阅读说明：本技术 一种含冷却装置的捣固装置振动部件及相应冷却方法 (Tamping device vibration part with cooling device and corresponding cooling method ) 是由 张宝明 叶永钦 刘刚 杨晓梅 符朗 汪宏 王红兵 常士家 蔡文涛 张峥明 于 2019-09-23 设计创作，主要内容包括：本发明涉及一种含冷却装置的捣固装置振动部件,包括偏心振动轴(1)、振动轴承和振动轴承套,所述振动轴承内侧连接偏心振动轴(1),所述振动轴承外侧连接所述振动轴承套,所述振动轴承套外侧连接冷却装置。本发明通过采用含冷却装置的捣固装置振动部件并用于捣固装置,能够实现振动部件有效降温,能够实现捣固装置高频率作业,进一步提高捣固装置使用寿命,工程应用价值高。本发明还提供一种捣固装置振动部件冷却方法,通过在捣固装置振动轴部件的高温部位外周布置冷却装置,将冷却剂从冷却进口注入并流过冷却通道从冷却出口流出,从而带走高温部位热量,实现高温部位的冷却。(The invention relates to a vibrating component of a tamping device with a cooling device, which comprises an eccentric vibrating shaft (1), a vibrating bearing and a vibrating bearing sleeve, wherein the inner side of the vibrating bearing is connected with the eccentric vibrating shaft (1), the outer side of the vibrating bearing is connected with the vibrating bearing sleeve, and the outer side of the vibrating bearing sleeve is connected with the cooling device. According to the invention, the vibrating part of the tamping device with the cooling device is used for the tamping device, so that the vibrating part can be effectively cooled, the high-frequency operation of the tamping device can be realized, the service life of the tamping device is further prolonged, and the engineering application value is high. The invention also provides a cooling method for the vibrating part of the tamping device, which is characterized in that the cooling device is arranged on the periphery of the high-temperature part of the vibrating shaft part of the tamping device, and a coolant is injected from the cooling inlet and flows through the cooling channel and flows out from the cooling outlet, so that the heat of the high-temperature part is taken away, and the cooling of the high-temperature part is realized.)

1. The utility model provides a tamping unit vibrating part who contains cooling device, includes eccentric vibration axle (1), vibration bearing and vibration bearing housing, eccentric vibration axle (1) is connected to the vibration bearing inboard, the vibration bearing outside is connected the vibration bearing housing, its characterized in that, cooling device is connected in the vibration bearing housing outside.

2. The vibrating unit of a tamping apparatus with a cooling device as recited in claim 1, wherein said cooling device includes a cooling channel having a cooling inlet and a cooling outlet at opposite ends of said cooling channel.

3. Vibrating unit of a tamper-evident device with cooling, as in claim 1, characterized in that the eccentric vibrating shaft (1) comprises a concentric segment (11) and an eccentric segment (12), said vibrating bearing being connected inside the eccentric segment (12).

4. The tamper-imparting mechanism vibratory unit with cooling apparatus of claim 2, wherein the cooling passages are in the form of channels, the cooling inlet is fitted with an inlet fitting, and the cooling outlet is fitted with an outlet fitting.

5. The tamper-evident band assembly with cooling arrangement of claim 2, wherein said cooling channel completely covers said vibrating bearing shell.

6. The vibrating unit of a tamping unit with a cooling unit according to claim 3, wherein the concentric segment (11) is provided on the outside with a support bearing comprising a first support bearing (51) and a second support bearing (52).

7. The vibrating unit of a tamper with cooling unit of claim 6, wherein the vibrating bearing and the support bearing are rolling bearings, roller bearings, ball bearings, or a combination thereof, respectively, depending on the force applied to the tamper, or sliding bearings, as desired.

8. The vibrating unit of a tamping apparatus with a cooling unit as set forth in claim 1, wherein said vibration bearing includes a first vibration bearing (21), a second vibration bearing (22), and a third vibration bearing (23), and said vibration bearing housing includes a first vibration bearing housing (31), a second vibration bearing housing (32), and a third vibration bearing housing (33).

9. The vibrating unit of a tamping apparatus with a cooling device, as recited in claim 1, wherein said cooling device comprises a first cooling device (41), a second cooling device (42), and a third cooling device (43).

