CN220399536U - Contact resistance detection device of crane current collector and trolley wire - Google Patents

Abstract

The utility model discloses a contact resistance detection device of a crane current collector and a trolley wire, which belongs to the technical field of contact resistance detection equipment.

Description

Contact resistance detection device of crane current collector and trolley wire

Technical Field

The utility model relates to the technical field of contact resistance detection equipment, in particular to a contact resistance detection device for a crane current collector and a trolley wire.

Background

The trolley line functions to transfer the power from the power source to the device, typically along with a current collector. The current collector is an important part in equipment such as a crane and the like, and is used for guiding the trolley wire into the equipment so as to ensure the normal operation of the equipment. The contact between the trolley line and the current collector is usually realized by a spring and other devices so as to ensure good contact; the size of the contact resistance can directly influence the use effect and the safety of the crane. If the contact resistance is too large, current transmission is not smooth, so that the operation efficiency of the crane is affected; if the contact resistance is large to a certain extent, friction of a contact surface in a normal operation process is increased, heating is caused, sparks are generated, overload and damage of electrical equipment are caused, and even safety accidents such as fire disaster and the like are caused; when the trolley line is used, regular inspection and maintenance are required to ensure the normal use and safety of the trolley line;

the detection of the contact resistance is usually performed by using an electronic test instrument such as a multimeter or a contact resistance tester. The specific detection method is that the measurement range and the measurement mode of the test instrument are set, then two test needles of the test instrument are respectively connected to a current collector and a sliding contact wire, and the resistance value between the current collector and the sliding contact wire is measured through the test instrument, namely the contact resistance.

However, the length of the conducting wire connected with the testing needle of the currently used resistance tester is fixed, the conducting wire is overlong, the conducting wire is easy to prevent the detection of staff, and the conducting wire is repeatedly folded and then bound by the binding belt during storage, so that the use of the resistance tester is limited due to the fact that the binding belt is troublesome and laborious, and the flexibility of the use of the resistance tester is reduced.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the utility model aims to provide a contact resistance detection device for a crane current collector and a trolley wire, which can realize automatic winding of a wire, avoid the trouble of repeatedly folding the wire manually and binding the wire by using a binding belt, and is convenient and labor-saving, thereby improving the flexibility of equipment use, and preventing the wire from being overlong or too short and affecting the detection of contact resistance by workers.

2. Technical proposal

In order to solve the problems, the utility model adopts the following technical scheme.

The utility model provides a contact resistance detection device of hoist collector and wiping line, includes the detector main part, two first mounting grooves have been seted up on top one side of detector main part, rotate on the inside of first mounting groove and install the protection section of thick bamboo, be provided with the fixed axle on the inner wall of protection section of thick bamboo, rotate on the outer wall of fixed axle and install the roll-up roller, the second mounting groove has been seted up on the upper and lower both sides outer wall of roll-up roller, be fixed with the torsional spring on the inner wall of second mounting groove, and the other end of torsional spring is fixed in the outer wall of fixed axle, the winding has the wire on the outer wall of roll-up roller, the through-hole has been seted up to corresponding wire on one side of protection section of thick bamboo, be connected with the detection head on the one end that the wire passed the through-hole, be provided with spacing subassembly on the top of protection section of thick bamboo.

Further, the spacing subassembly includes a plurality of inclined plane draw-in grooves that the roll-up roller top was seted up, the jack-in groove has been seted up on the top of a guard cylinder, peg graft on the inside of jack-in groove has inclined bottom face plug-in rod, inclined bottom face plug-in rod extends to and is fixed with first stopper on the outside top of jack-in groove, just be located first stopper one side on the top of a guard cylinder and rotate and install first connecting rod, rotate on the outer wall middle part of first connecting rod and install the second connecting rod, and the other end of second connecting rod rotates and install in the outer wall of first stopper, be fixed with the spring on the outer wall of first connecting rod and be located first connecting rod one side, and the other end of spring is fixed in the outer wall of a guard cylinder.

Furthermore, the inclined plane of the inclined bottom surface inserting connection rod is matched with the inclined plane of the inclined plane clamping groove in parallel.

Further, a second limiting block is arranged on the outer wall of the inclined bottom surface inserting connection rod and above the inclined surface clamping groove.

