CN201580956U

CN201580956U - Special clamping device

Info

Publication number: CN201580956U
Application number: CN2009202335288U
Authority: CN
Inventors: 沈晨; 潘培毓; 周波
Original assignee: Bengbu Power Supply Co of State Grid Anhui Electric Power Co Ltd
Current assignee: Bengbu Power Supply Co Of State Grid Anhui Electric Power Supply Co; State Grid Corp of China SGCC
Priority date: 2009-08-03
Filing date: 2009-08-03
Publication date: 2010-09-15
Anticipated expiration: 2019-08-03

Abstract

A special clamping device is characterized in that two supporting arms are installed on a pair of tracks which is fixed to each other, the inner side of the front end of each supporting arm is fixed with a fork pin, the two fork pins are arranged oppositely, two lead screws with reverse rotating directions are installed on the upper track and respectively penetrate through one supporting arm to be in screw driving with the same, opposite ends of the two lead screws are connected with clutch discs which are engaged to each other, one end of one lead screw is connected with a driving mechanism, one lead screw is sleeved with a spring abutted against one clutch disc, a shift fork engaged with the clutch disc is arranged on the outer side of the clutch disc abutted with the spring, and a pull rod is hinged to the lower portion of the shift fork. The special clamping device is reasonable in structure and reliable in use, can resolve carrying problems of some special equipment and is particularly adaptable to carrying central-positioned high-voltage switch carts in the electric power industry when used with the existing hand-operated lifting carriers.

Description

A kind of special-purpose holding device

Technical field

The utility model relates to the holding device on the manual liftable transport trolley.

Background technology

Pallet fork and goods shelf that existing manual liftable transport trolley door frame is provided with are fixed to each other, transmission by the lifting mechanism on the door frame, pallet fork and goods shelf can together move up and down, and the pallet fork of this fork truck can only hold up goods from the bottom surface of goods, realizes the carrying to goods.For some special equipment, be provided with repeated hole in its both sides usually, the repeated hole that rises that then can't utilize the equipment both sides of existing manual liftable transport trolley is carried it.For addressing this problem, Chinese patent discloses a kind of pallet fork and goods shelf unitized construction, the main composition of this unitized construction is: at the track that is provided with on the goods shelf more than two, two pallet forks cooperate with slide, on two pallet forks, all be installed with bearing with threaded hole, and the thread rotary orientation of the tapped bore of two pallet fork upper brackets is opposite, leading screw is housed on goods shelf, bearing on two pallet forks is contained on the leading screw, respectively is fixed with a bolt in the inboard of two pallet fork front ends.After this unitized construction replaces the pallet fork and goods shelf that has now on the fork truck, promptly possessed the slave unit both sides and played repeated hole its function that holds up.The main deficiency that this unitized construction exists is: when carrying, need make equipment be in middle part between two pallet forks, promptly require the distance of two a bolts distance repeated hole identical, like this when rotational lead screw, just can make bolt on two pallet forks enter into the repeated hole that rises of equipment both sides simultaneously respectively, in the reality carrying, adjust comparatively bothering between two parties of equipment.In addition, the combinations thereof structure only depends on bolt to support in haulage equipment after equipment is sling, and equipment tilts easily, rocks in carrying.

The utility model content

The purpose of this utility model is to provide a kind of special-purpose holding device, and it can utilize the repeated hole that rises of equipment both sides that it is carried with after the door frame of existing manual liftable transport trolley combine, and easy to operate, easy when loading and unloading.

For achieving the above object, the utility model adopts following scheme: a kind of special-purpose holding device, two hold-down arms are housed on a pair of track that interfixes, the inboard of two hold-down arm front ends respectively is fixed with a bolt, two bolts are positioned opposite, two leading screws that rotation direction is opposite are housed on the track up, two leading screws pass a hold-down arm respectively, and and between hold-down arm worm drive, wherein an end of a leading screw is connected with transmission device, be connected with a clutch discs that cooperatively interacts respectively at two a leading screws end respect to one another, on a leading screw, be with clutch discs against spring, with spring against the outside of clutch discs be provided with the shift fork that is mated, the lower hinge of shift fork has pull bar.Behind pallet fork and goods shelf on the existing manual liftable transport trolley door frame of above-mentioned holding device replacement, drive the lifting of this holding device by the lifting mechanism on the transport trolley door frame.