10. A method of cooling a vibrating element of a tamping unit, the method being carried out according to any of claims 1 to 9, characterized in that: the cooling device is arranged on the periphery of a high-temperature part of the vibrating shaft component of the tamping device, the cooling device at least comprises a cooling channel, a cooling inlet and a cooling outlet, a coolant is injected from the cooling inlet, and the coolant flows out from the cooling outlet through the cooling channel, so that the heat of the high-temperature part is taken away, and the cooling of the high-temperature part is realized.

Technical Field

The invention relates to the technical field of railway maintenance mechanical equipment, in particular to a vibrating part of a tamping device with a cooling device and a corresponding cooling method.

Background

The tamping operation is one of main works for maintaining the ballast railway track bed, the stability of the track bed can be effectively improved, and the running safety of a train is ensured. At present, in the railway maintenance machinery industry, the widely used tamping devices adopt a mechanical eccentric excitation mode and utilize the rotation of an eccentric shaft to generate vibration. The eccentric shaft part structure comprises a rolling bearing, the bearing is lubricated by grease, the working temperature of the bearing at an eccentric part is about 120 ℃ generally and is close to the use limit temperature of common lubricating grease, when the frequency of a tamping device needs to be improved, the temperature of the bearing is increased due to the increase of the rotating speed of the eccentric shaft, the temperature of the bearing exceeds the use temperature of the common lubricating grease, the service life of the bearing is influenced, and when the increasing range of the rotating speed is large, the temperature of the bearing even exceeds the allowable temperature of the bearing. Because the existing vibrating part of the tamping device has the technical defects that the working temperature is high and the normal work of the rolling bearing and the lubricating grease at a high rotating speed cannot be ensured, the improvement is needed urgently.

The patent number is ZL 201220390121.8's chinese utility model patent discloses a lubricated cooling body of vibration bearing, the bearing frame is installed on the wheel body of vibration wheel, and the oil wiper equipartition is on the circumferencial direction of wheel body, and the bearing frame circumferencial direction equipartition has oil guide groove and leads the oilhole, and the bearing frame has the oil storage tank in next-door neighbour vibration bearing mounting hole department, leads the oilhole and will lead oil groove and oil storage tank and be linked together. Because the utility model adopts the above structure, the oil wiper rolls along with the vibration wheel, and in the oil wiper scraped the lubricating oil in the vibration wheel into the oil groove of oil wiper, when the oil wiper circular motion arrived a take the altitude, lubricating oil flowed from the tip of cell type bent plate, and partial lubricating oil flowed into in the oil groove of leading of bearing frame to in leading oilhole, oil storage tank got into the vibration bearing, guaranteed to have sufficient lubricating oil to lubricate and cool off in the vibration bearing, extension vibration bearing's life. However, the utility model is only suitable for the lubrication and cooling of the vibration bearing in the vibration wheel of the vibration roller, and is not suitable for the cooling of the vibration part of the tamping device. Thus, improvements are still needed.

The Chinese invention patent with the patent number ZL201410496236.9 discloses a cooling water jacket of a bearing sleeve of a driving shaft of a vibrating ball mill, wherein circular bosses are arranged at two ends of the bearing sleeve, a circular water jacket is formed in the middle of the bearing sleeve, and two semi-water ferrules matched with the circular water jacket are welded with the inner sides of the circular bosses at two ends of the bearing sleeve; the two end head bearing plates and the supporting auxiliary plates which are fixedly connected are welded with the outer sides of the circular bosses at the two ends of the bearing sleeve; and the bearing gland matched with the inner rings of the circular bosses at the two ends of the bearing sleeve is used for jacking the bearing, and the bearing gland is connected with the end face of the circular boss of the bearing sleeve through a bolt. Compared with the prior structure: the processing quality and the service life of the cooling water jacket can be improved, the cooling water leakage is prevented, the welding difficulty is reduced, the maintenance workload is reduced, and the maintenance cost is saved. However, the invention is only suitable for cooling the bearing of the driving shaft of the vibrating ball mill and is not suitable for cooling the vibrating part of the tamping device. Thus, improvements are still needed.

