Adjustable tie rod ball head

Abstract

The utility model relates to the technical field of ball heads, and discloses an adjustable tie rod ball head which comprises a ball socket piece, one side of the ball socket piece is fixedly connected with an external connection screw rod, a liquid injection valve port is fixedly communicated with the position, located on the opposite face of the external connection screw rod, of the ball socket piece, a first clamping piece is fixedly connected to the external connection screw rod, and a gas injection pipeline is clamped in the first clamping piece. Through the design of the whole device, whether abrasion occurs between the ball head with the rod and the ball socket piece or not can be detected, safe and stable operation of equipment is guaranteed for actual work, and sudden failures are prevented; by regularly detecting the abrasion condition of the ball head with the rod and the ball socket piece, the abrasion can be found in time when the abrasion is in a slight stage, for example, abnormal abrasion of the ball head in a suspension system can be perceived in advance in the automobile running process, and the situation that connection is loosened due to excessive abrasion of the ball head with the rod is avoided; therefore, serious safety accidents that steering is out of control suddenly and hanging parts fall off during vehicle driving are prevented, and life safety of a driver and passengers is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of ball head, concretely is adjustable pull rod ball head. BACKGROUND

[0002] Ball head is the key component in the steering system and the suspension system, also known as ball hinge; under the prior art condition, adjustable pull rod ball head faces the problem of wear detection in the actual operation process; at present, there is still lack of a reliable method which can accurately and effectively detect the wear degree without disassembling the ball head.

[0003] The absence of this detection means makes the ball head in the state of not being effectively monitored for a long time; with the passage of time, the ball head wear aggravates silently, but it is difficult to detect in time. For example, in the suspension system of the automobile, the pull rod ball head bears the heavy responsibility of transmitting the road action force and guaranteeing the flexible steering of the vehicle, since the wear cannot be detected before disassembly, when the ball head wears to a certain degree, it will cause abnormal shaking and deviation of the vehicle during driving, and even cause the failure of the suspension system, which endangers the driving safety; if the ball head wear is not found in time at the joint of the mechanical arm of the industrial automatic production line, it will cause the decline of the motion accuracy of the mechanical arm, the increase of the product machining error, and the influence on the product quality and production efficiency.

[0004] At the same time, in the lubrication link of the ball head and the socket, the prior art has obvious defects. The traditional lubrication method usually directly adds the lubricating grease without fully cleaning the impurities accumulated between the ball head and the socket, the impurities such as dust and metal chips are easy to invade due to the complex working environment of the ball head and the socket, after the impurities and the lubricating grease are mixed, not only the lubricating property of the lubricating grease is reduced, but also the wear of the surfaces of the ball head and the socket is aggravated during the relative motion of the ball head and the socket, like the grinding medium; taking the mining equipment as an example, its working environment is bad, a large amount of dust is easy to enter the gap between the ball head and the socket, if directly lubricated, the impurities will accelerate the wear of the ball head and the socket, greatly shorten the service life of the equipment, increase the equipment maintenance cost and downtime.

[0005] In summary, the prior art has serious deficiencies in the wear detection and lubrication impurity treatment of the adjustable pull rod ball head, and the technical scheme of innovation is urgently needed to solve these problems, so as to improve the performance, reliability and service life of the adjustable pull rod ball head.

[0006] Therefore, we propose an adjustable pull rod ball head to solve the above problems. CONTENT OF THE UTILITY MODEL

[0007] (I) technical problem solved

[0008] In view of the deficiencies of the prior art, the utility model provides an adjustable pull rod ball head to solve the problems proposed in the background art.

[0009] (II) Technical solutions

[0010] To achieve the above object, the utility model provides the following technical scheme: A adjustable pull rod ball head, including the ball and socket piece, the ball and socket piece one side fixedly connected with the outer connecting screw rod, the ball and socket piece on and located the opposite side fixed communication of liquid injection valve mouth of outer connecting screw rod.

[0011] As preferred, the outer connecting screw rod is fixedly connected with a first clamping piece, the first clamping piece is clamped with a gas injection pipeline, the outer end of the gas injection pipeline is inserted with a plugging plug, and the end of the gas injection pipeline away from the plugging plug is fixedly communicated on the ball and socket piece.

