CN220487136U

CN220487136U - Double-oil-seal tamping rod

Info

Publication number: CN220487136U
Application number: CN202321940931.0U
Authority: CN
Inventors: 方雅君
Original assignee: Ningbo Oulai Construction Machinery Co ltd
Current assignee: Ningbo Oulai Construction Machinery Co ltd
Priority date: 2023-07-21
Filing date: 2023-07-21
Publication date: 2024-02-13
Anticipated expiration: 2033-07-21

Abstract

The utility model provides a double-oil-seal tamping rod, and belongs to the technical field of engineering equipment. The double-oil-seal tamping rod comprises a tube rod, a main shaft, a main bearing, a flexible shaft, a main oil seal, a connecting spring, a switching shaft and an auxiliary bearing; according to the utility model, the main shaft is arranged in the pipe rod through the main bearing, the main oil seals are arranged on two sides of the main bearing to form a double oil seal structure, meanwhile, the switching shaft is also arranged in the pipe rod through the auxiliary bearing, one end of the switching shaft extends out of the pipe rod and is connected with the flexible shaft, and the connecting spring is arranged between the main shaft and the switching shaft and is fixedly connected with the switching shaft, so that the main shaft and the switching shaft are flexibly connected, the flexibility of the integral structure is improved, the problem that vibration generated by high-speed rotation of the main shaft is transmitted back into the driver through the flexible shaft is avoided, the service performance of the driver is ensured, the structural damage risk caused by vibration back is reduced, and the service life of the driver is prolonged.

Description

Double-oil-seal tamping rod

Technical Field

The utility model relates to the technical field of engineering equipment, in particular to a double-oil-seal tamping rod.

Background

The concrete tamping rod is used as main equipment for closely combining concrete, bubbles in the concrete with fluidity can be discharged through vibration in the working process, the honeycomb defect of the solidified concrete is avoided, and the structural strength of the concrete after molding is improved.

At present, a tamping rod commonly used in the market is a novel concrete vibrator as disclosed in patent ZL200920020618.9, the vibrating rod is connected with a flexible hose shaft through a pipe joint, a self-aligning ball bearing and an oil seal are arranged in a rod tube of the vibrating rod, at the moment, the oil seal is arranged between the self-aligning bearing and a front vibrating knocking part and on the end face between the self-aligning bearing and a rear flexible hose shaft, so that a double oil seal structure is formed. Although the above-mentioned structure can satisfy the tamping demand, in the in-service use, because the main shaft need be at intraductal high-speed rotation of stick just can satisfy the vibration demand, and main shaft and flexible hose direct rigid connection, and main shaft, tubular wand isotructure are hard material, lead to the rotatory vibration that produces of main shaft can pass back to in the driver through flexible hose flexible axle, influence the performance of driver, the easy structural damage problem that appears leads to the life of driver to shorten.

Disclosure of Invention

The utility model provides a double oil blanket tamping rod to be provided with connecting spring in the tubular bar and be located between main shaft and the flexible axle, and connecting spring's both ends all are provided with the bearing, have realized the support to connecting spring through the bearing, improved connecting spring installation's stability, and, connecting spring has realized the flexonics between main shaft and the flexible axle, the structure pliability is better, the problem in the vibration that the main shaft produced because of high-speed rotation is directly passed back to the driver through the flexible axle has effectively been solved through connecting spring's elastic deformation, the performance of driver has been ensured, the risk of structural damage has been reduced, the life of driver has been prolonged.

The specific technical scheme is as follows:

the utility model provides a double oil seal tamping rod, including the tube stick, the main shaft, the main bearing, flexible axle and main oil blanket, the main shaft sets up in the tube stick, the one end overcoat of main shaft is equipped with the main bearing, and, just be located the both sides of main bearing in the tube stick all be provided with main oil blanket in order to form double oil blanket structure, the one end of flexible axle is connected with the one end that the main bearing was installed to the main shaft, have such characteristics, still include connecting spring, connecting spring sets up in the tube stick, and connecting spring sets up between flexible axle and main shaft, connecting spring's one end and main shaft fixed connection, and, be provided with the adapter shaft between connecting spring and the flexible axle, the middle part cover of adapter shaft is equipped with auxiliary bearing, auxiliary bearing's both sides all set up auxiliary oil blanket in order to form double oil blanket structure, the both ends of adapter shaft respectively with connecting spring and flexible axle fixed connection.

