CN210012534U

CN210012534U - Group-to-group jacking device

Info

Publication number: CN210012534U
Application number: CN201920706230.8U
Authority: CN
Inventors: 马桥石; 程小华; 杨建福
Original assignee: China Nuclear Industry Huaxing Construction Co Ltd
Current assignee: China Nuclear Industry Huaxing Construction Co Ltd
Priority date: 2019-05-16
Filing date: 2019-05-16
Publication date: 2020-02-04
Anticipated expiration: 2029-05-16

Abstract

The utility model relates to a jacking device, especially a group is to jacking device belong to nuclear power generating equipment technical field. The utility model discloses a group is to jacking device, including the support and settle jacking piece on the support, jacking piece comprises jacking rod, rack of settling on the jacking body of rod and the bracket of settling at jacking rod top, the support upper end be equipped with be used for with the gear that rack drive connects, the gear is through preventing falling the braking of ratchet pawl group, the one end of preventing falling ratchet pawl group is equipped with rather than matched with spanner. Through the meshing transmission of gear, rack, realize the jacking to the steel sheet part on the bracket. The utility model has the advantages that: structural design is reasonable, easy operation, and jacking efficiency is high, safe and reliable, convenient to use.

Description

Group-to-group jacking device

Technical Field

The utility model relates to a jacking device, especially a group is to jacking device belong to nuclear power generating equipment technical field.

Background

In the manufacturing process of the nuclear power whipping resistance device workshop, the workpiece weight factor influences the turnover group welding, and part parts need to be pushed into a narrow space from bottom to top to be assembled and mounted when being assembled and time-aligned. The conventional method is to install the cable by a hydraulic forklift and a manual screw jack, and the method has the following problems: the screw jack has slow lifting speed, low efficiency and short stroke. According to the size and the manufacturing requirement of the component, the workpiece jacking distance is larger than 400mm, a common screw jack only has a stroke of 110-200mm, the common screw jack cannot be jacked in place at one time, the jacking speed is too slow, and the work efficiency is low. The weight of the workpiece is not large, below 500kg, and the large-stroke electric jack on the market has large tonnage, high price and poor economy.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: to the jacking inefficiency that above-mentioned prior art exists, the short problem of stroke, provide a group to jacking device, improve jacking efficiency.

In order to reach above purpose, the utility model discloses a group is to jacking device, include the support and settle jacking piece on the support, jacking piece comprises the jacking pole, settles the rack on the jacking body of rod and settles the bracket at jacking pole top, the support upper end be equipped with be used for with the gear that rack drive connects, the gear is through preventing falling the braking of ratchet pawl group, the one end of preventing falling ratchet pawl group is equipped with rather than matched with spanner. Through the meshing transmission of gear, rack, realize the jacking to the steel sheet part on the bracket.

Furthermore, switch magnets are arranged at the end parts of the brackets, so that the steel plate is stabilized on the brackets and prevented from moving and sliding. The connection mode of rack, bracket and switch magnet is removable, conveniently saves and changes the bracket and the switch magnet of various models.

The upper end of the support is provided with a fixing piece used for placing a gear and an anti-falling ratchet pawl group, the fixing piece is a pair of hollow bosses extending outwards, the gear is located in the hollow part of the bosses, and the anti-falling ratchet pawl group is located on the outer side of the bosses. The anti-falling ratchet wheel pawl comprises a pair of ratchet wheels arranged on the gear transmission shaft, and a pawl used for braking the ratchet wheels is arranged on the outer side of each ratchet wheel. And a rack pawl for braking the rack is also arranged on the boss. The design of the ratchet wheel and the pawl can also prevent heavy objects on the bracket from falling, and the double protection is realized, so that the safety and the reliability are higher.

The rocker is connected to the one end of spanner, the mode of connection of spanner and rocker is removable.

The jacking piece is provided with a fixed position and a movable position, when the jacking piece is at the fixed position, the wrench moves upwards, the falling-prevention ratchet wheel and the pawl realize braking action, and the fixing of the jacking piece is completed; when the jacking piece is located at the movable position, the wrench moves downwards, and the gear drives the rack to move upwards to finish the lifting of the jacking piece.

The jacking device is provided with at least one group. When the steel plate is used, one or more groups of steel plates can be selected for combination according to the length and the size of the steel plates, and the steel plate is flexible and convenient.

The utility model has the advantages that: structural design is reasonable, easy operation, and jacking efficiency is high, safe and reliable, convenient to use.

Drawings

The present invention will be further described with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a reference diagram of the use state of fig. 1.

Fig. 3 is a reference diagram of another usage state of the present invention.

