CN218141431U - Tread cleaner is with clearance adjustment device - Google Patents
Tread cleaner is with clearance adjustment device Download PDFInfo
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- CN218141431U CN218141431U CN202222197503.5U CN202222197503U CN218141431U CN 218141431 U CN218141431 U CN 218141431U CN 202222197503 U CN202222197503 U CN 202222197503U CN 218141431 U CN218141431 U CN 218141431U
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- nut
- tread
- ratchet
- tread sweeper
- adjusting device
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Abstract
The utility model relates to a gap adjusting device for a tread sweeper, which comprises a tread sweeper body, a locking bolt arranged on the tread sweeper body, a ratchet nut and a lead screw sleeve; the ratchet wheel and the nut adopt a split structure, and the ratchet wheel and the nut adopt a friction pair, so that the abrasion of parts of the gap adjusting device when the tread sweeper bears reverse impact can be effectively reduced, and the service life of the gap adjusting device is prolonged; the utility model adopts the design of reverse impact prevention, namely, the friction pair of the ratchet nut and the locking bolt act together, so that the reverse impact action from wheel set tread and wheel set vibration can be effectively dealt with; the utility model discloses a locking bolt, ratchet nut and lead screw sleeve realize the less single adjustment volume of tread sweeper adjusting device.
Description
Technical Field
The utility model relates to a tread sweeper technical field especially relates to a tread sweeper is with clearance adjustment device.
Background
The tread sweeper is a device which is arranged on a bogie of a railway vehicle and is used for removing foreign matters on the tread of a wheel and improving the adhesion characteristic of the wheel and the rail, and can effectively prevent the friction foreign matters on the tread of the wheel set from being damaged when the railway vehicle runs at a high speed;
when the vehicle runs for a long time, the grinding wheel of the tread sweeper is gradually worn, the tread sweeper needs to extend for a longer distance to compensate the wear of the grinding wheel so as to maintain a fixed gap between the grinding wheel and the wheel set tread, and the gap adjusting device is a part of the tread sweeper for realizing the function; when the grinding wheel presses the wheel pair tread, a certain reverse impact action is exerted on the tread sweeper, the abrasion of the tread sweeper gap adjusting device can be accelerated by the reverse impact action, and when the reverse impact action is large, the grinding wheel is adversely affected, so that the grinding wheel is eccentrically ground; the larger the single adjustment of the tread sweeper clearance adjusting device is, the larger the impact action is; meanwhile, when the railway vehicle runs, the wheel pair vibrates and has reverse impact effect on the tread sweeper, and when the vibration amplitude is large, parts of the tread sweeper can be damaged; the common tread sweeper clearance adjusting device of the prior railway vehicle adopts a rack type structure, has large single adjustment amount and stronger reverse impact effect, has no effective means to reduce the impact when dealing with the vibration reverse impact of a wheel pair, and has easily damaged and consumable parts.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a tread is clearance adjustment device for sweeper to prior art's not enough, it is big to solve the adjustment volume once among the current device, and reverse impact acts on stronger problem.
The utility model discloses an adopt following technical scheme to realize:
a gap adjusting device for a tread sweeper comprises a tread sweeper body, a locking bolt arranged on the tread sweeper body, a ratchet wheel nut and a lead screw sleeve;
the ratchet wheel nut is of a split structure and comprises a ratchet wheel with a plurality of ratchet grooves and a nut with T-shaped internal threads, and the ratchet wheel is sleeved on the outer side of the nut;
the nut is rotatably sleeved outside the screw rod sleeve, and the bottom end of the locking bolt abuts against a ratchet groove of the ratchet wheel to form ratchet wheel matching.
Preferably, the inner ring of the ratchet wheel and the outer ring of the nut are specially-made friction surfaces with certain friction coefficients.