The double-oil-seal tamping rod is characterized in that a balancing weight is arranged at one end, deviating from the connecting flexible shaft, of the tube rod, the end of the tube rod is sealed, oil is filled in the tube rod, and the main shaft is soaked in the oil.

The double-oil-seal tamping rod comprises a main rod, a connecting sleeve and a bidirectional joint, wherein the main rod is of a hollow rod-shaped structure, one end of the main rod is in threaded connection with a balancing weight and seals the end part of the main rod, the other end of the main rod is in threaded connection with the connecting sleeve, a main oil seal and a main bearing are installed in the connecting sleeve, the other end of the connecting sleeve is in threaded connection with one end of the bidirectional joint, an auxiliary bearing and an auxiliary oil seal are arranged in the bidirectional joint, one end of the switching shaft extends out of the bidirectional joint, the other end of the bidirectional joint is in threaded connection with one end of a hose sleeved outside the flexible shaft, one end of the connecting spring is located in the connecting sleeve, and the other end of the connecting spring is located in the bidirectional joint.

The double-oil-seal tamping rod comprises two auxiliary bearings sleeved outside the adapter shaft.

The double-oil-seal tamping rod is characterized in that sealing rings are arranged between the main rod and the balancing weight, between the main rod and the connecting sleeve and between the connecting sleeve and the two-way joint.

The two-oil-seal tamping rod comprises a main shaft, a connecting spring, a connecting shaft, a connecting spring, a first threaded hole, a second threaded hole, two bolts, a first threaded hole and a second threaded hole, wherein the two ends of the connecting spring are welded with the bolts, the threaded parts of the two bolts are arranged in opposite directions, the end face of one end, connected with the connecting spring, of the main shaft is provided with the first threaded hole, the end face of one end, connected with the connecting spring, of the connecting shaft is provided with the second threaded hole, the two bolts at the two ends of the connecting spring are respectively in threaded connection with the first threaded hole and the second threaded hole, and the rotation directions of the first threaded hole and the second threaded hole are consistent with the rotation direction of the flexible shaft.

The double oil seal tamping rod, wherein, a first sleeve is sleeved outside one end of the main shaft connected with the connecting spring, one end of the first sleeve is propped against the inner ring of the main bearing, the other end of the first sleeve is propped against the corresponding bolt, and meanwhile, a main oil jacket is arranged outside the first sleeve.

The double-oil-seal tamping rod is characterized in that sealing rings are arranged between the first sleeve and the inner ring of the main bearing and between the first sleeve and the main shaft.

The double-oil-seal tamping rod is characterized in that a supporting bearing is sleeved outside one end, which is located in the tube rod and is away from the connecting flexible shaft, of the main shaft, and the supporting bearing is of a double-bearing structure.

The double-oil-seal tamping rod is characterized in that a cutting groove is formed in the middle section of the main shaft and located at one side of the main shaft.

The technical scheme has the positive effects that:

the double-oil-seal tamping rod comprises a main shaft, a flexible shaft, a connecting spring, a main bearing, a secondary bearing, a connecting spring, a flexible shaft and a connecting spring.

Drawings

FIG. 1 is a block diagram of an embodiment of a dual oil seal tamper bar of the present utility model;

fig. 2 is an enlarged view of a portion a in fig. 1.

In the accompanying drawings: 1. a tube rod; 11. a main bar; 12. connecting sleeves; 13. a two-way joint; 14. a seal ring; 15. balancing weight; 2. a main shaft; 21. a first threaded hole; 22. a support bearing; 23. grooving; 3. a main bearing; 4. a main oil seal; 5. a connecting spring; 51. a bolt; 6. a transfer shaft; 61. a second threaded hole; 7. a sub-bearing; 71. an auxiliary oil seal; 8. a first sleeve; 81. and (3) a sealing ring.