Detailed Description

Example one

The structure of this embodiment is as shown in fig. 1, a group is to jacking device, includes support 7 and settles jacking piece on the support, and jacking piece comprises jacking rod 3, rack 4 of settling on the jacking body of rod and the bracket 1 of settling at jacking rod top, and support 7 upper end is equipped with the gear 8 that is used for being connected with rack 4 transmission, and rack 4 passes through the screw and installs on jacking rod 3 physically to mesh with gear 8. The gear 8 is braked by the anti-falling ratchet pawl group 6, and one end of the anti-falling ratchet pawl group 6 is provided with a spanner 9 matched with the anti-falling ratchet pawl group. Through gear, rack meshing transmission, realize the jacking to the steel sheet part on the bracket 1. Switch magnet 2 is settled to the tip of bracket 1, and bracket 1 is installed on jacking rod 3 top with the screw, and the steel sheet can make the steel sheet not slide through switch magnet 2 absorption when placing on bracket 1. The connection mode of the rack 4, the bracket 1 and the switch magnet 2 is detachable, so that various types of brackets and switch magnets can be conveniently stored and replaced. The upper end of the support 7 is provided with a fixing piece for arranging the gear 8 and the anti-falling ratchet pawl group 6, the fixing piece is a pair of hollow bosses extending outwards, the gear 8 is located in the hollow part of the bosses, and the anti-falling ratchet pawl group 6 is located on the outer side of the bosses. The anti-falling ratchet wheel pawl comprises a pair of ratchet wheels arranged on the gear transmission shaft, and a pawl used for braking the ratchet wheels is arranged on the outer side of each ratchet wheel. The lug boss is also provided with a rack pawl 5 for braking the rack 4. The gear 8 and the anti-falling ratchet wheel and pawl combination 6 are arranged on the support 7 through a pin shaft, the rack and pawl 5 is arranged at the top end of a boss of the support 7 through another pin shaft, and the wrench 9 and the rocker 10 are detachable. The design of the ratchet wheel and the pawl can also prevent heavy objects on the bracket from falling, and the double protection is realized, so that the safety and the reliability are higher. One end of the wrench 9 is connected with the rocker 10, and the connection mode of the wrench 9 and the rocker 10 is detachable. The jacking piece is provided with a fixed position and a movable position, when the jacking piece is at the fixed position, the wrench 9 moves upwards, the falling-proof ratchet wheel and the pawl realize braking action, and the fixing of the jacking piece is completed; when the jacking piece is at an active position, the wrench 9 moves downwards, the gear 8 drives the rack 4 to move upwards, and the jacking piece is lifted. As shown in fig. 2, the jacking device has at least one set. When in use, according to the length and the size of the installation steel plate, a plurality of groups can be selected to be combined for use as shown in figure 3, and the device is flexible and convenient.

When the lifting device is used, the lifting rod is firstly descended to the required height, the parts are placed on the bracket and are firmly attracted by the switch magnet. The wrench and the rocker are installed well and controlled by the pawl when the rocker swings upwards, and the heights of the jacking rod and the workpiece on the bracket are kept. And the rocker is rocked downwards, the gear drives the transmission rack to move upwards through the transmission of the pin shaft, and the workpiece on the bracket is jacked. The device has multiple safety measures: the switch magnet can firmly attract the workpiece on the bracket to prevent the workpiece from sliding and falling; the rack pawl and the anti-falling ratchet wheel pawl set have double anti-falling measures, when a heavy object is pressed down, the pawl props against the rack and the ratchet wheel to prevent the ejector rod from moving downwards and prevent the workpiece from falling.

In addition to the above embodiments, the present invention may have other embodiments. All the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention.

Claims

1. The utility model provides a group is to jacking device, includes the support and settles jacking piece on the support, its characterized in that: the jacking piece is composed of a jacking rod, a rack arranged on the jacking rod body and a bracket arranged at the top of the jacking rod, a gear in transmission connection with the rack is arranged at the upper end of the support, the gear is braked by the anti-falling ratchet and pawl set, and a spanner matched with the anti-falling ratchet and pawl set is arranged at one end of the anti-falling ratchet and pawl set.

2. The set-up jacking device of claim 1, wherein: the switch magnet is arranged at the end part of the bracket, and the connection mode of the rack, the bracket and the switch magnet is detachable.

3. The set-up jacking device of claim 1, wherein: the upper end of the support is provided with a fixing piece used for placing a gear and an anti-falling ratchet pawl group, the fixing piece is a pair of hollow bosses extending outwards, the gear is located in the hollow part of the bosses, and the anti-falling ratchet pawl group is located on the outer side of the bosses.

4. The set-up jacking device of claim 3, wherein: the anti-falling ratchet wheel pawl comprises a pair of ratchet wheels arranged on the gear transmission shaft, and a pawl used for braking the ratchet wheels is arranged on the outer side of each ratchet wheel.

5. The set-up jacking device of claim 3, wherein: and a rack pawl for braking the rack is also arranged on the boss.

6. The set-up jacking device of claim 1, wherein: the rocker is connected to the one end of spanner, the mode of connection of spanner and rocker is removable.

7. The set-up jacking device of claim 1, wherein: the jacking piece is provided with a fixed position and a movable position, when the jacking piece is at the fixed position, the wrench moves upwards, the falling-prevention ratchet wheel and the pawl realize braking action, and the fixing of the jacking piece is completed; when the jacking piece is located at the movable position, the wrench moves downwards, and the gear drives the rack to move upwards to finish the lifting of the jacking piece.

8. The set-up jacking device of claim 1, wherein: the jacking device is provided with at least one group.