Chinese patent No. ZL201711158797.8 discloses an engine bearing seat cooling structure, and belongs to the field of engines. The cooling scheme of the engine bearing seat provided by the invention has a good cooling effect on the bearing seat at the hot end part of the engine, and reduces the vibration of the bearing in the inner cavity of the bearing seat in the working process of the engine by reducing the thermal load of the bearing seat, thereby achieving the purposes of protecting the bearing, improving the working stability of the engine and prolonging the service life of the bearing. However, the invention is only suitable for cooling the bearing seat of the engine and is not suitable for cooling the vibrating part of the tamping device. Thus, improvements are still needed.

Chinese patent No. ZL201010137305.9 discloses a cooling and lubricating system for a vibration chamber bearing of a vibration hammer, wherein the cooling and lubricating system comprises a housing, a shaft, a. The vibration hammer comprises a vibration chamber, an oil storage cup, a lubricating oil channel, a vibration shaft, a bearing end cover, a lubricating oil pool and a bearing; the vibration chamber bearing cooling and lubricating system comprises 2 groups of two groups of forced lubricating devices which are respectively and fixedly arranged on the outer walls of the front side surface and the rear side surface of the vibration chamber and respectively comprise an oil pump arranged on one of the bearing end covers and a lubricating oil supply mechanism for conveying lubricating oil from a lubricating oil pool to the bearing end cover through the oil pump to carry out forced lubrication on the bearing; the lubricating oil supply mechanism comprises an oil suction pipe, an oil outlet pipe, an oil distribution block and a lubricating oil pipe; an oil temperature sensor is arranged on the forced lubricating device to monitor the temperature of the lubricating oil in real time; this vibration chamber bearing cooling and lubrication system is through adopting splashing and force-feed lubrication mode, guarantees that the vibration chamber bearing can both obtain reliable lubricated cooling under any circumstance, avoids the bearing to take place to sting the burning out trouble, effectively prolongs the life of bearing, ensures the vibration chamber reliable operation. However, the invention is only suitable for lubricating and cooling the vibration chamber bearing of the vibration hammer, and is not suitable for cooling the vibration part of the tamping device. Thus, improvements are still needed.

Disclosure of Invention

In order to solve the technical defects of the existing vibration bearing lubricating and cooling mechanism, the cooling water jacket of the bearing sleeve of the driving shaft of the vibration ball mill, the engine bearing seat cooling structure and the vibration chamber bearing cooling and lubricating system of the vibration hammer, the invention provides a vibrating component of a tamping device with a cooling device, which is used for the tamping device, and the vibrating component can reduce the working temperature of the bearing of the vibration shaft, realize the improvement of the vibration frequency of the tamping device and prolong the service life of the tamping device. The technical scheme adopted by the invention is as follows:

the utility model provides a tamping unit vibrating part who contains cooling device, includes eccentric vibration axle, vibration bearing and vibration bearing housing, the vibration bearing inboard is connected eccentric vibration axle, the vibration bearing outside is connected the vibration bearing housing, cooling device is connected in the vibration bearing housing outside.

Preferably, the cooling device comprises a cooling channel, and the two ends of the cooling channel are provided with a cooling inlet and a cooling outlet.

In any of the above schemes, preferably, the cooling channel is in the form of a channel, the cooling inlet is provided with an inlet joint, the cooling outlet is provided with an outlet joint, and the cooling channel covers the vibration bearing sleeve completely to increase the heat transfer area and enhance the cooling effect.

In any one of the above aspects, it is preferable that the eccentric vibration shaft includes a concentric section and an eccentric section, and an inner side of the vibration bearing is connected to the eccentric section of the eccentric vibration shaft.

In any of the above schemes, it is preferable that the support bearing is installed outside the concentric section, the vibration bearing is installed outside the eccentric section, because the eccentric vibration shaft rotates to make the eccentric section vibrate, the vibration bearing of the eccentric section receives alternating impact load, and the high temperature phenomenon is obvious, so it is preferable to install the cooling device on the vibration bearing at the eccentric section.

In any of the above schemes, preferably, the eccentric section is preferably arranged in at least two sections, and the eccentric vector values of the two sections of eccentric section are the same and the directions are opposite, so that the two eccentric forces are offset, and the supporting shaft of the concentric section of the eccentric vibration shaft is well supported.

In any of the above embodiments, the vibration bearing and the support bearing are preferably rolling bearings, or are preferably roller bearings, ball bearings or a combination thereof, respectively, according to the force applied by the tamping device, and sliding bearings may be selected as required.