Detailed Description

In order to make the technical means, the creation features, the achievement of the purposes and the effects of the present utility model easy to understand, the following embodiments specifically describe the technical solution provided by the present utility model with reference to fig. 1 to 2, but the following disclosure is not limited to the present utility model.

FIG. 1 is a block diagram of an embodiment of a dual oil seal tamper bar of the present utility model; fig. 2 is an enlarged view of a portion a in fig. 1. As shown in fig. 1 and 2, the dual oil seal tamping rod provided in this embodiment includes: stick 1, main shaft 2, main bearing 3, flexible axle, main oil blanket 4, coupling spring 5 and lead first sleeve 8.

Specifically, the pipe rod 1 is of a hollow rod body structure, at this time, the main shaft 2 is installed in the pipe rod 1, the main bearing 3 is sleeved outside one end of the main shaft 2, the outer ring of the main bearing 3 is installed on the inner wall of the pipe rod 1, and the inner ring of the main bearing 3 is sleeved outside the main shaft 2, so that the main shaft 2 can rotate at a high speed in the pipe rod 1, and conditions are provided for realizing vibration of the pipe rod 1. In addition, all be provided with main oil blanket 4 in the stick of pipe 1 and be located the both sides of main bearing 3, form the double oil blanket structure in main bearing 3 department through main oil blanket 4 of main bearing 3 both sides, improved the sealed effect between main shaft 2 and the stick of pipe 1. In addition, one end of the flexible shaft is connected with one end of the main shaft 2 provided with the main bearing 3, the other end of the flexible shaft is connected with a driving shaft of the driver, a flexible pipe for protecting the flexible shaft is sleeved outside the flexible shaft, two ends of the flexible pipe are respectively connected with the tube rod 1 and the shell of the driver, namely the driver can drive the main shaft 2 to rotate at a high speed in the tube rod 1 through the flexible shaft, so that vibration is generated. In addition, still be provided with coupling spring 5 in stick of pipe 1 to set up coupling spring 5 between flexible axle and main shaft 2, simultaneously, with coupling spring 5's one end and main shaft 2 fixed connection, make coupling spring 5 can drive main shaft 2 rotation, also make coupling spring 5's one end support through the main bearing 3 of installing on main shaft 2 simultaneously, satisfy coupling spring 5's one end and stably install the demand in stick of pipe 1. And be provided with changeover axle 6 between connecting spring 5 and flexible axle, at this moment, the middle part cover of changeover axle 6 is equipped with auxiliary bearing 7, the outer loop of auxiliary bearing 7 is installed on the inner wall of stick 1, the inner ring cover of auxiliary bearing 7 is located outside changeover axle 6, the stable installation of changeover axle 6 in stick 1 has been realized, and all set up auxiliary oil blanket 71 in the both sides of auxiliary bearing 7, form the double oil blanket structure equally in the both sides of auxiliary bearing 7 through two auxiliary oil blanket 71, namely main bearing 3 and auxiliary bearing 7 department all are provided with the double oil blanket structure, and the double oil blanket structure of main bearing 3 and auxiliary bearing 7 department totally forms a double oil blanket structure again, further promoted the sealing performance between main shaft 2 and the stick 1. In addition, the two ends of the adapter shaft 6 are fixedly connected with the connecting spring 5 and the flexible shaft respectively, namely, the connecting spring 5 is connected with the flexible shaft through the adapter shaft 6, so that the flexible shaft can drive the connecting spring 5 to rotate through the adapter shaft 6, thereby driving the main shaft 2 to rotate, and the two ends of the connecting spring 5 are respectively supported by the main bearing 3 and the auxiliary bearing 7 through the auxiliary bearing 7 on the adapter shaft 6 as a supporting structure of the other end of the connecting spring 5, so that the stability and the reliability of the installation of the connecting spring 5 in the pipe rod 1 are ensured, in addition, the flexible connection between the main shaft 2 and the flexible shaft is realized through the connecting spring 5 as an adapter structure, the flexibility of the transmission structure is better, thereby effectively avoiding the problem that the vibration generated by the high-speed rotation of the main shaft 2 is transmitted back into the driver through the feedback, ensuring the service performance of the driver, simultaneously reducing the risk of the driver that the vibration is damaged, and prolonging the service life of the flexible shaft driver.

