CN202810802U

CN202810802U - Counterweight regulating block

Info

Publication number: CN202810802U
Application number: CN 201220470175
Authority: CN
Inventors: 康奎州; 邹志刚; 马确惠; 刘志新; 程刚
Original assignee: Chengdu Bode Petroleum Equipment Manufacturing Co Ltd
Current assignee: Chengdu Bode Petroleum Equipment Manufacturing Co Ltd
Priority date: 2012-09-14
Filing date: 2012-09-14
Publication date: 2013-03-20
Anticipated expiration: 2022-09-14

Abstract

The utility model discloses a counterweight regulating device which is used in drilling equipment and can be used for improving the reliability of counterweight regulation. The counterweight regulating device comprises a walking beam and a counterweight group movably sleeved on the walking beam, wherein the walking beam is provided with seat bodies positioned on the front and rear sides of the counterweight group; the seat bodies are provided with jack screws capable of pushing the balance block group to move on the walking beam. During operation, the movement of the counterweight group is realized by virtue of the rotation of the jack screws, so that through holes through which screw rods can pass are not required to be drilled in the counterweight group; and in addition, compared with the screw rods in the background technology, the jack screws has greatly shortened length, after the length is shortened, correspondingly the diameter also can be greatly reduced, but the working strength of the jack screws can still be guaranteed, and the jack screws can be processed and manufactured conveniently; and the counterweight regulating block is especially suitable for being popularized and applied in a walking-beam counterweight regulating block on the drilling equipment.

Description

The balance weight adjusting device

Technical field

The utility model discloses a kind of counterweight adjusting device, be specifically related to a kind of balance weight adjusting device of using at drilling-production equipment.

Background technology

At present, such as Fig. 1 and shown in Figure 2, traditional conventional formula beam-balanced pumping unit, its balance weight adjusting device relies on the hold-down nut C on the walking beam A two ends leading screw B to regulate, and leading screw B will pass all balance weight D, and this just causes the length of leading screw B often to surpass 1 meter, seem not only thin but also long.Because balance weight D adopts forging type more, in order to guarantee that leading screw B is unlikely to become curved because of the pressure unstability that is subject to balance weight D, so leading screw B requires to have a very large diameter, general diameter is without more than 25mm, in order to realize the full adjustment of balance weight D, this leading screw B must be full silk, and this brings certain difficulty with regard to the machine of giving leading screw B.In order to prevent that the leading screw on the balance weight D from blocking leading screw B because direct casting position deviation is large by the hole when assembling, balance weight D can't be moved along leading screw B, this hole needs machine.

The utility model content

Technical problem to be solved in the utility model provides a kind of balance weight adjusting device, can improve the adjusting reliability to balance weight.

The technical scheme that its technical problem that solves the utility model adopts is: the balance weight adjusting device, comprise walking beam and the movable balance weight group that is set on the walking beam, be provided with the pedestal that is positioned at both sides, balance weight group front and back at walking beam, be provided with at pedestal and can promote the jackscrew that the balance weight group is moved at walking beam.

As preferred technical scheme, both sides are provided with two pedestals before and after the balance weight group, and two pedestals of both sides all are arranged symmetrically on the walking beam before and after the balance weight group.

Further be that the axis of described jackscrew is parallel to the fitting face of balance weight group and walking beam.

Further be to be provided with many group pedestal connecting through holes at walking beam.

The beneficial effects of the utility model are: the turn that moves through jackscrew of balance weight group realizes, like this, does not just need to be drilled with the through hole by screw mandrel in the balance weight group again; The length of jackscrew is for the leading screw in the background technology in addition, can greatly shorten, behind contraction in length, correspondingly, its diameter also can dwindle greatly, but still can guarantee the working strength of jackscrew, and also be convenient to the processing and fabricating of jackscrew, be particluarly suitable for applying in the walking-beam counterweight adjusting device on the drilling-production equipment.

Description of drawings

Fig. 1 is the structural representation of balance weight in the prior art;

Fig. 2 is the structural representation that in the prior art balance weight is assembled on the walking beam;

Fig. 3 is assembly structure schematic diagram of the present utility model;

Fig. 4 is the top view of Fig. 3;

Fig. 5 is the structural representation of walking beam in the utility model;

Fig. 6 is the top view of Fig. 5;

Fig. 7 is the structural representation of balance weight in the utility model.

Reference numeral among Fig. 1 to Fig. 2 is: walking beam A, leading screw B, hold-down nut C, balance weight D;

Reference numeral among Fig. 3 to Fig. 7 is: walking beam 1, balance weight group 2, pedestal 3, jackscrew 4, pedestal connecting through hole 5.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further specified.