[0012] As preferred, the outer connecting screw rod is fixedly connected with a second clamping piece, the second clamping piece is clamped with a secondary pipeline, the outer end of the secondary pipeline is threadedly connected with a detection cavity, and the end of the secondary pipeline away from the detection cavity is fixedly communicated on the ball and socket piece.

[0013] As preferred, the spring is fixedly connected to the moving disc at the end away from the fixed wall in the detection cavity, and the moving disc is slidingly connected in the inner cavity of the detection cavity.

[0014] As preferred, the first electric contact piece is fixedly connected to the moving disc, the second electric contact piece is fixedly connected to the inner cavity wall of the detection cavity, and the prewarning lamp is fixedly connected to the outer end face of the detection cavity.

[0015] As preferred, the ball and socket piece is provided with a rod ball head, the rod ball head is sleeved with a sealing pad, the sealing pad is provided with a dustproof pad, and the rod ball head is threadedly connected with a fastening screw.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the utility model provides a adjustable pull rod ball head, which has the following beneficial effects:

[0018] 1. The utility model discloses a design of the whole device, which can detect whether the rod ball head and the ball and socket piece are worn or not, and brings the following beneficial effects to actual work:

[0019] Ensure the safe and stable operation of equipment, prevent sudden failure: By regularly detecting the wear of the rod ball head and the ball socket, it can be found in the early stage of wear, for example, during driving, it can detect the abnormal wear of the ball head in the suspension system in advance, avoid the connection loosening caused by excessive wear of the rod ball head, and prevent serious safety accidents such as sudden loss of control and suspension component falling off during driving, to ensure the safety of passengers; In cranes and other large engineering equipment, it can prevent the connection failure of the lifting arm caused by the wear of the rod ball head, prevent catastrophic consequences such as heavy object falling, and ensure the safe and orderly operation of engineering work;

[0020] Improve the stability of operation: Regularly track the wear state of the rod ball head and the ball socket to ensure that the equipment always operates in a normal state; For example, in precision machine tools, it can ensure the stability of the motion accuracy of the workbench, avoid the processing error fluctuation caused by the wear of the rod ball head, and ensure the consistency of product processing quality; In the field of aerospace, for the control system of the aircraft, it can ensure the linkage stability of each component during flight, and improve the flight safety and maneuverability.

[0021] 2、The utility model discloses a kind of methods for the wear detection of rod ball head and ball socket, and simultaneously re-adding lubricating liquid between them, and avoid direct injection of impurity-containing lubricating liquid as prior art, this operation mode has many significant benefits and beneficial effects:

[0022] Improve lubrication effect, reduce wear rate: Prior art directly adds lubricating liquid, dust impurities in it can intensify surface wear when rod ball head and ball socket move relatively, like abrasive grain, and new operation mode can effectively remove these impurities by treating lubrication area before adding, for example, in the hinged part of mine machinery, under a large amount of dust environment, original mode adds dust-containing lubricating liquid to make ball socket and rod ball head wear faster, new mode can avoid impurities participating in friction, significantly reduce wear rate, prolong the service life of component;

[0023] Optimize lubricating medium, enhance lubrication performance: re-adding pure lubricating liquid can ensure that lubricating liquid exerts best lubrication performance. High-quality lubricating liquid can form more stable and effective lubrication film on the surface of ball socket and rod ball head, reduce direct contact of metal surface, and reduce friction coefficient; For example, in automobile steering system, good lubrication can make steering operation more convenient and flexible, while reducing heat generated by friction, to further protect component;

[0024] Improve detection accuracy and equipment reliability, avoid impurity interference detection: the impurities existing in the lubricating liquid can affect the accuracy of the wear detection device. Refill the impurity-free lubricating liquid, which can ensure the stability of the detection environment and make the detection result more accurate to reflect the real wear state of the ball and socket and the ball head with rod; for example, in the fine adjustment mechanism of precision instruments, impurities can cause detection signal fluctuation and affect the judgment of wear degree, and the new operation mode can eliminate such interference and provide reliable basis for equipment maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is the appearance drawing of the utility model;

[0026] Figure 2 is the exploded view of the main structure of the utility model;

[0027] Figure 3 is the side view of the main structure of the utility model;

[0028] Figure 4 is the top view of the main structure of the utility model;

[0029] Figure 5 is the relevant structure diagram when the wear degree of the utility model is detected.