Specifically, the one end that tube bar 1 deviates from the flexible axle of connection is provided with balancing weight 15, and at this moment, balancing weight 15 can seal tube bar 1's tip for the interval of installation main shaft 2 in tube bar 1 is relatively confined space, can also increase tube bar 1 distal end's weight, and vibration inertia is bigger, and the vibration effect is better. Meanwhile, the pipe rod 1 is filled with oil, the main shaft 2 is soaked in the oil, namely, the oil is preferably engine oil, and the main shaft 2 is soaked in the oil through filling the oil in a relatively closed space formed in the pipe rod 1, so that heat generated by high-speed operation of the main shaft 2 can be quickly transferred to the pipe rod 1 through the engine oil to be dispersed, and meanwhile, the main shaft 2 can be used as an isolating film for operation of the main shaft 2, abrasion is reduced, and the service life of the tamping rod is further prolonged.

Specifically, the pipe rod 1 includes the main rod 11, the connecting sleeve 12, and the two-way joint 13 in addition to the weight 15, and at this time, the main rod 11 is configured as a hollow rod-like structure, so as to provide an installation space for the main shaft 2 and other structures. Meanwhile, one end of the main rod 11 is connected with a connecting sleeve 12 in a threaded manner, and the main oil seal 4 and the main bearing 3 are arranged in the connecting sleeve 12, so that the connecting sleeve 12 is used as an installation carrier of the main oil seal 4 and the main bearing 3, and meanwhile, the main shaft 2 can be conveniently installed in the main rod 11 through the dismounting of the connecting sleeve 12 on the main rod 11. In addition, the other end of the connecting sleeve 12 is in threaded connection with one end of the bidirectional joint 13, so that the installation of the main oil seal 4, the main bearing 3 and other structural parts in the connecting sleeve 12 is convenient under the condition that the bidirectional joint 13 is removed, and the auxiliary bearing 7 and the auxiliary oil seal 71 are arranged in the bidirectional joint 13, so that the bidirectional joint 13 serves as an installation carrier of the auxiliary bearing 7 and the auxiliary oil seal 71. In addition, one end of the adapter shaft 6 extends out of the bidirectional joint 13, so that the connection between the adapter shaft 6 and the flexible shaft is facilitated, at the moment, the other end of the bidirectional joint 13 is in threaded connection with one end of a flexible pipe sleeved outside the flexible shaft, and the connection between the whole pipe rod 1 and the flexible pipe of the flexible shaft is ensured. And, one end of the connecting spring 5 is positioned in the connecting sleeve 12, and the other end of the connecting spring 5 is positioned in the two-way joint 13, namely, the connecting spring 5 is convenient to install through the dismounting between the connecting sleeve 12 and the two-way joint 13, and the structural design is more reasonable.

More specifically, the auxiliary bearings 7 sleeved outside the transfer shaft 6 are two, namely, the transfer shaft 6 is supported by double bearings, so that the support effect is better, the support is more stable, the structural strength is higher, and the support requirement when the transfer shaft 6 is directly and rigidly connected with the flexible shaft is better met.

More specifically, a sealing ring 14 is arranged between the main rod 11 and the balancing weight 15, so that sealing between the main rod 11 and the balancing weight 15 can be realized after the balancing weight 15 is installed on the main rod 11, and likewise, the sealing ring 14 is also arranged between the main rod 11 and the connecting sleeve 12, so that sealing between the main rod 11 and the connecting sleeve 12 is also realized. In addition, a sealing ring 14 is also arranged between the connecting sleeve 12 and the two-way joint 13, and the sealing between the connecting sleeve 12 and the two-way joint 13 is also realized, so that the integral sealing performance of the pipe rod 1 is ensured, and the structural design is more reasonable.

