A convenient oil injection device for a rubber post-processing vibrating screen motor

Abstract

This invention relates to the field of motor lubrication devices, and more particularly to a convenient lubrication device for a vibrating screen motor used in rubber post-processing. It includes: a lubrication gun with a lubrication pipe fixedly connected and connected to it; a connecting pipe detachably connected to the lubrication pipe, the connecting pipe having a storage groove; an oil outlet pipe disposed within the connecting pipe and connected to it, the lubrication nozzle having an arc-shaped groove, and the oil outlet pipe having an inclined annular surface; several circumferentially evenly distributed limiting blocks, all slidably connected to the storage groove; and a shielding shell detachably connected to the connecting pipe. This invention, through the compression of the shielding shell by the limiting blocks, causes the shielding shell to enter the arc-shaped groove of the lubrication nozzle during deformation, improving the sealing between the connecting pipe and the lubrication nozzle, thereby reducing the probability of grease leakage during lubrication, reducing grease waste, and ensuring the cleanliness of the motor casing.

Description

Technical Field

[0001] This invention relates to the field of motor oiling devices, and in particular to a convenient oiling device for a vibrating screen motor used in rubber post-processing. Background Technology

[0002] In the rubber post-processing, the vibrating screen is one of the key pieces of equipment. Its matching motor, as the power source, directly affects the stable operation of the vibrating screen, and the lubrication level of the vibrating motor bearings directly affects its safe operation and service life. The vibrating motor is supported by bearings at both ends. During long-term continuous operation, it is necessary to periodically replenish the bearings with grease to reduce bearing friction, minimize wear, and effectively dissipate heat.

[0003] Currently, handheld grease guns are widely used for lubrication and grease application after a vibratory motor is shut down due to their significant advantages, including no need for an external power source, compact structure, simple operation, and portability. During operation, the claw-type connector of the grease gun head is aligned and engaged with the grease nipple on the motor bearing end cover. The grease is then manually pressed to force the grease into the bearing cavity under high pressure through the grease gun head and the grease nipple. However, because the grease gun head and the grease nipple use a claw-type movable connection structure, the gap between them is relatively large, making it difficult to form an effective seal. In actual use, during high-pressure grease application, the grease leaks out along the gap due to the inadequate seal, resulting in grease waste. Furthermore, the leaked grease adheres to the motor surface and easily attracts dust and impurities generated during rubber post-processing, affecting equipment cleanliness. Summary of the Invention

[0004] In order to overcome the shortcomings of existing handheld grease guns during use, this invention provides a convenient grease injection device for the motor of a rubber post-processing vibrating screen.

[0005] Technical solution: A convenient oil injection device for the motor of a rubber post-processing vibrating screen, comprising: An oil injection gun, on which an oil injection pipe is fixedly connected and connected; A connecting pipe is detachably connected to the oil injection pipe, and a storage groove is provided on the side of the connecting pipe away from the oil injection pipe; Also includes: An oil outlet pipe is provided inside the connecting pipe and is connected to the connecting pipe. It is used to inject grease into the grease injector. The grease injector is provided with an arc-shaped groove and a sealing ball is provided inside the grease injector. An inclined annular surface is provided on the side of the oil outlet pipe away from the grease injector. The limiting block has several circumferentially evenly distributed blocks, all of which are slidably connected to the storage slot. A shielding shell is detachably connected to the connecting pipe. The shielding shell is slidably and sealed to the oil outlet pipe. The shielding shell is made of an elastic and deformable material. The limiting block is used to compress the shielding shell. A trigger component is disposed on the connecting pipe, and the trigger component is used to change the position of all the limit blocks; The triggering component includes: A compression ring is slidably and sealed within the storage compartment, and the compression ring is in contact with all of the limiting blocks. The connecting rods are evenly distributed in several units, all of which are fixed to the side of the extrusion ring away from the limiting block, and the connecting rods are slidably connected to the connecting tube; A movable housing is rotatably connected to the connecting pipe. The inner side of the movable housing is provided with an internal thread, and the movable housing is threadedly connected to all the connecting rods through the internal thread.

[0006] Furthermore, it is particularly preferred that the extrusion ring has an inclined annular surface on the side away from the connecting rod, and the limiting block has an inclined surface on the side away from the central axis of the connecting tube, with the inclined annular surface on the extrusion ring contacting the inclined surface on the limiting block.