[0030] In the drawings:

[0031] 1, ball and socket; 2, outer connecting screw; 3, liquid injection valve port; 4, first clamping piece; 5, gas injection pipeline; 6, plugging plug; 7, second clamping piece; 8, auxiliary pipeline; 9, detection cavity; 10, spring; 11, moving disc; 12, first electric contact piece; 13, second electric contact piece; 14, early warning lamp; 15, ball head with rod; 16, gasket; 17, dustproof pad; 18, fastening screw. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be described clearly and completely in combination with the drawings of the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0033] The utility model will be further described in detail according to the drawings and embodiments.

[0034] EMBODIMENT

[0035] Please refer to Figures 1 to 5 as shown:

[0036] The application discloses a kind of adjustable pull rod ball head, including ball socket 1, one side fixed connection has outer connecting screw 2 of ball socket 1, ball socket 1 on and located the opposite side fixed communication of outer connecting screw 2 has injection valve port 3, outer connecting screw 2 is fixedly connected with first clamping part 4, first clamping part 4 is clamped with injection gas pipeline 5, injection gas pipeline 5 outer end is inserted with plugging plug 6, the end of injection gas pipeline 5 away from plugging plug 6 is fixedly communicated in ball socket 1, outer connecting screw 2 is fixedly connected with second clamping part 7, second clamping part 7 is clamped with sub pipeline 8, sub pipeline 8 outer end is threadedly connected with detection cavity 9, the end of sub pipeline 8 away from detection cavity 9 is fixedly communicated in ball socket 1, spring 10 is fixedly connected on the inner cavity wall of detection cavity 9, the end of spring 10 away from fixed wall is fixedly connected with moving disc 11, moving disc 11 is slidingly connected in the inner cavity of detection cavity 9, first electric contact piece 12 is fixedly connected on moving disc 11, second electric contact piece 13 is fixedly connected on the inner cavity wall of detection cavity 9, prewarning lamp 14 is fixedly connected on the outer end surface of detection cavity 9, ball socket 1 is connected with the ball head 15 with rod, the sealing pad 16 is sleeved on the ball head 15 with rod, dust pad 17 is arranged above sealing pad 16, fastening screw 18 is threadedly connected on ball head 15 with rod.

[0037] Wherein:

[0038] The outer injection needle tube can inject lubricating liquid into ball socket 1 through injection valve port 3.

[0039] The outer injection gas equipment can discharge the lubricating oil in the gap between ball socket 1 and ball head 15 with rod through sub pipeline 8 with the aid of injection gas pipeline 5; after discharge, new lubricating liquid can be injected into the gap between ball socket 1 and ball head 15 with rod through injection valve port 3.

[0040] Under normal conditions, the amount of lubricating solution carried in the gap between ball socket 1 and ball head 15 with rod is certain; if wear occurs between ball socket 1 and ball head 15 with rod, and if there are impurities in the lubricating solution, when all the lubricating solution in the gap between ball socket 1 and ball head 15 with rod and in injection gas pipeline 5 and sub pipeline 8 is removed by gas, and when new lubricating solution is injected into the gap between ball socket 1 and ball head 15 with rod and into injection gas pipeline 5 and sub pipeline 8, the amount of the new lubricating solution to be injected is higher than that under normal conditions.

[0041] When standard amount of lubricating solution is injected into the gap between ball socket 1 and ball head 15 with rod and into injection gas pipeline 5 and sub pipeline 8, first electric contact piece 12 and second electric contact piece 13 will just be in contact, and if wear occurs, first electric contact piece 12 and second electric contact piece 13 will not be in contact.

[0042] The first electric contact 12, the second electric contact 13 and the early warning lamp 14 have an electric connection relationship, when the first electric contact 12 and the second electric contact 13 do not contact, the early warning lamp 14 will not light.

