CN204472485U - A kind of equalizing bar suspension - Google Patents

Abstract

The utility model relates to a balance beam suspension, which comprises a balance beam, a concentric shaft, a suspension support, a thrust rod support and an upper thrust rod. There are two balance beams, and the middle parts of the two balance beams are Embedded with a first pin shaft, the two balance beams are symmetrically sleeved on both ends of the concentric shaft, and the two ends of the concentric shaft are vertically inserted through the first pins of the two balance beams In the shaft, joint bearings are embedded at both ends of the two balance beams, and a second pin shaft is arranged in the joint bearings; the suspension support is placed above the two balance beams, And respectively fixedly connected with the two balance beams, the thrust rod support is placed on the upper end of the suspension support, and the upper thrust rod is sleeved on the thrust rod support. Compared with the prior art, the utility model can lower the center of gravity of the vehicle body, avoid parts from breaking, improve reliability, and have a long service life.

Description

A balance beam suspension

technical field

The utility model relates to the technical field of a balance beam suspension, in particular to a balance beam suspension used for a special chassis vehicle in an oil field.

Background technique

The special chassis used for drilling and workover rigs in the oil field has a low frequency of mobile transportation, large load capacity, high center of gravity, low vehicle speed, and poor road conditions. The traditional balanced suspension often breaks the lower thrust rod and its connecting bolts , the fracture of the rear suspension balance bearing shell and other problems can no longer meet the use characteristics and use environment of the special chassis of the drilling and workover rig, so it is necessary to solve these problems.

Utility model content

The technical problem to be solved by the utility model is to provide a balance beam suspension that can lower the center of gravity of the vehicle body, avoid breakage of accessories, improve reliability, and have a long service life.

The technical scheme of the utility model for solving the above-mentioned technical problems is as follows: a balance beam suspension, including a balance beam, a concentric shaft, a suspension support, a thrust rod support and an upper thrust rod, and the balance beam is provided with two, two The middle parts of each of the balance beams are embedded with a first pin shaft, and the two balance beams are symmetrically sleeved on both ends of the concentric shafts, and the two ends of the concentric shafts are vertically interspersed between the two In the first pin shaft of the balance beam, joint bearings are embedded at both ends of the two balance beams, and a second pin shaft is arranged in the joint bearing; the suspension support is placed on the two between the balance beams, and are respectively fixedly connected with the two balance beams, the thrust rod support is placed on the upper end of the suspension support, and the upper thrust rod is sleeved on the thrust rod support superior.

The beneficial effects of the utility model are: the balance beam suspension assembled with accessories such as the balance beam, the concentric shaft, the suspension support, the thrust rod support and the upper thrust rod cancels the bearing and the bearing shell, effectively reducing the The height of the vehicle can effectively reduce the center of gravity of the vehicle; the original lower thrust rod is canceled, which avoids the fracture of the lower thrust rod and the bearing shell, improves the reliability of the device, and prolongs the service life.

On the basis of the above technical solutions, the utility model can also be improved as follows.

Further, the two balance beams can rotate clockwise or counterclockwise by 10-20 degrees around the first pin shaft in the middle.

Further, the two balance beams can rotate clockwise or counterclockwise by 15 degrees around the first pin shaft in the middle.

The beneficial effect of adopting the above further solution is that the balance beam can effectively buffer the bumps caused by bad road conditions through rotation, and the reliability of the device is improved.

Further, the balance beam is a non-deformable rigid balance beam.

The beneficial effect of adopting the above further solution is that the rigid balance beam ensures the reliability of the suspension.

Further, the suspension support is connected to the two balance beams through welding, pin connection or integral molding.

The beneficial effect of adopting the above further solution is: the reliability of the suspension is improved.

Description of drawings

Fig. 1 is the front view of a kind of balance beam suspension of the utility model;

Figure 2 is a top view of the balance beam and the upper thrust rod.