[0007] Furthermore, it is particularly preferred that the limiting block has an arc-shaped surface on the side near the central axis of the connecting pipe, the depth of the arc-shaped groove on the oil injector is less than the radius of the circle containing the arc-shaped surface cross-section on the limiting block, the shielding shell has an arc-shaped portion, the arc-shaped portion on the shielding shell is flush with the limiting block, and the radius of the circle containing the arc-shaped groove on the oil injector is equal to the sum of the radius of the circle containing the arc-shaped surface cross-section on the limiting block and the thickness of the arc-shaped portion on the shielding shell.

[0008] Furthermore, it is particularly preferred that it also includes: A connecting shell is slidably connected to the outside of the connecting pipe. Two connecting shafts are rotatably connected to the side of the connecting shell away from the oil injection pipe. A return torsion spring is fixedly connected between the connecting shaft and the connecting shell. Two elastic cords are respectively wound around the corresponding connecting shafts. The elastic cords pass through the connecting shell and are slidably connected to it. The end of the elastic cord away from the corresponding connecting shaft is fixed to the inner side of the connecting shell. The elastic cords are used to clean residual grease on the grease nipple.

[0009] Furthermore, it is particularly preferred that the portions of the two elastic cords located within the connecting shell are not at the same height and are in contact with each other.

[0010] Furthermore, it is particularly preferred that two elastic telescopic rods are fixedly connected inside the connecting shell, and a connecting ring is fixedly connected to the telescopic end of the elastic telescopic rod, and the elastic rope passes through the connecting ring on the telescopic end of the elastic telescopic rod away from the corresponding connecting shaft.

[0011] Furthermore, it is particularly preferred that it also includes: A movable tube is slidably and sealed to the connecting tube, the oil outlet tube is slidably and sealed to the movable tube, the movable tube is provided with an external thread, a pressure spring is fixedly connected between the movable tube and the oil outlet tube, and the connecting tube is slidably and sealed to the oil outlet tube. A rotating shell is rotatably connected to the connecting pipe, and the interior of the rotating shell is provided with an internal thread that is threaded to the external thread on the moving pipe.

[0012] Furthermore, it is particularly preferred that it also includes: A fixed shell is attached to the inside of the movable tube; A pressure rod is slidably connected to the fixed housing, and a limit spring is fixed between the pressure rod and the fixed housing. The pressure rod is used to squeeze the sealing ball inside the oil nozzle.

[0013] Furthermore, it is particularly preferred that the maximum distance the pressure rod can move along the fixed shell is greater than the maximum distance the oil outlet pipe can move along the moving pipe, and when neither the pressure rod nor the moving pipe moves, the minimum distance between the pressure rod and the elastic telescopic rod in the axial direction of the connecting pipe is less than the minimum distance between the oil outlet pipe and the elastic telescopic rod in the axial direction of the connecting pipe.

[0014] Compared with the prior art, the present invention has the following beneficial effects: the present invention uses the limiting block to squeeze the shielding shell, so that the shielding shell enters the arc groove of the oil injection nozzle during the deformation process, which improves the sealing between the connecting pipe and the oil injection nozzle, thereby reducing the probability of grease leakage during the oil injection process, reducing grease waste, and ensuring the cleanliness of the motor housing.

[0015] By setting an elastic rope on the connecting shell, during the downward movement of the connecting shell, the lower elastic rope continuously contacts the outer wall of the oil injector to scrape and clean the impurities adhering to the outside of the oil injector. This reduces the problem of increased fitting clearance or increased friction caused by impurities, and ensures that a stable and reliable sealing contact can be formed between the shielding shell and the oil injector. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the oil injection pipe and connecting pipe of the present invention; Figure 3This is a three-dimensional structural cross-sectional view of the connecting shell of the present invention; Figure 4 This is a three-dimensional structural cross-sectional view of the rotating shell of the present invention; Figure 5 This is a three-dimensional structural cross-sectional view of the connecting pipe of the present invention; Figure 6 This is a three-dimensional structural cross-sectional view of the extrusion ring of the present invention; Figure 7 This is a three-dimensional structural cross-sectional view of the shielding shell of the present invention; Figure 8 This is a three-dimensional structural diagram of the limiting block and connecting shaft of the present invention; Figure 9 This is a three-dimensional structural cross-sectional view of the fixing shell of the present invention; Figure 10 This is a three-dimensional structural diagram of the connecting shaft and elastic rope of the present invention; Figure 11 This is a three-dimensional structural diagram of the elastic rope and elastic telescopic rod of the present invention.