More specifically, bolts 51 are welded at both ends of the connecting spring 5, and parts easy to connect are formed at both ends of the connecting spring 5 by the two bolts 51, so that connection with the main shaft 2 and the adapter shaft 6 is facilitated. At this time, the screw parts of the two bolts 51 are arranged in opposite directions, the end face of the end, connected with the connecting spring 5, of the main shaft 2 is provided with the first screw hole 21, the end face of the end, connected with the connecting spring 5, of the connecting shaft 6 is provided with the second screw hole 61, when the connecting spring 5 is installed between the main shaft 2 and the connecting shaft 6, the two bolts 51 at the two ends of the connecting spring 5 are respectively in threaded connection with the first screw hole 21 and the second screw hole 61, the threaded connection between the connecting spring 5 and the main shaft 2 and the connecting shaft 6 is realized, the connection is quick, the dismounting is convenient, and the assembly is easy. And, the rotation directions of the first threaded hole 21 and the second threaded hole 61 are consistent with the rotation direction of the flexible shaft, so that after the bolt 51 is connected with the main shaft 2 and the switching shaft 6 and when the flexible shaft rotates, the connection between the bolt 51 and the main shaft 2 and the connection between the bolt 51 and the switching shaft 6 can be tighter and tighter, the problem that the connecting spring 5 is separated from the main shaft 2 and the switching shaft 6 in the using process is avoided, and the safety and the security are higher.

More specifically, a first sleeve 8 is sleeved outside one end of the main shaft 2 connected with the connecting spring 5, one end of the first sleeve 8 is propped against the inner ring of the main bearing 3, so that the first sleeve 8 can rotate along with the main shaft 2, meanwhile, the other end of the first sleeve 8 is propped against the corresponding bolt 51, so that the first sleeve 8 can be stably installed on the main shaft 2 and rotate along with the main shaft 2, meanwhile, the main bearing 3 and the corresponding bolt 51 are separated by a preset distance through the first sleeve 8, meanwhile, a main oil seal 4 is sleeved outside the first sleeve 8, namely, an installation space is provided for the main oil seal 4 on one side of the main bearing 3 through the first sleeve 8, and the structural design is more reasonable.

More specifically, sealing rings 81 are further arranged between the first sleeve 8 and the inner ring of the main bearing 3 and between the first sleeve 8 and the main shaft 2, so that the sealing between the first sleeve 8 and the main bearing 3 and between the first sleeve and the main shaft 2 is realized, the effectiveness of the main oil seal 4 sleeved outside the first sleeve 8 is ensured, and the structural design is more reasonable.

More specifically, still overlap in the stick of pipe 1 and be located the main shaft 2 and deviate from the one end of connecting the flexible axle and be equipped with support bearing 22 outward for the both ends of main shaft 2 are provided with main bearing 3 and support bearing 22 respectively, thereby make the both ends of main shaft 2 all have bearing structure to support in stick of pipe 1, and the supporting effect is better, and the security is higher. In addition, the supporting bearing 22 also adopts a double-bearing structure, so that the supporting effect on the main shaft 2 is improved, the stability of the installation of the main shaft 2 is ensured, and the service life of the main shaft 2 is prolonged.

More specifically, a slot 23 is further formed in the middle section of the main shaft 2 and located at one side of the main shaft 2, and the weight of one side of the main shaft 2 is smaller than that of the other side through the slot 23, so that the main shaft 2 is of an eccentric structure, and the main shaft 2 can drive the pipe rod 1 to vibrate when the main shaft 2 rotates at a high speed, thereby satisfying the tamping requirement.

The double-oil-seal tamping rod comprises a tube rod 1, a main shaft 2, a main bearing 3, a flexible shaft, a main oil seal 4, a connecting spring 5, an adapter shaft 6 and an auxiliary bearing 7; through installing main shaft 2 through main bearing 3 in tubular wand 1 to be provided with main oil blanket 4 in main bearing 3's both sides in order to form double oil blanket structure, simultaneously, still install adapter shaft 6 through auxiliary bearing 7 in tubular wand 1, and, adapter shaft 6's one end stretches out outside tubular wand 1 and is connected with the flexible axle, connecting spring 5 sets up between main shaft 2 and adapter shaft 6 and fixed connection, be flexible connection between main shaft 2 and adapter shaft 6, the pliability of overall structure has been improved, thereby the vibration that has avoided main shaft 2 to produce because of high-speed rotation is passed back to the problem in the driver through the flexible axle, the performance of driver has been ensured, the structural damage risk because of vibration passback leads to has been reduced, the life of driver has been prolonged.