Preferably, the tread sweeper body comprises a cylinder body, a piston sleeve, a spring pull rod, a return spring and a grinding unit;
the grinding device is characterized in that a piston is linearly and slidably connected in the cylinder body, a spring pull rod is arranged in the cylinder body, a return spring is sleeved on the outer side of the spring pull rod, a piston sleeve is sleeved on the outer side of the return spring, a lead screw sleeve is sleeved on the outer side of the piston sleeve, and one end of the piston sleeve is connected with a grinder.
Preferably, two bearings are arranged at the inner side end of the cylinder body, and the two bearings are arranged at the two ends of the nut.
Preferably, a locking spring is arranged in the cylinder body and sleeved on the locking bolt.
Preferably, the nut is connected with the screw rod sleeve in a matched mode through a non-self-locking screw rod. Compared with the prior art, the utility model discloses following profitable technological effect has:
the ratchet wheel and the nut adopt a split structure, and the ratchet wheel and the nut adopt a friction pair, so that the abrasion of parts of the gap adjusting device when the tread sweeper bears reverse impact can be effectively reduced, and the service life of the gap adjusting device is prolonged;
the utility model adopts the design of reverse impact prevention, namely, the friction pair of the ratchet nut and the locking bolt act together, so that the reverse impact action from wheel set tread and wheel set vibration can be effectively dealt with;
the utility model discloses a locking bolt, ratchet nut and lead screw sleeve realize the less single adjustment volume of tread sweeper adjusting device.
Drawings
The utility model is further described with the following drawings:
fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a sectional view of the whole structure of the present invention;
fig. 3 is a schematic structural view of the ratchet nut of the present invention.
Description of the reference numerals
1-locking bolt, 2-locking spring on the cylinder of tread sweeper, 3-locking spring, 4-ratchet wheel, 5-lead screw, 6-bearing, 7-lead screw, 8-piston sleeve, 9-spring pull rod, 10-reset spring.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict. In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
as shown in fig. 1-3: a gap adjusting device for a tread sweeper comprises a locking bolt 1, a locking spring 3, a ratchet nut, a bearing 6, a screw rod sleeve 7, a piston sleeve 8, a spring pull rod 9 and a return spring 10;
in the embodiment, as shown in fig. 3, the ratchet nut is a split structure and is divided into a ratchet 4 and a nut 5, the outer ring of the ratchet 4 is provided with a fixed number of ratchet grooves, the inner ring of the nut 5 is provided with T-shaped threads, the inner ring of the ratchet 4 and the outer ring of the nut 5 are special friction surfaces and have certain friction coefficients to form a friction pair, as shown in fig. 2, two ends of the nut 5 are provided with bearings 6, two end surfaces of each bearing 6 abut against a cylinder body, and the nut 9 is rotatably connected through the bearings 6;
in the embodiment, the nut 5 is connected with the lead screw sleeve 7 in a non-self-locking lead screw matching manner, that is, the nut 5 can rotate when the lead screw sleeve 7 generates linear motion;
in this embodiment, be provided with locking spring 3 in the cylinder body, install on tread sweeper cylinder body by the bracelet nut, locking spring 3 cup joints on locking bolt 1
In this embodiment, the tread sweeper body comprises a cylinder (not shown), a piston (not shown) is linearly and slidably connected in the cylinder, a spring pull rod 9 is arranged in the cylinder, a return spring 10 is sleeved on the outer side of the spring pull rod 9, a piston sleeve 8 is sleeved on the outer side of the return spring 10, a screw rod sleeve 7 is sleeved on the outer side of the piston sleeve 8, the piston is fixedly connected with the piston sleeve 8, and the other end of the piston sleeve 8 is connected with a grinder (not shown) through a pin shaft;