[0017] In the diagram: 100-oil nozzle, 1-oil gun, 2-oil pipe, 3-connecting pipe, 301-storage trough, 4-oil outlet pipe, 5-limiting block, 6-shielding shell, 7-compression ring, 8-connecting rod, 9-moving shell, 10-connecting shell, 11-connecting shaft, 12-reset torsion spring, 121-elastic rope, 122-elastic telescopic rod, 13-moving pipe, 14-pressure spring, 15-rotating shell, 16-pressure rod, 17-fixed shell, 18-limiting spring. Detailed Implementation

[0018] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0019] Example 1 This embodiment provides a convenient grease injection device for a vibrating screen motor used in rubber post-processing, which aims to optimize the problem of grease leakage along the gap between the grease gun head and the grease injection nozzle during the process of injecting grease into the motor using an existing handheld grease gun.

[0020] like Figures 1-9As shown, the oil injection device includes: an oil injection gun 1, with an oil injection pipe 2 fixedly connected and connected to the oil injection gun 1; a connecting pipe 3, detachably connected to the oil injection pipe 2, with a storage groove 301 provided on the side of the connecting pipe 3 away from the oil injection pipe 2; characterized in that it also includes: an oil outlet pipe 4, disposed inside the connecting pipe 3, communicating with the connecting pipe 3, used to inject grease into the oil injection nozzle 100, the oil injection nozzle 100 having an arc-shaped groove, a sealing ball disposed inside the oil injection nozzle 100, and an inclined annular surface disposed on the side of the oil outlet pipe 4 away from the oil injection pipe 2; a limiting block 5, having several evenly distributed around the circumference, all slidably connected to the storage groove 301; a shielding shell 6, detachably connected to the connecting pipe 3, the shielding shell 6 being slidably connected to the oil outlet pipe 4 in a sealed manner, the shielding shell 6 being made of an elastic deformable material, and the limiting blocks 5 being used to compress the shielding shell 6; and a triggering component, disposed on the connecting pipe 3, used to change the position of all the limiting blocks 5.

[0021] In the above scheme, the grease nozzle 100 is an existing device, and the sealing ball inside the grease nozzle 100 is used to seal its upper port. The outer diameter of the upper part of the grease nozzle 100 gradually decreases from bottom to top. The grease gun 1 and the grease pipe 2 are both existing devices. The grease gun 1 stores grease. The connecting pipe 3 is located on the side of the grease pipe 2 away from the grease gun 1. An elastic pad is provided on the inclined ring surface on the lower side of the oil outlet pipe 4 to improve the sealing between the oil outlet pipe 4 and the grease nozzle 100. In this embodiment, the oil outlet pipe 4 is fixedly connected to the connecting pipe 3. The specific number of limiting blocks 5 is selected by the operator and will not be described in detail in the figure and text. The shielding shell 6 is composed of an upper circular tube part, a lower circular ring part and a flexible part. The upper circular tube part of the shielding shell 6 is slidably connected to the outer side of the oil outlet pipe 4. The upper circular tube part and the lower circular ring part of the shielding shell 6 are detachably connected to the connecting pipe 3.

[0022] like Figures 5-8 As shown, the triggering assembly includes: a compression ring 7, which is slidably connected to the storage groove 301 and is in contact with all the limiting blocks 5; a connecting rod 8, which has several evenly distributed members, all fixed to the side of the compression ring 7 away from the limiting blocks 5, and is slidably connected to the connecting pipe 3; and a movable shell 9, which is rotatably connected to the connecting pipe 3. The inner side of the movable shell 9 is provided with an internal thread, and the movable shell 9 is threadedly connected to all the connecting rods 8 through its internal thread.

[0023] In the above scheme, when no oil is injected, the extrusion ring 7 is located above the limit block 5; the specific number of connecting rods 8 is selected by the staff. The figure shows four evenly distributed in the circumference as an example. The upper part of the connecting rod 8 passes through the connecting pipe 3, and the moving shell 9 is threadedly connected to the upper part of the connecting rod 8, which is used to drive the four connecting rods 8 to move up and down synchronously along the connecting pipe 3.