Extremely shown in Figure 7 such as Fig. 3, balance weight adjusting device of the present utility model, comprise walking beam 1 and the movable balance weight group 2 that is set on the walking beam 1, be provided with the pedestal 3 that is positioned at both sides, balance weight group 2 front and back at walking beam 1, be provided with at pedestal 3 and can promote balance weight group 2 at the jackscrew 4 of walking beam 1 motion.Need to prove, in the utility model the front and back of indication as shown in Figure 3, left is the front side of balance weight group 2, right-hand is the rear side of balance weight group 2.In the work, in the time of balance weight group 2 need to being moved toward the right side of walking beam 1, become flexible first the jackscrew 4 of balance weight group 2 rear sides, make balance weight group 2 have a space, then by the jackscrew 4 of turn balance weight group 2 front sides, can promote the right side motion toward walking beam 1 on walking beam 1 of balance weight group 2 by jackscrew 4; And in the time balance weight group 2 need to being moved toward the left side of walking beam 1, can become flexible first the jackscrew 4 of balance weight group 2 front sides, then by the jackscrew 4 of turn balance weight group 2 rear sides, can promote the left side motion toward walking beam 1 on walking beam 1 of balance weight groups 2 by jackscrew 4.Can find out from its course of work, the turn that moves through jackscrew 4 of balance weight group 2 realizes, like this, does not just need to be drilled with the through hole by screw mandrel in balance weight group 2 again, contrast by Fig. 1 and Fig. 7 can find there has not been to pass the through hole of leading screw among Fig. 7; In addition, because the motion of balance weight group 2 is the turn realizations by jackscrew 4, so, the length of jackscrew 4 is for the leading screw in the background technology, can greatly shorten, behind contraction in length, correspondingly, its diameter also can dwindle greatly, still can guarantee the working strength of jackscrew 4, also be convenient to the processing and fabricating of jackscrew 4, can be set to 150mm such as the length of jackscrew 4 and get final product, reduced is that 20mm gets final product.

In the above-described embodiment, can only in both sides, balance weight group 2 front and back a pedestal 3 be set respectively, but when regulating, to cause the power that is applied on the balance weight group 2 unbalanced, therefore, as preferred mode, be provided with two pedestals 3 in both sides, balance weight group 2 front and back, and two pedestals 3 of both sides, balance weight group 2 front and back are arranged symmetrically in all on the walking beam 1.Two pedestals 3 that are balance weight group 2 front sides are arranged symmetrically on the walking beam 1, and two pedestals 3 of balance weight group 2 rear sides also are arranged symmetrically on the walking beam 1.Like this, when regulating, because two pedestals 3 of both sides, balance weight group 2 front and back all are arranged symmetrically on the walking beam 1, can guarantee that jackscrew 4 acts on the dynamics equilibrium on the balance weight group 2, is beneficial to the movement of balance weight group 2.As among Fig. 3 to Fig. 6, walking beam 1 adopts i shaped steel, each two pedestal 3 of both sides, balance weight group 2 front and back can be arranged symmetrically in the web both sides of i shaped steel.

For the better mobile effect that improves balance weight group 2, the axis of described jackscrew 4 is parallel to the fitting face of balance weight group 2 and walking beam 1.Like this, can guarantee in the process of turn jackscrew 4 that the active force that jackscrew 4 is applied on the balance weight group 2 is consistent with the moving direction of balance weight group 2, avoid causing that balance weight group 2 is clamped on the walking beam 1 in the moving process.

In the above embodiment, after the change of distance between the side of front and back after 2 combinations of balance weight group, be balance weight group 2 after the entire length on the walking beam 1 changes, in order corresponding to regulate the position of pedestal 3 and jackscrew 4, be provided with many group pedestal connecting through holes 5 at walking beam 1.Like this, the position that just can make pedestal 3 and jackscrew 4 changes flexibly with the entire length of balance weight group 2, adapts to different work counterweight requirements.

Claims

1. balance weight adjusting device, comprise that walking beam (1) and activity are set on the balance weight group (2) on the walking beam (1), it is characterized in that: be provided with the pedestal (3) that is positioned at both sides, balance weight group (2) front and back at walking beam (1), be provided with at pedestal (3) and can promote balance weight group (2) at the jackscrew (4) of walking beam (1) motion.

2. balance weight adjusting device as claimed in claim 1 is characterized in that: be provided with two pedestals (3) in both sides, balance weight group (2) front and back, and two pedestals (3) of both sides are arranged symmetrically in all on the walking beam (1) before and after the balance weight group (2).

3. balance weight adjusting device as claimed in claim 2 is characterized in that: the axis of described jackscrew (4) is parallel to the fitting face of balance weight group (2) and walking beam (1).

4. such as claim 1,2 or 3 described balance weight adjusting devices, it is characterized in that: be provided with many group pedestal connecting through holes (5) at walking beam (1).