Further, an annular sliding groove is formed in the inner wall of the first mounting groove, and an annular sliding block matched with the annular sliding groove is arranged on the outer wall of the protection cylinder

Further, an anti-joint ring is fixed on one side of the protection cylinder corresponding to the wire, and the wire penetrates through the inside of the anti-joint ring.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages that:

(1) According to the scheme, the winding roller is arranged, the torsion spring is matched to automatically wind the wire, the trouble that the wire is repeatedly folded and bound by the binding belt manually is avoided, the winding roller is convenient and labor-saving, and the extending length of the wire can be adjusted according to requirements, so that the flexibility of equipment use is improved, the wire is prevented from being overlong or too short, and the detection of the contact resistance by workers is affected.

Drawings

FIG. 1 is a schematic front perspective view of the present utility model;

FIG. 2 is a schematic side view in cross-section of the present utility model;

FIG. 3 is a schematic view of a partially cut-away structure of the present utility model;

the reference numerals in the figures illustrate:

1. a detector body; 2. a first mounting groove; 3. a protective cylinder; 4. a fixed shaft; 5. a winding roller; 6. a second mounting groove; 7. a torsion spring; 8. a wire; 9. a through hole; 10. an inclined surface clamping groove; 11. a detection head; 12. an annular slide block; 13. an annular chute; 14. anti-ring-saving; 15. a plug-in groove; 16. a first limiting block; 17. a first link; 18. a second link; 19. a spring; 20. the inclined bottom surface is inserted with a connecting rod; 21. and a second limiting block.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.

Example 1:

referring to fig. 1-3, a contact resistance detection device for a crane current collector and a trolley wire comprises a detector main body 1, wherein two first mounting grooves 2 are formed in one side of the top of the detector main body 1, a protection cylinder 3 is rotatably mounted in the first mounting grooves 2, a fixed shaft 4 is arranged on the inner wall of the protection cylinder 3, a winding roller 5 is rotatably mounted on the outer wall of the fixed shaft 4, second mounting grooves 6 are formed in the outer walls of the upper side and the lower side of the winding roller 5, a torsion spring 7 is fixed on the inner wall of the second mounting groove 6, the other end of the torsion spring 7 is fixed on the outer wall of the fixed shaft 4, a wire 8 is wound on the outer wall of the winding roller 5, a through hole 9 is formed in one side of the protection cylinder 3 corresponding to the wire 8, a detection head 11 is connected to one end of the wire 8 penetrating through the through hole 9, a limit component is arranged on the top of the protection cylinder 3, the arranged protection cylinder 3 can rotate along the pulling direction of the wire 8, the wire is prevented from being used, repeated bending is reduced, the service life of the wire is also facilitated, the wire is conveniently unfolded and stored, the length of the wire is adjusted, the influence on the contact resistance of a worker is avoided, and the contact resistance of the wire 8 is also improved; an annular sliding groove 13 is formed in the inner wall of the first mounting groove 2, and an annular sliding block 12 matched with the annular sliding groove 13 is arranged on the outer wall of the protection cylinder 3, so that the rotation of the protection cylinder 3 is stable;

referring to fig. 3, the limiting component includes a plurality of inclined clamping grooves 10 formed at the top of the winding roller 5, a plugging groove 15 is formed at the top of the protection cylinder 3, an inclined bottom plugging rod 20 is plugged into the interior of the plugging groove 15, a first limiting block 16 is fixed on the top end of the outer portion of the plugging groove 15, which extends to the inclined bottom plugging rod 20, a first connecting rod 17 is rotatably mounted at one side of the first limiting block 16 on the top of the protection cylinder 3, a second connecting rod 18 is rotatably mounted at the middle part of the outer wall of the first connecting rod 17, the other end of the second connecting rod 18 is rotatably mounted at the outer wall of the first limiting block 16, a spring 19 is fixed at one side of the first connecting rod 17 on the outer wall of the first connecting rod 17, and the other end of the spring 19 is fixed at the outer wall of the protection cylinder 3, so that the limiting and fixing of the winding roller 5 can be conveniently performed, thus the extending length of the wire 8 can be conveniently fixed, and the wire 8 can be conveniently contracted back due to the torsion spring 7, and the wire 8 is more practical; the inclined plane of the inclined bottom surface inserting and connecting rod 20 is matched with the inclined plane of the inclined plane clamping groove 10 in parallel, so that the limit of the inclined bottom surface inserting and connecting rod 20 and the inclined plane clamping groove 10 to the rotation of the winding roller 5 is avoided when the wire 8 is pulled to be unfolded, and the winding roller 5 can normally rotate; a second limiting block 21 is arranged on the outer wall of the inclined bottom surface inserting and connecting rod 20 and above the inclined surface clamping groove 10, so that the inclined bottom surface inserting and connecting rod 20 can be conveniently limited, and the inclined bottom surface inserting and connecting rod is prevented from being separated from the inserting and connecting groove 15;

referring to fig. 1-2, an anti-node ring 14 is fixed on one side of the protection barrel 3 corresponding to the wire 8, and the wire 8 passes through the inside of the anti-node ring 14, so as to prevent the wire from being knotted when the multi-wire 8 is contracted, and prevent the wire from being contained.