in the embodiment, a friction pair of the ratchet nut and the locking bolt 1 act together, when the lead screw sleeve 7 is subjected to large reverse impact from the piston sleeve 8, the nut 5 overcomes the action of friction of the friction pair with the ratchet 4 to rotate, so that the lead screw sleeve 7 moves reversely, and the grinding roller is withdrawn; when the screw rod sleeve 7 is subjected to overlarge reverse impact from the piston sleeve 8, the nut 5 and the ratchet wheel 4 friction pair cannot overcome friction force due to overlarge reverse impact to rotate relatively, the ratchet wheel 4 overcomes the action of the locking spring 3 on the locking bolt 1 to jack up the locking bolt 1 and rotate with the nut 5 simultaneously, so that the screw rod sleeve 7 moves reversely and the grinding block is withdrawn;
the working principle is as follows: when the clearance adjusting device acts, the screw rod sleeve 7 starts to advance under the pushing of the piston, the ratchet wheel 4 is separated from the nut 5, the nut 5 rotates under the restraint and the support of the bearing 6, and the screw rod sleeve 7 advances to realize the abrasion compensation amount of the grinding unit;
when the abrasion compensation amount of the grinding roller is released, the piston sleeve 8 pushes the screw rod sleeve 7 to start reverse movement under the action of the return spring 10, the nut 5 and the ratchet wheel 4 are abutted together, the ratchet wheel 4 and the nut 5 are abutted together and cannot rotate due to the effect of a friction pair and the locking effect of the locking bolt 1, the screw rod sleeve 7 cannot return to the original position, and the abrasion compensation amount of the grinding roller is kept.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (6)
1. A gap adjusting device for a tread sweeper is characterized by comprising a tread sweeper body, a locking bolt (1) arranged on the tread sweeper body, a ratchet nut and a screw rod sleeve (7);
the ratchet wheel nut is of a split structure and comprises a ratchet wheel (4) with a plurality of ratchet tooth grooves and a nut (5) with T-shaped internal threads, wherein the ratchet wheel (4) is sleeved on the outer side of the nut (5);
the nut (5) is rotatably sleeved on the outer side of the screw rod sleeve (7), and the bottom end of the locking bolt (1) abuts against a ratchet groove of the ratchet wheel (4) to form ratchet wheel matching.
2. The gap-adjusting device for a tread sweeper according to claim 1, wherein the inner ring of the ratchet wheel (4) and the outer ring of the nut (5) are specially made friction surfaces with a certain coefficient of friction.
3. The tread sweeper gap adjusting device according to claim 1, wherein the tread sweeper body comprises a cylinder, a piston sleeve (8), a spring pull rod (9), a return spring (10), and a grinder;
the grinding device is characterized in that a piston is linearly and slidably connected in the cylinder body, a spring pull rod (9) is arranged in the cylinder body, a return spring (10) is sleeved on the outer side of the spring pull rod (9), a piston sleeve (8) is sleeved on the outer side of the return spring (10), a screw rod sleeve (7) is sleeved on the outer side of the piston sleeve (8), and one end of the piston sleeve (8) is connected with a grinding body.
4. Gap adjustment device for tread sweepers according to claim 3, characterized in that two bearings (6) are arranged at the inside end of the cylinder, two bearings (6) being arranged at the two ends of the nut (5).
5. The gap adjusting device for the tread sweeper according to claim 4, characterized in that a locking spring (3) is arranged in the cylinder body, and the locking spring (3) is sleeved on the locking bolt (1).
6. The gap adjustment device for a tread sweeper according to claim 1, wherein the nut (5) and the lead screw sleeve (7) are connected in a non-self-locking lead screw fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222197503.5U CN218141431U (en) | 2022-08-19 | 2022-08-19 | Tread cleaner is with clearance adjustment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222197503.5U CN218141431U (en) | 2022-08-19 | 2022-08-19 | Tread cleaner is with clearance adjustment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218141431U true CN218141431U (en) | 2022-12-27 |
Family
ID=84552100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222197503.5U Active CN218141431U (en) | 2022-08-19 | 2022-08-19 | Tread cleaner is with clearance adjustment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218141431U (en) |
-
2022
- 2022-08-19 CN CN202222197503.5U patent/CN218141431U/en active Active
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