The foregoing is merely illustrative of the preferred embodiments of the present utility model and is not intended to limit the embodiments and scope of the present utility model, and it should be appreciated by those skilled in the art that equivalent substitutions and obvious variations may be made using the description and illustrations of the present utility model, and are intended to be included in the scope of the present utility model.

Claims

1. The utility model provides a double oil seal tamping rod, includes tube bar, main shaft, main bearing, flexible axle and main oil blanket, the main shaft set up in the tube bar, the one end overcoat of main shaft is equipped with the main bearing, and, just be located in the tube bar the both sides of main bearing all are provided with main oil blanket in order to form double oil seal structure, the one end of flexible axle with the main shaft is installed the one end of main bearing is connected, its characterized in that still includes coupling spring, coupling spring set up in the tube bar, just coupling spring set up in between the flexible axle with the main shaft, coupling spring's one end with main shaft fixed connection, and, coupling spring with be provided with the adapter shaft between the flexible axle, the middle part cover of adapter shaft is equipped with the auxiliary bearing, the both sides of auxiliary bearing all are provided with auxiliary oil blanket in order to form double oil seal structure, the both ends of adapter shaft respectively with coupling spring with flexible axle fixed connection.

2. The double oil seal tamping rod according to claim 1, wherein a balancing weight is arranged at one end of the rod tube, which is away from the flexible shaft, and seals the end of the rod tube, oil is filled in the rod tube, and the main shaft is immersed in the oil.

3. The double oil seal tamping rod according to claim 2, wherein the pipe rod comprises a main rod, a connecting sleeve and a bidirectional joint, the main rod is of a hollow rod-shaped structure, one end of the main rod is in threaded connection with the balancing weight and seals the end of the main rod, the other end of the main rod is in threaded connection with the connecting sleeve, the main oil seal and the main bearing are installed in the connecting sleeve, the other end of the connecting sleeve is in threaded connection with one end of the bidirectional joint, the auxiliary bearing and the auxiliary oil seal are arranged in the bidirectional joint, one end of the transfer shaft extends out of the bidirectional joint, the other end of the bidirectional joint is in threaded connection with one end of a hose sleeved outside the flexible shaft, one end of the connecting spring is located in the connecting sleeve, and the other end of the connecting spring is located in the bidirectional joint.

4. The dual oil seal tamper bar of claim 1 wherein there are two secondary bearings sleeved outside said adapter shaft.

5. A double oil seal tamper bar according to claim 3 wherein sealing rings are provided between the main bar and the counterweight, between the main bar and the connection sleeve, and between the connection sleeve and the bi-directional joint.

6. The double oil seal tamping rod according to claim 1, wherein bolts are welded at two ends of the connecting spring, threaded portions of the two bolts are arranged in opposite directions, a first threaded hole is formed in an end face of one end, connected with the connecting spring, of the main shaft, meanwhile, a second threaded hole is formed in an end face of one end, connected with the connecting spring, of the transfer shaft, the two bolts at two ends of the connecting spring are respectively in threaded connection with the first threaded hole and the second threaded hole, and rotation directions of the first threaded hole and the second threaded hole are consistent with rotation directions of the flexible shaft.

7. The dual oil seal tamper bar of claim 6, wherein a first sleeve is sleeved outside an end of the main shaft connected to the connecting spring, one end of the first sleeve abuts against an inner ring of the main bearing, the other end of the first sleeve abuts against the corresponding bolt, and simultaneously, a main oil jacket is arranged outside the first sleeve.

8. A double oil seal tamper bar according to claim 7, wherein sealing rings are provided between the first sleeve and the inner ring of the main bearing and between the first sleeve and the main shaft.

9. The double oil seal tamping rod according to claim 1, wherein a support bearing is sleeved outside one end of the main shaft, which is positioned in the tube rod and is away from the flexible shaft, and the support bearing is of a double-bearing structure.

10. The dual oil seal tamper bar of claim 1 wherein a slot is formed in a middle section of the spindle at one side thereof.