[0024] like Figure 7 and Figure 8As shown, the side of the extrusion ring 7 away from the connecting rod 8 is provided with an inclined annular surface, and the side of the limiting block 5 away from the central axis of the connecting pipe 3 is provided with an inclined surface. The inclined annular surface on the extrusion ring 7 contacts the inclined surface on the limiting block 5, ensuring that during the downward movement of the extrusion ring 7, the limiting block 5 can be squeezed towards the central axis of the connecting pipe 3, so that all the limiting blocks 5 are gathered together.

[0025] like Figures 2-9 As shown, the limiting block 5 has an arc-shaped surface on the side near the central axis of the connecting pipe 3. The depth of the arc-shaped groove on the oil nozzle 100 is less than the radius of the circle containing the arc-shaped surface cross-section on the limiting block 5. The shielding shell 6 has an arc-shaped part, which is located on its flexible part. The arc-shaped part on the shielding shell 6 is flush with the limiting block 5, ensuring that when the limiting block 5 moves towards the central axis of the shielding shell 6, it can smoothly squeeze the arc-shaped part of the shielding shell 6. The radius of the circle containing the arc-shaped groove cross-section on the oil nozzle 100 is equal to the sum of the radius of the circle containing the arc-shaped surface cross-section on the limiting block 5 and the thickness of the arc-shaped part on the shielding shell 6, ensuring that after oiling, the limiting block 5 can be moved by the squeezing of the arc-shaped groove on the oil nozzle 100.

[0026] The specific workflow of the above scheme is as follows: When it is necessary to use this grease injection device to inject grease into the motor, the operator shall move the connecting pipe 3 to a position aligned with the motor grease nipple 100. The following description assumes that the grease nipple 100 is located directly below the connecting pipe 3: After aligning the connecting pipe 3 with the oil filling nozzle 100, the operator moves the connecting pipe 3 downwards, allowing the oil filling nozzle 100 to enter the connecting pipe 3. During this process, the oil filling nozzle 100 presses against the arc-shaped portion on the shielding shell 6, causing the arc-shaped portion on the shielding shell 6 to deform under pressure, thereby increasing the resistance to the downward movement of the connecting pipe 3 (to remind the operator of the position of the connecting pipe 3 relative to the oil filling nozzle 100). When the arc-shaped portion on the shielding shell 6 aligns with the arc-shaped groove on the oil filling nozzle 100, the arc-shaped portion on the shielding shell 6 returns to its original position under its own elastic force and enters the arc-shaped groove of the oil filling nozzle 100. At the same time, the elastic pad on the inclined annular surface of the oil outlet pipe 4 fits tightly against the upper side of the oil filling nozzle 100. Then, the operator... The connector 3 remains in this position, and the movable housing 9 is rotated, causing the movable housing 9 to rotate relative to the connecting pipe 3. During the rotation of the movable housing 9, the four connecting rods 8 move downward synchronously. The four connecting rods 8 together drive the extrusion ring 7 to move downward. During the downward movement, the extrusion ring 7 extrudes the inclined surfaces on all the limiting blocks 5 through its inclined annular surface, causing all the limiting blocks 5 to move towards the central axis of the connecting pipe 3. This allows the limiting blocks 5 to enter the arc-shaped part of the shielding housing 6. The limiting blocks 5 extrude the arc-shaped part of the shielding housing 6, causing the arc-shaped part of the shielding housing 6 to fit tightly against the arc-shaped groove of the oil nozzle 100, thereby limiting the connecting pipe 3 and fixing the connecting pipe 3 to the oil nozzle 100.

[0027] As the extrusion ring 7 moves downward, it extrudes the air between the connecting pipe 3 and the shielding shell 6, causing the air to be compressed and move into the arc-shaped part of the shielding shell 6. This, in turn, extrudes the arc-shaped part on the shielding shell 6, improving the sealing between the arc-shaped part on the shielding shell 6 and the arc-shaped groove on the grease nipple 100, thereby reducing the probability of grease leakage during the grease injection process.

[0028] After the compression ring 7 moves downward to its limit position, thus completing the fixation of the connecting pipe 3 and the grease nipple 100, the operator stops rotating the moving shell 9. Then, grease is injected into the motor through the grease gun 1, grease pipe 2, and grease nipple 100 (during this process, the grease pushes open the sealing ball inside the grease nipple 100, allowing the grease to flow smoothly into the motor). After this, the operator rotates the moving shell 9 in the opposite direction, which drives the compression ring 7 to move upward. Then, the connecting pipe 3 is pulled upward. During the upward movement of the connecting pipe 3, the arc groove on the grease nipple 100 presses the arc part on the shielding shell 6, causing the arc part on the shielding shell 6 to deform and press all the limiting blocks 5, causing the limiting blocks 5 to move away from the central axis of the connecting pipe 3.