In the accompanying drawings, the list of parts represented by each label is as follows:

1. Balance beam, 2. Concentric shaft, 3. Suspension support, 4. Thrust rod support, 5. Upper thrust rod, 6. First pin shaft, 7. Joint bearing, 8. Second pin shaft.

detailed description

The principles and features of the present utility model are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the utility model, and are not used to limit the scope of the utility model.

As shown in Figures 1 and 2, a balance beam suspension includes a balance beam 1, a concentric shaft 2, a suspension support 3, a thrust rod support 4 and an upper thrust rod 5, and the balance beam 1 is provided with two First pin shafts 6 are embedded in the middle of the two balance beams 1, and the two balance beams 1 are symmetrically fitted on both ends of the concentric shaft 2, and the two ends of the concentric shaft 2 are respectively Vertically interspersed in the first pins 6 of the two balance beams 1, both ends of the two balance beams 1 are embedded with joint bearings 7, and the joint bearings 7 are provided with second pins Shaft 8; the suspension support 3 is placed above the two balance beams 1, and is fixedly connected with the two balance beams 1 respectively, and the thrust rod support 4 is placed on the suspension The upper end of the support 3 , the upper thrust rod 5 is sleeved on the thrust rod support 4 .

The initial state of the two balance beams 1 is horizontal and parallel, and the two balance beams 1 can rotate clockwise or counterclockwise by 10-20 degrees around the first pin shaft 6 in the middle.

The two balance beams 1 can rotate clockwise or counterclockwise by 15 degrees around the first pin shaft 6 in the middle.

The balance beam 1 is a non-deformable rigid balance beam.

The suspension support 3 is connected to the two balance beams 1 through welding, pin connection or integral molding.

To implement this device, the middle part of the balance beam 1 is connected to the suspension support 3 through the pin shaft 6, the suspension support 3 is fixedly connected to the vehicle frame through bolts, and the two ends of the balance beam 1 are respectively connected to the bottom of the front and rear axles. The supports are connected by pins, and the upper parts of the front and rear axles are connected with the frame through pins and upper thrust rods 5. When the front and rear axles are driven, the axles drive the chassis to move through the balance beam 1 and the upper thrust rods 5, and the drill When the workover rig is running on rough road conditions, one axle is raised and the other is lowered, and the vertical load of the two axles is the same, so as to avoid overloading the axles and tires due to the reduction of the load-carrying axle.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (5)

1. an equalizing bar suspension, it is characterized in that: comprise equalizing bar (1), concentric shafts (2), strut mount (3), propelling rod support (4) and upper thrust rod (5), described equalizing bar (1) is provided with two, the middle part of two described equalizing bars (1) is all embedded with the first bearing pin (6), two described equalizing bar (1) symmetries are sleeved on the two ends of described concentric shafts (2), and the two ends of described concentric shafts (2) are vertical respectively interts in described first bearing pin (6) of two described equalizing bars (1), the two ends of two described equalizing bars (1) are all embedded with oscillating bearing (7), the second bearing pin (8) is provided with in described oscillating bearing (7), described strut mount (3) is placed in the top between two described equalizing bars (1), and be fixedly connected with two described equalizing bars (1) respectively, described propelling rod support (4) is placed in the upper end of described strut mount (3), and described upper thrust rod (5) is sleeved on described propelling rod support (4).

2. a kind of equalizing bar suspension according to claim 1, is characterized in that: two described equalizing bars (1) all can the first bearing pin (6) cw in the middle part of it or left-hand revolution 10 ~ 20 degree.

3. a kind of equalizing bar suspension according to claim 2, is characterized in that: two described equalizing bars (1) all can the first bearing pin (6) cw in the middle part of it or left-hand revolution 15 degree.

4. a kind of equalizing bar suspension according to claim 1, is characterized in that: described equalizing bar (1) is non deformable rigid balancing beam.

5. a kind of equalizing bar suspension according to any one of Claims 1-4, is characterized in that: described strut mount (3) and two described equalizing bars (1) by being welded to connect, pinned connection or one-body molded.