When in use: the wire 8 is pulled, the wire 8 is pulled out to a proper length according to the requirement, the first connecting rod 17 is driven to rotate due to the elastic force of the spring 19, the first connecting rod 17 drives the inclined bottom surface inserting rod 20 to be inserted into the inclined surface clamping groove 10 through the second connecting rod 18, so that the winding roller 5 is limited and fixed, when the wire 8 is required to be contracted, the first connecting rod 17 is pulled upwards by hands, the inclined bottom surface inserting rod 20 is driven to be separated from the inclined surface clamping groove 10, the torsion spring is matched, the winding roller 5 is driven, the winding head of the wire 8 is further driven, and the operation is simpler.

The above description is only of the preferred embodiments of the present utility model; the scope of the utility model is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present utility model, and the technical solution and the improvement thereof are all covered by the protection scope of the present utility model.

Claims (6)

1. The utility model provides a contact resistance detection device of hoist collector and wiping line, includes detector main part (1), its characterized in that: two first mounting grooves (2) are formed in one side of the top of the detector main body (1), a protection barrel (3) is rotatably mounted in the first mounting grooves (2), a fixing shaft (4) is arranged on the inner wall of the protection barrel (3), a winding roller (5) is rotatably mounted on the outer wall of the fixing shaft (4), second mounting grooves (6) are formed in the outer walls of the upper side and the lower side of the winding roller (5), torsion springs (7) are fixed on the inner wall of the second mounting grooves (6), the other ends of the torsion springs (7) are fixed on the outer wall of the fixing shaft (4), a wire (8) is wound on the outer wall of the winding roller (5), a through hole (9) is formed in one side of the protection barrel (3) corresponding to the wire (8), a detection head (11) is connected to one end of the wire (8) penetrating through the through hole (9), and a limiting component is arranged on the top of the protection barrel (3).

2. The device for detecting the contact resistance between a crane current collector and a trolley line according to claim 1, wherein: the limiting component comprises a plurality of inclined-plane clamping grooves (10) formed in the top of the winding roller (5), an inserting groove (15) is formed in the top of the protection barrel (3), an inclined-bottom inserting rod (20) is inserted into the inserting groove (15), a first limiting block (16) is fixed on the top end of the outer portion of the inserting groove (15) extending to the inserting groove (20), a first connecting rod (17) is rotatably mounted on the top of the protection barrel (3) and located on one side of the first limiting block (16), a second connecting rod (18) is rotatably mounted on the middle of the outer wall of the first connecting rod (17), the other end of the second connecting rod (18) is rotatably mounted on the outer wall of the first limiting block (16), a spring (19) is fixed on one side of the first connecting rod (17), and the other end of the spring (19) is fixed on the outer wall of the protection barrel (3).

3. The device for detecting the contact resistance between a crane current collector and a trolley line according to claim 2, wherein: the inclined plane of the inclined bottom surface inserting connection rod (20) is matched with the inclined plane of the inclined plane clamping groove (10) in parallel.

4. The device for detecting the contact resistance between a crane current collector and a trolley line according to claim 2, wherein: a second limiting block (21) is arranged on the outer wall of the inclined bottom surface inserting connection rod (20) and above the inclined surface clamping groove (10).

5. The device for detecting the contact resistance between a crane current collector and a trolley line according to claim 1, wherein: an annular sliding groove (13) is formed in the inner wall of the first mounting groove (2), and an annular sliding block (12) matched with the annular sliding groove (13) is arranged on the outer wall of the protection cylinder (3).

6. The device for detecting the contact resistance between a crane current collector and a trolley line according to claim 1, wherein: an anti-joint ring (14) is fixed on one side of the protection cylinder (3) corresponding to the wire (8), and the wire (8) passes through the inside of the anti-joint ring (14).