In any of the above schemes, preferably, the vibration bearing sleeve is installed outside the vibration bearing, preferably, two sets of the vibration bearing sleeve are installed, one set of the vibration bearing sleeve adopts a single-layer structure, the other set of the vibration bearing sleeve adopts a double-layer structure, and the two sets of the vibration bearing sleeve are installed in a mutually nested manner.

In any of the above aspects, it is preferable that the spacer includes a spacer, a flywheel, a fastener, and the like.

In order to solve the technical defects of the existing vibration bearing lubricating and cooling method, the vibration ball mill driving shaft bearing sleeve cooling method, the engine bearing seat cooling method and the vibration chamber bearing cooling and lubricating method of the vibration hammer, the invention provides a tamping device vibration part cooling method, which has the following specific technical scheme:

a cooling device is arranged on the periphery of a high-temperature part of a vibrating shaft part of a tamping device, the cooling device at least comprises a cooling channel, a cooling inlet and a cooling outlet, a coolant is injected from the cooling inlet, and the coolant flows out from the cooling outlet through the cooling channel, so that the heat of the high-temperature part is taken away, and the cooling of the high-temperature part is realized.

Compared with the prior art, the invention has the beneficial effects that: through adopting the vibrating part of the tamping device containing the cooling device and being used for the tamping device, the vibrating part can be effectively cooled, the high-frequency operation of the tamping device can be realized, the service life of the tamping device is further prolonged, and the engineering application value is high.

Drawings

Fig. 1 is a schematic view of the structure of a preferred embodiment of a vibrating unit of a tamping apparatus including a cooling apparatus according to the present invention.

Fig. 2 is a schematic structural view of a preferred embodiment of the vibrating bearing sleeve and the cooling device in the vibrating part of the tamping unit with the cooling device according to the present invention.

Fig. 3 is a schematic view showing the internal structure of a preferred embodiment of the vibrating bearing sleeve and the cooling device in the vibrating part of the tamping apparatus including the cooling device according to the present invention.

Fig. 4 is a perspective view of a preferred embodiment of the cooling tunnel in the vibrating section of a tamping apparatus including a cooling apparatus according to the present invention.

Fig. 5 is a schematic structural view of another preferred embodiment of the vibrating part of the tamping apparatus including a cooling apparatus according to the present invention.

Description of reference numerals:

1 an eccentric vibration shaft; 11 a concentric segment; 12 an eccentric section; 21 vibrating the first bearing; 22 vibrating the bearing II; 23 vibrating the bearing III; 31 vibrating the bearing sleeve I; 32 vibrating the second bearing sleeve; 33 vibrating the bearing sleeve III; 41 a first cooling device; 42 a second cooling device; 421 a cooling channel; 422 a cooling inlet; 423 cooling outlet; 43 a third cooling device; 51 supporting the first bearing; 52 supporting a second bearing; 6, a space ring; 7 a flywheel; 8 fastener.

Detailed Description

The preferred technical scheme of the vibrating part of the tamping device with the cooling device and the cooling method is described in detail in the following with reference to the figures 1 to 5:

the first embodiment is as follows: as shown in figure 1, the vibrating component of the tamping device with the cooling device comprises an eccentric vibrating shaft 1, a vibrating bearing sleeve and the cooling device, wherein the eccentric vibrating shaft 1 is connected to the inner side of the vibrating bearing, the vibrating bearing sleeve is connected to the outer side of the vibrating bearing, and the cooling device is connected to the outer side of the vibrating bearing sleeve. Cooling device includes cooling channel, cooling channel both ends are opened there are cooling import and cooling outlet, cooling channel preferably adopts the channel form, the preferred installation access connection of cooling import, the preferred installation access connection of cooling outlet, cooling channel preferably covers comprehensively vibration bearing housing to increase heat transfer area, reinforcing cooling effect.

The eccentric vibration shaft 1 comprises a concentric section 11 and an eccentric section 12, wherein the eccentric section 12 of the embodiment shown in the figure is provided with three sections, wherein the eccentric vector value of one section is the same as that of the other two sections, and the directions are opposite, so that the eccentric forces are mutually offset, and the stress of the concentric section 11 of the eccentric vibration shaft is good.