[0029] After the connecting pipe 3 is completely separated from the oil nozzle 100, the staff can remove the shield 6 and clean the inside of the shield 6 for subsequent use.

[0030] Example 2 Based on Example 1, this example further optimizes a convenient oil injection device for a vibrating screen motor in rubber post-processing.

[0031] like Figure 2 , Figure 3 , Figure 10 and Figure 11 As shown, it also includes: a connecting shell 10, which is slidably connected to the outside of the connecting pipe 3. Two connecting shafts 11 are rotatably connected to the side of the connecting shell 10 away from the oil injection pipe 2. A reset torsion spring 12 is fixedly connected between the connecting shaft 11 and the connecting shell 10; and two elastic ropes 121, which are respectively wound around the corresponding connecting shaft 11. The elastic ropes 121 pass through the connecting shell 10 and are slidably connected to it. The end of the elastic rope 121 away from the corresponding connecting shaft 11 is fixedly connected to the inside of the connecting shell 10. The elastic ropes 121 are used to clean the residual grease on the oil injection nozzle 100.

[0032] In the above scheme, the connecting shell 10 can only slide axially along the connecting pipe 3; the connecting shaft 11 is located on the outer side of the lower part of the connecting shell 10; under normal conditions, the part of the elastic rope 121 inside the connecting shell 10 is arc-shaped under its own elastic force, and the diameter of the circle formed by the projection of the two elastic ropes 121 onto the horizontal plane is greater than the minimum diameter of the upper part of the oil nozzle 100 and less than the maximum diameter of the upper part of the oil nozzle 100, and the diameter of the circle is less than the minimum diameter of the arc groove on the oil nozzle 100.

[0033] like Figure 10 As shown, the portions of the two elastic ropes 121 located inside the connecting shell 10 are not at the same height and are in contact with each other, so that the two elastic ropes 121 clean the impurities remaining on them through friction during the movement.

[0034] like Figure 10 and Figure 11 As shown, two elastic telescopic rods 122 are fixedly connected inside the connecting shell 10. A connecting ring is fixedly connected to the telescopic end of the elastic telescopic rod 122. The elastic rope 121 passes through the connecting ring on the telescopic end of the elastic telescopic rod 122 away from the corresponding connecting shaft 11.

[0035] In the above scheme, under normal conditions, the elastic telescopic rod 122 is in the extended state, and the elastic telescopic rod 122 is used to keep the elastic rope 121 in a horizontal state.

[0036] The workflow of the above solution is as follows: After aligning the connecting pipe 3 with the grease nipple 100, the operator moves the connecting pipe 3 downwards. The connecting pipe 3 causes the connecting housing 10 to move downwards simultaneously. When the lower elastic rope 121 moves downwards and contacts the grease nipple 100, it remains in contact with the outer wall of the grease nipple 100 throughout the downward movement of the connecting pipe 3. The lower elastic rope 121 scrapes and cleans any impurities adhering to the outside of the grease nipple 100 during its downward movement, ensuring a proper seal between the two. As the connecting housing 10 gradually moves downwards, grease is injected. The diameter of the contact point between the nozzle 100 and the elastic cord 121 gradually increases, causing the portion of the lower elastic cord 121 located inside the connecting shell 10 to be spread open by the nozzle 100. This causes the lower elastic cord 121 to be pulled out by the pressure of the nozzle 100, pulling out the portion wrapped around the corresponding connecting shaft 11 (driving the connecting shaft 11 to rotate), thus restoring the stored force of the torsion spring 12 (the working process of the upper elastic cord 121 can be referred to the above). At the same time, the telescopic end of the lower elastic telescopic rod 122 is compressed by the outer wall of the nozzle 100 and retracts into its fixed part to store force.