[0043] The fastening screw 18 is screwed with the thread on the ball head 15, so as to ensure the installation stability of the sealing gasket 16 and the dustproof pad 17.

[0044] Working principle:

[0045] In the initial state, the gap between the ball socket 1 and the ball head 15, the gas injection pipeline 5, the auxiliary pipeline 8 and the inner cavity of the detection cavity 9 communicated with the gap, and the left side of the moving disc 11 are provided with lubricating liquid, the first electric contact 12 and the second electric contact 13 are in contact, and the early warning lamp 14 is always on.

[0046] In the detection, first, the blocking plug 6 on the gas injection pipeline 5 is opened, and then the detection cavity 9 is screwed down from the second clamping piece 7; then the lubricating liquid provided on the left side of the moving disc 11 in the gap between the ball socket 1 and the ball head 15, the gas injection pipeline 5, the auxiliary pipeline 8 and the inner cavity of the detection cavity 9 communicated with the gap is pumped away from the above position by an external gas pump, at this time, there is no longer lubricating oil in the whole device; the early warning lamp 14 no longer emits light;

[0047] Further, since it is known that the amount of lubricating solution carried by the gap between the ball socket 1 and the ball head 15 is certain in the normal state, if there is wear between the ball socket 1 and the ball head 15, and there are impurities in the lubricating liquid, when all the lubricating liquid in the gap between the ball socket 1 and the ball head 15 and the gas injection pipeline 5, the auxiliary pipeline 8 is transferred away by gas, and then the lubricating liquid is added to the gap between the ball socket 1 and the ball head 15 and the gas injection pipeline 5, the auxiliary pipeline 8, at this time, the amount of lubricating liquid added is higher than that in the normal state; and it is known that when the standard amount of lubricating liquid is injected into the gap between the ball socket 1 and the ball head 15 and the gas injection pipeline 5, the auxiliary pipeline 8, the first electric contact 12 and the second electric contact 13 will just contact, if wear occurs, the contact will not occur; therefore, after the lubricating liquid in the whole component is pumped out of the device, and each component is restored to its original position, the standard amount of lubricating liquid is pumped into the gap between the ball socket 1 and the ball head 15, the gas injection pipeline 5, the auxiliary pipeline 8 and the inner cavity of the detection cavity 9 communicated with the gap, and the left side of the moving disc 11, if the moving disc 11 in the detection cavity 9 is pushed to make the spring 10 compressed, the first electric contact 12 and the second electric contact 13 are in contact, and the early warning lamp 14 is on, it indicates that the whole component has not been worn, otherwise, wear has occurred.

[0048] Further, through the design of the overall device, it can be detected whether wear occurs between the rod ball head 15 and the ball socket 1, which brings the following beneficial effects to the actual work:

[0049] Ensure the safe and stable operation of the equipment and prevent sudden failures: By regularly detecting the wear of the rod ball head 15 and the ball socket 1, it can be discovered in time when the wear is in the early stage. For example, during driving, the abnormal wear of the ball head in the suspension system can be detected in advance, avoiding the loosening of the connection due to excessive wear of the rod ball head 15, and preventing serious safety accidents such as loss of control during driving and falling of suspension parts, thereby ensuring the safety of the passengers. In large engineering equipment such as cranes, it can prevent the connection failure of the lifting arm caused by the wear of the rod ball head 15, prevent catastrophic consequences such as falling of heavy objects, and ensure the safe and orderly operation of engineering work.

[0050] Improve the stability of operation: Regularly track the wear state of the rod ball head 15 and the ball socket 1 to ensure that the equipment always operates in a normal state. For example, in precision machine tools, it can ensure the stability of the movement precision of the workbench and avoid the fluctuation of processing errors caused by the wear of the rod ball head 15, thereby ensuring the consistency of product processing quality. In the field of aerospace, for the control system of the aircraft, it can ensure the linkage stability of the components during flight and improve the flight safety and controllability.