And a supporting bearing is arranged outside the concentric section 11, and the supporting bearing comprises two supporting points as the shaft system comprises: a first support bearing 51 and a second support bearing 52. The vibration bearing is arranged on the outer side of the eccentric section 12, and a vibration bearing sleeve is arranged on the outer side of the vibration bearing. Because the eccentric vibration shaft 1 rotates to enable the eccentric section 12 to vibrate, the vibration bearing of the eccentric section 12 is subjected to alternating impact load, and the high-temperature phenomenon is obvious, so that the cooling device is arranged on the vibration bearing at the eccentric section 12. The cooling device is installed on the outer side of the vibration bearing sleeve. In the embodiment, three eccentric sections 12 are arranged, so the vibration bearing comprises a first vibration bearing 21, a second vibration bearing 22 and a third vibration bearing 23; the vibration bearing sleeve comprises a vibration bearing sleeve I31, a vibration bearing sleeve II 32 and a vibration bearing sleeve III 33; the cooling device comprises a first cooling device 41, a second cooling device 42 and a third cooling device 43.

In the embodiment, the vibration bearing and the support bearing are selected to be used by matching a four-point angular contact ball bearing and a cylindrical roller bearing, the four-point angular contact ball bearing bears axial force, and the cylindrical roller bearing bears radial force, so that the vibration component shown in the embodiment can bear the axial force and the radial force at the same time.

In the embodiment, the second vibration bearing sleeve 32 is nested between the first vibration bearing sleeve 31 and the third vibration bearing sleeve 33, so that the vibration exciting force vectors are collinear, and the structural stress of the tamping device is facilitated.

As shown in fig. 2 and 3, the structural form and installation manner of the cooling device will be described by taking the second oscillating bearing sleeve 32 and the second cooling device 42 as examples in this embodiment. The second cooling device 42 is installed outside the second bearing sleeve 32, and the second cooling device 42 comprises a cooling channel 421, a cooling inlet 422 and a cooling outlet 423. The cooling inlet 422 is fitted with an inlet fitting and the cooling outlet 423 is fitted with an outlet fitting. During operation, coolant enters from the cooling inlet 422, flows out from the cooling outlet 423 through the cooling channel 421, and takes away heat generated by rotation of the bearing in the flowing process to realize temperature reduction. The cooling channel 421 covers the second bearing sleeve 32 completely, so as to ensure the heat transfer area and enhance the cooling effect.

As shown in fig. 4, the cooling passage 421 is in the form of a channel, and the cooling passage 421 is in the form of a channel, which is formed to expand the range of the channel as much as possible, and has an inlet and an outlet at both ends.

The vibrating component of the tamping device with the cooling device shown in fig. 1 further comprises necessary structural components such as a spacer ring 6, a flywheel 7 and a fastener 8, the spacer ring 6 is used for separating all the components when the shafting is arranged, the safe distance of all the components is guaranteed, and the flywheel 7 is used for storing the rotational kinetic energy, so that the normal work of the tamping device is guaranteed.

Example two: as shown in fig. 5, the vibration bearing and the support bearing in the present embodiment employ only cylindrical roller bearings, and this embodiment is suitable for the case where the vibration shaft member is subjected to only radial forces. The rest of the structure is the same as the first embodiment.

Example three: the scheme of matching the four-point angular contact ball bearing and the cylindrical roller bearing in the first embodiment is replaced by a scheme of pairing the tapered roller bearing, and the first embodiment can also bear the axial force and the radial force at the same time. The rest of the structure is the same as the first embodiment.

A cooling method for a vibrating part of a tamping device is implemented by any one of the preferable schemes contained in the above embodiments, and the specific scheme is as follows: the cooling device is arranged on the periphery of a high-temperature part of the vibrating shaft component of the tamping device, the cooling device at least comprises a cooling channel, a cooling inlet and a cooling outlet, a coolant is injected from the cooling inlet, and the coolant flows out from the cooling outlet through the cooling channel, so that the heat of the high-temperature part is taken away, and the cooling of the high-temperature part is realized.

The above embodiments are merely preferred embodiments, wherein the components and the connection relations involved are not limited to the above described embodiments, and the arrangement and the connection relations of the components in the preferred embodiments may be arbitrarily arranged and combined to form a complete technical solution.