[0037] After the connecting shell 10 moves downwards and contacts the motor housing, it stops moving downwards. At this point, the connecting tube 3 continues to move downwards within the connecting shell 10 until it reaches the grease injection position. The operator then injects grease into the motor as described above. After grease injection, the operator separates the connecting tube 3 from the grease nipple 100 as described above. The connecting tube 3 moves upwards relative to the connecting shell 10. When the connecting tube 3 moves upwards relative to the connecting shell 10 to its initial position, it drives the connecting shell 10 upwards. During this process, the two elastic ropes 121 work together to prevent grease from remaining on the grease nipple 10. The grease on the outer wall is scraped off and cleaned. At the same time, as the two elastic ropes 121 move upward, the diameter of the contact position between the grease nipple 100 and the elastic rope 121 gradually decreases, thereby gradually reducing the squeezing force on the elastic rope 121. This causes the corresponding connecting shaft 11 to rotate in the opposite direction under the action of the corresponding reset torsion spring 12, and the pulled-out elastic rope 121 is rewound onto it. The telescopic ends of the two elastic telescopic rods 122 gradually extend and drive the connecting rings on them to move synchronously. Meanwhile, during the relative movement, the two elastic ropes 121 clean off the residual impurities on them through mutual friction, in preparation for subsequent use.

[0038] Example 3 Based on Example 2, this example further optimizes a convenient oil injection device for a vibrating screen motor in rubber post-processing.

[0039] like Figures 5-7 As shown, it also includes: a moving tube 13, which is sealed and slidably connected to the connecting tube 3; an oil outlet tube 4 is sealed and slidably connected to the moving tube 13; the moving tube 13 is provided with an external thread; a pressure spring 14 is fixedly connected between the moving tube 13 and the oil outlet tube 4; and the connecting tube 3 is sealed and slidably connected to the oil outlet tube 4; a rotating shell 15, which is rotatably connected to the connecting tube 3; and an internal thread that is threadedly connected to the external thread on the moving tube 13.

[0040] In the above scheme, the moving tube 13 is located above the oil outlet tube 4; the pressure spring 14 is always in a charged state to maintain the stability of the position of the oil outlet tube 4; the rotating shell 15 is located above the moving shell 9, and the rotating shell 15 drives the moving tube 13 to move up and down through its internal thread during rotation.

[0041] The specific workflow of the above scheme is as follows: During the process of aligning the oil nozzle 100 and the connecting pipe 3 and moving the connecting pipe 3 downwards, when the oil nozzle 100 contacts the oil outlet pipe 4, the limiting block 5 is not aligned with the arc groove on the oil nozzle 100 (at this time, the limiting block 5 is still located above the arc groove on the oil nozzle 100). As the connecting pipe 3 continues to move downwards, the oil nozzle 100 provides an upward force to the oil outlet pipe 4, causing the oil outlet pipe 4 to move upwards along the connecting pipe 3 and the moving pipe 13, and compressing the pressure spring 14 during the movement.

[0042] After the connecting pipe 3 is moved to the oil filling position, the operator fixes the connecting pipe 3 and the oil filling nozzle 100 according to the above operation. At the same time, the oil outlet pipe 4 stops moving. Then, the operator rotates the rotating shell 15, which drives the moving pipe 13 to move downward, compressing the pressure spring 14 again, increasing the squeezing force between the oil filling nozzle 100 and the oil outlet pipe 4, increasing the sealing performance of the two, ensuring that a reliable sealing effect can still be obtained even with processing errors, and improving the applicability of the oil outlet pipe 4.

[0043] After the oil filling is completed, the operator separates the connecting pipe 3 from the oil filling nozzle 100 according to the above operation. During this process, as the connecting pipe 3 gradually moves upward, the squeezing force of the oil filling nozzle 100 on the oil outlet pipe 4 gradually decreases, so that the oil outlet pipe 4 gradually moves downward relative to the connecting pipe 3 to the initial position under the action of the pressure spring 14. After separation, the operator rotates the rotating shell 15 in the opposite direction. The rotating shell 15 drives the moving pipe 13 to return to the initial position, so that the pressure spring 14 gradually returns to the initial state.

[0044] Example 4 Based on Example 3, this example further optimizes a convenient oil injection device for a vibrating screen motor in rubber post-processing.

[0045] like Figure 7 and Figure 9 As shown, it also includes: a fixed shell 17, which is fixed inside the moving tube 13; a pressure rod 16, which is slidably connected to the fixed shell 17; a limit spring 18 is fixed between the pressure rod 16 and the fixed shell 17; and the pressure rod 16 is used to squeeze the sealing ball inside the oil nozzle 100.