By such scheme as seen, the transport trolley that possesses holding device provided by the utility model, when the equipment that both sides has been had repeated hole is carried, the bolt of two hold-down arm front end inboards is distinguished the repeated hole that rises of aligning equipment both sides, pass through under the joining state of clutch discs at two leading screws, handle transmission device, make two leading screw co-rotation, two bolts move in opposite directions respectively near two repeated holes, make the separation of the clutch discs that two leading screws are connected then, rotate a leading screw separately, two bolts are identical from being adjusted to apart from the lifting pitch-row, two leading screws are linked, be rotated further two leading screws then, two bolts can enter into repeated hole simultaneously, by the lifting mechanism on the door frame holding device is risen subsequently, equipment can be carried; When equipment is transported to the appointed place, holding device liter and equipment are fallen, backward rotation two leading screws oppositely move two bolts again, and two bolts then can withdraw from repeated hole.

The utility model is rational in infrastructure, use is reliable, it and existing manual liftable transport trolley are equipped with, can solve the carrying problem of some special equipments, this special-purpose holding device especially is suitable for carrying the middle high-voltage switch gear handcart in the power industry after being equipped with manual liftable transport trolley.

Description of drawings

The structural representation of Fig. 1 the utility model one embodiment;

The birds-eye view of Fig. 2 Fig. 1;

The A-A cutaway view of Fig. 3 Fig. 1;

The B of Fig. 4 Fig. 1 is to view.

The specific embodiment

Further specify the utility model below in conjunction with embodiment and accompanying drawing.

Referring to Fig. 1, Fig. 2

The special-purpose holding device that the utility model provides has a pair of track that interfixes 1, two track 1 and is connected and fixed by bracing frame 16, and the inboard that two hold-down arms, 5, two hold-down arms, 5 front ends are housed on two tracks 1 respectively is fixed with a bolt 4, two bolts 4 and is positioned opposite.Two leading screw 3 and leading screws 11 that rotation direction is opposite are housed on the track 1 up, leading screw 3 and leading screw 11 pass a hold-down arm 5 respectively, and and 5 of hold-down arms are worm drive, concrete structure is: a bearing seat 2 is equipped with at the two ends of track 1 up respectively, on two hold-down arms 5, be fixed with the axle sleeve 6 of a tool negative thread respectively, leading screw 3, leading screw 11 pass through thread connection with an axle sleeve 6 respectively, promptly two leading screws constitute screw-drive mechanism with an axle sleeve respectively, and the other end of leading screw 3, leading screw 11 is supported by a bearing seat 2 respectively.Be connected with a clutch discs that cooperatively interacts 7, clutch discs 8 respectively at leading screw 3, leading screw 11 ends respect to one another, clutch discs 7 constitutes a power-transfer clutch with clutch discs 8, on a leading screw 11, be with clutch discs 8 against spring 10, with spring 10 against the outside of clutch discs 8 be provided with the shift fork 9 that is mated, the middle part of shift fork 9 is hinged by bearing pin 17 and bracing frame 16, and the lower hinge of shift fork 9 has pull bar 13.

Referring to Fig. 2

Wherein the transmission device that is connected with of an end of a leading screw 11 includes conical gear 21, conical gear 22, a rotating shaft 19 and one handle 18, rotating shaft 19 is contained on the track 1 of top, conical gear 21, conical gear 22 are meshing with each other and are contained in an end of rotating shaft 19 and leading screw 11 respectively, and handle 18 is contained in the rotating shaft 19.In addition, be fixed with a casing 20 on track 1, conical gear 21, conical gear 22 are in the casing 20.

Referring to Fig. 1

Bottom at two hold-down arm front ends is connected with clasp 12 respectively, hangs with open auger and buckle 15 on clasp 12, and clasp 12 is buckled 15 with open auger and constituted combined hook.,, after the bolt 4 of this special-purpose holding device catches on equipment and lift, can avoid device inclined, rock being handled upside down complementary the catching in other positions of equipment by this combined hook.

Referring to Fig. 3

The upper and lower part of hold-down arm 5 rear sides is fixed with chute 5a, chute 5b, is on the chute 5a on top to be coated with bearing pin 25, and the bearing 24 that is equipped with on the bearing pin 25 is supported by the track 1 of top, and bearing pin 25 adopts bolts, at the front end of pivot pin 25 nut 26 is housed.Be in the chute 5b of bottom and track 1 bearing fit of below.

