] The inner wall of each mounting ring 201 is fixedly provided with a limiting block 10, and the outer wall of each protective sleeve 202 is provided with a limiting groove 11 matched with the limiting block 10. The limiting block 10 is arranged in the limiting groove 11. By matching the limiting block 10 with the limiting groove 11, the protective sleeve 202 can be quickly installed by the staff, and the offset of the protective sleeve 202 is prevented to affect the installation efficiency.

[0033] The outer wall of the mounting ring 201 is provided with a plurality of accommodation grooves 12. The mounting ring 201 and the protective sleeve 202 are detachably connected together through a plurality of bolts, which facilitates the staff to disassemble and replace the protective sleeve 202.

[0034] In use, the plurality of protective sleeves 202 are respectively sleeved outside the plurality of shaft necks 101 on the cross-shaped main body 1, and the protective sleeves 202 play a sealing protection role. Oxidation and rust at the shaft neck 101 can be prevented. Meanwhile, rotating the adjusting rod 301 drives the circular plate two 204 to rotate, so that the plurality of circular holes 205 on the circular plate two 204 are communicated with the plurality of circular holes 205 on the circular plate one 203. Then, the lubricating oil can flow to the sponge block 4, and then flow to the shaft neck 101 for lubrication, so as to avoid damage of the shaft neck 101 due to excessive friction. In this way, the shaft neck 101 is protected, and the rotation of the shaft neck 101 is smoother. Moreover, the adjusting rod 301 can be twisted to adjust the circular plate two 204, so that the positions of the circular holes 205 on the circular plate one 203 and the circular plate two 204 can be changed, and the outflow amount of the lubricating oil can be adjusted. When lubrication is not needed, the circular holes 205 are misaligned with the circular holes 205 on the circular plate one 203 by rotating the circular plate two 204, so that the lubricating oil can not continue to flow downward to cause waste. The structure is simple, and the operation is very fast.

[0035] Referring to the drawings in the specification Figures 1-5 The top of the adjusting rod 301 is provided with an oil injection hole 302, and the outer wall of the adjusting rod 301 is provided with a plurality of oil outlet holes 303 communicated with the oil injection hole 302, and the plurality of oil outlet holes 303 are arranged inside the protective sleeve 202. By arranging the oil injection hole 302 on the adjusting rod 301, the staff can add lubricating oil by taking out the sealing plug 5. The lubricating oil flows into the protective sleeve 202 through the plurality of oil outlet holes 303, and then the sealing plug 5 is tightened again.

[0036] The adjusting rod 301 is threadedly connected with a sealing plug 5 for sealing the oil injection hole 302. The top of the sealing plug 5 is fixedly provided with a spherical block 6. The spherical block 6 facilitates the staff to twist and install or dismount the sealing plug 5.

[0037] The top of the protection sleeve 202 is fixed with a ring plate 7, which is sleeved outside the adjusting rod 301, and the ring plate 7 can play a role in preventing collision on the side of the adjusting rod 301.

[0038] The outer wall of each protection sleeve 202 is coated with wear-resistant paint, and the outer wall of the wear-resistant paint is coated with red paint. The wear-resistant paint can improve the wear resistance of the surface of the protection sleeve 202, and the red paint can play a warning role.

[0039] Although the utility model has been described in detail above with general description and specific embodiments, some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, these modifications or improvements made on the basis of not deviating from the spirit of the utility model belong to the scope of protection required by the utility model.

Claims

1. A ten-byte protection mechanism, characterized in that: It comprises a protection assembly (2) mounted on a cross-shaped body (1), wherein the cross-shaped body (1) is provided with four journals (101); The protection component (2) includes a plurality of mounting rings (201) fixed on the cross-shaped body (1), the plurality of mounting rings (201) corresponding to the four shaft necks (101) one by one, a protection sleeve (202) detachably connected to the interior of each mounting ring (201), a circular plate 1 (203) fixedly provided inside the protection sleeve (202), a circular plate 2 (204) provided on the top of the circular plate 1 (203), lubricating oil stored between the circular plate 2 (204) and the protection sleeve (202), a plurality of circular holes (205) provided on the top of the circular plate 1 (203) and the circular plate 2 (204), and an adjustment component (3) fixedly provided at the center of the top of the circular plate 2 (204); A sponge block (4) is fixedly provided at the bottom of the circular plate 1 (203), and the bottom of the sponge block (4) contacts the top of the shaft neck (101).

2. The cross-section protection mechanism according to claim 1, characterized in that: The adjusting assembly (3) comprises an adjusting rod (301) fixed at the top center of the second circular plate (204), the top end of the adjusting rod (301) passes through the top of the protective sleeve (202), and the adjusting rod (301) is rotatably connected to the protective sleeve (202), an oil filling hole (302) is provided at the top of the adjusting rod (301), and a plurality of oil outlet holes (303) in communication with the oil filling hole (302) are provided on the outer wall of the adjusting rod (301), and the plurality of oil outlet holes (303) are all provided inside the protective sleeve (202).

3. The cross-section protection mechanism according to claim 2, characterized in that: The top end of the regulating rod (301) is threadedly connected to a sealing plug (5) for sealing the oil filling hole (302), and a spherical block (6) is fixedly provided on the top of the sealing plug (5).

4. The cross-section protection mechanism according to claim 2, characterized in that: A ring plate (7) is fixedly provided on the top of the protective sleeve (202), and the ring plate (7) is sleeved on the outside of the adjustment rod (301).

5. The cross-section protection mechanism according to claim 1, characterized in that: The outer wall of the cross-shaped body (1) is provided with a plurality of annular slots (8), and a rubber sealing ring (9) for improving sealing performance is provided between each protective sleeve (202) and each annular slot (8).

6. The cross-section protection mechanism according to claim 1, characterized in that: A limiting block (10) is fixedly provided on the inner wall of each mounting ring (201), and a limiting groove (11) adapted to the limiting block (10) is provided on the outer wall of each protective sleeve (202), wherein the limiting block (10) is arranged in the limiting groove (11).

7. The cross-section protection mechanism according to claim 1, characterized in that: The outer wall of each protective sleeve (202) is coated with a wear-resistant coating, and the outer wall of the wear-resistant coating is coated with red paint.

8. The cross-section protection mechanism according to claim 1, characterized in that: The outer wall of the mounting ring (201) is provided with a plurality of receiving grooves (12), and the mounting ring (201) and the protective sleeve (202) are detachably connected together.

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