[0046] In the above scheme, the pressure rod 16 is composed of an upper disc part and a lower cylindrical part. The cylindrical part of the pressure rod 16 is slidably connected to the fixed shell 17, while the disc part of the pressure rod 16 is not sealed to the fixed shell 17. The limiting spring 18 is always in a stored state to maintain the stability of the position of the pressure rod 16.

[0047] like Figures 7-9 As shown, the maximum distance that the pressure rod 16 can move along the fixed shell 17 is greater than the maximum distance that the oil outlet pipe 4 can move along the moving pipe 13. When neither the pressure rod 16 nor the moving pipe 13 moves, the minimum distance between the pressure rod 16 and the elastic telescopic rod 122 in the axial direction of the connecting pipe 3 is less than the minimum distance between the oil outlet pipe 4 and the elastic telescopic rod 122 in the axial direction of the connecting pipe 3. This ensures that during the downward movement of the connecting pipe 3, the pressure rod 16 can first contact the sealing ball inside the oil filling nozzle 100, and at the same time guide the movement of the connecting pipe 3, ensuring the accuracy of the movement path of the connecting pipe 3.

[0048] The specific workflow of the above scheme is as follows: During the downward movement of the connecting pipe 3, the pressure rod 16 first contacts the sealing ball inside the grease nipple 100, and then squeezes the sealing ball inside the grease nipple 100 during the subsequent movement, causing the sealing ball inside the grease nipple 100 to be pressed down. When the sealing ball inside the grease nipple 100 moves down to the limit position (at this time, the grease nipple 100 opens, and the grease can enter the motor through the grease nipple 100), the sealing ball inside the grease nipple 100 reacts to the pressure rod 16, causing the pressure rod 16 to move up relative to the fixed shell 17 and compress the limit spring 18.

[0049] After the oil nozzle 100 is fixed to the connecting pipe 3, the operator rotates the rotating shell 15 as described above. The rotating shell 15 drives the moving pipe 13 to move down, and the moving pipe 13 drives the fixed shell 17 to move down synchronously, so that the limit spring 18 is compressed again, thereby increasing the squeezing force of the pressure rod 16 on the sealing ball inside the oil nozzle 100, increasing the stability of the sealing ball inside the oil nozzle 100, and ensuring the continuity of the oil nozzle 100 during the oil filling process.

[0050] After the oil filling is completed, the operator separates the oil filling nozzle 100 and the connecting pipe 3 according to the above operation. During the separation process, the pressure rod 16 gradually returns to the initial position relative to the fixed shell 17 under the action of the limit spring 18. After the oil filling nozzle 100 and the connecting pipe 3 are separated, the operator rotates the rotating shell 15 in the opposite direction. The rotating shell 15 drives the fixed shell 17 to return to the initial position through the moving pipe 13, in preparation for subsequent use.

[0051] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and its improved concept, should be covered within the scope of protection of this application.

Claims

1. A convenient oil injection device for the motor of a rubber post-processing vibrating screen, comprising: Oil gun (1), and an oil pipe (2) is fixedly connected and connected to the oil gun (1). A connecting pipe (3) is detachably connected to the oil injection pipe (2), and a storage trough (301) is provided on the side of the connecting pipe (3) away from the oil injection pipe (2). Its features include: An oil outlet pipe (4) is provided inside the connecting pipe (3). The oil outlet pipe (4) is connected to the connecting pipe (3) and is used to inject grease into the grease injector (100). The grease injector (100) is provided with an arc groove and a sealing ball is provided inside the grease injector (100). An inclined annular surface is provided on the side of the oil outlet pipe (4) away from the grease injector (2). The limiting block (5) has several circumferentially evenly distributed blocks, all of which are slidably connected to the storage groove (301); The shield (6) is detachably connected to the connecting pipe (3). The shield (6) is slidably connected to the oil outlet pipe (4). The shield (6) is made of an elastic deformable material. The limiting block (5) is used to squeeze the shield (6). A trigger component is disposed on the connecting pipe (3), and the trigger component is used to change the position of all the limiting blocks (5); The triggering component includes: The extrusion ring (7) is slidably connected to the storage groove (301), and the extrusion ring (7) is in contact with all the limiting blocks (5); The connecting rod (8) has several evenly distributed ones, all fixed to the side of the extrusion ring (7) away from the limiting block (5), and the connecting rod (8) is slidably connected to the connecting tube (3); The movable shell (9) is rotatably connected to the connecting pipe (3). The inner side of the movable shell (9) is provided with an internal thread. The movable shell (9) is threadedly connected to all the connecting rods (8) through the internal thread on it.