[0051] Further, when detecting the wear of the rod ball head 15 and the ball socket 1, the gap lubricating liquid therebetween is simultaneously refilled, and the existing technology is avoided to directly refill the lubricating liquid containing impurities. This operation method has many significant benefits and advantages:

[0052] Improve the lubrication effect and reduce the wear rate: The existing technology directly refills the lubricating liquid, and the dust and impurities therein will intensify the surface wear when the rod ball head 15 and the ball socket 1 move relative to each other, like abrasive particles. The new operation method can effectively remove these impurities by treating the lubricating area before refilling. For example, in the hinged part of mining machinery, the original method of refilling the dust-containing lubricating liquid will accelerate the wear of the ball socket 1 and the rod ball head 15 in a large amount of dust environment. The new method can avoid the participation of impurities in friction, significantly reduce the wear rate, and prolong the service life of the components.

[0053] Optimize the lubricating medium and enhance the lubricating performance: Refilling the pure lubricating liquid can ensure that the lubricating liquid can exert the best lubricating performance. High-quality lubricating liquid can form a more stable and effective lubricating film on the surface of the ball socket 1 and the rod ball head 15, reducing the direct contact of the metal surface and reducing the friction coefficient. For example, in the automobile steering system, good lubrication can make the steering operation more convenient and flexible, while reducing the heat generated by friction, thereby further protecting the components.

[0054] Improve detection accuracy and equipment reliability, avoid impurity interference detection: the impurities in the lubricating liquid can affect the accuracy of the wear detection device. Refill the impurity-free lubricating liquid, which can ensure the stability of the detection environment and make the detection results more accurate to reflect the real wear state of the ball socket 1 and the rod ball head 15; For example, in the fine adjustment mechanism of precision instruments, impurities can cause detection signal fluctuation, affecting the judgment of wear degree, and the new operation mode can eliminate such interference and provide reliable basis for equipment maintenance.

[0055] The above working process please refer to Figures 1 to 5 .

[0056] It should be noted that in this paper, such as the first and second relationship terms are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the term "includes", "contains" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "includes a" does not exclude the presence of other identical elements in the process, method, article or equipment including the element.

[0057] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the 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. An adjustable drawbar ball, comprising a ball and socket member (1), characterised in that: The ball socket piece (1) is fixedly connected with an outer connecting screw rod (2) on one side, and an injection liquid valve port (3) is fixedly communicated on the ball socket piece (1) and located on the opposite side of the outer connecting screw rod (2).

2. An adjustable drawbar ball according to claim 1 wherein: The outer connecting screw rod (2) is fixedly connected with a first clamping piece (4), the first clamping piece (4) is clamped with an injection gas pipeline (5), the injection gas pipeline (5) is inserted with a blocking plug (6) at the outer end, and the injection gas pipeline (5) is fixedly communicated on the ball socket piece (1) away from the blocking plug (6).

3. An adjustable drawbar ball according to claim 1 wherein: The outer connecting screw rod (2) is fixedly connected with a second clamping piece (7), the second clamping piece (7) is clamped with a secondary pipeline (8), the secondary pipeline (8) is threadedly connected with a detection cavity (9) at the outer end, and the secondary pipeline (8) is fixedly communicated on the ball socket piece (1) away from the detection cavity (9).

4. An adjustable drawbar ball according to claim 3 wherein: The spring (10) is fixedly connected to the inner cavity wall of the detection cavity (9), one end of the spring (10) away from the fixed wall is fixedly connected with a moving disc (11), and the moving disc (11) is slidingly connected in the inner cavity of the detection cavity (9).

5. An adjustable draw bead ball stud according to claim 4, wherein: The first electric contact piece (12) is fixedly connected to the moving disc (11), the second electric contact piece (13) is fixedly connected to the inner cavity wall of the detection cavity (9), and the pre-warning lamp (14) is fixedly connected to the outer end face of the detection cavity (9).

6. An adjustable drawbar ball according to claim 1 wherein: The ball socket piece (1) is connected with a rod ball head (15), the rod ball head (15) is sleeved with a sealing gasket (16), the sealing gasket (16) is provided with a dustproof pad (17) above, and the rod ball head (15) is threadedly connected with a fastening screw (18).

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