Referring to Fig. 1, Fig. 4

The bottom of track 1 up is fixed with a baffle plate 14, and pull bar 13 passes a hold-down arm 5 and baffle plate 14, has the chute 14a and the lock slots 14b that are interconnected on baffle plate 14, has the breach 13a that cooperates with lock slots 14b on pull bar 13.As seen from Figure 4, pull bar 13 rear portions are upwards lifted, and make pull bar 13 enter lock slots 14b, by cooperating of breach 13a and lock slots 14b, can be with pull bar 13 lockings.

In conjunction with Fig. 1, Fig. 2 as seen, the transport trolley that possesses holding device provided by the utility model, when the equipment 23 that both sides has been had repeated hole is carried, the bolt 4 of two hold-down arms, 5 front end inboards is distinguished a repeated hole 23a of aligning equipments 23 both sides, at two leading

screws

3,11 by clutch discs 7, under the clutch discs 8 joining states, bar handle 18, make two leading

screws

3,11 co-rotation, two bolts 4 move in opposite directions respectively near two repeated hole 23a, spur pull bar 13 then, make clutch discs 7 by shift fork 9, clutch discs 8 is separated, bar handle 18, make leading screw 11 main storys or counter-rotating separately, with two bolts 4 apart from the distance that plays repeated hole 23a be adjusted to identical after, discharge pull bar 13 again, make two leading screws by clutch discs 7, clutch discs 8 links, be rotated further handle 18 then, two bolts 4 can enter into repeated hole 23a simultaneously, by the lifting mechanism on the door frame this holding device are risen subsequently, can be with equipment 23 carryings; When equipment 23 is transported to the appointed place, this holding device and equipment are fallen, bar handle 18 rotates two leading

screws

3,11 again, and two bolts 4 are oppositely moved, and 4 of two bolts can withdraw from repeated hole 23a.

In addition, in conjunction with Fig. 4 as seen, when clutch discs 7, clutch discs 8 are in separation or bonding state, pull bar 13 rear portions are upwards lifted, and make pull bar 13 enter lock slots 14b, and can be with pull bar 13 locking, thus the separating of

clutch discs

7 and 8 of clutch discs guaranteed, in conjunction with reliable.

Claims

1. special-purpose holding device, two hold-down arms are housed on a pair of track that interfixes, the inboard of two hold-down arm front ends respectively is fixed with a bolt, two bolts are positioned opposite, it is characterized in that: two leading screws that rotation direction is opposite are housed on the track up, two leading screws pass a hold-down arm respectively, and and between hold-down arm worm drive, wherein an end of a leading screw is connected with transmission device, be connected with a clutch discs that cooperatively interacts respectively at two a leading screws end respect to one another, on a leading screw, be with clutch discs against spring, with spring against the outside of clutch discs be provided with the shift fork that is mated, the lower hinge of shift fork has pull bar.

2. special-purpose holding device according to claim 1, it is characterized in that: a bearing seat is equipped with at the two ends of track up respectively, on two hold-down arms, be fixed with the axle sleeve of a tool negative thread respectively, two leading screws pass through thread connection with an axle sleeve respectively, and the other end of two leading screws is supported by a bearing seat respectively.

3. special-purpose holding device according to claim 1, it is characterized in that: described transmission device includes a pair of conical gear, a rotating shaft and one handle, rotating shaft is contained on the track of top, two conical gears are meshing with each other and are contained in an end of a rotating shaft and a leading screw respectively, and handle is contained in the rotating shaft.

4. special-purpose holding device according to claim 1, it is characterized in that: the upper and lower part of hold-down arm rear side is fixed with chute, be on the chute on top and be coated with bearing pin, the bearing that is equipped with on the bearing pin is by the rail supported of top, and the chute that is in the bottom cooperates with the slide of below.

5. special-purpose holding device according to claim 1 is characterized in that: the bottom at two hold-down arm front ends is connected with clasp respectively, hangs with open auger and buckle on clasp.

6. special-purpose holding device according to claim 1, it is characterized in that: the bottom of track up is fixed with a baffle plate, pull bar passes a hold-down arm and baffle plate, has the chute and the lock slots that are interconnected on baffle plate, has the breach that cooperates with lock slots on pull bar.