2. A convenient oiling device for a rubber post-processing vibrating screen motor according to claim 1, characterized in that, The extrusion ring (7) has an inclined ring surface on the side away from the connecting rod (8), and the limiting block (5) has an inclined surface on the side away from the central axis of the connecting pipe (3). The inclined ring surface on the extrusion ring (7) is in contact with the inclined surface on the limiting block (5).

3. A convenient oil injection device for the motor of a rubber post-processing vibrating screen according to claim 1, characterized in that, The limiting block (5) has an arc-shaped surface on the side near the central axis of the connecting pipe (3). The depth of the arc groove on the oil injector (100) is less than the radius of the circle containing the arc cross-section of the limiting block (5). The shielding shell (6) has an arc-shaped part. The arc-shaped part on the shielding shell (6) is flush with the limiting block (5). The radius of the circle containing the arc groove on the oil injector (100) is equal to the sum of the radius of the circle containing the arc cross-section of the limiting block (5) and the thickness of the arc-shaped part on the shielding shell (6).

4. A convenient oil injection device for the motor of a rubber post-processing vibrating screen according to claim 3, characterized in that it further includes... include: The connecting shell (10) is slidably connected to the outside of the connecting pipe (3). Two connecting shafts (11) are rotatably connected to the side of the connecting shell (10) away from the oil injection pipe (2). A reset torsion spring (12) is fixed between the connecting shaft (11) and the connecting shell (10). Two elastic cords (121) are respectively wound around the corresponding connecting shaft (11). The elastic cords (121) pass through the connecting shell (10) and are slidably connected thereto. The end of the elastic cord (121) away from the corresponding connecting shaft (11) is fixed to the inner side of the connecting shell (10). The elastic cords (121) are used to clean the residual grease on the oil nozzle (100).

5. A convenient oil injection device for the motor of a rubber post-processing vibrating screen according to claim 4, characterized in that, The portions of the two elastic ropes (121) located inside the connecting shell (10) are not at the same height and are in contact with each other.

6. A convenient oil injection device for the motor of a rubber post-processing vibrating screen according to claim 4, characterized in that, Two elastic telescopic rods (122) are fixedly connected inside the connecting shell (10). A connecting ring is fixedly connected to the telescopic end of the elastic telescopic rod (122). The elastic rope (121) passes through the connecting ring on the telescopic end of the elastic telescopic rod (122) away from the corresponding connecting shaft (11).

7. A convenient oil injection device for the motor of a rubber post-processing vibrating screen according to claim 4, characterized in that it further includes... include: The moving tube (13) is sealed and slidably connected to the connecting tube (3), the oil outlet tube (4) is sealed and slidably connected to the moving tube (13), the moving tube (13) is provided with an external thread, a pressure spring (14) is fixedly connected between the moving tube (13) and the oil outlet tube (4), and the connecting tube (3) is sealed and slidably connected to the oil outlet tube (4). Rotating shell (15) is rotatably connected to the connecting pipe (3). The interior of the rotating shell (15) is provided with an internal thread that is threaded to the external thread on the moving pipe (13).

8. A convenient oil injection device for the motor of a rubber post-processing vibrating screen according to claim 7, characterized in that it further... include: The fixed shell (17) is fixed inside the movable tube (13); The pressure rod (16) is slidably connected to the fixed shell (17), and a limit spring (18) is fixed between the pressure rod (16) and the fixed shell (17). The pressure rod (16) is used to squeeze the sealing ball inside the oil nozzle (100).

9. A convenient oil injection device for the motor of a rubber post-processing vibrating screen according to claim 8, characterized in that, The maximum distance that the pressure rod (16) can move along the fixed shell (17) is greater than the maximum distance that the oil outlet pipe (4) can move along the moving pipe (13). When neither the pressure rod (16) nor the moving pipe (13) moves, the minimum distance between the pressure rod (16) and the elastic telescopic rod (122) in the axial direction of the connecting pipe (3) is less than the minimum distance between the oil outlet pipe (4) and the elastic telescopic rod (122) in the axial direction of the connecting pipe (3).

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